Coverage Report

Created: 2024-05-21 06:29

/src/binutils-gdb/gas/ecoff.c
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Source (jump to first uncovered line)
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/* ECOFF debugging support.
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   Copyright (C) 1993-2024 Free Software Foundation, Inc.
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   Contributed by Cygnus Support.
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   This file was put together by Ian Lance Taylor <ian@cygnus.com>.  A
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   good deal of it comes directly from mips-tfile.c, by Michael
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   Meissner <meissner@osf.org>.
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   This file is part of GAS.
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   GAS is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3, or (at your option)
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   any later version.
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   GAS is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with GAS; see the file COPYING.  If not, write to the Free
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   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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   02110-1301, USA.  */
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#include "as.h"
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/* This file is compiled conditionally for those targets which use
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   ECOFF debugging information (e.g., MIPS ELF, Alpha ECOFF).  */
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#include "ecoff.h"
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#ifdef ECOFF_DEBUGGING
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#include "coff/internal.h"
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#include "coff/symconst.h"
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#include "aout/stab_gnu.h"
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#include "filenames.h"
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#include "safe-ctype.h"
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/* Why isn't this in coff/sym.h?  */
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#define ST_RFDESCAPE 0xfff
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/* This file constructs the information used by the ECOFF debugging
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   format.  It just builds a large block of data.
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   We support both ECOFF style debugging and stabs debugging (the
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   stabs symbols are encapsulated in ECOFF symbols).  This should let
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   us handle anything the compiler might throw at us.  */
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/* Here is a brief description of the MIPS ECOFF symbol table, by
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   Michael Meissner.  The MIPS symbol table has the following pieces:
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  Symbolic Header
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      |
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      +-- Auxiliary Symbols
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      |
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      +-- Dense number table
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      |
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      +-- Optimizer Symbols
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      |
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      +-- External Strings
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      |
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      +-- External Symbols
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      |
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      +-- Relative file descriptors
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      |
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      +-- File table
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        |
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        +-- Procedure table
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        |
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        +-- Line number table
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        |
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        +-- Local Strings
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        |
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        +-- Local Symbols
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   The symbolic header points to each of the other tables, and also
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   contains the number of entries.  It also contains a magic number
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   and MIPS compiler version number, such as 2.0.
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   The auxiliary table is a series of 32 bit integers, that are
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   referenced as needed from the local symbol table.  Unlike standard
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   COFF, the aux.  information does not follow the symbol that uses
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   it, but rather is a separate table.  In theory, this would allow
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   the MIPS compilers to collapse duplicate aux. entries, but I've not
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   noticed this happening with the 1.31 compiler suite.  The different
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   types of aux. entries are:
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    1)  dnLow: Low bound on array dimension.
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    2)  dnHigh: High bound on array dimension.
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    3)  isym: Index to the local symbol which is the start of the
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  function for the end of function first aux. entry.
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    4)  width: Width of structures and bitfields.
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    5)  count: Count of ranges for variant part.
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    6)  rndx: A relative index into the symbol table.  The relative
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  index field has two parts: rfd which is a pointer into the
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  relative file index table or ST_RFDESCAPE which says the next
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  aux. entry is the file number, and index: which is the pointer
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  into the local symbol within a given file table.  This is for
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  things like references to types defined in another file.
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    7)  Type information: This is like the COFF type bits, except it
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  is 32 bits instead of 16; they still have room to add new
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  basic types; and they can handle more than 6 levels of array,
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  pointer, function, etc.  Each type information field contains
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  the following structure members:
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      a)  fBitfield: a bit that says this is a bitfield, and the
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    size in bits follows as the next aux. entry.
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      b)  continued: a bit that says the next aux. entry is a
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    continuation of the current type information (in case
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    there are more than 6 levels of array/ptr/function).
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      c)  bt: an integer containing the base type before adding
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    array, pointer, function, etc. qualifiers.  The
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    current base types that I have documentation for are:
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      btNil   -- undefined
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      btAdr   -- address - integer same size as ptr
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      btChar    -- character
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      btUChar   -- unsigned character
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      btShort   -- short
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      btUShort  -- unsigned short
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      btInt   -- int
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      btUInt    -- unsigned int
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      btLong    -- long
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      btULong   -- unsigned long
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      btFloat   -- float (real)
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      btDouble  -- Double (real)
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      btStruct  -- Structure (Record)
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      btUnion   -- Union (variant)
138
      btEnum    -- Enumerated
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      btTypedef -- defined via a typedef isymRef
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      btRange   -- subrange of int
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      btSet   -- pascal sets
142
      btComplex -- fortran complex
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      btDComplex  -- fortran double complex
144
      btIndirect  -- forward or unnamed typedef
145
      btFixedDec  -- Fixed Decimal
146
      btFloatDec  -- Float Decimal
147
      btString  -- Varying Length Character String
148
      btBit   -- Aligned Bit String
149
      btPicture -- Picture
150
      btVoid    -- Void (MIPS cc revision >= 2.00)
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      d)  tq0 - tq5: type qualifier fields as needed.  The
153
    current type qualifier fields I have documentation for
154
    are:
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      tqNil   -- no more qualifiers
157
      tqPtr   -- pointer
158
      tqProc    -- procedure
159
      tqArray   -- array
160
      tqFar   -- 8086 far pointers
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      tqVol   -- volatile
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   The dense number table is used in the front ends, and disappears by
164
   the time the .o is created.
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   With the 1.31 compiler suite, the optimization symbols don't seem
167
   to be used as far as I can tell.
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   The linker is the first entity that creates the relative file
170
   descriptor table, and I believe it is used so that the individual
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   file table pointers don't have to be rewritten when the objects are
172
   merged together into the program file.
173
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   Unlike COFF, the basic symbol & string tables are split into
175
   external and local symbols/strings.  The relocation information
176
   only goes off of the external symbol table, and the debug
177
   information only goes off of the internal symbol table.  The
178
   external symbols can have links to an appropriate file index and
179
   symbol within the file to give it the appropriate type information.
180
   Because of this, the external symbols are actually larger than the
181
   internal symbols (to contain the link information), and contain the
182
   local symbol structure as a member, though this member is not the
183
   first member of the external symbol structure (!).  I suspect this
184
   split is to make strip easier to deal with.
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   Each file table has offsets for where the line numbers, local
187
   strings, local symbols, and procedure table starts from within the
188
   global tables, and the indices are reset to 0 for each of those
189
   tables for the file.
190
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   The procedure table contains the binary equivalents of the .ent
192
   (start of the function address), .frame (what register is the
193
   virtual frame pointer, constant offset from the register to obtain
194
   the VFP, and what register holds the return address), .mask/.fmask
195
   (bitmask of saved registers, and where the first register is stored
196
   relative to the VFP) assembler directives.  It also contains the
197
   low and high bounds of the line numbers if debugging is turned on.
198
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   The line number table is a compressed form of the normal COFF line
200
   table.  Each line number entry is either 1 or 3 bytes long, and
201
   contains a signed delta from the previous line, and an unsigned
202
   count of the number of instructions this statement takes.
203
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   The local symbol table contains the following fields:
205
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    1)  iss: index to the local string table giving the name of the
207
  symbol.
208
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    2)  value: value of the symbol (address, register number, etc.).
210
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    3)  st: symbol type.  The current symbol types are:
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      stNil   -- Nuthin' special
214
      stGlobal    -- external symbol
215
      stStatic    -- static
216
      stParam   -- procedure argument
217
      stLocal   -- local variable
218
      stLabel   -- label
219
      stProc    -- External Procedure
220
      stBlock   -- beginning of block
221
      stEnd   -- end (of anything)
222
      stMember    -- member (of anything)
223
      stTypedef   -- type definition
224
      stFile    -- file name
225
      stRegReloc    -- register relocation
226
      stForward   -- forwarding address
227
      stStaticProc  -- Static procedure
228
      stConstant    -- const
229
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    4)  sc: storage class.  The current storage classes are:
231
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      scText    -- text symbol
233
      scData    -- initialized data symbol
234
      scBss   -- un-initialized data symbol
235
      scRegister    -- value of symbol is register number
236
      scAbs   -- value of symbol is absolute
237
      scUndefined   -- who knows?
238
      scCdbLocal    -- variable's value is IN se->va.??
239
      scBits    -- this is a bit field
240
      scCdbSystem   -- value is IN debugger's address space
241
      scRegImage    -- register value saved on stack
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      scInfo    -- symbol contains debugger information
243
      scUserStruct  -- addr in struct user for current process
244
      scSData   -- load time only small data
245
      scSBss    -- load time only small common
246
      scRData   -- load time only read only data
247
      scVar   -- Var parameter (fortranpascal)
248
      scCommon    -- common variable
249
      scSCommon   -- small common
250
      scVarRegister -- Var parameter in a register
251
      scVariant   -- Variant record
252
      scSUndefined  -- small undefined(external) data
253
      scInit    -- .init section symbol
254
255
    5)  index: pointer to a local symbol or aux. entry.
256
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   For the following program:
258
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  #include <stdio.h>
260
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  main(){
262
    printf("Hello World!\n");
263
    return 0;
264
  }
265
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   Mips-tdump produces the following information:
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   Global file header:
269
       magic number             0x162
270
       # sections               2
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       timestamp                645311799, Wed Jun 13 17:16:39 1990
272
       symbolic header offset   284
273
       symbolic header size     96
274
       optional header          56
275
       flags                    0x0
276
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   Symbolic header, magic number = 0x7009, vstamp = 1.31:
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       Info                      Offset      Number       Bytes
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       ====                      ======      ======      =====
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       Line numbers                 380           4           4 [13]
283
       Dense numbers                  0           0           0
284
       Procedures Tables            384           1          52
285
       Local Symbols                436          16         192
286
       Optimization Symbols           0           0           0
287
       Auxiliary Symbols            628          39         156
288
       Local Strings                784          80          80
289
       External Strings             864         144         144
290
       File Tables                 1008           2         144
291
       Relative Files                 0           0           0
292
       External Symbols            1152          20         320
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   File #0, "hello2.c"
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       Name index  = 1          Readin      = No
297
       Merge       = No         Endian      = LITTLE
298
       Debug level = G2         Language    = C
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       Adr         = 0x00000000
300
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       Info                       Start      Number        Size      Offset
302
       ====                       =====      ======        ====      ======
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       Local strings                  0          15          15         784
304
       Local symbols                  0           6          72         436
305
       Line numbers                   0          13          13         380
306
       Optimization symbols           0           0           0           0
307
       Procedures                     0           1          52         384
308
       Auxiliary symbols              0          14          56         628
309
       Relative Files                 0           0           0           0
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    There are 6 local symbols, starting at 436
312
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  Symbol# 0: "hello2.c"
314
      End+1 symbol  = 6
315
      String index  = 1
316
      Storage class = Text        Index  = 6
317
      Symbol type   = File        Value  = 0
318
319
  Symbol# 1: "main"
320
      End+1 symbol  = 5
321
      Type          = int
322
      String index  = 10
323
      Storage class = Text        Index  = 12
324
      Symbol type   = Proc        Value  = 0
325
326
  Symbol# 2: ""
327
      End+1 symbol  = 4
328
      String index  = 0
329
      Storage class = Text        Index  = 4
330
      Symbol type   = Block       Value  = 8
331
332
  Symbol# 3: ""
333
      First symbol  = 2
334
      String index  = 0
335
      Storage class = Text        Index  = 2
336
      Symbol type   = End         Value  = 28
337
338
  Symbol# 4: "main"
339
      First symbol  = 1
340
      String index  = 10
341
      Storage class = Text        Index  = 1
342
      Symbol type   = End         Value  = 52
343
344
  Symbol# 5: "hello2.c"
345
      First symbol  = 0
346
      String index  = 1
347
      Storage class = Text        Index  = 0
348
      Symbol type   = End         Value  = 0
349
350
    There are 14 auxiliary table entries, starting at 628.
351
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  * #0               0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
353
  * #1              24, [  24/      0], [ 6 0:0 0:0:0:0:0:0]
354
  * #2               8, [   8/      0], [ 2 0:0 0:0:0:0:0:0]
355
  * #3              16, [  16/      0], [ 4 0:0 0:0:0:0:0:0]
356
  * #4              24, [  24/      0], [ 6 0:0 0:0:0:0:0:0]
357
  * #5              32, [  32/      0], [ 8 0:0 0:0:0:0:0:0]
358
  * #6              40, [  40/      0], [10 0:0 0:0:0:0:0:0]
359
  * #7              44, [  44/      0], [11 0:0 0:0:0:0:0:0]
360
  * #8              12, [  12/      0], [ 3 0:0 0:0:0:0:0:0]
361
  * #9              20, [  20/      0], [ 5 0:0 0:0:0:0:0:0]
362
  * #10             28, [  28/      0], [ 7 0:0 0:0:0:0:0:0]
363
  * #11             36, [  36/      0], [ 9 0:0 0:0:0:0:0:0]
364
    #12              5, [   5/      0], [ 1 1:0 0:0:0:0:0:0]
365
    #13             24, [  24/      0], [ 6 0:0 0:0:0:0:0:0]
366
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    There are 1 procedure descriptor entries, starting at 0.
368
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  Procedure descriptor 0:
370
      Name index   = 10          Name          = "main"
371
      .mask 0x80000000,-4        .fmask 0x00000000,0
372
      .frame $29,24,$31
373
      Opt. start   = -1          Symbols start = 1
374
      First line # = 3           Last line #   = 6
375
      Line Offset  = 0           Address       = 0x00000000
376
377
  There are 4 bytes holding line numbers, starting at 380.
378
      Line           3,   delta     0,   count  2
379
      Line           4,   delta     1,   count  3
380
      Line           5,   delta     1,   count  2
381
      Line           6,   delta     1,   count  6
382
383
   File #1, "/usr/include/stdio.h"
384
385
    Name index  = 1          Readin      = No
386
    Merge       = Yes        Endian      = LITTLE
387
    Debug level = G2         Language    = C
388
    Adr         = 0x00000000
389
390
    Info                       Start      Number        Size      Offset
391
    ====                       =====      ======        ====      ======
392
    Local strings                 15          65          65         799
393
    Local symbols                  6          10         120         508
394
    Line numbers                   0           0           0         380
395
    Optimization symbols           0           0           0           0
396
    Procedures                     1           0           0         436
397
    Auxiliary symbols             14          25         100         684
398
    Relative Files                 0           0           0           0
399
400
    There are 10 local symbols, starting at 442
401
402
  Symbol# 0: "/usr/include/stdio.h"
403
      End+1 symbol  = 10
404
      String index  = 1
405
      Storage class = Text        Index  = 10
406
      Symbol type   = File        Value  = 0
407
408
  Symbol# 1: "_iobuf"
409
      End+1 symbol  = 9
410
      String index  = 22
411
      Storage class = Info        Index  = 9
412
      Symbol type   = Block       Value  = 20
413
414
  Symbol# 2: "_cnt"
415
      Type          = int
416
      String index  = 29
417
      Storage class = Info        Index  = 4
418
      Symbol type   = Member      Value  = 0
419
420
  Symbol# 3: "_ptr"
421
      Type          = ptr to char
422
      String index  = 34
423
      Storage class = Info        Index  = 15
424
      Symbol type   = Member      Value  = 32
425
426
  Symbol# 4: "_base"
427
      Type          = ptr to char
428
      String index  = 39
429
      Storage class = Info        Index  = 16
430
      Symbol type   = Member      Value  = 64
431
432
  Symbol# 5: "_bufsiz"
433
      Type          = int
434
      String index  = 45
435
      Storage class = Info        Index  = 4
436
      Symbol type   = Member      Value  = 96
437
438
  Symbol# 6: "_flag"
439
      Type          = short
440
      String index  = 53
441
      Storage class = Info        Index  = 3
442
      Symbol type   = Member      Value  = 128
443
444
  Symbol# 7: "_file"
445
      Type          = char
446
      String index  = 59
447
      Storage class = Info        Index  = 2
448
      Symbol type   = Member      Value  = 144
449
450
  Symbol# 8: ""
451
      First symbol  = 1
452
      String index  = 0
453
      Storage class = Info        Index  = 1
454
      Symbol type   = End         Value  = 0
455
456
  Symbol# 9: "/usr/include/stdio.h"
457
      First symbol  = 0
458
      String index  = 1
459
      Storage class = Text        Index  = 0
460
      Symbol type   = End         Value  = 0
461
462
    There are 25 auxiliary table entries, starting at 642.
463
464
  * #14             -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
465
    #15          65544, [   8/     16], [ 2 0:0 1:0:0:0:0:0]
466
    #16          65544, [   8/     16], [ 2 0:0 1:0:0:0:0:0]
467
  * #17         196656, [  48/     48], [12 0:0 3:0:0:0:0:0]
468
  * #18           8191, [4095/      1], [63 1:1 0:0:0:0:f:1]
469
  * #19              1, [   1/      0], [ 0 1:0 0:0:0:0:0:0]
470
  * #20          20479, [4095/      4], [63 1:1 0:0:0:0:f:4]
471
  * #21              1, [   1/      0], [ 0 1:0 0:0:0:0:0:0]
472
  * #22              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
473
  * #23              2, [   2/      0], [ 0 0:1 0:0:0:0:0:0]
474
  * #24            160, [ 160/      0], [40 0:0 0:0:0:0:0:0]
475
  * #25              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
476
  * #26              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
477
  * #27              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
478
  * #28              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
479
  * #29              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
480
  * #30              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
481
  * #31              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
482
  * #32              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
483
  * #33              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
484
  * #34              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
485
  * #35              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
486
  * #36              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
487
  * #37              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
488
  * #38              0, [   0/      0], [ 0 0:0 0:0:0:0:0:0]
489
490
    There are 0 procedure descriptor entries, starting at 1.
491
492
   There are 20 external symbols, starting at 1152
493
494
  Symbol# 0: "_iob"
495
      Type          = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
496
      String index  = 0           Ifd    = 1
497
      Storage class = Nil         Index  = 17
498
      Symbol type   = Global      Value  = 60
499
500
  Symbol# 1: "fopen"
501
      String index  = 5           Ifd    = 1
502
      Storage class = Nil         Index  = 1048575
503
      Symbol type   = Proc        Value  = 0
504
505
  Symbol# 2: "fdopen"
506
      String index  = 11          Ifd    = 1
507
      Storage class = Nil         Index  = 1048575
508
      Symbol type   = Proc        Value  = 0
509
510
  Symbol# 3: "freopen"
511
      String index  = 18          Ifd    = 1
512
      Storage class = Nil         Index  = 1048575
513
      Symbol type   = Proc        Value  = 0
514
515
  Symbol# 4: "popen"
516
      String index  = 26          Ifd    = 1
517
      Storage class = Nil         Index  = 1048575
518
      Symbol type   = Proc        Value  = 0
519
520
  Symbol# 5: "tmpfile"
521
      String index  = 32          Ifd    = 1
522
      Storage class = Nil         Index  = 1048575
523
      Symbol type   = Proc        Value  = 0
524
525
  Symbol# 6: "ftell"
526
      String index  = 40          Ifd    = 1
527
      Storage class = Nil         Index  = 1048575
528
      Symbol type   = Proc        Value  = 0
529
530
  Symbol# 7: "rewind"
531
      String index  = 46          Ifd    = 1
532
      Storage class = Nil         Index  = 1048575
533
      Symbol type   = Proc        Value  = 0
534
535
  Symbol# 8: "setbuf"
536
      String index  = 53          Ifd    = 1
537
      Storage class = Nil         Index  = 1048575
538
      Symbol type   = Proc        Value  = 0
539
540
  Symbol# 9: "setbuffer"
541
      String index  = 60          Ifd    = 1
542
      Storage class = Nil         Index  = 1048575
543
      Symbol type   = Proc        Value  = 0
544
545
  Symbol# 10: "setlinebuf"
546
      String index  = 70          Ifd    = 1
547
      Storage class = Nil         Index  = 1048575
548
      Symbol type   = Proc        Value  = 0
549
550
  Symbol# 11: "fgets"
551
      String index  = 81          Ifd    = 1
552
      Storage class = Nil         Index  = 1048575
553
      Symbol type   = Proc        Value  = 0
554
555
  Symbol# 12: "gets"
556
      String index  = 87          Ifd    = 1
557
      Storage class = Nil         Index  = 1048575
558
      Symbol type   = Proc        Value  = 0
559
560
  Symbol# 13: "ctermid"
561
      String index  = 92          Ifd    = 1
562
      Storage class = Nil         Index  = 1048575
563
      Symbol type   = Proc        Value  = 0
564
565
  Symbol# 14: "cuserid"
566
      String index  = 100         Ifd    = 1
567
      Storage class = Nil         Index  = 1048575
568
      Symbol type   = Proc        Value  = 0
569
570
  Symbol# 15: "tempnam"
571
      String index  = 108         Ifd    = 1
572
      Storage class = Nil         Index  = 1048575
573
      Symbol type   = Proc        Value  = 0
574
575
  Symbol# 16: "tmpnam"
576
      String index  = 116         Ifd    = 1
577
      Storage class = Nil         Index  = 1048575
578
      Symbol type   = Proc        Value  = 0
579
580
  Symbol# 17: "sprintf"
581
      String index  = 123         Ifd    = 1
582
      Storage class = Nil         Index  = 1048575
583
      Symbol type   = Proc        Value  = 0
584
585
  Symbol# 18: "main"
586
      Type          = int
587
      String index  = 131         Ifd    = 0
588
      Storage class = Text        Index  = 1
589
      Symbol type   = Proc        Value  = 0
590
591
  Symbol# 19: "printf"
592
      String index  = 136         Ifd    = 0
593
      Storage class = Undefined   Index  = 1048575
594
      Symbol type   = Proc        Value  = 0
595
596
   The following auxiliary table entries were unused:
597
598
    #0               0  0x00000000  void
599
    #2               8  0x00000008  char
600
    #3              16  0x00000010  short
601
    #4              24  0x00000018  int
602
    #5              32  0x00000020  long
603
    #6              40  0x00000028  float
604
    #7              44  0x0000002c  double
605
    #8              12  0x0000000c  unsigned char
606
    #9              20  0x00000014  unsigned short
607
    #10             28  0x0000001c  unsigned int
608
    #11             36  0x00000024  unsigned long
609
    #14              0  0x00000000  void
610
    #15             24  0x00000018  int
611
    #19             32  0x00000020  long
612
    #20             40  0x00000028  float
613
    #21             44  0x0000002c  double
614
    #22             12  0x0000000c  unsigned char
615
    #23             20  0x00000014  unsigned short
616
    #24             28  0x0000001c  unsigned int
617
    #25             36  0x00000024  unsigned long
618
    #26             48  0x00000030  struct no name { ifd = -1, index = 1048575 }
619
*/
620

621
/* Redefinition of storage classes as an enumeration for better
622
   debugging.  */
623
624
typedef enum sc {
625
  sc_Nil   = scNil,   /* no storage class */
626
  sc_Text  = scText,    /* text symbol */
627
  sc_Data  = scData,    /* initialized data symbol */
628
  sc_Bss   = scBss,   /* un-initialized data symbol */
629
  sc_Register  = scRegister,    /* value of symbol is register number */
630
  sc_Abs   = scAbs,   /* value of symbol is absolute */
631
  sc_Undefined   = scUndefined,   /* who knows? */
632
  sc_CdbLocal  = scCdbLocal,    /* variable's value is IN se->va.?? */
633
  sc_Bits  = scBits,    /* this is a bit field */
634
  sc_CdbSystem   = scCdbSystem,   /* value is IN CDB's address space */
635
  sc_RegImage  = scRegImage,    /* register value saved on stack */
636
  sc_Info  = scInfo,    /* symbol contains debugger information */
637
  sc_UserStruct  = scUserStruct,  /* addr in struct user for current process */
638
  sc_SData   = scSData,   /* load time only small data */
639
  sc_SBss  = scSBss,    /* load time only small common */
640
  sc_RData   = scRData,   /* load time only read only data */
641
  sc_Var   = scVar,   /* Var parameter (fortran,pascal) */
642
  sc_Common  = scCommon,    /* common variable */
643
  sc_SCommon   = scSCommon,   /* small common */
644
  sc_VarRegister = scVarRegister, /* Var parameter in a register */
645
  sc_Variant   = scVariant,   /* Variant record */
646
  sc_SUndefined  = scSUndefined,  /* small undefined(external) data */
647
  sc_Init  = scInit,    /* .init section symbol */
648
  sc_Max   = scMax    /* Max storage class+1 */
649
} sc_t;
650
651
/* Redefinition of symbol type.  */
652
653
typedef enum st {
654
  st_Nil  = stNil,  /* Nuthin' special */
655
  st_Global = stGlobal, /* external symbol */
656
  st_Static = stStatic, /* static */
657
  st_Param  = stParam,  /* procedure argument */
658
  st_Local  = stLocal,  /* local variable */
659
  st_Label  = stLabel,  /* label */
660
  st_Proc = stProc, /*     "      "  Procedure */
661
  st_Block  = stBlock,  /* beginning of block */
662
  st_End  = stEnd,  /* end (of anything) */
663
  st_Member = stMember, /* member (of anything  - struct/union/enum */
664
  st_Typedef  = stTypedef,  /* type definition */
665
  st_File = stFile, /* file name */
666
  st_RegReloc = stRegReloc, /* register relocation */
667
  st_Forward  = stForward,  /* forwarding address */
668
  st_StaticProc = stStaticProc, /* load time only static procs */
669
  st_Constant = stConstant, /* const */
670
  st_Str  = stStr,  /* string */
671
  st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
672
  st_Expr = stExpr, /* 2+2 vs. 4 */
673
  st_Type = stType, /* post-coercion SER */
674
  st_Max  = stMax   /* max type+1 */
675
} st_t;
676
677
/* Redefinition of type qualifiers.  */
678
679
typedef enum tq {
680
  tq_Nil  = tqNil,  /* bt is what you see */
681
  tq_Ptr  = tqPtr,  /* pointer */
682
  tq_Proc = tqProc, /* procedure */
683
  tq_Array  = tqArray,  /* duh */
684
  tq_Far  = tqFar,  /* longer addressing - 8086/8 land */
685
  tq_Vol  = tqVol,  /* volatile */
686
  tq_Max  = tqMax   /* Max type qualifier+1 */
687
} tq_t;
688
689
/* Redefinition of basic types.  */
690
691
typedef enum bt {
692
  bt_Nil  = btNil,  /* undefined */
693
  bt_Adr  = btAdr,  /* address - integer same size as pointer */
694
  bt_Char = btChar, /* character */
695
  bt_UChar  = btUChar,  /* unsigned character */
696
  bt_Short  = btShort,  /* short */
697
  bt_UShort = btUShort, /* unsigned short */
698
  bt_Int  = btInt,  /* int */
699
  bt_UInt = btUInt, /* unsigned int */
700
  bt_Long = btLong, /* long */
701
  bt_ULong  = btULong,  /* unsigned long */
702
  bt_Float  = btFloat,  /* float (real) */
703
  bt_Double = btDouble, /* Double (real) */
704
  bt_Struct = btStruct, /* Structure (Record) */
705
  bt_Union  = btUnion,  /* Union (variant) */
706
  bt_Enum = btEnum, /* Enumerated */
707
  bt_Typedef  = btTypedef,  /* defined via a typedef, isymRef points */
708
  bt_Range  = btRange,  /* subrange of int */
709
  bt_Set  = btSet,  /* pascal sets */
710
  bt_Complex  = btComplex,  /* fortran complex */
711
  bt_DComplex = btDComplex, /* fortran double complex */
712
  bt_Indirect = btIndirect, /* forward or unnamed typedef */
713
  bt_FixedDec = btFixedDec, /* Fixed Decimal */
714
  bt_FloatDec = btFloatDec, /* Float Decimal */
715
  bt_String = btString, /* Varying Length Character String */
716
  bt_Bit  = btBit,  /* Aligned Bit String */
717
  bt_Picture  = btPicture,  /* Picture */
718
  bt_Void = btVoid, /* Void */
719
  bt_Max  = btMax   /* Max basic type+1 */
720
} bt_t;
721
722
#define N_TQ itqMax
723
724
/* States for whether to hash type or not.  */
725
typedef enum hash_state {
726
  hash_no = 0,    /* Don't hash type */
727
  hash_yes  = 1,    /* OK to hash type, or use previous hash */
728
  hash_record = 2   /* OK to record hash, but don't use prev.  */
729
} hash_state_t;
730
731
/* Types of different sized allocation requests.  */
732
enum alloc_type {
733
  alloc_type_none,    /* dummy value */
734
  alloc_type_scope,   /* nested scopes linked list */
735
  alloc_type_vlinks,    /* glue linking pages in varray */
736
  alloc_type_shash,   /* string hash element */
737
  alloc_type_thash,   /* type hash element */
738
  alloc_type_tag,   /* struct/union/tag element */
739
  alloc_type_forward,   /* element to hold unknown tag */
740
  alloc_type_thead,   /* head of type hash list */
741
  alloc_type_varray,    /* general varray allocation */
742
  alloc_type_lineno,    /* line number list */
743
  alloc_type_last   /* last+1 element for array bounds */
744
};
745
746
/* Types of auxiliary type information.  */
747
enum aux_type {
748
  aux_tir,      /* TIR type information */
749
  aux_rndx,     /* relative index into symbol table */
750
  aux_dnLow,      /* low dimension */
751
  aux_dnHigh,     /* high dimension */
752
  aux_isym,     /* symbol table index (end of proc) */
753
  aux_iss,      /* index into string space (not used) */
754
  aux_width,      /* width for non-default sized struc fields */
755
  aux_count     /* count of ranges for variant arm */
756
};
757

758
/* Structures to provide n-number of virtual arrays, each of which can
759
   grow linearly, and which are written in the object file as
760
   sequential pages.  On systems with a BSD malloc, the
761
   MAX_CLUSTER_PAGES should be 1 less than a power of two, since
762
   malloc adds it's overhead, and rounds up to the next power of 2.
763
   Pages are linked together via a linked list.
764
765
   If PAGE_SIZE is > 4096, the string length in the shash_t structure
766
   can't be represented (assuming there are strings > 4096 bytes).  */
767
768
/* FIXME: Yes, there can be such strings while emitting C++ class debug
769
   info.  Templates are the offender here, the test case in question
770
   having a mangled class name of
771
772
     t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\
773
     2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey
774
775
   Repeat that a couple dozen times while listing the class members and
776
   you've got strings over 4k.  Hack around this for now by increasing
777
   the page size.  A proper solution would abandon this structure scheme
778
   certainly for very large strings, and possibly entirely.  */
779
780
#ifndef PAGE_SIZE
781
#define PAGE_SIZE (8*1024)  /* size of varray pages */
782
#endif
783
784
#define PAGE_USIZE ((unsigned long) PAGE_SIZE)
785
786
#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
787
#define MAX_CLUSTER_PAGES 63
788
#endif
789
790
/* Linked list connecting separate page allocations.  */
791
typedef struct vlinks {
792
  struct vlinks *prev;    /* previous set of pages */
793
  struct vlinks *next;    /* next set of pages */
794
  union  page   *datum;   /* start of page */
795
  unsigned long  start_index; /* starting index # of page */
796
} vlinks_t;
797
798
/* Virtual array header.  */
799
typedef struct varray {
800
  vlinks_t  *first;     /* first page link */
801
  vlinks_t  *last;      /* last page link */
802
  unsigned long  num_allocated;   /* # objects allocated */
803
  unsigned short object_size;   /* size in bytes of each object */
804
  unsigned short objects_per_page;  /* # objects that can fit on a page */
805
  unsigned short objects_last_page; /* # objects allocated on last page */
806
} varray_t;
807
808
#ifndef MALLOC_CHECK
809
#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
810
#else
811
#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
812
#endif
813
814
#define INIT_VARRAY(type) { /* macro to initialize a varray */  \
815
  (vlinks_t *)0,    /* first */       \
816
  (vlinks_t *)0,    /* last */        \
817
  0,        /* num_allocated */     \
818
  sizeof (type),    /* object_size */     \
819
  OBJECTS_PER_PAGE (type),  /* objects_per_page */      \
820
  OBJECTS_PER_PAGE (type),  /* objects_last_page */     \
821
}
822
823
/* Master type for indexes within the symbol table.  */
824
typedef unsigned long symint_t;
825
826
/* Linked list support for nested scopes (file, block, structure, etc.).  */
827
typedef struct scope {
828
  struct scope  *prev;    /* previous scope level */
829
  struct scope  *free;    /* free list pointer */
830
  struct localsym *lsym;  /* pointer to local symbol node */
831
  st_t     type;    /* type of the node */
832
} scope_t;
833
834
/* For a local symbol we store a gas symbol as well as the debugging
835
   information we generate.  The gas symbol will be NULL if this is
836
   only a debugging symbol.  */
837
typedef struct localsym {
838
  const char *name;   /* symbol name */
839
  symbolS *as_sym;    /* symbol as seen by gas */
840
  bfd_vma addend;   /* addend to as_sym value */
841
  struct efdr *file_ptr;  /* file pointer */
842
  struct ecoff_proc *proc_ptr;  /* proc pointer */
843
  struct localsym *begin_ptr; /* symbol at start of block */
844
  struct ecoff_aux *index_ptr;  /* index value to be filled in */
845
  struct forward *forward_ref;  /* forward references to this symbol */
846
  long sym_index;   /* final symbol index */
847
  EXTR ecoff_sym;   /* ECOFF debugging symbol */
848
} localsym_t;
849
850
/* For aux information we keep the type and the data.  */
851
typedef struct ecoff_aux {
852
  enum aux_type type;   /* aux type */
853
  AUXU data;      /* aux data */
854
} aux_t;
855
856
/* For a procedure we store the gas symbol as well as the PDR
857
   debugging information.  */
858
typedef struct ecoff_proc {
859
  localsym_t *sym;    /* associated symbol */
860
  PDR pdr;      /* ECOFF debugging info */
861
} proc_t;
862
863
/* Number of proc_t structures allocated.  */
864
static unsigned long proc_cnt;
865
866
/* Forward reference list for tags referenced, but not yet defined.  */
867
typedef struct forward {
868
  struct forward *next;   /* next forward reference */
869
  struct forward *free;   /* free list pointer */
870
  aux_t    *ifd_ptr;  /* pointer to store file index */
871
  aux_t    *index_ptr;  /* pointer to store symbol index */
872
} forward_t;
873
874
/* Linked list support for tags.  The first tag in the list is always
875
   the current tag for that block.  */
876
typedef struct tag {
877
  struct tag   *free;   /* free list pointer */
878
  struct shash   *hash_ptr; /* pointer to the hash table head */
879
  struct tag   *same_name;  /* tag with same name in outer scope */
880
  struct tag   *same_block; /* next tag defined in the same block.  */
881
  struct forward *forward_ref;  /* list of forward references */
882
  bt_t      basic_type; /* bt_Struct, bt_Union, or bt_Enum */
883
  symint_t    ifd;    /* file # tag defined in */
884
  localsym_t   *sym;    /* file's local symbols */
885
} tag_t;
886
887
/* Head of a block's linked list of tags.  */
888
typedef struct thead {
889
  struct thead  *prev;    /* previous block */
890
  struct thead  *free;    /* free list pointer */
891
  struct tag  *first_tag; /* first tag in block defined */
892
} thead_t;
893
894
/* Union containing pointers to each the small structures which are freed up.  */
895
typedef union small_free {
896
  scope_t *f_scope; /* scope structure */
897
  thead_t *f_thead; /* tag head structure */
898
  tag_t   *f_tag;   /* tag element structure */
899
  forward_t *f_forward; /* forward tag reference */
900
} small_free_t;
901
902
/* String hash table entry.  */
903
904
typedef struct shash {
905
  char    *string;  /* string we are hashing */
906
  symint_t   indx;    /* index within string table */
907
  EXTR    *esym_ptr;  /* global symbol pointer */
908
  localsym_t  *sym_ptr; /* local symbol pointer */
909
  localsym_t  *end_ptr; /* symbol pointer to end block */
910
  tag_t   *tag_ptr; /* tag pointer */
911
  proc_t  *proc_ptr;  /* procedure descriptor pointer */
912
} shash_t;
913
914
/* Type hash table support.  The size of the hash table must fit
915
   within a page with the other extended file descriptor information.
916
   Because unique types which are hashed are fewer in number than
917
   strings, we use a smaller hash value.  */
918
919
#define HASHBITS 30
920
921
#ifndef THASH_SIZE
922
#define THASH_SIZE 113
923
#endif
924
925
typedef struct thash {
926
  struct thash  *next;    /* next hash value */
927
  AUXU     type;    /* type we are hashing */
928
  symint_t   indx;    /* index within string table */
929
} thash_t;
930
931
/* Extended file descriptor that contains all of the support necessary
932
   to add things to each file separately.  */
933
typedef struct efdr {
934
  FDR    fdr;   /* File header to be written out */
935
  FDR   *orig_fdr;  /* original file header */
936
  char    *name;    /* filename */
937
  int    fake;    /* whether this is faked .file */
938
  symint_t   void_type; /* aux. pointer to 'void' type */
939
  symint_t   int_type;  /* aux. pointer to 'int' type */
940
  scope_t *cur_scope; /* current nested scopes */
941
  symint_t   file_index;  /* current file number */
942
  int    nested_scopes; /* # nested scopes */
943
  varray_t   strings; /* local strings */
944
  varray_t   symbols; /* local symbols */
945
  varray_t   procs;   /* procedures */
946
  varray_t   aux_syms;  /* auxiliary symbols */
947
  struct efdr *next_file; /* next file descriptor */
948
        /* string/type hash tables */
949
  htab_t  str_hash; /* string hash table */
950
  thash_t *thash_head[THASH_SIZE];
951
} efdr_t;
952
953
/* Pre-initialized extended file structure.  */
954
static const efdr_t init_file = {
955
  {     /* FDR structure */
956
    0,      /* adr:   memory address of beginning of file */
957
    0,      /* rss:   file name (of source, if known) */
958
    0,      /* issBase: file's string space */
959
    0,      /* cbSs:  number of bytes in the ss */
960
    0,      /* isymBase:  beginning of symbols */
961
    0,      /* csym:  count file's of symbols */
962
    0,      /* ilineBase: file's line symbols */
963
    0,      /* cline: count of file's line symbols */
964
    0,      /* ioptBase:  file's optimization entries */
965
    0,      /* copt:  count of file's optimization entries */
966
    0,      /* ipdFirst:  start of procedures for this file */
967
    0,      /* cpd:   count of procedures for this file */
968
    0,      /* iauxBase:  file's auxiliary entries */
969
    0,      /* caux:  count of file's auxiliary entries */
970
    0,      /* rfdBase: index into the file indirect table */
971
    0,      /* crfd:  count file indirect entries */
972
    langC,    /* lang:  language for this file */
973
    1,      /* fMerge:  whether this file can be merged */
974
    0,      /* fReadin: true if read in (not just created) */
975
    TARGET_BYTES_BIG_ENDIAN,  /* fBigendian:  if 1, compiled on big endian machine */
976
    GLEVEL_2,   /* glevel:  level this file was compiled with */
977
    0,      /* reserved:  reserved for future use */
978
    0,      /* cbLineOffset: byte offset from header for this file ln's */
979
    0,      /* cbLine:  size of lines for this file */
980
  },
981
982
  (FDR *)0,   /* orig_fdr:  original file header pointer */
983
  (char *)0,    /* name:  pointer to filename */
984
  0,      /* fake:  whether this is a faked .file */
985
  0,      /* void_type: ptr to aux node for void type */
986
  0,      /* int_type:  ptr to aux node for int type */
987
  (scope_t *)0,   /* cur_scope: current scope being processed */
988
  0,      /* file_index:  current file # */
989
  0,      /* nested_scopes: # nested scopes */
990
  INIT_VARRAY (char), /* strings: local string varray */
991
  INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
992
  INIT_VARRAY (proc_t), /* procs: procedure varray */
993
  INIT_VARRAY (aux_t),  /* aux_syms:  auxiliary symbols varray */
994
995
  (struct efdr *)0, /* next_file: next file structure */
996
997
  (htab_t)0,    /* str_hash:  string hash table */
998
  { 0 },    /* thash_head:  type hash table */
999
};
1000
1001
static efdr_t *first_file;      /* first file descriptor */
1002
static efdr_t **last_file_ptr = &first_file;  /* file descriptor tail */
1003
1004
/* Line number information is kept in a list until the assembly is
1005
   finished.  */
1006
typedef struct lineno_list {
1007
  struct lineno_list *next; /* next element in list */
1008
  efdr_t *file;     /* file this line is in */
1009
  proc_t *proc;     /* procedure this line is in */
1010
  fragS *frag;      /* fragment this line number is in */
1011
  unsigned long paddr;    /* offset within fragment */
1012
  long lineno;      /* actual line number */
1013
} lineno_list_t;
1014
1015
static lineno_list_t *first_lineno;
1016
static lineno_list_t *last_lineno;
1017
static lineno_list_t **last_lineno_ptr = &first_lineno;
1018
1019
/* Sometimes there will be some .loc statements before a .ent.  We
1020
   keep them in this list so that we can fill in the procedure pointer
1021
   after we see the .ent.  */
1022
static lineno_list_t *noproc_lineno;
1023
1024
/* Union of various things that are held in pages.  */
1025
typedef union page {
1026
  char    byte  [ PAGE_SIZE ];
1027
  unsigned char ubyte [ PAGE_SIZE ];
1028
  efdr_t  file  [ PAGE_SIZE / sizeof (efdr_t)      ];
1029
  FDR   ofile [ PAGE_SIZE / sizeof (FDR)       ];
1030
  proc_t  proc  [ PAGE_SIZE / sizeof (proc_t)      ];
1031
  localsym_t  sym [ PAGE_SIZE / sizeof (localsym_t)    ];
1032
  aux_t   aux [ PAGE_SIZE / sizeof (aux_t)       ];
1033
  DNR   dense [ PAGE_SIZE / sizeof (DNR)       ];
1034
  scope_t scope [ PAGE_SIZE / sizeof (scope_t)       ];
1035
  vlinks_t  vlinks  [ PAGE_SIZE / sizeof (vlinks_t)      ];
1036
  shash_t shash [ PAGE_SIZE / sizeof (shash_t)       ];
1037
  thash_t thash [ PAGE_SIZE / sizeof (thash_t)       ];
1038
  tag_t   tag [ PAGE_SIZE / sizeof (tag_t)       ];
1039
  forward_t forward [ PAGE_SIZE / sizeof (forward_t)     ];
1040
  thead_t thead [ PAGE_SIZE / sizeof (thead_t)       ];
1041
  lineno_list_t lineno  [ PAGE_SIZE / sizeof (lineno_list_t) ];
1042
} page_type;
1043
1044
/* Structure holding allocation information for small sized structures.  */
1045
typedef struct alloc_info {
1046
  char    *alloc_name;  /* name of this allocation type (must be first) */
1047
  page_type *cur_page;  /* current page being allocated from */
1048
  small_free_t   free_list; /* current free list if any */
1049
  int    unallocated; /* number of elements unallocated on page */
1050
  int    total_alloc; /* total number of allocations */
1051
  int    total_free;  /* total number of frees */
1052
  int    total_pages; /* total number of pages allocated */
1053
} alloc_info_t;
1054
1055
/* Type information collected together.  */
1056
typedef struct type_info {
1057
  bt_t        basic_type;   /* basic type */
1058
  int       orig_type;    /* original COFF-based type */
1059
  int       num_tq;     /* # type qualifiers */
1060
  int       num_dims;     /* # dimensions */
1061
  int       num_sizes;    /* # sizes */
1062
  int       extra_sizes;    /* # extra sizes not tied with dims */
1063
  tag_t *     tag_ptr;      /* tag pointer */
1064
  int       bitfield;     /* symbol is a bitfield */
1065
  tq_t        type_qualifiers[N_TQ];  /* type qualifiers (ptr, func, array)*/
1066
  symint_t    dimensions     [N_TQ];  /* dimensions for each array */
1067
  symint_t    sizes      [N_TQ+2];  /* sizes of each array slice + size of
1068
             struct/union/enum + bitfield size */
1069
} type_info_t;
1070
1071
/* Pre-initialized type_info struct.  */
1072
static const type_info_t type_info_init = {
1073
  bt_Nil,       /* basic type */
1074
  T_NULL,       /* original COFF-based type */
1075
  0,          /* # type qualifiers */
1076
  0,          /* # dimensions */
1077
  0,          /* # sizes */
1078
  0,          /* sizes not tied with dims */
1079
  NULL,         /* ptr to tag */
1080
  0,          /* bitfield */
1081
  {         /* type qualifiers */
1082
    tq_Nil,
1083
    tq_Nil,
1084
    tq_Nil,
1085
    tq_Nil,
1086
    tq_Nil,
1087
    tq_Nil,
1088
  },
1089
  {         /* dimensions */
1090
    0,
1091
    0,
1092
    0,
1093
    0,
1094
    0,
1095
    0
1096
  },
1097
  {         /* sizes */
1098
    0,
1099
    0,
1100
    0,
1101
    0,
1102
    0,
1103
    0,
1104
    0,
1105
    0,
1106
  },
1107
};
1108
1109
/* Global hash table for the tags table and global table for file
1110
   descriptors.  */
1111
1112
static varray_t file_desc = INIT_VARRAY (efdr_t);
1113
1114
static htab_t tag_hash;
1115
1116
/* Static types for int and void.  Also, remember the last function's
1117
   type (which is set up when we encounter the declaration for the
1118
   function, and used when the end block for the function is emitted.  */
1119
1120
static type_info_t int_type_info;
1121
static type_info_t void_type_info;
1122
static type_info_t last_func_type_info;
1123
static symbolS *last_func_sym_value;
1124
1125
/* Convert COFF basic type to ECOFF basic type.  The T_NULL type
1126
   really should use bt_Void, but this causes the current ecoff GDB to
1127
   issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1128
   2.0) doesn't understand it, even though the compiler generates it.
1129
   Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1130
   suite, but for now go with what works.
1131
1132
   It would make sense for the .type and .scl directives to use the
1133
   ECOFF numbers directly, rather than using the COFF numbers and
1134
   mapping them.  Unfortunately, this is historically what mips-tfile
1135
   expects, and changing gcc now would be a considerable pain (the
1136
   native compiler generates debugging information internally, rather
1137
   than via the assembler, so it will never use .type or .scl).  */
1138
1139
static const bt_t map_coff_types[] = {
1140
  bt_Nil,     /* T_NULL */
1141
  bt_Nil,     /* T_ARG */
1142
  bt_Char,      /* T_CHAR */
1143
  bt_Short,     /* T_SHORT */
1144
  bt_Int,     /* T_INT */
1145
  bt_Long,      /* T_LONG */
1146
  bt_Float,     /* T_FLOAT */
1147
  bt_Double,      /* T_DOUBLE */
1148
  bt_Struct,      /* T_STRUCT */
1149
  bt_Union,     /* T_UNION */
1150
  bt_Enum,      /* T_ENUM */
1151
  bt_Enum,      /* T_MOE */
1152
  bt_UChar,     /* T_UCHAR */
1153
  bt_UShort,      /* T_USHORT */
1154
  bt_UInt,      /* T_UINT */
1155
  bt_ULong      /* T_ULONG */
1156
};
1157
1158
/* Convert COFF storage class to ECOFF storage class.  */
1159
static const sc_t map_coff_storage[] = {
1160
  sc_Nil,     /*   0: C_NULL */
1161
  sc_Abs,     /*   1: C_AUTO    auto var */
1162
  sc_Undefined,     /*   2: C_EXT   external */
1163
  sc_Data,      /*   3: C_STAT    static */
1164
  sc_Register,      /*   4: C_REG   register */
1165
  sc_Undefined,     /*   5: C_EXTDEF  ??? */
1166
  sc_Text,      /*   6: C_LABEL   label */
1167
  sc_Text,      /*   7: C_ULABEL  user label */
1168
  sc_Info,      /*   8: C_MOS   member of struct */
1169
  sc_Abs,     /*   9: C_ARG   argument */
1170
  sc_Info,      /*  10: C_STRTAG  struct tag */
1171
  sc_Info,      /*  11: C_MOU   member of union */
1172
  sc_Info,      /*  12: C_UNTAG   union tag */
1173
  sc_Info,      /*  13: C_TPDEF   typedef */
1174
  sc_Data,      /*  14: C_USTATIC ??? */
1175
  sc_Info,      /*  15: C_ENTAG   enum tag */
1176
  sc_Info,      /*  16: C_MOE   member of enum */
1177
  sc_Register,      /*  17: C_REGPARM register parameter */
1178
  sc_Bits,      /*  18; C_FIELD   bitfield */
1179
  sc_Nil,     /*  19 */
1180
  sc_Nil,     /*  20 */
1181
  sc_Nil,     /*  21 */
1182
  sc_Nil,     /*  22 */
1183
  sc_Nil,     /*  23 */
1184
  sc_Nil,     /*  24 */
1185
  sc_Nil,     /*  25 */
1186
  sc_Nil,     /*  26 */
1187
  sc_Nil,     /*  27 */
1188
  sc_Nil,     /*  28 */
1189
  sc_Nil,     /*  29 */
1190
  sc_Nil,     /*  30 */
1191
  sc_Nil,     /*  31 */
1192
  sc_Nil,     /*  32 */
1193
  sc_Nil,     /*  33 */
1194
  sc_Nil,     /*  34 */
1195
  sc_Nil,     /*  35 */
1196
  sc_Nil,     /*  36 */
1197
  sc_Nil,     /*  37 */
1198
  sc_Nil,     /*  38 */
1199
  sc_Nil,     /*  39 */
1200
  sc_Nil,     /*  40 */
1201
  sc_Nil,     /*  41 */
1202
  sc_Nil,     /*  42 */
1203
  sc_Nil,     /*  43 */
1204
  sc_Nil,     /*  44 */
1205
  sc_Nil,     /*  45 */
1206
  sc_Nil,     /*  46 */
1207
  sc_Nil,     /*  47 */
1208
  sc_Nil,     /*  48 */
1209
  sc_Nil,     /*  49 */
1210
  sc_Nil,     /*  50 */
1211
  sc_Nil,     /*  51 */
1212
  sc_Nil,     /*  52 */
1213
  sc_Nil,     /*  53 */
1214
  sc_Nil,     /*  54 */
1215
  sc_Nil,     /*  55 */
1216
  sc_Nil,     /*  56 */
1217
  sc_Nil,     /*  57 */
1218
  sc_Nil,     /*  58 */
1219
  sc_Nil,     /*  59 */
1220
  sc_Nil,     /*  60 */
1221
  sc_Nil,     /*  61 */
1222
  sc_Nil,     /*  62 */
1223
  sc_Nil,     /*  63 */
1224
  sc_Nil,     /*  64 */
1225
  sc_Nil,     /*  65 */
1226
  sc_Nil,     /*  66 */
1227
  sc_Nil,     /*  67 */
1228
  sc_Nil,     /*  68 */
1229
  sc_Nil,     /*  69 */
1230
  sc_Nil,     /*  70 */
1231
  sc_Nil,     /*  71 */
1232
  sc_Nil,     /*  72 */
1233
  sc_Nil,     /*  73 */
1234
  sc_Nil,     /*  74 */
1235
  sc_Nil,     /*  75 */
1236
  sc_Nil,     /*  76 */
1237
  sc_Nil,     /*  77 */
1238
  sc_Nil,     /*  78 */
1239
  sc_Nil,     /*  79 */
1240
  sc_Nil,     /*  80 */
1241
  sc_Nil,     /*  81 */
1242
  sc_Nil,     /*  82 */
1243
  sc_Nil,     /*  83 */
1244
  sc_Nil,     /*  84 */
1245
  sc_Nil,     /*  85 */
1246
  sc_Nil,     /*  86 */
1247
  sc_Nil,     /*  87 */
1248
  sc_Nil,     /*  88 */
1249
  sc_Nil,     /*  89 */
1250
  sc_Nil,     /*  90 */
1251
  sc_Nil,     /*  91 */
1252
  sc_Nil,     /*  92 */
1253
  sc_Nil,     /*  93 */
1254
  sc_Nil,     /*  94 */
1255
  sc_Nil,     /*  95 */
1256
  sc_Nil,     /*  96 */
1257
  sc_Nil,     /*  97 */
1258
  sc_Nil,     /*  98 */
1259
  sc_Nil,     /*  99 */
1260
  sc_Text,      /* 100: C_BLOCK  block start/end */
1261
  sc_Text,      /* 101: C_FCN  function start/end */
1262
  sc_Info,      /* 102: C_EOS  end of struct/union/enum */
1263
  sc_Nil,     /* 103: C_FILE   file start */
1264
  sc_Nil,     /* 104: C_LINE   line number */
1265
  sc_Nil,     /* 105: C_ALIAS  combined type info */
1266
  sc_Nil,     /* 106: C_HIDDEN ??? */
1267
};
1268
1269
/* Convert COFF storage class to ECOFF symbol type.  */
1270
static const st_t map_coff_sym_type[] = {
1271
  st_Nil,     /*   0: C_NULL */
1272
  st_Local,     /*   1: C_AUTO    auto var */
1273
  st_Global,      /*   2: C_EXT   external */
1274
  st_Static,      /*   3: C_STAT    static */
1275
  st_Local,     /*   4: C_REG   register */
1276
  st_Global,      /*   5: C_EXTDEF  ??? */
1277
  st_Label,     /*   6: C_LABEL   label */
1278
  st_Label,     /*   7: C_ULABEL  user label */
1279
  st_Member,      /*   8: C_MOS   member of struct */
1280
  st_Param,     /*   9: C_ARG   argument */
1281
  st_Block,     /*  10: C_STRTAG  struct tag */
1282
  st_Member,      /*  11: C_MOU   member of union */
1283
  st_Block,     /*  12: C_UNTAG   union tag */
1284
  st_Typedef,     /*  13: C_TPDEF   typedef */
1285
  st_Static,      /*  14: C_USTATIC ??? */
1286
  st_Block,     /*  15: C_ENTAG   enum tag */
1287
  st_Member,      /*  16: C_MOE   member of enum */
1288
  st_Param,     /*  17: C_REGPARM register parameter */
1289
  st_Member,      /*  18; C_FIELD   bitfield */
1290
  st_Nil,     /*  19 */
1291
  st_Nil,     /*  20 */
1292
  st_Nil,     /*  21 */
1293
  st_Nil,     /*  22 */
1294
  st_Nil,     /*  23 */
1295
  st_Nil,     /*  24 */
1296
  st_Nil,     /*  25 */
1297
  st_Nil,     /*  26 */
1298
  st_Nil,     /*  27 */
1299
  st_Nil,     /*  28 */
1300
  st_Nil,     /*  29 */
1301
  st_Nil,     /*  30 */
1302
  st_Nil,     /*  31 */
1303
  st_Nil,     /*  32 */
1304
  st_Nil,     /*  33 */
1305
  st_Nil,     /*  34 */
1306
  st_Nil,     /*  35 */
1307
  st_Nil,     /*  36 */
1308
  st_Nil,     /*  37 */
1309
  st_Nil,     /*  38 */
1310
  st_Nil,     /*  39 */
1311
  st_Nil,     /*  40 */
1312
  st_Nil,     /*  41 */
1313
  st_Nil,     /*  42 */
1314
  st_Nil,     /*  43 */
1315
  st_Nil,     /*  44 */
1316
  st_Nil,     /*  45 */
1317
  st_Nil,     /*  46 */
1318
  st_Nil,     /*  47 */
1319
  st_Nil,     /*  48 */
1320
  st_Nil,     /*  49 */
1321
  st_Nil,     /*  50 */
1322
  st_Nil,     /*  51 */
1323
  st_Nil,     /*  52 */
1324
  st_Nil,     /*  53 */
1325
  st_Nil,     /*  54 */
1326
  st_Nil,     /*  55 */
1327
  st_Nil,     /*  56 */
1328
  st_Nil,     /*  57 */
1329
  st_Nil,     /*  58 */
1330
  st_Nil,     /*  59 */
1331
  st_Nil,     /*  60 */
1332
  st_Nil,     /*  61 */
1333
  st_Nil,     /*  62 */
1334
  st_Nil,     /*  63 */
1335
  st_Nil,     /*  64 */
1336
  st_Nil,     /*  65 */
1337
  st_Nil,     /*  66 */
1338
  st_Nil,     /*  67 */
1339
  st_Nil,     /*  68 */
1340
  st_Nil,     /*  69 */
1341
  st_Nil,     /*  70 */
1342
  st_Nil,     /*  71 */
1343
  st_Nil,     /*  72 */
1344
  st_Nil,     /*  73 */
1345
  st_Nil,     /*  74 */
1346
  st_Nil,     /*  75 */
1347
  st_Nil,     /*  76 */
1348
  st_Nil,     /*  77 */
1349
  st_Nil,     /*  78 */
1350
  st_Nil,     /*  79 */
1351
  st_Nil,     /*  80 */
1352
  st_Nil,     /*  81 */
1353
  st_Nil,     /*  82 */
1354
  st_Nil,     /*  83 */
1355
  st_Nil,     /*  84 */
1356
  st_Nil,     /*  85 */
1357
  st_Nil,     /*  86 */
1358
  st_Nil,     /*  87 */
1359
  st_Nil,     /*  88 */
1360
  st_Nil,     /*  89 */
1361
  st_Nil,     /*  90 */
1362
  st_Nil,     /*  91 */
1363
  st_Nil,     /*  92 */
1364
  st_Nil,     /*  93 */
1365
  st_Nil,     /*  94 */
1366
  st_Nil,     /*  95 */
1367
  st_Nil,     /*  96 */
1368
  st_Nil,     /*  97 */
1369
  st_Nil,     /*  98 */
1370
  st_Nil,     /*  99 */
1371
  st_Block,     /* 100: C_BLOCK  block start/end */
1372
  st_Proc,      /* 101: C_FCN  function start/end */
1373
  st_End,     /* 102: C_EOS  end of struct/union/enum */
1374
  st_File,      /* 103: C_FILE   file start */
1375
  st_Nil,     /* 104: C_LINE   line number */
1376
  st_Nil,     /* 105: C_ALIAS  combined type info */
1377
  st_Nil,     /* 106: C_HIDDEN ??? */
1378
};
1379
1380
/* Keep track of different sized allocation requests.  */
1381
static alloc_info_t alloc_counts[(int) alloc_type_last];
1382

1383
/* Record whether we have seen any debugging information.  */
1384
int ecoff_debugging_seen = 0;
1385
1386
/* Various statics.  */
1387
static efdr_t  *cur_file_ptr  = (efdr_t *) 0; /* current file desc. header */
1388
static proc_t  *cur_proc_ptr  = (proc_t *) 0; /* current procedure header */
1389
static proc_t  *first_proc_ptr  = (proc_t *) 0; /* first procedure header */
1390
static thead_t *top_tag_head  = (thead_t *) 0; /* top level tag head */
1391
static thead_t *cur_tag_head  = (thead_t *) 0; /* current tag head */
1392
#ifdef ECOFF_DEBUG
1393
static int  debug   = 0;    /* trace functions */
1394
#endif
1395
static int  stabs_seen  = 0;    /* != 0 if stabs have been seen */
1396
1397
static int current_file_idx;
1398
static const char *current_stabs_filename;
1399
1400
/* Pseudo symbol to use when putting stabs into the symbol table.  */
1401
#ifndef STABS_SYMBOL
1402
#define STABS_SYMBOL "@stabs"
1403
#endif
1404
1405
static char stabs_symbol[] = STABS_SYMBOL;
1406

1407
/* Prototypes for functions defined in this file.  */
1408
1409
static void add_varray_page (varray_t *vp);
1410
static symint_t add_string (varray_t *vp,
1411
          htab_t hash_tbl,
1412
          const char *str,
1413
          shash_t **ret_hash);
1414
static localsym_t *add_ecoff_symbol (const char *str, st_t type,
1415
             sc_t storage, symbolS *sym,
1416
             bfd_vma addend, symint_t value,
1417
             symint_t indx);
1418
static symint_t add_aux_sym_symint (symint_t aux_word);
1419
static symint_t add_aux_sym_rndx (int file_index, symint_t sym_index);
1420
static symint_t add_aux_sym_tir (type_info_t *t,
1421
         hash_state_t state,
1422
         thash_t **hash_tbl);
1423
static tag_t *get_tag (const char *tag, localsym_t *sym, bt_t basic_type);
1424
static void add_unknown_tag (tag_t *ptag);
1425
static void add_procedure (char *func, int aent);
1426
static void add_file (const char *file_name, int indx, int fake);
1427
#ifdef ECOFF_DEBUG
1428
static char *sc_to_string (sc_t storage_class);
1429
static char *st_to_string (st_t symbol_type);
1430
#endif
1431
static void mark_stabs (int);
1432
static char *ecoff_add_bytes (char **buf, char **bufend,
1433
            char *bufptr, unsigned long need);
1434
static unsigned long ecoff_padding_adjust
1435
  (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1436
   unsigned long offset, char **bufptrptr);
1437
static unsigned long ecoff_build_lineno
1438
  (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1439
   unsigned long offset, long *linecntptr);
1440
static unsigned long ecoff_build_symbols
1441
  (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1442
   unsigned long offset);
1443
static unsigned long ecoff_build_procs
1444
  (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1445
   unsigned long offset);
1446
static unsigned long ecoff_build_aux
1447
  (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1448
   unsigned long offset);
1449
static unsigned long ecoff_build_strings (char **buf, char **bufend,
1450
            unsigned long offset,
1451
            varray_t *vp);
1452
static unsigned long ecoff_build_ss
1453
  (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1454
   unsigned long offset);
1455
static unsigned long ecoff_build_fdr
1456
  (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1457
   unsigned long offset);
1458
static void ecoff_setup_ext (void);
1459
static page_type *allocate_cluster (unsigned long npages);
1460
static page_type *allocate_page (void);
1461
static scope_t *allocate_scope (void);
1462
static void free_scope (scope_t *ptr);
1463
static vlinks_t *allocate_vlinks (void);
1464
static shash_t *allocate_shash (void);
1465
static thash_t *allocate_thash (void);
1466
static tag_t *allocate_tag (void);
1467
static void free_tag (tag_t *ptr);
1468
static forward_t *allocate_forward (void);
1469
static thead_t *allocate_thead (void);
1470
static void free_thead (thead_t *ptr);
1471
static lineno_list_t *allocate_lineno_list (void);
1472

1473
/* This function should be called when the assembler starts up.  */
1474
1475
void
1476
ecoff_read_begin_hook (void)
1477
{
1478
  tag_hash = str_htab_create ();
1479
  top_tag_head = allocate_thead ();
1480
  top_tag_head->first_tag = (tag_t *) NULL;
1481
  top_tag_head->free = (thead_t *) NULL;
1482
  top_tag_head->prev = cur_tag_head;
1483
  cur_tag_head = top_tag_head;
1484
}
1485
1486
/* This function should be called when a symbol is created.  */
1487
1488
void
1489
ecoff_symbol_new_hook (symbolS *symbolP)
1490
{
1491
  OBJ_SYMFIELD_TYPE *obj;
1492
1493
  /* Make sure that we have a file pointer, but only if we have seen a
1494
     file.  If we haven't seen a file, then this is a probably special
1495
     symbol created by md_begin which may required special handling at
1496
     some point.  Creating a dummy file with a dummy name is certainly
1497
     wrong.  */
1498
  if (cur_file_ptr == (efdr_t *) NULL
1499
      && seen_at_least_1_file ())
1500
    add_file ((const char *) NULL, 0, 1);
1501
  obj = symbol_get_obj (symbolP);
1502
  obj->ecoff_file = cur_file_ptr;
1503
  obj->ecoff_symbol = NULL;
1504
  obj->ecoff_extern_size = 0;
1505
}
1506
1507
void
1508
ecoff_symbol_clone_hook (symbolS *newsymP, symbolS *orgsymP)
1509
{
1510
  OBJ_SYMFIELD_TYPE *n, *o;
1511
1512
  n = symbol_get_obj (newsymP);
1513
  o = symbol_get_obj (orgsymP);
1514
  memcpy (n, o, sizeof *n);
1515
}
1516

1517
/* Add a page to a varray object.  */
1518
1519
static void
1520
add_varray_page (varray_t *vp /* varray to add page to */)
1521
{
1522
  vlinks_t *new_links = allocate_vlinks ();
1523
1524
#ifdef MALLOC_CHECK
1525
  if (vp->object_size > 1)
1526
    new_links->datum = (page_type *) xcalloc (1, vp->object_size);
1527
  else
1528
#endif
1529
    new_links->datum = allocate_page ();
1530
1531
  alloc_counts[(int) alloc_type_varray].total_alloc++;
1532
  alloc_counts[(int) alloc_type_varray].total_pages++;
1533
1534
  new_links->start_index = vp->num_allocated;
1535
  vp->objects_last_page = 0;
1536
1537
  if (vp->first == (vlinks_t *) NULL)   /* first allocation? */
1538
    vp->first = vp->last = new_links;
1539
  else
1540
    {           /* 2nd or greater allocation */
1541
      new_links->prev = vp->last;
1542
      vp->last->next = new_links;
1543
      vp->last = new_links;
1544
    }
1545
}
1546

1547
/* Add a string (and null pad) to one of the string tables.  */
1548
1549
static symint_t
1550
add_string (varray_t *vp,     /* string obstack */
1551
      htab_t hash_tbl,      /* ptr to hash table */
1552
      const char *str,      /* string */
1553
      shash_t **ret_hash      /* return hash pointer */)
1554
{
1555
  unsigned long len = strlen (str);
1556
  shash_t *hash_ptr;
1557
1558
  if (len >= PAGE_USIZE)
1559
    as_fatal (_("string too big (%lu bytes)"), len);
1560
1561
  hash_ptr = (shash_t *) str_hash_find (hash_tbl, str);
1562
  if (hash_ptr == (shash_t *) NULL)
1563
    {
1564
      if (vp->objects_last_page + len >= PAGE_USIZE)
1565
  {
1566
    vp->num_allocated =
1567
      ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1568
    add_varray_page (vp);
1569
  }
1570
1571
      hash_ptr = allocate_shash ();
1572
      hash_ptr->indx = vp->num_allocated;
1573
1574
      hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1575
1576
      vp->objects_last_page += len + 1;
1577
      vp->num_allocated += len + 1;
1578
1579
      strcpy (hash_ptr->string, str);
1580
1581
      if (str_hash_insert (hash_tbl, str, hash_ptr, 0) != NULL)
1582
  as_fatal (_("duplicate %s"), str);
1583
    }
1584
1585
  if (ret_hash != (shash_t **) NULL)
1586
    *ret_hash = hash_ptr;
1587
1588
  return hash_ptr->indx;
1589
}
1590

1591
/* Add debugging information for a symbol.  */
1592
1593
static localsym_t *
1594
add_ecoff_symbol (const char *str,  /* symbol name */
1595
      st_t type,    /* symbol type */
1596
      sc_t storage,   /* storage class */
1597
      symbolS *sym_value, /* associated symbol.  */
1598
      bfd_vma addend, /* addend to sym_value.  */
1599
      symint_t value, /* value of symbol */
1600
      symint_t indx   /* index to local/aux. syms */)
1601
{
1602
  localsym_t *psym;
1603
  scope_t *pscope;
1604
  thead_t *ptag_head;
1605
  tag_t *ptag;
1606
  tag_t *ptag_next;
1607
  varray_t *vp;
1608
  int scope_delta = 0;
1609
  shash_t *hash_ptr = (shash_t *) NULL;
1610
1611
  if (cur_file_ptr == (efdr_t *) NULL)
1612
    as_fatal (_("no current file pointer"));
1613
1614
  vp = &cur_file_ptr->symbols;
1615
1616
  if (vp->objects_last_page == vp->objects_per_page)
1617
    add_varray_page (vp);
1618
1619
  psym = &vp->last->datum->sym[vp->objects_last_page++];
1620
1621
  if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1622
    psym->name = S_GET_NAME (sym_value);
1623
  else
1624
    psym->name = str;
1625
  psym->as_sym = sym_value;
1626
  if (sym_value != (symbolS *) NULL)
1627
    symbol_get_obj (sym_value)->ecoff_symbol = psym;
1628
  psym->addend = addend;
1629
  psym->file_ptr = cur_file_ptr;
1630
  psym->proc_ptr = cur_proc_ptr;
1631
  psym->begin_ptr = (localsym_t *) NULL;
1632
  psym->index_ptr = (aux_t *) NULL;
1633
  psym->forward_ref = (forward_t *) NULL;
1634
  psym->sym_index = -1;
1635
  memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1636
  psym->ecoff_sym.asym.value = value;
1637
  psym->ecoff_sym.asym.st = (unsigned) type;
1638
  psym->ecoff_sym.asym.sc = (unsigned) storage;
1639
  psym->ecoff_sym.asym.index = indx;
1640
1641
  /* If there is an associated symbol, we wait until the end of the
1642
     assembly before deciding where to put the name (it may be just an
1643
     external symbol).  Otherwise, this is just a debugging symbol and
1644
     the name should go with the current file.  */
1645
  if (sym_value == (symbolS *) NULL)
1646
    psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1647
        ? 0
1648
        : add_string (&cur_file_ptr->strings,
1649
                cur_file_ptr->str_hash,
1650
                str,
1651
                &hash_ptr));
1652
1653
  ++vp->num_allocated;
1654
1655
  if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1656
    return psym;
1657
1658
  /* Save the symbol within the hash table if this is a static
1659
     item, and it has a name.  */
1660
  if (hash_ptr != (shash_t *) NULL
1661
      && (type == st_Global || type == st_Static || type == st_Label
1662
    || type == st_Proc || type == st_StaticProc))
1663
    hash_ptr->sym_ptr = psym;
1664
1665
  /* push or pop a scope if appropriate.  */
1666
  switch (type)
1667
    {
1668
    default:
1669
      break;
1670
1671
    case st_File:     /* beginning of file */
1672
    case st_Proc:     /* procedure */
1673
    case st_StaticProc:     /* static procedure */
1674
    case st_Block:      /* begin scope */
1675
      pscope = allocate_scope ();
1676
      pscope->prev = cur_file_ptr->cur_scope;
1677
      pscope->lsym = psym;
1678
      pscope->type = type;
1679
      cur_file_ptr->cur_scope = pscope;
1680
1681
      if (type != st_File)
1682
  scope_delta = 1;
1683
1684
      /* For every block type except file, struct, union, or
1685
         enumeration blocks, push a level on the tag stack.  We omit
1686
         file types, so that tags can span file boundaries.  */
1687
      if (type != st_File && storage != sc_Info)
1688
  {
1689
    ptag_head = allocate_thead ();
1690
    ptag_head->first_tag = 0;
1691
    ptag_head->prev = cur_tag_head;
1692
    cur_tag_head = ptag_head;
1693
  }
1694
      break;
1695
1696
    case st_End:
1697
      pscope = cur_file_ptr->cur_scope;
1698
      if (pscope == (scope_t *) NULL)
1699
  as_fatal (_("too many st_End's"));
1700
      else
1701
  {
1702
    st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1703
1704
    psym->begin_ptr = pscope->lsym;
1705
1706
    if (begin_type != st_File)
1707
      scope_delta = -1;
1708
1709
    /* Except for file, structure, union, or enumeration end
1710
       blocks remove all tags created within this scope.  */
1711
    if (begin_type != st_File && storage != sc_Info)
1712
      {
1713
        ptag_head = cur_tag_head;
1714
        cur_tag_head = ptag_head->prev;
1715
1716
        for (ptag = ptag_head->first_tag;
1717
       ptag != (tag_t *) NULL;
1718
       ptag = ptag_next)
1719
    {
1720
      if (ptag->forward_ref != (forward_t *) NULL)
1721
        add_unknown_tag (ptag);
1722
1723
      ptag_next = ptag->same_block;
1724
      ptag->hash_ptr->tag_ptr = ptag->same_name;
1725
      free_tag (ptag);
1726
    }
1727
1728
        free_thead (ptag_head);
1729
      }
1730
1731
    cur_file_ptr->cur_scope = pscope->prev;
1732
1733
    /* block begin gets next sym #.  This is set when we know
1734
       the symbol index value.  */
1735
1736
    /* Functions push two or more aux words as follows:
1737
       1st word: index+1 of the end symbol (filled in later).
1738
       2nd word: type of the function (plus any aux words needed).
1739
       Also, tie the external pointer back to the function begin symbol.  */
1740
    if (begin_type != st_File && begin_type != st_Block)
1741
      {
1742
        symint_t ty;
1743
        varray_t *svp = &cur_file_ptr->aux_syms;
1744
1745
        pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1746
        pscope->lsym->index_ptr =
1747
    &svp->last->datum->aux[svp->objects_last_page - 1];
1748
        ty = add_aux_sym_tir (&last_func_type_info,
1749
            hash_no,
1750
            &cur_file_ptr->thash_head[0]);
1751
        (void) ty;
1752
/* This seems to be unnecessary.  I'm not even sure what it is
1753
 * intended to do.  It's from mips-tfile.
1754
 *        if (last_func_sym_value != (symbolS *) NULL)
1755
 *    {
1756
 *      last_func_sym_value->ifd = cur_file_ptr->file_index;
1757
 *      last_func_sym_value->index = ty;
1758
 *    }
1759
 */
1760
      }
1761
1762
    free_scope (pscope);
1763
  }
1764
    }
1765
1766
  cur_file_ptr->nested_scopes += scope_delta;
1767
1768
#ifdef ECOFF_DEBUG
1769
  if (debug && type != st_File
1770
      && (debug > 2 || type == st_Block || type == st_End
1771
    || type == st_Proc || type == st_StaticProc))
1772
    {
1773
      char *sc_str = sc_to_string (storage);
1774
      char *st_str = st_to_string (type);
1775
      int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1776
1777
      fprintf (stderr,
1778
         "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1779
         value, depth, sc_str);
1780
1781
      if (str_start && str_end_p1 - str_start > 0)
1782
  fprintf (stderr, " st= %-11s name= %.*s\n",
1783
     st_str, str_end_p1 - str_start, str_start);
1784
      else
1785
  {
1786
    unsigned long len = strlen (st_str);
1787
    fprintf (stderr, " st= %.*s\n", len - 1, st_str);
1788
  }
1789
    }
1790
#endif
1791
1792
  return psym;
1793
}
1794

1795
/* Add an auxiliary symbol (passing a symint).  This is actually used
1796
   for integral aux types, not just symints.  */
1797
1798
static symint_t
1799
add_aux_sym_symint (symint_t aux_word /* auxiliary information word */)
1800
{
1801
  varray_t *vp;
1802
  aux_t *aux_ptr;
1803
1804
  if (cur_file_ptr == (efdr_t *) NULL)
1805
    as_fatal (_("no current file pointer"));
1806
1807
  vp = &cur_file_ptr->aux_syms;
1808
1809
  if (vp->objects_last_page == vp->objects_per_page)
1810
    add_varray_page (vp);
1811
1812
  aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1813
  aux_ptr->type = aux_isym;
1814
  aux_ptr->data.isym = aux_word;
1815
1816
  return vp->num_allocated++;
1817
}
1818
1819
/* Add an auxiliary symbol (passing a file/symbol index combo).  */
1820
1821
static symint_t
1822
add_aux_sym_rndx (int file_index, symint_t sym_index)
1823
{
1824
  varray_t *vp;
1825
  aux_t *aux_ptr;
1826
1827
  if (cur_file_ptr == (efdr_t *) NULL)
1828
    as_fatal (_("no current file pointer"));
1829
1830
  vp = &cur_file_ptr->aux_syms;
1831
1832
  if (vp->objects_last_page == vp->objects_per_page)
1833
    add_varray_page (vp);
1834
1835
  aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1836
  aux_ptr->type = aux_rndx;
1837
  aux_ptr->data.rndx.rfd   = file_index;
1838
  aux_ptr->data.rndx.index = sym_index;
1839
1840
  return vp->num_allocated++;
1841
}
1842

1843
/* Add an auxiliary symbol (passing the basic type and possibly
1844
   type qualifiers).  */
1845
1846
static symint_t
1847
add_aux_sym_tir (type_info_t *t,  /* current type information */
1848
     hash_state_t state,  /* whether to hash type or not */
1849
     thash_t **hash_tbl /* pointer to hash table to use */)
1850
{
1851
  varray_t *vp;
1852
  aux_t *aux_ptr;
1853
  symint_t ret;
1854
  int i;
1855
  AUXU aux;
1856
1857
  if (cur_file_ptr == (efdr_t *) NULL)
1858
    as_fatal (_("no current file pointer"));
1859
1860
  vp = &cur_file_ptr->aux_syms;
1861
1862
  memset (&aux, 0, sizeof (aux));
1863
  aux.ti.bt = (int) t->basic_type;
1864
  aux.ti.continued = 0;
1865
  aux.ti.fBitfield = t->bitfield;
1866
1867
  aux.ti.tq0 = (int) t->type_qualifiers[0];
1868
  aux.ti.tq1 = (int) t->type_qualifiers[1];
1869
  aux.ti.tq2 = (int) t->type_qualifiers[2];
1870
  aux.ti.tq3 = (int) t->type_qualifiers[3];
1871
  aux.ti.tq4 = (int) t->type_qualifiers[4];
1872
  aux.ti.tq5 = (int) t->type_qualifiers[5];
1873
1874
  /* For anything that adds additional information, we must not hash,
1875
     so check here, and reset our state.  */
1876
1877
  if (state != hash_no
1878
      && (t->type_qualifiers[0] == tq_Array
1879
    || t->type_qualifiers[1] == tq_Array
1880
    || t->type_qualifiers[2] == tq_Array
1881
    || t->type_qualifiers[3] == tq_Array
1882
    || t->type_qualifiers[4] == tq_Array
1883
    || t->type_qualifiers[5] == tq_Array
1884
    || t->basic_type == bt_Struct
1885
    || t->basic_type == bt_Union
1886
    || t->basic_type == bt_Enum
1887
    || t->bitfield
1888
    || t->num_dims > 0))
1889
    state = hash_no;
1890
1891
  /* See if we can hash this type, and save some space, but some types
1892
     can't be hashed (because they contain arrays or continuations),
1893
     and others can be put into the hash list, but cannot use existing
1894
     types because other aux entries precede this one.  */
1895
1896
  if (state != hash_no)
1897
    {
1898
      thash_t *hash_ptr;
1899
      symint_t hi;
1900
1901
      hi = aux.isym & ((1 << HASHBITS) - 1);
1902
      hi %= THASH_SIZE;
1903
1904
      for (hash_ptr = hash_tbl[hi];
1905
     hash_ptr != (thash_t *)0;
1906
     hash_ptr = hash_ptr->next)
1907
  {
1908
    if (aux.isym == hash_ptr->type.isym)
1909
      break;
1910
  }
1911
1912
      if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1913
  return hash_ptr->indx;
1914
1915
      if (hash_ptr == (thash_t *) NULL)
1916
  {
1917
    hash_ptr = allocate_thash ();
1918
    hash_ptr->next = hash_tbl[hi];
1919
    hash_ptr->type = aux;
1920
    hash_ptr->indx = vp->num_allocated;
1921
    hash_tbl[hi] = hash_ptr;
1922
  }
1923
    }
1924
1925
  /* Everything is set up, add the aux symbol.  */
1926
  if (vp->objects_last_page == vp->objects_per_page)
1927
    add_varray_page (vp);
1928
1929
  aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1930
  aux_ptr->type = aux_tir;
1931
  aux_ptr->data = aux;
1932
1933
  ret = vp->num_allocated++;
1934
1935
  /* Add bitfield length if it exists.
1936
1937
     NOTE:  Mips documentation claims bitfield goes at the end of the
1938
     AUX record, but the DECstation compiler emits it here.
1939
     (This would only make a difference for enum bitfields.)
1940
1941
     Also note:  We use the last size given since gcc may emit 2
1942
     for an enum bitfield.  */
1943
1944
  if (t->bitfield)
1945
    (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]);
1946
1947
  /* Add tag information if needed.  Structure, union, and enum
1948
     references add 2 aux symbols: a [file index, symbol index]
1949
     pointer to the structure type, and the current file index.  */
1950
1951
  if (t->basic_type == bt_Struct
1952
      || t->basic_type == bt_Union
1953
      || t->basic_type == bt_Enum)
1954
    {
1955
      symint_t file_index = t->tag_ptr->ifd;
1956
      localsym_t *sym = t->tag_ptr->sym;
1957
      forward_t *forward_ref = allocate_forward ();
1958
1959
      if (sym != (localsym_t *) NULL)
1960
  {
1961
    forward_ref->next = sym->forward_ref;
1962
    sym->forward_ref = forward_ref;
1963
  }
1964
      else
1965
  {
1966
    forward_ref->next = t->tag_ptr->forward_ref;
1967
    t->tag_ptr->forward_ref = forward_ref;
1968
  }
1969
1970
      (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1971
      forward_ref->index_ptr
1972
  = &vp->last->datum->aux[vp->objects_last_page - 1];
1973
1974
      (void) add_aux_sym_symint (file_index);
1975
      forward_ref->ifd_ptr
1976
  = &vp->last->datum->aux[vp->objects_last_page - 1];
1977
    }
1978
1979
  /* Add information about array bounds if they exist.  */
1980
  for (i = 0; i < t->num_dims; i++)
1981
    {
1982
      (void) add_aux_sym_rndx (ST_RFDESCAPE,
1983
             cur_file_ptr->int_type);
1984
1985
      (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1986
      (void) add_aux_sym_symint ((symint_t) 0);     /* low bound */
1987
      (void) add_aux_sym_symint (t->dimensions[i] - 1);   /* high bound*/
1988
      (void) add_aux_sym_symint ((t->dimensions[i] == 0)  /* stride */
1989
         ? 0
1990
         : (t->sizes[i] * 8) / t->dimensions[i]);
1991
    };
1992
1993
  /* NOTE:  Mips documentation claims that the bitfield width goes here.
1994
     But it needs to be emitted earlier.  */
1995
1996
  return ret;
1997
}
1998

1999
/* Add a tag to the tag table (unless it already exists).  */
2000
2001
static tag_t *
2002
get_tag (const char *tag, /* tag name */
2003
   localsym_t *sym, /* tag start block */
2004
   bt_t basic_type  /* bt_Struct, bt_Union, or bt_Enum */)
2005
{
2006
  shash_t *hash_ptr;
2007
  tag_t *tag_ptr;
2008
2009
  if (cur_file_ptr == (efdr_t *) NULL)
2010
    as_fatal (_("no current file pointer"));
2011
2012
  hash_ptr = (shash_t *) str_hash_find (tag_hash, tag);
2013
2014
  if (hash_ptr != (shash_t *) NULL
2015
      && hash_ptr->tag_ptr != (tag_t *) NULL)
2016
    {
2017
      tag_ptr = hash_ptr->tag_ptr;
2018
      if (sym != (localsym_t *) NULL)
2019
  {
2020
    tag_ptr->basic_type = basic_type;
2021
    tag_ptr->ifd        = cur_file_ptr->file_index;
2022
    tag_ptr->sym        = sym;
2023
  }
2024
      return tag_ptr;
2025
    }
2026
2027
  if (hash_ptr == (shash_t *) NULL)
2028
    {
2029
      char *perm;
2030
2031
      perm = xstrdup (tag);
2032
      hash_ptr = allocate_shash ();
2033
      str_hash_insert (tag_hash, perm, hash_ptr, 0);
2034
      hash_ptr->string = perm;
2035
    }
2036
2037
  tag_ptr = allocate_tag ();
2038
  tag_ptr->forward_ref  = (forward_t *) NULL;
2039
  tag_ptr->hash_ptr = hash_ptr;
2040
  tag_ptr->same_name  = hash_ptr->tag_ptr;
2041
  tag_ptr->basic_type = basic_type;
2042
  tag_ptr->sym    = sym;
2043
  tag_ptr->ifd    = ((sym == (localsym_t *) NULL)
2044
         ? (symint_t) -1
2045
         : cur_file_ptr->file_index);
2046
  tag_ptr->same_block = cur_tag_head->first_tag;
2047
2048
  cur_tag_head->first_tag = tag_ptr;
2049
  hash_ptr->tag_ptr   = tag_ptr;
2050
2051
  return tag_ptr;
2052
}
2053

2054
/* Add an unknown {struct, union, enum} tag.  */
2055
2056
static void
2057
add_unknown_tag (tag_t *ptag /* pointer to tag information */)
2058
{
2059
  shash_t *hash_ptr = ptag->hash_ptr;
2060
  char *name    = hash_ptr->string;
2061
  localsym_t *sym;
2062
  forward_t **pf;
2063
2064
#ifdef ECOFF_DEBUG
2065
  if (debug > 1)
2066
    {
2067
      char *agg_type = "{unknown aggregate type}";
2068
      switch (ptag->basic_type)
2069
  {
2070
  case bt_Struct: agg_type = "struct";  break;
2071
  case bt_Union:  agg_type = "union"; break;
2072
  case bt_Enum: agg_type = "enum";  break;
2073
  default:        break;
2074
  }
2075
2076
      fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2077
         hash_ptr->len, name_start);
2078
    }
2079
#endif
2080
2081
  sym = add_ecoff_symbol (name,
2082
        st_Block,
2083
        sc_Info,
2084
        (symbolS *) NULL,
2085
        (bfd_vma) 0,
2086
        (symint_t) 0,
2087
        (symint_t) 0);
2088
2089
  (void) add_ecoff_symbol (name,
2090
         st_End,
2091
         sc_Info,
2092
         (symbolS *) NULL,
2093
         (bfd_vma) 0,
2094
         (symint_t) 0,
2095
         (symint_t) 0);
2096
2097
  for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2098
    ;
2099
  *pf = ptag->forward_ref;
2100
}
2101

2102
/* Add a procedure to the current file's list of procedures, and record
2103
   this is the current procedure.  If AENT, then only set the requested
2104
   symbol's function type.  */
2105
2106
static void
2107
add_procedure (char *func /* func name */, int aent)
2108
{
2109
  varray_t *vp;
2110
  proc_t *new_proc_ptr;
2111
  symbolS *sym;
2112
2113
#ifdef ECOFF_DEBUG
2114
  if (debug)
2115
    fputc ('\n', stderr);
2116
#endif
2117
2118
  /* Set the BSF_FUNCTION flag for the symbol.  */
2119
  sym = symbol_find_or_make (func);
2120
  symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION;
2121
2122
  if (aent)
2123
    return;
2124
2125
  if (cur_file_ptr == (efdr_t *) NULL)
2126
    as_fatal (_("no current file pointer"));
2127
2128
  vp = &cur_file_ptr->procs;
2129
2130
  if (vp->objects_last_page == vp->objects_per_page)
2131
    add_varray_page (vp);
2132
2133
  cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2134
2135
  if (first_proc_ptr == (proc_t *) NULL)
2136
    first_proc_ptr = new_proc_ptr;
2137
2138
  vp->num_allocated++;
2139
2140
  new_proc_ptr->pdr.isym = -1;
2141
  new_proc_ptr->pdr.iline = -1;
2142
  new_proc_ptr->pdr.lnLow = -1;
2143
  new_proc_ptr->pdr.lnHigh = -1;
2144
2145
  /* Push the start of the function.  */
2146
  new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2147
          sym, (bfd_vma) 0, (symint_t) 0,
2148
          (symint_t) 0);
2149
2150
  ++proc_cnt;
2151
2152
  /* Fill in the linenos preceding the .ent, if any.  */
2153
  if (noproc_lineno != (lineno_list_t *) NULL)
2154
    {
2155
      lineno_list_t *l;
2156
2157
      for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2158
  l->proc = new_proc_ptr;
2159
      *last_lineno_ptr = noproc_lineno;
2160
      while (*last_lineno_ptr != NULL)
2161
  {
2162
    last_lineno = *last_lineno_ptr;
2163
    last_lineno_ptr = &last_lineno->next;
2164
  }
2165
      noproc_lineno = (lineno_list_t *) NULL;
2166
    }
2167
}
2168
2169
symbolS *
2170
ecoff_get_cur_proc_sym (void)
2171
{
2172
  return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL);
2173
}
2174

2175
/* Add a new filename, and set up all of the file relative
2176
   virtual arrays (strings, symbols, aux syms, etc.).  Record
2177
   where the current file structure lives.  */
2178
2179
static void
2180
add_file (const char *file_name, int indx ATTRIBUTE_UNUSED, int fake)
2181
{
2182
  int first_ch;
2183
  efdr_t *fil_ptr;
2184
2185
#ifdef ECOFF_DEBUG
2186
  if (debug)
2187
    fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2188
#endif
2189
2190
  /* If the file name is NULL, then no .file symbol appeared, and we
2191
     want to use the actual file name.  */
2192
  if (file_name == (const char *) NULL)
2193
    {
2194
      if (first_file != (efdr_t *) NULL)
2195
  as_fatal (_("fake .file after real one"));
2196
      file_name = as_where ((unsigned int *) NULL);
2197
2198
      /* Automatically generate ECOFF debugging information, since I
2199
         think that's what other ECOFF assemblers do.  We don't do
2200
         this if we see a .file directive with a string, since that
2201
         implies that some sort of debugging information is being
2202
         provided.  */
2203
      if (! symbol_table_frozen && debug_type == DEBUG_UNSPECIFIED)
2204
  debug_type = DEBUG_ECOFF;
2205
    }
2206
  else if (debug_type == DEBUG_UNSPECIFIED)
2207
    debug_type = DEBUG_NONE;
2208
2209
#ifndef NO_LISTING
2210
  if (listing)
2211
    listing_source_file (file_name);
2212
#endif
2213
2214
  current_stabs_filename = file_name;
2215
2216
  /* If we're creating stabs, then we don't actually make a new FDR.
2217
     Instead, we just create a stabs symbol.  */
2218
  if (stabs_seen)
2219
    {
2220
      (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2221
             symbol_new (FAKE_LABEL_NAME, now_seg,
2222
             frag_now, frag_now_fix ()),
2223
             (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
2224
      return;
2225
    }
2226
2227
  first_ch = *file_name;
2228
2229
  /* FIXME: We can't safely merge files which have line number
2230
     information (fMerge will be zero in this case).  Otherwise, we
2231
     get incorrect line number debugging info.  See for instance
2232
     ecoff_build_lineno, which will end up setting all file->fdr.*
2233
     fields multiple times, resulting in incorrect debug info.  In
2234
     order to make this work right, all line number and symbol info
2235
     for the same source file has to be adjacent in the object file,
2236
     so that a single file descriptor can be used to point to them.
2237
     This would require maintaining file specific lists of line
2238
     numbers and symbols for each file, so that they can be merged
2239
     together (or output together) when two .file pseudo-ops are
2240
     merged into one file descriptor.  */
2241
2242
  /* See if the file has already been created.  */
2243
  for (fil_ptr = first_file;
2244
       fil_ptr != (efdr_t *) NULL;
2245
       fil_ptr = fil_ptr->next_file)
2246
    {
2247
      if (first_ch == fil_ptr->name[0]
2248
    && filename_cmp (file_name, fil_ptr->name) == 0
2249
    && fil_ptr->fdr.fMerge)
2250
  {
2251
    cur_file_ptr = fil_ptr;
2252
    if (! fake)
2253
      cur_file_ptr->fake = 0;
2254
    break;
2255
  }
2256
    }
2257
2258
  /* If this is a new file, create it.  */
2259
  if (fil_ptr == (efdr_t *) NULL)
2260
    {
2261
      if (file_desc.objects_last_page == file_desc.objects_per_page)
2262
  add_varray_page (&file_desc);
2263
2264
      fil_ptr = cur_file_ptr =
2265
  &file_desc.last->datum->file[file_desc.objects_last_page++];
2266
      *fil_ptr = init_file;
2267
2268
      fil_ptr->file_index = current_file_idx++;
2269
      ++file_desc.num_allocated;
2270
2271
      fil_ptr->fake = fake;
2272
2273
      /* Allocate the string hash table.  */
2274
      fil_ptr->str_hash = str_htab_create ();
2275
2276
      /* Make sure 0 byte in string table is null  */
2277
      add_string (&fil_ptr->strings,
2278
      fil_ptr->str_hash,
2279
      "",
2280
      (shash_t **)0);
2281
2282
      if (strlen (file_name) > PAGE_USIZE - 2)
2283
  as_fatal (_("filename goes over one page boundary"));
2284
2285
      /* Push the start of the filename. We assume that the filename
2286
         will be stored at string offset 1.  */
2287
      (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2288
             (symbolS *) NULL, (bfd_vma) 0,
2289
             (symint_t) 0, (symint_t) 0);
2290
      fil_ptr->fdr.rss = 1;
2291
      fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2292
2293
      /* Update the linked list of file descriptors.  */
2294
      *last_file_ptr = fil_ptr;
2295
      last_file_ptr = &fil_ptr->next_file;
2296
2297
      /* Add void & int types to the file (void should be first to catch
2298
         errant 0's within the index fields).  */
2299
      fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2300
              hash_yes,
2301
              &cur_file_ptr->thash_head[0]);
2302
2303
      fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2304
             hash_yes,
2305
             &cur_file_ptr->thash_head[0]);
2306
    }
2307
}
2308
2309
/* This function is called when the assembler notices a preprocessor
2310
   directive switching to a new file.  This will not happen in
2311
   compiler output, only in hand coded assembler.  */
2312
2313
void
2314
ecoff_new_file (const char *name)
2315
{
2316
  if (cur_file_ptr != NULL && filename_cmp (cur_file_ptr->name, name) == 0)
2317
    return;
2318
  add_file (name, 0, 0);
2319
2320
  /* This is a hand coded assembler file, so automatically turn on
2321
     debugging information.  */
2322
  if (debug_type == DEBUG_UNSPECIFIED)
2323
    debug_type = DEBUG_ECOFF;
2324
}
2325

2326
#ifdef ECOFF_DEBUG
2327
2328
/* Convert storage class to string.  */
2329
2330
static char *
2331
sc_to_string (storage_class)
2332
     sc_t storage_class;
2333
{
2334
  switch (storage_class)
2335
    {
2336
    case sc_Nil:   return "Nil,";
2337
    case sc_Text:  return "Text,";
2338
    case sc_Data:  return "Data,";
2339
    case sc_Bss:   return "Bss,";
2340
    case sc_Register:  return "Register,";
2341
    case sc_Abs:   return "Abs,";
2342
    case sc_Undefined:   return "Undefined,";
2343
    case sc_CdbLocal:  return "CdbLocal,";
2344
    case sc_Bits:  return "Bits,";
2345
    case sc_CdbSystem:   return "CdbSystem,";
2346
    case sc_RegImage:  return "RegImage,";
2347
    case sc_Info:  return "Info,";
2348
    case sc_UserStruct:  return "UserStruct,";
2349
    case sc_SData:   return "SData,";
2350
    case sc_SBss:  return "SBss,";
2351
    case sc_RData:   return "RData,";
2352
    case sc_Var:   return "Var,";
2353
    case sc_Common:  return "Common,";
2354
    case sc_SCommon:   return "SCommon,";
2355
    case sc_VarRegister: return "VarRegister,";
2356
    case sc_Variant:   return "Variant,";
2357
    case sc_SUndefined:  return "SUndefined,";
2358
    case sc_Init:  return "Init,";
2359
    case sc_Max:   return "Max,";
2360
    }
2361
2362
  return "???,";
2363
}
2364
2365
#endif /* DEBUG */
2366

2367
#ifdef ECOFF_DEBUG
2368
2369
/* Convert symbol type to string.  */
2370
2371
static char *
2372
st_to_string (symbol_type)
2373
     st_t symbol_type;
2374
{
2375
  switch (symbol_type)
2376
    {
2377
    case st_Nil:  return "Nil,";
2378
    case st_Global: return "Global,";
2379
    case st_Static: return "Static,";
2380
    case st_Param:  return "Param,";
2381
    case st_Local:  return "Local,";
2382
    case st_Label:  return "Label,";
2383
    case st_Proc: return "Proc,";
2384
    case st_Block:  return "Block,";
2385
    case st_End:  return "End,";
2386
    case st_Member: return "Member,";
2387
    case st_Typedef:  return "Typedef,";
2388
    case st_File: return "File,";
2389
    case st_RegReloc: return "RegReloc,";
2390
    case st_Forward:  return "Forward,";
2391
    case st_StaticProc: return "StaticProc,";
2392
    case st_Constant: return "Constant,";
2393
    case st_Str:  return "String,";
2394
    case st_Number: return "Number,";
2395
    case st_Expr: return "Expr,";
2396
    case st_Type: return "Type,";
2397
    case st_Max:  return "Max,";
2398
    }
2399
2400
  return "???,";
2401
}
2402
2403
#endif /* DEBUG */
2404

2405
/* Parse .begin directives which have a label as the first argument
2406
   which gives the location of the start of the block.  */
2407
2408
void
2409
ecoff_directive_begin (int ignore ATTRIBUTE_UNUSED)
2410
{
2411
  char *name;
2412
  char name_end;
2413
2414
  if (cur_file_ptr == (efdr_t *) NULL)
2415
    {
2416
      as_warn (_(".begin directive without a preceding .file directive"));
2417
      demand_empty_rest_of_line ();
2418
      return;
2419
    }
2420
2421
  if (cur_proc_ptr == (proc_t *) NULL)
2422
    {
2423
      as_warn (_(".begin directive without a preceding .ent directive"));
2424
      demand_empty_rest_of_line ();
2425
      return;
2426
    }
2427
2428
  name_end = get_symbol_name (&name);
2429
2430
  (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2431
         symbol_find_or_make (name),
2432
         (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2433
2434
  (void) restore_line_pointer (name_end);
2435
2436
  /* The line number follows, but we don't use it.  */
2437
  (void) get_absolute_expression ();
2438
  demand_empty_rest_of_line ();
2439
}
2440

2441
/* Parse .bend directives which have a label as the first argument
2442
   which gives the location of the end of the block.  */
2443
2444
void
2445
ecoff_directive_bend (int ignore ATTRIBUTE_UNUSED)
2446
{
2447
  char *name;
2448
  char name_end;
2449
  symbolS *endsym;
2450
2451
  if (cur_file_ptr == (efdr_t *) NULL)
2452
    {
2453
      as_warn (_(".bend directive without a preceding .file directive"));
2454
      demand_empty_rest_of_line ();
2455
      return;
2456
    }
2457
2458
  if (cur_proc_ptr == (proc_t *) NULL)
2459
    {
2460
      as_warn (_(".bend directive without a preceding .ent directive"));
2461
      demand_empty_rest_of_line ();
2462
      return;
2463
    }
2464
2465
  name_end = get_symbol_name (&name);
2466
2467
  /* The value is the distance between the .bend directive and the
2468
     corresponding symbol.  We fill in the offset when we write out
2469
     the symbol.  */
2470
  endsym = symbol_find (name);
2471
  if (endsym == (symbolS *) NULL)
2472
    as_warn (_(".bend directive names unknown symbol"));
2473
  else
2474
    (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2475
           (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2476
2477
  restore_line_pointer (name_end);
2478
2479
  /* The line number follows, but we don't use it.  */
2480
  (void) get_absolute_expression ();
2481
  demand_empty_rest_of_line ();
2482
}
2483

2484
/* COFF debugging information is provided as a series of directives
2485
   (.def, .scl, etc.).  We build up information as we read the
2486
   directives in the following static variables, and file it away when
2487
   we reach the .endef directive.  */
2488
static char *coff_sym_name;
2489
static type_info_t coff_type;
2490
static sc_t coff_storage_class;
2491
static st_t coff_symbol_typ;
2492
static int coff_is_function;
2493
static char *coff_tag;
2494
static valueT coff_value;
2495
static symbolS *coff_sym_value;
2496
static bfd_vma coff_sym_addend;
2497
static int coff_inside_enumeration;
2498
2499
/* Handle a .def directive: start defining a symbol.  */
2500
2501
void
2502
ecoff_directive_def (int ignore ATTRIBUTE_UNUSED)
2503
{
2504
  char *name;
2505
  char name_end;
2506
2507
  ecoff_debugging_seen = 1;
2508
2509
  SKIP_WHITESPACE ();
2510
2511
  name_end = get_symbol_name (&name);
2512
2513
  if (coff_sym_name != (char *) NULL)
2514
    as_warn (_(".def pseudo-op used inside of .def/.endef; ignored"));
2515
  else if (*name == '\0')
2516
    as_warn (_("empty symbol name in .def; ignored"));
2517
  else
2518
    {
2519
      free (coff_sym_name);
2520
      free (coff_tag);
2521
2522
      coff_sym_name = xstrdup (name);
2523
      coff_type = type_info_init;
2524
      coff_storage_class = sc_Nil;
2525
      coff_symbol_typ = st_Nil;
2526
      coff_is_function = 0;
2527
      coff_tag = (char *) NULL;
2528
      coff_value = 0;
2529
      coff_sym_value = (symbolS *) NULL;
2530
      coff_sym_addend = 0;
2531
    }
2532
2533
  restore_line_pointer (name_end);
2534
2535
  demand_empty_rest_of_line ();
2536
}
2537
2538
/* Handle a .dim directive, used to give dimensions for an array.  The
2539
   arguments are comma separated numbers.  mips-tfile assumes that
2540
   there will not be more than 6 dimensions, and gdb won't read any
2541
   more than that anyhow, so I will also make that assumption.  */
2542
2543
void
2544
ecoff_directive_dim (int ignore ATTRIBUTE_UNUSED)
2545
{
2546
  int dimens[N_TQ];
2547
  int i;
2548
2549
  if (coff_sym_name == (char *) NULL)
2550
    {
2551
      as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored"));
2552
      demand_empty_rest_of_line ();
2553
      return;
2554
    }
2555
2556
  for (i = 0; i < N_TQ; i++)
2557
    {
2558
      SKIP_WHITESPACE ();
2559
      dimens[i] = get_absolute_expression ();
2560
      if (*input_line_pointer == ',')
2561
  ++input_line_pointer;
2562
      else
2563
  {
2564
    if (*input_line_pointer != '\n'
2565
        && *input_line_pointer != ';')
2566
      as_warn (_("badly formed .dim directive"));
2567
    break;
2568
  }
2569
    }
2570
2571
  if (i == N_TQ)
2572
    --i;
2573
2574
  /* The dimensions are stored away in reverse order.  */
2575
  for (; i >= 0; i--)
2576
    {
2577
      if (coff_type.num_dims >= N_TQ)
2578
  {
2579
    as_warn (_("too many .dim entries"));
2580
    break;
2581
  }
2582
      coff_type.dimensions[coff_type.num_dims] = dimens[i];
2583
      ++coff_type.num_dims;
2584
    }
2585
2586
  demand_empty_rest_of_line ();
2587
}
2588
2589
/* Handle a .scl directive, which sets the COFF storage class of the
2590
   symbol.  */
2591
2592
void
2593
ecoff_directive_scl (int ignore ATTRIBUTE_UNUSED)
2594
{
2595
  long val;
2596
2597
  if (coff_sym_name == (char *) NULL)
2598
    {
2599
      as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored"));
2600
      demand_empty_rest_of_line ();
2601
      return;
2602
    }
2603
2604
  val = get_absolute_expression ();
2605
2606
  coff_symbol_typ = map_coff_sym_type[val];
2607
  coff_storage_class = map_coff_storage[val];
2608
2609
  demand_empty_rest_of_line ();
2610
}
2611
2612
/* Handle a .size directive.  For some reason mips-tfile.c thinks that
2613
   .size can have multiple arguments.  We humor it, although gcc will
2614
   never generate more than one argument.  */
2615
2616
void
2617
ecoff_directive_size (int ignore ATTRIBUTE_UNUSED)
2618
{
2619
  int sizes[N_TQ];
2620
  int i;
2621
2622
  if (coff_sym_name == (char *) NULL)
2623
    {
2624
      as_warn (_(".size pseudo-op used outside of .def/.endef; ignored"));
2625
      demand_empty_rest_of_line ();
2626
      return;
2627
    }
2628
2629
  for (i = 0; i < N_TQ; i++)
2630
    {
2631
      SKIP_WHITESPACE ();
2632
      sizes[i] = get_absolute_expression ();
2633
      if (*input_line_pointer == ',')
2634
  ++input_line_pointer;
2635
      else
2636
  {
2637
    if (*input_line_pointer != '\n'
2638
        && *input_line_pointer != ';')
2639
      as_warn (_("badly formed .size directive"));
2640
    break;
2641
  }
2642
    }
2643
2644
  if (i == N_TQ)
2645
    --i;
2646
2647
  /* The sizes are stored away in reverse order.  */
2648
  for (; i >= 0; i--)
2649
    {
2650
      if (coff_type.num_sizes >= N_TQ)
2651
  {
2652
    as_warn (_("too many .size entries"));
2653
    break;
2654
  }
2655
      coff_type.sizes[coff_type.num_sizes] = sizes[i];
2656
      ++coff_type.num_sizes;
2657
    }
2658
2659
  demand_empty_rest_of_line ();
2660
}
2661
2662
/* Handle the .type directive, which gives the COFF type of the
2663
   symbol.  */
2664
2665
void
2666
ecoff_directive_type (int ignore ATTRIBUTE_UNUSED)
2667
{
2668
  long val;
2669
  tq_t *tq_ptr;
2670
  tq_t *tq_shft;
2671
2672
  if (coff_sym_name == (char *) NULL)
2673
    {
2674
      as_warn (_(".type pseudo-op used outside of .def/.endef; ignored"));
2675
      demand_empty_rest_of_line ();
2676
      return;
2677
    }
2678
2679
  val = get_absolute_expression ();
2680
2681
  coff_type.orig_type = BTYPE (val);
2682
  coff_type.basic_type = map_coff_types[coff_type.orig_type];
2683
2684
  tq_ptr = &coff_type.type_qualifiers[N_TQ];
2685
  while (val & ~N_BTMASK)
2686
    {
2687
      if (tq_ptr == &coff_type.type_qualifiers[0])
2688
  {
2689
    /* FIXME: We could handle this by setting the continued bit.
2690
       There would still be a limit: the .type argument can not
2691
       be infinite.  */
2692
    as_warn (_("the type of %s is too complex; it will be simplified"),
2693
       coff_sym_name);
2694
    break;
2695
  }
2696
      if (ISPTR (val))
2697
  *--tq_ptr = tq_Ptr;
2698
      else if (ISFCN (val))
2699
  *--tq_ptr = tq_Proc;
2700
      else if (ISARY (val))
2701
  *--tq_ptr = tq_Array;
2702
      else
2703
  as_fatal (_("Unrecognized .type argument"));
2704
2705
      val = DECREF (val);
2706
    }
2707
2708
  tq_shft = &coff_type.type_qualifiers[0];
2709
  while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2710
    *tq_shft++ = *tq_ptr++;
2711
2712
  if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2713
    {
2714
      /* If this is a function, ignore it, so that we don't get two
2715
         entries (one from the .ent, and one for the .def that
2716
         precedes it).  Save the type information so that the end
2717
         block can properly add it after the begin block index.  For
2718
         MIPS knows what reason, we must strip off the function type
2719
         at this point.  */
2720
      coff_is_function = 1;
2721
      tq_shft[-1] = tq_Nil;
2722
    }
2723
2724
  while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2725
    *tq_shft++ = tq_Nil;
2726
2727
  demand_empty_rest_of_line ();
2728
}
2729
2730
/* Handle the .tag directive, which gives the name of a structure,
2731
   union or enum.  */
2732
2733
void
2734
ecoff_directive_tag (int ignore ATTRIBUTE_UNUSED)
2735
{
2736
  char *name;
2737
  char name_end;
2738
2739
  if (coff_sym_name == (char *) NULL)
2740
    {
2741
      as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored"));
2742
      demand_empty_rest_of_line ();
2743
      return;
2744
    }
2745
2746
  name_end = get_symbol_name (&name);
2747
2748
  coff_tag = xstrdup (name);
2749
2750
  (void) restore_line_pointer (name_end);
2751
2752
  demand_empty_rest_of_line ();
2753
}
2754
2755
/* Handle the .val directive, which gives the value of the symbol.  It
2756
   may be the name of a static or global symbol.  */
2757
2758
void
2759
ecoff_directive_val (int ignore ATTRIBUTE_UNUSED)
2760
{
2761
  expressionS exp;
2762
2763
  if (coff_sym_name == (char *) NULL)
2764
    {
2765
      as_warn (_(".val pseudo-op used outside of .def/.endef; ignored"));
2766
      demand_empty_rest_of_line ();
2767
      return;
2768
    }
2769
2770
  expression (&exp);
2771
  if (exp.X_op != O_constant && exp.X_op != O_symbol)
2772
    {
2773
      as_bad (_(".val expression is too complex"));
2774
      demand_empty_rest_of_line ();
2775
      return;
2776
    }
2777
2778
  if (exp.X_op == O_constant)
2779
    coff_value = exp.X_add_number;
2780
  else
2781
    {
2782
      coff_sym_value = exp.X_add_symbol;
2783
      coff_sym_addend = exp.X_add_number;
2784
    }
2785
2786
  demand_empty_rest_of_line ();
2787
}
2788
2789
/* Handle the .endef directive, which terminates processing of COFF
2790
   debugging information for a symbol.  */
2791
2792
void
2793
ecoff_directive_endef (int ignore ATTRIBUTE_UNUSED)
2794
{
2795
  char *name;
2796
  symint_t indx;
2797
  localsym_t *sym;
2798
2799
  demand_empty_rest_of_line ();
2800
2801
  if (coff_sym_name == (char *) NULL)
2802
    {
2803
      as_warn (_(".endef pseudo-op used before .def; ignored"));
2804
      return;
2805
    }
2806
2807
  name = coff_sym_name;
2808
  coff_sym_name = (char *) NULL;
2809
2810
  /* If the symbol is a static or external, we have already gotten the
2811
     appropriate type and class, so make sure we don't override those
2812
     values.  This is needed because there are some type and classes
2813
     that are not in COFF, such as short data, etc.  */
2814
  if (coff_sym_value != (symbolS *) NULL)
2815
    {
2816
      coff_symbol_typ = st_Nil;
2817
      coff_storage_class = sc_Nil;
2818
    }
2819
2820
  coff_type.extra_sizes = coff_tag != (char *) NULL;
2821
  if (coff_type.num_dims > 0)
2822
    {
2823
      int diff = coff_type.num_dims - coff_type.num_sizes;
2824
      int i = coff_type.num_dims - 1;
2825
      int j;
2826
2827
      if (coff_type.num_sizes != 1 || diff < 0)
2828
  {
2829
    as_warn (_("bad COFF debugging information"));
2830
    return;
2831
  }
2832
2833
      /* If this is an array, make sure the same number of dimensions
2834
         and sizes were passed, creating extra sizes for multiply
2835
         dimensioned arrays if not passed.  */
2836
      coff_type.extra_sizes = 0;
2837
      if (diff)
2838
  {
2839
    j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2840
    while (j >= 0)
2841
      {
2842
        coff_type.sizes[j] = (((j - diff) >= 0)
2843
            ? coff_type.sizes[j - diff]
2844
            : 0);
2845
        j--;
2846
      }
2847
2848
    coff_type.num_sizes = i + 1;
2849
    for (i--; i >= 0; i--)
2850
      coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2851
          ? 0
2852
          : (coff_type.sizes[i + 1]
2853
             / coff_type.dimensions[i + 1]));
2854
  }
2855
    }
2856
  else if (coff_symbol_typ == st_Member
2857
     && coff_type.num_sizes - coff_type.extra_sizes == 1)
2858
    {
2859
      /* Is this a bitfield?  This is indicated by a structure member
2860
         having a size field that isn't an array.  */
2861
      coff_type.bitfield = 1;
2862
    }
2863
2864
  /* Except for enumeration members & begin/ending of scopes, put the
2865
     type word in the aux. symbol table.  */
2866
  if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2867
    indx = 0;
2868
  else if (coff_inside_enumeration)
2869
    indx = cur_file_ptr->void_type;
2870
  else
2871
    {
2872
      if (coff_type.basic_type == bt_Struct
2873
    || coff_type.basic_type == bt_Union
2874
    || coff_type.basic_type == bt_Enum)
2875
  {
2876
    if (coff_tag == (char *) NULL)
2877
      {
2878
        as_warn (_("no tag specified for %s"), name);
2879
        return;
2880
      }
2881
2882
    coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2883
               coff_type.basic_type);
2884
  }
2885
2886
      if (coff_is_function)
2887
  {
2888
    last_func_type_info = coff_type;
2889
    last_func_sym_value = coff_sym_value;
2890
    return;
2891
  }
2892
2893
      indx = add_aux_sym_tir (&coff_type,
2894
            hash_yes,
2895
            &cur_file_ptr->thash_head[0]);
2896
    }
2897
2898
  /* Do any last minute adjustments that are necessary.  */
2899
  switch (coff_symbol_typ)
2900
    {
2901
    default:
2902
      break;
2903
2904
      /* For the beginning of structs, unions, and enumerations, the
2905
         size info needs to be passed in the value field.  */
2906
    case st_Block:
2907
      if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2908
    != 1)
2909
  {
2910
    as_warn (_("bad COFF debugging information"));
2911
    return;
2912
  }
2913
      else
2914
  coff_value = coff_type.sizes[0];
2915
2916
      coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2917
      break;
2918
2919
      /* For the end of structs, unions, and enumerations, omit the
2920
         name which is always ".eos".  This needs to be done last, so
2921
         that any error reporting above gives the correct name.  */
2922
    case st_End:
2923
      free (name);
2924
      name = (char *) NULL;
2925
      coff_value = 0;
2926
      coff_inside_enumeration = 0;
2927
      break;
2928
2929
      /* Members of structures and unions that aren't bitfields, need
2930
         to adjust the value from a byte offset to a bit offset.
2931
         Members of enumerations do not have the value adjusted, and
2932
         can be distinguished by indx == indexNil.  For enumerations,
2933
         update the maximum enumeration value.  */
2934
    case st_Member:
2935
      if (! coff_type.bitfield && ! coff_inside_enumeration)
2936
  coff_value *= 8;
2937
2938
      break;
2939
    }
2940
2941
  /* Add the symbol.  */
2942
  sym = add_ecoff_symbol (name,
2943
        coff_symbol_typ,
2944
        coff_storage_class,
2945
        coff_sym_value,
2946
        coff_sym_addend,
2947
        (symint_t) coff_value,
2948
        indx);
2949
2950
  /* deal with struct, union, and enum tags.  */
2951
  if (coff_symbol_typ == st_Block)
2952
    {
2953
      /* Create or update the tag information.  */
2954
      tag_t *tag_ptr = get_tag (name,
2955
        sym,
2956
        coff_type.basic_type);
2957
      forward_t **pf;
2958
2959
      /* Remember any forward references.  */
2960
      for (pf = &sym->forward_ref;
2961
     *pf != (forward_t *) NULL;
2962
     pf = &(*pf)->next)
2963
  ;
2964
      *pf = tag_ptr->forward_ref;
2965
      tag_ptr->forward_ref = (forward_t *) NULL;
2966
    }
2967
}
2968

2969
/* Parse .end directives.  */
2970
2971
void
2972
ecoff_directive_end (int ignore ATTRIBUTE_UNUSED)
2973
{
2974
  char *name;
2975
  char name_end;
2976
  symbolS *ent;
2977
2978
  if (cur_file_ptr == (efdr_t *) NULL)
2979
    {
2980
      as_warn (_(".end directive without a preceding .file directive"));
2981
      demand_empty_rest_of_line ();
2982
      return;
2983
    }
2984
2985
  if (cur_proc_ptr == (proc_t *) NULL)
2986
    {
2987
      as_warn (_(".end directive without a preceding .ent directive"));
2988
      demand_empty_rest_of_line ();
2989
      return;
2990
    }
2991
2992
  name_end = get_symbol_name (&name);
2993
2994
  if (name == input_line_pointer)
2995
    {
2996
      as_warn (_(".end directive has no name"));
2997
      (void) restore_line_pointer (name_end);
2998
      demand_empty_rest_of_line ();
2999
      return;
3000
    }
3001
3002
  /* The value is the distance between the .end directive and the
3003
     corresponding symbol.  We create a fake symbol to hold the
3004
     current location, and put in the offset when we write out the
3005
     symbol.  */
3006
  ent = symbol_find (name);
3007
  if (ent == (symbolS *) NULL)
3008
    as_warn (_(".end directive names unknown symbol"));
3009
  else
3010
    (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3011
           symbol_new (FAKE_LABEL_NAME, now_seg,
3012
           frag_now, frag_now_fix ()),
3013
           (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3014
3015
#ifdef md_flush_pending_output
3016
  md_flush_pending_output ();
3017
#endif
3018
3019
  cur_proc_ptr = (proc_t *) NULL;
3020
3021
  (void) restore_line_pointer (name_end);
3022
  demand_empty_rest_of_line ();
3023
}
3024

3025
/* Parse .ent directives.  */
3026
3027
void
3028
ecoff_directive_ent (int aent)
3029
{
3030
  char *name;
3031
  char name_end;
3032
3033
  if (cur_file_ptr == (efdr_t *) NULL)
3034
    add_file ((const char *) NULL, 0, 1);
3035
3036
  if (!aent && cur_proc_ptr != (proc_t *) NULL)
3037
    {
3038
      as_warn (_("second .ent directive found before .end directive"));
3039
      demand_empty_rest_of_line ();
3040
      return;
3041
    }
3042
3043
  name_end = get_symbol_name (&name);
3044
3045
  if (name == input_line_pointer)
3046
    {
3047
      as_warn (_("%s directive has no name"), aent ? ".aent" : ".ent");
3048
      (void) restore_line_pointer (name_end);
3049
      demand_empty_rest_of_line ();
3050
      return;
3051
    }
3052
3053
  add_procedure (name, aent);
3054
3055
  (void) restore_line_pointer (name_end);
3056
3057
  /* The .ent directive is sometimes followed by a number.  I'm not
3058
     really sure what the number means.  I don't see any way to store
3059
     the information in the PDR.  The Irix 4 assembler seems to ignore
3060
     the information.  */
3061
  SKIP_WHITESPACE ();
3062
  if (*input_line_pointer == ',')
3063
    {
3064
      ++input_line_pointer;
3065
      SKIP_WHITESPACE ();
3066
    }
3067
  if (ISDIGIT (*input_line_pointer)
3068
      || *input_line_pointer == '-')
3069
    (void) get_absolute_expression ();
3070
3071
  demand_empty_rest_of_line ();
3072
}
3073

3074
/* Parse .extern directives.  */
3075
3076
void
3077
ecoff_directive_extern (int ignore ATTRIBUTE_UNUSED)
3078
{
3079
  char *name;
3080
  int c;
3081
  symbolS *symbolp;
3082
  valueT size;
3083
3084
  c = get_symbol_name (&name);
3085
  symbolp = symbol_find_or_make (name);
3086
  (void) restore_line_pointer (c);
3087
3088
  S_SET_EXTERNAL (symbolp);
3089
3090
  if (*input_line_pointer == ',')
3091
    ++input_line_pointer;
3092
  size = get_absolute_expression ();
3093
3094
  symbol_get_obj (symbolp)->ecoff_extern_size = size;
3095
}
3096

3097
/* Parse .file directives.  */
3098
3099
void
3100
ecoff_directive_file (int ignore ATTRIBUTE_UNUSED)
3101
{
3102
  int indx;
3103
  char *name;
3104
  int len;
3105
3106
  if (cur_proc_ptr != (proc_t *) NULL)
3107
    {
3108
      as_warn (_("no way to handle .file within .ent/.end section"));
3109
      demand_empty_rest_of_line ();
3110
      return;
3111
    }
3112
3113
  indx = (int) get_absolute_expression ();
3114
3115
  /* FIXME: we don't have to save the name here.  */
3116
  name = demand_copy_C_string (&len);
3117
3118
  add_file (name, indx - 1, 0);
3119
3120
  demand_empty_rest_of_line ();
3121
}
3122

3123
/* Parse .fmask directives.  */
3124
3125
void
3126
ecoff_directive_fmask (int ignore ATTRIBUTE_UNUSED)
3127
{
3128
  long val;
3129
3130
  if (cur_proc_ptr == (proc_t *) NULL)
3131
    {
3132
      as_warn (_(".fmask outside of .ent"));
3133
      demand_empty_rest_of_line ();
3134
      return;
3135
    }
3136
3137
  if (get_absolute_expression_and_terminator (&val) != ',')
3138
    {
3139
      as_warn (_("bad .fmask directive"));
3140
      --input_line_pointer;
3141
      demand_empty_rest_of_line ();
3142
      return;
3143
    }
3144
3145
  cur_proc_ptr->pdr.fregmask = val;
3146
  cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3147
3148
  demand_empty_rest_of_line ();
3149
}
3150

3151
/* Parse .frame directives.  */
3152
3153
void
3154
ecoff_directive_frame (int ignore ATTRIBUTE_UNUSED)
3155
{
3156
  long val;
3157
3158
  if (cur_proc_ptr == (proc_t *) NULL)
3159
    {
3160
      as_warn (_(".frame outside of .ent"));
3161
      demand_empty_rest_of_line ();
3162
      return;
3163
    }
3164
3165
  cur_proc_ptr->pdr.framereg = tc_get_register (1);
3166
3167
  SKIP_WHITESPACE ();
3168
  if (*input_line_pointer++ != ','
3169
      || get_absolute_expression_and_terminator (&val) != ',')
3170
    {
3171
      as_warn (_("bad .frame directive"));
3172
      --input_line_pointer;
3173
      demand_empty_rest_of_line ();
3174
      return;
3175
    }
3176
3177
  cur_proc_ptr->pdr.frameoffset = val;
3178
3179
  cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3180
3181
  /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to
3182
     Sandro.  I don't yet know where this value should be stored, if
3183
     anywhere.  Don't call demand_empty_rest_of_line ().  */
3184
  s_ignore (42);
3185
}
3186

3187
/* Parse .mask directives.  */
3188
3189
void
3190
ecoff_directive_mask (int ignore ATTRIBUTE_UNUSED)
3191
{
3192
  long val;
3193
3194
  if (cur_proc_ptr == (proc_t *) NULL)
3195
    {
3196
      as_warn (_(".mask outside of .ent"));
3197
      demand_empty_rest_of_line ();
3198
      return;
3199
    }
3200
3201
  if (get_absolute_expression_and_terminator (&val) != ',')
3202
    {
3203
      as_warn (_("bad .mask directive"));
3204
      --input_line_pointer;
3205
      demand_empty_rest_of_line ();
3206
      return;
3207
    }
3208
3209
  cur_proc_ptr->pdr.regmask = val;
3210
  cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3211
3212
  demand_empty_rest_of_line ();
3213
}
3214

3215
/* Parse .loc directives.  */
3216
3217
void
3218
ecoff_directive_loc (int ignore ATTRIBUTE_UNUSED)
3219
{
3220
  lineno_list_t *list;
3221
  symint_t lineno;
3222
3223
  if (cur_file_ptr == (efdr_t *) NULL)
3224
    {
3225
      as_warn (_(".loc before .file"));
3226
      demand_empty_rest_of_line ();
3227
      return;
3228
    }
3229
3230
  if (now_seg != text_section)
3231
    {
3232
      as_warn (_(".loc outside of .text"));
3233
      demand_empty_rest_of_line ();
3234
      return;
3235
    }
3236
3237
  /* Skip the file number.  */
3238
  SKIP_WHITESPACE ();
3239
  get_absolute_expression ();
3240
  SKIP_WHITESPACE ();
3241
3242
  lineno = get_absolute_expression ();
3243
3244
#ifndef NO_LISTING
3245
  if (listing)
3246
    listing_source_line (lineno);
3247
#endif
3248
3249
  /* If we're building stabs, then output a special label rather than
3250
     ECOFF line number info.  */
3251
  if (stabs_seen)
3252
    {
3253
      (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3254
             symbol_new (FAKE_LABEL_NAME, now_seg,
3255
             frag_now, frag_now_fix ()),
3256
             (bfd_vma) 0, 0, lineno);
3257
      return;
3258
    }
3259
3260
  list = allocate_lineno_list ();
3261
3262
  list->next = (lineno_list_t *) NULL;
3263
  list->file = cur_file_ptr;
3264
  list->proc = cur_proc_ptr;
3265
  list->frag = frag_now;
3266
  list->paddr = frag_now_fix ();
3267
  list->lineno = lineno;
3268
3269
  /* We don't want to merge files which have line numbers.  */
3270
  cur_file_ptr->fdr.fMerge = 0;
3271
3272
  /* A .loc directive will sometimes appear before a .ent directive,
3273
     which means that cur_proc_ptr will be NULL here.  Arrange to
3274
     patch this up.  */
3275
  if (cur_proc_ptr == (proc_t *) NULL)
3276
    {
3277
      lineno_list_t **pl;
3278
3279
      pl = &noproc_lineno;
3280
      while (*pl != (lineno_list_t *) NULL)
3281
  pl = &(*pl)->next;
3282
      *pl = list;
3283
    }
3284
  else
3285
    {
3286
      last_lineno = list;
3287
      *last_lineno_ptr = list;
3288
      last_lineno_ptr = &list->next;
3289
    }
3290
}
3291
3292
/* The MIPS assembler sometimes inserts nop instructions in the
3293
   instruction stream.  When this happens, we must patch up the .loc
3294
   information so that it points to the instruction after the nop.  */
3295
3296
void
3297
ecoff_fix_loc (fragS *old_frag, unsigned long old_frag_offset)
3298
{
3299
  if (last_lineno != NULL
3300
      && last_lineno->frag == old_frag
3301
      && last_lineno->paddr == old_frag_offset)
3302
    {
3303
      last_lineno->frag = frag_now;
3304
      last_lineno->paddr = frag_now_fix ();
3305
    }
3306
}
3307

3308
/* Make sure the @stabs symbol is emitted.  */
3309
3310
static void
3311
mark_stabs (int ignore ATTRIBUTE_UNUSED)
3312
{
3313
  if (! stabs_seen)
3314
    {
3315
      /* Add a dummy @stabs symbol.  */
3316
      stabs_seen = 1;
3317
      (void) add_ecoff_symbol (stabs_symbol, st_Nil, sc_Info,
3318
             (symbolS *) NULL,
3319
             (bfd_vma) 0, (symint_t) -1,
3320
             ECOFF_MARK_STAB (0));
3321
    }
3322
}
3323

3324
/* Parse .weakext directives.  */
3325
#ifndef TC_MIPS
3326
/* For TC_MIPS use the version in tc-mips.c.  */
3327
void
3328
ecoff_directive_weakext (int ignore ATTRIBUTE_UNUSED)
3329
{
3330
  char *name;
3331
  int c;
3332
  symbolS *symbolP;
3333
  expressionS exp;
3334
3335
  c = get_symbol_name (&name);
3336
  symbolP = symbol_find_or_make (name);
3337
  (void) restore_line_pointer (c);
3338
3339
  SKIP_WHITESPACE ();
3340
3341
  if (*input_line_pointer == ',')
3342
    {
3343
      if (S_IS_DEFINED (symbolP))
3344
  {
3345
    as_bad (_("symbol `%s' is already defined"),
3346
      S_GET_NAME (symbolP));
3347
    ignore_rest_of_line ();
3348
    return;
3349
  }
3350
3351
      ++input_line_pointer;
3352
      SKIP_WHITESPACE ();
3353
      if (! is_end_of_line[(unsigned char) *input_line_pointer])
3354
  {
3355
    expression (&exp);
3356
    if (exp.X_op != O_symbol)
3357
      {
3358
        as_bad (_("bad .weakext directive"));
3359
        ignore_rest_of_line ();
3360
        return;
3361
      }
3362
    symbol_set_value_expression (symbolP, &exp);
3363
  }
3364
    }
3365
3366
  S_SET_WEAK (symbolP);
3367
3368
  demand_empty_rest_of_line ();
3369
}
3370
#endif /* not TC_MIPS */
3371

3372
/* Handle .stabs directives.  The actual parsing routine is done by a
3373
   generic routine.  This routine is called via OBJ_PROCESS_STAB.
3374
   When this is called, input_line_pointer will be pointing at the
3375
   value field of the stab.
3376
3377
   .stabs directives have five fields:
3378
  "string"  a string, encoding the type information.
3379
  code    a numeric code, defined in <stab.h>
3380
  0   a zero
3381
  desc    a zero or line number
3382
  value   a numeric value or an address.
3383
3384
    If the value is relocatable, we transform this into:
3385
  iss   points as an index into string space
3386
  value   value from lookup of the name
3387
  st    st from lookup of the name
3388
  sc    sc from lookup of the name
3389
  index   code|CODE_MASK
3390
3391
    If the value is not relocatable, we transform this into:
3392
  iss   points as an index into string space
3393
  value   value
3394
  st    st_Nil
3395
  sc    sc_Nil
3396
  index   code|CODE_MASK
3397
3398
    .stabn directives have four fields (string is null):
3399
  code    a numeric code, defined in <stab.h>
3400
  0   a zero
3401
  desc    a zero or a line number
3402
  value   a numeric value or an address.  */
3403
3404
void
3405
ecoff_stab (int what,
3406
      const char *string,
3407
      int type,
3408
      int other,
3409
      int desc)
3410
{
3411
  efdr_t *save_file_ptr = cur_file_ptr;
3412
  symbolS *sym;
3413
  symint_t value;
3414
  bfd_vma addend;
3415
  st_t st;
3416
  sc_t sc;
3417
  symint_t indx;
3418
  localsym_t *hold = NULL;
3419
3420
  ecoff_debugging_seen = 1;
3421
3422
  /* We don't handle .stabd.  */
3423
  if (what != 's' && what != 'n')
3424
    {
3425
      as_bad (_(".stab%c is not supported"), what);
3426
      return;
3427
    }
3428
3429
  /* A .stabn uses a null name, not an empty string.  */
3430
  if (what == 'n')
3431
    string = NULL;
3432
3433
  /* We ignore the other field.  */
3434
  if (other != 0)
3435
    as_warn (_(".stab%c: ignoring non-zero other field"), what);
3436
3437
  /* Make sure we have a current file.  */
3438
  if (cur_file_ptr == (efdr_t *) NULL)
3439
    {
3440
      add_file ((const char *) NULL, 0, 1);
3441
      save_file_ptr = cur_file_ptr;
3442
    }
3443
3444
  /* For stabs in ECOFF, the first symbol must be @stabs.  This is a
3445
     signal to gdb.  */
3446
  if (stabs_seen == 0)
3447
    mark_stabs (0);
3448
3449
  /* Line number stabs are handled differently, since they have two
3450
     values, the line number and the address of the label.  We use the
3451
     index field (aka desc) to hold the line number, and the value
3452
     field to hold the address.  The symbol type is st_Label, which
3453
     should be different from the other stabs, so that gdb can
3454
     recognize it.  */
3455
  if (type == N_SLINE)
3456
    {
3457
      SYMR dummy_symr;
3458
      char *name;
3459
      char name_end;
3460
3461
#ifndef NO_LISTING
3462
      if (listing)
3463
  listing_source_line ((unsigned int) desc);
3464
#endif
3465
3466
      dummy_symr.index = desc;
3467
      if (dummy_symr.index != desc)
3468
  {
3469
    as_warn (_("line number (%d) for .stab%c directive cannot fit in index field (20 bits)"),
3470
       desc, what);
3471
    return;
3472
  }
3473
3474
      name_end = get_symbol_name (&name);
3475
      sym = symbol_find_or_make (name);
3476
      (void) restore_line_pointer (name_end);
3477
3478
      value = 0;
3479
      addend = 0;
3480
      st = st_Label;
3481
      sc = sc_Text;
3482
      indx = desc;
3483
    }
3484
  else
3485
    {
3486
#ifndef NO_LISTING
3487
      if (listing && (type == N_SO || type == N_SOL))
3488
  listing_source_file (string);
3489
#endif
3490
3491
      if (ISDIGIT (*input_line_pointer)
3492
    || *input_line_pointer == '-'
3493
    || *input_line_pointer == '+')
3494
  {
3495
    st = st_Nil;
3496
    sc = sc_Nil;
3497
    sym = (symbolS *) NULL;
3498
    value = get_absolute_expression ();
3499
    addend = 0;
3500
  }
3501
      else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3502
  {
3503
    as_warn (_("illegal .stab%c directive, bad character"), what);
3504
    return;
3505
  }
3506
      else
3507
  {
3508
    expressionS exp;
3509
3510
    sc = sc_Nil;
3511
    st = st_Nil;
3512
3513
    expression (&exp);
3514
    if (exp.X_op == O_constant)
3515
      {
3516
        sym = NULL;
3517
        value = exp.X_add_number;
3518
        addend = 0;
3519
      }
3520
    else if (exp.X_op == O_symbol)
3521
      {
3522
        sym = exp.X_add_symbol;
3523
        value = 0;
3524
        addend = exp.X_add_number;
3525
      }
3526
    else
3527
      {
3528
        sym = make_expr_symbol (&exp);
3529
        value = 0;
3530
        addend = 0;
3531
      }
3532
  }
3533
3534
      indx = ECOFF_MARK_STAB (type);
3535
    }
3536
3537
  /* Don't store the stabs symbol we are creating as the type of the
3538
     ECOFF symbol.  We want to compute the type of the ECOFF symbol
3539
     independently.  */
3540
  if (sym != (symbolS *) NULL)
3541
    hold = symbol_get_obj (sym)->ecoff_symbol;
3542
3543
  (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3544
3545
  if (sym != (symbolS *) NULL)
3546
    symbol_get_obj (sym)->ecoff_symbol = hold;
3547
3548
  /* Restore normal file type.  */
3549
  cur_file_ptr = save_file_ptr;
3550
}
3551

3552
static asection ecoff_scom_section;
3553
static const asymbol ecoff_scom_symbol =
3554
  GLOBAL_SYM_INIT (SCOMMON, &ecoff_scom_section);
3555
static asection ecoff_scom_section =
3556
  BFD_FAKE_SECTION (ecoff_scom_section, &ecoff_scom_symbol,
3557
        SCOMMON, 0, SEC_IS_COMMON | SEC_SMALL_DATA);
3558
3559
/* Frob an ECOFF symbol.  Small common symbols go into a special
3560
   .scommon section rather than bfd_com_section.  */
3561
3562
void
3563
ecoff_frob_symbol (symbolS *sym)
3564
{
3565
  if (S_IS_COMMON (sym)
3566
      && S_GET_VALUE (sym) > 0
3567
      && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3568
    {
3569
      S_SET_SEGMENT (sym, &ecoff_scom_section);
3570
    }
3571
3572
  /* Double check weak symbols.  */
3573
  if (S_IS_WEAK (sym))
3574
    {
3575
      if (S_IS_COMMON (sym))
3576
  as_bad (_("symbol `%s' can not be both weak and common"),
3577
    S_GET_NAME (sym));
3578
    }
3579
}
3580

3581
/* Add bytes to the symbolic information buffer.  */
3582
3583
static char *
3584
ecoff_add_bytes (char **buf,
3585
     char **bufend,
3586
     char *bufptr,
3587
     unsigned long need)
3588
{
3589
  unsigned long at;
3590
  unsigned long want;
3591
3592
  at = bufptr - *buf;
3593
  need -= *bufend - bufptr;
3594
  if (need < PAGE_SIZE)
3595
    need = PAGE_SIZE;
3596
  want = (*bufend - *buf) + need;
3597
  *buf = XRESIZEVEC (char, *buf, want);
3598
  *bufend = *buf + want;
3599
  return *buf + at;
3600
}
3601
3602
/* Adjust the symbolic information buffer to the alignment required
3603
   for the ECOFF target debugging information.  */
3604
3605
static unsigned long
3606
ecoff_padding_adjust (const struct ecoff_debug_swap *backend,
3607
          char **buf,
3608
          char **bufend,
3609
          unsigned long offset,
3610
          char **bufptrptr)
3611
{
3612
  bfd_size_type align;
3613
3614
  align = backend->debug_align;
3615
  if ((offset & (align - 1)) != 0)
3616
    {
3617
      unsigned long add;
3618
3619
      add = align - (offset & (align - 1));
3620
      if ((unsigned long) (*bufend - (*buf + offset)) < add)
3621
  (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3622
      memset (*buf + offset, 0, add);
3623
      offset += add;
3624
      if (bufptrptr != (char **) NULL)
3625
  *bufptrptr = *buf + offset;
3626
    }
3627
3628
  return offset;
3629
}
3630
3631
/* Build the line number information.  */
3632
3633
static unsigned long
3634
ecoff_build_lineno (const struct ecoff_debug_swap *backend,
3635
        char **buf,
3636
        char **bufend,
3637
        unsigned long offset,
3638
        long *linecntptr)
3639
{
3640
  char *bufptr;
3641
  lineno_list_t *l;
3642
  lineno_list_t *last;
3643
  efdr_t *file;
3644
  proc_t *proc;
3645
  unsigned long c;
3646
  long iline;
3647
  long totcount;
3648
  lineno_list_t first;
3649
  lineno_list_t *local_first_lineno = first_lineno;
3650
3651
  if (linecntptr != (long *) NULL)
3652
    *linecntptr = 0;
3653
3654
  bufptr = *buf + offset;
3655
3656
  file = (efdr_t *) NULL;
3657
  proc = (proc_t *) NULL;
3658
  last = (lineno_list_t *) NULL;
3659
  c = offset;
3660
  iline = 0;
3661
  totcount = 0;
3662
3663
  /* FIXME?  Now that MIPS embedded-PIC is gone, it may be safe to
3664
     remove this code.  */
3665
  /* For some reason the address of the first procedure is ignored
3666
     when reading line numbers.  This doesn't matter if the address of
3667
     the first procedure is 0, but when gcc is generating MIPS
3668
     embedded PIC code, it will put strings in the .text section
3669
     before the first procedure.  We cope by inserting a dummy line if
3670
     the address of the first procedure is not 0.  Hopefully this
3671
     won't screw things up too badly.
3672
3673
     Don't do this for ECOFF assembly source line numbers.  They work
3674
     without this extra attention.  */
3675
  if (debug_type != DEBUG_ECOFF
3676
      && first_proc_ptr != (proc_t *) NULL
3677
      && local_first_lineno != (lineno_list_t *) NULL
3678
      && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3679
     + bfd_section_vma (S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3680
    != 0))
3681
    {
3682
      first.file = local_first_lineno->file;
3683
      first.proc = local_first_lineno->proc;
3684
      first.frag = &zero_address_frag;
3685
      first.paddr = 0;
3686
      first.lineno = 0;
3687
3688
      first.next = local_first_lineno;
3689
      local_first_lineno = &first;
3690
    }
3691
3692
  for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3693
    {
3694
      long count;
3695
      long delta;
3696
3697
      /* Get the offset to the memory address of the next line number
3698
         (in words).  Do this first, so that we can skip ahead to the
3699
         next useful line number entry.  */
3700
      if (l->next == (lineno_list_t *) NULL)
3701
  {
3702
    /* We want a count of zero, but it will be decremented
3703
       before it is used.  */
3704
    count = 1;
3705
  }
3706
      else if (l->next->frag->fr_address + l->next->paddr
3707
         > l->frag->fr_address + l->paddr)
3708
  {
3709
    count = ((l->next->frag->fr_address + l->next->paddr
3710
        - (l->frag->fr_address + l->paddr))
3711
       >> 2);
3712
  }
3713
      else
3714
  {
3715
    /* Don't change last, so we still get the right delta.  */
3716
    continue;
3717
  }
3718
3719
      if (l->file != file || l->proc != proc)
3720
  {
3721
    if (l->proc != proc && proc != (proc_t *) NULL)
3722
      proc->pdr.lnHigh = last->lineno;
3723
    if (l->file != file && file != (efdr_t *) NULL)
3724
      {
3725
        file->fdr.cbLine = c - file->fdr.cbLineOffset;
3726
        file->fdr.cline = totcount + count;
3727
        if (linecntptr != (long *) NULL)
3728
    *linecntptr += totcount + count;
3729
        totcount = 0;
3730
      }
3731
3732
    if (l->file != file)
3733
      {
3734
        efdr_t *last_file = file;
3735
3736
        file = l->file;
3737
        if (last_file != (efdr_t *) NULL)
3738
    file->fdr.ilineBase
3739
      = last_file->fdr.ilineBase + last_file->fdr.cline;
3740
        else
3741
    file->fdr.ilineBase = 0;
3742
        file->fdr.cbLineOffset = c;
3743
      }
3744
    if (l->proc != proc)
3745
      {
3746
        proc = l->proc;
3747
        if (proc != (proc_t *) NULL)
3748
    {
3749
      proc->pdr.lnLow = l->lineno;
3750
      proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3751
      proc->pdr.iline = totcount;
3752
    }
3753
      }
3754
3755
    last = (lineno_list_t *) NULL;
3756
  }
3757
3758
      totcount += count;
3759
3760
      /* Get the offset to this line number.  */
3761
      if (last == (lineno_list_t *) NULL)
3762
  delta = 0;
3763
      else
3764
  delta = l->lineno - last->lineno;
3765
3766
      /* Put in the offset to this line number.  */
3767
      while (delta != 0)
3768
  {
3769
    int setcount;
3770
3771
    /* 1 is added to each count read.  */
3772
    --count;
3773
    /* We can only adjust the word count by up to 15 words at a
3774
       time.  */
3775
    if (count <= 0x0f)
3776
      {
3777
        setcount = count;
3778
        count = 0;
3779
      }
3780
    else
3781
      {
3782
        setcount = 0x0f;
3783
        count -= 0x0f;
3784
      }
3785
    if (delta >= -7 && delta <= 7)
3786
      {
3787
        if (bufptr >= *bufend)
3788
    bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3789
        *bufptr++ = setcount + (delta << 4);
3790
        delta = 0;
3791
        ++c;
3792
      }
3793
    else
3794
      {
3795
        int set;
3796
3797
        if (*bufend - bufptr < 3)
3798
    bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3799
        *bufptr++ = setcount + (8 << 4);
3800
        if (delta < -0x8000)
3801
    {
3802
      set = -0x8000;
3803
      delta += 0x8000;
3804
    }
3805
        else if (delta > 0x7fff)
3806
    {
3807
      set = 0x7fff;
3808
      delta -= 0x7fff;
3809
    }
3810
        else
3811
    {
3812
      set = delta;
3813
      delta = 0;
3814
    }
3815
        *bufptr++ = set >> 8;
3816
        *bufptr++ = set & 0xffff;
3817
        c += 3;
3818
      }
3819
  }
3820
3821
      /* Finish adjusting the count.  */
3822
      while (count > 0)
3823
  {
3824
    if (bufptr >= *bufend)
3825
      bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3826
    /* 1 is added to each count read.  */
3827
    --count;
3828
    if (count > 0x0f)
3829
      {
3830
        *bufptr++ = 0x0f;
3831
        count -= 0x0f;
3832
      }
3833
    else
3834
      {
3835
        *bufptr++ = count;
3836
        count = 0;
3837
      }
3838
    ++c;
3839
  }
3840
3841
      ++iline;
3842
      last = l;
3843
    }
3844
3845
  if (proc != (proc_t *) NULL)
3846
    proc->pdr.lnHigh = last->lineno;
3847
  if (file != (efdr_t *) NULL)
3848
    {
3849
      file->fdr.cbLine = c - file->fdr.cbLineOffset;
3850
      file->fdr.cline = totcount;
3851
    }
3852
3853
  if (linecntptr != (long *) NULL)
3854
    *linecntptr += totcount;
3855
3856
  c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3857
3858
  return c;
3859
}
3860
3861
/* Build and swap out the symbols.  */
3862
3863
static unsigned long
3864
ecoff_build_symbols (const struct ecoff_debug_swap *backend,
3865
         char **buf,
3866
         char **bufend,
3867
         unsigned long offset)
3868
{
3869
  const bfd_size_type external_sym_size = backend->external_sym_size;
3870
  void (* const swap_sym_out) (bfd *, const SYMR *, void *)
3871
    = backend->swap_sym_out;
3872
  char *sym_out;
3873
  long isym;
3874
  vlinks_t *file_link;
3875
3876
  sym_out = *buf + offset;
3877
3878
  isym = 0;
3879
3880
  /* The symbols are stored by file.  */
3881
  for (file_link = file_desc.first;
3882
       file_link != (vlinks_t *) NULL;
3883
       file_link = file_link->next)
3884
    {
3885
      int ifilesym;
3886
      int fil_cnt;
3887
      efdr_t *fil_ptr;
3888
      efdr_t *fil_end;
3889
3890
      if (file_link->next == (vlinks_t *) NULL)
3891
  fil_cnt = file_desc.objects_last_page;
3892
      else
3893
  fil_cnt = file_desc.objects_per_page;
3894
      fil_ptr = file_link->datum->file;
3895
      fil_end = fil_ptr + fil_cnt;
3896
      for (; fil_ptr < fil_end; fil_ptr++)
3897
  {
3898
    vlinks_t *sym_link;
3899
3900
    fil_ptr->fdr.isymBase = isym;
3901
    ifilesym = isym;
3902
    for (sym_link = fil_ptr->symbols.first;
3903
         sym_link != (vlinks_t *) NULL;
3904
         sym_link = sym_link->next)
3905
      {
3906
        int sym_cnt;
3907
        localsym_t *sym_ptr;
3908
        localsym_t *sym_end;
3909
3910
        if (sym_link->next == (vlinks_t *) NULL)
3911
    sym_cnt = fil_ptr->symbols.objects_last_page;
3912
        else
3913
    sym_cnt = fil_ptr->symbols.objects_per_page;
3914
        sym_ptr = sym_link->datum->sym;
3915
        sym_end = sym_ptr + sym_cnt;
3916
        for (; sym_ptr < sym_end; sym_ptr++)
3917
    {
3918
      int local;
3919
      symbolS *as_sym;
3920
      forward_t *f;
3921
3922
      know (sym_ptr->file_ptr == fil_ptr);
3923
3924
      /* If there is no associated gas symbol, then this
3925
         is a pure debugging symbol.  We have already
3926
         added the name (if any) to fil_ptr->strings.
3927
         Otherwise we must decide whether this is an
3928
         external or a local symbol (actually, it may be
3929
         both if the local provides additional debugging
3930
         information for the external).  */
3931
      local = 1;
3932
      as_sym = sym_ptr->as_sym;
3933
      if (as_sym != (symbolS *) NULL)
3934
        {
3935
          symint_t indx;
3936
3937
          /* The value of a block start symbol is the
3938
             offset from the start of the procedure.  For
3939
             other symbols we just use the gas value (but
3940
             we must offset it by the vma of the section,
3941
             just as BFD does, because BFD will not see
3942
             this value).  */
3943
          if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
3944
        && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
3945
      {
3946
        symbolS *begin_sym;
3947
3948
        know (sym_ptr->proc_ptr != (proc_t *) NULL);
3949
        begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3950
        if (S_GET_SEGMENT (as_sym)
3951
            != S_GET_SEGMENT (begin_sym))
3952
          as_warn (_(".begin/.bend in different segments"));
3953
        sym_ptr->ecoff_sym.asym.value =
3954
          S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3955
      }
3956
          else
3957
      sym_ptr->ecoff_sym.asym.value =
3958
        (S_GET_VALUE (as_sym)
3959
         + bfd_section_vma (S_GET_SEGMENT (as_sym))
3960
         + sym_ptr->addend);
3961
3962
          sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
3963
3964
          /* Set st_Proc to st_StaticProc for local
3965
       functions.  */
3966
          if (sym_ptr->ecoff_sym.asym.st == st_Proc
3967
        && S_IS_DEFINED (as_sym)
3968
        && ! S_IS_EXTERNAL (as_sym)
3969
        && ! S_IS_WEAK (as_sym))
3970
      sym_ptr->ecoff_sym.asym.st = st_StaticProc;
3971
3972
          /* Get the type and storage class based on where
3973
             the symbol actually wound up.  Traditionally,
3974
             N_LBRAC and N_RBRAC are *not* relocated.  */
3975
          indx = sym_ptr->ecoff_sym.asym.index;
3976
          if (sym_ptr->ecoff_sym.asym.st == st_Nil
3977
        && sym_ptr->ecoff_sym.asym.sc == sc_Nil
3978
        && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3979
            || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
3980
          && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
3981
      {
3982
        segT seg;
3983
        const char *segname;
3984
        st_t st;
3985
        sc_t sc;
3986
3987
        seg = S_GET_SEGMENT (as_sym);
3988
        segname = segment_name (seg);
3989
3990
        if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3991
            && (S_IS_EXTERNAL (as_sym)
3992
          || S_IS_WEAK (as_sym)
3993
          || ! S_IS_DEFINED (as_sym)))
3994
          {
3995
            if ((symbol_get_bfdsym (as_sym)->flags
3996
           & BSF_FUNCTION) != 0)
3997
        st = st_Proc;
3998
            else
3999
        st = st_Global;
4000
          }
4001
        else if (seg == text_section)
4002
          st = st_Label;
4003
        else
4004
          st = st_Static;
4005
4006
        if (! S_IS_DEFINED (as_sym))
4007
          {
4008
            valueT s;
4009
4010
            s = symbol_get_obj (as_sym)->ecoff_extern_size;
4011
            if (s == 0
4012
          || s > bfd_get_gp_size (stdoutput))
4013
        sc = sc_Undefined;
4014
            else
4015
        {
4016
          sc = sc_SUndefined;
4017
          sym_ptr->ecoff_sym.asym.value = s;
4018
        }
4019
#ifdef S_SET_SIZE
4020
            S_SET_SIZE (as_sym, s);
4021
#endif
4022
          }
4023
        else if (S_IS_COMMON (as_sym))
4024
          {
4025
            if (S_GET_VALUE (as_sym) > 0
4026
          && (S_GET_VALUE (as_sym)
4027
              <= bfd_get_gp_size (stdoutput)))
4028
        sc = sc_SCommon;
4029
            else
4030
        sc = sc_Common;
4031
          }
4032
        else if (seg == text_section)
4033
          sc = sc_Text;
4034
        else if (seg == data_section)
4035
          sc = sc_Data;
4036
        else if (strcmp (segname, ".rdata") == 0
4037
           || strcmp (segname, ".rodata") == 0)
4038
          sc = sc_RData;
4039
        else if (strcmp (segname, ".sdata") == 0)
4040
          sc = sc_SData;
4041
        else if (seg == bss_section)
4042
          sc = sc_Bss;
4043
        else if (strcmp (segname, ".sbss") == 0)
4044
          sc = sc_SBss;
4045
        else if (seg == bfd_abs_section_ptr)
4046
          sc = sc_Abs;
4047
        else
4048
          {
4049
            /* This must be a user named section.
4050
               This is not possible in ECOFF, but it
4051
               is in ELF.  */
4052
            sc = sc_Data;
4053
          }
4054
4055
        sym_ptr->ecoff_sym.asym.st = (int) st;
4056
        sym_ptr->ecoff_sym.asym.sc = (int) sc;
4057
      }
4058
4059
          /* This is just an external symbol if it is
4060
             outside a procedure and it has a type.
4061
             FIXME: g++ will generate symbols which have
4062
             different names in the debugging information
4063
             than the actual symbol.  Should we handle
4064
             them here?  */
4065
          if ((S_IS_EXTERNAL (as_sym)
4066
         || S_IS_WEAK (as_sym)
4067
         || ! S_IS_DEFINED (as_sym))
4068
        && sym_ptr->proc_ptr == (proc_t *) NULL
4069
        && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4070
        && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4071
      local = 0;
4072
4073
          /* This is just an external symbol if it is a
4074
             common symbol.  */
4075
          if (S_IS_COMMON (as_sym))
4076
      local = 0;
4077
4078
          /* If an st_end symbol has an associated gas
4079
             symbol, then it is a local label created for
4080
             a .bend or .end directive.  Stabs line
4081
             numbers will have FAKE_LABEL_CHAR in the names.  */
4082
          if (local
4083
        && sym_ptr->ecoff_sym.asym.st != st_End
4084
        && strchr (sym_ptr->name, FAKE_LABEL_CHAR) == 0)
4085
      sym_ptr->ecoff_sym.asym.iss =
4086
        add_string (&fil_ptr->strings,
4087
              fil_ptr->str_hash,
4088
              sym_ptr->name,
4089
              (shash_t **) NULL);
4090
        }
4091
4092
      /* We now know the index of this symbol; fill in
4093
         locations that have been waiting for that
4094
         information.  */
4095
      if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4096
        {
4097
          localsym_t *begin_ptr;
4098
          st_t begin_type;
4099
4100
          know (local);
4101
          begin_ptr = sym_ptr->begin_ptr;
4102
          know (begin_ptr->sym_index != -1);
4103
          sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4104
          if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4105
      sym_ptr->ecoff_sym.asym.iss =
4106
        begin_ptr->ecoff_sym.asym.iss;
4107
4108
          begin_type = (st_t) begin_ptr->ecoff_sym.asym.st;
4109
          if (begin_type == st_File
4110
        || begin_type == st_Block)
4111
      {
4112
        begin_ptr->ecoff_sym.asym.index =
4113
          isym - ifilesym + 1;
4114
        (*swap_sym_out) (stdoutput,
4115
             &begin_ptr->ecoff_sym.asym,
4116
             (*buf
4117
              + offset
4118
              + (begin_ptr->sym_index
4119
                 * external_sym_size)));
4120
      }
4121
          else
4122
      {
4123
        know (begin_ptr->index_ptr != (aux_t *) NULL);
4124
        begin_ptr->index_ptr->data.isym =
4125
          isym - ifilesym + 1;
4126
      }
4127
4128
          /* The value of the symbol marking the end of a
4129
             procedure is the size of the procedure.  The
4130
             value of the symbol marking the end of a
4131
             block is the offset from the start of the
4132
             procedure to the block.  */
4133
          if (begin_type == st_Proc
4134
        || begin_type == st_StaticProc)
4135
      {
4136
        know (as_sym != (symbolS *) NULL);
4137
        know (begin_ptr->as_sym != (symbolS *) NULL);
4138
        if (S_GET_SEGMENT (as_sym)
4139
            != S_GET_SEGMENT (begin_ptr->as_sym))
4140
          as_warn (_(".begin/.bend in different segments"));
4141
        sym_ptr->ecoff_sym.asym.value =
4142
          (S_GET_VALUE (as_sym)
4143
           - S_GET_VALUE (begin_ptr->as_sym));
4144
4145
        /* If the size is odd, this is probably a
4146
           mips16 function; force it to be even.  */
4147
        if ((sym_ptr->ecoff_sym.asym.value & 1) != 0)
4148
          ++sym_ptr->ecoff_sym.asym.value;
4149
4150
#ifdef S_SET_SIZE
4151
        S_SET_SIZE (begin_ptr->as_sym,
4152
              sym_ptr->ecoff_sym.asym.value);
4153
#endif
4154
      }
4155
          else if (begin_type == st_Block
4156
             && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4157
      {
4158
        symbolS *begin_sym;
4159
4160
        know (as_sym != (symbolS *) NULL);
4161
        know (sym_ptr->proc_ptr != (proc_t *) NULL);
4162
        begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4163
        if (S_GET_SEGMENT (as_sym)
4164
            != S_GET_SEGMENT (begin_sym))
4165
          as_warn (_(".begin/.bend in different segments"));
4166
        sym_ptr->ecoff_sym.asym.value =
4167
          S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4168
      }
4169
        }
4170
4171
      for (f = sym_ptr->forward_ref;
4172
           f != (forward_t *) NULL;
4173
           f = f->next)
4174
        {
4175
          know (local);
4176
          f->ifd_ptr->data.isym = fil_ptr->file_index;
4177
          f->index_ptr->data.rndx.index = isym - ifilesym;
4178
        }
4179
4180
      if (local)
4181
        {
4182
          if ((bfd_size_type)(*bufend - sym_out) < external_sym_size)
4183
      sym_out = ecoff_add_bytes (buf, bufend,
4184
               sym_out,
4185
               external_sym_size);
4186
          (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4187
               sym_out);
4188
          sym_out += external_sym_size;
4189
4190
          sym_ptr->sym_index = isym;
4191
4192
          if (sym_ptr->proc_ptr != (proc_t *) NULL
4193
        && sym_ptr->proc_ptr->sym == sym_ptr)
4194
      sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4195
4196
          ++isym;
4197
        }
4198
4199
      /* Record the local symbol index and file number in
4200
         case this is an external symbol.  Note that this
4201
         destroys the asym.index field.  */
4202
      if (as_sym != (symbolS *) NULL
4203
          && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr)
4204
        {
4205
          if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4206
         || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4207
        && local)
4208
      sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4209
          sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4210
4211
          /* Don't try to merge an FDR which has an
4212
             external symbol attached to it.  */
4213
          if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym))
4214
      fil_ptr->fdr.fMerge = 0;
4215
        }
4216
    }
4217
      }
4218
    fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4219
  }
4220
    }
4221
4222
  return offset + isym * external_sym_size;
4223
}
4224
4225
/* Swap out the procedure information.  */
4226
4227
static unsigned long
4228
ecoff_build_procs (const struct ecoff_debug_swap *backend,
4229
       char **buf,
4230
       char **bufend,
4231
       unsigned long offset)
4232
{
4233
  const bfd_size_type external_pdr_size = backend->external_pdr_size;
4234
  void (* const swap_pdr_out) (bfd *, const PDR *, void *)
4235
    = backend->swap_pdr_out;
4236
  char *pdr_out;
4237
  long iproc;
4238
  vlinks_t *file_link;
4239
4240
  pdr_out = *buf + offset;
4241
4242
  iproc = 0;
4243
4244
  /* The procedures are stored by file.  */
4245
  for (file_link = file_desc.first;
4246
       file_link != (vlinks_t *) NULL;
4247
       file_link = file_link->next)
4248
    {
4249
      int fil_cnt;
4250
      efdr_t *fil_ptr;
4251
      efdr_t *fil_end;
4252
4253
      if (file_link->next == (vlinks_t *) NULL)
4254
  fil_cnt = file_desc.objects_last_page;
4255
      else
4256
  fil_cnt = file_desc.objects_per_page;
4257
      fil_ptr = file_link->datum->file;
4258
      fil_end = fil_ptr + fil_cnt;
4259
      for (; fil_ptr < fil_end; fil_ptr++)
4260
  {
4261
    vlinks_t *proc_link;
4262
    int first;
4263
4264
    fil_ptr->fdr.ipdFirst = iproc;
4265
    first = 1;
4266
    for (proc_link = fil_ptr->procs.first;
4267
         proc_link != (vlinks_t *) NULL;
4268
         proc_link = proc_link->next)
4269
      {
4270
        int prc_cnt;
4271
        proc_t *proc_ptr;
4272
        proc_t *proc_end;
4273
4274
        if (proc_link->next == (vlinks_t *) NULL)
4275
    prc_cnt = fil_ptr->procs.objects_last_page;
4276
        else
4277
    prc_cnt = fil_ptr->procs.objects_per_page;
4278
        proc_ptr = proc_link->datum->proc;
4279
        proc_end = proc_ptr + prc_cnt;
4280
        for (; proc_ptr < proc_end; proc_ptr++)
4281
    {
4282
      symbolS *adr_sym;
4283
      unsigned long adr;
4284
4285
      adr_sym = proc_ptr->sym->as_sym;
4286
      adr = (S_GET_VALUE (adr_sym)
4287
       + bfd_section_vma (S_GET_SEGMENT (adr_sym)));
4288
      if (first)
4289
        {
4290
          /* This code used to force the adr of the very
4291
             first fdr to be 0.  However, the native tools
4292
             don't do that, and I can't remember why it
4293
             used to work that way, so I took it out.  */
4294
          fil_ptr->fdr.adr = adr;
4295
          first = 0;
4296
        }
4297
      proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4298
      if ((bfd_size_type)(*bufend - pdr_out) < external_pdr_size)
4299
        pdr_out = ecoff_add_bytes (buf, bufend,
4300
                 pdr_out,
4301
                 external_pdr_size);
4302
      (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4303
      pdr_out += external_pdr_size;
4304
      ++iproc;
4305
    }
4306
      }
4307
    fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4308
  }
4309
    }
4310
4311
  return offset + iproc * external_pdr_size;
4312
}
4313
4314
/* Swap out the aux information.  */
4315
4316
static unsigned long
4317
ecoff_build_aux (const struct ecoff_debug_swap *backend,
4318
     char **buf,
4319
     char **bufend,
4320
     unsigned long offset)
4321
{
4322
  int bigendian;
4323
  union aux_ext *aux_out;
4324
  long iaux;
4325
  vlinks_t *file_link;
4326
4327
  bigendian = bfd_big_endian (stdoutput);
4328
4329
  aux_out = (union aux_ext *) (*buf + offset);
4330
4331
  iaux = 0;
4332
4333
  /* The aux entries are stored by file.  */
4334
  for (file_link = file_desc.first;
4335
       file_link != (vlinks_t *) NULL;
4336
       file_link = file_link->next)
4337
    {
4338
      int fil_cnt;
4339
      efdr_t *fil_ptr;
4340
      efdr_t *fil_end;
4341
4342
      if (file_link->next == (vlinks_t *) NULL)
4343
  fil_cnt = file_desc.objects_last_page;
4344
      else
4345
  fil_cnt = file_desc.objects_per_page;
4346
      fil_ptr = file_link->datum->file;
4347
      fil_end = fil_ptr + fil_cnt;
4348
      for (; fil_ptr < fil_end; fil_ptr++)
4349
  {
4350
    vlinks_t *aux_link;
4351
4352
    fil_ptr->fdr.fBigendian = bigendian;
4353
    fil_ptr->fdr.iauxBase = iaux;
4354
    for (aux_link = fil_ptr->aux_syms.first;
4355
         aux_link != (vlinks_t *) NULL;
4356
         aux_link = aux_link->next)
4357
      {
4358
        int aux_cnt;
4359
        aux_t *aux_ptr;
4360
        aux_t *aux_end;
4361
4362
        if (aux_link->next == (vlinks_t *) NULL)
4363
    aux_cnt = fil_ptr->aux_syms.objects_last_page;
4364
        else
4365
    aux_cnt = fil_ptr->aux_syms.objects_per_page;
4366
        aux_ptr = aux_link->datum->aux;
4367
        aux_end = aux_ptr + aux_cnt;
4368
        for (; aux_ptr < aux_end; aux_ptr++)
4369
    {
4370
      if ((unsigned long) (*bufend - (char *) aux_out)
4371
          < sizeof (union aux_ext))
4372
        aux_out = ((union aux_ext *)
4373
             ecoff_add_bytes (buf, bufend,
4374
            (char *) aux_out,
4375
            sizeof (union aux_ext)));
4376
      switch (aux_ptr->type)
4377
        {
4378
        case aux_tir:
4379
          (*backend->swap_tir_out) (bigendian,
4380
            &aux_ptr->data.ti,
4381
            &aux_out->a_ti);
4382
          break;
4383
        case aux_rndx:
4384
          (*backend->swap_rndx_out) (bigendian,
4385
             &aux_ptr->data.rndx,
4386
             &aux_out->a_rndx);
4387
          break;
4388
        case aux_dnLow:
4389
          AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4390
             aux_out);
4391
          break;
4392
        case aux_dnHigh:
4393
          AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4394
              aux_out);
4395
          break;
4396
        case aux_isym:
4397
          AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4398
            aux_out);
4399
          break;
4400
        case aux_iss:
4401
          AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4402
           aux_out);
4403
          break;
4404
        case aux_width:
4405
          AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4406
             aux_out);
4407
          break;
4408
        case aux_count:
4409
          AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4410
             aux_out);
4411
          break;
4412
        }
4413
4414
      ++aux_out;
4415
      ++iaux;
4416
    }
4417
      }
4418
    fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4419
  }
4420
    }
4421
4422
  return ecoff_padding_adjust (backend, buf, bufend,
4423
             offset + iaux * sizeof (union aux_ext),
4424
             (char **) NULL);
4425
}
4426
4427
/* Copy out the strings from a varray_t.  This returns the number of
4428
   bytes copied, rather than the new offset.  */
4429
4430
static unsigned long
4431
ecoff_build_strings (char **buf,
4432
         char **bufend,
4433
         unsigned long offset,
4434
         varray_t *vp)
4435
{
4436
  unsigned long istr;
4437
  char *str_out;
4438
  vlinks_t *str_link;
4439
4440
  str_out = *buf + offset;
4441
4442
  istr = 0;
4443
4444
  for (str_link = vp->first;
4445
       str_link != (vlinks_t *) NULL;
4446
       str_link = str_link->next)
4447
    {
4448
      unsigned long str_cnt;
4449
4450
      if (str_link->next == (vlinks_t *) NULL)
4451
  str_cnt = vp->objects_last_page;
4452
      else
4453
  str_cnt = vp->objects_per_page;
4454
4455
      if ((unsigned long)(*bufend - str_out) < str_cnt)
4456
  str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4457
4458
      memcpy (str_out, str_link->datum->byte, str_cnt);
4459
      str_out += str_cnt;
4460
      istr += str_cnt;
4461
    }
4462
4463
  return istr;
4464
}
4465
4466
/* Dump out the local strings.  */
4467
4468
static unsigned long
4469
ecoff_build_ss (const struct ecoff_debug_swap *backend,
4470
    char **buf,
4471
    char **bufend,
4472
    unsigned long offset)
4473
{
4474
  long iss;
4475
  vlinks_t *file_link;
4476
4477
  iss = 0;
4478
4479
  for (file_link = file_desc.first;
4480
       file_link != (vlinks_t *) NULL;
4481
       file_link = file_link->next)
4482
    {
4483
      int fil_cnt;
4484
      efdr_t *fil_ptr;
4485
      efdr_t *fil_end;
4486
4487
      if (file_link->next == (vlinks_t *) NULL)
4488
  fil_cnt = file_desc.objects_last_page;
4489
      else
4490
  fil_cnt = file_desc.objects_per_page;
4491
      fil_ptr = file_link->datum->file;
4492
      fil_end = fil_ptr + fil_cnt;
4493
      for (; fil_ptr < fil_end; fil_ptr++)
4494
  {
4495
    long ss_cnt;
4496
4497
    fil_ptr->fdr.issBase = iss;
4498
    ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4499
          &fil_ptr->strings);
4500
    fil_ptr->fdr.cbSs = ss_cnt;
4501
    iss += ss_cnt;
4502
  }
4503
    }
4504
4505
  return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4506
             (char **) NULL);
4507
}
4508
4509
/* Swap out the file descriptors.  */
4510
4511
static unsigned long
4512
ecoff_build_fdr (const struct ecoff_debug_swap *backend,
4513
     char **buf,
4514
     char **bufend,
4515
     unsigned long offset)
4516
{
4517
  const bfd_size_type external_fdr_size = backend->external_fdr_size;
4518
  void (* const swap_fdr_out) (bfd *, const FDR *, void *)
4519
    = backend->swap_fdr_out;
4520
  long ifile;
4521
  char *fdr_out;
4522
  vlinks_t *file_link;
4523
4524
  ifile = 0;
4525
4526
  fdr_out = *buf + offset;
4527
4528
  for (file_link = file_desc.first;
4529
       file_link != (vlinks_t *) NULL;
4530
       file_link = file_link->next)
4531
    {
4532
      int fil_cnt;
4533
      efdr_t *fil_ptr;
4534
      efdr_t *fil_end;
4535
4536
      if (file_link->next == (vlinks_t *) NULL)
4537
  fil_cnt = file_desc.objects_last_page;
4538
      else
4539
  fil_cnt = file_desc.objects_per_page;
4540
      fil_ptr = file_link->datum->file;
4541
      fil_end = fil_ptr + fil_cnt;
4542
      for (; fil_ptr < fil_end; fil_ptr++)
4543
  {
4544
    if ((bfd_size_type)(*bufend - fdr_out) < external_fdr_size)
4545
      fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4546
               external_fdr_size);
4547
    (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4548
    fdr_out += external_fdr_size;
4549
    ++ifile;
4550
  }
4551
    }
4552
4553
  return offset + ifile * external_fdr_size;
4554
}
4555
4556
/* Set up the external symbols.  These are supposed to be handled by
4557
   the backend.  This routine just gets the right information and
4558
   calls a backend function to deal with it.  */
4559
4560
static void
4561
ecoff_setup_ext (void)
4562
{
4563
  symbolS *sym;
4564
4565
  for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4566
    {
4567
      if (symbol_get_obj (sym)->ecoff_symbol == NULL)
4568
  continue;
4569
4570
      /* If this is a local symbol, then force the fields to zero.  */
4571
      if (! S_IS_EXTERNAL (sym)
4572
    && ! S_IS_WEAK (sym)
4573
    && S_IS_DEFINED (sym))
4574
  {
4575
    struct localsym *lsym;
4576
4577
    lsym = symbol_get_obj (sym)->ecoff_symbol;
4578
    lsym->ecoff_sym.asym.value = 0;
4579
    lsym->ecoff_sym.asym.st = (int) st_Nil;
4580
    lsym->ecoff_sym.asym.sc = (int) sc_Nil;
4581
    lsym->ecoff_sym.asym.index = indexNil;
4582
  }
4583
4584
      obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym);
4585
    }
4586
}
4587
4588
/* Build the ECOFF debugging information.  */
4589
4590
unsigned long
4591
ecoff_build_debug (HDRR *hdr,
4592
       char **bufp,
4593
       const struct ecoff_debug_swap *backend)
4594
{
4595
  const bfd_size_type external_pdr_size = backend->external_pdr_size;
4596
  tag_t *ptag;
4597
  tag_t *ptag_next;
4598
  efdr_t *fil_ptr;
4599
  int end_warning;
4600
  efdr_t *hold_file_ptr;
4601
  proc_t *hold_proc_ptr;
4602
  symbolS *sym;
4603
  char *buf;
4604
  char *bufend;
4605
  unsigned long offset;
4606
4607
  /* Make sure we have a file.  */
4608
  if (first_file == (efdr_t *) NULL)
4609
    add_file ((const char *) NULL, 0, 1);
4610
4611
  /* Handle any top level tags.  */
4612
  for (ptag = top_tag_head->first_tag;
4613
       ptag != (tag_t *) NULL;
4614
       ptag = ptag_next)
4615
    {
4616
      if (ptag->forward_ref != (forward_t *) NULL)
4617
  add_unknown_tag (ptag);
4618
4619
      ptag_next = ptag->same_block;
4620
      ptag->hash_ptr->tag_ptr = ptag->same_name;
4621
      free_tag (ptag);
4622
    }
4623
4624
  free_thead (top_tag_head);
4625
4626
  /* Look through the symbols.  Add debugging information for each
4627
     symbol that has not already received it.  */
4628
  hold_file_ptr = cur_file_ptr;
4629
  hold_proc_ptr = cur_proc_ptr;
4630
  cur_proc_ptr = (proc_t *) NULL;
4631
  for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4632
    {
4633
      if (symbol_get_obj (sym)->ecoff_symbol != NULL
4634
    || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL
4635
    || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0)
4636
  continue;
4637
4638
      cur_file_ptr = symbol_get_obj (sym)->ecoff_file;
4639
      add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4640
      (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4641
    }
4642
  cur_proc_ptr = hold_proc_ptr;
4643
  cur_file_ptr = hold_file_ptr;
4644
4645
  /* Output an ending symbol for all the files.  We have to do this
4646
     here for the last file, so we may as well do it for all of the
4647
     files.  */
4648
  end_warning = 0;
4649
  for (fil_ptr = first_file;
4650
       fil_ptr != (efdr_t *) NULL;
4651
       fil_ptr = fil_ptr->next_file)
4652
    {
4653
      cur_file_ptr = fil_ptr;
4654
      while (cur_file_ptr->cur_scope != (scope_t *) NULL
4655
       && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4656
  {
4657
    cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4658
    if (! end_warning && ! cur_file_ptr->fake)
4659
      {
4660
        as_warn (_("missing .end or .bend at end of file"));
4661
        end_warning = 1;
4662
      }
4663
  }
4664
      if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4665
  (void) add_ecoff_symbol ((const char *) NULL,
4666
         st_End, sc_Text,
4667
         (symbolS *) NULL,
4668
         (bfd_vma) 0,
4669
         (symint_t) 0,
4670
         (symint_t) 0);
4671
    }
4672
4673
  /* Build the symbolic information.  */
4674
  offset = 0;
4675
  buf = XNEWVEC (char, PAGE_SIZE);
4676
  bufend = buf + PAGE_SIZE;
4677
4678
  /* Build the line number information.  */
4679
  hdr->cbLineOffset = offset;
4680
  offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4681
             &hdr->ilineMax);
4682
  hdr->cbLine = offset - hdr->cbLineOffset;
4683
4684
  /* We don't use dense numbers at all.  */
4685
  hdr->idnMax = 0;
4686
  hdr->cbDnOffset = 0;
4687
4688
  /* We can't build the PDR table until we have built the symbols,
4689
     because a PDR contains a symbol index.  However, we set aside
4690
     space at this point.  */
4691
  hdr->ipdMax = proc_cnt;
4692
  hdr->cbPdOffset = offset;
4693
  if ((bfd_size_type)(bufend - (buf + offset)) < proc_cnt * external_pdr_size)
4694
    (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4695
          proc_cnt * external_pdr_size);
4696
  offset += proc_cnt * external_pdr_size;
4697
4698
  /* Build the local symbols.  */
4699
  hdr->cbSymOffset = offset;
4700
  offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4701
  hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4702
4703
  /* Building the symbols initializes the symbol index in the PDR's.
4704
     Now we can swap out the PDR's.  */
4705
  (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4706
4707
  /* We don't use optimization symbols.  */
4708
  hdr->ioptMax = 0;
4709
  hdr->cbOptOffset = 0;
4710
4711
  /* Swap out the auxiliary type information.  */
4712
  hdr->cbAuxOffset = offset;
4713
  offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4714
  hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4715
4716
  /* Copy out the local strings.  */
4717
  hdr->cbSsOffset = offset;
4718
  offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4719
  hdr->issMax = offset - hdr->cbSsOffset;
4720
4721
  /* We don't use relative file descriptors.  */
4722
  hdr->crfd = 0;
4723
  hdr->cbRfdOffset = 0;
4724
4725
  /* Swap out the file descriptors.  */
4726
  hdr->cbFdOffset = offset;
4727
  offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4728
  hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4729
4730
  /* Set up the external symbols, which are handled by the BFD back
4731
     end.  */
4732
  hdr->issExtMax = 0;
4733
  hdr->cbSsExtOffset = 0;
4734
  hdr->iextMax = 0;
4735
  hdr->cbExtOffset = 0;
4736
  ecoff_setup_ext ();
4737
4738
  know ((offset & (backend->debug_align - 1)) == 0);
4739
4740
  /* FIXME: This value should be determined from the .verstamp directive,
4741
     with reasonable defaults in config files.  */
4742
#ifdef TC_ALPHA
4743
  hdr->vstamp = 0x030b;
4744
#else
4745
  hdr->vstamp = 0x020b;
4746
#endif
4747
4748
  *bufp = buf;
4749
  return offset;
4750
}
4751

4752
/* Allocate a cluster of pages.  */
4753
4754
#ifndef MALLOC_CHECK
4755
4756
static page_type *
4757
allocate_cluster (unsigned long npages)
4758
{
4759
  page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE);
4760
4761
#ifdef ECOFF_DEBUG
4762
  if (debug > 3)
4763
    fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4764
#endif
4765
4766
  memset (value, 0, npages * PAGE_USIZE);
4767
4768
  return value;
4769
}
4770
4771
static page_type *cluster_ptr = NULL;
4772
static unsigned long pages_left = 0;
4773
4774
#endif /* MALLOC_CHECK */
4775
4776
/* Allocate one page (which is initialized to 0).  */
4777
4778
static page_type *
4779
allocate_page (void)
4780
{
4781
#ifndef MALLOC_CHECK
4782
4783
  if (pages_left == 0)
4784
    {
4785
      pages_left = MAX_CLUSTER_PAGES;
4786
      cluster_ptr = allocate_cluster (pages_left);
4787
    }
4788
4789
  pages_left--;
4790
  return cluster_ptr++;
4791
4792
#else /* MALLOC_CHECK */
4793
4794
  page_type *ptr;
4795
4796
  ptr = xmalloc (PAGE_USIZE);
4797
  memset (ptr, 0, PAGE_USIZE);
4798
  return ptr;
4799
4800
#endif /* MALLOC_CHECK */
4801
}
4802

4803
/* Allocate scoping information.  */
4804
4805
static scope_t *
4806
allocate_scope (void)
4807
{
4808
  scope_t *ptr;
4809
4810
#ifndef MALLOC_CHECK
4811
4812
  ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4813
  if (ptr != (scope_t *) NULL)
4814
    alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free;
4815
  else
4816
    {
4817
      int unallocated = alloc_counts[(int) alloc_type_scope].unallocated;
4818
      page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page;
4819
4820
      if (unallocated == 0)
4821
  {
4822
    unallocated = PAGE_SIZE / sizeof (scope_t);
4823
    alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page ();
4824
    alloc_counts[(int) alloc_type_scope].total_pages++;
4825
  }
4826
4827
      ptr = &cur_page->scope[--unallocated];
4828
      alloc_counts[(int) alloc_type_scope].unallocated = unallocated;
4829
    }
4830
4831
#else
4832
4833
  ptr = XNEW (scope_t);
4834
4835
#endif
4836
4837
  alloc_counts[(int) alloc_type_scope].total_alloc++;
4838
  memset (ptr, 0, sizeof (*ptr));
4839
  return ptr;
4840
}
4841
4842
/* Free scoping information.  */
4843
4844
static void
4845
free_scope (scope_t *ptr)
4846
{
4847
  alloc_counts[(int) alloc_type_scope].total_free++;
4848
4849
#ifndef MALLOC_CHECK
4850
  ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4851
  alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr;
4852
#else
4853
  free ((void *) ptr);
4854
#endif
4855
}
4856

4857
/* Allocate links for pages in a virtual array.  */
4858
4859
static vlinks_t *
4860
allocate_vlinks (void)
4861
{
4862
  vlinks_t *ptr;
4863
4864
#ifndef MALLOC_CHECK
4865
4866
  int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated;
4867
  page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page;
4868
4869
  if (unallocated == 0)
4870
    {
4871
      unallocated = PAGE_SIZE / sizeof (vlinks_t);
4872
      alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4873
      alloc_counts[(int) alloc_type_vlinks].total_pages++;
4874
    }
4875
4876
  ptr = &cur_page->vlinks[--unallocated];
4877
  alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated;
4878
4879
#else
4880
4881
  ptr = XNEW (vlinks_t);
4882
4883
#endif
4884
4885
  alloc_counts[(int) alloc_type_vlinks].total_alloc++;
4886
  memset (ptr, 0, sizeof (*ptr));
4887
  return ptr;
4888
}
4889

4890
/* Allocate string hash buckets.  */
4891
4892
static shash_t *
4893
allocate_shash (void)
4894
{
4895
  shash_t *ptr;
4896
4897
#ifndef MALLOC_CHECK
4898
4899
  int unallocated = alloc_counts[(int) alloc_type_shash].unallocated;
4900
  page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page;
4901
4902
  if (unallocated == 0)
4903
    {
4904
      unallocated = PAGE_SIZE / sizeof (shash_t);
4905
      alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page ();
4906
      alloc_counts[(int) alloc_type_shash].total_pages++;
4907
    }
4908
4909
  ptr = &cur_page->shash[--unallocated];
4910
  alloc_counts[(int) alloc_type_shash].unallocated = unallocated;
4911
4912
#else
4913
4914
  ptr = XNEW (shash_t);
4915
4916
#endif
4917
4918
  alloc_counts[(int) alloc_type_shash].total_alloc++;
4919
  memset (ptr, 0, sizeof (*ptr));
4920
  return ptr;
4921
}
4922

4923
/* Allocate type hash buckets.  */
4924
4925
static thash_t *
4926
allocate_thash (void)
4927
{
4928
  thash_t *ptr;
4929
4930
#ifndef MALLOC_CHECK
4931
4932
  int unallocated = alloc_counts[(int) alloc_type_thash].unallocated;
4933
  page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page;
4934
4935
  if (unallocated == 0)
4936
    {
4937
      unallocated = PAGE_SIZE / sizeof (thash_t);
4938
      alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page ();
4939
      alloc_counts[(int) alloc_type_thash].total_pages++;
4940
    }
4941
4942
  ptr = &cur_page->thash[--unallocated];
4943
  alloc_counts[(int) alloc_type_thash].unallocated = unallocated;
4944
4945
#else
4946
4947
  ptr = XNEW (thash_t);
4948
4949
#endif
4950
4951
  alloc_counts[(int) alloc_type_thash].total_alloc++;
4952
  memset (ptr, 0, sizeof (*ptr));
4953
  return ptr;
4954
}
4955

4956
/* Allocate structure, union, or enum tag information.  */
4957
4958
static tag_t *
4959
allocate_tag (void)
4960
{
4961
  tag_t *ptr;
4962
4963
#ifndef MALLOC_CHECK
4964
4965
  ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
4966
  if (ptr != (tag_t *) NULL)
4967
    alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free;
4968
  else
4969
    {
4970
      int unallocated = alloc_counts[(int) alloc_type_tag].unallocated;
4971
      page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page;
4972
4973
      if (unallocated == 0)
4974
  {
4975
    unallocated = PAGE_SIZE / sizeof (tag_t);
4976
    alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page ();
4977
    alloc_counts[(int) alloc_type_tag].total_pages++;
4978
  }
4979
4980
      ptr = &cur_page->tag[--unallocated];
4981
      alloc_counts[(int) alloc_type_tag].unallocated = unallocated;
4982
    }
4983
4984
#else
4985
4986
  ptr = XNEW (tag_t);
4987
4988
#endif
4989
4990
  alloc_counts[(int) alloc_type_tag].total_alloc++;
4991
  memset (ptr, 0, sizeof (*ptr));
4992
  return ptr;
4993
}
4994
4995
/* Free scoping information.  */
4996
4997
static void
4998
free_tag (tag_t *ptr)
4999
{
5000
  alloc_counts[(int) alloc_type_tag].total_free++;
5001
5002
#ifndef MALLOC_CHECK
5003
  ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
5004
  alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr;
5005
#else
5006
  free ((PTR_T) ptr);
5007
#endif
5008
}
5009

5010
/* Allocate forward reference to a yet unknown tag.  */
5011
5012
static forward_t *
5013
allocate_forward (void)
5014
{
5015
  forward_t *ptr;
5016
5017
#ifndef MALLOC_CHECK
5018
5019
  int unallocated = alloc_counts[(int) alloc_type_forward].unallocated;
5020
  page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page;
5021
5022
  if (unallocated == 0)
5023
    {
5024
      unallocated = PAGE_SIZE / sizeof (forward_t);
5025
      alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page ();
5026
      alloc_counts[(int) alloc_type_forward].total_pages++;
5027
    }
5028
5029
  ptr = &cur_page->forward[--unallocated];
5030
  alloc_counts[(int) alloc_type_forward].unallocated = unallocated;
5031
5032
#else
5033
5034
  ptr = XNEW (forward_t);
5035
5036
#endif
5037
5038
  alloc_counts[(int) alloc_type_forward].total_alloc++;
5039
  memset (ptr, 0, sizeof (*ptr));
5040
  return ptr;
5041
}
5042

5043
/* Allocate head of type hash list.  */
5044
5045
static thead_t *
5046
allocate_thead (void)
5047
{
5048
  thead_t *ptr;
5049
5050
#ifndef MALLOC_CHECK
5051
5052
  ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5053
  if (ptr != (thead_t *) NULL)
5054
    alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free;
5055
  else
5056
    {
5057
      int unallocated = alloc_counts[(int) alloc_type_thead].unallocated;
5058
      page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page;
5059
5060
      if (unallocated == 0)
5061
  {
5062
    unallocated = PAGE_SIZE / sizeof (thead_t);
5063
    alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page ();
5064
    alloc_counts[(int) alloc_type_thead].total_pages++;
5065
  }
5066
5067
      ptr = &cur_page->thead[--unallocated];
5068
      alloc_counts[(int) alloc_type_thead].unallocated = unallocated;
5069
    }
5070
5071
#else
5072
5073
  ptr = XNEW (thead_t);
5074
5075
#endif
5076
5077
  alloc_counts[(int) alloc_type_thead].total_alloc++;
5078
  memset (ptr, 0, sizeof (*ptr));
5079
  return ptr;
5080
}
5081
5082
/* Free scoping information.  */
5083
5084
static void
5085
free_thead (thead_t *ptr)
5086
{
5087
  alloc_counts[(int) alloc_type_thead].total_free++;
5088
5089
#ifndef MALLOC_CHECK
5090
  ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5091
  alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr;
5092
#else
5093
  free ((PTR_T) ptr);
5094
#endif
5095
}
5096

5097
static lineno_list_t *
5098
allocate_lineno_list (void)
5099
{
5100
  lineno_list_t *ptr;
5101
5102
#ifndef MALLOC_CHECK
5103
5104
  int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated;
5105
  page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page;
5106
5107
  if (unallocated == 0)
5108
    {
5109
      unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5110
      alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page ();
5111
      alloc_counts[(int) alloc_type_lineno].total_pages++;
5112
    }
5113
5114
  ptr = &cur_page->lineno[--unallocated];
5115
  alloc_counts[(int) alloc_type_lineno].unallocated = unallocated;
5116
5117
#else
5118
5119
  ptr = XNEW (lineno_list_t);
5120
5121
#endif
5122
5123
  alloc_counts[(int) alloc_type_lineno].total_alloc++;
5124
  memset (ptr, 0, sizeof (*ptr));
5125
  return ptr;
5126
}
5127
5128
void
5129
ecoff_set_gp_prolog_size (int sz)
5130
{
5131
  if (cur_proc_ptr == 0)
5132
    return;
5133
5134
  cur_proc_ptr->pdr.gp_prologue = sz;
5135
  if (cur_proc_ptr->pdr.gp_prologue != sz)
5136
    {
5137
      as_warn (_("GP prologue size exceeds field size, using 0 instead"));
5138
      cur_proc_ptr->pdr.gp_prologue = 0;
5139
    }
5140
5141
  cur_proc_ptr->pdr.gp_used = 1;
5142
}
5143
5144
int
5145
ecoff_no_current_file (void)
5146
{
5147
  return cur_file_ptr == (efdr_t *) NULL;
5148
}
5149
5150
void
5151
ecoff_generate_asm_lineno (void)
5152
{
5153
  unsigned int lineno;
5154
  const char *filename;
5155
  lineno_list_t *list;
5156
5157
  filename = as_where (&lineno);
5158
5159
  if (current_stabs_filename == (char *) NULL
5160
      || filename_cmp (current_stabs_filename, filename))
5161
    add_file (filename, 0, 1);
5162
5163
  list = allocate_lineno_list ();
5164
5165
  list->next = (lineno_list_t *) NULL;
5166
  list->file = cur_file_ptr;
5167
  list->proc = cur_proc_ptr;
5168
  list->frag = frag_now;
5169
  list->paddr = frag_now_fix ();
5170
  list->lineno = lineno;
5171
5172
  /* We don't want to merge files which have line numbers.  */
5173
  cur_file_ptr->fdr.fMerge = 0;
5174
5175
  /* A .loc directive will sometimes appear before a .ent directive,
5176
     which means that cur_proc_ptr will be NULL here.  Arrange to
5177
     patch this up.  */
5178
  if (cur_proc_ptr == (proc_t *) NULL)
5179
    {
5180
      lineno_list_t **pl;
5181
5182
      pl = &noproc_lineno;
5183
      while (*pl != (lineno_list_t *) NULL)
5184
  pl = &(*pl)->next;
5185
      *pl = list;
5186
    }
5187
  else
5188
    {
5189
      last_lineno = list;
5190
      *last_lineno_ptr = list;
5191
      last_lineno_ptr = &list->next;
5192
    }
5193
}
5194
5195
#else
5196
5197
void
5198
ecoff_generate_asm_lineno (void)
5199
0
{
5200
0
}
5201
5202
#endif /* ECOFF_DEBUGGING */