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1 | | //===- llvm/Support/LEB128.h - [SU]LEB128 utility functions -----*- C++ -*-===// |
2 | | // |
3 | | // The LLVM Compiler Infrastructure |
4 | | // |
5 | | // This file is distributed under the University of Illinois Open Source |
6 | | // License. See LICENSE.TXT for details. |
7 | | // |
8 | | //===----------------------------------------------------------------------===// |
9 | | // |
10 | | // This file declares some utility functions for encoding SLEB128 and |
11 | | // ULEB128 values. |
12 | | // |
13 | | //===----------------------------------------------------------------------===// |
14 | | |
15 | | /* Capstone Disassembly Engine */ |
16 | | /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */ |
17 | | |
18 | | #ifndef CS_LLVM_SUPPORT_LEB128_H |
19 | | #define CS_LLVM_SUPPORT_LEB128_H |
20 | | |
21 | | #include "include/capstone/capstone.h" |
22 | | |
23 | | /// Utility function to decode a ULEB128 value. |
24 | | static inline uint64_t decodeULEB128(const uint8_t *p, unsigned *n) |
25 | 40.5M | { |
26 | 40.5M | const uint8_t *orig_p = p; |
27 | 40.5M | uint64_t Value = 0; |
28 | 40.5M | unsigned Shift = 0; |
29 | 45.7M | do { |
30 | 45.7M | Value += (uint64_t)(*p & 0x7f) << Shift; |
31 | 45.7M | Shift += 7; |
32 | 45.7M | } while (*p++ >= 128); |
33 | 40.5M | if (n) |
34 | 40.5M | *n = (unsigned)(p - orig_p); |
35 | 40.5M | return Value; |
36 | 40.5M | } ARMDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 16.8M | { | 26 | 16.8M | const uint8_t *orig_p = p; | 27 | 16.8M | uint64_t Value = 0; | 28 | 16.8M | unsigned Shift = 0; | 29 | 18.6M | do { | 30 | 18.6M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 18.6M | Shift += 7; | 32 | 18.6M | } while (*p++ >= 128); | 33 | 16.8M | if (n) | 34 | 16.8M | *n = (unsigned)(p - orig_p); | 35 | 16.8M | return Value; | 36 | 16.8M | } |
AArch64Disassembler.c:decodeULEB128 Line | Count | Source | 25 | 6.19M | { | 26 | 6.19M | const uint8_t *orig_p = p; | 27 | 6.19M | uint64_t Value = 0; | 28 | 6.19M | unsigned Shift = 0; | 29 | 6.81M | do { | 30 | 6.81M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 6.81M | Shift += 7; | 32 | 6.81M | } while (*p++ >= 128); | 33 | 6.19M | if (n) | 34 | 6.19M | *n = (unsigned)(p - orig_p); | 35 | 6.19M | return Value; | 36 | 6.19M | } |
MipsDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 2.90M | { | 26 | 2.90M | const uint8_t *orig_p = p; | 27 | 2.90M | uint64_t Value = 0; | 28 | 2.90M | unsigned Shift = 0; | 29 | 3.03M | do { | 30 | 3.03M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.03M | Shift += 7; | 32 | 3.03M | } while (*p++ >= 128); | 33 | 2.90M | if (n) | 34 | 2.90M | *n = (unsigned)(p - orig_p); | 35 | 2.90M | return Value; | 36 | 2.90M | } |
PPCDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 3.67M | { | 26 | 3.67M | const uint8_t *orig_p = p; | 27 | 3.67M | uint64_t Value = 0; | 28 | 3.67M | unsigned Shift = 0; | 29 | 3.82M | do { | 30 | 3.82M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.82M | Shift += 7; | 32 | 3.82M | } while (*p++ >= 128); | 33 | 3.67M | if (n) | 34 | 3.67M | *n = (unsigned)(p - orig_p); | 35 | 3.67M | return Value; | 36 | 3.67M | } |
SparcDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 1.55M | { | 26 | 1.55M | const uint8_t *orig_p = p; | 27 | 1.55M | uint64_t Value = 0; | 28 | 1.55M | unsigned Shift = 0; | 29 | 1.60M | do { | 30 | 1.60M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 1.60M | Shift += 7; | 32 | 1.60M | } while (*p++ >= 128); | 33 | 1.55M | if (n) | 34 | 1.55M | *n = (unsigned)(p - orig_p); | 35 | 1.55M | return Value; | 36 | 1.55M | } |
SystemZDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 5.91M | { | 26 | 5.91M | const uint8_t *orig_p = p; | 27 | 5.91M | uint64_t Value = 0; | 28 | 5.91M | unsigned Shift = 0; | 29 | 8.24M | do { | 30 | 8.24M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 8.24M | Shift += 7; | 32 | 8.24M | } while (*p++ >= 128); | 33 | 5.91M | if (n) | 34 | 5.91M | *n = (unsigned)(p - orig_p); | 35 | 5.91M | return Value; | 36 | 5.91M | } |
XCoreDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 499k | { | 26 | 499k | const uint8_t *orig_p = p; | 27 | 499k | uint64_t Value = 0; | 28 | 499k | unsigned Shift = 0; | 29 | 548k | do { | 30 | 548k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 548k | Shift += 7; | 32 | 548k | } while (*p++ >= 128); | 33 | 499k | if (n) | 34 | 499k | *n = (unsigned)(p - orig_p); | 35 | 499k | return Value; | 36 | 499k | } |
TMS320C64xDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 735k | { | 26 | 735k | const uint8_t *orig_p = p; | 27 | 735k | uint64_t Value = 0; | 28 | 735k | unsigned Shift = 0; | 29 | 752k | do { | 30 | 752k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 752k | Shift += 7; | 32 | 752k | } while (*p++ >= 128); | 33 | 735k | if (n) | 34 | 735k | *n = (unsigned)(p - orig_p); | 35 | 735k | return Value; | 36 | 735k | } |
RISCVDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 2.19M | { | 26 | 2.19M | const uint8_t *orig_p = p; | 27 | 2.19M | uint64_t Value = 0; | 28 | 2.19M | unsigned Shift = 0; | 29 | 2.28M | do { | 30 | 2.28M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 2.28M | Shift += 7; | 32 | 2.28M | } while (*p++ >= 128); | 33 | 2.19M | if (n) | 34 | 2.19M | *n = (unsigned)(p - orig_p); | 35 | 2.19M | return Value; | 36 | 2.19M | } |
Unexecuted instantiation: TriCoreDisassembler.c:decodeULEB128 |
37 | | |
38 | | #endif // LLVM_SYSTEM_LEB128_H |