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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 | 95.4M | { |
26 | 95.4M | const uint8_t *orig_p = p; |
27 | 95.4M | uint64_t Value = 0; |
28 | 95.4M | unsigned Shift = 0; |
29 | 107M | do { |
30 | 107M | Value += (uint64_t)(*p & 0x7f) << Shift; |
31 | 107M | Shift += 7; |
32 | 107M | } while (*p++ >= 128); |
33 | 95.4M | if (n) |
34 | 95.4M | *n = (unsigned)(p - orig_p); |
35 | 95.4M | return Value; |
36 | 95.4M | } ARMDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 44.5M | { | 26 | 44.5M | const uint8_t *orig_p = p; | 27 | 44.5M | uint64_t Value = 0; | 28 | 44.5M | unsigned Shift = 0; | 29 | 49.4M | do { | 30 | 49.4M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 49.4M | Shift += 7; | 32 | 49.4M | } while (*p++ >= 128); | 33 | 44.5M | if (n) | 34 | 44.5M | *n = (unsigned)(p - orig_p); | 35 | 44.5M | return Value; | 36 | 44.5M | } |
AArch64Disassembler.c:decodeULEB128 Line | Count | Source | 25 | 12.0M | { | 26 | 12.0M | const uint8_t *orig_p = p; | 27 | 12.0M | uint64_t Value = 0; | 28 | 12.0M | unsigned Shift = 0; | 29 | 13.2M | do { | 30 | 13.2M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 13.2M | Shift += 7; | 32 | 13.2M | } while (*p++ >= 128); | 33 | 12.0M | if (n) | 34 | 12.0M | *n = (unsigned)(p - orig_p); | 35 | 12.0M | return Value; | 36 | 12.0M | } |
MipsDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 7.96M | { | 26 | 7.96M | const uint8_t *orig_p = p; | 27 | 7.96M | uint64_t Value = 0; | 28 | 7.96M | unsigned Shift = 0; | 29 | 8.28M | do { | 30 | 8.28M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 8.28M | Shift += 7; | 32 | 8.28M | } while (*p++ >= 128); | 33 | 7.96M | if (n) | 34 | 7.96M | *n = (unsigned)(p - orig_p); | 35 | 7.96M | return Value; | 36 | 7.96M | } |
PPCDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 7.89M | { | 26 | 7.89M | const uint8_t *orig_p = p; | 27 | 7.89M | uint64_t Value = 0; | 28 | 7.89M | unsigned Shift = 0; | 29 | 8.22M | do { | 30 | 8.22M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 8.22M | Shift += 7; | 32 | 8.22M | } while (*p++ >= 128); | 33 | 7.89M | if (n) | 34 | 7.89M | *n = (unsigned)(p - orig_p); | 35 | 7.89M | return Value; | 36 | 7.89M | } |
SparcDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 3.20M | { | 26 | 3.20M | const uint8_t *orig_p = p; | 27 | 3.20M | uint64_t Value = 0; | 28 | 3.20M | unsigned Shift = 0; | 29 | 3.28M | do { | 30 | 3.28M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.28M | Shift += 7; | 32 | 3.28M | } while (*p++ >= 128); | 33 | 3.20M | if (n) | 34 | 3.20M | *n = (unsigned)(p - orig_p); | 35 | 3.20M | return Value; | 36 | 3.20M | } |
SystemZDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 12.4M | { | 26 | 12.4M | const uint8_t *orig_p = p; | 27 | 12.4M | uint64_t Value = 0; | 28 | 12.4M | unsigned Shift = 0; | 29 | 17.3M | do { | 30 | 17.3M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 17.3M | Shift += 7; | 32 | 17.3M | } while (*p++ >= 128); | 33 | 12.4M | if (n) | 34 | 12.4M | *n = (unsigned)(p - orig_p); | 35 | 12.4M | return Value; | 36 | 12.4M | } |
XCoreDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 1.50M | { | 26 | 1.50M | const uint8_t *orig_p = p; | 27 | 1.50M | uint64_t Value = 0; | 28 | 1.50M | unsigned Shift = 0; | 29 | 1.69M | do { | 30 | 1.69M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 1.69M | Shift += 7; | 32 | 1.69M | } while (*p++ >= 128); | 33 | 1.50M | if (n) | 34 | 1.50M | *n = (unsigned)(p - orig_p); | 35 | 1.50M | return Value; | 36 | 1.50M | } |
TMS320C64xDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 1.65M | { | 26 | 1.65M | const uint8_t *orig_p = p; | 27 | 1.65M | uint64_t Value = 0; | 28 | 1.65M | unsigned Shift = 0; | 29 | 1.69M | do { | 30 | 1.69M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 1.69M | Shift += 7; | 32 | 1.69M | } while (*p++ >= 128); | 33 | 1.65M | if (n) | 34 | 1.65M | *n = (unsigned)(p - orig_p); | 35 | 1.65M | return Value; | 36 | 1.65M | } |
RISCVDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 4.10M | { | 26 | 4.10M | const uint8_t *orig_p = p; | 27 | 4.10M | uint64_t Value = 0; | 28 | 4.10M | unsigned Shift = 0; | 29 | 4.28M | do { | 30 | 4.28M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 4.28M | Shift += 7; | 32 | 4.28M | } while (*p++ >= 128); | 33 | 4.10M | if (n) | 34 | 4.10M | *n = (unsigned)(p - orig_p); | 35 | 4.10M | return Value; | 36 | 4.10M | } |
Unexecuted instantiation: TriCoreDisassembler.c:decodeULEB128 |
37 | | |
38 | | #endif // LLVM_SYSTEM_LEB128_H |