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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 | 18.1M | { |
26 | 18.1M | const uint8_t *orig_p = p; |
27 | 18.1M | uint64_t Value = 0; |
28 | 18.1M | unsigned Shift = 0; |
29 | 20.3M | do { |
30 | 20.3M | Value += (uint64_t)(*p & 0x7f) << Shift; |
31 | 20.3M | Shift += 7; |
32 | 20.3M | } while (*p++ >= 128); |
33 | 18.1M | if (n) |
34 | 18.1M | *n = (unsigned)(p - orig_p); |
35 | 18.1M | return Value; |
36 | 18.1M | } ARMDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 6.27M | { | 26 | 6.27M | const uint8_t *orig_p = p; | 27 | 6.27M | uint64_t Value = 0; | 28 | 6.27M | unsigned Shift = 0; | 29 | 6.94M | do { | 30 | 6.94M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 6.94M | Shift += 7; | 32 | 6.94M | } while (*p++ >= 128); | 33 | 6.27M | if (n) | 34 | 6.27M | *n = (unsigned)(p - orig_p); | 35 | 6.27M | return Value; | 36 | 6.27M | } |
AArch64Disassembler.c:decodeULEB128 Line | Count | Source | 25 | 3.40M | { | 26 | 3.40M | const uint8_t *orig_p = p; | 27 | 3.40M | uint64_t Value = 0; | 28 | 3.40M | unsigned Shift = 0; | 29 | 3.73M | do { | 30 | 3.73M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.73M | Shift += 7; | 32 | 3.73M | } while (*p++ >= 128); | 33 | 3.40M | if (n) | 34 | 3.40M | *n = (unsigned)(p - orig_p); | 35 | 3.40M | return Value; | 36 | 3.40M | } |
MipsDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 1.25M | { | 26 | 1.25M | const uint8_t *orig_p = p; | 27 | 1.25M | uint64_t Value = 0; | 28 | 1.25M | unsigned Shift = 0; | 29 | 1.29M | do { | 30 | 1.29M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 1.29M | Shift += 7; | 32 | 1.29M | } while (*p++ >= 128); | 33 | 1.25M | if (n) | 34 | 1.25M | *n = (unsigned)(p - orig_p); | 35 | 1.25M | return Value; | 36 | 1.25M | } |
PPCDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 2.17M | { | 26 | 2.17M | const uint8_t *orig_p = p; | 27 | 2.17M | uint64_t Value = 0; | 28 | 2.17M | unsigned Shift = 0; | 29 | 2.27M | do { | 30 | 2.27M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 2.27M | Shift += 7; | 32 | 2.27M | } while (*p++ >= 128); | 33 | 2.17M | if (n) | 34 | 2.17M | *n = (unsigned)(p - orig_p); | 35 | 2.17M | return Value; | 36 | 2.17M | } |
SparcDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 776k | { | 26 | 776k | const uint8_t *orig_p = p; | 27 | 776k | uint64_t Value = 0; | 28 | 776k | unsigned Shift = 0; | 29 | 795k | do { | 30 | 795k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 795k | Shift += 7; | 32 | 795k | } while (*p++ >= 128); | 33 | 776k | if (n) | 34 | 776k | *n = (unsigned)(p - orig_p); | 35 | 776k | return Value; | 36 | 776k | } |
SystemZDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 2.43M | { | 26 | 2.43M | const uint8_t *orig_p = p; | 27 | 2.43M | uint64_t Value = 0; | 28 | 2.43M | unsigned Shift = 0; | 29 | 3.38M | do { | 30 | 3.38M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.38M | Shift += 7; | 32 | 3.38M | } while (*p++ >= 128); | 33 | 2.43M | if (n) | 34 | 2.43M | *n = (unsigned)(p - orig_p); | 35 | 2.43M | return Value; | 36 | 2.43M | } |
XCoreDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 188k | { | 26 | 188k | const uint8_t *orig_p = p; | 27 | 188k | uint64_t Value = 0; | 28 | 188k | unsigned Shift = 0; | 29 | 209k | do { | 30 | 209k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 209k | Shift += 7; | 32 | 209k | } while (*p++ >= 128); | 33 | 188k | if (n) | 34 | 188k | *n = (unsigned)(p - orig_p); | 35 | 188k | return Value; | 36 | 188k | } |
TMS320C64xDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 378k | { | 26 | 378k | const uint8_t *orig_p = p; | 27 | 378k | uint64_t Value = 0; | 28 | 378k | unsigned Shift = 0; | 29 | 386k | do { | 30 | 386k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 386k | Shift += 7; | 32 | 386k | } while (*p++ >= 128); | 33 | 378k | if (n) | 34 | 378k | *n = (unsigned)(p - orig_p); | 35 | 378k | return Value; | 36 | 378k | } |
RISCVDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 1.27M | { | 26 | 1.27M | const uint8_t *orig_p = p; | 27 | 1.27M | uint64_t Value = 0; | 28 | 1.27M | unsigned Shift = 0; | 29 | 1.33M | do { | 30 | 1.33M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 1.33M | Shift += 7; | 32 | 1.33M | } while (*p++ >= 128); | 33 | 1.27M | if (n) | 34 | 1.27M | *n = (unsigned)(p - orig_p); | 35 | 1.27M | return Value; | 36 | 1.27M | } |
Unexecuted instantiation: TriCoreDisassembler.c:decodeULEB128 |
37 | | |
38 | | #endif // LLVM_SYSTEM_LEB128_H |