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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 | 50.5M | { |
26 | 50.5M | const uint8_t *orig_p = p; |
27 | 50.5M | uint64_t Value = 0; |
28 | 50.5M | unsigned Shift = 0; |
29 | 56.4M | do { |
30 | 56.4M | Value += (uint64_t)(*p & 0x7f) << Shift; |
31 | 56.4M | Shift += 7; |
32 | 56.4M | } while (*p++ >= 128); |
33 | 50.5M | if (n) |
34 | 50.5M | *n = (unsigned)(p - orig_p); |
35 | 50.5M | return Value; |
36 | 50.5M | } ARMDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 20.0M | { | 26 | 20.0M | const uint8_t *orig_p = p; | 27 | 20.0M | uint64_t Value = 0; | 28 | 20.0M | unsigned Shift = 0; | 29 | 22.2M | do { | 30 | 22.2M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 22.2M | Shift += 7; | 32 | 22.2M | } while (*p++ >= 128); | 33 | 20.0M | if (n) | 34 | 20.0M | *n = (unsigned)(p - orig_p); | 35 | 20.0M | return Value; | 36 | 20.0M | } |
AArch64Disassembler.c:decodeULEB128 Line | Count | Source | 25 | 8.79M | { | 26 | 8.79M | const uint8_t *orig_p = p; | 27 | 8.79M | uint64_t Value = 0; | 28 | 8.79M | unsigned Shift = 0; | 29 | 9.63M | do { | 30 | 9.63M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 9.63M | Shift += 7; | 32 | 9.63M | } while (*p++ >= 128); | 33 | 8.79M | if (n) | 34 | 8.79M | *n = (unsigned)(p - orig_p); | 35 | 8.79M | return Value; | 36 | 8.79M | } |
MipsDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 3.41M | { | 26 | 3.41M | const uint8_t *orig_p = p; | 27 | 3.41M | uint64_t Value = 0; | 28 | 3.41M | unsigned Shift = 0; | 29 | 3.53M | do { | 30 | 3.53M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.53M | Shift += 7; | 32 | 3.53M | } while (*p++ >= 128); | 33 | 3.41M | if (n) | 34 | 3.41M | *n = (unsigned)(p - orig_p); | 35 | 3.41M | return Value; | 36 | 3.41M | } |
PPCDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 5.75M | { | 26 | 5.75M | const uint8_t *orig_p = p; | 27 | 5.75M | uint64_t Value = 0; | 28 | 5.75M | unsigned Shift = 0; | 29 | 5.98M | do { | 30 | 5.98M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 5.98M | Shift += 7; | 32 | 5.98M | } while (*p++ >= 128); | 33 | 5.75M | if (n) | 34 | 5.75M | *n = (unsigned)(p - orig_p); | 35 | 5.75M | return Value; | 36 | 5.75M | } |
SparcDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 1.87M | { | 26 | 1.87M | const uint8_t *orig_p = p; | 27 | 1.87M | uint64_t Value = 0; | 28 | 1.87M | unsigned Shift = 0; | 29 | 1.92M | do { | 30 | 1.92M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 1.92M | Shift += 7; | 32 | 1.92M | } while (*p++ >= 128); | 33 | 1.87M | if (n) | 34 | 1.87M | *n = (unsigned)(p - orig_p); | 35 | 1.87M | return Value; | 36 | 1.87M | } |
SystemZDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 5.80M | { | 26 | 5.80M | const uint8_t *orig_p = p; | 27 | 5.80M | uint64_t Value = 0; | 28 | 5.80M | unsigned Shift = 0; | 29 | 8.03M | do { | 30 | 8.03M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 8.03M | Shift += 7; | 32 | 8.03M | } while (*p++ >= 128); | 33 | 5.80M | if (n) | 34 | 5.80M | *n = (unsigned)(p - orig_p); | 35 | 5.80M | return Value; | 36 | 5.80M | } |
XCoreDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 644k | { | 26 | 644k | const uint8_t *orig_p = p; | 27 | 644k | uint64_t Value = 0; | 28 | 644k | unsigned Shift = 0; | 29 | 717k | do { | 30 | 717k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 717k | Shift += 7; | 32 | 717k | } while (*p++ >= 128); | 33 | 644k | if (n) | 34 | 644k | *n = (unsigned)(p - orig_p); | 35 | 644k | return Value; | 36 | 644k | } |
TMS320C64xDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 977k | { | 26 | 977k | const uint8_t *orig_p = p; | 27 | 977k | uint64_t Value = 0; | 28 | 977k | unsigned Shift = 0; | 29 | 999k | do { | 30 | 999k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 999k | Shift += 7; | 32 | 999k | } while (*p++ >= 128); | 33 | 977k | if (n) | 34 | 977k | *n = (unsigned)(p - orig_p); | 35 | 977k | return Value; | 36 | 977k | } |
RISCVDisassembler.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 | 3.35M | do { | 30 | 3.35M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.35M | Shift += 7; | 32 | 3.35M | } while (*p++ >= 128); | 33 | 3.20M | if (n) | 34 | 3.20M | *n = (unsigned)(p - orig_p); | 35 | 3.20M | return Value; | 36 | 3.20M | } |
Unexecuted instantiation: TriCoreDisassembler.c:decodeULEB128 |
37 | | |
38 | | #endif // LLVM_SYSTEM_LEB128_H |