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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 | 55.8M | { |
26 | 55.8M | const uint8_t *orig_p = p; |
27 | 55.8M | uint64_t Value = 0; |
28 | 55.8M | unsigned Shift = 0; |
29 | 62.7M | do { |
30 | 62.7M | Value += (uint64_t)(*p & 0x7f) << Shift; |
31 | 62.7M | Shift += 7; |
32 | 62.7M | } while (*p++ >= 128); |
33 | 55.8M | if (n) |
34 | 55.8M | *n = (unsigned)(p - orig_p); |
35 | 55.8M | return Value; |
36 | 55.8M | } ARMDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 17.5M | { | 26 | 17.5M | const uint8_t *orig_p = p; | 27 | 17.5M | uint64_t Value = 0; | 28 | 17.5M | unsigned Shift = 0; | 29 | 19.2M | do { | 30 | 19.2M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 19.2M | Shift += 7; | 32 | 19.2M | } while (*p++ >= 128); | 33 | 17.5M | if (n) | 34 | 17.5M | *n = (unsigned)(p - orig_p); | 35 | 17.5M | return Value; | 36 | 17.5M | } |
AArch64Disassembler.c:decodeULEB128 Line | Count | Source | 25 | 9.77M | { | 26 | 9.77M | const uint8_t *orig_p = p; | 27 | 9.77M | uint64_t Value = 0; | 28 | 9.77M | unsigned Shift = 0; | 29 | 10.6M | do { | 30 | 10.6M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 10.6M | Shift += 7; | 32 | 10.6M | } while (*p++ >= 128); | 33 | 9.77M | if (n) | 34 | 9.77M | *n = (unsigned)(p - orig_p); | 35 | 9.77M | return Value; | 36 | 9.77M | } |
MipsDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 4.24M | { | 26 | 4.24M | const uint8_t *orig_p = p; | 27 | 4.24M | uint64_t Value = 0; | 28 | 4.24M | unsigned Shift = 0; | 29 | 4.39M | do { | 30 | 4.39M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 4.39M | Shift += 7; | 32 | 4.39M | } while (*p++ >= 128); | 33 | 4.24M | if (n) | 34 | 4.24M | *n = (unsigned)(p - orig_p); | 35 | 4.24M | return Value; | 36 | 4.24M | } |
PPCDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 7.00M | { | 26 | 7.00M | const uint8_t *orig_p = p; | 27 | 7.00M | uint64_t Value = 0; | 28 | 7.00M | unsigned Shift = 0; | 29 | 7.26M | do { | 30 | 7.26M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 7.26M | Shift += 7; | 32 | 7.26M | } while (*p++ >= 128); | 33 | 7.00M | if (n) | 34 | 7.00M | *n = (unsigned)(p - orig_p); | 35 | 7.00M | return Value; | 36 | 7.00M | } |
SparcDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 2.52M | { | 26 | 2.52M | const uint8_t *orig_p = p; | 27 | 2.52M | uint64_t Value = 0; | 28 | 2.52M | unsigned Shift = 0; | 29 | 2.57M | do { | 30 | 2.57M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 2.57M | Shift += 7; | 32 | 2.57M | } while (*p++ >= 128); | 33 | 2.52M | if (n) | 34 | 2.52M | *n = (unsigned)(p - orig_p); | 35 | 2.52M | return Value; | 36 | 2.52M | } |
SystemZDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 9.09M | { | 26 | 9.09M | const uint8_t *orig_p = p; | 27 | 9.09M | uint64_t Value = 0; | 28 | 9.09M | unsigned Shift = 0; | 29 | 12.7M | do { | 30 | 12.7M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 12.7M | Shift += 7; | 32 | 12.7M | } while (*p++ >= 128); | 33 | 9.09M | if (n) | 34 | 9.09M | *n = (unsigned)(p - orig_p); | 35 | 9.09M | return Value; | 36 | 9.09M | } |
XCoreDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 734k | { | 26 | 734k | const uint8_t *orig_p = p; | 27 | 734k | uint64_t Value = 0; | 28 | 734k | unsigned Shift = 0; | 29 | 793k | do { | 30 | 793k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 793k | Shift += 7; | 32 | 793k | } while (*p++ >= 128); | 33 | 734k | if (n) | 34 | 734k | *n = (unsigned)(p - orig_p); | 35 | 734k | return Value; | 36 | 734k | } |
TMS320C64xDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 940k | { | 26 | 940k | const uint8_t *orig_p = p; | 27 | 940k | uint64_t Value = 0; | 28 | 940k | unsigned Shift = 0; | 29 | 961k | do { | 30 | 961k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 961k | Shift += 7; | 32 | 961k | } while (*p++ >= 128); | 33 | 940k | if (n) | 34 | 940k | *n = (unsigned)(p - orig_p); | 35 | 940k | return Value; | 36 | 940k | } |
RISCVDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 3.90M | { | 26 | 3.90M | const uint8_t *orig_p = p; | 27 | 3.90M | uint64_t Value = 0; | 28 | 3.90M | unsigned Shift = 0; | 29 | 4.07M | do { | 30 | 4.07M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 4.07M | Shift += 7; | 32 | 4.07M | } while (*p++ >= 128); | 33 | 3.90M | if (n) | 34 | 3.90M | *n = (unsigned)(p - orig_p); | 35 | 3.90M | return Value; | 36 | 3.90M | } |
Unexecuted instantiation: TriCoreDisassembler.c:decodeULEB128 |
37 | | |
38 | | #endif // LLVM_SYSTEM_LEB128_H |