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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 | 39.1M | { |
26 | 39.1M | const uint8_t *orig_p = p; |
27 | 39.1M | uint64_t Value = 0; |
28 | 39.1M | unsigned Shift = 0; |
29 | 43.8M | do { |
30 | 43.8M | Value += (uint64_t)(*p & 0x7f) << Shift; |
31 | 43.8M | Shift += 7; |
32 | 43.8M | } while (*p++ >= 128); |
33 | 39.1M | if (n) |
34 | 39.1M | *n = (unsigned)(p - orig_p); |
35 | 39.1M | return Value; |
36 | 39.1M | } ARMDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 15.1M | { | 26 | 15.1M | const uint8_t *orig_p = p; | 27 | 15.1M | uint64_t Value = 0; | 28 | 15.1M | unsigned Shift = 0; | 29 | 16.7M | do { | 30 | 16.7M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 16.7M | Shift += 7; | 32 | 16.7M | } while (*p++ >= 128); | 33 | 15.1M | if (n) | 34 | 15.1M | *n = (unsigned)(p - orig_p); | 35 | 15.1M | return Value; | 36 | 15.1M | } |
AArch64Disassembler.c:decodeULEB128 Line | Count | Source | 25 | 6.17M | { | 26 | 6.17M | const uint8_t *orig_p = p; | 27 | 6.17M | uint64_t Value = 0; | 28 | 6.17M | unsigned Shift = 0; | 29 | 6.75M | do { | 30 | 6.75M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 6.75M | Shift += 7; | 32 | 6.75M | } while (*p++ >= 128); | 33 | 6.17M | if (n) | 34 | 6.17M | *n = (unsigned)(p - orig_p); | 35 | 6.17M | return Value; | 36 | 6.17M | } |
MipsDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 2.91M | { | 26 | 2.91M | const uint8_t *orig_p = p; | 27 | 2.91M | uint64_t Value = 0; | 28 | 2.91M | unsigned Shift = 0; | 29 | 3.02M | do { | 30 | 3.02M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 3.02M | Shift += 7; | 32 | 3.02M | } while (*p++ >= 128); | 33 | 2.91M | if (n) | 34 | 2.91M | *n = (unsigned)(p - orig_p); | 35 | 2.91M | return Value; | 36 | 2.91M | } |
PPCDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 4.51M | { | 26 | 4.51M | const uint8_t *orig_p = p; | 27 | 4.51M | uint64_t Value = 0; | 28 | 4.51M | unsigned Shift = 0; | 29 | 4.69M | do { | 30 | 4.69M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 4.69M | Shift += 7; | 32 | 4.69M | } while (*p++ >= 128); | 33 | 4.51M | if (n) | 34 | 4.51M | *n = (unsigned)(p - orig_p); | 35 | 4.51M | return Value; | 36 | 4.51M | } |
SparcDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 1.39M | { | 26 | 1.39M | const uint8_t *orig_p = p; | 27 | 1.39M | uint64_t Value = 0; | 28 | 1.39M | unsigned Shift = 0; | 29 | 1.42M | do { | 30 | 1.42M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 1.42M | Shift += 7; | 32 | 1.42M | } while (*p++ >= 128); | 33 | 1.39M | if (n) | 34 | 1.39M | *n = (unsigned)(p - orig_p); | 35 | 1.39M | return Value; | 36 | 1.39M | } |
SystemZDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 5.37M | { | 26 | 5.37M | const uint8_t *orig_p = p; | 27 | 5.37M | uint64_t Value = 0; | 28 | 5.37M | unsigned Shift = 0; | 29 | 7.42M | do { | 30 | 7.42M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 7.42M | Shift += 7; | 32 | 7.42M | } while (*p++ >= 128); | 33 | 5.37M | if (n) | 34 | 5.37M | *n = (unsigned)(p - orig_p); | 35 | 5.37M | return Value; | 36 | 5.37M | } |
XCoreDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 828k | { | 26 | 828k | const uint8_t *orig_p = p; | 27 | 828k | uint64_t Value = 0; | 28 | 828k | unsigned Shift = 0; | 29 | 911k | do { | 30 | 911k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 911k | Shift += 7; | 32 | 911k | } while (*p++ >= 128); | 33 | 828k | if (n) | 34 | 828k | *n = (unsigned)(p - orig_p); | 35 | 828k | return Value; | 36 | 828k | } |
TMS320C64xDisassembler.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 | 793k | do { | 30 | 793k | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 793k | Shift += 7; | 32 | 793k | } while (*p++ >= 128); | 33 | 776k | if (n) | 34 | 776k | *n = (unsigned)(p - orig_p); | 35 | 776k | return Value; | 36 | 776k | } |
RISCVDisassembler.c:decodeULEB128 Line | Count | Source | 25 | 2.04M | { | 26 | 2.04M | const uint8_t *orig_p = p; | 27 | 2.04M | uint64_t Value = 0; | 28 | 2.04M | unsigned Shift = 0; | 29 | 2.13M | do { | 30 | 2.13M | Value += (uint64_t)(*p & 0x7f) << Shift; | 31 | 2.13M | Shift += 7; | 32 | 2.13M | } while (*p++ >= 128); | 33 | 2.04M | if (n) | 34 | 2.04M | *n = (unsigned)(p - orig_p); | 35 | 2.04M | return Value; | 36 | 2.04M | } |
Unexecuted instantiation: TriCoreDisassembler.c:decodeULEB128 |
37 | | |
38 | | #endif // LLVM_SYSTEM_LEB128_H |