-
Notifications
You must be signed in to change notification settings - Fork 48
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
39: Update libFuzzer to be from the 'release_90' branch r=nagisa a=alex Co-authored-by: Alex Gaynor <[email protected]>
- Loading branch information
Showing
64 changed files
with
3,227 additions
and
1,901 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| //===- FuzzerBuiltins.h - Internal header for builtins ----------*- C++ -* ===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| // Wrapper functions and marcos around builtin functions. | ||
| //===----------------------------------------------------------------------===// | ||
|
|
||
| #ifndef LLVM_FUZZER_BUILTINS_H | ||
| #define LLVM_FUZZER_BUILTINS_H | ||
|
|
||
| #include "FuzzerDefs.h" | ||
|
|
||
| #if !LIBFUZZER_MSVC | ||
| #include <cstdint> | ||
|
|
||
| #define GET_CALLER_PC() __builtin_return_address(0) | ||
|
|
||
| namespace fuzzer { | ||
|
|
||
| inline uint8_t Bswap(uint8_t x) { return x; } | ||
| inline uint16_t Bswap(uint16_t x) { return __builtin_bswap16(x); } | ||
| inline uint32_t Bswap(uint32_t x) { return __builtin_bswap32(x); } | ||
| inline uint64_t Bswap(uint64_t x) { return __builtin_bswap64(x); } | ||
|
|
||
| inline uint32_t Clzll(unsigned long long X) { return __builtin_clzll(X); } | ||
| inline uint32_t Clz(unsigned long long X) { return __builtin_clz(X); } | ||
| inline int Popcountll(unsigned long long X) { return __builtin_popcountll(X); } | ||
|
|
||
| } // namespace fuzzer | ||
|
|
||
| #endif // !LIBFUZZER_MSVC | ||
| #endif // LLVM_FUZZER_BUILTINS_H |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| //===- FuzzerBuiltinsMSVC.h - Internal header for builtins ------*- C++ -* ===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| // Wrapper functions and marcos that use intrinsics instead of builtin functions | ||
| // which cannot be compiled by MSVC. | ||
| //===----------------------------------------------------------------------===// | ||
|
|
||
| #ifndef LLVM_FUZZER_BUILTINS_MSVC_H | ||
| #define LLVM_FUZZER_BUILTINS_MSVC_H | ||
|
|
||
| #include "FuzzerDefs.h" | ||
|
|
||
| #if LIBFUZZER_MSVC | ||
| #if !defined(_M_ARM) && !defined(_M_X64) | ||
| #error "_BitScanReverse64 unavailable on this platform so MSVC is unsupported." | ||
| #endif | ||
| #include <intrin.h> | ||
| #include <cstdint> | ||
| #include <cstdlib> | ||
|
|
||
| // __builtin_return_address() cannot be compiled with MSVC. Use the equivalent | ||
| // from <intrin.h> | ||
| #define GET_CALLER_PC() _ReturnAddress() | ||
|
|
||
| namespace fuzzer { | ||
|
|
||
| inline uint8_t Bswap(uint8_t x) { return x; } | ||
| // Use alternatives to __builtin functions from <stdlib.h> and <intrin.h> on | ||
| // Windows since the builtins are not supported by MSVC. | ||
| inline uint16_t Bswap(uint16_t x) { return _byteswap_ushort(x); } | ||
| inline uint32_t Bswap(uint32_t x) { return _byteswap_ulong(x); } | ||
| inline uint64_t Bswap(uint64_t x) { return _byteswap_uint64(x); } | ||
|
|
||
| // The functions below were mostly copied from | ||
| // compiler-rt/lib/builtins/int_lib.h which defines the __builtin functions used | ||
| // outside of Windows. | ||
| inline uint32_t Clzll(uint64_t X) { | ||
| unsigned long LeadZeroIdx = 0; | ||
| if (_BitScanReverse64(&LeadZeroIdx, X)) return 63 - LeadZeroIdx; | ||
| return 64; | ||
| } | ||
|
|
||
| inline uint32_t Clz(uint32_t X) { | ||
| unsigned long LeadZeroIdx = 0; | ||
| if (_BitScanReverse(&LeadZeroIdx, X)) return 31 - LeadZeroIdx; | ||
| return 32; | ||
| } | ||
|
|
||
| inline int Popcountll(unsigned long long X) { return __popcnt64(X); } | ||
|
|
||
| } // namespace fuzzer | ||
|
|
||
| #endif // LIBFUZER_MSVC | ||
| #endif // LLVM_FUZZER_BUILTINS_MSVC_H |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.