mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-29 00:00:08 +08:00
50ed179e9a
Use BUILDFLAG(IS_*) instead of defined(OS_*).
This was generated mostly mechnically by performing the following steps:
- sed -i '' -E -e 's/defined\(OS_/BUILDFLAG(IS_/g' \
-e 's%([ !])OS_([A-Z]+)%\1BUILDFLAG(IS_\2)%g' \
$(git grep -l 'OS_'
'**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm')
- sed -i '' -e 's/#ifdef BUILDFLAG(/#if BUILDFLAG(/' \
$(git grep -l '#ifdef BUILDFLAG('
'**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm')
- gsed -i -z -E -e \
's%(.*)#include "%\1#include "build/buildflag.h"\n#include "%' \
$(git grep -l 'BUILDFLAG(IS_'
'**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm')
- Spot checks to move #include "build/buildflag.h" to the correct parts
of files.
- sed -i '' -E -e \
's%^(#include "build/buildflag.h")$%#include "build/build_config.h"\n\1%' \
$(grep -L '^#include "build/build_config.h"$'
$(git grep -l 'BUILDFLAG(IS_'
'**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm'))
- Add “clang-format off” around tool usage messages.
- git cl format
- Update mini_chromium to 85ba51f98278 (intermediate step).
TESTING ONLY).
- for f in $(git grep -l '^#include "build/buildflag.h"$'
'**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm'); do \
grep -v '^#include "build/buildflag.h"$' "${f}" > /tmp/z; \
cp /tmp/z "${f}"; done
- git cl format
- Update mini_chromium to 735143774c5f (intermediate step).
- Update mini_chromium to f41420eb45fa (as checked in).
- Update mini_chromium to 6e2f204b4ae1 (as checked in).
For ease of review and inspection, each of these steps is uploaded as a
new patch set in a review series.
This includes an update of mini_chromium to 6e2f204b4ae1:
f41420eb45fa Use BUILDFLAG for OS checking
6e2f204b4ae1 Include what you use: string_util.h uses build_config.h
Bug: chromium:1234043
Change-Id: Ieef86186f094c64e59b853729737e36982f8cf69
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3400258
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
88 lines
3.2 KiB
C++
88 lines
3.2 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
|
||
//
|
||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
// you may not use this file except in compliance with the License.
|
||
// You may obtain a copy of the License at
|
||
//
|
||
// http://www.apache.org/licenses/LICENSE-2.0
|
||
//
|
||
// Unless required by applicable law or agreed to in writing, software
|
||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
// See the License for the specific language governing permissions and
|
||
// limitations under the License.
|
||
|
||
#ifndef CRASHPAD_UTIL_MISC_CAPTURE_CONTEXT_H_
|
||
#define CRASHPAD_UTIL_MISC_CAPTURE_CONTEXT_H_
|
||
|
||
#include "build/build_config.h"
|
||
|
||
#if BUILDFLAG(IS_APPLE)
|
||
#include <mach/mach.h>
|
||
#elif BUILDFLAG(IS_WIN)
|
||
#include <windows.h>
|
||
#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
|
||
#include <ucontext.h>
|
||
#elif BUILDFLAG(IS_FUCHSIA)
|
||
#include <signal.h>
|
||
#endif // BUILDFLAG(IS_APPLE)
|
||
|
||
namespace crashpad {
|
||
|
||
#if BUILDFLAG(IS_APPLE)
|
||
#if defined(ARCH_CPU_X86_FAMILY)
|
||
using NativeCPUContext = x86_thread_state;
|
||
#elif defined(ARCH_CPU_ARM64)
|
||
using NativeCPUContext = arm_unified_thread_state;
|
||
#endif
|
||
#elif BUILDFLAG(IS_WIN)
|
||
using NativeCPUContext = CONTEXT;
|
||
#elif BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || \
|
||
BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_FUCHSIA)
|
||
using NativeCPUContext = ucontext_t;
|
||
#endif // BUILDFLAG(IS_APPLE)
|
||
|
||
//! \brief Saves the CPU context.
|
||
//!
|
||
//! The CPU context will be captured as accurately and completely as possible,
|
||
//! containing an atomic snapshot at the point of this function’s return. This
|
||
//! function does not modify any registers.
|
||
//!
|
||
//! This function is a replacement for `RtlCaptureContext()` and `getcontext()`
|
||
//! which contain bugs and/or limitations.
|
||
//!
|
||
//! On 32-bit x86, `RtlCaptureContext()` requires that `ebp` be used as a frame
|
||
//! pointer, and returns `ebp`, `esp`, and `eip` out of sync with the other
|
||
//! registers. Both the 32-bit x86 and 64-bit x86_64 versions of
|
||
//! `RtlCaptureContext()` capture only the state of the integer registers,
|
||
//! ignoring floating-point and vector state.
|
||
//!
|
||
//! \param[out] cpu_context The structure to store the context in.
|
||
//!
|
||
//! \note The ABI may require that this function's argument is passed by
|
||
//! register, preventing this fuction from saving the original value of that
|
||
//! register. This occurs in the following circumstances:
|
||
//!
|
||
//! OS | Architecture | Register
|
||
//! --------------------|--------------|---------
|
||
//! Win | x86_64 | `%%rcx`
|
||
//! macOS/Linux/Fuchsia | x86_64 | `%%rdi`
|
||
//! Linux | ARM/ARM64 | `r0`/`x0`
|
||
//! Linux | MIPS/MIPS64 | `$a0`
|
||
//!
|
||
//! Additionally, the value `LR` on ARM/ARM64 will be the return address of
|
||
//! this function.
|
||
//!
|
||
//! If the value of these register prior to calling this function are needed
|
||
//! they must be obtained separately prior to calling this function. For
|
||
//! example:
|
||
//! \code
|
||
//! uint64_t rdi;
|
||
//! asm("movq %%rdi, %0" : "=m"(rdi));
|
||
//! \endcode
|
||
void CaptureContext(NativeCPUContext* cpu_context);
|
||
|
||
} // namespace crashpad
|
||
|
||
#endif // CRASHPAD_UTIL_MISC_CAPTURE_CONTEXT_H_
|