mirror of
https://github.com/chromium/crashpad.git
synced 2025-03-10 06:36:02 +00:00
5af9c42638
R=mark@chromium.org BUG=crashpad:86, chromium:571144 Review URL: https://codereview.chromium.org/1533183002 .
104 lines
4.3 KiB
C++
104 lines
4.3 KiB
C++
// Copyright 2016 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.
|
|
|
|
#include "snapshot/win/capture_context_memory.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <limits>
|
|
|
|
#include "snapshot/win/memory_snapshot_win.h"
|
|
#include "snapshot/win/process_reader_win.h"
|
|
|
|
namespace crashpad {
|
|
namespace internal {
|
|
|
|
namespace {
|
|
|
|
void MaybeCaptureMemoryAround(ProcessReaderWin* process_reader,
|
|
WinVMAddress address,
|
|
PointerVector<MemorySnapshotWin>* into) {
|
|
const WinVMAddress non_address_offset = 0x10000;
|
|
if (address < non_address_offset)
|
|
return;
|
|
if (process_reader->Is64Bit()) {
|
|
if (address >= std::numeric_limits<uint64_t>::max() - non_address_offset)
|
|
return;
|
|
} else {
|
|
if (address >= std::numeric_limits<uint32_t>::max() - non_address_offset)
|
|
return;
|
|
}
|
|
|
|
const WinVMSize kRegisterByteOffset = 32;
|
|
const WinVMAddress target = address - kRegisterByteOffset;
|
|
const WinVMSize size = 128;
|
|
auto ranges = process_reader->GetProcessInfo().GetReadableRanges(
|
|
CheckedRange<WinVMAddress, WinVMSize>(target, size));
|
|
for (const auto& range : ranges) {
|
|
internal::MemorySnapshotWin* snapshot = new internal::MemorySnapshotWin();
|
|
snapshot->Initialize(process_reader, range.base(), range.size());
|
|
into->push_back(snapshot);
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
void CaptureMemoryPointedToByContext(const CPUContext& context,
|
|
ProcessReaderWin* process_reader,
|
|
const ProcessReaderWin::Thread& thread,
|
|
PointerVector<MemorySnapshotWin>* into) {
|
|
#if defined(ARCH_CPU_X86_64)
|
|
if (context.architecture == kCPUArchitectureX86_64) {
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rax, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rbx, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rcx, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rdx, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rdi, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rsi, into);
|
|
if (context.x86_64->rbp < thread.stack_region_address ||
|
|
context.x86_64->rbp >=
|
|
thread.stack_region_address + thread.stack_region_size) {
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rbp, into);
|
|
}
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r8, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r9, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r10, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r11, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r12, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r13, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r14, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->r15, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86_64->rip, into);
|
|
} else {
|
|
#endif
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->eax, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->ebx, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->ecx, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->edx, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->edi, into);
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->esi, into);
|
|
if (context.x86->ebp < thread.stack_region_address ||
|
|
context.x86->ebp >=
|
|
thread.stack_region_address + thread.stack_region_size) {
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->ebp, into);
|
|
}
|
|
MaybeCaptureMemoryAround(process_reader, context.x86->eip, into);
|
|
#if defined(ARCH_CPU_X86_64)
|
|
}
|
|
#endif
|
|
}
|
|
|
|
} // namespace internal
|
|
} // namespace crashpad
|