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//===-- RegisterContextMinidump_x86_32.cpp --------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "RegisterContextMinidump_x86_32.h"
#include "lldb/Utility/DataBufferHeap.h"
// C includes
// C++ includes
using namespace lldb_private;
using namespace minidump;
static void writeRegister(const void *reg_src,
llvm::MutableArrayRef<uint8_t> reg_dest) {
memcpy(reg_dest.data(), reg_src, reg_dest.size());
}
lldb::DataBufferSP lldb_private::minidump::ConvertMinidumpContext_x86_32(
llvm::ArrayRef<uint8_t> source_data,
RegisterInfoInterface *target_reg_interface) {
const RegisterInfo *reg_info = target_reg_interface->GetRegisterInfo();
lldb::WritableDataBufferSP result_context_buf(
new DataBufferHeap(target_reg_interface->GetGPRSize(), 0));
uint8_t *result_base = result_context_buf->GetBytes();
if (source_data.size() < sizeof(MinidumpContext_x86_32))
return nullptr;
const MinidumpContext_x86_32 *context;
consumeObject(source_data, context);
const MinidumpContext_x86_32_Flags context_flags =
static_cast<MinidumpContext_x86_32_Flags>(
static_cast<uint32_t>(context->context_flags));
auto x86_32_Flag = MinidumpContext_x86_32_Flags::x86_32_Flag;
auto ControlFlag = MinidumpContext_x86_32_Flags::Control;
auto IntegerFlag = MinidumpContext_x86_32_Flags::Integer;
auto SegmentsFlag = MinidumpContext_x86_32_Flags::Segments;
if ((context_flags & x86_32_Flag) != x86_32_Flag) {
return nullptr;
}
if ((context_flags & ControlFlag) == ControlFlag) {
writeRegister(&context->ebp,
reg_info[lldb_ebp_i386].mutable_data(result_base));
writeRegister(&context->eip,
reg_info[lldb_eip_i386].mutable_data(result_base));
writeRegister(&context->cs,
reg_info[lldb_cs_i386].mutable_data(result_base));
writeRegister(&context->eflags,
reg_info[lldb_eflags_i386].mutable_data(result_base));
writeRegister(&context->esp,
reg_info[lldb_esp_i386].mutable_data(result_base));
writeRegister(&context->ss,
reg_info[lldb_ss_i386].mutable_data(result_base));
}
if ((context_flags & SegmentsFlag) == SegmentsFlag) {
writeRegister(&context->ds,
reg_info[lldb_ds_i386].mutable_data(result_base));
writeRegister(&context->es,
reg_info[lldb_es_i386].mutable_data(result_base));
writeRegister(&context->fs,
reg_info[lldb_fs_i386].mutable_data(result_base));
writeRegister(&context->gs,
reg_info[lldb_gs_i386].mutable_data(result_base));
}
if ((context_flags & IntegerFlag) == IntegerFlag) {
writeRegister(&context->eax,
reg_info[lldb_eax_i386].mutable_data(result_base));
writeRegister(&context->ecx,
reg_info[lldb_ecx_i386].mutable_data(result_base));
writeRegister(&context->edx,
reg_info[lldb_edx_i386].mutable_data(result_base));
writeRegister(&context->ebx,
reg_info[lldb_ebx_i386].mutable_data(result_base));
writeRegister(&context->esi,
reg_info[lldb_esi_i386].mutable_data(result_base));
writeRegister(&context->edi,
reg_info[lldb_edi_i386].mutable_data(result_base));
}
// TODO parse the floating point registers
return result_context_buf;
}
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