mirror of
https://github.com/reactos/reactos.git
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147 lines
4.9 KiB
C++
147 lines
4.9 KiB
C++
/*
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* PROJECT: Dr. Watson crash reporter
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: Print a stacktrace
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* COPYRIGHT: Copyright 2017 Mark Jansen (mark.jansen@reactos.org)
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*/
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#include "precomp.h"
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#include <dbghelp.h>
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void BeginStackBacktrace(DumpData& data)
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{
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DWORD symOptions = SymGetOptions();
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symOptions |= SYMOPT_UNDNAME | SYMOPT_AUTO_PUBLICS | SYMOPT_DEFERRED_LOADS;
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SymSetOptions(symOptions);
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SymInitialize(data.ProcessHandle, NULL, TRUE);
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}
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void EndStackBacktrace(DumpData& data)
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{
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SymCleanup(data.ProcessHandle);
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}
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static char ToChar(UCHAR data)
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{
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if (data < 0xa)
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return '0' + data;
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else if (data <= 0xf)
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return 'a' + data - 0xa;
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return '?';
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}
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void PrintStackBacktrace(FILE* output, DumpData& data, ThreadData& thread)
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{
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DWORD MachineType;
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STACKFRAME64 StackFrame = { { 0 } };
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#ifdef _M_X64
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MachineType = IMAGE_FILE_MACHINE_AMD64;
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StackFrame.AddrPC.Offset = thread.Context.Rip;
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StackFrame.AddrPC.Mode = AddrModeFlat;
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StackFrame.AddrStack.Offset = thread.Context.Rsp;
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StackFrame.AddrStack.Mode = AddrModeFlat;
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StackFrame.AddrFrame.Offset = thread.Context.Rbp;
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StackFrame.AddrFrame.Mode = AddrModeFlat;
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#else
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MachineType = IMAGE_FILE_MACHINE_I386;
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StackFrame.AddrPC.Offset = thread.Context.Eip;
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StackFrame.AddrPC.Mode = AddrModeFlat;
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StackFrame.AddrStack.Offset = thread.Context.Esp;
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StackFrame.AddrStack.Mode = AddrModeFlat;
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StackFrame.AddrFrame.Offset = thread.Context.Ebp;
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StackFrame.AddrFrame.Mode = AddrModeFlat;
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#endif
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#define STACKWALK_MAX_NAMELEN 512
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char buf[sizeof(SYMBOL_INFO) + STACKWALK_MAX_NAMELEN] = {0};
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SYMBOL_INFO* sym = (SYMBOL_INFO *)buf;
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IMAGEHLP_MODULE64 Module = { 0 };
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sym->SizeOfStruct = sizeof(sym);
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/* FIXME: Disasm function! */
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xfprintf(output, NEWLINE "*----> Stack Back Trace <----*" NEWLINE NEWLINE);
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bool first = true;
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ULONG_PTR LastFrame = StackFrame.AddrFrame.Offset - 8;
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while(StackWalk64(MachineType, data.ProcessHandle, thread.Handle, &StackFrame, &thread.Context,
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NULL, SymFunctionTableAccess64, SymGetModuleBase64, NULL))
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{
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if (!StackFrame.AddrPC.Offset)
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break;
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if (LastFrame >= StackFrame.AddrFrame.Offset)
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break;
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LastFrame = StackFrame.AddrFrame.Offset;
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if (first)
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{
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xfprintf(output, "FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name" NEWLINE);
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first = false;
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}
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Module.SizeOfStruct = sizeof(Module);
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DWORD64 ModBase = SymGetModuleBase64(data.ProcessHandle, StackFrame.AddrPC.Offset);
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if (!SymGetModuleInfo64(data.ProcessHandle, ModBase, &Module))
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strcpy(Module.ModuleName, "<nomod>");
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memset(sym, '\0', sizeof(*sym) + STACKWALK_MAX_NAMELEN);
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sym->SizeOfStruct = sizeof(*sym);
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sym->MaxNameLen = STACKWALK_MAX_NAMELEN;
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DWORD64 displacement;
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if (!SymFromAddr(data.ProcessHandle, StackFrame.AddrPC.Offset, &displacement, sym))
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strcpy(sym->Name, "<nosymbols>");
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xfprintf(output, "%p %p %p %p %p %p %s!%s" NEWLINE,
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(ULONG_PTR)StackFrame.AddrFrame.Offset, (ULONG_PTR)StackFrame.AddrPC.Offset,
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(ULONG_PTR)StackFrame.Params[0], (ULONG_PTR)StackFrame.Params[1],
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(ULONG_PTR)StackFrame.Params[2], (ULONG_PTR)StackFrame.Params[3],
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Module.ModuleName, sym->Name);
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}
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UCHAR stackData[0x10 * 10];
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SIZE_T sizeRead;
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#if defined(_M_IX86)
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ULONG_PTR stackPointer = thread.Context.Esp;
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#elif defined(_M_AMD64)
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ULONG_PTR stackPointer = thread.Context.Rsp;
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#else
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#error Unknown architecture
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#endif
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if (!ReadProcessMemory(data.ProcessHandle, (PVOID)stackPointer, stackData, sizeof(stackData), &sizeRead))
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return;
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xfprintf(output, NEWLINE "*----> Raw Stack Dump <----*" NEWLINE NEWLINE);
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for (size_t n = 0; n < sizeof(stackData); n += 0x10)
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{
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char HexData1[] = "?? ?? ?? ?? ?? ?? ?? ??";
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char HexData2[] = "?? ?? ?? ?? ?? ?? ?? ??";
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char AsciiData1[] = "????????";
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char AsciiData2[] = "????????";
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for (size_t j = 0; j < 8; ++j)
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{
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size_t idx = j + n;
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if (idx < sizeRead)
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{
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HexData1[j * 3] = ToChar(stackData[idx] >> 4);
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HexData1[j * 3 + 1] = ToChar(stackData[idx] & 0xf);
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AsciiData1[j] = isprint(stackData[idx]) ? stackData[idx] : '.';
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}
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idx += 8;
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if (idx < sizeRead)
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{
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HexData2[j * 3] = ToChar(stackData[idx] >> 4);
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HexData2[j * 3 + 1] = ToChar(stackData[idx] & 0xf);
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AsciiData2[j] = isprint(stackData[idx]) ? stackData[idx] : '.';
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}
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}
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xfprintf(output, "%p %s - %s %s%s" NEWLINE, stackPointer+n, HexData1, HexData2, AsciiData1, AsciiData2);
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}
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}
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