0ddbbf43cb
Thank you for the very useful library! Few improvements: - Better header hygiene - Isolate `windows.h` to `.cpp` whenever possible - Use `WIN32_LEAN_AND_MEAN` - Remove unused headers Tested on Windows with ``` cmake .. -DCMAKE_BUILD_TYPE=Debug -GNinja -DCMAKE_EXPORT_COMPILE_COMMANDS=1 -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_CXX_FLAGS="-ftime-trace -Wall -Wextra -Wpedantic -Wno-ignored-attributes" -DCMAKE_COLOR_DIAGNOSTICS=1 -DCPPTRACE_BUILD_TESTING=1 -DCPPTRACE_BUILD_BENCHMARKING=0 ``` There's a lot more that can be improved if you are interested. --------- Co-authored-by: Jeremy Rifkin <51220084+jeremy-rifkin@users.noreply.github.com>
103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <dbghelp.h>
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#define IS_CLANG 0
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#define IS_GCC 0
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#define IS_MSVC 0
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#if defined(__clang__)
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#undef IS_CLANG
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#define IS_CLANG 1
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#elif defined(__GNUC__) || defined(__GNUG__)
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#undef IS_GCC
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#define IS_GCC 1
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#elif defined(_MSC_VER)
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#undef IS_MSVC
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#define IS_MSVC 1
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#else
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#error "Unsupported compiler"
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#endif
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int main() {
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HANDLE proc = GetCurrentProcess();
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HANDLE thread = GetCurrentThread();
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// https://jpassing.com/2008/03/12/walking-the-stack-of-the-current-thread/
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// Get current thread context
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// GetThreadContext cannot be used on the current thread.
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// RtlCaptureContext doesn't work on i386
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CONTEXT context;
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#if defined(_M_IX86) || defined(__i386__)
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ZeroMemory(&context, sizeof(CONTEXT));
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context.ContextFlags = CONTEXT_CONTROL;
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#if IS_MSVC
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__asm {
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label:
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mov [context.Ebp], ebp;
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mov [context.Esp], esp;
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mov eax, [label];
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mov [context.Eip], eax;
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}
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#else
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asm(
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"label:\n\t"
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"mov{l %%ebp, %[cEbp] | %[cEbp], ebp};\n\t"
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"mov{l %%esp, %[cEsp] | %[cEsp], esp};\n\t"
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"mov{l $label, %%eax | eax, OFFSET label};\n\t"
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"mov{l %%eax, %[cEip] | %[cEip], eax};\n\t"
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: [cEbp] "=r" (context.Ebp),
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[cEsp] "=r" (context.Esp),
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[cEip] "=r" (context.Eip)
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);
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#endif
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#else
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RtlCaptureContext(&context);
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#endif
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// Setup current frame
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STACKFRAME64 frame;
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ZeroMemory(&frame, sizeof(STACKFRAME64));
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DWORD machine_type;
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#if defined(_M_IX86) || defined(__i386__)
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machine_type = IMAGE_FILE_MACHINE_I386;
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frame.AddrPC.Offset = context.Eip;
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frame.AddrPC.Mode = AddrModeFlat;
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frame.AddrFrame.Offset = context.Ebp;
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frame.AddrFrame.Mode = AddrModeFlat;
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frame.AddrStack.Offset = context.Esp;
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frame.AddrStack.Mode = AddrModeFlat;
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#elif defined(_M_X64) || defined(__x86_64__)
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machine_type = IMAGE_FILE_MACHINE_AMD64;
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frame.AddrPC.Offset = context.Rip;
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frame.AddrPC.Mode = AddrModeFlat;
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frame.AddrFrame.Offset = context.Rsp;
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frame.AddrFrame.Mode = AddrModeFlat;
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frame.AddrStack.Offset = context.Rsp;
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frame.AddrStack.Mode = AddrModeFlat;
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#elif defined(_M_IA64) || defined(__aarch64__)
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machine_type = IMAGE_FILE_MACHINE_IA64;
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frame.AddrPC.Offset = context.StIIP;
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frame.AddrPC.Mode = AddrModeFlat;
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frame.AddrFrame.Offset = context.IntSp;
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frame.AddrFrame.Mode = AddrModeFlat;
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frame.AddrBStore.Offset= context.RsBSP;
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frame.AddrBStore.Mode = AddrModeFlat;
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frame.AddrStack.Offset = context.IntSp;
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frame.AddrStack.Mode = AddrModeFlat;
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#else
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#error "Cpptrace: StackWalk64 not supported for this platform yet"
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#endif
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ZeroMemory(&context, sizeof(CONTEXT));
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StackWalk64(
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machine_type,
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proc,
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thread,
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&frame,
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machine_type == IMAGE_FILE_MACHINE_I386 ? NULL : &context,
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NULL,
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SymFunctionTableAccess64,
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SymGetModuleBase64,
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NULL
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);
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}
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