mirror of
https://github.com/wolfpld/tracy.git
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104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
#include "TracyCallstack.hpp"
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#ifdef TRACY_HAS_CALLSTACK
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#if defined _WIN32 || defined __CYGWIN__
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# ifndef MAXLONG
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enum { SYMOPT_LOAD_LINES = 0x00000010 };
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typedef struct _SYMBOL_INFO
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{
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unsigned long SizeOfStruct;
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unsigned long TypeIndex;
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unsigned long long Reserved[2];
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unsigned long Index;
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unsigned long Size;
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unsigned long long ModBase;
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unsigned long Flags;
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unsigned long long Value;
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unsigned long long Address;
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unsigned long Register;
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unsigned long Scope;
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unsigned long Tag;
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unsigned long NameLen;
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unsigned long MaxNameLen;
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char Name[1];
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} SYMBOL_INFO;
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typedef struct _IMAGEHLP_LINE64
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{
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unsigned long SizeOfStruct;
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void* Key;
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unsigned LineNumber;
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char* FileName;
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unsigned long long Address;
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} IMAGEHLP_LINE64;
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extern "C" __declspec(dllimport) void* __stdcall GetCurrentProcess();
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extern "C" __declspec(dllimport) int __stdcall SymInitialize( void*, const char*, int );
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extern "C" __declspec(dllimport) unsigned long __stdcall SymSetOptions( unsigned long );
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extern "C" __declspec(dllimport) int __stdcall SymFromAddr( void*, unsigned long long, unsigned long long*, SYMBOL_INFO* );
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extern "C" __declspec(dllimport) int __stdcall SymGetLineFromAddr64( void*, unsigned long long, unsigned long*, IMAGEHLP_LINE64* );
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# else
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# include <dbghelp.h>
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# endif
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#endif
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namespace tracy
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{
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void InitCallstack()
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{
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SymInitialize( GetCurrentProcess(), nullptr, true );
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SymSetOptions( SYMOPT_LOAD_LINES );
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}
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CallstackEntry DecodeCallstackPtr( uint64_t ptr )
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{
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CallstackEntry ret;
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const auto proc = GetCurrentProcess();
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char buf[sizeof( SYMBOL_INFO ) + 255];
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auto si = (SYMBOL_INFO*)buf;
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si->SizeOfStruct = sizeof( SYMBOL_INFO );
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si->MaxNameLen = 255;
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if( SymFromAddr( proc, ptr, nullptr, si ) == 0 )
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{
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memcpy( si->Name, "[unknown]", 10 );
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si->NameLen = 9;
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}
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auto name = (char*)tracy_malloc( si->NameLen + 1 );
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memcpy( name, si->Name, si->NameLen );
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name[si->NameLen] = '\0';
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ret.name = name;
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const char* filename;
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IMAGEHLP_LINE64 line;
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unsigned long displacement = 0;
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line.SizeOfStruct = sizeof( IMAGEHLP_LINE64 );
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if( SymGetLineFromAddr64( proc, ptr, &displacement, &line ) == 0 )
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{
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filename = "[unknown]";
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ret.line = 0;
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}
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else
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{
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filename = line.FileName;
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ret.line = line.LineNumber;
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}
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const auto fsz = strlen( filename );
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auto file = (char*)tracy_malloc( fsz + 1 );
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memcpy( file, filename, fsz );
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file[fsz] = '\0';
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ret.file = file;
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return ret;
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}
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}
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#endif
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