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Univerxel/deps/tracy/client/TracyCallstack.cpp

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C++
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#include <new>
#include <stdio.h>
#include <string.h>
#include "TracyCallstack.hpp"
#include "TracyFastVector.hpp"
#include "../common/TracyAlloc.hpp"
#ifdef TRACY_HAS_CALLSTACK
#if TRACY_HAS_CALLSTACK == 1
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
# include <psapi.h>
# ifdef _MSC_VER
# pragma warning( push )
# pragma warning( disable : 4091 )
# endif
# include <dbghelp.h>
# ifdef _MSC_VER
# pragma warning( pop )
# endif
#elif TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 3 || TRACY_HAS_CALLSTACK == 4 || TRACY_HAS_CALLSTACK == 6
# include "../libbacktrace/backtrace.hpp"
# include <dlfcn.h>
# include <cxxabi.h>
#elif TRACY_HAS_CALLSTACK == 5
# include <dlfcn.h>
# include <cxxabi.h>
#endif
namespace tracy
{
static inline char* CopyString( const char* src, size_t sz )
{
assert( strlen( src ) == sz );
auto dst = (char*)tracy_malloc( sz + 1 );
memcpy( dst, src, sz );
dst[sz] = '\0';
return dst;
}
static inline char* CopyString( const char* src )
{
const auto sz = strlen( src );
auto dst = (char*)tracy_malloc( sz + 1 );
memcpy( dst, src, sz );
dst[sz] = '\0';
return dst;
}
#if TRACY_HAS_CALLSTACK == 1
enum { MaxCbTrace = 16 };
enum { MaxNameSize = 8*1024 };
int cb_num;
CallstackEntry cb_data[MaxCbTrace];
extern "C"
{
typedef unsigned long (__stdcall *t_RtlWalkFrameChain)( void**, unsigned long, unsigned long );
t_RtlWalkFrameChain RtlWalkFrameChain = 0;
}
#if defined __MINGW32__ && API_VERSION_NUMBER < 12
extern "C" {
// Actual required API_VERSION_NUMBER is unknown because it is undocumented. These functions are not present in at least v11.
DWORD IMAGEAPI SymAddrIncludeInlineTrace(HANDLE hProcess, DWORD64 Address);
BOOL IMAGEAPI SymQueryInlineTrace(HANDLE hProcess, DWORD64 StartAddress, DWORD StartContext, DWORD64 StartRetAddress,
DWORD64 CurAddress, LPDWORD CurContext, LPDWORD CurFrameIndex);
BOOL IMAGEAPI SymFromInlineContext(HANDLE hProcess, DWORD64 Address, ULONG InlineContext, PDWORD64 Displacement,
PSYMBOL_INFO Symbol);
BOOL IMAGEAPI SymGetLineFromInlineContext(HANDLE hProcess, DWORD64 qwAddr, ULONG InlineContext,
DWORD64 qwModuleBaseAddress, PDWORD pdwDisplacement, PIMAGEHLP_LINE64 Line64);
};
#endif
#ifndef __CYGWIN__
struct ModuleCache
{
uint64_t start;
uint64_t end;
char* name;
};
static FastVector<ModuleCache>* s_modCache;
#endif
void InitCallstack()
{
RtlWalkFrameChain = (t_RtlWalkFrameChain)GetProcAddress( GetModuleHandleA( "ntdll.dll" ), "RtlWalkFrameChain" );
SymInitialize( GetCurrentProcess(), nullptr, true );
SymSetOptions( SYMOPT_LOAD_LINES );
#ifndef __CYGWIN__
HMODULE mod[1024];
DWORD needed;
HANDLE proc = GetCurrentProcess();
s_modCache = (FastVector<ModuleCache>*)tracy_malloc( sizeof( FastVector<ModuleCache> ) );
new(s_modCache) FastVector<ModuleCache>( 512 );
if( EnumProcessModules( proc, mod, sizeof( mod ), &needed ) != 0 )
{
const auto sz = needed / sizeof( HMODULE );
for( size_t i=0; i<sz; i++ )
{
MODULEINFO info;
if( GetModuleInformation( proc, mod[i], &info, sizeof( info ) ) != 0 )
{
const auto base = uint64_t( info.lpBaseOfDll );
char name[1024];
const auto res = GetModuleFileNameA( mod[i], name, 1021 );
if( res > 0 )
{
auto ptr = name + res;
while( ptr > name && *ptr != '\\' && *ptr != '/' ) ptr--;
if( ptr > name ) ptr++;
const auto namelen = name + res - ptr;
auto cache = s_modCache->push_next();
cache->start = base;
cache->end = base + info.SizeOfImage;
cache->name = (char*)tracy_malloc( namelen+3 );
cache->name[0] = '[';
memcpy( cache->name+1, ptr, namelen );
cache->name[namelen+1] = ']';
cache->name[namelen+2] = '\0';
}
}
}
}
#endif
}
TRACY_API uintptr_t* CallTrace( int depth )
{
auto trace = (uintptr_t*)tracy_malloc( ( 1 + depth ) * sizeof( uintptr_t ) );
const auto num = RtlWalkFrameChain( (void**)( trace + 1 ), depth, 0 );
*trace = num;
return trace;
}
const char* DecodeCallstackPtrFast( uint64_t ptr )
{
static char ret[MaxNameSize];
const auto proc = GetCurrentProcess();
char buf[sizeof( SYMBOL_INFO ) + MaxNameSize];
auto si = (SYMBOL_INFO*)buf;
si->SizeOfStruct = sizeof( SYMBOL_INFO );
si->MaxNameLen = MaxNameSize;
if( SymFromAddr( proc, ptr, nullptr, si ) == 0 )
{
*ret = '\0';
}
else
{
memcpy( ret, si->Name, si->NameLen );
ret[si->NameLen] = '\0';
}
return ret;
}
static const char* GetModuleName( uint64_t addr )
{
if( ( addr & 0x8000000000000000 ) != 0 ) return "[kernel]";
#ifndef __CYGWIN__
for( auto& v : *s_modCache )
{
if( addr >= v.start && addr < v.end )
{
return v.name;
}
}
HMODULE mod[1024];
DWORD needed;
HANDLE proc = GetCurrentProcess();
if( EnumProcessModules( proc, mod, sizeof( mod ), &needed ) != 0 )
{
const auto sz = needed / sizeof( HMODULE );
for( size_t i=0; i<sz; i++ )
{
MODULEINFO info;
if( GetModuleInformation( proc, mod[i], &info, sizeof( info ) ) != 0 )
{
const auto base = uint64_t( info.lpBaseOfDll );
if( addr >= base && addr < base + info.SizeOfImage )
{
char name[1024];
const auto res = GetModuleFileNameA( mod[i], name, 1021 );
if( res > 0 )
{
auto ptr = name + res;
while( ptr > name && *ptr != '\\' && *ptr != '/' ) ptr--;
if( ptr > name ) ptr++;
const auto namelen = name + res - ptr;
auto cache = s_modCache->push_next();
cache->start = base;
cache->end = base + info.SizeOfImage;
cache->name = (char*)tracy_malloc( namelen+3 );
cache->name[0] = '[';
memcpy( cache->name+1, ptr, namelen );
cache->name[namelen+1] = ']';
cache->name[namelen+2] = '\0';
return cache->name;
}
}
}
}
}
#endif
return "[unknown]";
}
CallstackSymbolData DecodeSymbolAddress( uint64_t ptr )
{
CallstackSymbolData sym;
IMAGEHLP_LINE64 line;
DWORD displacement = 0;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
if( SymGetLineFromAddr64( GetCurrentProcess(), ptr, &displacement, &line ) == 0 )
{
sym.file = "[unknown]";
sym.line = 0;
}
else
{
sym.file = line.FileName;
sym.line = line.LineNumber;
}
sym.needFree = false;
return sym;
}
CallstackSymbolData DecodeCodeAddress( uint64_t ptr )
{
CallstackSymbolData sym;
const auto proc = GetCurrentProcess();
bool done = false;
IMAGEHLP_LINE64 line;
DWORD displacement = 0;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
#ifndef __CYGWIN__
DWORD inlineNum = SymAddrIncludeInlineTrace( proc, ptr );
DWORD ctx = 0;
DWORD idx;
BOOL doInline = FALSE;
if( inlineNum != 0 ) doInline = SymQueryInlineTrace( proc, ptr, 0, ptr, ptr, &ctx, &idx );
if( doInline )
{
if( SymGetLineFromInlineContext( proc, ptr, ctx, 0, &displacement, &line ) != 0 )
{
sym.file = line.FileName;
sym.line = line.LineNumber;
done = true;
}
}
#endif
if( !done )
{
if( SymGetLineFromAddr64( proc, ptr, &displacement, &line ) == 0 )
{
sym.file = "[unknown]";
sym.line = 0;
}
else
{
sym.file = line.FileName;
sym.line = line.LineNumber;
}
}
sym.needFree = false;
return sym;
}
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
int write;
const auto proc = GetCurrentProcess();
#ifndef __CYGWIN__
DWORD inlineNum = SymAddrIncludeInlineTrace( proc, ptr );
if( inlineNum > MaxCbTrace - 1 ) inlineNum = MaxCbTrace - 1;
DWORD ctx = 0;
DWORD idx;
BOOL doInline = FALSE;
if( inlineNum != 0 ) doInline = SymQueryInlineTrace( proc, ptr, 0, ptr, ptr, &ctx, &idx );
if( doInline )
{
write = inlineNum;
cb_num = 1 + inlineNum;
}
else
#endif
{
write = 0;
cb_num = 1;
}
char buf[sizeof( SYMBOL_INFO ) + MaxNameSize];
auto si = (SYMBOL_INFO*)buf;
si->SizeOfStruct = sizeof( SYMBOL_INFO );
si->MaxNameLen = MaxNameSize;
const auto moduleName = GetModuleName( ptr );
const auto symValid = SymFromAddr( proc, ptr, nullptr, si ) != 0;
IMAGEHLP_LINE64 line;
DWORD displacement = 0;
line.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
{
const char* filename;
if( SymGetLineFromAddr64( proc, ptr, &displacement, &line ) == 0 )
{
filename = "[unknown]";
cb_data[write].line = 0;
}
else
{
filename = line.FileName;
cb_data[write].line = line.LineNumber;
}
cb_data[write].name = symValid ? CopyString( si->Name, si->NameLen ) : CopyString( moduleName );
cb_data[write].file = CopyString( filename );
if( symValid )
{
cb_data[write].symLen = si->Size;
cb_data[write].symAddr = si->Address;
}
else
{
cb_data[write].symLen = 0;
cb_data[write].symAddr = 0;
}
}
#ifndef __CYGWIN__
if( doInline )
{
for( DWORD i=0; i<inlineNum; i++ )
{
auto& cb = cb_data[i];
const auto symInlineValid = SymFromInlineContext( proc, ptr, ctx, nullptr, si ) != 0;
const char* filename;
if( SymGetLineFromInlineContext( proc, ptr, ctx, 0, &displacement, &line ) == 0 )
{
filename = "[unknown]";
cb.line = 0;
}
else
{
filename = line.FileName;
cb.line = line.LineNumber;
}
cb.name = symInlineValid ? CopyString( si->Name, si->NameLen ) : CopyString( moduleName );
cb.file = CopyString( filename );
if( symInlineValid )
{
cb.symLen = si->Size;
cb.symAddr = si->Address;
}
else
{
cb.symLen = 0;
cb.symAddr = 0;
}
ctx++;
}
}
#endif
return { cb_data, uint8_t( cb_num ), moduleName };
}
#elif TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 3 || TRACY_HAS_CALLSTACK == 4 || TRACY_HAS_CALLSTACK == 6
enum { MaxCbTrace = 16 };
struct backtrace_state* cb_bts;
int cb_num;
CallstackEntry cb_data[MaxCbTrace];
int cb_fixup;
void InitCallstack()
{
cb_bts = backtrace_create_state( nullptr, 0, nullptr, nullptr );
}
static int FastCallstackDataCb( void* data, uintptr_t pc, uintptr_t lowaddr, const char* fn, int lineno, const char* function )
{
if( function )
{
strcpy( (char*)data, function );
}
else
{
const char* symname = nullptr;
auto vptr = (void*)pc;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) )
{
symname = dlinfo.dli_sname;
}
if( symname )
{
strcpy( (char*)data, symname );
}
else
{
*(char*)data = '\0';
}
}
return 1;
}
static void FastCallstackErrorCb( void* data, const char* /*msg*/, int /*errnum*/ )
{
*(char*)data = '\0';
}
const char* DecodeCallstackPtrFast( uint64_t ptr )
{
static char ret[1024];
backtrace_pcinfo( cb_bts, ptr, FastCallstackDataCb, FastCallstackErrorCb, ret );
return ret;
}
static int SymbolAddressDataCb( void* data, uintptr_t pc, uintptr_t lowaddr, const char* fn, int lineno, const char* function )
{
auto& sym = *(CallstackSymbolData*)data;
if( !fn )
{
sym.file = "[unknown]";
sym.line = 0;
sym.needFree = false;
}
else
{
sym.file = CopyString( fn );
sym.line = lineno;
sym.needFree = true;
}
return 1;
}
static void SymbolAddressErrorCb( void* data, const char* /*msg*/, int /*errnum*/ )
{
auto& sym = *(CallstackSymbolData*)data;
sym.file = "[unknown]";
sym.line = 0;
sym.needFree = false;
}
CallstackSymbolData DecodeSymbolAddress( uint64_t ptr )
{
CallstackSymbolData sym;
backtrace_pcinfo( cb_bts, ptr, SymbolAddressDataCb, SymbolAddressErrorCb, &sym );
return sym;
}
CallstackSymbolData DecodeCodeAddress( uint64_t ptr )
{
return DecodeSymbolAddress( ptr );
}
static int CallstackDataCb( void* /*data*/, uintptr_t pc, uintptr_t lowaddr, const char* fn, int lineno, const char* function )
{
enum { DemangleBufLen = 64*1024 };
char demangled[DemangleBufLen];
cb_data[cb_num].symLen = 0;
cb_data[cb_num].symAddr = (uint64_t)lowaddr;
if( !fn && !function )
{
const char* symname = nullptr;
auto vptr = (void*)pc;
ptrdiff_t symoff = 0;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) )
{
symname = dlinfo.dli_sname;
symoff = (char*)pc - (char*)dlinfo.dli_saddr;
if( symname && symname[0] == '_' )
{
size_t len = DemangleBufLen;
int status;
abi::__cxa_demangle( symname, demangled, &len, &status );
if( status == 0 )
{
symname = demangled;
}
}
}
if( !symname ) symname = "[unknown]";
if( symoff == 0 )
{
cb_data[cb_num].name = CopyString( symname );
}
else
{
char buf[32];
const auto offlen = sprintf( buf, " + %td", symoff );
const auto namelen = strlen( symname );
auto name = (char*)tracy_malloc( namelen + offlen + 1 );
memcpy( name, symname, namelen );
memcpy( name + namelen, buf, offlen );
name[namelen + offlen] = '\0';
cb_data[cb_num].name = name;
}
cb_data[cb_num].file = CopyString( "[unknown]" );
cb_data[cb_num].line = 0;
}
else
{
if( !fn ) fn = "[unknown]";
if( !function )
{
function = "[unknown]";
}
else
{
if( function[0] == '_' )
{
size_t len = DemangleBufLen;
int status;
abi::__cxa_demangle( function, demangled, &len, &status );
if( status == 0 )
{
function = demangled;
}
}
}
cb_data[cb_num].name = CopyString( function );
cb_data[cb_num].file = CopyString( fn );
cb_data[cb_num].line = lineno;
}
if( ++cb_num >= MaxCbTrace )
{
return 1;
}
else
{
return 0;
}
}
static void CallstackErrorCb( void* /*data*/, const char* /*msg*/, int /*errnum*/ )
{
for( int i=0; i<cb_num; i++ )
{
tracy_free( (void*)cb_data[i].name );
tracy_free( (void*)cb_data[i].file );
}
cb_data[0].name = CopyString( "[error]" );
cb_data[0].file = CopyString( "[error]" );
cb_data[0].line = 0;
cb_num = 1;
}
void SymInfoCallback( void* /*data*/, uintptr_t pc, const char* symname, uintptr_t symval, uintptr_t symsize )
{
cb_data[cb_num-1].symLen = (uint32_t)symsize;
cb_data[cb_num-1].symAddr = (uint64_t)symval;
}
void SymInfoError( void* /*data*/, const char* /*msg*/, int /*errnum*/ )
{
cb_data[cb_num-1].symLen = 0;
cb_data[cb_num-1].symAddr = 0;
}
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
cb_num = 0;
backtrace_pcinfo( cb_bts, ptr, CallstackDataCb, CallstackErrorCb, nullptr );
assert( cb_num > 0 );
backtrace_syminfo( cb_bts, ptr, SymInfoCallback, SymInfoError, nullptr );
const char* symloc = nullptr;
Dl_info dlinfo;
if( dladdr( (void*)ptr, &dlinfo ) ) symloc = dlinfo.dli_fname;
return { cb_data, uint8_t( cb_num ), symloc ? symloc : "[unknown]" };
}
#elif TRACY_HAS_CALLSTACK == 5
void InitCallstack()
{
}
const char* DecodeCallstackPtrFast( uint64_t ptr )
{
static char ret[1024];
auto vptr = (void*)ptr;
const char* symname = nullptr;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) && dlinfo.dli_sname )
{
symname = dlinfo.dli_sname;
}
if( symname )
{
strcpy( ret, symname );
}
else
{
*ret = '\0';
}
return ret;
}
CallstackSymbolData DecodeSymbolAddress( uint64_t ptr )
{
const char* symloc = nullptr;
Dl_info dlinfo;
if( dladdr( (void*)ptr, &dlinfo ) ) symloc = dlinfo.dli_fname;
if( !symloc ) symloc = "[unknown]";
return CallstackSymbolData { symloc, 0, false };
}
CallstackSymbolData DecodeCodeAddress( uint64_t ptr )
{
return DecodeSymbolAddress( ptr );
}
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
static CallstackEntry cb;
cb.line = 0;
char* demangled = nullptr;
const char* symname = nullptr;
const char* symloc = nullptr;
auto vptr = (void*)ptr;
ptrdiff_t symoff = 0;
void* symaddr = nullptr;
Dl_info dlinfo;
if( dladdr( vptr, &dlinfo ) )
{
symloc = dlinfo.dli_fname;
symname = dlinfo.dli_sname;
symoff = (char*)ptr - (char*)dlinfo.dli_saddr;
symaddr = dlinfo.dli_saddr;
if( symname && symname[0] == '_' )
{
size_t len = 0;
int status;
demangled = abi::__cxa_demangle( symname, nullptr, &len, &status );
if( status == 0 )
{
symname = demangled;
}
}
}
if( !symname ) symname = "[unknown]";
if( !symloc ) symloc = "[unknown]";
if( symoff == 0 )
{
cb.name = CopyString( symname );
}
else
{
char buf[32];
const auto offlen = sprintf( buf, " + %td", symoff );
const auto namelen = strlen( symname );
auto name = (char*)tracy_malloc( namelen + offlen + 1 );
memcpy( name, symname, namelen );
memcpy( name + namelen, buf, offlen );
name[namelen + offlen] = '\0';
cb.name = name;
}
cb.file = CopyString( "[unknown]" );
cb.symLen = 0;
cb.symAddr = (uint64_t)symaddr;
if( demangled ) free( demangled );
return { &cb, 1, symloc };
}
#endif
}
#endif
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