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Decode callstack frames using libbacktrace.
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@ -14,6 +14,7 @@
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# pragma warning( pop )
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# endif
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#elif TRACY_HAS_CALLSTACK >= 2
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# include "../libbacktrace/backtrace.hpp"
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# include <dlfcn.h>
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# include <cxxabi.h>
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#endif
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@ -84,170 +85,146 @@ CallstackEntry DecodeCallstackPtr( uint64_t ptr )
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return ret;
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}
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#elif TRACY_HAS_CALLSTACK == 2
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#elif TRACY_HAS_CALLSTACK >= 2
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CallstackEntry DecodeCallstackPtr( uint64_t ptr )
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enum { MaxCbTrace = 1 };
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struct backtrace_state* cb_bts;
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int cb_num;
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CallstackEntry cb_data[MaxCbTrace];
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void InitCallstack()
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{
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CallstackEntry ret;
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ret.line = 0;
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char* demangled = nullptr;
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const char* symname = nullptr;
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const char* symloc = nullptr;
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auto vptr = (void*)ptr;
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char** sym = nullptr;
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ptrdiff_t symoff = 0;
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Dl_info dlinfo;
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if( dladdr( vptr, &dlinfo ) )
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{
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symloc = dlinfo.dli_fname;
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symname = dlinfo.dli_sname;
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symoff = (char*)ptr - (char*)dlinfo.dli_saddr;
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if( symname && symname[0] == '_' )
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{
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size_t len = 0;
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int status;
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demangled = abi::__cxa_demangle( symname, nullptr, &len, &status );
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if( status == 0 )
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{
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symname = demangled;
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}
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}
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}
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if( !symname )
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{
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symname = "[unknown]";
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}
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if( !symloc )
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{
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symloc = "[unknown]";
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}
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if( symoff == 0 )
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{
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const auto namelen = strlen( symname );
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auto name = (char*)tracy_malloc( namelen + 1 );
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memcpy( name, symname, namelen );
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name[namelen] = '\0';
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ret.name = name;
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}
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else
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{
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char buf[32];
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sprintf( buf, " + %td", symoff );
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const auto offlen = strlen( buf );
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const auto namelen = strlen( symname );
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auto name = (char*)tracy_malloc( namelen + offlen + 1 );
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memcpy( name, symname, namelen );
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memcpy( name + namelen, buf, offlen );
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name[namelen + offlen] = '\0';
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ret.name = name;
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}
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char buf[32];
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sprintf( buf, " [%p]", (void*)ptr );
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const auto addrlen = strlen( buf );
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const auto loclen = strlen( symloc );
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auto loc = (char*)tracy_malloc( loclen + addrlen + 1 );
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memcpy( loc, symloc, loclen );
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memcpy( loc + loclen, buf, addrlen );
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loc[loclen + addrlen] = '\0';
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ret.file = loc;
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if( sym ) free( sym );
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if( demangled ) free( demangled );
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return ret;
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cb_bts = backtrace_create_state( nullptr, 0, nullptr, nullptr );
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}
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#elif TRACY_HAS_CALLSTACK == 3
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CallstackEntry DecodeCallstackPtr( uint64_t ptr )
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static inline char* CopyString( const char* src )
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{
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CallstackEntry ret;
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ret.line = 0;
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const auto sz = strlen( src );
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auto dst = (char*)tracy_malloc( sz + 1 );
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memcpy( dst, src, sz );
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dst[sz] = '\0';
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return dst;
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}
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char* demangled = nullptr;
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const char* symname = nullptr;
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const char* symloc = nullptr;
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auto vptr = (void*)ptr;
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char** sym = nullptr;
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ptrdiff_t symoff = 0;
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static int CallstackDataCb( void* data, uintptr_t pc, const char* fn, int lineno, const char* function )
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{
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enum { DemangleBufLen = 64*1024 };
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char demangled[DemangleBufLen];
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Dl_info dlinfo;
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if( dladdr( vptr, &dlinfo ) )
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if( !fn && !function )
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{
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symloc = dlinfo.dli_fname;
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symname = dlinfo.dli_sname;
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symoff = (char*)ptr - (char*)dlinfo.dli_saddr;
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const char* symname = nullptr;
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const char* symloc = nullptr;
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auto vptr = (void*)pc;
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ptrdiff_t symoff = 0;
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if( symname && symname[0] == '_' )
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Dl_info dlinfo;
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if( dladdr( vptr, &dlinfo ) )
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{
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size_t len = 0;
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int status;
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demangled = abi::__cxa_demangle( symname, nullptr, &len, &status );
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if( status == 0 )
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symloc = dlinfo.dli_fname;
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symname = dlinfo.dli_sname;
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symoff = (char*)pc - (char*)dlinfo.dli_saddr;
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if( symname && symname[0] == '_' )
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{
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symname = demangled;
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size_t len = DemangleBufLen;
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int status;
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abi::__cxa_demangle( symname, demangled, &len, &status );
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if( status == 0 )
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{
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symname = demangled;
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}
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}
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}
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}
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if( !symname )
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{
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sym = backtrace_symbols( &vptr, 1 );
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if( !sym )
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if( !symname ) symname = "[unknown]";
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if( !symloc ) symloc = "[unknown]";
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if( symoff == 0 )
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{
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symname = "[unknown]";
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cb_data[cb_num].name = CopyString( symname );
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}
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else
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{
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symname = *sym;
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char buf[32];
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const auto offlen = sprintf( buf, " + %td", symoff );
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const auto namelen = strlen( symname );
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auto name = (char*)tracy_malloc( namelen + offlen + 1 );
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memcpy( name, symname, namelen );
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memcpy( name + namelen, buf, offlen );
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name[namelen + offlen] = '\0';
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cb_data[cb_num].name = name;
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}
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}
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if( !symloc )
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{
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symloc = "[unknown]";
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}
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if( symoff == 0 )
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{
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const auto namelen = strlen( symname );
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auto name = (char*)tracy_malloc( namelen + 1 );
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memcpy( name, symname, namelen );
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name[namelen] = '\0';
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ret.name = name;
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char buf[32];
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const auto addrlen = sprintf( buf, " [%p]", (void*)pc );
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const auto loclen = strlen( symloc );
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auto loc = (char*)tracy_malloc( loclen + addrlen + 1 );
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memcpy( loc, symloc, loclen );
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memcpy( loc + loclen, buf, addrlen );
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loc[loclen + addrlen] = '\0';
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cb_data[cb_num].file = loc;
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cb_data[cb_num].line = 0;
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}
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else
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{
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char buf[32];
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sprintf( buf, " + %td", symoff );
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const auto offlen = strlen( buf );
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const auto namelen = strlen( symname );
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auto name = (char*)tracy_malloc( namelen + offlen + 1 );
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memcpy( name, symname, namelen );
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memcpy( name + namelen, buf, offlen );
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name[namelen + offlen] = '\0';
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ret.name = name;
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if( !fn ) fn = "[unknown]";
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if( !function )
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{
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function = "[unknown]";
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}
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else
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{
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if( function[0] == '_' )
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{
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size_t len = DemangleBufLen;
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int status;
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abi::__cxa_demangle( function, demangled, &len, &status );
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if( status == 0 )
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{
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function = demangled;
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}
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}
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}
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cb_data[cb_num].name = CopyString( function );
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cb_data[cb_num].file = CopyString( fn );
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cb_data[cb_num].line = lineno;
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}
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char buf[32];
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sprintf( buf, " [%p]", (void*)ptr );
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const auto addrlen = strlen( buf );
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const auto loclen = strlen( symloc );
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auto loc = (char*)tracy_malloc( loclen + addrlen + 1 );
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memcpy( loc, symloc, loclen );
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memcpy( loc + loclen, buf, addrlen );
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loc[loclen + addrlen] = '\0';
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ret.file = loc;
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if( ++cb_num >= MaxCbTrace )
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{
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return 1;
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}
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else
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{
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return 0;
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}
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}
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if( sym ) free( sym );
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if( demangled ) free( demangled );
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static void CallstackErrorCb( void* data, const char* msg, int errnum )
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{
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for( int i=0; i<cb_num; i++ )
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{
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tracy_free( (void*)cb_data[i].name );
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tracy_free( (void*)cb_data[i].file );
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}
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return ret;
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cb_data[0].name = CopyString( "[error]" );
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cb_data[0].file = CopyString( "[error]" );
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cb_data[0].line = 0;
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cb_num = 1;
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}
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CallstackEntry DecodeCallstackPtr( uint64_t ptr )
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{
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cb_num = 0;
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backtrace_pcinfo( cb_bts, ptr, CallstackDataCb, CallstackErrorCb, nullptr );
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assert( cb_num == 1 );
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return cb_data[0];
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}
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#endif
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@ -42,11 +42,10 @@ struct CallstackEntry
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};
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CallstackEntry DecodeCallstackPtr( uint64_t ptr );
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void InitCallstack();
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#if TRACY_HAS_CALLSTACK == 1
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void InitCallstack();
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static tracy_force_inline void* Callstack( int depth )
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{
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assert( depth >= 1 && depth < 63 );
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@ -60,8 +59,6 @@ static tracy_force_inline void* Callstack( int depth )
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#elif TRACY_HAS_CALLSTACK == 2
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static tracy_force_inline void InitCallstack() {}
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struct BacktraceState
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{
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void** current;
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@ -95,8 +92,6 @@ static tracy_force_inline void* Callstack( int depth )
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#elif TRACY_HAS_CALLSTACK == 3
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static tracy_force_inline void InitCallstack() {}
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static tracy_force_inline void* Callstack( int depth )
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{
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assert( depth >= 1 );
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