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Code Issues Releases Wiki Activity

Retrieve symbol addresses on unix.

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This commit is contained in:
Bartosz Taudul 2020-02-26 02:25:45 +01:00
parent 9231261d73
commit 890cec9872
1 changed files with 19 additions and 0 deletions
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19
client/TracyCallstack.cpp
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@ -322,6 +322,7 @@ enum { MaxCbTrace = 16 };
struct backtrace_state* cb_bts;
int cb_num;
CallstackEntry cb_data[MaxCbTrace];
int cb_fixup;
void InitCallstack()
{
@ -372,6 +373,8 @@ static int CallstackDataCb( void* /*data*/, uintptr_t pc, const char* fn, int li
enum { DemangleBufLen = 64*1024 };
char demangled[DemangleBufLen];
cb_data[cb_num].symAddr = (uint64_t)pc;
if( !fn && !function )
{
const char* symname = nullptr;
@ -479,12 +482,28 @@ static void CallstackErrorCb( void* /*data*/, const char* /*msg*/, int /*errnum*
cb_num = 1;
}
void SymInfoCallback( void* /*data*/, uintptr_t pc, const char* symname, uintptr_t symval, uintptr_t symsize )
{
cb_data[cb_fixup].symAddr = (uint64_t)symval;
}
void SymInfoError( void* /*data*/, const char* /*msg*/, int /*errnum*/ )
{
cb_data[cb_fixup].symAddr = 0;
}
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
cb_num = 0;
backtrace_pcinfo( cb_bts, ptr, CallstackDataCb, CallstackErrorCb, nullptr );
assert( cb_num > 0 );
for( int i=0; i<cb_num; i++ )
{
cb_fixup = i;
backtrace_syminfo( cb_bts, cb_data[i].symAddr, SymInfoCallback, SymInfoError, nullptr );
}
const char* symloc = nullptr;
Dl_info dlinfo;
if( dladdr( (void*)ptr, &dlinfo ) ) symloc = dlinfo.dli_fname;