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Implement retrieval of kernel symbol names.

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Bartosz Taudul 2021-06-12 15:27:35 +02:00
parent 0168ab6535
commit 4dc05ab858
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1 changed files with 31 additions and 9 deletions
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26
client/TracyCallstack.cpp
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@ -559,7 +559,7 @@ static void InitKernelSymbols()
fclose( f );
if( tmpSym.empty() ) return;
std::sort( tmpSym.begin(), tmpSym.end(), []( const KernelSymbol& lhs, const KernelSymbol& rhs ) { return lhs.addr < rhs.addr; } );
std::sort( tmpSym.begin(), tmpSym.end(), []( const KernelSymbol& lhs, const KernelSymbol& rhs ) { return lhs.addr > rhs.addr; } );
s_kernelSymCnt = tmpSym.size();
s_kernelSym = (KernelSymbol*)tracy_malloc_fast( sizeof( KernelSymbol ) * s_kernelSymCnt );
memcpy( s_kernelSym, tmpSym.data(), sizeof( KernelSymbol ) * s_kernelSymCnt );
@ -802,7 +802,8 @@ void SymInfoError( void* /*data*/, const char* /*msg*/, int /*errnum*/ )
CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
{
InitRpmalloc();
if( ptr >> 63 == 0 )
{
cb_num = 0;
backtrace_pcinfo( cb_bts, ptr, CallstackDataCb, CallstackErrorCb, nullptr );
assert( cb_num > 0 );
@ -815,6 +816,27 @@ CallstackEntryData DecodeCallstackPtr( uint64_t ptr )
return { cb_data, uint8_t( cb_num ), symloc ? symloc : "[unknown]" };
}
else if( s_kernelSym )
{
auto it = std::lower_bound( s_kernelSym, s_kernelSym + s_kernelSymCnt, ptr, []( const KernelSymbol& lhs, const uint64_t& rhs ) { return lhs.addr > rhs; } );
if( it != s_kernelSym + s_kernelSymCnt )
{
cb_data[0].name = CopyStringFast( it->name );
cb_data[0].file = CopyStringFast( "<kernel>" );
cb_data[0].line = 0;
cb_data[0].symLen = 0;
cb_data[0].symAddr = it->addr;
return { cb_data, 1, it->mod ? it->mod : "<kernel>" };
}
}
cb_data[0].name = CopyStringFast( "[unknown]" );
cb_data[0].file = CopyStringFast( "<kernel>" );
cb_data[0].line = 0;
cb_data[0].symLen = 0;
cb_data[0].symAddr = 0;
return { cb_data, 1, "<kernel>" };
}
#elif TRACY_HAS_CALLSTACK == 5