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Query jump and call target addresses.

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This enables discovery of target function names (and recursively, their
bodies), even if such function has no samples and is not present in any
callstack.
This commit is contained in:
Bartosz Taudul 2023-01-22 02:06:43 +01:00
parent baaed68bcf
commit c59413ab56
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GPG Key ID: B7FE2008B7575DF3
1 changed files with 44 additions and 3 deletions
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47
server/TracyWorker.cpp
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@ -3917,19 +3917,60 @@ void Worker::AddSymbolCode( uint64_t ptr, const char* data, size_t sz )
break;
}
if( rval != CS_ERR_OK ) return;
cs_option( handle, CS_OPT_DETAIL, CS_OPT_ON );
cs_insn* insn;
size_t cnt = cs_disasm( handle, (const uint8_t*)code, sz, ptr, 0, &insn );
if( cnt > 0 )
{
for( size_t i=0; i<cnt; i++ )
{
const auto addr = insn[i].address;
const auto ptr = PackPointer( addr );
if( m_data.callstackFrameMap.find( ptr ) == m_data.callstackFrameMap.end() )
const auto& op = insn[i];
const auto addr = op.address;
if( m_data.callstackFrameMap.find( PackPointer( addr ) ) == m_data.callstackFrameMap.end() )
{
m_pendingCallstackFrames++;
Query( ServerQueryCallstackFrame, addr );
}
uint64_t callAddr = 0;
const auto& detail = *op.detail;
for( auto j=0; j<detail.groups_count; j++ )
{
if( detail.groups[j] == CS_GRP_JUMP || detail.groups[j] == CS_GRP_CALL )
{
switch( GetCpuArch() )
{
case CpuArchX86:
case CpuArchX64:
if( detail.x86.op_count == 1 && detail.x86.operands[0].type == X86_OP_IMM )
{
callAddr = (uint64_t)detail.x86.operands[0].imm;
}
break;
case CpuArchArm32:
if( detail.arm.op_count == 1 && detail.arm.operands[0].type == ARM_OP_IMM )
{
callAddr = (uint64_t)detail.arm.operands[0].imm;
}
break;
case CpuArchArm64:
if( detail.arm64.op_count == 1 && detail.arm64.operands[0].type == ARM64_OP_IMM )
{
callAddr = (uint64_t)detail.arm64.operands[0].imm;
}
break;
default:
assert( false );
break;
}
if( callAddr != 0 ) break;
}
}
if( callAddr != 0 && m_data.callstackFrameMap.find( PackPointer( callAddr ) ) == m_data.callstackFrameMap.end() )
{
m_pendingCallstackFrames++;
Query( ServerQueryCallstackFrame, callAddr );
}
}
cs_free( insn, cnt );
}