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Decode jump/call addresses.

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This commit is contained in:
Bartosz Taudul 2020-03-28 00:53:48 +01:00
parent fd3b9ca1e5
commit 22cae56ab1
2 changed files with 72 additions and 1 deletions
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72
server/TracySourceView.cpp
View File

@ -117,6 +117,7 @@ bool SourceView::Disassemble( uint64_t symAddr, const Worker& worker )
break;
}
if( rval != CS_ERR_OK ) return false;
cs_option( handle, CS_OPT_DETAIL, CS_OPT_ON );
cs_insn* insn;
size_t cnt = cs_disasm( handle, (const uint8_t*)code, len, symAddr, 0, &insn );
if( cnt > 0 )
@ -124,7 +125,76 @@ bool SourceView::Disassemble( uint64_t symAddr, const Worker& worker )
m_asm.reserve( cnt );
for( size_t i=0; i<cnt; i++ )
{
m_asm.emplace_back( AsmLine { insn[i].address, insn[i].mnemonic, insn[i].op_str } );
const auto& op = insn[i];
const auto& detail = *op.detail;
bool hasJump = false;
switch( arch )
{
case CpuArchX86:
case CpuArchX64:
for( auto j=0; j<detail.groups_count; j++ )
{
if( detail.groups[j] == X86_GRP_JUMP || detail.groups[j] == X86_GRP_CALL )
{
hasJump = true;
break;
}
}
break;
case CpuArchArm32:
for( auto j=0; j<detail.groups_count; j++ )
{
if( detail.groups[j] == ARM_GRP_JUMP || detail.groups[j] == ARM_GRP_CALL )
{
hasJump = true;
break;
}
}
break;
case CpuArchArm64:
for( auto j=0; j<detail.groups_count; j++ )
{
if( detail.groups[j] == ARM64_GRP_JUMP || detail.groups[j] == ARM64_GRP_CALL )
{
hasJump = true;
break;
}
}
break;
default:
assert( false );
break;
}
uint64_t jumpAddr = 0;
if( hasJump )
{
switch( arch )
{
case CpuArchX86:
case CpuArchX64:
if( detail.x86.op_count == 1 && detail.x86.operands[0].type == X86_OP_IMM )
{
jumpAddr = (uint64_t)detail.x86.operands[0].imm;
}
break;
case CpuArchArm32:
if( detail.arm.op_count == 1 && detail.arm.operands[0].type == ARM_OP_IMM )
{
jumpAddr = (uint64_t)detail.arm.operands[0].imm;
}
break;
case CpuArchArm64:
if( detail.arm64.op_count == 1 && detail.arm64.operands[0].type == ARM64_OP_IMM )
{
jumpAddr = (uint64_t)detail.arm64.operands[0].imm;
}
break;
default:
assert( false );
break;
}
}
m_asm.emplace_back( AsmLine { op.address, jumpAddr, op.mnemonic, op.op_str } );
}
cs_free( insn, cnt );
}

1
server/TracySourceView.hpp
View File

@ -19,6 +19,7 @@ class SourceView
struct AsmLine
{
uint64_t addr;
uint64_t jumpAddr;
std::string mnemonic;
std::string operands;
};