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Code Issues Releases Wiki Activity

Allow displaying machine code bytes in disassembly.

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This commit is contained in:
Bartosz Taudul 2020-04-19 16:06:45 +02:00
parent afb9bdce86
commit e48095062b
2 changed files with 24 additions and 3 deletions
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25
server/TracySourceView.cpp
View File

@ -36,6 +36,7 @@ SourceView::SourceView( ImFont* font )
, m_codeLen( 0 )
, m_highlightAddr( 0 )
, m_asmRelative( false )
, m_asmBytes( false )
, m_asmShowSourceLocation( true )
, m_calcInlineStats( true )
, m_showJumps( true )
@ -178,6 +179,7 @@ bool SourceView::Disassemble( uint64_t symAddr, const Worker& worker )
if( cnt > 0 )
{
if( insn[cnt-1].address - symAddr + insn[cnt-1].size < len ) m_disasmFail = insn[cnt-1].address - symAddr;
int bytesMax = 0;
int mLenMax = 0;
m_asm.reserve( cnt );
for( size_t i=0; i<cnt; i++ )
@ -253,6 +255,7 @@ bool SourceView::Disassemble( uint64_t symAddr, const Worker& worker )
m_asm.emplace_back( AsmLine { op.address, jumpAddr, op.mnemonic, op.op_str, (uint8_t)op.size } );
const auto mLen = strlen( op.mnemonic );
if( mLen > mLenMax ) mLenMax = mLen;
if( op.size > bytesMax ) bytesMax = op.size;
uint32_t mLineMax = 0;
uint32_t srcline;
@ -273,6 +276,7 @@ bool SourceView::Disassemble( uint64_t symAddr, const Worker& worker )
}
cs_free( insn, cnt );
m_maxMnemonicLen = mLenMax + 2;
m_maxAsmBytes = bytesMax;
if( !m_jumpTable.empty() )
{
struct JumpRange
@ -944,6 +948,10 @@ uint64_t SourceView::RenderSymbolAsmView( uint32_t iptotal, unordered_flat_map<u
ImGui::SameLine();
ImGui::Spacing();
ImGui::SameLine();
SmallCheckbox( ICON_FA_MICROCHIP " Show bytes", &m_asmBytes );
ImGui::SameLine();
ImGui::Spacing();
ImGui::SameLine();
SmallCheckbox( ICON_FA_SHARE " Draw jumps", &m_showJumps );
ImGui::BeginChild( "##asmView", ImVec2( 0, 0 ), true, ImGuiWindowFlags_NoMove );
@ -1008,7 +1016,7 @@ uint64_t SourceView::RenderSymbolAsmView( uint32_t iptotal, unordered_flat_map<u
const auto ts = ImGui::CalcTextSize( " " );
const auto th2 = floor( ts.y / 2 );
const auto th4 = floor( ts.y / 4 );
const auto xoff = ( iptotal == 0 ? 0 : ( 7 * ts.x + ts.y ) ) + (3+maxAddrLen) * ts.x + ( ( m_asmShowSourceLocation && !m_sourceFiles.empty() ) ? 36 * ts.x : 0 );
const auto xoff = ( iptotal == 0 ? 0 : ( 7 * ts.x + ts.y ) ) + (3+maxAddrLen) * ts.x + ( ( m_asmShowSourceLocation && !m_sourceFiles.empty() ) ? 36 * ts.x : 0 ) + ( m_asmBytes ? m_maxAsmBytes*3 * ts.x : 0 );
const auto minAddr = m_asm[clipper.DisplayStart].addr;
const auto maxAddr = m_asm[clipper.DisplayEnd-1].addr;
const auto mjl = m_maxJumpLevel;
@ -1387,10 +1395,10 @@ void SourceView::RenderAsmLine( const AsmLine& line, uint32_t ipcnt, uint32_t ip
buf[maxAddrLen] = '\0';
TextDisabledUnformatted( buf );
const auto stw = ImGui::CalcTextSize( " " ).x;
bool lineHovered = false;
if( m_asmShowSourceLocation && !m_sourceFiles.empty() )
{
const auto stw = ImGui::CalcTextSize( " " ).x;
ImGui::SameLine();
uint32_t srcline;
const auto srcidx = worker.GetLocationForAddress( line.addr, srcline );
@ -1458,6 +1466,17 @@ void SourceView::RenderAsmLine( const AsmLine& line, uint32_t ipcnt, uint32_t ip
ImGui::ItemSize( ImVec2( stw * 32, ty ), 0 );
}
}
if( m_asmBytes )
{
auto code = (const uint8_t*)worker.GetSymbolCode( m_symAddr, m_codeLen );
assert( code );
char tmp[64];
const auto len = PrintHexBytes( tmp, code + line.addr - m_symAddr, line.len );
ImGui::SameLine();
TextColoredUnformatted( ImVec4( 0.5, 0.5, 1, 1 ), tmp );
ImGui::SameLine( 0, 0 );
ImGui::ItemSize( ImVec2( stw * ( m_maxAsmBytes*3 - len ), ty ), 0 );
}
if( m_showJumps )
{
const auto JumpArrow = JumpArrowBase * ty / 15;;
@ -1470,7 +1489,7 @@ void SourceView::RenderAsmLine( const AsmLine& line, uint32_t ipcnt, uint32_t ip
const auto th4 = floor( ts.y / 4 );
const auto& mjl = m_maxJumpLevel;
const auto col = GetHsvColor( line.jumpAddr, 6 );
const auto xoff = ( iptotal == 0 ? 0 : ( 7 * ts.x + ts.y ) ) + (3+maxAddrLen) * ts.x + ( ( m_asmShowSourceLocation && !m_sourceFiles.empty() ) ? 36 * ts.x : 0 );
const auto xoff = ( iptotal == 0 ? 0 : ( 7 * ts.x + ts.y ) ) + (3+maxAddrLen) * ts.x + ( ( m_asmShowSourceLocation && !m_sourceFiles.empty() ) ? 36 * ts.x : 0 ) + ( m_asmBytes ? m_maxAsmBytes*3 * ts.x : 0 );
draw->AddLine( wpos + ImVec2( xoff + JumpSeparation * mjl + th2, th2 ), wpos + ImVec2( xoff + JumpSeparation * mjl + th2 + JumpArrow / 2, th2 ), col );
draw->AddLine( wpos + ImVec2( xoff + JumpSeparation * mjl + th2, th2 ), wpos + ImVec2( xoff + JumpSeparation * mjl + th2 + th4, th2 - th4 ), col );

2
server/TracySourceView.hpp
View File

@ -93,8 +93,10 @@ private:
int32_t m_disasmFail;
DecayValue<uint64_t> m_highlightAddr;
bool m_asmRelative;
bool m_asmBytes;
bool m_asmShowSourceLocation;
bool m_calcInlineStats;
uint8_t m_maxAsmBytes;
std::vector<Line> m_lines;
std::vector<AsmLine> m_asm;