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[llvm] Add option to emit call graph section #87572

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[llvm] Add option to emit call graph section #87572

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770e2ad
[𝘀𝗽𝗿] initial version
necipfazil Apr 3, 2024
daf306a
Rebased on top of main
necipfazil Apr 24, 2024
dcd3243
Rebased on top of main
necipfazil Apr 24, 2024
7bcfab2
Rebased on upstream main.
necipfazil May 1, 2024
8d7d2f2
Rebase patchset
necipfazil Nov 14, 2024
ab76a21
Update inline comment as suggested.
necipfazil Nov 14, 2024
23ac5ef
Rebase on top of upstream main.
necipfazil Nov 20, 2024
0320167
Break clang and llvm parts into separate commits.
Prabhuk Nov 20, 2024
a144d79
Address review comments. Break llvm and clang patches.
Prabhuk Dec 10, 2024
787045d
Rebase on top of main.
Prabhuk Feb 2, 2025
c67f189
Rename OB_type to OB_callee_type.
Prabhuk Feb 5, 2025
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2 changes: 2 additions & 0 deletions llvm/include/llvm/CodeGen/CommandFlags.h
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Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,8 @@ bool getEnableStackSizeSection();

bool getEnableAddrsig();

bool getEnableCallGraphSection();

bool getEmitCallSiteInfo();

bool getEnableMachineFunctionSplitter();
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12 changes: 8 additions & 4 deletions llvm/include/llvm/Target/TargetOptions.h
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Expand Up @@ -147,10 +147,11 @@ namespace llvm {
EmitStackSizeSection(false), EnableMachineOutliner(false),
EnableMachineFunctionSplitter(false),
EnableStaticDataPartitioning(false), SupportsDefaultOutlining(false),
EmitAddrsig(false), BBAddrMap(false), EmitCallSiteInfo(false),
SupportsDebugEntryValues(false), EnableDebugEntryValues(false),
ValueTrackingVariableLocations(false), ForceDwarfFrameSection(false),
XRayFunctionIndex(true), DebugStrictDwarf(false), Hotpatch(false),
EmitAddrsig(false), BBAddrMap(false), EmitCallGraphSection(false),
EmitCallSiteInfo(false), SupportsDebugEntryValues(false),
EnableDebugEntryValues(false), ValueTrackingVariableLocations(false),
ForceDwarfFrameSection(false), XRayFunctionIndex(true),
DebugStrictDwarf(false), Hotpatch(false),
PPCGenScalarMASSEntries(false), JMCInstrument(false),
EnableCFIFixup(false), MisExpect(false), XCOFFReadOnlyPointers(false),
VerifyArgABICompliance(true),
Expand Down Expand Up @@ -333,6 +334,9 @@ namespace llvm {
/// to selectively generate basic block sections.
std::shared_ptr<MemoryBuffer> BBSectionsFuncListBuf;

/// Emit section containing call graph metadata.
unsigned EmitCallGraphSection : 1;

/// The flag enables call site info production. It is used only for debug
/// info, and it is restricted only to optimized code. This can be used for
/// something else, so that should be controlled in the frontend.
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7 changes: 7 additions & 0 deletions llvm/lib/CodeGen/CommandFlags.cpp
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Expand Up @@ -101,6 +101,7 @@ CGOPT(EABI, EABIVersion)
CGOPT(DebuggerKind, DebuggerTuningOpt)
CGOPT(bool, EnableStackSizeSection)
CGOPT(bool, EnableAddrsig)
CGOPT(bool, EnableCallGraphSection)
CGOPT(bool, EmitCallSiteInfo)
CGOPT(bool, EnableMachineFunctionSplitter)
CGOPT(bool, EnableStaticDataPartitioning)
Expand Down Expand Up @@ -461,6 +462,11 @@ codegen::RegisterCodeGenFlags::RegisterCodeGenFlags() {
cl::init(false));
CGBINDOPT(EnableAddrsig);

static cl::opt<bool> EnableCallGraphSection(
"call-graph-section", cl::desc("Emit a call graph section"),
cl::init(false));
CGBINDOPT(EnableCallGraphSection);

static cl::opt<bool> EmitCallSiteInfo(
"emit-call-site-info",
cl::desc(
Expand Down Expand Up @@ -595,6 +601,7 @@ codegen::InitTargetOptionsFromCodeGenFlags(const Triple &TheTriple) {
Options.EnableMachineFunctionSplitter = getEnableMachineFunctionSplitter();
Options.EnableStaticDataPartitioning = getEnableStaticDataPartitioning();
Options.EmitAddrsig = getEnableAddrsig();
Options.EmitCallGraphSection = getEnableCallGraphSection();
Options.EmitCallSiteInfo = getEmitCallSiteInfo();
Options.EnableDebugEntryValues = getEnableDebugEntryValues();
Options.ForceDwarfFrameSection = getForceDwarfFrameSection();
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