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| author | Fangrui Song <maskray@google.com> | 2020-01-04 16:58:11 -0800 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2020-01-10 09:57:39 -0800 |
| commit | f17ae668a96eeb69f0664f126cf672e1a05754d2 (patch) | |
| tree | 6d63004713914e91e9f07fecec32233cac4be725 /clang/lib/CodeGen | |
| parent | a44c434b68e515ce9f2627367c83ff6b22328261 (diff) | |
| download | bcm5719-llvm-f17ae668a96eeb69f0664f126cf672e1a05754d2.tar.gz bcm5719-llvm-f17ae668a96eeb69f0664f126cf672e1a05754d2.zip | |
[Driver][CodeGen] Add -fpatchable-function-entry=N[,0]
In the backend, this feature is implemented with the function attribute
"patchable-function-entry". Both the attribute and XRay use
TargetOpcode::PATCHABLE_FUNCTION_ENTER, so the two features are
incompatible.
Reviewed By: ostannard, MaskRay
Differential Revision: https://reviews.llvm.org/D72222
Diffstat (limited to 'clang/lib/CodeGen')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp index e59fe060738..a976005e2e4 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -824,6 +824,9 @@ void CodeGenFunction::StartFunction(GlobalDecl GD, QualType RetTy, // Attr->getStart is currently ignored. Fn->addFnAttr("patchable-function-entry", std::to_string(Attr->getCount())); + } else if (unsigned Count = CGM.getCodeGenOpts().PatchableFunctionEntryCount) { + Fn->addFnAttr("patchable-function-entry", + std::to_string(Count)); } } |
