diff options
Diffstat (limited to 'llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp b/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp index 55fd86f..493c70e 100644 --- a/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp +++ b/llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp @@ -288,6 +288,11 @@ void InstrProfiling::emitRegistration() { void InstrProfiling::emitRuntimeHook() { + // We expect the linker to be invoked with -u<hook_var> flag for linux, + // for which case there is no need to emit the user function. + if (Triple(M->getTargetTriple()).isOSLinux()) + return; + // If the module's provided its own runtime, we don't need to do anything. if (M->getGlobalVariable(getInstrProfRuntimeHookVarName())) return; |