At least on REL6 (Linux/glibc 2.12), the proper symbol for generating gprof
data is _mcount, not mcount. Prior to this change, compiling with -pg would
generate linking errors (because of unresolved references to mcount), after
this change -pg seems at least minimally functional.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@205144
91177308-0d34-0410-b5e6-
96231b3b80d8
LinuxTargetInfo(const llvm::Triple &Triple) : OSTargetInfo<Target>(Triple) {
this->UserLabelPrefix = "";
this->WIntType = TargetInfo::UnsignedInt;
+
+ switch (Triple.getArch()) {
+ default:
+ break;
+ case llvm::Triple::ppc:
+ case llvm::Triple::ppc64:
+ case llvm::Triple::ppc64le:
+ this->MCountName = "_mcount";
+ break;
+ }
}
const char *getStaticInitSectionSpecifier() const override {
// RUN: %clang_cc1 -pg -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -pg -triple powerpc-unknown-gnu-linux -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-PPC %s
+// RUN: %clang_cc1 -pg -triple powerpc64-unknown-gnu-linux -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-PPC %s
+// RUN: %clang_cc1 -pg -triple powerpc64le-unknown-gnu-linux -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-PPC %s
void foo(void) {
// CHECK: call void @mcount()
+// CHECK-PPC: call void @_mcount()
}