if (Sleds.empty())
return;
if (Subtarget->isTargetELF()) {
- auto *Section = OutContext.getELFSection(
- "xray_instr_map", ELF::SHT_PROGBITS,
- ELF::SHF_ALLOC | ELF::SHF_GROUP | ELF::SHF_MERGE, 0,
- CurrentFnSym->getName());
auto PrevSection = OutStreamer->getCurrentSectionOnly();
+ auto Fn = MF->getFunction();
+ MCSection *Section = nullptr;
+ if (Fn->hasComdat()) {
+ Section = OutContext.getELFSection("xray_instr_map", ELF::SHT_PROGBITS,
+ ELF::SHF_ALLOC | ELF::SHF_GROUP, 0,
+ Fn->getComdat()->getName());
+ OutStreamer->SwitchSection(Section);
+ } else {
+ Section = OutContext.getELFSection("xray_instr_map", ELF::SHT_PROGBITS,
+ ELF::SHF_ALLOC);
+ }
OutStreamer->SwitchSection(Section);
for (const auto &Sled : Sleds) {
OutStreamer->EmitSymbolValue(Sled.Sled, 8);
--- /dev/null
+; RUN: llc -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu -function-sections < %s | FileCheck %s
+
+define i32 @foo() nounwind noinline uwtable "function-instrument"="xray-always" {
+; CHECK: .section .text.foo,"ax",@progbits
+ ret i32 0
+; CHECK: .section xray_instr_map,"a",@progbits
+}
+
+$bar = comdat any
+define i32 @comdat() nounwind noinline uwtable "function-instrument"="xray-always" comdat($bar) {
+; CHECK: .section .text.comdat,"axG",@progbits,bar,comdat
+ ret i32 1
+; CHECK: .section xray_instr_map,"aG",@progbits,bar,comdat
+}