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commit ec9de4677ac61f2164d7c80cae5da0008189efa3
Author: Philip Reames <listmail@philipreames.com>
Date: Fri Aug 1 18:47:09 2014 +0000
Add support for StackMap section for ELF/Linux systems
This patch adds code to emits the StackMap section on ELF systems. This section is required to support llvm.experimental.stackmap and llvm.experimental.patchpoint intrinsics.
Reviewers: ributzka, echristo
Differential Revision: http://reviews.llvm.org/D4574
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214538 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCObjectFileInfo.cpp b/lib/MC/MCObjectFileInfo.cpp
index df5787c..da707d8 100644
--- a/lib/MC/MCObjectFileInfo.cpp
+++ b/lib/MC/MCObjectFileInfo.cpp
@@ -583,6 +583,12 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
DwarfAddrSection =
Ctx->getELFSection(".debug_addr", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
+
+ StackMapSection =
+ Ctx->getELFSection(".llvm_stackmaps", ELF::SHT_PROGBITS,
+ ELF::SHF_ALLOC,
+ SectionKind::getMetadata());
+
}
diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index 3c22e88..fc0d408 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -736,6 +736,8 @@ void X86AsmPrinter::EmitEndOfAsmFile(Module &M) {
}
Stubs.clear();
}
+
+ SM.serializeToStackMapSection();
}
}
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