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[CodeGen] Add support for emitting .init_array instead of .ctors on FreeBSD.

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PR: 30494
llvm-svn: 282451
This commit is contained in:
Davide Italiano 2016-09-26 22:53:15 +00:00
parent 5722b8c65d
commit 836f9d2e4e
4 changed files with 17 additions and 0 deletions
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2
lib/Target/X86/X86TargetMachine.cpp
View File

@ -50,6 +50,8 @@ static std::unique_ptr<TargetLoweringObjectFile> createTLOF(const Triple &TT) {
return make_unique<TargetLoweringObjectFileMachO>();
}
if (TT.isOSFreeBSD())
return make_unique<X86FreeBSDTargetObjectFile>();
if (TT.isOSLinux() || TT.isOSNaCl())
return make_unique<X86LinuxNaClTargetObjectFile>();
if (TT.isOSBinFormatELF())

7
lib/Target/X86/X86TargetObjectFile.cpp
View File

@ -65,6 +65,13 @@ const MCExpr *X86ELFTargetObjectFile::getDebugThreadLocalSymbol(
return MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_DTPOFF, getContext());
}
void
X86FreeBSDTargetObjectFile::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
InitializeELF(TM.Options.UseInitArray);
}
void
X86LinuxNaClTargetObjectFile::Initialize(MCContext &Ctx,
const TargetMachine &TM) {

6
lib/Target/X86/X86TargetObjectFile.h
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@ -49,6 +49,12 @@ namespace llvm {
const MCExpr *getDebugThreadLocalSymbol(const MCSymbol *Sym) const override;
};
/// X86FreeBSDTargetObjectFile - This implementation is used for FreeBSD
/// on x86 and x86-64.
class X86FreeBSDTargetObjectFile : public X86ELFTargetObjectFile {
void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
};
/// X86LinuxNaClTargetObjectFile - This implementation is used for linux and
/// Native Client on x86 and x86-64.
class X86LinuxNaClTargetObjectFile : public X86ELFTargetObjectFile {

2
test/CodeGen/X86/constructor.ll
View File

@ -1,5 +1,7 @@
; RUN: llc -mtriple x86_64-pc-linux -use-ctors < %s | FileCheck --check-prefix=CTOR %s
; RUN: llc -mtriple x86_64-unknown-freebsd -use-ctors < %s | FileCheck --check-prefix=CTOR %s
; RUN: llc -mtriple x86_64-pc-linux < %s | FileCheck --check-prefix=INIT-ARRAY %s
; RUN: llc -mtriple x86_64-unknown-freebsd < %s | FileCheck --check-prefix=INIT-ARRAY %s
; RUN: llc -mtriple x86_64-unknown-nacl < %s | FileCheck --check-prefix=NACL %s
@llvm.global_ctors = appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @f, i8* null}, { i32, void ()*, i8* } { i32 15, void ()* @g, i8* @v }]