[llvm] r282451 - [CodeGen] Add support for emitting .init_array instead of .ctors on FreeBSD.

[Davide Italiano via llvm-commits]

Author: davide
Date: Mon Sep 26 17:53:15 2016
New Revision: 282451

URL: http://llvm.org/viewvc/llvm-project?rev=282451&view=rev
Log:
[CodeGen] Add support for emitting .init_array instead of .ctors on FreeBSD.

PR: 30494

Modified:
    llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
    llvm/trunk/lib/Target/X86/X86TargetObjectFile.cpp
    llvm/trunk/lib/Target/X86/X86TargetObjectFile.h
    llvm/trunk/test/CodeGen/X86/constructor.ll

Modified: llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetMachine.cpp?rev=282451&r1=282450&r2=282451&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86TargetMachine.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86TargetMachine.cpp Mon Sep 26 17:53:15 2016
@@ -50,6 +50,8 @@ static std::unique_ptr<TargetLoweringObj
     return make_unique<TargetLoweringObjectFileMachO>();
   }
 
+  if (TT.isOSFreeBSD())
+    return make_unique<X86FreeBSDTargetObjectFile>();
   if (TT.isOSLinux() || TT.isOSNaCl())
     return make_unique<X86LinuxNaClTargetObjectFile>();
   if (TT.isOSBinFormatELF())

Modified: llvm/trunk/lib/Target/X86/X86TargetObjectFile.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetObjectFile.cpp?rev=282451&r1=282450&r2=282451&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86TargetObjectFile.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86TargetObjectFile.cpp Mon Sep 26 17:53:15 2016
@@ -66,6 +66,13 @@ const MCExpr *X86ELFTargetObjectFile::ge
 }
 
 void
+X86FreeBSDTargetObjectFile::Initialize(MCContext &Ctx,
+                                       const TargetMachine &TM) {
+  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
+  InitializeELF(TM.Options.UseInitArray);
+}
+
+void
 X86LinuxNaClTargetObjectFile::Initialize(MCContext &Ctx,
                                          const TargetMachine &TM) {
   TargetLoweringObjectFileELF::Initialize(Ctx, TM);

Modified: llvm/trunk/lib/Target/X86/X86TargetObjectFile.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetObjectFile.h?rev=282451&r1=282450&r2=282451&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86TargetObjectFile.h (original)
+++ llvm/trunk/lib/Target/X86/X86TargetObjectFile.h Mon Sep 26 17:53:15 2016
@@ -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 {

Modified: llvm/trunk/test/CodeGen/X86/constructor.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/constructor.ll?rev=282451&r1=282450&r2=282451&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/constructor.ll (original)
+++ llvm/trunk/test/CodeGen/X86/constructor.ll Mon Sep 26 17:53:15 2016
@@ -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 }]