Support for ELF Visibility
Emission for globals, using the correct data sections
Function alignment can be computed for each target using TargetELFWriterInfo
Some small fixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73201 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ELFWriterInfo.cpp b/lib/Target/X86/X86ELFWriterInfo.cpp
index 2604741..09c3185 100644
--- a/lib/Target/X86/X86ELFWriterInfo.cpp
+++ b/lib/Target/X86/X86ELFWriterInfo.cpp
@@ -12,8 +12,26 @@
//===----------------------------------------------------------------------===//
#include "X86ELFWriterInfo.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/DerivedTypes.h"
using namespace llvm;
-X86ELFWriterInfo::X86ELFWriterInfo(bool is64Bit) :
- TargetELFWriterInfo(is64Bit ? EM_X86_64 : EM_386) {}
+X86ELFWriterInfo::X86ELFWriterInfo(TargetMachine &TM)
+ : TargetELFWriterInfo(TM) {
+ bool is64Bit = TM.getTargetData()->getPointerSizeInBits() == 64;
+ EMachine = is64Bit ? EM_X86_64 : EM_386;
+ }
+
X86ELFWriterInfo::~X86ELFWriterInfo() {}
+
+unsigned X86ELFWriterInfo::getFunctionAlignment(const Function *F) const {
+ unsigned FnAlign = 4;
+
+ if (F->hasFnAttr(Attribute::OptimizeForSize))
+ FnAlign = 1;
+
+ if (F->getAlignment())
+ FnAlign = Log2_32(F->getAlignment());
+
+ return (1 << FnAlign);
+}
diff --git a/lib/Target/X86/X86ELFWriterInfo.h b/lib/Target/X86/X86ELFWriterInfo.h
index acfa501..e9c5bc4 100644
--- a/lib/Target/X86/X86ELFWriterInfo.h
+++ b/lib/Target/X86/X86ELFWriterInfo.h
@@ -20,8 +20,10 @@
class X86ELFWriterInfo : public TargetELFWriterInfo {
public:
- X86ELFWriterInfo(bool is64Bit);
+ X86ELFWriterInfo(TargetMachine &TM);
virtual ~X86ELFWriterInfo();
+
+ virtual unsigned getFunctionAlignment(const Function *F) const;
};
} // end llvm namespace
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 88ab247..dfb055f 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -133,8 +133,7 @@
DataLayout(Subtarget.getDataLayout()),
FrameInfo(TargetFrameInfo::StackGrowsDown,
Subtarget.getStackAlignment(), Subtarget.is64Bit() ? -8 : -4),
- InstrInfo(*this), JITInfo(*this), TLInfo(*this),
- ELFWriterInfo(Subtarget.is64Bit()) {
+ InstrInfo(*this), JITInfo(*this), TLInfo(*this), ELFWriterInfo(*this) {
DefRelocModel = getRelocationModel();
// FIXME: Correctly select PIC model for Win64 stuff
if (getRelocationModel() == Reloc::Default) {