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Add MCObjectFileInfo and sink the MCSections initialization code from

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TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135569 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-07-20 05:58:47 +00:00
parent 86c98145b2
commit e76a33b956
27 changed files with 900 additions and 840 deletions
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34
lib/MC/MCWin64EH.cpp
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@@ -10,10 +10,11 @@
#include "llvm/MC/MCWin64EH.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/ADT/Twine.h"
namespace llvm {
@@ -220,14 +221,36 @@ StringRef MCWin64EHUnwindEmitter::GetSectionSuffix(const MCSymbol *func) {
return "";
}
static const MCSection *getWin64EHTableSection(StringRef suffix,
MCContext &context) {
if (suffix == "")
return context.getObjectFileInfo()->getXDataSection();
return context.getCOFFSection((".xdata"+suffix).str(),
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ |
COFF::IMAGE_SCN_MEM_WRITE,
SectionKind::getDataRel());
}
static const MCSection *getWin64EHFuncTableSection(StringRef suffix,
MCContext &context) {
if (suffix == "")
return context.getObjectFileInfo()->getPDataSection();
return context.getCOFFSection((".pdata"+suffix).str(),
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ |
COFF::IMAGE_SCN_MEM_WRITE,
SectionKind::getDataRel());
}
void MCWin64EHUnwindEmitter::EmitUnwindInfo(MCStreamer &streamer,
MCWin64EHUnwindInfo *info) {
// Switch sections (the static function above is meant to be called from
// here and from Emit().
MCContext &context = streamer.getContext();
const TargetAsmInfo &TAI = context.getTargetAsmInfo();
const MCSection *xdataSect =
TAI.getWin64EHTableSection(GetSectionSuffix(info->Function));
getWin64EHTableSection(GetSectionSuffix(info->Function), context);
streamer.SwitchSection(xdataSect);
llvm::EmitUnwindInfo(streamer, info);
@@ -236,11 +259,10 @@ void MCWin64EHUnwindEmitter::EmitUnwindInfo(MCStreamer &streamer,
void MCWin64EHUnwindEmitter::Emit(MCStreamer &streamer) {
MCContext &context = streamer.getContext();
// Emit the unwind info structs first.
const TargetAsmInfo &TAI = context.getTargetAsmInfo();
for (unsigned i = 0; i < streamer.getNumW64UnwindInfos(); ++i) {
MCWin64EHUnwindInfo &info = streamer.getW64UnwindInfo(i);
const MCSection *xdataSect =
TAI.getWin64EHTableSection(GetSectionSuffix(info.Function));
getWin64EHTableSection(GetSectionSuffix(info.Function), context);
streamer.SwitchSection(xdataSect);
llvm::EmitUnwindInfo(streamer, &info);
}
@@ -248,7 +270,7 @@ void MCWin64EHUnwindEmitter::Emit(MCStreamer &streamer) {
for (unsigned i = 0; i < streamer.getNumW64UnwindInfos(); ++i) {
MCWin64EHUnwindInfo &info = streamer.getW64UnwindInfo(i);
const MCSection *pdataSect =
TAI.getWin64EHFuncTableSection(GetSectionSuffix(info.Function));
getWin64EHFuncTableSection(GetSectionSuffix(info.Function), context);
streamer.SwitchSection(pdataSect);
EmitRuntimeFunction(streamer, &info);
}