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the apple "ld_classic" linker doesn't support .literal16 in 32-bit

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mode, and "ld64" (the default linker) falls back to it in -static
mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77334 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-07-28 17:50:28 +00:00
parent a02446a9d5
commit 4bb253c60f
5 changed files with 16 additions and 9 deletions
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17
lib/Target/TargetLoweringObjectFile.cpp
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@@ -486,7 +486,7 @@ getSectionForMergeableConstant(SectionKind Kind) const {
//===----------------------------------------------------------------------===//
TargetLoweringObjectFileMachO::
TargetLoweringObjectFileMachO() {
TargetLoweringObjectFileMachO(const TargetMachine &TM) {
TextSection = getOrCreateSection("\t.text", true, SectionKind::Text);
DataSection = getOrCreateSection("\t.data", true, SectionKind::DataRel);
@@ -496,8 +496,15 @@ TargetLoweringObjectFileMachO() {
SectionKind::MergeableConst4);
EightByteConstantSection = getOrCreateSection("\t.literal8\n", true,
SectionKind::MergeableConst8);
SixteenByteConstantSection =
getOrCreateSection("\t.literal16\n", true, SectionKind::MergeableConst16);
// ld_classic doesn't support .literal16 in 32-bit mode, and ld64 falls back
// to using it in -static mode.
if (TM.getRelocationModel() != Reloc::Static &&
TM.getTargetData()->getPointerSize() == 32)
SixteenByteConstantSection =
getOrCreateSection("\t.literal16\n", true, SectionKind::MergeableConst16);
else
SixteenByteConstantSection = 0;
ReadOnlySection = getOrCreateSection("\t.const", true, SectionKind::ReadOnly);
@@ -551,7 +558,7 @@ TargetLoweringObjectFileMachO::SelectSectionForGlobal(const GlobalValue *GV,
return FourByteConstantSection;
if (Kind.isMergeableConst8())
return EightByteConstantSection;
if (Kind.isMergeableConst16())
if (Kind.isMergeableConst16() && SixteenByteConstantSection)
return SixteenByteConstantSection;
return ReadOnlySection; // .const
}
@@ -582,7 +589,7 @@ getSectionForMergeableConstant(SectionKind Kind) const {
return FourByteConstantSection;
if (Kind.isMergeableConst8())
return EightByteConstantSection;
if (Kind.isMergeableConst16())
if (Kind.isMergeableConst16() && SixteenByteConstantSection)
return SixteenByteConstantSection;
return ReadOnlySection; // .const
}