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use XCore-specific section with xcore specific cp/dp flags to restore

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support for globals going into the appropriate sections with the flags.

This hopefully finishes unbreaking the previous behavior that I broke before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79079 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-08-15 06:09:35 +00:00
parent 203b3e9e2a
commit 760e24cd05
3 changed files with 26 additions and 16 deletions
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40
lib/Target/XCore/XCoreTargetObjectFile.cpp
View File

@ -9,7 +9,7 @@
#include "XCoreTargetObjectFile.h"
#include "XCoreSubtarget.h"
#include "llvm/MC/MCSectionELF.h"
#include "MCSectionXCore.h"
#include "llvm/Target/TargetMachine.h"
using namespace llvm;
@ -17,12 +17,22 @@ using namespace llvm;
void XCoreTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM){
TargetLoweringObjectFileELF::Initialize(Ctx, TM);
DataSection = getELFSection(".dp.data", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
SectionKind::getDataRel());
BSSSection = getELFSection(".dp.bss", MCSectionELF::SHT_NOBITS,
MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
SectionKind::getBSS());
DataSection =
MCSectionXCore::Create(".dp.data", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE |
MCSectionXCore::SHF_DP_SECTION,
SectionKind::getDataRel(), false, getContext());
BSSSection =
MCSectionXCore::Create(".dp.bss", MCSectionELF::SHT_NOBITS,
MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE |
MCSectionXCore::SHF_DP_SECTION,
SectionKind::getBSS(), false, getContext());
// For now, disable lowering of mergable sections, just drop everything into
// ReadOnly.
MergeableConst4Section = 0;
MergeableConst8Section = 0;
MergeableConst16Section = 0;
// TLS globals are lowered in the backend to arrays indexed by the current
// thread id. After lowering they require no special handling by the linker
@ -31,13 +41,15 @@ void XCoreTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM){
TLSBSSSection = BSSSection;
if (TM.getSubtarget<XCoreSubtarget>().isXS1A())
// FIXME: Why is this writable ("datarel")???
ReadOnlySection =
getELFSection(".dp.rodata", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
SectionKind::getDataRel());
ReadOnlySection = // FIXME: Why is this a writable section for XS1A?
MCSectionXCore::Create(".dp.rodata", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE |
MCSectionXCore::SHF_DP_SECTION,
SectionKind::getDataRel(), false, getContext());
else
ReadOnlySection =
getELFSection(".cp.rodata", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_ALLOC, SectionKind::getReadOnly());
MCSectionXCore::Create(".cp.rodata", MCSectionELF::SHT_PROGBITS,
MCSectionELF::SHF_ALLOC |
MCSectionXCore::SHF_CP_SECTION,
SectionKind::getReadOnly(), false, getContext());
}

1
test/CodeGen/XCore/globals.ll
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@ -1,5 +1,4 @@
; RUN: llvm-as < %s | llc -march=xcore -mcpu=xs1b-generic | FileCheck %s
; XFAIL: *
define i32 *@addr_G1() {
entry:

1
test/CodeGen/XCore/tls.ll
View File

@ -1,5 +1,4 @@
; RUN: llvm-as < %s | llc -march=xcore -mcpu=xs1b-generic | FileCheck %s
; XFAIL: *
define i32 *@addr_G() {
entry: