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MC-COFF: Implement InitSections. Fixes PR8335.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116151 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer 2010-10-09 15:44:27 +00:00
parent 7d4900416a
commit 192d136750
3 changed files with 68 additions and 3 deletions
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39
lib/MC/WinCOFFStreamer.cpp
View File

@ -79,6 +79,41 @@ public:
virtual void EmitDwarfFileDirective(unsigned FileNo,StringRef Filename);
virtual void EmitInstruction(const MCInst &Instruction);
virtual void Finish();
private:
void SetSection(StringRef Section,
unsigned Characteristics,
SectionKind Kind) {
SwitchSection(getContext().getCOFFSection(Section, Characteristics, Kind));
}
void SetSectionText() {
SetSection(".text",
COFF::IMAGE_SCN_CNT_CODE
| COFF::IMAGE_SCN_MEM_EXECUTE
| COFF::IMAGE_SCN_MEM_READ,
SectionKind::getText());
EmitCodeAlignment(4, 0);
}
void SetSectionData() {
SetSection(".data",
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA
| COFF::IMAGE_SCN_MEM_READ
| COFF::IMAGE_SCN_MEM_WRITE,
SectionKind::getDataRel());
EmitCodeAlignment(4, 0);
}
void SetSectionBSS() {
SetSection(".bss",
COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA
| COFF::IMAGE_SCN_MEM_READ
| COFF::IMAGE_SCN_MEM_WRITE,
SectionKind::getBSS());
EmitCodeAlignment(4, 0);
}
};
} // end anonymous namespace.
@ -128,6 +163,10 @@ void WinCOFFStreamer::AddCommonSymbol(MCSymbol *Symbol, uint64_t Size,
// MCStreamer interface
void WinCOFFStreamer::InitSections() {
SetSectionText();
SetSectionData();
SetSectionBSS();
SetSectionText();
}
void WinCOFFStreamer::EmitLabel(MCSymbol *Symbol) {

6
test/MC/COFF/basic-coff.s
View File

@ -74,9 +74,9 @@ L_.str: # @.str
// CHECK: PointerToLineNumbers = 0x0
// CHECK: NumberOfRelocations = 0
// CHECK: NumberOfLineNumbers = 0
// CHECK: Charateristics = 0xC0100040
// CHECK: Charateristics = 0xC0300040
// CHECK: IMAGE_SCN_CNT_INITIALIZED_DATA
// CHECK: IMAGE_SCN_ALIGN_1BYTES
// CHECK: IMAGE_SCN_ALIGN_4BYTES
// CHECK: IMAGE_SCN_MEM_READ
// CHECK: IMAGE_SCN_MEM_WRITE
// CHECK: SectionData =
@ -94,7 +94,7 @@ L_.str: # @.str
// CHECK: StorageClass = IMAGE_SYM_CLASS_STATIC (3)
// CHECK: NumberOfAuxSymbols = 1
// CHECK: AuxillaryData =
// CHECK: 15 00 00 00 02 00 00 00 - 00 00 00 00 01 00 00 00 |................|
// CHECK: 18 00 00 00 02 00 00 00 - 00 00 00 00 01 00 00 00 |................|
// CHECK: 00 00 |..|
// CHECK: }
// CHECK: 2 = {

26
test/MC/COFF/module-asm.ll Normal file
View File

@ -0,0 +1,26 @@
; The purpose of this test is to verify that various module level assembly
; constructs work.
; RUN: llc -filetype=obj -mtriple i686-pc-win32 %s -o - | coff-dump.py | FileCheck %s
; RUN: llc -filetype=obj -mtriple x86_64-pc-win32 %s -o - | coff-dump.py | FileCheck %s
module asm ".text"
module asm "_foo:"
module asm " ret"
; CHECK: Name = .text
; CHECK-NEXT: VirtualSize = 0
; CHECK-NEXT: VirtualAddress = 0
; CHECK-NEXT: SizeOfRawData = {{[0-9]+}}
; CHECK-NEXT: PointerToRawData = 0x{{[0-9A-F]+}}
; CHECK-NEXT: PointerToRelocations = 0x{{[0-9A-F]+}}
; CHECK-NEXT: PointerToLineNumbers = 0x0
; CHECK-NEXT: NumberOfRelocations = 0
; CHECK-NEXT: NumberOfLineNumbers = 0
; CHECK-NEXT: Charateristics = 0x60300020
; CHECK-NEXT: IMAGE_SCN_CNT_CODE
; CHECK-NEXT: IMAGE_SCN_ALIGN_4BYTES
; CHECK-NEXT: IMAGE_SCN_MEM_EXECUTE
; CHECK-NEXT: IMAGE_SCN_MEM_READ
; CHECK-NEXT: SectionData =
; CHECK-NEXT: C3