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75b594b1e8
Summary: This adds a unique ID to the COFF section uniquing map, similar to the one we have for ELF. The unique id is not currently exposed via the assembler because we don't have a use case for it yet. Users generally create .pdata with the .seh_* family of directives, and the assembler internally needs to produce .pdata and .xdata sections corresponding to the code section. The association between .text sections and the assembler-created .xdata and .pdata sections is maintained as an ID field of MCSectionCOFF. The CFI-related sections are created with the given unique ID, so if more code is added to the same text section, we can find and reuse the CFI sections that were already created. Reviewers: majnemer, rafael Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D19376 llvm-svn: 268331
155 lines
4.1 KiB
ArmAsm
155 lines
4.1 KiB
ArmAsm
# RUN: llvm-mc -filetype=obj -triple x86_64-pc-win32 %s | llvm-readobj -symbols | FileCheck %s
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# This assembly should make an object with two .text sections, two .xdata
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# sections, and two .pdata sections.
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.def f;
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.scl 2;
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.type 32;
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.endef
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.section .text,"xr",discard,f
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.globl f
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.p2align 4, 0x90
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f: # @f
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.Ltmp0:
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.seh_proc f
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# BB#0:
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subq $40, %rsp
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.Ltmp1:
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.seh_stackalloc 40
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.Ltmp2:
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.seh_endprologue
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callq g
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nop
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addq $40, %rsp
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retq
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.seh_handlerdata
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.section .text,"xr",discard,f
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.Ltmp3:
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.seh_endproc
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.def g;
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.scl 3;
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.type 32;
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.endef
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.section .text,"xr",associative,f
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.p2align 4, 0x90
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g: # @g
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.Ltmp4:
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.seh_proc g
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# BB#0:
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.Ltmp5:
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.seh_endprologue
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retq
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.seh_handlerdata
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.section .text,"xr",associative,f
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.Ltmp6:
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.seh_endproc
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# CHECK: Symbols [
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# CHECK: Symbol {
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# CHECK: Name: .text
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# CHECK: Section: .text (4)
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# CHECK: AuxSymbolCount: 1
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# CHECK: AuxSectionDef {
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# CHECK: Length: 15
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# CHECK: RelocationCount: 1
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# CHECK: LineNumberCount: 0
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# CHECK: Checksum: 0xE17CBB7
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# CHECK: Number: 4
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# CHECK: Selection: Any (0x2)
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# CHECK: }
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# CHECK: }
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# CHECK: Symbol {
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# CHECK: Name: .xdata
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# CHECK: Value: 0
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# CHECK: Section: .xdata (5)
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# CHECK: BaseType: Null (0x0)
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# CHECK: ComplexType: Null (0x0)
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# CHECK: StorageClass: Static (0x3)
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# CHECK: AuxSymbolCount: 1
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# CHECK: AuxSectionDef {
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# CHECK: Length: 8
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# CHECK: RelocationCount: 0
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# CHECK: LineNumberCount: 0
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# CHECK: Checksum: 0xFC539D1
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# CHECK: Number: 4
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# CHECK: Selection: Associative (0x5)
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# CHECK: AssocSection: .text (4)
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# CHECK: }
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# CHECK: }
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# CHECK: Symbol {
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# CHECK: Name: .text
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# CHECK: Value: 0
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# CHECK: Section: .text (6)
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# CHECK: BaseType: Null (0x0)
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# CHECK: ComplexType: Null (0x0)
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# CHECK: StorageClass: Static (0x3)
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# CHECK: AuxSymbolCount: 1
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# CHECK: AuxSectionDef {
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# CHECK: Length: 1
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# CHECK: RelocationCount: 0
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# CHECK: LineNumberCount: 0
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# CHECK: Checksum: 0x26D930A
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# CHECK: Number: 4
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# CHECK: Selection: Associative (0x5)
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# CHECK: AssocSection: .text (4)
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# CHECK: }
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# CHECK: }
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# CHECK: Symbol {
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# CHECK: Name: .xdata
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# CHECK: Value: 0
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# CHECK: Section: .xdata (7)
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# CHECK: BaseType: Null (0x0)
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# CHECK: ComplexType: Null (0x0)
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# CHECK: StorageClass: Static (0x3)
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# CHECK: AuxSymbolCount: 1
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# CHECK: AuxSectionDef {
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# CHECK: Length: 8
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# CHECK: RelocationCount: 0
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# CHECK: LineNumberCount: 0
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# CHECK: Checksum: 0xCCAA009E
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# CHECK: Number: 4
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# CHECK: Selection: Associative (0x5)
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# CHECK: AssocSection: .text (4)
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# CHECK: }
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# CHECK: }
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# CHECK: Symbol {
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# CHECK: Name: .pdata
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# CHECK: Value: 0
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# CHECK: Section: .pdata (8)
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# CHECK: BaseType: Null (0x0)
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# CHECK: ComplexType: Null (0x0)
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# CHECK: StorageClass: Static (0x3)
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# CHECK: AuxSymbolCount: 1
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# CHECK: AuxSectionDef {
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# CHECK: Length: 12
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# CHECK: RelocationCount: 3
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# CHECK: LineNumberCount: 0
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# CHECK: Checksum: 0xD92012AC
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# CHECK: Number: 4
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# CHECK: Selection: Associative (0x5)
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# CHECK: AssocSection: .text (4)
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# CHECK: }
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# CHECK: }
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# CHECK: Symbol {
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# CHECK: Name: .pdata
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# CHECK: Value: 0
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# CHECK: Section: .pdata (9)
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# CHECK: BaseType: Null (0x0)
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# CHECK: ComplexType: Null (0x0)
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# CHECK: StorageClass: Static (0x3)
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# CHECK: AuxSymbolCount: 1
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# CHECK: AuxSectionDef {
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# CHECK: Length: 12
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# CHECK: RelocationCount: 3
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# CHECK: LineNumberCount: 0
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# CHECK: Checksum: 0xCCAA009E
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# CHECK: Number: 4
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# CHECK: Selection: Associative (0x5)
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# CHECK: AssocSection: .text (4)
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# CHECK: }
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# CHECK: }
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# CHECK: ]
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