e2e132c5d9
Before this, LLD sets OrdinalBase to 0, which deviates from usual practices. This technically would allow LLD to export a symbol using ordinal 0, however LLD never use export ordinal 0, which results in binaries with export tables always having an empty export at ordinal 0. This change makes LLD set OrdinalBase to 1 and not create the empty export with ordinal 0, which makes its behaviour more in line with both the MSVC linker and the GNU linker. Reviewed By: mstorsjo Differential Revision: https://reviews.llvm.org/D134140
100 lines
2.6 KiB
ArmAsm
100 lines
2.6 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc %s -triple x86_64-windows-msvc -filetype=obj -o %t.obj
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# RUN: lld-link %t.obj -dll -noentry -out:%t.dll -merge:.xdata=.xdata 2>&1 \
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# RUN: | FileCheck %s --check-prefix=WARN
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# RUN: llvm-readobj --sections %t.dll | FileCheck %s --check-prefix=XDATA
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# RUN: lld-link %t.obj -dll -noentry -out:%t.dll
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# RUN: llvm-readobj --sections %t.dll | FileCheck %s --check-prefix=RDATA
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# There shouldn't be much xdata, because all three .pdata entries (12 bytes
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# each) should use the same .xdata unwind info.
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# XDATA: Name: .rdata
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# XDATA-NEXT: VirtualSize: 0x6F
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# XDATA: Name: .pdata
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# XDATA-NEXT: VirtualSize: 0x24
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# XDATA: Name: .xdata
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# XDATA-NEXT: VirtualSize: 0x8
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#
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# WARN: warning: .xdata=.rdata: already merged into .xdata
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#
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# RDATA: Name: .rdata
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# RDATA-NEXT: VirtualSize: 0x78
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# RDATA: Name: .pdata
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# RDATA-NEXT: VirtualSize: 0x24
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.text
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callee:
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ret
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.def xdata1;
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.scl 2;
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.type 32;
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.endef
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.section .text,"xr",one_only,xdata1
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.globl xdata1 # -- Begin function xdata1
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.p2align 4, 0x90
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xdata1: # @xdata1
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.seh_proc xdata1
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# BB#0: # %entry
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subq $40, %rsp
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.seh_stackalloc 40
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.seh_endprologue
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callq callee
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nop
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addq $40, %rsp
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jmp callee # TAILCALL
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.seh_handlerdata
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.section .text,"xr",one_only,xdata1
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.seh_endproc
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# -- End function
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.def xdata2;
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.scl 2;
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.type 32;
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.endef
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.section .text,"xr",one_only,xdata2
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.globl xdata2 # -- Begin function xdata2
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.p2align 4, 0x90
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xdata2: # @xdata2
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.seh_proc xdata2
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# BB#0: # %entry
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subq $40, %rsp
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.seh_stackalloc 40
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.seh_endprologue
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callq callee
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callq callee
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nop
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addq $40, %rsp
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jmp callee # TAILCALL
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.seh_handlerdata
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.section .text,"xr",one_only,xdata2
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.seh_endproc
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# -- End function
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.def xdata3;
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.scl 2;
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.type 32;
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.endef
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.section .text,"xr",one_only,xdata3
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.globl xdata3 # -- Begin function xdata3
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.p2align 4, 0x90
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xdata3: # @xdata3
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.seh_proc xdata3
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# BB#0: # %entry
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subq $40, %rsp
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.seh_stackalloc 40
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.seh_endprologue
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callq callee
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callq callee
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callq callee
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nop
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addq $40, %rsp
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jmp callee # TAILCALL
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.seh_handlerdata
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.section .text,"xr",one_only,xdata3
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.seh_endproc
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# -- End function
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.section .drectve,"yn"
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.ascii " -export:xdata1"
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.ascii " -export:xdata2"
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.ascii " -export:xdata3"
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