f1ba8943c8
Co-authored-by: Billy Laws <blaws05@gmail.com> Anti-dependency symbols are allowed to be duplicated, with the first definition taking precedence. If a regular weak alias is present, it is preferred over an anti-dependency definition. Chaining anti-dependencies is not allowed.
55 lines
1.8 KiB
Plaintext
55 lines
1.8 KiB
Plaintext
REQUIRES: x86
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RUN: split-file %s %t.dir && cd %t.dir
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RUN: llvm-mc -filetype=obj -triple=x86_64-windows antidep.s -o antidep.obj
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RUN: llvm-mc -filetype=obj -triple=x86_64-windows antidep2.s -o antidep2.obj
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RUN: llvm-mc -filetype=obj -triple=x86_64-windows weak.s -o weak.obj
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RUN: llvm-mc -filetype=obj -triple=x86_64-windows test.s -o test.obj
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Check that a regular weak alias overrides an anti-dependency symbol.
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RUN: lld-link -dll -noentry -out:out1.dll antidep.obj weak.obj test.obj
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RUN: llvm-readobj --hex-dump=.test out1.dll | FileCheck --check-prefix=CHECK2 %s
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RUN: lld-link -dll -noentry -out:out2.dll weak.obj antidep.obj test.obj
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RUN: llvm-readobj --hex-dump=.test out2.dll | FileCheck --check-prefix=CHECK2 %s
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RUN: lld-link -dll -noentry -out:out3.dll antidep.obj weak.obj test.obj -lld-allow-duplicate-weak
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RUN: llvm-readobj --hex-dump=.test out3.dll | FileCheck --check-prefix=CHECK2 %s
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RUN: lld-link -dll -noentry -out:out4.dll weak.obj antidep.obj test.obj -lld-allow-duplicate-weak
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RUN: llvm-readobj --hex-dump=.test out4.dll | FileCheck --check-prefix=CHECK2 %s
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When an anti-dependency symbol is duplicated, the first definition takes precedence over subsequent ones.
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RUN: lld-link -dll -noentry -out:out5.dll antidep.obj antidep2.obj test.obj
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RUN: llvm-readobj --hex-dump=.test out5.dll | FileCheck --check-prefix=CHECK1 %s
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RUN: lld-link -dll -noentry -out:out6.dll antidep2.obj antidep.obj test.obj
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RUN: llvm-readobj --hex-dump=.test out6.dll | FileCheck --check-prefix=CHECK2 %s
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CHECK1: 01000000
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CHECK2: 02000000
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#--- antidep.s
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.weak_anti_dep sym
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.set sym,target1
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#--- antidep2.s
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.weak_anti_dep sym
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.set sym,target2
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#--- weak.s
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.weak sym
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.set sym,target2
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#--- test.s
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.section .target,"dr"
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.globl target1
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.set target1,1
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.globl target2
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.set target2,2
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.section .test,"dr"
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.long sym
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