derek.holloway
7502bf64a4
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49 lines
1.9 KiB
ArmAsm
49 lines
1.9 KiB
ArmAsm
## If the original of a wrapped symbol becomes unreferenced after wrapping, it
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## should be dropped from the dynamic symbol table even if defined in a shared
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## library.
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# REQUIRES: x86
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# RUN: rm -rf %t && split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-elf %t/original.s -o %t/original.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-elf %t/wrapped.s -o %t/wrapped.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-elf %t/ref.s -o %t/ref.o
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# RUN: ld.lld -shared -o %t/liboriginal.so -soname liboriginal.so %t/original.o
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# RUN: ld.lld -shared -o %t/liboriginal-and-wrapped.so \
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# RUN: -soname liboriginal-and-wrapped.so %t/original.o %t/wrapped.o
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# RUN: ld.lld -shared -o %t/libref-with-original.so %t/ref.o \
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# RUN: --as-needed %t/liboriginal.so --wrap foo
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# RUN: llvm-readelf --dynamic --dyn-syms %t/libref-with-original.so | \
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# RUN: FileCheck --check-prefix=ORIGINAL %s
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# RUN: ld.lld -shared -o %t/libref-with-original-and-wrapped.so %t/ref.o \
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# RUN: --as-needed %t/liboriginal-and-wrapped.so --wrap foo
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# RUN: llvm-readelf --dynamic --dyn-syms %t/libref-with-original-and-wrapped.so | \
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# RUN: FileCheck --check-prefix=ORIGINAL-AND-WRAPPED %s
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# ORIGINAL-NOT: (NEEDED) Shared library: [liboriginal.so]
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# ORIGINAL: Symbol table '.dynsym' contains 3 entries:
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# ORIGINAL: NOTYPE LOCAL DEFAULT UND
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# ORIGINAL-NEXT: NOTYPE GLOBAL DEFAULT UND __wrap_foo
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# ORIGINAL-NEXT: NOTYPE GLOBAL DEFAULT 6 ref
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# ORIGINAL-AND-WRAPPED: (NEEDED) Shared library: [liboriginal-and-wrapped.so]
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# ORIGINAL-AND-WRAPPED: Symbol table '.dynsym' contains 3 entries:
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# ORIGINAL-AND-WRAPPED: NOTYPE LOCAL DEFAULT UND
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# ORIGINAL-AND-WRAPPED-NEXT: NOTYPE GLOBAL DEFAULT UND __wrap_foo
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# ORIGINAL-AND-WRAPPED-NEXT: NOTYPE GLOBAL DEFAULT 6 ref
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#--- original.s
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.globl foo
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foo:
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retq
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#--- wrapped.s
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.globl __wrap_foo
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__wrap_foo:
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retq
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#--- ref.s
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.globl ref
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ref:
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jmp foo@plt
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