61376d9bed
The fix is to copy Used when replacing the symbol. Original message: Do not keep shared symbols created from garbage-collected eliminated DSOs. If all references to a DSO happen to be weak, and if the DSO is specified with --as-needed, the DSO is not added to DT_NEEDED. If that happens, we also need to eliminate shared symbols created from the DSO. Otherwise, they become dangling references that point to non-exsitent DSO. Fixes https://bugs.llvm.org/show_bug.cgi?id=36991 Differential Revision: https://reviews.llvm.org/D45536 llvm-svn: 330788
23 lines
676 B
ArmAsm
23 lines
676 B
ArmAsm
# REQUIRES: x86
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# RUN: echo '.globl foo; .type foo, @function; foo:' | \
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# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux - -o %t1.o
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# RUN: ld.lld -shared -o %t1.so -soname libfoo %t1.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t2.o
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# RUN: ld.lld -o %t.exe %t2.o --as-needed %t1.so
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# RUN: llvm-readelf -dynamic-table -dyn-symbols %t.exe | FileCheck %s
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# CHECK-NOT: libfoo
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# CHECK: Symbol table of .hash for image:
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# CHECK-NEXT: Num Buc: Value Size Type Bind Vis Ndx Name
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# CHECK-NEXT: 1 1: 0000000000000000 0 FUNC WEAK DEFAULT UND foo@
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.globl _start
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.weak foo
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_start:
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mov $foo, %eax
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callq foo
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