https://bugs.llvm.org/show_bug.cgi?id=28342
Fangrui Song <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #1 from Fangrui Song <[email protected]> ---
After D64549/D64550/D65716
test/ELF/version-script-reassign.s summaries the linker differences.
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
# RUN: echo '{ global: foo; };' > %tg.ver
# RUN: echo '{ local: foo; };' > %tl.ver
# RUN: echo '{ global: foo; local: *; };' > %tgl.ver
# RUN: echo 'V1 { global: foo; };' > %t1.ver
# RUN: echo 'V2 { global: foo; };' > %t2.ver
# RUN: echo 'V2 { global: notexist; local: f*; };' > %t2w.ver
## Note, ld.bfd errors on these cases.
# RUN: ld.lld -shared %t.o --version-script %tl.ver --version-script %t1.ver \
# RUN: -o %t.so 2>&1 | FileCheck --check-prefix=LOCAL %s
# RUN: llvm-readelf --dyn-syms %t.so | FileCheck --check-prefix=LOCAL-SYM %s
# RUN: ld.lld -shared %t.o --version-script %tg.ver --version-script %t1.ver \
# RUN: -o %t.so 2>&1 | FileCheck --check-prefix=GLOBAL %s
# RUN: llvm-readelf --dyn-syms %t.so | FileCheck --check-prefix=GLOBAL-SYM %s
# RUN: ld.lld -shared %t.o --version-script %tgl.ver --version-script %t1.ver \
# RUN: -o %t.so 2>&1 | FileCheck --check-prefix=GLOBAL %s
# RUN: llvm-readelf --dyn-syms %t.so | FileCheck --check-prefix=GLOBAL-SYM %s
## Note, ld.bfd silently accepts this case.
# RUN: ld.lld -shared %t.o --version-script %t1.ver --version-script %t2.ver \
# RUN: -o %t.so 2>&1 | FileCheck --check-prefix=V1-WARN %s
# RUN: llvm-readelf --dyn-syms %t.so | FileCheck --check-prefix=V1-SYM %s
I think it is probably not bad to consistently warn in these cases.
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