lld/test/ELF/weak-shared-gc.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
   3 # RUN: echo -e '.globl __cxa_finalize\n__cxa_finalize:' | \
   4 # RUN:   llvm-mc -filetype=obj -triple=x86_64-pc-linux - -o %t2.o
   5 # RUN: ld.lld %t2.o -o %t2.so -shared
   6 # RUN: ld.lld %t1.o --as-needed --gc-sections %t2.so -o %t
   7 # RUN: llvm-readelf -d --dyn-syms %t | FileCheck %s
   8
   9 # The crt files on linux have a weak reference to __cxa_finalize. It
  10 # is important that a weak undefined reference is produced. Like
  11 # other weak undefined references, the shared library is not marked as
  12 # needed.
  13
  14 # CHECK-NOT: NEEDED
  15 # CHECK: WEAK   DEFAULT UND __cxa_finalize
  16 # CHECK-NOT: NEEDED
  17
  18         .global _start
  19 _start:
  20         .weak   __cxa_finalize
  21         call    __cxa_finalize@PLT