lld/test/ELF/undef-suggest-extern-c.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   3
   4 ## The reference is mangled while the definition is not, suggest a missing
   5 ## extern "C".
   6 # RUN: echo 'call _Z3fooi' | llvm-mc -filetype=obj -triple=x86_64 - -o %t1.o
   7 # RUN: not ld.lld %t.o %t1.o -o /dev/null 2>&1 | FileCheck %s
   8
   9 # CHECK:      error: undefined symbol: foo(int)
  10 # CHECK-NEXT: >>> referenced by {{.*}}
  11 # CHECK-NEXT: >>> did you mean: extern "C" foo
  12
  13 ## Don't suggest for nested names like F::foo() and foo::foo().
  14 # RUN: echo 'call _ZN1F3fooEv; call _ZN3fooC1Ev' | llvm-mc -filetype=obj -triple=x86_64 - -o %t2.o
  15 # RUN: not ld.lld %t.o %t2.o -o /dev/null 2>&1 | FileCheck /dev/null --implicit-check-not='did you mean'
  16
  17 .globl _start, foo
  18 _start:
  19 foo: