gcc/testsuite/gcc.dg/darwin-weakimport-3.c

   1 /* { dg-do compile { target *-*-darwin* } } */
   2
   3 /* Here we want to test if "foo" gets placed into a coalesced
   4    section (it should not).
   5
   6    However, for i386, and PIC code we have a "get_pc thunk" that
   7    is (correctly) placed in a coalesced section when using an older
   8    linker - also unwind tables are emitted into coalesced.
   9
  10    With modern linkers this is moot, since even weak symbols
  11    are emitted into the regular sections.
  12
  13    To avoid the unwind tables -fno-asynchronous-unwind-tables
  14    and fno-unwind-tables (since EH contains coalesced data).
  15    To ensure that we emit code for an older linker -mtarget-linker
  16    To avoid the get_pc thunk optimise at least O1.  */
  17
  18 /* { dg-options "-fno-asynchronous-unwind-tables -fno-unwind-tables -O1 -mtarget-linker 85.2" } */
  19 /* { dg-require-weak "" } */
  20
  21 /* { dg-final { scan-assembler-not "coalesced" } } */
  22
  23 extern void foo(void) __attribute__((weak_import));
  24
  25 void foo(void)
  26 {
  27 }