diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/setjmp-bug21895.c')
-rw-r--r-- | sysdeps/powerpc/powerpc64/setjmp-bug21895.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/setjmp-bug21895.c b/sysdeps/powerpc/powerpc64/setjmp-bug21895.c new file mode 100644 index 0000000..945a251 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/setjmp-bug21895.c @@ -0,0 +1,51 @@ +/* Shared object part of test for setjmp interoperability with static + dlopen BZ #21895. + Copyright (C) 2017-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <string.h> +#include <setjmp.h> + +/* Copy r1 adress to a local variable. */ +#define GET_STACK_POINTER(sp) \ + ({ \ + asm volatile ("mr %0, 1\n\t" \ + : "=r" (sp)); \ + }) + +jmp_buf jb; +void (*bar)(jmp_buf, unsigned long); + +void +lbar (unsigned long sp) +{ + bar(jb, sp); + for(;;); +} + +void +foo (void) +{ + unsigned long sp; + /* Copy r1 (stack pointer) to sp. It will be use later to get + TOC area. */ + GET_STACK_POINTER(sp); + setjmp(jb); + lbar(sp); + + for(;;); +} |