]>
git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/powerpc/powerpc64/tst-setjmp-bug21895-static.c
1 /* Test setjmp interoperability with static dlopen BZ #21895.
2 Copyright (C) 2017-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
24 /* Set TOC area pointed by sp to zero. */
25 #define SET_TOC_TO_ZERO(sp) \
27 unsigned int zero = 0; \
28 asm volatile ("std %0, 24(%1)\n\t" :: "r" (zero), "r" (sp)); \
32 bar (jmp_buf jb
, unsigned long sp
)
36 exit(0); /* Success. */
38 /* This will set TOC are on caller frame (foo) to zero. __longjmp
39 must restore r2 otherwise a segmentation fault will happens after
40 it jumps back to foo. */
48 void *h
= dlopen("setjmp-bug21895.so", RTLD_NOW
);
55 void (*pfoo
)(void) = dlsym(h
, "foo");
62 void (**ppbar
)(jmp_buf, unsigned long) = dlsym(h
, "bar");
75 #include <support/test-driver.c>