1/* Tests register values retrieved by getcontext() for mips o32.
2 Copyright (C) 2017-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
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.
14
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/>. */
18
19#include <errno.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <string.h>
23#include <ucontext.h>
24
25
26#if !defined __mips__ || _MIPS_SIM != _ABIO32
27# error "MIPS O32 specific test."
28#endif
29
30#define SP_REG 29
31
32static int
33do_test (void)
34{
35 ucontext_t ctx;
36 memset (&ctx, 0, sizeof (ctx));
37 int status = getcontext (ucp: &ctx);
38 if (status)
39 {
40 printf (format: "\ngetcontext() failed, errno: %d.\n", errno);
41 return 1;
42 }
43
44 if (ctx.uc_mcontext.gregs[SP_REG] == 0
45 || ctx.uc_mcontext.gregs[SP_REG] > 0xffffffff)
46 {
47 printf (format: "\nError getcontext(): invalid $sp = 0x%llx.\n",
48 ctx.uc_mcontext.gregs[SP_REG]);
49 return 1;
50 }
51
52 if (ctx.uc_mcontext.pc == 0
53 || ctx.uc_mcontext.pc > 0xffffffff)
54 {
55 printf (format: "\nError getcontext(): invalid ctx.uc_mcontext.pc = 0x%llx.\n",
56 ctx.uc_mcontext.pc);
57 return 1;
58 }
59
60 return 0;
61}
62
63#include <support/test-driver.c>
64

source code of glibc/sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c