forked from Imagelibrary/binutils-gdb
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2004-2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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enum level { MAIN, OUTER, INNER, LEAF, NR_LEVELS };
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/* Levels completed flag. */
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volatile enum level level = NR_LEVELS;
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void catcher (int signal);
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void
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thrower (enum level next_level, int sig, int itimer, int on_stack)
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{
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level = next_level;
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/* Set up the signal handler. */
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{
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struct sigaction act;
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memset (&act, 0, sizeof (act));
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act.sa_handler = catcher;
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act.sa_flags |= on_stack;
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sigaction (sig, &act, NULL);
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}
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/* Set up a one-off timer. A timer, rather than SIGSEGV, is used as
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after a timer handler finishes the interrupted code can safely
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resume. */
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{
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struct itimerval itime;
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memset (&itime, 0, sizeof (itime));
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itime.it_value.tv_usec = 250 * 1000;
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setitimer (itimer, &itime, NULL);
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}
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/* Wait. */
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while (level != LEAF);
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}
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void
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catcher (int signal)
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{
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/* Find the next level. */
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switch (level)
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{
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case MAIN:
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thrower (OUTER, SIGALRM, ITIMER_REAL, SA_ONSTACK);
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break;
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case OUTER:
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thrower (INNER, SIGVTALRM, ITIMER_VIRTUAL, SA_ONSTACK);
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break;
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case INNER:
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level = LEAF;
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return;
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default:
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abort ();
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}
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}
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int
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main ()
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{
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/* Set up the altstack. */
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{
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static char stack[SIGSTKSZ * NR_LEVELS];
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stack_t alt;
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memset (&alt, 0, sizeof (alt));
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alt.ss_sp = stack;
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alt.ss_size = SIGSTKSZ;
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alt.ss_flags = 0;
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if (sigaltstack (&alt, NULL) < 0)
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{
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perror ("sigaltstack");
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exit (0);
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}
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}
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level = MAIN;
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catcher (0);
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return 0;
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}
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