mirror of
https://github.com/bminor/binutils-gdb.git
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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.
90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2009-2024 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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Test that GDB doesn't lose an event for a thread it didn't know
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about, until an event is reported for it. */
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#define _GNU_SOURCE
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#include <sched.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <sys/wait.h>
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#include <features.h>
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#ifdef __UCLIBC__
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#if !(defined(__UCLIBC_HAS_MMU__) || defined(__ARCH_HAS_MMU__))
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#define HAS_NOMMU
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#endif
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#endif
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#define STACK_SIZE 0x1000
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static int
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tkill (int lwpid, int signo)
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{
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return syscall (__NR_tkill, lwpid, signo);
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}
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static pid_t
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local_gettid (void)
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{
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return syscall (__NR_gettid);
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}
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static int
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fn (void *unused)
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{
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tkill (local_gettid (), SIGUSR1);
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return 0;
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}
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int
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main (int argc, char **argv)
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{
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unsigned char *stack;
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int new_pid, status, ret;
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stack = malloc (STACK_SIZE);
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assert (stack != NULL);
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new_pid = clone (fn, stack + STACK_SIZE, CLONE_FILES
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#if defined(__UCLIBC__) && defined(HAS_NOMMU)
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| CLONE_VM
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#endif /* defined(__UCLIBC__) && defined(HAS_NOMMU) */
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, NULL, NULL, NULL, NULL);
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assert (new_pid > 0);
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/* Note the clone call above didn't use CLONE_THREAD, so it actually
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put the new thread in a new thread group. However, the new clone
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is still reported with PTRACE_EVENT_CLONE to GDB, since we didn't
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use CLONE_VFORK (results in PTRACE_EVENT_VFORK) nor set the
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termination signal to SIGCHLD (results in PTRACE_EVENT_FORK), so
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GDB thinks of it as a new thread of the same inferior. It's a
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bit of an odd setup, but it's not important for what we're
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testing, and, it let's us conveniently use waitpid to wait for
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the clone, which you can't with CLONE_THREAD. */
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ret = waitpid (new_pid, &status, __WALL);
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assert (ret == new_pid);
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assert (WIFSIGNALED (status) && WTERMSIG (status) == SIGUSR1);
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return 0;
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}
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