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sortix--sortix/libc/stdlib/abort.cpp
Jonas 'Sortie' Termansen 30cd318c17 Implement signals.
Note: This is an incompatible ABI change.
2014-07-22 13:25:39 +02:00

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1.9 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014.
This file is part of the Sortix C Library.
The Sortix 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 3 of the License, or (at your
option) any later version.
The Sortix 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 Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
stdlib/abort.cpp
Abnormal process termination.
*******************************************************************************/
#include <sys/stat.h>
#include <sys/wait.h>
#include <calltrace.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#if defined(__is_sortix_kernel)
#include <sortix/kernel/kernel.h>
#include <sortix/kernel/panic.h>
extern "C" void abort(void)
{
Sortix::PanicF("abort()");
}
#elif __STDC_HOSTED__
extern "C" void abort(void)
{
struct stat st;
if ( stat("/etc/calltrace", &st) == 0 )
calltrace();
if ( stat("/etc/calltrace_loop", &st) == 0 )
while ( true );
sigset_t set_of_sigabrt;
sigemptyset(&set_of_sigabrt);
sigaddset(&set_of_sigabrt, SIGABRT);
sigprocmask(SIG_UNBLOCK, &set_of_sigabrt, NULL);
raise(SIGABRT);
int exit_code = WCONSTRUCT(WNATURE_SIGNALED, 128 + SIGABRT, SIGABRT);
int exit_flags = EXIT_THREAD_PROCESS | EXIT_THREAD_DUMP_CORE;
exit_thread(exit_code, exit_flags, NULL);
__builtin_unreachable();
}
#else
extern "C" void abort(void)
{
while ( true ) { }
__builtin_unreachable();
}
#endif