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glibc/support/xsignal.h

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support: Introduce new subdirectory for test infrastructure The new test driver in <support/test-driver.c> has feature parity with the old one. The main difference is that its hooking mechanism is based on functions and function pointers instead of macros. This commit also implements a new environment variable, TEST_COREDUMPS, which disables the code which disables coredumps (that is, it enables them if the invocation environment has not disabled them). <test-skeleton.c> defines wrapper functions so that it is possible to use existing macros with the new-style hook functionality. This commit changes only a few test cases to the new test driver, to make sure that it works as expected.
2016-12-09 07:18:27 +00:00
/* Support functionality for using signals.
Update copyright dates with scripts/update-copyrights.
2017-01-01 00:14:16 +00:00
Copyright (C) 2016-2017 Free Software Foundation, Inc.
support: Introduce new subdirectory for test infrastructure The new test driver in <support/test-driver.c> has feature parity with the old one. The main difference is that its hooking mechanism is based on functions and function pointers instead of macros. This commit also implements a new environment variable, TEST_COREDUMPS, which disables the code which disables coredumps (that is, it enables them if the invocation environment has not disabled them). <test-skeleton.c> defines wrapper functions so that it is possible to use existing macros with the new-style hook functionality. This commit changes only a few test cases to the new test driver, to make sure that it works as expected.
2016-12-09 07:18:27 +00:00
This file is part of the GNU C Library.
The GNU 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 2.1 of the License, or (at your option) any later version.
The GNU 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 GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef SUPPORT_SIGNAL_H
#define SUPPORT_SIGNAL_H
#include <signal.h>
#include <sys/cdefs.h>
__BEGIN_DECLS
Linux: Implement interfaces for memory protection keys This adds system call wrappers for pkey_alloc, pkey_free, pkey_mprotect, and x86-64 implementations of pkey_get and pkey_set, which abstract over the PKRU CPU register and hide the actual number of memory protection keys supported by the CPU. pkey_mprotect with a -1 key is implemented using mprotect, so it will work even if the kernel does not support the pkey_mprotect system call. The system call wrapers use unsigned int instead of unsigned long for parameters, so that no special treatment for x32 is needed. The flags argument is currently unused, and the access rights bit mask is limited to two bits by the current PKRU register layout anyway. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-12-05 14:20:30 +00:00
/* The following functions call the corresponding libc functions and
terminate the process on error. */
void xraise (int sig);
sighandler_t xsignal (int sig, sighandler_t handler);
void xsigaction (int sig, const struct sigaction *newact,
struct sigaction *oldact);
support: Introduce new subdirectory for test infrastructure The new test driver in <support/test-driver.c> has feature parity with the old one. The main difference is that its hooking mechanism is based on functions and function pointers instead of macros. This commit also implements a new environment variable, TEST_COREDUMPS, which disables the code which disables coredumps (that is, it enables them if the invocation environment has not disabled them). <test-skeleton.c> defines wrapper functions so that it is possible to use existing macros with the new-style hook functionality. This commit changes only a few test cases to the new test driver, to make sure that it works as expected.
2016-12-09 07:18:27 +00:00
/* The following functions call the corresponding libpthread functions
and terminate the process on error. */
void xpthread_sigmask (int how, const sigset_t *set, sigset_t *oldset);
__END_DECLS
#endif /* SUPPORT_SIGNAL_H */
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