[urcu.git] / include / urcu / arch / aarch64.h

// SPDX-FileCopyrightText: 2010 Paul E. McKenney, IBM Corporation.
// SPDX-FileCopyrightText: 2009-2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
//
// SPDX-License-Identifier: LGPL-2.1-or-later

#ifndef _URCU_ARCH_AARCH64_H
#define _URCU_ARCH_AARCH64_H

/*
 * arch/aarch64.h: definitions for aarch64 architecture
 */

#include <urcu/compiler.h>
#include <urcu/config.h>
#include <urcu/syscall-compat.h>

#ifdef __cplusplus
extern "C" {
#endif

#include <stdlib.h>
#include <sys/time.h>

/*
 * On Linux, define the membarrier system call number if not yet available in
 * the system headers. aarch64 implements asm-generic/unistd.h system call
 * numbers.
 */
#if (defined(__linux__) && !defined(__NR_membarrier))
#define __NR_membarrier		283
#endif

/*
 * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
 *
 * Backported in RHEL7 gcc 4.8.5-11
 */
#if defined(URCU_GCC_VERSION) && defined(__GNUC_RH_RELEASE__)
# if (URCU_GCC_VERSION == 40805) && (__GNUC_RH_RELEASE__ >= 11)
#  define URCU_GCC_PATCHED_63293
# endif
#endif

#ifdef URCU_GCC_VERSION
# if URCU_GCC_VERSION < 50100 && !defined(URCU_GCC_PATCHED_63293)
#  error Your gcc version performs unsafe access to deallocated stack
# endif
#endif

#define caa_cpu_relax()	__asm__ __volatile__ ("yield" : : : "memory")

#ifdef __cplusplus
}
#endif

#include <urcu/arch/generic.h>

#endif /* _URCU_ARCH_AARCH64_H */
Commit	Line	Data
	1	// SPDX-FileCopyrightText: 2010 Paul E. McKenney, IBM Corporation.
	2	// SPDX-FileCopyrightText: 2009-2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	3	//
	4	// SPDX-License-Identifier: LGPL-2.1-or-later
	5
	6	#ifndef _URCU_ARCH_AARCH64_H
	7	#define _URCU_ARCH_AARCH64_H
	8
	9	/*
	10	* arch/aarch64.h: definitions for aarch64 architecture
	11	*/
	12
	13	#include <urcu/compiler.h>
	14	#include <urcu/config.h>
	15	#include <urcu/syscall-compat.h>
	16
	17	#ifdef __cplusplus
	18	extern "C" {
	19	#endif
	20
	21	#include <stdlib.h>
	22	#include <sys/time.h>
	23
	24	/*
	25	* On Linux, define the membarrier system call number if not yet available in
	26	* the system headers. aarch64 implements asm-generic/unistd.h system call
	27	* numbers.
	28	*/
	29	#if (defined(__linux__) && !defined(__NR_membarrier))
	30	#define __NR_membarrier 283
	31	#endif
	32
	33	/*
	34	* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
	35	*
	36	* Backported in RHEL7 gcc 4.8.5-11
	37	*/
	38	#if defined(URCU_GCC_VERSION) && defined(__GNUC_RH_RELEASE__)
	39	# if (URCU_GCC_VERSION == 40805) && (__GNUC_RH_RELEASE__ >= 11)
	40	# define URCU_GCC_PATCHED_63293
	41	# endif
	42	#endif
	43
	44	#ifdef URCU_GCC_VERSION
	45	# if URCU_GCC_VERSION < 50100 && !defined(URCU_GCC_PATCHED_63293)
	46	# error Your gcc version performs unsafe access to deallocated stack
	47	# endif
	48	#endif
	49
	50	#define caa_cpu_relax() __asm__ __volatile__ ("yield" : : : "memory")
	51
	52	#ifdef __cplusplus
	53	}
	54	#endif
	55
	56	#include <urcu/arch/generic.h>
	57
	58	#endif /* _URCU_ARCH_AARCH64_H */