-/* Copyright (C) 2005, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2024 Free Software Foundation, Inc.
Contributed by Ilie Garbacea <ilie@mips.com>, Chao-ying Fu <fu@mips.com>.
- This file is part of the GNU OpenMP Library (libgomp).
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
Libgomp 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.
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
Libgomp 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
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
- You should have received a copy of the GNU Lesser General Public License
- along with libgomp; see the file COPYING.LIB. If not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
-/* As a special exception, if you link this library with other files, some
- of which are compiled with GCC, to produce an executable, this library
- does not by itself cause the resulting executable to be covered by the
- GNU General Public License. This exception does not however invalidate
- any other reasons why the executable file might be covered by the GNU
- General Public License. */
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
/* Provide target-specific access to the futex system call. */
#include <sys/syscall.h>
+
+#if !defined (SYS_futex)
+#define SYS_futex __NR_futex
+#endif
+
#define FUTEX_WAIT 0
#define FUTEX_WAKE 1
+#ifdef __mips16
+static void __attribute__((noinline,nomips16))
+#else
static inline void
+#endif
sys_futex0 (int *addr, int op, int val)
{
- register unsigned long __v0 asm("$2") = (unsigned long) SYS_futex;
+ register unsigned long __v0 asm("$2");
register unsigned long __a0 asm("$4") = (unsigned long) addr;
register unsigned long __a1 asm("$5") = (unsigned long) op;
register unsigned long __a2 asm("$6") = (unsigned long) val;
register unsigned long __a3 asm("$7") = 0;
- __asm volatile ("syscall"
+ __asm volatile ("li $2, %6\n\t"
+ "syscall"
/* returns $a3 (errno), $v0 (return value) */
: "=r" (__v0), "=r" (__a3)
- /* arguments in v0 (syscall) a0-a3 */
- : "r" (__v0), "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a3)
+ /* arguments in a0-a3, and syscall number */
+ : "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a3),
+ "IK" (SYS_futex)
/* clobbers at, v1, t0-t9, memory */
: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", "$14",
"$15", "$24", "$25", "memory");
{
__asm volatile ("" : : : "memory");
}
-
-static inline void
-atomic_write_barrier (void)
-{
- __sync_synchronize ();
-}