-/* Copyright (C) 2005-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2020 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.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 General Public License as published by
static inline void
futex_wait (int *addr, int val)
{
- register long r10 __asm__("%r10");
long res;
- r10 = 0;
+ register long r10 __asm__("%r10") = 0;
__asm volatile ("syscall"
: "=a" (res)
: "0" (SYS_futex), "D" (addr), "S" (gomp_futex_wait),
{
gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
- r10 = 0;
__asm volatile ("syscall"
: "=a" (res)
: "0" (SYS_futex), "D" (addr), "S" (gomp_futex_wait),
# define SYS_futex 240
# endif
-# ifdef __PIC__
-
-static inline long
-sys_futex0 (int *addr, int op, int val)
-{
- long res;
-
- __asm volatile ("xchgl\t%%ebx, %2\n\t"
- "int\t$0x80\n\t"
- "xchgl\t%%ebx, %2"
- : "=a" (res)
- : "0"(SYS_futex), "r" (addr), "c"(op),
- "d"(val), "S"(0)
- : "memory");
- return res;
-}
-
-# else
-
-static inline long
-sys_futex0 (int *addr, int op, int val)
+static inline void
+futex_wait (int *addr, int val)
{
long res;
__asm volatile ("int $0x80"
: "=a" (res)
- : "0"(SYS_futex), "b" (addr), "c"(op),
- "d"(val), "S"(0)
+ : "0" (SYS_futex), "b" (addr), "c" (gomp_futex_wait),
+ "d" (val), "S" (0)
: "memory");
- return res;
-}
-
-# endif /* __PIC__ */
-
-static inline void
-futex_wait (int *addr, int val)
-{
- long res = sys_futex0 (addr, gomp_futex_wait, val);
if (__builtin_expect (res == -ENOSYS, 0))
{
gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
- sys_futex0 (addr, gomp_futex_wait, val);
+ __asm volatile ("int $0x80"
+ : "=a" (res)
+ : "0" (SYS_futex), "b" (addr), "c" (gomp_futex_wait),
+ "d" (val), "S" (0)
+ : "memory");
}
}
static inline void
futex_wake (int *addr, int count)
{
- long res = sys_futex0 (addr, gomp_futex_wake, count);
+ long res;
+
+ __asm volatile ("int $0x80"
+ : "=a" (res)
+ : "0" (SYS_futex), "b" (addr), "c" (gomp_futex_wake),
+ "d" (count)
+ : "memory");
if (__builtin_expect (res == -ENOSYS, 0))
{
gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
- sys_futex0 (addr, gomp_futex_wake, count);
+ __asm volatile ("int $0x80"
+ : "=a" (res)
+ : "0" (SYS_futex), "b" (addr), "c" (gomp_futex_wake),
+ "d" (count)
+ : "memory");
}
}
-
#endif /* __x86_64__ */
static inline void