futex_64.h File Reference

#include <linux/futex.h>
#include <linux/uaccess.h>
#include <asm/errno.h>

Go to the source code of this file.

Macros
#define	__futex_cas_op(insn, ret, oldval, uaddr, oparg)

Macro Definition Documentation

#define __futex_cas_op	(		insn,
			ret,
			oldval,
			uaddr,
			oparg
	)

Value:

__asm__ __volatile__(               \
    "\n1:   lduwa   [%3] %%asi, %2\n"       \
    "   " insn "\n"             \
    "2: casa    [%3] %%asi, %2, %1\n"       \
    "   cmp %2, %1\n"           \
    "   bne,pn  %%icc, 1b\n"            \
    "    mov    0, %0\n"            \
    "3:\n"                      \
    "   .section .fixup,#alloc,#execinstr\n"    \
    "   .align  4\n"                \
    "4: sethi   %%hi(3b), %0\n"         \
    "   jmpl    %0 + %%lo(3b), %%g0\n"      \
    "    mov    %5, %0\n"           \
    "   .previous\n"                \
    "   .section __ex_table,\"a\"\n"        \
    "   .align  4\n"                \
    "   .word   1b, 4b\n"           \
    "   .word   2b, 4b\n"           \
    "   .previous\n"                \
    : "=&r" (ret), "=&r" (oldval), "=&r" (tem)  \
    : "r" (uaddr), "r" (oparg), "i" (-EFAULT)   \
    : "memory")

Definition at line 8 of file futex_64.h.