linux/sparc/raw_syscall.h

/*
 * Raw syscalls.
 *
 * Copyright (c) 2018 The strace developers.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef STRACE_RAW_SYSCALL_H
#define STRACE_RAW_SYSCALL_H

# include "kernel_types.h"

static inline kernel_ulong_t
raw_syscall_0(const kernel_ulong_t nr, kernel_ulong_t *err)
{
	register kernel_ulong_t g1 __asm__("g1") = nr;
	register kernel_ulong_t rval __asm__("o0");
	__asm__ __volatile__("ta 0x10\n\t"
			     "bcc 1f\n\t"
			     "mov 0, %0\n\t"
			     "mov 1, %0\n\t"
			     "1:"
			     : "+r"(g1), "=r"(rval)
			     :
			     : "memory", "cc", "f0", "f1", "f2", "f3", "f4",
			       "f5", "f6", "f7", "f8", "f9", "f10", "f11",
			       "f12", "f13", "f14", "f15", "f16", "f17",
			       "f18", "f19", "f20", "f21", "f22", "f23",
			       "f24", "f25", "f26", "f27", "f28", "f29",
			       "f30", "f31");
	*err = g1;
	return rval;
}
# define raw_syscall_0 raw_syscall_0

#endif /* !STRACE_RAW_SYSCALL_H */