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/*
* Raw syscalls.
*
* Copyright (c) 2018-2023 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef STRACE_RAW_SYSCALL_H
# define STRACE_RAW_SYSCALL_H
# include "kernel_types.h"
# if __mips_isa_rev >= 6
# define SYSCALL_CLOBBERLIST \
"memory", "$1", "$3", "$8", "$9", \
"$10", "$11", "$12", "$13", "$14", "$15", \
"$24", "$25"
# else
# define SYSCALL_CLOBBERLIST \
"memory", "hi", "lo", "$1", "$3", "$8", "$9", \
"$10", "$11", "$12", "$13", "$14", "$15", \
"$24", "$25"
# endif
static inline kernel_ulong_t
raw_syscall_0(const kernel_ulong_t nr, kernel_ulong_t *err)
{
register kernel_ulong_t s0 __asm__("$16") = nr;
register kernel_ulong_t v0 __asm__("$2");
register kernel_ulong_t a3 __asm__("$7");
__asm__ __volatile__(".set noreorder\n\t"
"move %0, %2\n\t"
"syscall\n\t"
".set reorder"
: "=r"(v0), "=r"(a3)
: "r"(s0)
: SYSCALL_CLOBBERLIST);
*err = a3;
return v0;
}
# define raw_syscall_0 raw_syscall_0
#endif /* !STRACE_RAW_SYSCALL_H */
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