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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2021 Cadence Design Systems Inc. */
#ifndef _XTENSA_PLATFORM_ISS_SIMCALL_GDBIO_H
#define _XTENSA_PLATFORM_ISS_SIMCALL_GDBIO_H
/*
* System call like services offered by the GDBIO host.
*/
#define SYS_open -2
#define SYS_close -3
#define SYS_read -4
#define SYS_write -5
#define SYS_lseek -6
static int errno;
static inline int __simc(int a, int b, int c, int d)
{
register int a1 asm("a2") = a;
register int b1 asm("a6") = b;
register int c1 asm("a3") = c;
register int d1 asm("a4") = d;
__asm__ __volatile__ (
"break 1, 14\n"
: "+r"(a1), "+r"(c1)
: "r"(b1), "r"(d1)
: "memory");
errno = c1;
return a1;
}
#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_GDBIO_H */