xref: /src/tests/kernel/arch/x86_64/execregs.h

/*	$NetBSD: execregs.h,v 1.1 2025/02/27 00:55:32 riastradh Exp $	*/

/*-
 * Copyright (c) 2025 The NetBSD Foundation, Inc.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 FOUNDATION OR CONTRIBUTORS
 * 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 */

#ifndef	TESTS_KERNEL_ARCH_X86_64_EXECREGS_H
#define	TESTS_KERNEL_ARCH_X86_64_EXECREGS_H

#include <sys/cdefs.h>

#define	NEXECREGS	14

#ifndef _LOCORE

#include <unistd.h>

/*
 * Ordered by _FRAME_REG in sys/arch/amd64/include/frame_regs.h for
 * convenience of auditing.  Must match h_execregs.S.
 */
static const char *const regname[] = {
	"rdi",
	"rsi",
	"rdx",
	"r10",
	"r8",
	"r9",
	/* arg6: syscall arg from stack, not a real register */
	/* arg7: syscall arg from stack, not a real register */
	/* arg8: syscall arg from stack, not a real register */
	/* arg9: syscall arg from stack, not a real register */
	"rcx",
	"r11",
	"r12",
	"r13",
	"r14",
	"r15",
	"rbp",
	/* rbx: ps_strings */
	"rax",
	/* gs/fs/es/ds: segment registers, not really registers */
	/* trapno: not a register */
	/* err: not a register */
	/* rip: instruction pointer */
	/* cs: segment register */
	/* rflags */
	/* rsp: stack pointer */
	/* ss: stack selector */
};

__CTASSERT(NEXECREGS == __arraycount(regname));

int	execregschild(char *);
pid_t	spawnregschild(char *, int);

#endif	/* _LOCORE */

#endif	/* TESTS_KERNEL_ARCH_X86_64_EXECREGS_H */