1 /* $NetBSD: linux32_exec.h,v 1.2 2021/11/26 08:56:28 ryo Exp $ */ 2 3 /*- 4 * Copyright (c) 2021 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Ryo Shimizu. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _AARCH64_LINUX32_EXEC_H_ 33 #define _AARCH64_LINUX32_EXEC_H_ 34 35 #include <sys/exec_elf.h> 36 37 #define LINUX32_ELF_AUX_ENTRIES 20 38 #define LINUX32_PLATFORM "v7l" 39 40 /* The extra data (ELF auxiliary table and platform name) on stack */ 41 struct linux32_extra_stack_data { 42 Aux32Info ai[LINUX32_ELF_AUX_ENTRIES]; 43 uint32_t randbytes[4]; 44 char hw_platform[8]; /* sizeof(LINUX32_PLATFORM) + align */ 45 }; 46 47 #define LINUX32_ELF_AUX_ARGSIZ sizeof(struct linux32_extra_stack_data) 48 49 #define LINUX32_ARM_KUSER_HELPER_ADDR 0xffff0000 50 #define LINUX32_ARM_KUSER_HELPER_SIZE 0x00001000 51 /* avoid 0xffff0000-. linux/arm uses this area as kuser_helper */ 52 #define LINUX32_USRSTACK ((vaddr_t)0xfffef000) 53 #define LINUX32_MAXSSIZ MAXSSIZ32 /* from machine/vmparam.h */ 54 55 int linux32_exec_setup_stack(struct lwp *, struct exec_package *); 56 57 #define LINUX32_GO_RT0_SIGNATURE 58 59 #endif /* _AARCH64_LINUX32_EXEC_H_ */ 60