1 /* $NetBSD: linux_exec.h,v 1.55 2021/11/26 08:56:28 ryo Exp $ */ 2 3 /*- 4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden and Eric Haszlakiewicz. 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 _LINUX_EXEC_H 33 #define _LINUX_EXEC_H 34 35 #if defined(EXEC_AOUT) 36 #include <sys/exec_aout.h> 37 #endif 38 39 #if defined(EXEC_ELF32) || defined(EXEC_ELF64) 40 #include <sys/exec_elf.h> 41 #endif 42 43 #if defined(__i386__) 44 #include <compat/linux/arch/i386/linux_exec.h> 45 #elif defined(__m68k__) 46 #include <compat/linux/arch/m68k/linux_exec.h> 47 #elif defined(__alpha__) 48 #include <compat/linux/arch/alpha/linux_exec.h> 49 #elif defined(__powerpc__) 50 #include <compat/linux/arch/powerpc/linux_exec.h> 51 #elif defined(__mips__) 52 #include <compat/linux/arch/mips/linux_exec.h> 53 #elif defined(__aarch64__) 54 #include <compat/linux/arch/aarch64/linux_exec.h> 55 #elif defined(__arm__) 56 #include <compat/linux/arch/arm/linux_exec.h> 57 #elif defined(__amd64__) 58 #include <compat/linux/arch/amd64/linux_exec.h> 59 #endif 60 61 62 /* Defines for a.out executables */ 63 #define LINUX_AOUT_HDR_SIZE (sizeof (struct exec)) 64 #define LINUX_AOUT_AUX_ARGSIZ 8 65 66 #define LINUX_N_MAGIC(ep) ((ep)->a_midmag & 0xffff) 67 #define LINUX_N_MACHTYPE(ep) (((ep)->a_midmag >> 16) & 0xff) 68 69 #define LINUX_N_TXTOFF(x,m) \ 70 ((m) == ZMAGIC ? 1024 : ((m) == QMAGIC ? 0 : sizeof (struct exec))) 71 72 #define LINUX_N_DATOFF(x,m) (LINUX_N_TXTOFF(x,m) + (x).a_text) 73 74 #define LINUX_N_TXTADDR(x,m) ((m) == QMAGIC ? PAGE_SIZE : 0) 75 76 #define LINUX__N_SEGMENT_ROUND(x) (((x) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)) 77 78 #define LINUX__N_TXTENDADDR(x,m) (LINUX_N_TXTADDR(x,m)+(x).a_text) 79 80 #define LINUX_N_DATADDR(x,m) \ 81 ((m)==OMAGIC? (LINUX__N_TXTENDADDR(x,m)) \ 82 : (LINUX__N_SEGMENT_ROUND (LINUX__N_TXTENDADDR(x,m)))) 83 84 #define LINUX_N_BSSADDR(x,m) (LINUX_N_DATADDR(x,m) + (x).a_data) 85 86 #ifndef LINUX_MACHDEP_ELF_COPYARGS 87 /* Counted from linux_exec_elf32.c */ 88 #define LINUX_ELF_AUX_ENTRIES 14 89 #endif 90 91 /* 92 * From Linux's include/linux/elf.h 93 */ 94 #define LINUX_AT_UID 11 /* real uid */ 95 #define LINUX_AT_EUID 12 /* effective uid */ 96 #define LINUX_AT_GID 13 /* real gid */ 97 #define LINUX_AT_EGID 14 /* effective gid */ 98 #define LINUX_AT_PLATFORM 15 /* CPU string for optimizations */ 99 #define LINUX_AT_HWCAP 16 /* arch dependent CPU capabilities */ 100 #define LINUX_AT_CLKTCK 17 /* frequency times() increments */ 101 #define LINUX_AT_SECURE 23 /* secure mode boolean */ 102 #define LINUX_AT_RANDOM 25 /* address of 16 random bytes */ 103 #define LINUX_AT_SYSINFO 32 /* pointer to __kernel_vsyscall */ 104 #define LINUX_AT_SYSINFO_EHDR 33 /* pointer to ELF header */ 105 106 #define LINUX_RANDOM_BYTES 16 /* 16 bytes for AT_RANDOM */ 107 108 /* 109 * Emulation specific sysctls. 110 */ 111 #define EMUL_LINUX_KERN 1 112 113 #define EMUL_LINUX_KERN_OSTYPE 1 114 #define EMUL_LINUX_KERN_OSRELEASE 2 115 #define EMUL_LINUX_KERN_VERSION 3 116 117 #ifdef _KERNEL 118 __BEGIN_DECLS 119 extern struct emul emul_linux; 120 121 int linux_sysctl(int *, u_int, void *, size_t *, void *, size_t, 122 struct lwp *); 123 void linux_setregs(struct lwp *, struct exec_package *, vaddr_t); 124 #ifdef EXEC_AOUT 125 int exec_linux_aout_makecmds(struct lwp *, struct exec_package *); 126 int linux_aout_copyargs(struct lwp *, struct exec_package *, 127 struct ps_strings *, char **, void *); 128 #endif 129 void linux_trapsignal(struct lwp *, ksiginfo_t *); 130 int linux_usertrap(struct lwp *, vaddr_t, void *); 131 int linux_lwp_setprivate(struct lwp *, void *); 132 133 void linux_e_proc_exec(struct proc *, struct exec_package *); 134 void linux_e_proc_fork(struct proc *, struct lwp *, int); 135 void linux_e_proc_exit(struct proc *); 136 void linux_e_lwp_fork(struct lwp *, struct lwp *); 137 void linux_e_lwp_exit(struct lwp *); 138 139 #ifdef EXEC_ELF32 140 int linux_elf32_probe(struct lwp *, struct exec_package *, void *, 141 char *, vaddr_t *); 142 int linux_elf32_copyargs(struct lwp *, struct exec_package *, 143 struct ps_strings *, char **, void *); 144 int linux_elf32_signature(struct lwp *, struct exec_package *, 145 Elf32_Ehdr *, char *); 146 #ifdef LINUX_GCC_SIGNATURE 147 int linux_elf32_gcc_signature(struct lwp *l, 148 struct exec_package *, Elf32_Ehdr *); 149 #endif 150 #ifdef LINUX_DEBUGLINK_SIGNATURE 151 int linux_elf32_debuglink_signature(struct lwp *l, 152 struct exec_package *, Elf32_Ehdr *); 153 #endif 154 #ifdef LINUX_ATEXIT_SIGNATURE 155 int linux_elf32_atexit_signature(struct lwp *l, 156 struct exec_package *, Elf32_Ehdr *); 157 #endif 158 #ifdef LINUX_GO_RT0_SIGNATURE 159 int linux_elf32_go_rt0_signature(struct lwp *l, 160 struct exec_package *, Elf32_Ehdr *); 161 #endif 162 #endif 163 #ifdef EXEC_ELF64 164 int linux_elf64_probe(struct lwp *, struct exec_package *, void *, 165 char *, vaddr_t *); 166 int linux_elf64_copyargs(struct lwp *, struct exec_package *, 167 struct ps_strings *, char **, void *); 168 int linux_elf64_signature(struct lwp *, struct exec_package *, 169 Elf64_Ehdr *, char *); 170 #ifdef LINUX_GCC_SIGNATURE 171 int linux_elf64_gcc_signature(struct lwp *l, 172 struct exec_package *, Elf64_Ehdr *); 173 #endif 174 #ifdef LINUX_DEBUGLINK_SIGNATURE 175 int linux_elf64_debuglink_signature(struct lwp *l, 176 struct exec_package *, Elf64_Ehdr *); 177 #endif 178 #ifdef LINUX_ATEXIT_SIGNATURE 179 int linux_elf64_atexit_signature(struct lwp *l, 180 struct exec_package *, Elf64_Ehdr *); 181 #endif 182 #ifdef LINUX_GO_RT0_SIGNATURE 183 int linux_elf64_go_rt0_signature(struct lwp *l, 184 struct exec_package *, Elf64_Ehdr *); 185 #endif 186 #endif 187 __END_DECLS 188 #endif /* !_KERNEL */ 189 190 #endif /* !_LINUX_EXEC_H */ 191