1 /* $NetBSD: linux_exec.h,v 1.53 2018/08/22 01:05:23 msaitoh 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(__arm__) 54 #include <compat/linux/arch/arm/linux_exec.h> 55 #elif defined(__amd64__) 56 #include <compat/linux/arch/amd64/linux_exec.h> 57 #endif 58 59 60 /* Defines for a.out executables */ 61 #define LINUX_AOUT_HDR_SIZE (sizeof (struct exec)) 62 #define LINUX_AOUT_AUX_ARGSIZ 8 63 64 #define LINUX_N_MAGIC(ep) ((ep)->a_midmag & 0xffff) 65 #define LINUX_N_MACHTYPE(ep) (((ep)->a_midmag >> 16) & 0xff) 66 67 #define LINUX_N_TXTOFF(x,m) \ 68 ((m) == ZMAGIC ? 1024 : ((m) == QMAGIC ? 0 : sizeof (struct exec))) 69 70 #define LINUX_N_DATOFF(x,m) (LINUX_N_TXTOFF(x,m) + (x).a_text) 71 72 #define LINUX_N_TXTADDR(x,m) ((m) == QMAGIC ? PAGE_SIZE : 0) 73 74 #define LINUX__N_SEGMENT_ROUND(x) (((x) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)) 75 76 #define LINUX__N_TXTENDADDR(x,m) (LINUX_N_TXTADDR(x,m)+(x).a_text) 77 78 #define LINUX_N_DATADDR(x,m) \ 79 ((m)==OMAGIC? (LINUX__N_TXTENDADDR(x,m)) \ 80 : (LINUX__N_SEGMENT_ROUND (LINUX__N_TXTENDADDR(x,m)))) 81 82 #define LINUX_N_BSSADDR(x,m) (LINUX_N_DATADDR(x,m) + (x).a_data) 83 84 #ifndef LINUX_MACHDEP_ELF_COPYARGS 85 /* Counted from linux_exec_elf32.c */ 86 #define LINUX_ELF_AUX_ENTRIES 14 87 #endif 88 89 /* 90 * From Linux's include/linux/elf.h 91 */ 92 #define LINUX_AT_UID 11 /* real uid */ 93 #define LINUX_AT_EUID 12 /* effective uid */ 94 #define LINUX_AT_GID 13 /* real gid */ 95 #define LINUX_AT_EGID 14 /* effective gid */ 96 #define LINUX_AT_PLATFORM 15 /* CPU string for optimizations */ 97 #define LINUX_AT_HWCAP 16 /* arch dependent CPU capabilities */ 98 #define LINUX_AT_CLKTCK 17 /* frequency times() increments */ 99 #define LINUX_AT_SECURE 23 /* secure mode boolean */ 100 #define LINUX_AT_RANDOM 25 /* address of 16 random bytes */ 101 #define LINUX_AT_SYSINFO 32 /* pointer to __kernel_vsyscall */ 102 #define LINUX_AT_SYSINFO_EHDR 33 /* pointer to ELF header */ 103 104 #define LINUX_RANDOM_BYTES 16 /* 16 bytes for AT_RANDOM */ 105 106 /* 107 * Emulation specific sysctls. 108 */ 109 #define EMUL_LINUX_KERN 1 110 111 #define EMUL_LINUX_KERN_OSTYPE 1 112 #define EMUL_LINUX_KERN_OSRELEASE 2 113 #define EMUL_LINUX_KERN_VERSION 3 114 115 #ifdef _KERNEL 116 __BEGIN_DECLS 117 extern struct emul emul_linux; 118 119 int linux_sysctl(int *, u_int, void *, size_t *, void *, size_t, 120 struct lwp *); 121 void linux_setregs(struct lwp *, struct exec_package *, vaddr_t); 122 #ifdef EXEC_AOUT 123 int exec_linux_aout_makecmds(struct lwp *, struct exec_package *); 124 int linux_aout_copyargs(struct lwp *, struct exec_package *, 125 struct ps_strings *, char **, void *); 126 #endif 127 void linux_trapsignal(struct lwp *, ksiginfo_t *); 128 int linux_usertrap(struct lwp *, vaddr_t, void *); 129 int linux_lwp_setprivate(struct lwp *, void *); 130 131 void linux_e_proc_exec(struct proc *, struct exec_package *); 132 void linux_e_proc_fork(struct proc *, struct lwp *, int); 133 void linux_e_proc_exit(struct proc *); 134 void linux_e_lwp_fork(struct lwp *, struct lwp *); 135 void linux_e_lwp_exit(struct lwp *); 136 137 #ifdef EXEC_ELF32 138 int linux_elf32_probe(struct lwp *, struct exec_package *, void *, 139 char *, vaddr_t *); 140 int linux_elf32_copyargs(struct lwp *, struct exec_package *, 141 struct ps_strings *, char **, void *); 142 int linux_elf32_signature(struct lwp *, struct exec_package *, 143 Elf32_Ehdr *, char *); 144 #ifdef LINUX_GCC_SIGNATURE 145 int linux_elf32_gcc_signature(struct lwp *l, 146 struct exec_package *, Elf32_Ehdr *); 147 #endif 148 #ifdef LINUX_DEBUGLINK_SIGNATURE 149 int linux_elf32_debuglink_signature(struct lwp *l, 150 struct exec_package *, Elf32_Ehdr *); 151 #endif 152 #ifdef LINUX_ATEXIT_SIGNATURE 153 int linux_elf32_atexit_signature(struct lwp *l, 154 struct exec_package *, Elf32_Ehdr *); 155 #endif 156 #endif 157 #ifdef EXEC_ELF64 158 int linux_elf64_probe(struct lwp *, struct exec_package *, void *, 159 char *, vaddr_t *); 160 int linux_elf64_copyargs(struct lwp *, struct exec_package *, 161 struct ps_strings *, char **, void *); 162 int linux_elf64_signature(struct lwp *, struct exec_package *, 163 Elf64_Ehdr *, char *); 164 #ifdef LINUX_GCC_SIGNATURE 165 int linux_elf64_gcc_signature(struct lwp *l, 166 struct exec_package *, Elf64_Ehdr *); 167 #endif 168 #ifdef LINUX_DEBUGLINK_SIGNATURE 169 int linux_elf64_debuglink_signature(struct lwp *l, 170 struct exec_package *, Elf64_Ehdr *); 171 #endif 172 #ifdef LINUX_ATEXIT_SIGNATURE 173 int linux_elf64_atexit_signature(struct lwp *l, 174 struct exec_package *, Elf64_Ehdr *); 175 #endif 176 #endif 177 __END_DECLS 178 #endif /* !_KERNEL */ 179 180 #endif /* !_LINUX_EXEC_H */ 181