Home | History | Annotate | Line # | Download | only in common
linux_exec.h revision 1.48
      1 /*	$NetBSD: linux_exec.h,v 1.48 2010/07/07 01:30:35 chs 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	2
     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 #define LINUX_ELF_AUX_ENTRIES	13	/* we push 13 parameters */
     86 #endif
     87 
     88 /*
     89  * From Linux's include/linux/elf.h
     90  */
     91 #define LINUX_AT_UID		11	/* real uid */
     92 #define LINUX_AT_EUID		12	/* effective uid */
     93 #define LINUX_AT_GID		13	/* real gid */
     94 #define LINUX_AT_EGID		14	/* effective gid */
     95 #define LINUX_AT_PLATFORM	15	/* CPU string for optimizations */
     96 #define LINUX_AT_HWCAP		16	/* arch dependent CPU capabilities */
     97 #define LINUX_AT_CLKTCK		17	/* frequency times() increments */
     98 #define LINUX_AT_SECURE		23	/* secure mode boolean */
     99 #define LINUX_AT_SYSINFO	32	/* pointer to __kernel_vsyscall */
    100 #define LINUX_AT_SYSINFO_EHDR	33	/* pointer to ELF header */
    101 
    102 /*
    103  * Emulation specific sysctls.
    104  */
    105 #define EMUL_LINUX_KERN			1
    106 #define EMUL_LINUX_MAXID		2
    107 
    108 #define EMUL_LINUX_NAMES { \
    109 	{ 0, 0 }, \
    110 	{ "kern", CTLTYPE_NODE }, \
    111 }
    112 
    113 #define EMUL_LINUX_KERN_OSTYPE		1
    114 #define EMUL_LINUX_KERN_OSRELEASE	2
    115 #define EMUL_LINUX_KERN_VERSION		3
    116 #define EMUL_LINUX_KERN_MAXID		4
    117 
    118 #define EMUL_LINUX_KERN_NAMES { \
    119 	{ 0, 0 }, \
    120 	{ "ostype", CTLTYPE_STRING }, \
    121 	{ "osrelease", CTLTYPE_STRING }, \
    122 	{ "osversion", CTLTYPE_STRING }, \
    123 }
    124 
    125 #ifdef _KERNEL
    126 __BEGIN_DECLS
    127 extern struct emul emul_linux;
    128 
    129 int linux_sysctl(int *, u_int, void *, size_t *, void *, size_t,
    130     struct lwp *);
    131 void linux_setregs(struct lwp *, struct exec_package *, vaddr_t);
    132 #ifdef EXEC_AOUT
    133 int exec_linux_aout_makecmds(struct lwp *, struct exec_package *);
    134 int linux_aout_copyargs(struct lwp *, struct exec_package *,
    135     struct ps_strings *, char **, void *);
    136 #endif
    137 void linux_trapsignal(struct lwp *, ksiginfo_t *);
    138 int linux_usertrap(struct lwp *, vaddr_t, void *);
    139 int linux_lwp_setprivate(struct lwp *, void *);
    140 
    141 void linux_e_proc_exec(struct proc *, struct exec_package *);
    142 void linux_e_proc_fork(struct proc *, struct lwp *, int);
    143 void linux_e_proc_exit(struct proc *);
    144 void linux_e_lwp_fork(struct lwp *, struct lwp *);
    145 void linux_e_lwp_exit(struct lwp *);
    146 
    147 #ifdef EXEC_ELF32
    148 int linux_elf32_probe(struct lwp *, struct exec_package *, void *,
    149     char *, vaddr_t *);
    150 int linux_elf32_copyargs(struct lwp *, struct exec_package *,
    151     struct ps_strings *, char **, void *);
    152 int linux_elf32_signature(struct lwp *, struct exec_package *,
    153         Elf32_Ehdr *, char *);
    154 #ifdef LINUX_GCC_SIGNATURE
    155 int linux_elf32_gcc_signature(struct lwp *l,
    156         struct exec_package *, Elf32_Ehdr *);
    157 #endif
    158 #ifdef LINUX_DEBUGLINK_SIGNATURE
    159 int linux_elf32_debuglink_signature(struct lwp *l,
    160         struct exec_package *, Elf32_Ehdr *);
    161 #endif
    162 #ifdef LINUX_ATEXIT_SIGNATURE
    163 int linux_elf32_atexit_signature(struct lwp *l,
    164         struct exec_package *, Elf32_Ehdr *);
    165 #endif
    166 #endif
    167 #ifdef EXEC_ELF64
    168 int linux_elf64_probe(struct lwp *, struct exec_package *, void *,
    169     char *, vaddr_t *);
    170 int linux_elf64_copyargs(struct lwp *, struct exec_package *,
    171     struct ps_strings *, char **, void *);
    172 int linux_elf64_signature(struct lwp *, struct exec_package *,
    173         Elf64_Ehdr *, char *);
    174 #ifdef LINUX_GCC_SIGNATURE
    175 int linux_elf64_gcc_signature(struct lwp *l,
    176         struct exec_package *, Elf64_Ehdr *);
    177 #endif
    178 #ifdef LINUX_DEBUGLINK_SIGNATURE
    179 int linux_elf64_debuglink_signature(struct lwp *l,
    180         struct exec_package *, Elf64_Ehdr *);
    181 #endif
    182 #ifdef LINUX_ATEXIT_SIGNATURE
    183 int linux_elf64_atexit_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