sys/compat/netbsd32/netbsd32_exec.h

   1 /*      $NetBSD: netbsd32_exec.h,v 1.30 2009/08/15 23:39:35 matt Exp $  */
   2
   3 /*
   4  * Copyright (c) 1998, 2001 Matthew R. Green
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef _NETBSD32_EXEC_H_
  30 #define _NETBSD32_EXEC_H_
  31
  32 #include <compat/netbsd32/netbsd32.h>
  33
  34 #ifdef EXEC_AOUT
  35 #include <sys/exec_aout.h>
  36 #endif
  37
  38 /* from <sys/exec_aout.h> */
  39 /*
  40  * Header prepended to each a.out file.
  41  * only manipulate the a_midmag field via the
  42  * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below.
  43  */
  44 struct netbsd32_exec {
  45         netbsd32_u_long a_midmag;       /* htonl(flags<<26 | mid<<16 | magic) */
  46         netbsd32_u_long a_text;         /* text segment size */
  47         netbsd32_u_long a_data;         /* initialized data size */
  48         netbsd32_u_long a_bss;          /* uninitialized data size */
  49         netbsd32_u_long a_syms;         /* symbol table size */
  50         netbsd32_u_long a_entry;        /* entry point */
  51         netbsd32_u_long a_trsize;       /* text relocation size */
  52         netbsd32_u_long a_drsize;       /* data relocation size */
  53 };
  54
  55 extern struct emul emul_netbsd32;
  56
  57 #ifdef EXEC_AOUT
  58 int netbsd32_exec_aout_prep_zmagic(struct lwp *, struct exec_package *);
  59 int netbsd32_exec_aout_prep_nmagic(struct lwp *, struct exec_package *);
  60 int netbsd32_exec_aout_prep_omagic(struct lwp *, struct exec_package *);
  61 int exec_netbsd32_makecmds(struct lwp *, struct exec_package *);
  62 #endif
  63 #ifdef EXEC_ELF32
  64 int netbsd32_elf32_probe(struct lwp *, struct exec_package *, void *,
  65     char *, vaddr_t *);
  66 int netbsd32_elf32_probe_noteless(struct lwp *, struct exec_package *,
  67     void *, char *, vaddr_t *);
  68 int netbsd32_elf32_copyargs(struct lwp *, struct exec_package *,
  69     struct ps_strings *, char **, void *);
  70 #endif /* EXEC_ELF32 */
  71
  72 static __inline int netbsd32_copyargs(struct lwp *, struct exec_package *,
  73     struct ps_strings *, char **, void *);
  74
  75 void netbsd32_setregs (struct lwp *, struct exec_package *, vaddr_t stack);
  76 int netbsd32_sigreturn (struct proc *, void *, register_t *);
  77 void netbsd32_sendsig (const ksiginfo_t *, const sigset_t *);
  78
  79 extern char netbsd32_esigcode[], netbsd32_sigcode[];
  80
  81 /*
  82  * We need to copy out all pointers as 32-bit values.
  83  */
  84 static __inline int
  85 netbsd32_copyargs(struct lwp *l, struct exec_package *pack,
  86                 struct ps_strings *arginfo, char **stackp, void *argp)
  87 {
  88         u_int32_t *cpp = (u_int32_t *)*stackp;
  89         netbsd32_pointer_t dp;
  90         u_int32_t nullp = 0;
  91         char *sp;
  92         size_t len;
  93         int argc = arginfo->ps_nargvstr;
  94         int envc = arginfo->ps_nenvstr;
  95         int error;
  96
  97         if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
  98                 return error;
  99
 100         NETBSD32PTR32(dp, cpp + argc + envc + 2 + pack->ep_esch->es_arglen);
 101         sp = argp;
 102
 103         /* XXX don't copy them out, remap them! */
 104         /* remember location of argv for later */
 105         arginfo->ps_argvstr = (char **)(u_long)cpp;
 106
 107         for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
 108                 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
 109                     (error = copyoutstr(sp, NETBSD32PTR64(dp),
 110                                         ARG_MAX, &len)) != 0)
 111                         return error;
 112         }
 113         if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
 114                 return error;
 115
 116         /* remember location of envp for later */
 117         arginfo->ps_envstr = (char **)(u_long)cpp;
 118
 119         for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
 120                 if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
 121                     (error = copyoutstr(sp, NETBSD32PTR64(dp),
 122                                         ARG_MAX, &len)) != 0)
 123                         return error;
 124         }
 125         if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
 126                 return error;
 127
 128         *stackp = (char *)cpp;
 129         return 0;
 130 }
 131
 132 #endif /* !_NETBSD32_EXEC_H_ */