FreeBSD/Linux Kernel Cross Reference
sys/compat/netbsd32/netbsd32_exec.h

     /*      $NetBSD: netbsd32_exec.h,v 1.27 2008/05/29 14:51:26 mrg Exp $   */
     
     /*
      * Copyright (c) 1998, 2001 Matthew R. Green
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #ifndef _NETBSD32_EXEC_H_
    #define _NETBSD32_EXEC_H_
    
    #include <compat/netbsd32/netbsd32.h>
    
    /* from <sys/exec_aout.h> */
    /*
     * Header prepended to each a.out file.
     * only manipulate the a_midmag field via the
     * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros below.
     */
    struct netbsd32_exec {
            netbsd32_u_long a_midmag;       /* htonl(flags<<26 | mid<<16 | magic) */
            netbsd32_u_long a_text;         /* text segment size */
            netbsd32_u_long a_data;         /* initialized data size */
            netbsd32_u_long a_bss;          /* uninitialized data size */
            netbsd32_u_long a_syms;         /* symbol table size */
            netbsd32_u_long a_entry;        /* entry point */
            netbsd32_u_long a_trsize;       /* text relocation size */
            netbsd32_u_long a_drsize;       /* data relocation size */
    };
    
    extern const struct emul emul_netbsd32;
    
    #ifdef EXEC_AOUT
    int netbsd32_exec_aout_prep_zmagic(struct lwp *, struct exec_package *);
    int netbsd32_exec_aout_prep_nmagic(struct lwp *, struct exec_package *);
    int netbsd32_exec_aout_prep_omagic(struct lwp *, struct exec_package *);
    int exec_netbsd32_makecmds(struct lwp *, struct exec_package *);
    #endif
    #ifdef EXEC_ELF32
    int netbsd32_elf32_probe(struct lwp *, struct exec_package *, void *,
        char *, vaddr_t *);
    int netbsd32_elf32_probe_noteless(struct lwp *, struct exec_package *,
        void *, char *, vaddr_t *);
    int netbsd32_elf32_copyargs(struct lwp *, struct exec_package *,
        struct ps_strings *, char **, void *);
    #endif /* EXEC_ELF32 */
    
    static __inline int netbsd32_copyargs(struct lwp *, struct exec_package *,
        struct ps_strings *, char **, void *);
    
    void netbsd32_setregs (struct lwp *, struct exec_package *, u_long stack);
    int netbsd32_sigreturn (struct proc *, void *, register_t *);
    void netbsd32_sendsig (const ksiginfo_t *, const sigset_t *);
    
    extern char netbsd32_esigcode[], netbsd32_sigcode[];
    
    /*
     * We need to copy out all pointers as 32-bit values.
     */
    static __inline int
    netbsd32_copyargs(l, pack, arginfo, stackp, argp)
            struct lwp *l;
            struct exec_package *pack;
            struct ps_strings *arginfo;
            char **stackp;
            void *argp;
    {
            u_int32_t *cpp = (u_int32_t *)*stackp;
            netbsd32_pointer_t dp;
            u_int32_t nullp = 0;
            char *sp;
            size_t len;
            int argc = arginfo->ps_nargvstr;
            int envc = arginfo->ps_nenvstr;
            int error;
    
            if ((error = copyout(&argc, cpp++, sizeof(argc))) != 0)
                    return error;
    
           NETBSD32PTR32(dp, cpp + argc + envc + 2 + pack->ep_esch->es_arglen);
           sp = argp;
   
           /* XXX don't copy them out, remap them! */
           /* remember location of argv for later */
           arginfo->ps_argvstr = (char **)(u_long)cpp;
   
           for (; --argc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
                   if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
                       (error = copyoutstr(sp, NETBSD32PTR64(dp),
                                           ARG_MAX, &len)) != 0)
                           return error;
           }
           if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
                   return error;
   
           /* remember location of envp for later */
           arginfo->ps_envstr = (char **)(u_long)cpp;
   
           for (; --envc >= 0; sp += len, NETBSD32PTR32PLUS(dp, len)) {
                   if ((error = copyout(&dp, cpp++, sizeof(dp))) != 0 ||
                       (error = copyoutstr(sp, NETBSD32PTR64(dp),
                                           ARG_MAX, &len)) != 0)
                           return error;
           }
           if ((error = copyout(&nullp, cpp++, sizeof(nullp))) != 0)
                   return error;
   
           *stackp = (char *)cpp;
           return 0;
   }
   
   #endif /* !_NETBSD32_EXEC_H_ */

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