freebsd32_util.h

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    1 /*-
    2  * Copyright (c) 1998-1999 Andrew Gallatin
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer
   10  *    in this position and unchanged.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software withough specific prior written permission
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD: releng/11.0/sys/compat/freebsd32/freebsd32_util.h 273707 2014-10-26 19:42:44Z mjg $
   29  */
   30 
   31 #ifndef _COMPAT_FREEBSD32_FREEBSD32_UTIL_H_
   32 #define _COMPAT_FREEBSD32_FREEBSD32_UTIL_H_
   33 
   34 #include <sys/cdefs.h>
   35 #include <sys/exec.h>
   36 #include <sys/sysent.h>
   37 #include <sys/uio.h>
   38 
   39 #include <vm/vm.h>
   40 #include <vm/vm_param.h>
   41 #include <vm/pmap.h>
   42 
   43 struct freebsd32_ps_strings {
   44         u_int32_t ps_argvstr;   /* first of 0 or more argument strings */
   45         int     ps_nargvstr;    /* the number of argument strings */
   46         u_int32_t ps_envstr;    /* first of 0 or more environment strings */
   47         int     ps_nenvstr;     /* the number of environment strings */
   48 };
   49 
   50 #if defined(__amd64__)
   51 #include <compat/ia32/ia32_util.h>
   52 #endif
   53 
   54 #define FREEBSD32_PS_STRINGS    \
   55         (FREEBSD32_USRSTACK - sizeof(struct freebsd32_ps_strings))
   56 
   57 extern struct sysent freebsd32_sysent[];
   58 
   59 #define SYSCALL32_MODULE(name, offset, new_sysent, evh, arg)   \
   60 static struct syscall_module_data name##_syscall32_mod = {     \
   61        evh, arg, offset, new_sysent, { 0, NULL }               \
   62 };                                                             \
   63                                                                \
   64 static moduledata_t name##32_mod = {                           \
   65        "sys32/" #name,                                         \
   66        syscall32_module_handler,                               \
   67        &name##_syscall32_mod                                   \
   68 };                                                             \
   69 DECLARE_MODULE(name##32, name##32_mod, SI_SUB_SYSCALLS, SI_ORDER_MIDDLE)
   70 
   71 #define SYSCALL32_MODULE_HELPER(syscallname)            \
   72 static int syscallname##_syscall32 = FREEBSD32_SYS_##syscallname; \
   73 static struct sysent syscallname##_sysent32 = {         \
   74     (sizeof(struct syscallname ## _args )               \
   75      / sizeof(register_t)),                             \
   76     (sy_call_t *)& syscallname                          \
   77 };                                                      \
   78 SYSCALL32_MODULE(syscallname,                           \
   79     & syscallname##_syscall32, & syscallname##_sysent32,\
   80     NULL, NULL);
   81 
   82 #define SYSCALL32_INIT_HELPER(syscallname) {                    \
   83     .new_sysent = {                                             \
   84         .sy_narg = (sizeof(struct syscallname ## _args )        \
   85             / sizeof(register_t)),                              \
   86         .sy_call = (sy_call_t *)& syscallname,                  \
   87     },                                                          \
   88     .syscall_no = FREEBSD32_SYS_##syscallname                   \
   89 }
   90 
   91 #define SYSCALL32_INIT_HELPER_COMPAT(syscallname) {             \
   92     .new_sysent = {                                             \
   93         .sy_narg = (sizeof(struct syscallname ## _args )        \
   94             / sizeof(register_t)),                              \
   95         .sy_call = (sy_call_t *)& sys_ ## syscallname,          \
   96     },                                                          \
   97     .syscall_no = FREEBSD32_SYS_##syscallname                   \
   98 }
   99 
  100 int    syscall32_register(int *offset, struct sysent *new_sysent,
  101             struct sysent *old_sysent, int flags);
  102 int    syscall32_deregister(int *offset, struct sysent *old_sysent);
  103 int    syscall32_module_handler(struct module *mod, int what, void *arg);
  104 int    syscall32_helper_register(struct syscall_helper_data *sd, int flags);
  105 int    syscall32_helper_unregister(struct syscall_helper_data *sd);
  106 
  107 struct iovec32;
  108 struct rusage32;
  109 register_t *freebsd32_copyout_strings(struct image_params *imgp);
  110 int     freebsd32_copyiniov(struct iovec32 *iovp, u_int iovcnt,
  111             struct iovec **iov, int error);
  112 void    freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32);
  113 
  114 struct image_args;
  115 int freebsd32_exec_copyin_args(struct image_args *args, char *fname,
  116             enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv);
  117 
  118 #endif /* !_COMPAT_FREEBSD32_FREEBSD32_UTIL_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/compat/freebsd32/freebsd32_util.h

FreeBSD/Linux Kernel Cross Reference
sys/compat/freebsd32/freebsd32_util.h