freebsd32_util.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 1998-1999 Andrew Gallatin
    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  *    in this position and unchanged.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. The name of the author may not be used to endorse or promote products
   17  *    derived from this software withough specific prior written permission
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   29  *
   30  * $FreeBSD$
   31  */
   32 
   33 #ifndef _COMPAT_FREEBSD32_FREEBSD32_UTIL_H_
   34 #define _COMPAT_FREEBSD32_FREEBSD32_UTIL_H_
   35 
   36 #include <sys/cdefs.h>
   37 #include <sys/exec.h>
   38 #include <sys/sysent.h>
   39 #include <sys/uio.h>
   40 
   41 #include <vm/vm.h>
   42 #include <vm/vm_param.h>
   43 #include <vm/pmap.h>
   44 
   45 struct freebsd32_ps_strings {
   46         u_int32_t ps_argvstr;   /* first of 0 or more argument strings */
   47         int     ps_nargvstr;    /* the number of argument strings */
   48         u_int32_t ps_envstr;    /* first of 0 or more environment strings */
   49         int     ps_nenvstr;     /* the number of environment strings */
   50 };
   51 
   52 #if defined(__amd64__)
   53 #include <compat/ia32/ia32_util.h>
   54 #endif
   55 
   56 #define FREEBSD32_PS_STRINGS    \
   57         (FREEBSD32_USRSTACK - sizeof(struct freebsd32_ps_strings))
   58 
   59 extern struct sysent freebsd32_sysent[];
   60 
   61 #define SYSCALL32_MODULE(name, offset, new_sysent, evh, arg)   \
   62 static struct syscall_module_data name##_syscall32_mod = {     \
   63        evh, arg, offset, new_sysent, { 0, NULL }               \
   64 };                                                             \
   65                                                                \
   66 static moduledata_t name##32_mod = {                           \
   67        "sys32/" #name,                                         \
   68        syscall32_module_handler,                               \
   69        &name##_syscall32_mod                                   \
   70 };                                                             \
   71 DECLARE_MODULE(name##32, name##32_mod, SI_SUB_SYSCALLS, SI_ORDER_MIDDLE)
   72 
   73 #define SYSCALL32_MODULE_HELPER(syscallname)            \
   74 static int syscallname##_syscall32 = FREEBSD32_SYS_##syscallname; \
   75 static struct sysent syscallname##_sysent32 = {         \
   76     (sizeof(struct syscallname ## _args )               \
   77      / sizeof(register_t)),                             \
   78     (sy_call_t *)& syscallname                          \
   79 };                                                      \
   80 SYSCALL32_MODULE(syscallname,                           \
   81     & syscallname##_syscall32, & syscallname##_sysent32,\
   82     NULL, NULL);
   83 
   84 #define SYSCALL32_INIT_HELPER_F(syscallname, flags) {           \
   85     .new_sysent = {                                             \
   86         .sy_narg = (sizeof(struct syscallname ## _args )        \
   87             / sizeof(register_t)),                              \
   88         .sy_call = (sy_call_t *)& syscallname,                  \
   89         .sy_flags = (flags)                                     \
   90     },                                                          \
   91     .syscall_no = FREEBSD32_SYS_##syscallname                   \
   92 }
   93 
   94 #define SYSCALL32_INIT_HELPER_COMPAT_F(syscallname, flags) {    \
   95     .new_sysent = {                                             \
   96         .sy_narg = (sizeof(struct syscallname ## _args )        \
   97             / sizeof(register_t)),                              \
   98         .sy_call = (sy_call_t *)& sys_ ## syscallname,          \
   99         .sy_flags = (flags)                                     \
  100     },                                                          \
  101     .syscall_no = FREEBSD32_SYS_##syscallname                   \
  102 }
  103 
  104 #define SYSCALL32_INIT_HELPER(syscallname)                      \
  105     SYSCALL32_INIT_HELPER_F(syscallname, 0)
  106 #define SYSCALL32_INIT_HELPER_COMPAT(syscallname)               \
  107     SYSCALL32_INIT_HELPER_COMPAT_F(syscallname, 0)
  108 
  109 int    syscall32_module_handler(struct module *mod, int what, void *arg);
  110 int    syscall32_helper_register(struct syscall_helper_data *sd, int flags);
  111 int    syscall32_helper_unregister(struct syscall_helper_data *sd);
  112 
  113 struct iovec32;
  114 struct rusage32;
  115 int     freebsd32_copyout_strings(struct image_params *imgp,
  116             uintptr_t *stack_base);
  117 int     freebsd32_copyiniov(struct iovec32 *iovp, u_int iovcnt,
  118             struct iovec **iov, int error);
  119 int     freebsd32_copyinuio(struct iovec32 *iovp, u_int iovcnt,
  120             struct uio **uiop);
  121 void    freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32);
  122 
  123 struct image_args;
  124 int freebsd32_exec_copyin_args(struct image_args *args, const char *fname,
  125             enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv);
  126 
  127 #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