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 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 uint32_t ps_argvstr; /* first of 0 or more argument strings */ 45 int ps_nargvstr; /* the number of argument strings */ 46 uint32_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_F(syscallname, flags) { \ 83 .new_sysent = { \ 84 .sy_narg = (sizeof(struct syscallname ## _args ) \ 85 / sizeof(register_t)), \ 86 .sy_call = (sy_call_t *)& syscallname, \ 87 .sy_flags = (flags) \ 88 }, \ 89 .syscall_no = FREEBSD32_SYS_##syscallname \ 90 } 91 92 #define SYSCALL32_INIT_HELPER_COMPAT_F(syscallname, flags) { \ 93 .new_sysent = { \ 94 .sy_narg = (sizeof(struct syscallname ## _args ) \ 95 / sizeof(register_t)), \ 96 .sy_call = (sy_call_t *)& sys_ ## syscallname, \ 97 .sy_flags = (flags) \ 98 }, \ 99 .syscall_no = FREEBSD32_SYS_##syscallname \ 100 } 101 102 #define SYSCALL32_INIT_HELPER(syscallname) \ 103 SYSCALL32_INIT_HELPER_F(syscallname, 0) 104 #define SYSCALL32_INIT_HELPER_COMPAT(syscallname) \ 105 SYSCALL32_INIT_HELPER_COMPAT_F(syscallname, 0) 106 107 int syscall32_module_handler(struct module *mod, int what, void *arg); 108 int syscall32_helper_register(struct syscall_helper_data *sd, int flags); 109 int syscall32_helper_unregister(struct syscall_helper_data *sd); 110 111 struct iovec32; 112 struct rusage32; 113 int freebsd32_copyout_strings(struct image_params *imgp, 114 uintptr_t *stack_base); 115 int freebsd32_copyiniov(struct iovec32 *iovp, u_int iovcnt, 116 struct iovec **iov, int error); 117 int freebsd32_copyinuio(const struct iovec32 *iovp, u_int iovcnt, 118 struct uio **uiop); 119 void freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32); 120 121 struct image_args; 122 int freebsd32_exec_copyin_args(struct image_args *args, const char *fname, 123 enum uio_seg segflg, uint32_t *argv, uint32_t *envv); 124 125 extern int compat_freebsd_32bit; 126 127 #endif /* !_COMPAT_FREEBSD32_FREEBSD32_UTIL_H_ */ 128