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_ */ 128