1 /*- 2 * Copyright (c) 1994 Christos Zoulas 3 * Copyright (c) 1995 Frank van der Linden 4 * Copyright (c) 1995 Scott Bartram 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 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp 30 * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp 31 * $FreeBSD$ 32 */ 33 34 #ifndef _LINUX_UTIL_H_ 35 #define _LINUX_UTIL_H_ 36 37 #include <vm/vm.h> 38 #include <vm/vm_param.h> 39 #include <vm/pmap.h> 40 #include <sys/exec.h> 41 #include <sys/sysent.h> 42 #include <sys/syslog.h> 43 #include <sys/cdefs.h> 44 #include <sys/uio.h> 45 46 MALLOC_DECLARE(M_LINUX); 47 MALLOC_DECLARE(M_EPOLL); 48 MALLOC_DECLARE(M_FUTEX); 49 MALLOC_DECLARE(M_FUTEX_WP); 50 51 extern const char linux_emul_path[]; 52 53 int linux_emul_convpath(struct thread *, const char *, enum uio_seg, char **, int, int); 54 55 #define LCONVPATH_AT(td, upath, pathp, i, dfd) \ 56 do { \ 57 int _error; \ 58 \ 59 _error = linux_emul_convpath(td, upath, UIO_USERSPACE, \ 60 pathp, i, dfd); \ 61 if (*(pathp) == NULL) \ 62 return (_error); \ 63 } while (0) 64 65 #define LCONVPATH(td, upath, pathp, i) \ 66 LCONVPATH_AT(td, upath, pathp, i, AT_FDCWD) 67 68 #define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0) 69 #define LCONVPATHEXIST_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 0, dfd) 70 #define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1) 71 #define LCONVPATHCREAT_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 1, dfd) 72 #define LFREEPATH(path) free(path, M_TEMP) 73 74 #define DUMMY(s) \ 75 LIN_SDT_PROBE_DEFINE0(dummy, s, entry); \ 76 LIN_SDT_PROBE_DEFINE0(dummy, s, not_implemented); \ 77 LIN_SDT_PROBE_DEFINE1(dummy, s, return, "int"); \ 78 int \ 79 linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args) \ 80 { \ 81 static pid_t pid; \ 82 \ 83 LIN_SDT_PROBE0(dummy, s, entry); \ 84 \ 85 if (pid != td->td_proc->p_pid) { \ 86 linux_msg(td, "syscall %s not implemented", #s); \ 87 LIN_SDT_PROBE0(dummy, s, not_implemented); \ 88 pid = td->td_proc->p_pid; \ 89 }; \ 90 \ 91 LIN_SDT_PROBE1(dummy, s, return, ENOSYS); \ 92 return (ENOSYS); \ 93 } \ 94 struct __hack 95 96 /* 97 * This is for the syscalls that are not even yet implemented in Linux. 98 * 99 * They're marked as UNIMPL in syscall.master so it will 100 * have nosys record in linux_sysent[]. 101 */ 102 #define UNIMPLEMENTED(s) 103 104 void linux_msg(const struct thread *td, const char *fmt, ...) 105 __printflike(2, 3); 106 107 struct linux_device_handler { 108 char *bsd_driver_name; 109 char *linux_driver_name; 110 char *bsd_device_name; 111 char *linux_device_name; 112 int linux_major; 113 int linux_minor; 114 int linux_char_device; 115 }; 116 117 int linux_device_register_handler(struct linux_device_handler *h); 118 int linux_device_unregister_handler(struct linux_device_handler *h); 119 char *linux_driver_get_name_dev(device_t dev); 120 int linux_driver_get_major_minor(const char *node, int *major, int *minor); 121 char *linux_get_char_devices(void); 122 void linux_free_get_char_devices(char *string); 123 124 #if defined(KTR) 125 126 #define KTR_LINUX KTR_SUBSYS 127 #define LINUX_CTRFMT(nm, fmt) #nm"("fmt")" 128 129 #define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) do { \ 130 CTR6(KTR_LINUX, LINUX_CTRFMT(f, m), \ 131 p1, p2, p3, p4, p5, p6); \ 132 } while (0) 133 134 #define LINUX_CTR(f) LINUX_CTR6(f, "", 0, 0, 0, 0, 0, 0) 135 #define LINUX_CTR0(f, m) LINUX_CTR6(f, m, 0, 0, 0, 0, 0, 0) 136 #define LINUX_CTR1(f, m, p1) LINUX_CTR6(f, m, p1, 0, 0, 0, 0, 0) 137 #define LINUX_CTR2(f, m, p1, p2) LINUX_CTR6(f, m, p1, p2, 0, 0, 0, 0) 138 #define LINUX_CTR3(f, m, p1, p2, p3) LINUX_CTR6(f, m, p1, p2, p3, 0, 0, 0) 139 #define LINUX_CTR4(f, m, p1, p2, p3, p4) LINUX_CTR6(f, m, p1, p2, p3, p4, 0, 0) 140 #define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) LINUX_CTR6(f, m, p1, p2, p3, p4, p5, 0) 141 #else 142 #define LINUX_CTR(f) 143 #define LINUX_CTR0(f, m) 144 #define LINUX_CTR1(f, m, p1) 145 #define LINUX_CTR2(f, m, p1, p2) 146 #define LINUX_CTR3(f, m, p1, p2, p3) 147 #define LINUX_CTR4(f, m, p1, p2, p3, p4) 148 #define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) 149 #define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) 150 #endif 151 152 #endif /* !_LINUX_UTIL_H_ */ 153