1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* 3 * The contents of this file are subject to the Mozilla Public 4 * License Version 1.1 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of 6 * the License at http://www.mozilla.org/MPL/ 7 * 8 * Software distributed under the License is distributed on an "AS 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 10 * implied. See the License for the specific language governing 11 * rights and limitations under the License. 12 * 13 * The Original Code is the Netscape Portable Runtime (NSPR). 14 * 15 * The Initial Developer of the Original Code is Netscape 16 * Communications Corporation. Portions created by Netscape are 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All 18 * Rights Reserved. 19 * 20 * Contributor(s): 21 * 22 * Alternatively, the contents of this file may be used under the 23 * terms of the GNU General Public License Version 2 or later (the 24 * "GPL"), in which case the provisions of the GPL are applicable 25 * instead of those above. If you wish to allow use of your 26 * version of this file only under the terms of the GPL and not to 27 * allow others to use your version of this file under the MPL, 28 * indicate your decision by deleting the provisions above and 29 * replace them with the notice and other provisions required by 30 * the GPL. If you do not delete the provisions above, a recipient 31 * may use your version of this file under either the MPL or the 32 * GPL. 33 */ 34 35 #ifndef nspr_freebsd_defs_h___ 36 #define nspr_freebsd_defs_h___ 37 38 #include "prthread.h" 39 40 #if __FreeBSD__ >= 2 41 #include <osreldate.h> /* for __FreeBSD_version */ 42 #endif 43 #include <sys/syscall.h> 44 45 #define PR_LINKER_ARCH "freebsd" 46 #define _PR_SI_SYSNAME "FREEBSD" 47 #if defined(__i386__) 48 #define _PR_SI_ARCHITECTURE "x86" 49 #elif defined(__alpha) 50 #define _PR_SI_ARCHITECTURE "alpha" 51 #elif defined(__sparc__) 52 #define _PR_SI_ARCHITECTURE "sparc" 53 #else 54 #error "Unknown CPU architecture" 55 #endif 56 #if defined(__ELF__) 57 #define PR_DLL_SUFFIX ".so" 58 #else 59 #define PR_DLL_SUFFIX ".so.1.0" 60 #endif 61 62 #define _PR_VMBASE 0x30000000 63 #define _PR_STACK_VMBASE 0x50000000 64 #define _MD_DEFAULT_STACK_SIZE 65536L 65 #define _MD_MMAP_FLAGS MAP_PRIVATE 66 67 #undef HAVE_STACK_GROWING_UP 68 #define HAVE_DLL 69 #define USE_DLFCN 70 #define _PR_HAVE_SOCKADDR_LEN 71 #define _PR_STAT_HAS_ST_ATIMESPEC 72 #define _PR_NO_LARGE_FILES 73 74 #if defined(_PR_PTHREADS) 75 #if __FreeBSD_version >= 400008 76 /* 77 * libc_r before this version of FreeBSD doesn't have poll(). 78 * Although libc has poll(), it is not thread-safe so we can't 79 * use it in the pthreads version. 80 */ 81 #define _PR_POLL_AVAILABLE 82 #endif 83 #else 84 #if __FreeBSD_version >= 300000 85 #define _PR_POLL_AVAILABLE 86 #define _PR_USE_POLL 87 #endif 88 #endif 89 90 #define _PR_HAVE_SYSV_SEMAPHORES 91 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY 92 93 #if __FreeBSD_version >= 400014 94 #define _PR_INET6 95 #define _PR_HAVE_INET_NTOP 96 #define _PR_HAVE_GETHOSTBYNAME2 97 #define _PR_HAVE_GETADDRINFO 98 #define _PR_INET6_PROBE 99 #endif 100 101 #define USE_SETJMP 102 103 #ifndef _PR_PTHREADS 104 #include <setjmp.h> 105 106 #define PR_CONTEXT_TYPE sigjmp_buf 107 108 #define CONTEXT(_th) ((_th)->md.context) 109 110 #define _MD_GET_SP(_th) (_th)->md.context[0]._sjb[2] 111 #define PR_NUM_GCREGS _JBLEN 112 113 /* 114 ** Initialize a thread context to run "_main()" when started 115 */ 116 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 117 { \ 118 *status = PR_TRUE; \ 119 if (sigsetjmp(CONTEXT(_thread), 1)) { \ 120 _main(); \ 121 } \ 122 _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \ 123 } 124 125 #define _MD_SWITCH_CONTEXT(_thread) \ 126 if (!sigsetjmp(CONTEXT(_thread), 1)) { \ 127 (_thread)->md.errcode = errno; \ 128 _PR_Schedule(); \ 129 } 130 131 /* 132 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 133 */ 134 #define _MD_RESTORE_CONTEXT(_thread) \ 135 { \ 136 errno = (_thread)->md.errcode; \ 137 _MD_SET_CURRENT_THREAD(_thread); \ 138 siglongjmp(CONTEXT(_thread), 1); \ 139 } 140 141 /* Machine-dependent (MD) data structures */ 142 143 struct _MDThread { 144 PR_CONTEXT_TYPE context; 145 int id; 146 int errcode; 147 }; 148 149 struct _MDThreadStack { 150 PRInt8 notused; 151 }; 152 153 struct _MDLock { 154 PRInt8 notused; 155 }; 156 157 struct _MDSemaphore { 158 PRInt8 notused; 159 }; 160 161 struct _MDCVar { 162 PRInt8 notused; 163 }; 164 165 struct _MDSegment { 166 PRInt8 notused; 167 }; 168 169 /* 170 * md-specific cpu structure field 171 */ 172 #define _PR_MD_MAX_OSFD FD_SETSIZE 173 174 struct _MDCPU_Unix { 175 PRCList ioQ; 176 PRUint32 ioq_timeout; 177 PRInt32 ioq_max_osfd; 178 PRInt32 ioq_osfd_cnt; 179 #ifndef _PR_USE_POLL 180 fd_set fd_read_set, fd_write_set, fd_exception_set; 181 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 182 fd_exception_cnt[_PR_MD_MAX_OSFD]; 183 #else 184 struct pollfd *ioq_pollfds; 185 int ioq_pollfds_size; 186 #endif /* _PR_USE_POLL */ 187 }; 188 189 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 190 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 191 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 192 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 193 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 194 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 195 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 196 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 197 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 198 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 199 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 200 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 201 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 202 203 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 204 205 struct _MDCPU { 206 struct _MDCPU_Unix md_unix; 207 }; 208 209 #define _MD_INIT_LOCKS() 210 #define _MD_NEW_LOCK(lock) PR_SUCCESS 211 #define _MD_FREE_LOCK(lock) 212 #define _MD_LOCK(lock) 213 #define _MD_UNLOCK(lock) 214 #define _MD_INIT_IO() 215 #define _MD_IOQ_LOCK() 216 #define _MD_IOQ_UNLOCK() 217 218 extern PRStatus _MD_InitializeThread(PRThread *thread); 219 220 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 221 #define _MD_INIT_THREAD _MD_InitializeThread 222 #define _MD_EXIT_THREAD(thread) 223 #define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread 224 #define _MD_RESUME_THREAD(thread) _MD_resume_thread 225 #define _MD_CLEAN_THREAD(_thread) 226 227 extern PRStatus _MD_CREATE_THREAD( 228 PRThread *thread, 229 void (*start) (void *), 230 PRThreadPriority priority, 231 PRThreadScope scope, 232 PRThreadState state, 233 PRUint32 stackSize); 234 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri); 235 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout); 236 extern PRStatus _MD_WAKEUP_WAITER(PRThread *); 237 extern void _MD_YIELD(void); 238 239 #endif /* ! _PR_PTHREADS */ 240 241 extern void _MD_EarlyInit(void); 242 extern PRIntervalTime _PR_UNIX_GetInterval(void); 243 extern PRIntervalTime _PR_UNIX_TicksPerSecond(void); 244 245 #define _MD_EARLY_INIT _MD_EarlyInit 246 #define _MD_FINAL_INIT _PR_UnixInit 247 #define _MD_GET_INTERVAL _PR_UNIX_GetInterval 248 #define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond 249 250 /* 251 * We wrapped the select() call. _MD_SELECT refers to the built-in, 252 * unwrapped version. 253 */ 254 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv) 255 256 #if defined(_PR_POLL_AVAILABLE) 257 #include <poll.h> 258 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout) 259 #endif 260 261 /* freebsd has INADDR_LOOPBACK defined, but in /usr/include/rpc/types.h, and I didn't 262 want to be including that.. */ 263 #ifndef INADDR_LOOPBACK 264 #define INADDR_LOOPBACK (u_long)0x7F000001 265 #endif 266 267 /* For writev() */ 268 #include <sys/uio.h> 269 270 #endif /* nspr_freebsd_defs_h___ */ 271
