nsprpub/pr/include/md/_netbsd.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is the Netscape Portable Runtime (NSPR).
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998-2000
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #ifndef nspr_netbsd_defs_h___
  39 #define nspr_netbsd_defs_h___
  40
  41 #include <sys/syscall.h>
  42 #include <sys/param.h>  /* for __NetBSD_Version__ */
  43
  44 #define PR_LINKER_ARCH  "netbsd"
  45 #define _PR_SI_SYSNAME  "NetBSD"
  46 #if defined(__i386__)
  47 #define _PR_SI_ARCHITECTURE "x86"
  48 #elif defined(__alpha__)
  49 #define _PR_SI_ARCHITECTURE "alpha"
  50 #elif defined(__m68k__)
  51 #define _PR_SI_ARCHITECTURE "m68k"
  52 #elif defined(__powerpc__)
  53 #define _PR_SI_ARCHITECTURE "powerpc"
  54 #elif defined(__sparc_v9__)
  55 #define _PR_SI_ARCHITECTURE "sparc64"
  56 #elif defined(__sparc__)
  57 #define _PR_SI_ARCHITECTURE "sparc"
  58 #elif defined(__mips__)
  59 #define _PR_SI_ARCHITECTURE "mips"
  60 #elif defined(__arm32__) || defined(__arm__) || defined(__armel__) \
  61     || defined(__armeb__)
  62 #define _PR_SI_ARCHITECTURE "arm"
  63 #endif
  64
  65 #if defined(__ELF__)
  66 #define PR_DLL_SUFFIX           ".so"
  67 #else
  68 #define PR_DLL_SUFFIX           ".so.1.0"
  69 #endif
  70
  71 #define _PR_VMBASE              0x30000000
  72 #define _PR_STACK_VMBASE        0x50000000
  73 #define _MD_DEFAULT_STACK_SIZE  65536L
  74 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  75
  76 #undef  HAVE_STACK_GROWING_UP
  77 #define HAVE_DLL
  78 #define USE_DLFCN
  79 #define _PR_HAVE_SOCKADDR_LEN
  80 #define _PR_NO_LARGE_FILES
  81 #define _PR_STAT_HAS_ST_ATIMESPEC
  82 #define _PR_POLL_AVAILABLE
  83 #define _PR_USE_POLL
  84 #define _PR_HAVE_SYSV_SEMAPHORES
  85 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
  86
  87 #if __NetBSD_Version__ >= 105000000
  88 #define _PR_INET6
  89 #define _PR_HAVE_INET_NTOP
  90 #define _PR_HAVE_GETHOSTBYNAME2
  91 #define _PR_HAVE_GETADDRINFO
  92 #define _PR_INET6_PROBE
  93 #endif
  94
  95 #if __NetBSD_Version__ >= 106370000
  96 /* NetBSD 1.6ZK */
  97 #define _PR_HAVE_GETPROTO_R
  98 #define _PR_HAVE_GETPROTO_R_INT
  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 #if defined(__i386__) || defined(__sparc__) || defined(__m68k__) || defined(__powerpc__)
 111 #define JB_SP_INDEX 2
 112 #elif defined(__mips__)
 113 #define JB_SP_INDEX 4
 114 #elif defined(__alpha__)
 115 #define JB_SP_INDEX 34
 116 #elif defined(__arm32__)
 117 /*
 118  * On the arm32, the jmpbuf regs underwent a name change after NetBSD 1.3.
 119  */
 120 #ifdef JMPBUF_REG_R13
 121 #define JB_SP_INDEX JMPBUF_REG_R13
 122 #else
 123 #define JB_SP_INDEX _JB_REG_R13
 124 #endif
 125 #else
 126 #error "Need to define SP index in jmp_buf here"
 127 #endif
 128 #define _MD_GET_SP(_th)    (_th)->md.context[JB_SP_INDEX]
 129
 130 #define PR_NUM_GCREGS   _JBLEN
 131
 132 /*
 133 ** Initialize a thread context to run "_main()" when started
 134 */
 135 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
 136 {  \
 137     *status = PR_TRUE;  \
 138     if (sigsetjmp(CONTEXT(_thread), 1)) {  \
 139         _main();  \
 140     }  \
 141     _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
 142 }
 143
 144 #define _MD_SWITCH_CONTEXT(_thread)  \
 145     if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
 146         (_thread)->md.errcode = errno;  \
 147         _PR_Schedule();  \
 148     }
 149
 150 /*
 151 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
 152 */
 153 #define _MD_RESTORE_CONTEXT(_thread) \
 154 {   \
 155     errno = (_thread)->md.errcode;  \
 156     _MD_SET_CURRENT_THREAD(_thread);  \
 157     siglongjmp(CONTEXT(_thread), 1);  \
 158 }
 159
 160 /* Machine-dependent (MD) data structures */
 161
 162 struct _MDThread {
 163     PR_CONTEXT_TYPE context;
 164     int id;
 165     int errcode;
 166 };
 167
 168 struct _MDThreadStack {
 169     PRInt8 notused;
 170 };
 171
 172 struct _MDLock {
 173     PRInt8 notused;
 174 };
 175
 176 struct _MDSemaphore {
 177     PRInt8 notused;
 178 };
 179
 180 struct _MDCVar {
 181     PRInt8 notused;
 182 };
 183
 184 struct _MDSegment {
 185     PRInt8 notused;
 186 };
 187
 188 /*
 189  * md-specific cpu structure field
 190  */
 191 #define _PR_MD_MAX_OSFD FD_SETSIZE
 192
 193 struct _MDCPU_Unix {
 194     PRCList ioQ;
 195     PRUint32 ioq_timeout;
 196     PRInt32 ioq_max_osfd;
 197     PRInt32 ioq_osfd_cnt;
 198 #ifndef _PR_USE_POLL
 199     fd_set fd_read_set, fd_write_set, fd_exception_set;
 200     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 201                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 202 #else
 203         struct pollfd *ioq_pollfds;
 204         int ioq_pollfds_size;
 205 #endif  /* _PR_USE_POLL */
 206 };
 207
 208 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 209 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 210 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 211 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 212 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 213 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 214 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 215 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 216 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 217 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 218 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 219 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 220 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 221
 222 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 223
 224 struct _MDCPU {
 225     struct _MDCPU_Unix md_unix;
 226 };
 227
 228 #define _MD_INIT_LOCKS()
 229 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 230 #define _MD_FREE_LOCK(lock)
 231 #define _MD_LOCK(lock)
 232 #define _MD_UNLOCK(lock)
 233 #define _MD_INIT_IO()
 234 #define _MD_IOQ_LOCK()
 235 #define _MD_IOQ_UNLOCK()
 236
 237 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
 238 #define _MD_INIT_THREAD                 _MD_InitializeThread
 239 #define _MD_EXIT_THREAD(thread)
 240 #define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
 241 #define _MD_RESUME_THREAD(thread)       _MD_resume_thread
 242 #define _MD_CLEAN_THREAD(_thread)
 243
 244 #endif /* ! _PR_PTHREADS */
 245
 246 #define _MD_EARLY_INIT                  _MD_EarlyInit
 247 #define _MD_FINAL_INIT                  _PR_UnixInit
 248 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
 249 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
 250
 251 /*
 252  * We wrapped the select() call.  _MD_SELECT refers to the built-in,
 253  * unwrapped version.
 254  */
 255 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
 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 #if NetBSD1_3 == 1L
 262 typedef unsigned int nfds_t;
 263 #endif
 264
 265 #endif /* nspr_netbsd_defs_h___ */