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_openbsd.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is the Netscape Portable Runtime (NSPR).
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998-2000
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
00029  * under the terms of either the GPL or the LGPL, and not to allow others to
00030  * use your version of this file under the terms of the MPL, indicate your
00031  * decision by deleting the provisions above and replace them with the notice
00032  * and other provisions required by the GPL or the LGPL. If you do not delete
00033  * the provisions above, a recipient may use your version of this file under
00034  * the terms of any one of the MPL, the GPL or the LGPL.
00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nspr_openbsd_defs_h___
00039 #define nspr_openbsd_defs_h___
00040 
00041 #include <sys/syscall.h>
00042 
00043 #define PR_LINKER_ARCH      "openbsd"
00044 #define _PR_SI_SYSNAME  "OPENBSD"
00045 #if defined(__i386__)
00046 #define _PR_SI_ARCHITECTURE "x86"
00047 #elif defined(__alpha__)
00048 #define _PR_SI_ARCHITECTURE "alpha"
00049 #elif defined(__amd64__)
00050 #define _PR_SI_ARCHITECTURE "amd64"
00051 #elif defined(__m68k__)
00052 #define _PR_SI_ARCHITECTURE "m68k"
00053 #elif defined(__powerpc__)
00054 #define _PR_SI_ARCHITECTURE "powerpc"
00055 #elif defined(__sparc__)
00056 #define _PR_SI_ARCHITECTURE "sparc"
00057 #endif
00058 
00059 #define PR_DLL_SUFFIX              ".so.1.0"
00060 
00061 #define _PR_VMBASE              0x30000000
00062 #define _PR_STACK_VMBASE    0x50000000
00063 #define _MD_DEFAULT_STACK_SIZE     65536L
00064 #define _MD_MMAP_FLAGS          MAP_PRIVATE
00065 
00066 #undef  HAVE_STACK_GROWING_UP
00067 #define HAVE_DLL
00068 #define USE_DLFCN
00069 #define _PR_HAVE_SOCKADDR_LEN
00070 #define _PR_NO_LARGE_FILES
00071 #define _PR_STAT_HAS_ST_ATIMESPEC
00072 #define _PR_POLL_AVAILABLE
00073 #define _PR_USE_POLL
00074 #define _PR_HAVE_SYSV_SEMAPHORES
00075 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
00076 
00077 #define _PR_INET6
00078 #define _PR_HAVE_INET_NTOP
00079 #define _PR_HAVE_GETHOSTBYNAME2
00080 #define _PR_HAVE_GETADDRINFO
00081 #define _PR_INET6_PROBE
00082 
00083 #define USE_SETJMP
00084 
00085 #ifndef _PR_PTHREADS
00086 #include <setjmp.h>
00087 
00088 #define PR_CONTEXT_TYPE     sigjmp_buf
00089 
00090 #define CONTEXT(_th) ((_th)->md.context)
00091 
00092 #if defined(__i386__) || defined(__sparc__) || defined(__m68k__)
00093 #define JB_SP_INDEX 2
00094 #elif defined(__powerpc__)
00095 #define JB_SP_INDEX 1
00096 #elif defined(__alpha__)
00097 #define JB_SP_INDEX 34
00098 #elif defined(__amd64__)
00099 #define JB_SP_INDEX 6
00100 #else
00101 #error "Need to define SP index in jmp_buf here"
00102 #endif
00103 #define _MD_GET_SP(_th)    (_th)->md.context[JB_SP_INDEX]
00104 
00105 #define PR_NUM_GCREGS       _JBLEN
00106 
00107 /*
00108 ** Initialize a thread context to run "_main()" when started
00109 */
00110 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
00111 {  \
00112     *status = PR_TRUE;  \
00113     if (sigsetjmp(CONTEXT(_thread), 1)) {  \
00114         _main();  \
00115     }  \
00116     _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
00117 }
00118 
00119 #define _MD_SWITCH_CONTEXT(_thread)  \
00120     if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
00121         (_thread)->md.errcode = errno;  \
00122         _PR_Schedule();  \
00123     }
00124 
00125 /*
00126 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
00127 */
00128 #define _MD_RESTORE_CONTEXT(_thread) \
00129 {   \
00130     errno = (_thread)->md.errcode;  \
00131     _MD_SET_CURRENT_THREAD(_thread);  \
00132     siglongjmp(CONTEXT(_thread), 1);  \
00133 }
00134 
00135 /* Machine-dependent (MD) data structures */
00136 
00137 struct _MDThread {
00138     PR_CONTEXT_TYPE context;
00139     int id;
00140     int errcode;
00141 };
00142 
00143 struct _MDThreadStack {
00144     PRInt8 notused;
00145 };
00146 
00147 struct _MDLock {
00148     PRInt8 notused;
00149 };
00150 
00151 struct _MDSemaphore {
00152     PRInt8 notused;
00153 };
00154 
00155 struct _MDCVar {
00156     PRInt8 notused;
00157 };
00158 
00159 struct _MDSegment {
00160     PRInt8 notused;
00161 };
00162 
00163 /*
00164  * md-specific cpu structure field
00165  */
00166 #define _PR_MD_MAX_OSFD FD_SETSIZE
00167 
00168 struct _MDCPU_Unix {
00169     PRCList ioQ;
00170     PRUint32 ioq_timeout;
00171     PRInt32 ioq_max_osfd;
00172     PRInt32 ioq_osfd_cnt;
00173 #ifndef _PR_USE_POLL
00174     fd_set fd_read_set, fd_write_set, fd_exception_set;
00175     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
00176                             fd_exception_cnt[_PR_MD_MAX_OSFD];
00177 #else
00178        struct pollfd *ioq_pollfds;
00179        int ioq_pollfds_size;
00180 #endif /* _PR_USE_POLL */
00181 };
00182 
00183 #define _PR_IOQ(_cpu)                     ((_cpu)->md.md_unix.ioQ)
00184 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
00185 #define _PR_FD_READ_SET(_cpu)             ((_cpu)->md.md_unix.fd_read_set)
00186 #define _PR_FD_READ_CNT(_cpu)             ((_cpu)->md.md_unix.fd_read_cnt)
00187 #define _PR_FD_WRITE_SET(_cpu)            ((_cpu)->md.md_unix.fd_write_set)
00188 #define _PR_FD_WRITE_CNT(_cpu)            ((_cpu)->md.md_unix.fd_write_cnt)
00189 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
00190 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
00191 #define _PR_IOQ_TIMEOUT(_cpu)             ((_cpu)->md.md_unix.ioq_timeout)
00192 #define _PR_IOQ_MAX_OSFD(_cpu)            ((_cpu)->md.md_unix.ioq_max_osfd)
00193 #define _PR_IOQ_OSFD_CNT(_cpu)            ((_cpu)->md.md_unix.ioq_osfd_cnt)
00194 #define _PR_IOQ_POLLFDS(_cpu)             ((_cpu)->md.md_unix.ioq_pollfds)
00195 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
00196 
00197 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)    32
00198 
00199 struct _MDCPU {
00200     struct _MDCPU_Unix md_unix;
00201 };
00202 
00203 #define _MD_INIT_LOCKS()
00204 #define _MD_NEW_LOCK(lock) PR_SUCCESS
00205 #define _MD_FREE_LOCK(lock)
00206 #define _MD_LOCK(lock)
00207 #define _MD_UNLOCK(lock)
00208 #define _MD_INIT_IO()
00209 #define _MD_IOQ_LOCK()
00210 #define _MD_IOQ_UNLOCK()
00211 
00212 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
00213 #define _MD_INIT_THREAD                 _MD_InitializeThread
00214 #define _MD_EXIT_THREAD(thread)
00215 #define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
00216 #define _MD_RESUME_THREAD(thread)       _MD_resume_thread
00217 #define _MD_CLEAN_THREAD(_thread)
00218 
00219 #endif /* ! _PR_PTHREADS */
00220 
00221 #define _MD_EARLY_INIT                  _MD_EarlyInit
00222 #define _MD_FINAL_INIT                    _PR_UnixInit
00223 #define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
00224 #define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
00225 
00226 /*
00227  * We wrapped the select() call.  _MD_SELECT refers to the built-in,
00228  * unwrapped version.
00229  */
00230 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
00231 #include <poll.h>
00232 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
00233 
00234 #if OpenBSD1_3 == 1L
00235 typedef unsigned int nfds_t;
00236 #endif
00237 
00238 #endif /* nspr_openbsd_defs_h___ */