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_sony.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
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00031  * decision by deleting the provisions above and replace them with the notice
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00033  * the provisions above, a recipient may use your version of this file under
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00035  *
00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nspr_sony_defs_h___
00039 #define nspr_sony_defs_h___
00040  
00041 #define PR_LINKER_ARCH             "sony"
00042 #define _PR_SI_SYSNAME             "SONY"
00043 #define _PR_SI_ARCHITECTURE "mips"
00044 #define PR_DLL_SUFFIX              ".so"
00045  
00046 #define _PR_VMBASE          0x30000000
00047 #define _PR_STACK_VMBASE    0x50000000
00048 #define _MD_DEFAULT_STACK_SIZE     65536L
00049 #define _MD_MMAP_FLAGS          MAP_PRIVATE
00050 
00051 #define _MD_GET_INTERVAL    _PR_UNIX_GetInterval
00052 #define _MD_INTERVAL_PER_SEC       _PR_UNIX_TicksPerSecond
00053 
00054 #if defined(_PR_LOCAL_THREADS_ONLY)
00055 #include <ucontext.h>
00056 #include <sys/regset.h>
00057  
00058 #define PR_NUM_GCREGS       NGREG
00059 #define PR_CONTEXT_TYPE     ucontext_t
00060  
00061 #define CONTEXT(_thread)    (&(_thread)->md.context)
00062  
00063 #define _MD_GET_SP(_t)             (_t)->md.context.uc_mcontext.gregs[CXT_SP]
00064  
00065 /*
00066 ** Initialize the thread context preparing it to execute _main()
00067 */
00068 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)               \
00069 {                                                                   \
00070     *status = PR_TRUE;  \
00071     getcontext(CONTEXT(_thread));                                    \
00072     CONTEXT(_thread)->uc_stack.ss_sp = (char*) (_thread)->stack->stackBottom; \
00073     CONTEXT(_thread)->uc_stack.ss_size = (_thread)->stack->stackSize; \
00074     _MD_GET_SP(_thread) = (greg_t) (_sp) - 64;             \
00075     makecontext(CONTEXT(_thread), _main, 0);              \
00076 }
00077  
00078 #define _MD_SWITCH_CONTEXT(_thread)      \
00079     if (!getcontext(CONTEXT(_thread))) { \
00080         (_thread)->md.errcode = errno;      \
00081         _PR_Schedule();                  \
00082     }
00083  
00084 /*
00085 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
00086 */
00087 #define _MD_RESTORE_CONTEXT(_thread)   \
00088 {                                      \
00089     ucontext_t *uc = CONTEXT(_thread); \
00090     uc->uc_mcontext.gregs[CXT_V0] = 1; \
00091     uc->uc_mcontext.gregs[CXT_A3] = 0; \
00092     _MD_SET_CURRENT_THREAD(_thread);      \
00093     errno = (_thread)->md.errcode;        \
00094     setcontext(uc);                    \
00095 }
00096 
00097 /* Machine-dependent (MD) data structures */
00098 
00099 struct _MDThread {
00100     PR_CONTEXT_TYPE context;
00101     int id;
00102     int errcode;
00103 };
00104 
00105 struct _MDThreadStack {
00106     PRInt8 notused;
00107 };
00108 
00109 struct _MDLock {
00110     PRInt8 notused;
00111 };
00112 
00113 struct _MDSemaphore {
00114     PRInt8 notused;
00115 };
00116 
00117 struct _MDCVar {
00118     PRInt8 notused;
00119 };
00120 
00121 struct _MDSegment {
00122     PRInt8 notused;
00123 };
00124 
00125 /*
00126  * md-specific cpu structure field
00127  */
00128 #define _PR_MD_MAX_OSFD FD_SETSIZE
00129 
00130 struct _MDCPU_Unix {
00131     PRCList ioQ;
00132     PRUint32 ioq_timeout;
00133     PRInt32 ioq_max_osfd;
00134     PRInt32 ioq_osfd_cnt;
00135 #ifndef _PR_USE_POLL
00136     fd_set fd_read_set, fd_write_set, fd_exception_set;
00137     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
00138                             fd_exception_cnt[_PR_MD_MAX_OSFD];
00139 #else
00140        struct pollfd *ioq_pollfds;
00141        int ioq_pollfds_size;
00142 #endif /* _PR_USE_POLL */
00143 };
00144 
00145 #define _PR_IOQ(_cpu)                     ((_cpu)->md.md_unix.ioQ)
00146 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
00147 #define _PR_FD_READ_SET(_cpu)             ((_cpu)->md.md_unix.fd_read_set)
00148 #define _PR_FD_READ_CNT(_cpu)             ((_cpu)->md.md_unix.fd_read_cnt)
00149 #define _PR_FD_WRITE_SET(_cpu)            ((_cpu)->md.md_unix.fd_write_set)
00150 #define _PR_FD_WRITE_CNT(_cpu)            ((_cpu)->md.md_unix.fd_write_cnt)
00151 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
00152 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
00153 #define _PR_IOQ_TIMEOUT(_cpu)             ((_cpu)->md.md_unix.ioq_timeout)
00154 #define _PR_IOQ_MAX_OSFD(_cpu)            ((_cpu)->md.md_unix.ioq_max_osfd)
00155 #define _PR_IOQ_OSFD_CNT(_cpu)            ((_cpu)->md.md_unix.ioq_osfd_cnt)
00156 #define _PR_IOQ_POLLFDS(_cpu)             ((_cpu)->md.md_unix.ioq_pollfds)
00157 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
00158 
00159 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)    32
00160 
00161 struct _MDCPU {
00162     struct _MDCPU_Unix md_unix;
00163 };
00164 
00165 #define _MD_INIT_LOCKS()
00166 #define _MD_NEW_LOCK(lock) PR_SUCCESS
00167 #define _MD_FREE_LOCK(lock)
00168 #define _MD_LOCK(lock)
00169 #define _MD_UNLOCK(lock)
00170 #define _MD_INIT_IO()
00171 #define _MD_IOQ_LOCK()
00172 #define _MD_IOQ_UNLOCK()
00173 
00174 #define _MD_EARLY_INIT             _MD_EarlyInit
00175 #define _MD_FINAL_INIT                    _PR_UnixInit
00176 #define _MD_INIT_RUNNING_CPU(cpu)  _MD_unix_init_running_cpu(cpu)
00177 #define _MD_INIT_THREAD                   _MD_InitializeThread
00178 #define _MD_EXIT_THREAD(thread)
00179 #define       _MD_SUSPEND_THREAD(thread)
00180 #define       _MD_RESUME_THREAD(thread)
00181 #define _MD_CLEAN_THREAD(_thread)
00182 
00183 /* The following defines unwrapped versions of select() and poll(). */
00184 extern int _select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
00185 #define _MD_SELECT              _select
00186 
00187 #include <sys/poll.h>
00188 extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
00189 #define _MD_POLL _poll
00190  
00191 #endif /* _PR_LOCAL_THREADS_ONLY */
00192  
00193 #undef HAVE_STACK_GROWING_UP
00194 #define       HAVE_DLL
00195 #define       USE_DLFCN
00196 #define       NEED_TIME_R
00197 #define NEED_STRFTIME_LOCK
00198  
00199 /*
00200 ** Missing function prototypes
00201 */
00202 extern int gethostname(char *name, int namelen);
00203  
00204 #endif /* nspr_sony_defs_h___ */