nsprpub/pr/include/md/_sony.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
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  15  * The Original Code is the Netscape Portable Runtime (NSPR).
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  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #ifndef nspr_sony_defs_h___
  39 #define nspr_sony_defs_h___
  40
  41 #define PR_LINKER_ARCH          "sony"
  42 #define _PR_SI_SYSNAME          "SONY"
  43 #define _PR_SI_ARCHITECTURE     "mips"
  44 #define PR_DLL_SUFFIX           ".so"
  45
  46 #define _PR_VMBASE              0x30000000
  47 #define _PR_STACK_VMBASE        0x50000000
  48 #define _MD_DEFAULT_STACK_SIZE  65536L
  49 #define _MD_MMAP_FLAGS          MAP_PRIVATE
  50
  51 #define _MD_GET_INTERVAL        _PR_UNIX_GetInterval
  52 #define _MD_INTERVAL_PER_SEC    _PR_UNIX_TicksPerSecond
  53
  54 #if defined(_PR_LOCAL_THREADS_ONLY)
  55 #include <ucontext.h>
  56 #include <sys/regset.h>
  57
  58 #define PR_NUM_GCREGS   NGREG
  59 #define PR_CONTEXT_TYPE ucontext_t
  60
  61 #define CONTEXT(_thread)        (&(_thread)->md.context)
  62
  63 #define _MD_GET_SP(_t)          (_t)->md.context.uc_mcontext.gregs[CXT_SP]
  64
  65 /*
  66 ** Initialize the thread context preparing it to execute _main()
  67 */
  68 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)               \
  69 {                                                                   \
  70     *status = PR_TRUE;  \
  71     getcontext(CONTEXT(_thread));                                    \
  72     CONTEXT(_thread)->uc_stack.ss_sp = (char*) (_thread)->stack->stackBottom; \
  73     CONTEXT(_thread)->uc_stack.ss_size = (_thread)->stack->stackSize; \
  74     _MD_GET_SP(_thread) = (greg_t) (_sp) - 64;             \
  75     makecontext(CONTEXT(_thread), _main, 0);              \
  76 }
  77
  78 #define _MD_SWITCH_CONTEXT(_thread)      \
  79     if (!getcontext(CONTEXT(_thread))) { \
  80         (_thread)->md.errcode = errno;      \
  81         _PR_Schedule();                  \
  82     }
  83
  84 /*
  85 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
  86 */
  87 #define _MD_RESTORE_CONTEXT(_thread)   \
  88 {                                      \
  89     ucontext_t *uc = CONTEXT(_thread); \
  90     uc->uc_mcontext.gregs[CXT_V0] = 1; \
  91     uc->uc_mcontext.gregs[CXT_A3] = 0; \
  92     _MD_SET_CURRENT_THREAD(_thread);      \
  93     errno = (_thread)->md.errcode;        \
  94     setcontext(uc);                    \
  95 }
  96
  97 /* Machine-dependent (MD) data structures */
  98
  99 struct _MDThread {
 100     PR_CONTEXT_TYPE context;
 101     int id;
 102     int errcode;
 103 };
 104
 105 struct _MDThreadStack {
 106     PRInt8 notused;
 107 };
 108
 109 struct _MDLock {
 110     PRInt8 notused;
 111 };
 112
 113 struct _MDSemaphore {
 114     PRInt8 notused;
 115 };
 116
 117 struct _MDCVar {
 118     PRInt8 notused;
 119 };
 120
 121 struct _MDSegment {
 122     PRInt8 notused;
 123 };
 124
 125 /*
 126  * md-specific cpu structure field
 127  */
 128 #define _PR_MD_MAX_OSFD FD_SETSIZE
 129
 130 struct _MDCPU_Unix {
 131     PRCList ioQ;
 132     PRUint32 ioq_timeout;
 133     PRInt32 ioq_max_osfd;
 134     PRInt32 ioq_osfd_cnt;
 135 #ifndef _PR_USE_POLL
 136     fd_set fd_read_set, fd_write_set, fd_exception_set;
 137     PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
 138                                 fd_exception_cnt[_PR_MD_MAX_OSFD];
 139 #else
 140         struct pollfd *ioq_pollfds;
 141         int ioq_pollfds_size;
 142 #endif  /* _PR_USE_POLL */
 143 };
 144
 145 #define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
 146 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
 147 #define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
 148 #define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
 149 #define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
 150 #define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
 151 #define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
 152 #define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
 153 #define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
 154 #define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
 155 #define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
 156 #define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
 157 #define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
 158
 159 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
 160
 161 struct _MDCPU {
 162     struct _MDCPU_Unix md_unix;
 163 };
 164
 165 #define _MD_INIT_LOCKS()
 166 #define _MD_NEW_LOCK(lock) PR_SUCCESS
 167 #define _MD_FREE_LOCK(lock)
 168 #define _MD_LOCK(lock)
 169 #define _MD_UNLOCK(lock)
 170 #define _MD_INIT_IO()
 171 #define _MD_IOQ_LOCK()
 172 #define _MD_IOQ_UNLOCK()
 173
 174 #define _MD_EARLY_INIT                  _MD_EarlyInit
 175 #define _MD_FINAL_INIT                  _PR_UnixInit
 176 #define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
 177 #define _MD_INIT_THREAD                 _MD_InitializeThread
 178 #define _MD_EXIT_THREAD(thread)
 179 #define _MD_SUSPEND_THREAD(thread)
 180 #define _MD_RESUME_THREAD(thread)
 181 #define _MD_CLEAN_THREAD(_thread)
 182
 183 /* The following defines unwrapped versions of select() and poll(). */
 184 extern int _select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
 185 #define _MD_SELECT              _select
 186
 187 #include <sys/poll.h>
 188 extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
 189 #define _MD_POLL _poll
 190
 191 #endif /* _PR_LOCAL_THREADS_ONLY */
 192
 193 #undef  HAVE_STACK_GROWING_UP
 194 #define HAVE_DLL
 195 #define USE_DLFCN
 196 #define NEED_TIME_R
 197 #define NEED_STRFTIME_LOCK
 198
 199 /*
 200 ** Missing function prototypes
 201 */
 202 extern int gethostname(char *name, int namelen);
 203
 204 #endif /* nspr_sony_defs_h___ */