nsprpub/pr/include/md/_nec.h

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