1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* 3 * The contents of this file are subject to the Mozilla Public 4 * License Version 1.1 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of 6 * the License at http://www.mozilla.org/MPL/ 7 * 8 * Software distributed under the License is distributed on an "AS 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 10 * implied. See the License for the specific language governing 11 * rights and limitations under the License. 12 * 13 * The Original Code is the Netscape Portable Runtime (NSPR). 14 * 15 * The Initial Developer of the Original Code is Netscape 16 * Communications Corporation. Portions created by Netscape are 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All 18 * Rights Reserved. 19 * 20 * Contributor(s): 21 * 22 * Alternatively, the contents of this file may be used under the 23 * terms of the GNU General Public License Version 2 or later (the 24 * "GPL"), in which case the provisions of the GPL are applicable 25 * instead of those above. If you wish to allow use of your 26 * version of this file only under the terms of the GPL and not to 27 * allow others to use your version of this file under the MPL, 28 * indicate your decision by deleting the provisions above and 29 * replace them with the notice and other provisions required by 30 * the GPL. If you do not delete the provisions above, a recipient 31 * may use your version of this file under either the MPL or the 32 * GPL. 33 */ 34 35 #ifndef nspr_nec_defs_h___ 36 #define nspr_nec_defs_h___ 37 38 /* 39 * Internal configuration macros 40 */ 41 42 #define PR_LINKER_ARCH "nec" 43 #define _PR_SI_SYSNAME "NEC" 44 #define _PR_SI_ARCHITECTURE "mips" 45 #define PR_DLL_SUFFIX ".so" 46 47 #define _PR_STACK_VMBASE 0x50000000 48 #define _MD_DEFAULT_STACK_SIZE 65536L 49 #define _MD_MMAP_FLAGS MAP_PRIVATE 50 51 #undef HAVE_STACK_GROWING_UP 52 #define HAVE_DLL 53 #define USE_DLFCN 54 #define NEED_TIME_R 55 #define NEED_STRFTIME_LOCK 56 #define _PR_POLL_AVAILABLE 57 #define _PR_USE_POLL 58 #define _PR_NO_LARGE_FILES 59 #define _PR_STAT_HAS_ST_ATIM_UNION 60 61 #include <ucontext.h> 62 #include <sys/regset.h> 63 64 #define PR_NUM_GCREGS NGREG 65 #define PR_CONTEXT_TYPE ucontext_t 66 67 #define CONTEXT(_thread) (&(_thread)->md.context) 68 69 #define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[CXT_SP] 70 71 /* 72 ** Initialize the thread context preparing it to execute "e(o,a)" 73 */ 74 #define _MD_INIT_CONTEXT(thread, _sp, _main, status) \ 75 { \ 76 *status = PR_TRUE; \ 77 getcontext(CONTEXT(thread)); \ 78 CONTEXT(thread)->uc_stack.ss_sp = (char*) (thread)->stack->stackBottom; \ 79 CONTEXT(thread)->uc_stack.ss_size = (thread)->stack->stackSize; \ 80 _MD_GET_SP(thread) = (greg_t) _sp - 64; \ 81 makecontext(CONTEXT(thread), _main, 0); \ 82 } 83 84 #define _MD_SWITCH_CONTEXT(_thread) \ 85 if (!getcontext(CONTEXT(_thread))) { \ 86 (_thread)->md.errcode = errno; \ 87 _PR_Schedule(); \ 88 } 89 90 /* 91 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 92 */ 93 #define _MD_RESTORE_CONTEXT(_thread) \ 94 { \ 95 ucontext_t *uc = CONTEXT(_thread); \ 96 uc->uc_mcontext.gregs[CXT_V0] = 1; \ 97 uc->uc_mcontext.gregs[CXT_A3] = 0; \ 98 errno = (_thread)->md.errcode; \ 99 _MD_SET_CURRENT_THREAD(_thread); \ 100 setcontext(uc); \ 101 } 102 103 /* Machine-dependent (MD) data structures */ 104 105 struct _MDThread { 106 PR_CONTEXT_TYPE context; 107 int id; 108 int errcode; 109 }; 110 111 struct _MDThreadStack { 112 PRInt8 notused; 113 }; 114 115 struct _MDLock { 116 PRInt8 notused; 117 }; 118 119 struct _MDSemaphore { 120 PRInt8 notused; 121 }; 122 123 struct _MDCVar { 124 PRInt8 notused; 125 }; 126 127 struct _MDSegment { 128 PRInt8 notused; 129 }; 130 131 /* 132 * md-specific cpu structure field 133 */ 134 #define _PR_MD_MAX_OSFD FD_SETSIZE 135 136 struct _MDCPU_Unix { 137 PRCList ioQ; 138 PRUint32 ioq_timeout; 139 PRInt32 ioq_max_osfd; 140 PRInt32 ioq_osfd_cnt; 141 #ifndef _PR_USE_POLL 142 fd_set fd_read_set, fd_write_set, fd_exception_set; 143 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 144 fd_exception_cnt[_PR_MD_MAX_OSFD]; 145 #else 146 struct pollfd *ioq_pollfds; 147 int ioq_pollfds_size; 148 #endif /* _PR_USE_POLL */ 149 }; 150 151 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 152 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 153 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 154 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 155 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 156 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 157 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 158 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 159 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 160 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 161 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 162 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 163 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 164 165 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 166 167 struct _MDCPU { 168 struct _MDCPU_Unix md_unix; 169 }; 170 171 #define _MD_INIT_LOCKS() 172 #define _MD_NEW_LOCK(lock) PR_SUCCESS 173 #define _MD_FREE_LOCK(lock) 174 #define _MD_LOCK(lock) 175 #define _MD_UNLOCK(lock) 176 #define _MD_INIT_IO() 177 #define _MD_IOQ_LOCK() 178 #define _MD_IOQ_UNLOCK() 179 180 #define _MD_EARLY_INIT _MD_EarlyInit 181 #define _MD_FINAL_INIT _PR_UnixInit 182 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 183 #define _MD_INIT_THREAD _MD_InitializeThread 184 #define _MD_EXIT_THREAD(thread) 185 #define _MD_CLEAN_THREAD(_thread) 186 187 #define _MD_SELECT _select 188 #define _MD_POLL _poll 189 190 #define _MD_GET_INTERVAL _PR_UNIX_GetInterval 191 #define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond 192 193 #endif /* nspr_nec_defs_h___ */ 194
