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| 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 /* | |
| 36 * reliantunix.h | |
| 37 * 5/18/96 Taken from nec.h -- chrisk@netscape.com | |
| 38 * 3/14/97 Modified for nspr20 -- chrisk@netscape.com | |
| 39 */ | |
| 40 #ifndef nspr_reliantunix_defs_h___ | |
| 41 #define nspr_reliantunix_defs_h___ | |
| 42 | |
| 43 /* | |
| 44 * Internal configuration macros | |
| 45 */ | |
| 46 | |
| 47 #define PR_LINKER_ARCH "sinix" | |
| 48 #define _PR_SI_SYSNAME "SINIX" | |
| 49 #define _PR_SI_ARCHITECTURE "mips" | |
| 50 #define PR_DLL_SUFFIX ".so" | |
| 51 | |
| 52 #define _PR_VMBASE 0x30000000 | |
| 53 #define _PR_STACK_VMBASE 0x50000000 | |
| 54 #define _MD_DEFAULT_STACK_SIZE (2*65536L) | |
| 55 #define _MD_MMAP_FLAGS MAP_PRIVATE|MAP_FIXED | |
| 56 | |
| 57 #undef HAVE_STACK_GROWING_UP | |
| 58 #define HAVE_DLL | |
| 59 #define USE_DLFCN | |
| 60 #define NEED_STRFTIME_LOCK | |
| 61 #define NEED_TIME_R | |
| 62 #define HAVE_NETCONFIG | |
| 63 #define HAVE_WEAK_IO_SYMBOLS | |
| 64 #define HAVE_WEAK_MALLOC_SYMBOLS | |
| 65 #define _PR_RECV_BROKEN /* recv doesn't work on Unix Domain Sockets */ | |
| 66 #define _PR_POLL_AVAILABLE | |
| 67 #define _PR_USE_POLL | |
| 68 #define _PR_STAT_HAS_ST_ATIM | |
| 69 #define _PR_NO_LARGE_FILES | |
| 70 | |
| 71 /* | |
| 72 * Mike Patnode indicated that it is possibly safe now to use context-switching | |
| 73 * calls that do not change the signal mask, like setjmp vs. sigsetjmp. | |
| 74 * So we'll use our homegrown, getcontext/setcontext-compatible stuff which | |
| 75 * will save us the getcontext/setcontext system calls at each context switch. | |
| 76 * It already works in FastTrack 2.01, so it should do it here :-) | |
| 77 * - chrisk 040497 | |
| 78 */ | |
| 79 #define USE_SETCXT /* temporarily disabled... */ | |
| 80 | |
| 81 #include <ucontext.h> | |
| 82 | |
| 83 #ifdef USE_SETCXT | |
| 84 /* use non-syscall machine language replacement */ | |
| 85 #define _GETCONTEXT getcxt | |
| 86 #define _SETCONTEXT setcxt | |
| 87 /* defined in os_ReliantUNIX.s */ | |
| 88 extern int getcxt(ucontext_t *); | |
| 89 extern int setcxt(ucontext_t *); | |
| 90 #else | |
| 91 #define _GETCONTEXT getcontext | |
| 92 #define _SETCONTEXT setcontext | |
| 93 #endif | |
| 94 | |
| 95 #define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gpregs[CXT_SP] | |
| 96 #define _PR_CONTEXT_TYPE ucontext_t | |
| 97 #define _PR_NUM_GCREGS NGREG | |
| 98 | |
| 99 #define CONTEXT(_thread) (&(_thread)->md.context) | |
| 100 | |
| 101 #define _PR_IS_NATIVE_THREAD_SUPPORTED() 0 | |
| 102 | |
| 103 /* | |
| 104 ** Machine-dependent (MD) data structures. | |
| 105 */ | |
| 106 struct _MDThread { | |
| 107 _PR_CONTEXT_TYPE context; | |
| 108 int id; | |
| 109 int errcode; | |
| 110 }; | |
| 111 | |
| 112 struct _MDThreadStack { | |
| 113 PRInt8 notused; | |
| 114 }; | |
| 115 | |
| 116 struct _MDLock { | |
| 117 PRInt8 notused; | |
| 118 }; | |
| 119 | |
| 120 struct _MDSemaphore { | |
| 121 PRInt8 notused; | |
| 122 }; | |
| 123 | |
| 124 struct _MDCVar { | |
| 125 PRInt8 notused; | |
| 126 }; | |
| 127 | |
| 128 struct _MDSegment { | |
| 129 PRInt8 notused; | |
| 130 }; | |
| 131 | |
| 132 /* | |
| 133 * md-specific cpu structure field | |
| 134 */ | |
| 135 #define _PR_MD_MAX_OSFD FD_SETSIZE | |
| 136 | |
| 137 struct _MDCPU_Unix { | |
| 138 PRCList ioQ; | |
| 139 PRUint32 ioq_timeout; | |
| 140 PRInt32 ioq_max_osfd; | |
| 141 PRInt32 ioq_osfd_cnt; | |
| 142 #ifndef _PR_USE_POLL | |
| 143 fd_set fd_read_set, fd_write_set, fd_exception_set; | |
| 144 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], | |
| 145 fd_exception_cnt[_PR_MD_MAX_OSFD]; | |
| 146 #else | |
| 147 struct pollfd *ioq_pollfds; | |
| 148 int ioq_pollfds_size; | |
| 149 #endif /* _PR_USE_POLL */ | |
| 150 }; | |
| 151 | |
| 152 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) | |
| 153 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) | |
| 154 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) | |
| 155 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) | |
| 156 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) | |
| 157 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) | |
| 158 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) | |
| 159 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) | |
| 160 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) | |
| 161 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) | |
| 162 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) | |
| 163 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) | |
| 164 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) | |
| 165 | |
| 166 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 | |
| 167 | |
| 168 struct _MDCPU { | |
| 169 struct _MDCPU_Unix md_unix; | |
| 170 }; | |
| 171 | |
| 172 #define _MD_INIT_LOCKS() | |
| 173 #define _MD_NEW_LOCK(lock) PR_SUCCESS | |
| 174 #define _MD_FREE_LOCK(lock) | |
| 175 #define _MD_LOCK(lock) | |
| 176 #define _MD_UNLOCK(lock) | |
| 177 #define _MD_INIT_IO() | |
| 178 #define _MD_IOQ_LOCK() | |
| 179 #define _MD_IOQ_UNLOCK() | |
| 180 | |
| 181 /* | |
| 182 ** Initialize the thread context preparing it to execute "_main()" | |
| 183 ** - get a nice, fresh context | |
| 184 ** - set its SP to the stack we allcoated for it | |
| 185 ** - set it to start things at "e" | |
| 186 */ | |
| 187 #define _MD_INIT_CONTEXT(thread, _sp, _main, status) \ | |
| 188 PR_BEGIN_MACRO \ | |
| 189 *status = PR_TRUE; \ | |
| 190 _GETCONTEXT(CONTEXT(thread)); \ | |
| 191 /* this is supposed to point to the stack BASE, not to SP */ \ | |
| 192 CONTEXT(thread)->uc_stack.ss_sp = thread->stack->stackBottom; \ | |
| 193 CONTEXT(thread)->uc_stack.ss_size = thread->stack->stackSize; \ | |
| 194 CONTEXT(thread)->uc_mcontext.gpregs[CXT_SP] = ((unsigned long)_sp - 128) & 0
xfffffff8; \ | |
| 195 CONTEXT(thread)->uc_mcontext.gpregs[CXT_T9] = _main; \ | |
| 196 CONTEXT(thread)->uc_mcontext.gpregs[CXT_EPC] = _main; \ | |
| 197 CONTEXT(thread)->uc_mcontext.gpregs[CXT_RA] = 0; \ | |
| 198 thread->no_sched = 0; \ | |
| 199 PR_END_MACRO | |
| 200 | |
| 201 /* | |
| 202 ** Save current context as it is scheduled away | |
| 203 */ | |
| 204 #define _MD_SWITCH_CONTEXT(_thread) \ | |
| 205 PR_BEGIN_MACRO \ | |
| 206 if (!_GETCONTEXT(CONTEXT(_thread))) { \ | |
| 207 _MD_SAVE_ERRNO(_thread); \ | |
| 208 _MD_SET_LAST_THREAD(_thread); \ | |
| 209 _PR_Schedule(); \ | |
| 210 } \ | |
| 211 PR_END_MACRO | |
| 212 | |
| 213 /* | |
| 214 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT or set up | |
| 215 ** by _MD_INIT_CONTEXT | |
| 216 ** CXT_V0 is the register that holds the return value. | |
| 217 ** We must set it to 1 so that we can see if the return from | |
| 218 ** getcontext() is the result of calling getcontext() or | |
| 219 ** setcontext()... | |
| 220 ** setting a context got with getcontext() appears to | |
| 221 ** return from getcontext(), too! | |
| 222 ** CXT_A3 is the register that holds status when returning | |
| 223 ** from a syscall. It is set to 0 to indicate success, | |
| 224 ** because we want getcontext() on the other side of the magic | |
| 225 ** door to be ok. | |
| 226 */ | |
| 227 #define _MD_RESTORE_CONTEXT(_thread) \ | |
| 228 PR_BEGIN_MACRO \ | |
| 229 ucontext_t *uc = CONTEXT(_thread); \ | |
| 230 uc->uc_mcontext.gpregs[CXT_V0] = 1;\ | |
| 231 uc->uc_mcontext.gpregs[CXT_A3] = 0;\ | |
| 232 _MD_RESTORE_ERRNO(_thread); \ | |
| 233 _MD_SET_CURRENT_THREAD(_thread); \ | |
| 234 _SETCONTEXT(uc); \ | |
| 235 PR_END_MACRO | |
| 236 | |
| 237 #define _MD_SAVE_ERRNO(t) (t)->md.errcode = errno; | |
| 238 #define _MD_RESTORE_ERRNO(t) errno = (t)->md.errcode; | |
| 239 | |
| 240 #define _MD_GET_INTERVAL _PR_UNIX_GetInterval | |
| 241 #define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond | |
| 242 | |
| 243 #define _MD_EARLY_INIT _MD_EarlyInit | |
| 244 #define _MD_FINAL_INIT _PR_UnixInit | |
| 245 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) | |
| 246 #define _MD_INIT_THREAD _MD_InitializeThread | |
| 247 #define _MD_EXIT_THREAD(thread) | |
| 248 #define _MD_SUSPEND_THREAD(thread) | |
| 249 #define _MD_RESUME_THREAD(thread) | |
| 250 #define _MD_CLEAN_THREAD(_thread) | |
| 251 | |
| 252 #if !defined(S_ISSOCK) && defined(S_IFSOCK) | |
| 253 #define S_ISSOCK(mode) ((mode&0xF000) == 0xC000) | |
| 254 #endif | |
| 255 #if !defined(S_ISLNK) && defined(S_IFLNK) | |
| 256 #define S_ISLNK(mode) ((mode&0xA000) == 0xC000) | |
| 257 #endif | |
| 258 | |
| 259 #include <sys/time.h> | |
| 260 #include <sys/types.h> | |
| 261 #include <sys/select.h> | |
| 262 extern int _select(int nfds, fd_set *readfds, fd_set *writefds, | |
| 263 fd_set *execptfds, struct timeval *timeout); | |
| 264 #define _MD_SELECT(nfds,r,w,e,tv) _select(nfds,r,w,e,tv) | |
| 265 #define _MD_POLL _poll | |
| 266 | |
| 267 #endif /* nspr_reliantunix_defs_h___ */ | |
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Chromium Code Reviews
Issue 665543002:
Remove third_party/npapi/npspy. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master