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comparison nspr/pr/include/md/_linux.h @ 0:1e5118fa0cb1

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This is NSS with a Cmake Buildsyste To compile a static NSS library for Windows we've used the Chromium-NSS fork and added a Cmake buildsystem to compile it statically for Windows. See README.chromium for chromium changes and README.trustbridge for our modifications.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 10:47:06 +0200
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1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 /*
7 * This file is used by not only Linux but also other glibc systems
8 * such as GNU/Hurd and GNU/k*BSD.
9 */
10
11 #ifndef nspr_linux_defs_h___
12 #define nspr_linux_defs_h___
13
14 #include "prthread.h"
15
16 /*
17 * Internal configuration macros
18 */
19
20 #define PR_LINKER_ARCH "linux"
21 #define _PR_SI_SYSNAME "LINUX"
22 #ifdef __powerpc64__
23 #define _PR_SI_ARCHITECTURE "ppc64"
24 #elif defined(__powerpc__)
25 #define _PR_SI_ARCHITECTURE "ppc"
26 #elif defined(__alpha)
27 #define _PR_SI_ARCHITECTURE "alpha"
28 #elif defined(__ia64__)
29 #define _PR_SI_ARCHITECTURE "ia64"
30 #elif defined(__x86_64__)
31 #define _PR_SI_ARCHITECTURE "x86-64"
32 #elif defined(__mc68000__)
33 #define _PR_SI_ARCHITECTURE "m68k"
34 #elif defined(__sparc__) && defined(__arch64__)
35 #define _PR_SI_ARCHITECTURE "sparc64"
36 #elif defined(__sparc__)
37 #define _PR_SI_ARCHITECTURE "sparc"
38 #elif defined(__i386__)
39 #define _PR_SI_ARCHITECTURE "x86"
40 #elif defined(__mips__)
41 #define _PR_SI_ARCHITECTURE "mips"
42 #elif defined(__arm__)
43 #define _PR_SI_ARCHITECTURE "arm"
44 #elif defined(__aarch64__)
45 #define _PR_SI_ARCHITECTURE "aarch64"
46 #elif defined(__hppa__)
47 #define _PR_SI_ARCHITECTURE "hppa"
48 #elif defined(__s390x__)
49 #define _PR_SI_ARCHITECTURE "s390x"
50 #elif defined(__s390__)
51 #define _PR_SI_ARCHITECTURE "s390"
52 #elif defined(__sh__)
53 #define _PR_SI_ARCHITECTURE "sh"
54 #elif defined(__avr32__)
55 #define _PR_SI_ARCHITECTURE "avr32"
56 #elif defined(__m32r__)
57 #define _PR_SI_ARCHITECTURE "m32r"
58 #else
59 #error "Unknown CPU architecture"
60 #endif
61 #define PR_DLL_SUFFIX ".so"
62
63 #define _PR_VMBASE 0x30000000
64 #define _PR_STACK_VMBASE 0x50000000
65 #define _MD_DEFAULT_STACK_SIZE 65536L
66 #define _MD_MMAP_FLAGS MAP_PRIVATE
67
68 #if defined(__aarch64__)
69 #define _MD_MINIMUM_STACK_SIZE 0x20000
70 #endif
71
72 #undef HAVE_STACK_GROWING_UP
73
74 /*
75 * Elf linux supports dl* functions
76 */
77 #define HAVE_DLL
78 #define USE_DLFCN
79 #if defined(ANDROID)
80 #define NO_DLOPEN_NULL
81 #endif
82
83 #ifdef __FreeBSD_kernel__
84 #define _PR_HAVE_SOCKADDR_LEN
85 #endif
86
87 #if defined(__i386__)
88 #define _PR_HAVE_ATOMIC_OPS
89 #define _MD_INIT_ATOMIC()
90 extern PRInt32 _PR_x86_AtomicIncrement(PRInt32 *val);
91 #define _MD_ATOMIC_INCREMENT _PR_x86_AtomicIncrement
92 extern PRInt32 _PR_x86_AtomicDecrement(PRInt32 *val);
93 #define _MD_ATOMIC_DECREMENT _PR_x86_AtomicDecrement
94 extern PRInt32 _PR_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val);
95 #define _MD_ATOMIC_ADD _PR_x86_AtomicAdd
96 extern PRInt32 _PR_x86_AtomicSet(PRInt32 *val, PRInt32 newval);
97 #define _MD_ATOMIC_SET _PR_x86_AtomicSet
98 #endif
99
100 #if defined(__ia64__)
101 #define _PR_HAVE_ATOMIC_OPS
102 #define _MD_INIT_ATOMIC()
103 extern PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val);
104 #define _MD_ATOMIC_INCREMENT _PR_ia64_AtomicIncrement
105 extern PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val);
106 #define _MD_ATOMIC_DECREMENT _PR_ia64_AtomicDecrement
107 extern PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
108 #define _MD_ATOMIC_ADD _PR_ia64_AtomicAdd
109 extern PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval);
110 #define _MD_ATOMIC_SET _PR_ia64_AtomicSet
111 #endif
112
113 #if defined(__x86_64__)
114 #define _PR_HAVE_ATOMIC_OPS
115 #define _MD_INIT_ATOMIC()
116 extern PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val);
117 #define _MD_ATOMIC_INCREMENT _PR_x86_64_AtomicIncrement
118 extern PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val);
119 #define _MD_ATOMIC_DECREMENT _PR_x86_64_AtomicDecrement
120 extern PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
121 #define _MD_ATOMIC_ADD _PR_x86_64_AtomicAdd
122 extern PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval);
123 #define _MD_ATOMIC_SET _PR_x86_64_AtomicSet
124 #endif
125
126 #if defined(__powerpc__) && !defined(__powerpc64__)
127 #define _PR_HAVE_ATOMIC_OPS
128 #define _MD_INIT_ATOMIC()
129 extern PRInt32 _PR_ppc_AtomicIncrement(PRInt32 *val);
130 #define _MD_ATOMIC_INCREMENT _PR_ppc_AtomicIncrement
131 extern PRInt32 _PR_ppc_AtomicDecrement(PRInt32 *val);
132 #define _MD_ATOMIC_DECREMENT _PR_ppc_AtomicDecrement
133 extern PRInt32 _PR_ppc_AtomicAdd(PRInt32 *ptr, PRInt32 val);
134 #define _MD_ATOMIC_ADD _PR_ppc_AtomicAdd
135 extern PRInt32 _PR_ppc_AtomicSet(PRInt32 *val, PRInt32 newval);
136 #define _MD_ATOMIC_SET _PR_ppc_AtomicSet
137 #endif
138
139 #if defined(__alpha)
140 #define _PR_HAVE_ATOMIC_OPS
141 #define _MD_INIT_ATOMIC()
142 #define _MD_ATOMIC_ADD(ptr, i) ({ \
143 PRInt32 __atomic_tmp, __atomic_ret; \
144 __asm__ __volatile__( \
145 "1: ldl_l %[ret], %[val] \n" \
146 " addl %[ret], %[inc], %[tmp] \n" \
147 " addl %[ret], %[inc], %[ret] \n" \
148 " stl_c %[tmp], %[val] \n" \
149 " beq %[tmp], 2f \n" \
150 ".subsection 2 \n" \
151 "2: br 1b \n" \
152 ".previous" \
153 : [ret] "=&r" (__atomic_ret), \
154 [tmp] "=&r" (__atomic_tmp), \
155 [val] "=m" (*ptr) \
156 : [inc] "Ir" (i), "m" (*ptr)); \
157 __atomic_ret; \
158 })
159 #define _MD_ATOMIC_INCREMENT(ptr) _MD_ATOMIC_ADD(ptr, 1)
160 #define _MD_ATOMIC_DECREMENT(ptr) ({ \
161 PRInt32 __atomic_tmp, __atomic_ret; \
162 __asm__ __volatile__( \
163 "1: ldl_l %[ret], %[val] \n" \
164 " subl %[ret], 1, %[tmp] \n" \
165 " subl %[ret], 1, %[ret] \n" \
166 " stl_c %[tmp], %[val] \n" \
167 " beq %[tmp], 2f \n" \
168 ".subsection 2 \n" \
169 "2: br 1b \n" \
170 ".previous" \
171 : [ret] "=&r" (__atomic_ret), \
172 [tmp] "=&r" (__atomic_tmp), \
173 [val] "=m" (*ptr) \
174 : "m" (*ptr)); \
175 __atomic_ret; \
176 })
177 #define _MD_ATOMIC_SET(ptr, n) ({ \
178 PRInt32 __atomic_tmp, __atomic_ret; \
179 __asm__ __volatile__( \
180 "1: ldl_l %[ret], %[val] \n" \
181 " mov %[newval], %[tmp] \n" \
182 " stl_c %[tmp], %[val] \n" \
183 " beq %[tmp], 2f \n" \
184 ".subsection 2 \n" \
185 "2: br 1b \n" \
186 ".previous" \
187 : [ret] "=&r" (__atomic_ret), \
188 [tmp] "=&r"(__atomic_tmp), \
189 [val] "=m" (*ptr) \
190 : [newval] "Ir" (n), "m" (*ptr)); \
191 __atomic_ret; \
192 })
193 #endif
194
195 #if defined(__arm__) || defined(__aarch64__)
196 #if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
197 /* Use GCC built-in functions */
198 #define _PR_HAVE_ATOMIC_OPS
199 #define _MD_INIT_ATOMIC()
200
201 #define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
202 #define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
203 #define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
204 #define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
205
206 #elif defined(_PR_ARM_KUSER)
207 #define _PR_HAVE_ATOMIC_OPS
208 #define _MD_INIT_ATOMIC()
209
210 /*
211 * The kernel provides this helper function at a fixed address with a fixed
212 * ABI signature, directly callable from user space.
213 *
214 * Definition:
215 * Atomically store newval in *ptr if *ptr is equal to oldval.
216 * Return zero if *ptr was changed or non-zero if no exchange happened.
217 */
218 typedef int (__kernel_cmpxchg_t)(int oldval, int newval, volatile int *ptr);
219 #define __kernel_cmpxchg (*(__kernel_cmpxchg_t *)0xffff0fc0)
220
221 #define _MD_ATOMIC_INCREMENT(ptr) _MD_ATOMIC_ADD(ptr, 1)
222 #define _MD_ATOMIC_DECREMENT(ptr) _MD_ATOMIC_ADD(ptr, -1)
223
224 static inline PRInt32 _MD_ATOMIC_ADD(PRInt32 *ptr, PRInt32 n)
225 {
226 PRInt32 ov, nv;
227 volatile PRInt32 *vp = ptr;
228
229 do {
230 ov = *vp;
231 nv = ov + n;
232 } while (__kernel_cmpxchg(ov, nv, vp));
233
234 return nv;
235 }
236
237 static inline PRInt32 _MD_ATOMIC_SET(PRInt32 *ptr, PRInt32 nv)
238 {
239 PRInt32 ov;
240 volatile PRInt32 *vp = ptr;
241
242 do {
243 ov = *vp;
244 } while (__kernel_cmpxchg(ov, nv, vp));
245
246 return ov;
247 }
248 #endif
249 #endif /* __arm__ */
250
251 #define USE_SETJMP
252 #if (defined(__GLIBC__) && __GLIBC__ >= 2) || defined(ANDROID)
253 #define _PR_POLL_AVAILABLE
254 #endif
255 #undef _PR_USE_POLL
256 #define _PR_STAT_HAS_ONLY_ST_ATIME
257 #if defined(__alpha) || defined(__ia64__)
258 #define _PR_HAVE_LARGE_OFF_T
259 #elif (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \
260 || defined(ANDROID)
261 #define _PR_HAVE_OFF64_T
262 #else
263 #define _PR_NO_LARGE_FILES
264 #endif
265 #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \
266 || defined(ANDROID)
267 #define _PR_INET6
268 #define _PR_HAVE_INET_NTOP
269 #define _PR_HAVE_GETHOSTBYNAME2
270 #define _PR_HAVE_GETADDRINFO
271 #define _PR_INET6_PROBE
272 #endif
273 #ifndef ANDROID
274 #define _PR_HAVE_SYSV_SEMAPHORES
275 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
276 #endif
277 /* Android has gethostbyname_r but not gethostbyaddr_r or gethostbyname2_r. */
278 #if (__GLIBC__ >= 2) && defined(_PR_PTHREADS)
279 #define _PR_HAVE_GETHOST_R
280 #define _PR_HAVE_GETHOST_R_INT
281 #endif
282
283 #ifdef _PR_PTHREADS
284
285 extern void _MD_CleanupBeforeExit(void);
286 #define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit
287
288 #else /* ! _PR_PTHREADS */
289
290 #include <setjmp.h>
291
292 #define PR_CONTEXT_TYPE sigjmp_buf
293
294 #define CONTEXT(_th) ((_th)->md.context)
295
296 #ifdef __powerpc__
297 /*
298 * PowerPC based MkLinux
299 *
300 * On the PowerPC, the new style jmp_buf isn't used until glibc
301 * 2.1.
302 */
303 #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1)
304 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_GPR1]
305 #else
306 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__misc[0]
307 #endif /* glibc 2.1 or later */
308 #define _MD_SET_FP(_t, val)
309 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
310 #define _MD_GET_FP_PTR(_t) ((void *) 0)
311 /* aix = 64, macos = 70 */
312 #define PR_NUM_GCREGS 64
313
314 #elif defined(__alpha)
315 /* Alpha based Linux */
316
317 #if defined(__GLIBC__) && __GLIBC__ >= 2
318 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
319 #define _MD_SET_FP(_t, val)
320 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
321 #define _MD_GET_FP_PTR(_t) ((void *) 0)
322 #define _MD_SP_TYPE long int
323 #else
324 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
325 #define _MD_SET_FP(_t, val)
326 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
327 #define _MD_GET_FP_PTR(_t) ((void *) 0)
328 #define _MD_SP_TYPE __ptr_t
329 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
330
331 /* XXX not sure if this is correct, or maybe it should be 17? */
332 #define PR_NUM_GCREGS 9
333
334 #elif defined(__ia64__)
335
336 #define _MD_GET_SP(_t) ((long *)((_t)->md.context[0].__jmpbuf)[0])
337 #define _MD_SET_FP(_t, val)
338 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
339 #define _MD_GET_FP_PTR(_t) ((void *) 0)
340 #define _MD_SP_TYPE long int
341
342 #define PR_NUM_GCREGS _JBLEN
343
344 #elif defined(__mc68000__)
345 /* m68k based Linux */
346
347 /*
348 * On the m68k, glibc still uses the old style sigjmp_buf, even
349 * in glibc 2.0.7.
350 */
351 #if defined(__GLIBC__) && __GLIBC__ >= 2
352 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
353 #define _MD_SET_FP(_t, val)
354 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
355 #define _MD_GET_FP_PTR(_t) ((void *) 0)
356 #define _MD_SP_TYPE int
357 #else
358 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
359 #define _MD_SET_FP(_t, val)
360 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
361 #define _MD_GET_FP_PTR(_t) ((void *) 0)
362 #define _MD_SP_TYPE __ptr_t
363 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
364
365 /* XXX not sure if this is correct, or maybe it should be 17? */
366 #define PR_NUM_GCREGS 9
367
368 #elif defined(__sparc__)
369 /* Sparc */
370 #if defined(__GLIBC__) && __GLIBC__ >= 2
371 /*
372 * You need glibc2-2.0.7-25 or later. The libraries that came with
373 * Red Hat 5.1 are not new enough, but they are in 5.2.
374 */
375 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
376 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_FP] = val)
377 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
378 #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_FP])
379 #define _MD_SP_TYPE int
380 #else
381 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__fp
382 #define _MD_SET_FP(_t, val)
383 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
384 #define _MD_GET_FP_PTR(_t) ((void *) 0)
385 #define _MD_SP_TYPE __ptr_t
386 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
387
388 #elif defined(__i386__)
389 /* Intel based Linux */
390 #if defined(__GLIBC__) && __GLIBC__ >= 2
391 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
392 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_BP] = val)
393 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
394 #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_BP])
395 #define _MD_SP_TYPE int
396 #else
397 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
398 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__bp = val)
399 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
400 #define _MD_GET_FP_PTR(_t) &((_t)->md.context[0].__jmpbuf[0].__bp)
401 #define _MD_SP_TYPE __ptr_t
402 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
403 #define PR_NUM_GCREGS 6
404
405 #elif defined(__mips__)
406 /* Linux/MIPS */
407 #if defined(__GLIBC__) && __GLIBC__ >= 2
408 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
409 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__fp = (val))
410 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
411 #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__fp)
412 #define _MD_SP_TYPE __ptr_t
413 #else
414 #error "Linux/MIPS pre-glibc2 not supported yet"
415 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
416
417 #elif defined(__arm__)
418 /* ARM/Linux */
419 #if defined(__GLIBC__) && __GLIBC__ >= 2
420 #ifdef __ARM_EABI__
421 /* EABI */
422 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[8]
423 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[7] = (val))
424 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
425 #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[7])
426 #define _MD_SP_TYPE __ptr_t
427 #else /* __ARM_EABI__ */
428 /* old ABI */
429 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[20]
430 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[19] = (val))
431 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
432 #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[19])
433 #define _MD_SP_TYPE __ptr_t
434 #endif /* __ARM_EABI__ */
435 #else
436 #error "ARM/Linux pre-glibc2 not supported yet"
437 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
438
439 #elif defined(__sh__)
440 /* SH/Linux */
441 #if defined(__GLIBC__) && __GLIBC__ >= 2
442 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[7]
443 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[6] = (val))
444 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
445 #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[6])
446 #define _MD_SP_TYPE __ptr_t
447 #else
448 #error "SH/Linux pre-glibc2 not supported yet"
449 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
450
451 #elif defined(__m32r__)
452 /* Linux/M32R */
453 #if defined(__GLIBC__) && __GLIBC__ >= 2
454 #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__regs[JB_SP]
455 #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__regs[JB_FP] = (val))
456 #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
457 #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__regs[JB_FP])
458 #define _MD_SP_TYPE __ptr_t
459 #else
460 #error "Linux/M32R pre-glibc2 not supported yet"
461 #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
462
463 #else
464
465 #error "Unknown CPU architecture"
466
467 #endif /*__powerpc__*/
468
469 /*
470 ** Initialize a thread context to run "_main()" when started
471 */
472 #ifdef __powerpc__
473
474 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
475 { \
476 *status = PR_TRUE; \
477 if (sigsetjmp(CONTEXT(_thread), 1)) { \
478 _main(); \
479 } \
480 _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 128); \
481 _thread->md.sp = _MD_GET_SP_PTR(_thread); \
482 _thread->md.fp = _MD_GET_FP_PTR(_thread); \
483 _MD_SET_FP(_thread, 0); \
484 }
485
486 #elif defined(__mips__)
487
488 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
489 { \
490 *status = PR_TRUE; \
491 (void) sigsetjmp(CONTEXT(_thread), 1); \
492 _thread->md.context[0].__jmpbuf[0].__pc = (__ptr_t) _main; \
493 _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \
494 _thread->md.sp = _MD_GET_SP_PTR(_thread); \
495 _thread->md.fp = _MD_GET_FP_PTR(_thread); \
496 _MD_SET_FP(_thread, 0); \
497 }
498
499 #else
500
501 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
502 { \
503 *status = PR_TRUE; \
504 if (sigsetjmp(CONTEXT(_thread), 1)) { \
505 _main(); \
506 } \
507 _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \
508 _thread->md.sp = _MD_GET_SP_PTR(_thread); \
509 _thread->md.fp = _MD_GET_FP_PTR(_thread); \
510 _MD_SET_FP(_thread, 0); \
511 }
512
513 #endif /*__powerpc__*/
514
515 #define _MD_SWITCH_CONTEXT(_thread) \
516 if (!sigsetjmp(CONTEXT(_thread), 1)) { \
517 (_thread)->md.errcode = errno; \
518 _PR_Schedule(); \
519 }
520
521 /*
522 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
523 */
524 #define _MD_RESTORE_CONTEXT(_thread) \
525 { \
526 errno = (_thread)->md.errcode; \
527 _MD_SET_CURRENT_THREAD(_thread); \
528 siglongjmp(CONTEXT(_thread), 1); \
529 }
530
531 /* Machine-dependent (MD) data structures */
532
533 struct _MDThread {
534 PR_CONTEXT_TYPE context;
535 void *sp;
536 void *fp;
537 int id;
538 int errcode;
539 };
540
541 struct _MDThreadStack {
542 PRInt8 notused;
543 };
544
545 struct _MDLock {
546 PRInt8 notused;
547 };
548
549 struct _MDSemaphore {
550 PRInt8 notused;
551 };
552
553 struct _MDCVar {
554 PRInt8 notused;
555 };
556
557 struct _MDSegment {
558 PRInt8 notused;
559 };
560
561 /*
562 * md-specific cpu structure field
563 */
564 #include <sys/time.h> /* for FD_SETSIZE */
565 #define _PR_MD_MAX_OSFD FD_SETSIZE
566
567 struct _MDCPU_Unix {
568 PRCList ioQ;
569 PRUint32 ioq_timeout;
570 PRInt32 ioq_max_osfd;
571 PRInt32 ioq_osfd_cnt;
572 #ifndef _PR_USE_POLL
573 fd_set fd_read_set, fd_write_set, fd_exception_set;
574 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
575 fd_exception_cnt[_PR_MD_MAX_OSFD];
576 #else
577 struct pollfd *ioq_pollfds;
578 int ioq_pollfds_size;
579 #endif /* _PR_USE_POLL */
580 };
581
582 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
583 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
584 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
585 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
586 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
587 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
588 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
589 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
590 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
591 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
592 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
593 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
594 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
595
596 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
597
598 struct _MDCPU {
599 struct _MDCPU_Unix md_unix;
600 };
601
602 #define _MD_INIT_LOCKS()
603 #define _MD_NEW_LOCK(lock) PR_SUCCESS
604 #define _MD_FREE_LOCK(lock)
605 #define _MD_LOCK(lock)
606 #define _MD_UNLOCK(lock)
607 #define _MD_INIT_IO()
608 #define _MD_IOQ_LOCK()
609 #define _MD_IOQ_UNLOCK()
610
611 extern PRStatus _MD_InitializeThread(PRThread *thread);
612
613 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
614 #define _MD_INIT_THREAD _MD_InitializeThread
615 #define _MD_EXIT_THREAD(thread)
616 #define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread
617 #define _MD_RESUME_THREAD(thread) _MD_resume_thread
618 #define _MD_CLEAN_THREAD(_thread)
619
620 extern PRStatus _MD_CREATE_THREAD(
621 PRThread *thread,
622 void (*start) (void *),
623 PRThreadPriority priority,
624 PRThreadScope scope,
625 PRThreadState state,
626 PRUint32 stackSize);
627 extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
628 extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
629 extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
630 extern void _MD_YIELD(void);
631
632 #endif /* ! _PR_PTHREADS */
633
634 extern void _MD_EarlyInit(void);
635
636 #define _MD_EARLY_INIT _MD_EarlyInit
637 #define _MD_FINAL_INIT _PR_UnixInit
638 #define HAVE_CLOCK_MONOTONIC
639
640 /*
641 * We wrapped the select() call. _MD_SELECT refers to the built-in,
642 * unwrapped version.
643 */
644 #define _MD_SELECT __select
645
646 #ifdef _PR_POLL_AVAILABLE
647 #include <sys/poll.h>
648 extern int __syscall_poll(struct pollfd *ufds, unsigned long int nfds,
649 int timeout);
650 #define _MD_POLL __syscall_poll
651 #endif
652
653 /* For writev() */
654 #include <sys/uio.h>
655
656 extern void _MD_linux_map_sendfile_error(int err);
657
658 #endif /* nspr_linux_defs_h___ */
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