Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
4349 | Serge | 1 | /* This header file provides the reentrancy. */ |
2 | |||
3 | /* WARNING: All identifiers here must begin with an underscore. This file is |
||
4 | included by stdio.h and others and we therefore must only use identifiers |
||
5 | in the namespace allotted to us. */ |
||
6 | |||
7 | #ifndef _SYS_REENT_H_ |
||
8 | #ifdef __cplusplus |
||
9 | extern "C" { |
||
10 | #endif |
||
11 | #define _SYS_REENT_H_ |
||
12 | |||
13 | #include <_ansi.h> |
||
14 | #include |
||
15 | |||
16 | #define _NULL 0 |
||
17 | |||
18 | #ifndef __Long |
||
19 | #if __LONG_MAX__ == 2147483647L |
||
20 | #define __Long long |
||
21 | typedef unsigned __Long __ULong; |
||
22 | #elif __INT_MAX__ == 2147483647 |
||
23 | #define __Long int |
||
24 | typedef unsigned __Long __ULong; |
||
25 | #endif |
||
26 | #endif |
||
27 | |||
28 | #if !defined( __Long) |
||
29 | #include |
||
30 | #endif |
||
31 | |||
32 | #ifndef __Long |
||
33 | #define __Long __int32_t |
||
34 | typedef __uint32_t __ULong; |
||
35 | #endif |
||
36 | |||
37 | struct _reent; |
||
38 | |||
39 | /* |
||
40 | * If _REENT_SMALL is defined, we make struct _reent as small as possible, |
||
41 | * by having nearly everything possible allocated at first use. |
||
42 | */ |
||
43 | |||
44 | struct _Bigint |
||
45 | { |
||
46 | struct _Bigint *_next; |
||
47 | int _k, _maxwds, _sign, _wds; |
||
48 | __ULong _x[1]; |
||
49 | }; |
||
50 | |||
51 | /* needed by reentrant structure */ |
||
52 | struct __tm |
||
53 | { |
||
54 | int __tm_sec; |
||
55 | int __tm_min; |
||
56 | int __tm_hour; |
||
57 | int __tm_mday; |
||
58 | int __tm_mon; |
||
59 | int __tm_year; |
||
60 | int __tm_wday; |
||
61 | int __tm_yday; |
||
62 | int __tm_isdst; |
||
63 | }; |
||
64 | |||
65 | /* |
||
66 | * atexit() support. |
||
67 | */ |
||
68 | |||
69 | #define _ATEXIT_SIZE 32 /* must be at least 32 to guarantee ANSI conformance */ |
||
70 | |||
71 | struct _on_exit_args { |
||
72 | void * _fnargs[_ATEXIT_SIZE]; /* user fn args */ |
||
73 | void * _dso_handle[_ATEXIT_SIZE]; |
||
74 | /* Bitmask is set if user function takes arguments. */ |
||
75 | __ULong _fntypes; /* type of exit routine - |
||
76 | Must have at least _ATEXIT_SIZE bits */ |
||
77 | /* Bitmask is set if function was registered via __cxa_atexit. */ |
||
78 | __ULong _is_cxa; |
||
79 | }; |
||
80 | |||
81 | #ifdef _REENT_SMALL |
||
82 | struct _atexit { |
||
83 | struct _atexit *_next; /* next in list */ |
||
84 | int _ind; /* next index in this table */ |
||
85 | void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ |
||
86 | struct _on_exit_args * _on_exit_args_ptr; |
||
87 | }; |
||
88 | #else |
||
89 | struct _atexit { |
||
90 | struct _atexit *_next; /* next in list */ |
||
91 | int _ind; /* next index in this table */ |
||
92 | /* Some entries may already have been called, and will be NULL. */ |
||
93 | void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ |
||
94 | struct _on_exit_args _on_exit_args; |
||
95 | }; |
||
96 | #endif |
||
97 | |||
98 | /* |
||
99 | * Stdio buffers. |
||
100 | * |
||
101 | * This and __FILE are defined here because we need them for struct _reent, |
||
102 | * but we don't want stdio.h included when stdlib.h is. |
||
103 | */ |
||
104 | |||
105 | struct __sbuf { |
||
106 | unsigned char *_base; |
||
107 | int _size; |
||
108 | }; |
||
109 | |||
110 | /* |
||
111 | * Stdio state variables. |
||
112 | * |
||
113 | * The following always hold: |
||
114 | * |
||
115 | * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), |
||
116 | * _lbfsize is -_bf._size, else _lbfsize is 0 |
||
117 | * if _flags&__SRD, _w is 0 |
||
118 | * if _flags&__SWR, _r is 0 |
||
119 | * |
||
120 | * This ensures that the getc and putc macros (or inline functions) never |
||
121 | * try to write or read from a file that is in `read' or `write' mode. |
||
122 | * (Moreover, they can, and do, automatically switch from read mode to |
||
123 | * write mode, and back, on "r+" and "w+" files.) |
||
124 | * |
||
125 | * _lbfsize is used only to make the inline line-buffered output stream |
||
126 | * code as compact as possible. |
||
127 | * |
||
128 | * _ub, _up, and _ur are used when ungetc() pushes back more characters |
||
129 | * than fit in the current _bf, or when ungetc() pushes back a character |
||
130 | * that does not match the previous one in _bf. When this happens, |
||
131 | * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff |
||
132 | * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. |
||
133 | */ |
||
134 | |||
135 | #ifdef _REENT_SMALL |
||
136 | /* |
||
137 | * struct __sFILE_fake is the start of a struct __sFILE, with only the |
||
138 | * minimal fields allocated. In __sinit() we really allocate the 3 |
||
139 | * standard streams, etc., and point away from this fake. |
||
140 | */ |
||
141 | struct __sFILE_fake { |
||
142 | unsigned char *_p; /* current position in (some) buffer */ |
||
143 | int _r; /* read space left for getc() */ |
||
144 | int _w; /* write space left for putc() */ |
||
145 | short _flags; /* flags, below; this FILE is free if 0 */ |
||
146 | short _file; /* fileno, if Unix descriptor, else -1 */ |
||
147 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ |
||
148 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ |
||
149 | |||
150 | struct _reent *_data; |
||
151 | }; |
||
152 | |||
153 | /* Following is needed both in libc/stdio and libc/stdlib so we put it |
||
154 | * here instead of libc/stdio/local.h where it was previously. */ |
||
155 | |||
156 | extern _VOID _EXFUN(__sinit,(struct _reent *)); |
||
157 | |||
158 | # define _REENT_SMALL_CHECK_INIT(ptr) \ |
||
159 | do \ |
||
160 | { \ |
||
161 | if ((ptr) && !(ptr)->__sdidinit) \ |
||
162 | __sinit (ptr); \ |
||
163 | } \ |
||
164 | while (0) |
||
165 | #else |
||
166 | # define _REENT_SMALL_CHECK_INIT(ptr) /* nothing */ |
||
167 | #endif |
||
168 | |||
169 | struct __sFILE { |
||
170 | unsigned char *_p; /* current position in (some) buffer */ |
||
171 | int _r; /* read space left for getc() */ |
||
172 | int _w; /* write space left for putc() */ |
||
173 | short _flags; /* flags, below; this FILE is free if 0 */ |
||
174 | short _file; /* fileno, if Unix descriptor, else -1 */ |
||
175 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ |
||
176 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ |
||
177 | |||
178 | #ifdef _REENT_SMALL |
||
179 | struct _reent *_data; |
||
180 | #endif |
||
181 | |||
182 | /* operations */ |
||
183 | _PTR _cookie; /* cookie passed to io functions */ |
||
184 | |||
185 | _READ_WRITE_RETURN_TYPE _EXFNPTR(_read, (struct _reent *, _PTR, |
||
186 | char *, int)); |
||
187 | _READ_WRITE_RETURN_TYPE _EXFNPTR(_write, (struct _reent *, _PTR, |
||
188 | const char *, int)); |
||
189 | _fpos_t _EXFNPTR(_seek, (struct _reent *, _PTR, _fpos_t, int)); |
||
190 | int _EXFNPTR(_close, (struct _reent *, _PTR)); |
||
191 | |||
192 | /* separate buffer for long sequences of ungetc() */ |
||
193 | struct __sbuf _ub; /* ungetc buffer */ |
||
194 | unsigned char *_up; /* saved _p when _p is doing ungetc data */ |
||
195 | int _ur; /* saved _r when _r is counting ungetc data */ |
||
196 | |||
197 | /* tricks to meet minimum requirements even when malloc() fails */ |
||
198 | unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ |
||
199 | unsigned char _nbuf[1]; /* guarantee a getc() buffer */ |
||
200 | |||
201 | /* separate buffer for fgetline() when line crosses buffer boundary */ |
||
202 | struct __sbuf _lb; /* buffer for fgetline() */ |
||
203 | |||
204 | /* Unix stdio files get aligned to block boundaries on fseek() */ |
||
205 | int _blksize; /* stat.st_blksize (may be != _bf._size) */ |
||
206 | int _offset; /* current lseek offset */ |
||
207 | |||
208 | #ifndef _REENT_SMALL |
||
209 | struct _reent *_data; /* Here for binary compatibility? Remove? */ |
||
210 | #endif |
||
211 | |||
212 | #ifndef __SINGLE_THREAD__ |
||
213 | _flock_t _lock; /* for thread-safety locking */ |
||
214 | #endif |
||
215 | _mbstate_t _mbstate; /* for wide char stdio functions. */ |
||
216 | int _flags2; /* for future use */ |
||
217 | }; |
||
218 | |||
219 | #ifdef __CUSTOM_FILE_IO__ |
||
220 | |||
221 | /* Get custom _FILE definition. */ |
||
222 | #include |
||
223 | |||
224 | #else /* !__CUSTOM_FILE_IO__ */ |
||
225 | #ifdef __LARGE64_FILES |
||
226 | struct __sFILE64 { |
||
227 | unsigned char *_p; /* current position in (some) buffer */ |
||
228 | int _r; /* read space left for getc() */ |
||
229 | int _w; /* write space left for putc() */ |
||
230 | short _flags; /* flags, below; this FILE is free if 0 */ |
||
231 | short _file; /* fileno, if Unix descriptor, else -1 */ |
||
232 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ |
||
233 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ |
||
234 | |||
235 | struct _reent *_data; |
||
236 | |||
237 | /* operations */ |
||
238 | _PTR _cookie; /* cookie passed to io functions */ |
||
239 | |||
240 | _READ_WRITE_RETURN_TYPE _EXFNPTR(_read, (struct _reent *, _PTR, |
||
241 | char *, int)); |
||
242 | _READ_WRITE_RETURN_TYPE _EXFNPTR(_write, (struct _reent *, _PTR, |
||
243 | const char *, int)); |
||
244 | _fpos_t _EXFNPTR(_seek, (struct _reent *, _PTR, _fpos_t, int)); |
||
245 | int _EXFNPTR(_close, (struct _reent *, _PTR)); |
||
246 | |||
247 | /* separate buffer for long sequences of ungetc() */ |
||
248 | struct __sbuf _ub; /* ungetc buffer */ |
||
249 | unsigned char *_up; /* saved _p when _p is doing ungetc data */ |
||
250 | int _ur; /* saved _r when _r is counting ungetc data */ |
||
251 | |||
252 | /* tricks to meet minimum requirements even when malloc() fails */ |
||
253 | unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ |
||
254 | unsigned char _nbuf[1]; /* guarantee a getc() buffer */ |
||
255 | |||
256 | /* separate buffer for fgetline() when line crosses buffer boundary */ |
||
257 | struct __sbuf _lb; /* buffer for fgetline() */ |
||
258 | |||
259 | /* Unix stdio files get aligned to block boundaries on fseek() */ |
||
260 | int _blksize; /* stat.st_blksize (may be != _bf._size) */ |
||
261 | int _flags2; /* for future use */ |
||
262 | |||
263 | _off64_t _offset; /* current lseek offset */ |
||
264 | _fpos64_t _EXFNPTR(_seek64, (struct _reent *, _PTR, _fpos64_t, int)); |
||
265 | |||
266 | #ifndef __SINGLE_THREAD__ |
||
267 | _flock_t _lock; /* for thread-safety locking */ |
||
268 | #endif |
||
269 | _mbstate_t _mbstate; /* for wide char stdio functions. */ |
||
270 | }; |
||
271 | typedef struct __sFILE64 __FILE; |
||
272 | #else |
||
273 | typedef struct __sFILE __FILE; |
||
274 | #endif /* __LARGE64_FILES */ |
||
275 | #endif /* !__CUSTOM_FILE_IO__ */ |
||
276 | |||
277 | struct _glue |
||
278 | { |
||
279 | struct _glue *_next; |
||
280 | int _niobs; |
||
281 | __FILE *_iobs; |
||
282 | }; |
||
283 | |||
284 | /* |
||
285 | * rand48 family support |
||
286 | * |
||
287 | * Copyright (c) 1993 Martin Birgmeier |
||
288 | * All rights reserved. |
||
289 | * |
||
290 | * You may redistribute unmodified or modified versions of this source |
||
291 | * code provided that the above copyright notice and this and the |
||
292 | * following conditions are retained. |
||
293 | * |
||
294 | * This software is provided ``as is'', and comes with no warranties |
||
295 | * of any kind. I shall in no event be liable for anything that happens |
||
296 | * to anyone/anything when using this software. |
||
297 | */ |
||
298 | #define _RAND48_SEED_0 (0x330e) |
||
299 | #define _RAND48_SEED_1 (0xabcd) |
||
300 | #define _RAND48_SEED_2 (0x1234) |
||
301 | #define _RAND48_MULT_0 (0xe66d) |
||
302 | #define _RAND48_MULT_1 (0xdeec) |
||
303 | #define _RAND48_MULT_2 (0x0005) |
||
304 | #define _RAND48_ADD (0x000b) |
||
305 | struct _rand48 { |
||
306 | unsigned short _seed[3]; |
||
307 | unsigned short _mult[3]; |
||
308 | unsigned short _add; |
||
309 | #ifdef _REENT_SMALL |
||
310 | /* Put this in here as well, for good luck. */ |
||
311 | __extension__ unsigned long long _rand_next; |
||
312 | #endif |
||
313 | }; |
||
314 | |||
315 | /* How big the some arrays are. */ |
||
316 | #define _REENT_EMERGENCY_SIZE 25 |
||
317 | #define _REENT_ASCTIME_SIZE 26 |
||
318 | #define _REENT_SIGNAL_SIZE 24 |
||
319 | |||
320 | /* |
||
321 | * struct _reent |
||
322 | * |
||
323 | * This structure contains *all* globals needed by the library. |
||
324 | * It's raison d'etre is to facilitate threads by making all library routines |
||
325 | * reentrant. IE: All state information is contained here. |
||
326 | */ |
||
327 | |||
328 | #ifdef _REENT_SMALL |
||
329 | |||
330 | struct _mprec |
||
331 | { |
||
332 | /* used by mprec routines */ |
||
333 | struct _Bigint *_result; |
||
334 | int _result_k; |
||
335 | struct _Bigint *_p5s; |
||
336 | struct _Bigint **_freelist; |
||
337 | }; |
||
338 | |||
339 | |||
340 | struct _misc_reent |
||
341 | { |
||
342 | /* miscellaneous reentrant data */ |
||
343 | char *_strtok_last; |
||
344 | _mbstate_t _mblen_state; |
||
345 | _mbstate_t _wctomb_state; |
||
346 | _mbstate_t _mbtowc_state; |
||
347 | char _l64a_buf[8]; |
||
348 | int _getdate_err; |
||
349 | _mbstate_t _mbrlen_state; |
||
350 | _mbstate_t _mbrtowc_state; |
||
351 | _mbstate_t _mbsrtowcs_state; |
||
352 | _mbstate_t _wcrtomb_state; |
||
353 | _mbstate_t _wcsrtombs_state; |
||
354 | }; |
||
355 | |||
356 | /* This version of _reent is layed our with "int"s in pairs, to help |
||
357 | * ports with 16-bit int's but 32-bit pointers, align nicely. */ |
||
358 | struct _reent |
||
359 | { |
||
360 | /* As an exception to the above put _errno first for binary |
||
361 | compatibility with non _REENT_SMALL targets. */ |
||
362 | int _errno; /* local copy of errno */ |
||
363 | |||
364 | /* FILE is a big struct and may change over time. To try to achieve binary |
||
365 | compatibility with future versions, put stdin,stdout,stderr here. |
||
366 | These are pointers into member __sf defined below. */ |
||
367 | __FILE *_stdin, *_stdout, *_stderr; /* XXX */ |
||
368 | |||
369 | int _inc; /* used by tmpnam */ |
||
370 | |||
371 | char *_emergency; |
||
372 | |||
373 | int __sdidinit; /* 1 means stdio has been init'd */ |
||
374 | |||
375 | int _current_category; /* unused */ |
||
376 | _CONST char *_current_locale; /* unused */ |
||
377 | |||
378 | struct _mprec *_mp; |
||
379 | |||
380 | void _EXFNPTR(__cleanup, (struct _reent *)); |
||
381 | |||
382 | int _gamma_signgam; |
||
383 | |||
384 | /* used by some fp conversion routines */ |
||
385 | int _cvtlen; /* should be size_t */ |
||
386 | char *_cvtbuf; |
||
387 | |||
388 | struct _rand48 *_r48; |
||
389 | struct __tm *_localtime_buf; |
||
390 | char *_asctime_buf; |
||
391 | |||
392 | /* signal info */ |
||
393 | void (**(_sig_func))(int); |
||
394 | |||
395 | /* atexit stuff */ |
||
396 | struct _atexit *_atexit; |
||
397 | struct _atexit _atexit0; |
||
398 | |||
399 | struct _glue __sglue; /* root of glue chain */ |
||
400 | __FILE *__sf; /* file descriptors */ |
||
401 | struct _misc_reent *_misc; /* strtok, multibyte states */ |
||
402 | char *_signal_buf; /* strsignal */ |
||
403 | }; |
||
404 | |||
405 | extern const struct __sFILE_fake __sf_fake_stdin; |
||
406 | extern const struct __sFILE_fake __sf_fake_stdout; |
||
407 | extern const struct __sFILE_fake __sf_fake_stderr; |
||
408 | |||
409 | # define _REENT_INIT(var) \ |
||
410 | { 0, \ |
||
411 | (__FILE *)&__sf_fake_stdin, \ |
||
412 | (__FILE *)&__sf_fake_stdout, \ |
||
413 | (__FILE *)&__sf_fake_stderr, \ |
||
414 | 0, \ |
||
415 | _NULL, \ |
||
416 | 0, \ |
||
417 | 0, \ |
||
418 | "C", \ |
||
419 | _NULL, \ |
||
420 | _NULL, \ |
||
421 | 0, \ |
||
422 | 0, \ |
||
423 | _NULL, \ |
||
424 | _NULL, \ |
||
425 | _NULL, \ |
||
426 | _NULL, \ |
||
427 | _NULL, \ |
||
428 | _NULL, \ |
||
429 | {_NULL, 0, {_NULL}, _NULL}, \ |
||
430 | {_NULL, 0, _NULL}, \ |
||
431 | _NULL, \ |
||
432 | _NULL, \ |
||
433 | _NULL \ |
||
434 | } |
||
435 | |||
436 | #define _REENT_INIT_PTR(var) \ |
||
437 | { (var)->_stdin = (__FILE *)&__sf_fake_stdin; \ |
||
438 | (var)->_stdout = (__FILE *)&__sf_fake_stdout; \ |
||
439 | (var)->_stderr = (__FILE *)&__sf_fake_stderr; \ |
||
440 | (var)->_errno = 0; \ |
||
441 | (var)->_inc = 0; \ |
||
442 | (var)->_emergency = _NULL; \ |
||
443 | (var)->__sdidinit = 0; \ |
||
444 | (var)->_current_category = 0; \ |
||
445 | (var)->_current_locale = "C"; \ |
||
446 | (var)->_mp = _NULL; \ |
||
447 | (var)->__cleanup = _NULL; \ |
||
448 | (var)->_gamma_signgam = 0; \ |
||
449 | (var)->_cvtlen = 0; \ |
||
450 | (var)->_cvtbuf = _NULL; \ |
||
451 | (var)->_r48 = _NULL; \ |
||
452 | (var)->_localtime_buf = _NULL; \ |
||
453 | (var)->_asctime_buf = _NULL; \ |
||
454 | (var)->_sig_func = _NULL; \ |
||
455 | (var)->_atexit = _NULL; \ |
||
456 | (var)->_atexit0._next = _NULL; \ |
||
457 | (var)->_atexit0._ind = 0; \ |
||
458 | (var)->_atexit0._fns[0] = _NULL; \ |
||
459 | (var)->_atexit0._on_exit_args_ptr = _NULL; \ |
||
460 | (var)->__sglue._next = _NULL; \ |
||
461 | (var)->__sglue._niobs = 0; \ |
||
462 | (var)->__sglue._iobs = _NULL; \ |
||
463 | (var)->__sf = 0; \ |
||
464 | (var)->_misc = _NULL; \ |
||
465 | (var)->_signal_buf = _NULL; \ |
||
466 | } |
||
467 | |||
468 | /* Only built the assert() calls if we are built with debugging. */ |
||
469 | #if DEBUG |
||
470 | #include |
||
471 | #define __reent_assert(x) assert(x) |
||
472 | #else |
||
473 | #define __reent_assert(x) ((void)0) |
||
474 | #endif |
||
475 | |||
476 | #ifdef __CUSTOM_FILE_IO__ |
||
477 | #error Custom FILE I/O and _REENT_SMALL not currently supported. |
||
478 | #endif |
||
479 | |||
480 | /* Generic _REENT check macro. */ |
||
481 | #define _REENT_CHECK(var, what, type, size, init) do { \ |
||
482 | struct _reent *_r = (var); \ |
||
483 | if (_r->what == NULL) { \ |
||
484 | _r->what = (type)malloc(size); \ |
||
485 | __reent_assert(_r->what); \ |
||
486 | init; \ |
||
487 | } \ |
||
488 | } while (0) |
||
489 | |||
490 | #define _REENT_CHECK_TM(var) \ |
||
491 | _REENT_CHECK(var, _localtime_buf, struct __tm *, sizeof *((var)->_localtime_buf), \ |
||
492 | /* nothing */) |
||
493 | |||
494 | #define _REENT_CHECK_ASCTIME_BUF(var) \ |
||
495 | _REENT_CHECK(var, _asctime_buf, char *, _REENT_ASCTIME_SIZE, \ |
||
496 | memset((var)->_asctime_buf, 0, _REENT_ASCTIME_SIZE)) |
||
497 | |||
498 | /* Handle the dynamically allocated rand48 structure. */ |
||
499 | #define _REENT_INIT_RAND48(var) do { \ |
||
500 | struct _reent *_r = (var); \ |
||
501 | _r->_r48->_seed[0] = _RAND48_SEED_0; \ |
||
502 | _r->_r48->_seed[1] = _RAND48_SEED_1; \ |
||
503 | _r->_r48->_seed[2] = _RAND48_SEED_2; \ |
||
504 | _r->_r48->_mult[0] = _RAND48_MULT_0; \ |
||
505 | _r->_r48->_mult[1] = _RAND48_MULT_1; \ |
||
506 | _r->_r48->_mult[2] = _RAND48_MULT_2; \ |
||
507 | _r->_r48->_add = _RAND48_ADD; \ |
||
508 | _r->_r48->_rand_next = 1; \ |
||
509 | } while (0) |
||
510 | #define _REENT_CHECK_RAND48(var) \ |
||
511 | _REENT_CHECK(var, _r48, struct _rand48 *, sizeof *((var)->_r48), _REENT_INIT_RAND48((var))) |
||
512 | |||
513 | #define _REENT_INIT_MP(var) do { \ |
||
514 | struct _reent *_r = (var); \ |
||
515 | _r->_mp->_result_k = 0; \ |
||
516 | _r->_mp->_result = _r->_mp->_p5s = _NULL; \ |
||
517 | _r->_mp->_freelist = _NULL; \ |
||
518 | } while (0) |
||
519 | #define _REENT_CHECK_MP(var) \ |
||
520 | _REENT_CHECK(var, _mp, struct _mprec *, sizeof *((var)->_mp), _REENT_INIT_MP(var)) |
||
521 | |||
522 | #define _REENT_CHECK_EMERGENCY(var) \ |
||
523 | _REENT_CHECK(var, _emergency, char *, _REENT_EMERGENCY_SIZE, /* nothing */) |
||
524 | |||
525 | #define _REENT_INIT_MISC(var) do { \ |
||
526 | struct _reent *_r = (var); \ |
||
527 | _r->_misc->_strtok_last = _NULL; \ |
||
528 | _r->_misc->_mblen_state.__count = 0; \ |
||
529 | _r->_misc->_mblen_state.__value.__wch = 0; \ |
||
530 | _r->_misc->_wctomb_state.__count = 0; \ |
||
531 | _r->_misc->_wctomb_state.__value.__wch = 0; \ |
||
532 | _r->_misc->_mbtowc_state.__count = 0; \ |
||
533 | _r->_misc->_mbtowc_state.__value.__wch = 0; \ |
||
534 | _r->_misc->_mbrlen_state.__count = 0; \ |
||
535 | _r->_misc->_mbrlen_state.__value.__wch = 0; \ |
||
536 | _r->_misc->_mbrtowc_state.__count = 0; \ |
||
537 | _r->_misc->_mbrtowc_state.__value.__wch = 0; \ |
||
538 | _r->_misc->_mbsrtowcs_state.__count = 0; \ |
||
539 | _r->_misc->_mbsrtowcs_state.__value.__wch = 0; \ |
||
540 | _r->_misc->_wcrtomb_state.__count = 0; \ |
||
541 | _r->_misc->_wcrtomb_state.__value.__wch = 0; \ |
||
542 | _r->_misc->_wcsrtombs_state.__count = 0; \ |
||
543 | _r->_misc->_wcsrtombs_state.__value.__wch = 0; \ |
||
544 | _r->_misc->_l64a_buf[0] = '\0'; \ |
||
545 | _r->_misc->_getdate_err = 0; \ |
||
546 | } while (0) |
||
547 | #define _REENT_CHECK_MISC(var) \ |
||
548 | _REENT_CHECK(var, _misc, struct _misc_reent *, sizeof *((var)->_misc), _REENT_INIT_MISC(var)) |
||
549 | |||
550 | #define _REENT_CHECK_SIGNAL_BUF(var) \ |
||
551 | _REENT_CHECK(var, _signal_buf, char *, _REENT_SIGNAL_SIZE, /* nothing */) |
||
552 | |||
553 | #define _REENT_SIGNGAM(ptr) ((ptr)->_gamma_signgam) |
||
554 | #define _REENT_RAND_NEXT(ptr) ((ptr)->_r48->_rand_next) |
||
555 | #define _REENT_RAND48_SEED(ptr) ((ptr)->_r48->_seed) |
||
556 | #define _REENT_RAND48_MULT(ptr) ((ptr)->_r48->_mult) |
||
557 | #define _REENT_RAND48_ADD(ptr) ((ptr)->_r48->_add) |
||
558 | #define _REENT_MP_RESULT(ptr) ((ptr)->_mp->_result) |
||
559 | #define _REENT_MP_RESULT_K(ptr) ((ptr)->_mp->_result_k) |
||
560 | #define _REENT_MP_P5S(ptr) ((ptr)->_mp->_p5s) |
||
561 | #define _REENT_MP_FREELIST(ptr) ((ptr)->_mp->_freelist) |
||
562 | #define _REENT_ASCTIME_BUF(ptr) ((ptr)->_asctime_buf) |
||
563 | #define _REENT_TM(ptr) ((ptr)->_localtime_buf) |
||
564 | #define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) |
||
565 | #define _REENT_STRTOK_LAST(ptr) ((ptr)->_misc->_strtok_last) |
||
566 | #define _REENT_MBLEN_STATE(ptr) ((ptr)->_misc->_mblen_state) |
||
567 | #define _REENT_MBTOWC_STATE(ptr)((ptr)->_misc->_mbtowc_state) |
||
568 | #define _REENT_WCTOMB_STATE(ptr)((ptr)->_misc->_wctomb_state) |
||
569 | #define _REENT_MBRLEN_STATE(ptr) ((ptr)->_misc->_mbrlen_state) |
||
570 | #define _REENT_MBRTOWC_STATE(ptr) ((ptr)->_misc->_mbrtowc_state) |
||
571 | #define _REENT_MBSRTOWCS_STATE(ptr) ((ptr)->_misc->_mbsrtowcs_state) |
||
572 | #define _REENT_WCRTOMB_STATE(ptr) ((ptr)->_misc->_wcrtomb_state) |
||
573 | #define _REENT_WCSRTOMBS_STATE(ptr) ((ptr)->_misc->_wcsrtombs_state) |
||
574 | #define _REENT_L64A_BUF(ptr) ((ptr)->_misc->_l64a_buf) |
||
575 | #define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_misc->_getdate_err)) |
||
576 | #define _REENT_SIGNAL_BUF(ptr) ((ptr)->_signal_buf) |
||
577 | |||
578 | #else /* !_REENT_SMALL */ |
||
579 | |||
580 | struct _reent |
||
581 | { |
||
582 | int _errno; /* local copy of errno */ |
||
583 | |||
584 | /* FILE is a big struct and may change over time. To try to achieve binary |
||
585 | compatibility with future versions, put stdin,stdout,stderr here. |
||
586 | These are pointers into member __sf defined below. */ |
||
587 | __FILE *_stdin, *_stdout, *_stderr; |
||
588 | |||
589 | int _inc; /* used by tmpnam */ |
||
590 | char _emergency[_REENT_EMERGENCY_SIZE]; |
||
591 | |||
592 | int _current_category; /* used by setlocale */ |
||
593 | _CONST char *_current_locale; |
||
594 | |||
595 | int __sdidinit; /* 1 means stdio has been init'd */ |
||
596 | |||
597 | void _EXFNPTR(__cleanup, (struct _reent *)); |
||
598 | |||
599 | /* used by mprec routines */ |
||
600 | struct _Bigint *_result; |
||
601 | int _result_k; |
||
602 | struct _Bigint *_p5s; |
||
603 | struct _Bigint **_freelist; |
||
604 | |||
605 | /* used by some fp conversion routines */ |
||
606 | int _cvtlen; /* should be size_t */ |
||
607 | char *_cvtbuf; |
||
608 | |||
609 | union |
||
610 | { |
||
611 | struct |
||
612 | { |
||
613 | unsigned int _unused_rand; |
||
614 | char * _strtok_last; |
||
615 | char _asctime_buf[_REENT_ASCTIME_SIZE]; |
||
616 | struct __tm _localtime_buf; |
||
617 | int _gamma_signgam; |
||
618 | __extension__ unsigned long long _rand_next; |
||
619 | struct _rand48 _r48; |
||
620 | _mbstate_t _mblen_state; |
||
621 | _mbstate_t _mbtowc_state; |
||
622 | _mbstate_t _wctomb_state; |
||
623 | char _l64a_buf[8]; |
||
624 | char _signal_buf[_REENT_SIGNAL_SIZE]; |
||
625 | int _getdate_err; |
||
626 | _mbstate_t _mbrlen_state; |
||
627 | _mbstate_t _mbrtowc_state; |
||
628 | _mbstate_t _mbsrtowcs_state; |
||
629 | _mbstate_t _wcrtomb_state; |
||
630 | _mbstate_t _wcsrtombs_state; |
||
631 | int _h_errno; |
||
632 | } _reent; |
||
633 | /* Two next two fields were once used by malloc. They are no longer |
||
634 | used. They are used to preserve the space used before so as to |
||
635 | allow addition of new reent fields and keep binary compatibility. */ |
||
636 | struct |
||
637 | { |
||
638 | #define _N_LISTS 30 |
||
639 | unsigned char * _nextf[_N_LISTS]; |
||
640 | unsigned int _nmalloc[_N_LISTS]; |
||
641 | } _unused; |
||
642 | } _new; |
||
643 | |||
644 | /* atexit stuff */ |
||
645 | struct _atexit *_atexit; /* points to head of LIFO stack */ |
||
646 | struct _atexit _atexit0; /* one guaranteed table, required by ANSI */ |
||
647 | |||
648 | /* signal info */ |
||
649 | void (**(_sig_func))(int); |
||
650 | |||
651 | /* These are here last so that __FILE can grow without changing the offsets |
||
652 | of the above members (on the off chance that future binary compatibility |
||
653 | would be broken otherwise). */ |
||
654 | struct _glue __sglue; /* root of glue chain */ |
||
655 | __FILE __sf[3]; /* first three file descriptors */ |
||
656 | }; |
||
657 | |||
658 | #define _REENT_INIT(var) \ |
||
659 | { 0, \ |
||
660 | &(var).__sf[0], \ |
||
661 | &(var).__sf[1], \ |
||
662 | &(var).__sf[2], \ |
||
663 | 0, \ |
||
664 | "", \ |
||
665 | 0, \ |
||
666 | "C", \ |
||
667 | 0, \ |
||
668 | _NULL, \ |
||
669 | _NULL, \ |
||
670 | 0, \ |
||
671 | _NULL, \ |
||
672 | _NULL, \ |
||
673 | 0, \ |
||
674 | _NULL, \ |
||
675 | { \ |
||
676 | { \ |
||
677 | 0, \ |
||
678 | _NULL, \ |
||
679 | "", \ |
||
680 | {0, 0, 0, 0, 0, 0, 0, 0, 0}, \ |
||
681 | 0, \ |
||
682 | 1, \ |
||
683 | { \ |
||
684 | {_RAND48_SEED_0, _RAND48_SEED_1, _RAND48_SEED_2}, \ |
||
685 | {_RAND48_MULT_0, _RAND48_MULT_1, _RAND48_MULT_2}, \ |
||
686 | _RAND48_ADD \ |
||
687 | }, \ |
||
688 | {0, {0}}, \ |
||
689 | {0, {0}}, \ |
||
690 | {0, {0}}, \ |
||
691 | "", \ |
||
692 | "", \ |
||
693 | 0, \ |
||
694 | {0, {0}}, \ |
||
695 | {0, {0}}, \ |
||
696 | {0, {0}}, \ |
||
697 | {0, {0}}, \ |
||
698 | {0, {0}} \ |
||
699 | } \ |
||
700 | }, \ |
||
701 | _NULL, \ |
||
702 | {_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}}, \ |
||
703 | _NULL, \ |
||
704 | {_NULL, 0, _NULL} \ |
||
705 | } |
||
706 | |||
707 | #define _REENT_INIT_PTR(var) \ |
||
708 | { (var)->_errno = 0; \ |
||
709 | (var)->_stdin = &(var)->__sf[0]; \ |
||
710 | (var)->_stdout = &(var)->__sf[1]; \ |
||
711 | (var)->_stderr = &(var)->__sf[2]; \ |
||
712 | (var)->_inc = 0; \ |
||
713 | memset(&(var)->_emergency, 0, sizeof((var)->_emergency)); \ |
||
714 | (var)->_current_category = 0; \ |
||
715 | (var)->_current_locale = "C"; \ |
||
716 | (var)->__sdidinit = 0; \ |
||
717 | (var)->__cleanup = _NULL; \ |
||
718 | (var)->_result = _NULL; \ |
||
719 | (var)->_result_k = 0; \ |
||
720 | (var)->_p5s = _NULL; \ |
||
721 | (var)->_freelist = _NULL; \ |
||
722 | (var)->_cvtlen = 0; \ |
||
723 | (var)->_cvtbuf = _NULL; \ |
||
724 | (var)->_new._reent._unused_rand = 0; \ |
||
725 | (var)->_new._reent._strtok_last = _NULL; \ |
||
726 | (var)->_new._reent._asctime_buf[0] = 0; \ |
||
727 | memset(&(var)->_new._reent._localtime_buf, 0, sizeof((var)->_new._reent._localtime_buf)); \ |
||
728 | (var)->_new._reent._gamma_signgam = 0; \ |
||
729 | (var)->_new._reent._rand_next = 1; \ |
||
730 | (var)->_new._reent._r48._seed[0] = _RAND48_SEED_0; \ |
||
731 | (var)->_new._reent._r48._seed[1] = _RAND48_SEED_1; \ |
||
732 | (var)->_new._reent._r48._seed[2] = _RAND48_SEED_2; \ |
||
733 | (var)->_new._reent._r48._mult[0] = _RAND48_MULT_0; \ |
||
734 | (var)->_new._reent._r48._mult[1] = _RAND48_MULT_1; \ |
||
735 | (var)->_new._reent._r48._mult[2] = _RAND48_MULT_2; \ |
||
736 | (var)->_new._reent._r48._add = _RAND48_ADD; \ |
||
737 | (var)->_new._reent._mblen_state.__count = 0; \ |
||
738 | (var)->_new._reent._mblen_state.__value.__wch = 0; \ |
||
739 | (var)->_new._reent._mbtowc_state.__count = 0; \ |
||
740 | (var)->_new._reent._mbtowc_state.__value.__wch = 0; \ |
||
741 | (var)->_new._reent._wctomb_state.__count = 0; \ |
||
742 | (var)->_new._reent._wctomb_state.__value.__wch = 0; \ |
||
743 | (var)->_new._reent._mbrlen_state.__count = 0; \ |
||
744 | (var)->_new._reent._mbrlen_state.__value.__wch = 0; \ |
||
745 | (var)->_new._reent._mbrtowc_state.__count = 0; \ |
||
746 | (var)->_new._reent._mbrtowc_state.__value.__wch = 0; \ |
||
747 | (var)->_new._reent._mbsrtowcs_state.__count = 0; \ |
||
748 | (var)->_new._reent._mbsrtowcs_state.__value.__wch = 0; \ |
||
749 | (var)->_new._reent._wcrtomb_state.__count = 0; \ |
||
750 | (var)->_new._reent._wcrtomb_state.__value.__wch = 0; \ |
||
751 | (var)->_new._reent._wcsrtombs_state.__count = 0; \ |
||
752 | (var)->_new._reent._wcsrtombs_state.__value.__wch = 0; \ |
||
753 | (var)->_new._reent._l64a_buf[0] = '\0'; \ |
||
754 | (var)->_new._reent._signal_buf[0] = '\0'; \ |
||
755 | (var)->_new._reent._getdate_err = 0; \ |
||
756 | (var)->_atexit = _NULL; \ |
||
757 | (var)->_atexit0._next = _NULL; \ |
||
758 | (var)->_atexit0._ind = 0; \ |
||
759 | (var)->_atexit0._fns[0] = _NULL; \ |
||
760 | (var)->_atexit0._on_exit_args._fntypes = 0; \ |
||
761 | (var)->_atexit0._on_exit_args._fnargs[0] = _NULL; \ |
||
762 | (var)->_sig_func = _NULL; \ |
||
763 | (var)->__sglue._next = _NULL; \ |
||
764 | (var)->__sglue._niobs = 0; \ |
||
765 | (var)->__sglue._iobs = _NULL; \ |
||
766 | memset(&(var)->__sf, 0, sizeof((var)->__sf)); \ |
||
767 | } |
||
768 | |||
769 | #define _REENT_CHECK_RAND48(ptr) /* nothing */ |
||
770 | #define _REENT_CHECK_MP(ptr) /* nothing */ |
||
771 | #define _REENT_CHECK_TM(ptr) /* nothing */ |
||
772 | #define _REENT_CHECK_ASCTIME_BUF(ptr) /* nothing */ |
||
773 | #define _REENT_CHECK_EMERGENCY(ptr) /* nothing */ |
||
774 | #define _REENT_CHECK_MISC(ptr) /* nothing */ |
||
775 | #define _REENT_CHECK_SIGNAL_BUF(ptr) /* nothing */ |
||
776 | |||
777 | #define _REENT_SIGNGAM(ptr) ((ptr)->_new._reent._gamma_signgam) |
||
778 | #define _REENT_RAND_NEXT(ptr) ((ptr)->_new._reent._rand_next) |
||
779 | #define _REENT_RAND48_SEED(ptr) ((ptr)->_new._reent._r48._seed) |
||
780 | #define _REENT_RAND48_MULT(ptr) ((ptr)->_new._reent._r48._mult) |
||
781 | #define _REENT_RAND48_ADD(ptr) ((ptr)->_new._reent._r48._add) |
||
782 | #define _REENT_MP_RESULT(ptr) ((ptr)->_result) |
||
783 | #define _REENT_MP_RESULT_K(ptr) ((ptr)->_result_k) |
||
784 | #define _REENT_MP_P5S(ptr) ((ptr)->_p5s) |
||
785 | #define _REENT_MP_FREELIST(ptr) ((ptr)->_freelist) |
||
786 | #define _REENT_ASCTIME_BUF(ptr) ((ptr)->_new._reent._asctime_buf) |
||
787 | #define _REENT_TM(ptr) (&(ptr)->_new._reent._localtime_buf) |
||
788 | #define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) |
||
789 | #define _REENT_STRTOK_LAST(ptr) ((ptr)->_new._reent._strtok_last) |
||
790 | #define _REENT_MBLEN_STATE(ptr) ((ptr)->_new._reent._mblen_state) |
||
791 | #define _REENT_MBTOWC_STATE(ptr)((ptr)->_new._reent._mbtowc_state) |
||
792 | #define _REENT_WCTOMB_STATE(ptr)((ptr)->_new._reent._wctomb_state) |
||
793 | #define _REENT_MBRLEN_STATE(ptr)((ptr)->_new._reent._mbrlen_state) |
||
794 | #define _REENT_MBRTOWC_STATE(ptr)((ptr)->_new._reent._mbrtowc_state) |
||
795 | #define _REENT_MBSRTOWCS_STATE(ptr)((ptr)->_new._reent._mbsrtowcs_state) |
||
796 | #define _REENT_WCRTOMB_STATE(ptr)((ptr)->_new._reent._wcrtomb_state) |
||
797 | #define _REENT_WCSRTOMBS_STATE(ptr)((ptr)->_new._reent._wcsrtombs_state) |
||
798 | #define _REENT_L64A_BUF(ptr) ((ptr)->_new._reent._l64a_buf) |
||
799 | #define _REENT_SIGNAL_BUF(ptr) ((ptr)->_new._reent._signal_buf) |
||
800 | #define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_new._reent._getdate_err)) |
||
801 | |||
802 | #endif /* !_REENT_SMALL */ |
||
803 | |||
804 | /* This value is used in stdlib/misc.c. reent/reent.c has to know it |
||
805 | as well to make sure the freelist is correctly free'd. Therefore |
||
806 | we define it here, rather than in stdlib/misc.c, as before. */ |
||
807 | #define _Kmax (sizeof (size_t) << 3) |
||
808 | |||
809 | /* |
||
810 | * All references to struct _reent are via this pointer. |
||
811 | * Internally, newlib routines that need to reference it should use _REENT. |
||
812 | */ |
||
813 | |||
814 | #ifndef __ATTRIBUTE_IMPURE_PTR__ |
||
815 | #define __ATTRIBUTE_IMPURE_PTR__ |
||
816 | #endif |
||
817 | |||
818 | extern struct _reent *_impure_ptr __ATTRIBUTE_IMPURE_PTR__; |
||
819 | extern struct _reent *_CONST _global_impure_ptr __ATTRIBUTE_IMPURE_PTR__; |
||
820 | |||
821 | void _reclaim_reent _PARAMS ((struct _reent *)); |
||
822 | |||
823 | /* #define _REENT_ONLY define this to get only reentrant routines */ |
||
824 | |||
825 | |||
826 | static inline struct _reent *__getreent(void) |
||
827 | { |
||
828 | struct _reent *ent; |
||
829 | __asm__ __volatile__( |
||
830 | "movl %%fs:16, %0" |
||
831 | :"=r"(ent)); |
||
832 | return ent; |
||
833 | }; |
||
834 | |||
835 | # define _REENT (__getreent()) |
||
836 | #define _GLOBAL_REENT _global_impure_ptr |
||
837 | |||
838 | #ifdef __cplusplus |
||
839 | } |
||
840 | #endif |
||
841 | #endif /* _SYS_REENT_H_ */><> |