Mercurial > hg > CbC > CbC_gcc
annotate include/libiberty.h @ 138:fc828634a951
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Thu, 08 Nov 2018 14:17:14 +0900 |
| parents | 84e7813d76e9 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 0 | 1 /* Function declarations for libiberty. |
| 2 | |
| 131 | 3 Copyright (C) 1997-2018 Free Software Foundation, Inc. |
| 0 | 4 |
| 5 Note - certain prototypes declared in this header file are for | |
| 6 functions whoes implementation copyright does not belong to the | |
| 7 FSF. Those prototypes are present in this file for reference | |
| 8 purposes only and their presence in this file should not construed | |
| 9 as an indication of ownership by the FSF of the implementation of | |
| 10 those functions in any way or form whatsoever. | |
| 11 | |
| 12 This program is free software; you can redistribute it and/or modify | |
| 13 it under the terms of the GNU General Public License as published by | |
| 14 the Free Software Foundation; either version 2, or (at your option) | |
| 15 any later version. | |
| 16 | |
| 17 This program is distributed in the hope that it will be useful, | |
| 18 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 GNU General Public License for more details. | |
| 21 | |
| 22 You should have received a copy of the GNU General Public License | |
| 23 along with this program; if not, write to the Free Software | |
| 24 Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
| 25 Boston, MA 02110-1301, USA. | |
| 26 | |
| 27 Written by Cygnus Support, 1994. | |
| 28 | |
| 29 The libiberty library provides a number of functions which are | |
| 30 missing on some operating systems. We do not declare those here, | |
| 31 to avoid conflicts with the system header files on operating | |
| 32 systems that do support those functions. In this file we only | |
| 33 declare those functions which are specific to libiberty. */ | |
| 34 | |
| 35 #ifndef LIBIBERTY_H | |
| 36 #define LIBIBERTY_H | |
| 37 | |
| 38 #ifdef __cplusplus | |
| 39 extern "C" { | |
| 40 #endif | |
| 41 | |
| 42 #include "ansidecl.h" | |
| 43 | |
| 44 /* Get a definition for size_t. */ | |
| 45 #include <stddef.h> | |
| 46 /* Get a definition for va_list. */ | |
| 47 #include <stdarg.h> | |
| 48 | |
| 49 #include <stdio.h> | |
| 50 | |
| 51 /* If the OS supports it, ensure that the supplied stream is setup to | |
| 52 avoid any multi-threaded locking. Otherwise leave the FILE pointer | |
| 53 unchanged. If the stream is NULL do nothing. */ | |
| 54 | |
| 55 extern void unlock_stream (FILE *); | |
| 56 | |
| 57 /* If the OS supports it, ensure that the standard I/O streams, stdin, | |
| 58 stdout and stderr are setup to avoid any multi-threaded locking. | |
| 59 Otherwise do nothing. */ | |
| 60 | |
| 61 extern void unlock_std_streams (void); | |
| 62 | |
| 63 /* Open and return a FILE pointer. If the OS supports it, ensure that | |
| 64 the stream is setup to avoid any multi-threaded locking. Otherwise | |
| 65 return the FILE pointer unchanged. */ | |
| 66 | |
| 67 extern FILE *fopen_unlocked (const char *, const char *); | |
| 68 extern FILE *fdopen_unlocked (int, const char *); | |
| 69 extern FILE *freopen_unlocked (const char *, const char *, FILE *); | |
| 70 | |
| 71 /* Build an argument vector from a string. Allocates memory using | |
| 72 malloc. Use freeargv to free the vector. */ | |
| 73 | |
| 74 extern char **buildargv (const char *) ATTRIBUTE_MALLOC; | |
| 75 | |
| 76 /* Free a vector returned by buildargv. */ | |
| 77 | |
| 78 extern void freeargv (char **); | |
| 79 | |
| 80 /* Duplicate an argument vector. Allocates memory using malloc. Use | |
| 81 freeargv to free the vector. */ | |
| 82 | |
| 111 | 83 extern char **dupargv (char * const *) ATTRIBUTE_MALLOC; |
| 0 | 84 |
| 85 /* Expand "@file" arguments in argv. */ | |
| 86 | |
| 111 | 87 extern void expandargv (int *, char ***); |
| 0 | 88 |
| 89 /* Write argv to an @-file, inserting necessary quoting. */ | |
| 90 | |
| 111 | 91 extern int writeargv (char * const *, FILE *); |
| 92 | |
| 93 /* Return the number of elements in argv. */ | |
| 94 | |
| 95 extern int countargv (char * const *); | |
| 0 | 96 |
| 97 /* Return the last component of a path name. Note that we can't use a | |
| 98 prototype here because the parameter is declared inconsistently | |
| 99 across different systems, sometimes as "char *" and sometimes as | |
| 100 "const char *" */ | |
| 101 | |
| 102 /* HAVE_DECL_* is a three-state macro: undefined, 0 or 1. If it is | |
| 103 undefined, we haven't run the autoconf check so provide the | |
| 104 declaration without arguments. If it is 0, we checked and failed | |
| 105 to find the declaration so provide a fully prototyped one. If it | |
| 106 is 1, we found it so don't provide any declaration at all. */ | |
| 107 #if !HAVE_DECL_BASENAME | |
| 111 | 108 #if defined (__GNU_LIBRARY__ ) || defined (__linux__) \ |
| 109 || defined (__FreeBSD__) || defined (__OpenBSD__) || defined (__NetBSD__) \ | |
| 110 || defined (__CYGWIN__) || defined (__CYGWIN32__) || defined (__MINGW32__) \ | |
| 111 || defined (__DragonFly__) || defined (HAVE_DECL_BASENAME) | |
| 112 extern char *basename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1); | |
| 0 | 113 #else |
| 114 /* Do not allow basename to be used if there is no prototype seen. We | |
| 115 either need to use the above prototype or have one from | |
| 116 autoconf which would result in HAVE_DECL_BASENAME being set. */ | |
| 117 #define basename basename_cannot_be_used_without_a_prototype | |
| 118 #endif | |
| 119 #endif | |
| 120 | |
| 121 /* A well-defined basename () that is always compiled in. */ | |
| 122 | |
| 111 | 123 extern const char *lbasename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1); |
| 0 | 124 |
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125 /* Same, but assumes DOS semantics (drive name, backslash is also a |
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126 dir separator) regardless of host. */ |
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127 |
| 111 | 128 extern const char *dos_lbasename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1); |
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129 |
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130 /* Same, but assumes Unix semantics (absolute paths always start with |
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131 a slash, only forward slash is accepted as dir separator) |
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132 regardless of host. */ |
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133 |
| 111 | 134 extern const char *unix_lbasename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1); |
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135 |
| 0 | 136 /* A well-defined realpath () that is always compiled in. */ |
| 137 | |
| 138 extern char *lrealpath (const char *); | |
| 139 | |
| 140 /* Concatenate an arbitrary number of strings. You must pass NULL as | |
| 141 the last argument of this function, to terminate the list of | |
| 142 strings. Allocates memory using xmalloc. */ | |
| 143 | |
| 111 | 144 extern char *concat (const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_SENTINEL; |
| 0 | 145 |
| 146 /* Concatenate an arbitrary number of strings. You must pass NULL as | |
| 147 the last argument of this function, to terminate the list of | |
| 148 strings. Allocates memory using xmalloc. The first argument is | |
| 149 not one of the strings to be concatenated, but if not NULL is a | |
| 150 pointer to be freed after the new string is created, similar to the | |
| 151 way xrealloc works. */ | |
| 152 | |
| 111 | 153 extern char *reconcat (char *, const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_SENTINEL; |
| 0 | 154 |
| 155 /* Determine the length of concatenating an arbitrary number of | |
| 156 strings. You must pass NULL as the last argument of this function, | |
| 157 to terminate the list of strings. */ | |
| 158 | |
| 159 extern unsigned long concat_length (const char *, ...) ATTRIBUTE_SENTINEL; | |
| 160 | |
| 161 /* Concatenate an arbitrary number of strings into a SUPPLIED area of | |
| 162 memory. You must pass NULL as the last argument of this function, | |
| 163 to terminate the list of strings. The supplied memory is assumed | |
| 164 to be large enough. */ | |
| 165 | |
| 111 | 166 extern char *concat_copy (char *, const char *, ...) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1) ATTRIBUTE_SENTINEL; |
| 0 | 167 |
| 168 /* Concatenate an arbitrary number of strings into a GLOBAL area of | |
| 169 memory. You must pass NULL as the last argument of this function, | |
| 170 to terminate the list of strings. The supplied memory is assumed | |
| 171 to be large enough. */ | |
| 172 | |
| 111 | 173 extern char *concat_copy2 (const char *, ...) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_SENTINEL; |
| 0 | 174 |
| 175 /* This is the global area used by concat_copy2. */ | |
| 176 | |
| 177 extern char *libiberty_concat_ptr; | |
| 178 | |
| 179 /* Concatenate an arbitrary number of strings. You must pass NULL as | |
| 180 the last argument of this function, to terminate the list of | |
| 181 strings. Allocates memory using alloca. The arguments are | |
| 182 evaluated twice! */ | |
| 183 #define ACONCAT(ACONCAT_PARAMS) \ | |
| 184 (libiberty_concat_ptr = (char *) alloca (concat_length ACONCAT_PARAMS + 1), \ | |
| 185 concat_copy2 ACONCAT_PARAMS) | |
| 186 | |
| 187 /* Check whether two file descriptors refer to the same file. */ | |
| 188 | |
| 189 extern int fdmatch (int fd1, int fd2); | |
| 190 | |
| 191 /* Return the position of the first bit set in the argument. */ | |
| 192 /* Prototypes vary from system to system, so we only provide a | |
| 193 prototype on systems where we know that we need it. */ | |
| 194 #if defined (HAVE_DECL_FFS) && !HAVE_DECL_FFS | |
| 195 extern int ffs(int); | |
| 196 #endif | |
| 197 | |
| 198 /* Get the working directory. The result is cached, so don't call | |
| 199 chdir() between calls to getpwd(). */ | |
| 200 | |
| 201 extern char * getpwd (void); | |
| 202 | |
| 203 /* Get the current time. */ | |
| 204 /* Prototypes vary from system to system, so we only provide a | |
| 205 prototype on systems where we know that we need it. */ | |
| 206 #ifdef __MINGW32__ | |
| 207 /* Forward declaration to avoid #include <sys/time.h>. */ | |
| 208 struct timeval; | |
| 209 extern int gettimeofday (struct timeval *, void *); | |
| 210 #endif | |
| 211 | |
| 212 /* Get the amount of time the process has run, in microseconds. */ | |
| 213 | |
| 214 extern long get_run_time (void); | |
| 215 | |
| 216 /* Generate a relocated path to some installation directory. Allocates | |
| 217 return value using malloc. */ | |
| 218 | |
| 219 extern char *make_relative_prefix (const char *, const char *, | |
| 220 const char *) ATTRIBUTE_MALLOC; | |
| 221 | |
| 222 /* Generate a relocated path to some installation directory without | |
| 223 attempting to follow any soft links. Allocates | |
| 224 return value using malloc. */ | |
| 225 | |
| 226 extern char *make_relative_prefix_ignore_links (const char *, const char *, | |
| 227 const char *) ATTRIBUTE_MALLOC; | |
| 228 | |
| 111 | 229 /* Returns a pointer to a directory path suitable for creating temporary |
| 230 files in. */ | |
| 231 | |
| 232 extern const char *choose_tmpdir (void) ATTRIBUTE_RETURNS_NONNULL; | |
| 233 | |
| 0 | 234 /* Choose a temporary directory to use for scratch files. */ |
| 235 | |
| 111 | 236 extern char *choose_temp_base (void) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 237 |
| 238 /* Return a temporary file name or NULL if unable to create one. */ | |
| 239 | |
| 240 extern char *make_temp_file (const char *) ATTRIBUTE_MALLOC; | |
| 241 | |
| 131 | 242 /* Return a temporary file name with given PREFIX and SUFFIX |
| 243 or NULL if unable to create one. */ | |
| 244 | |
| 245 extern char *make_temp_file_with_prefix (const char *, const char *) ATTRIBUTE_MALLOC; | |
| 246 | |
| 0 | 247 /* Remove a link to a file unless it is special. */ |
| 248 | |
| 249 extern int unlink_if_ordinary (const char *); | |
| 250 | |
| 251 /* Allocate memory filled with spaces. Allocates using malloc. */ | |
| 252 | |
| 253 extern const char *spaces (int count); | |
| 254 | |
| 255 /* Return the maximum error number for which strerror will return a | |
| 256 string. */ | |
| 257 | |
| 258 extern int errno_max (void); | |
| 259 | |
| 260 /* Return the name of an errno value (e.g., strerrno (EINVAL) returns | |
| 261 "EINVAL"). */ | |
| 262 | |
| 263 extern const char *strerrno (int); | |
| 264 | |
| 265 /* Given the name of an errno value, return the value. */ | |
| 266 | |
| 267 extern int strtoerrno (const char *); | |
| 268 | |
| 269 /* ANSI's strerror(), but more robust. */ | |
| 270 | |
| 111 | 271 extern char *xstrerror (int) ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 272 |
| 273 /* Return the maximum signal number for which strsignal will return a | |
| 274 string. */ | |
| 275 | |
| 276 extern int signo_max (void); | |
| 277 | |
| 278 /* Return a signal message string for a signal number | |
| 279 (e.g., strsignal (SIGHUP) returns something like "Hangup"). */ | |
| 280 /* This is commented out as it can conflict with one in system headers. | |
| 281 We still document its existence though. */ | |
| 282 | |
| 283 /*extern const char *strsignal (int);*/ | |
| 284 | |
| 285 /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns | |
| 286 "SIGHUP"). */ | |
| 287 | |
| 288 extern const char *strsigno (int); | |
| 289 | |
| 290 /* Given the name of a signal, return its number. */ | |
| 291 | |
| 292 extern int strtosigno (const char *); | |
| 293 | |
| 294 /* Register a function to be run by xexit. Returns 0 on success. */ | |
| 295 | |
| 296 extern int xatexit (void (*fn) (void)); | |
| 297 | |
| 298 /* Exit, calling all the functions registered with xatexit. */ | |
| 299 | |
| 300 extern void xexit (int status) ATTRIBUTE_NORETURN; | |
| 301 | |
| 302 /* Set the program name used by xmalloc. */ | |
| 303 | |
| 304 extern void xmalloc_set_program_name (const char *); | |
| 305 | |
| 306 /* Report an allocation failure. */ | |
| 307 extern void xmalloc_failed (size_t) ATTRIBUTE_NORETURN; | |
| 308 | |
| 309 /* Allocate memory without fail. If malloc fails, this will print a | |
| 310 message to stderr (using the name set by xmalloc_set_program_name, | |
| 311 if any) and then call xexit. */ | |
| 312 | |
| 111 | 313 extern void *xmalloc (size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 314 |
| 315 /* Reallocate memory without fail. This works like xmalloc. Note, | |
| 316 realloc type functions are not suitable for attribute malloc since | |
| 317 they may return the same address across multiple calls. */ | |
| 318 | |
| 111 | 319 extern void *xrealloc (void *, size_t) ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 320 |
| 321 /* Allocate memory without fail and set it to zero. This works like | |
| 322 xmalloc. */ | |
| 323 | |
| 111 | 324 extern void *xcalloc (size_t, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 325 |
| 326 /* Copy a string into a memory buffer without fail. */ | |
| 327 | |
| 111 | 328 extern char *xstrdup (const char *) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 329 |
| 330 /* Copy at most N characters from string into a buffer without fail. */ | |
| 331 | |
| 111 | 332 extern char *xstrndup (const char *, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 333 |
| 334 /* Copy an existing memory buffer to a new memory buffer without fail. */ | |
| 335 | |
| 111 | 336 extern void *xmemdup (const void *, size_t, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 337 |
| 338 /* Physical memory routines. Return values are in BYTES. */ | |
| 339 extern double physmem_total (void); | |
| 340 extern double physmem_available (void); | |
| 341 | |
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342 /* Compute the 32-bit CRC of a block of memory. */ |
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343 extern unsigned int xcrc32 (const unsigned char *, int, unsigned int); |
| 0 | 344 |
| 345 /* These macros provide a K&R/C89/C++-friendly way of allocating structures | |
| 346 with nice encapsulation. The XDELETE*() macros are technically | |
| 347 superfluous, but provided here for symmetry. Using them consistently | |
| 348 makes it easier to update client code to use different allocators such | |
| 349 as new/delete and new[]/delete[]. */ | |
| 350 | |
| 351 /* Scalar allocators. */ | |
| 352 | |
| 353 #define XALLOCA(T) ((T *) alloca (sizeof (T))) | |
| 354 #define XNEW(T) ((T *) xmalloc (sizeof (T))) | |
| 355 #define XCNEW(T) ((T *) xcalloc (1, sizeof (T))) | |
| 356 #define XDUP(T, P) ((T *) xmemdup ((P), sizeof (T), sizeof (T))) | |
| 357 #define XDELETE(P) free ((void*) (P)) | |
| 358 | |
| 359 /* Array allocators. */ | |
| 360 | |
| 361 #define XALLOCAVEC(T, N) ((T *) alloca (sizeof (T) * (N))) | |
| 362 #define XNEWVEC(T, N) ((T *) xmalloc (sizeof (T) * (N))) | |
| 363 #define XCNEWVEC(T, N) ((T *) xcalloc ((N), sizeof (T))) | |
| 364 #define XDUPVEC(T, P, N) ((T *) xmemdup ((P), sizeof (T) * (N), sizeof (T) * (N))) | |
| 365 #define XRESIZEVEC(T, P, N) ((T *) xrealloc ((void *) (P), sizeof (T) * (N))) | |
| 366 #define XDELETEVEC(P) free ((void*) (P)) | |
| 367 | |
| 368 /* Allocators for variable-sized structures and raw buffers. */ | |
| 369 | |
| 370 #define XALLOCAVAR(T, S) ((T *) alloca ((S))) | |
| 371 #define XNEWVAR(T, S) ((T *) xmalloc ((S))) | |
| 372 #define XCNEWVAR(T, S) ((T *) xcalloc (1, (S))) | |
| 373 #define XDUPVAR(T, P, S1, S2) ((T *) xmemdup ((P), (S1), (S2))) | |
| 374 #define XRESIZEVAR(T, P, S) ((T *) xrealloc ((P), (S))) | |
| 375 | |
| 376 /* Type-safe obstack allocator. */ | |
| 377 | |
| 378 #define XOBNEW(O, T) ((T *) obstack_alloc ((O), sizeof (T))) | |
| 379 #define XOBNEWVEC(O, T, N) ((T *) obstack_alloc ((O), sizeof (T) * (N))) | |
| 380 #define XOBNEWVAR(O, T, S) ((T *) obstack_alloc ((O), (S))) | |
| 381 #define XOBFINISH(O, T) ((T) obstack_finish ((O))) | |
| 382 | |
| 383 /* hex character manipulation routines */ | |
| 384 | |
| 385 #define _hex_array_size 256 | |
| 386 #define _hex_bad 99 | |
| 387 extern const unsigned char _hex_value[_hex_array_size]; | |
| 388 extern void hex_init (void); | |
| 389 #define hex_p(c) (hex_value (c) != _hex_bad) | |
| 390 /* If you change this, note well: Some code relies on side effects in | |
| 391 the argument being performed exactly once. */ | |
| 392 #define hex_value(c) ((unsigned int) _hex_value[(unsigned char) (c)]) | |
| 393 | |
| 394 /* Flags for pex_init. These are bits to be or'ed together. */ | |
| 395 | |
| 396 /* Record subprocess times, if possible. */ | |
| 397 #define PEX_RECORD_TIMES 0x1 | |
| 398 | |
| 399 /* Use pipes for communication between processes, if possible. */ | |
| 400 #define PEX_USE_PIPES 0x2 | |
| 401 | |
| 402 /* Save files used for communication between processes. */ | |
| 403 #define PEX_SAVE_TEMPS 0x4 | |
| 404 | |
| 111 | 405 /* Max number of alloca bytes per call before we must switch to malloc. |
| 406 | |
| 407 ?? Swiped from gnulib's regex_internal.h header. Is this actually | |
| 408 the case? This number seems arbitrary, though sane. | |
| 409 | |
| 410 The OS usually guarantees only one guard page at the bottom of the stack, | |
| 411 and a page size can be as small as 4096 bytes. So we cannot safely | |
| 412 allocate anything larger than 4096 bytes. Also care for the possibility | |
| 413 of a few compiler-allocated temporary stack slots. */ | |
| 414 #define MAX_ALLOCA_SIZE 4032 | |
| 415 | |
| 0 | 416 /* Prepare to execute one or more programs, with standard output of |
| 417 each program fed to standard input of the next. | |
| 418 FLAGS As above. | |
| 419 PNAME The name of the program to report in error messages. | |
| 420 TEMPBASE A base name to use for temporary files; may be NULL to | |
| 421 use a random name. | |
| 422 Returns NULL on error. */ | |
| 423 | |
| 424 extern struct pex_obj *pex_init (int flags, const char *pname, | |
| 111 | 425 const char *tempbase) ATTRIBUTE_RETURNS_NONNULL; |
| 0 | 426 |
| 427 /* Flags for pex_run. These are bits to be or'ed together. */ | |
| 428 | |
| 429 /* Last program in pipeline. Standard output of program goes to | |
| 430 OUTNAME, or, if OUTNAME is NULL, to standard output of caller. Do | |
| 431 not set this if you want to call pex_read_output. After this is | |
| 432 set, pex_run may no longer be called with the same struct | |
| 433 pex_obj. */ | |
| 434 #define PEX_LAST 0x1 | |
| 435 | |
| 436 /* Search for program in executable search path. */ | |
| 437 #define PEX_SEARCH 0x2 | |
| 438 | |
| 439 /* OUTNAME is a suffix. */ | |
| 440 #define PEX_SUFFIX 0x4 | |
| 441 | |
| 442 /* Send program's standard error to standard output. */ | |
| 443 #define PEX_STDERR_TO_STDOUT 0x8 | |
| 444 | |
| 445 /* Input file should be opened in binary mode. This flag is ignored | |
| 446 on Unix. */ | |
| 447 #define PEX_BINARY_INPUT 0x10 | |
| 448 | |
| 449 /* Output file should be opened in binary mode. This flag is ignored | |
| 450 on Unix. For proper behaviour PEX_BINARY_INPUT and | |
| 451 PEX_BINARY_OUTPUT have to match appropriately--i.e., a call using | |
| 452 PEX_BINARY_OUTPUT should be followed by a call using | |
| 453 PEX_BINARY_INPUT. */ | |
| 454 #define PEX_BINARY_OUTPUT 0x20 | |
| 455 | |
| 456 /* Capture stderr to a pipe. The output can be read by | |
| 457 calling pex_read_err and reading from the returned | |
| 458 FILE object. This flag may be specified only for | |
| 459 the last program in a pipeline. | |
| 460 | |
| 461 This flag is supported only on Unix and Windows. */ | |
| 462 #define PEX_STDERR_TO_PIPE 0x40 | |
| 463 | |
| 464 /* Capture stderr in binary mode. This flag is ignored | |
| 465 on Unix. */ | |
| 466 #define PEX_BINARY_ERROR 0x80 | |
| 467 | |
| 111 | 468 /* Append stdout to existing file instead of truncating it. */ |
| 469 #define PEX_STDOUT_APPEND 0x100 | |
| 470 | |
| 471 /* Thes same as PEX_STDOUT_APPEND, but for STDERR. */ | |
| 472 #define PEX_STDERR_APPEND 0x200 | |
| 0 | 473 |
| 474 /* Execute one program. Returns NULL on success. On error returns an | |
| 475 error string (typically just the name of a system call); the error | |
| 476 string is statically allocated. | |
| 477 | |
| 478 OBJ Returned by pex_init. | |
| 479 | |
| 480 FLAGS As above. | |
| 481 | |
| 482 EXECUTABLE The program to execute. | |
| 483 | |
| 484 ARGV NULL terminated array of arguments to pass to the program. | |
| 485 | |
| 486 OUTNAME Sets the output file name as follows: | |
| 487 | |
| 488 PEX_SUFFIX set (OUTNAME may not be NULL): | |
| 489 TEMPBASE parameter to pex_init not NULL: | |
| 490 Output file name is the concatenation of TEMPBASE | |
| 491 and OUTNAME. | |
| 492 TEMPBASE is NULL: | |
| 493 Output file name is a random file name ending in | |
| 494 OUTNAME. | |
| 495 PEX_SUFFIX not set: | |
| 496 OUTNAME not NULL: | |
| 497 Output file name is OUTNAME. | |
| 498 OUTNAME NULL, TEMPBASE not NULL: | |
| 499 Output file name is randomly chosen using | |
| 500 TEMPBASE. | |
| 501 OUTNAME NULL, TEMPBASE NULL: | |
| 502 Output file name is randomly chosen. | |
| 503 | |
| 504 If PEX_LAST is not set, the output file name is the | |
| 505 name to use for a temporary file holding stdout, if | |
| 506 any (there will not be a file if PEX_USE_PIPES is set | |
| 507 and the system supports pipes). If a file is used, it | |
| 508 will be removed when no longer needed unless | |
| 509 PEX_SAVE_TEMPS is set. | |
| 510 | |
| 511 If PEX_LAST is set, and OUTNAME is not NULL, standard | |
| 512 output is written to the output file name. The file | |
| 513 will not be removed. If PEX_LAST and PEX_SUFFIX are | |
| 514 both set, TEMPBASE may not be NULL. | |
| 515 | |
| 516 ERRNAME If not NULL, this is the name of a file to which | |
| 517 standard error is written. If NULL, standard error of | |
| 518 the program is standard error of the caller. | |
| 519 | |
| 520 ERR On an error return, *ERR is set to an errno value, or | |
| 521 to 0 if there is no relevant errno. | |
| 522 */ | |
| 523 | |
| 524 extern const char *pex_run (struct pex_obj *obj, int flags, | |
| 525 const char *executable, char * const *argv, | |
| 526 const char *outname, const char *errname, | |
| 527 int *err); | |
| 528 | |
| 529 /* As for pex_run (), but takes an extra parameter to enable the | |
| 530 environment for the child process to be specified. | |
| 531 | |
| 532 ENV The environment for the child process, specified as | |
| 533 an array of character pointers. Each element of the | |
| 534 array should point to a string of the form VAR=VALUE, | |
| 535 with the exception of the last element which must be | |
| 536 a null pointer. | |
| 537 */ | |
| 538 | |
| 539 extern const char *pex_run_in_environment (struct pex_obj *obj, int flags, | |
| 540 const char *executable, | |
| 541 char * const *argv, | |
| 542 char * const *env, | |
| 543 const char *outname, | |
| 544 const char *errname, int *err); | |
| 545 | |
| 546 /* Return a stream for a temporary file to pass to the first program | |
| 547 in the pipeline as input. The file name is chosen as for pex_run. | |
| 548 pex_run closes the file automatically; don't close it yourself. */ | |
| 549 | |
| 550 extern FILE *pex_input_file (struct pex_obj *obj, int flags, | |
| 551 const char *in_name); | |
| 552 | |
| 553 /* Return a stream for a pipe connected to the standard input of the | |
| 554 first program in the pipeline. You must have passed | |
| 555 `PEX_USE_PIPES' to `pex_init'. Close the returned stream | |
| 556 yourself. */ | |
| 557 | |
| 558 extern FILE *pex_input_pipe (struct pex_obj *obj, int binary); | |
| 559 | |
| 560 /* Read the standard output of the last program to be executed. | |
| 561 pex_run can not be called after this. BINARY should be non-zero if | |
| 562 the file should be opened in binary mode; this is ignored on Unix. | |
| 563 Returns NULL on error. Don't call fclose on the returned FILE; it | |
| 564 will be closed by pex_free. */ | |
| 565 | |
| 566 extern FILE *pex_read_output (struct pex_obj *, int binary); | |
| 567 | |
| 568 /* Read the standard error of the last program to be executed. | |
| 569 pex_run can not be called after this. BINARY should be non-zero if | |
| 570 the file should be opened in binary mode; this is ignored on Unix. | |
| 571 Returns NULL on error. Don't call fclose on the returned FILE; it | |
| 572 will be closed by pex_free. */ | |
| 573 | |
| 574 extern FILE *pex_read_err (struct pex_obj *, int binary); | |
| 575 | |
| 576 /* Return exit status of all programs in VECTOR. COUNT indicates the | |
| 577 size of VECTOR. The status codes in the vector are in the order of | |
| 578 the calls to pex_run. Returns 0 on error, 1 on success. */ | |
| 579 | |
| 580 extern int pex_get_status (struct pex_obj *, int count, int *vector); | |
| 581 | |
| 582 /* Return times of all programs in VECTOR. COUNT indicates the size | |
| 583 of VECTOR. struct pex_time is really just struct timeval, but that | |
| 584 is not portable to all systems. Returns 0 on error, 1 on | |
| 585 success. */ | |
| 586 | |
| 587 struct pex_time | |
| 588 { | |
| 589 unsigned long user_seconds; | |
| 590 unsigned long user_microseconds; | |
| 591 unsigned long system_seconds; | |
| 592 unsigned long system_microseconds; | |
| 593 }; | |
| 594 | |
| 595 extern int pex_get_times (struct pex_obj *, int count, | |
| 596 struct pex_time *vector); | |
| 597 | |
| 598 /* Clean up a pex_obj. If you have not called pex_get_times or | |
| 599 pex_get_status, this will try to kill the subprocesses. */ | |
| 600 | |
| 601 extern void pex_free (struct pex_obj *); | |
| 602 | |
| 603 /* Just execute one program. Return value is as for pex_run. | |
| 604 FLAGS Combination of PEX_SEARCH and PEX_STDERR_TO_STDOUT. | |
| 605 EXECUTABLE As for pex_run. | |
| 606 ARGV As for pex_run. | |
| 607 PNAME As for pex_init. | |
| 608 OUTNAME As for pex_run when PEX_LAST is set. | |
| 609 ERRNAME As for pex_run. | |
| 610 STATUS Set to exit status on success. | |
| 611 ERR As for pex_run. | |
| 612 */ | |
| 613 | |
| 614 extern const char *pex_one (int flags, const char *executable, | |
| 615 char * const *argv, const char *pname, | |
| 616 const char *outname, const char *errname, | |
| 617 int *status, int *err); | |
| 618 | |
| 619 /* pexecute and pwait are the old pexecute interface, still here for | |
| 620 backward compatibility. Don't use these for new code. Instead, | |
| 621 use pex_init/pex_run/pex_get_status/pex_free, or pex_one. */ | |
| 622 | |
| 623 /* Definitions used by the pexecute routine. */ | |
| 624 | |
| 625 #define PEXECUTE_FIRST 1 | |
| 626 #define PEXECUTE_LAST 2 | |
| 627 #define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST) | |
| 628 #define PEXECUTE_SEARCH 4 | |
| 629 #define PEXECUTE_VERBOSE 8 | |
| 630 | |
| 631 /* Execute a program. */ | |
| 632 | |
| 633 extern int pexecute (const char *, char * const *, const char *, | |
| 634 const char *, char **, char **, int); | |
| 635 | |
| 636 /* Wait for pexecute to finish. */ | |
| 637 | |
| 638 extern int pwait (int, int *, int); | |
| 639 | |
| 111 | 640 #if defined(HAVE_DECL_ASPRINTF) && !HAVE_DECL_ASPRINTF |
| 0 | 641 /* Like sprintf but provides a pointer to malloc'd storage, which must |
| 642 be freed by the caller. */ | |
| 643 | |
| 644 extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2; | |
| 645 #endif | |
| 646 | |
| 111 | 647 /* Like asprintf but allocates memory without fail. This works like |
| 648 xmalloc. */ | |
| 649 | |
| 650 extern char *xasprintf (const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_PRINTF_1; | |
| 651 | |
| 0 | 652 #if !HAVE_DECL_VASPRINTF |
| 653 /* Like vsprintf but provides a pointer to malloc'd storage, which | |
| 654 must be freed by the caller. */ | |
| 655 | |
| 656 extern int vasprintf (char **, const char *, va_list) ATTRIBUTE_PRINTF(2,0); | |
| 657 #endif | |
| 658 | |
| 111 | 659 /* Like vasprintf but allocates memory without fail. This works like |
| 660 xmalloc. */ | |
| 661 | |
| 662 extern char *xvasprintf (const char *, va_list) ATTRIBUTE_MALLOC ATTRIBUTE_PRINTF(1,0); | |
| 663 | |
| 0 | 664 #if defined(HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF |
| 665 /* Like sprintf but prints at most N characters. */ | |
| 666 extern int snprintf (char *, size_t, const char *, ...) ATTRIBUTE_PRINTF_3; | |
| 667 #endif | |
| 668 | |
| 669 #if defined(HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF | |
| 670 /* Like vsprintf but prints at most N characters. */ | |
| 671 extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,0); | |
| 672 #endif | |
| 673 | |
| 111 | 674 #if defined (HAVE_DECL_STRNLEN) && !HAVE_DECL_STRNLEN |
| 675 extern size_t strnlen (const char *, size_t); | |
| 676 #endif | |
| 677 | |
| 678 #if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP | |
| 679 /* Compare version strings. */ | |
| 680 extern int strverscmp (const char *, const char *); | |
| 681 #endif | |
| 682 | |
| 683 #if defined(HAVE_DECL_STRTOL) && !HAVE_DECL_STRTOL | |
| 684 extern long int strtol (const char *nptr, | |
| 685 char **endptr, int base); | |
| 686 #endif | |
| 687 | |
| 688 #if defined(HAVE_DECL_STRTOUL) && !HAVE_DECL_STRTOUL | |
| 689 extern unsigned long int strtoul (const char *nptr, | |
| 690 char **endptr, int base); | |
| 691 #endif | |
| 692 | |
| 693 #if defined(HAVE_LONG_LONG) && defined(HAVE_DECL_STRTOLL) && !HAVE_DECL_STRTOLL | |
| 694 __extension__ | |
| 695 extern long long int strtoll (const char *nptr, | |
| 696 char **endptr, int base); | |
| 697 #endif | |
| 698 | |
| 699 #if defined(HAVE_LONG_LONG) && defined(HAVE_DECL_STRTOULL) && !HAVE_DECL_STRTOULL | |
| 700 __extension__ | |
| 701 extern unsigned long long int strtoull (const char *nptr, | |
| 702 char **endptr, int base); | |
| 703 #endif | |
| 704 | |
| 0 | 705 #if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP |
| 706 /* Compare version strings. */ | |
| 707 extern int strverscmp (const char *, const char *); | |
| 708 #endif | |
| 709 | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
710 /* Set the title of a process */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
711 extern void setproctitle (const char *name, ...); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
712 |
| 111 | 713 /* Increase stack limit if possible. */ |
| 714 extern void stack_limit_increase (unsigned long); | |
| 715 | |
| 0 | 716 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) |
| 717 | |
| 718 /* Drastically simplified alloca configurator. If we're using GCC, | |
| 719 we use __builtin_alloca; otherwise we use the C alloca. The C | |
| 720 alloca is always available. You can override GCC by defining | |
| 721 USE_C_ALLOCA yourself. The canonical autoconf macro C_ALLOCA is | |
| 722 also set/unset as it is often used to indicate whether code needs | |
| 723 to call alloca(0). */ | |
| 724 extern void *C_alloca (size_t) ATTRIBUTE_MALLOC; | |
| 725 #undef alloca | |
| 726 #if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA | |
| 727 # define alloca(x) __builtin_alloca(x) | |
| 728 # undef C_ALLOCA | |
| 729 # define ASTRDUP(X) \ | |
| 730 (__extension__ ({ const char *const libiberty_optr = (X); \ | |
| 731 const unsigned long libiberty_len = strlen (libiberty_optr) + 1; \ | |
| 111 | 732 char *const libiberty_nptr = (char *) alloca (libiberty_len); \ |
| 0 | 733 (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len); })) |
| 734 #else | |
| 735 # define alloca(x) C_alloca(x) | |
| 736 # undef USE_C_ALLOCA | |
| 737 # define USE_C_ALLOCA 1 | |
| 738 # undef C_ALLOCA | |
| 739 # define C_ALLOCA 1 | |
| 740 extern const char *libiberty_optr; | |
| 741 extern char *libiberty_nptr; | |
| 742 extern unsigned long libiberty_len; | |
| 743 # define ASTRDUP(X) \ | |
| 744 (libiberty_optr = (X), \ | |
| 745 libiberty_len = strlen (libiberty_optr) + 1, \ | |
| 746 libiberty_nptr = (char *) alloca (libiberty_len), \ | |
| 747 (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len)) | |
| 748 #endif | |
| 749 | |
| 750 #ifdef __cplusplus | |
| 751 } | |
| 752 #endif | |
| 753 | |
| 754 | |
| 755 #endif /* ! defined (LIBIBERTY_H) */ |