Mercurial > hg > CbC > CbC_gcc
annotate include/libiberty.h @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | a06113de4d67 |
| children | b7f97abdc517 |
| rev | line source |
|---|---|
| 0 | 1 /* Function declarations for libiberty. |
| 2 | |
|
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
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3 Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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changeset
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4 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
| 0 | 5 |
| 6 Note - certain prototypes declared in this header file are for | |
| 7 functions whoes implementation copyright does not belong to the | |
| 8 FSF. Those prototypes are present in this file for reference | |
| 9 purposes only and their presence in this file should not construed | |
| 10 as an indication of ownership by the FSF of the implementation of | |
| 11 those functions in any way or form whatsoever. | |
| 12 | |
| 13 This program is free software; you can redistribute it and/or modify | |
| 14 it under the terms of the GNU General Public License as published by | |
| 15 the Free Software Foundation; either version 2, or (at your option) | |
| 16 any later version. | |
| 17 | |
| 18 This program is distributed in the hope that it will be useful, | |
| 19 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 21 GNU General Public License for more details. | |
| 22 | |
| 23 You should have received a copy of the GNU General Public License | |
| 24 along with this program; if not, write to the Free Software | |
| 25 Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
| 26 Boston, MA 02110-1301, USA. | |
| 27 | |
| 28 Written by Cygnus Support, 1994. | |
| 29 | |
| 30 The libiberty library provides a number of functions which are | |
| 31 missing on some operating systems. We do not declare those here, | |
| 32 to avoid conflicts with the system header files on operating | |
| 33 systems that do support those functions. In this file we only | |
| 34 declare those functions which are specific to libiberty. */ | |
| 35 | |
| 36 #ifndef LIBIBERTY_H | |
| 37 #define LIBIBERTY_H | |
| 38 | |
| 39 #ifdef __cplusplus | |
| 40 extern "C" { | |
| 41 #endif | |
| 42 | |
| 43 #include "ansidecl.h" | |
| 44 | |
| 45 /* Get a definition for size_t. */ | |
| 46 #include <stddef.h> | |
| 47 /* Get a definition for va_list. */ | |
| 48 #include <stdarg.h> | |
| 49 | |
| 50 #include <stdio.h> | |
| 51 | |
| 52 /* If the OS supports it, ensure that the supplied stream is setup to | |
| 53 avoid any multi-threaded locking. Otherwise leave the FILE pointer | |
| 54 unchanged. If the stream is NULL do nothing. */ | |
| 55 | |
| 56 extern void unlock_stream (FILE *); | |
| 57 | |
| 58 /* If the OS supports it, ensure that the standard I/O streams, stdin, | |
| 59 stdout and stderr are setup to avoid any multi-threaded locking. | |
| 60 Otherwise do nothing. */ | |
| 61 | |
| 62 extern void unlock_std_streams (void); | |
| 63 | |
| 64 /* Open and return a FILE pointer. If the OS supports it, ensure that | |
| 65 the stream is setup to avoid any multi-threaded locking. Otherwise | |
| 66 return the FILE pointer unchanged. */ | |
| 67 | |
| 68 extern FILE *fopen_unlocked (const char *, const char *); | |
| 69 extern FILE *fdopen_unlocked (int, const char *); | |
| 70 extern FILE *freopen_unlocked (const char *, const char *, FILE *); | |
| 71 | |
| 72 /* Build an argument vector from a string. Allocates memory using | |
| 73 malloc. Use freeargv to free the vector. */ | |
| 74 | |
| 75 extern char **buildargv (const char *) ATTRIBUTE_MALLOC; | |
| 76 | |
| 77 /* Free a vector returned by buildargv. */ | |
| 78 | |
| 79 extern void freeargv (char **); | |
| 80 | |
| 81 /* Duplicate an argument vector. Allocates memory using malloc. Use | |
| 82 freeargv to free the vector. */ | |
| 83 | |
| 84 extern char **dupargv (char **) ATTRIBUTE_MALLOC; | |
| 85 | |
| 86 /* Expand "@file" arguments in argv. */ | |
| 87 | |
| 88 extern void expandargv PARAMS ((int *, char ***)); | |
| 89 | |
| 90 /* Write argv to an @-file, inserting necessary quoting. */ | |
| 91 | |
| 92 extern int writeargv PARAMS ((char **, FILE *)); | |
| 93 | |
| 94 /* Return the last component of a path name. Note that we can't use a | |
| 95 prototype here because the parameter is declared inconsistently | |
| 96 across different systems, sometimes as "char *" and sometimes as | |
| 97 "const char *" */ | |
| 98 | |
| 99 /* HAVE_DECL_* is a three-state macro: undefined, 0 or 1. If it is | |
| 100 undefined, we haven't run the autoconf check so provide the | |
| 101 declaration without arguments. If it is 0, we checked and failed | |
| 102 to find the declaration so provide a fully prototyped one. If it | |
| 103 is 1, we found it so don't provide any declaration at all. */ | |
| 104 #if !HAVE_DECL_BASENAME | |
| 105 #if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined(__NetBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || defined (__MINGW32__) || defined (HAVE_DECL_BASENAME) | |
| 106 extern char *basename (const char *); | |
| 107 #else | |
| 108 /* Do not allow basename to be used if there is no prototype seen. We | |
| 109 either need to use the above prototype or have one from | |
| 110 autoconf which would result in HAVE_DECL_BASENAME being set. */ | |
| 111 #define basename basename_cannot_be_used_without_a_prototype | |
| 112 #endif | |
| 113 #endif | |
| 114 | |
| 115 /* A well-defined basename () that is always compiled in. */ | |
| 116 | |
| 117 extern const char *lbasename (const char *); | |
| 118 | |
| 119 /* A well-defined realpath () that is always compiled in. */ | |
| 120 | |
| 121 extern char *lrealpath (const char *); | |
| 122 | |
| 123 /* Concatenate an arbitrary number of strings. You must pass NULL as | |
| 124 the last argument of this function, to terminate the list of | |
| 125 strings. Allocates memory using xmalloc. */ | |
| 126 | |
| 127 extern char *concat (const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_SENTINEL; | |
| 128 | |
| 129 /* Concatenate an arbitrary number of strings. You must pass NULL as | |
| 130 the last argument of this function, to terminate the list of | |
| 131 strings. Allocates memory using xmalloc. The first argument is | |
| 132 not one of the strings to be concatenated, but if not NULL is a | |
| 133 pointer to be freed after the new string is created, similar to the | |
| 134 way xrealloc works. */ | |
| 135 | |
| 136 extern char *reconcat (char *, const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_SENTINEL; | |
| 137 | |
| 138 /* Determine the length of concatenating an arbitrary number of | |
| 139 strings. You must pass NULL as the last argument of this function, | |
| 140 to terminate the list of strings. */ | |
| 141 | |
| 142 extern unsigned long concat_length (const char *, ...) ATTRIBUTE_SENTINEL; | |
| 143 | |
| 144 /* Concatenate an arbitrary number of strings into a SUPPLIED area of | |
| 145 memory. You must pass NULL as the last argument of this function, | |
| 146 to terminate the list of strings. The supplied memory is assumed | |
| 147 to be large enough. */ | |
| 148 | |
| 149 extern char *concat_copy (char *, const char *, ...) ATTRIBUTE_SENTINEL; | |
| 150 | |
| 151 /* Concatenate an arbitrary number of strings into a GLOBAL area of | |
| 152 memory. You must pass NULL as the last argument of this function, | |
| 153 to terminate the list of strings. The supplied memory is assumed | |
| 154 to be large enough. */ | |
| 155 | |
| 156 extern char *concat_copy2 (const char *, ...) ATTRIBUTE_SENTINEL; | |
| 157 | |
| 158 /* This is the global area used by concat_copy2. */ | |
| 159 | |
| 160 extern char *libiberty_concat_ptr; | |
| 161 | |
| 162 /* Concatenate an arbitrary number of strings. You must pass NULL as | |
| 163 the last argument of this function, to terminate the list of | |
| 164 strings. Allocates memory using alloca. The arguments are | |
| 165 evaluated twice! */ | |
| 166 #define ACONCAT(ACONCAT_PARAMS) \ | |
| 167 (libiberty_concat_ptr = (char *) alloca (concat_length ACONCAT_PARAMS + 1), \ | |
| 168 concat_copy2 ACONCAT_PARAMS) | |
| 169 | |
| 170 /* Check whether two file descriptors refer to the same file. */ | |
| 171 | |
| 172 extern int fdmatch (int fd1, int fd2); | |
| 173 | |
| 174 /* Return the position of the first bit set in the argument. */ | |
| 175 /* Prototypes vary from system to system, so we only provide a | |
| 176 prototype on systems where we know that we need it. */ | |
| 177 #if defined (HAVE_DECL_FFS) && !HAVE_DECL_FFS | |
| 178 extern int ffs(int); | |
| 179 #endif | |
| 180 | |
| 181 /* Get the working directory. The result is cached, so don't call | |
| 182 chdir() between calls to getpwd(). */ | |
| 183 | |
| 184 extern char * getpwd (void); | |
| 185 | |
| 186 /* Get the current time. */ | |
| 187 /* Prototypes vary from system to system, so we only provide a | |
| 188 prototype on systems where we know that we need it. */ | |
| 189 #ifdef __MINGW32__ | |
| 190 /* Forward declaration to avoid #include <sys/time.h>. */ | |
| 191 struct timeval; | |
| 192 extern int gettimeofday (struct timeval *, void *); | |
| 193 #endif | |
| 194 | |
| 195 /* Get the amount of time the process has run, in microseconds. */ | |
| 196 | |
| 197 extern long get_run_time (void); | |
| 198 | |
| 199 /* Generate a relocated path to some installation directory. Allocates | |
| 200 return value using malloc. */ | |
| 201 | |
| 202 extern char *make_relative_prefix (const char *, const char *, | |
| 203 const char *) ATTRIBUTE_MALLOC; | |
| 204 | |
| 205 /* Generate a relocated path to some installation directory without | |
| 206 attempting to follow any soft links. Allocates | |
| 207 return value using malloc. */ | |
| 208 | |
| 209 extern char *make_relative_prefix_ignore_links (const char *, const char *, | |
| 210 const char *) ATTRIBUTE_MALLOC; | |
| 211 | |
| 212 /* Choose a temporary directory to use for scratch files. */ | |
| 213 | |
| 214 extern char *choose_temp_base (void) ATTRIBUTE_MALLOC; | |
| 215 | |
| 216 /* Return a temporary file name or NULL if unable to create one. */ | |
| 217 | |
| 218 extern char *make_temp_file (const char *) ATTRIBUTE_MALLOC; | |
| 219 | |
| 220 /* Remove a link to a file unless it is special. */ | |
| 221 | |
| 222 extern int unlink_if_ordinary (const char *); | |
| 223 | |
| 224 /* Allocate memory filled with spaces. Allocates using malloc. */ | |
| 225 | |
| 226 extern const char *spaces (int count); | |
| 227 | |
| 228 /* Return the maximum error number for which strerror will return a | |
| 229 string. */ | |
| 230 | |
| 231 extern int errno_max (void); | |
| 232 | |
| 233 /* Return the name of an errno value (e.g., strerrno (EINVAL) returns | |
| 234 "EINVAL"). */ | |
| 235 | |
| 236 extern const char *strerrno (int); | |
| 237 | |
| 238 /* Given the name of an errno value, return the value. */ | |
| 239 | |
| 240 extern int strtoerrno (const char *); | |
| 241 | |
| 242 /* ANSI's strerror(), but more robust. */ | |
| 243 | |
| 244 extern char *xstrerror (int); | |
| 245 | |
| 246 /* Return the maximum signal number for which strsignal will return a | |
| 247 string. */ | |
| 248 | |
| 249 extern int signo_max (void); | |
| 250 | |
| 251 /* Return a signal message string for a signal number | |
| 252 (e.g., strsignal (SIGHUP) returns something like "Hangup"). */ | |
| 253 /* This is commented out as it can conflict with one in system headers. | |
| 254 We still document its existence though. */ | |
| 255 | |
| 256 /*extern const char *strsignal (int);*/ | |
| 257 | |
| 258 /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns | |
| 259 "SIGHUP"). */ | |
| 260 | |
| 261 extern const char *strsigno (int); | |
| 262 | |
| 263 /* Given the name of a signal, return its number. */ | |
| 264 | |
| 265 extern int strtosigno (const char *); | |
| 266 | |
| 267 /* Register a function to be run by xexit. Returns 0 on success. */ | |
| 268 | |
| 269 extern int xatexit (void (*fn) (void)); | |
| 270 | |
| 271 /* Exit, calling all the functions registered with xatexit. */ | |
| 272 | |
| 273 extern void xexit (int status) ATTRIBUTE_NORETURN; | |
| 274 | |
| 275 /* Set the program name used by xmalloc. */ | |
| 276 | |
| 277 extern void xmalloc_set_program_name (const char *); | |
| 278 | |
| 279 /* Report an allocation failure. */ | |
| 280 extern void xmalloc_failed (size_t) ATTRIBUTE_NORETURN; | |
| 281 | |
| 282 /* Allocate memory without fail. If malloc fails, this will print a | |
| 283 message to stderr (using the name set by xmalloc_set_program_name, | |
| 284 if any) and then call xexit. */ | |
| 285 | |
| 286 extern void *xmalloc (size_t) ATTRIBUTE_MALLOC; | |
| 287 | |
| 288 /* Reallocate memory without fail. This works like xmalloc. Note, | |
| 289 realloc type functions are not suitable for attribute malloc since | |
| 290 they may return the same address across multiple calls. */ | |
| 291 | |
| 292 extern void *xrealloc (void *, size_t); | |
| 293 | |
| 294 /* Allocate memory without fail and set it to zero. This works like | |
| 295 xmalloc. */ | |
| 296 | |
| 297 extern void *xcalloc (size_t, size_t) ATTRIBUTE_MALLOC; | |
| 298 | |
| 299 /* Copy a string into a memory buffer without fail. */ | |
| 300 | |
| 301 extern char *xstrdup (const char *) ATTRIBUTE_MALLOC; | |
| 302 | |
| 303 /* Copy at most N characters from string into a buffer without fail. */ | |
| 304 | |
| 305 extern char *xstrndup (const char *, size_t) ATTRIBUTE_MALLOC; | |
| 306 | |
| 307 /* Copy an existing memory buffer to a new memory buffer without fail. */ | |
| 308 | |
| 309 extern void *xmemdup (const void *, size_t, size_t) ATTRIBUTE_MALLOC; | |
| 310 | |
| 311 /* Physical memory routines. Return values are in BYTES. */ | |
| 312 extern double physmem_total (void); | |
| 313 extern double physmem_available (void); | |
| 314 | |
|
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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changeset
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315 /* Compute the 32-bit CRC of a block of memory. */ |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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316 extern unsigned int xcrc32 (const unsigned char *, int, unsigned int); |
| 0 | 317 |
| 318 /* These macros provide a K&R/C89/C++-friendly way of allocating structures | |
| 319 with nice encapsulation. The XDELETE*() macros are technically | |
| 320 superfluous, but provided here for symmetry. Using them consistently | |
| 321 makes it easier to update client code to use different allocators such | |
| 322 as new/delete and new[]/delete[]. */ | |
| 323 | |
| 324 /* Scalar allocators. */ | |
| 325 | |
| 326 #define XALLOCA(T) ((T *) alloca (sizeof (T))) | |
| 327 #define XNEW(T) ((T *) xmalloc (sizeof (T))) | |
| 328 #define XCNEW(T) ((T *) xcalloc (1, sizeof (T))) | |
| 329 #define XDUP(T, P) ((T *) xmemdup ((P), sizeof (T), sizeof (T))) | |
| 330 #define XDELETE(P) free ((void*) (P)) | |
| 331 | |
| 332 /* Array allocators. */ | |
| 333 | |
| 334 #define XALLOCAVEC(T, N) ((T *) alloca (sizeof (T) * (N))) | |
| 335 #define XNEWVEC(T, N) ((T *) xmalloc (sizeof (T) * (N))) | |
| 336 #define XCNEWVEC(T, N) ((T *) xcalloc ((N), sizeof (T))) | |
| 337 #define XDUPVEC(T, P, N) ((T *) xmemdup ((P), sizeof (T) * (N), sizeof (T) * (N))) | |
| 338 #define XRESIZEVEC(T, P, N) ((T *) xrealloc ((void *) (P), sizeof (T) * (N))) | |
| 339 #define XDELETEVEC(P) free ((void*) (P)) | |
| 340 | |
| 341 /* Allocators for variable-sized structures and raw buffers. */ | |
| 342 | |
| 343 #define XALLOCAVAR(T, S) ((T *) alloca ((S))) | |
| 344 #define XNEWVAR(T, S) ((T *) xmalloc ((S))) | |
| 345 #define XCNEWVAR(T, S) ((T *) xcalloc (1, (S))) | |
| 346 #define XDUPVAR(T, P, S1, S2) ((T *) xmemdup ((P), (S1), (S2))) | |
| 347 #define XRESIZEVAR(T, P, S) ((T *) xrealloc ((P), (S))) | |
| 348 | |
| 349 /* Type-safe obstack allocator. */ | |
| 350 | |
| 351 #define XOBNEW(O, T) ((T *) obstack_alloc ((O), sizeof (T))) | |
| 352 #define XOBNEWVEC(O, T, N) ((T *) obstack_alloc ((O), sizeof (T) * (N))) | |
| 353 #define XOBNEWVAR(O, T, S) ((T *) obstack_alloc ((O), (S))) | |
| 354 #define XOBFINISH(O, T) ((T) obstack_finish ((O))) | |
| 355 | |
| 356 /* hex character manipulation routines */ | |
| 357 | |
| 358 #define _hex_array_size 256 | |
| 359 #define _hex_bad 99 | |
| 360 extern const unsigned char _hex_value[_hex_array_size]; | |
| 361 extern void hex_init (void); | |
| 362 #define hex_p(c) (hex_value (c) != _hex_bad) | |
| 363 /* If you change this, note well: Some code relies on side effects in | |
| 364 the argument being performed exactly once. */ | |
| 365 #define hex_value(c) ((unsigned int) _hex_value[(unsigned char) (c)]) | |
| 366 | |
| 367 /* Flags for pex_init. These are bits to be or'ed together. */ | |
| 368 | |
| 369 /* Record subprocess times, if possible. */ | |
| 370 #define PEX_RECORD_TIMES 0x1 | |
| 371 | |
| 372 /* Use pipes for communication between processes, if possible. */ | |
| 373 #define PEX_USE_PIPES 0x2 | |
| 374 | |
| 375 /* Save files used for communication between processes. */ | |
| 376 #define PEX_SAVE_TEMPS 0x4 | |
| 377 | |
| 378 /* Prepare to execute one or more programs, with standard output of | |
| 379 each program fed to standard input of the next. | |
| 380 FLAGS As above. | |
| 381 PNAME The name of the program to report in error messages. | |
| 382 TEMPBASE A base name to use for temporary files; may be NULL to | |
| 383 use a random name. | |
| 384 Returns NULL on error. */ | |
| 385 | |
| 386 extern struct pex_obj *pex_init (int flags, const char *pname, | |
| 387 const char *tempbase); | |
| 388 | |
| 389 /* Flags for pex_run. These are bits to be or'ed together. */ | |
| 390 | |
| 391 /* Last program in pipeline. Standard output of program goes to | |
| 392 OUTNAME, or, if OUTNAME is NULL, to standard output of caller. Do | |
| 393 not set this if you want to call pex_read_output. After this is | |
| 394 set, pex_run may no longer be called with the same struct | |
| 395 pex_obj. */ | |
| 396 #define PEX_LAST 0x1 | |
| 397 | |
| 398 /* Search for program in executable search path. */ | |
| 399 #define PEX_SEARCH 0x2 | |
| 400 | |
| 401 /* OUTNAME is a suffix. */ | |
| 402 #define PEX_SUFFIX 0x4 | |
| 403 | |
| 404 /* Send program's standard error to standard output. */ | |
| 405 #define PEX_STDERR_TO_STDOUT 0x8 | |
| 406 | |
| 407 /* Input file should be opened in binary mode. This flag is ignored | |
| 408 on Unix. */ | |
| 409 #define PEX_BINARY_INPUT 0x10 | |
| 410 | |
| 411 /* Output file should be opened in binary mode. This flag is ignored | |
| 412 on Unix. For proper behaviour PEX_BINARY_INPUT and | |
| 413 PEX_BINARY_OUTPUT have to match appropriately--i.e., a call using | |
| 414 PEX_BINARY_OUTPUT should be followed by a call using | |
| 415 PEX_BINARY_INPUT. */ | |
| 416 #define PEX_BINARY_OUTPUT 0x20 | |
| 417 | |
| 418 /* Capture stderr to a pipe. The output can be read by | |
| 419 calling pex_read_err and reading from the returned | |
| 420 FILE object. This flag may be specified only for | |
| 421 the last program in a pipeline. | |
| 422 | |
| 423 This flag is supported only on Unix and Windows. */ | |
| 424 #define PEX_STDERR_TO_PIPE 0x40 | |
| 425 | |
| 426 /* Capture stderr in binary mode. This flag is ignored | |
| 427 on Unix. */ | |
| 428 #define PEX_BINARY_ERROR 0x80 | |
| 429 | |
| 430 | |
| 431 /* Execute one program. Returns NULL on success. On error returns an | |
| 432 error string (typically just the name of a system call); the error | |
| 433 string is statically allocated. | |
| 434 | |
| 435 OBJ Returned by pex_init. | |
| 436 | |
| 437 FLAGS As above. | |
| 438 | |
| 439 EXECUTABLE The program to execute. | |
| 440 | |
| 441 ARGV NULL terminated array of arguments to pass to the program. | |
| 442 | |
| 443 OUTNAME Sets the output file name as follows: | |
| 444 | |
| 445 PEX_SUFFIX set (OUTNAME may not be NULL): | |
| 446 TEMPBASE parameter to pex_init not NULL: | |
| 447 Output file name is the concatenation of TEMPBASE | |
| 448 and OUTNAME. | |
| 449 TEMPBASE is NULL: | |
| 450 Output file name is a random file name ending in | |
| 451 OUTNAME. | |
| 452 PEX_SUFFIX not set: | |
| 453 OUTNAME not NULL: | |
| 454 Output file name is OUTNAME. | |
| 455 OUTNAME NULL, TEMPBASE not NULL: | |
| 456 Output file name is randomly chosen using | |
| 457 TEMPBASE. | |
| 458 OUTNAME NULL, TEMPBASE NULL: | |
| 459 Output file name is randomly chosen. | |
| 460 | |
| 461 If PEX_LAST is not set, the output file name is the | |
| 462 name to use for a temporary file holding stdout, if | |
| 463 any (there will not be a file if PEX_USE_PIPES is set | |
| 464 and the system supports pipes). If a file is used, it | |
| 465 will be removed when no longer needed unless | |
| 466 PEX_SAVE_TEMPS is set. | |
| 467 | |
| 468 If PEX_LAST is set, and OUTNAME is not NULL, standard | |
| 469 output is written to the output file name. The file | |
| 470 will not be removed. If PEX_LAST and PEX_SUFFIX are | |
| 471 both set, TEMPBASE may not be NULL. | |
| 472 | |
| 473 ERRNAME If not NULL, this is the name of a file to which | |
| 474 standard error is written. If NULL, standard error of | |
| 475 the program is standard error of the caller. | |
| 476 | |
| 477 ERR On an error return, *ERR is set to an errno value, or | |
| 478 to 0 if there is no relevant errno. | |
| 479 */ | |
| 480 | |
| 481 extern const char *pex_run (struct pex_obj *obj, int flags, | |
| 482 const char *executable, char * const *argv, | |
| 483 const char *outname, const char *errname, | |
| 484 int *err); | |
| 485 | |
| 486 /* As for pex_run (), but takes an extra parameter to enable the | |
| 487 environment for the child process to be specified. | |
| 488 | |
| 489 ENV The environment for the child process, specified as | |
| 490 an array of character pointers. Each element of the | |
| 491 array should point to a string of the form VAR=VALUE, | |
| 492 with the exception of the last element which must be | |
| 493 a null pointer. | |
| 494 */ | |
| 495 | |
| 496 extern const char *pex_run_in_environment (struct pex_obj *obj, int flags, | |
| 497 const char *executable, | |
| 498 char * const *argv, | |
| 499 char * const *env, | |
| 500 const char *outname, | |
| 501 const char *errname, int *err); | |
| 502 | |
| 503 /* Return a stream for a temporary file to pass to the first program | |
| 504 in the pipeline as input. The file name is chosen as for pex_run. | |
| 505 pex_run closes the file automatically; don't close it yourself. */ | |
| 506 | |
| 507 extern FILE *pex_input_file (struct pex_obj *obj, int flags, | |
| 508 const char *in_name); | |
| 509 | |
| 510 /* Return a stream for a pipe connected to the standard input of the | |
| 511 first program in the pipeline. You must have passed | |
| 512 `PEX_USE_PIPES' to `pex_init'. Close the returned stream | |
| 513 yourself. */ | |
| 514 | |
| 515 extern FILE *pex_input_pipe (struct pex_obj *obj, int binary); | |
| 516 | |
| 517 /* Read the standard output of the last program to be executed. | |
| 518 pex_run can not be called after this. BINARY should be non-zero if | |
| 519 the file should be opened in binary mode; this is ignored on Unix. | |
| 520 Returns NULL on error. Don't call fclose on the returned FILE; it | |
| 521 will be closed by pex_free. */ | |
| 522 | |
| 523 extern FILE *pex_read_output (struct pex_obj *, int binary); | |
| 524 | |
| 525 /* Read the standard error of the last program to be executed. | |
| 526 pex_run can not be called after this. BINARY should be non-zero if | |
| 527 the file should be opened in binary mode; this is ignored on Unix. | |
| 528 Returns NULL on error. Don't call fclose on the returned FILE; it | |
| 529 will be closed by pex_free. */ | |
| 530 | |
| 531 extern FILE *pex_read_err (struct pex_obj *, int binary); | |
| 532 | |
| 533 /* Return exit status of all programs in VECTOR. COUNT indicates the | |
| 534 size of VECTOR. The status codes in the vector are in the order of | |
| 535 the calls to pex_run. Returns 0 on error, 1 on success. */ | |
| 536 | |
| 537 extern int pex_get_status (struct pex_obj *, int count, int *vector); | |
| 538 | |
| 539 /* Return times of all programs in VECTOR. COUNT indicates the size | |
| 540 of VECTOR. struct pex_time is really just struct timeval, but that | |
| 541 is not portable to all systems. Returns 0 on error, 1 on | |
| 542 success. */ | |
| 543 | |
| 544 struct pex_time | |
| 545 { | |
| 546 unsigned long user_seconds; | |
| 547 unsigned long user_microseconds; | |
| 548 unsigned long system_seconds; | |
| 549 unsigned long system_microseconds; | |
| 550 }; | |
| 551 | |
| 552 extern int pex_get_times (struct pex_obj *, int count, | |
| 553 struct pex_time *vector); | |
| 554 | |
| 555 /* Clean up a pex_obj. If you have not called pex_get_times or | |
| 556 pex_get_status, this will try to kill the subprocesses. */ | |
| 557 | |
| 558 extern void pex_free (struct pex_obj *); | |
| 559 | |
| 560 /* Just execute one program. Return value is as for pex_run. | |
| 561 FLAGS Combination of PEX_SEARCH and PEX_STDERR_TO_STDOUT. | |
| 562 EXECUTABLE As for pex_run. | |
| 563 ARGV As for pex_run. | |
| 564 PNAME As for pex_init. | |
| 565 OUTNAME As for pex_run when PEX_LAST is set. | |
| 566 ERRNAME As for pex_run. | |
| 567 STATUS Set to exit status on success. | |
| 568 ERR As for pex_run. | |
| 569 */ | |
| 570 | |
| 571 extern const char *pex_one (int flags, const char *executable, | |
| 572 char * const *argv, const char *pname, | |
| 573 const char *outname, const char *errname, | |
| 574 int *status, int *err); | |
| 575 | |
| 576 /* pexecute and pwait are the old pexecute interface, still here for | |
| 577 backward compatibility. Don't use these for new code. Instead, | |
| 578 use pex_init/pex_run/pex_get_status/pex_free, or pex_one. */ | |
| 579 | |
| 580 /* Definitions used by the pexecute routine. */ | |
| 581 | |
| 582 #define PEXECUTE_FIRST 1 | |
| 583 #define PEXECUTE_LAST 2 | |
| 584 #define PEXECUTE_ONE (PEXECUTE_FIRST + PEXECUTE_LAST) | |
| 585 #define PEXECUTE_SEARCH 4 | |
| 586 #define PEXECUTE_VERBOSE 8 | |
| 587 | |
| 588 /* Execute a program. */ | |
| 589 | |
| 590 extern int pexecute (const char *, char * const *, const char *, | |
| 591 const char *, char **, char **, int); | |
| 592 | |
| 593 /* Wait for pexecute to finish. */ | |
| 594 | |
| 595 extern int pwait (int, int *, int); | |
| 596 | |
| 597 #if !HAVE_DECL_ASPRINTF | |
| 598 /* Like sprintf but provides a pointer to malloc'd storage, which must | |
| 599 be freed by the caller. */ | |
| 600 | |
| 601 extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2; | |
| 602 #endif | |
| 603 | |
| 604 #if !HAVE_DECL_VASPRINTF | |
| 605 /* Like vsprintf but provides a pointer to malloc'd storage, which | |
| 606 must be freed by the caller. */ | |
| 607 | |
| 608 extern int vasprintf (char **, const char *, va_list) ATTRIBUTE_PRINTF(2,0); | |
| 609 #endif | |
| 610 | |
| 611 #if defined(HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF | |
| 612 /* Like sprintf but prints at most N characters. */ | |
| 613 extern int snprintf (char *, size_t, const char *, ...) ATTRIBUTE_PRINTF_3; | |
| 614 #endif | |
| 615 | |
| 616 #if defined(HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF | |
| 617 /* Like vsprintf but prints at most N characters. */ | |
| 618 extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,0); | |
| 619 #endif | |
| 620 | |
| 621 #if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP | |
| 622 /* Compare version strings. */ | |
| 623 extern int strverscmp (const char *, const char *); | |
| 624 #endif | |
| 625 | |
| 626 #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 627 | |
| 628 /* Drastically simplified alloca configurator. If we're using GCC, | |
| 629 we use __builtin_alloca; otherwise we use the C alloca. The C | |
| 630 alloca is always available. You can override GCC by defining | |
| 631 USE_C_ALLOCA yourself. The canonical autoconf macro C_ALLOCA is | |
| 632 also set/unset as it is often used to indicate whether code needs | |
| 633 to call alloca(0). */ | |
| 634 extern void *C_alloca (size_t) ATTRIBUTE_MALLOC; | |
| 635 #undef alloca | |
| 636 #if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA | |
| 637 # define alloca(x) __builtin_alloca(x) | |
| 638 # undef C_ALLOCA | |
| 639 # define ASTRDUP(X) \ | |
| 640 (__extension__ ({ const char *const libiberty_optr = (X); \ | |
| 641 const unsigned long libiberty_len = strlen (libiberty_optr) + 1; \ | |
| 642 char *const libiberty_nptr = (char *const) alloca (libiberty_len); \ | |
| 643 (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len); })) | |
| 644 #else | |
| 645 # define alloca(x) C_alloca(x) | |
| 646 # undef USE_C_ALLOCA | |
| 647 # define USE_C_ALLOCA 1 | |
| 648 # undef C_ALLOCA | |
| 649 # define C_ALLOCA 1 | |
| 650 extern const char *libiberty_optr; | |
| 651 extern char *libiberty_nptr; | |
| 652 extern unsigned long libiberty_len; | |
| 653 # define ASTRDUP(X) \ | |
| 654 (libiberty_optr = (X), \ | |
| 655 libiberty_len = strlen (libiberty_optr) + 1, \ | |
| 656 libiberty_nptr = (char *) alloca (libiberty_len), \ | |
| 657 (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len)) | |
| 658 #endif | |
| 659 | |
| 660 #ifdef __cplusplus | |
| 661 } | |
| 662 #endif | |
| 663 | |
| 664 | |
| 665 #endif /* ! defined (LIBIBERTY_H) */ |