source: arduino-1-6-7/trunk/fuentes/arduino-ide-amd64/hardware/tools/avr/lib/gcc/avr/4.9.2/plugin/include/libiberty.h @ 4837

Last change on this file since 4837 was 4837, checked in by daduve, 3 years ago

Adding new version

File size: 24.5 KB
Line 
1/* Function declarations for libiberty.
2
3   Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4   2006, 2007, 2008, 2009, 2010, 2011, 2013 Free Software Foundation, Inc.
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
40extern "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
56extern 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
62extern 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
68extern FILE *fopen_unlocked (const char *, const char *);
69extern FILE *fdopen_unlocked (int, const char *);
70extern 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
75extern char **buildargv (const char *) ATTRIBUTE_MALLOC;
76
77/* Free a vector returned by buildargv.  */
78
79extern void freeargv (char **);
80
81/* Duplicate an argument vector. Allocates memory using malloc.  Use
82   freeargv to free the vector.  */
83
84extern char **dupargv (char **) ATTRIBUTE_MALLOC;
85
86/* Expand "@file" arguments in argv.  */
87
88extern void expandargv (int *, char ***);
89
90/* Write argv to an @-file, inserting necessary quoting.  */
91
92extern int writeargv (char **, FILE *);
93
94/* Return the number of elements in argv.  */
95
96extern int countargv (char**);
97
98/* Return the last component of a path name.  Note that we can't use a
99   prototype here because the parameter is declared inconsistently
100   across different systems, sometimes as "char *" and sometimes as
101   "const char *" */
102
103/* HAVE_DECL_* is a three-state macro: undefined, 0 or 1.  If it is
104   undefined, we haven't run the autoconf check so provide the
105   declaration without arguments.  If it is 0, we checked and failed
106   to find the declaration so provide a fully prototyped one.  If it
107   is 1, we found it so don't provide any declaration at all.  */
108#if !HAVE_DECL_BASENAME
109#if defined (__GNU_LIBRARY__ ) || defined (__linux__) || defined (__FreeBSD__) || defined (__OpenBSD__) || defined(__NetBSD__) || defined (__CYGWIN__) || defined (__CYGWIN32__) || defined (__MINGW32__) || defined (HAVE_DECL_BASENAME)
110extern char *basename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1);
111#else
112/* Do not allow basename to be used if there is no prototype seen.  We
113   either need to use the above prototype or have one from
114   autoconf which would result in HAVE_DECL_BASENAME being set.  */
115#define basename basename_cannot_be_used_without_a_prototype
116#endif
117#endif
118
119/* A well-defined basename () that is always compiled in.  */
120
121extern const char *lbasename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1);
122
123/* Same, but assumes DOS semantics (drive name, backslash is also a
124   dir separator) regardless of host.  */
125
126extern const char *dos_lbasename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1);
127
128/* Same, but assumes Unix semantics (absolute paths always start with
129   a slash, only forward slash is accepted as dir separator)
130   regardless of host.  */
131
132extern const char *unix_lbasename (const char *) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1);
133
134/* A well-defined realpath () that is always compiled in.  */
135
136extern char *lrealpath (const char *);
137
138/* Concatenate an arbitrary number of strings.  You must pass NULL as
139   the last argument of this function, to terminate the list of
140   strings.  Allocates memory using xmalloc.  */
141
142extern char *concat (const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_SENTINEL;
143
144/* Concatenate an arbitrary number of strings.  You must pass NULL as
145   the last argument of this function, to terminate the list of
146   strings.  Allocates memory using xmalloc.  The first argument is
147   not one of the strings to be concatenated, but if not NULL is a
148   pointer to be freed after the new string is created, similar to the
149   way xrealloc works.  */
150
151extern char *reconcat (char *, const char *, ...) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_SENTINEL;
152
153/* Determine the length of concatenating an arbitrary number of
154   strings.  You must pass NULL as the last argument of this function,
155   to terminate the list of strings.  */
156
157extern unsigned long concat_length (const char *, ...) ATTRIBUTE_SENTINEL;
158
159/* Concatenate an arbitrary number of strings into a SUPPLIED area of
160   memory.  You must pass NULL as the last argument of this function,
161   to terminate the list of strings.  The supplied memory is assumed
162   to be large enough.  */
163
164extern char *concat_copy (char *, const char *, ...) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_NONNULL(1) ATTRIBUTE_SENTINEL;
165
166/* Concatenate an arbitrary number of strings into a GLOBAL area of
167   memory.  You must pass NULL as the last argument of this function,
168   to terminate the list of strings.  The supplied memory is assumed
169   to be large enough.  */
170
171extern char *concat_copy2 (const char *, ...) ATTRIBUTE_RETURNS_NONNULL ATTRIBUTE_SENTINEL;
172
173/* This is the global area used by concat_copy2.  */
174
175extern char *libiberty_concat_ptr;
176
177/* Concatenate an arbitrary number of strings.  You must pass NULL as
178   the last argument of this function, to terminate the list of
179   strings.  Allocates memory using alloca.  The arguments are
180   evaluated twice!  */
181#define ACONCAT(ACONCAT_PARAMS) \
182  (libiberty_concat_ptr = (char *) alloca (concat_length ACONCAT_PARAMS + 1), \
183   concat_copy2 ACONCAT_PARAMS)
184
185/* Check whether two file descriptors refer to the same file.  */
186
187extern int fdmatch (int fd1, int fd2);
188
189/* Return the position of the first bit set in the argument.  */
190/* Prototypes vary from system to system, so we only provide a
191   prototype on systems where we know that we need it.  */
192#if defined (HAVE_DECL_FFS) && !HAVE_DECL_FFS
193extern int ffs(int);
194#endif
195
196/* Get the working directory.  The result is cached, so don't call
197   chdir() between calls to getpwd().  */
198
199extern char * getpwd (void);
200
201/* Get the current time.  */
202/* Prototypes vary from system to system, so we only provide a
203   prototype on systems where we know that we need it.  */
204#ifdef __MINGW32__
205/* Forward declaration to avoid #include <sys/time.h>.   */
206struct timeval;
207extern int gettimeofday (struct timeval *, void *); 
208#endif
209
210/* Get the amount of time the process has run, in microseconds.  */
211
212extern long get_run_time (void);
213
214/* Generate a relocated path to some installation directory.  Allocates
215   return value using malloc.  */
216
217extern char *make_relative_prefix (const char *, const char *,
218                                   const char *) ATTRIBUTE_MALLOC;
219
220/* Generate a relocated path to some installation directory without
221   attempting to follow any soft links.  Allocates
222   return value using malloc.  */
223
224extern char *make_relative_prefix_ignore_links (const char *, const char *,
225                                                const char *) ATTRIBUTE_MALLOC;
226
227/* Choose a temporary directory to use for scratch files.  */
228
229extern char *choose_temp_base (void) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL;
230
231/* Return a temporary file name or NULL if unable to create one.  */
232
233extern char *make_temp_file (const char *) ATTRIBUTE_MALLOC;
234
235/* Remove a link to a file unless it is special. */
236
237extern int unlink_if_ordinary (const char *);
238
239/* Allocate memory filled with spaces.  Allocates using malloc.  */
240
241extern const char *spaces (int count);
242
243/* Return the maximum error number for which strerror will return a
244   string.  */
245
246extern int errno_max (void);
247
248/* Return the name of an errno value (e.g., strerrno (EINVAL) returns
249   "EINVAL").  */
250
251extern const char *strerrno (int);
252
253/* Given the name of an errno value, return the value.  */
254
255extern int strtoerrno (const char *);
256
257/* ANSI's strerror(), but more robust.  */
258
259extern char *xstrerror (int) ATTRIBUTE_RETURNS_NONNULL;
260
261/* Return the maximum signal number for which strsignal will return a
262   string.  */
263
264extern int signo_max (void);
265
266/* Return a signal message string for a signal number
267   (e.g., strsignal (SIGHUP) returns something like "Hangup").  */
268/* This is commented out as it can conflict with one in system headers.
269   We still document its existence though.  */
270
271/*extern const char *strsignal (int);*/
272
273/* Return the name of a signal number (e.g., strsigno (SIGHUP) returns
274   "SIGHUP").  */
275
276extern const char *strsigno (int);
277
278/* Given the name of a signal, return its number.  */
279
280extern int strtosigno (const char *);
281
282/* Register a function to be run by xexit.  Returns 0 on success.  */
283
284extern int xatexit (void (*fn) (void));
285
286/* Exit, calling all the functions registered with xatexit.  */
287
288extern void xexit (int status) ATTRIBUTE_NORETURN;
289
290/* Set the program name used by xmalloc.  */
291
292extern void xmalloc_set_program_name (const char *);
293
294/* Report an allocation failure.  */
295extern void xmalloc_failed (size_t) ATTRIBUTE_NORETURN;
296
297/* Allocate memory without fail.  If malloc fails, this will print a
298   message to stderr (using the name set by xmalloc_set_program_name,
299   if any) and then call xexit.  */
300
301extern void *xmalloc (size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL;
302
303/* Reallocate memory without fail.  This works like xmalloc.  Note,
304   realloc type functions are not suitable for attribute malloc since
305   they may return the same address across multiple calls. */
306
307extern void *xrealloc (void *, size_t) ATTRIBUTE_RETURNS_NONNULL;
308
309/* Allocate memory without fail and set it to zero.  This works like
310   xmalloc.  */
311
312extern void *xcalloc (size_t, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL;
313
314/* Copy a string into a memory buffer without fail.  */
315
316extern char *xstrdup (const char *) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL;
317
318/* Copy at most N characters from string into a buffer without fail.  */
319
320extern char *xstrndup (const char *, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL;
321
322/* Copy an existing memory buffer to a new memory buffer without fail.  */
323
324extern void *xmemdup (const void *, size_t, size_t) ATTRIBUTE_MALLOC ATTRIBUTE_RETURNS_NONNULL;
325
326/* Physical memory routines.  Return values are in BYTES.  */
327extern double physmem_total (void);
328extern double physmem_available (void);
329
330/* Compute the 32-bit CRC of a block of memory.  */
331extern unsigned int xcrc32 (const unsigned char *, int, unsigned int);
332
333/* These macros provide a K&R/C89/C++-friendly way of allocating structures
334   with nice encapsulation.  The XDELETE*() macros are technically
335   superfluous, but provided here for symmetry.  Using them consistently
336   makes it easier to update client code to use different allocators such
337   as new/delete and new[]/delete[].  */
338
339/* Scalar allocators.  */
340
341#define XALLOCA(T)              ((T *) alloca (sizeof (T)))
342#define XNEW(T)                 ((T *) xmalloc (sizeof (T)))
343#define XCNEW(T)                ((T *) xcalloc (1, sizeof (T)))
344#define XDUP(T, P)              ((T *) xmemdup ((P), sizeof (T), sizeof (T)))
345#define XDELETE(P)              free ((void*) (P))
346
347/* Array allocators.  */
348
349#define XALLOCAVEC(T, N)        ((T *) alloca (sizeof (T) * (N)))
350#define XNEWVEC(T, N)           ((T *) xmalloc (sizeof (T) * (N)))
351#define XCNEWVEC(T, N)          ((T *) xcalloc ((N), sizeof (T)))
352#define XDUPVEC(T, P, N)        ((T *) xmemdup ((P), sizeof (T) * (N), sizeof (T) * (N)))
353#define XRESIZEVEC(T, P, N)     ((T *) xrealloc ((void *) (P), sizeof (T) * (N)))
354#define XDELETEVEC(P)           free ((void*) (P))
355
356/* Allocators for variable-sized structures and raw buffers.  */
357
358#define XALLOCAVAR(T, S)        ((T *) alloca ((S)))
359#define XNEWVAR(T, S)           ((T *) xmalloc ((S)))
360#define XCNEWVAR(T, S)          ((T *) xcalloc (1, (S)))
361#define XDUPVAR(T, P, S1, S2)   ((T *) xmemdup ((P), (S1), (S2)))
362#define XRESIZEVAR(T, P, S)     ((T *) xrealloc ((P), (S)))
363
364/* Type-safe obstack allocator.  */
365
366#define XOBNEW(O, T)            ((T *) obstack_alloc ((O), sizeof (T)))
367#define XOBNEWVEC(O, T, N)      ((T *) obstack_alloc ((O), sizeof (T) * (N)))
368#define XOBNEWVAR(O, T, S)      ((T *) obstack_alloc ((O), (S)))
369#define XOBFINISH(O, T)         ((T) obstack_finish ((O)))
370
371/* hex character manipulation routines */
372
373#define _hex_array_size 256
374#define _hex_bad        99
375extern const unsigned char _hex_value[_hex_array_size];
376extern void hex_init (void);
377#define hex_p(c)        (hex_value (c) != _hex_bad)
378/* If you change this, note well: Some code relies on side effects in
379   the argument being performed exactly once.  */
380#define hex_value(c)    ((unsigned int) _hex_value[(unsigned char) (c)])
381
382/* Flags for pex_init.  These are bits to be or'ed together.  */
383
384/* Record subprocess times, if possible.  */
385#define PEX_RECORD_TIMES        0x1
386
387/* Use pipes for communication between processes, if possible.  */
388#define PEX_USE_PIPES           0x2
389
390/* Save files used for communication between processes.  */
391#define PEX_SAVE_TEMPS          0x4
392
393/* Prepare to execute one or more programs, with standard output of
394   each program fed to standard input of the next.
395   FLAGS        As above.
396   PNAME        The name of the program to report in error messages.
397   TEMPBASE     A base name to use for temporary files; may be NULL to
398                use a random name.
399   Returns NULL on error.  */
400
401extern struct pex_obj *pex_init (int flags, const char *pname,
402                                 const char *tempbase) ATTRIBUTE_RETURNS_NONNULL;
403
404/* Flags for pex_run.  These are bits to be or'ed together.  */
405
406/* Last program in pipeline.  Standard output of program goes to
407   OUTNAME, or, if OUTNAME is NULL, to standard output of caller.  Do
408   not set this if you want to call pex_read_output.  After this is
409   set, pex_run may no longer be called with the same struct
410   pex_obj.  */
411#define PEX_LAST                0x1
412
413/* Search for program in executable search path.  */
414#define PEX_SEARCH              0x2
415
416/* OUTNAME is a suffix.  */
417#define PEX_SUFFIX              0x4
418
419/* Send program's standard error to standard output.  */
420#define PEX_STDERR_TO_STDOUT    0x8
421
422/* Input file should be opened in binary mode.  This flag is ignored
423   on Unix.  */
424#define PEX_BINARY_INPUT        0x10
425
426/* Output file should be opened in binary mode.  This flag is ignored
427   on Unix.  For proper behaviour PEX_BINARY_INPUT and
428   PEX_BINARY_OUTPUT have to match appropriately--i.e., a call using
429   PEX_BINARY_OUTPUT should be followed by a call using
430   PEX_BINARY_INPUT.  */
431#define PEX_BINARY_OUTPUT       0x20
432
433/* Capture stderr to a pipe.  The output can be read by
434   calling pex_read_err and reading from the returned
435   FILE object.  This flag may be specified only for
436   the last program in a pipeline. 
437
438   This flag is supported only on Unix and Windows.  */
439#define PEX_STDERR_TO_PIPE      0x40
440
441/* Capture stderr in binary mode.  This flag is ignored
442   on Unix.  */
443#define PEX_BINARY_ERROR        0x80
444
445
446/* Execute one program.  Returns NULL on success.  On error returns an
447   error string (typically just the name of a system call); the error
448   string is statically allocated.
449
450   OBJ          Returned by pex_init.
451
452   FLAGS        As above.
453
454   EXECUTABLE   The program to execute.
455
456   ARGV         NULL terminated array of arguments to pass to the program.
457
458   OUTNAME      Sets the output file name as follows:
459
460                PEX_SUFFIX set (OUTNAME may not be NULL):
461                  TEMPBASE parameter to pex_init not NULL:
462                    Output file name is the concatenation of TEMPBASE
463                    and OUTNAME.
464                  TEMPBASE is NULL:
465                    Output file name is a random file name ending in
466                    OUTNAME.
467                PEX_SUFFIX not set:
468                  OUTNAME not NULL:
469                    Output file name is OUTNAME.
470                  OUTNAME NULL, TEMPBASE not NULL:
471                    Output file name is randomly chosen using
472                    TEMPBASE.
473                  OUTNAME NULL, TEMPBASE NULL:
474                    Output file name is randomly chosen.
475
476                If PEX_LAST is not set, the output file name is the
477                name to use for a temporary file holding stdout, if
478                any (there will not be a file if PEX_USE_PIPES is set
479                and the system supports pipes).  If a file is used, it
480                will be removed when no longer needed unless
481                PEX_SAVE_TEMPS is set.
482
483                If PEX_LAST is set, and OUTNAME is not NULL, standard
484                output is written to the output file name.  The file
485                will not be removed.  If PEX_LAST and PEX_SUFFIX are
486                both set, TEMPBASE may not be NULL.
487
488   ERRNAME      If not NULL, this is the name of a file to which
489                standard error is written.  If NULL, standard error of
490                the program is standard error of the caller.
491
492   ERR          On an error return, *ERR is set to an errno value, or
493                to 0 if there is no relevant errno.
494*/
495
496extern const char *pex_run (struct pex_obj *obj, int flags,
497                            const char *executable, char * const *argv,
498                            const char *outname, const char *errname,
499                            int *err);
500
501/* As for pex_run (), but takes an extra parameter to enable the
502   environment for the child process to be specified.
503
504   ENV          The environment for the child process, specified as
505                an array of character pointers.  Each element of the
506                array should point to a string of the form VAR=VALUE,
507                with the exception of the last element which must be
508                a null pointer.
509*/
510
511extern const char *pex_run_in_environment (struct pex_obj *obj, int flags,
512                                           const char *executable,
513                                           char * const *argv,
514                                           char * const *env,
515                                           const char *outname,
516                                           const char *errname, int *err);
517
518/* Return a stream for a temporary file to pass to the first program
519   in the pipeline as input.  The file name is chosen as for pex_run.
520   pex_run closes the file automatically; don't close it yourself.  */
521
522extern FILE *pex_input_file (struct pex_obj *obj, int flags,
523                             const char *in_name);
524
525/* Return a stream for a pipe connected to the standard input of the
526   first program in the pipeline.  You must have passed
527   `PEX_USE_PIPES' to `pex_init'.  Close the returned stream
528   yourself.  */
529
530extern FILE *pex_input_pipe (struct pex_obj *obj, int binary);
531
532/* Read the standard output of the last program to be executed.
533   pex_run can not be called after this.  BINARY should be non-zero if
534   the file should be opened in binary mode; this is ignored on Unix.
535   Returns NULL on error.  Don't call fclose on the returned FILE; it
536   will be closed by pex_free.  */
537
538extern FILE *pex_read_output (struct pex_obj *, int binary);
539
540/* Read the standard error of the last program to be executed.
541   pex_run can not be called after this.  BINARY should be non-zero if
542   the file should be opened in binary mode; this is ignored on Unix.
543   Returns NULL on error.  Don't call fclose on the returned FILE; it
544   will be closed by pex_free.  */
545
546extern FILE *pex_read_err (struct pex_obj *, int binary);
547
548/* Return exit status of all programs in VECTOR.  COUNT indicates the
549   size of VECTOR.  The status codes in the vector are in the order of
550   the calls to pex_run.  Returns 0 on error, 1 on success.  */
551
552extern int pex_get_status (struct pex_obj *, int count, int *vector);
553
554/* Return times of all programs in VECTOR.  COUNT indicates the size
555   of VECTOR.  struct pex_time is really just struct timeval, but that
556   is not portable to all systems.  Returns 0 on error, 1 on
557   success.  */
558
559struct pex_time
560{
561  unsigned long user_seconds;
562  unsigned long user_microseconds;
563  unsigned long system_seconds;
564  unsigned long system_microseconds;
565};
566
567extern int pex_get_times (struct pex_obj *, int count,
568                          struct pex_time *vector);
569
570/* Clean up a pex_obj.  If you have not called pex_get_times or
571   pex_get_status, this will try to kill the subprocesses.  */
572
573extern void pex_free (struct pex_obj *);
574
575/* Just execute one program.  Return value is as for pex_run.
576   FLAGS        Combination of PEX_SEARCH and PEX_STDERR_TO_STDOUT.
577   EXECUTABLE   As for pex_run.
578   ARGV         As for pex_run.
579   PNAME        As for pex_init.
580   OUTNAME      As for pex_run when PEX_LAST is set.
581   ERRNAME      As for pex_run.
582   STATUS       Set to exit status on success.
583   ERR          As for pex_run.
584*/
585
586extern const char *pex_one (int flags, const char *executable,
587                            char * const *argv, const char *pname,
588                            const char *outname, const char *errname,
589                            int *status, int *err);
590
591/* pexecute and pwait are the old pexecute interface, still here for
592   backward compatibility.  Don't use these for new code.  Instead,
593   use pex_init/pex_run/pex_get_status/pex_free, or pex_one.  */
594
595/* Definitions used by the pexecute routine.  */
596
597#define PEXECUTE_FIRST   1
598#define PEXECUTE_LAST    2
599#define PEXECUTE_ONE     (PEXECUTE_FIRST + PEXECUTE_LAST)
600#define PEXECUTE_SEARCH  4
601#define PEXECUTE_VERBOSE 8
602
603/* Execute a program.  */
604
605extern int pexecute (const char *, char * const *, const char *,
606                     const char *, char **, char **, int);
607
608/* Wait for pexecute to finish.  */
609
610extern int pwait (int, int *, int);
611
612#if !HAVE_DECL_ASPRINTF
613/* Like sprintf but provides a pointer to malloc'd storage, which must
614   be freed by the caller.  */
615
616extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
617#endif
618
619#if !HAVE_DECL_VASPRINTF
620/* Like vsprintf but provides a pointer to malloc'd storage, which
621   must be freed by the caller.  */
622
623extern int vasprintf (char **, const char *, va_list) ATTRIBUTE_PRINTF(2,0);
624#endif
625
626#if defined(HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
627/* Like sprintf but prints at most N characters.  */
628extern int snprintf (char *, size_t, const char *, ...) ATTRIBUTE_PRINTF_3;
629#endif
630
631#if defined(HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
632/* Like vsprintf but prints at most N characters.  */
633extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,0);
634#endif
635
636#if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP
637/* Compare version strings.  */
638extern int strverscmp (const char *, const char *);
639#endif
640
641/* Set the title of a process */
642extern void setproctitle (const char *name, ...);
643
644/* Increase stack limit if possible.  */
645extern void stack_limit_increase (unsigned long);
646
647#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
648
649/* Drastically simplified alloca configurator.  If we're using GCC,
650   we use __builtin_alloca; otherwise we use the C alloca.  The C
651   alloca is always available.  You can override GCC by defining
652   USE_C_ALLOCA yourself.  The canonical autoconf macro C_ALLOCA is
653   also set/unset as it is often used to indicate whether code needs
654   to call alloca(0).  */
655extern void *C_alloca (size_t) ATTRIBUTE_MALLOC;
656#undef alloca
657#if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA
658# define alloca(x) __builtin_alloca(x)
659# undef C_ALLOCA
660# define ASTRDUP(X) \
661  (__extension__ ({ const char *const libiberty_optr = (X); \
662   const unsigned long libiberty_len = strlen (libiberty_optr) + 1; \
663   char *const libiberty_nptr = (char *const) alloca (libiberty_len); \
664   (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len); }))
665#else
666# define alloca(x) C_alloca(x)
667# undef USE_C_ALLOCA
668# define USE_C_ALLOCA 1
669# undef C_ALLOCA
670# define C_ALLOCA 1
671extern const char *libiberty_optr;
672extern char *libiberty_nptr;
673extern unsigned long libiberty_len;
674# define ASTRDUP(X) \
675  (libiberty_optr = (X), \
676   libiberty_len = strlen (libiberty_optr) + 1, \
677   libiberty_nptr = (char *) alloca (libiberty_len), \
678   (char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len))
679#endif
680
681#ifdef __cplusplus
682}
683#endif
684
685
686#endif /* ! defined (LIBIBERTY_H) */
Note: See TracBrowser for help on using the repository browser.