source: trunk/src/kmk/make.h@ 1841

Last change on this file since 1841 was 1840, checked in by bird, 17 years ago

better? predictions can do bad stuff...

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1/* Miscellaneous global declarations and portability cruft for GNU Make.
2Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
31998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
4Foundation, Inc.
5This file is part of GNU Make.
6
7GNU Make is free software; you can redistribute it and/or modify it under the
8terms of the GNU General Public License as published by the Free Software
9Foundation; either version 2, or (at your option) any later version.
10
11GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
13A PARTICULAR PURPOSE. See the GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License along with
16GNU Make; see the file COPYING. If not, write to the Free Software
17Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */
18
19/* We use <config.h> instead of "config.h" so that a compilation
20 using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
21 (which it would do because make.h was found in $srcdir). */
22#include <config.h>
23#undef HAVE_CONFIG_H
24#define HAVE_CONFIG_H 1
25
26/* AIX requires this to be the first thing in the file. */
27#ifndef __GNUC__
28# if HAVE_ALLOCA_H
29# include <alloca.h>
30# else
31# ifdef _AIX
32 #pragma alloca
33# else
34# ifndef alloca /* predefined by HP cc +Olibcalls */
35char *alloca ();
36# endif
37# endif
38# endif
39#endif
40
41
42/* Specify we want GNU source code. This must be defined before any
43 system headers are included. */
44
45#define _GNU_SOURCE 1
46
47
48#ifdef CRAY
49/* This must happen before #include <signal.h> so
50 that the declaration therein is changed. */
51# define signal bsdsignal
52#endif
53
54/* If we're compiling for the dmalloc debugger, turn off string inlining. */
55#if defined(HAVE_DMALLOC_H) && defined(__GNUC__)
56# define __NO_STRING_INLINES
57#endif
58
59#include <sys/types.h>
60#include <sys/stat.h>
61#include <signal.h>
62#include <stdio.h>
63#include <ctype.h>
64#ifdef HAVE_SYS_TIMEB_H
65/* SCO 3.2 "devsys 4.2" has a prototype for `ftime' in <time.h> that bombs
66 unless <sys/timeb.h> has been included first. Does every system have a
67 <sys/timeb.h>? If any does not, configure should check for it. */
68# include <sys/timeb.h>
69#endif
70
71#if TIME_WITH_SYS_TIME
72# include <sys/time.h>
73# include <time.h>
74#else
75# if HAVE_SYS_TIME_H
76# include <sys/time.h>
77# else
78# include <time.h>
79# endif
80#endif
81
82#include <errno.h>
83
84#ifndef errno
85extern int errno;
86#endif
87
88#ifndef isblank
89# define isblank(c) ((c) == ' ' || (c) == '\t')
90#endif
91
92#ifdef HAVE_UNISTD_H
93# include <unistd.h>
94/* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get
95 POSIX.1 behavior with `cc -YPOSIX', which predefines POSIX itself! */
96# if defined (_POSIX_VERSION) && !defined (ultrix) && !defined (VMS)
97# define POSIX 1
98# endif
99#endif
100
101/* Some systems define _POSIX_VERSION but are not really POSIX.1. */
102#if (defined (butterfly) || defined (__arm) || (defined (__mips) && defined (_SYSTYPE_SVR3)) || (defined (sequent) && defined (i386)))
103# undef POSIX
104#endif
105
106#if !defined (POSIX) && defined (_AIX) && defined (_POSIX_SOURCE)
107# define POSIX 1
108#endif
109
110#ifndef RETSIGTYPE
111# define RETSIGTYPE void
112#endif
113
114#ifndef sigmask
115# define sigmask(sig) (1 << ((sig) - 1))
116#endif
117
118#ifndef HAVE_SA_RESTART
119# define SA_RESTART 0
120#endif
121
122#ifdef HAVE_LIMITS_H
123# include <limits.h>
124#endif
125#ifdef HAVE_SYS_PARAM_H
126# include <sys/param.h>
127#endif
128
129#ifndef PATH_MAX
130# ifndef POSIX
131# define PATH_MAX MAXPATHLEN
132# endif
133#endif
134#ifndef MAXPATHLEN
135# define MAXPATHLEN 1024
136#endif
137
138#ifdef PATH_MAX
139# define GET_PATH_MAX PATH_MAX
140# define PATH_VAR(var) char var[PATH_MAX]
141#else
142# define NEED_GET_PATH_MAX 1
143# define GET_PATH_MAX (get_path_max ())
144# define PATH_VAR(var) char *var = alloca (GET_PATH_MAX)
145unsigned int get_path_max (void);
146#endif
147
148#ifndef CHAR_BIT
149# define CHAR_BIT 8
150#endif
151
152#if defined(KMK) || defined(CONFIG_WITH_VALUE_LENGTH) || defined (VARIABLE_HASH)
153# ifdef _MSC_VER
154# define MY_INLINE _inline static
155# define MY_DBGBREAK __debugbreak()
156# elif defined(__GNUC__)
157# define MY_INLINE static __inline__
158# if defined(__i386__) || defined(__x86_64__)
159# define MY_DBGBREAK __asm__ __volatile__ ("int3")
160#else
161# define MY_DBGBREAK assert(0)
162# endif
163# else
164# define MY_INLINE static
165# define MY_DBGBREAK assert(0)
166# endif
167# ifndef NDEBUG
168# define MY_ASSERT_MSG(expr, printfargs) \
169 do { if (!(expr)) { printf printfargs; MY_DBGBREAK; } } while (0)
170# else
171# define MY_ASSERT_MSG(expr, printfargs) do { } while (0)
172# endif
173
174# ifdef __GNUC__
175# define MY_PREDICT_TRUE(expr) __builtin_expect(!!(expr), 1)
176# define MY_PREDICT_FALSE(expr) __builtin_expect(!!(expr), 0)
177# else
178# define MY_PREDICT_TRUE(expr) (expr)
179# define MY_PREDICT_FALSE(expr) (expr)
180# endif
181#endif
182
183/* Nonzero if the integer type T is signed. */
184#define INTEGER_TYPE_SIGNED(t) ((t) -1 < 0)
185
186/* The minimum and maximum values for the integer type T.
187 Use ~ (t) 0, not -1, for portability to 1's complement hosts. */
188#define INTEGER_TYPE_MINIMUM(t) \
189 (! INTEGER_TYPE_SIGNED (t) ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))
190#define INTEGER_TYPE_MAXIMUM(t) (~ (t) 0 - INTEGER_TYPE_MINIMUM (t))
191
192#ifndef CHAR_MAX
193# define CHAR_MAX INTEGER_TYPE_MAXIMUM (char)
194#endif
195
196#ifdef STAT_MACROS_BROKEN
197# ifdef S_ISREG
198# undef S_ISREG
199# endif
200# ifdef S_ISDIR
201# undef S_ISDIR
202# endif
203#endif /* STAT_MACROS_BROKEN. */
204
205#ifndef S_ISREG
206# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
207#endif
208#ifndef S_ISDIR
209# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
210#endif
211
212#ifdef VMS
213# include <types.h>
214# include <unixlib.h>
215# include <unixio.h>
216# include <perror.h>
217/* Needed to use alloca on VMS. */
218# include <builtins.h>
219#endif
220
221#ifndef __attribute__
222/* This feature is available in gcc versions 2.5 and later. */
223# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
224# define __attribute__(x)
225# endif
226/* The __-protected variants of `format' and `printf' attributes
227 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
228# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
229# define __format__ format
230# define __printf__ printf
231# endif
232#endif
233#define UNUSED __attribute__ ((unused))
234
235#if defined (STDC_HEADERS) || defined (__GNU_LIBRARY__)
236# include <stdlib.h>
237# include <string.h>
238# define ANSI_STRING 1
239#else /* No standard headers. */
240# ifdef HAVE_STRING_H
241# include <string.h>
242# define ANSI_STRING 1
243# else
244# include <strings.h>
245# endif
246# ifdef HAVE_MEMORY_H
247# include <memory.h>
248# endif
249# ifdef HAVE_STDLIB_H
250# include <stdlib.h>
251# else
252void *malloc (int);
253void *realloc (void *, int);
254void free (void *);
255
256void abort (void) __attribute__ ((noreturn));
257void exit (int) __attribute__ ((noreturn));
258# endif /* HAVE_STDLIB_H. */
259
260#endif /* Standard headers. */
261
262/* These should be in stdlib.h. Make sure we have them. */
263#ifndef EXIT_SUCCESS
264# define EXIT_SUCCESS 0
265#endif
266#ifndef EXIT_FAILURE
267# define EXIT_FAILURE 1
268#endif
269
270#ifndef ANSI_STRING
271
272/* SCO Xenix has a buggy macro definition in <string.h>. */
273#undef strerror
274#if !defined(__DECC)
275char *strerror (int errnum);
276#endif
277
278#endif /* !ANSI_STRING. */
279#undef ANSI_STRING
280
281#if HAVE_INTTYPES_H
282# include <inttypes.h>
283#endif
284#define FILE_TIMESTAMP uintmax_t
285
286#if !defined(HAVE_STRSIGNAL)
287char *strsignal (int signum);
288#endif
289
290/* ISDIGIT offers the following features:
291 - Its arg may be any int or unsigned int; it need not be an unsigned char.
292 - It's guaranteed to evaluate its argument exactly once.
293 NOTE! Make relies on this behavior, don't change it!
294 - It's typically faster.
295 POSIX 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
296 only '0' through '9' are digits. Prefer ISDIGIT to isdigit() unless
297 it's important to use the locale's definition of `digit' even when the
298 host does not conform to POSIX. */
299#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
300
301#ifndef iAPX286
302# define streq(a, b) \
303 ((a) == (b) || \
304 (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1))))
305# ifdef HAVE_CASE_INSENSITIVE_FS
306# define strieq(a, b) \
307 ((a) == (b) \
308 || (tolower((unsigned char)*(a)) == tolower((unsigned char)*(b)) \
309 && (*(a) == '\0' || !strcasecmp ((a) + 1, (b) + 1))))
310# else
311# define strieq(a, b) streq(a, b)
312# endif
313#else
314/* Buggy compiler can't handle this. */
315# define streq(a, b) (strcmp ((a), (b)) == 0)
316# define strieq(a, b) (strcmp ((a), (b)) == 0)
317#endif
318#define strneq(a, b, l) (strncmp ((a), (b), (l)) == 0)
319
320#if (defined(__GNUC__) || defined(ENUM_BITFIELDS)) && !defined(NO_ENUM_BITFIELDS)
321# define ENUM_BITFIELD(bits) :bits
322#else
323# define ENUM_BITFIELD(bits)
324#endif
325
326/* Handle gettext and locales. */
327
328#if HAVE_LOCALE_H
329# include <locale.h>
330#else
331# define setlocale(category, locale)
332#endif
333
334#include <gettext.h>
335
336#define _(msgid) gettext (msgid)
337#define N_(msgid) gettext_noop (msgid)
338#define S_(msg1,msg2,num) ngettext (msg1,msg2,num)
339
340/* Handle other OSs. */
341#ifndef PATH_SEPARATOR_CHAR
342# if defined(HAVE_DOS_PATHS)
343# define PATH_SEPARATOR_CHAR ';'
344# elif defined(VMS)
345# define PATH_SEPARATOR_CHAR ','
346# else
347# define PATH_SEPARATOR_CHAR ':'
348# endif
349#endif
350
351/* This is needed for getcwd() and chdir(), on some W32 systems. */
352#if defined(HAVE_DIRECT_H)
353# include <direct.h>
354#endif
355
356#ifdef WINDOWS32
357# include <fcntl.h>
358# include <malloc.h>
359# define pipe(_p) _pipe((_p), 512, O_BINARY)
360# define kill(_pid,_sig) w32_kill((_pid),(_sig))
361
362void sync_Path_environment (void);
363int w32_kill (int pid, int sig); /* bird kill -> w32_kill - macro acquired () on the args. */
364char *end_of_token_w32 (const char *s, char stopchar);
365int find_and_set_default_shell (const char *token);
366
367/* indicates whether or not we have Bourne shell */
368extern int no_default_sh_exe;
369
370/* is default_shell unixy? */
371extern int unixy_shell;
372#endif /* WINDOWS32 */
373
374struct floc
375 {
376 const char *filenm;
377 unsigned long lineno;
378 };
379#define NILF ((struct floc *)0)
380
381#define STRING_SIZE_TUPLE(_s) (_s), (sizeof (_s)-1)
382
383
384
385/* We have to have stdarg.h or varargs.h AND v*printf or doprnt to use
386 variadic versions of these functions. */
387
388#if HAVE_STDARG_H || HAVE_VARARGS_H
389# if HAVE_VPRINTF || HAVE_DOPRNT
390# define USE_VARIADIC 1
391# endif
392#endif
393
394#if HAVE_ANSI_COMPILER && USE_VARIADIC && HAVE_STDARG_H
395void message (int prefix, const char *fmt, ...)
396 __attribute__ ((__format__ (__printf__, 2, 3)));
397void error (const struct floc *flocp, const char *fmt, ...)
398 __attribute__ ((__format__ (__printf__, 2, 3)));
399void fatal (const struct floc *flocp, const char *fmt, ...)
400 __attribute__ ((noreturn, __format__ (__printf__, 2, 3)));
401#else
402void message ();
403void error ();
404void fatal ();
405#endif
406
407void die (int) __attribute__ ((noreturn));
408void log_working_directory (int);
409void pfatal_with_name (const char *) __attribute__ ((noreturn));
410void perror_with_name (const char *, const char *);
411char *savestring (const char *, unsigned int);
412char *concat (const char *, const char *, const char *);
413void *xmalloc (unsigned int);
414void *xrealloc (void *, unsigned int);
415char *xstrdup (const char *);
416char *find_next_token (const char **, unsigned int *);
417char *next_token (const char *);
418char *end_of_token (const char *);
419#ifndef CONFIG_WITH_VALUE_LENGTH
420void collapse_continuations (char *);
421#else
422char *collapse_continuations (char *, unsigned int);
423#endif
424#ifdef CONFIG_WITH_OPTIMIZATION_HACKS /* memchr is usually compiler intrinsic, thus faster. */
425# define lindex(s, limit, c) ((char *)memchr((s), (c), (limit) - (s)))
426#else
427char *lindex (const char *, const char *, int);
428#endif
429int alpha_compare (const void *, const void *);
430void print_spaces (unsigned int);
431char *find_percent (char *);
432const char *find_percent_cached (const char **);
433FILE *open_tmpfile (char **, const char *);
434
435#ifndef NO_ARCHIVES
436int ar_name (const char *);
437void ar_parse_name (const char *, char **, char **);
438int ar_touch (const char *);
439time_t ar_member_date (const char *);
440
441typedef long int (*ar_member_func_t) (int desc, const char *mem, int truncated,
442 long int hdrpos, long int datapos,
443 long int size, long int date, int uid,
444 int gid, int mode, const void *arg);
445
446long int ar_scan (const char *archive, ar_member_func_t function, const void *arg);
447int ar_name_equal (const char *name, const char *mem, int truncated);
448#ifndef VMS
449int ar_member_touch (const char *arname, const char *memname);
450#endif
451#endif
452
453int dir_file_exists_p (const char *, const char *);
454int file_exists_p (const char *);
455int file_impossible_p (const char *);
456void file_impossible (const char *);
457const char *dir_name (const char *);
458void hash_init_directories (void);
459
460void define_default_variables (void);
461void set_default_suffixes (void);
462void install_default_suffix_rules (void);
463void install_default_implicit_rules (void);
464
465void build_vpath_lists (void);
466void construct_vpath_list (char *pattern, char *dirpath);
467const char *vpath_search (const char *file, FILE_TIMESTAMP *mtime_ptr);
468int gpath_search (const char *file, unsigned int len);
469
470void construct_include_path (const char **arg_dirs);
471
472void user_access (void);
473void make_access (void);
474void child_access (void);
475
476void close_stdout (void);
477
478char *strip_whitespace (const char **begpp, const char **endpp);
479
480/* String caching */
481void strcache_init (void);
482void strcache_print_stats (const char *prefix);
483int strcache_iscached (const char *str);
484const char *strcache_add (const char *str);
485const char *strcache_add_len (const char *str, int len);
486int strcache_setbufsize (int size);
487
488#ifdef HAVE_VFORK_H
489# include <vfork.h>
490#endif
491
492/* We omit these declarations on non-POSIX systems which define _POSIX_VERSION,
493 because such systems often declare them in header files anyway. */
494
495#if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION) && !defined(WINDOWS32)
496
497long int atol ();
498# ifndef VMS
499long int lseek ();
500# endif
501
502#endif /* Not GNU C library or POSIX. */
503
504#ifdef HAVE_GETCWD
505# if !defined(VMS) && !defined(__DECC) && !defined(_MSC_VER) /* bird: MSC */
506char *getcwd ();
507# endif
508#else
509char *getwd ();
510# define getcwd(buf, len) getwd (buf)
511#endif
512
513#if !HAVE_STRCASECMP
514# if HAVE_STRICMP
515# define strcasecmp stricmp
516# elif HAVE_STRCMPI
517# define strcasecmp strcmpi
518# else
519/* Create our own, in misc.c */
520int strcasecmp (const char *s1, const char *s2);
521# endif
522#endif
523
524extern const struct floc *reading_file;
525extern const struct floc **expanding_var;
526
527#if !defined(_MSC_VER) /* bird */
528extern char **environ;
529#endif
530
531extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag;
532extern int print_data_base_flag, question_flag, touch_flag, always_make_flag;
533extern int env_overrides, no_builtin_rules_flag, no_builtin_variables_flag;
534extern int print_version_flag, print_directory_flag, check_symlink_flag;
535extern int warn_undefined_variables_flag, posix_pedantic, not_parallel;
536extern int second_expansion, clock_skew_detected, rebuilding_makefiles;
537#ifdef CONFIG_WITH_2ND_TARGET_EXPANSION
538extern int second_target_expansion;
539#endif
540#ifdef CONFIG_PRETTY_COMMAND_PRINTING
541extern int pretty_command_printing;
542#endif
543#ifdef CONFIG_WITH_MAKE_STATS
544extern int make_expensive_statistics;
545#endif
546
547
548/* can we run commands via 'sh -c xxx' or must we use batch files? */
549extern int batch_mode_shell;
550
551extern char cmd_prefix;
552
553extern unsigned int job_slots;
554extern int job_fds[2];
555extern int job_rfd;
556#ifndef NO_FLOAT
557extern double max_load_average;
558#else
559extern int max_load_average;
560#endif
561
562extern char *program;
563extern char *starting_directory;
564extern unsigned int makelevel;
565extern char *version_string, *remote_description, *make_host;
566
567extern unsigned int commands_started;
568
569extern int handling_fatal_signal;
570
571
572#ifndef MIN
573#define MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
574#endif
575#ifndef MAX
576#define MAX(_a,_b) ((_a)>(_b)?(_a):(_b))
577#endif
578
579#ifdef VMS
580# define MAKE_SUCCESS 1
581# define MAKE_TROUBLE 2
582# define MAKE_FAILURE 3
583#else
584# define MAKE_SUCCESS 0
585# define MAKE_TROUBLE 1
586# define MAKE_FAILURE 2
587#endif
588
589/* Set up heap debugging library dmalloc. */
590
591#ifdef HAVE_DMALLOC_H
592#include <dmalloc.h>
593#endif
594
595#ifndef initialize_main
596# ifdef __EMX__
597# define initialize_main(pargc, pargv) \
598 { _wildcard(pargc, pargv); _response(pargc, pargv); }
599# else
600# define initialize_main(pargc, pargv)
601# endif
602#endif
603
604#ifdef __EMX__
605# if !defined chdir
606# define chdir _chdir2
607# endif
608# if !defined getcwd
609# define getcwd _getcwd2
610# endif
611
612/* NO_CHDIR2 causes make not to use _chdir2() and _getcwd2() instead of
613 chdir() and getcwd(). This avoids some error messages for the
614 make testsuite but restricts the drive letter support. */
615# ifdef NO_CHDIR2
616# warning NO_CHDIR2: usage of drive letters restricted
617# undef chdir
618# undef getcwd
619# endif
620#endif
621
622#ifndef initialize_main
623# define initialize_main(pargc, pargv)
624#endif
625
626
627/* Some systems (like Solaris, PTX, etc.) do not support the SA_RESTART flag
628 properly according to POSIX. So, we try to wrap common system calls with
629 checks for EINTR. Note that there are still plenty of system calls that
630 can fail with EINTR but this, reportedly, gets the vast majority of
631 failure cases. If you still experience failures you'll need to either get
632 a system where SA_RESTART works, or you need to avoid -j. */
633
634#define EINTRLOOP(_v,_c) while (((_v)=_c)==-1 && errno==EINTR)
635
636/* While system calls that return integers are pretty consistent about
637 returning -1 on failure and setting errno in that case, functions that
638 return pointers are not always so well behaved. Sometimes they return
639 NULL for expected behavior: one good example is readdir() which returns
640 NULL at the end of the directory--and _doesn't_ reset errno. So, we have
641 to do it ourselves here. */
642
643#define ENULLLOOP(_v,_c) do { errno = 0; (_v) = _c; } \
644 while((_v)==0 && errno==EINTR)
645
646
647#if defined(__EMX__) && defined(CONFIG_WITH_OPTIMIZATION_HACKS) /* bird: saves 40-100ms on libc. */
648static inline void *__my_rawmemchr (const void *__s, int __c);
649#undef strchr
650#define strchr(s, c) \
651 (__extension__ (__builtin_constant_p (c) \
652 ? ((c) == '\0' \
653 ? (char *) __my_rawmemchr ((s), (c)) \
654 : __my_strchr_c ((s), ((c) & 0xff) << 8)) \
655 : __my_strchr_g ((s), (c))))
656static inline char *__my_strchr_c (const char *__s, int __c)
657{
658 register unsigned long int __d0;
659 register char *__res;
660 __asm__ __volatile__
661 ("1:\n\t"
662 "movb (%0),%%al\n\t"
663 "cmpb %%ah,%%al\n\t"
664 "je 2f\n\t"
665 "leal 1(%0),%0\n\t"
666 "testb %%al,%%al\n\t"
667 "jne 1b\n\t"
668 "xorl %0,%0\n"
669 "2:"
670 : "=r" (__res), "=&a" (__d0)
671 : "0" (__s), "1" (__c),
672 "m" ( *(struct { char __x[0xfffffff]; } *)__s)
673 : "cc");
674 return __res;
675}
676
677static inline char *__my_strchr_g (__const char *__s, int __c)
678{
679 register unsigned long int __d0;
680 register char *__res;
681 __asm__ __volatile__
682 ("movb %%al,%%ah\n"
683 "1:\n\t"
684 "movb (%0),%%al\n\t"
685 "cmpb %%ah,%%al\n\t"
686 "je 2f\n\t"
687 "leal 1(%0),%0\n\t"
688 "testb %%al,%%al\n\t"
689 "jne 1b\n\t"
690 "xorl %0,%0\n"
691 "2:"
692 : "=r" (__res), "=&a" (__d0)
693 : "0" (__s), "1" (__c),
694 "m" ( *(struct { char __x[0xfffffff]; } *)__s)
695 : "cc");
696 return __res;
697}
698
699static inline void *__my_rawmemchr (const void *__s, int __c)
700{
701 register unsigned long int __d0;
702 register unsigned char *__res;
703 __asm__ __volatile__
704 ("cld\n\t"
705 "repne; scasb\n\t"
706 : "=D" (__res), "=&c" (__d0)
707 : "a" (__c), "0" (__s), "1" (0xffffffff),
708 "m" ( *(struct { char __x[0xfffffff]; } *)__s)
709 : "cc");
710 return __res - 1;
711}
712
713#undef memchr
714#define memchr(a,b,c) __my_memchr((a),(b),(c))
715static inline void *__my_memchr (__const void *__s, int __c, size_t __n)
716{
717 register unsigned long int __d0;
718 register unsigned char *__res;
719 if (__n == 0)
720 return NULL;
721 __asm__ __volatile__
722 ("repne; scasb\n\t"
723 "je 1f\n\t"
724 "movl $1,%0\n"
725 "1:"
726 : "=D" (__res), "=&c" (__d0)
727 : "a" (__c), "0" (__s), "1" (__n),
728 "m" ( *(struct { __extension__ char __x[__n]; } *)__s)
729 : "cc");
730 return __res - 1;
731}
732
733#endif /* __EMX__ (bird) */
734
735#ifdef CONFIG_WITH_MAKE_STATS
736extern long make_stats_allocations;
737extern unsigned long make_stats_allocated;
738extern unsigned long make_stats_allocated_sum;
739extern unsigned long make_stats_ht_lookups;
740extern unsigned long make_stats_ht_collisions;
741
742# ifdef __APPLE__
743# include <malloc/malloc.h>
744# define SIZE_OF_HEAP_BLOCK(ptr) malloc_size(ptr)
745
746# elif defined(__linux__) /* glibc */
747# include <malloc.h>
748# define SIZE_OF_HEAP_BLOCK(ptr) malloc_usable_size(ptr)
749
750# elif defined(_MSC_VER) || defined(__OS2__)
751# define SIZE_OF_HEAP_BLOCK(ptr) _msize(ptr)
752
753# else
754# include <stdlib.h>
755# define SIZE_OF_HEAP_BLOCK(ptr) 0
756#endif
757
758# if defined(CONFIG_WITH_MAKE_STATS) && !defined(ELECTRIC_HEAP)
759# define free xfree
760extern void xfree (void *);
761# endif
762
763#endif
764
765#ifdef CONFIG_WITH_IF_CONDITIONALS
766extern int expr_eval_if_conditionals(char *line, const struct floc *flocp);
767extern char *expr_eval_to_string(char *o, char *expr);
768#endif
769
770#ifdef KMK
771extern char *abspath(const char *name, char *apath);
772extern char *func_breakpoint(char *o, char **argv, const char *funcname);
773#endif
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