diff options
Diffstat (limited to 'libc/misc')
| -rw-r--r-- | libc/misc/gnu/obstack.c | 422 |
1 files changed, 123 insertions, 299 deletions
diff --git a/libc/misc/gnu/obstack.c b/libc/misc/gnu/obstack.c index 8ed3e8ac0..239146383 100644 --- a/libc/misc/gnu/obstack.c +++ b/libc/misc/gnu/obstack.c @@ -1,7 +1,7 @@ /* obstack.c - subroutines used implicitly by object stack macros - Copyright (C) 1988-1994,96,97,98,99,2000,2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. Its master source is NOT part of - the C library, however. The master source lives in /gd/gnu/lib. + Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998, + 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -15,19 +15,30 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ + Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. */ -/* Make uClibc lie about being glibc. */ -#define __FORCE_GLIBC 1 - -#include <locale.h> #ifdef HAVE_CONFIG_H # include <config.h> #endif -#include <obstack.h> +#ifdef _LIBC +# include <obstack.h> +#ifndef __UCLIBC__ +# include <shlib-compat.h> +#else +# define HAVE_INTTYPES_H 1 +# define HAVE_STDINT_H 1 +# define SHLIB_COMPAT(x,y,z) 0 +# undef libc_hidden_def +# define libc_hidden_def(x) +# undef strong_alias +# define strong_alias(x,y) +#endif +#else +# include "obstack.h" +#endif /* NOTE BEFORE MODIFYING THIS FILE: This version number must be incremented whenever callers compiled using an old obstack.h can no @@ -51,28 +62,38 @@ # endif #endif -#if (defined _LIBC && defined USE_IN_LIBIO) || defined __UCLIBC_HAS_WCHAR__ -# include <wchar.h> -#endif +#include <stddef.h> #ifndef ELIDE_CODE -# if defined __STDC__ && __STDC__ -# define POINTER void * -# else -# define POINTER char * +# if HAVE_INTTYPES_H +# include <inttypes.h> +# endif +# if HAVE_STDINT_H || defined _LIBC +# include <stdint.h> # endif /* Determine default alignment. */ -struct fooalign {char x; double d;}; -# define DEFAULT_ALIGNMENT \ - ((PTR_INT_TYPE) ((char *) &((struct fooalign *) 0)->d - (char *) 0)) +union fooround +{ + uintmax_t i; + long double d; + void *p; +}; +struct fooalign +{ + char c; + union fooround u; +}; /* If malloc were really smart, it would round addresses to DEFAULT_ALIGNMENT. But in fact it might be less smart and round addresses to as much as DEFAULT_ROUNDING. So we prepare for it to do that. */ -union fooround {long x; double d;}; -# define DEFAULT_ROUNDING (sizeof (union fooround)) +enum + { + DEFAULT_ALIGNMENT = offsetof (struct fooalign, u), + DEFAULT_ROUNDING = sizeof (union fooround) + }; /* When we copy a long block of data, this is the unit to do it with. On some machines, copying successive ints does not work; @@ -89,36 +110,29 @@ union fooround {long x; double d;}; abort gracefully or use longjump - but shouldn't return. This variable by default points to the internal function `print_and_abort'. */ -# if defined __STDC__ && __STDC__ static void print_and_abort (void); -void (*obstack_alloc_failed_handler) (void) = print_and_abort; -# else -static void print_and_abort (); -void (*obstack_alloc_failed_handler) () = print_and_abort; -# endif - +static void (*__obstack_alloc_failed_handler) (void) = print_and_abort; +weak_alias(__obstack_alloc_failed_handler,obstack_alloc_failed_handler) /* Exit value used when `print_and_abort' is used. */ -# if defined __GNU_LIBRARY__ || defined HAVE_STDLIB_H -# include <stdlib.h> -# endif -# ifndef EXIT_FAILURE -# define EXIT_FAILURE 1 +# include <stdlib.h> +# ifdef _LIBC +static int __obstack_exit_failure = EXIT_FAILURE; +weak_alias(__obstack_exit_failure,obstack_exit_failure) +# else +# include "exitfail.h" +# define __obstack_exit_failure exit_failure # endif -libc_hidden_proto(fprintf) -libc_hidden_proto(abort) -libc_hidden_proto(exit) -#ifdef __UCLIBC_HAS_WCHAR__ -libc_hidden_proto(fwprintf) -#endif - -int obstack_exit_failure = EXIT_FAILURE; - -/* The non-GNU-C macros copy the obstack into this global variable - to avoid multiple evaluation. */ - -struct obstack *_obstack; +# ifdef _LIBC +# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) +/* A looong time ago (before 1994, anyway; we're not sure) this global variable + was used by non-GNU-C macros to avoid multiple evaluation. The GNU C + library still exports it because somebody might use it. */ +struct obstack *_obstack_compat; +compat_symbol (libc, _obstack_compat, _obstack, GLIBC_2_0); +# endif +# endif /* Define a macro that either calls functions with the traditional malloc/free calling interface, or calls functions with the mmalloc/mfree interface @@ -126,33 +140,18 @@ struct obstack *_obstack; For free, do not use ?:, since some compilers, like the MIPS compilers, do not allow (expr) ? void : void. */ -# if defined __STDC__ && __STDC__ -# define CALL_CHUNKFUN(h, size) \ +# define CALL_CHUNKFUN(h, size) \ (((h) -> use_extra_arg) \ ? (*(h)->chunkfun) ((h)->extra_arg, (size)) \ : (*(struct _obstack_chunk *(*) (long)) (h)->chunkfun) ((size))) -# define CALL_FREEFUN(h, old_chunk) \ +# define CALL_FREEFUN(h, old_chunk) \ do { \ if ((h) -> use_extra_arg) \ (*(h)->freefun) ((h)->extra_arg, (old_chunk)); \ else \ (*(void (*) (void *)) (h)->freefun) ((old_chunk)); \ } while (0) -# else -# define CALL_CHUNKFUN(h, size) \ - (((h) -> use_extra_arg) \ - ? (*(h)->chunkfun) ((h)->extra_arg, (size)) \ - : (*(struct _obstack_chunk *(*) ()) (h)->chunkfun) ((size))) - -# define CALL_FREEFUN(h, old_chunk) \ - do { \ - if ((h) -> use_extra_arg) \ - (*(h)->freefun) ((h)->extra_arg, (old_chunk)); \ - else \ - (*(void (*) ()) (h)->freefun) ((old_chunk)); \ - } while (0) -# endif /* Initialize an obstack H for use. Specify chunk size SIZE (0 means default). @@ -164,23 +163,15 @@ struct obstack *_obstack; allocation fails. */ int -_obstack_begin ( - struct obstack *h, - int size, - int alignment, -# if defined __STDC__ && __STDC__ - POINTER (*chunkfun) (long), - void (*freefun) (void *) -# else - POINTER (*chunkfun) (), - void (*freefun) () -# endif - ) +_obstack_begin (struct obstack *h, + int size, int alignment, + void *(*chunkfun) (long), + void (*freefun) (void *)) { register struct _obstack_chunk *chunk; /* points to new chunk */ if (alignment == 0) - alignment = (int) DEFAULT_ALIGNMENT; + alignment = DEFAULT_ALIGNMENT; if (size == 0) /* Default size is what GNU malloc can fit in a 4096-byte block. */ { @@ -198,21 +189,17 @@ _obstack_begin ( size = 4096 - extra; } -# if defined __STDC__ && __STDC__ h->chunkfun = (struct _obstack_chunk * (*)(void *, long)) chunkfun; h->freefun = (void (*) (void *, struct _obstack_chunk *)) freefun; -# else - h->chunkfun = (struct _obstack_chunk * (*)()) chunkfun; - h->freefun = freefun; -# endif h->chunk_size = size; h->alignment_mask = alignment - 1; h->use_extra_arg = 0; chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size); if (!chunk) - (*obstack_alloc_failed_handler) (); - h->next_free = h->object_base = chunk->contents; + (*__obstack_alloc_failed_handler) (); + h->next_free = h->object_base = __PTR_ALIGN ((char *) chunk, chunk->contents, + alignment - 1); h->chunk_limit = chunk->limit = (char *) chunk + h->chunk_size; chunk->prev = 0; @@ -223,23 +210,15 @@ _obstack_begin ( } int -_obstack_begin_1 ( - struct obstack *h, - int size, - int alignment, -# if defined __STDC__ && __STDC__ - POINTER (*chunkfun) (POINTER, long), - void (*freefun) (POINTER, POINTER), -# else - POINTER (*chunkfun) (), - void (*freefun) (), -# endif - POINTER arg) +_obstack_begin_1 (struct obstack *h, int size, int alignment, + void *(*chunkfun) (void *, long), + void (*freefun) (void *, void *), + void *arg) { register struct _obstack_chunk *chunk; /* points to new chunk */ if (alignment == 0) - alignment = (int) DEFAULT_ALIGNMENT; + alignment = DEFAULT_ALIGNMENT; if (size == 0) /* Default size is what GNU malloc can fit in a 4096-byte block. */ { @@ -257,13 +236,8 @@ _obstack_begin_1 ( size = 4096 - extra; } -# if defined __STDC__ && __STDC__ h->chunkfun = (struct _obstack_chunk * (*)(void *,long)) chunkfun; h->freefun = (void (*) (void *, struct _obstack_chunk *)) freefun; -# else - h->chunkfun = (struct _obstack_chunk * (*)()) chunkfun; - h->freefun = freefun; -# endif h->chunk_size = size; h->alignment_mask = alignment - 1; h->extra_arg = arg; @@ -271,8 +245,9 @@ _obstack_begin_1 ( chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size); if (!chunk) - (*obstack_alloc_failed_handler) (); - h->next_free = h->object_base = chunk->contents; + (*__obstack_alloc_failed_handler) (); + h->next_free = h->object_base = __PTR_ALIGN ((char *) chunk, chunk->contents, + alignment - 1); h->chunk_limit = chunk->limit = (char *) chunk + h->chunk_size; chunk->prev = 0; @@ -289,9 +264,7 @@ _obstack_begin_1 ( to the beginning of the new one. */ void -_obstack_newchunk ( - struct obstack *h, - int length) +_obstack_newchunk (struct obstack *h, int length) { register struct _obstack_chunk *old_chunk = h->chunk; register struct _obstack_chunk *new_chunk; @@ -309,15 +282,14 @@ _obstack_newchunk ( /* Allocate and initialize the new chunk. */ new_chunk = CALL_CHUNKFUN (h, new_size); if (!new_chunk) - (*obstack_alloc_failed_handler) (); + (*__obstack_alloc_failed_handler) (); h->chunk = new_chunk; new_chunk->prev = old_chunk; new_chunk->limit = h->chunk_limit = (char *) new_chunk + new_size; /* Compute an aligned object_base in the new chunk */ object_base = - __INT_TO_PTR ((__PTR_TO_INT (new_chunk->contents) + h->alignment_mask) - & ~ (h->alignment_mask)); + __PTR_ALIGN ((char *) new_chunk, new_chunk->contents, h->alignment_mask); /* Move the existing object to the new chunk. Word at a time is fast and is safe if the object @@ -342,7 +314,10 @@ _obstack_newchunk ( /* If the object just copied was the only data in OLD_CHUNK, free that chunk and remove it from the chain. But not if that chunk might contain an empty object. */ - if (h->object_base == old_chunk->contents && ! h->maybe_empty_object) + if (! h->maybe_empty_object + && (h->object_base + == __PTR_ALIGN ((char *) old_chunk, old_chunk->contents, + h->alignment_mask))) { new_chunk->prev = old_chunk->prev; CALL_FREEFUN (h, old_chunk); @@ -353,21 +328,20 @@ _obstack_newchunk ( /* The new chunk certainly contains no empty object yet. */ h->maybe_empty_object = 0; } +# ifdef _LIBC +libc_hidden_def (_obstack_newchunk) +# endif /* Return nonzero if object OBJ has been allocated from obstack H. This is here for debugging. If you use it in a program, you are probably losing. */ -# if defined __STDC__ && __STDC__ /* Suppress -Wmissing-prototypes warning. We don't want to declare this in obstack.h because it is just for debugging. */ -int _obstack_allocated_p (struct obstack *h, POINTER obj); -# endif +int _obstack_allocated_p (struct obstack *h, void *obj); int -_obstack_allocated_p ( - struct obstack *h, - POINTER obj) +_obstack_allocated_p (struct obstack *h, void *obj) { register struct _obstack_chunk *lp; /* below addr of any objects in this chunk */ register struct _obstack_chunk *plp; /* point to previous chunk if any */ @@ -376,7 +350,7 @@ _obstack_allocated_p ( /* We use >= rather than > since the object cannot be exactly at the beginning of the chunk but might be an empty object exactly at the end of an adjacent chunk. */ - while (lp != 0 && ((POINTER) lp >= obj || (POINTER) (lp)->limit < obj)) + while (lp != 0 && ((void *) lp >= obj || (void *) (lp)->limit < obj)) { plp = lp->prev; lp = plp; @@ -389,13 +363,8 @@ _obstack_allocated_p ( # undef obstack_free -/* This function has two names with identical definitions. - This is the first one, called from non-ANSI code. */ - void -_obstack_free ( - struct obstack *h, - POINTER obj) +obstack_free (struct obstack *h, void *obj) { register struct _obstack_chunk *lp; /* below addr of any objects in this chunk */ register struct _obstack_chunk *plp; /* point to previous chunk if any */ @@ -404,7 +373,7 @@ _obstack_free ( /* We use >= because there cannot be an object at the beginning of a chunk. But there can be an empty object at that address at the end of another chunk. */ - while (lp != 0 && ((POINTER) lp >= obj || (POINTER) (lp)->limit < obj)) + while (lp != 0 && ((void *) lp >= obj || (void *) (lp)->limit < obj)) { plp = lp->prev; CALL_FREEFUN (h, lp); @@ -424,43 +393,14 @@ _obstack_free ( abort (); } -/* This function is used from ANSI code. */ - -void -obstack_free ( - struct obstack *h, - POINTER obj) -{ - register struct _obstack_chunk *lp; /* below addr of any objects in this chunk */ - register struct _obstack_chunk *plp; /* point to previous chunk if any */ - - lp = h->chunk; - /* We use >= because there cannot be an object at the beginning of a chunk. - But there can be an empty object at that address - at the end of another chunk. */ - while (lp != 0 && ((POINTER) lp >= obj || (POINTER) (lp)->limit < obj)) - { - plp = lp->prev; - CALL_FREEFUN (h, lp); - lp = plp; - /* If we switch chunks, we can't tell whether the new current - chunk contains an empty object, so assume that it may. */ - h->maybe_empty_object = 1; - } - if (lp) - { - h->object_base = h->next_free = (char *) (obj); - h->chunk_limit = lp->limit; - h->chunk = lp; - } - else if (obj != 0) - /* obj is not in any of the chunks! */ - abort (); -} +# ifdef _LIBC +/* Older versions of libc used a function _obstack_free intended to be + called by non-GCC compilers. */ +strong_alias (obstack_free, _obstack_free) +# endif int -_obstack_memory_used ( - struct obstack *h) +_obstack_memory_used (struct obstack *h) { register struct _obstack_chunk* lp; register int nbytes = 0; @@ -473,20 +413,27 @@ _obstack_memory_used ( } /* Define the error handler. */ +# ifdef _LIBC +# include <libintl.h> +# else +# include "gettext.h" +# endif +/* NLS: Disable gettext in obstack for now: */ +# undef _ +# define _(Str) (Str) # ifndef _ -# if ((HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC) && \ - defined __UCLIBC_HAS_GETTEXT_AWARENESS__ && 00 -# include <libintl.h> -# ifndef _ -# define _(Str) INTUSE(__dcgettext) (NULL, Str, LC_MESSAGES) -# endif -# else -# define _(Str) (Str) -# endif +# define _(msgid) gettext (msgid) # endif -# if defined _LIBC && defined USE_IN_LIBIO + +# if defined _LIBC && !defined __UCLIBC__ # include <libio/iolibio.h> -# define fputs(s, f) _IO_fputs (s, f) +# endif + +# ifndef __attribute__ +/* This feature is available in gcc versions 2.5 and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) +# define __attribute__(Spec) /* empty */ +# endif # endif static void @@ -498,135 +445,12 @@ print_and_abort (void) happen because the "memory exhausted" message appears in other places like this and the translation should be reused instead of creating a very similar string which requires a separate translation. */ -# if defined _LIBC && defined USE_IN_LIBIO - if (_IO_fwide (stderr, 0) > 0) - fwprintf (stderr, L"%s\n", _("memory exhausted")); - else +# if defined _LIBC && !defined __UCLIBC__ + (void) __fxprintf (NULL, "%s\n", _("memory exhausted")); +# else + fprintf (stderr, "%s\n", _("memory exhausted")); # endif - fprintf (stderr, "%s\n", _("memory exhausted")); - exit (obstack_exit_failure); -} - -# if 0 -/* These are now turned off because the applications do not use it - and it uses bcopy via obstack_grow, which causes trouble on sysV. */ - -/* Now define the functional versions of the obstack macros. - Define them to simply use the corresponding macros to do the job. */ - -# if defined __STDC__ && __STDC__ -/* These function definitions do not work with non-ANSI preprocessors; - they won't pass through the macro names in parentheses. */ - -/* The function names appear in parentheses in order to prevent - the macro-definitions of the names from being expanded there. */ - -POINTER (obstack_base) (obstack) - struct obstack *obstack; -{ - return obstack_base (obstack); -} - -POINTER (obstack_next_free) (obstack) - struct obstack *obstack; -{ - return obstack_next_free (obstack); -} - -int (obstack_object_size) (obstack) - struct obstack *obstack; -{ - return obstack_object_size (obstack); -} - -int (obstack_room) (obstack) - struct obstack *obstack; -{ - return obstack_room (obstack); -} - -int (obstack_make_room) (obstack, length) - struct obstack *obstack; - int length; -{ - return obstack_make_room (obstack, length); + exit (__obstack_exit_failure); } -void (obstack_grow) (obstack, data, length) - struct obstack *obstack; - const POINTER data; - int length; -{ - obstack_grow (obstack, data, length); -} - -void (obstack_grow0) (obstack, data, length) - struct obstack *obstack; - const POINTER data; - int length; -{ - obstack_grow0 (obstack, data, length); -} - -void (obstack_1grow) (obstack, character) - struct obstack *obstack; - int character; -{ - obstack_1grow (obstack, character); -} - -void (obstack_blank) (obstack, length) - struct obstack *obstack; - int length; -{ - obstack_blank (obstack, length); -} - -void (obstack_1grow_fast) (obstack, character) - struct obstack *obstack; - int character; -{ - obstack_1grow_fast (obstack, character); -} - -void (obstack_blank_fast) (obstack, length) - struct obstack *obstack; - int length; -{ - obstack_blank_fast (obstack, length); -} - -POINTER (obstack_finish) (obstack) - struct obstack *obstack; -{ - return obstack_finish (obstack); -} - -POINTER (obstack_alloc) (obstack, length) - struct obstack *obstack; - int length; -{ - return obstack_alloc (obstack, length); -} - -POINTER (obstack_copy) (obstack, address, length) - struct obstack *obstack; - const POINTER address; - int length; -{ - return obstack_copy (obstack, address, length); -} - -POINTER (obstack_copy0) (obstack, address, length) - struct obstack *obstack; - const POINTER address; - int length; -{ - return obstack_copy0 (obstack, address, length); -} - -# endif /* __STDC__ */ - -# endif /* 0 */ - #endif /* !ELIDE_CODE */ |