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-rw-r--r--malloc/obstack.c135
1 files changed, 60 insertions, 75 deletions
diff --git a/malloc/obstack.c b/malloc/obstack.c
index 4064f61950..fa4fefc149 100644
--- a/malloc/obstack.c
+++ b/malloc/obstack.c
@@ -17,14 +17,11 @@
<http://www.gnu.org/licenses/>. */
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
#ifdef _LIBC
# include <obstack.h>
# include <shlib-compat.h>
#else
+# include <config.h>
# include "obstack.h"
#endif
@@ -39,7 +36,7 @@
C Library, but also included in many other GNU distributions. Compiling
and linking in this code is a waste when using the GNU C library
(especially if it is a shared library). Rather than having every GNU
- program understand `configure --with-gnu-libc' and omit the object
+ program understand 'configure --with-gnu-libc' and omit the object
files, it is simpler to just do this in the source for each such file. */
#include <stdio.h> /* Random thing to get __GNU_LIBRARY__. */
@@ -55,12 +52,7 @@
#ifndef ELIDE_CODE
-# if HAVE_INTTYPES_H
-# include <inttypes.h>
-# endif
-# if HAVE_STDINT_H || defined _LIBC
-# include <stdint.h>
-# endif
+# include <stdint.h>
/* Determine default alignment. */
union fooround
@@ -85,23 +77,23 @@ enum
/* 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;
- in such a case, redefine COPYING_UNIT to `long' (if that works)
- or `char' as a last resort. */
+ in such a case, redefine COPYING_UNIT to 'long' (if that works)
+ or 'char' as a last resort. */
# ifndef COPYING_UNIT
# define COPYING_UNIT int
# endif
-/* The functions allocating more room by calling `obstack_chunk_alloc'
- jump to the handler pointed to by `obstack_alloc_failed_handler'.
+/* The functions allocating more room by calling 'obstack_chunk_alloc'
+ jump to the handler pointed to by 'obstack_alloc_failed_handler'.
This can be set to a user defined function which should either
abort gracefully or use longjump - but shouldn't return. This
variable by default points to the internal function
- `print_and_abort'. */
-static void print_and_abort (void);
+ 'print_and_abort'. */
+static _Noreturn void print_and_abort (void);
void (*obstack_alloc_failed_handler) (void) = print_and_abort;
-/* Exit value used when `print_and_abort' is used. */
+/* Exit value used when 'print_and_abort' is used. */
# include <stdlib.h>
# ifdef _LIBC
int obstack_exit_failure = EXIT_FAILURE;
@@ -134,9 +126,9 @@ compat_symbol (libc, _obstack_compat, _obstack, GLIBC_2_0);
# define CALL_FREEFUN(h, old_chunk) \
do { \
if ((h)->use_extra_arg) \
- (*(h)->freefun)((h)->extra_arg, (old_chunk)); \
+ (*(h)->freefun)((h)->extra_arg, (old_chunk)); \
else \
- (*(void (*)(void *))(h)->freefun)((old_chunk)); \
+ (*(void (*)(void *))(h)->freefun)((old_chunk)); \
} while (0)
@@ -150,44 +142,44 @@ compat_symbol (libc, _obstack_compat, _obstack, GLIBC_2_0);
int
_obstack_begin (struct obstack *h,
- int size, int alignment,
- void *(*chunkfun)(long),
- void (*freefun)(void *))
+ int size, int alignment,
+ void *(*chunkfun) (long),
+ void (*freefun) (void *))
{
struct _obstack_chunk *chunk; /* points to new chunk */
if (alignment == 0)
alignment = DEFAULT_ALIGNMENT;
if (size == 0)
- /* Default size is what GNU malloc can fit in a 4096-byte block. */
+ /* Default size is what GNU malloc can fit in a 4096-byte block. */
{
/* 12 is sizeof (mhead) and 4 is EXTRA from GNU malloc.
- Use the values for range checking, because if range checking is off,
- the extra bytes won't be missed terribly, but if range checking is on
- and we used a larger request, a whole extra 4096 bytes would be
- allocated.
+ Use the values for range checking, because if range checking is off,
+ the extra bytes won't be missed terribly, but if range checking is on
+ and we used a larger request, a whole extra 4096 bytes would be
+ allocated.
- These number are irrelevant to the new GNU malloc. I suspect it is
- less sensitive to the size of the request. */
+ These number are irrelevant to the new GNU malloc. I suspect it is
+ less sensitive to the size of the request. */
int extra = ((((12 + DEFAULT_ROUNDING - 1) & ~(DEFAULT_ROUNDING - 1))
- + 4 + DEFAULT_ROUNDING - 1)
- & ~(DEFAULT_ROUNDING - 1));
+ + 4 + DEFAULT_ROUNDING - 1)
+ & ~(DEFAULT_ROUNDING - 1));
size = 4096 - extra;
}
- h->chunkfun = (struct _obstack_chunk * (*)(void *, long))chunkfun;
- h->freefun = (void (*)(void *, struct _obstack_chunk *))freefun;
+ h->chunkfun = (struct _obstack_chunk * (*) (void *, long)) chunkfun;
+ h->freefun = (void (*) (void *, struct _obstack_chunk *)) freefun;
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)();
+ (*obstack_alloc_failed_handler) ();
h->next_free = h->object_base = __PTR_ALIGN ((char *) chunk, chunk->contents,
- alignment - 1);
+ alignment - 1);
h->chunk_limit = chunk->limit
- = (char *) chunk + h->chunk_size;
+ = (char *) chunk + h->chunk_size;
chunk->prev = 0;
/* The initial chunk now contains no empty object. */
h->maybe_empty_object = 0;
@@ -197,33 +189,33 @@ _obstack_begin (struct obstack *h,
int
_obstack_begin_1 (struct obstack *h, int size, int alignment,
- void *(*chunkfun)(void *, long),
- void (*freefun)(void *, void *),
- void *arg)
+ void *(*chunkfun) (void *, long),
+ void (*freefun) (void *, void *),
+ void *arg)
{
struct _obstack_chunk *chunk; /* points to new chunk */
if (alignment == 0)
alignment = DEFAULT_ALIGNMENT;
if (size == 0)
- /* Default size is what GNU malloc can fit in a 4096-byte block. */
+ /* Default size is what GNU malloc can fit in a 4096-byte block. */
{
/* 12 is sizeof (mhead) and 4 is EXTRA from GNU malloc.
- Use the values for range checking, because if range checking is off,
- the extra bytes won't be missed terribly, but if range checking is on
- and we used a larger request, a whole extra 4096 bytes would be
- allocated.
+ Use the values for range checking, because if range checking is off,
+ the extra bytes won't be missed terribly, but if range checking is on
+ and we used a larger request, a whole extra 4096 bytes would be
+ allocated.
- These number are irrelevant to the new GNU malloc. I suspect it is
- less sensitive to the size of the request. */
+ These number are irrelevant to the new GNU malloc. I suspect it is
+ less sensitive to the size of the request. */
int extra = ((((12 + DEFAULT_ROUNDING - 1) & ~(DEFAULT_ROUNDING - 1))
- + 4 + DEFAULT_ROUNDING - 1)
- & ~(DEFAULT_ROUNDING - 1));
+ + 4 + DEFAULT_ROUNDING - 1)
+ & ~(DEFAULT_ROUNDING - 1));
size = 4096 - extra;
}
- h->chunkfun = (struct _obstack_chunk * (*)(void *, long))chunkfun;
- h->freefun = (void (*)(void *, struct _obstack_chunk *))freefun;
+ h->chunkfun = (struct _obstack_chunk * (*)(void *,long)) chunkfun;
+ h->freefun = (void (*) (void *, struct _obstack_chunk *)) freefun;
h->chunk_size = size;
h->alignment_mask = alignment - 1;
h->extra_arg = arg;
@@ -231,11 +223,11 @@ _obstack_begin_1 (struct obstack *h, int size, int alignment,
chunk = h->chunk = CALL_CHUNKFUN (h, h->chunk_size);
if (!chunk)
- (*obstack_alloc_failed_handler)();
+ (*obstack_alloc_failed_handler) ();
h->next_free = h->object_base = __PTR_ALIGN ((char *) chunk, chunk->contents,
- alignment - 1);
+ alignment - 1);
h->chunk_limit = chunk->limit
- = (char *) chunk + h->chunk_size;
+ = (char *) chunk + h->chunk_size;
chunk->prev = 0;
/* The initial chunk now contains no empty object. */
h->maybe_empty_object = 0;
@@ -283,12 +275,12 @@ _obstack_newchunk (struct obstack *h, int length)
if (h->alignment_mask + 1 >= DEFAULT_ALIGNMENT)
{
for (i = obj_size / sizeof (COPYING_UNIT) - 1;
- i >= 0; i--)
- ((COPYING_UNIT *) object_base)[i]
- = ((COPYING_UNIT *) h->object_base)[i];
+ i >= 0; i--)
+ ((COPYING_UNIT *) object_base)[i]
+ = ((COPYING_UNIT *) h->object_base)[i];
/* We used to copy the odd few remaining bytes as one extra COPYING_UNIT,
- but that can cross a page boundary on a machine
- which does not do strict alignment for COPYING_UNITS. */
+ but that can cross a page boundary on a machine
+ which does not do strict alignment for COPYING_UNITS. */
already = obj_size / sizeof (COPYING_UNIT) * sizeof (COPYING_UNIT);
}
else
@@ -302,8 +294,8 @@ _obstack_newchunk (struct obstack *h, int length)
But not if that chunk might contain an empty object. */
if (!h->maybe_empty_object
&& (h->object_base
- == __PTR_ALIGN ((char *) old_chunk, old_chunk->contents,
- h->alignment_mask)))
+ == __PTR_ALIGN ((char *) old_chunk, old_chunk->contents,
+ h->alignment_mask)))
{
new_chunk->prev = old_chunk->prev;
CALL_FREEFUN (h, old_chunk);
@@ -324,7 +316,7 @@ libc_hidden_def (_obstack_newchunk)
/* 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, void *obj);
+int _obstack_allocated_p (struct obstack *h, void *obj) __attribute_pure__;
int
_obstack_allocated_p (struct obstack *h, void *obj)
@@ -350,7 +342,7 @@ _obstack_allocated_p (struct obstack *h, void *obj)
# undef obstack_free
void
-obstack_free (struct obstack *h, void *obj)
+__obstack_free (struct obstack *h, void *obj)
{
struct _obstack_chunk *lp; /* below addr of any objects in this chunk */
struct _obstack_chunk *plp; /* point to previous chunk if any */
@@ -365,7 +357,7 @@ obstack_free (struct obstack *h, void *obj)
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. */
+ chunk contains an empty object, so assume that it may. */
h->maybe_empty_object = 1;
}
if (lp)
@@ -412,15 +404,7 @@ _obstack_memory_used (struct obstack *h)
# include <libio/iolibio.h>
# 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
-__attribute__ ((noreturn))
+static _Noreturn void
print_and_abort (void)
{
/* Don't change any of these strings. Yes, it would be possible to add
@@ -429,10 +413,11 @@ print_and_abort (void)
like this and the translation should be reused instead of creating
a very similar string which requires a separate translation. */
# ifdef _LIBC
- (void) __fxprintf (NULL, "%s\n", _ ("memory exhausted"));
+ (void) __fxprintf (NULL, "%s\n", _("memory exhausted"));
# else
- fprintf (stderr, "%s\n", _ ("memory exhausted"));
+ fprintf (stderr, "%s\n", _("memory exhausted"));
# endif
exit (obstack_exit_failure);
}
+
#endif /* !ELIDE_CODE */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 20:23:17 +0000