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-rw-r--r--gcc/obstack.c151
1 files changed, 27 insertions, 124 deletions
diff --git a/gcc/obstack.c b/gcc/obstack.c
index 4f9a18435e4..59b2eeea17e 100644
--- a/gcc/obstack.c
+++ b/gcc/obstack.c
@@ -1,29 +1,19 @@
/* obstack.c - subroutines used implicitly by object stack macros
- Copyright (C) 1988,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
+ Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
- the C library, however. The master source lives in /gd/gnu/lib.
+This program is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
- NOTE: The canonical source of this file is maintained with the GNU C Library.
- Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- USA. */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "obstack.h"
@@ -77,28 +67,6 @@ union fooround {long x; double d;};
#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'.
- 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
-
-/* 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
-#endif
-int obstack_exit_failure = EXIT_FAILURE;
-
/* The non-GNU-C macros copy the obstack into this global variable
to avoid multiple evaluation. */
@@ -110,20 +78,6 @@ 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) \
- (((h) -> use_extra_arg) \
- ? (*(h)->chunkfun) ((h)->extra_arg, (size)) \
- : (*(struct _obstack_chunk *(*) (long)) (h)->chunkfun) ((size)))
-
-#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)) \
@@ -136,7 +90,6 @@ struct obstack *_obstack;
else \
(*(void (*) ()) (h)->freefun) ((old_chunk)); \
} while (0)
-#endif
/* Initialize an obstack H for use. Specify chunk size SIZE (0 means default).
@@ -153,13 +106,8 @@ _obstack_begin (h, size, alignment, chunkfun, freefun)
struct obstack *h;
int size;
int alignment;
-#if defined (__STDC__) && __STDC__
- POINTER (*chunkfun) (long);
- void (*freefun) (void *);
-#else
POINTER (*chunkfun) ();
void (*freefun) ();
-#endif
{
register struct _obstack_chunk *chunk; /* points to new chunk */
@@ -182,27 +130,25 @@ _obstack_begin (h, size, alignment, chunkfun, freefun)
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->alloc_failed = 1;
+ return 0;
+ }
+ h->alloc_failed = 0;
h->next_free = h->object_base = chunk->contents;
h->chunk_limit = chunk->limit
= (char *) chunk + h->chunk_size;
chunk->prev = 0;
/* The initial chunk now contains no empty object. */
h->maybe_empty_object = 0;
- h->alloc_failed = 0;
return 1;
}
@@ -211,13 +157,8 @@ _obstack_begin_1 (h, size, alignment, chunkfun, freefun, arg)
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;
{
register struct _obstack_chunk *chunk; /* points to new chunk */
@@ -241,13 +182,8 @@ _obstack_begin_1 (h, size, alignment, chunkfun, freefun, arg)
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;
@@ -255,14 +191,17 @@ _obstack_begin_1 (h, size, alignment, chunkfun, freefun, arg)
chunk = h->chunk = CALL_CHUNKFUN (h, h -> chunk_size);
if (!chunk)
- (*obstack_alloc_failed_handler) ();
+ {
+ h->alloc_failed = 1;
+ return 0;
+ }
+ h->alloc_failed = 0;
h->next_free = h->object_base = chunk->contents;
h->chunk_limit = chunk->limit
= (char *) chunk + h->chunk_size;
chunk->prev = 0;
/* The initial chunk now contains no empty object. */
h->maybe_empty_object = 0;
- h->alloc_failed = 0;
return 1;
}
@@ -292,7 +231,11 @@ _obstack_newchunk (h, length)
/* Allocate and initialize the new chunk. */
new_chunk = CALL_CHUNKFUN (h, new_size);
if (!new_chunk)
- (*obstack_alloc_failed_handler) ();
+ {
+ h->alloc_failed = 1;
+ return;
+ }
+ h->alloc_failed = 0;
h->chunk = new_chunk;
new_chunk->prev = old_chunk;
new_chunk->limit = h->chunk_limit = (char *) new_chunk + new_size;
@@ -436,39 +379,6 @@ obstack_free (h, obj)
abort ();
}
-int
-_obstack_memory_used (h)
- struct obstack *h;
-{
- register struct _obstack_chunk* lp;
- register int nbytes = 0;
-
- for (lp = h->chunk; lp != 0; lp = lp->prev)
- {
- nbytes += lp->limit - (char *) lp;
- }
- return nbytes;
-}
-
-/* Define the error handler. */
-#ifndef _
-# ifdef HAVE_LIBINTL_H
-# include <libintl.h>
-# ifndef _
-# define _(Str) gettext (Str)
-# endif
-# else
-# define _(Str) (Str)
-# endif
-#endif
-
-static void
-print_and_abort ()
-{
- fputs (_("memory exhausted\n"), stderr);
- 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. */
@@ -507,13 +417,6 @@ int (obstack_room) (obstack)
return obstack_room (obstack);
}
-int (obstack_make_room) (obstack, length)
- struct obstack *obstack;
- int length;
-{
- return obstack_make_room (obstack, length);
-}
-
void (obstack_grow) (obstack, pointer, length)
struct obstack *obstack;
POINTER pointer;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-20 02:42:18 +0000