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[/] [or1k/] [branches/] [oc/] [gdb-5.0/] [libiberty/] [xmalloc.c] - Rev 1771
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/* memory allocation routines with error checking. Copyright 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc. This file is part of the libiberty library. Libiberty is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Libiberty 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with libiberty; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "ansidecl.h" #include "libiberty.h" #include <stdio.h> #ifdef __STDC__ #include <stddef.h> #else #define size_t unsigned long #define ptrdiff_t long #endif #if VMS #include <stdlib.h> #include <unixlib.h> #else /* For systems with larger pointers than ints, these must be declared. */ PTR malloc PARAMS ((size_t)); PTR realloc PARAMS ((PTR, size_t)); PTR calloc PARAMS ((size_t, size_t)); PTR sbrk PARAMS ((ptrdiff_t)); #endif /* The program name if set. */ static const char *name = ""; #ifdef HAVE_SBRK /* The initial sbrk, set when the program name is set. Not used for win32 ports other than cygwin32. */ static char *first_break = NULL; #endif /* HAVE_SBRK */ void xmalloc_set_program_name (s) const char *s; { name = s; #ifdef HAVE_SBRK /* Win32 ports other than cygwin32 don't have brk() */ if (first_break == NULL) first_break = (char *) sbrk (0); #endif /* HAVE_SBRK */ } PTR xmalloc (size) size_t size; { PTR newmem; if (size == 0) size = 1; newmem = malloc (size); if (!newmem) { #ifdef HAVE_SBRK extern char **environ; size_t allocated; if (first_break != NULL) allocated = (char *) sbrk (0) - first_break; else allocated = (char *) sbrk (0) - (char *) &environ; fprintf (stderr, "\n%s%sCannot allocate %lu bytes after allocating %lu bytes\n", name, *name ? ": " : "", (unsigned long) size, (unsigned long) allocated); #else /* HAVE_SBRK */ fprintf (stderr, "\n%s%sCannot allocate %lu bytes\n", name, *name ? ": " : "", (unsigned long) size); #endif /* HAVE_SBRK */ xexit (1); } return (newmem); } PTR xcalloc (nelem, elsize) size_t nelem, elsize; { PTR newmem; if (nelem == 0 || elsize == 0) nelem = elsize = 1; newmem = calloc (nelem, elsize); if (!newmem) { #ifdef HAVE_SBRK extern char **environ; size_t allocated; if (first_break != NULL) allocated = (char *) sbrk (0) - first_break; else allocated = (char *) sbrk (0) - (char *) &environ; fprintf (stderr, "\n%s%sCannot allocate %lu bytes after allocating %lu bytes\n", name, *name ? ": " : "", (unsigned long) (nelem * elsize), (unsigned long) allocated); #else /* HAVE_SBRK */ fprintf (stderr, "\n%s%sCannot allocate %lu bytes\n", name, *name ? ": " : "", (unsigned long) (nelem * elsize)); #endif /* HAVE_SBRK */ xexit (1); } return (newmem); } PTR xrealloc (oldmem, size) PTR oldmem; size_t size; { PTR newmem; if (size == 0) size = 1; if (!oldmem) newmem = malloc (size); else newmem = realloc (oldmem, size); if (!newmem) { #ifdef HAVE_SBRK extern char **environ; size_t allocated; if (first_break != NULL) allocated = (char *) sbrk (0) - first_break; else allocated = (char *) sbrk (0) - (char *) &environ; fprintf (stderr, "\n%s%sCannot reallocate %lu bytes after allocating %lu bytes\n", name, *name ? ": " : "", (unsigned long) size, (unsigned long) allocated); #else /* HAVE_SBRK */ fprintf (stderr, "\n%s%sCannot reallocate %lu bytes\n", name, *name ? ": " : "", (unsigned long) size); #endif /* HAVE_SBRK */ xexit (1); } return (newmem); }
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