procps/proc/alloc.c
Sami Kerola c043c47ddd pmap: use correct types for memory allocation
Fixes error which did not happen always.  Changes of being affected by
the bug where greater the more there where pids defined as pmap argument.
The debian bug referral can almost certainly reproduce the problem,
especially when tried multiple times in row.

pmap: malloc.c:3096: sYSMALLOc: Assertion `(old_top == (((mbinptr)
(((char *) &((av)->bins[((1) - 1) * 2])) - __builtin_offsetof (struct
malloc_chunk, fd)))) && old_size == 0) || ((unsigned long) (old_size) >=
(unsigned long)((((__builtin_offsetof (struct malloc_chunk,
fd_nextsize))+((2 * (sizeof(size_t))) - 1)) & ~((2 * (sizeof(size_t))) -
1))) && ((old_top)->size & 0x1) && ((unsigned long)old_end & pagemask) ==
0)' failed.

Reported-by: lee <lee@yun.yagibdah.de>
Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=688180
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2012-11-06 22:22:11 +11:00

93 lines
2.4 KiB
C

/*
* alloc.c - memory allocation functions
* Copyright (C) 1992-1998 by Michael K. Johnson, johnsonm@redhat.com
* Copyright 2002 Albert Cahalan
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "alloc.h"
static void xdefault_error(const char *restrict fmts, ...) __attribute__((format(printf,1,2)));
static void xdefault_error(const char *restrict fmts, ...) {
va_list va;
va_start(va, fmts);
fprintf(stderr, fmts, va);
va_end(va);
}
message_fn xalloc_err_handler = xdefault_error;
void *xcalloc(unsigned int size) {
void * p;
if (size == 0)
++size;
p = calloc(1, size);
if (!p) {
xalloc_err_handler("%s failed to allocate %u bytes of memory", __func__, size);
exit(EXIT_FAILURE);
}
return p;
}
void *xmalloc(size_t size) {
void *p;
if (size == 0)
++size;
p = malloc(size);
if (!p) {
xalloc_err_handler("%s failed to allocate %zu bytes of memory", __func__, size);
exit(EXIT_FAILURE);
}
return(p);
}
void *xrealloc(void *oldp, unsigned int size) {
void *p;
if (size == 0)
++size;
p = realloc(oldp, size);
if (!p) {
xalloc_err_handler("%s failed to allocate %u bytes of memory", __func__, size);
exit(EXIT_FAILURE);
}
return(p);
}
char *xstrdup(const char *str) {
char *p = NULL;
if (str) {
unsigned int size = strlen(str) + 1;
p = malloc(size);
if (!p) {
xalloc_err_handler("%s failed to allocate %u bytes of memory", __func__, size);
exit(EXIT_FAILURE);
}
strcpy(p, str);
}
return(p);
}