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/*
* xfuncs.c - safe malloc funcions
*
* based on busybox
*
* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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.
*
*/
#include <common.h>
#include <malloc.h>
#include <module.h>
void *xmalloc(size_t size)
{
void *p = NULL;
if (!(p = malloc(size)))
panic("ERROR: out of memory\n");
return p;
}
EXPORT_SYMBOL(xmalloc);
void *xrealloc(void *ptr, size_t size)
{
void *p = NULL;
if (!(p = realloc(ptr, size)))
panic("ERROR: out of memory\n");
return p;
}
EXPORT_SYMBOL(xrealloc);
void *xzalloc(size_t size)
{
void *ptr = xmalloc(size);
memset(ptr, 0, size);
return ptr;
}
EXPORT_SYMBOL(xzalloc);
char *xstrdup(const char *s)
{
char *p = strdup(s);
if (!p)
panic("ERROR: out of memory\n");
return p;
}
EXPORT_SYMBOL(xstrdup);
char *xstrndup(const char *s, size_t n)
{
int m;
char *t;
/* We can just xmalloc(n+1) and strncpy into it, */
/* but think about xstrndup("abc", 10000) wastage! */
m = n;
t = (char*) s;
while (m) {
if (!*t) break;
m--;
t++;
}
n -= m;
t = xmalloc(n + 1);
t[n] = '\0';
return memcpy(t, s, n);
}
EXPORT_SYMBOL(xstrndup);
void* xmemalign(size_t alignment, size_t bytes)
{
void *p = memalign(alignment, bytes);
if (!p)
panic("ERROR: out of memory\n");
return p;
}
EXPORT_SYMBOL(xmemalign);
void *xmemdup(const void *orig, size_t size)
{
void *buf = xmalloc(size);
memcpy(buf, orig, size);
return buf;
}
EXPORT_SYMBOL(xmemdup);
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