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// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
// SPDX-License-Identifier: BSD-3-Clause
#ifndef SHADOW_INCLUDE_LIB_MALLOC_H_
#define SHADOW_INCLUDE_LIB_MALLOC_H_
#include <config.h>
#include <assert.h>
#include <errno.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include "attr.h"
#include "defines.h"
#define CALLOC(n, type) ((type *) calloc(n, sizeof(type)))
#define XCALLOC(n, type) ((type *) xcalloc(n, sizeof(type)))
#define MALLOC(n, type) ((type *) mallocarray(n, sizeof(type)))
#define XMALLOC(n, type) ((type *) xmallocarray(n, sizeof(type)))
#define REALLOC(ptr, n, type) \
( \
_Generic(ptr, type *: (type *) reallocarray(ptr, n, sizeof(type))) \
)
#define REALLOCF(ptr, n, type) \
( \
_Generic(ptr, type *: (type *) reallocarrayf(ptr, n, sizeof(type))) \
)
#define XREALLOC(ptr, n, type) \
( \
_Generic(ptr, type *: (type *) xreallocarray(ptr, n, sizeof(type))) \
)
ATTR_MALLOC(free)
inline void *xmalloc(size_t size);
ATTR_MALLOC(free)
inline void *xmallocarray(size_t nmemb, size_t size);
ATTR_MALLOC(free)
inline void *mallocarray(size_t nmemb, size_t size);
ATTR_MALLOC(free)
inline void *reallocarrayf(void *p, size_t nmemb, size_t size);
ATTR_MALLOC(free)
inline char *xstrdup(const char *str);
ATTR_MALLOC(free)
void *xcalloc(size_t nmemb, size_t size);
ATTR_MALLOC(free)
void *xreallocarray(void *p, size_t nmemb, size_t size);
inline void *
xmalloc(size_t size)
{
return xmallocarray(1, size);
}
inline void *
xmallocarray(size_t nmemb, size_t size)
{
return xreallocarray(NULL, nmemb, size);
}
inline void *
mallocarray(size_t nmemb, size_t size)
{
return reallocarray(NULL, nmemb, size);
}
inline void *
reallocarrayf(void *p, size_t nmemb, size_t size)
{
void *q;
q = reallocarray(p, nmemb, size);
/* realloc(p, 0) is equivalent to free(p); avoid double free. */
if (q == NULL && nmemb != 0 && size != 0)
free(p);
return q;
}
inline char *
xstrdup(const char *str)
{
return strcpy(XMALLOC(strlen(str) + 1, char), str);
}
#endif // include guard
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