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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
* Copyright 2013 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _STDLIB_H
#define _STDLIB_H
#include <die.h>
#include <stddef.h>
#include <string.h>
#define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1UL)
#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
#define ALIGN_UP(x,a) ALIGN((x),(a))
#define ALIGN_DOWN(x,a) ((x) & ~((typeof(x))(a)-1UL))
#define IS_ALIGNED(x,a) (((x) & ((typeof(x))(a)-1UL)) == 0)
/**
* @defgroup malloc Memory allocation functions
* @{
*/
#if IS_ENABLED(CONFIG_LP_DEBUG_MALLOC) && !defined(IN_MALLOC_C)
#define free(p) \
({ \
extern void print_malloc_map(void); \
extern void free(void *); \
printf("free(%p) called from %s:%s:%d...\n", p, __FILE__, __func__, \
__LINE__);\
printf("PRE free()\n"); \
print_malloc_map(); \
free(p); \
printf("POST free()\n"); \
print_malloc_map(); \
})
#define malloc(s) \
({ \
extern void print_malloc_map(void); \
extern void *malloc(size_t); \
void *ptr; \
printf("malloc(%u) called from %s:%s:%d...\n", s, __FILE__, __func__, \
__LINE__);\
printf("PRE malloc\n"); \
print_malloc_map(); \
ptr = malloc(s); \
printf("POST malloc (ptr = %p)\n", ptr); \
print_malloc_map(); \
ptr; \
})
#define calloc(n,s) \
({ \
extern void print_malloc_map(void); \
extern void *calloc(size_t,size_t); \
void *ptr; \
printf("calloc(%u, %u) called from %s:%s:%d...\n", n, s, __FILE__, \
__func__, __LINE__);\
printf("PRE calloc\n"); \
print_malloc_map(); \
ptr = calloc(n,s); \
printf("POST calloc (ptr = %p)\n", ptr); \
print_malloc_map(); \
ptr; \
})
#define realloc(p,s) \
({ \
extern void print_malloc_map(void); \
extern void *realloc(void*,size_t); \
void *ptr; \
printf("realloc(%p, %u) called from %s:%s:%d...\n", p, s, __FILE__, \
__func__, __LINE__);\
printf("PRE realloc\n"); \
print_malloc_map(); \
ptr = realloc(p,s); \
printf("POST realloc (ptr = %p)\n", ptr); \
print_malloc_map(); \
ptr; \
})
#define memalign(a,s) \
({ \
extern void print_malloc_map(void); \
extern void *memalign(size_t, size_t); \
void *ptr; \
printf("memalign(%u, %u) called from %s:%s:%d...\n", a, s, __FILE__, \
__func__, __LINE__);\
printf("PRE memalign\n"); \
print_malloc_map(); \
ptr = memalign(a,s); \
printf("POST memalign (ptr = %p)\n", ptr); \
print_malloc_map(); \
ptr; \
})
#define dma_malloc(s) \
({ \
extern void print_malloc_map(void); \
extern void *dma_malloc(size_t); \
void *ptr; \
printf("dma_malloc(%u) called from %s:%s:%d...\n", s, __FILE__, \
__func__, __LINE__);\
printf("PRE dma_malloc\n"); \
print_malloc_map(); \
ptr = dma_malloc(s); \
printf("POST dma_malloc (ptr = %p)\n", ptr); \
print_malloc_map(); \
ptr; \
})
#define dma_memalign(a,s) \
({ \
extern void print_malloc_map(void); \
extern void *dma_memalign(size_t, size_t); \
void *ptr; \
printf("dma_memalign(%u, %u) called from %s:%s:%d...\n", a, s, \
__FILE__, __func__, __LINE__);\
printf("PRE dma_memalign\n"); \
print_malloc_map(); \
ptr = dma_memalign(a,s); \
printf("POST dma_memalign (ptr = %p)\n", ptr); \
print_malloc_map(); \
ptr; \
})
#else
void free(void *ptr);
void *malloc(size_t size);
void *calloc(size_t nmemb, size_t size);
void *realloc(void *ptr, size_t size);
void *memalign(size_t align, size_t size);
void *dma_malloc(size_t size);
void *dma_memalign(size_t align, size_t size);
#endif
void init_dma_memory(void *start, u32 size);
int dma_initialized(void);
int dma_coherent(void *ptr);
static inline void *xmalloc_work(size_t size, const char *file,
const char *func, int line)
{
void *ret = malloc(size);
if (!ret && size) {
die_work(file, func, line, "Failed to malloc %zu bytes.\n",
size);
}
return ret;
}
#define xmalloc(size) xmalloc_work((size), __FILE__, __FUNCTION__, __LINE__)
static inline void *xzalloc_work(size_t size, const char *file,
const char *func, int line)
{
void *ret = xmalloc_work(size, file, func, line);
memset(ret, 0, size);
return ret;
}
#define xzalloc(size) xzalloc_work((size), __FILE__, __FUNCTION__, __LINE__)
static inline void *xmemalign_work(size_t align, size_t size, const char *file,
const char *func, int line)
{
void *ret = memalign(align, size);
if (!ret && size) {
die_work(file, func, line,
"Failed to memalign %zu bytes with %zu alignment.\n",
size, align);
}
return ret;
}
#define xmemalign(align, size) \
xmemalign_work((align), (size), __FILE__, __func__, __LINE__)
/** @} */
/**
* @defgroup stdlib String conversion functions
* @{
*/
long int strtol(const char *s, char **nptr, int base);
unsigned long int strtoul(const char *s, char **nptr, int base);
unsigned long long int strtoull(const char *s, char **nptr, int base);
long atol(const char *nptr);
/** @} */
/**
* @defgroup rand Random number generator functions
* @{
*/
int rand_r(unsigned int *seed);
int rand(void);
void srand(unsigned int seed);
/** @} */
/* Enter remote GDB mode. Will initialize connection if not already up. */
void gdb_enter(void);
/* Disconnect existing GDB connection if one exists. */
void gdb_exit(s8 exit_status);
/**
* Stop execution and halt the processor (this function does not return).
*/
void halt(void) __attribute__((noreturn));
void exit(int status) __attribute__((noreturn));
#define abort() halt() /**< Alias for the halt() function */
#if IS_ENABLED(CONFIG_LP_REMOTEGDB)
/* Override abort()/halt() to trap into GDB if it is enabled. */
#define halt() do { gdb_enter(); halt(); } while (0)
#endif
/** @} */
void qsort(void *aa, size_t n, size_t es, int (*cmp)(const void *, const void *));
char *getenv(const char*);
uint64_t __umoddi3(uint64_t num, uint64_t den);
uint64_t __udivdi3(uint64_t num, uint64_t den);
uint64_t __ashldi3(uint64_t num, unsigned shift);
uint64_t __lshrdi3(uint64_t num, unsigned shift);
#endif
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