/* * 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); /** @} */ /** * 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