9665d389e4
Since the DMA memory is allocated by Coreboot (outside of the payload's linker script), it won't get zeroed upon loading like the heap. Therefore, a warm reboot that doesn't reset memory may leave stale malloc cookies lying around and misinterpret them as memory that is still in use on the next boot. After several boots this may fill up the whole DMA memory and lead to OOM conditions. Therefore, this patch explicitly wipes the first cookie in init_dma_memory() to prevent that from happening. It also expands the existing memory allocator debugging code to cover the DMA parts, which was very helpful in identifying this particular problem. Change-Id: I6e2083c286ff8ec865b22dd922c39c456944b451 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/169455 Reviewed-by: Stefan Reinauer <reinauer@google.com> (cherry picked from commit 8e5e1784638563b865553125cd5dab1d36a5d2cb) Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com> Reviewed-on: http://review.coreboot.org/6645 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
181 lines
5.4 KiB
C
181 lines
5.4 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _STDLIB_H
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#define _STDLIB_H
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#include <stddef.h>
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/**
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* @defgroup malloc Memory allocation functions
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* @{
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*/
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#if defined(CONFIG_LP_DEBUG_MALLOC) && !defined(IN_MALLOC_C)
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#define free(p) \
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({ \
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extern void print_malloc_map(void); \
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extern void free(void *); \
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printf("free(%p) called from %s:%s:%d...\n", p, __FILE__, __func__, \
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__LINE__);\
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printf("PRE free()\n"); \
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print_malloc_map(); \
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free(p); \
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printf("POST free()\n"); \
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print_malloc_map(); \
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})
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#define malloc(s) \
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({ \
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extern void print_malloc_map(void); \
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extern void *malloc(size_t); \
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void *ptr; \
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printf("malloc(%u) called from %s:%s:%d...\n", s, __FILE__, __func__, \
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__LINE__);\
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printf("PRE malloc\n"); \
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print_malloc_map(); \
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ptr = malloc(s); \
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printf("POST malloc (ptr = %p)\n", ptr); \
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print_malloc_map(); \
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ptr; \
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})
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#define calloc(n,s) \
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({ \
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extern void print_malloc_map(void); \
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extern void *calloc(size_t,size_t); \
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void *ptr; \
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printf("calloc(%u, %u) called from %s:%s:%d...\n", n, s, __FILE__, \
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__func__, __LINE__);\
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printf("PRE calloc\n"); \
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print_malloc_map(); \
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ptr = calloc(n,s); \
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printf("POST calloc (ptr = %p)\n", ptr); \
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print_malloc_map(); \
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ptr; \
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})
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#define realloc(p,s) \
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({ \
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extern void print_malloc_map(void); \
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extern void *realloc(void*,size_t); \
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void *ptr; \
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printf("realloc(%p, %u) called from %s:%s:%d...\n", p, s, __FILE__, \
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__func__, __LINE__);\
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printf("PRE realloc\n"); \
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print_malloc_map(); \
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ptr = realloc(p,s); \
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printf("POST realloc (ptr = %p)\n", ptr); \
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print_malloc_map(); \
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ptr; \
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})
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#define memalign(a,s) \
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({ \
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extern void print_malloc_map(void); \
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extern void *memalign(size_t, size_t); \
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void *ptr; \
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printf("memalign(%u, %u) called from %s:%s:%d...\n", a, s, __FILE__, \
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__func__, __LINE__);\
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printf("PRE memalign\n"); \
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print_malloc_map(); \
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ptr = memalign(a,s); \
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printf("POST memalign (ptr = %p)\n", ptr); \
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print_malloc_map(); \
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ptr; \
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})
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#define dma_malloc(s) \
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({ \
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extern void print_malloc_map(void); \
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extern void *dma_malloc(size_t); \
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void *ptr; \
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printf("dma_malloc(%u) called from %s:%s:%d...\n", s, __FILE__, \
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__func__, __LINE__);\
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printf("PRE dma_malloc\n"); \
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print_malloc_map(); \
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ptr = dma_malloc(s); \
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printf("POST dma_malloc (ptr = %p)\n", ptr); \
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print_malloc_map(); \
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ptr; \
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})
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#define dma_memalign(a,s) \
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({ \
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extern void print_malloc_map(void); \
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extern void *dma_memalign(size_t, size_t); \
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void *ptr; \
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printf("dma_memalign(%u, %u) called from %s:%s:%d...\n", a, s, \
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__FILE__, __func__, __LINE__);\
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printf("PRE dma_memalign\n"); \
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print_malloc_map(); \
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ptr = dma_memalign(a,s); \
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printf("POST dma_memalign (ptr = %p)\n", ptr); \
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print_malloc_map(); \
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ptr; \
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})
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#else
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void free(void *ptr);
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void *malloc(size_t size);
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void *calloc(size_t nmemb, size_t size);
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void *realloc(void *ptr, size_t size);
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void *memalign(size_t align, size_t size);
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void *dma_malloc(size_t size);
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void *dma_memalign(size_t align, size_t size);
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#endif
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void init_dma_memory(void *start, u32 size);
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int dma_initialized(void);
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int dma_coherent(void *ptr);
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/** @} */
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/**
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* @defgroup stdlib String conversion functions
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* @{
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*/
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long int strtol(const char *s, char **nptr, int base);
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unsigned long int strtoul(const char *s, char **nptr, int base);
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unsigned long long int strtoull(const char *s, char **nptr, int base);
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long atol(const char *nptr);
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/** @} */
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/**
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* @defgroup rand Random number generator functions
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* @{
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*/
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int rand_r(unsigned int *seed);
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int rand(void);
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void srand(unsigned int seed);
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/** @} */
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/**
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* Stop execution and halt the processor (this function does not return).
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*/
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void halt(void) __attribute__ ((noreturn));
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void exit(int status) __attribute__ ((noreturn));
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#define abort() halt() /**< Alias for the halt() function */
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/** @} */
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void qsort(void *aa, size_t n, size_t es, int (*cmp)(const void *, const void *));
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char *getenv(const char*);
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#endif
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