diff options
Diffstat (limited to 'lib/libutils/isoc/include/malloc.h')
-rw-r--r-- | lib/libutils/isoc/include/malloc.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/lib/libutils/isoc/include/malloc.h b/lib/libutils/isoc/include/malloc.h new file mode 100644 index 0000000..b32d221 --- /dev/null +++ b/lib/libutils/isoc/include/malloc.h @@ -0,0 +1,108 @@ +/* + * Copyright (c) 2014, STMicroelectronics International N.V. + * All rights reserved. + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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 MALLOC_H +#define MALLOC_H + +#include <stddef.h> +#include <types_ext.h> + +extern unsigned int __malloc_spinlock; + +void free(void *ptr); + +#ifdef ENABLE_MDBG + +void *mdbg_malloc(const char *fname, int lineno, size_t size); +void *mdbg_calloc(const char *fname, int lineno, size_t nmemb, size_t size); +void *mdbg_realloc(const char *fname, int lineno, void *ptr, size_t size); +void *mdbg_memalign(const char *fname, int lineno, size_t alignment, + size_t size); + +void mdbg_check(int bufdump); + +#define malloc(size) mdbg_malloc(__FILE__, __LINE__, (size)) +#define calloc(nmemb, size) \ + mdbg_calloc(__FILE__, __LINE__, (nmemb), (size)) +#define realloc(ptr, size) \ + mdbg_realloc(__FILE__, __LINE__, (ptr), (size)) +#define memalign(alignment, size) \ + mdbg_memalign(__FILE__, __LINE__, (alignment), (size)) + +#else + +void *malloc(size_t size); +void *calloc(size_t nmemb, size_t size); +void *realloc(void *ptr, size_t size); +void *memalign(size_t alignment, size_t size); + +#define mdbg_check(x) do { } while (0) + +#endif + + +/* + * Returns true if the supplied memory area is within a buffer + * previously allocated (and not freed yet). + * + * Used internally by TAs + */ +bool malloc_buffer_is_within_alloced(void *buf, size_t len); + +/* + * Returns true if the supplied memory area is overlapping the area used + * for heap. + * + * Used internally by TAs + */ +bool malloc_buffer_overlaps_heap(void *buf, size_t len); + +/* + * Adds a pool of memory to allocate from. + */ +void malloc_add_pool(void *buf, size_t len); + +#ifdef CFG_WITH_STATS +/* + * Get/reset allocation statistics + */ + +#define TEE_ALLOCATOR_DESC_LENGTH 32 +struct malloc_stats { + char desc[TEE_ALLOCATOR_DESC_LENGTH]; + uint32_t allocated; /* Bytes currently allocated */ + uint32_t max_allocated; /* Tracks max value of allocated */ + uint32_t size; /* Total size for this allocator */ + uint32_t num_alloc_fail; /* Number of failed alloc requests */ + uint32_t biggest_alloc_fail; /* Size of biggest failed alloc */ + uint32_t biggest_alloc_fail_used; /* Alloc bytes when above occurred */ +}; + +void malloc_get_stats(struct malloc_stats *stats); +void malloc_reset_stats(void); +#endif /* CFG_WITH_STATS */ + +#endif /* MALLOC_H */ |