From ae235f94bd8e004d0501d67e87e1486b2df2c971 Mon Sep 17 00:00:00 2001 From: pfg Date: Tue, 7 Apr 2015 14:47:27 +0000 Subject: [PATCH] Make use of allocation attributes in system headers. Start using 'alloc_size' attribute in the allocator functions. This is useful as it helps the compiler generate warnings on suspicious code and can also enable some small optimizations. This is based on r281130, which brought similar enhnacements to the standard libc headers. --- sys/sys/malloc.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/sys/sys/malloc.h b/sys/sys/malloc.h index dcb4290a8ac..6b8a9c08eaa 100644 --- a/sys/sys/malloc.h +++ b/sys/sys/malloc.h @@ -173,9 +173,11 @@ typedef void malloc_type_list_func_t(struct malloc_type *, void *); void contigfree(void *addr, unsigned long size, struct malloc_type *type); void *contigmalloc(unsigned long size, struct malloc_type *type, int flags, vm_paddr_t low, vm_paddr_t high, unsigned long alignment, - vm_paddr_t boundary) __malloc_like; + vm_paddr_t boundary) __malloc_like __result_use_check + __alloc_size(1); void free(void *addr, struct malloc_type *type); -void *malloc(unsigned long size, struct malloc_type *type, int flags) __malloc_like; +void *malloc(unsigned long size, struct malloc_type *type, int flags) + __malloc_like __result_use_check __alloc_size(1); void malloc_init(void *); int malloc_last_fail(void); void malloc_type_allocated(struct malloc_type *type, unsigned long size); @@ -183,9 +185,9 @@ void malloc_type_freed(struct malloc_type *type, unsigned long size); void malloc_type_list(malloc_type_list_func_t *, void *); void malloc_uninit(void *); void *realloc(void *addr, unsigned long size, struct malloc_type *type, - int flags); + int flags) __result_use_check __alloc_size(2); void *reallocf(void *addr, unsigned long size, struct malloc_type *type, - int flags); + int flags) __alloc_size(2); struct malloc_type *malloc_desc2type(const char *desc); #endif /* _KERNEL */ -- 2.45.0