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Use the __alloc_size2 attribute where relevant.

Browse source 
This follows the documented use in GCC. It is basically only relevant for
calloc(3), reallocarray(3) and  mallocarray(9).

Suggested by:	Mark Millard

Reference:
https://docs.freebsd.org/cgi/mid.cgi?9DE674C6-EAA3-4E8A-906F-446E74D82FC4
This commit is contained in:
Pedro F. Giffuni 2018-01-22 01:50:10 +00:00
parent d26c97e2fb
commit b8d1747e75
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=328237
2 changed files with 4 additions and 4 deletions
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6
include/stdlib.h
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@ -92,7 +92,7 @@ long atol(const char *);
void *bsearch(const void *, const void *, size_t,
size_t, int (*)(const void * _Nonnull, const void *));
void *calloc(size_t, size_t) __malloc_like __result_use_check
__alloc_size(1) __alloc_size(2);
__alloc_size2(1, 2);
div_t div(int, int) __pure2;
_Noreturn void exit(int);
void free(void *);
@ -302,8 +302,8 @@ void qsort_r(void *, size_t, size_t, void *,
int (*)(void *, const void *, const void *));
int radixsort(const unsigned char **, int, const unsigned char *,
unsigned);
void *reallocarray(void *, size_t, size_t) __result_use_check __alloc_size(2)
__alloc_size(3);
void *reallocarray(void *, size_t, size_t) __result_use_check
__alloc_size2(2, 3);
void *reallocf(void *, size_t) __result_use_check __alloc_size(2);
int rpmatch(const char *);
void setprogname(const char *);

2
sys/sys/malloc.h
View file

@ -188,7 +188,7 @@ void *malloc_domain(unsigned long size, struct malloc_type *type,
__malloc_like __result_use_check __alloc_size(1);
void *mallocarray(size_t nmemb, size_t size, struct malloc_type *type,
int flags) __malloc_like __result_use_check
__alloc_size(1) __alloc_size(2);
__alloc_size2(1, 2);
void malloc_init(void *);
int malloc_last_fail(void);
void malloc_type_allocated(struct malloc_type *type, unsigned long size);