Commit: 58d2203317865bfaebec801d41e57988a3e46683 Author: Nuno Lopes <nlop...@php.net> Wed, 23 May 2012 22:18:01 -0400 Parents: 8208462fc1ffcc575aa631ffb4cda22e2247521a Branches: master
Link: http://git.php.net/?p=php-src.git;a=commitdiff;h=58d2203317865bfaebec801d41e57988a3e46683 Log: add support for the alloc_size __attribute__ (through ZEND_ATTRIBUTE_ALLOC_SIZE and ZEND_ATTRIBUTE_ALLOC_SIZE2 requires GCC >= 4.3 or clang >= 3.2 to perform anything useful Changed paths: M Zend/zend.h M Zend/zend_alloc.c M Zend/zend_alloc.h Diff: diff --git a/Zend/zend.h b/Zend/zend.h index 3226f8c..39bf5be 100644 --- a/Zend/zend.h +++ b/Zend/zend.h @@ -133,6 +133,11 @@ char *alloca (); # endif #endif +/* Compatibility with non-clang compilers */ +#ifndef __has_attribute +# define __has_attribute(x) 0 +#endif + /* GCC x.y.z supplies __GNUC__ = x and __GNUC_MINOR__ = y */ #ifdef __GNUC__ # define ZEND_GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__) @@ -146,6 +151,14 @@ char *alloca (); # define ZEND_ATTRIBUTE_MALLOC #endif +#if ZEND_GCC_VERSION >= 4003 || __has_attribute(alloc_size) +# define ZEND_ATTRIBUTE_ALLOC_SIZE(X) __attribute__ ((alloc_size(X))) +# define ZEND_ATTRIBUTE_ALLOC_SIZE2(X,Y) __attribute__ ((alloc_size(X,Y))) +#else +# define ZEND_ATTRIBUTE_ALLOC_SIZE(X) +# define ZEND_ATTRIBUTE_ALLOC_SIZE2(X,Y) +#endif + #if ZEND_GCC_VERSION >= 2007 # define ZEND_ATTRIBUTE_FORMAT(type, idx, first) __attribute__ ((format(type, idx, first))) #else diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c index 66cd23c..a29350d 100644 --- a/Zend/zend_alloc.c +++ b/Zend/zend_alloc.c @@ -658,9 +658,9 @@ static unsigned int _mem_block_end_magic = 0; #define ZEND_MM_LARGE_BUCKET_INDEX(S) zend_mm_high_bit(S) -static void *_zend_mm_alloc_int(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; +static void *_zend_mm_alloc_int(zend_mm_heap *heap, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(2); static void _zend_mm_free_int(zend_mm_heap *heap, void *p ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); -static void *_zend_mm_realloc_int(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); +static void *_zend_mm_realloc_int(zend_mm_heap *heap, void *p, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(3); static inline unsigned int zend_mm_high_bit(size_t _size) { diff --git a/Zend/zend_alloc.h b/Zend/zend_alloc.h index b8b800e..6b071c2 100644 --- a/Zend/zend_alloc.h +++ b/Zend/zend_alloc.h @@ -54,12 +54,12 @@ BEGIN_EXTERN_C() ZEND_API char *zend_strndup(const char *s, unsigned int length) ZEND_ATTRIBUTE_MALLOC; -ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; +ZEND_API void *_emalloc(size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE(1); ZEND_API void *_safe_emalloc(size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; ZEND_API void *_safe_malloc(size_t nmemb, size_t size, size_t offset) ZEND_ATTRIBUTE_MALLOC; ZEND_API void _efree(void *ptr ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); -ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; -ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); +ZEND_API void *_ecalloc(size_t nmemb, size_t size ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC ZEND_ATTRIBUTE_ALLOC_SIZE2(1,2); +ZEND_API void *_erealloc(void *ptr, size_t size, int allow_failure ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_ALLOC_SIZE(2); ZEND_API void *_safe_erealloc(void *ptr, size_t nmemb, size_t size, size_t offset ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC); ZEND_API void *_safe_realloc(void *ptr, size_t nmemb, size_t size, size_t offset); ZEND_API char *_estrdup(const char *s ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC) ZEND_ATTRIBUTE_MALLOC; -- PHP CVS Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
