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-rw-r--r--ChangeLog9
-rw-r--r--include/ruby/defines.h16
-rw-r--r--include/ruby/ruby.h2
3 files changed, 21 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog
index 4bc30eeacb..0f388cd96d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+Sat May 4 04:13:27 2013 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
+
+ * include/ruby/defines.h (RUBY_ATTR_ALLOC_SIZE): New for
+ attribute((alloc_size(params))).
+
+ * include/ruby/defines.h (xmalloc, xmalloc2, xcalloc)
+ (xrealloc, xrealloc2): Annotated by RUBY_ATTR_ALLOC_SIZE.
+ * include/ruby/ruby.h (rb_alloc_tmp_buffer): ditto.
+
Fri May 3 19:32:13 2013 Takeyuki FUJIOKA <xibbar@ruby-lang.org>
* lib/cgi/util.rb: All class methods moduleized.
diff --git a/include/ruby/defines.h b/include/ruby/defines.h
index f6fe2c9832..ec6a1a94d5 100644
--- a/include/ruby/defines.h
+++ b/include/ruby/defines.h
@@ -106,11 +106,17 @@ RUBY_SYMBOL_EXPORT_BEGIN
#define xrealloc2 ruby_xrealloc2
#define xfree ruby_xfree
-void *xmalloc(size_t);
-void *xmalloc2(size_t,size_t);
-void *xcalloc(size_t,size_t);
-void *xrealloc(void*,size_t);
-void *xrealloc2(void*,size_t,size_t);
+#if defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 3
+# define RUBY_ATTR_ALLOC_SIZE(params) __attribute__ ((__alloc_size__ params))
+#else
+# define RUBY_ATTR_ALLOC_SIZE(params)
+#endif
+
+void *xmalloc(size_t) RUBY_ATTR_ALLOC_SIZE((1));
+void *xmalloc2(size_t,size_t) RUBY_ATTR_ALLOC_SIZE((1,2));
+void *xcalloc(size_t,size_t) RUBY_ATTR_ALLOC_SIZE((1,2));
+void *xrealloc(void*,size_t) RUBY_ATTR_ALLOC_SIZE((2));
+void *xrealloc2(void*,size_t,size_t) RUBY_ATTR_ALLOC_SIZE((2,3));
void xfree(void*);
#define STRINGIZE(expr) STRINGIZE0(expr)
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 43c5de6057..c01242e274 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -1210,7 +1210,7 @@ rb_num2char_inline(VALUE x)
#define ALLOCA_N(type,n) ((type*)alloca(sizeof(type)*(n)))
-void *rb_alloc_tmp_buffer(volatile VALUE *store, long len);
+void *rb_alloc_tmp_buffer(volatile VALUE *store, long len) RUBY_ATTR_ALLOC_SIZE((2));
void rb_free_tmp_buffer(volatile VALUE *store);
/* allocates _n_ bytes temporary buffer and stores VALUE including it
* in _v_. _n_ may be evaluated twice. */