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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2016-12-19 23:26:23 +0100
committerWaldemar Brodkorb <wbx@openadk.org>2016-12-20 20:04:02 +0100
commit9ff01fc11a5d10108a10655b1751aa406aedae0a (patch)
tree1af40f23c06db0e3979e03a8d3e7c89451abd121 /include/sys
parentb39b5151b937c4d36ff293b62cee988378245fac (diff)
sys/cdefs.h: add definition of __attribute_alloc_size__
Commit cee0b058fa0b4501b289a2da365182d60314d746 ("add aligned_alloc required for latest gcc libstdc++") added the prototype of aligned_alloc() to <stdlib.h>. This prototype contains '__attribute_alloc_size__ ((2))', but this is not defined anywhere in uClibc-ng. This commit addresses that by adding the relevant definition in <sys/cdefs.h>, borrowed from glibc. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'include/sys')
-rw-r--r--include/sys/cdefs.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
index f725ce98c..6cd38114b 100644
--- a/include/sys/cdefs.h
+++ b/include/sys/cdefs.h
@@ -222,6 +222,15 @@
# define __attribute_malloc__ /* Ignore */
#endif
+/* Tell the compiler which arguments to an allocation function
+ indicate the size of the allocation. */
+#if __GNUC_PREREQ (4, 3)
+# define __attribute_alloc_size__(params) \
+ __attribute__ ((__alloc_size__ params))
+#else
+# define __attribute_alloc_size__(params) /* Ignore. */
+#endif
+
/* At some point during the gcc 2.96 development the `pure' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */