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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2021-07-28 16:58:17 +0530
committerSiddhesh Poyarekar <siddhesh@sourceware.org>2021-07-28 17:45:14 +0530
commitb8e8bb324a376cd99bb61b6c21f63c395cae9b5d (patch)
tree890c19c4c34237fbe40d0dac187189cd2e83626a /include
parent4aedc25f55eda50010f2932fdb0a533db6f89f61 (diff)
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xmalloc: Fix warnings with gcc analyzer
Tell the compiler that xmalloc family of allocators always return
non-NULL.  xrealloc in locale/programs also always returns non-NULL,
but that conflicts with default realloc behaviour and that of xrealloc
in libsupport, so keep it as is for now and resolve the differences
later.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/programs/xmalloc.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/programs/xmalloc.h b/include/programs/xmalloc.h
index 33871e22ef..5dc6aac57b 100644
--- a/include/programs/xmalloc.h
+++ b/include/programs/xmalloc.h
@@ -23,11 +23,14 @@
 
 /* Prototypes for a few program-wide used functions.  */
 extern void *xmalloc (size_t n)
-  __attribute_malloc__ __attribute_alloc_size__ ((1)) __attr_dealloc_free;
+  __attribute_malloc__ __attribute_alloc_size__ ((1)) __attr_dealloc_free
+  __returns_nonnull;
 extern void *xcalloc (size_t n, size_t s)
-  __attribute_malloc__ __attribute_alloc_size__ ((1, 2)) __attr_dealloc_free;
+  __attribute_malloc__ __attribute_alloc_size__ ((1, 2)) __attr_dealloc_free
+  __returns_nonnull;
 extern void *xrealloc (void *o, size_t n)
   __attribute_malloc__ __attribute_alloc_size__ ((2)) __attr_dealloc_free;
-extern char *xstrdup (const char *) __attribute_malloc__ __attr_dealloc_free;
+extern char *xstrdup (const char *) __attribute_malloc__ __attr_dealloc_free
+  __returns_nonnull;
 
 #endif /* xmalloc.h */