Hide memset/bzero from compiler

Hide memset/bzero from compiler to silence Clang error:

./tester.c:1345:29: error: 'size' argument to memset is '0'; did you mean to transpose the last two arguments? [-Werror,-Wmemset-transposed-args]
 1345 |   (void) memset(one+2, 'y', 0);
      |                             ^
./tester.c:1345:29: note: parenthesize the third argument to silence
./tester.c:1432:16: error: 'size' argument to bzero is '0' [-Werror,-Wsuspicious-bzero]
 1432 |   bzero(one+2, 0);
      |                ^
./tester.c:1432:16: note: parenthesize the second argument to silence

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>

diff --git a/string/tester.c b/string/tester.c
index ee96747280058b41d236ed2fb005994a30478fd3..3e3660777e7c5dfacd66c1ce0dd622acd62dc745 100644 (file)
--- a/string/tester.c
+++ b/string/tester.c
@@ -50,6 +50,15 @@ DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overread");
 #include <strings.h>
 #include <fcntl.h>
 
+static __typeof (bzero) * volatile bzero_indirect = bzero;
+static __typeof (memset) * volatile memset_indirect = memset;
+
+#undef bzero
+#undef memset
+
+#define bzero bzero_indirect
+#define memset memset_indirect
+
 /* This file tests a range of corner cases of string functions,
    including cases where truncation occurs or where sizes specified
    are larger than the actual buffers, which result in various