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authorJeff Layton <jlayton@redhat.com>2013-07-19 06:33:40 -0400
committerChristopher Li <sparse@chrisli.org>2013-07-25 04:32:07 -0700
commit5aa922d3919897481c8e65d9603ffc55e551fc19 (patch)
tree5bb38471d1bea711696261551bce676fa6a2d530 /validation
parent5a3bd40c1e9976c0896ad2d198e202a515dcf194 (diff)
downloadsparse-dev-5aa922d3919897481c8e65d9603ffc55e551fc19.tar.gz
sparse: add __builtin_va_arg_pack() and __builtin_va_arg_pack_len()
this patch stops sparse from complaining about them not being defined: /usr/include/bits/stdio2.h:98:25: error: undefined identifier '__builtin_va_arg_pack' /usr/include/bits/stdio2.h:98:25: error: not a function <noident> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Christopher Li <sparse@chrisli.org>
Diffstat (limited to 'validation')
-rw-r--r--validation/builtin_va_arg_pack.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/validation/builtin_va_arg_pack.c b/validation/builtin_va_arg_pack.c
new file mode 100644
index 00000000..3426b86b
--- /dev/null
+++ b/validation/builtin_va_arg_pack.c
@@ -0,0 +1,20 @@
+extern void v(int a, ...);
+
+extern inline __attribute__((__always_inline__)) void f(int a, ...)
+{
+ __SIZE_TYPE__ b = __builtin_va_arg_pack_len();
+}
+
+extern inline __attribute__((__always_inline__)) void g(int a, ...)
+{
+ v(a, __builtin_va_arg_pack());
+}
+
+static void h(void)
+{
+ f(0, 0);
+ g(0, 0);
+}
+/*
+ * check-name: __builtin_va_arg_pack()
+ */