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* [glibc/google/grte/v5-2.27/master] Add clang placeholders for va_arg_pack
@ 2021-08-28 0:36 Fangrui Song
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From: Fangrui Song @ 2021-08-28 0:36 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=bc79ff3412e33f8c014404ad177ac6545fc0e13d
commit bc79ff3412e33f8c014404ad177ac6545fc0e13d
Author: Stan Shebs <stanshebs@google.com>
Date: Mon Jan 22 12:30:55 2018 -0800
Add clang placeholders for va_arg_pack
Diff:
---
misc/sys/cdefs.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index af103fdb8a..61deb03df1 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -354,9 +354,14 @@
/* GCC 4.3 and above allow passing all anonymous arguments of an
__extern_always_inline function to some other vararg function. */
#if __GNUC_PREREQ (4,3)
+#if defined(__clang__)
+# define __va_arg_pack() __VA_ARGS__
+# define __va_arg_pack_len() 0
+#else
# define __va_arg_pack() __builtin_va_arg_pack ()
# define __va_arg_pack_len() __builtin_va_arg_pack_len ()
#endif
+#endif
/* It is possible to compile containing GCC extensions even if GCC is
run in pedantic mode if the uses are carefully marked using the
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