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* [glibc/google/grte/v5-2.27/master] As with gettimeofday, avoid vdso for clang-compiled time()
@ 2021-08-28  0:39 Fangrui Song
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From: Fangrui Song @ 2021-08-28  0:39 UTC (permalink / raw)
  To: glibc-cvs

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d41bed3ce0c9138608269631ba65ae782108669a

commit d41bed3ce0c9138608269631ba65ae782108669a
Author: Stan Shebs <stanshebs@google.com>
Date:   Tue Mar 13 11:37:02 2018 -0700

    As with gettimeofday, avoid vdso for clang-compiled time()

Diff:
---
 sysdeps/unix/sysv/linux/x86/time.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sysdeps/unix/sysv/linux/x86/time.c b/sysdeps/unix/sysv/linux/x86/time.c
index d19cccd6f6..124bd967e1 100644
--- a/sysdeps/unix/sysv/linux/x86/time.c
+++ b/sysdeps/unix/sysv/linux/x86/time.c
@@ -18,7 +18,8 @@
 
 #include <time.h>
 
-#ifdef SHARED
+/* Clang ifunc support works, but differently enough that this code breaks.  */
+#if defined(SHARED) && !defined(__clang__)
 
 #include <dl-vdso.h>
 #include <errno.h>
@@ -57,3 +58,5 @@ time (time_t *t)
 }
 
 #endif
+
+libc_hidden_weak (time)


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