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authorFlorian Weimer <fweimer@redhat.com>2017-06-14 08:11:22 +0200
committerFlorian Weimer <fweimer@redhat.com>2017-06-20 06:27:09 +0200
commitadc7e06fb412a2a1ee52f8cb788caf436335b9f3 (patch)
tree0d1157643296392a4752c58ab3401e1700b143b7
parent3776f38fcd267c127ba5eb222e2c614c191744aa (diff)
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i686: Add missing IS_IN (libc) guards to vectorized strcspn
Since commit d957c4d3fa48d685ff2726c605c988127ef99395 (i386: Compile
rtld-*.os with -mno-sse -mno-mmx -mfpmath=387), vector intrinsics can
no longer be used in ld.so, even if the compiled code never makes it
into the final ld.so link.  This commit adds the missing IS_IN (libc)
guard to the SSE 4.2 strcspn implementation, so that it can be used from
ld.so in the future.

(cherry picked from commit 69052a3a95da37169a08f9e59b2cc1808312753c)
-rw-r--r--ChangeLog5
-rw-r--r--sysdeps/i386/i686/multiarch/strcspn-c.c6
-rw-r--r--sysdeps/i386/i686/multiarch/varshift.c4
3 files changed, 12 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index 85f1e0a495..73546da9e9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-06-14  Florian Weimer  <fweimer@redhat.com>
+
+	* sysdeps/i386/i686/multiarch/strcspn-c.c: Add IS_IN (libc) guard.
+	* sysdeps/i386/i686/multiarch/varshift.c: Likewise.
+
 2017-03-07  Siddhesh Poyarekar  <siddhesh@sourceware.org>
 
 	[BZ #21209]
diff --git a/sysdeps/i386/i686/multiarch/strcspn-c.c b/sysdeps/i386/i686/multiarch/strcspn-c.c
index 6d61e190a8..ec230fb383 100644
--- a/sysdeps/i386/i686/multiarch/strcspn-c.c
+++ b/sysdeps/i386/i686/multiarch/strcspn-c.c
@@ -1,2 +1,4 @@
-#define __strcspn_sse2 __strcspn_ia32
-#include <sysdeps/x86_64/multiarch/strcspn-c.c>
+#if IS_IN (libc)
+# define __strcspn_sse2 __strcspn_ia32
+# include <sysdeps/x86_64/multiarch/strcspn-c.c>
+#endif
diff --git a/sysdeps/i386/i686/multiarch/varshift.c b/sysdeps/i386/i686/multiarch/varshift.c
index 7760b966e2..6742a35d41 100644
--- a/sysdeps/i386/i686/multiarch/varshift.c
+++ b/sysdeps/i386/i686/multiarch/varshift.c
@@ -1 +1,3 @@
-#include <sysdeps/x86_64/multiarch/varshift.c>
+#if IS_IN (libc)
+# include <sysdeps/x86_64/multiarch/varshift.c>
+#endif