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* [glibc] x86: Add missing IS_IN (libc) check to strcspn-sse4.c
@ 2022-06-30 3:03 Noah Goldstein
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From: Noah Goldstein @ 2022-06-30 3:03 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0aa294fb887bb5aae4cdfa4b764325466a329131
commit 0aa294fb887bb5aae4cdfa4b764325466a329131
Author: Noah Goldstein <goldstein.w.n@gmail.com>
Date: Wed Jun 29 18:56:17 2022 -0700
x86: Add missing IS_IN (libc) check to strcspn-sse4.c
Was missing to for the multiarch build rtld-strcspn-sse4.os was
being built and exporting symbols:
build/glibc/string/rtld-strcspn-sse4.os:
U ___m128i_shift_right
U __strcspn_generic
0000000000000000 T __strcspn_sse42
U strlen
build/glibc/string/rtld-varshift.os:
0000000000000000 R ___m128i_shift_right
Introduced in:
commit 06e51c8f3de38761f8855700841bc49cf495c8c0
Author: H.J. Lu <hongjiu.lu@intel.com>
Date: Fri Jul 3 02:48:56 2009 -0700
Add SSE4.2 support for strcspn, strpbrk, and strspn on x86-64.
Diff:
---
sysdeps/x86_64/multiarch/strcspn-sse4.c | 39 ++++++++++++++++++---------------
sysdeps/x86_64/multiarch/varshift.c | 5 ++++-
2 files changed, 25 insertions(+), 19 deletions(-)
diff --git a/sysdeps/x86_64/multiarch/strcspn-sse4.c b/sysdeps/x86_64/multiarch/strcspn-sse4.c
index 59f64f9fe8..d11e87ab6c 100644
--- a/sysdeps/x86_64/multiarch/strcspn-sse4.c
+++ b/sysdeps/x86_64/multiarch/strcspn-sse4.c
@@ -16,9 +16,11 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <nmmintrin.h>
-#include <string.h>
-#include "varshift.h"
+#if IS_IN (libc)
+
+# include <nmmintrin.h>
+# include <string.h>
+# include "varshift.h"
/* We use 0x2:
_SIDD_SBYTE_OPS
@@ -52,31 +54,31 @@
when either CFlag or ZFlag is 1. If CFlag == 1, ECX has the offset
X for case 1. */
-#ifndef STRCSPN_GENERIC
-# define STRCSPN_GENERIC __strcspn_generic
-# define STRCSPN_SSE42 __strcspn_sse42
-#endif
+# ifndef STRCSPN_GENERIC
+# define STRCSPN_GENERIC __strcspn_generic
+# define STRCSPN_SSE42 __strcspn_sse42
+# endif
-#ifdef USE_AS_STRPBRK
-# define RETURN(val1, val2) return val1
-#else
-# define RETURN(val1, val2) return val2
-#endif
+# ifdef USE_AS_STRPBRK
+# define RETURN(val1, val2) return val1
+# else
+# define RETURN(val1, val2) return val2
+# endif
extern
-#ifdef USE_AS_STRPBRK
+# ifdef USE_AS_STRPBRK
char *
-#else
+# else
size_t
-#endif
+# endif
STRCSPN_GENERIC (const char *, const char *) attribute_hidden;
-#ifdef USE_AS_STRPBRK
+# ifdef USE_AS_STRPBRK
char *
-#else
+# else
size_t
-#endif
+# endif
__attribute__ ((section (".text.sse4.2")))
STRCSPN_SSE42 (const char *s, const char *a)
{
@@ -161,3 +163,4 @@ start_loop:
aligned += 16;
}
}
+#endif
diff --git a/sysdeps/x86_64/multiarch/varshift.c b/sysdeps/x86_64/multiarch/varshift.c
index d27767520a..5e2f2bdf51 100644
--- a/sysdeps/x86_64/multiarch/varshift.c
+++ b/sysdeps/x86_64/multiarch/varshift.c
@@ -16,7 +16,8 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <stdint.h>
+#if IS_IN (libc)
+# include <stdint.h>
const int8_t ___m128i_shift_right[31] attribute_hidden
__attribute__((aligned(32))) =
@@ -24,3 +25,5 @@ const int8_t ___m128i_shift_right[31] attribute_hidden
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
};
+
+#endif
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