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* [glibc/release/2.33/master] x86: Put wcs{n}len-sse4.1 in the sse4.1 text section
@ 2022-07-19 5:54 Sunil Pandey
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From: Sunil Pandey @ 2022-07-19 5:54 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=44ec1e10caaf2e74eeedae384eb3578d7c8d51fd
commit 44ec1e10caaf2e74eeedae384eb3578d7c8d51fd
Author: Noah Goldstein <goldstein.w.n@gmail.com>
Date: Fri Jun 24 09:42:15 2022 -0700
x86: Put wcs{n}len-sse4.1 in the sse4.1 text section
Previously was missing but the two implementations shouldn't get in
the sse2 (generic) text section.
(cherry picked from commit afc6e4328ff80973bde50d5401691b4c4b2e522c)
Diff:
---
sysdeps/x86_64/multiarch/strlen-vec.S | 6 +++++-
sysdeps/x86_64/multiarch/wcslen-sse4_1.S | 1 +
sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S | 1 +
3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/sysdeps/x86_64/multiarch/strlen-vec.S b/sysdeps/x86_64/multiarch/strlen-vec.S
index 031753a917..762f475502 100644
--- a/sysdeps/x86_64/multiarch/strlen-vec.S
+++ b/sysdeps/x86_64/multiarch/strlen-vec.S
@@ -28,6 +28,10 @@
# define SHIFT_RETURN
#endif
+#ifndef SECTION
+# define SECTION(p) p
+#endif
+
/* Long lived register in strlen(s), strnlen(s, n) are:
%xmm3 - zero
@@ -37,7 +41,7 @@
*/
-.text
+ .section SECTION(.text),"ax",@progbits
ENTRY(strlen)
/* Test 64 bytes from %rax for zero. Save result as bitmask in %rdx. */
diff --git a/sysdeps/x86_64/multiarch/wcslen-sse4_1.S b/sysdeps/x86_64/multiarch/wcslen-sse4_1.S
index 7e62621afc..e306a77f51 100644
--- a/sysdeps/x86_64/multiarch/wcslen-sse4_1.S
+++ b/sysdeps/x86_64/multiarch/wcslen-sse4_1.S
@@ -1,4 +1,5 @@
#define AS_WCSLEN
#define strlen __wcslen_sse4_1
+#define SECTION(p) p##.sse4.1
#include "strlen-vec.S"
diff --git a/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S b/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S
index 5fa51fe07c..d2f7dd6e22 100644
--- a/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S
+++ b/sysdeps/x86_64/multiarch/wcsnlen-sse4_1.S
@@ -1,5 +1,6 @@
#define AS_WCSLEN
#define AS_STRNLEN
#define strlen __wcsnlen_sse4_1
+#define SECTION(p) p##.sse4.1
#include "strlen-vec.S"
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