unofficial mirror of libc-alpha@sourceware.org
 help / color / mirror / Atom feed
From: Florian Weimer via Libc-alpha <libc-alpha@sourceware.org>
To: libc-alpha@sourceware.org
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: [PATCH] i386: Remove NO_TLS_DIRECT_SEG_REFS handling
Date: Thu, 28 May 2020 11:12:14 +0200	[thread overview]
Message-ID: <87zh9se841.fsf@oldenburg2.str.redhat.com> (raw)

This was needed for 32-bit PV Xen, which has been superseded by this
point according to Xen developers.

---
 sysdeps/i386/Makefile                      |  4 ----
 sysdeps/i386/i686/multiarch/strcmp-sse4.S  | 20 --------------------
 sysdeps/i386/i686/multiarch/strcmp-ssse3.S | 20 --------------------
 3 files changed, 44 deletions(-)

diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile
index c0a4fe15d4..b9b1367f60 100644
--- a/sysdeps/i386/Makefile
+++ b/sysdeps/i386/Makefile
@@ -33,10 +33,6 @@ else
 stack-align-test-flags += -malign-double
 endif
 
-ifneq (,$(filter -mno-tls-direct-seg-refs,$(CFLAGS)))
-defines += -DNO_TLS_DIRECT_SEG_REFS
-endif
-
 ifeq ($(subdir),elf)
 sysdep-dl-routines += tlsdesc dl-tlsdesc
 
diff --git a/sysdeps/i386/i686/multiarch/strcmp-sse4.S b/sysdeps/i386/i686/multiarch/strcmp-sse4.S
index 5454cba2e3..802609839a 100644
--- a/sysdeps/i386/i686/multiarch/strcmp-sse4.S
+++ b/sysdeps/i386/i686/multiarch/strcmp-sse4.S
@@ -101,19 +101,9 @@ ENTRY (__strcasecmp_sse4_2)
 	PUSH	(%ebx)
 	LOAD_PIC_REG(bx)
 	movl	__libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	addl	%gs:0, %eax
-	movl	(%eax), %eax
-#  else
 	movl	%gs:(%eax), %eax
-#  endif
 # else
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	movl	%gs:0, %eax
-	movl	__libc_tsd_LOCALE@NTPOFF(%eax), %eax
-#  else
 	movl	%gs:__libc_tsd_LOCALE@NTPOFF, %eax
-#  endif
 # endif
 # if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
 	movl	LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
@@ -138,19 +128,9 @@ ENTRY (__strncasecmp_sse4_2)
 	PUSH	(%ebx)
 	LOAD_PIC_REG(bx)
 	movl	__libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	addl	%gs:0, %eax
-	movl	(%eax), %eax
-#  else
 	movl	%gs:(%eax), %eax
-#  endif
 # else
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	movl	%gs:0, %eax
-	movl	__libc_tsd_LOCALE@NTPOFF(%eax), %eax
-#  else
 	movl	%gs:__libc_tsd_LOCALE@NTPOFF, %eax
-#  endif
 # endif
 # if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
 	movl	LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
diff --git a/sysdeps/i386/i686/multiarch/strcmp-ssse3.S b/sysdeps/i386/i686/multiarch/strcmp-ssse3.S
index 8e830dec6f..1b9d53c1fe 100644
--- a/sysdeps/i386/i686/multiarch/strcmp-ssse3.S
+++ b/sysdeps/i386/i686/multiarch/strcmp-ssse3.S
@@ -118,19 +118,9 @@ ENTRY (__strcasecmp_ssse3)
 	PUSH	(%ebx)
 	LOAD_PIC_REG(bx)
 	movl	__libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	addl	%gs:0, %eax
-	movl	(%eax), %eax
-#  else
 	movl	%gs:(%eax), %eax
-#  endif
 # else
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	movl	%gs:0, %eax
-	movl	__libc_tsd_LOCALE@NTPOFF(%eax), %eax
-#  else
 	movl	%gs:__libc_tsd_LOCALE@NTPOFF, %eax
-#  endif
 # endif
 # if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
 	movl	LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax
@@ -155,19 +145,9 @@ ENTRY (__strncasecmp_ssse3)
 	PUSH	(%ebx)
 	LOAD_PIC_REG(bx)
 	movl	__libc_tsd_LOCALE@GOTNTPOFF(%ebx), %eax
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	addl	%gs:0, %eax
-	movl	(%eax), %eax
-#  else
 	movl	%gs:(%eax), %eax
-#  endif
 # else
-#  ifdef NO_TLS_DIRECT_SEG_REFS
-	movl	%gs:0, %eax
-	movl	__libc_tsd_LOCALE@NTPOFF(%eax), %eax
-#  else
 	movl	%gs:__libc_tsd_LOCALE@NTPOFF, %eax
-#  endif
 # endif
 # if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
 	movl	LOCALE_T___LOCALES+LC_CTYPE*4(%eax), %eax


             reply	other threads:[~2020-05-28  9:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-28  9:12 Florian Weimer via Libc-alpha [this message]
2020-05-28  9:46 ` [PATCH] i386: Remove NO_TLS_DIRECT_SEG_REFS handling Andreas Schwab
2020-05-28 11:41 ` Andrew Cooper via Libc-alpha

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/libc/involved.html

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87zh9se841.fsf@oldenburg2.str.redhat.com \
    --to=libc-alpha@sourceware.org \
    --cc=andrew.cooper3@citrix.com \
    --cc=fweimer@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).