GNU C Library master sources branch master updated. glibc-2.20-309-gdf7ecc6

[torvald at sourceware dot org]

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=df7ecc6bd2a3b93441287eff5ad9feed84df7373

commit df7ecc6bd2a3b93441287eff5ad9feed84df7373
Author: Torvald Riegel <triegel@redhat.com>
Date:   Mon Dec 8 18:29:18 2014 +0100

    Remove custom pthread_once implementation on sh.

diff --git a/ChangeLog b/ChangeLog
index ea4e555..7cd1a45 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-12-09  Torvald Riegel  <triegel@redhat.com>
+
+	* sysdeps/unix/sysv/linux/sh/pthread_once.S: Remove file.
+
 2014-12-08  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
 	* libio/tst-ftell-active-handler.c (do_ftell_test): Fix wide-character
diff --git a/sysdeps/unix/sysv/linux/sh/pthread_once.S b/sysdeps/unix/sysv/linux/sh/pthread_once.S
deleted file mode 100644
index b22cf44..0000000
--- a/sysdeps/unix/sysv/linux/sh/pthread_once.S
+++ /dev/null
@@ -1,257 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <unwindbuf.h>
-#include <sysdep.h>
-#include <kernel-features.h>
-#include <lowlevellock.h>
-#include "lowlevel-atomic.h"
-
-
-	.comm	__fork_generation, 4, 4
-
-	.text
-	.globl	__pthread_once
-	.type	__pthread_once,@function
-	.align	5
-	cfi_startproc
-__pthread_once:
-	mov.l	@r4, r0
-	tst	#2, r0
-	bt	1f
-	rts
-	 mov	#0, r0
-
-1:
-	mov.l	r12, @-r15
-	cfi_adjust_cfa_offset (4)
-	cfi_rel_offset (r12, 0)
-	mov.l	r9, @-r15
-	cfi_adjust_cfa_offset (4)
-	cfi_rel_offset (r9, 0)
-	mov.l	r8, @-r15
-	cfi_adjust_cfa_offset (4)
-	cfi_rel_offset (r8, 0)
-	sts.l	pr, @-r15
-	cfi_adjust_cfa_offset (4)
-	cfi_rel_offset (pr, 0)
-	mov	r5, r8
-	mov	r4, r9
-
-	/* Not yet initialized or initialization in progress.
-	   Get the fork generation counter now.  */
-6:
-	mov.l	@r4, r1
-	mova	.Lgot, r0
-	mov.l	.Lgot, r12
-	add	r0, r12
-
-5:
-	mov	r1, r0
-
-	tst	#2, r0
-	bf	4f
-
-	and	#3, r0
-	mov.l	.Lfgen, r2
-#ifdef PIC
-	add	r12, r2
-#endif
-	mov.l	@r2, r3
-	or	r3, r0
-	or	#1, r0
-	mov	r0, r3
-	mov	r1, r5
-
-	CMPXCHG (r5, @r4, r3, r2)
-	bf	5b
-
-	/* Check whether another thread already runs the initializer.  */
-	mov	r2, r0
-	tst	#1, r0
-	bt	3f	/* No -> do it.  */
-
-	/* Check whether the initializer execution was interrupted
-	   by a fork.  */
-	xor	r3, r0
-	mov	#-4, r1	/* -4 = 0xfffffffc */
-	tst	r1, r0
-	bf	3f	/* Different for generation -> run initializer.  */
-
-	/* Somebody else got here first.  Wait.  */
-#ifdef __ASSUME_PRIVATE_FUTEX
-	mov	#(FUTEX_PRIVATE_FLAG|FUTEX_WAIT), r5
-	extu.b	r5, r5
-#else
-	stc	gbr, r1
-	mov.w	.Lpfoff, r2
-	add	r2, r1
-	mov.l	@r1, r5
-# if FUTEX_WAIT != 0
-	mov	#FUTEX_WAIT, r0
-	or	r0, r5
-# endif
-#endif
-	mov	r3, r6
-	mov	#0, r7
-	mov	#SYS_futex, r3
-	extu.b	r3, r3
-	trapa	#0x14
-	SYSCALL_INST_PAD
-	bra	6b
-	 nop
-
-	.align	2
-.Lgot:
-	.long	_GLOBAL_OFFSET_TABLE_
-#ifdef PIC
-.Lfgen:
-	.long	__fork_generation@GOTOFF
-#else
-.Lfgen:
-	.long	__fork_generation
-#endif
-
-3:
-	/* Call the initializer function after setting up the
-	   cancellation handler.  Note that it is not possible here
-	   to use the unwind-based cleanup handling.  This would require
-	   that the user-provided function and all the code it calls
-	   is compiled with exceptions.  Unfortunately this cannot be
-	   guaranteed.  */
-	add	#-UNWINDBUFSIZE, r15
-	cfi_adjust_cfa_offset (UNWINDBUFSIZE)
-
-	mov.l	.Lsigsetjmp, r1
-	mov	#UWJMPBUF, r4
-	add	r15, r4
-	bsrf	r1
-	 mov	#0, r5
-.Lsigsetjmp0:
-	tst	r0, r0
-	bf	7f
-
-	mov.l	.Lcpush, r1
-	bsrf	r1
-	 mov	r15, r4
-.Lcpush0:
-
-	/* Call the user-provided initialization function.  */
-	jsr	@r8
-	 nop
-
-	/* Pop the cleanup handler.  */
-	mov.l	.Lcpop, r1
-	bsrf	r1
-	 mov	r15, r4
-.Lcpop0:
-
-	add	#UNWINDBUFSIZE, r15
-	cfi_adjust_cfa_offset (-UNWINDBUFSIZE)
-
-	/* Sucessful run of the initializer.  Signal that we are done.  */
-	INC (@r9, r2)
-	/* Wake up all other threads.  */
-	mov	r9, r4
-#ifdef __ASSUME_PRIVATE_FUTEX
-	mov	#(FUTEX_PRIVATE_FLAG|FUTEX_WAKE), r5
-	extu.b	r5, r5
-#else
-	stc	gbr, r1
-	mov.w	.Lpfoff, r2
-	add	r2, r1
-	mov.l	@r1, r5
-	mov	#FUTEX_WAKE, r0
-	or	r0, r5
-#endif
-	mov	#-1, r6
-	shlr	r6		/* r6 = 0x7fffffff */
-	mov	#0, r7
-	mov	#SYS_futex, r3
-	extu.b	r3, r3
-	trapa	#0x14
-	SYSCALL_INST_PAD
-
-4:
-	lds.l	@r15+, pr
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (pr)
-	mov.l	@r15+, r8
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (r8)
-	mov.l	@r15+, r9
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (r9)
-	mov.l	@r15+, r12
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (r12)
-	rts
-	 mov	#0, r0
-
-7:
-	/* __sigsetjmp returned for the second time.  */
-	cfi_adjust_cfa_offset (UNWINDBUFSIZE+16)
-	cfi_offset (r12, -4)
-	cfi_offset (r9, -8)
-	cfi_offset (r8, -12)
-	cfi_offset (pr, -16)
-	mov	#0, r7
-	mov.l	r7, @r9
-	mov	r9, r4
-#ifdef __ASSUME_PRIVATE_FUTEX
-	mov	#(FUTEX_PRIVATE_FLAG|FUTEX_WAKE), r5
-#else
-	stc	gbr, r1
-	mov.w	.Lpfoff, r2
-	add	r2, r1
-	mov.l	@r1, r5
-	mov	#FUTEX_WAKE, r0
-	or	r0, r5
-#endif
-	extu.b	r5, r5
-	mov	#-1, r6
-	shlr	r6		/* r6 = 0x7fffffff */
-	mov	#SYS_futex, r3
-	extu.b	r3, r3
-	trapa	#0x14
-	SYSCALL_INST_PAD
-
-	mov.l	.Lunext, r1
-	bsrf	r1
-	 mov	r15, r4
-.Lunext0:
-	/* NOTREACHED */
-	sleep
-	cfi_endproc
-
-#ifndef __ASSUME_PRIVATE_FUTEX
-.Lpfoff:
-	.word	PRIVATE_FUTEX - TLS_PRE_TCB_SIZE
-#endif
-	.align	2
-.Lsigsetjmp:
-	.long	__sigsetjmp@PLT-(.Lsigsetjmp0-.)
-.Lcpush:
-	.long	HIDDEN_JUMPTARGET(__pthread_register_cancel)-.Lcpush0
-.Lcpop:
-	.long	HIDDEN_JUMPTARGET(__pthread_unregister_cancel)-.Lcpop0
-.Lunext:
-	.long	HIDDEN_JUMPTARGET(__pthread_unwind_next)-.Lunext0
-	.size	__pthread_once,.-__pthread_once
-
-hidden_def (__pthread_once)
-strong_alias (__pthread_once, pthread_once)

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                 |    4 +
 sysdeps/unix/sysv/linux/sh/pthread_once.S |  257 -----------------------------
 2 files changed, 4 insertions(+), 257 deletions(-)
 delete mode 100644 sysdeps/unix/sysv/linux/sh/pthread_once.S


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