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From 565b8d14a1dc2ce1a9c4110232e1abf88f0572ed Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Fri, 14 Jan 2011 18:17:24 -0600
Subject: [PATCH] nptl: fix TLS support on arm
Signed-off-by: William Pitcock <nenolod@dereferenced.org>
---
libpthread/nptl/sysdeps/arm/Makefile.arch | 2 +
libpthread/nptl/sysdeps/arm/libc-tls.c | 38 +++++++++++++++++++++++++++++
2 files changed, 40 insertions(+), 0 deletions(-)
create mode 100644 libpthread/nptl/sysdeps/arm/libc-tls.c
diff --git a/libpthread/nptl/sysdeps/arm/Makefile.arch b/libpthread/nptl/sysdeps/arm/Makefile.arch
index a8bc1aa..d463253 100644
--- a/libpthread/nptl/sysdeps/arm/Makefile.arch
+++ b/libpthread/nptl/sysdeps/arm/Makefile.arch
@@ -15,3 +15,5 @@ ASFLAGS-pthread_spin_lock.S = -DNOT_IN_libc -DIS_IN_libpthread
ASFLAGS-pthread_spin_trylock.S = -DNOT_IN_libc -DIS_IN_libpthread
ASFLAGS-aeabi_read_tp.S = -DNOT_IN_libc=1
+libc_arch_a_CSRC = libc-tls.c
+
diff --git a/libpthread/nptl/sysdeps/arm/libc-tls.c b/libpthread/nptl/sysdeps/arm/libc-tls.c
new file mode 100644
index 0000000..a9e6d4f
--- /dev/null
+++ b/libpthread/nptl/sysdeps/arm/libc-tls.c
@@ -0,0 +1,38 @@
+/* Thread-local storage handling in the ELF dynamic linker. MIPS version.
+ Copyright (C) 2005 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdeps/generic/libc-tls.c>
+#include <dl-tls.h>
+
+#if USE_TLS
+
+/* On ARM, linker optimizations are not required, so __tls_get_addr
+ can be called even in statically linked binaries. In this case module
+ must be always 1 and PT_TLS segment exist in the binary, otherwise it
+ would not link. */
+
+void *
+__tls_get_addr (tls_index *ti)
+{
+ dtv_t *dtv = THREAD_DTV ();
+ return (char *) dtv[1].pointer.val + ti->ti_offset;
+}
+
+#endif
+
--
1.7.3.5
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