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gcc: fix undefined reference to .tdata

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This fix is done in development tree:
366cc86e4f
and will be a part of the next release of ARC GNU tools.
Once that new release happens this patch must be removed.

Fixes:
http://autobuild.buildroot.net/results/8b22ac0dc9e3c1cd44f2fdbe5cc99a41cf77f454/
http://autobuild.buildroot.net/results/37e9c3c79e0a6aea5b89428c2226811ebb3fd611/
http://autobuild.buildroot.net/results/37e9c3c79e0a6aea5b89428c2226811ebb3fd611/
and many others.

Prerequisite:
"ARC: update tools to arc-2015.06 release": http://patchwork.ozlabs.org/patch/495837/

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Anton Kolesov <akolesov@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Alexey Brodkin 2015-07-17 13:12:20 +03:00 committed by Thomas Petazzoni
parent f1ea43c60f
commit 37d019e81a
1 changed files with 42 additions and 0 deletions
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42
package/gcc/arc-2015.06/0001-Differentiate-between-a-bss-TLS-initialized-symbol.patch Normal file
View File

@ -0,0 +1,42 @@
From 366cc86e4f8ff6f00f0b731dc6f78d22c7ac9e0a Mon Sep 17 00:00:00 2001
From: Claudiu Zissulescu <claziss@synopsys.com>
Date: Tue, 7 Jul 2015 17:59:52 +0200
Subject: [PATCH] Differentiate between a bss TLS initialized symbol.
Back-port from https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/commit/366cc86e4f8ff6f00f0b731dc6f78d22c7ac9e0a
This patch fixes "undefined reference to .tdata" observed in many autobuilder
results for ARC.
Once the next release of ARC GNU tools happens this patch must be removed from
Buildroot.
---
gcc/config/arc/arc.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index b6eb3b5..73c3a87 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -5262,10 +5262,15 @@ arc_legitimize_tls_address (rtx addr, enum tls_model model)
{
case TLS_MODEL_LOCAL_DYNAMIC:
rtx base;
- tree base_decl; base_decl
- = lookup_attribute ("tls9", DECL_ATTRIBUTES (SYMBOL_REF_DECL (addr)));
+ tree base_decl, decl;
+ decl = SYMBOL_REF_DECL (addr);
+ base_decl = lookup_attribute ("tls9", DECL_ATTRIBUTES (decl));
const char *base_name; base_name = DTPOFF_ZERO_SYM;
rtvec v;
+
+ if (bss_initializer_p (decl))
+ base_name = ".tbss";
+
if (base_decl && TREE_VALUE (base_decl)
&& TREE_VALUE (TREE_VALUE (base_decl)))
{
--
2.4.3