Commit 37d019e8 authored by Alexey Brodkin's avatar Alexey Brodkin Committed by Thomas Petazzoni
Browse files

gcc: fix undefined reference to .tdata 

This fix is done in development tree:
http://github.com/foss-for-synopsys-dwc-arc-processors/gcc/commit/366cc86e4f8ff6f00f0b731dc6f78d22c7ac9e0a
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: default avatarAlexey 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: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent f1ea43c6

package/gcc/arc-2015.06/0001-Differentiate-between-a-bss-TLS-initialized-symbol.patch

0 → 100644
+42 −0
Original line number Diff line number Diff line 
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