From: Claudiu Zissulescu <claziss@synopsys.com>
Date: Mon, 1 Feb 2016 17:03:56 +0000 (+0000)
Subject: Fix ARC TLS support.
X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=b125bd17270aca2af4d945ce8477f981dbc27e7e;p=deliverable%2Fbinutils-gdb.git

Fix ARC TLS support.

       * config/tc-arc.c (md_apply_fix): Allow addendum.
        (arc_reloc_op): Allow complex expressions for tpoff.
        (md_apply_fix): Handle resolved TLS local symbol.

	* gas/arc/tls-relocs1.d: New file.
	* gas/arc/tls-relocs1.s: Likewise.
---

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 6e7319d96c..d219d42740 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,12 @@
+2016-01-26  Claudiu Zissulescu  <claziss@synopsys.com>
+
+        * config/tc-arc.c (md_apply_fix): Allow addendum.
+        (arc_reloc_op): Allow complex expressions for tpoff.
+        (md_apply_fix): Handle resolved TLS local symbol.
+
+	* testsuite/gas/arc/tls-relocs1.d: New file.
+	* testsuite/gas/arc/tls-relocs1.s: Likewise.
+
 2016-02-01  Loria  <Loria@phantasia.org>
 
 	PR target/19311
diff --git a/gas/config/tc-arc.c b/gas/config/tc-arc.c
index 40ba0ad18f..20a48f7a75 100644
--- a/gas/config/tc-arc.c
+++ b/gas/config/tc-arc.c
@@ -363,7 +363,7 @@ static const struct arc_reloc_op_tag
   DEF (tlsgd,   BFD_RELOC_ARC_TLS_GD_GOT,	0),
   DEF (tlsie,   BFD_RELOC_ARC_TLS_IE_GOT,	0),
   DEF (tpoff9,  BFD_RELOC_ARC_TLS_LE_S9,	0),
-  DEF (tpoff,   BFD_RELOC_ARC_TLS_LE_32,	0),
+  DEF (tpoff,   BFD_RELOC_ARC_TLS_LE_32,	1),
   DEF (dtpoff9, BFD_RELOC_ARC_TLS_DTPOFF_S9,	0),
   DEF (dtpoff,  BFD_RELOC_ARC_TLS_DTPOFF,	0),
 };
@@ -1301,7 +1301,8 @@ md_apply_fix (fixS *fixP,
     {
     case BFD_RELOC_ARC_TLS_DTPOFF:
     case BFD_RELOC_ARC_TLS_LE_32:
-      fixP->fx_offset = 0;
+      if (fixP->fx_done)
+	break;
       /* Fall through.  */
     case BFD_RELOC_ARC_TLS_GD_GOT:
     case BFD_RELOC_ARC_TLS_IE_GOT:
@@ -1363,6 +1364,12 @@ md_apply_fix (fixS *fixP,
 	 from ld rx,[pcl,@sym@gotpc] to add rx,pcl,@sym@gotpc.  */
       as_bad (_("Unsupported operation on reloc"));
       return;
+
+    case BFD_RELOC_ARC_TLS_DTPOFF:
+    case BFD_RELOC_ARC_TLS_LE_32:
+      gas_assert (!fixP->fx_addsy);
+      gas_assert (!fixP->fx_subsy);
+
     case BFD_RELOC_ARC_GOTOFF:
     case BFD_RELOC_ARC_32_ME:
     case BFD_RELOC_ARC_PC32:
diff --git a/gas/testsuite/gas/arc/tls-relocs1.d b/gas/testsuite/gas/arc/tls-relocs1.d
new file mode 100644
index 0000000000..394487471e
--- /dev/null
+++ b/gas/testsuite/gas/arc/tls-relocs1.d
@@ -0,0 +1,12 @@
+#as: -mcpu=archs
+#objdump: -dr
+
+.*: +file format .*arc.*
+
+
+Disassembly of section .text:
+
+00000000 <foo>:
+   0:	2100 3f82 0000 0000 	add	r2,r25,0
+			4: R_ARC_TLS_LE_32	a\+0x30
+   8:	2000 0f80 0000 003c 	add	r0,r0,0x3c
diff --git a/gas/testsuite/gas/arc/tls-relocs1.s b/gas/testsuite/gas/arc/tls-relocs1.s
new file mode 100644
index 0000000000..fc71e660e5
--- /dev/null
+++ b/gas/testsuite/gas/arc/tls-relocs1.s
@@ -0,0 +1,24 @@
+;;; TLS tests: check tpoff addendum and resolving local TLS symbols.
+
+	.cpu HS
+	.global		a
+	.section	.tbss,"awT",@nobits
+	.align		4
+	.type		a, @object
+	.size		a, 60
+a:
+	.zero		 60
+
+	.type		local_tls_var, @object
+	.size		local_tls_var, 4
+local_tls_var:
+	.zero		4
+
+
+	.section	.text
+	.align 4
+foo:
+;;; Test if the tpoff addendum is correctly generated.
+	add r2,r25,@a@tpoff+48
+;;; Test if local TLS symbol is correctly resolved.
+	add r0,r0,@local_tls_var@dtpoff@.tbss