From 978c05401b0f0ac7a94cca7db19b1dec0c5bd698 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 9 Aug 2017 15:04:05 -0700
Subject: [PATCH] Run PR ld/17618 test only with 64-bit ELF linker

PR ld/17618 test requires 64-bit linker to run.  Set LD_CLASS to "64bit"
for 64-bit ELF linker and run PR ld/17618 test only if $LD_CLASS is
"64bit".  More checks can be added to support 64-bit linkers in non-ELF
format.

	* testsuite/config/default.exp (LD_CLASS): New.  Set to "64bit"
	for 64-bit ELF linker.
	* testsuite/ld-x86-64/pr17618.d (#notarget): Removed.
	* testsuite/ld-x86-64/x86-64.exp: Run pr17618 only for 64-bit
	linker.
---
 ld/ChangeLog                      |  8 ++++++++
 ld/testsuite/config/default.exp   | 10 ++++++++++
 ld/testsuite/ld-x86-64/pr17618.d  |  1 -
 ld/testsuite/ld-x86-64/x86-64.exp |  6 +++++-
 4 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index b6d378fed2..e4e6bfe5e3 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,11 @@
+2017-08-09  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* testsuite/config/default.exp (LD_CLASS): New.  Set to "64bit"
+	for 64-bit ELF linker.
+	* testsuite/ld-x86-64/pr17618.d (#notarget): Removed.
+	* testsuite/ld-x86-64/x86-64.exp: Run pr17618 only for 64-bit
+	linker.
+
 2017-08-08  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR ld/21924
diff --git a/ld/testsuite/config/default.exp b/ld/testsuite/config/default.exp
index f5cb188478..355d98f24a 100644
--- a/ld/testsuite/config/default.exp
+++ b/ld/testsuite/config/default.exp
@@ -251,6 +251,16 @@ if ![info exists LDFLAGS] then {
     set LDFLAGS {}
 }
 
+# Set LD_CLASS to "64bit" for 64-bit LD.
+if { ![info exists LD_CLASS] } then {
+    set readelf_output [run_host_cmd "$READELF" "-h $LD"]
+    if { [regexp {[ \t]+Class:[ \t]+ELF64} $readelf_output] } then {
+	set LD_CLASS "64bit"
+    } else {
+	set LD_CLASS "32bit"
+    }
+}
+
 # Set PLT_CFLAGS to "-fplt" if target compiler supports it.
 
 if { ![info exists PLT_CFLAGS] } then {
diff --git a/ld/testsuite/ld-x86-64/pr17618.d b/ld/testsuite/ld-x86-64/pr17618.d
index b090aa0e18..e640b4044e 100644
--- a/ld/testsuite/ld-x86-64/pr17618.d
+++ b/ld/testsuite/ld-x86-64/pr17618.d
@@ -1,5 +1,4 @@
 #name: PLT PC-relative offset overflow check
 #as: --64
 #ld: -shared -melf_x86_64
-#notarget: x86_64-*-linux*-gnux32
 #error: .*PC-relative offset overflow in PLT entry for `bar'
diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp
index ce29cc8634..0375da6aa6 100644
--- a/ld/testsuite/ld-x86-64/x86-64.exp
+++ b/ld/testsuite/ld-x86-64/x86-64.exp
@@ -1572,7 +1572,11 @@ run_ld_link_tests [list \
 ]
 
 # Linux only tests
-run_dump_test "pr17618"
+global LD_CLASS
+if { "$LD_CLASS" == "64bit" } then {
+    # This test needs 64-bit linker.
+    run_dump_test "pr17618"
+}
 run_dump_test "pltgot-1"
 run_dump_test "pltgot-2"
 run_dump_test "pr20830a"
-- 
2.34.1