Update PR ld/12365 test for GCC 6

PR ld/12365 test is to verify that linker catches the reference to
undefined symbol error caused by a GCC bug.  Since the GCC bug has
been fixed in GCC 6, update the test to verify that there is no
reference to undefined symbol in executable

Backport from master

	* testsuite/ld-plugin/lto.exp: Update PR ld/12365 test for GCC 6.

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 4f6abb91b6d5751556d61bdc09c3f7af7797be45..887f43520f285fdd976fe13c4167936279beedb7 100644 (file)
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,10 @@
+2016-03-01  H.J. Lu  <hongjiu.lu@intel.com>
+
+       Backport from master
+       2016-03-01  H.J. Lu  <hongjiu.lu@intel.com>
+
+       * testsuite/ld-plugin/lto.exp: Update PR ld/12365 test for GCC 6.
+
 2016-02-26  H.J. Lu  <hongjiu.lu@intel.com>
 
        Backport from master

diff --git a/ld/testsuite/ld-plugin/lto.exp b/ld/testsuite/ld-plugin/lto.exp
index 81e72b42c15c1f8147b9e38d2cb7acb9633783ff..982ffee431fef3136eeb68251be47befbd5b89f1 100644 (file)
--- a/ld/testsuite/ld-plugin/lto.exp
+++ b/ld/testsuite/ld-plugin/lto.exp
@@ -400,9 +400,20 @@ if { [at_least_gcc_version 4 7] } {
           || [istarget "x86_64-*-linux*"]
           || [istarget "amd64-*-linux*"]) } {
        set testname "PR ld/12365"
-       set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
+       set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
        if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
+           # Linker should catch the reference to undefined `my_bcopy'
+           # error caused by a GCC bug.
            pass $testname
+       } elseif { [ string match "" $exec_output ] } {
+           global READELF
+           set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
+           if { [ regexp "my_bcopy" $exec_output ] } {
+               # Verify that there is no `my_bcopy' symbol in executable.
+               fail $testname
+           } {
+               pass $testname
+           }
        } {
            fail $testname
        }