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[PATCH v3 14/17] fix argv0-symlink.exp for parallel mode


argv0-symlink.exp doesn't work properly if standard_output_file puts
files into a per-test subdirectory.  That's because it assumes that
files appear in $subdir, which is no longer true.

This patch fixes the problem by computing the correct directory at
runtime.

Tested both with and without GDB_PARALLEL on x86-64 Fedora 18.

~ChangeLog~
2013-10-24  Tom Tromey  <tromey@redhat.com>

	* gdb.base/argv0-symlink.exp: Compute executable's directory
	dynamically.
---
 gdb/testsuite/ChangeLog                  |  5 +++++
 gdb/testsuite/gdb.base/argv0-symlink.exp | 11 +++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/gdb.base/argv0-symlink.exp b/gdb/testsuite/gdb.base/argv0-symlink.exp
index cf5785c..e4efe19 100644
--- a/gdb/testsuite/gdb.base/argv0-symlink.exp
+++ b/gdb/testsuite/gdb.base/argv0-symlink.exp
@@ -37,7 +37,14 @@ if ![runto_main] {
 }
 
 gdb_test {print argv[0]} "/$filelink\"" $test
-gdb_test "info inferiors" "/$subdir/$filelink *" "$test for info inferiors"
+
+# For a link named /PATH/TO/DIR/LINK, we want to check the output
+# against "/DIR/LINK", but computed in a way that doesn't make
+# assumptions about the test directory layout.
+set full_filelink [standard_output_file $filelink]
+set lastdir [file tail [file dirname $full_filelink]]
+
+gdb_test "info inferiors" "/$lastdir/$filelink *" "$test for info inferiors"
 
 
 set test "kept directory symbolic link name"
@@ -65,4 +72,4 @@ if ![is_remote target] {
     setup_kfail "*-*-*" gdb/15934
 }
 gdb_test {print argv[0]} "/$dirlink/$filelink\"" $test
-gdb_test "info inferiors" "/$subdir/$filelink *" "$test for info inferiors"
+gdb_test "info inferiors" "/$lastdir/$filelink *" "$test for info inferiors"
-- 
1.8.1.4


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