[patchv2] [testsuite] Fix running in-src-dir in the same directory twice

[Jan Kratochvil <jan dot kratochvil at redhat dot com>]

On Fri, 29 Aug 2014 15:13:26 +0200, Jan Kratochvil wrote:
> On Thu, 28 Aug 2014 23:53:59 +0200, Doug Evans wrote:
> > Tests can prematurely terminate for various unanticipatable reasons.
> > Can this be solved by making sure any possibly hazardous left
> > over files are cleaned up at start?
> 
> I think it would be best to modify the testcase so that the '. -> symlink'
> is made in a special subdirectory so that the *.exp files loop cannot occur
> even if the symlink is left there.

Done here.  Therefore it no longer tries to delete the symlink as it no longer
does any harm:

$ ls -l testsuite/gdb.base/argv0-symlink.*
-rw-r--r-- 1 jkratoch jkratoch  803 Aug 29 21:59 testsuite/gdb.base/argv0-symlink.c
-rw-r--r-- 1 jkratoch jkratoch 2839 Aug 29 21:59 testsuite/gdb.base/argv0-symlink.exp

testsuite/gdb.base/argv0-symlink.d:
total 16
-rwxr-xr-x 1 jkratoch jkratoch 9493 Aug 29 22:45 argv0-symlink*
lrwxrwxrwx 1 jkratoch jkratoch    1 Aug 29 22:45 argv0-symlink-dirlink -> ./
lrwxrwxrwx 1 jkratoch jkratoch   13 Aug 29 22:45 argv0-symlink-filelink -> argv0-symlink*
-rw-r--r-- 1 jkratoch jkratoch 2824 Aug 29 22:45 argv0-symlink0.o
$ _


Jan

gdb/testsuite/
2014-08-29  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Fix running in-src-dir in the same directory twice.
	* gdb.base/argv0-symlink.exp: Move everything into a subdirectory.

diff --git a/gdb/testsuite/gdb.base/argv0-symlink.exp b/gdb/testsuite/gdb.base/argv0-symlink.exp
index d849b4c..2005e7c 100644
--- a/gdb/testsuite/gdb.base/argv0-symlink.exp
+++ b/gdb/testsuite/gdb.base/argv0-symlink.exp
@@ -15,21 +15,26 @@
 
 standard_testfile
 
-if { [build_executable ${testfile}.exp ${testfile} ${srcfile}] == -1 } {
+set outputbase ${testfile}.d
+set outputdir [standard_output_file $outputbase]
+remote_exec host "rm -rf $outputdir"
+file mkdir $outputdir
+
+if { [build_executable ${testfile}.exp [file join $outputbase ${testfile}] ${srcfile}] == -1 } {
     return -1
 }
 
 set test "kept file symbolic link name"
 set filelink "${testfile}-filelink"
 
-remote_file host delete [standard_output_file $filelink]
-set status [remote_exec host "ln -sf ${testfile} [standard_output_file $filelink]"]
+remote_file host delete [file join $outputdir $filelink]
+set status [remote_exec host "ln -sf ${testfile} [file join $outputdir $filelink]"]
 if {[lindex $status 0] != 0} {
     unsupported "$test (host does not support symbolic links)"
     return 0
 }
 
-clean_restart "$filelink"
+clean_restart [file join $outputbase $filelink]
 
 if ![runto_main] {
     untested "could not run to main"
@@ -44,7 +49,7 @@ gdb_test {print argv[0]} "/$filelink\"" $test
 # 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 full_filelink [file join $outputdir $filelink]
 set lastdir [file tail [file dirname $full_filelink]]
 
 gdb_test "info inferiors" "/$lastdir/$filelink *" "$test for info inferiors"
@@ -56,14 +61,14 @@ set dirlink "${testfile}-dirlink"
 # 'ln -sf' does not overwrite symbol link to a directory.
 # 'remote_file host delete' uses stat (not lstat), therefore it refuses to
 # delete a directory.
-remote_exec host "rm -f [standard_output_file $dirlink]"
-set status [remote_exec host "ln -sf . [standard_output_file $dirlink]"]
+remote_exec host "rm -f [file join $outputdir $dirlink]"
+set status [remote_exec host "ln -sf . [file join $outputdir $dirlink]"]
 if {[lindex $status 0] != 0} {
     unsupported "$test (host does not support symbolic links)"
     return 0
 }
 
-clean_restart "$dirlink/$filelink"
+clean_restart [file join $outputbase $dirlink $filelink]
 
 if ![runto_main] {
     untested "could not run to main"