[PATCH 1/2] gdb.threads/attach-into-signal.exp: cleanup

[Pedro Alves <palves@redhat.com>]

This patch does a bit of general cleanup to
gdb.threads/attach-into-signal.exp file.

- build different executable files for the non-threaded and threaded
  cases.  This was my motivation.  I wanted to test the non-threaded
  case manually, but the threaded variant always clobbered the
  non-threaded executable.

- unique-fy test messages (gdb.sum output)

- Use build_executable/clean_restart.

2012-02-17  Pedro Alves  <palves@redhat.com>

	General cleanup, make output test messages unique, and build
	different executable files for the non-threaded and threaded
	cases.

	* gdb.threads/attach-into-signal.exp (binfile, escapedbinfile):
	Delete.
	(executable_nothr, executable_thr): New globals.
	(top level): Adjust to delete both executables.
	(corefunc): New parameter $executable.  Set $pf_prefix instead of
	hand writing a prefix in tests.  Issue a clean_restart and enable
	lin-lwp debug output here.
	(top level): Adjust.  Use build_executable.  Don't start gdb here,
	and don't enable lin-lwp debug output here.
	* gdb.threads/Makefile.in (EXECUTABLES): Adjust.
---
 gdb/testsuite/gdb.threads/Makefile.in            |    3 +
 gdb/testsuite/gdb.threads/attach-into-signal.exp |   50 +++++++++++-----------
 2 files changed, 28 insertions(+), 25 deletions(-)

diff --git a/gdb/testsuite/gdb.threads/Makefile.in b/gdb/testsuite/gdb.threads/Makefile.in
index 954d547..79e4c4c 100644
--- a/gdb/testsuite/gdb.threads/Makefile.in
+++ b/gdb/testsuite/gdb.threads/Makefile.in
@@ -1,7 +1,8 @@
 VPATH = @srcdir@
 srcdir = @srcdir@
 
-EXECUTABLES = attach-into-signal attach-stopped attachstop-mt \
+EXECUTABLES = attach-into-signal-nothr attach-into-signal-thr \
+	attach-stopped attachstop-mt \
 	bp_in_thread current-lwp-dead execl execl1 fork-child-threads \
 	fork-thread-pending gcore-pthreads hand-call-in-threads \
 	ia64-sigill interrupted-hand-call killed linux-dp \
diff --git a/gdb/testsuite/gdb.threads/attach-into-signal.exp b/gdb/testsuite/gdb.threads/attach-into-signal.exp
index db88222..bf4b8a0 100644
--- a/gdb/testsuite/gdb.threads/attach-into-signal.exp
+++ b/gdb/testsuite/gdb.threads/attach-into-signal.exp
@@ -24,23 +24,36 @@ if { ![isnative] || [is_remote host] || [target_info exists use_gdb_stub]
 
 set testfile "attach-into-signal"
 set srcfile  ${testfile}.c
-set binfile  ${objdir}/${subdir}/${testfile}
-set escapedbinfile  [string_to_regexp ${objdir}/${subdir}/${testfile}]
+set executable_nothr ${testfile}-nothr
+set executable_thr ${testfile}-thr
 
-remote_exec build "rm -f ${binfile}"
+remote_exec build "rm -f ${objdir}/${subdir}/${executable_nothr}"
+remote_exec build "rm -f ${objdir}/${subdir}/${executable_thr}"
 # For debugging this test
 #
 #log_user 1
 
-proc corefunc { threadtype } {
+proc corefunc { threadtype executable } {
     global srcfile
     global binfile
     global escapedbinfile
     global srcdir
+    global objdir
     global subdir
     global gdb_prompt
+    global pf_prefix
+
+    set save_pf_prefix $pf_prefix
+    lappend pf_prefix "$threadtype:"
+
+    clean_restart ${executable}
+    gdb_test_no_output "set debug lin-lwp 1" ""
+
+    set binfile ${objdir}/${subdir}/${executable}
+    set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${executable}]
 
     if [get_compiler_info ${binfile}] {
+	set pf_prefix $save_pf_prefix
 	return -1
     }
 
@@ -79,12 +92,12 @@ proc corefunc { threadtype } {
 	}
 	if { $stoppedtry >= 10 } {
 	    verbose -log $line2
-	    set test "$threadtype: process is still running on the attempt # $attempt of $attempts"
+	    set test "process is still running on the attempt # $attempt of $attempts"
 	    break
 	}
 
 	# Main test:
-	set test "$threadtype: attach (pass $passes), pending signal catch"
+	set test "attach (pass $passes), pending signal catch"
 	if {[gdb_test_multiple "attach $testpid" $test {
 	    -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*Received Alarm clock.*$gdb_prompt $" {
 		# nonthreaded:
@@ -136,35 +149,24 @@ proc corefunc { threadtype } {
     remote_exec build "kill -s CONT ${testpid}"
        
     remote_exec build "kill -9 ${testpid}"
-}
 
-# Start with clean gdb
-gdb_exit
+    set pf_prefix $save_pf_prefix
+}
 
 # build the test case first without threads
 #
-if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
-    untested "attach-into-signal.exp (unthreaded)"
+if {[build_executable $testfile $executable_nothr $srcfile] == -1} {
+    untested "attach-into-signal.exp (nonthreaded)"
     return -1
 }
 
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-gdb_test_no_output "set debug lin-lwp 1" ""
-
-corefunc nonthreaded
+corefunc nonthreaded ${executable_nothr}
 
 # build the test case also with threads
 #
-if  { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DUSE_THREADS}] != "" } {
+if  { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${objdir}/${subdir}/${executable_thr}" executable {debug additional_flags=-DUSE_THREADS}] != "" } {
     untested "attach-into-signal.exp (threaded)"
     return -1
 }
 
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
-gdb_test_no_output "set debug lin-lwp 1" ""
-
-corefunc threaded
+corefunc threaded ${executable_thr}