Initial creation of sourceware repository

gdb/testsuite/gdb.threads/Makefile.in

@@ -0,0 +1,31 @@
+VPATH = @srcdir@
+srcdir = @srcdir@
+
+EXECUTABLES = pthreads
+
+all:
+	@echo "Nothing to be done for all..."
+
+info:
+install-info:
+dvi:
+install:
+uninstall: force
+installcheck:
+check:
+
+clean mostlyclean:
+	-rm -f *~ *.o a.out xgdb *.x *.ci *.tmp core* $(EXECUTABLES)
+
+distclean maintainer-clean realclean: clean
+	-rm -f Makefile config.status config.log config.h
+
+Makefile : $(srcdir)/Makefile.in $(srcdir)/configure.in
+	$(SHELL) ./config.status --recheck
+
+config.h: stamp-h ; @true
+stamp-h: config.in config.status
+	CONFIG_HEADERS=config.h:config.in $(SHELL) config.status
+
+config.status: configure
+	$(SHELL) config.status --recheck

gdb/testsuite/gdb.threads/config.in

@@ -0,0 +1,4 @@
+/* config.in.  Generated automatically from configure.in by autoheader.  */
+
+/* Define if you have the <pthread.h> header file.  */
+#undef HAVE_PTHREAD_H

gdb/testsuite/gdb.threads/configure.in

@@ -0,0 +1,18 @@
+dnl Process this file file with autoconf to produce a configure script.
+dnl This file is a shell script fragment that supplies the information
+dnl necessary to tailor a template configure script into the configure
+dnl script appropriate for this directory.  For more information, check
+dnl any existing configure script.
+
+AC_PREREQ(2.5)
+AC_INIT(pthreads.exp)
+AC_CONFIG_HEADER(config.h:config.in)
+
+CC=${CC-cc}
+AC_SUBST(CC)
+AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/../../..)
+AC_CANONICAL_SYSTEM
+
+AC_CHECK_HEADERS(pthread.h)
+
+AC_OUTPUT(Makefile)

gdb/testsuite/gdb.threads/pthreads.c

@@ -0,0 +1,168 @@
+#include <stdio.h>
+
+#include "config.h"
+
+#ifndef HAVE_PTHREAD_H
+
+/* Don't even try to compile.  In fact, cause a syntax error that we can
+   look for as a compiler error message and know that we have no pthread
+   support.  In that case we can just suppress the test completely. */
+
+#error "no posix threads support"
+
+#else
+
+/* OK.  We have the right header.  If we try to compile this and fail, then
+   there is something wrong and the user should know about it so the testsuite
+   should issue an ERROR result.. */
+
+#ifdef __linux__
+#define  _MIT_POSIX_THREADS 1	/* Linux (or at least RedHat 4.0) needs this */
+#endif
+
+#include <pthread.h>
+
+/* Under OSF 2.0 & 3.0 and HPUX 10, the second arg of pthread_create
+   is prototyped to be just a "pthread_attr_t", while under Solaris it
+   is a "pthread_attr_t *".  Arg! */
+
+#if defined (__osf__) || defined (__hpux__)
+#define PTHREAD_CREATE_ARG2(arg) arg
+#define PTHREAD_CREATE_NULL_ARG2 null_attr
+static pthread_attr_t null_attr;
+#else
+#define PTHREAD_CREATE_ARG2(arg) &arg
+#define PTHREAD_CREATE_NULL_ARG2 NULL
+#endif
+
+static int verbose = 0;
+
+static void
+common_routine (arg)
+     int arg;
+{
+  static int from_thread1;
+  static int from_thread2;
+  static int from_main;
+  static int hits;
+  static int full_coverage;
+
+  if (verbose) printf("common_routine (%d)\n", arg);
+  hits++;
+  switch (arg)
+    {
+    case 0:
+      from_main++;
+      break;
+    case 1:
+      from_thread1++;
+      break;
+    case 2:
+      from_thread2++;
+      break;
+    }
+  if (from_main && from_thread1 && from_thread2)
+    full_coverage = 1;
+}
+
+static void *
+thread1 (void *arg)
+{
+  int i;
+  int z = 0;
+
+  if (verbose) printf ("thread1 (%0x) ; pid = %d\n", arg, getpid ());
+  for (i=1; i <= 10000000; i++)
+    {
+      if (verbose) printf("thread1 %d\n", pthread_self ());
+      z += i;
+      common_routine (1);
+      sleep(1);
+    }
+}
+
+static void *
+thread2 (void * arg)
+{
+  int i;
+  int k = 0;
+
+  if (verbose) printf ("thread2 (%0x) ; pid = %d\n", arg, getpid ());
+  for (i=1; i <= 10000000; i++)
+    {
+      if (verbose) printf("thread2 %d\n", pthread_self ());
+      k += i;
+      common_routine (2);
+      sleep(1);
+    }
+  sleep(100);
+}
+
+int
+foo (a, b, c)
+     int a, b, c;
+{
+  int d, e, f;
+
+  if (verbose) printf("a=%d\n", a);
+}
+
+main(argc, argv)
+     int argc;
+     char **argv;
+{
+  pthread_t tid1, tid2;
+  int j;
+  int t = 0;
+  void (*xxx) ();
+  pthread_attr_t attr;
+
+  if (verbose) printf ("pid = %d\n", getpid());
+
+  foo (1, 2, 3);
+
+#ifndef __osf__
+  if (pthread_attr_init (&attr))
+    {
+      perror ("pthread_attr_init 1");
+      exit (1);
+    }
+#endif
+
+#ifdef PTHREAD_SCOPE_SYSTEM
+  if (pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM))
+    {
+      perror ("pthread_attr_setscope 1");
+      exit (1);
+    }
+#endif
+
+  if (pthread_create (&tid1, PTHREAD_CREATE_ARG2(attr), thread1, (void *) 0xfeedface))
+    {
+      perror ("pthread_create 1");
+      exit (1);
+    }
+  if (verbose) printf ("Made thread %d\n", tid1);
+  sleep (1);
+
+  if (pthread_create (&tid2, PTHREAD_CREATE_NULL_ARG2, thread2, (void *) 0xdeadbeef))
+    {
+      perror ("pthread_create 2");
+      exit (1);
+    }
+  if (verbose) printf("Made thread %d\n", tid2);
+
+  sleep (1);
+
+  for (j = 1; j <= 10000000; j++)
+    {
+      if (verbose) printf("top %d\n", pthread_self ());
+      common_routine (0);
+      sleep(1);
+      t += j;
+    }
+  
+  exit(0);
+}
+
+#endif	/* ifndef HAVE_PTHREAD_H */

gdb/testsuite/gdb.threads/pthreads.exp

@@ -0,0 +1,328 @@
+# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@prep.ai.mit.edu
+
+# This file was written by Fred Fish. (fnf@cygnus.com)
+
+if $tracelevel then {
+	strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+# This only works with native configurations
+if ![isnative] then {
+    return
+}
+
+set testfile "pthreads"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+# regexp for "horizontal" text (i.e. doesn't include newline or
+# carriage return)
+set horiz "\[^\n\r\]*"
+
+set built_binfile 0
+if [istarget "*-*-linux"] then {
+    set target_cflags "-D_MIT_POSIX_THREADS"
+} else {
+    set target_cflags ""
+}
+set why_msg "unrecognized error"
+foreach lib {-lpthreads -lpthread} {
+    set options "debug"
+    lappend options "incdir=${objdir}/${subdir}"
+    lappend options "libs=$lib"
+    set ccout [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $options]
+    switch -regexp -- $ccout {
+	".*no posix threads support.*" {
+	    set why_msg "missing threads include file"
+	    break
+	}
+	".*cannot open -lpthread.*" {
+	    set why_msg "missing runtime threads library"
+	}
+	".*Can't find library for -lpthread.*" {
+	    set why_msg "missing runtime threads library"
+	}
+	{^$} {
+	    pass "successfully compiled posix threads test case"
+	    set built_binfile 1
+	    break
+	}
+    }
+}
+if {$built_binfile == "0"} {
+    unsupported "Couldn't compile ${srcfile}, ${why_msg}"
+    return -1
+}
+
+# Now we can proceed with the real testing.
+
+# Start with a fresh gdb.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+gdb_test "set print sevenbit-strings" ""
+#gdb_test "set print address off" ""
+gdb_test "set width 0" ""
+
+# We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
+# run the program and gdb starts saving and restoring tty states.
+# On Ultrix, we don't need it and it is really slow (because shell_escape
+# doesn't use vfork).
+if ![istarget "*-*-ultrix*"] then {
+    gdb_test "shell stty intr '^C'" ""
+}
+
+proc all_threads_running {} {
+    global gdb_prompt
+    global srcfile
+
+    # Reset all the counters to zero.
+    gdb_test "set var common_routine::hits=0" ""
+    gdb_test "set var common_routine::from_thread1=0" ""
+    gdb_test "set var common_routine::from_thread2=0" ""
+    gdb_test "set var common_routine::from_main=0" ""
+    gdb_test "set var common_routine::full_coverage=0" ""
+
+    # Disable all breakpoints.
+    gdb_test "disable" ""
+
+    # Set up a breakpoint that will cause us to stop when we have
+    # been called 15 times.  This should be plenty of time to allow
+    # every thread to run at least once, since each thread sleeps for
+    # one second between calls to common_routine.
+    gdb_test "tbreak common_routine if hits == 15" ""
+
+    # Start all the threads running again and wait for the inferior
+    # to stop.  Since no other breakpoints are set at this time
+    # we should stop only when we have been previously called 15 times.
+
+    send_gdb "continue\n"
+    gdb_expect {
+	-re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {}
+	default {
+	    fail "continue until common routine run 15 times"
+	    return 0
+	}
+	timeout {
+	    fail "continue until common routine run 15 times (timeout)"
+	    return 0
+	}
+    }
+
+    # Check that we stopped when we actually expected to stop, by
+    # verifying that there have been 15 previous hits.
+
+    send_gdb "p common_routine::hits\n"
+    gdb_expect {
+	-re ".*= 15\r\n$gdb_prompt $" {}
+	default {
+	    fail "stopped before calling common_routine 15 times"
+	    return 0
+	}
+	-re ".*$gdb_prompt $" {
+	    fail "stopped before calling common_routine 15 times"
+	    return 0
+	}
+	timeout {
+	    fail "stopped before calling common_routine 15 times (timeout)"
+	    return 0
+	}
+    }
+
+    # Also check that all of the threads have run, which will only be true
+    # if the full_coverage variable is set.
+
+    send_gdb "p common_routine::full_coverage\n"
+    gdb_expect {
+	-re ".*= 1\r\n$gdb_prompt $" {}
+	default {
+	    fail "some threads didn't run"
+	    return 0
+	}
+	timeout {
+	    fail "some threads didn't run (timeout)"
+	    return 0
+	}
+    }
+
+    # Looks fine, return success.
+    return 1
+}
+
+proc test_startup {} {
+    global srcdir srcfile gdb_prompt expect_out
+    global horiz
+    global main_id thread1_id thread2_id
+
+    # We should be able to do an info threads before starting any others.
+    send_gdb "info threads\n"
+    gdb_expect {
+	-re ".*Thread.*LWP.*main.*$gdb_prompt $" {
+	    pass "info threads"
+	}
+	-re "\r\n$gdb_prompt $" {
+	    pass "info threads"
+	    setup_xfail "*-*-*"
+	    fail "gdb does not support pthreads for this machine"
+	    return 0
+	}
+    }
+
+    # Extract the thread id number of main thread from "info threads" output.
+    send_gdb "info threads\n"
+    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)"
+    set main_id $expect_out(1,string)
+
+    # Check that we can continue and create the first thread.
+    gdb_test "break thread1" "Breakpoint .* file .*$srcdir.*"
+    gdb_test "continue" \
+	    "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
+	    "Continue to creation of first thread"
+    gdb_test "disable" ""
+
+    # Extract the thread id number of thread 1 from "info threads" output.
+    send_gdb "info threads\n"
+    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)"
+    set thread1_id $expect_out(1,string)
+
+    # Check that we can continue and create the second thread,
+    # ignoring the first thread for the moment.
+    gdb_test "break thread2" "Breakpoint .* file .*$srcdir.*"
+    gdb_test "continue" \
+	    "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
+	    "Continue to creation of second thread"
+
+    # Extract the thread id number of thread 2 from "info threads" output.
+    send_gdb "info threads\n"
+    gdb_expect -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)"
+    set thread2_id $expect_out(1,string)
+
+    return 1
+}
+
+proc check_control_c {} {
+    global gdb_prompt
+
+    # Verify that all threads are running.
+    if [all_threads_running] then {
+	pass "All threads running after startup"
+    }
+
+    # Send a continue followed by ^C to the process to stop it.
+    send_gdb "continue\n"
+    set description "Stopped with a ^C"
+    after 1000 [send_gdb "\003"]
+    gdb_expect {
+	-re "Program received signal SIGINT.*$gdb_prompt $" {
+	    pass $description
+	}
+	-re "Quit.*$gdb_prompt $" {
+	    pass $description
+	}
+	timeout {
+	    fail "$description (timeout)"
+	}
+    }
+    gdb_test "bt" ""
+
+    # Verify that all threads can be run again after a ^C stop.
+    if [all_threads_running] then {
+	pass "All threads running after continuing from ^C stop"
+    }
+}
+
+proc check_backtraces {} {
+    global gdb_prompt main_id thread1_id thread2_id
+
+    # Check that the "thread apply N backtrace" command works
+
+    gdb_test "thread apply $main_id backtrace" \
+	    ".* in main \\(argc=.*, argv=.*\\).*" \
+	    "check backtrace from main thread"
+    gdb_test "thread apply $thread1_id backtrace" \
+	    ".* in thread1 \\(arg=0xfeedface\\).*" \
+	    "check backtrace from thread 1"
+    gdb_test "thread apply $thread2_id backtrace" \
+	    ".* in thread2 \\(arg=0xdeadbeef\\).*" \
+	    "check backtrace from thread 2"
+
+    # Check that we can apply the backtrace command to all
+    # three threads with a single gdb command
+
+    gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
+	    ".* in main .* in thread1 .* in thread2.*" \
+	    "apply backtrace command to all three threads"
+
+    # Check that we can do thread specific backtraces
+    # This also tests that we can do thread specific breakpoints.
+
+    gdb_test "break common_routine thread $thread2_id" \
+	    "Breakpoint .* at 0x.* file .* line .*" \
+	    "set break at common_routine in thread 2"
+
+    send_gdb "continue\n"
+    gdb_expect {
+	-re "Breakpoint .* common_routine \\(arg=2\\).*" {
+	    send_gdb "backtrace\n"
+	    gdb_expect {
+		-re "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" {
+		    pass "backtrace from thread 2 bkpt in common_routine"
+		}
+		default {
+		    fail "backtrace from thread 2 bkpt in common_routine"
+		}
+		timeout {
+		    fail "backtrace from thread 2 bkpt in common_routine (timeout)"
+		}
+	    }
+	}
+	-re "Breakpoint .* common_routine \\(arg=0\\).*" {
+	    fail "stopped in main thread at breakpoint for thread 2"
+	}
+	-re "Breakpoint .* common_routine \\(arg=1\\).*" {
+	    fail "stopped in main thread at breakpoint for thread 1"
+	}
+	-re ".*$gdb_prompt" {
+	    fail "continue to bkpt at common_routine in thread 2"
+	}
+	default {
+	    fail "continue to bkpt at common_routine in thread 2"
+	}
+	timeout {
+	    fail "continue to bkpt at common_routine in thread 2 (timeout)"
+	}
+    }
+}
+
+setup_xfail "alpha-*-osf*"
+if [runto_main] then {
+    clear_xfail "alpha-*-osf*"
+    if [test_startup] then {
+	check_control_c
+	check_backtraces
+    }
+}
+clear_xfail "alpha-*-osf*"

gdb/testsuite/gdb.threads/step.c

@@ -0,0 +1,221 @@
+/*    step.c for step.exp    */
+#include <ipc.h>
+#include <pthread.h>
+#include <st.h>
+#include <signal.h>
+#include <stdio.h>
+
+void alarm_handler ();
+void alarm_handler1 ();
+void alarm_handler2 ();
+void thread1 ();
+void thread2 ();
+
+#define TIME_LIMIT 30
+
+
+int count1 = 0;
+int count2 = 0;
+
+pthread_t tid1, tid2;
+pthread_attr_t attr1, attr2;
+
+pthread_mutex_t mut;
+pthread_mutexattr_t mut_attr;
+
+pthread_condattr_t cv_attr_a, cv_attr_b;
+pthread_cond_t cv_a, cv_b;
+
+struct cv_struct
+  {
+    char a;
+    char b;
+  }
+test_struct;
+
+main ()
+{
+  /*init la struct */
+  test_struct.a = 0;
+  test_struct.b = 1;
+
+  /* create le mutex */
+  if (pthread_mutexattr_create (&mut_attr) == -1)
+    {
+      perror ("mutexattr_create");
+      exit (1);
+    }
+
+
+  if (pthread_mutex_init (&mut, mut_attr) == -1)
+    {
+      perror ("mutex_init");
+      exit (1);
+    }
+
+  /* create 2 cv */
+  if (pthread_condattr_create (&cv_attr_a) == -1)
+    {
+      perror ("condattr_create(1)");
+      exit (1);
+    }
+
+  if (pthread_cond_init (&cv_a, cv_attr_a) == -1)
+    {
+      perror ("cond_init(1)");
+      exit (1);
+    }
+
+  if (pthread_condattr_create (&cv_attr_b) == -1)
+    {
+      perror ("condattr_create(2)");
+      exit (1);
+    }
+
+  if (pthread_cond_init (&cv_b, cv_attr_b) == -1)
+    {
+      perror ("cond_init(2)");
+      exit (1);
+    }
+
+  /* create 2 threads of execution */
+  if (pthread_attr_create (&attr1) == -1)
+    {
+      perror ("attr_create(1)");
+      exit (1);
+    }
+
+  if (pthread_create (&tid1, attr1, thread1, &count1) == -1)
+    {
+      perror ("pthread_create(1)");
+      exit (1);
+    }
+
+  if (pthread_attr_create (&attr2) == -1)
+    {
+      perror ("attr_create(2)");
+      exit (1);
+    }
+
+  if (pthread_create (&tid2, attr2, thread2, &count2) == -1)
+    {
+      perror ("pthread_create(2)");
+      exit (1);
+    }
+
+  /* set alarm to print out data and exit */
+  signal (SIGALRM, alarm_handler);
+  alarm (TIME_LIMIT);
+
+  for (;;)
+    pause ();
+}
+
+void 
+thread1 (count)
+     int *count;
+{
+  tid_t tid;
+
+  tid = getstid ();
+  printf ("Thread1 tid 0x%x  (%d) \n", tid, tid);
+  printf ("Thread1 @tid=0x%x \n", &tid);
+  signal (SIGALRM, alarm_handler1);
+
+  for (;;)
+    {
+      if (pthread_mutex_lock (&mut) == -1)
+	{
+	  perror ("pthread_mutex_lock(1)");
+	  pthread_exit ((void *) 0);
+	}
+
+      while (test_struct.a == 0)
+	{
+	  if (pthread_cond_wait (&cv_a, &mut) == -1)
+	    {
+	      perror ("pthread_cond_wait(1)");
+	      pthread_exit ((void *) -1);
+	    }
+	}
+
+      (*count)++;
+      printf ("*******thread1 count %d\n", *count);
+
+      test_struct.a = 0;
+
+      test_struct.b = 1;
+      pthread_cond_signal (&cv_b);
+
+      if (pthread_mutex_unlock (&mut) == -1)
+	{
+	  perror ("pthread_mutex_unlock(1)");
+	  pthread_exit ((void *) -1);
+	}
+    }
+}
+
+void 
+thread2 (count)
+     int *count;
+{
+  tid_t tid;
+
+  tid = getstid ();
+  printf ("Thread2 tid 0x%x  (%d) \n", tid, tid);
+  printf ("Thread1 @tid=0x%x \n", &tid);
+  signal (SIGALRM, alarm_handler2);
+
+  for (;;)
+    {
+      if (pthread_mutex_lock (&mut) == -1)
+	{
+	  perror ("pthread_mutex_lock(2)");
+	  pthread_exit ((void *) 0);
+	}
+
+      while (test_struct.b == 0)
+	{
+	  if (pthread_cond_wait (&cv_b, &mut) == -1)
+	    {
+	      perror ("pthread_cond_wait(2)");
+	      pthread_exit ((void *) -1);
+	    }
+	}
+
+      (*count)++;
+      printf ("*******thread2 count %d\n", *count);
+
+      test_struct.b = 0;
+
+      test_struct.a = 1;
+      pthread_cond_signal (&cv_a);
+
+      if (pthread_mutex_unlock (&mut) == -1)
+	{
+	  perror ("pthread_mutex_unlock(2)");
+	  pthread_exit ((void *) -1);
+	}
+    }
+}
+
+
+void 
+alarm_handler ()
+{
+  printf ("\tcount1 (%d) \n\tcount2 (%d)\n", count1, count2);
+  exit (0);
+}
+
+void 
+alarm_handler1 ()
+{
+  printf ("ALARM thread 1\n");
+}
+
+void 
+alarm_handler2 ()
+{
+  printf ("ALARM thread 2\n");
+  pthread_exit ((void *) 0);
+}

gdb/testsuite/gdb.threads/step.exp

@@ -0,0 +1,200 @@
+# step.exp -- Expect script to test gdb with step.c
+# Copyright (C) 1992, 1997 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@prep.ai.mit.edu
+
+# This file was written by Hiro Sugawara. (hiro@lynx.com)
+#
+# This test really needs some major surgery to be acceptable, but
+# I'm just about burnt out on lynx work, so I'm not doing it now.
+#
+#	* The test has an indeterminate number of pass/fails
+#	for each run (it runs a small group of tests until
+#	it's timer kicks off).  This is very bad for nightly
+#	automated regression testing.
+#
+#	* It tries to "step" from withint he prologue of a
+# 	function.  This isn't support in gdb (it's going
+#	to act like a continue).
+#
+#	* This test rarely check that it stopped in sensible
+#	places.  (see previous bullet -- this test doesn't
+#	catch the fact it continued rather than stepped)
+
+
+if $tracelevel then {
+	strace $tracelevel
+}
+
+set program_exited 0
+
+proc set_bp { where } {
+    global gdb_prompt
+
+    send_gdb "break $where\n"
+    # The first regexp is what we get with -g, the second without -g.
+    gdb_expect {
+	-re "Break.* at .*: file .*, line \[0-9\]*.*$gdb_prompt $" {}
+	-re "Breakpoint \[0-9\]* at 0x\[0-9a-f\]*.*$gdb_prompt $" {}
+	-re "$gdb_prompt $" { fail "setting breakpoint at $where" ; return 0 }
+	timeout { fail "setting breakpoint at $where (timeout)" ; return 0 }
+    }
+    pass "set_bp"
+}
+
+proc step_it { cmd } {
+    global gdb_prompt
+    global program_exited
+
+    send_gdb "$cmd\n"
+    gdb_expect {
+	-re "0x\[0-9A-Fa-f\]* *in.*\r\n$gdb_prompt $" { pass "step_it"; return 0 }
+	-re "0x\[0-9A-Fa-f\]* *\[0-9\]*.*\r\n$gdb_prompt $" { pass "step_it"; return 1 }
+	-re "Program exited .*\n$gdb_prompt $" {
+		set program_exited 1
+		return -1
+	    }
+	-re "$gdb_prompt $"	{ fail "single-stepping ($cmd).\n" ; return -1 }
+	timeout	{ fail "single-stepping ($cmd) timout.\n" ; return -1 }
+    }
+}
+
+proc step_inst {} {
+    step_it "stepi"
+}
+
+proc step_source {} {
+    step_it "step"
+}
+
+proc continue_all {} {
+    global gdb_prompt
+
+    send_gdb "continue\n"
+    gdb_expect {
+	-re "Breakpoint \[0-9\]*, thread\[0-9\]* .*$gdb_prompt $" { 
+	    pass "continue_all"
+	    return 0
+	}
+	-re "Program exited .*\n$gdb_prompt $" {
+	    set program_exited 1
+	    return 1;
+	}
+	-re "$gdb_prompt $" { fail "continue" ; return -1 }
+	timeout { fail "continue (timeout)" ; return -1 }
+    }
+}
+
+proc check_threads { num_threads } {
+    global gdb_prompt
+
+    set curr_thread 0
+    send_gdb "info threads\n"
+    while { $num_threads > 0 } {
+	gdb_expect {
+	    -re "\\* *\[0-9\]* process \[0-9\]* thread \[0-9\]* .*\n" {
+		incr curr_thread
+		set num_threads [expr $num_threads - 1]
+	    }
+	    -re " *\[0-9\]* process \[0-9\]* thread \[0-9\]* .*\n" {
+		set num_threads [expr $num_threads - 1]
+	    }
+	    -re "$gdb_prompt $" {
+		if { $num_threads < 0 } {
+		    fail "check_threads (too many)" ; return -1
+		}
+		break
+	    }
+	    timeout { fail "check_threads (timeout)" ; return -1 }
+	}
+    }
+
+    if { $curr_thread == 0 } {
+	fail "check_threads (no current thread)\n"
+	return -1
+    }
+    if { $curr_thread > 1 } {
+	fail "check_threads (more than one current thread)\n"
+	return -1
+    }
+    return 0
+}
+
+proc test_cond_wait {} {
+    global program_exited
+
+    set_bp	135
+    runto	179
+    while { 1 } {
+	set stepi_counter 0
+	while { [step_inst] } {
+		if { $program_exited } { break }
+		incr stepi_counter
+		if { $stepi_counter > 30 } {
+			fail "too many stepi's per line\n"
+			return -1
+		}
+	}
+	if { $program_exited } { break }
+	step_source
+	if { $program_exited } { break }
+	continue_all
+	if { $program_exited } { break }
+	check_threads 3
+    }
+}
+
+proc do_tests {} {
+    global prms_id
+    global bug_id
+    global subdir
+    global objdir
+    global srcdir
+    global binfile
+    global gdb_prompt
+
+    set prms_id 0
+    set bug_id 0
+
+    # Start with a fresh gdb.
+
+    gdb_exit
+    gdb_start
+    gdb_reinitialize_dir $srcdir/$subdir
+    gdb_load $objdir/$subdir/$binfile
+
+    send_gdb "set width 0\n"
+    gdb_expect -re "$gdb_prompt $"
+
+    test_cond_wait
+}
+
+# Check to see if we have an executable to test.  If not, then either we
+# haven't tried to compile one, or the compilation failed for some reason.
+# In either case, just notify the user and skip the tests in this file.
+
+set binfile "step"
+set srcfile "step.c"
+
+if ![file exists $objdir/$subdir/$binfile] then {
+    if $all_flag then {
+	warning "$binfile does not exist; tests suppressed."
+    }
+} else {
+    do_tests
+}

gdb/testsuite/gdb.threads/step2.exp

@@ -0,0 +1,150 @@
+# step2.exp -- Expect script to test gdb step.c
+# Copyright (C) 1992, 1997 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@prep.ai.mit.edu
+
+# This file was written by Jeff Law. (law@cygnus.com)
+#
+
+
+if $tracelevel then {
+	strace $tracelevel
+}
+
+set program_exited 0
+
+# A simple and crude test to see that we can step two threads independently
+proc test_multi_threaded_stepping {} {
+    global gdb_prompt
+    global hex
+    global srcfile
+    global decimal
+
+    # Set breakpoints in code that we know is executed in only
+    # thread of control.
+    gdb_test "break thread1" \
+	     "Break.* at $hex: file .*$srcfile, line $decimal\\."
+    gdb_test "break thread2" \
+	     "Break.* at $hex: file .*$srcfile, line $decimal\\."
+
+    # the order in which things happen is indeterminate.  So we basically
+    # look for a set of events and note that each one happens and that
+    # all of the required events have happened when we're done.
+    #
+    # Right now we only verify that both threads start and that they
+    # both call pthread_cond_wait twice.
+    set thread1started 0
+    set thread1condwait 0
+    set thread2started 0
+    set thread2condwait 0
+    
+    send_gdb "run\n"
+    gdb_expect {
+	-re "The program .* has been started already.*y or n. $" {
+	    send_gdb "y\n"
+	    exp_continue
+	}
+	-re ".*Breakpoint \[0-9\]+,.*thread1.* at .*$srcfile:.*\[\t \].*$gdb_prompt $" {
+	    if { $thread1started != 0 } then {
+		fail "thread1 started"
+		return
+	    } else {
+		set thread1started 1
+		pass "thread1 started"
+	    }
+	    send_gdb "step\n"
+	    exp_continue
+	}
+	-re ".*Breakpoint \[0-9\]+,.*thread2.* at .*$srcfile:.*\[\t \].*$gdb_prompt $" {
+	    if { $thread2started != 0 } then {
+		fail "thread2 started"
+		return
+	    } else {
+		set thread2started 1
+		pass "thread2 started"
+	    }
+	    send_gdb "step\n"
+	    exp_continue
+	}
+	-re ".*pthread_cond_wait.*cv_a.*$gdb_prompt" {
+	    if { $thread1started == 0 } then {
+		fail "thread1 condwait"
+		return
+	    }
+	    if { $thread1condwait < 2 } then {
+		pass "thread1 condwait"
+		incr thread1condwait
+	    }
+	    if { $thread2condwait == 2 } then {
+		pass "multi threaded stepping"
+		return
+	    }
+	    send_gdb "step\n"
+	    exp_continue
+	}
+		    
+	-re ".*pthread_cond_wait.*cv_b.*$gdb_prompt" {
+	    if { $thread2started == 0 } then {
+		fail "thread2 condwait"
+		return
+	    }
+	    if { $thread2condwait < 2 } then {
+		pass "thread2 condwait"
+		incr thread2condwait
+	    }
+	    if { $thread1condwait == 2 } then {
+		pass "multi threaded stepping"
+		return
+	    }
+	    send_gdb "step\n"
+	    exp_continue
+	}
+		    
+	-re "$gdb_prompt" {
+	    send_gdb "step\n"
+	    exp_continue
+	}
+	default { fail "multi threaded stepping" }
+    }
+}
+
+# Check to see if we have an executable to test.  If not, then either we
+# haven't tried to compile one, or the compilation failed for some reason.
+# In either case, just notify the user and skip the tests in this file.
+
+set binfile "step"
+set srcfile "step.c"
+
+if ![file exists $objdir/$subdir/$binfile] then {
+    if $all_flag then {
+	warning "$binfile does not exist; tests suppressed."
+    }
+    return
+}
+
+set prms_id 0
+set bug_id 0
+
+# Start with a fresh gdb.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load $objdir/$subdir/$binfile
+
+test_multi_threaded_stepping