Initial creation of sourceware repositorygdb-4_18-branchpoint

3 files changed, 1864 insertions, 0 deletions

diff --git a/gdb/testsuite/lib/emc-support.exp b/gdb/testsuite/lib/emc-support.exp
new file mode 100644
index 0000000..70bf2df
--- /dev/null
+++ b/gdb/testsuite/lib/emc-support.exp
@@ -0,0 +1,223 @@
+proc gdb_emc_readvar { varname } {
+    global gdb_prompt;
+
+    set result -1;
+    send_gdb "print $varname\n"
+    gdb_expect 5 {
+	-re "\[$\].*= (\[0-9\]+).*$gdb_prompt $" {
+	    set result $expect_out(1,string);
+	}
+	-re "$gdb_prompt $" { }
+	default { }
+    }
+    return $result;
+}
+    
+proc gdb_emc_gettpnum { testname } {
+    global gdb_prompt;
+
+    if { $testname != "" } {
+	gdb_test "trace $testname" "" ""
+    }
+    return [gdb_emc_readvar "\$tpnum"];
+}
+
+proc gdb_emc_setactions { testname actionname args } {
+    global gdb_prompt;
+
+    set state 0;
+    set status "pass";
+    send_gdb "actions $actionname\n";
+    set expected_result "";
+    gdb_expect 5 {
+	-re "No tracepoint number .*$gdb_prompt $" {
+	    fail $testname
+	    return 1;
+	}
+	-re "Enter actions for tracepoint $actionname.*>" {
+	    if { [llength $args] > 0 } {
+		set lastcommand "[lindex $args $state]";
+		send_gdb "[lindex $args $state]\n";
+		incr state;
+		set expected_result [lindex $args $state];
+		incr state;
+	    } else {
+		send_gdb "end\n";
+	    }
+	    exp_continue;
+	}
+	-re "\(.*\[\r\n\]+)\[ \t]*> $" {
+	    if { $expected_result != "" } {
+		# Remove echoed command and its associated newline.
+		regsub "^\[^\r\n\]+\[\r\n\]+" "$expect_out(1,string)" "" out;
+		# Strip off any newlines at the end of the string.
+		regsub "\[\r\n\]+$" "$out" "" out;
+		verbose "expected '$expected_result', got '$out', expect_out is '$expect_out(1,string)'";
+		if ![regexp $expected_result $out] {
+		    set status "fail";
+		}
+		set expected_result "";
+	    }
+	    if { $state < [llength $args] } {
+		send_gdb "[lindex $args $state]\n";
+		incr state;
+		set expected_result [lindex $args $state];
+		incr state;
+	    } else {
+		send_gdb "end\n";
+		set expected_result "";
+	    }
+	    exp_continue;
+	}
+	-re "\(.*\)$gdb_prompt $" {
+	    if { $expected_result != "" } {
+		if ![regexp $expected_result $expect_out(1,string)] {
+		    set status "fail";
+		}
+		set expected_result "";
+	    }
+	    if { [llength $args] < $state } {
+		set status "fail";
+	    }
+	}
+	default {
+	    set status "fail";
+	}
+    }
+    if { $testname != "" } {
+	$status $testname;
+    }
+    if { $status == "pass" } then { 
+	return 0;
+    } else {
+	return 1;
+    }
+}
+
+#
+# test collect command
+#
+
+proc gdb_emc_tracetest_collect { arg1 msgstring } {
+    global decimal
+    global gdb_prompt;
+
+    set teststate 0
+    gdb_expect 30 {
+        -re "Enter actions for tracepoint $decimal.*> $" {
+            send_gdb "collect $arg1\n"
+            incr teststate;
+            exp_continue
+        }
+        -re "> $" {
+            if { $teststate == 1 } {
+                send_gdb "end\n"
+		incr teststate;
+                exp_continue
+            } else { 
+                fail "$msgstring"
+            }
+        }
+        -re ".*$gdb_prompt $" {
+            if { $teststate == 2 } {
+                pass "$msgstring";
+            } else { 
+                fail "$msgstring";
+            }
+        }
+        default { 
+            fail "$msgstring (default)";
+        }
+    }
+    regsub -all "(\[($@*+)\])" "collect $arg1" "\[\\1\]" arg1_regexp;
+    gdb_test "info tracepoints" ".*$arg1_regexp.*" "$msgstring info tracepoint"
+}
+
+proc gdb_delete_tracepoints { } {
+    global gdb_prompt;
+
+    send_gdb "delete tracepoints\n"
+    gdb_expect 30 {
+	-re "Delete all tracepoints.*y or n.*$" {
+	    send_gdb "y\n"
+	    exp_continue;
+	}
+	-re "$gdb_prompt $" { }
+	timeout { fail "delete all tracepoints (timeout)" }
+    }
+}
+
+
+# Send each command in the list CMDLIST to gdb. If we see the string
+# "error" or "warning" from gdb, we assume an error has occured and
+# return a non-zero result. All of the commands in CMDLIST are always
+# sent, even if an error occurs.
+# If TESTNAME is non-null, we call pass or fail with the string in TESTNAME
+# depending on whether or not an error/warning has occurred.
+#
+proc gdb_do_cmdlist { cmdlist testname } {
+    global gdb_prompt;
+
+    set status 0;
+
+    foreach x $cmdlist {
+	send_gdb "$x\n";
+	gdb_expect 60 {
+	    -re "\[Ee\]rror|\[Ww\]arning" {
+		set status 1;
+		exp_continue;
+	    }
+	    -re "$gdb_prompt $" { }
+	    -re "\[\r\n\]\[ \t\]*> *$" { }
+	}
+    }
+    if { $testname != "" } {
+	if { $status == 0 } {
+	    pass "$testname";
+	} else {
+	    fail "$testname";
+	}
+    }
+    return $status;
+}
+
+#
+# Given the file FILENAME, we read it as a list of commands and generate
+# a list suitable for use by gdb_do_cmdlist. Lines beginning with # are
+# ignored; blank lines are interpreted as empty lines to be sent to gdb.
+#
+proc gdb_process_cmdfile { filename } {
+    set id [open $filename "r"];
+    if { $id < 0 } {
+	return "";
+    }
+    set result {};
+    while { [gets $id line] >= 0 } {
+	if [regexp "^#" $line] {
+	    continue;
+	}
+	set result [concat $result [list "$line"]];
+    }
+    close $id;
+    return $result;
+}
+
+# gdb_find_c_test_baseline
+# returns -1 on failure (CALLER MUST CHECK RETURN!)
+proc gdb_find_c_test_baseline { } {
+    global gdb_prompt;
+
+    set gdb_c_test_baseline -1;
+
+    send_gdb "list gdb_c_test\n"
+    gdb_expect {
+	-re "void.*p5,.*void.*p6.*\[\r\n\](\[0-9\]+)\[\t \]+\{.*$gdb_prompt $" {
+	    set gdb_c_test_baseline $expect_out(1,string)
+	}
+	-re "$gdb_prompt $" { }
+	default { }
+    }
+    return $gdb_c_test_baseline;
+}
+
+
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
new file mode 100644
index 0000000..c61abb6
--- /dev/null
+++ b/gdb/testsuite/lib/gdb.exp
@@ -0,0 +1,1334 @@
+# Copyright (C) 1992, 1994, 1995, 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)
+
+# Generic gdb subroutines that should work for any target.  If these
+# need to be modified for any target, it can be done with a variable
+# or by passing arguments.
+
+load_lib libgloss.exp
+
+global GDB
+global CHILL_LIB
+global CHILL_RT0
+
+if ![info exists CHILL_LIB] {
+    set CHILL_LIB [findfile $base_dir/../../gcc/ch/runtime/libchill.a "$base_dir/../../gcc/ch/runtime/libchill.a" [transform -lchill]]
+}
+verbose "using CHILL_LIB = $CHILL_LIB" 2
+if ![info exists CHILL_RT0] {
+    set CHILL_RT0 [findfile $base_dir/../../gcc/ch/runtime/chillrt0.o "$base_dir/../../gcc/ch/runtime/chillrt0.o" ""]
+}
+verbose "using CHILL_RT0 = $CHILL_RT0" 2
+
+if [info exists TOOL_EXECUTABLE] {
+    set GDB $TOOL_EXECUTABLE;
+}
+if ![info exists GDB] {
+    if ![is_remote host] {
+	set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
+    } else {
+	set GDB [transform gdb];
+    }
+}
+verbose "using GDB = $GDB" 2
+
+global GDBFLAGS
+if ![info exists GDBFLAGS] {
+    set GDBFLAGS "-nx"
+}
+verbose "using GDBFLAGS = $GDBFLAGS" 2
+
+# The variable prompt is a regexp which matches the gdb prompt.  Set it if it
+# is not already set.
+global gdb_prompt
+if ![info exists prompt] then {
+    set gdb_prompt "\[(\]gdb\[)\]"
+}
+
+#
+# gdb_version -- extract and print the version number of GDB
+#
+proc default_gdb_version {} {
+    global GDB
+    global GDBFLAGS
+    global gdb_prompt
+    set fileid [open "gdb_cmd" w];
+    puts $fileid "q";
+    close $fileid;
+    set cmdfile [remote_download host "gdb_cmd"];
+    set output [remote_exec host "$GDB -nw --command $cmdfile"]
+    remote_file build delete "gdb_cmd";
+    remote_file host delete "$cmdfile";
+    set tmp [lindex $output 1];
+    set version ""
+    regexp " \[0-9\]\[^ \t\n\r\]+" "$tmp" version
+    if ![is_remote host] {
+	clone_output "[which $GDB] version $version $GDBFLAGS\n"
+    } else {
+	clone_output "$GDB on remote host version $version $GDBFLAGS\n"
+    }
+}
+
+proc gdb_version { } {
+    return [default_gdb_version];
+}
+
+#
+# gdb_unload -- unload a file if one is loaded
+#
+
+proc gdb_unload {} {
+    global verbose
+    global GDB
+    global gdb_prompt
+    send_gdb "file\n"
+    gdb_expect 60 {
+	-re "No executable file now\[^\r\n\]*\[\r\n\]" { exp_continue }
+	-re "No symbol file now\[^\r\n\]*\[\r\n\]" { exp_continue }
+	-re "A program is being debugged already..*Kill it.*y or n. $"\
+	    { send_gdb "y\n"
+		verbose "\t\tKilling previous program being debugged"
+	    exp_continue
+	}
+	-re "Discard symbol table from .*y or n.*$" {
+	    send_gdb "y\n"
+	    exp_continue
+	}
+	-re "$gdb_prompt $" {}
+	timeout {
+	    perror "couldn't unload file in $GDB (timed out)."
+	    return -1
+	}
+    }
+}
+
+# Many of the tests depend on setting breakpoints at various places and
+# running until that breakpoint is reached.  At times, we want to start
+# with a clean-slate with respect to breakpoints, so this utility proc 
+# lets us do this without duplicating this code everywhere.
+#
+
+proc delete_breakpoints {} {
+    global gdb_prompt
+
+    send_gdb "delete breakpoints\n"
+    gdb_expect 30 {
+	 -re "Delete all breakpoints.*y or n.*$" {
+	    send_gdb "y\n";
+	    exp_continue
+	}
+	 -re "$gdb_prompt $" { # This happens if there were no breakpoints
+	    }
+	 timeout { perror "Delete all breakpoints in delete_breakpoints (timeout)" ; return }
+    }
+    send_gdb "info breakpoints\n"
+    gdb_expect 30 {
+	 -re "No breakpoints or watchpoints..*$gdb_prompt $" {}
+	 -re "$gdb_prompt $" { perror "breakpoints not deleted" ; return }
+	 -re "Delete all breakpoints.*or n.*$" {
+	    send_gdb "y\n";
+	    exp_continue
+	}
+	 timeout { perror "info breakpoints (timeout)" ; return }
+    }
+}
+
+
+#
+# Generic run command.
+#
+# The second pattern below matches up to the first newline *only*.
+# Using ``.*$'' could swallow up output that we attempt to match
+# elsewhere.
+#
+proc gdb_run_cmd {args} {
+    global gdb_prompt
+
+    if [target_info exists gdb_init_command] {
+	send_gdb "[target_info gdb_init_command]\n";
+	gdb_expect 30 {
+	    -re "$gdb_prompt $" { }
+	    default {
+		perror "gdb_init_command for target failed";
+		return;
+	    }
+	}
+    }
+
+    if [target_info exists use_gdb_stub] {
+	if [target_info exists gdb,do_reload_on_run] {
+	    # According to Stu, this will always work.
+	    gdb_load "";
+	    send_gdb "continue\n";
+	    gdb_expect 60 {
+		-re "Continu\[^\r\n\]*\[\r\n\]" {}
+		default {}
+	    }
+	    return;
+	}
+
+	if [target_info exists gdb,start_symbol] {
+	    set start [target_info gdb,start_symbol];
+	} else {
+	    set start "start";
+	}
+	send_gdb  "jump *$start\n"
+	gdb_expect 30 {
+	    -re "Continuing at \[^\r\n\]*\[\r\n\]" {
+		if ![target_info exists gdb_stub] {
+		    return;
+		}
+	    }
+	    -re "No symbol \"start\" in current.*$gdb_prompt $" {
+		send_gdb "jump *_start\n";
+		exp_continue;
+	    }
+	    -re "No symbol \"_start\" in current.*$gdb_prompt $" {
+		perror "Can't find start symbol to run in gdb_run";
+		return;
+	    }
+	    -re "Line.* Jump anyway.*y or n. $" {
+		send_gdb "y\n"
+		exp_continue;
+            }
+	    -re "No symbol.*context.*$gdb_prompt $" {}
+	    -re "The program is not being run.*$gdb_prompt $" {
+		gdb_load "";
+		send_gdb "jump *$start\n";
+		exp_continue;
+	    }
+	    timeout { perror "Jump to start() failed (timeout)"; return }
+	}
+	if [target_info exists gdb_stub] {
+	    gdb_expect 60 {
+		-re "$gdb_prompt $" {
+		    send_gdb "continue\n"
+		}
+	    }
+	}
+	return
+    }
+    send_gdb "run $args\n"
+# This doesn't work quite right yet.
+    gdb_expect 60 {
+	-re "The program .* has been started already.*y or n. $" {
+	    send_gdb "y\n"
+	    exp_continue
+	}
+	-re "Starting program: \[^\r\n\]*" {}
+    }
+}
+
+proc gdb_breakpoint { function } {
+    global gdb_prompt
+    global decimal
+
+    send_gdb "break $function\n"
+    # The first two regexps are what we get with -g, the third is without -g.
+    gdb_expect 30 {
+	-re "Breakpoint \[0-9\]* at .*: file .*, line $decimal.\r\n$gdb_prompt $" {}
+	-re "Breakpoint \[0-9\]*: file .*, line $decimal.\r\n$gdb_prompt $" {}
+	-re "Breakpoint \[0-9\]* at .*$gdb_prompt $" {}
+	-re "$gdb_prompt $" { fail "setting breakpoint at $function" ; return 0 }
+	timeout { fail "setting breakpoint at $function (timeout)" ; return 0 }
+    }
+    return 1;
+}    
+
+# Set breakpoint at function and run gdb until it breaks there.
+# Since this is the only breakpoint that will be set, if it stops
+# at a breakpoint, we will assume it is the one we want.  We can't
+# just compare to "function" because it might be a fully qualified,
+# single quoted C++ function specifier.
+
+proc runto { function } {
+    global gdb_prompt
+    global decimal
+
+    delete_breakpoints
+
+    if ![gdb_breakpoint $function] {
+	return 0;
+    }
+
+    gdb_run_cmd
+    
+    # the "at foo.c:36" output we get with -g.
+    # the "in func" output we get without -g.
+    gdb_expect 30 {
+	-re "Break.* at .*:$decimal.*$gdb_prompt $" {
+	    return 1
+	}
+	-re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { 
+	    return 1
+	}
+	-re "$gdb_prompt $" { 
+	    fail "running to $function in runto"
+	    return 0
+	}
+	timeout { 
+	    fail "running to $function in runto (timeout)"
+	    return 0
+	}
+    }
+    return 1
+}
+
+#
+# runto_main -- ask gdb to run until we hit a breakpoint at main.
+#		The case where the target uses stubs has to be handled
+#		specially--if it uses stubs, assuming we hit
+#		breakpoint() and just step out of the function.
+#
+proc runto_main { } {
+    global gdb_prompt
+    global decimal
+
+    if ![target_info exists gdb_stub] {
+	return [runto main]
+    }			
+
+    delete_breakpoints
+
+    gdb_step_for_stub;
+
+    return 1
+}
+
+# gdb_test COMMAND PATTERN MESSAGE -- send a command to gdb; test the result.
+#
+# COMMAND is the command to execute, send to GDB with send_gdb.  If
+#   this is the null string no command is sent.
+# PATTERN is the pattern to match for a PASS, and must NOT include
+#   the \r\n sequence immediately before the gdb prompt.
+# MESSAGE is an optional message to be printed.  If this is
+#   omitted, then the pass/fail messages use the command string as the
+#   message.  (If this is the empty string, then sometimes we don't
+#   call pass or fail at all; I don't understand this at all.)
+#
+# Returns:
+#    1 if the test failed,
+#    0 if the test passes,
+#   -1 if there was an internal error.
+#  
+proc gdb_test { args } {
+    global verbose
+    global gdb_prompt
+    global GDB
+    upvar timeout timeout
+
+    if [llength $args]>2 then {
+	set message [lindex $args 2]
+    } else {
+	set message [lindex $args 0]
+    }
+    set command [lindex $args 0]
+    set pattern [lindex $args 1]
+
+    if [llength $args]==5 {
+	set question_string [lindex $args 3];
+	set response_string [lindex $args 4];
+    } else {
+	set question_string "^FOOBAR$"
+    }
+
+    if $verbose>2 then {
+	send_user "Sending \"$command\" to gdb\n"
+	send_user "Looking to match \"$pattern\"\n"
+	send_user "Message is \"$message\"\n"
+    }
+
+    set result -1
+    set string "${command}\n";
+    if { $command != "" } {
+	while { "$string" != "" } {
+	    set foo [string first "\n" "$string"];
+	    set len [string length "$string"];
+	    if { $foo < [expr $len - 1] } {
+		set str [string range "$string" 0 $foo];
+		if { [send_gdb "$str"] != "" } {
+		    global suppress_flag;
+
+		    if { ! $suppress_flag } {
+			perror "Couldn't send $command to GDB.";
+		    }
+		    fail "$message";
+		    return $result;
+		}
+		gdb_expect 2 {
+		    -re "\[\r\n\]" { }
+		    timeout { }
+		}
+		set string [string range "$string" [expr $foo + 1] end];
+	    } else {
+		break;
+	    }
+	}
+	if { "$string" != "" } {
+	    if { [send_gdb "$string"] != "" } {
+		global suppress_flag;
+
+		if { ! $suppress_flag } {
+		    perror "Couldn't send $command to GDB.";
+		}
+		fail "$message";
+		return $result;
+	    }
+	}
+    }
+
+    if [info exists timeout] {
+	set tmt $timeout;
+    } else {
+	global timeout;
+	if [info exists timeout] {
+	    set tmt $timeout;
+	} else {
+	    set tmt 60;
+	}
+    }
+    gdb_expect $tmt {
+	 -re "\\*\\*\\* DOSEXIT code.*" {
+	     if { $message != "" } {
+		 fail "$message";
+	     }
+	     gdb_suppress_entire_file "GDB died";
+	     return -1;
+	 }
+	 -re "Ending remote debugging.*$gdb_prompt$" {
+	    if ![isnative] then {
+		warning "Can`t communicate to remote target."
+	    }
+	    gdb_exit
+	    gdb_start
+	    set result -1
+	}
+	 -re "\[\r\n\]*($pattern)\[\r\n\]+$gdb_prompt $" {
+	    if ![string match "" $message] then {
+		pass "$message"
+	    }
+	    set result 0
+	}
+	 -re "(${question_string})$" {
+	    send_gdb "$response_string\n";
+	    exp_continue;
+	}
+	 -re "Undefined command:.*$gdb_prompt" {
+	    perror "Undefined command \"$command\"."
+	    set result 1
+	}
+	 -re "Ambiguous command.*$gdb_prompt $" {
+	    perror "\"$command\" is not a unique command name."
+	    set result 1
+	}
+	 -re "Program exited with code \[0-9\]+.*$gdb_prompt $" {
+	    if ![string match "" $message] then {
+		set errmsg "$message: the program exited"
+	    } else {
+		set errmsg "$command: the program exited"
+	    }
+	    fail "$errmsg"
+	    return -1
+	}
+	 -re "The program is not being run.*$gdb_prompt $" {
+	    if ![string match "" $message] then {
+		set errmsg "$message: the program is no longer running"
+	    } else {
+		set errmsg "$command: the program is no longer running"
+	    }
+	    fail "$errmsg"
+	    return -1
+	}
+	 -re ".*$gdb_prompt $" {
+	    if ![string match "" $message] then {
+		fail "$message"
+	    }
+	    set result 1
+	}
+	 "<return>" {
+	    send_gdb "\n"
+	    perror "Window too small."
+	}
+	 -re "\\(y or n\\) " {
+	    send_gdb "n\n"
+	    perror "Got interactive prompt."
+	}
+	 eof {
+	     perror "Process no longer exists"
+	     if { $message != "" } {
+		 fail "$message"
+	     }
+	     return -1
+	}
+	 full_buffer {
+	    perror "internal buffer is full."
+	}
+	timeout	{
+	    if ![string match "" $message] then {
+		fail "$message (timeout)"
+	    }
+	    set result 1
+	}
+    }
+    return $result
+}
+
+# Test that a command gives an error.  For pass or fail, return
+# a 1 to indicate that more tests can proceed.  However a timeout
+# is a serious error, generates a special fail message, and causes
+# a 0 to be returned to indicate that more tests are likely to fail
+# as well.
+
+proc test_print_reject { args } {
+    global gdb_prompt
+    global verbose
+
+    if [llength $args]==2 then {
+	set expectthis [lindex $args 1]
+    } else {
+	set expectthis "should never match this bogus string"
+    }
+    set sendthis [lindex $args 0]
+    if $verbose>2 then {
+	send_user "Sending \"$sendthis\" to gdb\n"
+	send_user "Looking to match \"$expectthis\"\n"
+    }
+    send_gdb "$sendthis\n"
+    #FIXME: Should add timeout as parameter.
+    gdb_expect {
+	-re "A .* in expression.*\\.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re "Invalid syntax in expression.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re "Junk after end of expression.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re "Invalid number.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re "Invalid character constant.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re "No symbol table is loaded.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re "No symbol .* in current context.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re "$expectthis.*$gdb_prompt $" {
+	    pass "reject $sendthis"
+	    return 1
+	}
+	-re ".*$gdb_prompt $" {
+	    fail "reject $sendthis"
+	    return 1
+	}
+	default {
+	    fail "reject $sendthis (eof or timeout)"
+	    return 0
+	}
+    }
+}
+
+# Given an input string, adds backslashes as needed to create a
+# regexp that will match the string.
+
+proc string_to_regexp {str} {
+    set result $str
+    regsub -all {[]*+.|()^$\[]} $str {\\&} result
+    return $result
+}
+
+# Same as gdb_test, but the second parameter is not a regexp,
+# but a string that must match exactly.
+
+proc gdb_test_exact { args } {
+    upvar timeout timeout
+
+    set command [lindex $args 0]
+
+    # This applies a special meaning to a null string pattern.  Without
+    # this, "$pattern\r\n$gdb_prompt $" will match anything, including error
+    # messages from commands that should have no output except a new
+    # prompt.  With this, only results of a null string will match a null
+    # string pattern.
+
+    set pattern [lindex $args 1]
+    if [string match $pattern ""] {
+	set pattern [string_to_regexp [lindex $args 0]]
+    } else {
+	set pattern [string_to_regexp [lindex $args 1]]
+    }
+
+    # It is most natural to write the pattern argument with only
+    # embedded \n's, especially if you are trying to avoid Tcl quoting
+    # problems.  But gdb_expect really wants to see \r\n in patterns.  So
+    # transform the pattern here.  First transform \r\n back to \n, in
+    # case some users of gdb_test_exact already do the right thing.
+    regsub -all "\r\n" $pattern "\n" pattern
+    regsub -all "\n" $pattern "\r\n" pattern
+    if [llength $args]==3 then {
+	set message [lindex $args 2]
+    } else {
+	set message $command
+    }
+
+    return [gdb_test $command $pattern $message]
+}
+
+proc gdb_reinitialize_dir { subdir } {
+    global gdb_prompt
+
+    if [is_remote host] {
+	return "";
+    }
+    send_gdb "dir\n"
+    gdb_expect 60 {
+	-re "Reinitialize source path to empty.*y or n. " {
+	    send_gdb "y\n"
+	    gdb_expect 60 {
+		-re "Source directories searched.*$gdb_prompt $" {
+		    send_gdb "dir $subdir\n"
+		    gdb_expect 60 {
+			-re "Source directories searched.*$gdb_prompt $" {
+			    verbose "Dir set to $subdir"
+			}
+			-re "$gdb_prompt $" {
+			    perror "Dir \"$subdir\" failed."
+			}
+		    }
+		}
+		-re "$gdb_prompt $" {
+		    perror "Dir \"$subdir\" failed."
+		}
+	    }
+	}
+	-re "$gdb_prompt $" {
+	    perror "Dir \"$subdir\" failed."
+	}
+    }
+}
+
+#
+# gdb_exit -- exit the GDB, killing the target program if necessary
+#
+proc default_gdb_exit {} {
+    global GDB
+    global GDBFLAGS
+    global verbose
+    global gdb_spawn_id;
+
+    gdb_stop_suppressing_tests;
+
+    if ![info exists gdb_spawn_id] {
+	return;
+    }
+
+    verbose "Quitting $GDB $GDBFLAGS"
+
+    if { [is_remote host] && [board_info host exists fileid] } {
+	send_gdb "quit\n";
+	gdb_expect 10 {
+	    -re "y or n" {
+		send_gdb "y\n";
+		exp_continue;
+	    }
+	    -re "DOSEXIT code" { }
+	    default { }
+	}
+    }
+
+    if ![is_remote host] {
+	remote_close host;
+    }
+    unset gdb_spawn_id
+}
+
+#
+# load a file into the debugger.
+# return a -1 if anything goes wrong.
+#
+proc gdb_file_cmd { arg } {
+    global verbose
+    global loadpath
+    global loadfile
+    global GDB
+    global gdb_prompt
+    upvar timeout timeout
+
+    if [is_remote host] {
+	set arg [remote_download host $arg];
+	if { $arg == "" } {
+	    error "download failed"
+	    return -1;
+	}
+    }
+
+    send_gdb "file $arg\n"
+    gdb_expect 120 {
+        -re "Reading symbols from.*done.*$gdb_prompt $" {
+            verbose "\t\tLoaded $arg into the $GDB"
+            return 0
+        }
+        -re "has no symbol-table.*$gdb_prompt $" {
+            perror "$arg wasn't compiled with \"-g\""
+            return -1
+        }
+        -re "A program is being debugged already.*Kill it.*y or n. $" {
+            send_gdb "y\n"
+                verbose "\t\tKilling previous program being debugged"
+            exp_continue
+        }
+        -re "Load new symbol table from \".*\".*y or n. $" {
+            send_gdb "y\n"
+            gdb_expect 120 {
+                -re "Reading symbols from.*done.*$gdb_prompt $" {
+                    verbose "\t\tLoaded $arg with new symbol table into $GDB"
+                    return 0
+                }
+                timeout {
+                    perror "(timeout) Couldn't load $arg, other program already loaded."
+                    return -1
+                }
+            }
+	}
+        -re "No such file or directory.*$gdb_prompt $" {
+            perror "($arg) No such file or directory\n"
+            return -1
+        }
+        -re "$gdb_prompt $" {
+            perror "couldn't load $arg into $GDB."
+            return -1
+            }
+        timeout {
+            perror "couldn't load $arg into $GDB (timed out)."
+            return -1
+        }
+        eof {
+            # This is an attempt to detect a core dump, but seems not to
+            # work.  Perhaps we need to match .* followed by eof, in which
+            # gdb_expect does not seem to have a way to do that.
+            perror "couldn't load $arg into $GDB (end of file)."
+            return -1
+        }
+    }
+}
+
+#
+# start gdb -- start gdb running, default procedure
+#
+# When running over NFS, particularly if running many simultaneous
+# tests on different hosts all using the same server, things can
+# get really slow.  Give gdb at least 3 minutes to start up.
+#
+proc default_gdb_start { } {
+    global verbose
+    global GDB
+    global GDBFLAGS
+    global gdb_prompt
+    global timeout
+    global gdb_spawn_id;
+
+    gdb_stop_suppressing_tests;
+
+    verbose "Spawning $GDB -nw $GDBFLAGS"
+
+    if [info exists gdb_spawn_id] {
+	return 0;
+    }
+
+    if ![is_remote host] {
+	if { [which $GDB] == 0 } then {
+	    perror "$GDB does not exist."
+	    exit 1
+	}
+    }
+    set res [remote_spawn host "$GDB -nw $GDBFLAGS [host_info gdb_opts]"];
+    if { $res < 0 || $res == "" } {
+	perror "Spawning $GDB failed."
+	return 1;
+    }
+    gdb_expect 360 {
+	-re "\[\r\n\]$gdb_prompt $" {
+	    verbose "GDB initialized."
+	}
+	-re "$gdb_prompt $"	{
+	    perror "GDB never initialized."
+	    return -1
+	}
+	timeout	{
+	    perror "(timeout) GDB never initialized after 10 seconds."
+	    remote_close host;
+	    return -1
+	}
+    }
+    set gdb_spawn_id -1;
+    # force the height to "unlimited", so no pagers get used
+
+    send_gdb "set height 0\n"
+    gdb_expect 10 {
+	-re "$gdb_prompt $" { 
+	    verbose "Setting height to 0." 2
+	}
+	timeout {
+	    warning "Couldn't set the height to 0"
+	}
+    }
+    # force the width to "unlimited", so no wraparound occurs
+    send_gdb "set width 0\n"
+    gdb_expect 10 {
+	-re "$gdb_prompt $" {
+	    verbose "Setting width to 0." 2
+	}
+	timeout {
+	    warning "Couldn't set the width to 0."
+	}
+    }
+    return 0;
+}
+
+# * For crosses, the CHILL runtime doesn't build because it can't find
+# setjmp.h, stdio.h, etc.
+# * For AIX (as of 16 Mar 95), (a) there is no language code for
+# CHILL in output_epilog in gcc/config/rs6000/rs6000.c, (b) collect2
+# does not get along with AIX's too-clever linker.
+# * On Irix5, there is a bug whereby set of bool, etc., don't get
+# TYPE_LOW_BOUND for the bool right because force_to_range_type doesn't
+# work with stub types.
+# Lots of things seem to fail on the PA, and since it's not a supported
+# chill target at the moment, don't run the chill tests.
+
+proc skip_chill_tests {} {
+    if ![info exists do_chill_tests] {
+	return 1;
+    }
+    eval set skip_chill [expr ![isnative] || [istarget "*-*-aix*"] || [istarget "*-*-irix5*"] || [istarget "*-*-irix6*"] || [istarget "alpha-*-osf*"] || [istarget "hppa*-*-*"]]
+    verbose "Skip chill tests is $skip_chill"
+    return $skip_chill
+}
+
+# skip all the tests in the file if you are not on an hppa running hpux target.
+# and you compiled with gcc
+proc skip_hp_tests {gcc_used} {
+  #  if ![info exists do_hp_tests] {
+  #	return 1;
+  #  }
+    eval set skip_hp [expr ![isnative] || ![istarget "hppa*-*-hpux*"] || $gcc_used!=0 ]
+    verbose "Skip hp tests is $skip_hp"
+    return $skip_hp
+}
+
+proc get_compiler_info {binfile args} {
+    # Create and source the file that provides information about the compiler
+    # used to compile the test case.
+    # Compiler_type can be null or c++. If null we assume c.
+    global srcdir
+    global subdir
+    # These two come from compiler.c.
+    global signed_keyword_not_used
+    global gcc_compiled
+
+    if {![istarget "hppa*-*-hpux*"]} {
+	if { [llength $args] > 0 } {
+	    if {$args == "c++"} {
+	if { [gdb_compile "${srcdir}/${subdir}/compiler.cc" "${binfile}.ci" preprocess {}] != "" } {
+		    perror "Couldn't make ${binfile}.ci file"
+		    return 1;
+		}
+	    }
+	} else {
+	    if { [gdb_compile "${srcdir}/${subdir}/compiler.c" "${binfile}.ci" preprocess {}] != "" } {
+		perror "Couldn't make ${binfile}.ci file"
+		return 1;
+	    }
+	}
+    } else {
+	if { [llength $args] > 0 } {
+	    if {$args == "c++"} {
+		if { [eval gdb_preprocess \
+			[list "${srcdir}/${subdir}/compiler.cc" "${binfile}.ci"] \
+			$args] != "" } {
+		    perror "Couldn't make ${binfile}.ci file"
+		    return 1;
+		}
+	    }
+	} else {
+	    if { [eval gdb_preprocess \
+		    [list "${srcdir}/${subdir}/compiler.c" "${binfile}.ci"] \
+		    $args] != "" } {
+		perror "Couldn't make ${binfile}.ci file"
+		return 1;
+	    }
+	}
+    }
+    
+    source ${binfile}.ci
+    return 0;
+}
+
+proc gdb_preprocess {source dest args} {
+    global CC_FOR_TARGET
+    global CXX_FOR_TARGET
+
+    if { [llength $args] == 0 } {
+        set which_compiler "c"
+    } else {
+        if { $args =="c++" } {
+            set which_compiler "c++"
+        } else {
+	    perror "Unknown compiler type supplied to gdb_preprocess"
+	    return 1;
+        }
+    }
+
+    if [info exists CC_FOR_TARGET] {
+	if { $which_compiler == "c"} {
+	    set compiler $CC_FOR_TARGET;
+	}
+    }
+ 
+    if [info exists CXX_FOR_TARGET] {
+	if { $which_compiler == "c++"} {
+	    set compiler $CXX_FOR_TARGET;
+	}
+    }
+
+    if { ![info exists compiler] } {
+        if { $which_compiler == "c" } {
+	    if {[info exists CC]} {
+		set compiler $CC;
+	    }
+	}
+        if { $which_compiler == "c++" } {
+	    if {[info exists CXX]} {
+		set compiler $CXX;
+	    }
+	}
+	if {![info exists compiler]} {
+	    set compiler [board_info [target_info name] compiler];
+	    if { $compiler == "" } {
+		puts "default_target_compile: No compiler to compile with";
+		return "default_target_compile: No compiler to compile with";
+	    }
+	}
+    }
+
+    set cmdline "$compiler -E $source > $dest"
+
+    verbose "Invoking $compiler -E $source > $dest"
+    verbose -log "Executing on local host: $cmdline" 2
+    set status [catch "exec ${cmdline}" exec_output]
+
+    set result [prune_warnings $exec_output]
+    regsub "\[\r\n\]*$" "$result" "" result;
+    regsub "^\[\r\n\]*" "$result" "" result;
+    if { $result != "" } {
+        clone_output "gdb compile failed, $result"
+    }
+    return $result;
+}
+
+proc gdb_compile {source dest type options} {
+    global GDB_TESTCASE_OPTIONS;
+
+    if [target_info exists gdb_stub] {
+	set options2 { "additional_flags=-Dusestubs" }
+	lappend options "libs=[target_info gdb_stub]";
+	set options [concat $options2 $options]
+    }
+    if [target_info exists is_vxworks] {
+	set options2 { "additional_flags=-Dvxworks" }
+	lappend options "libs=[target_info gdb_stub]";
+	set options [concat $options2 $options]
+    }
+    if [info exists GDB_TESTCASE_OPTIONS] {
+	lappend options "additional_flags=$GDB_TESTCASE_OPTIONS";
+    }
+    verbose "options are $options"
+    verbose "source is $source $dest $type $options"
+
+    set result [target_compile $source $dest $type $options];
+    regsub "\[\r\n\]*$" "$result" "" result;
+    regsub "^\[\r\n\]*" "$result" "" result;
+    if { $result != "" } {
+	clone_output "gdb compile failed, $result"
+    }
+    return $result;
+}
+
+proc send_gdb { string } {
+    global suppress_flag;
+    if { $suppress_flag } {
+	return "suppressed";
+    }
+    return [remote_send host "$string"];
+}
+
+#
+#
+
+proc gdb_expect { args } {
+    if { [llength $args] == 2  && [lindex $args 0] != "-re" } {
+	set gtimeout [lindex $args 0];
+	set expcode [list [lindex $args 1]];
+    } else {
+	upvar timeout timeout;
+
+	set expcode $args;
+	if [target_info exists gdb,timeout] {
+	    if [info exists timeout] {
+		if { $timeout < [target_info gdb,timeout] } {
+		    set gtimeout [target_info gdb,timeout];
+		} else {
+		    set gtimeout $timeout;
+		}
+	    } else {
+		set gtimeout [target_info gdb,timeout];
+	    }
+	}
+
+	if ![info exists gtimeout] {
+	    global timeout;
+	    if [info exists timeout] {
+		set gtimeout $timeout;
+	    } else {
+		# Eeeeew.
+		set gtimeout 60;
+	    }
+	}
+    }
+    global suppress_flag;
+    global remote_suppress_flag;
+    if [info exists remote_suppress_flag] {
+	set old_val $remote_suppress_flag;
+    }
+    if [info exists suppress_flag] {
+	if { $suppress_flag } {
+	    set remote_suppress_flag 1;
+	}
+    }
+    set code [catch {uplevel remote_expect host $gtimeout $expcode} string];
+    if [info exists old_val] {
+	set remote_suppress_flag $old_val;
+    } else {
+	if [info exists remote_suppress_flag] {
+	    unset remote_suppress_flag;
+	}
+    }
+
+    if {$code == 1} {
+        global errorInfo errorCode;
+
+	return -code error -errorinfo $errorInfo -errorcode $errorCode $string
+    } elseif {$code == 2} {
+	return -code return $string
+    } elseif {$code == 3} {
+	return
+    } elseif {$code > 4} {
+	return -code $code $string
+    }
+}
+
+proc gdb_suppress_entire_file { reason } {
+    global suppress_flag;
+
+    warning "$reason\n";
+    set suppress_flag -1;
+}
+
+#
+# Set suppress_flag, which will cause all subsequent calls to send_gdb and
+# gdb_expect to fail immediately (until the next call to 
+# gdb_stop_suppressing_tests).
+#
+proc gdb_suppress_tests { args } {
+    global suppress_flag;
+
+    return;  # fnf - disable pending review of results where
+             # testsuite ran better without this
+    incr suppress_flag;
+
+    if { $suppress_flag == 1 } {
+	if { [llength $args] > 0 } {
+	    warning "[lindex $args 0]\n";
+	} else {
+	    warning "Because of previous failure, all subsequent tests in this group will automatically fail.\n";
+	}
+    }
+}
+
+#
+# Clear suppress_flag.
+#
+proc gdb_stop_suppressing_tests { } {
+    global suppress_flag;
+
+    if [info exists suppress_flag] {
+	if { $suppress_flag > 0 } {
+	    set suppress_flag 0;
+	    clone_output "Tests restarted.\n";
+	}
+    } else {
+	set suppress_flag 0;
+    }
+}
+
+proc gdb_clear_suppressed { } {
+    global suppress_flag;
+
+    set suppress_flag 0;
+}
+
+proc gdb_start { } {
+    default_gdb_start
+}
+
+proc gdb_exit { } {
+    catch default_gdb_exit
+}
+
+#
+# gdb_load -- load a file into the debugger.
+#             return a -1 if anything goes wrong.
+#
+proc gdb_load { arg } {
+    return [gdb_file_cmd $arg]
+}
+
+proc gdb_continue { function } {
+    global decimal
+
+    return [gdb_test "continue" ".*Breakpoint $decimal, $function .*" "continue to $function"];
+}
+
+proc default_gdb_init { args } {
+    gdb_clear_suppressed;
+
+    # Uh, this is lame. Really, really, really lame. But there's this *one*
+    # testcase that will fail in random places if we don't increase this.
+    match_max -d 20000
+
+    # We want to add the name of the TCL testcase to the PASS/FAIL messages.
+    if { [llength $args] > 0 } {
+	global pf_prefix
+
+	set file [lindex $args 0];
+
+	set pf_prefix "[file tail [file dirname $file]]/[file tail $file]:";
+    }
+    global gdb_prompt;
+    if [target_info exists gdb_prompt] {
+	set gdb_prompt [target_info gdb_prompt];
+    } else {
+	set gdb_prompt "\\(gdb\\)"
+    }
+}
+
+proc gdb_init { args } {
+    return [eval default_gdb_init $args];
+}
+
+proc gdb_finish { } {
+    gdb_exit;
+}
+
+global debug_format
+
+# Run the gdb command "info source" and extract the debugging format
+# information from the output and save it in debug_format.
+
+proc get_debug_format { } {
+    global gdb_prompt
+    global verbose
+    global expect_out
+    global debug_format
+
+    set debug_format "unknown"
+    send_gdb "info source\n"
+    gdb_expect 10 {
+	-re "Compiled with (.*) debugging format.\r\n$gdb_prompt $" {
+	    set debug_format $expect_out(1,string)
+	    verbose "debug format is $debug_format"
+	    return 1;
+	}
+	-re "No current source file.\r\n$gdb_prompt $" {
+	    perror "get_debug_format used when no current source file"
+	    return 0;
+	}
+	-re "$gdb_prompt $" {
+	    warning "couldn't check debug format (no valid response)."
+	    return 1;
+	}
+	timeout {
+	    warning "couldn't check debug format (timed out)."
+	    return 1;
+	}
+    }
+}
+
+# Like setup_xfail, but takes the name of a debug format (DWARF 1,
+# COFF, stabs, etc).  If that format matches the format that the
+# current test was compiled with, then the next test is expected to
+# fail for any target.  Returns 1 if the next test or set of tests is
+# expected to fail, 0 otherwise (or if it is unknown).  Must have
+# previously called get_debug_format.
+
+proc setup_xfail_format { format } {
+    global debug_format
+
+    if [string match $debug_format $format] then {
+	setup_xfail "*-*-*"
+	return 1;
+    }
+    return 0
+}    
+
+proc gdb_step_for_stub { } {
+    global gdb_prompt;
+
+    if ![target_info exists gdb,use_breakpoint_for_stub] {
+	if [target_info exists gdb_stub_step_command] {
+	    set command [target_info gdb_stub_step_command];
+	} else {
+	    set command "step";
+	}
+	send_gdb "${command}\n";
+	set tries 0;
+	gdb_expect 60 {
+	    -re "(main.* at |.*in .*start).*$gdb_prompt" {
+		return;
+	    }
+	    -re ".*$gdb_prompt" {
+		incr tries;
+		if { $tries == 5 } {
+		    fail "stepping out of breakpoint function";
+		    return;
+		}
+		send_gdb "${command}\n";
+		exp_continue;
+	    }
+	    default {
+		fail "stepping out of breakpoint function";
+		return;
+	    }
+	}
+    }
+    send_gdb "where\n";
+    gdb_expect {
+	-re "main\[^\r\n\]*at \(\[^:]+\):\(\[0-9\]+\)" {
+	    set file $expect_out(1,string);
+	    set linenum [expr $expect_out(2,string) + 1];
+	    set breakplace "${file}:${linenum}";
+	}
+	default {}
+    }
+    send_gdb "break ${breakplace}\n";
+    gdb_expect 60 {
+	-re "Breakpoint (\[0-9\]+) at.*$gdb_prompt" {
+	    set breakpoint $expect_out(1,string);
+	}
+	-re "Breakpoint (\[0-9\]+): file.*$gdb_prompt" {
+	    set breakpoint $expect_out(1,string);
+	}
+	default {}
+    }
+    send_gdb "continue\n";
+    gdb_expect 60 {
+	-re "Breakpoint ${breakpoint},.*$gdb_prompt" {
+	    gdb_test "delete $breakpoint" ".*" "";
+	    return;
+	}
+	default {}
+    }
+}
+
+### gdb_get_line_number TEXT [FILE]
+###
+### Search the source file FILE, and return the line number of a line
+### containing TEXT.  Use this function instead of hard-coding line
+### numbers into your test script.
+###
+### Specifically, this function uses GDB's "search" command to search
+### FILE for the first line containing TEXT, and returns its line
+### number.  Thus, FILE must be a source file, compiled into the
+### executable you are running.  If omitted, FILE defaults to the
+### value of the global variable `srcfile'; most test scripts set
+### `srcfile' appropriately at the top anyway.
+###
+### Use this function to keep your test scripts independent of the
+### exact line numbering of the source file.  Don't write:
+### 
+###   send_gdb "break 20"
+### 
+### This means that if anyone ever edits your test's source file, 
+### your test could break.  Instead, put a comment like this on the
+### source file line you want to break at:
+### 
+###   /* breakpoint spot: frotz.exp: test name */
+### 
+### and then write, in your test script (which we assume is named
+### frotz.exp):
+### 
+###   send_gdb "break [gdb_get_line_number "frotz.exp: test name"]\n"
+###
+### (Yes, Tcl knows how to handle the nested quotes and brackets.
+### Try this:
+### 	$ tclsh
+### 	% puts "foo [lindex "bar baz" 1]"
+### 	foo baz
+### 	% 
+### Tcl is quite clever, for a little stringy language.)
+
+proc gdb_get_line_number {text {file /omitted/}} {
+    global gdb_prompt;
+    global srcfile;
+
+    if {! [string compare $file /omitted/]} {
+	set file $srcfile
+    }
+
+    set result -1;
+    gdb_test "list ${file}:1,1" ".*" ""
+    send_gdb "search ${text}\n"
+    gdb_expect {
+        -re "\[\r\n\]+(\[0-9\]+)\[ \t\].*${text}.*$gdb_prompt $" {
+            set result $expect_out(1,string)
+        }
+        -re ".*$gdb_prompt $" {
+            fail "find line number containing \"${text}\""
+        }
+        timeout {
+            fail "find line number containing \"${text}\" (timeout)"
+        }
+    }
+    return $result;
+}
+
+
diff --git a/gdb/testsuite/lib/trace-support.exp b/gdb/testsuite/lib/trace-support.exp
new file mode 100644
index 0000000..4765791
--- /dev/null
+++ b/gdb/testsuite/lib/trace-support.exp
@@ -0,0 +1,307 @@
+# Copyright (C) 1998 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
+
+
+#
+# Support procedures for trace testing
+#
+
+
+#
+# Procedure: gdb_target_supports_trace
+# Returns true if GDB is connected to a target that supports tracing.
+# Allows tests to abort early if not running on a trace-aware target.
+#
+
+proc gdb_target_supports_trace { } {
+    global gdb_prompt
+
+    send_gdb "tstatus\n"
+    gdb_expect {
+	-re "\[Tt\]race can only be run on.*$gdb_prompt $" {
+	    return 0
+	}
+	-re "\[Tt\]race can not be run on.*$gdb_prompt $" {
+	    return 0
+	}
+	-re "\[Tt\]arget does not support.*$gdb_prompt $" {
+	    return 0
+	}
+	-re ".*\[Ee\]rror.*$gdb_prompt $" {
+	    return 0
+	}
+	-re ".*\[Ww\]arning.*$gdb_prompt $" {
+	    return 0
+	}
+	-re ".*$gdb_prompt $" {
+	    return 1
+	}
+	timeout {
+	    return 0
+	}
+    }
+}
+
+
+#
+# Procedure: gdb_delete_tracepoints
+# Many of the tests depend on setting tracepoints at various places and
+# running until that tracepoint is reached.  At times, we want to start
+# with a clean slate with respect to tracepoints, so this utility proc 
+# lets us do this without duplicating this code everywhere.
+#
+
+proc gdb_delete_tracepoints {} {
+    global gdb_prompt
+
+    send_gdb "delete tracepoints\n"
+    gdb_expect 30 {
+	-re "Delete all tracepoints.*y or n.*$" {
+	    send_gdb "y\n";
+	    exp_continue
+	}
+	-re ".*$gdb_prompt $" { # This happens if there were no tracepoints }
+	timeout { 
+	    perror "Delete all tracepoints in delete_tracepoints (timeout)" 
+	    return 
+	}
+    }
+    send_gdb "info tracepoints\n"
+    gdb_expect 30 {
+	 -re "No tracepoints.*$gdb_prompt $" {}
+	 -re "$gdb_prompt $" { perror "tracepoints not deleted" ; return }
+	 timeout { perror "info tracepoints (timeout)" ; return }
+    }
+}
+
+#
+# Procedure: gdb_trace_setactions
+#   Define actions for a tracepoint.
+#   Arguments:
+#	testname   -- identifying string for pass/fail output
+#	tracepoint -- to which tracepoint do these actions apply? (optional)
+#	args       -- list of actions to be defined.
+#   Returns:
+#	zero       -- success
+#	non-zero   -- failure
+
+proc gdb_trace_setactions { testname tracepoint args } {
+    global gdb_prompt;
+
+    set state 0;
+    set passfail "pass";
+    send_gdb "actions $tracepoint\n";
+    set expected_result "";
+    gdb_expect 5 {
+	-re "No tracepoint number .*$gdb_prompt $" {
+	    fail $testname
+	    return 1;
+	}
+	-re "Enter actions for tracepoint $tracepoint.*>" {
+	    if { [llength $args] > 0 } {
+		set lastcommand "[lindex $args $state]";
+		send_gdb "[lindex $args $state]\n";
+		incr state;
+		set expected_result [lindex $args $state];
+		incr state;
+	    } else {
+		send_gdb "end\n";
+	    }
+	    exp_continue;
+	}
+	-re "\(.*\)\[\r\n\]+\[ \t]*> $" {
+	    if { $expected_result != "" } {
+		regsub "^\[^\r\n\]+\[\r\n\]+" "$expect_out(1,string)" "" out;
+		if ![regexp $expected_result $out] {
+		    set passfail "fail";
+		}
+		set expected_result "";
+	    }
+	    if { $state < [llength $args] } {
+		send_gdb "[lindex $args $state]\n";
+		incr state;
+		set expected_result [lindex $args $state];
+		incr state;
+	    } else {
+		send_gdb "end\n";
+		set expected_result "";
+	    }
+	    exp_continue;
+	}
+	-re "\(.*\)$gdb_prompt $" {
+	    if { $expected_result != "" } {
+		if ![regexp $expected_result $expect_out(1,string)] {
+		    set passfail "fail";
+		}
+		set expected_result "";
+	    }
+	    if { [llength $args] < $state } {
+		set passfail "fail";
+	    }
+	}
+	default {
+	    set passfail "fail";
+	}
+    }
+    if { $testname != "" } {
+	$passfail $testname;
+    }
+    if { $passfail == "pass" } then { 
+	return 0;
+    } else {
+	return 1;
+    }
+}
+
+#
+# Procedure: gdb_tfind_test
+#   Find a specified trace frame.
+#   Arguments: 
+#	testname   -- identifying string for pass/fail output
+#	tfind_arg  -- frame (line, PC, etc.) identifier
+#	exp_res    -- Expected result of frame test
+#	args       -- Test expression
+#   Returns:
+#	zero       -- success
+#	non-zero   -- failure
+#
+
+proc gdb_tfind_test { testname tfind_arg exp_res args } {
+    global gdb_prompt;
+
+    if { "$args" != "" } {
+	set expr "$exp_res";
+	set exp_res "$args";
+    } else {
+	set expr "(int) \$trace_frame";
+    }
+    set passfail "fail";
+
+    gdb_test "tfind $tfind_arg" "" ""
+    send_gdb "printf \"x \%d x\\n\", $expr\n";
+    gdb_expect 10 {
+	-re "x (-*\[0-9\]+) x" {
+	    if { $expect_out(1,string) == $exp_res } {
+		set passfail "pass";
+	    }
+	    exp_continue;
+	}
+	-re "$gdb_prompt $" { }
+    }
+    $passfail "$testname";
+    if { $passfail == "pass" } then { 
+	return 0;
+    } else {
+	return 1;
+    }
+}
+
+#
+# Procedure: gdb_readexpr
+#   Arguments:
+#	gdb_expr    -- the expression whose value is desired
+#   Returns:
+#	the value of gdb_expr, as evaluated by gdb.
+#       [FIXME: returns -1 on error, which is sometimes a legit value]
+#
+
+proc gdb_readexpr { gdb_expr } {
+    global gdb_prompt;
+
+    set result -1;
+    send_gdb "print $gdb_expr\n"
+    gdb_expect 5 {
+	-re "\[$\].*= (\[0-9\]+).*$gdb_prompt $" {
+	    set result $expect_out(1,string);
+	}
+	-re "$gdb_prompt $" { }
+	default { }
+    }
+    return $result;
+}
+
+#
+# Procedure: gdb_gettpnum
+#   Arguments:
+#	tracepoint (optional): if supplied, set a tracepoint here.
+#   Returns:
+#	the tracepoint ID of the most recently set tracepoint.
+#
+
+proc gdb_gettpnum { tracepoint } {
+    global gdb_prompt;
+
+    if { $tracepoint != "" } {
+	gdb_test "trace $tracepoint" "" ""
+    }
+    return [gdb_readexpr "\$tpnum"];
+}
+
+
+#
+# Procedure: gdb_find_function_baseline
+#   Arguments:
+#	func_name -- name of source function
+#   Returns:
+#	Sourcefile line of function definition (open curly brace),
+#	or -1 on failure.  Caller must check return value.
+#   Note:
+#	Works only for open curly brace at beginning of source line!
+#
+
+proc gdb_find_function_baseline { func_name } {
+    global gdb_prompt;
+
+    set baseline -1;
+
+    send_gdb "list $func_name\n"
+#    gdb_expect {
+#	-re "\[\r\n\]\[\{\].*$gdb_prompt $" {
+#	    set baseline 1
+#        }
+#    }
+}
+
+#
+# Procedure: gdb_find_function_baseline
+#   Arguments:
+#	filename: name of source file of desired function.
+#   Returns:
+#	Sourcefile line of function definition (open curly brace),
+#	or -1 on failure.  Caller must check return value.
+#   Note:
+#	Works only for open curly brace at beginning of source line!
+#
+
+proc gdb_find_recursion_test_baseline { filename } {
+    global gdb_prompt;
+
+    set baseline -1;
+
+    gdb_test "list $filename:1" "" ""
+    send_gdb "search gdb_recursion_test line 0\n"
+    gdb_expect {
+	-re "(\[0-9\]+)\[\t \]+\{.*line 0.*$gdb_prompt $" {
+	    set baseline $expect_out(1,string);
+	}
+	-re "$gdb_prompt $" { }
+	default { }
+    }
+    return $baseline;
+}