426 lines
13 KiB
Text
426 lines
13 KiB
Text
# Copyright (C) 1988, 1990, 1991, 1992, 1994, 1997 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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# This file was written by Rob Savoye. (rob@cygnus.com)
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if $tracelevel then {
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strace $tracelevel
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}
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set prms_id 0
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set bug_id 0
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# are we on a target board
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if [is_remote target] {
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return
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}
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if [istarget "m68k*-*-hpux*"] then {
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# The top-level makefile passes CFLAGS= (no -g) for hp300. This probably
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# should be fixed (it is only needed for gcc bootstrapping, not gdb),
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# but until then.....
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setup_xfail "*-*-*"
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fail "cannot test self if compiled without debug info"
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return -1
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}
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# Not all of the lines of code near the start of main are executed for
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# every machine. Also, optimization may reorder some of the lines.
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# So all we do is try to step or next over everything until we get
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# to a line that we know is always executed.
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proc do_steps_and_nexts {} {
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global gdb_prompt
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global srcdir
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gdb_reinitialize_dir $srcdir/..
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for {set count 0} {$count < 20} {incr count} {
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send_gdb "list\n"
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gdb_expect {
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-re ".*symarg = NULL.*$gdb_prompt $" {
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set description "step over symarg initialization"
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set command "step"
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}
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-re ".*execarg = NULL.*$gdb_prompt $" {
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set description "step over execarg initialization"
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set command "step"
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}
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-re ".*corearg = NULL.*$gdb_prompt $" {
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set description "step over corearg initialization"
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set command "step"
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}
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-re ".*cdarg = NULL.*$gdb_prompt $" {
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set description "step over cdarg initialization"
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set command "step"
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}
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-re ".*ttyarg = NULL.*$gdb_prompt $" {
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set description "step over ttyarg initialization"
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set command "step"
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}
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-re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
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set description "next over get_run_time and everything it calls"
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set command "next"
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}
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-re ".*START_PROGRESS.*$gdb_prompt $" {
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set description "next over START_PROGRESS and everything it calls"
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set command "next"
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}
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-re ".*mac_init.*$gdb_prompt $" {
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set description "next over mac_init and everything it calls"
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set command "next"
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}
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-re ".*init_malloc.*$gdb_prompt $" {
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set description "next over init_malloc and everything it calls"
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set command "next"
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}
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-re ".*count . 0x3.*$gdb_prompt $" {
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set description "next over conditional stack alignment code 1"
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set command "next"
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}
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-re ".*if .i != 0.*$gdb_prompt $" {
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set description "next over conditional stack alignment code 2"
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set command "next"
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}
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-re ".*alloca .i - 4.*$gdb_prompt $" {
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set description "next over conditional stack alignment alloca"
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set command "next"
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}
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-re ".*SET_TOP_LEVEL.*$gdb_prompt $" {
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set description "next over SET_TOP_LEVEL call"
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set command "next"
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}
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-re ".*cmdsize = 1.*$gdb_prompt $" {
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set description "step over cmdsize initialization"
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set command "next"
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}
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-re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
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set description "next over cmdarg initialization via xmalloc"
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set command "next"
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}
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-re ".*ncmd = 0.*$gdb_prompt $" {
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set description "next over ncmd initialization"
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set command "next"
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}
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-re ".*dirsize = 1.*$gdb_prompt $" {
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set description "next over dirsize initialization"
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set command "next"
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}
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-re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
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return
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}
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-re "\[ \t\]+\{\r\n$gdb_prompt $" {
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setup_xfail "mips-*-irix5*"
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fail "$description ended up at odd location"
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}
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-re ".*main.c.*No such file or directory.*$gdb_prompt $" {
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setup_xfail "rs6000-*-aix3*"
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fail "must be able to list source lines"
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return
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}
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-re ".*$gdb_prompt $" {
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fail "unknown source line after $description"
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return
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}
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default {
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fail "unknown source line near main"
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return
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}
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}
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send_gdb "$command\n"
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gdb_expect {
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-re ".*No such file or directory.\r\n$gdb_prompt $" {
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fail "$description (no source available)"
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}
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-re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
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fail "$description (no source available)"
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}
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-re ".*$gdb_prompt $" {
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pass "$description"
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}
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timeout {
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fail "$description (timeout)"
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}
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}
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}
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}
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proc test_with_self { executable } {
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global gdb_prompt
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global tool
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global det_file
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global decimal
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global timeout
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# load yourself into the debugger
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# This can take a relatively long time, particularly for testing where
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# the executable is being accessed over a network, or where gdb does not
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# support partial symbols for a particular target and has to load the
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# entire symbol table. Set the timeout to 10 minutes, which should be
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# adequate for most environments (it *has* timed out with 5 min on a
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# SPARCstation SLC under moderate load, so this isn't unreasonable).
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# After gdb is started, set the timeout to 30 seconds for the duration
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# of this test, and then back to the original value.
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set oldtimeout $timeout
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set timeout 600
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verbose "Timeout is now $timeout seconds" 2
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if {[gdb_load $executable] <0} then {
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set timeout $oldtimeout
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verbose "Timeout is now $timeout seconds" 2
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return -1
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}
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set timeout $oldtimeout
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verbose "Timeout is now $timeout seconds" 2
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# disassemble yourself
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gdb_test "x/10i main" \
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"x/10i.*main.*main.$decimal.*main.$decimal.*" \
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"Disassemble main"
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# Set a breakpoint at main
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gdb_test "break main" \
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"Breakpoint.*at.* file.*, line.*" \
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"breakpoint in main"
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# We'll need this when we send a ^C to GDB. Need to do it before we
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# run the program and gdb starts saving and restoring tty states.
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# On Ultrix, we don't need it and it is really slow (because shell_escape
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# doesn't use vfork).
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if ![istarget "*-*-ultrix*"] then {
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gdb_test "shell stty intr '^C'" "" \
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"set interrupt character in test_with_self"
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}
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# FIXME: If we put this after the run to main, the first list
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# command doesn't print the same line as the current line where
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# gdb is stopped.
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gdb_test "set listsize 1" "" "set listsize to 1"
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# run yourself
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# It may take a very long time for the inferior gdb to start (lynx),
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# so we bump it back up for the duration of this command.
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set timeout 600
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set description "run until breakpoint at main"
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send_gdb "run -nw\n"
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gdb_expect {
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-re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.* at .*main.c:.*$gdb_prompt $" {
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pass "$description"
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}
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-re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.*$gdb_prompt $" {
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xfail "$description (line numbers scrambled?)"
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}
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-re "vfork: No more processes.*$gdb_prompt $" {
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fail "$description (out of virtual memory)"
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set timeout $oldtimeout
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verbose "Timeout is now $timeout seconds" 2
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return -1
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}
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-re ".*$gdb_prompt $" {
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fail "$description"
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set timeout $oldtimeout
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verbose "Timeout is now $timeout seconds" 2
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return -1
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}
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timeout {
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fail "$description (timeout)"
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}
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}
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set timeout $oldtimeout
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verbose "Timeout is now $timeout seconds" 2
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# do we have a version number ?
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send_gdb "print version\n"
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gdb_expect {
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-re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
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pass "printed version"
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}
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-re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
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pass "printed version with cast"
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}
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-re ".*$gdb_prompt $" { fail "printed version" }
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timeout { fail "(timeout) printed version" }
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}
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do_steps_and_nexts
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gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
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# do_steps_and_nexts left us ready to execute an xmalloc call,
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# so give that a try.
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# If we don't actually enter the xmalloc call when we give a
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# step command that seems like a genuine bug. It seems to happen
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# on most RISC processors.
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setup_xfail "alpha-*-*" "hppa*-*-*" "mips-*-*"
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set description "step into xmalloc call"
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send_gdb "step\n"
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gdb_expect {
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-re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
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pass "$description"
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}
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-re ".*No such file or directory.\r\n$gdb_prompt $" {
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pass "$description (no source available)"
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}
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-re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
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pass "$description (no source available)"
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}
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-re ".*$gdb_prompt $" {
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fail "$description"
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}
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timeout {
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fail "$description (timeout)"
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}
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}
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# start the "xgdb" process
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send_gdb "continue\n"
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gdb_expect {
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-re "GNU gdb \[0-9\.\]*.*
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Copyright \[0-9\]* Free Software Foundation, Inc.*
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GDB is free software, covered by the GNU General Public License, and you are.*
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welcome to change it and/or distribute copies of it under certain conditions.*
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Type \"show copying\" to see the conditions.*
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There is absolutely no warranty for GDB. Type \"show warranty\" for details.*
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This GDB was configured as .*$gdb_prompt $"\
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{ pass "xgdb is at prompt" }
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-re "GDB is free software and you are welcome to distribute copies of it.*
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under certain conditions; type \"show copying\" to see the conditions..*
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There is absolutely no warranty for GDB; type \"show warranty\" for details..*
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GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$gdb_prompt $"\
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{ pass "xgdb is at prompt (obsolescent gdb)" }
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-re ".*$gdb_prompt $" { fail "xgdb is at prompt" }
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timeout { fail "(timeout) xgdb is at prompt" }
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}
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# set xgdb prompt so we can tell which is which
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send_gdb "set prompt (xgdb) \n"
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gdb_expect {
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-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" { pass "Set xgdb prompt" }
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-re ".*$gdb_prompt $" { fail "Set xgdb prompt" }
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default { fail "(timeout) Set xgdb prompt" }
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}
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# kill the xgdb process
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set description "send ^C to child process"
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send_gdb "\003"
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gdb_expect {
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-re "Program received signal SIGINT.*$gdb_prompt $" {
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pass "$description"
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}
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-re ".*$gdb_prompt $" {
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fail "$description"
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}
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timeout {
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fail "$description (timeout)"
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}
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}
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set description "send SIGINT signal to child process"
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send_gdb "signal SIGINT\n"
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gdb_expect {
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-re "Continuing with signal SIGINT.*$gdb_prompt $" {
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pass "$description"
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}
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-re ".*$gdb_prompt $" {
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fail "$description"
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}
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timeout {
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fail "$description (timeout)"
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}
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}
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# get a stack trace
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#
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# This fails on some linux systems for unknown reasons. On the
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# systems where it fails, sometimes it works fine when run manually.
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# The testsuite failures may not be limited to just aout systems.
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setup_xfail "i*86-pc-linuxaout-gnu" "hppa*-*-hpux*"
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set description "backtrace through signal handler"
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send_gdb "backtrace\n"
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gdb_expect {
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-re "#0.*read.*in main \\(.*\\) at .*main\\.c.*$gdb_prompt $" {
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pass "$description"
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}
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-re ".*$gdb_prompt $" {
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# On the alpha, we hit the infamous problem about gdb
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# being unable to get the frame pointer (mentioned in
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# gdb/README). As it is intermittent, there is no way to
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# XFAIL it which will give us an XPASS if the problem goes
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# away.
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setup_xfail "alpha*-*-osf*"
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fail "$description"
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}
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timeout {
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fail "$description (timeout)"
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}
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}
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# Set the timeout back to the value it had when we were called.
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set timeout $oldtimeout
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verbose "Timeout is now $timeout seconds" 2
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# Restart gdb in case next test expects it to be started already.
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return 0
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}
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# Find a pathname to a file that we would execute if the shell was asked
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# to run $arg using the current PATH.
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proc find_gdb { arg } {
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# If the arg directly specifies an existing executable file, then
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# simply use it.
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if [file executable $arg] then {
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return $arg
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}
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set result [which $arg]
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if [string match "/" [ string range $result 0 0 ]] then {
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return $result
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}
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# If everything fails, just return the unqualified pathname as default
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# and hope for best.
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return $arg
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}
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# Run the test with self.
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# Copy the file executable file in case this OS doesn't like to edit its own
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# text space.
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set GDB_FULLPATH [find_gdb $GDB]
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# Remove any old copy lying around.
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remote_file host delete x$tool
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gdb_start
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set file [remote_download host $GDB_FULLPATH x$tool]
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set result [test_with_self $file];
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gdb_exit;
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catch "remote_file host delete $file";
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if {$result <0} then {
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warning "Couldn't test self"
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return -1
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}
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