502 lines
16 KiB
Text
502 lines
16 KiB
Text
# Copyright 1988, 1990-1992, 1994, 1997, 1999-2000, 2002-2012 Free
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# 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 3 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, see <http://www.gnu.org/licenses/>.
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# This file was written by Rob Savoye. (rob@cygnus.com)
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# are we on a target board
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if { [is_remote target] || ![isnative] } then {
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return
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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 $srcdir/..
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set unlikely_line 0
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for {set count 0} {$count < 32} {incr count} {
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# NOTE: carlton/2002-12-11: The "initial brace" and
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# "current_directory initialization" possibilities happen to
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# me with GCC 3.1 on i686-pc-linux-gnu when I compile with
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# optimization.
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gdb_test_multiple "list" "list" {
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-re ".*context = data.*$gdb_prompt $" {
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set description "step over context initialization"
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set command "step"
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}
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-re ".*argc = context->argc.*$gdb_prompt $" {
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set description "step over argc initialization"
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set command "step"
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}
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-re ".*argv = context->argv.*$gdb_prompt $" {
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set description "step over argv initialization"
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set command "step"
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}
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-re ".*quiet = 0.*$gdb_prompt $" {
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set description "step over quiet initialization"
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set command "step"
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}
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-re ".*batch = 0.*$gdb_prompt $" {
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set description "step over batch initialization"
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set command "step"
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}
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-re ".*symarg = NULL.*$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 $" {
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set description "step over execarg initialization"
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set command "step"
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}
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-re ".*pidarg = NULL.*$gdb_prompt $" {
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set description "step over pidarg initialization"
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set command "step"
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}
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-re ".*corearg = NULL.*$gdb_prompt $" {
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set description "step over corearg initialization"
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set command "step"
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}
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-re ".*pid_or_core_arg = NULL.*$gdb_prompt $" {
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set description "step over pid_or_core_arg initialization"
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set command "step"
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}
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-re ".*cdarg = NULL.*$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 $" {
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set description "step over ttyarg initialization"
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set command "step"
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}
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-re ".*pre_stat_chain = make_command_stats_cleanup.*$gdb_prompt $" {
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set description "next over make_command_stats_cleanup and everything it calls"
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set command "next"
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}
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-re ".*START_PROGRESS.*$gdb_prompt $" {
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# Note: ezannoni/2004/02/17: This check should be
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# removed, since as of today that source line is not
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# in gdb anymore.
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set description "next over START_PROGRESS and everything it calls"
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set command "next"
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}
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-re ".*mac_init.*$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 $" {
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# gdb 6.2.X is the last gdb which called init_malloc
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set description "next over init_malloc and everything it calls"
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set command "next"
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}
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-re ".*lim_at_start.*$gdb_prompt $" {
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set description "next over lim_at_start initialization"
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set command "next"
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}
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-re ".*count . 0x3.*$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 $" {
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set description "next over conditional stack alignment alloca"
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set command "next"
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}
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-re ".*cmdsize = 1.*$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 $" {
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return
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}
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-re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
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set description "next over setlocale LC_MESSAGES"
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set command "next"
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}
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-re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
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set description "next over setlocale LC_CTYPE"
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set command "next"
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}
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-re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
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set description "next over bindtextdomain"
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set command "next"
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}
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-re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
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set description "next over textdomain PACKAGE"
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set command "next"
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}
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-re "\[0-9\]+\[\t \]+\{\r\n$gdb_prompt $" {
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set description "step over initial brace"
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set command "step"
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}
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-re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
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set description "step over current_directory initialization"
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set command "step"
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}
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-re ".*gdb_sysroot = .*$gdb_prompt $" {
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# NOTE: carlton/2003-01-15: More optimization reordering,
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# observed on GCC 3.1.
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set description "step over gdb_sysroot initialization"
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set command "step"
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}
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-re ".*ndir = 0.*$gdb_prompt $" {
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set description "step over ndir initialization"
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set command "step"
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}
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-re ".*instream = stdin.*$gdb_prompt $" {
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set description "step over instream initialization"
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set command "step"
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}
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-re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf.*$gdb_prompt $" {
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set description "next over getcwd"
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set command "next"
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}
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-re ".*gdb_program_name = xstrdup.*$gdb_prompt $" {
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set description "next over xstrdup"
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set command "next"
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}
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-re ".*quit_flag = 0.*$gdb_prompt $" {
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set description "step over quit_flag initialization"
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set command "step"
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}
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-re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
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set description "step over gdb_stdout initialization"
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set command "step"
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}
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-re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
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set description "step over gdb_stderr initialization"
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set command "step"
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}
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-re ".*main.c.*No such file or directory.*$gdb_prompt $" {
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setup_xfail "rs6000-*-aix3*"
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fail "must be able to list source lines"
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return
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}
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-re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
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if { $unlikely_line == 0 } {
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# This is a GCC optimization bug; a constant has been
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# associated with the wrong line number.
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setup_xfail "*-*-*" gcc/26475
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fail "$description (unlikely line from gcc)"
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set unlikely_line 1
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}
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set description "next over xstrdup"
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set command "next"
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}
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-re ".*$gdb_prompt $" {
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fail "unknown source line after $description"
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return
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}
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default {
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fail "unknown source line near main"
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return
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}
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}
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gdb_test_multiple "$command" "$description" {
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-re ".*No such file or directory.\r\n$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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}
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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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global gdb_file_cmd_debug_info
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set gdb_file_cmd_debug_info "unset"
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set result [gdb_load $executable]
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set timeout $oldtimeout
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verbose "Timeout is now $timeout seconds" 2
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if { $result != 0 } then {
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return -1
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}
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if { $gdb_file_cmd_debug_info != "debug" } then {
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untested "No debug information, skipping testcase."
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return -1
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}
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# disassemble yourself
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gdb_test "x/10i main" \
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"x/10i.*main.*main.$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 captured_main" \
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"Breakpoint.*at.* file.*, line.*" \
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"breakpoint in captured_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_no_output "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 captured_main"
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gdb_test_multiple "run -nw" "$description" {
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-re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
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pass "$description"
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}
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-re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$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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}
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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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gdb_test_multiple "print version" "printed version" {
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-re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
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pass "printed version as string"
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}
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-re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
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pass "printed version as pointer"
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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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}
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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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# NOTE drow/2003-06-22: However, if we step back to the preceding two
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# lines, just keep stepping until we enter.
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set stepped_back 0
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setup_xfail "alpha-*-*" "mips-*-*"
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set description "step into xmalloc call"
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gdb_test_multiple "step" "$description" {
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-re "ncmd = 0;.*$gdb_prompt $" {
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set stepped_back 1
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send_gdb "step\n"
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exp_continue
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}
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-re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
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set stepped_back 1
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send_gdb "step\n"
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exp_continue
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}
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-re "dirsize = 1;.*$gdb_prompt $" {
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set stepped_back 1
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send_gdb "step\n"
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exp_continue
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}
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-re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
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if { $stepped_back == 1 } {
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send_gdb "step\n"
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exp_continue
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} else {
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fail "$description"
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}
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}
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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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}
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# start the "xgdb" process
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gdb_test_multiple "continue" "xgdb is at prompt" {
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-re "GNU gdb \[0-9\.\]*.*Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*License GPLv3\\+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.*This is free software: you are free to change and redistribute it.*There is NO WARRANTY, to the extent permitted by law. Type \"show copying\".*and \"show warranty\" for details.*This GDB was configured as .*$gdb_prompt $" {
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pass "xgdb is at prompt"
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}
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}
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# set xgdb prompt so we can tell which is which
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gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" {
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-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" {
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pass "Set xgdb prompt"
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}
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}
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# kill the xgdb process
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set description "send ^C to child process"
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send_gdb "\003"
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gdb_expect {
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-re "Program received signal SIGINT.*$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 "$description (timeout)"
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}
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}
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set description "send SIGINT signal to child process"
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gdb_test "signal SIGINT" \
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"Continuing with signal SIGINT.*" \
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"$description"
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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"
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set description "backtrace through signal handler"
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gdb_test_multiple "backtrace" "$description" {
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-re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$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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}
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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 {
|
|
warning "Couldn't test self"
|
|
return -1
|
|
}
|