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# Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002, 2003, 2004,
# 2005, 2006, 2007, 2008, 2009, 2010 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 3 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, see <http://www.gnu.org/licenses/>.
# This file was written by Rob Savoye. (rob@cygnus.com)
if $tracelevel then {
strace $tracelevel
}
# are we on a target board
if { [is_remote target] || ![isnative] } then {
return
}
# Not all of the lines of code near the start of main are executed for
# every machine. Also, optimization may reorder some of the lines.
# So all we do is try to step or next over everything until we get
# to a line that we know is always executed.
proc do_steps_and_nexts {} {
global gdb_prompt
global srcdir
gdb_reinitialize_dir $srcdir/..
set unlikely_line 0
for {set count 0} {$count < 32} {incr count} {
# NOTE: carlton/2002-12-11: The "initial brace" and
# "current_directory initialization" possibilities happen to
# me with GCC 3.1 on i686-pc-linux-gnu when I compile with
# optimization.
gdb_test_multiple "list" "list" {
-re ".*context = data.*$gdb_prompt $" {
set description "step over context initialization"
set command "step"
}
-re ".*argc = context->argc.*$gdb_prompt $" {
set description "step over argc initialization"
set command "step"
}
-re ".*argv = context->argv.*$gdb_prompt $" {
set description "step over argv initialization"
set command "step"
}
-re ".*quiet = 0.*$gdb_prompt $" {
set description "step over quiet initialization"
set command "step"
}
-re ".*batch = 0.*$gdb_prompt $" {
set description "step over batch initialization"
set command "step"
}
-re ".*symarg = NULL.*$gdb_prompt $" {
set description "step over symarg initialization"
set command "step"
}
-re ".*execarg = NULL.*$gdb_prompt $" {
set description "step over execarg initialization"
set command "step"
}
-re ".*pidarg = NULL.*$gdb_prompt $" {
set description "step over pidarg initialization"
set command "step"
}
-re ".*corearg = NULL.*$gdb_prompt $" {
set description "step over corearg initialization"
set command "step"
}
-re ".*pid_or_core_arg = NULL.*$gdb_prompt $" {
set description "step over pid_or_core_arg initialization"
set command "step"
}
-re ".*cdarg = NULL.*$gdb_prompt $" {
set description "step over cdarg initialization"
set command "step"
}
-re ".*ttyarg = NULL.*$gdb_prompt $" {
set description "step over ttyarg initialization"
set command "step"
}
-re ".*pre_stat_chain = make_command_stats_cleanup.*$gdb_prompt $" {
set description "next over make_command_stats_cleanup and everything it calls"
set command "next"
}
-re ".*START_PROGRESS.*$gdb_prompt $" {
# Note: ezannoni/2004/02/17: This check should be
# removed, since as of today that source line is not
# in gdb anymore.
set description "next over START_PROGRESS and everything it calls"
set command "next"
}
-re ".*mac_init.*$gdb_prompt $" {
set description "next over mac_init and everything it calls"
set command "next"
}
-re ".*init_malloc.*$gdb_prompt $" {
# gdb 6.2.X is the last gdb which called init_malloc
set description "next over init_malloc and everything it calls"
set command "next"
}
-re ".*lim_at_start.*$gdb_prompt $" {
set description "next over lim_at_start initialization"
set command "next"
}
-re ".*count . 0x3.*$gdb_prompt $" {
set description "next over conditional stack alignment code 1"
set command "next"
}
-re ".*if .i != 0.*$gdb_prompt $" {
set description "next over conditional stack alignment code 2"
set command "next"
}
-re ".*alloca .i - 4.*$gdb_prompt $" {
set description "next over conditional stack alignment alloca"
set command "next"
}
-re ".*cmdsize = 1.*$gdb_prompt $" {
set description "step over cmdsize initialization"
set command "next"
}
-re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
set description "next over cmdarg initialization via xmalloc"
set command "next"
}
-re ".*ncmd = 0.*$gdb_prompt $" {
set description "next over ncmd initialization"
set command "next"
}
-re ".*dirsize = 1.*$gdb_prompt $" {
set description "next over dirsize initialization"
set command "next"
}
-re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
return
}
-re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
set description "next over setlocale LC_MESSAGES"
set command "next"
}
-re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
set description "next over setlocale LC_CTYPE"
set command "next"
}
-re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
set description "next over bindtextdomain"
set command "next"
}
-re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
set description "next over textdomain PACKAGE"
set command "next"
}
-re "\[0-9\]+\[\t \]+\{\r\n$gdb_prompt $" {
set description "step over initial brace"
set command "step"
}
-re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
set description "step over current_directory initialization"
set command "step"
}
-re ".*gdb_sysroot = .*$gdb_prompt $" {
# NOTE: carlton/2003-01-15: More optimization reordering,
# observed on GCC 3.1.
set description "step over gdb_sysroot initialization"
set command "step"
}
-re ".*ndir = 0.*$gdb_prompt $" {
set description "step over ndir initialization"
set command "step"
}
-re ".*instream = stdin.*$gdb_prompt $" {
set description "step over instream initialization"
set command "step"
}
-re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf.*$gdb_prompt $" {
set description "next over getcwd"
set command "next"
}
-re ".*gdb_program_name = xstrdup.*$gdb_prompt $" {
set description "next over xstrdup"
set command "next"
}
-re ".*quit_flag = 0.*$gdb_prompt $" {
set description "step over quit_flag initialization"
set command "step"
}
-re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
set description "step over gdb_stdout initialization"
set command "step"
}
-re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
set description "step over gdb_stderr initialization"
set command "step"
}
-re ".*main.c.*No such file or directory.*$gdb_prompt $" {
setup_xfail "rs6000-*-aix3*"
fail "must be able to list source lines"
return
}
-re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
if { $unlikely_line == 0 } {
# This is a GCC optimization bug; a constant has been
# associated with the wrong line number.
setup_xfail "*-*-*" gcc/26475
fail "$description (unlikely line from gcc)"
set unlikely_line 1
}
set description "next over xstrdup"
set command "next"
}
-re ".*$gdb_prompt $" {
fail "unknown source line after $description"
return
}
default {
fail "unknown source line near main"
return
}
}
gdb_test_multiple "$command" "$description" {
-re ".*No such file or directory.\r\n$gdb_prompt $" {
fail "$description (no source available)"
}
-re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
fail "$description (no source available)"
}
-re ".*$gdb_prompt $" {
pass "$description"
}
}
}
}
proc test_with_self { executable } {
global gdb_prompt
global tool
global det_file
global decimal
global timeout
# load yourself into the debugger
# This can take a relatively long time, particularly for testing where
# the executable is being accessed over a network, or where gdb does not
# support partial symbols for a particular target and has to load the
# entire symbol table. Set the timeout to 10 minutes, which should be
# adequate for most environments (it *has* timed out with 5 min on a
# SPARCstation SLC under moderate load, so this isn't unreasonable).
# After gdb is started, set the timeout to 30 seconds for the duration
# of this test, and then back to the original value.
set oldtimeout $timeout
set timeout 600
verbose "Timeout is now $timeout seconds" 2
global gdb_file_cmd_debug_info
set gdb_file_cmd_debug_info "unset"
set result [gdb_load $executable]
set timeout $oldtimeout
verbose "Timeout is now $timeout seconds" 2
if { $result != 0 } then {
return -1
}
if { $gdb_file_cmd_debug_info != "debug" } then {
untested "No debug information, skipping testcase."
return -1
}
# disassemble yourself
gdb_test "x/10i main" \
"x/10i.*main.*main.$decimal.*main.$decimal.*" \
"Disassemble main"
# Set a breakpoint at main
gdb_test "break captured_main" \
"Breakpoint.*at.* file.*, line.*" \
"breakpoint in captured_main"
# We'll need this when we send a ^C to GDB. Need to do it before we
# run the program and gdb starts saving and restoring tty states.
# On Ultrix, we don't need it and it is really slow (because shell_escape
# doesn't use vfork).
if ![istarget "*-*-ultrix*"] then {
gdb_test "shell stty intr '^C'" ".*" \
"set interrupt character in test_with_self"
}
# FIXME: If we put this after the run to main, the first list
# command doesn't print the same line as the current line where
# gdb is stopped.
gdb_test_no_output "set listsize 1" "set listsize to 1"
# run yourself
# It may take a very long time for the inferior gdb to start (lynx),
# so we bump it back up for the duration of this command.
set timeout 600
set description "run until breakpoint at captured_main"
gdb_test_multiple "run -nw" "$description" {
-re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
pass "$description"
}
-re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
xfail "$description (line numbers scrambled?)"
}
-re "vfork: No more processes.*$gdb_prompt $" {
fail "$description (out of virtual memory)"
set timeout $oldtimeout
verbose "Timeout is now $timeout seconds" 2
return -1
}
-re ".*$gdb_prompt $" {
fail "$description"
set timeout $oldtimeout
verbose "Timeout is now $timeout seconds" 2
return -1
}
}
set timeout $oldtimeout
verbose "Timeout is now $timeout seconds" 2
# do we have a version number ?
gdb_test_multiple "print version" "printed version" {
-re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
pass "printed version as string"
}
-re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
pass "printed version as pointer"
}
-re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
pass "printed version with cast"
}
}
do_steps_and_nexts
gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
# do_steps_and_nexts left us ready to execute an xmalloc call,
# so give that a try.
# If we don't actually enter the xmalloc call when we give a
# step command that seems like a genuine bug. It seems to happen
# on most RISC processors.
# NOTE drow/2003-06-22: However, if we step back to the preceding two
# lines, just keep stepping until we enter.
set stepped_back 0
setup_xfail "alpha-*-*" "mips-*-*"
set description "step into xmalloc call"
gdb_test_multiple "step" "$description" {
-re "ncmd = 0;.*$gdb_prompt $" {
set stepped_back 1
send_gdb "step\n"
exp_continue
}
-re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
set stepped_back 1
send_gdb "step\n"
exp_continue
}
-re "dirsize = 1;.*$gdb_prompt $" {
set stepped_back 1
send_gdb "step\n"
exp_continue
}
-re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
if { $stepped_back == 1 } {
send_gdb "step\n"
exp_continue
} else {
fail "$description"
}
}
-re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
pass "$description"
}
-re ".*No such file or directory.\r\n$gdb_prompt $" {
pass "$description (no source available)"
}
-re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
pass "$description (no source available)"
}
}
# start the "xgdb" process
gdb_test_multiple "continue" "xgdb is at prompt" {
-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 $" {
pass "xgdb is at prompt"
}
}
# set xgdb prompt so we can tell which is which
gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" {
-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" {
pass "Set xgdb prompt"
}
}
# kill the xgdb process
set description "send ^C to child process"
send_gdb "\003"
gdb_expect {
-re "Program received signal SIGINT.*$gdb_prompt $" {
pass "$description"
}
-re ".*$gdb_prompt $" {
fail "$description"
}
timeout {
fail "$description (timeout)"
}
}
set description "send SIGINT signal to child process"
gdb_test "signal SIGINT" \
"Continuing with signal SIGINT.*" \
"$description"
# get a stack trace
#
# This fails on some linux systems for unknown reasons. On the
# systems where it fails, sometimes it works fine when run manually.
# The testsuite failures may not be limited to just aout systems.
setup_xfail "i*86-pc-linuxaout-gnu"
set description "backtrace through signal handler"
gdb_test_multiple "backtrace" "$description" {
-re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
pass "$description"
}
-re ".*$gdb_prompt $" {
# On the alpha, we hit the infamous problem about gdb
# being unable to get the frame pointer (mentioned in
# gdb/README). As it is intermittent, there is no way to
# XFAIL it which will give us an XPASS if the problem goes
# away.
setup_xfail "alpha*-*-osf*"
fail "$description"
}
}
# Set the timeout back to the value it had when we were called.
set timeout $oldtimeout
verbose "Timeout is now $timeout seconds" 2
# Restart gdb in case next test expects it to be started already.
return 0
}
# Find a pathname to a file that we would execute if the shell was asked
# to run $arg using the current PATH.
proc find_gdb { arg } {
# If the arg directly specifies an existing executable file, then
# simply use it.
if [file executable $arg] then {
return $arg
}
set result [which $arg]
if [string match "/" [ string range $result 0 0 ]] then {
return $result
}
# If everything fails, just return the unqualified pathname as default
# and hope for best.
return $arg
}
# Run the test with self.
# Copy the file executable file in case this OS doesn't like to edit its own
# text space.
set GDB_FULLPATH [find_gdb $GDB]
# Remove any old copy lying around.
remote_file host delete x$tool
gdb_start
set file [remote_download host $GDB_FULLPATH x$tool]
set result [test_with_self $file];
gdb_exit;
catch "remote_file host delete $file";
if {$result <0} then {
warning "Couldn't test self"
return -1
}
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