447 lines
15 KiB
Plaintext
447 lines
15 KiB
Plaintext
# Copyright 1997, 1999, 2002 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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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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# On HP-UX 11.0, this test is causing a process running the program
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# "attach" to be left around spinning. Until we figure out why, I am
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# commenting out the test to avoid polluting tiamat (our 11.0 nightly
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# test machine) with these processes. RT
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#
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# Setting the magic bit in the target app should work. I added a
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# "kill", and also a test for the R3 register warning. JB
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if { [istarget "hppa*-*-hpux*"] } {
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return 0
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}
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# are we on a target board
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if [is_remote target] then {
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return 0
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}
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set testfile "attach"
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set srcfile ${testfile}.c
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set srcfile2 ${testfile}2.c
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set binfile ${objdir}/${subdir}/${testfile}
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set binfile2 ${objdir}/${subdir}/${testfile}2
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set cleanupfile ${objdir}/${subdir}/${testfile}.awk
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#execute_anywhere "rm -f ${binfile} ${binfile2}"
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remote_exec build "rm -f ${binfile} ${binfile2}"
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# For debugging this test
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#
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#log_user 1
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# Clean out any old files from past runs.
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#
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remote_exec build "${cleanupfile}"
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# build the first test case
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#
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
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}
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# Because we can't attach over nfs, copy binfile to /tmp/${binfile}.${pid}
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# and replace binfile with a symbolic link
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set pid [pid]
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exec /bin/cp -f ${binfile} /tmp/attach1.${pid}
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exec rm -f ${binfile}
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set binfile /tmp/attach1.${pid}
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# exec ln -s /tmp/attach1.${pid} ${binfile}
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# Build the in-system-call test
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } {
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gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
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}
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# Because we can't attach over nfs, copy binfile2 to /tmp/${binfile2}.${pid}
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# and replace binfile2 with a symbolic link
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set pid [pid]
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exec cp -f ${binfile2} /tmp/attach2.${pid}
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exec rm -f ${binfile2}
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set binfile2 /tmp/attach2.${pid}
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# exec ln -s /tmp/attach2.${pid} ${binfile2}
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if [get_compiler_info ${binfile}] {
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return -1
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}
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proc do_attach_tests {} {
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global gdb_prompt
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global binfile
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global srcfile
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global testfile
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global objdir
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global subdir
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global timeout
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# Start the program running and then wait for a bit, to be sure
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# that it can be attached to.
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#
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set testpid [eval exec $binfile &]
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exec sleep 2
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# Verify that we cannot attach to nonsense.
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#
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send_gdb "attach abc\n"
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gdb_expect {
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-re ".*Illegal process-id: abc.*$gdb_prompt $"\
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{pass "attach to nonsense is prohibited"}
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-re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $"\
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{
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# Response expected from /proc-based systems.
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pass "attach to nonsense is prohibited"
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}
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-re "Attaching to.*$gdb_prompt $"\
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{fail "attach to nonsense is prohibited (bogus pid allowed)"}
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-re "$gdb_prompt $" {fail "attach to nonsense is prohibited"}
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timeout {fail "(timeout) attach to nonsense is prohibited"}
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}
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# Verify that we cannot attach to what appears to be a valid
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# process ID, but is a process that doesn't exist. (I don't
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# believe any process is ever assigned #0, at least on HPUX.)
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#
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send_gdb "attach 0\n"
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gdb_expect {
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-re "Attaching to.*, process 0.*No such process.*$gdb_prompt $"\
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{
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# Response expected on HP-UX 10.20 (i.e., ptrace-based).
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pass "attach to nonexistent process is prohibited"
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}
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-re "Attaching to.*, process 0 failed.*Hint.*$gdb_prompt $"\
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{
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# Response expected on HP-UX 11.0 (i.e., ttrace-based).
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pass "attach to nonexistent process is prohibited"
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}
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-re "Attaching to.*, process 0.*denied.*$gdb_prompt $"\
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{pass "attach to nonexistent process is prohibited"}
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-re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $"\
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{
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# Response expected from /proc-based systems.
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pass "attach to nonexistent process is prohibited"
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}
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-re "$gdb_prompt $" {fail "attach to nonexistent process is prohibited"}
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timeout {fail "(timeout) attach to nonexistent process is prohibited"}
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}
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# Verify that we can attach to the process by first giving its
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# executable name via the file command, and using attach with
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# the process ID.
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#
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# (Actually, the test system appears to do this automatically
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# for us. So, we must also be prepared to be asked if we want
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# to discard an existing set of symbols.)
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#
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send_gdb "file $binfile\n"
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gdb_expect {
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-re "Load new symbol table from.*y or n.*$" {
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send_gdb "y\n"
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gdb_expect {
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-re "Reading symbols from $binfile\.\.\.*done.*$gdb_prompt $"\
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{pass "(re)set file, before attach1"}
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-re "$gdb_prompt $" {fail "(re)set file, before attach1"}
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timeout {fail "(timeout) (re)set file, before attach1"}
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}
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}
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-re "Reading symbols from $binfile\.\.\.*done.*$gdb_prompt $"\
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{pass "set file, before attach1"}
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-re "$gdb_prompt $" {fail "set file, before attach1"}
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timeout {fail "(timeout) set file, before attach1"}
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}
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send_gdb "attach $testpid\n"
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gdb_expect {
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-re "Attaching to program.*`?$binfile'?, process $testpid.*main.*at .*$srcfile:.*$gdb_prompt $"\
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{pass "attach1, after setting file"}
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-re "$gdb_prompt $" {fail "attach1, after setting file"}
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timeout {fail "(timeout) attach1, after setting file"}
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}
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# Verify that we can "see" the variable "should_exit" in the
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# program, and that it is zero.
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#
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send_gdb "print should_exit\n"
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gdb_expect {
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-re ".* = 0.*$gdb_prompt $"\
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{pass "after attach1, print should_exit"}
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-re "$gdb_prompt $" {fail "after attach1, print should_exit"}
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timeout {fail "(timeout) after attach1, print should_exit"}
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}
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# Detach the process.
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#
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send_gdb "detach\n"
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gdb_expect {
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-re "Detaching from program: .*$binfile.*$gdb_prompt $"\
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{pass "attach1 detach"}
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-re "$gdb_prompt $" {fail "attach1 detach"}
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timeout {fail "(timeout) attach1 detach"}
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}
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# Wait a bit for gdb to finish detaching
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#
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exec sleep 5
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# Purge the symbols from gdb's brain. (We want to be certain
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# the next attach, which won't be preceded by a "file" command,
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# is really getting the executable file without our help.)
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#
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set old_timeout $timeout
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set timeout 15
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send_gdb "file\n"
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gdb_expect {
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-re ".*gdb internal error.*$" {
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fail "Internal error, prob. Memory corruption"
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}
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-re "No executable file now.*Discard symbol table.*y or n.*$" {
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send_gdb "y\n"
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gdb_expect {
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-re "No symbol file now.*$gdb_prompt $"\
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{pass "attach1, purging symbols after detach"}
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-re "$gdb_prompt $" {fail "attach1, purging symbols after detach"}
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timeout {fail "(timeout) attach1, purging symbols after detach"}
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}
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}
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-re "$gdb_prompt $" {fail "attach1, purging file after detach"}
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timeout {
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fail "(timeout) attach1, purging file after detach"
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}
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}
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set timeout $old_timeout
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# Verify that we can attach to the process just by giving the
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# process ID.
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#
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send_gdb "attach $testpid\n"
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gdb_expect {
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-re "Attaching to process $testpid.*Reading symbols from $binfile.*main.*at .*$gdb_prompt $"\
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{pass "attach2"}
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-re "$gdb_prompt $" {fail "attach2"}
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timeout {fail "(timeout) attach2"}
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}
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# Verify that we can modify the variable "should_exit" in the
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# program.
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#
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send_gdb "set should_exit=1\n"
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gdb_expect {
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-re "$gdb_prompt $" {pass "after attach2, set should_exit"}
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timeout {fail "(timeout) after attach2, set should_exit"}
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}
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# Verify that the modification really happened.
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#
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send_gdb "tbreak 19\n"
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gdb_expect {
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-re "Breakpoint .*at.*$srcfile, line 19.*$gdb_prompt $"\
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{pass "after attach2, set tbreak postloop"}
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-re "$gdb_prompt $" {fail "after attach2, set tbreak postloop"}
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timeout {fail "(timeout) after attach2, set tbreak postloop"}
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}
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send_gdb "continue\n"
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gdb_expect {
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-re "main.*at.*$srcfile:19.*$gdb_prompt $"\
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{pass "after attach2, reach tbreak postloop"}
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-re "$gdb_prompt $" {fail "after attach2, reach tbreak postloop"}
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timeout {fail "(timeout) after attach2, reach tbreak postloop"}
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}
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# Allow the test process to exit, to cleanup after ourselves.
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#
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send_gdb "continue\n"
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gdb_expect {
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-re "Program exited normally.*$gdb_prompt $"\
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{pass "after attach2, exit"}
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-re "$gdb_prompt $" {fail "after attach2, exit"}
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timeout {fail "(timeout) after attach2, exit"}
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}
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# Make sure we don't leave a process around to confuse
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# the next test run (and prevent the compile by keeping
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# the text file busy), in case the "set should_exit" didn't
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# work.
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#
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remote_exec build "kill -9 ${testpid}"
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# Start the program running and then wait for a bit, to be sure
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# that it can be attached to.
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#
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set testpid [eval exec $binfile &]
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exec sleep 2
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# Verify that we can attach to the process, and find its a.out
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# when we're cd'd to some directory that doesn't contain the
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# a.out. (We use the source path set by the "dir" command.)
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#
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send_gdb "dir ${objdir}/${subdir}\n"
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gdb_expect {
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-re ".*Source directories searched: .*$gdb_prompt $"\
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{pass "set source path"}
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-re "$gdb_prompt $" {fail "set source path"}
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timeout {fail "(timeout) set source path"}
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}
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send_gdb "cd /tmp\n"
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gdb_expect {
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-re ".*Working directory /tmp.*$gdb_prompt $"\
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{pass "cd away from process' a.out"}
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-re "$gdb_prompt $" {fail "cd away from process' a.out"}
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timeout {fail "(timeout) cd away from process' a.out"}
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}
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# Explicitly flush out any knowledge of the previous attachment.
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send_gdb "symbol\n"
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gdb_expect {
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-re ".*Discard symbol table from.*y or n. $"\
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{send_gdb "y\n"
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gdb_expect {
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-re ".*No symbol file now.*$gdb_prompt $"\
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{pass "before attach3, flush symbols"}
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-re "$gdb_prompt $" {fail "before attach3, flush symbols"}
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timeout {fail "(timeout) before attach3, flush symbols"}
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}
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}
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-re ".*No symbol file now.*$gdb_prompt $"\
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{pass "before attach3, flush symbols"}
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-re "$gdb_prompt $" {fail "before attach3, flush symbols"}
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timeout {fail "(timeout) before attach3, flush symbols"}
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}
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send_gdb "exec\n"
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gdb_expect {
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-re ".*No executable file now.*$gdb_prompt $"\
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{pass "before attach3, flush exec"}
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-re "$gdb_prompt $" {fail "before attach3, flush exec"}
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timeout {fail "(timeout) before attach3, flush exec"}
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}
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send_gdb "attach $testpid\n"
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gdb_expect {
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-re "Attaching to process $testpid.*Reading symbols from $binfile.*main.*at .*$gdb_prompt $"\
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{pass "attach when process' a.out not in cwd"}
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-re "$gdb_prompt $" {fail "attach when process' a.out not in cwd"}
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timeout {fail "(timeout) attach when process' a.out not in cwd"}
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}
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send_gdb "kill\n"
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gdb_expect {
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-re ".*Kill the program being debugged.*y or n. $"\
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{send_gdb "y\n"
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gdb_expect {
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-re "$gdb_prompt $" {pass "after attach3, exit"}
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timeout {fail "(timeout) after attach3, exit"}
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}
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}
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-re "$gdb_prompt $" {fail "after attach3, exit"}
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timeout {fail "(timeout) after attach3, exit"}
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}
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}
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proc do_call_attach_tests {} {
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global gdb_prompt
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global binfile2
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# Start the program running and then wait for a bit, to be sure
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# that it can be attached to.
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#
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set testpid [eval exec $binfile2 &]
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exec sleep 2
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# Attach
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#
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gdb_test "file $binfile2" ".*" "force switch to gdb64, if necessary"
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send_gdb "attach $testpid\n"
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gdb_expect {
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-re ".*warning: reading register.*I.*O error.*$gdb_prompt $" {
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fail "attach call, read register 3 error"
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}
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-re "Attaching to.*process $testpid.*libc.*$gdb_prompt $" {
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pass "attach call"
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}
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-re "$gdb_prompt $" {fail "attach call"}
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timeout {fail "(timeout) attach call"}
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}
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# See if other registers are problems
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#
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send_gdb "i r r3\n"
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gdb_expect {
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-re ".*warning: reading register.*$gdb_prompt $" {
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pass "CHFts23490: known bug"
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}
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-re ".*r3.*$gdb_prompt $" {
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pass "Bug fixed, Yayyy!"
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}
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timeout { fail "timeout on info reg" }
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}
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# Get rid of the process
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#
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gdb_test "p should_exit = 1" ".*"
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gdb_test "c" ".*Program exited normally.*"
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# Be paranoid
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#
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remote_exec build "kill -9 ${testpid}"
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}
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# Start with a fresh gdb
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#
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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# This is a test of gdb's ability to attach to a running process.
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#
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do_attach_tests
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# Test attaching when the target is inside a system call
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#
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gdb_exit
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gdb_start
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# this seems not necessary. - guo
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#
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# # Since we have moved the executable to /tmp, it will be hard for gdb
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# # to find the object file/executable to read the symbols. This is
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# # a known limitation. We try and get the name of the executable the
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# # process is running from a variety of methods, but none is foolproof.
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# # Using "dir" will get us the symbols.
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#
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# gdb_test "dir ./gdb.base" ".*" "set up directory before attach"
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gdb_reinitialize_dir $srcdir/$subdir
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do_call_attach_tests
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# Cleanup the files placed in /tmp and the symlinks
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remote_exec build "rm -f ${binfile} ${binfile2} /tmp/attach1.${pid} /tmp/attach2.${pid}"
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return 0
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