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3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
649 lines
21 KiB
Plaintext
649 lines
21 KiB
Plaintext
# Copyright 1997-2021 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 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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if {![can_spawn_for_attach]} {
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return 0
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}
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standard_testfile attach.c attach2.c attach3.c
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set binfile2 ${binfile}2
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set binfile3 ${binfile}3
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set escapedbinfile [string_to_regexp $binfile]
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#execute_anywhere "rm -f ${binfile} ${binfile2}"
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remote_exec build "rm -f ${binfile} ${binfile2} ${binfile3}"
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# For debugging this test
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#
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#log_user 1
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# build the first test case
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#
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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untested "failed to compile"
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return -1
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}
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# Build the in-system-call test
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } {
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untested "failed to compile in-system-call test"
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return -1
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}
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# Build the third file, used to check attach when the exec-file has changed.
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile3}" "${binfile3}" executable {debug}] != "" } {
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untested "failed to compile attach exec-file changed test"
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return -1
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}
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if [get_compiler_info] {
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return -1
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}
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# This is a test of the error cases for gdb's ability to attach to a
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# running process.
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proc_with_prefix do_attach_failure_tests {} {
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global gdb_prompt
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global binfile
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global escapedbinfile
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global srcfile
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clean_restart $binfile
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# Figure out a regular expression that will match the sysroot,
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# noting that the default sysroot is "target:", and also noting
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# that GDB will strip "target:" from the start of filenames when
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# operating on the local filesystem. However the default sysroot
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# can be set via configure option --with-sysroot, which can be "/".
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# If $binfile is a absolute path, so pattern
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# "$sysroot$escapedbinfile" below is wrong. Use [^\r\n]* to make
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# $sysroot simple.
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set sysroot "\[^\r\n\]*"
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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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set test_spawn_id [spawn_wait_for_attach $binfile]
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set testpid [spawn_id_get_pid $test_spawn_id]
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# Verify that we cannot attach to nonsense.
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set test "attach to nonsense is prohibited"
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gdb_test_multiple "attach abc" "$test" {
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-re "Illegal process-id: abc\\.\r\n$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {
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# Response expected from /proc-based systems.
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pass "$test"
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}
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-re "Can't attach to process..*$gdb_prompt $" {
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# Response expected on Cygwin
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pass "$test"
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}
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-re "Attaching to.*$gdb_prompt $" {
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fail "$test (bogus pid allowed)"
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}
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}
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# Verify that we cannot attach to nonsense even if its initial part is
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# a valid PID.
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set test "attach to digits-starting nonsense is prohibited"
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gdb_test_multiple "attach ${testpid}x" "$test" {
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-re "Illegal process-id: ${testpid}x\\.\r\n$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {
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# Response expected from /proc-based systems.
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pass "$test"
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}
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-re "Can't attach to process..*$gdb_prompt $" {
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# Response expected on Cygwin
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pass "$test"
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}
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-re "Attaching to.*$gdb_prompt $" {
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fail "$test (bogus pid allowed)"
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}
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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. Traditionally,
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# most systems didn't have a process with ID 0, so we take that as
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# the default. However, there are a few exceptions.
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set boguspid 0
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if { [istarget "*-*-*bsd*"] } {
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# In FreeBSD 5.0, PID 0 is used for "swapper". Use -1 instead
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# (which should have the desired effect on any version of
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# FreeBSD, and probably other *BSD's too).
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set boguspid -1
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}
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set test "attach to nonexistent process is prohibited"
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gdb_test_multiple "attach $boguspid" "$test" {
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-re "Attaching to.*, process $boguspid.*No such process.*$gdb_prompt $" {
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# Response expected on ptrace-based systems (i.e. HP-UX 10.20).
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pass "$test"
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}
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-re "Attaching to.*, process $boguspid failed.*Hint.*$gdb_prompt $" {
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# Response expected on ttrace-based systems (i.e. HP-UX 11.0).
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pass "$test"
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}
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-re "Attaching to.*, process $boguspid.*denied.*$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to.*, process $boguspid.*not permitted.*$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" {
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# Response expected from /proc-based systems.
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pass "$test"
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}
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-re "Can't attach to process..*$gdb_prompt $" {
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# Response expected on Cygwin
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pass "$test"
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}
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-re "Attaching to.*, process $boguspid.*failed.*$gdb_prompt $" {
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# Response expected on the extended-remote target.
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pass "$test"
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}
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}
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# Verify that we can't double attach to the process.
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set test "first attach"
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gdb_test_multiple "attach $testpid" "$test" {
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-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*main.*at .*$srcfile:.*$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {
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# Response expected on Cygwin.
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pass "$test"
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}
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}
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gdb_test "add-inferior" "Added inferior 2.*" "add empty inferior 2"
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gdb_test "inferior 2" "Switching to inferior 2.*" "switch to inferior 2"
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set test "fail to attach again"
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gdb_test_multiple "attach $testpid" "$test" {
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-re "Attaching to process $testpid.*warning: process .* is already traced by process .*$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to process .* failed.*$gdb_prompt $" {
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# Response expected when using gdbserver.
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pass "$test"
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}
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}
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gdb_test "inferior 1" "Switching to inferior 1.*" "switch to inferior 1"
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set test "exit after attach failures"
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gdb_test "kill" \
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"" \
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"$test" \
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"Kill the program being debugged.*y or n. $" \
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"y"
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# Another "don't leave a process around"
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kill_wait_spawned_process $test_spawn_id
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}
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# This is a test of gdb's ability to attach to a running process.
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proc_with_prefix do_attach_tests {} {
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global gdb_prompt
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global binfile
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global escapedbinfile
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global srcfile
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global timeout
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global decimal
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clean_restart $binfile
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# Figure out a regular expression that will match the sysroot,
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# noting that the default sysroot is "target:", and also noting
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# that GDB will strip "target:" from the start of filenames when
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# operating on the local filesystem. However the default sysroot
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# can be set via configure option --with-sysroot, which can be "/".
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# If $binfile is a absolute path, so pattern
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# "$sysroot$escapedbinfile" below is wrong. Use [^\r\n]* to make
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# $sysroot simple.
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set sysroot "\[^\r\n\]*"
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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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set test_spawn_id [spawn_wait_for_attach $binfile]
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set testpid [spawn_id_get_pid $test_spawn_id]
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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 the
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# process ID.
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# (Actually, the test system appears to do this automatically for
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# us. So, we must also be prepared to be asked if we want to
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# discard an existing set of symbols.)
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set test "set file, before attach1"
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gdb_test_multiple "file $binfile" "$test" {
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-re "Load new symbol table from.*y or n. $" {
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gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*" \
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"$test (re-read)"
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}
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-re "Reading symbols from $escapedbinfile\.\.\.*$gdb_prompt $" {
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pass "$test"
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}
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}
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set test "attach1, after setting file"
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gdb_test_multiple "attach $testpid" "$test" {
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-re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*main.*at .*$srcfile:.*$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {
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# Response expected on Cygwin
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pass "$test"
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}
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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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gdb_test "print should_exit" " = 0" "after attach1, print should_exit"
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# Detach the process.
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gdb_test "detach" \
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"Detaching from program: .*$escapedbinfile, process $testpid\r\n\\\[Inferior $decimal \\(.*\\) detached\\\]" \
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"attach1 detach"
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# Wait a bit for gdb to finish detaching
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exec sleep 5
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# Purge the symbols from gdb's brain. (We want to be certain the
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# next attach, which won't be preceded by a "file" command, is
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# really getting the executable file without our help.)
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set old_timeout $timeout
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set timeout 15
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set test "attach1, purging symbols after detach"
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gdb_test_multiple "file" "$test" {
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-re "No executable file now.*Discard symbol table.*y or n. $" {
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gdb_test "y" "No symbol file now." "$test"
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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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set test "attach2, with no file"
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set found_exec_file 0
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gdb_test_multiple "attach $testpid" "$test" {
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-re "Attaching to process $testpid.*Load new symbol table from \"$sysroot$escapedbinfile\.exe\".*y or n. $" {
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# On Cygwin, the DLL's symbol tables are loaded prior to the
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# executable's symbol table. This in turn always results in
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# asking the user for actually loading the symbol table of the
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# executable.
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gdb_test "y" "Reading symbols from $sysroot$escapedbinfile\.\.\.*" \
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"$test (reset file)"
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set found_exec_file 1
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}
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-re "Attaching to process $testpid.*Reading symbols from $sysroot$escapedbinfile.*main.*at .*$gdb_prompt $" {
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pass "$test"
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set found_exec_file 1
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}
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}
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if {$found_exec_file == 0} {
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set test "load file manually, after attach2"
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gdb_test_multiple "file $binfile" "$test" {
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-re "A program is being debugged already..*Are you sure you want to change the file.*y or n. $" {
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gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*" \
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"$test (re-read)"
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}
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-re "Reading symbols from $escapedbinfile\.\.\.*$gdb_prompt $" {
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pass "$test"
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}
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}
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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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gdb_test_no_output "set should_exit=1" "after attach2, set should_exit"
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# Verify that the modification really happened.
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gdb_breakpoint [gdb_get_line_number "postloop"] temporary
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gdb_continue_to_breakpoint "postloop" ".* postloop .*"
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# Allow the test process to exit, to cleanup after ourselves.
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gdb_continue_to_end "after attach2, exit"
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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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kill_wait_spawned_process $test_spawn_id
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set test_spawn_id [spawn_wait_for_attach $binfile]
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set testpid [spawn_id_get_pid $test_spawn_id]
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# Verify that we can attach to the process, and find its a.out
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# when we're cd'd to some directory that doesn't contain the
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# a.out. (We use the source path set by the "dir" command.)
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gdb_test "dir [standard_output_file {}]" "Source directories searched: .*" \
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"set source path"
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gdb_test "cd /tmp" "Working directory /tmp." \
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"cd away from process working directory"
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# Explicitly flush out any knowledge of the previous attachment.
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set test "before attach3, flush symbols"
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gdb_test_multiple "symbol-file" "$test" {
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-re "Discard symbol table from.*y or n. $" {
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gdb_test "y" "No symbol file now." \
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"$test"
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}
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-re "No symbol file now.*$gdb_prompt $" {
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pass "$test"
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}
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}
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gdb_test "exec" "No executable file now." \
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"before attach3, flush exec"
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gdb_test "attach $testpid" \
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"Attaching to process $testpid.*Reading symbols from $sysroot$escapedbinfile.*main.*at .*" \
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"attach when process' a.out not in cwd"
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set test "after attach3, exit"
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gdb_test "kill" \
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"" \
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"$test" \
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"Kill the program being debugged.*y or n. $" \
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"y"
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# Another "don't leave a process around"
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kill_wait_spawned_process $test_spawn_id
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}
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# Test attaching when the target is inside a system call.
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proc_with_prefix do_call_attach_tests {} {
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global gdb_prompt
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global binfile2
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clean_restart
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set test_spawn_id [spawn_wait_for_attach $binfile2]
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set testpid [spawn_id_get_pid $test_spawn_id]
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# Attach
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gdb_test "file $binfile2" ".*" "load file"
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set test "attach call"
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gdb_test_multiple "attach $testpid" "$test" {
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-re "warning: reading register.*I.*O error.*$gdb_prompt $" {
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fail "$test (read register error)"
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}
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-re "Attaching to.*process $testpid.*libc.*$gdb_prompt $" {
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pass "$test"
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}
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-re "Attaching to.*process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" {
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pass "$test"
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}
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}
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# See if other registers are problems
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set test "info other register"
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gdb_test_multiple "i r r3" "$test" {
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-re "warning: reading register.*$gdb_prompt $" {
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fail "$test"
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}
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-re "r3.*$gdb_prompt $" {
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pass "$test"
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}
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}
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# Get rid of the process
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gdb_test "p should_exit = 1"
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gdb_continue_to_end
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# Be paranoid
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kill_wait_spawned_process $test_spawn_id
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}
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proc_with_prefix do_command_attach_tests {} {
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global gdb_prompt
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global binfile
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if ![isnative] then {
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unsupported "command attach test"
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return 0
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}
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set test_spawn_id [spawn_wait_for_attach $binfile]
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set testpid [spawn_id_get_pid $test_spawn_id]
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gdb_exit
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set res [gdb_spawn_with_cmdline_opts \
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"-quiet -iex \"set height 0\" -iex \"set width 0\" --pid=$testpid"]
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set test "starting with --pid"
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gdb_test_multiple "" $test {
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-re "Reading symbols from.*$gdb_prompt $" {
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pass "$test"
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}
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}
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# Get rid of the process
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kill_wait_spawned_process $test_spawn_id
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}
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# Test ' gdb --pid PID -ex "run" '. GDB used to have a bug where
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# "run" would run before the attach finished - PR17347.
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proc test_command_line_attach_run {} {
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global gdb_prompt
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global binfile
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# Skip test if we cannot attach on the command line and use the run command.
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# ??? Unclear what condition to use to return here when using gdbserver.
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# ??? None of the below works.
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# ![isnative] || [target_is_gdbserver]
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# ![isnative] || [use_gdb_stub]
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if { ![isnative] || [is_remote target] } then {
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unsupported "commandline attach run test"
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return 0
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}
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with_test_prefix "cmdline attach run" {
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set test_spawn_id [spawn_wait_for_attach $binfile]
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set testpid [spawn_id_get_pid $test_spawn_id]
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set test "run to prompt"
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gdb_exit
|
|
|
|
set res [gdb_spawn_with_cmdline_opts \
|
|
"-quiet -iex \"set height 0\" -iex \"set width 0\" --pid=$testpid -ex \"start\""]
|
|
if { $res != 0} {
|
|
fail $test
|
|
kill_wait_spawned_process $test_spawn_id
|
|
return $res
|
|
}
|
|
gdb_test_multiple "" $test {
|
|
-re {Attaching to.*Start it from the beginning\? \(y or n\) } {
|
|
pass $test
|
|
}
|
|
}
|
|
|
|
send_gdb "y\n"
|
|
|
|
set test "run to main"
|
|
gdb_test_multiple "" $test {
|
|
-re "Temporary breakpoint .* main .*$gdb_prompt $" {
|
|
pass $test
|
|
}
|
|
}
|
|
|
|
# Get rid of the process
|
|
kill_wait_spawned_process $test_spawn_id
|
|
}
|
|
}
|
|
|
|
|
|
# This is a test of 'set exec-file-mismatch' handling.
|
|
|
|
proc_with_prefix do_attach_exec_mismatch_handling_tests {} {
|
|
global gdb_prompt
|
|
global binfile
|
|
global binfile2
|
|
global binfile3
|
|
|
|
clean_restart $binfile
|
|
|
|
# Start two programs that can be attached to.
|
|
# The first program contains a 'int bidule' variable, the second a 'float bidule'.
|
|
|
|
set test_spawn_id [spawn_wait_for_attach $binfile]
|
|
set testpid [spawn_id_get_pid $test_spawn_id]
|
|
set test_spawn_id2 [spawn_wait_for_attach $binfile2]
|
|
set testpid2 [spawn_id_get_pid $test_spawn_id2]
|
|
|
|
|
|
# Test with the default value of 'set exec-file-mismatch load".
|
|
set test "mismatch load"
|
|
gdb_test "attach $testpid" "Attaching to program.*" "$test attach1"
|
|
# Verify that we can "see" the variable "bidule" in the
|
|
# program, and that it is an integer.
|
|
gdb_test "ptype bidule" " = int" "$test after attach1, bidule is int"
|
|
# Detach the process.
|
|
gdb_test "detach" "Detaching from program: .* detached\\\]" "$test detach1"
|
|
gdb_test_multiple "attach $testpid2" "$test attach2" {
|
|
-re "Attaching to program.*exec-file-mismatch handling is currently \"ask\".*Load new symbol table from .*attach2\".*\(y or n\)" {
|
|
pass "$test attach2"
|
|
}
|
|
}
|
|
gdb_test "y" "Reading symbols from .*attach2.*" "$test load attach2"
|
|
# Verify that we can "see" the variable "bidule" in the
|
|
# program, and that it is a float.
|
|
gdb_test "ptype bidule" " = float" "$test after attach2 and load, bidule is float"
|
|
# Detach the process.
|
|
gdb_test "detach" "Detaching from program: .* detached\\\]" "$test detach attach2"
|
|
|
|
|
|
# Test with 'set exec-file-mismatch warn".
|
|
set test "mismatch warn"
|
|
gdb_test_no_output "set exec-file-mismatch warn"
|
|
gdb_test_multiple "attach $testpid" "$test attach" {
|
|
-re "Attaching to program.*exec-file-mismatch handling is currently \"warn\".*$gdb_prompt" {
|
|
pass "$test attach"
|
|
}
|
|
}
|
|
# Verify that we still (wrongly) "see" the variable "bidule" as a float,
|
|
# as we have not loaded the correct exec-file.
|
|
gdb_test "ptype bidule" " = float" "$test after attach and warn, bidule is float"
|
|
# Detach the process.
|
|
gdb_test "detach" "Detaching from program: .* detached\\\]" "$test detach attach"
|
|
|
|
|
|
# Same test but with 'set exec-file-mismatch off".
|
|
set test "mismatch off"
|
|
gdb_test_no_output "set exec-file-mismatch off"
|
|
gdb_test_multiple "attach $testpid" "$test attach" {
|
|
-re "Attaching to program.*$gdb_prompt" {
|
|
pass "$test attach"
|
|
}
|
|
}
|
|
# Verify that we still (wrongly) "see" the variable "bidule" as a float,
|
|
# as we have not warned the user and not loaded the correct exec-file
|
|
gdb_test "ptype bidule" " = float" "$test after attach and warn, bidule is float"
|
|
# Detach the process.
|
|
gdb_test "detach" "Detaching from program: .* detached\\\]" "$test detach attach"
|
|
|
|
# Test that the 'exec-file' changed is checked before exec-file-mismatch.
|
|
set test "mismatch exec-file changed has priority"
|
|
gdb_test_no_output "set exec-file-mismatch ask"
|
|
gdb_test_multiple "attach $testpid" "$test attach1 again, initial exec-file" {
|
|
-re "Attaching to program.*exec-file-mismatch handling is currently \"ask\".*Load new symbol table from .*attach\".*\(y or n\)" {
|
|
gdb_test "y" "Reading symbols from .*attach.*" $gdb_test_name
|
|
}
|
|
}
|
|
|
|
|
|
gdb_test "detach" "Detaching from program: .* detached\\\]" "$test detach attach initial exec-file"
|
|
|
|
# Change the exec-file and attach to a new process using the changed file.
|
|
remote_exec build "mv ${binfile} ${binfile}.initial"
|
|
remote_exec build "mv ${binfile3} ${binfile}"
|
|
# Ensure GDB detects ${binfile} has changed when checking timestamp.
|
|
sleep 1
|
|
remote_exec build "touch ${binfile}"
|
|
set test_spawn_id3 [spawn_wait_for_attach $binfile]
|
|
set testpid3 [spawn_id_get_pid $test_spawn_id3]
|
|
|
|
gdb_test "attach $testpid3" "Attaching to program.*attach' has changed; re-reading symbols.*" \
|
|
"$test attach1 again, after changing exec-file"
|
|
gdb_test "detach" "Detaching from program: .* detached\\\]" "$test detach after attach changed exec-file"
|
|
|
|
# Now, test the situation when current exec-file has changed
|
|
# and we attach to a pid using another file.
|
|
# Ensure GDB detects ${binfile} has changed when checking timestamp.
|
|
sleep 1
|
|
remote_exec build "touch ${binfile}"
|
|
|
|
gdb_test_multiple "attach $testpid2" "$test attach2" {
|
|
-re "Attaching to program.*exec-file-mismatch handling is currently \"ask\".*Load new symbol table from .*attach2\".*\(y or n\)" {
|
|
gdb_test "y" "Reading symbols from .*attach2.*" $gdb_test_name
|
|
}
|
|
}
|
|
|
|
# Restore initial build situation.
|
|
remote_exec build "mv ${binfile} ${binfile3}"
|
|
remote_exec build "mv ${binfile}.initial ${binfile}"
|
|
|
|
# Don't leave a process around
|
|
kill_wait_spawned_process $test_spawn_id
|
|
kill_wait_spawned_process $test_spawn_id2
|
|
kill_wait_spawned_process $test_spawn_id3
|
|
}
|
|
|
|
do_attach_tests
|
|
do_attach_failure_tests
|
|
do_call_attach_tests
|
|
do_attach_exec_mismatch_handling_tests
|
|
|
|
# Test "gdb --pid"
|
|
|
|
do_command_attach_tests
|
|
|
|
|
|
test_command_line_attach_run
|
|
|
|
return 0
|