117 lines
3.2 KiB
Text
117 lines
3.2 KiB
Text
# Copyright (C) 2015 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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# This test verifies that several threads forking while another thread
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# is constantly stepping over a breakpoint is properly handled.
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standard_testfile
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set linenum [gdb_get_line_number "set break here"]
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if {[build_executable "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} {
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return -1
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}
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# The test proper. If COND_BP_TARGET is true, then test with
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# conditional breakpoints evaluated on the target side, if possible.
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# DETACH_ON_FORK is used as value for the "set detach-on-fork"
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# setting. If "on", this exercises GDB explicitly continuing the fork
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# child until exit. If "off", this exercises GDB detaching the fork
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# child.
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proc do_test { cond_bp_target detach_on_fork } {
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global GDBFLAGS
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global srcfile testfile binfile
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global decimal gdb_prompt
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global linenum
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global is_remote_target
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set saved_gdbflags $GDBFLAGS
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set GDBFLAGS [concat $GDBFLAGS " -ex \"set non-stop on\""]
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clean_restart $binfile
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set GDBFLAGS $saved_gdbflags
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if ![runto_main] then {
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fail "Can't run to main"
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return 0
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}
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gdb_test_no_output "set detach-on-fork $detach_on_fork"
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gdb_test "break $linenum if zero == 1" \
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"Breakpoint .*" \
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"set breakpoint that evals false"
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set test "continue &"
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gdb_test_multiple $test $test {
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-re "$gdb_prompt " {
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pass $test
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}
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}
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set fork_count 0
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set ok 0
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set test "inferior 1 exited"
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gdb_test_multiple "" $test {
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-re "Inferior 1 \(\[^\r\n\]+\) exited normally" {
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set ok 1
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pass $test
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}
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-re "Inferior $decimal \(\[^\r\n\]+\) exited normally" {
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incr fork_count
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if {$fork_count <= 100} {
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exp_continue
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} else {
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fail "$test (too many forks)"
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}
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}
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}
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if {!$ok} {
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# No use testing further.
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return
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}
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gdb_test "info threads" "No threads\." \
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"no threads left"
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gdb_test "info inferiors" \
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"Num\[ \t\]+Description\[ \t\]+Executable\[ \t\]+\r\n\\* 1 \[^\r\n\]+" \
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"only inferior 1 left"
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}
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# Wrapper for foreach that calls with_test_prefix on each iteration,
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# including the iterator's current value in the prefix.
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proc foreach_with_prefix {var list body} {
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upvar 1 $var myvar
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foreach myvar $list {
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with_test_prefix "$var=$myvar" {
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uplevel 1 $body
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}
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}
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}
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foreach_with_prefix cond_bp_target {1 0} {
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foreach_with_prefix detach_on_fork {"on" "off"} {
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do_test $cond_bp_target $detach_on_fork
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# Disable "off" for now. The test does pass with
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# detach-on-fork off (at the time of writing), but gdb seems
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# to slow down quadratically as inferiors are created, and
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# then the test takes annoyingly long to complete...
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break
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}
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}
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