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113 lines
3.6 KiB
Plaintext
113 lines
3.6 KiB
Plaintext
# Copyright (C) 2011-2018 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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# Test that GDB doesn't inadvertently resume the stepped thread when a
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# signal arrives while stepping over the breakpoint that last caused a
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# stop, when the thread that hit that breakpoint is not the stepped
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# thread.
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standard_testfile
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set executable ${testfile}
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if [target_info exists gdb,nosignals] {
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verbose "Skipping ${testfile}.exp because of nosignals."
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return -1
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}
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if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
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executable [list debug "incdir=${objdir}"]] != "" } {
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return -1
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}
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proc get_value {var test} {
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global expect_out
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global gdb_prompt
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global decimal
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set value -1
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gdb_test_multiple "print $var" "$test" {
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-re ".*= ($decimal).*\r\n$gdb_prompt $" {
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set value $expect_out(1,string)
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pass "$test"
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}
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}
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return ${value}
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}
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# Start with a fresh gdb.
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clean_restart $executable
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if ![runto_main] {
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return -1
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}
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gdb_breakpoint [gdb_get_line_number "set wait-thread-2 breakpoint here"]
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gdb_continue_to_breakpoint "run to wait-thread-2 breakpoint"
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gdb_test "info threads" "" "info threads with thread 2"
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gdb_breakpoint [gdb_get_line_number "set wait-thread-3 breakpoint here"]
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gdb_continue_to_breakpoint "run to breakpoint"
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gdb_test "info threads" "" "info threads with thread 3"
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gdb_test "set scheduler-locking on"
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gdb_breakpoint [gdb_get_line_number "set breakpoint child_two here"]
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gdb_breakpoint [gdb_get_line_number "set breakpoint child_one here"]
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gdb_test "thread 3" "" "switch to thread 3 to run to its breakpoint"
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gdb_continue_to_breakpoint "run to breakpoint in thread 3"
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gdb_test "thread 2" "" "switch to thread 2 to run to its breakpoint"
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gdb_continue_to_breakpoint "run to breakpoint in thread 2"
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delete_breakpoints
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gdb_test "b *\$pc" "" "set breakpoint to be stepped over"
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# Make sure the first loop breaks without hitting the breakpoint
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# again.
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gdb_test "p *myp = 0" " = 0" "force loop break in thread 2"
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# We want "print" to make sure the target reports the signal to the
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# core.
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gdb_test "handle SIGUSR1 print nostop pass" "" ""
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gdb_test "thread 1" "" "switch to thread 1 to queue signal in thread 2"
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gdb_test "next 2" "pthread_join .*" "queue signal in thread 2"
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gdb_test "thread 3" "" "switch to thread 3 for stepping"
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set my_number [get_value "my_number" "get my_number"]
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set cnt_before [get_value "args\[$my_number\]" "get count before step"]
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gdb_test "set scheduler-locking off"
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# Make sure we're exercising the paths we want to.
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gdb_test "set debug infrun 1"
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set test "step"
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gdb_test_sequence $test $test {
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"need to step-over"
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"resume \\(step=1"
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"signal arrived while stepping over breakpoint"
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"stepped to a different line"
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"callme"
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}
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set cnt_after [get_value "args\[$my_number\]" "get count after step"]
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# Test that GDB doesn't inadvertently resume the stepped thread when a
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# signal arrives while stepping over a breakpoint in another thread.
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gdb_assert { $cnt_before + 1 == $cnt_after } "stepped thread under control"
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