109 lines
3 KiB
Text
109 lines
3 KiB
Text
# Copyright 2013-2015 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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standard_testfile
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set executable ${testfile}
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if { [gdb_compile_pthreads \
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"${srcdir}/${subdir}/${srcfile}" \
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"${binfile}" \
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executable {debug}] != "" } {
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untested "Couldn't compile test program."
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return -1
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}
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clean_restart $executable
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# Start the second thread.
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if ![runto start] {
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return -1
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}
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# Go back to the main thread, and leave it in the loop, where we're
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# reasonably sure we don't have 'conditional jmp $pc'-like
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# instructions. We wouldn't be able to detect whether a stepi makes
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# progress over those.
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gdb_test_no_output "set scheduler-locking on"
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gdb_test "thread 1" "Switching to .*"
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gdb_breakpoint $srcfile:[gdb_get_line_number "set break 2 here"]
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gdb_continue_to_breakpoint "loop" ".* set break 2 here .*"
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# Now back to thread 2, and let it queue a signal in thread 1.
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gdb_test "thread 2" "Switching to .*"
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gdb_breakpoint $srcfile:[gdb_get_line_number "set break here"]
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gdb_continue_to_breakpoint "after pthread_kill" ".* set break here .*"
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# We're now ready to stepi thread 1. It should immediately dequeue
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# the signal.
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gdb_test "thread 1" "Switching to .*" "thread 1 again"
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# No longer need these.
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delete_breakpoints
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# Turn on infrun debugging, so we can tell whether the signal is
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# really dequeued and that GDB sees it.
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gdb_test_no_output "set debug infrun 1"
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# Make sure the target backend reports the signal to GDB core. Some
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# backends (like Linux) skip reporting a signal if set to
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# pass/nostop/noprint, resuming the thread immediately instead.
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gdb_test "handle SIGCHLD print"
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# Helper to extract the current PC. PREFIX is used to make each call
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# have its own unique test name.
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proc get_pc { prefix } {
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with_test_prefix "$prefix" {
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return [get_hexadecimal_valueof "\$pc" ""]
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}
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}
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set prev_addr [get_pc "before stepi"]
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if {$prev_addr == ""} {
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return
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}
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# True if we saw the infrun path we want to test be exercised.
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set seen 0
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set test "stepi"
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if {[gdb_test_multiple "stepi" "$test" {
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-re "infrun: random signal" {
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set seen 1
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exp_continue
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}
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-re "$gdb_prompt $" {
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}
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}] != 0} {
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return
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}
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if {$seen} {
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pass "$test"
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} else {
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fail "$test (no random signal)"
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}
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set addr [get_pc "after stepi"]
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if {$addr == ""} {
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return
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}
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set test "stepi interfered by signal makes progress"
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if {$addr == $prev_addr} {
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fail "$test"
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} else {
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pass "$test"
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}
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