| # Copyright 2013-2019 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| standard_testfile |
| set executable ${testfile} |
| |
| if { [gdb_compile_pthreads \ |
| "${srcdir}/${subdir}/${srcfile}" \ |
| "${binfile}" \ |
| executable {debug}] != "" } { |
| untested "failed to compile" |
| return -1 |
| } |
| |
| clean_restart $executable |
| |
| # Start the second thread. |
| if ![runto start] { |
| return -1 |
| } |
| |
| # Go back to the main thread, and leave it in the loop, where we're |
| # reasonably sure we don't have 'conditional jmp $pc'-like |
| # instructions. We wouldn't be able to detect whether a stepi makes |
| # progress over those. |
| gdb_test_no_output "set scheduler-locking on" |
| gdb_test "thread 1" "Switching to .*" |
| gdb_breakpoint $srcfile:[gdb_get_line_number "set break 2 here"] |
| gdb_continue_to_breakpoint "loop" ".* set break 2 here .*" |
| |
| # Now back to thread 2, and let it queue a signal in thread 1. |
| gdb_test "thread 2" "Switching to .*" |
| gdb_breakpoint $srcfile:[gdb_get_line_number "set break here"] |
| gdb_continue_to_breakpoint "after pthread_kill" ".* set break here .*" |
| |
| # We're now ready to stepi thread 1. It should immediately dequeue |
| # the signal. |
| gdb_test "thread 1" "Switching to .*" "thread 1 again" |
| |
| # No longer need these. |
| delete_breakpoints |
| |
| # Turn on infrun debugging, so we can tell whether the signal is |
| # really dequeued and that GDB sees it. |
| gdb_test_no_output "set debug infrun 1" |
| |
| # Make sure the target backend reports the signal to GDB core. Some |
| # backends (like Linux) skip reporting a signal if set to |
| # pass/nostop/noprint, resuming the thread immediately instead. |
| gdb_test "handle SIGCHLD print" |
| |
| # Helper to extract the current PC. PREFIX is used to make each call |
| # have its own unique test name. |
| |
| proc get_pc { prefix } { |
| with_test_prefix "$prefix" { |
| return [get_hexadecimal_valueof "\$pc" ""] |
| } |
| } |
| |
| set prev_addr [get_pc "before stepi"] |
| if {$prev_addr == ""} { |
| return |
| } |
| |
| # True if we saw the infrun path we want to test be exercised. |
| set seen 0 |
| |
| set test "stepi" |
| if {[gdb_test_multiple "stepi" "$test" { |
| -re "infrun: random signal" { |
| set seen 1 |
| exp_continue |
| } |
| -re "$gdb_prompt $" { |
| } |
| }] != 0} { |
| return |
| } |
| |
| if {$seen} { |
| pass "$test" |
| } else { |
| fail "$test (no random signal)" |
| } |
| |
| set addr [get_pc "after stepi"] |
| if {$addr == ""} { |
| return |
| } |
| |
| set test "stepi interfered by signal makes progress" |
| if {$addr == $prev_addr} { |
| fail "$test" |
| } else { |
| pass "$test" |
| } |