1# connect gdb to Valgrind gdbserver: 2target remote | ./vgdb --wait=60 --vgdb-prefix=./vgdb-prefix-nlvgdbsigqueue 3echo vgdb launched process attached\n 4monitor v.set vgdb-error 999999 5# 6# 7# simulate control-c 1 second after having seen sleepers program outputting 'main' 8shell ./simulate_control_c --vgdb-prefix=./vgdb-prefix-nlvgdbsigqueue 1 grep main nlvgdbsigqueue.stderr.out 9# 10# send SIGUSR1/SIGUSR1 in a few seconds, after vgdb has attached 11# vgdb will attach when it will receive the control-c 12shell ./send_signal USR1 --vgdb-prefix=./vgdb-prefix-nlvgdbsigqueue 0 grep attachedwaitingforsigusr1 nlvgdbsigqueue.stdoutB.out 13shell ./send_signal USR1 --vgdb-prefix=./vgdb-prefix-nlvgdbsigqueue 1 grep attachedwaitingforsigusr1 nlvgdbsigqueue.stdoutB.out 14# 15echo continuing to have vgdb interrupted by simulate_control_c\n 16continue 17# 18# Now vgdb should have received the interrupt, and so has 19# attached to the sleeping process. 20# wait for the USR sig to be sent, that will be queued by vgdb. 21echo attachedwaitingforsigusr1\n 22# send_signal tries every second the guardcmd 23# so we must now wait to be (somewhat) sure the 2 SIGUSR1 are emitted 24shell sleep 4 25# continue, so as to have vgdb sending queued signals when PTRACE_DETACHing 26echo continuing to receive first SIGUSR1\n 27continue 28# simulate a control c to afterwards stop the execution 29shell ./simulate_control_c --vgdb-prefix=./vgdb-prefix-nlvgdbsigqueue 1 30echo continuing to receive second SIGUSR1\n 31continue 32kill 33quit 34