GDB two-breakpoints inter-communication between gdb and gdbstub of qemu

$tcpflow -c -i lo0 port 1234

tcpflow[5508]: 127.000.000.001.01234-127.000.000.001.58366: new flow
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $qSupported:multiprocess+;xmlRegisters=i386;qRelocInsn+#b5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $PacketSize=1000#f1
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $Hg0#df
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $?#3f
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $T05thread:01;#07
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $Hc-1#09
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $qC#b4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $QC1#c5
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $qAttached#8f
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $#00
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $g#67
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $0000000000000000230600000000000000000000000000000000000000000000f0ff00000200000000f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f030000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f0000#e4
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,1#2c
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,1#2c
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,1#2c
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,1#2c
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,1#2c
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,1#2c
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,8#33
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $0000000000000000#00
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $mfff0,7#32
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00000000000000#a0
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $qTStatus#49
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $#00
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,1#c4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $qTStatus#49
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $#00
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,1#c5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $00#60
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $qTStatus#49
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $#00
127.000.000.001.58366-127.000.000.001.01234: +

 

 Reach 0x7c00

127.000.000.001.58366-127.000.000.001.01234: $qTStatus#49
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $#00
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $Z0,7c00,1#0d
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $Z0,7c01,1#0e
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $vCont?#49
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $vCont;c;C;s;S#62
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $vCont;c#a8
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $T05thread:01;#07
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $g#67
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $55aa00000000000080000000000000001c6f0000000000000000000000000000007c00000202000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f030000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f0000#21
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $z0,7c00,1#2d
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $z0,7c01,1#2e
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,1#c4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $fa#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,1#c4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $fa#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,1#c4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $fa#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,1#c4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $fa#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,1#c4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $fa#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,1#c4
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $fa#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,8#cb
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $faeb6c0000004c49#4b
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c00,7#ca
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $faeb6c0000004c#de
127.000.000.001.58366-127.000.000.001.01234: +

 Reach 0x7c01
127.000.000.001.58366-127.000.000.001.01234: $vCont;s:1#23
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $T05thread:01;#07
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $g#67
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $55aa00000000000080000000000000001c6f0000000000000000000000000000017c00000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f030000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f0000#20
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,1#c5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,1#c5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,1#c5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,1#c5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,1#c5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,1#c5
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb#c7
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,8#cc
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb6c0000004c494c#1b
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $m7c01,7#cb
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $eb6c0000004c49#84
127.000.000.001.58366-127.000.000.001.01234: +

  Last “c”

127.000.000.001.58366-127.000.000.001.01234: $vCont;s:1#23
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $T05thread:01;#07
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $g#67
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $55aa00000000000080000000000000001c6f00000000000000000000000000006f7c00000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f030000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000801f0000#5b
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $qTStatus#49
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $#00
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $Z0,7c00,1#0d
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $Z0,7c01,1#0e
127.000.000.001.01234-127.000.000.001.58366: +
127.000.000.001.01234-127.000.000.001.58366: $OK#9a
127.000.000.001.58366-127.000.000.001.01234: +
127.000.000.001.58366-127.000.000.001.01234: $vCont;c#a8
127.000.000.001.01234-127.000.000.001.58366: +
^Ctcpflow[5508]: terminating