[Bug gdb/18274] gdb crashed when I move my mouse to a const string

["305128674 at qq dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18274

--- Comment #4 from jiangtaijin <305128674 at qq dot com> ---
(In reply to Pedro Alves from comment #3)
> OK, thanks.
> 
> In order to understand what's going on, we'll need:
> 
> - "set debug infrun 1 + set debug remote 1" logs (both enabled at the same
> time).
> 
> - ideally, get eclipse out of the equation, and to reproduce this with gdb
> alone.  Enable Eclipse gdb logging, to find the MI traffic between Eclipse
> and gdb.

Thanks for your help
I enable "set debug infrun 1 + set debug remote 1" when gdb start and catch the
logs.
it's diffrent from what i used catchedã
I cann't andstand the rsp command "P, G, cont:c",why gdb send this when my
mouse move to a const string. the gdbstub is write by my selfï some command is
not implemented, such as "P". Is this the problemï

here is the log(I have clear logs before my mouse move to the const string, so
this is the logs relate to the problem):
Sending packet: $Pe=748200c0#ba...Ack
Packet received: 
Packet P (set-register) is NOT supported
Sending packet:
$G010000002cce6d2460390fc0748200c0384e02c00505050506060606070707070808080809090909101010100455d720744e02c0f854d720748200c0888200c053000020#58...Ack
Packet received: OK
Sending packet:
$G0e0000002cce6d2460390fc0748200c0384e02c00505050506060606070707070808080809090909101010100455d720744e02c0f854d720748200c0888200c053000020#8c...Ack
Packet received: OK
Sending packet:
$G0e0000002cce6d2460390fc0748200c0384e02c00505050506060606070707070808080809090909101010100455d720744e02c0f054d720748200c0888200c053000020#84...Ack
Packet received: OK
infrun: clear_proceed_status_thread (Thread 67174450)
Sending packet:
$G0e0000002cce6d2460390fc0748200c0384e02c00505050506060606070707070808080809090909101010100455d720744e02c0f054d720748200c088ba01c053000020#de...Ack
Packet received: OK
infrun: proceed (addr=0xc001ba88, signal=GDB_SIGNAL_0, step=0)
Sending packet: $Z0,c0008274,4#de...Ack
Packet received: OK
infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0, current thread
[Thread 67174450] at 0xc001ba88
Sending packet: $vCont;c#a8...Ack
infrun: wait_for_inferior ()
Packet received: T05thread:4010032;
infrun: target_wait (-1, status) =
infrun:   42000 [Thread 67174450],
infrun:   status->kind = stopped, signal = GDB_SIGNAL_TRAP
infrun: TARGET_WAITKIND_STOPPED
Sending packet: $g#67...Ack
Packet received:
683a0fc00e00000000400fc0683a0fc0384e02c00505050506060606070707070808080809090909101010100455d720704f02c0f854d72030ba01c0748200c053000020
infrun: stop_pc = 0xc0008274
Sending packet: $mc0008274,4#95...Ack
Packet received: fedeffe7
infrun: BPSTAT_WHAT_STOP_SILENT
infrun: stop_waiting
Sending packet: $qfThreadInfo#bb...Ack
Packet received: m4010032
Sending packet: $qsThreadInfo#c8...Ack
Packet received: l
Sending packet: $z0,c0008274,4#fe...Ack
Packet received: 
d:/MinGW/msys/1.0/home/Administrator/staging/gdb-7.9/gdb/infrun.c:6577:
internal-error: normal_stop: Assertion `get_frame_type (frame) == DUMMY_FRAME'
failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) [answered Y; input not from terminal]

This is a bug, please report it.  For instructions, see:
<http://www.gnu.org/software/gdb/bugs/>.


This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
d:/MinGW/msys/1.0/home/Administrator/staging/gdb-7.9/gdb/infrun.c:6577:
internal-error: normal_stop: Assertion `get_frame_type (frame) == DUMMY_FRAME'
failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) [answered Y; input not from terminal]


Follw is eclipse gdb trace output:
988,254 39-data-evaluate-expression --thread 1 --frame 0 "\"Hello World!\\n\""
988,270 39^done,value="\"Hello World!\\n\""
988,270 (gdb) 
988,317 40-var-create --thread 1 --frame 0 - * "\"Hello World!\\n\""
988,332 40^done,name="var3",numchild="14",value="[14]",type="char
[14]",has_more="0"
988,332 (gdb) 
988,332 41-var-create --thread 1 --frame 0 - * "&(\"Hello World!\\n\")"
988,348 42-var-create --thread 1 --frame 0 - * "\"Hello World!\\n\"[0]"
988,348 43-var-create --thread 1 --frame 0 - * "\"Hello World!\\n\"[1]"
988,348 44-var-create --thread 1 --frame 0 - * "\"Hello World!\\n\"[2]"
988,348 &"Sending packet: $Pe=748200c0#ba..."
988,348 &"Ack\n"
988,348 &"Packet received: \n"
988,348 &"Packet P (set-register) is NOT supported\n"
988,348 &"Sending packet:
$G010000002cce6d2460390fc0748200c0384e02c005050505060606060707070708080808\
09090909101010100455d720744e02c0f854d720748200c0888200c053000020#58..."
988,348 &"Ack\n"
988,348 &"Packet received: OK\n"
988,348 &"Sending packet:
$G0e0000002cce6d2460390fc0748200c0384e02c005050505060606060707070708080808\
09090909101010100455d720744e02c0f854d720748200c0888200c053000020#8c..."
988,348 &"Ack\n"
988,348 &"Packet received: OK\n"
988,348 &"Sending packet:
$G0e0000002cce6d2460390fc0748200c0384e02c005050505060606060707070708080808\
09090909101010100455d720744e02c0f054d720748200c0888200c053000020#84..."
988,348 &"Ack\n"
988,348 &"Packet received: OK\n"
988,348 &"infrun: clear_proceed_status_thread (Thread 67174450)\n"
988,348 &"Sending packet:
$G0e0000002cce6d2460390fc0748200c0384e02c005050505060606060707070708080808\
09090909101010100455d720744e02c0f054d720748200c088ba01c053000020#de..."
988,348 &"Ack\n"
988,348 &"Packet received: OK\n"
988,348 &"infrun: proceed (addr=0xc001ba88, signal=GDB_SIGNAL_0, step=0)\n"
988,348 &"Sending packet: $Z0,c0008274,4#de..."
988,348 &"Ack\n"
988,348 &"Packet received: OK\n"
988,348 &"infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0,
current thread [Thread 6717\
4450] at 0xc001ba88\n"
988,348 &"Sending packet: $vCont;c#a8..."
988,363 &"Ack\n"
988,363 &"infrun: wait_for_inferior ()\n"
988,363 &"Packet received: T05thread:4010032;\n"
988,363 &"infrun: target_wait (-1, status) =\ninfrun:   42000 [Thread
67174450],\ninfrun:   status->\
kind = stopped, signal = GDB_SIGNAL_TRAP\n"
988,363 &"infrun: TARGET_WAITKIND_STOPPED\n"
988,363 &"Sending packet: $g#67..."
988,363 &"Ack\n"
988,363 &"Packet received:
683a0fc00e00000000400fc0683a0fc0384e02c0050505050606060607070707080808080\
9090909101010100455d720704f02c0f854d72030ba01c0748200c053000020\n"
988,363 &"infrun: stop_pc = 0xc0008274\n"
988,363 &"Sending packet: $mc0008274,4#95..."
988,363 &"Ack\n"
988,363 &"Packet received: fedeffe7\n"
988,363 &"infrun: BPSTAT_WHAT_STOP_SILENT\n"
988,363 &"infrun: stop_waiting\n"
988,363 &"Sending packet: $qfThreadInfo#bb..."
988,363 &"Ack\n"
988,363 &"Packet received: m4010032\n"
988,363 &"Sending packet: $qsThreadInfo#c8..."
988,363 &"Ack\n"
988,363 &"Packet received: l\n"
988,363 &"Sending packet: $z0,c0008274,4#fe..."
988,363 &"Ack\n"
988,363 &"Packet received: \n"
988,363
~"d:/MinGW/msys/1.0/home/Administrator/staging/gdb-7.9/gdb/infrun.c:6577:
internal-error: no\
rmal_stop: Assertion `get_frame_type (frame) == DUMMY_FRAME' failed.\nA problem
internal to GDB has \
been detected,\nfurther debugging may prove unreliable.\nQuit this debugging
session? "
988,363 ~"(y or n) [answered Y; input not from terminal]\n"
988,363 &"\nThis is a bug, please report it."
988,363 &"  For instructions, see:\n<http://www.gnu.org/software/gdb/bugs/>."
988,363 &"\n\n"
988,363
~"d:/MinGW/msys/1.0/home/Administrator/staging/gdb-7.9/gdb/infrun.c:6577:
internal-error: no\
rmal_stop: Assertion `get_frame_type (frame) == DUMMY_FRAME' failed.\nA problem
internal to GDB has \
been detected,\nfurther debugging may prove unreliable.\nCreate a core file of
GDB? "
988,363 ~"(y or n) [answered Y; input not from terminal]\n"

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