[Bug breakpoints/15693] New: Extra *running event when call-style dprintf hits

["marc.khouzam at ericsson dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15693

            Bug ID: 15693
           Summary: Extra *running event when call-style dprintf hits
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: breakpoints
          Assignee: unassigned at sourceware dot org
          Reporter: marc.khouzam at ericsson dot com

With HEAD of June 27 which has the fix to Bug 15075, I'm seeing an un-expected
*running event each time a dprintf is hit in the dprintf-style 'call'.

Here is an cleaned up session showing the problem:

> gdb.7.7 -i mi loopfirst
=thread-group-added,id="i1"
~"GNU gdb (GDB) 7.6.50.20130627-cvs\n"

(gdb) -dprintf-insert 8 "hello\n"
^done,bkpt={number="1",type="dprintf",disp="keep",enabled="y",addr="0x0000000000400570",func="main()",file="loopfirst.cc",fullname="/home/lmckhou/testing/loopfirst.cc",line="8",thread-groups=["i1"],times="0",script={"printf
\"hello\\n\""},original-location="/home/lmckhou/testing/loopfirst.cc:8"}

(gdb) set dprintf-style call
&"set dprintf-style call\n"
=breakpoint-modified,bkpt={number="1",type="dprintf",disp="keep",enabled="y",addr="0x0000000000400570",func="main()",file="loopfirst.cc",fullname="/home/lmckhou/testing/loopfirst.cc",line="8",thread-groups=["i1"],times="0",script={"call
(void) printf
(\\"hello\\\\n\\")"},original-location="/home/lmckhou/testing/loopfirst.cc:8"}
=cmd-param-changed,param="dprintf-style",value="call"
^done

(gdb) -exec-run
=thread-group-started,id="i1",pid="6627"
=thread-created,id="1",group-id="i1"
^running
*running,thread-id="all"
(gdb) 
[...]
=breakpoint-modified,bkpt={number="1",type="dprintf",disp="keep",enabled="y",addr="0x0000000000400570",func="main()",file="loopfirst.cc",fullname="/home/lmckhou/testing/loopfirst.cc",line="8",thread-groups=["i1"],times="1",script={"call
(void) printf
(\\"hello\\\\n\\")"},original-location="/home/lmckhou/testing/loopfirst.cc:8"}
hello
*running,thread-id="1"

=> we can see this extra *running event, which is not seen when using the 'gdb'
dprintf-style.

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