[Bug mi/15806] New: file path separator becomes "\\\\" instead of "\\" when GDB report breakpoint-modified in MI mode

["asmwarrior at gmail dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15806

            Bug ID: 15806
           Summary: file path separator becomes "\\\\" instead of "\\"
                    when GDB report breakpoint-modified in MI mode
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mi
          Assignee: unassigned at sourceware dot org
          Reporter: asmwarrior at gmail dot com

Hi, when debug a simple helloworld program under Codeblocks, I have such log
(the log is copied from Codeblocks' gdb-debugger-mi plugin's log, so there are
some log messages which is the plugin itself)

Active debugger config: GDB/MI:Default
start debugger
Selecting target: 
Debug
Adding file: E:\code\cb\test_code\helloworld\bin\Debug\helloworld.exe

[debug]PATH=.;E:\code\gcc\PCXMinGW463\bin;E:\code\gcc\PCXMinGW463;.;F:\cb_sf_git\trunk\src\lib;E:\code\cb\wx\wxWidgets-2.8.12\lib\gcc_dll;F:\cb_sf_git\trunk\src\devel;E:\code\common_bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32\wbem;D:\Program
Files\TortoiseSVN\bin

GDB path: E:\code\gcc\PCXMinGW463\bin\gdb.exe
DEBUGGEE path: E:\code\cb\test_code\helloworld\bin\Debug\helloworld.exe
Command-line: E:\code\gcc\PCXMinGW463\bin\gdb.exe -fullname  -quiet
--interpreter=mi -args E:\code\cb\test_code\helloworld\bin\Debug\helloworld.exe
Working dir : E:\code\cb\test_code\helloworld\.
Starting debugger: 

[debug]Executing command: E:\code\gcc\PCXMinGW463\bin\gdb.exe -fullname  -quiet
--interpreter=mi -args E:\code\cb\test_code\helloworld\bin\Debug\helloworld.exe

done

[debug]Executor stopped
[debug]Debugger_GDB_MI::CommitBreakpoints
[debug]ActionsMap::Run -> starting action: 0ADA2DE0 id: 1
[debug]BreakpointAddAction::m_initial_cmd = 10000000000
[debug]cmd==>10000000000-break-insert -f
E:\code\cb\test_code\helloworld\main.cpp:7
[debug]ActionsMap::Run -> starting action: 060E4E40 id: 2
[debug]cmd==>20000000000-exec-arguments 
[debug]ActionsMap::Run -> starting action: 060E5278 id: 3
[debug]cmd==>30000000000-enable-pretty-printing
[debug]ActionsMap::Run -> starting action: 0A841698 id: 4
[debug]cmd==>40000000000-interpreter-exec console "source
E:\\code\\gcc\\PCXMinGW463\\bin\\my.gdb"
[debug]output==>=thread-group-added,id="i1"
[debug]unparsable_output==>~"Reading symbols from
E:\\code\\cb\\test_code\\helloworld\\bin\\Debug\\helloworld.exe..."
[debug]notification event recieved!
[debug]unparsable_output==>~"done.\n"
[debug]unparsable_output==>(gdb)
[debug]output==>10000000000^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x004016ee",func="main()",file="E:\\code\\cb\\test_code\\helloworld\\main.cpp",fullname="E:\\code\\cb\\test_code\\helloworld\\main.cpp",line="7",thread-groups=["i1"],times="0",original-location="E:\\code\\cb\\test_code\\helloworld\\main.cpp:7"}
[debug]unparsable_output==>(gdb)
[debug]output==>20000000000^done
[debug]unparsable_output==>(gdb)
[debug]output==>30000000000^done
[debug]unparsable_output==>(gdb)
[debug]output==>=cmd-param-changed,param="filename-display",value="absolute"
[debug]output==>40000000000^done
[debug]unparsable_output==>(gdb)
[debug]BreakpointAddAction::OnCommandResult: 10000000000
[debug]BreakpointAddAction::breakpoint index is 1
[debug]BreakpointAddAction::Finishing1
[debug]notification event recieved!
[debug]BreakpointAddAction::destructor
[debug]ActionsMap::Run -> starting action: 064400A0 id: 5
[debug]RunAction::OnStart -> -exec-run
[debug]cmd==>50000000000-exec-run
[debug]output==>=thread-group-started,id="i1",pid="3080"
[debug]output==>=thread-created,id="1",group-id="i1"
[debug]unparsable_output==>~"[New Thread 3080.0x824]\n"
[debug]output==>50000000000^running
[debug]output==>*running,thread-id="all"
[debug]unparsable_output==>(gdb)
[debug]output==>=library-loaded,id="C:\\WINDOWS\\system32\\ntdll.dll",target-name="C:\\WINDOWS\\system32\\ntdll.dll",host-name="C:\\WINDOWS\\system32\\ntdll.dll",symbols-loaded="0",thread-group="i1"
[debug]output==>=library-loaded,id="C:\\WINDOWS\\system32\\kernel32.dll",target-name="C:\\WINDOWS\\system32\\kernel32.dll",host-name="C:\\WINDOWS\\system32\\kernel32.dll",symbols-loaded="0",thread-group="i1"
[debug]output==>=library-loaded,id="C:\\WINDOWS\\system32\\msvcrt.dll",target-name="C:\\WINDOWS\\system32\\msvcrt.dll",host-name="C:\\WINDOWS\\system32\\msvcrt.dll",symbols-loaded="0",thread-group="i1"
[debug]notification event recieved!

Found child pid: 3080


[debug]notification event recieved!
[debug]RunAction success, the debugger is !stopped!
[debug]RunAction::Output - type: result
class: running
results:

[debug]Executor started
[debug]notification event recieved!
[debug]notification event recieved!
[debug]notification event recieved!
[debug]notification event recieved!
[debug]output==>=breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x004016ee",func="main()",file="E:\\\\code\\\\cb\\\\test_code\\\\helloworld\\\\main.cpp",fullname="E:\\\\code\\\\cb\\\\test_code\\\\helloworld\\\\main.cpp",line="7",thread-groups=["i1"],times="1",original-location="E:\\\\code\\\\cb\\\\test_code\\\\helloworld\\\\main.cpp:7"}
[debug]RunAction::destructor
[debug]output==>*stopped,reason="breakpoint-hit",disp="keep",bkptno="1",frame={addr="0x004016ee",func="main",args=[],file="E:\\code\\cb\\test_code\\helloworld\\main.cpp",fullname="E:\\code\\cb\\test_code\\helloworld\\main.cpp",line="7"},thread-id="1",stopped-threads="all"
[debug]unparsable_output==>(gdb)
[debug]notification event recieved!
[debug]notification event recieved!
[debug]Executor stopped

---------------------------------------------------------------------
Here, I simply set a breakpoint, then start running the inferior, than the bp
get hit, but I see that there is a message from GDB which I believe is wrong:

file="E:\\\\code\\\\cb\\\\test_code\\\\helloworld\\\\main.cpp"

I think it should be:

file="E:\\code\\cb\\test_code\\helloworld\\main.cpp"

---------------------------------------------------------------------
I'm using the latest GDB cvs 2013-07-30 build myself. (MinGW 4.6.3), the
testing code is below:
--------------------------------------
#include <iostream>

using namespace std;

int main()
{
    int a = 0;
    a = 1;
    cout << "Hello world!" << endl;
    return 0;
}
--------------------------------------

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