Re: [Mingw-users] Is this strange??

[Luke D. <cod...@ho...>]

What happens if you try "-g" instead of "-g2" ?

Do you have another version of GCC/binutils/etc. (e.g. Cygwin) anywhere else
on your system, especially if it is in your PATH?

What happens if you put MinGW (either one) in your PATH?

Luke

----- Original Message ----- 
From: "Parinya Thipchart" <thi...@ya...>
To: <min...@li...>
Sent: Thursday, September 25, 2003 12:22 PM
Subject: [Mingw-users] Is this strange??


> Hello,
>
> I am stuck with these 2 problems I think I had better ask people in the
> list.
> I don't know what to start. Let start with my system.
>
> My system: Windows 2000 pro, gcc 3.3.1, binutils-2.14.90-20030807,
> mingw-runtime 3.1, w32api 2.4 and gdb 5.21.
>
> This is the code I'm going to use for all problems.
>
> ---------->8---------
>
> // winhello.cpp
>
> #include <windows.h>
>
> int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR
> lpCmdLine, int nCmdShow)
> {
>  MessageBox(NULL, "Hello, Windows!", "Hello!", MB_OK);
>  return 0;
> }
>
> ---------->8---------
>
> Strange 1.
> ======
>
> I have MinGW installed at "C:\MinGW" and "C:\MinGWStudio\MinGW"  they both
> are the same tools(as above)
> None of them are in the "PATH".
>
> 1. Create a directory c:\test\mingw\winhello
> 2. Create a file winhello.cpp(as above) in
> c:\test\mingw\winhello\winhello.cpp
> 3. Build winhello.exe in debug mode
> - If I use this command
>
> c:\mingw\bin\g++ -g2 -o c:\test\mingw\winhello\winhello.exe
> c:\test\mingw\winhello\winhello.cpp -mwindows
>
> I get winhello.exe size "710,332"
>
> - but if I use this command(Actually changed the tools directory)
>
> c:\mingwstudio\mingw\bin\g++ -g2 -o c:\test\mingw\winhello\winhello.exe
> c:\test\mingw\winhello\winhello.cpp -mwindows
>
> I get winhello.exe size "710, 844"
>
> and if I move the whole "MinGW" directory to someware else and call from
> this MinGW I will get the different size winhello.exe size in debug mode.
>
> My question: Does the tools directory matter for gdb debugging
information?
>
>
> Strange 2
> ======
>
> If I debug the winhello.exe above with gdb
>
> 1. c:\>c:\mingw\bin\gdb -q -f winhello.exe
>
> 2. (gdb) break "c:/test/mingw/winhello/winhello.cpp:7"     (line 7 is
> MessageBox....)
> Breakpoint 1 at 0x4012ee: file c:/test/mingw/winhello/winhello.cpp, line
7.
> ( The answer from gdb )
>
> 3. (gdb) run
> Starting program: C:\test\mingw\winhello/winhello.exe
>
> Program exited normally.
>
> !!!! gdb didn't stop !!!!
>
> 4. Quit gdb and
> c:\>copy c:\test\mingw\winhello\winhello.cpp c:\test
>
> 5. c:\>cd\test
> 6. rebuilt winhello in c:\test directory with this command
>
> c:\>c:\mingw\bin\g++ -g2 -o c:\test\winhello.exe
> c:\test\winhello.cpp -mwindows
>
> 7. c:\>c:\mingw\bin\gdb -q -f winhello.exe
>
> 8. (gdb) break "c:/test/winhello.cpp:7"
> Breakpoint 1 at 0x4012ee: file c:/test/winhello.cpp, line 7.
>
> 9. (gdb) run
> Starting program: C:\test/winhello.exe
>
> Breakpoint 1, WinMain (hInstance=0x400000, hPrevInstance=0x0,
>     lpCmdLine=0x232445 "", nCmdShow=10) at c:/test/winhello.cpp:7
> c:/test/winhello.cpp:7:140:beg:0x4012ee
> Current language:  auto; currently c++
>
> !!!! This time gdb stopped at the breakpoint !!!!
>
>
> I don't know if it happens with other MinGW tools or not.
>
> If anyone has any idea about this please let me know.
>
> Regards,
> Parinya
>