Re: Insight Actually work or is it just an alpha orpre-alpha?

[Jim Ingham <jingham at apple dot com>]

Also sprach Dave Arnold:

> hi Jim,
> 
> how do I figure out the cygwin version.  I was looking in the cygcheck
> output but didn't see it.
> is there another way?

Yeah, there is, but I forget what it is...  I am not a big cygwin expert, I
just used it a little bit.

> 
> I'm sort of interested in doing the "build the .exe's yourself" way of doing
> things. I think it would
> be pretty good experience for me.  I've built one gnu utility which had a
> configure script and it
> was pretty cool.  I'd like to step it up and learn more about this and also
> get a Insight working
> with my cygwin install.

The snapshots you get are prebuilt versions of the Cygwin DLL (most of the
guts of Cygwin) as well as the compilation tools.  Then you use these to
build Insight.  You can also build cygwin from scratch, but that is not
really necessary just to get a working Insight.

You will probably get much better answers from the cygwin mailing list,
however...

Jim

> 
> So how exactly does cygwin build itself? does make first output builds to a
> temp directory and then
> you run install to update your cygwin installation?  Does the "snapshot" of
> cygwin come with all the
> configure,makefile,source, etc needed to build it? I'm wondering because I
> had the impression that
> the snapshots give you only what you choose and you might not realize you're
> missing something until
> after you try to build, or do they package/group the snapshots up pretty
> good to make it simpler for us?
> 
> Only other thing is how do you backout a bad install? does the "install.exe"
> utility have a way to "uninstall"?
> 
> Sorry for the sudden burst of questions.
> 
> thanks,
> /dave
> 
> 
> -----Original Message-----
> From: Jim Ingham <jingham@apple.com>
> To: Dave Arnold <avr_fan@mailandnews.com>; Dave Arnold
> <avr_fan@nettaxi.com>; insight@sourceware.cygnus.com
> <insight@sourceware.cygnus.com>
> Date: Wednesday, July 05, 2000 6:19 PM
> Subject: Re: Does Insight Actually work or is it just an alpha orpre-alpha?
> 
> 
>> Also sprach Dave Arnold:
>> 
>>> hi Jim,
>>> 
>>> 1.
>>> I did use "-g" option for gcc.
>> 
>> Yeah, sorry to have to ask, but you never know...
>> 
>>> 
>>> 2. Version information:
>>> 
>>> BASH.EXE-2.04$ bash --version
>>> GNU bash, version 2.04.0(1)-release (i586-pc-cygwin)
>>> Copyright 1999 Free Software Foundation, Inc.
>>> 
>>> BASH.EXE-2.04$ gcc -v
>>> Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/2.95.2/specs
>>> gcc version 2.95.2 19991024 (release-2)
>>> 
>>> BASH.EXE-2.04$ gdb -v
>>> GNU gdb 5.0
>>> Copyright 2000 Free Software Foundation, Inc.
>>> GDB is free software, covered by the GNU General Public License, and you
> are
>>> welcome to change it and/or distribute copies of it under certain
>>> conditions.
>>> Type "show copying" to see the conditions.
>>> There is absolutely no warranty for GDB.  Type "show warranty" for
> details.
>>> This GDB was configured as "i686-pc-cygwin".
>>> BASH.EXE-2.04$
>>> 
>>> 3. Other worse problems occur using gdb -nw
>>> like hanging bash window, can't find libccrt0.c, can't find source, etc.
>>> 
>>> BASH.EXE-2.04$ gdb -nw load
>>> GNU gdb 5.0
>>> Copyright 2000 Free Software Foundation, Inc.
>>> GDB is free software, covered by the GNU General Public License, and you
> are
>>> welcome to change it and/or distribute copies of it under certain
>>> conditions.
>>> Type "show copying" to see the conditions.
>>> There is absolutely no warranty for GDB.  Type "show warranty" for
> details.
>>> This GDB was configured as "i686-pc-cygwin"...
>>> (gdb) list
>>> 1       /cygnus/netrel/src/cygwin-1.1.2/winsup/cygwin/libccrt0.cc: No
> such
>>> file
>>> or directory.
>>> (gdb)
>>> 
>>> (gdb) list load5.c:1
>>> No source file named load5.c.
>>> (gdb) list load5.c:main
>>> No source file named load5.c.
>>> (gdb) list
>>> 1       in /cygnus/netrel/src/cygwin-1.1.2/winsup/cygwin/libccrt0.cc
>>> (gdb)
>>> 
>> 
>> You do have one screwed up version of gdb, that is for sure...  There may
> be
>> some conflict between the version of cygwin you are using and the one that
>> the gdb you got was build with?  I think that the cygcheck command will
> tell
>> you your cygwin version.  Don't know how you find out the version gdb was
>> built against.
>> 
>> If you can't sort this out, you will probably need to have a stab at
>> building it yourself.  For this you will need to get a recent (snapshot)
>> version of Cygwin, and the CVS version of insight (there were some problems
>> with the gdb 5.0 release vrs. Cygwin that you can find discussed on the
>> archives of this mailing list.)
>> 
>> Then configure & make should give you what you want.  Slight emphasis on
> the
>> "should".
>> 
>> If you have more questions on the process of building, you should probably
>> address them to the cygwin mailing list (also on the sourceware.cygnus.com
>> site), not because we want to palm you off on someone else, but because
> that
>> is where the real experts on cygwin hide out...
>> 
>>> 
>>> THANKS FOR TAKING THE TIME TO HELP,
>> 
>> Not a prob...
>> 
>> Jim
>> 
>>> /Dave
>>> 
>>> -----Original Message-----
>>> From: Jim Ingham <jingham@apple.com>
>>> To: Dave Arnold <avr_fan@mailandnews.com>; insight@sourceware.cygnus.com
>>> <insight@sourceware.cygnus.com>
>>> Date: Wednesday, July 05, 2000 11:18 AM
>>> Subject: Re: Does Insight Actually work or is it just an alpha
> orpre-alpha?
>>> 
>>> 
>>>> Also sprach Dave Arnold:
>>>> 
>>>> I have not tried Insight on Win95, only on NT, but some of Cygnus's
>>>> customers use it on 95, and it does seem to work.  Couple of questions
> for
>>>> you come to mind:
>>>> 
>>>> 1) How did you compile the code that you are trying to debug (presumably
>>>> gcc, but looks like not "-g"?)
>>>> 
>>>> 2) What version of Cygwin are you using?
>>>> 
>>>> 3) If you run "gdb -nw" do you get the same problems (does "list" show
> you
>>>> sources, do breakpoints work, etc...)
>>>> 
>>>> Jim
>>>> 
>>>>> has anyone actually been able to use Insight to do debugging?
>>>>> 
>>>>> I have downloaded the latest and greatest pre-built version for
> windows95
>>>>> and haven't been able to use it at all.  Nice GUI but useless because
>>>>> 
>>>>> 1. Breakpoints don't work
>>>>> 2. Can't load .exe's for debugging
>>>>> 3. Show's all source in Assembly.
>>>>> 4. Execution stops with error 193:
>>>>> 5. Single stepping doesn't work
>>>>> 
>>>>> Let me elaborate:
>>>>> 
>>>>> 1. Breakpoints don't work:
>>>>> 
>>>>> run gdb from a bash prompt with executable name as argument:
>>> BASH.EXE-2.04$
>>>>> gdb foo
>>>>> ...Insight gui pops up showing source code foo.c  ... set a break point
>>> in
>>>>> main at the first
>>>>> instruction,...click run, then nothing happens, execution doesn't stop
> at
>>>>> the breakpoint,
>>>>> focus moves to last line of main() being highlighted and the red
>>> breakpoint
>>>>> marker there being
>>>>> on.
>>>>> 
>>>>> 2. Can't load .exe's for debugging:
>>>>> ...run gdb like so: BASH.EXE-2.04$ gdb
>>>>> ...gui pops up...from file menu choose Open...browse to and choose an
>>>>> executable to debug...
>>>>> source is all displayed in assembly, cannot switch view to 'source' the
>>> file
>>>>> list at bottom
>>>>> of the window has bunch of files not associated with your program
>>>>> like...libccrt0.cc, mount.h, _ansi.h...
>>>>> and so on.  Execution will stop at a breakpoint, but when trying to
>>> single
>>>>> step, program seems to
>>>>> run to completion and doesn't stop at the next instruction.
>>>>> 
>>>>> 3. Source code in Assembly:
>>>>> ...when loading .exe's from commandline like so: gdb foo  source code
> is
>>>>> shown C but when loading
>>>>> from file->open menu only viewable in assembly.
>>>>> 
>>>>> 4. Execution stops with error 193:
>>>>> load an executable into gdb for debugging,
>>>>> open the console view
>>>>> (gdb) file foo
>>>>> (gdb) break main
>>>>> Breakpoint 3 at 0x2704: file foo.c, line 50.
>>>>> (gdb) r
>>>>> Starting program: /lab5/foo model1
>>>>> Error: Error creating process /lab5/foo , (error 193)
>>>>> 
>>>>> 
>>>>> 5. Single stepping doesn't work:
>>>>> 
>>>>> ...Same as above, can't step into a program. Have to set a breakpoint
>>> first
>>>>> I assume and then
>>>>> run...but I think this is just the way gdb works right? In order to
> step
>>> you
>>>>> have to first 'run' the program.
>>>>> but would be nice if you could step into a program without having to
> set
>>> any
>>>>> breakpoints.
>>>>> Sometimes what happens is the execution breaks in one of the cygwin
> files
>>>>> and Insight window is
>>>>> showing source like this:
>>>>> 
>>>>> - 0x40374f <cygwin_crt0_common(int (*)(int, char **, char **))+47>:
>>>>> - 0x403754 <cygwin_crt0_common(int (*)(int, char **, char **))+52>:
>>>>> 
>>>>> 
>>>>> I would really like to use Insight to do debugging but so far it's
>>> useless
>>>>> to me besides having a nice
>>>>> GUI.  Can anyone give me any suggestions to resolve these issues?
>>> Initially
>>>>> I was very excited to see
>>>>> such a great looking front end but that is starting to fade unless I
>>> figure
>>>>> out how to make this thing work.
>>>>> The online help is so minimal, doesn't help much.
>>>>> 
>>>>> /dAVe
>>>>> 
>>>>> 
>>>>> 
>>>> 
>>>> --
>>>> Jim Ingham                                 jingham@apple.com
>>>> Apple Computer
>>>> 
>>> 
>> 
>> --
>> Jim Ingham                                 jingham@apple.com
>> Apple Computer
>> 
> 

-- 
Jim Ingham                                 jingham@apple.com
Apple Computer