[Vm-dev] Can I use GDB with SqueakVM ?

[Mariano Martinez Peck]

Thanks to everybody. At the end it was the problem Michael said.
/usr/local/bin/squeak was just a script but the executable was in

/usr/local/lib/squeak/3.11.13-2135/squeakvm

Now it works perfect. I can gdb the Squeak VM!!

Thanks a lot.

Mariano

On Sun, Mar 28, 2010 at 10:04 PM, Eliot Miranda <eliot.miranda at gmail.com>wrote:

>
>
>
> On Sun, Mar 28, 2010 at 3:59 PM, Michael van der Gulik <mikevdg at gmail.com>wrote:
>
>>
>> On Mon, Mar 29, 2010 at 9:10 AM, Mariano Martinez Peck
>> <marianopeck at gmail.com> wrote:
>> >
>> >
>> > On Sat, Mar 27, 2010 at 5:57 PM, Eliot Miranda <eliot.miranda at gmail.com>
>> wrote:
>> >>
>> >>
>> >> Hi Mario,
>> >>     first you want to compile with debug symbols and perhaps with no
>> optimization.  Second it looks like you need to link with the pthreads
>> library, not juts compile. So you can try e.g.
>> >> platforms/unix/configure CFLAGS="-g3 -pthread" LIBS=-lpthread
>> >> FWIW I routinely use gdb on Mac OS X, linux and windows to debug the
>> Teleplace Cog vm.
>> >
>> > Thanks Eliot. I tried what you said, but I got another problem now. I
>> configure the VM, with this:
>> >
>> > ../unix/cmake/configure --CFLAGS="-g3 -pthread" --LIBS=-lpthread
>> >
>> > Then I make and make install. No problems. SqueakVM works ok and I can
>> open my images.
>> >
>> > The problem is with gdb. I tried this:
>> >
>> > ubuntu at ubuntu-desktop:~/Pharo/vm/Squeak-3.11.3.2135-pharo-src/build$
>> gdb squeak
>> > GNU gdb (GDB) 7.0-ubuntu
>> > Copyright (C) 2009 Free Software Foundation, Inc.
>> > License GPLv3+: GNU GPL version 3 or later <
>> http://gnu.org/licenses/gpl.html>
>> > This is free software: you are free to change and redistribute it.
>> > There is NO WARRANTY, to the extent permitted by law.  Type "show
>> copying"
>> > and "show warranty" for details.
>> > This GDB was configured as "i486-linux-gnu".
>> > For bug reporting instructions, please see:
>> > <http://www.gnu.org/software/gdb/bugs/>...
>> > "/home/ubuntu/Pharo/vm/Squeak-3.11.3.2135-pharo-src/build/squeak": not
>> in executable format: File format not recognized
>> > (gdb)
>> >
>> >
>> > And the same happens with gdb ./squeak or gdb /usr/local/bin/squeak
>> etc...
>> >
>> > But squeak IS executable:
>> >
>> > ubuntu at ubuntu-desktop:~/Pharo/vm/Squeak-3.11.3.2135-pharo-src/build$ ls
>> -la /usr/local/bin/squeak
>> > -rwxr-xr-x 1 root root 1791 2010-03-28 21:57 /usr/local/bin/squeak
>> >
>> >
>> > So...any ideas what can be the problem ?
>>
>> Try opening "squeak" in a text editor. It could be a script that
>> starts the real VM executable which might be elsewhere.
>>
>
> Doh!  Try myvm/lib/squeak/3.9-7/squeak
>
>
>
>>
>> Also, a tip: if you're making VMs, it's better not to install them in
>> /usr/local until you're happy with them being stable and working. Use:
>>
>> > ../unix/cmake/configure --CFLAGS="-g3 -pthread" --LIBS=-lpthread
>> --prefix=~/Pharo/myvm (or something).
>> > nice make install
>>
>> (I assume the configure script takes --prefix like GNU autoconf does?)
>>
>> Also, if you just want to see how the interpreter works, you can run
>> it inside Squeak:
>>
>>
>> http://n4.nabble.com/Simulate-3-4-with-InterpreterSimulator-td1678060.html#a1694237
>>
>> Gulik.
>>
>> --
>> http://gulik.pbwiki.com/
>>
>
>
>
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