Re: update to insight?

[Keith Seitz <keiths@redhat.com>]

On 02/10/2013 02:56 PM, Brian Phillips wrote:

> Please bear with me - in the past, I've dabbled with C and assembly, but
> that was long ago, and I never really had to mess with configuring much
> (it was a hobby).  But now, I want to put more effort into learning
> assembly (still as a hobby, though).

No problem -- I haven't actively looked at assembly much in the last 
decade, either. All that Java got in the way. [I worked on Eclipse for 
several years. After that, I wrote JDWP/JVMTI implementations for 
gcj/gij and classpath.]

> I don't know what you mean by 'configure triple'.  I'm using a PKGBUILD
> at https://aur.archlinux.org/packages/insight/ - you can view the
> PKGBUILD from the web page, if you like.  If you look there, you might
> also look at the comments at the bottom of the page, as well as this
> thread, started by me in the forums:
> https://bbs.archlinux.org/viewtopic.php?id=157819

The configure triple is what gdb displays when you type "show version". 
This is what you pass to configure using the --host, --target, --build 
arguments. [If you don't specify anything, the build uses config.guess 
to "guess" --build=--target=--host.

For example, on my Fedora box, my configure triple is 
"x86_64-unknown-linux-gnu" (as reported by src/config.guess). What does 
config.guess return for you?

> AFAICT, There seems to be a bug in gcc-4.7.2 with a "struct siginfo"
> that should be "struct siginfo_t", per this page:
> http://sourceware.org/ml/libc-alpha/2012-03/msg00414.html
>
> At any rate, other users get stuck with errors like this:
> "/home/briphi/builds/gcc46/src/gcc-4.6.3/libgcc/../gcc/config/i386/linux-unwind.h: In function ‘x86_fallback_frame_state’:
> /home/briphi/builds/gcc46/src/gcc-4.6.3/libgcc/../gcc/config/i386/linux-unwind.h:138:17: error: field ‘info’ has incomplete type
> make[3]: *** [unwind-dw2.o] Error 1"

Hmmm... Where are these errors occurring? I don't even see these files 
in the build -- not in bfd, gdb, or insight.

> This applies to me in trying to build older versions of gcc (the snippet
> above applies to building gcc-4.6.3) and the same applies to configuring
> 'insight'


> With my limited knowledge and in using the PKGBUILD at
> aur.archlinux.org, I'm pretty much stuck to using the source provided in
> that script, which is 6.8.1a from sourceware.org.  I've tried to monkey
> with the source line here, adjusting the first md5sum as needed, but
> didn't get any where, due to the linux-unwind.h error above.
>
> I have a dual-boot system with Ubuntu 12.10. Would you mind explaining
> what I should do to build from source on Ubuntu?  So far, I've tried
> uncompressing the source, and compiling from an alternate directory
> using just "../src/configure", but that gave me the following errors:
>
> config.status: creating po/Makefile.in
> config.status: executing depfiles commands
> config.status: executing libtool commands
> config.status: executing default-1 commands
> config.status: executing bfd_stdint.h commands
> config.status: executing default commands
> make[3]: Leaving directory `/home/brian/builds/insight/bfd/po'
> make[3]: Entering directory `/home/brian/builds/insight/bfd/po'
> make[3]: Nothing to be done for `info'.
> make[3]: Leaving directory `/home/brian/builds/insight/bfd/po'
> make[3]: Entering directory `/home/brian/builds/insight/bfd'
> make[3]: Nothing to be done for `info-am'.
> make[3]: Leaving directory `/home/brian/builds/insight/bfd'
> make[2]: *** [info-recursive] Error 1
> make[2]: Leaving directory `/home/brian/builds/insight/bfd'
> make[1]: *** [all-bfd] Error 2
> make[1]: Leaving directory `/home/brian/builds/insight'
> make: *** [all] Error 2

There's not enough context here. I don't see the actual error. In any 
case, you should be able to build on Ubuntu -- that is one of the test 
platforms that I test.

Caveat: When I say you *should*, unfortunately, I stretch the truth a 
tiny bit. You should be able to checkout CVS HEAD insight and build that 
without problems (I have done that here). What you cannot do (without 
patches from me) is build insight without using the Tcl, Tk, Itcl, and 
Iwidgets from the repository (which is Tcl/Tk 8.4) *and* a 64-bit OS.

[WARNING: The default fonts for Insight with repository tcl et al are 
HORRIBLE. Click Preferences->Global... and change them! "clean" looks 
good to me.]

I have patches to make this work using your system Tcl, Tk, Itcl, but I 
haven't found Itk and Iwidgets in anywhere. [Itcl is included with Tcl, 
but Itk is not included with Tk.] So for now, use the repository Tcl, 
Tk, Itcl/Itk/Iwidgets. There are a bunch of warnings, but those can be 
ignored AFAIK.

If you want python support (recommended, especially for C++ 
pretty-printers), you must install the python2 package. Otherwise, 
base-devel contained pretty much everything I needed to build gdb/insight.

> And regarding building gbd, will I be okay doing this in a /home/user
> directory?  I don't want to screw up my Ubuntu (or Arch) install, so I'm
> a bit hesitant.

No problems. Just give configure a "--prefix" option and it will install 
to that location, e.g., --prefix=/home/me/insight-built will install 
everything to /home/me/insight-built without messing with your system 
directories.

Keith