gdb 9.2 won't build

gdb 9.2 won't build

[Doug Abbott]

Hi all,

I'm trying to build gdb 9.2 natively on a Linux x86_64 machine, a guest 
running under VirtualBox on Windows 10. The linker is throwing a number 
of "undefined reference" symbols like tputs and tgetflag which appear to 
have something to do with ncurses and/or termcap.

I tried the configure command shown in the wiki under building natively, 
adding --disable-tui because that fixed a different problem. I'm 
guessing I'm missing a library, but which one?

The reason I'm going through this exercise is that gdb 7.6 that comes 
with CentOS 7 won't read the python support functions for KGDB. It 
complains about "missing attribute COMPLETE_EXPRESSION".

TIA for any help you can offer.

Doug

-- 
Doug Abbott
Principal Consultant, Intellimetrix
Linux for the Real World
575-590-2788

www.intellimetrix.us

Re: gdb 9.2 won't build

[Joel Brobecker]

> I'm trying to build gdb 9.2 natively on a Linux x86_64 machine, a guest
> running under VirtualBox on Windows 10. The linker is throwing a number of
> "undefined reference" symbols like tputs and tgetflag which appear to have
> something to do with ncurses and/or termcap.
> 
> I tried the configure command shown in the wiki under building natively,
> adding --disable-tui because that fixed a different problem. I'm guessing
> I'm missing a library, but which one?
> 
> The reason I'm going through this exercise is that gdb 7.6 that comes with
> CentOS 7 won't read the python support functions for KGDB. It complains
> about "missing attribute COMPLETE_EXPRESSION".

Try maybe forcing the use of ncuses by configuring GDB --with-curses?
You might get an error if you don't have the ncurses headers installed;
if that happens, install the ncurses dev package, and then try again.

-- 
Joel

Re: gdb 9.2 won't build

[Keith Seitz]

On 9/8/20 9:59 AM, Doug Abbott wrote:

> I tried the configure command shown in the wiki under building
> natively, adding --disable-tui because that fixed a different
> problem. I'm guessing I'm missing a library, but which one?

Yes, you are definitely missing build dependencies. Since you're on
CentOS 7, try running:

  # yum-builddep gdb

> The reason I'm going through this exercise is that gdb 7.6 that comes
> with CentOS 7 won't read the python support functions for KGDB. It
> complains about "missing attribute COMPLETE_EXPRESSION".

An alternative is to try a DTS (developer toolset) release:

  # yum install devtoolset-9-gdb

DTS9 comes with GDB 8.3. DTS10 (when available) will be based on GDB 9.2.

I am not very familiar with how the CentOS 7 software ecosystem works,
so if bad comes to worse, you can attempt to manually install a build
from the build system:
 
https://cbs.centos.org/koji/packageinfo?packageID=7466

I'm sure there's probably some repo for that, but since I don't use CentOS 7,
I don't know exactly what it is. Maybe
https://wiki.centos.org/AdditionalResources/Repositories/SCL ?

Keith

Re: gdb 9.2 won't build

[Doug Abbott]

Thanks for the hint Joel. I had to install the ncurses-devel and texinfo 
packages and then it built.

Doug

On 9/8/2020 11:10 AM, Joel Brobecker wrote:
>> I'm trying to build gdb 9.2 natively on a Linux x86_64 machine, a guest
>> running under VirtualBox on Windows 10. The linker is throwing a number of
>> "undefined reference" symbols like tputs and tgetflag which appear to have
>> something to do with ncurses and/or termcap.
>>
>> I tried the configure command shown in the wiki under building natively,
>> adding --disable-tui because that fixed a different problem. I'm guessing
>> I'm missing a library, but which one?
>>
>> The reason I'm going through this exercise is that gdb 7.6 that comes with
>> CentOS 7 won't read the python support functions for KGDB. It complains
>> about "missing attribute COMPLETE_EXPRESSION".
> Try maybe forcing the use of ncuses by configuring GDB --with-curses?
> You might get an error if you don't have the ncurses headers installed;
> if that happens, install the ncurses dev package, and then try again.
>

-- 
Doug Abbott
Principal Consultant, Intellimetrix
Linux for the Real World
575-590-2788

www.intellimetrix.us