Building Gdbserver is failing for Riscv Arch.

Building Gdbserver is failing for Riscv Arch.

[Ghalib Khan]

Hello,

         While building an Native GDBserver for RISCV Arch. with the following steps,

  1.  Downloaded GDB sources from https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz
  2.  untar gdb-9.2.tar.gz<https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz>
  3.  cd gdb
  4.  ./configure --prefix=$PWD/install --enable-gdbserver
  5.  make

Here i have Hit with following Error,

checking whether gdbserver is supported on this host... no
configure: error: Automatic gdbserver build is not supported for this configuration
Makefile:9533: recipe for target 'configure-gdb' failed
make[1]: *** [configure-gdb] Error 1
make[1]: Leaving directory '/home/khan/khan/riscv-tool/gdb-9.2/build'
Makefile:851: recipe for target 'all' failed
make: *** [all] Error 2


  I heard that GDBSERVER is now Ported to RISCV but still it's not working, if you known anything to build GDBserver for RISCV please let me know.

Thanks
Ghalib khan c

Re: Building Gdbserver is failing for Riscv Arch.

[Jan Vrany]

On Tue, 2020-08-11 at 16:38 +0000, Ghalib Khan wrote:
> Hello,
> 
>          While building an Native GDBserver for RISCV Arch. with the following steps,
> 
>   1.  Downloaded GDB sources from https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz
>   2.  untar gdb-9.2.tar.gz<https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz>
>   3.  cd gdb
>   4.  ./configure --prefix=$PWD/install --enable-gdbserver
>   5.  make
> 
> Here i have Hit with following Error,

I think gdbserver for RISC-V came after GDB 9. Try GDB master
(git://sourceware.org/git/binutils-gdb.git) - that should work.

It does work for me. And you don't need to pass `--enable-gdbserver`,
it is build automatically. 

HTH, Jan

Re: Building Gdbserver is failing for Riscv Arch.

[Ghalib Khan]

I have tried with master sources, with that gdbserver was build successfully, but while using gdbserver following Issue i have hit.

warning: while parsing target description (at line 4): Target description specified unknown architecture "riscv:rv64id"
warning: Could not load XML target description; ignoring
Remote register badly formatted: T0502:50fcffff3f000000;20:005ffef73f000000;thread:p817f.817f;core:2;
here: 3f000000;20:005ffef73f000000;thread:p817f.817f;core:2;
(gdb)

________________________________
From: Jan Vrany <jan.vrany@fit.cvut.cz>
Sent: 12 August 2020 12:23 AM
To: Ghalib Khan <ghalib.khan@exaleapsemi.com>; gdb@sourceware.org <gdb@sourceware.org>
Subject: Re: Building Gdbserver is failing for Riscv Arch.

On Tue, 2020-08-11 at 16:38 +0000, Ghalib Khan wrote:
> Hello,
>
>          While building an Native GDBserver for RISCV Arch. with the following steps,
>
>   1.  Downloaded GDB sources from https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz
>   2.  untar gdb-9.2.tar.gz<https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz>
>   3.  cd gdb
>   4.  ./configure --prefix=$PWD/install --enable-gdbserver
>   5.  make
>
> Here i have Hit with following Error,

I think gdbserver for RISC-V came after GDB 9. Try GDB master
(git://sourceware.org/git/binutils-gdb.git) - that should work.

It does work for me. And you don't need to pass `--enable-gdbserver`,
it is build automatically.

HTH, Jan

[EXT]

Re: Building Gdbserver is failing for Riscv Arch.

[Andrew Burgess]

* Ghalib Khan <ghalib.khan@exaleapsemi.com> [2020-08-12 08:23:01 +0000]:

> I have tried with master sources, with that gdbserver was build successfully, but while using gdbserver following Issue i have hit.
> 
> warning: while parsing target description (at line 4): Target description specified unknown architecture "riscv:rv64id"
> warning: Could not load XML target description; ignoring
> Remote register badly formatted: T0502:50fcffff3f000000;20:005ffef73f000000;thread:p817f.817f;core:2;
> here: 3f000000;20:005ffef73f000000;thread:p817f.817f;core:2;
> (gdb)

Which version of GDB were you using when you saw this error?  Was it
also GDB built from current master, or was this an older version of
GDB?

Thanks,
Andrew



> 
> ________________________________
> From: Jan Vrany <jan.vrany@fit.cvut.cz>
> Sent: 12 August 2020 12:23 AM
> To: Ghalib Khan <ghalib.khan@exaleapsemi.com>; gdb@sourceware.org <gdb@sourceware.org>
> Subject: Re: Building Gdbserver is failing for Riscv Arch.
> 
> On Tue, 2020-08-11 at 16:38 +0000, Ghalib Khan wrote:
> > Hello,
> >
> >          While building an Native GDBserver for RISCV Arch. with the following steps,
> >
> >   1.  Downloaded GDB sources from https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz
> >   2.  untar gdb-9.2.tar.gz<https://ftp.gnu.org/gnu/gdb/gdb-9.2.tar.gz>
> >   3.  cd gdb
> >   4.  ./configure --prefix=$PWD/install --enable-gdbserver
> >   5.  make
> >
> > Here i have Hit with following Error,
> 
> I think gdbserver for RISC-V came after GDB 9. Try GDB master
> (git://sourceware.org/git/binutils-gdb.git) - that should work.
> 
> It does work for me. And you don't need to pass `--enable-gdbserver`,
> it is build automatically.
> 
> HTH, Jan
> 
> [EXT]