Hi genodians,
I tried to proceed with Sebastian's suggestions.
When I fetched dde_rump from [ https://github.com/justincormack/netbsd-src ] while preparing port for riscv,  I received an error message as patch could not be applied.
Here is the error message:
dde_rump  download https://github.com/justincormack/netbsd-src
dde_rump  git Cloning into 'src/lib/dde_rump'...
Updating files: 100% (31930/31930), done./31930)
dde_rump  update src/lib/dde_rump
dde_rump  download https://github.com/justincormack/netbsd-src/trunk/src/sys/arch
dde_rump  download https://github.com/justincormack/netbsd-src/trunk/src/common/lib/libc/arch/riscv/atomic
dde_rump  apply patches/rump.patch
1 out of 1 hunk FAILED -- saving rejects to file src/lib/dde_rump/src/sys/sys/module.h.rej
make[2]: *** [/genode/tool/ports/mk/install.mk:128: phony/patches/patches/rump.patch] Error 1
make[1]: *** [/genode/tool/ports/mk/prepare_single_port.mk:43: _install_in_port_dir] Error 2
make: *** [tool/ports/prepare_port:47: dde_rump] Error 2


I didn't know, if am supposed to modify the patch file or the file (module.h). So I decided to move on with the previous repo (https://github.com/ssumpf/rump.git) and I manually added the missing header files in [ /genode/contrib/dde_rump-<hash>/src/lib/dde_rump/src/sys/sys ] that were required to build sculpt for virt riscv. The fatal error problem was gone but now while building sculpt I am getting the following error.

        COMPILE  vnode_if.o
    COMPILE  xlat_mbr_fstype.o
make[7]: *** No rule to make target 'atomic_add_16.S', needed by 'atomic_add_16.o'.  Stop.
make[6]: *** [var/libdeps:184: rump.lib] Error 2
make[5]: *** [Makefile:336: gen_deps_and_build_targets] Error 2
make[4]: *** [/genode/tool/depot/mk/build_bin_archive:208: /genode/depot/genodelabs/bin/riscv/rump/2023-03-28-b.build/bin] Error 1
make[3]: *** [/genode/depot/var/build.mk:264: genodelabs/bin/riscv/rump/2023-03-28-b] Error 2
make[2]: *** [/genode/tool/depot/build:136: execute_generated_build_mk_file] Error 2
make[1]: *** [/genode/tool/depot/create:59: build] Error 2
make[1]: Leaving directory '/genode/build/riscv'
child process exited abnormally


I have found out that, there is no 'atomic_add_16.S' in (https://github.com/justincormack/netbsd-src/trunk/src/common/lib/libc/arch/riscv/atomic)
but its there for aarch64 which is not working for me as I am working on riscv.

These were the two problems I have faced, please give some comments on it and kindly suggest something through which I can proceed further.

thanks & regards 
Pranab

On Fri, Mar 17, 2023 at 1:22 PM Sebastian Sumpf <Sebastian.Sumpf@genode-labs.com> wrote:
On 3/15/23 15:23, Pranab Kumar Rout cs21m045 wrote:
> Hi all,
> As I see in [1], when we prepare port for dde_rump, it fetches from [2] and not
> from [3]. And I found that the "src/sys/sys/common_ansi.h" is not present in
> [2]. May be for this reason while building sculpt the error came up. Also in [1]
> I can see that its fetching libc files from
> "/src/common/lib/libc/arch/aarch64/atomic" and not from
> "/src/common/lib/libc/arch/riscv/atomic". Is it okay or should I update this in
> [1] ?

Yes.

Cheers,

Sebastian

> [1] repos/dde_rump/ports/dde_rump.port
> <https://github.com/genodelabs/genode/blob/master/repos/dde_rump/ports/dde_rump.port>
> [2] https://github.com/ssumpf/rump.git <https://github.com/ssumpf/rump.git>
> [3] https://github.com/justincormack/netbsd-src
> <https://github.com/justincormack/netbsd-src>
>
> Were you suggesting to update this thing ? Please have a look and suggest steps
> I need to take.
> I think this must be the reason for that fatal error. Kindly acknowledge.
>
> Regards,
> Pranab
>
> On Mon, Mar 13, 2023 at 4:07 PM Sebastian Sumpf <Sebastian.Sumpf@genode-labs.com
> <mailto:Sebastian.Sumpf@genode-labs.com>> wrote:
>
>     Hello Pranab,
>
>     On 3/13/23 07:47, Pranab Kumar Rout cs21m045 wrote:
>      > Hello genodians,
>      > While building sculpt for virt_qemu_riscv, I found that dde_rump port is not
>      > prepared for RISCV. Taking help from the community, I used the same
>     approach as
>      > for arm_v8a (aarch64) as found under
>     "repos/dde_rump/lib/mk/spec/arm_64/*" just
>      > for "spec/riscv" in order to enable rump support for RISC-V.
>      > I am getting this error. If you find it familiar, kindly help me
>      > checking library dependencies...
>      >    Library ldso_so_support
>      >      COMPILE  so_support.o
>      >      MERGE    ldso_so_support.lib.a
>      >    Library ld
>      >      CONVERT  ld.symbols.s
>      >      ASSEMBLE ld.symbols.o
>      >      MERGE ld.abi.so <http://ld.abi.so> <http://ld.abi.so <http://ld.abi.so>>
>      >    Library base
>      >      MERGE    base.lib.a
>      >    Library block_session
>      >      MERGE    block_session.lib.a
>      >    Library config
>      >      MERGE    config.lib.a
>      >    Library file_system
>      >      MERGE    file_system.lib.a
>      >    Library file_system_session
>      >      MERGE    file_system_session.lib.a
>      >    Library os
>      >      MERGE    os.lib.a
>      >    Library rump_include
>      >      MERGE    rump_include.lib.a
>      >    Library rump
>      >      COMPILE  __main.o
>      > In file included from
>      >
>     /genode/depot/genodelabs/src/rump/2023-03-07-b/src/lib/dde_rump/src/sys/sys/types.h:47,
>      >                   from
>      >
>     /genode/depot/genodelabs/src/rump/2023-03-07-b/src/lib/dde_rump/src/sys/lib/libkern/__main.c:33:
>      >
>     /genode/depot/genodelabs/bin/riscv/rump/2023-03-07-b.build/var/libcache/rump/include/machine/ansi.h:3:10: fatal error: sys/common_ansi.h: No such file or directory
>      >      3 | #include <sys/common_ansi.h>
>      >        |  ^~~~~~~~~~~~~~~~~~~
>
>     When looking at "contrib/dde_rump-<hash>/src/lib/dde_rump_aarch64_backport" I
>     can see that only "src/sys/arch" [1] is checked out from [2] while
>     "common_ansi.h" resides under "src/sys/sys/common_ansi.h" [3]. Therefore, you
>     could adjust [1] to also checkout "src/sys" or "src/sys/sys" and update the
>     "INC_DIR" and/or symlinks under "dde_rump/lib/mk/spec/riscv" accordingly.
>
>     [1] repos/dde_rump/ports/dde_rump.port
>     [2] https://github.com/justincormack/netbsd-src
>     <https://github.com/justincormack/netbsd-src>
>     [3]
>     https://github.com/justincormack/netbsd-src/blob/master/src/sys/sys/common_ansi.h <https://github.com/justincormack/netbsd-src/blob/master/src/sys/sys/common_ansi.h>
>
>     *Note: When adjusting "dde_rump.port" you need to execute
>
>     ! ./tool/ports/update_hash dde_rump
>
>     in order to create a new hash for the port.
>
>     Regards,
>
>     Sebastian
>
>     --
>     Sebastian Sumpf
>     Genode Labs
>
>     http://www.genode-labs.com <http://www.genode-labs.com> · http://genode.org
>     <http://genode.org>
>
>     Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
>     Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth
>
>
>
>
>
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--
Sebastian Sumpf
Genode Labs

http://www.genode-labs.com · http://genode.org

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