Re: [gentoo-hardened] [musl] A bunch of new compatibles ebuilds for musl

[daggs <daggs@gmx.com>]

> Sent: Tuesday, December 23, 2014 at 5:32 PM
> From: veovis <veovis@kveer.fr>
> To: gentoo-hardened@lists.gentoo.org
> Subject: [gentoo-hardened] [musl] A bunch of new compatibles ebuilds for musl
>
> Hi everyone,
> 
> I recently saw the hardened musl project so I wanted to play with it for 
> my router.
> 
> My platform: CHOST="x86_64-gentoo-linux-musl"
> 
> There is a list of ebuilds taken from official portage I modified to 
> successfully compile for musl without breaking the compatibility with 
> other CHOST:
> * app-admin/logrotate
> * app-misc/screen
> * net-analyzer/snort
> * net-firewall/arptables
> * net-firewall/ebtables
> * net-libs/daq
> * net-libs/libnetfiler_queue
> * net-libs/libnfnetlink
> * net-libs/libtirpc
> * net-misc/dhcp
> * net-misc/iperf
> * net-misc/openvpn-2.3.6
> * sys-apps/hwinfo
> * sys-apps/iproute2
> * sys-apps/lm_sensors
> * sys-apps/watchdog
> * sys-boot/grub:2
> * sys-fs/btrfs-progs
> * sys-libs/musl
> * sys-process/lsof
> * www-servers/nginx
> 
> I have modified libtirpc so it is the default rpc include files provider 
> for musl. glibc and ulibc provides rpc, musl not.
> 
> With recent releases of binutils, musl fail to correctly find libraries 
> as described here: 
> http://git.musl-libc.org/cgit/musl/commit/src/ldso/dynlink.c?id=d8dc2b7c0289b12eeef4feff65e3c918111b0f55
> 
> This is the case with /usr/bin/man provided in the current experimental 
> stage3 where musl does not found libmandb or libman without the patch or 
> without defining LD_LIBRARY_PATH:
> localhost kveer # ldd /usr/bin/man
>          /lib/ld-musl-x86_64.so.1 (0x317c90c4000)
>          libmandb-2.6.6.so => /usr/lib/man-db/libmandb-2.6.6.so 
> (0x317c8ca1000)
>          libman-2.6.6.so => /usr/lib/man-db/libman-2.6.6.so 
> (0x317c8a68000)
>          libpipeline.so.1 => /usr/lib/libpipeline.so.1 (0x317c8858000)
>          libc.so => /lib/ld-musl-x86_64.so.1 (0x317c90c4000)
>          libgdbm.so.4 => /usr/lib/libgdbm.so.4 (0x317c864c000)
>          libz.so.1 => /lib/libz.so.1 (0x317c8434000)
> 
> Finally, musl does not come with a distinct ldd tool and is missing on 
> the stage3. As described by the musl maintener, ldd is available making 
> a symbolic link to the main lib:
> localhost kveer # ll /usr/bin/ldd
> lrwxrwxrwx 1 root root 24 Dec 23 16:11 /usr/bin/ldd -> 
> /lib/ld-musl-x86_64.so.1
> 
> For now, everything compiles fine but I don't know yet if all is working 
> properly.
> 
> I put everything on my personal repo here: 
> https://github.com/LordVeovis/gentoo (starting from 
> 176c1d4dd1f7064d0c378e6b37034f7b604e04a2) but let me know how you want 
> to proceed for all of this or if my way of patching is incorrect.
> 
> 

Greetings,

note that sys-boot/grub:2, net-libs/libtirpc and net-misc/dhcp have already bugs in bugzilla on this matter which either patches or explanations.
might worthwhile to check bugzilla before starting to work on a pkg.

Dagg.