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January 2018

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ngircd 24 for VoCore2 - mipsel/OpenWRT/uclibc
by Götz Hoffart 28 Jan '18

28 Jan '18

Hi, ngircd 24 runs on the VoCore2 mini computer (mipsel/OpenWRT/uclibc): http://vocore.io/v2.html <http://vocore.io/v2.html> Build system is Ubuntu 14.04 LTS x86_64 for cross-compiling, with the VoCore2/OpenWRT tools installed from <http://vocore.io/v2u.html <http://vocore.io/v2u.html>> -> Downloads -> Toolchain: Download (Ubuntu 14.04 x64). 1) Unpack the toolchain I unpacked these to ~/vocore2 and removed the "outer-shell" directories. 2) Prepare cross-build $ PATH=$PATH:/home/goetz/vocore2/bin $ export PATH $ STAGING_DIR=/home/goetz/vocore2/ $ export STAGING_DIR 3) Fix "resolve.c" Otherwise we’ll run into [1]: $ diff ngircd-24/src/ngircd/resolve-orig.c ngircd-24/src/ngircd/resolve.c 112,113d111 < #if !defined(HAVE_GETADDRINFO) || !defined(HAVE_GETNAMEINFO) < #if !defined(WANT_IPV6) && defined(h_errno) 130,131d127 < #endif < #endif Basically, we need to “enforce” the definition of Get_Error. Without removing the conditionals, it will be missing and the cross-build will fail. 3) Configure for cross-build $ ./configure --build=mipsel-unknown-linux-gnu --host=mipsel-openwrt-linux-uclibc --build=x86_64-unknown-linux-gnu Check that the line checking whether we are cross compiling... yes is there. The summary should look similar to: ngIRCd 24 has been configured with the following options: Host: mipsel-openwrt-linux-uclibc Compiler: mipsel-openwrt-linux-uclibc-gcc -std=gnu99 Compiler flags: -g -O2 -pipe -W -Wall -Wpointer-arith -Wstrict-prototypes -DSYSCONFDIR='"$(sysconfdir)"' -DDOCDIR='"$(docdir)"' 'ngircd' binary: /usr/local/sbin Configuration file: /usr/local/etc Manual pages: /usr/local/share/man Documentation: /usr/local/share/doc/ngircd Syslog support: yes Enable debug code: no zlib compression: no IRC sniffer: no Use TCP Wrappers: no Strict RFC mode: no IDENT support: no IRC+ protocol: yes IPv6 protocol: no I/O backend: epoll(), select() PAM support: no SSL support: no libiconv support: no 4) Build ngircd from source $ make CC=mipsel-openwrt-linux-uclibc-gcc LD=mipsel-openwrt-linux-uclibc-ld 5) Check correct binary type $ file src/ngircd/ngircd src/ngircd/ngircd: ELF 32-bit LSB executable, MIPS, MIPS32 rel2 version 1, dynamically linked (uses shared libs), not stripped Looking good! Now you can copy over the binary to your VoCore2 and run it. [1]: Error with unpatched resolve.c: resolve.c: In function 'ForwardLookup': resolve.c:285:11: warning: implicit declaration of function 'Get_Error' [-Wimplicit-function-declaration] hostname, Get_Error(h_errno)); ^ resolve.c:236:56: warning: unused parameter 'af' [-Wunused-parameter] ForwardLookup(const char *hostname, array *IpAddr, int af) ^ CCLD ngircd client.o: In function `Client_Init': ngircd-24/src/ngircd/client.c:94: warning: gethostbyname is obsolescent, use getnameinfo() instead. resolve.o: In function `ForwardLookup': ngircd-24/src/ngircd/resolve.c:284: undefined reference to `Get_Error' collect2: error: ld returned 1 exit status [2] Machine info: BusyBox v1.23.2 (2016-09-03 09:56:08 CST) built-in shell (ash) _______ ________ __ | |.-----.-----.-----.| | | |.----.| |_ | - || _ | -__| || | | || _|| _| |_______|| __|_____|__|__||________||__| |____| |__| W I R E L E S S F R E E D O M ----------------------------------------------------- CHAOS CALMER (Chaos Calmer, r49378) ----------------------------------------------------- * 1 1/2 oz Gin Shake with a glassful * 1/4 oz Triple Sec of broken ice and pour * 3/4 oz Lime Juice unstrained into a goblet. * 1 1/2 oz Orange Juice * 1 tsp. Grenadine Syrup ----------------------------------------------------- root@VoCore2:~# cat /proc/cpuinfo system type : MediaTek MT7628AN ver:1 eco:2 machine : VoCore2 processor : 0 cpu model : MIPS 24KEc V5.5 BogoMIPS : 385.84 wait instruction : yes microsecond timers : yes tlb_entries : 32 extra interrupt vector : yes hardware watchpoint : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0ffb, 0x0ffb] isa : mips1 mips2 mips32r1 mips32r2 ASEs implemented : mips16 dsp shadow register sets : 1 kscratch registers : 0 package : 0 core : 0 VCED exceptions : not available VCEI exceptions : not available root@VoCore2:~# free -m total used free shared buffers Mem: 126476 37180 89296 252 4524 -/+ buffers: 32656 93820 Swap: 0 0 0 root@VoCore2:~# uname -a Linux VoCore2 3.18.29 #22 Sun Oct 16 21:00:17 CST 2016 mips GNU/Linux root@VoCore2:~# ./ngircd -n […] [2803:4 0] No help text available, HELP command will be of limited use. [2803:4 0] No administrative information configured but required by RFC! [2803:5 0] ngIRCd 24-IRCPLUS+SYSLOG-mipsel/openwrt/linux-uclibc started. [2803:6 0] Using configuration file "/usr/local/etc/ngircd.conf" ... [2803:6 0] ServerUID must not be root(0), using "nobody" instead. [2803:6 0] Running as user nobody(65534), group nogroup(65534), with PID 2803. [2803:6 0] Not running with changed root directory. [2803:6 0] IO subsystem: epoll (hint size 100, initial maxfd 100, masterfd 3). [2803:6 0] Now listening on [0.0.0.0]:6667 (socket 6). Regards Götz -- http://www.3rz.org <http://www.3rz.org/>

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