This posting is purely for the/any list archives. Using mksh and its testsuite for spotting compiler bugs is nothing new, cf. https://bugzilla.redhat.com/show_bug.cgi?id=922974 for the latest example. I just wrote the below instructions for someone wanting to port klibc to a new platform, as an example of how to cross-build klibc then cross-build mksh with it, transfer the stuff to the target platform and run the tests there.
Using debian-68k@ because I happened to have this at hand ☺ and chose it to be my test platform. Substitute ARCH=m68k for whatever you’d have in the debian/rules file (like ARCH=arm CONFIG_AEABI=y) and the multiarch pathnames and CROSS_COMPILE as usual. $ apt-get source klibc → ./klibc-2.0.1/ $ dget http://ftp.de.debian.org/debian/pool/main/m/mksh/mksh_44-1.dsc → ./mksh-44/ $ mkdir ~/klibc-prefix $ cd klibc-2.0.1/ $ export CROSS_COMPILE=m68k-linux-gnu- $ ln -sf /usr/m68k-linux-gnu/include/asm* linux/include $ ls linux/include/ asm asm-generic linux $ make prefix=~/klibc-prefix ARCH=m68k $ make prefix=~/klibc-prefix ARCH=m68k install $ ls ~/klibc-prefix/bin/ klcc $ ln -s /usr/m68k-linux-gnu/include/asm ~/klibc-prefix/lib/klibc/include/ $ cd ../mksh-44/ $ CC=~/klibc-prefix/bin/klcc CPPFLAGS=-DMKSH_GCC55009 sh Build.sh -r [… lots of output …] size mksh text data bss dec hex filename 206198 452 19404 226054 37306 mksh Installing the shell: […] $ ls -l mksh check.* test.* -rw-r--r-- 1 root root 34338 Apr 6 2012 check.pl -rw-r--r-- 1 root root 227055 Feb 24 15:23 check.t -rwxr-xr-x 1 root root 231363 Mar 26 17:39 mksh -rwxr-xr-x 1 root root 2106 Mar 26 17:39 test.sh Now transfer these four files to the model. Next steps are run on the model: root@aranym:~/X # ./mksh test.sh -p $PWD/mksh This runs test.sh but tells it to use the mksh binary in the current directory, instead of the path from the build system, which is normally hardcoded into test.sh when it is generated. Also, test.sh itself is run with the mksh just built, both as an additional test and because it can use ksh features this way ;-) […] pass ./check.t:command-shift pass ./check.t:duffs-device Total failed: 0 Total passed: 436 That was it ;) -- To UNSUBSCRIBE, email to debian-68k-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/alpine.deb.2.02.1303261745060....@tglase.lan.tarent.de
