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                  Obtaining and installing a Midipix distribution
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                   Last update: Sun, 24 Apr 2016 09:42:40 +0000
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A Midipix distribution consists of the following:
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a) the native Midipix toolchain, consisting of perk, gcc, its dependencies,
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   and binutils,
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b) musl, a lightweight, fast, simple, and free libc[1] used by Midipix,
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c) the Midipix runtime components that bridge the gap between the libc and the
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   executive subsystems of all Windows NT-derived Windows OS starting with and
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   including Windows XP, and
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d) a steadily increasing number of 3rd party open source packages, as expected in
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   any modern POSIX-compliant *nix environment, including GNU coreutils, shells,
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   libraries such as ncurses, libressl, as well as Perl and Python.
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Compressed Midipix distribution tarballs and, separately, source tarballs are,
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at present, produced every four (4) hours UTC after each successful build and
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subsequently signed. This process is fully automated by a portable Bourne shell
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script; all of the above mentioned components are cross-compiled.
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Thus, the most hassle-free way to get started with Midipix is to simply download
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the most recent distribution tarball and follow the instructions below. It is,
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however, recommended to anyone intending to use Midipix as a development platform
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to familiarise themselves with the build process. Other reasons to prefer building
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a Midipix distribution yourself include integrating new 3rd party software or local
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runtime component patches. At present, a full build from scratch takes about 30
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(thirty) minutes to finish on an 8-core host with eight simultaneous make jobs,
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minus the generation of the tarballs. The build script can be obtained from the
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following GitHub repository: <https://github.com/lalbornoz/midipix_build>.
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If you obtained a Midipix distribution tarball, extract it into a directory and
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drive of your choice, henceforth referred to as target directory; the drive can
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be a network drive. Do _not_ use anything but a true UNIX environment tar(1), as
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e.g. WinRAR or WinZip handle extracting hard links incorrectly.
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If you built Midipix yourself, the target directory is equivalent to the ${PREFIX}
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configured in build.vars, which defaults to ${HOME}/midipix.
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At present, providing an interactive Midipix environment still requires the Cygwin
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terminal emulator Mintty and a shell; this does not include pseudoterminals, which
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are entirely handled by Midipix. Both can be installed via the 64-bit Cygwin setup
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program at <https://www.cygwin.com/setup-x86_64.exe>.
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Once installed, launching a Midipix shell is accomplished by the `midipix.sh' shell
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script provided in the target directory from within a Cygwin shell prompt in Mintty
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and the target directory. This may either simply be done manually each time, or
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automated by a shortcut. As shortcuts cannot be distributed, it can be created by
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either:
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a) Opening (executing) the VBScript script in the target directory from within the
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   latter cscript.exe, providing the fully qualified pathname to Mintty, if it differs
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   from the default value of C:\cygwin64\bin\mintty.exe or
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b) manually creating a shortcut to Mintty with `Start in:' set to the target directory
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   and the following command line:
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   [ ... ]\mintty.exe -i /Cygwin-Terminal.ico -e sh midipix.sh, or
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References:
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Sun, 24 Apr 2016 09:04:08 +0000 [1] musl FAQ <http://www.musl-libc.org/faq.html>
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                  Midipix status report
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                   Last update: Tue, 26 Apr 2016 10:16:16 +0000
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The following build status codes are defined:
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C -- Complete build w/ at least the default configuration,
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B -- Broken, e.g. doesn't work at all or only minimally,
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I -- Integrated (e.g. linked against) with other packages,
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E -- Extensively tested and confirmed to work by multiple sources, possibly via a testsuite,
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P -- Patches needed to build that haven't been committed upstream yet, and
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U -- Update to latest stable version or HEAD pending.
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Component type      Name        Version           Status  Comments
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Host toolchain      binutils    2.24.51           C--EPU
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Host toolchain      gcc         4.6.4             ---EPU  Excludes libstdc++
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Host toolchain      musl        1.1.12            C-IEPU
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Native toolchain    binutils    2.24.51           C--EPU
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Native toolchain    gcc         4.6.4             ---EPU  Excludes libstdc++
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Native toolchain    gmp         5.1.3             C-IEPU
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Native toolchain    libelf      0.8.13            C-IEP-
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Native toolchain    mpc         1.0.1             C-IEPU
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Native toolchain    mpfr        3.1.2             C-IEPU
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Native toolchain    musl        1.1.12            C-IEPU
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Native toolchain    perk        HEAD              C-IE--
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Runtime components  dalist      HEAD              C-IE--
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Runtime components  ntapi       HEAD              C-IE--
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Runtime components  ntcon       HEAD              C-IE--
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Runtime components  ntctty      HEAD              C-IE--
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Runtime components  pemagine    HEAD              C-IE--
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Runtime components  psxscl      HEAD              C-IE--  Excludes clone(2) and dlopen(3)
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Runtime components  psxtypes    HEAD              C-IE--
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3rd party packages  apk_tools   2.6.6             C---P-
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3rd party packages  bash        4.3               C-I-P-  Linked against ncursesw
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3rd party packages  bzip2       1.0.6             C-----
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3rd party packages  coreutils   8.23              C---P-  Needs extensive testing
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3rd party packages  curl        7.47.1            C---P-
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3rd party packages  dash        0.5.8             C---P-
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3rd party packages  diffutils   3.3               C---P-
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3rd party packages  findutils   4.5.14            C---P-
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3rd party packages  gawk        4.1.3             C---P-
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3rd party packages  git         2.7.1             C-----
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3rd party packages  glib        2.46.2            C---P-
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3rd party packages  grep        2.22              C---P-
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3rd party packages  gzip        1.2.4             C-----
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3rd party packages  hexcurse    1.60.0            C-I-P-  Linked against ncursesw
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3rd party packages  irssi       0.8.18            CB--P-  DNS requires clone(2) due to pthreads (see psxscl)
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3rd party packages  less        481               C-I---  Linked against ncursesw
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3rd party packages  libarchive  3.1.2             C---P-
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3rd party packages  libfetch    2.33              C---P-
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3rd party packages  libffi      3.2.1             C---P-
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3rd party packages  libressl    2.2.6             C-I-P-
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3rd party packages  libz        1.2.8.2015.05.20  C-----
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3rd party packages  make        3.81              C---P-
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3rd party packages  mksh        R52c              C---P-
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3rd party packages  nano        2.5.3             C-I-P-  Linked against ncursesw
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3rd party packages  ncurses     6.0               C-IEP-  ncurses, ncursestw, and ncursesw built
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3rd party packages  openssh     7.1p2             C-I-P-  Linked against libressl
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3rd party packages  pacman      5.0.1             C-----
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3rd party packages  patch       2.7               C---P-
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3rd party packages  perl        5.22.1            ----P-  No dlopen(3) (see psxscl,) modules missing
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3rd party packages  python      3.5.1             -B--P-  No dlopen(3) (see psxscl,) modules missing
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3rd party packages  rsync       3.1.2             C---P-
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3rd party packages  sed         4.2.2             C---P-
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3rd party packages  tar         1.28              C---P-
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3rd party packages  tcsh        6.19.00           C-I-P-
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3rd party packages  util_linux  2.27.1            C---P-  Needs extensive testing
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3rd party packages  which       2.21              C-----
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3rd party packages  xz          5.2.2             C---P-
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3rd party packages  zsh         5.2               C-I-P-  Linked against ncursesw
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                  Midipix roadmap/TODO list
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                   Last update: Fri, 03 Jun 2016 12:47:13 +0000
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midipix alpha release: the final stretch
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========================================
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my.own.tasks@midipix.org
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------------------------
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* ofd tables: additional bucket allocation as needed.
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* `ls -R //c`: check for the cause of individual failures.
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  (might be related to the above ofd bucket allocation).
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* integrate clone and the initial ldso implementation.
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* integrate the signal queue, check signal implementation for
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  semantic completion, especially in the context of multi-threaded
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  applications.
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* implement /dev/random and /dev/urandom, as well as other virtual
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  folders needed by core applications.
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* implement the scheduler functions.
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* implement (possibly as stubs) missing system calls, fix existing
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  system calls as needed by the core applications.
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* toolchain: provided the few interfaces missing for C++ support.
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* porting of mintty.
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porting and other release-related tasks
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---------------------------------------
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* testing of ncurses.
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* testing of bash and dash when built with ncurses.
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* testing of all of the coreutils, seeing which ones fail due to
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  a missing virtual file or folder, which ones fail due to a missing
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  system call (crash), and which ones fail due to an incomplete or
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  incorrect system call.
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* porting of gdb.
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vim:expandtab sw=8 ts=8 tw=0 nowrap