The '''::tcl_platform''' global array (documented on the [tclvars] manpage) holds useful data concerning the platform on which a specific [Tcl] interpreter is running. This page is intended to list the values of tcl_platform on various systems. This might be useful for folks who are trying to adapt their code to different [platform]s. The meaning of the element names are: * byteOrder - is the most significant, or least significant, byte first * machine - some info specific to the kind of hardware * os - a string identifying the operating system * osVersion - the version of the os * pathSeparator — character used to [split] variables like `env(PATH)` into a proper Tcl list (from 8.6) * platform - which of the major types of computers (or operating systems) is this? * pointerSize - bytes taken up by a void pointer (from 8.5) * user - user's login id * wordSize - number of bytes for a machine-word (actually, a long) * engine - script engine [implementation] (e.g. "Eagle", "TH1", "Jim", "Picol", "JTcl", "Tcl" 8.5.19+ / 8.6.5+, "Jacl", etc). See [http://tip.tcl.tk/440%|%TIP #440]. Optionally present members include: * threaded - tcl configured with --enable-threads * debug - a windows tcl configured with --enable-debug [Eagle] may provide the following members (other [implementation%|%implementations%|%] may support some of these as well): * characterSize - number of bytes used to represent a single character. may be a range in the form of (`lower-upper`). * dirSeparator - character used to separate parts of a fully qualified file name. * host - name of the machine evaluating the script. * osPatchLevel - patch level of the operating system. * osServicePack - string identifying the service pack of the operating system. * patchLevel - patch level of Tcl implemented by the script engine. * processBits - number of address space bits for the process. * processors - number of logical processors for the process. * unicode - if present, characters are encoded using UCS2/UTF-16 or UCS4/UTF-32. * version - version of Tcl implemented by the script engine. Is anyone aware of any other members? ---- [LV] In Tcl 8.5, a new platform package makes available new commands such as '''platform::generic''' and '''platform::identify''' . ---- [LV] How much of this information is generated dynamically, and how much of it ''really'' is generated statically at compile time? * byteOrder, wordSize, and pointerSize are dynamically generated. ** [DKF]: These are architectural constants, i.e., are effectively static because `sizeof(void*)` yields a constant. * The statement which adds the threaded element is statically compiled into the system. * The platform entry is generated statically. * The os, and osVersion entries appear to be generated dynamically. * The machine entry is generated dynamically. * The user entry is generated dynamically (based on USER and LOGNAME environment variables) * The debug entry is statically added. ---- **Examples from Different Systems** Please add the output of ====== parray tcl_platform ====== here for your platform if it is not represented. <> AIX ****AIX 4.3**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = 003C87964C00 tcl_platform(os) = AIX tcl_platform(osVersion) = 4.3 tcl_platform(platform) = unix ****AIX 5.1 on PPC**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = 0042065B4C00 tcl_platform(os) = AIX tcl_platform(osVersion) = 5.1 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****AIX 6.1 on pSeries**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = 000BF680D600 tcl_platform(os) = AIX tcl_platform(osVersion) = 6.1 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 <> <> Android ****Android 4.2.2 "Jelly Bean"**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = armv7l tcl_platform(os) = Linux tcl_platform(osVersion) = 3.0.36+ tcl_platform(pathSeparator) = : tcl_platform(platform) = unix tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(user) = u0_a71 tcl_platform(wordSize) = 4 ****Android 4.4.2 "KitKat"**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = armv7l tcl_platform(os) = Linux tcl_platform(osVersion) = 3.4.0 tcl_platform(pathSeparator) = : tcl_platform(platform) = unix tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(user) = u0_a107 tcl_platform(wordSize) = 4 ****Android 5.0.2 "Lollipop"**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = armv7l tcl_platform(os) = Linux tcl_platform(osVersion) = 3.4.0-perf-g5fe8ba4 tcl_platform(pathSeparator) = : tcl_platform(platform) = unix tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(user) = u0_a3 tcl_platform(wordSize) = 4 User names are assigned automatically by the OS. <> <> HP-UX ****[HP-UX] 10.20**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = 9000/715 tcl_platform(os) = HP-UX tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = x86_64 tcl_platform(os) = Darwin tcl_platform(osVersion) = 14.3.0 tcl_platform(pathSeparator) = : tcl_platform(platform) = unix tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(user) = bll tcl_platform(wordSize) = 8 tcl_platform(osVersion) = B.10.20 tcl_platform(platform) = unix ****[HP-UX] 11**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = 9000/782 tcl_platform(os) = HP-UX tcl_platform(osVersion) = B.11.00 tcl_platform(platform) = unix ****[HP-UX] 11.11**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = 9000/800 tcl_platform(os) = HP-UX tcl_platform(osVersion) = B.11.11 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****[HP-UX] 11.23 Itanium**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = ia64 tcl_platform(os) = HP-UX tcl_platform(osVersion) = B.11.23 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****[HP-UX] 11.31 parisc**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = 9000/800 tcl_platform(os) = HP-UX tcl_platform(osVersion) = B.11.31 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 <> <> Linux I've put the Linux entries together, annotated with processor, kernel, and distribution info. -- DJH ****Linux Alpha kernel 2.2, distrib Redhat 6.2**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = alpha tcl_platform(os) = Linux tcl_platform(osVersion) = 2.2.19 tcl_platform(platform) = unix ****Linux StrongARM kernel 2.4, distrib Debian 2.2**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = armv4l tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.0-test1-ac7-rmk1-crl2 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****Linux PowerPC kernel 2.4, distrib Debian 'woody'**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = ppc tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.16 tcl_platform(platform) = unix ****Linux s/390x kernel 2.6, distrib SuSE Enterprise Server 10 SP 1**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = s390x tcl_platform(os) = Linux tcl_platform(osVersion) = 2.6.16.46-0.12-default tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****Linux SH4 kernel 2.4, distrib Debian unstable/testing**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = sh4 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.18-sh tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****Linux x86 kernel 2.4, distrib RedHat Enterprise Linux 3**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = ia64 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.21-47.EL tcl_platform(platform) = unix tcl_platform(wordSize) = 8 ****Linux x86 kernel 2.2, distrib Redhat 6.2**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i686 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.2.19 tcl_platform(platform) = unix ****Linux x86 kernel 2.4, distrib Debian**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i686 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.7-win4lin tcl_platform(platform) = unix ****Linux x86 kernel 2.4 distrib Mandrake (8.1)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i686 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.8-26mdk tcl_platform(platform) = unix ****Linux x86, kernel 2.4.22, distrib Slackware**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i686 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.22 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****Linux x86, kernel 2.6.8, distrib Debian, Sarge (on PC with 1GHz AMD Athlon)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i686 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.6.8-2-386 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Linux x86, kernel 2.6.8, distrib Debian, Sarge (on PC with a classic Pentium 120)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i586 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.6.8-2-386 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Linux x86_64, kernel 2.6.8, distrib SUSE 9.2**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = x86_64 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.6.8-24.14-default tcl_platform(platform) = unix tcl_platform(wordSize) = 8 ****Linux x86, kernel 2.6.21.5, distrib Slackware 12.0**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i686 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.6.21.5 tcl_platform(platform) = unix tcl_platform(tip,268) = 1 tcl_platform(tip,280) = 1 tcl_platform(wordSize) = 4 ****S/390 Linux**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = s390 tcl_platform(os) = Linux tcl_platform(osVersion) = 2.4.21-20.EL tcl_platform(platform) = unix tcl_platform(wordSize) = 4 <> <> MacOS Classic / MacOS X ****Mac OS 8**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = ppc tcl_platform(os) = MacOS tcl_platform(osVersion) = 8.6 tcl_platform(platform) = macintosh ****Mac OS 9**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = ppc tcl_platform(os) = MacOS tcl_platform(osVersion) = 9.0 tcl_platform(platform) = macintosh ****Mac OS X**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 1.3.7 tcl_platform(platform) = unix ****Mac OS X, officially version 10.2.3, "Jaguar"**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 6.3 tcl_platform(platform) = unix ****Mac OS X, 10.3.9, "Panther"**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 7.9.0 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Mac OS X, 10.4.1, "Tiger"**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 8.1.0 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Mac OS X, 10.4.3, "Tiger"**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 8.3.0 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Mac OS X, 10.4.6**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 8.6.0 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Mac OS X, 10.4.8 (PowerPC)**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 8.8.0 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Mac OS X, 10.4.8 (Intel)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = Darwin tcl_platform(osVersion) = 8.8.1 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Mac OS X, 10.4.10 (Intel)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = Darwin tcl_platform(osVersion) = 8.10.1 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(tip,268) = 1 tcl_platform(tip,280) = 1 tcl_platform(wordSize) = 4 ****Mac OS X, 10.5.1 "Leopard" (PowerPC)**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = Power Macintosh tcl_platform(os) = Darwin tcl_platform(osVersion) = 9.1.0 tcl_platform(platform) = unix tcl_platform(wordSize) = 8 ****Mac OS X, 10.5.1 "Leopard" (Intel) - ActiveTcl 8.5.0**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = Darwin tcl_platform(osVersion) = 9.1.0 tcl_platform(platform) = unix tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****MacOS X 10.6.2 "Snow Leopard" (Intel) - ActiveTcl 8.6**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = Darwin tcl_platform(osVersion) = 10.2.0 tcl_platform(platform) = unix tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****MacOS X 10.7.1 "Lion" (Intel) - ActiveTcl 8.5.10**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = x86_64 tcl_platform(os) = Darwin tcl_platform(osVersion) = 11.1.0 tcl_platform(platform) = unix tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 8 ****MacOS X 10.9.4 "Mavericks" (Intel) - tclkit 8.6.4**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = x86_64 tcl_platform(os) = Darwin tcl_platform(osVersion) = 13.3.0 tcl_platform(pathSeparator) = : tcl_platform(platform) = unix tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 8 ****MacOS X 10.10 "Yosemite" (Intel) - ActiveTcl 8.6.4**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = x86_64 tcl_platform(os) = Darwin tcl_platform(osVersion) = 14.3.0 tcl_platform(pathSeparator) = : tcl_platform(platform) = unix tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 8 <> <> BSD Variants ****DragonFlyBSD 1.0A-RELEASE**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = DragonFly tcl_platform(osVersion) = 1.0A-RELEASE tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****FreeBSD 4.7-STABLE x86**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = FreeBSD tcl_platform(osVersion) = 4.7-STABLE tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****FreeBSD 4.8-STABLE x86**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = FreeBSD tcl_platform(osVersion) = 4.8-STABLE tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****NetBSD 1.6(I) x86**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = NetBSD tcl_platform(osVersion) = 1.6I tcl_platform(platform) = unix ****NetBSD 2.0.2 x86**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = NetBSD tcl_platform(osVersion) = 2.0.2 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****OpenBSD 3.0 x86**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i386 tcl_platform(os) = OpenBSD tcl_platform(osVersion) = 3.0 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 <> <> Solaris ****SunOS 4 / Solaris 1**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4m tcl_platform(os) = SunOS tcl_platform(osVersion) = 4.1.3_U1 tcl_platform(platform) = unix ****SPARC Solaris 2.6**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4u tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.6 tcl_platform(platform) = unix ****Sparc Solaris 2.7**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4u tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.7 tcl_platform(platform) = unix tcl_platform(threaded) = 1 ****Sparc Solaris 8**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4u tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.8 tcl_platform(platform) = unix ****Intel Solaris 8**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = i86pc tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.8 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 ****Sparc Solaris 9 with threads enabled**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4u tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.9 tcl_platform(platform) = unix tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Sparc Solaris 9 with threads and 64 bit enabled**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4u tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.9 tcl_platform(platform) = unix tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 8 ****Sparc Solaris 9, without threads or 64 bit enabled, Tcl 8.5.4**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4u tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.9 tcl_platform(platform) = unix tcl_platform(pointerSize) = 4 tcl_platform(wordSize) = 4 ****Sparc Solaris 10**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = sun4u tcl_platform(os) = SunOS tcl_platform(osVersion) = 5.10 tcl_platform(platform) = unix tcl_platform(wordSize) = 4 <> <> Other UNIX ****IRIX 6.5**** tcl_platform(byteOrder) = bigEndian tcl_platform(machine) = IP32 tcl_platform(os) = IRIX tcl_platform(osVersion) = 6.5 tcl_platform(platform) = unix ****Tru64 UNIX**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = alpha tcl_platform(os) = OSF1 tcl_platform(osVersion) = X5.1 tcl_platform(platform) = unix <> <> Windows MSDN has documentation for the [Microsoft] [Windows] platforms [http://msdn.microsoft.com/en-us/library/ms724429(v=VS.85).aspx] ****CYGWIN_NT-5.1 (tclsh8.5.exe, Cygwin on Windows XP Professional)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 5.1 tcl_platform(platform) = unix The last field changed from "windows" to "unix" in 2012-02. ****Windows 3.1**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Win32s tcl_platform(osVersion) = 1.30 tcl_platform(platform) = windows ****Win95**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows 95 tcl_platform(osVersion) = 4.0 tcl_platform(platform) = windows tcl_platform(wordSize) = 4 ****Win98**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows 95 tcl_platform(osVersion) = 4.10 tcl_platform(platform) = windows ****WinNT**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 4.0 tcl_platform(platform) = windows ****Win2000**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 5.0 tcl_platform(platform) = windows tcl_platform(wordSize) = 4 ****Windows XP Home**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 5.1 tcl_platform(platform) = windows tcl_platform(wordSize) = 4 ****Windows XP Professional**** tcl_platform(byteOrder) = littleEndian tcl_platform(debug) = 1 tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 5.1 tcl_platform(platform) = windows ****Windows XP Professional/Firefox 1.04 with [Tcl/Tk Tclet Plugin] (with [[tk windowingsystem]] = "win32")**** tcl_platform(byteOrder) = littleEndian tcl_platform(platform) = windows tcl_platform(wordSize) = 4 ****Windows Vista**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.0 tcl_platform(platform) = windows tcl_platform(wordSize) = 4 ****Windows 2003 x64 (64-bit) running 32-bit Tcl**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 5.2 tcl_platform(platform) = windows tcl_platform(wordSize) = 4 ****Windows 2003 x64 (64-bit) running 64-bit Tcl**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = amd64 tcl_platform(os) = Windows NT tcl_platform(osVersion) = 5.2 tcl_platform(platform) = windows tcl_platform(wordSize) = 4 ****Windows 7 32-bit**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.1 tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Windows 7 Home Premium 64-bit**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.1 tcl_platform(platform) = windows tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Windows 8.0 64-bit**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = amd64 tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.2 tcl_platform(pathSeparator) = ; tcl_platform(platform) = windows tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 Note that an older Tcl version will identify Windows 8.1 as osVersion 6.2. This is an artifact of the windows API. ****Windows 8.1 Pro 64-bit**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = amd64 tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.3 tcl_platform(pathSeparator) = ; tcl_platform(platform) = windows tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Windows 10 Pro x64 (tclkit-8.6.4-win32-ix86.exe)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 10.0 tcl_platform(pathSeparator) = ; tcl_platform(platform) = windows tcl_platform(pointerSize) = 4 tcl_platform(wordSize) = 4 ****Windows 10 Pro x64 (tclkit-8.6.4-win32-x86_64.exe)**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = amd64 tcl_platform(os) = Windows NT tcl_platform(osVersion) = 10.0 tcl_platform(pathSeparator) = ; tcl_platform(platform) = windows tcl_platform(pointerSize) = 8 tcl_platform(wordSize) = 4 Note: there is no way to obtain the bitsize of the OS, an important variable, e.g. when you're going to [exec] programs that exist in specific 32- and 64-bit versions. A quick and reliable method in distinguishing is by using the windows wmi framework as follows (but you could also use the [twapi] package): lindex [exec wmic computersystem get systemtype] 1 Responses: '''X86-based''' or '''x64-based''' This was tested with following systems with 64-bit CPUs: Win XP 32-bit, Win7 32-bit and Win7 64-bit. ****Windows 7 Home Premium 64-bit running 64-bit Tcl**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = amd64 tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.1 tcl_platform(platform) = windows tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****Windows 2008 Server R2 64-bit**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = amd64 tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.1 tcl_platform(pathSeparator) = ; tcl_platform(platform) = windows tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 ****[Windows/CE]**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = arm tcl_platform(os) = Windows CE tcl_platform(osVersion) = 3.0 tcl_platform(platform) = windows ****[Windows Mobile 2003]SE ([eTcl])**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = arm tcl_platform(os) = Windows CE tcl_platform(osVersion) = 4.21 tcl_platform(platform) = windows tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 <> <> Other Platforms ****[OS/400] V5R1M0**** tcl_platform(byteOrder) = bigEndian tcl_platform(host_platform) = unix tcl_platform(machine) = PowerPC tcl_platform(os) = OS/400 tcl_platform(osVersion) = V5R1M0 tcl_platform(platform) = java ****QNX 6.3.0**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = x86pc tcl_platform(os) = QNX tcl_platform(osVersion) = 6.3.0 tcl_platform(platform) = unix <> <> Eagle ****Windows 7 Ultimate x86**** tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = intel tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.1 tcl_platform(pathSeparator) = ; tcl_platform(platform) = windows tcl_platform(pointerSize) = 4 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 <> ---- Usage tip: it's probably a mistake to "switch $::tcl_platform(os) ..." If you're having to distinguish different flavors of [Unix] or [Windows] from each other, you're likely better off determining the availability of the functionality you truly want, rather than trying to infer it from OS variation. In the Microsoft world, for example, service packs give different NT installations features that align them with 95, 98, ... Think of how [autoconf] performs run-time tests, rather than switching on `uname`. For Tk since 8.4.2 there is also [[tk windowingsystem]], which tells you whether your [Tk] port is "win32", "x11", "aqua" or (MacOS) "classic". For UI issues that's better than asking for $tcl_platform(platform) and/or $tcl_platform(os), especially on [MacOS X], where you have "aqua" as well as "x11" on the very same platform. ---- Note, the ''debug'' variable apparently is only available on Windows platforms when the Tcl library itself was compiled with the '''--enable-symbols''' flag. ---- There's a separate page called [Generating a generic platform name], for discussion on how to massage the above information into a name which can be used as dirname to disambiguate shared libraries, etc. ---- Also potentially useful is the [getWindowsAPIVendor] proc which, on Windows, provides info regarding whether your underlying platform is [Microsoft Windows], [Wine] or [ReactOS]. ---- '''[daneyul] - 2010-03-18 15:37:42''' Last I checked, Windows 7 is no longer pre-release. Any one have any info on the codes returned by Win 7 32, 64, for the different versions (Home Premium, Ultimate, Pro) for those who don't have Win 7 systems at hand? [JoGusto] - 2014-01-03 Win 7 Ultimate running Tcl 8.5 64-bit returns this: tcl_platform(byteOrder) = littleEndian tcl_platform(machine) = amd64 tcl_platform(os) = Windows NT tcl_platform(osVersion) = 6.1 tcl_platform(platform) = windows tcl_platform(pointerSize) = 8 tcl_platform(threaded) = 1 tcl_platform(wordSize) = 4 (AFAIK, Win 7 Ultimate, Professional, etc, all return the same Windows version information for (os) and (osVersion)) ---- [AMG]: Since [Microsoft] has chosen to use the LLP64 model for 64-bit [Windows], $`tcl_platform(wordSize)` is 4 on both 32- and 64-bit platforms. Hardly useful. Thankfully, we have $`tcl_platform(pointerSize)` and $`tcl_platform(machine)` to disambiguate. For my application, I'd like to know the rules of the platform (actually, the compiler used to build Tcl) for alignment and size of various C types. Is a double aligned on a 4- or 8-byte boundary? 32- and 64-bit Linux disagree on this point (unless you use `-malign-double`), though I think 32- and 64-bit Windows both use 8-byte boundaries, at least when using [MSVC]. ---- [daneyul] - 2015-9-9 This list is getting woefully out of date. Wish I had the computers available to fill in the blanks but sadly I do not. Anyone able to add entries for: Mac: Mountain Lion (OSX 10.8), Maverick (OSX 10.9), Yosemite (OSX 10.10) and El Capitain (OSX 10.11) Windows: Windows 10 ---- '''Torsten''' 2015.10.11 Added Maverick (OSX 10.9), systems folded to improve clarity ---- '''[kicka] - 2015-12-03 11:06:44''' Added Android 5.0.2 Lollipop from my LG G2. <> Porting | Syntax | Platform Issues