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authorEdwin Groothuis <edwin@FreeBSD.org>2008-09-28 10:13:11 +0000
committerEdwin Groothuis <edwin@FreeBSD.org>2008-09-28 10:13:11 +0000
commitc1dc0a1745ca8959fc4ce61ce026e2a83984c13e (patch)
tree786fa1fbb17c69aa06408624ed3ee94be63be396 /INSTALL
parent3e0c556084482bdb8cc32d03a1b57ecd45eb8947 (diff)
downloadsrc-c1dc0a1745ca8959fc4ce61ce026e2a83984c13e.tar.gz
src-c1dc0a1745ca8959fc4ce61ce026e2a83984c13e.zip
Flatten the dist tree.
Notes
Notes: svn path=/vendor/top/dist/; revision=183432
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+ TOP
+ Version 3.5
+
+ William LeFebvre
+ and a cast of many
+
+INSTALLATION
+
+Configuration and installation of top is very straightforward. After
+unpacking the sources, run the script "Configure". It will present you
+with a series of questions, all of which should be explained in the
+presentation. After you have answered all the questions, "Configure" will
+perform all the necessary configuration. Once this is finished, type
+"make install". Make will compile the sources then install the resulting
+executable and manual page in the appropriate places.
+
+The most difficult step in the configuration is the choice of an
+appropriate machine-specific module. The Configure script gives you a
+list of choices complete with brief descriptions of when each choice is
+appropriate. Each module is contained in a separate c file in the
+directory "machine". The module contains all of the machine-specific code
+that makes top work correctly on the architecture in question. All of the
+code in the top-level directory is machine-independent (or at least
+strives to be). Hints for some module choices that are not obvious are
+given at the end of this file.
+
+The first comment in each c file in that directory contains the synopsis
+AND a detailed description of the machines for which that module is
+appropriate. It also contains a list of authors for that module. If you
+are really stumped in this choice, use grep to find your machine
+manufacturer's name or operating system name in machine/*.c. If you still
+can't find one that is appropriate, then chances are very good that one
+hasn't been written yet. If that is the case, then you are out of luck.
+
+HANDLING MULTIPLE ARCHITECTURES
+
+If you need to recompile top for a different architecture (that is, using
+a different module) you need to reconfigure top. A short cut is available
+to make this a little easier. If all of your previous answers to the
+configuration questions (except for the module name of course) are
+adequate for the new architecture, then you can just use the command
+"Configure <modulename>". The configuration script will reconfigure top
+using the new module and all the answers you gave last time. It will
+finish with a "make clean". Once that completes, type "make install"
+and make will compile the sources and do the installation.
+
+HANDLING MULTIPLE OS VERSIONS
+
+By far the most frequently received bug report for top is something like
+this: "We just upgraded our operating system to version 99.9.9.9 and top
+broke. What should we do?" The simple answer is "recompile".
+
+Top is very sensitive to changes in internal kernel data structures
+(especially the proc and user structures). Some operating systems
+(especially SunOS) are notorious for changing these structure in every
+minor release of the OS. This means that a top executable made under one
+version of the OS will not always work correctly (if even at all) under
+another version. This is just one of those tough facts of life. There is
+really no way around it.
+
+To make life even worse, some operating systems (SunOS again) will use
+slightly different proc and user structures on different models. For
+example, "top" built on a SparcStation 2 will not run correctly on a
+SparcStation 10, even if they are both running SunOS 4.1.3. These
+unfortunate circumstances make maintaining top very difficult, especially
+in an environment that runs several different versions of the same
+operating system.
+
+But there is hope. If your operating system has a properly functioning
+"uname" command then you can handle this problem rather gracefully.
+Included in the distribution is a shell file called "metatop". All this
+shell file does is:
+
+ exec top-`uname -m`-`uname -r` "$@"
+
+So when you run this script, it execs a filename that is unique to your
+specific machine architecture and your OS revision number.
+
+To use "metatop", do the following:
+
+ . on any machine, run Configure and choose the module that is
+ appropriate for the machine
+ . for all machines which use the same module:
+ . group machines according to machine architecture AND OS
+ revision number (i.e.: sun4-4.1.1, sun4c-4.1.1, sun4c-4.1.2,
+ sun4-4.1.3, sun4c-4.1.3, sun4m-4.1.3, ...)
+ . for each group, choose one machine from that group and on it
+ run "make clean; make installmeta".
+
+
+The "installmeta" rule in the makefile will insure that top is compiled,
+install the shell file "metatop" as "top", then install the executable
+"top" with a name appropriate to the machine architecture and OS revision.
+
+
+HINTS FOR CHOOSING THE CORRECT MODULE:
+
+SOLARIS 2.x
+
+All versions of Solaris will now work with the module sunos5. Version
+specific modules (such as sunos54) no longer exist.
+
+
+SUNOS 4.x AND MULTIPROCESSOR ARCHITECTURES
+
+First, we need to be speaking the same language:
+
+sun4 a regular sparc sun 4 architecture machine (sparc station 1,
+ sparc station 2, IPC, SLC, etc.)
+
+sun4m a multiprocessor sparc (Sparc 10, 4/670, 4/690)
+
+I intended to write the sunos4 module so that an executable compiled on a
+sun4m machine would work correctly on a sun4 machine. Unfortunately my
+experiments indicate that this cannot be done. It turns out that the user
+structure is so different between these two architectures that nothing
+short of a serious hack will make the same executable work correctly on
+both machines. I recommend that you use the separate module "sunos4mp"
+when making an executable for a sun4m architecture, and use "sunos4" when
+making an executable for sun4 or sun4c architectures.
+
+DIGITAL UNIX V4.0
+
+This is the successor to DECOSF/1. Use the module decosf1.
+
+SOLBOURNE OPERATING SYSTEM (OS/MP)
+
+If you are running OS/MP version 4.1A, then use the module "osmp4.1a".
+
+If you are running a version of OS/MP OLDER than 4.1A (that is, one
+of its predecessors), use the module "sunos4".
+
+If you are running OS/MP 4.1B or LATER, use the module "sunos4mp".
+
+HP/UX OPERATING SYSTEM
+
+The module hpux8 works on all version 8 systems. Some say that it works
+with version 9 as well, but one user did send me a separate module for
+version 9. This module has only been tested on series 800 machines. I
+would recommend the following for those running version 9: try hpux9 and
+if it doesn't work then try hpux8. If neither work, then send mail to me
+and/or the modules' authors. Another note: we have a model 730 supposedly
+running version 9.01. The module hpux9 did not compile successfully, but
+the module hpux8 worked fine. The module hpux10 works on all revisions of
+HP/UX 10 except 10.10, where HP removed the definition of the proc structure
+from the system include files.
+
+NET/2 386BSD SYSTEMS
+
+If your version of the operating system has patchkit 2.4 installed,
+then you will need to modify machine/m_386bsd.c and uncomment the
+definition of PATCHED_KVM. This patchkit makes what more than a few
+people believe to be a wholly unnecessary patch to the way the kvm
+routines work.
+
+A/UX SYSTEMS
+
+There is a module for A/UX 3.0 and 3.1. Whether or not it works for
+any other version is not known. Proceed at your own risk.
+
+Although AUX does not generally have a renice systemcall, it can be
+implemented by tweeking kernel memory. The flag IMPLEMENT_SETPRIORITY
+controls the inclusion of this code. It is off be default. While
+such a simple hack should not be difficult to get right, USE THIS
+FEATURE AT YOUR OWN RISK!
+