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Robert Moore authored and Len Brown committed Sep 22, 2005
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: 9ad11ab48b1ad618bf47076e9e579f267f5306c2
refs/heads/master: bda663d36b94c723153246a4231bbc0f1cd1836e
32 changes: 0 additions & 32 deletions trunk/.gitignore

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29 changes: 8 additions & 21 deletions trunk/CREDITS
Original file line number Diff line number Diff line change
Expand Up @@ -611,7 +611,8 @@ S: USA
N: Randolph Chung
E: tausq@debian.org
D: Linux/PA-RISC hacker
S: Hong Kong
S: Los Altos, CA 94022
S: USA

N: Juan Jose Ciarlante
W: http://juanjox.kernelnotes.org/
Expand Down Expand Up @@ -1096,7 +1097,7 @@ S: 80050-430 - Curitiba - Paran
S: Brazil

N: Kumar Gala
E: galak@kernel.crashing.org
E: kumar.gala@freescale.com
D: Embedded PowerPC 6xx/7xx/74xx/82xx/83xx/85xx support
S: Austin, Texas 78729
S: USA
Expand Down Expand Up @@ -1883,7 +1884,6 @@ N: Jaya Kumar
E: jayalk@intworks.biz
W: http://www.intworks.biz
D: Arc monochrome LCD framebuffer driver, x86 reboot fixups
D: pirq addr, CS5535 alsa audio driver
S: Gurgaon, India
S: Kuala Lumpur, Malaysia

Expand Down Expand Up @@ -2247,12 +2247,6 @@ S: 249 Nichols Avenue
S: Syracuse, New York 13206
S: USA

N: Kyle McMartin
E: kyle@parisc-linux.org
D: Linux/PARISC hacker
D: AD1889 sound driver
S: Ottawa, Canada

N: Dirk Melchers
E: dirk@merlin.nbg.sub.org
D: 8 bit XT hard disk driver for OMTI5520
Expand Down Expand Up @@ -3203,7 +3197,7 @@ N: Eugene Surovegin
E: ebs@ebshome.net
W: http://kernel.ebshome.net/
P: 1024D/AE5467F1 FF22 39F1 6728 89F6 6E6C 2365 7602 F33D AE54 67F1
D: Embedded PowerPC 4xx: EMAC, I2C, PIC and random hacks/fixes
D: Embedded PowerPC 4xx: I2C, PIC and random hacks/fixes
S: Sunnyvale, California 94085
S: USA

Expand Down Expand Up @@ -3405,15 +3399,6 @@ S: Chudenicka 8
S: 10200 Prague 10, Hostivar
S: Czech Republic

N: Thibaut Varene
E: T-Bone@parisc-linux.org
W: http://www.parisc-linux.org/
P: 1024D/B7D2F063 E67C 0D43 A75E 12A5 BB1C FA2F 1E32 C3DA B7D2 F063
D: PA-RISC port minion, PDC and GSCPS2 drivers, debuglocks and other bits
D: Some bits in an ARM port, S1D13XXX FB driver, random patches here and there
D: AD1889 sound driver
S: Paris, France

N: Heikki Vatiainen
E: hessu@cs.tut.fi
D: Co-author of Multi-Protocol Over ATM (MPOA), some LANE hacks
Expand Down Expand Up @@ -3651,9 +3636,11 @@ S: Beaverton, OR 97005
S: USA

N: Michal Wronski
E: Michal.Wronski@motorola.com
E: wrona@mat.uni.torun.pl
W: http://www.mat.uni.torun.pl/~wrona
D: POSIX message queues fs (with K. Benedyczak)
S: Krakow
S: ul. Teczowa 23/12
S: 80-680 Gdansk-Sobieszewo
S: Poland

N: Frank Xia
Expand Down
6 changes: 0 additions & 6 deletions trunk/Documentation/00-INDEX
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Expand Up @@ -24,8 +24,6 @@ DMA-mapping.txt
- info for PCI drivers using DMA portably across all platforms.
DocBook/
- directory with DocBook templates etc. for kernel documentation.
HOWTO
- The process and procedures of how to do Linux kernel development.
IO-mapping.txt
- how to access I/O mapped memory from within device drivers.
IPMI.txt
Expand Down Expand Up @@ -258,10 +256,6 @@ specialix.txt
- info on hardware/driver for specialix IO8+ multiport serial card.
spinlocks.txt
- info on using spinlocks to provide exclusive access in kernel.
stable_api_nonsense.txt
- info on why the kernel does not have a stable in-kernel api or abi.
stable_kernel_rules.txt
- rules and procedures for the -stable kernel releases.
stallion.txt
- info on using the Stallion multiport serial driver.
svga.txt
Expand Down
54 changes: 30 additions & 24 deletions trunk/Documentation/Changes
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Expand Up @@ -31,6 +31,8 @@ al espa
Eine deutsche Version dieser Datei finden Sie unter
<http://www.stefan-winter.de/Changes-2.4.0.txt>.

Last updated: October 29th, 2002

Chris Ricker (kaboom@gatech.edu or chris.ricker@genetics.utah.edu).

Current Minimal Requirements
Expand All @@ -46,7 +48,7 @@ necessary on all systems; obviously, if you don't have any ISDN
hardware, for example, you probably needn't concern yourself with
isdn4k-utils.

o Gnu C 3.2 # gcc --version
o Gnu C 2.95.3 # gcc --version
o Gnu make 3.79.1 # make --version
o binutils 2.12 # ld -v
o util-linux 2.10o # fdformat --version
Expand All @@ -63,7 +65,7 @@ o isdn4k-utils 3.1pre1 # isdnctrl 2>&1|grep version
o nfs-utils 1.0.5 # showmount --version
o procps 3.2.0 # ps --version
o oprofile 0.9 # oprofiled --version
o udev 071 # udevinfo -V
o udev 058 # udevinfo -V

Kernel compilation
==================
Expand All @@ -72,7 +74,26 @@ GCC
---

The gcc version requirements may vary depending on the type of CPU in your
computer.
computer. The next paragraph applies to users of x86 CPUs, but not
necessarily to users of other CPUs. Users of other CPUs should obtain
information about their gcc version requirements from another source.

The recommended compiler for the kernel is gcc 2.95.x (x >= 3), and it
should be used when you need absolute stability. You may use gcc 3.0.x
instead if you wish, although it may cause problems. Later versions of gcc
have not received much testing for Linux kernel compilation, and there are
almost certainly bugs (mainly, but not exclusively, in the kernel) that
will need to be fixed in order to use these compilers. In any case, using
pgcc instead of plain gcc is just asking for trouble.

The Red Hat gcc 2.96 compiler subtree can also be used to build this tree.
You should ensure you use gcc-2.96-74 or later. gcc-2.96-54 will not build
the kernel correctly.

In addition, please pay attention to compiler optimization. Anything
greater than -O2 may not be wise. Similarly, if you choose to use gcc-2.95.x
or derivatives, be sure not to use -fstrict-aliasing (which, depending on
your version of gcc 2.95.x, may necessitate using -fno-strict-aliasing).

Make
----
Expand Down Expand Up @@ -118,14 +139,9 @@ You'll probably want to upgrade.
Ksymoops
--------

If the unthinkable happens and your kernel oopses, you may need the
ksymoops tool to decode it, but in most cases you don't.
In the 2.6 kernel it is generally preferred to build the kernel with
CONFIG_KALLSYMS so that it produces readable dumps that can be used as-is
(this also produces better output than ksymoops).
If for some reason your kernel is not build with CONFIG_KALLSYMS and
you have no way to rebuild and reproduce the Oops with that option, then
you can still decode that Oops with ksymoops.
If the unthinkable happens and your kernel oopses, you'll need a 2.4
version of ksymoops to decode the report; see REPORTING-BUGS in the
root of the Linux source for more information.

Module-Init-Tools
-----------------
Expand Down Expand Up @@ -221,12 +237,6 @@ udev
udev is a userspace application for populating /dev dynamically with
only entries for devices actually present. udev replaces devfs.

FUSE
----

Needs libfuse 2.4.0 or later. Absolute minimum is 2.3.0 but mount
options 'direct_io' and 'kernel_cache' won't work.

Networking
==========

Expand Down Expand Up @@ -301,9 +311,9 @@ Getting updated software
Kernel compilation
******************

gcc
---
o <ftp://ftp.gnu.org/gnu/gcc/>
gcc 2.95.3
----------
o <ftp://ftp.gnu.org/gnu/gcc/gcc-2.95.3.tar.gz>

Make
----
Expand Down Expand Up @@ -380,10 +390,6 @@ udev
----
o <http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html>

FUSE
----
o <http://sourceforge.net/projects/fuse>

Networking
**********

Expand Down
43 changes: 6 additions & 37 deletions trunk/Documentation/CodingStyle
Original file line number Diff line number Diff line change
Expand Up @@ -199,7 +199,7 @@ The rationale is:
modifications are prevented
- saves the compiler work to optimize redundant code away ;)

int fun(int a)
int fun(int )
{
int result = 0;
char *buffer = kmalloc(SIZE);
Expand Down Expand Up @@ -344,7 +344,7 @@ Remember: if another thread can find your data structure, and you don't
have a reference count on it, you almost certainly have a bug.


Chapter 11: Macros, Enums and RTL
Chapter 11: Macros, Enums, Inline functions and RTL

Names of macros defining constants and labels in enums are capitalized.

Expand Down Expand Up @@ -429,35 +429,7 @@ from void pointer to any other pointer type is guaranteed by the C programming
language.


Chapter 14: The inline disease

There appears to be a common misperception that gcc has a magic "make me
faster" speedup option called "inline". While the use of inlines can be
appropriate (for example as a means of replacing macros, see Chapter 11), it
very often is not. Abundant use of the inline keyword leads to a much bigger
kernel, which in turn slows the system as a whole down, due to a bigger
icache footprint for the CPU and simply because there is less memory
available for the pagecache. Just think about it; a pagecache miss causes a
disk seek, which easily takes 5 miliseconds. There are a LOT of cpu cycles
that can go into these 5 miliseconds.

A reasonable rule of thumb is to not put inline at functions that have more
than 3 lines of code in them. An exception to this rule are the cases where
a parameter is known to be a compiletime constant, and as a result of this
constantness you *know* the compiler will be able to optimize most of your
function away at compile time. For a good example of this later case, see
the kmalloc() inline function.

Often people argue that adding inline to functions that are static and used
only once is always a win since there is no space tradeoff. While this is
technically correct, gcc is capable of inlining these automatically without
help, and the maintenance issue of removing the inline when a second user
appears outweighs the potential value of the hint that tells gcc to do
something it would have done anyway.



Chapter 15: References
Chapter 14: References

The C Programming Language, Second Edition
by Brian W. Kernighan and Dennis M. Ritchie.
Expand All @@ -472,13 +444,10 @@ ISBN 0-201-61586-X.
URL: http://cm.bell-labs.com/cm/cs/tpop/

GNU manuals - where in compliance with K&R and this text - for cpp, gcc,
gcc internals and indent, all available from http://www.gnu.org/manual/
gcc internals and indent, all available from http://www.gnu.org

WG14 is the international standardization working group for the programming
language C, URL: http://www.open-std.org/JTC1/SC22/WG14/

Kernel CodingStyle, by greg@kroah.com at OLS 2002:
http://www.kroah.com/linux/talks/ols_2002_kernel_codingstyle_talk/html/
language C, URL: http://std.dkuug.dk/JTC1/SC22/WG14/

--
Last updated on 30 December 2005 by a community effort on LKML.
Last updated on 16 February 2004 by a community effort on LKML.
6 changes: 0 additions & 6 deletions trunk/Documentation/DocBook/.gitignore

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