Commit Graph

18 Commits

Author SHA1 Message Date
Peter Maydell
2948f0cde3 CODING_STYLE: Define our preferred form for multiline comments
The codebase has a bit of a mix of different multiline
comment styles. State a preference for the Linux kernel
style:
    /*
     * Star on the left for each line.
     * Leading slash-star and trailing star-slash
     * each go on a line of their own.
     */

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20180611141716.3813-1-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Vladimir Sementsov-Ogievskiy
44c6d6387b coding_style: add point about 0x in trace-events
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170731160135.12101-2-vsementsov@virtuozzo.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-08-01 12:13:07 +01:00
Peter Maydell
25ac5bbec4 CODING_STYLE: Mention preferred comment form
Our defacto coding style strongly prefers /* */ style comments
over the single-line // style, and checkpatch enforces this,
but we don't actually document this. Mention it in CODING_STYLE.

Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-02-28 09:03:38 +03:00
Jonathan Neuschäfer
56bef8511a CODING_STYLE: Fix a typo ("have" vs. "has")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-10-08 11:25:29 +03:00
Paolo Bonzini
8fbe3d1fcf CODING_STYLE, checkpatch: update line length rules
Line lengths above 80 characters do exist.  They are rare, but
they happen from time to time.  An ignored rule is worse than an
exception to the rule, so do the latter.

Some on the list expressed their preference for a soft limit that
is slightly lower than 80 characters, to account for extra characters
in unified diffs (including three-way diffs) and for email quoting.
However, there was no consensus on this so keep the 80-character
soft limit and add a hard limit at 90.

Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-08-10 12:22:33 +02:00
Paolo Bonzini
690a35e1f2 CODING_STYLE: update mixed declaration rules
Mixed declarations do come in handy at the top of #ifdef blocks.
Reluctantly allow this particular usage and suggest an alternative.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-09 15:34:54 +02:00
Gonglei
2bb0020cf9 CODING_STYLE: Section about conditional statement
Yoda conditions lack readability, and QEMU has a
strict compiler configuration for checking a common
mistake like "if (dev = NULL)". Make it a written rule.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-15 18:54:06 +04:00
Eduardo Habkost
e939c6ed61 CODING_STYLE: Section about mixed declarations
We had an unwritten rule about declarations having to be at beginning of
blocks. Make it a written rule.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-03-27 19:22:49 +04:00
Stefan Weil
6576b74b0b Replace Qemu by QEMU in internal documentation
The official spelling is QEMU.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-07 13:58:25 +00:00
Peter Maydell
e3c52bf2e5 CODING_STYLE: Clarify style for enum and function type names
Clarify that enum type names and function type names should follow
the CamelCase style used for structured type names.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-02-10 10:44:51 +00:00
Avi Kivity
5f070c5fb7 CODING_STYLE: explicitly allow braceless 'else if'
It's already allowed by the example; there are about 1800 instances in the
tree; and disallowing it would lead to

    if (a) {
        ...
    } else {
        if (b) {
            ...
        } else {
            if (c) {
                ...
            } else {
                if (d) {
                    ...
                } else {
                    ...
                }
            }
        }
    }

instead of

    if (a) {
        ...
    } else if (b) {
        ...
    } else if (c) {
        ...
    } else if (d) {
        ...
    } else {
        ...
    }

which is more readable.

Acked-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-29 09:33:56 -05:00
Blue Swirl
b646968336 checkpatch: adjust to QEMUisms
Change checkpatch.pl for QEMU use:
 - Root directory detection
 - Forbid tabs
 - Indent at 4 spaces
 - Allow typedefs
 - Enforce brace use even for single statement blocks
 - Don't suggest nonexistent cleanup tools

Mention the script in CODING_STYLE.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-20 20:58:56 +00:00
Blue Swirl
84174436a6 HACKING: add C type rules
Add C type rules, adapted from libvirt HACKING. Also include
a description of special QEMU scalar types.

Move typedef rule from CODING_STYLE rule 3 to HACKING rule 6
where it belongs.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-09-10 18:47:31 +00:00
Avi Kivity
77ac486263 CODING_STYLE: Reserve qemu_ prefix for library wrappers
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-19 15:27:27 -05:00
Anthony Liguori
c227f0995e Revert "Get rid of _t suffix"
In the very least, a change like this requires discussion on the list.

The naming convention is goofy and it causes a massive merge problem.  Something
like this _must_ be presented on the list first so people can provide input
and cope with it.

This reverts commit 99a0949b72.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01 16:12:16 -05:00
malc
99a0949b72 Get rid of _t suffix
Some not so obvious bits, slirp and Xen were left alone for the time
being.

Signed-off-by: malc <av1474@comtv.ru>
2009-10-01 22:45:02 +04:00
edgar_igl
1cb499fa26 Remove potentially offensive humor.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7014 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-07 02:10:16 +00:00
aliguori
e68b98dc72 Document QEMU coding style (v2) (Avi Kivity)
With the help of some Limoncino I noted several aspects of the QEMU coding
style, particularly where it differs from the Linux coding style as many
contributors work on both projects.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6976 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-05 17:40:34 +00:00