Skip to content

Commit

Permalink
Initial Version
Browse files Browse the repository at this point in the history
  • Loading branch information
[email protected] committed Feb 1, 2013
0 parents commit 3dae637
Show file tree
Hide file tree
Showing 5,153 changed files with 1,693,725 additions and 0 deletions.
The diff you're trying to view is too large. We only load the first 3000 changed files.
31 changes: 31 additions & 0 deletions AUTHOR
Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
The following people at Sycure Lab are actively working on DECAF:

Heng Yin
Lok Yan
Aravind Prakash
Andrew Henderson
Xunchao Hu
Ming Liu
Haoru Zhao
Shengming Xu


Former developers include:

Eknath Venkataramani
Manjukumar Jayachandra


DECAF inherits a portion of code from TEMU from the BitBlaze group. TEMU developers included:
Heng Yin
David Brumley
Juan Caballero
Cody Hartwig
Ivan Jager
Min Gyung Kang
Zhenkai Liang
Stephen McCamant
James Newsome
Pongsin Poosankam
Prateek Saxena
Jiang Zheng
85 changes: 85 additions & 0 deletions CODING_STYLE
Original file line number Diff line number Diff line change
@@ -0,0 +1,85 @@
Qemu Coding Style
=================

Please use the script checkpatch.pl in the scripts directory to check
patches before submitting.

1. Whitespace

Of course, the most important aspect in any coding style is whitespace.
Crusty old coders who have trouble spotting the glasses on their noses
can tell the difference between a tab and eight spaces from a distance
of approximately fifteen parsecs. Many a flamewar have been fought and
lost on this issue.

QEMU indents are four spaces. Tabs are never used, except in Makefiles
where they have been irreversibly coded into the syntax.
Spaces of course are superior to tabs because:

- You have just one way to specify whitespace, not two. Ambiguity breeds
mistakes.
- The confusion surrounding 'use tabs to indent, spaces to justify' is gone.
- Tab indents push your code to the right, making your screen seriously
unbalanced.
- Tabs will be rendered incorrectly on editors who are misconfigured not
to use tab stops of eight positions.
- Tabs are rendered badly in patches, causing off-by-one errors in almost
every line.
- It is the QEMU coding style.

Do not leave whitespace dangling off the ends of lines.

2. Line width

Lines are 80 characters; not longer.

Rationale:
- Some people like to tile their 24" screens with a 6x4 matrix of 80x24
xterms and use vi in all of them. The best way to punish them is to
let them keep doing it.
- Code and especially patches is much more readable if limited to a sane
line length. Eighty is traditional.
- It is the QEMU coding style.

3. Naming

Variables are lower_case_with_underscores; easy to type and read. Structured
type names are in CamelCase; harder to type but standing out. Scalar type
names are lower_case_with_underscores_ending_with_a_t, like the POSIX
uint64_t and family. Note that this last convention contradicts POSIX
and is therefore likely to be changed.

When wrapping standard library functions, use the prefix qemu_ to alert
readers that they are seeing a wrapped version; otherwise avoid this prefix.

4. Block structure

Every indented statement is braced; even if the block contains just one
statement. The opening brace is on the line that contains the control
flow statement that introduces the new block; the closing brace is on the
same line as the else keyword, or on a line by itself if there is no else
keyword. Example:

if (a == 5) {
printf("a was 5.\n");
} else if (a == 6) {
printf("a was 6.\n");
} else {
printf("a was something else entirely.\n");
}

Note that 'else if' is considered a single statement; otherwise a long if/
else if/else if/.../else sequence would need an indent for every else
statement.

An exception is the opening brace for a function; for reasons of tradition
and clarity it comes on a line by itself:

void a_function(void)
{
do_something();
}

Rationale: a consistent (except for functions...) bracing style reduces
ambiguity and avoids needless churn when lines are added or removed.
Furthermore, it is the QEMU coding style.
Loading

0 comments on commit 3dae637

Please sign in to comment.