llvm-project/compiler-rt
Kostya Kortchinsky 1f066a717c [scudo][standalone] Implement checksumming functions
Summary:
This CL implements the checksumming functions. This departs from the
current Scudo code in one aspect: the software version is no longer
CRC32 but a BSD checksum. This is because the software CRC32 was too
impactful in terms of performances, the BSD checksum has no array
lookup which is better (and saves 1KB of data).

As with the current version, we only flip the CRC compiler flag for
a single compilation unit by default, to allow for a library compiled
with HW CRC32 to work on a system without HW CRC32.

There is some platform & hardware specific code in those files, but
since departs from a mere platform split, it felt right to me to have
it that way.

Reviewers: morehouse, eugenis, vitalybuka, hctim, mcgrathr

Reviewed By: morehouse

Subscribers: mgorny, delcypher, jfb, jdoerfert, #sanitizers, llvm-commits

Tags: #llvm, #sanitizers

Differential Revision: https://reviews.llvm.org/D59116

llvm-svn: 355923
2019-03-12 14:46:31 +00:00
..
cmake Remove esan. 2019-03-11 20:23:40 +00:00
docs [sanitizers] Make it possible to XFAIL on the effective target, not just the default. 2016-08-09 11:50:53 +00:00
include Remove esan. 2019-03-11 20:23:40 +00:00
lib [scudo][standalone] Implement checksumming functions 2019-03-12 14:46:31 +00:00
test Remove ASan asm instrumentation. 2019-03-11 21:50:10 +00:00
unittests [Darwin][NFC] Refactor throttling of 64bit sanitizer tests on Darwin 2019-02-27 19:06:20 +00:00
utils Update the ioctl(2) list in sanitizers with NetBSD 8.99.34 2019-02-05 22:20:25 +00:00
www Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
.arcconfig [compiler-rt] Set up .arcconfig to point to new Diffusion CRT repository 2017-12-06 20:55:32 +00:00
.gitignore Add .pyc files to .gitignore to compiler-rt 2017-07-24 21:51:12 +00:00
CMakeLists.txt [Sanitizer] Add 'dispatch' feature to be used in compiler-rt tests 2019-03-07 18:15:23 +00:00
CODE_OWNERS.TXT
CREDITS.TXT
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
README.txt

README.txt

Compiler-RT
================================

This directory and its subdirectories contain source code for the compiler
support routines.

Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.

================================