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Kees Cook be58f71037 fortify: Add compile-time FORTIFY_SOURCE tests
While the run-time testing of FORTIFY_SOURCE is already present in
LKDTM, there is no testing of the expected compile-time detections. In
preparation for correctly supporting FORTIFY_SOURCE under Clang, adding
additional FORTIFY_SOURCE defenses, and making sure FORTIFY_SOURCE
doesn't silently regress with GCC, introduce a build-time test suite that
checks each expected compile-time failure condition.

As this is relatively backwards from standard build rules in the
sense that a successful test is actually a compile _failure_, create
a wrapper script to check for the correct errors, and wire it up as
a dummy dependency to lib/string.o, collecting the results into a log
file artifact.

Signed-off-by: Kees Cook <keescook@chromium.org>
2021-10-18 12:28:52 -07:00
arch lib/string: Move helper functions out of string.c 2021-09-25 08:20:49 -07:00
block
certs
crypto
Documentation
drivers cm4000_cs: Use struct_group() to zero struct cm4000_dev region 2021-09-25 08:20:49 -07:00
fs
include fortify: Allow strlen() and strnlen() to pass compile-time known lengths 2021-09-25 08:20:50 -07:00
init
ipc
kernel
lib fortify: Add compile-time FORTIFY_SOURCE tests 2021-10-18 12:28:52 -07:00
LICENSES
mm
net
samples
scripts fortify: Add compile-time FORTIFY_SOURCE tests 2021-10-18 12:28:52 -07:00
security fortify: Explicitly disable Clang support 2021-09-25 08:20:49 -07:00
sound
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS fortify: Add compile-time FORTIFY_SOURCE tests 2021-10-18 12:28:52 -07:00
Makefile
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.