Date: Mon, 7 Mar 2016 00:02:08 +0100 From: Emese Revfy <re.emese@...il.com> To: linux-kbuild@...r.kernel.org Cc: pageexec@...email.hu, spender@...ecurity.net, kernel-hardening@...ts.openwall.com, mmarek@...e.com, keescook@...omium.org, linux@...musvillemoes.dk, fengguang.wu@...el.com, dvyukov@...gle.com, linux-kernel@...r.kernel.org Subject: [PATCH v5 0/5] Introduce GCC plugin infrastructure This patch set introduce the GCC plugin infrastructure with examples for testing and documentation. GCC plugins are loadable modules that provide extra features to the compiler. They are useful for runtime instrumentation and static analysis. The infrastructure supports all gcc versions from 4.5 to 6.0, building out-of-tree modules and building in a separate directory. Cross-compilation is supported too but currently only the x86 architecture enables plugins. This infrastructure was ported from grsecurity/PaX. It is a CII project supported by the Linux Foundation. Emese Revfy (5): Shared library support GCC plugin infrastructure Add Cyclomatic complexity plugin Documentations of the GCC plugin infrastructre Add sancov plugin Changes from v4: * Moved shared library support from the GCC plugin infrastructure patch into a different patch * Update gcc-*.h from PaX * Fixed gcc-common.h for gcc 6 * Added pass cloning support to the gcc pass generators * Disable all plugins in vdso because it is userland code * Add sancov gcc plugin: another use case for gcc plugin support in the kernel is when there is a feature in the latest gcc version and we would like to use it with older gcc versions as well (e.g., distros). Changes from v3: * Fix some indentation related warnings (Suggested by checkpatch.pl) * Add maintainer entries * Don't run gcc_plugin.sh when the GCC_PLUGINS option is disabled or unsupported (Reported-by: Fengguang Wu <fengguang.wu@...el.com>) Changes from v2: * Fixed incorrectly encoded characters * Generate the GIMPLE, IPA, SIMPLE_IPA and RTL pass structures (Suggested-by: Rasmus Villemoes <linux@...musvillemoes.dk>) * Write plugin related warning messages to stderr instead of stdout (Suggested-by: Kees Cook <keescook@...omium.org>) * Mention the installation of the gcc plugin headers (Documentation) Changes from v1: * Move the gcc-plugins make target into a separate Makefile because there may be a lot of plugins (Suggested-by: Rasmus Villemoes) * Simplify the dependencies of the plugin related config option (Suggested-by: Kees Cook <keescook@...omium.org>) * Removed the unnecessary example plugin --- Documentation/dontdiff | 1 + Documentation/gcc-plugins.txt | 82 ++++++++++++++++++ MAINTAINERS | 8 ++ Makefile | 41 ++++++--- arch/Kconfig | 36 ++++++++ arch/x86/Kconfig | 1 + arch/x86/entry/vdso/Makefile | 2 +- init/Makefile | 3 + scripts/Makefile.gcc-plugins | 35 ++++++++ scripts/gcc-plugin.sh | 51 +++++++++++ scripts/link-vmlinux.sh | 2 +- scripts/package/builddeb | 1 + tools/gcc/Makefile | 21 +++++ tools/gcc/cyc_complexity_plugin.c | 73 ++++++++++++++++ tools/gcc/gcc-common.h | 830 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/gcc/gcc-generate-gimple-pass.h | 175 ++++++++++++++++++++++++++++++++++++++ tools/gcc/gcc-generate-ipa-pass.h | 289 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/gcc/gcc-generate-rtl-pass.h | 175 ++++++++++++++++++++++++++++++++++++++ tools/gcc/gcc-generate-simple_ipa-pass.h | 175 ++++++++++++++++++++++++++++++++++++++ tools/gcc/sancov_plugin.c | 133 +++++++++++++++++++++++++++++ 20 files changed, 2121 insertions(+), 13 deletions(-)
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