2016-04-27 5:40 GMT+09:00 Kees Cook <keescook@xxxxxxxxxxxx>: > On Fri, Apr 22, 2016 at 11:19 AM, Emese Revfy <re.emese@xxxxxxxxx> wrote: >> 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, arm and arm64 architectures enables plugins. >> >> This infrastructure was ported from grsecurity/PaX. It is a CII project >> supported by the Linux Foundation. >> >> Emese Revfy (6): >> Shared library support >> GCC plugin infrastructure >> The GCC plugin infrastructure supports the arm and arm64 architectures too >> Add Cyclomatic complexity plugin >> Documentations of the GCC plugin infrastructre >> Add sancov plugin >> >> >> Changes from v6: >> * Disable the sancov plugin whenever KCOV_INSTRUMENT is disabled >> (Reported-by: Huang Ying <ying.huang@xxxxxxxxxxxxxxx>) >> * Disable KCOV/sancov plugin because this is not a regular kernel code >> (Reported-by: Huang Ying <ying.huang@xxxxxxxxxxxxxxx>) >> * Removed unnecessary gcc plugin cflags >> (Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * Removed unnecessary gcc plugin aflags >> >> Changes from v5: >> * Set important properties on the external fndecl (Add sancov plugin) >> * Revert documentation change too (Shared library support) >> (Suggested-by: Kees Cook <keescook@xxxxxxxxxxxx>) >> * The GCC plugin infrastructure now supports the arm and arm64 architectures too >> (Signed-off-by: David Brown <david.brown@xxxxxxxxxx>) >> * Simplify the computation of PLUGINCC (GCC plugin infrastructure) >> (Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * Simplify the invocation of gcc-plugin.sh (GCC plugin infrastructure) >> (Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * Make use of multi-depend (Shared library support) >> (Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * Remove unnecessary exports (GCC plugin infrastructure) >> (Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * Simplify Makefile by using addprefix (GCC plugin infrastructure) >> (Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * Moved the gcc plugins from tools/ to scripts/ (GCC plugin infrastructure) >> (Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * Removed plugins from KBUILD_CFLAGS_32 (GCC plugin infrastructure) >> * Remove gcc-plugin target everywhere >> (Suggested-by and partly Written-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>) >> * There is no leaf gcc attribute in gcc-4.5 (Add sancov plugin) >> * Added support to the sancov plugin with kcov (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@xxxxxxxxx>) >> >> Changes from v2: >> * Fixed incorrectly encoded characters >> * Generate the GIMPLE, IPA, SIMPLE_IPA and RTL pass structures >> (Suggested-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>) >> * Write plugin related warning messages to stderr instead of stdout >> (Suggested-by: Kees Cook <keescook@xxxxxxxxxxxx>) >> * 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@xxxxxxxxxxxx>) >> * Removed the unnecessary example plugin > > This looks really good to me! Masahiro are there any other things you > see here that need fixing? Michal, does this look like it's ready for > -next? I'd be happy to carry it via one of my trees if you want. I am busy these days, but hopefully I will manage to find some time to review this series this weekend. -- Best Regards Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
