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| author | Kees Cook <keescook@chromium.org> | 2021-10-20 10:35:53 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2021-10-21 08:41:38 -0700 |
| commit | 8bd51a2ba3c3bb81a693fff17e983d02d914c14c (patch) | |
| tree | e92bba2923437c4ee9590f821c470dedb4f2b2b2 /scripts/gcc-plugins | |
| parent | 6eb4bd92c1cedcaadd65868b7ade396b422be4be (diff) | |
| download | linux-8bd51a2ba3c3bb81a693fff17e983d02d914c14c.tar.gz linux-8bd51a2ba3c3bb81a693fff17e983d02d914c14c.tar.bz2 linux-8bd51a2ba3c3bb81a693fff17e983d02d914c14c.zip | |
gcc-plugins: Explicitly document purpose and deprecation schedule
GCC plugins should only exist when some compiler feature needs to be
proven but does not exist in either GCC nor Clang. For example, if a
desired feature is already in Clang, it should be added to GCC upstream.
Document this explicitly.
Additionally, mark the plugins with matching upstream GCC features as
removable past their respective GCC versions.
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: linux-hardening@vger.kernel.org
Cc: linux-kbuild@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Cc: llvm@lists.linux.dev
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20211020173554.38122-2-keescook@chromium.org
Diffstat (limited to 'scripts/gcc-plugins')
| -rw-r--r-- | scripts/gcc-plugins/Kconfig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/gcc-plugins/Kconfig b/scripts/gcc-plugins/Kconfig index ab9eb4cbe33a..7c7ba3b0d3cd 100644 --- a/scripts/gcc-plugins/Kconfig +++ b/scripts/gcc-plugins/Kconfig @@ -37,6 +37,8 @@ config GCC_PLUGIN_CYC_COMPLEXITY config GCC_PLUGIN_SANCOV bool + # Plugin can be removed once the kernel only supports GCC 6+ + depends on !CC_HAS_SANCOV_TRACE_PC help This plugin inserts a __sanitizer_cov_trace_pc() call at the start of basic blocks. It supports all gcc versions with plugin support (from @@ -83,8 +85,6 @@ config GCC_PLUGIN_RANDSTRUCT the existing seed and will be removed by a make mrproper or make distclean. - Note that the implementation requires gcc 4.7 or newer. - This plugin was ported from grsecurity/PaX. More information at: * https://grsecurity.net/ * https://pax.grsecurity.net/ |