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| author | Will Deacon <will@kernel.org> | 2020-01-22 19:38:21 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-04-15 21:36:20 +0100 |
| commit | 5429ef62bcf360aae06740cbe065be01e5cfb6fc (patch) | |
| tree | 5b9078d844f38350b67e5e4c96b414aaf5acc56d /init | |
| parent | 8f3d9f354286745c751374f5f1fcafee6b3f3136 (diff) | |
| download | lwn-5429ef62bcf360aae06740cbe065be01e5cfb6fc.tar.gz lwn-5429ef62bcf360aae06740cbe065be01e5cfb6fc.zip | |
compiler/gcc: Raise minimum GCC version for kernel builds to 4.8
It is very rare to see versions of GCC prior to 4.8 being used to build
the mainline kernel. These old compilers are also know to have codegen
issues which can lead to silent miscompilation:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145
Raise the minimum GCC version for kernel build to 4.8 and remove some
tautological Kconfig dependencies as a consequence.
Cc: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index 9e22ee8fbd75..035d38a4f9ad 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1285,7 +1285,6 @@ config LD_DEAD_CODE_DATA_ELIMINATION bool "Dead code and data elimination (EXPERIMENTAL)" depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION depends on EXPERT - depends on !(FUNCTION_TRACER && CC_IS_GCC && GCC_VERSION < 40800) depends on $(cc-option,-ffunction-sections -fdata-sections) depends on $(ld-option,--gc-sections) help |