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.

Will Deacon committed 6 years ago

Commit 5429ef61 parent 8f3d9f36 files · +10 −13Browse files

Showing the changes to scripts (1 of 6 files). Show all

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scripts/gcc-plugins/Kconfig+1−1

@@ -8,7 +8,7 @@ config HAVE_GCC_PLUGINS · 7 unmodified lines
8	menuconfig GCC_PLUGINS	8	menuconfig GCC_PLUGINS
9	bool "GCC plugins"	9	bool "GCC plugins"
10	depends on HAVE_GCC_PLUGINS	10	depends on HAVE_GCC_PLUGINS
11	depends on CC_IS_GCC && GCC_VERSION >= 40800	11	depends on CC_IS_GCC
12	depends on $(success,$(srctree)/scripts/gcc-plugin.sh $(CC))	12	depends on $(success,$(srctree)/scripts/gcc-plugin.sh $(CC))
13	default y	13	default y
14	help	14	help

compiler/gcc: Raise minimum GCC version for kernel builds to 4.8

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