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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-13 17:40:34 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-13 17:40:34 +0200 |
| commit | be779f03d563981c65cc7417cc5e0dbbc5b89d30 (patch) | |
| tree | ce0638b1f449e2fe45419567ee287e2c97847836 /arch/x86 | |
| parent | Merge tag 'acpi-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff) | |
| parent | linux/linkage.h: replace VMLINUX_SYMBOL_STR() with __stringify() (diff) | |
| download | linux-be779f03d563981c65cc7417cc5e0dbbc5b89d30.tar.xz linux-be779f03d563981c65cc7417cc5e0dbbc5b89d30.zip | |
Merge tag 'kbuild-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- fix some bugs introduced by the recent Kconfig syntax extension
- add some symbols about compiler information in Kconfig, such as
CC_IS_GCC, CC_IS_CLANG, GCC_VERSION, etc.
- test compiler capability for the stack protector in Kconfig, and
clean-up Makefile
- test compiler capability for GCC-plugins in Kconfig, and clean-up
Makefile
- allow to enable GCC-plugins for COMPILE_TEST
- test compiler capability for KCOV in Kconfig and correct dependency
- remove auto-detect mode of the GCOV format, which is now more nicely
handled in Kconfig
- test compiler capability for mprofile-kernel on PowerPC, and clean-up
Makefile
- misc cleanups
* tag 'kbuild-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
linux/linkage.h: replace VMLINUX_SYMBOL_STR() with __stringify()
kconfig: fix localmodconfig
sh: remove no-op macro VMLINUX_SYMBOL()
powerpc/kbuild: move -mprofile-kernel check to Kconfig
Documentation: kconfig: add recommended way to describe compiler support
gcc-plugins: disable GCC_PLUGIN_STRUCTLEAK_BYREF_ALL for COMPILE_TEST
gcc-plugins: allow to enable GCC_PLUGINS for COMPILE_TEST
gcc-plugins: test plugin support in Kconfig and clean up Makefile
gcc-plugins: move GCC version check for PowerPC to Kconfig
kcov: test compiler capability in Kconfig and correct dependency
gcov: remove CONFIG_GCOV_FORMAT_AUTODETECT
arm64: move GCC version check for ARCH_SUPPORTS_INT128 to Kconfig
kconfig: add CC_IS_CLANG and CLANG_VERSION
kconfig: add CC_IS_GCC and GCC_VERSION
stack-protector: test compiler capability in Kconfig and drop AUTO mode
kbuild: fix endless syncconfig in case arch Makefile sets CROSS_COMPILE
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Kconfig | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 297789aef9fa..455a670ab239 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -130,7 +130,7 @@ config X86 select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD if X86_64 select HAVE_ARCH_VMAP_STACK if X86_64 select HAVE_ARCH_WITHIN_STACK_FRAMES - select HAVE_CC_STACKPROTECTOR + select HAVE_CC_STACKPROTECTOR if CC_HAS_SANE_STACKPROTECTOR select HAVE_CMPXCHG_DOUBLE select HAVE_CMPXCHG_LOCAL select HAVE_CONTEXT_TRACKING if X86_64 @@ -346,6 +346,15 @@ config PGTABLE_LEVELS default 2 source "init/Kconfig" + +config CC_HAS_SANE_STACKPROTECTOR + bool + default $(success,$(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC)) if 64BIT + default $(success,$(srctree)/scripts/gcc-x86_32-has-stack-protector.sh $(CC)) + help + We have to make sure stack protector is unconditionally disabled if + the compiler produces broken code. + source "kernel/Kconfig.freezer" menu "Processor type and features" |