diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 26 | ||||
| -rw-r--r-- | init/Makefile | 5 |
2 files changed, 23 insertions, 8 deletions
diff --git a/init/Kconfig b/init/Kconfig index ec1021fd3371..f4534c58342d 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1234,20 +1234,26 @@ choice default CC_OPTIMIZE_FOR_PERFORMANCE config CC_OPTIMIZE_FOR_PERFORMANCE - bool "Optimize for performance" + bool "Optimize for performance (-O2)" help This is the default optimization level for the kernel, building with the "-O2" compiler flag for best performance and most helpful compile-time warnings. -config CC_OPTIMIZE_FOR_SIZE - bool "Optimize for size" +config CC_OPTIMIZE_FOR_PERFORMANCE_O3 + bool "Optimize more for performance (-O3)" + depends on ARC imply CC_DISABLE_WARN_MAYBE_UNINITIALIZED # avoid false positives help - Enabling this option will pass "-Os" instead of "-O2" to - your compiler resulting in a smaller kernel. + Choosing this option will pass "-O3" to your compiler to optimize + the kernel yet more for performance. - If unsure, say N. +config CC_OPTIMIZE_FOR_SIZE + bool "Optimize for size (-Os)" + imply CC_DISABLE_WARN_MAYBE_UNINITIALIZED # avoid false positives + help + Choosing this option will pass "-Os" to your compiler resulting + in a smaller kernel. endchoice @@ -2014,6 +2020,14 @@ config MODVERSIONS make them incompatible with the kernel you are running. If unsure, say N. +config ASM_MODVERSIONS + bool + default HAVE_ASM_MODVERSIONS && MODVERSIONS + help + This enables module versioning for exported symbols also from + assembly. This can be enabled only when the target architecture + supports it. + config MODULE_REL_CRCS bool depends on MODVERSIONS diff --git a/init/Makefile b/init/Makefile index a3e5ce2bcf08..6246a06364d0 100644 --- a/init/Makefile +++ b/init/Makefile @@ -33,5 +33,6 @@ $(obj)/version.o: include/generated/compile.h silent_chk_compile.h = : include/generated/compile.h: FORCE @$($(quiet)chk_compile.h) - $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \ - "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" "$(CC) $(KBUILD_CFLAGS)" + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkcompile_h $@ \ + "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CONFIG_PREEMPT)" \ + "$(CONFIG_PREEMPT_RT)" "$(CC) $(KBUILD_CFLAGS)" |