diff options
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 52 |
1 files changed, 31 insertions, 21 deletions
diff --git a/init/Kconfig b/init/Kconfig index 1fecd5b7bad8..22ca30f6a6bd 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1,20 +1,12 @@ -config ARCH - string - option env="ARCH" - -config KERNELVERSION - string - option env="KERNELVERSION" - config DEFCONFIG_LIST string depends on !UML option defconfig_list - default "/lib/modules/$UNAME_RELEASE/.config" + default "/lib/modules/$(shell,uname --release)/.config" default "/etc/kernel-config" - default "/boot/config-$UNAME_RELEASE" - default "$ARCH_DEFCONFIG" - default "arch/$ARCH/defconfig" + default "/boot/config-$(shell,uname --release)" + default ARCH_DEFCONFIG + default "arch/$(ARCH)/defconfig" config CONSTRUCTORS bool @@ -54,15 +46,6 @@ config INIT_ENV_ARG_LIMIT Maximum of each of the number of arguments and environment variables passed to init from the kernel command line. - -config CROSS_COMPILE - string "Cross-compiler tool prefix" - help - Same as running 'make CROSS_COMPILE=prefix-' but stored for - default make runs in this kernel build directory. You don't - need to set this unless you want the configured kernel build - directory to select the cross-compiler automatically. - config COMPILE_TEST bool "Compile also drivers which will not load" depends on !UML @@ -1038,6 +1021,33 @@ config CC_OPTIMIZE_FOR_SIZE endchoice +config HAVE_LD_DEAD_CODE_DATA_ELIMINATION + bool + help + This requires that the arch annotates or otherwise protects + its external entry points from being discarded. Linker scripts + must also merge .text.*, .data.*, and .bss.* correctly into + output sections. Care must be taken not to pull in unrelated + sections (e.g., '.text.init'). Typically '.' in section names + is used to distinguish them from label names / C identifiers. + +config LD_DEAD_CODE_DATA_ELIMINATION + bool "Dead code and data elimination (EXPERIMENTAL)" + depends on HAVE_LD_DEAD_CODE_DATA_ELIMINATION + depends on EXPERT + help + Select this if the architecture wants to do dead code and + data elimination with the linker by compiling with + -ffunction-sections -fdata-sections, and linking with + --gc-sections. + + This can reduce on disk and in-memory size of the kernel + code and static data, particularly for small configs and + on small systems. This has the possibility of introducing + silently broken kernel if the required annotations are not + present. This option is not well tested yet, so use at your + own risk. + config SYSCTL bool |