diff options
Diffstat (limited to 'arch/s390/Makefile')
| -rw-r--r-- | arch/s390/Makefile | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 68a690442be0..eee6703093c3 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -14,8 +14,18 @@ LD_BFD := elf64-s390 LDFLAGS := -m elf64_s390 KBUILD_AFLAGS_MODULE += -fPIC KBUILD_CFLAGS_MODULE += -fPIC -KBUILD_CFLAGS += -m64 KBUILD_AFLAGS += -m64 +KBUILD_CFLAGS += -m64 +aflags_dwarf := -Wa,-gdwarf-2 +KBUILD_AFLAGS_DECOMPRESSOR := -m64 -D__ASSEMBLY__ +KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),$(aflags_dwarf)) +KBUILD_CFLAGS_DECOMPRESSOR := -m64 -O2 +KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY +KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float +KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables +KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding) +KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g) +KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,)) UTS_MACHINE := s390x STACK_SIZE := 16384 CHECKFLAGS += -D__s390__ -D__s390x__ @@ -52,18 +62,14 @@ cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include # cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls -# old style option for packed stacks -ifeq ($(call cc-option-yn,-mkernel-backchain),y) -cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK -aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK -endif - -# new style option for packed stacks ifeq ($(call cc-option-yn,-mpacked-stack),y) cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK endif +KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y) +KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y) + ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) ifneq ($(call cc-option-yn,-mstack-size=8192),y) @@ -71,8 +77,11 @@ cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) endif endif -ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) -cflags-$(CONFIG_WARN_DYNAMIC_STACK) += -mwarn-dynamicstack +ifdef CONFIG_WARN_DYNAMIC_STACK + ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) + KBUILD_CFLAGS += -mwarn-dynamicstack + KBUILD_CFLAGS_DECOMPRESSOR += -mwarn-dynamicstack + endif endif ifdef CONFIG_EXPOLINE @@ -82,6 +91,7 @@ ifdef CONFIG_EXPOLINE CC_FLAGS_EXPOLINE += -mindirect-branch-table export CC_FLAGS_EXPOLINE cflags-y += $(CC_FLAGS_EXPOLINE) -DCC_USING_EXPOLINE + aflags-y += -DCC_USING_EXPOLINE endif endif @@ -102,11 +112,12 @@ KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare KBUILD_CFLAGS += -fno-asynchronous-unwind-tables $(cfi) KBUILD_AFLAGS += $(aflags-y) $(cfi) +export KBUILD_AFLAGS_DECOMPRESSOR +export KBUILD_CFLAGS_DECOMPRESSOR OBJCOPYFLAGS := -O binary -head-y := arch/s390/kernel/head.o -head-y += arch/s390/kernel/head64.o +head-y := arch/s390/kernel/head64.o # See arch/s390/Kbuild for content of core part of the kernel core-y += arch/s390/ @@ -121,7 +132,7 @@ boot := arch/s390/boot syscalls := arch/s390/kernel/syscalls tools := arch/s390/tools -all: image bzImage +all: bzImage #KBUILD_IMAGE is necessary for packaging targets like rpm-pkg, deb-pkg... KBUILD_IMAGE := $(boot)/bzImage @@ -129,7 +140,7 @@ KBUILD_IMAGE := $(boot)/bzImage install: vmlinux $(Q)$(MAKE) $(build)=$(boot) $@ -image bzImage: vmlinux +bzImage: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ zfcpdump: @@ -152,8 +163,7 @@ archprepare: # Don't use tabs in echo arguments define archhelp - echo '* image - Kernel image for IPL ($(boot)/image)' - echo '* bzImage - Compressed kernel image for IPL ($(boot)/bzImage)' + echo '* bzImage - Kernel image for IPL ($(boot)/bzImage)' echo ' install - Install kernel using' echo ' (your) ~/bin/$(INSTALLKERNEL) or' echo ' (distribution) /sbin/$(INSTALLKERNEL) or' |