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-rw-r--r--arch/s390/Makefile110
1 files changed, 54 insertions, 56 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index ba8556bb0fb1..73873e451686 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -3,9 +3,7 @@
# s390/Makefile
#
# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
+# architecture-specific flags and dependencies.
#
# Copyright (C) 1994 by Linus Torvalds
#
@@ -16,51 +14,51 @@ KBUILD_AFLAGS_MODULE += -fPIC
KBUILD_CFLAGS_MODULE += -fPIC
KBUILD_AFLAGS += -m64
KBUILD_CFLAGS += -m64
-ifeq ($(CONFIG_RELOCATABLE),y)
KBUILD_CFLAGS += -fPIE
LDFLAGS_vmlinux := -pie
-endif
aflags_dwarf := -Wa,-gdwarf-2
KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__
+ifndef CONFIG_AS_IS_LLVM
KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),$(aflags_dwarf))
-KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2
+endif
+KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2 -mpacked-stack
KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
-KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float
+KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float -mbackchain
KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables
-KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding)
+KBUILD_CFLAGS_DECOMPRESSOR += -ffreestanding
+KBUILD_CFLAGS_DECOMPRESSOR += -fno-stack-protector
+KBUILD_CFLAGS_DECOMPRESSOR += -fPIE
KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, address-of-packed-member)
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g)
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))
+KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_CC_NO_ARRAY_BOUNDS),-Wno-array-bounds)
+
UTS_MACHINE := s390x
STACK_SIZE := $(if $(CONFIG_KASAN),65536,16384)
CHECKFLAGS += -D__s390__ -D__s390x__
export LD_BFD
-mflags-$(CONFIG_MARCH_Z900) := -march=z900
-mflags-$(CONFIG_MARCH_Z990) := -march=z990
-mflags-$(CONFIG_MARCH_Z9_109) := -march=z9-109
mflags-$(CONFIG_MARCH_Z10) := -march=z10
mflags-$(CONFIG_MARCH_Z196) := -march=z196
mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12
mflags-$(CONFIG_MARCH_Z13) := -march=z13
mflags-$(CONFIG_MARCH_Z14) := -march=z14
mflags-$(CONFIG_MARCH_Z15) := -march=z15
+mflags-$(CONFIG_MARCH_Z16) := -march=z16
export CC_FLAGS_MARCH := $(mflags-y)
aflags-y += $(mflags-y)
cflags-y += $(mflags-y)
-cflags-$(CONFIG_MARCH_Z900_TUNE) += -mtune=z900
-cflags-$(CONFIG_MARCH_Z990_TUNE) += -mtune=z990
-cflags-$(CONFIG_MARCH_Z9_109_TUNE) += -mtune=z9-109
cflags-$(CONFIG_MARCH_Z10_TUNE) += -mtune=z10
cflags-$(CONFIG_MARCH_Z196_TUNE) += -mtune=z196
cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12
cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13
cflags-$(CONFIG_MARCH_Z14_TUNE) += -mtune=z14
cflags-$(CONFIG_MARCH_Z15_TUNE) += -mtune=z15
+cflags-$(CONFIG_MARCH_Z16_TUNE) += -mtune=z16
cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include
@@ -69,44 +67,38 @@ cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include
#
cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
-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 ($(call cc-option-yn,-mstack-size=8192),y)
-cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD)
-endif
-endif
-
-ifdef CONFIG_WARN_DYNAMIC_STACK
- ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y)
- KBUILD_CFLAGS += -mwarn-dynamicstack
- KBUILD_CFLAGS_DECOMPRESSOR += -mwarn-dynamicstack
+ifneq ($(call cc-option,-mstack-size=8192 -mstack-guard=128),)
+ CC_FLAGS_CHECK_STACK := -mstack-size=$(STACK_SIZE)
+ ifeq ($(call cc-option,-mstack-size=8192),)
+ CC_FLAGS_CHECK_STACK += -mstack-guard=$(CONFIG_STACK_GUARD)
endif
+ export CC_FLAGS_CHECK_STACK
+ cflags-$(CONFIG_CHECK_STACK) += $(CC_FLAGS_CHECK_STACK)
endif
ifdef CONFIG_EXPOLINE
- ifeq ($(call cc-option-yn,$(CC_FLAGS_MARCH) -mindirect-branch=thunk),y)
+ ifdef CONFIG_EXPOLINE_EXTERN
+ KBUILD_LDFLAGS_MODULE += arch/s390/lib/expoline/expoline.o
+ CC_FLAGS_EXPOLINE := -mindirect-branch=thunk-extern
+ CC_FLAGS_EXPOLINE += -mfunction-return=thunk-extern
+ else
CC_FLAGS_EXPOLINE := -mindirect-branch=thunk
CC_FLAGS_EXPOLINE += -mfunction-return=thunk
- CC_FLAGS_EXPOLINE += -mindirect-branch-table
- export CC_FLAGS_EXPOLINE
- cflags-y += $(CC_FLAGS_EXPOLINE) -DCC_USING_EXPOLINE
- aflags-y += -DCC_USING_EXPOLINE
endif
+ CC_FLAGS_EXPOLINE += -mindirect-branch-table
+ export CC_FLAGS_EXPOLINE
+ cflags-y += $(CC_FLAGS_EXPOLINE) -DCC_USING_EXPOLINE
+ aflags-y += -DCC_USING_EXPOLINE
endif
ifdef CONFIG_FUNCTION_TRACER
- ifeq ($(call cc-option-yn,-mfentry -mnop-mcount),n)
+ ifeq ($(call cc-option,-mfentry -mnop-mcount),)
# make use of hotpatch feature if the compiler supports it
cc_hotpatch := -mhotpatch=0,3
- ifeq ($(call cc-option-yn,$(cc_hotpatch)),y)
+ ifneq ($(call cc-option,$(cc_hotpatch)),)
CC_FLAGS_FTRACE := $(cc_hotpatch)
KBUILD_AFLAGS += -DCC_USING_HOTPATCH
KBUILD_CFLAGS += -DCC_USING_HOTPATCH
@@ -117,7 +109,7 @@ endif
# Test CFI features of binutils
cfi := $(call as-instr,.cfi_startproc\n.cfi_val_offset 15$(comma)-160\n.cfi_endproc,-DCONFIG_AS_CFI_VAL_OFFSET=1)
-KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
+KBUILD_CFLAGS += -mpacked-stack -mbackchain -msoft-float $(cflags-y)
KBUILD_CFLAGS += -pipe -Wno-sign-compare
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables $(cfi)
KBUILD_AFLAGS += $(aflags-y) $(cfi)
@@ -126,16 +118,7 @@ export KBUILD_CFLAGS_DECOMPRESSOR
OBJCOPYFLAGS := -O binary
-head-y := arch/s390/kernel/head64.o
-
-# See arch/s390/Kbuild for content of core part of the kernel
-core-y += arch/s390/
-
libs-y += arch/s390/lib/
-drivers-y += drivers/s390/
-
-# must be linked after kernel
-drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/
boot := arch/s390/boot
syscalls := arch/s390/kernel/syscalls
@@ -146,8 +129,8 @@ all: bzImage
#KBUILD_IMAGE is necessary for packaging targets like rpm-pkg, deb-pkg...
KBUILD_IMAGE := $(boot)/bzImage
-install: vmlinux
- $(Q)$(MAKE) $(build)=$(boot) $@
+install:
+ $(call cmd,install)
bzImage: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
@@ -155,19 +138,34 @@ bzImage: vmlinux
zfcpdump:
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-vdso_install:
- $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
-
-archclean:
- $(Q)$(MAKE) $(clean)=$(boot)
- $(Q)$(MAKE) $(clean)=$(tools)
-
archheaders:
$(Q)$(MAKE) $(build)=$(syscalls) uapi
archprepare:
$(Q)$(MAKE) $(build)=$(syscalls) kapi
$(Q)$(MAKE) $(build)=$(tools) kapi
+ifeq ($(KBUILD_EXTMOD),)
+# We need to generate vdso-offsets.h before compiling certain files in kernel/.
+# In order to do that, we should use the archprepare target, but we can't since
+# asm-offsets.h is included in some files used to generate vdso-offsets.h, and
+# asm-offsets.h is built in prepare0, for which archprepare is a dependency.
+# Therefore we need to generate the header after prepare0 has been made, hence
+# this hack.
+prepare: vdso_prepare
+vdso_prepare: prepare0
+ $(Q)$(MAKE) $(build)=arch/s390/kernel/vdso64 include/generated/vdso64-offsets.h
+ $(if $(CONFIG_COMPAT),$(Q)$(MAKE) \
+ $(build)=arch/s390/kernel/vdso32 include/generated/vdso32-offsets.h)
+
+vdso-install-y += arch/s390/kernel/vdso64/vdso64.so.dbg
+vdso-install-$(CONFIG_COMPAT) += arch/s390/kernel/vdso32/vdso32.so.dbg
+
+ifdef CONFIG_EXPOLINE_EXTERN
+modules_prepare: expoline_prepare
+expoline_prepare: scripts
+ $(Q)$(MAKE) $(build)=arch/s390/lib/expoline arch/s390/lib/expoline/expoline.o
+endif
+endif
# Don't use tabs in echo arguments
define archhelp