1 # SPDX-License-Identifier: GPL-2.0 << 2 # 1 # 3 # s390/Makefile !! 2 # alpha/Makefile 4 # 3 # 5 # This file is included by the global makefile !! 4 # This file is subject to the terms and conditions of the GNU General Public 6 # architecture-specific flags and dependencies !! 5 # License. See the file "COPYING" in the main directory of this archive >> 6 # for more details. 7 # 7 # 8 # Copyright (C) 1994 by Linus Torvalds 8 # Copyright (C) 1994 by Linus Torvalds 9 # 9 # 10 10 11 LD_BFD := elf64-s390 !! 11 NM := $(NM) -B 12 KBUILD_LDFLAGS := -m elf64_s390 << 13 KBUILD_AFLAGS_MODULE += -fPIC << 14 KBUILD_CFLAGS_MODULE += -fPIC << 15 KBUILD_AFLAGS += -m64 << 16 KBUILD_CFLAGS += -m64 << 17 KBUILD_CFLAGS += -fPIC << 18 LDFLAGS_vmlinux := -no-pie --emit-relocs --dis << 19 extra_tools := relocs << 20 aflags_dwarf := -Wa,-gdwarf-2 << 21 KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) - << 22 ifndef CONFIG_AS_IS_LLVM << 23 KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DE << 24 endif << 25 KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) - << 26 KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH << 27 KBUILD_CFLAGS_DECOMPRESSOR += -D__DECOMPRESSOR << 28 KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null << 29 KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronou << 30 KBUILD_CFLAGS_DECOMPRESSOR += -ffreestanding << 31 KBUILD_CFLAGS_DECOMPRESSOR += -fno-stack-prote << 32 KBUILD_CFLAGS_DECOMPRESSOR += -fPIE << 33 KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disabl << 34 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DE << 35 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DE << 36 KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_CC << 37 << 38 UTS_MACHINE := s390x << 39 STACK_SIZE := $(if $(CONFIG_KASAN),65536, << 40 CHECKFLAGS += -D__s390__ -D__s390x__ << 41 << 42 export LD_BFD << 43 << 44 mflags-$(CONFIG_MARCH_Z10) := -march=z10 << 45 mflags-$(CONFIG_MARCH_Z196) := -march=z196 << 46 mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 << 47 mflags-$(CONFIG_MARCH_Z13) := -march=z13 << 48 mflags-$(CONFIG_MARCH_Z14) := -march=z14 << 49 mflags-$(CONFIG_MARCH_Z15) := -march=z15 << 50 mflags-$(CONFIG_MARCH_Z16) := -march=z16 << 51 << 52 export CC_FLAGS_MARCH := $(mflags-y) << 53 << 54 aflags-y += $(mflags-y) << 55 cflags-y += $(mflags-y) << 56 << 57 cflags-$(CONFIG_MARCH_Z10_TUNE) += -mt << 58 cflags-$(CONFIG_MARCH_Z196_TUNE) += -mt << 59 cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mt << 60 cflags-$(CONFIG_MARCH_Z13_TUNE) += -mt << 61 cflags-$(CONFIG_MARCH_Z14_TUNE) += -mt << 62 cflags-$(CONFIG_MARCH_Z15_TUNE) += -mt << 63 cflags-$(CONFIG_MARCH_Z16_TUNE) += -mt << 64 << 65 cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/incl << 66 << 67 # << 68 # Prevent tail-call optimizations, to get clea << 69 # << 70 cflags-$(CONFIG_FRAME_POINTER) += -fno-optimiz << 71 << 72 KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y) << 73 KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y) << 74 << 75 ifneq ($(call cc-option,-mstack-size=8192 -mst << 76 CC_FLAGS_CHECK_STACK := -mstack-size=$(STACK << 77 ifeq ($(call cc-option,-mstack-size=8192),) << 78 CC_FLAGS_CHECK_STACK += -mstack-guard=$(CO << 79 endif << 80 export CC_FLAGS_CHECK_STACK << 81 cflags-$(CONFIG_CHECK_STACK) += $(CC_FLAGS_C << 82 endif << 83 12 84 ifdef CONFIG_EXPOLINE !! 13 LINKFLAGS = -static -T arch/alpha/vmlinux.lds -N #-relax 85 ifdef CONFIG_EXPOLINE_EXTERN !! 14 CFLAGS := $(CFLAGS) -pipe -mno-fp-regs -ffixed-8 86 CC_FLAGS_EXPOLINE := -mindirect-branch=thu !! 15 87 CC_FLAGS_EXPOLINE += -mfunction-return=thu !! 16 # Determine if we can use the BWX instructions with GAS. 88 else !! 17 old_gas := $(shell if $(AS) --version 2>&1 | grep 'version 2.7' > /dev/null; then echo y; else echo n; fi) 89 CC_FLAGS_EXPOLINE := -mindirect-branch=thu !! 18 90 CC_FLAGS_EXPOLINE += -mfunction-return=thu !! 19 # Determine if GCC understands the -mcpu= option. 91 endif !! 20 have_mcpu := $(shell if $(CC) -mcpu=ev5 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi) 92 CC_FLAGS_EXPOLINE += -mindirect-branch-table !! 21 93 export CC_FLAGS_EXPOLINE !! 22 have_mcpu_pca56 := $(shell if $(CC) -mcpu=pca56 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi) 94 cflags-y += $(CC_FLAGS_EXPOLINE) -DCC_USING_ !! 23 95 aflags-y += -DCC_USING_EXPOLINE !! 24 have_mcpu_ev6 := $(shell if $(CC) -mcpu=ev6 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi) 96 endif << 97 25 98 ifdef CONFIG_FUNCTION_TRACER !! 26 have_mcpu_ev67 := $(shell if $(CC) -mcpu=ev67 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi) 99 ifeq ($(call cc-option,-mfentry -mnop-mcount !! 27 100 # make use of hotpatch feature if the comp !! 28 # Turn on the proper cpu optimizations. 101 cc_hotpatch := -mhotpatch=0,3 !! 29 ifeq ($(have_mcpu),y) 102 ifneq ($(call cc-option,$(cc_hotpatch)),) !! 30 # If GENERIC, make sure to turn off any instruction set extensions that 103 CC_FLAGS_FTRACE := $(cc_hotpatch) !! 31 # the host compiler might have on by default. Given that EV4 and EV5 104 KBUILD_AFLAGS += -DCC_USING_HOTPATCH !! 32 # have the same instruction set, prefer EV5 because an EV5 schedule is 105 KBUILD_CFLAGS += -DCC_USING_HOTPATCH !! 33 # more likely to keep an EV4 processor busy than vice-versa. >> 34 mcpu_done := n >> 35 ifeq ($(CONFIG_ALPHA_GENERIC),y) >> 36 CFLAGS := $(CFLAGS) -mcpu=ev5 >> 37 mcpu_done := y >> 38 endif >> 39 ifeq ($(mcpu_done)$(CONFIG_ALPHA_SX164)$(have_mcpu_pca56),nyy) >> 40 CFLAGS := $(CFLAGS) -mcpu=pca56 >> 41 mcpu_done := y >> 42 endif >> 43 ifeq ($(mcpu_done)$(CONFIG_ALPHA_POLARIS)$(have_mcpu_pca56),nyy) >> 44 CFLAGS := $(CFLAGS) -mcpu=pca56 >> 45 mcpu_done := y >> 46 endif >> 47 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV4),ny) >> 48 CFLAGS := $(CFLAGS) -mcpu=ev4 >> 49 mcpu_done := y >> 50 endif >> 51 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV56),ny) >> 52 CFLAGS := $(CFLAGS) -mcpu=ev56 >> 53 mcpu_done := y >> 54 endif >> 55 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV5),ny) >> 56 CFLAGS := $(CFLAGS) -mcpu=ev5 >> 57 mcpu_done := y >> 58 endif >> 59 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV67)$(have_mcpu_ev67),nyy) >> 60 CFLAGS := $(CFLAGS) -mcpu=ev67 >> 61 mcpu_done := y >> 62 endif >> 63 ifeq ($(mcpu_done)$(CONFIG_ALPHA_EV6),ny) >> 64 ifeq ($(have_mcpu_ev6),y) >> 65 CFLAGS := $(CFLAGS) -mcpu=ev6 >> 66 else >> 67 ifeq ($(have_mcpu_pca56),y) >> 68 CFLAGS := $(CFLAGS) -mcpu=pca56 >> 69 else >> 70 CFLAGS := $(CFLAGS) -mcpu=ev56 >> 71 endif 106 endif 72 endif >> 73 mcpu_done := y 107 endif 74 endif 108 endif 75 endif 109 76 110 # Test CFI features of binutils !! 77 # For TSUNAMI, we must have the assembler not emulate our instructions. 111 cfi := $(call as-instr,.cfi_startproc\n.cfi_va !! 78 # The same is true for IRONGATE, POLARIS, PYXIS. >> 79 # BWX is most important, but we don't really want any emulation ever. >> 80 >> 81 ifeq ($(old_gas),y) >> 82 # How do we do #error in make? >> 83 CFLAGS := --error-please-upgrade-your-assembler >> 84 endif >> 85 CFLAGS := $(CFLAGS) -Wa,-mev6 112 86 113 KBUILD_CFLAGS += -mpacked-stack -mbackchain !! 87 HEAD := arch/alpha/kernel/head.o 114 KBUILD_CFLAGS += -pipe -Wno-sign-compare << 115 KBUILD_CFLAGS += -fno-asynchronous-unwind-ta << 116 KBUILD_AFLAGS += $(aflags-y) $(cfi) << 117 export KBUILD_AFLAGS_DECOMPRESSOR << 118 export KBUILD_CFLAGS_DECOMPRESSOR << 119 << 120 OBJCOPYFLAGS := -O binary << 121 << 122 libs-y += arch/s390/lib/ << 123 << 124 boot := arch/s390/boot << 125 syscalls := arch/s390/kernel/syscalls << 126 tools := arch/s390/tools << 127 << 128 all: bzImage << 129 << 130 #KBUILD_IMAGE is necessary for packaging targe << 131 KBUILD_IMAGE := $(boot)/bzImage << 132 << 133 install: << 134 $(call cmd,install) << 135 << 136 bzImage: vmlinux << 137 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ << 138 << 139 zfcpdump: << 140 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ << 141 << 142 archheaders: << 143 $(Q)$(MAKE) $(build)=$(syscalls) uapi << 144 << 145 archprepare: << 146 $(Q)$(MAKE) $(build)=$(syscalls) kapi << 147 $(Q)$(MAKE) $(build)=$(tools) kapi $(e << 148 ifeq ($(KBUILD_EXTMOD),) << 149 # We need to generate vdso-offsets.h before co << 150 # In order to do that, we should use the archp << 151 # asm-offsets.h is included in some files used << 152 # asm-offsets.h is built in prepare0, for whic << 153 # Therefore we need to generate the header aft << 154 # this hack. << 155 prepare: vdso_prepare << 156 vdso_prepare: prepare0 << 157 $(Q)$(MAKE) $(build)=arch/s390/kernel/ << 158 $(if $(CONFIG_COMPAT),$(Q)$(MAKE) \ << 159 $(build)=arch/s390/kernel/vdso << 160 88 161 vdso-install-y += arch/s390/k !! 89 SUBDIRS := $(SUBDIRS) arch/alpha/kernel arch/alpha/mm arch/alpha/lib \ 162 vdso-install-$(CONFIG_COMPAT) += arch/s390/k !! 90 arch/alpha/math-emu >> 91 CORE_FILES := arch/alpha/kernel/kernel.o arch/alpha/mm/mm.o $(CORE_FILES) 163 92 >> 93 ifeq ($(CONFIG_MATHEMU),y) >> 94 CORE_FILES := $(CORE_FILES) arch/alpha/math-emu/math-emu.o 164 endif 95 endif 165 96 166 # Don't use tabs in echo arguments !! 97 LIBS := $(TOPDIR)/arch/alpha/lib/lib.a $(LIBS) $(TOPDIR)/arch/alpha/lib/lib.a 167 define archhelp !! 98 168 echo '* bzImage - Kernel image for !! 99 MAKEBOOT = $(MAKE) -C arch/alpha/boot 169 echo ' install - Install kernel us !! 100 170 echo ' (your) ~/bin/$(IN !! 101 rawboot: 171 echo ' (distribution) /s !! 102 @$(MAKEBOOT) rawboot 172 echo ' install to $$(INS !! 103 173 endef !! 104 # >> 105 # My boot writes directly to a specific disk partition, I doubt most >> 106 # people will want to do that without changes.. >> 107 # >> 108 msb my-special-boot: >> 109 @$(MAKEBOOT) msb >> 110 >> 111 bootimage: >> 112 @$(MAKEBOOT) bootimage >> 113 >> 114 srmboot: >> 115 @$(MAKEBOOT) srmboot >> 116 >> 117 archclean: >> 118 @$(MAKE) -C arch/alpha/kernel clean >> 119 @$(MAKEBOOT) clean >> 120 rm -f arch/alpha/vmlinux.lds >> 121 >> 122 archmrproper: >> 123 >> 124 archdep: >> 125 @$(MAKEBOOT) dep >> 126 >> 127 vmlinux: arch/alpha/vmlinux.lds >> 128 >> 129 arch/alpha/vmlinux.lds: arch/alpha/vmlinux.lds.in >> 130 $(CPP) $(CPPFLAGS) -xc -P arch/alpha/vmlinux.lds.in -o arch/alpha/vmlinux.lds >> 131 >> 132 bootpfile: >> 133 @$(MAKEBOOT) bootpfile >> 134 >> 135 bootpzfile: >> 136 @$(MAKEBOOT) bootpzfile
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