| # |
| # Copyright (C) 2002 Jeff Dike (jdike@karaya.com) |
| # Licensed under the GPL |
| # |
| |
| ARCH_DIR := arch/um |
| OS := $(shell uname -s) |
| # We require bash because the vmlinux link and loader script cpp use bash |
| # features. |
| SHELL := /bin/bash |
| |
| filechk_gen_header = $< |
| |
| core-y += $(ARCH_DIR)/kernel/ \ |
| $(ARCH_DIR)/drivers/ \ |
| $(ARCH_DIR)/os-$(OS)/ |
| |
| # Have to precede the include because the included Makefiles reference them. |
| SYMLINK_HEADERS := archparam.h system.h sigcontext.h processor.h ptrace.h \ |
| arch-signal.h module.h vm-flags.h |
| SYMLINK_HEADERS := $(foreach header,$(SYMLINK_HEADERS),include/asm-um/$(header)) |
| |
| # XXX: The "os" symlink is only used by arch/um/include/os.h, which includes |
| # ../os/include/file.h |
| # |
| # These are cleaned up during mrproper. Please DO NOT fix it again, this is |
| # the Correct Thing(tm) to do! |
| ARCH_SYMLINKS = include/asm-um/arch $(ARCH_DIR)/include/sysdep $(ARCH_DIR)/os \ |
| $(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h |
| |
| GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h |
| |
| um-modes-$(CONFIG_MODE_TT) += tt |
| um-modes-$(CONFIG_MODE_SKAS) += skas |
| |
| MODE_INCLUDE += $(foreach mode,$(um-modes-y),\ |
| -I$(srctree)/$(ARCH_DIR)/kernel/$(mode)/include) |
| |
| MAKEFILES-INCL += $(foreach mode,$(um-modes-y),\ |
| $(srctree)/$(ARCH_DIR)/Makefile-$(mode)) |
| |
| ifneq ($(MAKEFILES-INCL),) |
| include $(MAKEFILES-INCL) |
| endif |
| |
| ARCH_INCLUDE := -I$(ARCH_DIR)/include |
| SYS_DIR := $(ARCH_DIR)/include/sysdep-$(SUBARCH) |
| |
| include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH) |
| |
| core-y += $(SUBARCH_CORE) |
| libs-y += $(SUBARCH_LIBS) |
| |
| # -Derrno=kernel_errno - This turns all kernel references to errno into |
| # kernel_errno to separate them from the libc errno. This allows -fno-common |
| # in CFLAGS. Otherwise, it would cause ld to complain about the two different |
| # errnos. |
| |
| CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ |
| $(ARCH_INCLUDE) $(MODE_INCLUDE) |
| |
| USER_CFLAGS := $(patsubst -I%,,$(CFLAGS)) |
| USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \ |
| $(MODE_INCLUDE) $(ARCH_USER_CFLAGS) |
| CFLAGS += -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask |
| CFLAGS += $(call cc-option,-fno-unit-at-a-time,) |
| |
| #This will adjust *FLAGS accordingly to the platform. |
| include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS) |
| |
| # These are needed for clean and mrproper, since in that case .config is not |
| # included; the values here are meaningless |
| |
| CONFIG_NEST_LEVEL ?= 0 |
| CONFIG_KERNEL_HALF_GIGS ?= 0 |
| |
| SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000) |
| |
| ifeq ($(CONFIG_MODE_SKAS), y) |
| $(SYS_HEADERS) : $(ARCH_DIR)/include/skas_ptregs.h |
| endif |
| |
| .PHONY: linux |
| |
| all: linux |
| |
| linux: vmlinux |
| ln -f $< $@ |
| |
| define archhelp |
| echo '* linux - Binary kernel image (./linux) - for backward' |
| echo ' compatibility only, this creates a hard link to the' |
| echo ' real kernel binary, the the "vmlinux" binary you' |
| echo ' find in the kernel root.' |
| endef |
| |
| $(shell cd $(ARCH_DIR) && ln -sf Kconfig_$(SUBARCH) Kconfig_arch) |
| |
| prepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) |
| |
| LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static |
| LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib |
| |
| CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT |
| CONFIG_KERNEL_STACK_ORDER ?= 2 |
| STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] ) |
| |
| ifndef START |
| START = $$(($(TOP_ADDR) - $(SIZE))) |
| endif |
| |
| CPPFLAGS_vmlinux.lds = $(shell echo -U$(SUBARCH) \ |
| -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \ |
| -DELF_FORMAT=\"$(ELF_FORMAT)\" $(CPP_MODE-y) \ |
| -DKERNEL_STACK_SIZE=$(STACK_SIZE)) |
| |
| #The wrappers will select whether using "malloc" or the kernel allocator. |
| LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc |
| |
| CFLAGS_vmlinux = $(LINK-y) $(LINK_WRAPS) |
| define cmd_vmlinux__ |
| $(CC) $(CFLAGS_vmlinux) -o $@ \ |
| -Wl,-T,$(vmlinux-lds) $(vmlinux-init) \ |
| -Wl,--start-group $(vmlinux-main) -Wl,--end-group \ |
| -lutil \ |
| $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) \ |
| FORCE ,$^) ; rm -f linux |
| endef |
| |
| #When cleaning we don't include .config, so we don't include |
| #TT or skas makefiles and don't clean skas_ptregs.h. |
| CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/include/uml-config.h \ |
| $(GEN_HEADERS) $(ARCH_DIR)/include/skas_ptregs.h |
| |
| MRPROPER_FILES += $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) \ |
| $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) $(ARCH_DIR)/os \ |
| $(ARCH_DIR)/Kconfig_arch |
| |
| archclean: |
| $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/util |
| @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \ |
| -o -name '*.gcov' \) -type f -print | xargs rm -f |
| |
| $(SYMLINK_HEADERS): |
| @echo ' SYMLINK $@' |
| $(Q)cd $(TOPDIR)/$(dir $@) ; \ |
| ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@) |
| |
| include/asm-um/arch: |
| @echo ' SYMLINK $@' |
| $(Q)cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(SUBARCH) arch |
| |
| $(ARCH_DIR)/include/sysdep: |
| @echo ' SYMLINK $@' |
| $(Q)cd $(ARCH_DIR)/include && ln -sf sysdep-$(SUBARCH) sysdep |
| |
| $(ARCH_DIR)/os: |
| @echo ' SYMLINK $@' |
| $(Q)cd $(ARCH_DIR) && ln -sf os-$(OS) os |
| |
| # Generated files |
| define filechk_umlconfig |
| sed 's/ CONFIG/ UML_CONFIG/' |
| endef |
| |
| $(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h |
| $(call filechk,umlconfig) |
| |
| $(ARCH_DIR)/user-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.c |
| $(CC) $(USER_CFLAGS) -S -o $@ $< |
| |
| $(ARCH_DIR)/user-offsets.h: $(ARCH_DIR)/user-offsets.s |
| $(call filechk,gen-asm-offsets) |
| |
| CLEAN_FILES += $(ARCH_DIR)/user-offsets.s $(ARCH_DIR)/user-offsets.h |
| |
| $(ARCH_DIR)/kernel-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/kernel-offsets.c \ |
| $(ARCH_SYMLINKS) \ |
| $(SYS_DIR)/sc.h \ |
| include/asm include/linux/version.h \ |
| include/config/MARKER \ |
| $(ARCH_DIR)/include/user_constants.h |
| $(CC) $(CFLAGS) $(NOSTDINC_FLAGS) $(CPPFLAGS) -S -o $@ $< |
| |
| $(ARCH_DIR)/kernel-offsets.h: $(ARCH_DIR)/kernel-offsets.s |
| $(call filechk,gen-asm-offsets) |
| |
| CLEAN_FILES += $(ARCH_DIR)/kernel-offsets.s $(ARCH_DIR)/kernel-offsets.h |
| |
| $(ARCH_DIR)/include/task.h: $(ARCH_DIR)/util/mk_task |
| $(call filechk,gen_header) |
| |
| $(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/os-$(OS)/util/mk_user_constants |
| $(call filechk,gen_header) |
| |
| $(ARCH_DIR)/include/kern_constants.h: $(ARCH_DIR)/util/mk_constants |
| $(call filechk,gen_header) |
| |
| $(ARCH_DIR)/include/skas_ptregs.h: $(ARCH_DIR)/kernel/skas/util/mk_ptregs |
| $(call filechk,gen_header) |
| |
| $(ARCH_DIR)/os-$(OS)/util/mk_user_constants: $(ARCH_DIR)/os-$(OS)/util FORCE ; |
| |
| $(ARCH_DIR)/util/mk_task $(ARCH_DIR)/util/mk_constants: $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/util \ |
| FORCE ; |
| |
| $(ARCH_DIR)/kernel/skas/util/mk_ptregs: $(ARCH_DIR)/kernel/skas/util FORCE ; |
| |
| $(ARCH_DIR)/util: scripts_basic $(SYS_DIR)/sc.h FORCE |
| $(Q)$(MAKE) $(build)=$@ |
| |
| $(ARCH_DIR)/kernel/skas/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE |
| $(Q)$(MAKE) $(build)=$@ |
| |
| $(ARCH_DIR)/os-$(OS)/util: scripts_basic FORCE |
| $(Q)$(MAKE) $(build)=$@ |
| |
| export SUBARCH USER_CFLAGS OS |