| # |
| # Copyright (C) 2002 Jeff Dike (jdike@karaya.com) |
| # Licensed under the GPL |
| # |
| |
| OS := $(shell uname -s) |
| |
| ARCH_DIR = arch/um |
| |
| core-y := kernel sys-$(SUBARCH) os-$(OS) |
| drivers-y := fs drivers |
| subdir-y := $(core-y) $(drivers-y) |
| SUBDIRS += $(foreach dir,$(subdir-y),$(ARCH_DIR)/$(dir)) |
| |
| CORE_FILES += $(foreach dir,$(core-y),$(ARCH_DIR)/$(dir)/built-in.o) |
| DRIVERS += $(foreach dir,$(drivers-y),$(ARCH_DIR)/$(dir)/built-in.o) |
| |
| include $(ARCH_DIR)/Makefile-$(SUBARCH) |
| include $(ARCH_DIR)/Makefile-os-$(OS) |
| |
| MAKEFILE-$(CONFIG_MODE_TT) += Makefile-tt |
| MAKEFILE-$(CONFIG_MODE_SKAS) += Makefile-skas |
| |
| ifneq ($(MAKEFILE-y),) |
| include $(addprefix $(ARCH_DIR)/,$(MAKEFILE-y)) |
| endif |
| |
| EXTRAVERSION := $(EXTRAVERSION)-5um |
| |
| include/linux/version.h: arch/$(ARCH)/Makefile |
| |
| # Recalculate MODLIB to reflect the EXTRAVERSION changes (via KERNELRELEASE) |
| # The way the toplevel Makefile is written EXTRAVERSION is not supposed |
| # to be changed outside the toplevel Makefile, but recalculating MODLIB is |
| # a sufficient workaround until we no longer need architecture dependent |
| # EXTRAVERSION... |
| MODLIB := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
| |
| ifeq ($(CONFIG_DEBUGSYM),y) |
| CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS)) |
| endif |
| |
| CFLAGS-$(CONFIG_DEBUGSYM) += -g |
| |
| ARCH_INCLUDE = -I$(TOPDIR)/$(ARCH_DIR)/include |
| |
| # -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 += $(ARCH_CFLAGS) $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ |
| -D_LARGEFILE64_SOURCE $(ARCH_INCLUDE) -Derrno=kernel_errno \ |
| $(MODE_INCLUDE) |
| |
| LINKFLAGS += -r |
| |
| LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc |
| |
| SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000) |
| |
| # These aren't in Makefile-tt because they are needed in the !CONFIG_MODE_TT + |
| # CONFIG_MODE_SKAS + CONFIG_STATIC_LINK case. |
| |
| LINK_TT = -static |
| LD_SCRIPT_TT := link.ld |
| |
| ifeq ($(CONFIG_STATIC_LINK),y) |
| LINK-y += $(LINK_TT) |
| LD_SCRIPT-y := $(LD_SCRIPT_TT) |
| else |
| ifeq ($(CONFIG_MODE_TT),y) |
| LINK-y += $(LINK_TT) |
| LD_SCRIPT-y := $(LD_SCRIPT_TT) |
| else |
| ifeq ($(CONFIG_MODE_SKAS),y) |
| LINK-y += $(LINK_SKAS) |
| LD_SCRIPT-y := $(LD_SCRIPT_SKAS) |
| endif |
| endif |
| endif |
| |
| LD_SCRIPT-y := $(ARCH_DIR)/$(LD_SCRIPT-y) |
| M4_MODE_TT := $(shell [ "$(CONFIG_MODE_TT)" = "y" ] && echo -DMODE_TT) |
| |
| $(LD_SCRIPT-y): $(LD_SCRIPT-y).in |
| pages=$$(( 1 << $(CONFIG_KERNEL_STACK_ORDER) )) ; \ |
| m4 -DSTART=$$(($(TOP_ADDR) - $(SIZE))) -DELF_ARCH=$(ELF_ARCH) \ |
| -DELF_FORMAT=$(ELF_FORMAT) $(M4_MODE_TT) \ |
| -DKERNEL_STACK_SIZE=$$(( 4096 * $$pages )) $< > $@ |
| |
| SYMLINK_HEADERS = include/asm-um/archparam.h include/asm-um/system.h \ |
| include/asm-um/sigcontext.h include/asm-um/processor.h \ |
| include/asm-um/ptrace.h include/asm-um/arch-signal.h |
| |
| ARCH_SYMLINKS = include/asm-um/arch arch/um/include/sysdep arch/um/os \ |
| $(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h |
| |
| ifeq ($(CONFIG_MODE_SKAS), y) |
| $(SYS_HEADERS) : $(ARCH_DIR)/kernel/skas/include/skas_ptregs.h |
| endif |
| |
| GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h |
| |
| setup: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) |
| |
| linux: setup $(ARCH_DIR)/main.o vmlinux $(LD_SCRIPT-y) |
| mv vmlinux vmlinux.o |
| $(CC) -Wl,-T,$(LD_SCRIPT-y) $(LINK-y) $(LINK_WRAPS) \ |
| -o linux $(ARCH_DIR)/main.o vmlinux.o -L/usr/lib -lutil |
| |
| USER_CFLAGS := $(patsubst -I%,,$(CFLAGS)) |
| USER_CFLAGS := $(patsubst -Derrno=kernel_errno,,$(USER_CFLAGS)) |
| USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \ |
| $(MODE_INCLUDE) |
| |
| # To get a definition of F_SETSIG |
| USER_CFLAGS += -D_GNU_SOURCE |
| |
| CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/link.ld $(ARCH_DIR)/dyn_link.ld \ |
| $(GEN_HEADERS) $(ARCH_DIR)/include/uml-config.h |
| |
| $(ARCH_DIR)/main.o: $(ARCH_DIR)/main.c |
| $(CC) $(USER_CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $< |
| |
| archmrproper: |
| rm -f $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) include/asm \ |
| $(LD_SCRIPT) $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) |
| |
| archclean: sysclean |
| find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \ |
| -o -name '*.gcov' \) -type f -print | xargs rm -f |
| cd $(ARCH_DIR) ; \ |
| for dir in $(subdir-y) util ; do $(MAKE) -C $$dir clean; done |
| |
| archdep: |
| |
| $(SYMLINK_HEADERS): |
| cd $(TOPDIR)/$(dir $@) ; \ |
| ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@) |
| |
| include/asm-um/arch: |
| cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(SUBARCH) arch |
| |
| arch/um/include/sysdep: |
| cd $(TOPDIR)/arch/um/include && ln -sf sysdep-$(SUBARCH) sysdep |
| |
| arch/um/os: |
| cd $(ARCH_DIR) && ln -sf os-$(OS) os |
| |
| $(ARCH_DIR)/include/task.h : $(ARCH_DIR)/util/mk_task |
| $< > $@ |
| |
| $(ARCH_DIR)/include/kern_constants.h : $(ARCH_DIR)/util/mk_constants |
| $< > $@ |
| |
| $(ARCH_DIR)/include/uml-config.h : $(TOPDIR)/include/linux/autoconf.h |
| sed 's/ CONFIG/ UML_CONFIG/' $(TOPDIR)/include/linux/autoconf.h > $@ |
| |
| $(ARCH_DIR)/util/mk_task : $(ARCH_DIR)/util/mk_task_user.c \ |
| $(ARCH_DIR)/util/mk_task_kern.c $(SYS_HEADERS) |
| $(MAKE) $(MFLAGS) -C $(ARCH_DIR)/util mk_task |
| |
| $(ARCH_DIR)/util/mk_constants : $(ARCH_DIR)/util/mk_constants_user.c \ |
| $(ARCH_DIR)/util/mk_constants_kern.c |
| $(MAKE) $(MFLAGS) -C $(ARCH_DIR)/util mk_constants |
| |
| export SUBARCH USER_CFLAGS OS |