blob: 918121c30cb43e8ac7b9d299d7017df7eb274769 [file] [log] [blame]
ARCH_DIR = arch/um
OS := $(shell uname -s)
include $(ARCH_DIR)/Makefile-$(SUBARCH)
include $(ARCH_DIR)/Makefile-os-$(OS)
EXTRAVERSION := $(EXTRAVERSION)-42um
include/linux/version.h: arch/$(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)
MAKEBOOT = $(MAKE) -C $(ARCH_DIR)/boot
ifeq ($(CONFIG_DEBUGSYM),y)
DEBUG = -g
CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS))
endif
ifeq ($(CONFIG_GCOV),y)
CFLAGS += -fprofile-arcs -ftest-coverage
endif
ifeq ($(CONFIG_GPROF), y)
PROFILE += -pg -DPROFILING
LINK_PROFILE = $(PROFILE) -Wl,--wrap,__monstartup
endif
ARCH_SUBDIRS = $(ARCH_DIR)/fs $(ARCH_DIR)/drivers $(ARCH_DIR)/kernel \
$(ARCH_DIR)/sys-$(SUBARCH) $(ARCH_DIR)/os-$(OS)
SUBDIRS += $(ARCH_SUBDIRS)
LIBS += $(shell [ -e $(ARCH_DIR)/fs/fs.o ] && echo $(ARCH_DIR)/fs/fs.o) \
$(ARCH_DIR)/kernel/um.o $(ARCH_DIR)/drivers/drivers.o \
$(ARCH_DIR)/sys-$(SUBARCH)/sys.o $(ARCH_DIR)/os/os.o
ifeq ($(CONFIG_PT_PROXY), y)
SUBDIRS += $(ARCH_DIR)/ptproxy
LIBS += $(ARCH_DIR)/ptproxy/ptproxy.a
endif
ARCH_INCLUDE = $(TOPDIR)/$(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 += $(DEBUG) $(PROFILE) $(ARCH_CFLAGS) -D__arch_um__ \
-DSUBARCH=\"$(SUBARCH)\" -D_LARGEFILE64_SOURCE -I$(ARCH_INCLUDE) \
-Derrno=kernel_errno
LINKFLAGS += -r
LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000)
$(ARCH_DIR)/link.ld: $(ARCH_DIR)/link.ld.in
m4 -DSTART=$$(($(TOP_ADDR) - $(SIZE))) -DSUBARCH=$(SUBARCH) \
-DELF_SUBARCH=$(ELF_SUBARCH) $< > $@
SYMLINK_HEADERS = include/asm-um/archparam.h include/asm-um/system.h \
include/asm-um/sigcontext.h include/asm-um/processor.h \
include/asm-um/ptrace.h include/asm-um/arch-signal.h
ARCH_SYMLINKS = include/asm-um/arch arch/um/include/sysdep arch/um/os \
$(SYMLINK_HEADERS)
GEN_HEADERS = $(ARCH_DIR)/include/task.h
linux: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) $(ARCH_DIR)/main.o \
vmlinux $(ARCH_DIR)/link.ld
mv vmlinux vmlinux.o
$(CC) -Wl,-T,$(ARCH_DIR)/link.ld $(LINK_PROFILE) $(LINK_WRAPS) \
-o linux -static $(ARCH_DIR)/main.o vmlinux.o -L/usr/lib -lutil
USER_CFLAGS := $(patsubst -I%,,$(CFLAGS))
USER_CFLAGS := $(patsubst -Derrno=kernel_errno,,$(USER_CFLAGS))
USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) -I$(ARCH_INCLUDE)
# To get a definition of F_SETSIG
USER_CFLAGS += -D_GNU_SOURCE
$(ARCH_DIR)/main.o: $(ARCH_DIR)/main.c
$(CC) $(USER_CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<
archmrproper:
for d in $(ARCH_SUBDIRS) $(ARCH_DIR)/util; \
do \
$(MAKE) -C $$d archmrproper; \
done
rm -f $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) include/asm \
$(ARCH_DIR)/link.ld \
$(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS))
archclean: sysclean
for d in $(ARCH_SUBDIRS) $(ARCH_DIR)/util; \
do \
$(MAKE) -C $$d clean; \
done
find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \
-o -name '*.gcov' \) -type f -print | xargs rm -f
rm -f linux x.i gmon.out $(ARCH_DIR)/link.ld $(GEN_HEADERS)
@$(MAKEBOOT) clean
archdep:
for d in $(ARCH_SUBDIRS); do $(MAKE) -C $$d fastdep; done
@$(MAKEBOOT) dep
$(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)/util/mk_task : $(ARCH_DIR)/util/mk_task_user.c \
$(ARCH_DIR)/util/mk_task_kern.c
$(MAKE) $(MFLAGS) -C $(ARCH_DIR)/util all
export SUBARCH USER_CFLAGS OS