linux/arch/um/kernel/Makefile
Vincent Whitchurch b31297f04e um: Add devicetree support
Add a dtb=<filename> option to boot UML with a devicetree blob.  This
can be used for testing driver code using UML.

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
[rw: Add dependency on CONFIG_OF]
Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-22 20:35:01 +01:00

66 lines
2.1 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux,intel}.com)
#
# Don't instrument UML-specific code; without this, we may crash when
# accessing the instrumentation buffer for the first time from the
# kernel.
KCOV_INSTRUMENT := n
CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START) \
-DELF_ARCH=$(LDS_ELF_ARCH) \
-DELF_FORMAT=$(LDS_ELF_FORMAT) \
$(LDS_EXTRA)
extra-y := vmlinux.lds
obj-y = config.o exec.o exitcode.o irq.o ksyms.o mem.o \
physmem.o process.o ptrace.o reboot.o sigio.o \
signal.o sysrq.o time.o tlb.o trap.o \
um_arch.o umid.o maccess.o kmsg_dump.o capflags.o skas/
obj-y += load_file.o
obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o
obj-$(CONFIG_GPROF) += gprof_syms.o
obj-$(CONFIG_OF) += dtb.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_GENERIC_PCI_IOMAP) += ioport.o
USER_OBJS := config.o
include arch/um/scripts/Makefile.rules
targets := config.c config.tmp capflags.c
# Be careful with the below Sed code - sed is pitfall-rich!
# We use sed to lower build requirements, for "embedded" builders for instance.
$(obj)/config.tmp: $(objtree)/.config FORCE
$(call if_changed,quote1)
quiet_cmd_quote1 = QUOTE $@
cmd_quote1 = sed -e 's/"/\\"/g' -e 's/^/"/' -e 's/$$/\\n",/' \
$< > $@
$(obj)/config.c: $(src)/config.c.in $(obj)/config.tmp FORCE
$(call if_changed,quote2)
quiet_cmd_mkcapflags = MKCAP $@
cmd_mkcapflags = $(CONFIG_SHELL) $(srctree)/$(src)/../../x86/kernel/cpu/mkcapflags.sh $@ $^
cpufeature = $(src)/../../x86/include/asm/cpufeatures.h
vmxfeature = $(src)/../../x86/include/asm/vmxfeatures.h
$(obj)/capflags.c: $(cpufeature) $(vmxfeature) $(src)/../../x86/kernel/cpu/mkcapflags.sh FORCE
$(call if_changed,mkcapflags)
quiet_cmd_quote2 = QUOTE $@
cmd_quote2 = sed -e '/CONFIG/{' \
-e 's/"CONFIG"//' \
-e 'r $(obj)/config.tmp' \
-e 'a \' \
-e '""' \
-e '}' \
$< > $@