1 # Makefile.riscv -- with config changes.
2 # Copyright 1990 W. Jolitz
3 # from: @(#)Makefile.i386 7.1 5/10/91
4 # from FreeBSD: src/sys/conf/Makefile.i386,v 1.255 2002/02/20 23:35:49
9 # RISCVTODO: copy pasted from aarch64, needs to be
10 # constructed from a machine description:
12 # Most changes should be made in the machine description
13 # /sys/riscv/conf/``machineid''
14 # after which you should do
16 # Generic makefile changes should be made in
17 # /sys/conf/Makefile.riscv
18 # after which config should be rerun for all machines.
21 # Which version of config(8) is required.
27 .include "$S/conf/kern.pre.mk"
29 INCLUDES+= -I$S/contrib/libfdt
31 # Set the ELF LMA to the address that OpenSBI's fw_jump jumps to. This allows
32 # us to load the kernel with the -kernel flag in QEMU without having to embed
33 # it inside BBL or OpenSBI's fw_payload first.
34 # Note: For rv32 the start address is different (0x80400000).
35 # We set this value using --defsym rather than hardcoding it in ldscript.riscv
36 # so that different kernel configs can override the load address.
37 KERNEL_LMA?= 0x80200000
39 SYSTEM_LD= @${LD} -N -m ${LD_EMULATION} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} \
40 --no-warn-mismatch --warn-common --export-dynamic \
41 --defsym='kernel_lma=${KERNEL_LMA}' \
42 --dynamic-linker /red/herring \
43 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
45 .if !empty(DDB_ENABLED)
46 CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
49 # hack because genassym.c includes sys/bus.h which includes these.
50 genassym.o: bus_if.h device_if.h
66 .include "$S/conf/kern.post.mk"