xref: /freebsd/sys/conf/Makefile.riscv (revision 3cbb4cc200f8a0ad7ed08233425ea54524a21f1c)
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
5# $FreeBSD$
6#
7# Makefile for FreeBSD
8#
9# RISCVTODO: copy pasted from aarch64, needs to be
10# constructed from a machine description:
11#	config machineid
12# Most changes should be made in the machine description
13#	/sys/riscv/conf/``machineid''
14# after which you should do
15#	 config machineid
16# Generic makefile changes should be made in
17#	/sys/conf/Makefile.riscv
18# after which config should be rerun for all machines.
19#
20
21# Which version of config(8) is required.
22%VERSREQ=	600012
23
24.if !defined(S)
25S=	../../..
26.endif
27.include "$S/conf/kern.pre.mk"
28
29INCLUDES+= -I$S/contrib/libfdt
30
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.
37KERNEL_LMA?=	0x80200000
38LDFLAGS+= --defsym='kernel_lma=${KERNEL_LMA}'
39
40.if !empty(DDB_ENABLED)
41CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
42.endif
43
44# hack because genassym.c includes sys/bus.h which includes these.
45genassym.o: bus_if.h device_if.h
46
47%BEFORE_DEPEND
48
49%OBJS
50
51%FILES.c
52
53%FILES.s
54
55%FILES.m
56
57%CLEAN
58
59%RULES
60
61.include "$S/conf/kern.post.mk"
62