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meta: Cleanup Makefile, add some comments

This commit is contained in:
K. Lange 2021-10-31 22:25:33 +09:00
parent 710b336235
commit 58e7e07a2b
1 changed files with 23 additions and 6 deletions
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29
Makefile
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@ -1,9 +1,11 @@
# ToaruOS 2.0 root Makefile
TOOLCHAIN=util
BASE=base
export PATH := $(shell $(TOOLCHAIN)/activate.sh)
include build/x86_64.mk
# Cross compiler binaries
CC = ${TARGET}-gcc
NM = ${TARGET}-nm
CXX= ${TARGET}-g++
@ -11,6 +13,7 @@ AR = ${TARGET}-ar
AS = ${TARGET}-as
OC = ${TARGET}-objcopy
# CFLAGS for kernel objects and modules
KERNEL_CFLAGS = -ffreestanding -O2 -std=gnu11 -g -static
KERNEL_CFLAGS += -Wall -Wextra -Wno-unused-function -Wno-unused-parameter
KERNEL_CFLAGS += -pedantic -Wwrite-strings ${ARCH_KERNEL_CFLAGS}
@ -19,18 +22,29 @@ KERNEL_CFLAGS += -pedantic -Wwrite-strings ${ARCH_KERNEL_CFLAGS}
KERNEL_CFLAGS += -D_KERNEL_ -DKERNEL_ARCH=${ARCH}
KERNEL_CFLAGS += -DKERNEL_GIT_TAG=`util/make-version`
# Automatically find kernel sources from relevant paths
KERNEL_OBJS = $(patsubst %.c,%.o,$(wildcard kernel/*.c))
KERNEL_OBJS += $(patsubst %.c,%.o,$(wildcard kernel/*/*.c))
KERNEL_OBJS += $(patsubst %.c,%.o,$(wildcard kernel/arch/${ARCH}/*.c))
# Assembly sources only come from the arch-dependent directory
KERNEL_ASMOBJS = $(filter-out kernel/symbols.o,$(patsubst %.S,%.o,$(wildcard kernel/arch/${ARCH}/*.S)))
# These sources are used to determine if we should update symbols.o
KERNEL_SOURCES = $(wildcard kernel/*.c) $(wildcard kernel/*/*.c) $(wildcard kernel/${ARCH}/*/*.c)
KERNEL_SOURCES += $(wildcard kernel/arch/${ARCH}/*.S)
# Kernel modules are one file = one module; if you want to build more complicated
# modules, you could potentially use `ld -r` to turn multiple source objects into
# a single relocatable object file.
MODULES = $(patsubst modules/%.c,$(BASE)/mod/%.ko,$(wildcard modules/*.c))
# Configs you can override.
# SMP: Argument to -smp, use 1 to disable SMP.
# RAM: Argument to -m, QEMU takes suffixes like "M" or "G".
# EXTRA_ARGS: Added raw to the QEMU command line
# EMU_KVM: Unset this (EMU_KVM=) to use TCG, or replace it with something like EMU_KVM=-enable-haxm
# EMU_MACH: Argument to -M, 'pc' should be the older default in QEMU; we use q35 to test AHCI.
SMP ?= 4
RAM ?= 3G
EXTRA_ARGS ?=
@ -44,16 +58,19 @@ EMU_ARGS += -smp $(SMP)
EMU_ARGS += ${EMU_KVM}
EMU_ARGS += -no-reboot
EMU_ARGS += -serial mon:stdio
EMU_ARGS += -rtc base=utc
EMU_ARGS += -soundhw pcspk,ac97
# Configures two network devices on the same network
EMU_ARGS += -net user
EMU_ARGS += -netdev hubport,id=u1,hubid=0, -device e1000e,netdev=u1 -object filter-dump,id=f1,netdev=u1,file=qemu-e1000e.pcap
# UTC is the default setting.
#EMU_ARGS += -rtc base=utc
# Customize network options here. QEMU's default is an e1000(e) under PIIX (Q35), with user networking
# so we don't need to do anything normally.
#EMU_ARGS += -net user
#EMU_ARGS += -netdev hubport,id=u1,hubid=0, -device e1000e,netdev=u1 -object filter-dump,id=f1,netdev=u1,file=qemu-e1000e.pcap
#EMU_ARGS += -netdev hubport,id=u2,hubid=0, -device e1000e,netdev=u2
# Add an XHCI tablet
EMU_ARGS += -device qemu-xhci -device usb-tablet
# Add an XHCI tablet if you want to dev on USB
#EMU_ARGS += -device qemu-xhci -device usb-tablet
APPS=$(patsubst apps/%.c,%,$(wildcard apps/*.c))
APPS_X=$(foreach app,$(APPS),$(BASE)/bin/$(app))