240 lines
7.0 KiB
Makefile
240 lines
7.0 KiB
Makefile
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K=kernel
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U=user
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D=SDK
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# The mandatory CFLAGS are the options needed for the compiler to work
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# Whereas CFLAGS is now altered later with -Werror added
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CFLAGS_MANDATORY = -Wall -O -fno-omit-frame-pointer -ggdb -gdwarf-2
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CFLAGS_MANDATORY += -MD
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CFLAGS_MANDATORY += -mcmodel=medany
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# CFLAGS += -ffreestanding -fno-common -nostdlib -mno-relax
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CFLAGS_MANDATORY += -fno-common -nostdlib
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CFLAGS_MANDATORY += -fno-builtin-strncpy -fno-builtin-strncmp -fno-builtin-strlen -fno-builtin-memset
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CFLAGS_MANDATORY += -fno-builtin-memmove -fno-builtin-memcmp -fno-builtin-log -fno-builtin-bzero
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CFLAGS_MANDATORY += -fno-builtin-strchr -fno-builtin-exit -fno-builtin-malloc -fno-builtin-putc
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CFLAGS_MANDATORY += -fno-builtin-free
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CFLAGS_MANDATORY += -fno-builtin-memcpy -Wno-main
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CFLAGS_MANDATORY += -fno-builtin-printf -fno-builtin-fprintf -fno-builtin-vprintf
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CFLAGS_MANDATORY += -I.
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CFLAGS_MANDATORY += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
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# Disable PIE when possible (for Ubuntu 16.10 toolchain)
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ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]no-pie'),)
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CFLAGS_MANDATORY += -fno-pie -no-pie
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endif
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ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]nopie'),)
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CFLAGS_MANDATORY += -fno-pie -nopie
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endif
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include libc/include.mk
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OBJS = \
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$K/entry.o \
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$K/start.o \
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$K/riscv.o \
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$K/console.o \
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$K/kprintf.o \
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$K/uart.o \
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$K/physpg.o \
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$K/spinlock.o \
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$K/string.o \
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$K/main.o \
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$K/vm.o \
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$K/bitarray.o \
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$K/proc.o \
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$K/trampoline.o \
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$K/trap.o \
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$K/syscall.o \
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$K/sysproc.o \
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$K/drives.o \
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$K/diskio.o \
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$K/vmrd.o \
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$K/fsinstance.o \
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$K/sleeplock.o \
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$K/file.o \
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$K/pipe.o \
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$K/exec.o \
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$K/sysfile.o \
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$K/kernelvec.o \
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$K/plic.o \
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$K/virtio_disk.o \
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$K/sched.o \
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$K/sysnew.o \
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$K/fpu.o \
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$K/asmnew.o \
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$K/sync.o \
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$K/schedasm.o
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AUTOGENOBJS = \
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autogen/res_data.o
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# riscv64-unknown-elf- or riscv64-linux-gnu-
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# perhaps in /opt/riscv/bin
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#TOOLPREFIX =
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# Try to infer the correct TOOLPREFIX if not set
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ifndef TOOLPREFIX
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TOOLPREFIX := $(shell if riscv64-unknown-elf-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
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then echo 'riscv64-unknown-elf-'; \
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elif riscv64-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
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then echo 'riscv64-linux-gnu-'; \
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elif riscv64-unknown-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
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then echo 'riscv64-unknown-linux-gnu-'; \
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else echo "***" 1>&2; \
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echo "*** Error: Couldn't find a riscv64 version of GCC/binutils." 1>&2; \
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echo "*** To turn off this error, run 'gmake TOOLPREFIX= ...'." 1>&2; \
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echo "***" 1>&2; exit 1; fi)
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endif
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QEMU = qemu-system-riscv64
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CC = $(TOOLPREFIX)gcc
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AS = $(TOOLPREFIX)gas
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LD = $(TOOLPREFIX)ld
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OBJCOPY = $(TOOLPREFIX)objcopy
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OBJDUMP = $(TOOLPREFIX)objdump
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CFLAGS = -Werror $(CFLAGS_MANDATORY)
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LDFLAGS = -z max-page-size=4096
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$K/kernel: $(OBJS) $(AUTOGENOBJS) $K/kernel.ld $U/initcode kernel-audit.txt
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$(LD) $(LDFLAGS) -T $K/kernel.ld -o $K/kernel $(OBJS) $(AUTOGENOBJS)
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$(OBJDUMP) -S $K/kernel > $K/kernel.asm
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$(OBJDUMP) -t $K/kernel | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $K/kernel.sym
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$U/initcode: $U/initcode.S
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$(CC) $(CFLAGS) -march=rv64g -nostdinc -I. -Ikernel -c $U/initcode.S -o $U/initcode.o
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$(LD) $(LDFLAGS) -N -e start -Ttext 0 -o $U/initcode.out $U/initcode.o
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$(OBJCOPY) -S -O binary $U/initcode.out $U/initcode
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$(OBJDUMP) -S $U/initcode.o > $U/initcode.asm
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tags: $(OBJS) _init
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etags *.S *.c
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ULIB = $U/ulib.o $U/usys.o $U/printf.o $U/umalloc.o $K/riscv.o
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_%: %.o $(ULIB)
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$(LD) $(LDFLAGS) -T $U/user.ld -o $@ $^
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$(OBJDUMP) -S $@ > $*.asm
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$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $*.sym
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$U/usys.S : $U/usys.pl
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perl $U/usys.pl > $U/usys.S
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$U/usys.o : $U/usys.S
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$(CC) $(CFLAGS) -c -o $U/usys.o $U/usys.S
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$U/_forktest: $U/forktest.o $(ULIB)
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# forktest has less library code linked in - needs to be small
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# in order to be able to max out the proc table.
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$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $U/_forktest $U/forktest.o $U/ulib.o $U/usys.o
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$(OBJDUMP) -S $U/_forktest > $U/forktest.asm
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mkfs/mkfs: mkfs/mkfs.c mkfs/mkfsv2.c $K/fs.h $K/param.h
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gcc -Werror -Wall -I. -o mkfs/mkfs mkfs/mkfs.c
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mkfs/mkfsv2: mkfs/main.c mkfs/mkfsv2.c $K/fs.h $K/param.h
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gcc -Werror -Wall -I. -o mkfs/mkfsv2 mkfs/main.c
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$D/assemble: $D/assemble.c $D/asmln.c $D/asmln.h $D/asmdata.c $D/asmdata.h $D/asmpp.c $D/asmpp.h
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gcc -I. -o $D/assemble $D/assemble.c
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$D/compilec: $D/compilec.c $D/brutal.c $D/ccb.h $D/ccbgeneric.h
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gcc -I. -o $D/compilec $D/compilec.c
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$D/audit: $D/audit.c
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gcc -I. -o $D/audit $D/audit.c
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$D/res2c: $D/res2c.c
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gcc -I. -o $D/res2c $D/res2c.c
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kernel-audit.txt: $D/audit $(OBJS) libc/elf.h libc/string.c mkfs/fsformat.h
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$D/audit kernel/*.c kernel/*.h kernel/*.S libc/elf.h libc/string.c mkfs/fsformat.h > kernel-audit.txt
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# Prevent deletion of intermediate files, e.g. cat.o, after first build, so
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# that disk image changes after first build are persistent until clean. More
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# details:
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# http://www.gnu.org/software/make/manual/html_node/Chained-Rules.html
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.PRECIOUS: %.o
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UPROGS=\
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$U/_cat\
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$U/_echo\
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$U/_forktest\
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$U/_thrdtest\
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$U/_grep\
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$U/_init\
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$U/_kill\
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$U/_ln\
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$U/_ls\
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$U/_mkdir\
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$U/_rm\
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$U/_sh\
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$U/_stressfs\
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$U/_grind\
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$U/_wc\
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$U/_zombie\
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$U/_libc_drives\
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$U/_libc_st\
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$D/_numbered\
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$D/_libc_assemble\
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$D/_libc_res2c\
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$D/_libc_hello\
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$D/_libc_audit\
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$U/_libc_scm\
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AI/_libc_example1
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# $U/_usertests\
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# $U/_libc_scm\
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# $D/_libc_compilec
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fs.img: mkfs/mkfsv2 README $U/classic.st $(UPROGS)
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mkfs/mkfsv2 -v1 --skip_underscores --output fs.img --blocksize 4096 --blocks 2000 README $U/classic.st $(UPROGS)
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ramdisk0.img: mkfs/mkfsv2 README
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mkfs/mkfsv2 -v0 --blocksize 4096 --output ramdisk0.img --blocks 500 README
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ramdisk1.img: mkfs/mkfsv2 README
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mkfs/mkfsv2 -v1 --blocksize 4096 --output ramdisk1.img --blocks 800 README SDK/rv64.inc SDK/*.c SDK/*.h
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autogen/res_data.c: $D/res2c ramdisk0.img ramdisk1.img
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$D/res2c --output autogen/res_data.c --type RAMDISK --filename RD0 ramdisk0.img --type RAMDISK --filename RD1 ramdisk1.img
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-include kernel/*.d user/*.d
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clean:
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rm -f *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \
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*/*.o */*.d */*.asm */*.sym \
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$U/initcode $U/initcode.out $K/kernel fs.img \
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mkfs/mkfs mkfs/mkfsv2 $D/assemble $D/compilec $D/audit $D/res2c .gdbinit \
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ramdisk0.img ramdisk1.img imgsums.txt \
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$U/usys.S \
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$(UPROGS)
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# try to generate a unique GDB port
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GDBPORT = $(shell expr `id -u` % 5000 + 25000)
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# QEMU's gdb stub command line changed in 0.11
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QEMUGDB = $(shell if $(QEMU) -help | grep -q '^-gdb'; \
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then echo "-gdb tcp::$(GDBPORT)"; \
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else echo "-s -p $(GDBPORT)"; fi)
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ifndef CPUS
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CPUS := 3
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endif
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QEMUOPTS = -machine virt -bios none -kernel $K/kernel -m 128M -smp $(CPUS) -nographic
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QEMUOPTS += -global virtio-mmio.force-legacy=false
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QEMUOPTS += -drive file=fs.img,if=none,format=raw,id=x0
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QEMUOPTS += -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0
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qemu: $K/kernel fs.img
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$(QEMU) $(QEMUOPTS)
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.gdbinit: .gdbinit.tmpl-riscv
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sed "s/:1234/:$(GDBPORT)/" < $^ > $@
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qemu-gdb: $K/kernel .gdbinit fs.img
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@echo "*** Now run 'gdb' in another window." 1>&2
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$(QEMU) $(QEMUOPTS) -S $(QEMUGDB)
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