2020 release

scripts/isa/mips32.mk

@@ -0,0 +1,5 @@
+CROSS_COMPILE := mips-linux-gnu-
+COMMON_FLAGS  := -march=mips32 -fno-pic -fno-delayed-branch -mno-abicalls -mno-check-zero-division -EL
+CFLAGS        += $(COMMON_FLAGS) -static -mno-llsc -mno-imadd -mno-mad
+ASFLAGS       += $(COMMON_FLAGS) -O0
+LDFLAGS       += -EL

scripts/isa/riscv32.mk

@@ -0,0 +1,5 @@
+CROSS_COMPILE := riscv64-linux-gnu-
+COMMON_FLAGS  := -fno-pic -march=rv32im -mabi=ilp32
+CFLAGS        += $(COMMON_FLAGS) -static
+ASFLAGS       += $(COMMON_FLAGS) -O0
+LDFLAGS       += -melf32lriscv

scripts/isa/x86.mk

@@ -0,0 +1,3 @@
+CFLAGS  += -m32 -fno-pic -fno-omit-frame-pointer -march=i386
+ASFLAGS += -m32 -fno-pic
+LDFLAGS += -melf_i386

scripts/isa/x86_64.mk

@@ -0,0 +1,3 @@
+CFLAGS  += -m64 -fPIC -mno-sse
+ASFLAGS += -m64 -fPIC
+LDFLAGS += -melf_x86_64

scripts/mips32-nemu.mk

@@ -0,0 +1,2 @@
+include $(AM_HOME)/scripts/isa/mips32.mk
+include $(AM_HOME)/scripts/platform/nemu.mk

scripts/native.mk

@@ -0,0 +1,24 @@
+AM_SRCS := native/trm.c \
+           native/ioe.c \
+           native/cte.c \
+           native/trap.S \
+           native/vme.c \
+           native/mpe.c \
+           native/platform.c \
+           native/native-input.c \
+           native/native-timer.c \
+           native/native-gpu.c \
+           native/native-audio.c \
+
+CFLAGS  += -fpie
+ASFLAGS += -fpie -pie
+
+image:
+	@echo + LD "->" $(IMAGE_REL)
+	@g++ -pie -o $(IMAGE) -Wl,--whole-archive $(LINKAGE) -Wl,-no-whole-archive -lSDL2
+
+run: image
+	$(IMAGE)
+
+gdb: image
+	gdb -ex "handle SIGUSR1 SIGSEGV noprint nostop" $(IMAGE)

scripts/platform/nemu.mk

@@ -0,0 +1,31 @@
+AM_SRCS := nemu/trm.c \
+           nemu/ioe/ioe.c \
+           nemu/ioe/timer.c \
+           nemu/ioe/input.c \
+           nemu/ioe/gpu.c \
+           nemu/ioe/audio.c \
+           nemu/isa/$(ISA)/cte.c \
+           nemu/isa/$(ISA)/trap.S \
+           nemu/isa/$(ISA)/vme.c \
+           nemu/mpe.c \
+           nemu/isa/$(ISA)/boot/start.S
+
+LDFLAGS   += -L $(AM_HOME)/am/src/nemu/scripts
+LDFLAGS   += -T $(AM_HOME)/am/src/nemu/isa/$(ISA)/boot/loader.ld
+LDFLAGS   += --gc-sections -e _start
+NEMUFLAGS += -b -l $(shell dirname $(IMAGE).elf)/nemu-log.txt $(IMAGE).bin
+
+CFLAGS += -DMAINARGS=\"$(mainargs)\"
+CFLAGS += -I$(AM_HOME)/am/src/nemu/include
+.PHONY: $(AM_HOME)/am/src/nemu/trm.c
+
+image: $(IMAGE).elf
+	@$(OBJDUMP) -d $(IMAGE).elf > $(IMAGE).txt
+	@echo + OBJCOPY "->" $(IMAGE_REL).bin
+	@$(OBJCOPY) -S --set-section-flags .bss=alloc,contents -O binary $(IMAGE).elf $(IMAGE).bin
+
+run: image
+	$(MAKE) -C $(NEMU_HOME) ISA=$(ISA) run ARGS="$(NEMUFLAGS)"
+
+gdb: image
+	$(MAKE) -C $(NEMU_HOME) ISA=$(ISA) gdb ARGS="$(NEMUFLAGS)"

scripts/platform/qemu.mk

@@ -0,0 +1,17 @@
+.PHONY: build-arg
+
+LDFLAGS    += -N -Ttext-segment=0x00100000
+QEMU_FLAGS += -serial mon:stdio \
+              -machine accel=tcg \
+              -smp "$(smp)" \
+              -drive format=raw,file=$(IMAGE)
+
+build-arg: image
+	@( echo -n $(mainargs); ) | dd if=/dev/stdin of=$(IMAGE) bs=512 count=2 seek=1 conv=notrunc status=none
+
+BOOT_HOME := $(AM_HOME)/am/src/x86/qemu/boot
+
+image: $(IMAGE).elf
+	@$(MAKE) -s -C $(BOOT_HOME)
+	@echo + CREATE "->" $(IMAGE_REL)
+	@( cat $(BOOT_HOME)/bootblock.o; head -c 1024 /dev/zero; cat $(IMAGE).elf ) > $(IMAGE)

scripts/riscv32-nemu.mk

@@ -0,0 +1,2 @@
+include $(AM_HOME)/scripts/isa/riscv32.mk
+include $(AM_HOME)/scripts/platform/nemu.mk

scripts/x86-nemu.mk

@@ -0,0 +1,3 @@
+include $(AM_HOME)/scripts/isa/x86.mk
+CFLAGS += -mstringop-strategy=loop
+include $(AM_HOME)/scripts/platform/nemu.mk

scripts/x86-qemu.mk

@@ -0,0 +1,13 @@
+include $(AM_HOME)/scripts/isa/x86.mk
+include $(AM_HOME)/scripts/platform/qemu.mk
+
+AM_SRCS := x86/qemu/start32.S \
+           x86/qemu/trap32.S \
+           x86/qemu/trm.c \
+           x86/qemu/cte.c \
+           x86/qemu/ioe.c \
+           x86/qemu/vme.c \
+           x86/qemu/mpe.c
+
+run: build-arg
+	@qemu-system-i386 $(QEMU_FLAGS)

scripts/x86_64-qemu.mk

@@ -0,0 +1,13 @@
+include $(AM_HOME)/scripts/isa/x86_64.mk
+include $(AM_HOME)/scripts/platform/qemu.mk
+
+AM_SRCS := x86/qemu/start64.S \
+           x86/qemu/trap64.S \
+           x86/qemu/trm.c \
+           x86/qemu/cte.c \
+           x86/qemu/ioe.c \
+           x86/qemu/vme.c \
+           x86/qemu/mpe.c
+
+run: build-arg
+	@qemu-system-x86_64 $(QEMU_FLAGS)