# where is soclib?
SOCLIB_DIR=$(shell soclib-cc --getpath)

# name definitions
SOCLIB_DESC=desc.py
SOCLIB_TOP=top.cpp
SIMULATOR_BINARY=system.x
SIMULATOR_CMD=./$(SIMULATOR_BINARY) --nobanner

# extra arguments for compilation
#SOCLIB_CC_ARGS=-v
SOCLIB_CC_ARGS+=-b common:mips32

# extra arguments for execution
# gdb
# F: start the simulation in a frozen state so it can be attached with a gdb client
# X: disable automatic break whenever an exception is caught, the exception handler will be called transparently
# S: make the simulation stop and wait for a gdb attachment whenever an exception is caught
# C: dump a trace of every inter-functions branch
# T: exit the simulator on trap exception
# Z: same as C but display only function's entrypoint
# W: disable automatic break whenever a watchpoint is hit, just report it on stderr (watchpoints can be defined using SOCLIB_GDB_WATCH)
SIMULATOR_GDB=
ifeq ("$(origin GDB)", "command line")
ifeq ($(GDB), 1)
	SIMULATOR_GDB=SOCLIB_GDB=FCX
else
	SIMULATOR_GDB=SOCLIB_GDB=$(GDB)
endif
endif
# trace
SIMULATOR_TRACE=
ifeq ("$(origin TRACE)", "command line")
	SIMULATOR_TRACE=--trace $(TRACE)
endif
# vmlinux
SIMULATOR_VMLINUX=./vmlinux
ifeq ("$(origin VMLINUX)", "command line")
	SIMULATOR_VMLINUX=$(VMLINUX)
endif

# recipes
all: $(SIMULATOR_BINARY)

$(SIMULATOR_BINARY): $(SOCLIB_DESC) $(SOCLIB_TOP)
	soclib-cc $(SOCLIB_CC_ARGS) -P -p $(SOCLIB_DESC) -o $(SIMULATOR_BINARY)

run_tsar_boot: all tsar_boot.bin disk.img
	$(SIMULATOR_GDB) $(SIMULATOR_CMD) --rom tsar_boot.bin --dsk disk.img $(SIMULATOR_TRACE)

run_dummy_boot: all vmlinux disk.img
	$(SIMULATOR_GDB) $(SIMULATOR_CMD) --rom $(SIMULATOR_VMLINUX) --dsk disk.img --dummy-boot $(SIMULATOR_TRACE)

cscope.out:
	soclib-cc -p $(SOCLIB_DESC) --tags

clean:
	soclib-cc -P -p $(SOCLIB_DESC) -x -o $(SIMULATOR_BINARY)
	rm -f $(SIMULATOR_BINARY) *.o vci*

.PHONY: $(SIMULATOR_BINARY)