#
#  Config file for the PowerPC 60x simulator - psim
#
#  $Id$
#

include $(RTEMS_ROOT)/make/custom/default.cfg

RTEMS_CPU=powerpc
RTEMS_CPU_MODEL=ppc603e

# This is the actual bsp directory used during the build process.
RTEMS_BSP_FAMILY=psim

#  This section makes the target dependent options file.

#  CONSOLE_USE_POLLED     (psim_bsp)
#  CONSOLE_USE_INTERRUPTS (psim_bsp)
#     The psim console driver has the structure to operate in either
#     polled or interrupt mode.  However both modes only trap to the
#     monitor currently.
#
#  PSIM_FAST_IDLE (psim_bsp)
#     If defined, speed up the clock ticks while the idle task is running so
#     time spent in the idle task is minimized.  This significantly reduces
#     the wall time required to execute the RTEMS test suites.
#
#  PPC_VECTOR_FILE_BASE (PowerPC)
#     This defines the base address of the exception table.
#     NOTE: Vectors are actually at 0xFFF00000 but file starts at offset 0x0100
#
#  PPC_USE_SPRG (RTEMS PowerPC port)
#     If defined, then the PowerPC specific code in RTEMS will use some
#     of the special purpose registers to slightly optimize interrupt
#     response time.  The use of these registers can conflict with 
#     other tools like debuggers.

define make-target-options
	@echo "#define CONSOLE_USE_INTERRUPTS 0"                   >>$@
	@echo "#define CONSOLE_USE_POLLED !CONSOLE_USE_INTERRUPTS" >>$@
	@echo "#define PSIM_FAST_IDLE 1"                           >>$@
	@echo "#define PPC_VECTOR_FILE_BASE 0xFFF00100"            >>$@
	@echo "#define PPC_USE_SPRG 1"                             >>$@
endef

#  This contains the compiler options necessary to select the CPU model
#  and (hopefully) optimize for it. 
#
CPU_CFLAGS = -mcpu=603 
#-ffunction-sections

# optimize flag: typically -0, could use -O4 or -fast
# -O4 is ok for RTEMS
# NOTE: some level of -O may be actually required by inline assembler
CFLAGS_OPTIMIZE_V=-O4 -fno-keep-inline-functions

# The following is a linkcmds file which will work without using the
# -specs system in gcc 2.8.
#       $(LD) $(XLDFLAGS) -T $(LINKCMDS) \
#         -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)
#       $(LD) $(XLDFLAGS) -Ttext 0x20000 \
#         -o $@ -u atexit -u __vectors -u download_entry $(LINK_FILES)

#       $(CC) -mmvme -mrtems -nostartfiles -mcpu=603 \
#           -o $(basename $@).exe -L $(PROJECT_RELEASE)/lib \
#            $(START_FILE) $(LINK_OBJS) \
#            $(LD_LIBS) \
#           -Wl,-\( -Wl,-lc -Wl,-lrtemsall -Wl,-lgcc -Wl,-\)
ifeq ($(RTEMS_USE_GCC272),yes)
define make-exe
	$(CC) $(CFLAGS) -o $(basename $@).exe $(LINK_OBJS) $(LINK_LIBS)
	$(NM) -g -n $@ > $(basename $@).num
	$(SIZE) $@
endef
else
# -Wl,--gc-sections
define make-exe
	$(LINK.c) $(AM_CFLAGS) $(AM_LDFLAGS) -o $(basename $@).exe \
	    $(LINK_OBJS) $(LINK_LIBS)
	$(NM) -g -n $@ > $(basename $@).num
	$(SIZE) $@
endef
endif

# Miscellaneous additions go here