#
# The Makefile must define the following variables, which are used by common.mk:
#  O: output directory
#  STACK_SIZE: number of bytes to reserve for the stack
#  HEAP_SIZE: number of bytes to reserve for the heap
#  CORTEX_M: the Cortex-M model to target
#  STARTUP_DEFS: define's that configure the start-up code
#  CFLAGS: flags used for compilation AND linking
#  LDFLAGS: flags used for linking
#  ROM_MAP_FILE:ROM map file
#  OBJ: list of object files to compile and link
#  TARGET_ELF: name of the target (used in the generated images)
#

# output directory
O ?= out

# stack size
STACK_SIZE = 0x0600
# heap size
HEAP_SIZE = 0x0100

# Startup code
CORTEX_M := 0
STARTUP = startup_ARMCM$(CORTEX_M).S

# startup configuration
STARTUP_DEFS += -D__STACK_SIZE=$(STACK_SIZE) -D__HEAP_SIZE=$(HEAP_SIZE)
#STARTUP_DEFS += -D__START=main
#STARTUP_DEFS += -D__STARTUP_COPY_MULTIPLE
STARTUP_DEFS += -D__STARTUP_CLEAR_BSS_MULTIPLE

# -Os -flto -ffunction-sections -fdata-sections to compile for code size
#CFLAGS += -flto
CFLAGS += -ffunction-sections -fdata-sections
# Link for code size
GC := -Wl,--gc-sections

# optimisation flags
CFLAGS += -Os -fplugin=tree_switch_shortcut_elf


# include search paths
core_inc_search_paths := \
@@core_inc_search_paths@@

app_inc_search_paths := \
@@app_inc_search_paths@@

inc_search_paths := $(core_inc_search_paths) $(app_inc_search_paths)
CFLAGS += $(foreach d,$(inc_search_paths),-I $(d))


# global configuration
CFLAGS += -include da14580_config.h

ROM_MAP_FILE := ../../../misc/rom_symdef.txt

LDFLAGS += $(USE_NANO) $(USE_NOHOST) $(LDSCRIPTS) $(GC) $(MAP)

# don't complain about unknown attributes (i.e. zero_init)
CFLAGS += -Wno-attributes


# CHECK: this flag prevents the warning
# "uses 2-byte wchar_t yet the output is to use 4-byte wchar_t;
# use of wchar_t values across objects may fail"
# revisit if things don't work as expected with wchar_t strings.
LDFLAGS += -Wl,--no-wchar-size-warning


# source files
core_src_cfiles := \
@@core_src_cfiles@@

app_src_files := \
@@app_src_files@@

src_cfiles := $(core_src_cfiles) $(app_src_files)

src_Sfiles  := \

obj_cfiles := $(src_cfiles:.c=.o)
obj_Sfiles := $(src_Sfiles:.S=.o)

# patch objects
patch_objs := \
@@patch_objs@@


startup_obj := $(STARTUP:.S=.o)


OBJ := $(obj_cfiles) $(obj_Sfiles) $(startup_obj)


# target
TARGET_ELF := full_emb_sysram


include common.mk