# With the '-Os' option, char arrays have not to be 32-bit word aligned. This
# leads to an alignment exception when the address of a char array is assigned
# to an 'uint32_t' pointer and the pointer is used for the access.
CFLAGS_OPT ?= -O2

# ESP8266 specific flashing options
# DO NOT CHANGE, ESP8266/ESP8285 modules only work with dout and 26m
FLASH_CHIP  = esp8266
FLASH_OPTS  = --version 3
FLASH_MODE  = dout
FLASH_FREQ  = 26m
FLASH_SIZE ?= 1
BOOTLOADER_POS = 0x0000
FLASHFILE_POS = 0x10000

include $(RIOTCPU)/esp_common/Makefile.include

# regular Makefile

TARGET_ARCH_ESP8266 ?= xtensa-esp8266-elf
TARGET_ARCH ?= $(TARGET_ARCH_ESP8266)

PSEUDOMODULES += esp_sw_timer

INCLUDES += -I$(RIOTCPU)/$(CPU)
INCLUDES += -I$(RIOTCPU)/$(CPU)/include
INCLUDES += -I$(RIOTCPU)/$(CPU)/vendor
INCLUDES += -I$(RIOTCPU)/$(CPU)/vendor/esp-idf/
INCLUDES += -I$(RIOTCPU)/$(CPU)/vendor/esp-idf/bootloader_support/include
INCLUDES += -I$(RIOTCPU)/$(CPU)/vendor/esp-idf/esp8266/include
INCLUDES += -I$(RIOTCPU)/$(CPU)/vendor/esp-idf/esp8266/include/esp8266
INCLUDES += -I$(RIOTCPU)/$(CPU)/vendor/esp-idf/heap/include
INCLUDES += -I$(RIOTCPU)/$(CPU)/vendor/esp-idf/log/include

CFLAGS += -D__ESP_FILE__=__FILE__

ifneq (,$(filter esp_gdbstub,$(USEMODULE)))
  GDBSTUB_DIR ?= $(RIOTCPU)/$(CPU)/vendor/esp-gdbstub
  CFLAGS += -DGDBSTUB_BREAK_ON_INIT=1
  INCLUDES += -I$(GDBSTUB_DIR)
endif

ifneq (,$(filter esp_now,$(USEMODULE)))
  ARCHIVES += -lespnow
endif

ARCHIVES += -lgcc -lhal -lwpa -lcore -lnet80211 -lphy -lpp -lstdc++

LINKFLAGS += -L$(RIOTCPU)/$(CPU)/ld
LINKFLAGS += -Tesp8266.rom.ld
LINKFLAGS += -Tesp8266.riot-os.ld
LINKFLAGS += -Tesp8266.peripherals.ld

LINKFLAGS += -Wl,-wrap=pp_attach
LINKFLAGS += -Wl,-wrap=pm_attach