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import os
import sys
import rtconfig
from esptool.bin_image import ELFFile, ImageSegment, LoadFirmwareImage
from esptool.targets import CHIP_DEFS, CHIP_LIST, ROM_LIST
def elf2image(target, source, env):
e = ELFFile("rtthread.elf")
print("Creating esp32c3 image...")
image = CHIP_DEFS["esp32c3"].BOOTLOADER_IMAGE()
image.min_rev = 3
image.entrypoint = e.entrypoint
image.flash_mode = 2 # flash_mode: dio
# ELFSection is a subclass of ImageSegment, so can use interchangeably
image.segments = e.sections
image.flash_size_freq = image.ROM_LOADER.parse_flash_size_arg("4MB")
image.flash_size_freq += image.ROM_LOADER.parse_flash_freq_arg("80m")
image.elf_sha256 = e.sha256()
image.elf_sha256_offset = 0xb0
before = len(image.segments)
image.merge_adjacent_segments()
if len(image.segments) != before:
delta = before - len(image.segments)
print("Merged %d ELF section%s" % (delta, "s" if delta > 1 else ""))
image.verify()
image.save("rtthread.bin")
print("Successfully created esp32c3 image.")
if os.getenv('RTT_ROOT'):
RTT_ROOT = os.getenv('RTT_ROOT')
else:
RTT_ROOT = os.path.join(os.getcwd(), '..', '..')
sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
from building import *
TARGET = 'rtthread.' + rtconfig.TARGET_EXT
DefaultEnvironment(tools=[])
env = Environment(tools = ['mingw'],
AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
CC = rtconfig.CC, CFLAGS = rtconfig.CFLAGS,
CXX = rtconfig.CXX, CXXFLAGS = rtconfig.CXXFLAGS,
AR = rtconfig.AR, ARFLAGS = '-rc',
LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
env['ASCOM'] = env['ASPPCOM']
Export('RTT_ROOT')
Export('rtconfig')
# prepare building environment
objs = PrepareBuilding(env, RTT_ROOT, remove_components = ['libc'])
# make a building
DoBuilding(TARGET, objs)
# 添加构建后的钩子函数
env.AddPostAction(TARGET, elf2image)
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