BA
Backup 1
Diff: mbed-os/tools/targets/REALTEK_RTL8195AM.py
- Revision:
- 0:02dd72d1d465
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/tools/targets/REALTEK_RTL8195AM.py Tue Apr 24 11:45:18 2018 +0000
@@ -0,0 +1,286 @@
+"""
+Realtek Semiconductor Corp.
+
+RTL8195A elf2bin script
+"""
+
+import sys, array, struct, os, re, subprocess
+import hashlib
+import shutil
+import time
+import binascii
+
+from tools.paths import TOOLS_BOOTLOADERS
+from tools.toolchains import TOOLCHAIN_PATHS
+
+# Constant Variables
+TAG = 0x81950001
+VER = 0x81950001
+CAMPAIGN = binascii.hexlify('FFFFFFFFFFFFFFFF')
+
+RAM2_HEADER = {
+ 'tag': 0,
+ 'ver': 0,
+ 'timestamp': 0,
+ 'size': 72,
+ 'hash': 'FF',
+ 'campaign': 'FF',
+ 'crc32': 0xFFFFFFFF,
+}
+
+def format_number(number, width):
+ # convert to string
+ line = format(number, '0%dx' % (width))
+ if len(line) > width:
+ print "[ERROR] 0x%s cannot fit in width %d" % (line, width)
+ sys.exit(-1)
+ # cut string to list & reverse
+ line = [line[i:i+2] for i in range(0, len(line), 2)]
+ line.reverse()
+ return binascii.a2b_hex("".join(line))
+
+def format_string(string):
+ return binascii.a2b_hex(string)
+
+def write_number(value, width, output):
+ output.write(format_number(value, width))
+
+def write_string(value, width, output):
+ output.write(format_string(value))
+
+def append_image_file(image, output):
+ input = open(image, "rb")
+ output.write(input.read())
+ input.close()
+
+def write_padding_bytes(output_name, size):
+ current_size = os.stat(output_name).st_size
+ padcount = size - current_size
+ if padcount < 0:
+ print "[ERROR] image is larger than expected size"
+ sys.exit(-1)
+ output = open(output_name, "ab")
+ output.write('\377' * padcount)
+ output.close()
+
+def crc32_checksum(string):
+ return binascii.crc32(string) & 0xFFFFFFFF
+
+def sha256_checksum(filename, block_size=65536):
+ sha256 = hashlib.sha256()
+ with open(filename, 'rb') as f:
+ for block in iter(lambda: f.read(block_size), b''):
+ sha256.update(block)
+ return sha256.hexdigest()
+
+def epoch_timestamp():
+ epoch = int(time.time())
+ return epoch
+
+def find_symbol(toolchain, mapfile, symbol):
+ ret = None
+
+ HEX = '0x0{,8}(?P<addr>[0-9A-Fa-f]{8})'
+ if toolchain == "GCC_ARM":
+ SYM = re.compile(r'^\s+' + HEX + r'\s+' + symbol + '\r?$')
+ elif toolchain in ["ARM_STD", "ARM", "ARM_MICRO"]:
+ SYM = re.compile(r'^\s+' + HEX + r'\s+0x[0-9A-Fa-f]{8}\s+Code.*\s+i\.' + symbol + r'\s+.*$')
+ elif toolchain == "IAR":
+ SYM = re.compile(r'^' + symbol + r'\s+' + HEX + '\s+.*$')
+
+ with open(mapfile, 'r') as infile:
+ for line in infile:
+ match = re.match(SYM, line)
+ if match:
+ ret = match.group("addr")
+
+ if not ret:
+ print "[ERROR] cannot find the address of symbol " + symbol
+ return 0
+
+ return int(ret,16) | 1
+
+def parse_load_segment_gcc(image_elf):
+ # Program Headers:
+ # Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
+ # LOAD 0x000034 0x10006000 0x10006000 0x026bc 0x026bc RW 0x8
+ # LOAD 0x0026f0 0x30000000 0x30000000 0x06338 0x06338 RWE 0x4
+ segment_list = []
+ cmd = os.path.join(TOOLCHAIN_PATHS['GCC_ARM'], 'arm-none-eabi-readelf')
+ cmd = '"' + cmd + '"' + ' -l ' + image_elf
+ for line in subprocess.check_output(cmd, shell=True, universal_newlines=True).split("\n"):
+ if not line.startswith(" LOAD"):
+ continue
+ segment = line.split()
+ if len(segment) != 8:
+ continue
+ offset = int(segment[1][2:], 16)
+ addr = int(segment[2][2:], 16)
+ size = int(segment[4][2:], 16)
+ if addr != 0 and size != 0:
+ segment_list.append((offset, addr, size))
+ return segment_list
+
+def parse_load_segment_armcc(image_elf):
+ # ====================================
+ #
+ # ** Program header #2
+ #
+ # Type : PT_LOAD (1)
+ # File Offset : 52 (0x34)
+ # Virtual Addr : 0x30000000
+ # Physical Addr : 0x30000000
+ # Size in file : 27260 bytes (0x6a7c)
+ # Size in memory: 42168 bytes (0xa4b8)
+ # Flags : PF_X + PF_W + PF_R + PF_ARM_ENTRY (0x80000007)
+ # Alignment : 8
+ #
+ (offset, addr, size) = (0, 0, 0)
+ segment_list = []
+ in_segment = False
+ cmd = os.path.join(TOOLCHAIN_PATHS['ARM'], 'bin', 'fromelf')
+ cmd = '"' + cmd + '"' + ' --text -v --only=none ' + image_elf
+ for line in subprocess.check_output(cmd, shell=True, universal_newlines=True).split("\n"):
+ if line == "":
+ pass
+ elif line.startswith("** Program header"):
+ in_segment = True
+ elif in_segment == False:
+ pass
+ elif line.startswith("============"):
+ if addr != 0 and size != 0:
+ segment_list.append((offset, addr, size))
+ in_segment = False
+ (offset, addr, size) = (0, 0, 0)
+ elif line.startswith(" Type"):
+ if not re.match(r'\s+Type\s+:\s+PT_LOAD\s.*$', line):
+ in_segment = False
+ elif line.startswith(" File Offset"):
+ match = re.match(r'^\s+File Offset\s+:\s+(?P<offset>\d+).*$', line)
+ if match:
+ offset = int(match.group("offset"))
+ elif line.startswith(" Virtual Addr"):
+ match = re.match(r'^\s+Virtual Addr\s+:\s+0x(?P<addr>[0-9a-f]+).*$', line)
+ if match:
+ addr = int(match.group("addr"), 16)
+ elif line.startswith(" Size in file"):
+ match = re.match(r'^\s+Size in file\s+:.*\(0x(?P<size>[0-9a-f]+)\).*$', line)
+ if match:
+ size = int(match.group("size"), 16)
+ return segment_list
+
+
+def parse_load_segment_iar(image_elf):
+ # SEGMENTS:
+ #
+ # Type Offset Virtual Physical File Sz Mem Sz Flags Align
+ # ---- ------ ------- -------- ------- ------ ----- -----
+ # 0: load 0x34 0x10006000 0x10006000 0x26bc 0x26bc 0x6 WR 0x8
+ # 1: load 0x26f0 0x30000000 0x30000000 0x6338 0x6338 0x7 XWR 0x4
+ #
+ # SECTIONS:
+ #
+ # Name Type Addr Offset Size Aln Lnk Inf ESz Flags
+ # ---- ---- ---- ------ ---- --- --- --- --- -----
+ # 1: .shstrtab strtab 0xfc4d8 0x60 0x4
+ # 2: .strtab strtab 0xfc538 0xbb3f 0x4
+
+ segment_list = []
+ in_segment = False
+ cmd = os.path.join(TOOLCHAIN_PATHS['IAR'], 'bin', 'ielfdumparm')
+ cmd = '"' + cmd + '"' + ' ' + image_elf
+ for line in subprocess.check_output(cmd, shell=True, universal_newlines=True).split("\n"):
+ if line.startswith(" SEGMENTS:"):
+ in_segment = True
+ elif in_segment == False:
+ pass
+ elif line.startswith(" SECTIONS:"):
+ break
+ elif re.match(r'^\s+\w+:\s+load\s+.*$', line):
+ segment = line.split()
+ offset = int(segment[2][2:], 16)
+ addr = int(segment[3][2:], 16)
+ size = int(segment[5][2:], 16)
+ if addr != 0 and size != 0:
+ segment_list.append((offset, addr, size))
+ return segment_list
+
+def parse_load_segment(toolchain, image_elf):
+ if toolchain == "GCC_ARM":
+ return parse_load_segment_gcc(image_elf)
+ elif toolchain in ["ARM_STD", "ARM", "ARM_MICRO"]:
+ return parse_load_segment_armcc(image_elf)
+ elif toolchain == "IAR":
+ return parse_load_segment_iar(image_elf)
+ else:
+ return []
+
+def create_payload(image_elf, ram2_bin, entry, segment):
+ file_elf = open(image_elf, "rb")
+ file_bin = open(ram2_bin, "wb")
+
+ write_number(int(entry), 8, file_bin)
+ write_number(int(len(segment)), 8, file_bin)
+ write_number(0xFFFFFFFF, 8, file_bin)
+ write_number(0xFFFFFFFF, 8, file_bin)
+
+ for (offset, addr, size) in segment:
+ file_elf.seek(offset)
+ # write image header - size & addr
+ write_number(addr, 8, file_bin)
+ write_number(size, 8, file_bin)
+ # write load segment
+ file_bin.write(file_elf.read(size))
+ delta = size % 4
+ if delta != 0:
+ padding = 4 - delta
+ write_number(0x0, padding * 2, file_bin)
+ file_bin.close()
+ file_elf.close()
+
+def create_daplink(image_bin, ram1_bin, ram2_bin):
+
+ # remove target binary file/path
+ if os.path.isfile(image_bin):
+ os.remove(image_bin)
+ else:
+ shutil.rmtree(image_bin)
+
+ RAM2_HEADER['tag'] = format_number(TAG, 8)
+ RAM2_HEADER['ver'] = format_number(VER, 8)
+ RAM2_HEADER['timestamp'] = format_number(epoch_timestamp(), 16)
+ RAM2_HEADER['size'] = format_number(os.stat(ram2_bin).st_size + 72, 8)
+ RAM2_HEADER['hash'] = format_string(sha256_checksum(ram2_bin))
+ RAM2_HEADER['campaign'] = format_string(CAMPAIGN)
+
+ output = open(image_bin, "wb")
+ append_image_file(ram1_bin, output)
+ append_image_file(ram2_bin, output)
+
+ output.seek(0xb000)
+ line = ""
+ for key in ['tag', 'ver', 'timestamp', 'size', 'hash', 'campaign']:
+ line += RAM2_HEADER[key]
+ output.write(RAM2_HEADER[key])
+
+ RAM2_HEADER['crc32'] = format_number(crc32_checksum(line), 8)
+
+ output.write(RAM2_HEADER['crc32'])
+ output.close()
+
+# ----------------------------
+# main function
+# ----------------------------
+def rtl8195a_elf2bin(t_self, image_elf, image_bin):
+
+ image_name = list(os.path.splitext(image_elf))[:-1]
+ image_map = ".".join(image_name + ['map'])
+
+ ram1_bin = os.path.join(TOOLS_BOOTLOADERS, "REALTEK_RTL8195AM", "ram_1.bin")
+ ram2_bin = ".".join(image_name) + '-payload.bin'
+
+ entry = find_symbol(t_self.name, image_map, "PLAT_Start")
+ segment = parse_load_segment(t_self.name, image_elf)
+
+ create_payload(image_elf, ram2_bin, entry, segment)
+ create_daplink(image_bin, ram1_bin, ram2_bin)