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mbed-os/tools/memap.py

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#!/usr/bin/env python
"""Memory Map File Analyser for ARM mbed"""
from abc import abstractmethod, ABCMeta
from sys import stdout, exit, argv
from os import sep
from os.path import basename, dirname, join, relpath, commonprefix
import re
import csv
import json
import math
from argparse import ArgumentParser
from copy import deepcopy
from prettytable import PrettyTable
from tools.arm_pack_manager import Cache
from utils import argparse_filestring_type, \
argparse_lowercase_hyphen_type, argparse_uppercase_type
class _Parser(object):
"""Internal interface for parsing"""
__metaclass__ = ABCMeta
SECTIONS = ('.text', '.data', '.bss', '.heap', '.stack')
MISC_FLASH_SECTIONS = ('.interrupts', '.flash_config')
OTHER_SECTIONS = ('.interrupts_ram', '.init', '.ARM.extab',
'.ARM.exidx', '.ARM.attributes', '.eh_frame',
'.init_array', '.fini_array', '.jcr', '.stab',
'.stabstr', '.ARM.exidx', '.ARM')
def __init__(self):
self.modules = dict()
def module_add(self, object_name, size, section):
""" Adds a module or section to the list
Positional arguments:
object_name - name of the entry to add
size - the size of the module being added
section - the section the module contributes to
"""
if not object_name or not size or not section:
return
if object_name in self.modules:
self.modules[object_name].setdefault(section, 0)
self.modules[object_name][section] += size
return
obj_split = sep + basename(object_name)
for module_path, contents in self.modules.items():
if module_path.endswith(obj_split) or module_path == object_name:
contents.setdefault(section, 0)
contents[section] += size
return
new_module = {section: size}
self.modules[object_name] = new_module
def module_replace(self, old_object, new_object):
""" Replaces an object name with a new one
"""
if old_object in self.modules:
self.modules[new_object] = self.modules[old_object]
del self.modules[old_object]
@abstractmethod
def parse_mapfile(self, mapfile):
"""Parse a given file object pointing to a map file
Positional arguments:
mapfile - an open file object that reads a map file
return value - a dict mapping from object names to section dicts,
where a section dict maps from sections to sizes
"""
raise NotImplemented
class _GccParser(_Parser):
RE_OBJECT_FILE = re.compile(r'^(.+\/.+\.o)$')
RE_LIBRARY_OBJECT = re.compile(r'^.+' + sep + r'lib((.+\.a)\((.+\.o)\))$')
RE_STD_SECTION = re.compile(r'^\s+.*0x(\w{8,16})\s+0x(\w+)\s(.+)$')
RE_FILL_SECTION = re.compile(r'^\s*\*fill\*\s+0x(\w{8,16})\s+0x(\w+).*$')
ALL_SECTIONS = _Parser.SECTIONS + _Parser.OTHER_SECTIONS + \
_Parser.MISC_FLASH_SECTIONS + ('unknown', 'OUTPUT')
def check_new_section(self, line):
""" Check whether a new section in a map file has been detected
Positional arguments:
line - the line to check for a new section
return value - A section name, if a new section was found, False
otherwise
"""
for i in self.ALL_SECTIONS:
if line.startswith(i):
# should name of the section (assuming it's a known one)
return i
if line.startswith('.'):
return 'unknown' # all others are classified are unknown
else:
return False # everything else, means no change in section
def parse_object_name(self, line):
""" Parse a path to object file
Positional arguments:
line - the path to parse the object and module name from
return value - an object file name
"""
test_re_mbed_os_name = re.match(self.RE_OBJECT_FILE, line)
if test_re_mbed_os_name:
object_name = test_re_mbed_os_name.group(1)
# corner case: certain objects are provided by the GCC toolchain
if 'arm-none-eabi' in line:
return join('[lib]', 'misc', basename(object_name))
return object_name
else:
test_re_obj_name = re.match(self.RE_LIBRARY_OBJECT, line)
if test_re_obj_name:
return join('[lib]', test_re_obj_name.group(2),
test_re_obj_name.group(3))
else:
print "Unknown object name found in GCC map file: %s" % line
return '[misc]'
def parse_section(self, line):
""" Parse data from a section of gcc map file
examples:
0x00004308 0x7c ./BUILD/K64F/GCC_ARM/mbed-os/hal/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/spi_api.o
.text 0x00000608 0x198 ./BUILD/K64F/GCC_ARM/mbed-os/core/mbed-rtos/rtx/TARGET_CORTEX_M/TARGET_RTOS_M4_M7/TOOLCHAIN/HAL_CM4.o
Positional arguments:
line - the line to parse a section from
"""
is_fill = re.match(self.RE_FILL_SECTION, line)
if is_fill:
o_name = '[fill]'
o_size = int(is_fill.group(2), 16)
return [o_name, o_size]
is_section = re.match(self.RE_STD_SECTION, line)
if is_section:
o_size = int(is_section.group(2), 16)
if o_size:
o_name = self.parse_object_name(is_section.group(3))
return [o_name, o_size]
return ["", 0]
def parse_mapfile(self, file_desc):
""" Main logic to decode gcc map files
Positional arguments:
file_desc - a stream object to parse as a gcc map file
"""
current_section = 'unknown'
with file_desc as infile:
for line in infile:
if line.startswith('Linker script and memory map'):
current_section = "unknown"
break
for line in infile:
next_section = self.check_new_section(line)
if next_section == "OUTPUT":
break
elif next_section:
current_section = next_section
object_name, object_size = self.parse_section(line)
self.module_add(object_name, object_size, current_section)
common_prefix = dirname(commonprefix([
o for o in self.modules.keys() if (o.endswith(".o") and not o.startswith("[lib]"))]))
new_modules = {}
for name, stats in self.modules.items():
if name.startswith("[lib]"):
new_modules[name] = stats
elif name.endswith(".o"):
new_modules[relpath(name, common_prefix)] = stats
else:
new_modules[name] = stats
return new_modules
class _ArmccParser(_Parser):
RE = re.compile(
r'^\s+0x(\w{8})\s+0x(\w{8})\s+(\w+)\s+(\w+)\s+(\d+)\s+[*]?.+\s+(.+)$')
RE_OBJECT = re.compile(r'(.+\.(l|ar))\((.+\.o)\)')
def parse_object_name(self, line):
""" Parse object file
Positional arguments:
line - the line containing the object or library
"""
if line.endswith(".o"):
return line
else:
is_obj = re.match(self.RE_OBJECT, line)
if is_obj:
return join('[lib]', basename(is_obj.group(1)), is_obj.group(3))
else:
print "Malformed input found when parsing ARMCC map: %s" % line
return '[misc]'
def parse_section(self, line):
""" Parse data from an armcc map file
Examples of armcc map file:
Base_Addr Size Type Attr Idx E Section Name Object
0x00000000 0x00000400 Data RO 11222 self.RESET startup_MK64F12.o
0x00000410 0x00000008 Code RO 49364 * !!!main c_w.l(__main.o)
Positional arguments:
line - the line to parse the section data from
"""
test_re = re.match(self.RE, line)
if test_re:
size = int(test_re.group(2), 16)
if test_re.group(4) == 'RO':
section = '.text'
else:
if test_re.group(3) == 'Data':
section = '.data'
elif test_re.group(3) == 'Zero':
section = '.bss'
elif test_re.group(3) == 'Code':
section = '.text'
else:
print "Malformed input found when parsing armcc map: %s, %r" %\
(line, test_re.groups())
return ["", 0, ""]
# check name of object or library
object_name = self.parse_object_name(
test_re.group(6))
return [object_name, size, section]
else:
return ["", 0, ""]
def parse_mapfile(self, file_desc):
""" Main logic to decode armc5 map files
Positional arguments:
file_desc - a file like object to parse as an armc5 map file
"""
with file_desc as infile:
# Search area to parse
for line in infile:
if line.startswith(' Base Addr Size'):
break
# Start decoding the map file
for line in infile:
self.module_add(*self.parse_section(line))
common_prefix = dirname(commonprefix([
o for o in self.modules.keys() if (o.endswith(".o") and o != "anon$$obj.o" and not o.startswith("[lib]"))]))
new_modules = {}
for name, stats in self.modules.items():
if name == "anon$$obj.o" or name.startswith("[lib]"):
new_modules[name] = stats
elif name.endswith(".o"):
new_modules[relpath(name, common_prefix)] = stats
else:
new_modules[name] = stats
return new_modules
class _IarParser(_Parser):
RE = re.compile(
r'^\s+(.+)\s+(zero|const|ro code|inited|uninit)\s'
r'+0x(\w{8})\s+0x(\w+)\s+(.+)\s.+$')
RE_CMDLINE_FILE = re.compile(r'^#\s+(.+\.o)')
RE_LIBRARY = re.compile(r'^(.+\.a)\:.+$')
RE_OBJECT_LIBRARY = re.compile(r'^\s+(.+\.o)\s.*')
def __init__(self):
_Parser.__init__(self)
# Modules passed to the linker on the command line
# this is a dict because modules are looked up by their basename
self.cmd_modules = {}
def parse_object_name(self, object_name):
""" Parse object file
Positional arguments:
line - the line containing the object or library
"""
if object_name.endswith(".o"):
try:
return self.cmd_modules[object_name]
except KeyError:
return object_name
else:
return '[misc]'
def parse_section(self, line):
""" Parse data from an IAR map file
Examples of IAR map file:
Section Kind Address Size Object
.intvec ro code 0x00000000 0x198 startup_MK64F12.o [15]
.rodata const 0x00000198 0x0 zero_init3.o [133]
.iar.init_table const 0x00008384 0x2c - Linker created -
Initializer bytes const 0x00000198 0xb2 <for P3 s0>
.data inited 0x20000000 0xd4 driverAtmelRFInterface.o [70]
.bss zero 0x20000598 0x318 RTX_Conf_CM.o [4]
.iar.dynexit uninit 0x20001448 0x204 <Block tail>
HEAP uninit 0x20001650 0x10000 <Block tail>
Positional_arguments:
line - the line to parse section data from
"""
test_re = re.match(self.RE, line)
if test_re:
if (test_re.group(2) == 'const' or
test_re.group(2) == 'ro code'):
section = '.text'
elif (test_re.group(2) == 'zero' or
test_re.group(2) == 'uninit'):
if test_re.group(1)[0:4] == 'HEAP':
section = '.heap'
elif test_re.group(1)[0:6] == 'CSTACK':
section = '.stack'
else:
section = '.bss' # default section
elif test_re.group(2) == 'inited':
section = '.data'
else:
print "Malformed input found when parsing IAR map: %s" % line
return ["", 0, ""]
# lookup object in dictionary and return module name
object_name = self.parse_object_name(test_re.group(5))
size = int(test_re.group(4), 16)
return [object_name, size, section]
else:
return ["", 0, ""]
def check_new_library(self, line):
"""
Searches for libraries and returns name. Example:
m7M_tls.a: [43]
"""
test_address_line = re.match(self.RE_LIBRARY, line)
if test_address_line:
return test_address_line.group(1)
else:
return ""
def check_new_object_lib(self, line):
"""
Searches for objects within a library section and returns name. Example:
rt7M_tl.a: [44]
ABImemclr4.o 6
ABImemcpy_unaligned.o 118
ABImemset48.o 50
I64DivMod.o 238
I64DivZer.o 2
"""
test_address_line = re.match(self.RE_OBJECT_LIBRARY, line)
if test_address_line:
return test_address_line.group(1)
else:
return ""
def parse_command_line(self, lines):
"""Parse the files passed on the command line to the iar linker
Positional arguments:
lines -- an iterator over the lines within a file
"""
for line in lines:
if line.startswith("*"):
break
for arg in line.split(" "):
arg = arg.rstrip(" \n")
if (not arg.startswith("-")) and arg.endswith(".o"):
self.cmd_modules[basename(arg)] = arg
common_prefix = dirname(commonprefix(self.cmd_modules.values()))
self.cmd_modules = {s: relpath(f, common_prefix)
for s, f in self.cmd_modules.items()}
def parse_mapfile(self, file_desc):
""" Main logic to decode IAR map files
Positional arguments:
file_desc - a file like object to parse as an IAR map file
"""
with file_desc as infile:
self.parse_command_line(infile)
for line in infile:
if line.startswith(' Section '):
break
for line in infile:
self.module_add(*self.parse_section(line))
if line.startswith('*** MODULE SUMMARY'): # finish section
break
current_library = ""
for line in infile:
library = self.check_new_library(line)
if library:
current_library = library
object_name = self.check_new_object_lib(line)
if object_name and current_library:
temp = join('[lib]', current_library, object_name)
self.module_replace(object_name, temp)
return self.modules
class MemapParser(object):
"""An object that represents parsed results, parses the memory map files,
and writes out different file types of memory results
"""
print_sections = ('.text', '.data', '.bss')
# sections to print info (generic for all toolchains)
sections = _Parser.SECTIONS
misc_flash_sections = _Parser.MISC_FLASH_SECTIONS
other_sections = _Parser.OTHER_SECTIONS
def __init__(self):
# list of all modules and their sections
# full list - doesn't change with depth
self.modules = dict()
# short version with specific depth
self.short_modules = dict()
# Memory report (sections + summary)
self.mem_report = []
# Memory summary
self.mem_summary = dict()
# Totals of ".text", ".data" and ".bss"
self.subtotal = dict()
# Flash no associated with a module
self.misc_flash_mem = 0
def reduce_depth(self, depth):
"""
populates the short_modules attribute with a truncated module list
(1) depth = 1:
main.o
mbed-os
(2) depth = 2:
main.o
mbed-os/test.o
mbed-os/drivers
"""
if depth == 0 or depth == None:
self.short_modules = deepcopy(self.modules)
else:
self.short_modules = dict()
for module_name, v in self.modules.items():
split_name = module_name.split(sep)
if split_name[0] == '':
split_name = split_name[1:]
new_name = join(*split_name[:depth])
self.short_modules.setdefault(new_name, {})
for section_idx, value in v.items():
self.short_modules[new_name].setdefault(section_idx, 0)
self.short_modules[new_name][section_idx] += self.modules[module_name][section_idx]
export_formats = ["json", "csv-ci", "table"]
def generate_output(self, export_format, depth, file_output=None, *args):
""" Generates summary of memory map data
Positional arguments:
export_format - the format to dump
Keyword arguments:
file_desc - descriptor (either stdout or file)
depth - directory depth on report
Returns: generated string for the 'table' format, otherwise None
"""
self.reduce_depth(depth)
self.compute_report()
try:
if file_output:
file_desc = open(file_output, 'wb')
else:
file_desc = stdout
except IOError as error:
print "I/O error({0}): {1}".format(error.errno, error.strerror)
return False
to_call = {'json': self.generate_json,
'csv-ci': self.generate_csv,
'table': self.generate_table,
'bars': self.generate_bars}[export_format]
output = to_call(file_desc, *args)
if file_desc is not stdout:
file_desc.close()
return output
def generate_json(self, file_desc):
"""Generate a json file from a memory map
Positional arguments:
file_desc - the file to write out the final report to
"""
file_desc.write(json.dumps(self.mem_report, indent=4))
file_desc.write('\n')
return None
def generate_csv(self, file_desc):
"""Generate a CSV file from a memoy map
Positional arguments:
file_desc - the file to write out the final report to
"""
csv_writer = csv.writer(file_desc, delimiter=',',
quoting=csv.QUOTE_MINIMAL)
csv_module_section = []
csv_sizes = []
for i in sorted(self.short_modules):
for k in self.print_sections:
csv_module_section += [i+k]
csv_sizes += [self.short_modules[i][k]]
csv_module_section += ['static_ram']
csv_sizes += [self.mem_summary['static_ram']]
csv_module_section += ['total_flash']
csv_sizes += [self.mem_summary['total_flash']]
csv_writer.writerow(csv_module_section)
csv_writer.writerow(csv_sizes)
return None
def generate_table(self, file_desc):
"""Generate a table from a memoy map
Returns: string of the generated table
"""
# Create table
columns = ['Module']
columns.extend(self.print_sections)
table = PrettyTable(columns)
table.align["Module"] = "l"
for col in self.print_sections:
table.align[col] = 'r'
for i in list(self.print_sections):
table.align[i] = 'r'
for i in sorted(self.short_modules):
row = [i]
for k in self.print_sections:
row.append(self.short_modules[i][k])
table.add_row(row)
subtotal_row = ['Subtotals']
for k in self.print_sections:
subtotal_row.append(self.subtotal[k])
table.add_row(subtotal_row)
output = table.get_string()
output += '\n'
output += "Total Static RAM memory (data + bss): %s bytes\n" % \
str(self.mem_summary['static_ram'])
output += "Total Flash memory (text + data): %s bytes\n" % \
str(self.mem_summary['total_flash'])
return output
def generate_bars(self, file_desc, device_name=None):
""" Generates nice looking bars that represent the memory consumption
Returns: string containing nice looking bars
"""
# TODO add tty detection, and width detection probably
WIDTH = 72
try:
# NOTE this only works on linux
import sys, fcntl, termios, struct
height, width, _, _ = struct.unpack('HHHH',
fcntl.ioctl(sys.stdout.fileno(), termios.TIOCGWINSZ,
struct.pack('HHHH', 0, 0, 0, 0)))
WIDTH = min(width, WIDTH)
except Exception:
pass
text = self.subtotal['.text']
data = self.subtotal['.data']
bss = self.subtotal['.bss']
rom_used = self.mem_summary['total_flash']
ram_used = self.mem_summary['static_ram']
# No device_name = no cmsis-pack = we don't know the memory layout
if device_name is not None:
try:
cache = Cache(False, False)
cmsis_part = cache.index[device_name]
rom_avail = int(cmsis_part['memory']['IROM1']['size'], 0)
ram_avail = int(cmsis_part['memory']['IRAM1']['size'], 0)
except KeyError:
# If we don't have the expected regions, fall back to no device_name
device_name = None
PREFIXES = ['', 'K', 'M', 'G', 'T', 'P', 'E']
def unit(n, u='B', p=3):
if n == 0:
return '0' + u
scale = math.floor(math.log(n, 1024))
return '{1:.{0}g}{2}{3}'.format(p, n/(1024**scale), PREFIXES[int(scale)], u)
usage = "Text {} Data {} BSS {}".format(unit(text), unit(data), unit(bss))
avail = "ROM {} RAM {}".format(unit(rom_used), unit(ram_used))
output = ["{0} {1:>{2}}".format(usage, avail,
abs(WIDTH-len(usage)-1) if device_name is not None else 0)]
if device_name is not None:
for region, avail, uses in [
('ROM', rom_avail, [('|', text), ('|', data)]),
('RAM', ram_avail, [('|', bss), ('|', data)])]:
barwidth = WIDTH-17 - len(region)
used = sum(use for c, use in uses)
bars = [(c, (barwidth*use) // avail) for c, use in uses]
bars.append((' ', barwidth - sum(width for c, width in bars)))
bars = ''.join(c*width for c, width in bars)
output.append("{0} [{2:<{1}}] {3:>13}".format(
region, barwidth, bars,
"{}/{}".format(unit(used), unit(avail))))
return '\n'.join(output)
toolchains = ["ARM", "ARM_STD", "ARM_MICRO", "GCC_ARM", "GCC_CR", "IAR"]
def compute_report(self):
""" Generates summary of memory usage for main areas
"""
for k in self.sections:
self.subtotal[k] = 0
for i in self.short_modules:
for k in self.sections:
self.short_modules[i].setdefault(k, 0)
self.subtotal[k] += self.short_modules[i][k]
self.mem_summary = {
'static_ram': (self.subtotal['.data'] + self.subtotal['.bss']),
'total_flash': (self.subtotal['.text'] + self.subtotal['.data']),
}
self.mem_report = []
for i in sorted(self.short_modules):
self.mem_report.append({
"module":i,
"size":{
k: self.short_modules[i][k] for k in self.print_sections
}
})
self.mem_report.append({
'summary': self.mem_summary
})
def parse(self, mapfile, toolchain):
""" Parse and decode map file depending on the toolchain
Positional arguments:
mapfile - the file name of the memory map file
toolchain - the toolchain used to create the file
"""
if toolchain in ("ARM", "ARM_STD", "ARM_MICRO", "ARMC6"):
parser = _ArmccParser()
elif toolchain == "GCC_ARM" or toolchain == "GCC_CR":
parser = _GccParser()
elif toolchain == "IAR":
parser = _IarParser()
else:
return False
try:
with open(mapfile, 'r') as file_input:
self.modules = parser.parse_mapfile(file_input)
return True
except IOError as error:
print "I/O error({0}): {1}".format(error.errno, error.strerror)
return False
def main():
"""Entry Point"""
version = '0.4.0'
# Parser handling
parser = ArgumentParser(
description="Memory Map File Analyser for ARM mbed\nversion %s" %
version)
parser.add_argument(
'file', type=argparse_filestring_type, help='memory map file')
parser.add_argument(
'-t', '--toolchain', dest='toolchain',
help='select a toolchain used to build the memory map file (%s)' %
", ".join(MemapParser.toolchains),
required=True,
type=argparse_uppercase_type(MemapParser.toolchains, "toolchain"))
parser.add_argument(
'-d', '--depth', dest='depth', type=int,
help='specify directory depth level to display report', required=False)
parser.add_argument(
'-o', '--output', help='output file name', required=False)
parser.add_argument(
'-e', '--export', dest='export', required=False, default='table',
type=argparse_lowercase_hyphen_type(MemapParser.export_formats,
'export format'),
help="export format (examples: %s: default)" %
", ".join(MemapParser.export_formats))
parser.add_argument('-v', '--version', action='version', version=version)
# Parse/run command
if len(argv) <= 1:
parser.print_help()
exit(1)
args = parser.parse_args()
# Create memap object
memap = MemapParser()
# Parse and decode a map file
if args.file and args.toolchain:
if memap.parse(args.file, args.toolchain) is False:
exit(0)
if args.depth is None:
depth = 2 # default depth level
else:
depth = args.depth
returned_string = None
# Write output in file
if args.output != None:
returned_string = memap.generate_output(args.export, \
depth, args.output)
else: # Write output in screen
returned_string = memap.generate_output(args.export, depth)
if args.export == 'table' and returned_string:
print returned_string
exit(0)
if __name__ == "__main__":
main()
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