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esp-idf/tools/idf_size.py

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8.8 KiB
Python
Executable File
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#!/usr/bin/env python
#
# esp-idf alternative to "size" to print ELF file sizes, also analyzes
# the linker map file to dump higher resolution details.
#
# Includes information which is not shown in "xtensa-esp32-elf-size",
# or easy to parse from "xtensa-esp32-elf-objdump" or raw map files.
#
# Copyright 2017 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import argparse, sys, subprocess, re
import os.path
import pprint
DEFAULT_TOOLCHAIN_PREFIX = "xtensa-esp32-elf-"
CHIP_SIZES = {
"esp32" : {
"total_iram" : 0x20000,
"total_irom" : 0x330000,
"total_drom" : 0x800000,
# total dram is determined from objdump output
}
}
def scan_to_header(f, header_line):
""" Scan forward in a file until you reach 'header_line', then return """
for line in f:
if line.strip() == header_line:
return
raise RuntimeError("Didn't find line '%s' in file" % header_line)
def load_map_data(map_file):
memory_config = load_memory_config(map_file)
sections = load_sections(map_file)
return memory_config, sections
def output_section_for_address(memory_config, address):
for m in memory_config.values():
if m["origin"] <= address and m["origin"] + m["length"] > address:
return m["name"]
return None
def load_memory_config(map_file):
""" Memory Configuration section is the total size of each output section """
result = {}
scan_to_header(map_file, "Memory Configuration")
RE_MEMORY_SECTION = r"(?P<name>[^ ]+) +0x(?P<origin>[\da-f]+) +0x(?P<length>[\da-f]+)"
for line in map_file:
m = re.match(RE_MEMORY_SECTION, line)
if m is None:
if len(result) == 0:
continue # whitespace or a header, before the content we want
else:
return result # we're at the end of the Memory Configuration
section = {
"name" : m.group("name"),
"origin" : int(m.group("origin"), 16),
"length" : int(m.group("length"), 16),
}
if section["name"] != "*default*":
result[section["name"]] = section
raise RuntimeError("End of file while scanning memory configuration?")
def load_sections(map_file):
""" Load section size information from the MAP file.
Returns a dict of 'sections', where each key is a section name and the value
is a dict with details about this section, including a "sources" key which holds a list of source file line information for each symbol linked into the section.
"""
scan_to_header(map_file, "Linker script and memory map")
scan_to_header(map_file, "END GROUP")
sections = {}
section = None
for line in map_file:
# output section header, ie '.iram0.text 0x0000000040080400 0x129a5'
RE_SECTION_HEADER = r"(?P<name>[^ ]+) +0x(?P<address>[\da-f]+) +0x(?P<size>[\da-f]+)$"
m = re.match(RE_SECTION_HEADER, line)
if m is not None: # start of a new section
section = {
"name" : m.group("name"),
"address" : int(m.group("address"), 16),
"size" : int(m.group("size"), 16),
"sources" : [],
}
sections[section["name"]] = section
continue
# source file line, ie
# 0x0000000040080400 0xa4 /home/gus/esp/32/idf/examples/get-started/hello_world/build/esp32/libesp32.a(cpu_start.o)
RE_SOURCE_LINE = r".*? +0x(?P<address>[\da-f]+) +0x(?P<size>[\da-f]+) (?P<archive>.+\.a)\((?P<object_file>.+\.o)\)"
m = re.match(RE_SOURCE_LINE, line)
if section is not None and m is not None: # input source file details
source = {
"size" : int(m.group("size"), 16),
"address" : int(m.group("address"), 16),
"archive" : os.path.basename(m.group("archive")),
"object_file" : m.group("object_file"),
}
source["file"] = "%s:%s" % (source["archive"], source["object_file"])
section["sources"] += [ source ]
return sections
def sizes_by_key(sections, key):
""" Takes a dict of sections (from load_sections) and returns
a dict keyed by 'key' with aggregate output size information.
Key can be either "archive" (for per-archive data) or "file" (for per-file data) in the result.
"""
result = {}
for section in sections.values():
for s in section["sources"]:
if not s[key] in result:
result[s[key]] = {}
archive = result[s[key]]
if not section["name"] in archive:
archive[section["name"]] = 0
archive[section["name"]] += s["size"]
return result
def main():
parser = argparse.ArgumentParser("idf_size - a tool to print IDF elf file sizes")
parser.add_argument(
'--toolchain-prefix',
help="Triplet prefix to add before objdump executable",
default=DEFAULT_TOOLCHAIN_PREFIX)
parser.add_argument(
'map_file', help='MAP file produced by linker',
type=argparse.FileType('r'))
parser.add_argument(
'--archives', help='Print per-archive sizes', action='store_true')
parser.add_argument(
'--files', help='Print per-file sizes', action='store_true')
args = parser.parse_args()
memory_config, sections = load_map_data(args.map_file)
print_summary(memory_config, sections)
if args.archives:
print("Per-archive contributions to ELF file:")
print_detailed_sizes(sections, "archive", "Archive File")
if args.files:
print("Per-file contributions to ELF file:")
print_detailed_sizes(sections, "file", "Object File")
def print_summary(memory_config, sections):
def get_size(section):
try:
return sections[section]["size"]
except KeyError:
return 0
# if linker script changes, these need to change
total_iram = memory_config["iram0_0_seg"]["length"]
total_dram = memory_config["dram0_0_seg"]["length"]
used_data = get_size(".dram0.data")
used_bss = get_size(".dram0.bss")
used_dram = used_data + used_bss
used_iram = sum( get_size(s) for s in sections.keys() if s.startswith(".iram0") )
flash_code = get_size(".flash.text")
flash_rodata = get_size(".flash.rodata")
total_size = used_data + used_iram + flash_code + flash_rodata
print("Total sizes:")
print(" DRAM .data size: %7d bytes" % used_data)
print(" DRAM .bss size: %7d bytes" % used_bss)
print("Used static DRAM: %7d bytes (%7d available, %.1f%% used)" %
(used_dram, total_dram - used_dram,
100.0 * used_dram / total_dram))
print("Used static IRAM: %7d bytes (%7d available, %.1f%% used)" %
(used_iram, total_iram - used_iram,
100.0 * used_iram / total_iram))
print(" Flash code: %7d bytes" % flash_code)
print(" Flash rodata: %7d bytes" % flash_rodata)
print("Total image size:~%7d bytes (.bin may be padded larger)" % (total_size))
def print_detailed_sizes(sections, key, header):
sizes = sizes_by_key(sections, key)
sub_heading = None
headings = (header,
"DRAM .data",
"& .bss",
"IRAM",
"Flash code",
"& rodata",
"Total")
print("%24s %10s %6s %6s %10s %8s %7s" % headings)
for k in sorted(sizes.keys()):
v = sizes[k]
if ":" in k: # print subheadings for key of format archive:file
sh,k = k.split(":")
if sh != sub_heading:
print(sh)
sub_heading = sh
data = v.get(".dram0.data", 0)
bss = v.get(".dram0.bss", 0)
iram = sum(t for (s,t) in v.items() if s.startswith(".iram0"))
flash_text = v.get(".flash.text", 0)
flash_rodata = v.get(".flash.rodata", 0)
total = data + bss + iram + flash_text + flash_rodata
print("%24s %10d %6d %6d %10d %8d %7d" % (k[:24],
data,
bss,
iram,
flash_text,
flash_rodata,
total))
if __name__ == "__main__":
main()
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