initial version of memory analyser

2026-07-27 19:57:38 +00:00 · 2017-04-02 17:51:13 +02:00
parent e44464f532
commit 07b6642823
1 changed files with 139 additions and 0 deletions
@@ -0,0 +1,139 @@
+#!/usr/bin/env python
+########################################################
+#
+# ESPEasy plugin memory analyser
+# edwin@datux.nl
+#
+###
+#  Based on:
+#  https://raw.githubusercontent.com/SmingHub/Sming/develop/tools/memanalyzer.py
+#  Memory Analyzer
+#  Author: Slavey Karadzhov <slav@attachix.com>
+#  Based on https://github.com/Sermus/ESP8266_memory_analyzer
+#
+########################################################
+from collections import OrderedDict
+import os.path
+import shlex
+import subprocess
+import sys
+import glob
+import os
+
+TOTAL_IRAM = 32786;
+TOTAL_DRAM = 81920;
+
+sections = OrderedDict([
+    ("data", "Initialized Data (RAM)"),
+    ("rodata", "ReadOnly Data (RAM)"),
+    ("bss", "Uninitialized Data (RAM)"),
+    ("text", "Cached Code (IRAM)"),
+    ("irom0_text", "Uncached Code (SPI)")
+])
+
+
+def abort(txt):
+    raise(Exception("error: "+txt))
+
+def analyse_memory(elfFile):
+    command = "%s -t '%s' " % (objectDumpBin, elfFile)
+    response = subprocess.check_output(shlex.split(command))
+    if isinstance(response, bytes):
+        response = response.decode('utf-8')
+    lines = response.split('\n')
+
+    # print("{0: >10}|{1: >30}|{2: >12}|{3: >12}|{4: >8}".format("Section", "Description", "Start (hex)", "End (hex)", "Used space"));
+    # print("------------------------------------------------------------------------------");
+    ret={}
+    usedRAM = 0
+    usedIRAM = 0
+
+    i = 0
+    for (id, descr) in list(sections.items()):
+        sectionStartToken = " _%s_start" %  id
+        sectionEndToken   = " _%s_end" % id
+        sectionStart = -1
+        sectionEnd = -1
+        for line in lines:
+            if sectionStartToken in line:
+                data = line.split(' ')
+                sectionStart = int(data[0], 16)
+
+            if sectionEndToken in line:
+                data = line.split(' ')
+                sectionEnd = int(data[0], 16)
+
+            if sectionStart != -1 and sectionEnd != -1:
+                break
+
+        sectionLength = sectionEnd - sectionStart
+        # if i < 3:
+        #     usedRAM += sectionLength
+        # if i == 3:
+        #     usedIRAM = TOTAL_IRAM - sectionLength;
+
+        ret[id]=sectionLength
+        # print("{0: >10}|{1: >30}|{2:12X}|{3:12X}|{4:8}".format(id, descr, sectionStart, sectionEnd, sectionLength))
+        # i += 1
+
+    # print("Total Used RAM : %d" % usedRAM)
+    # print("Free RAM : %d" % (TOTAL_DRAM - usedRAM))
+    # print("Free IRam : %d" % usedIRAM)
+    return(ret)
+
+################### start
+if len(sys.argv) < 1:
+    print("Usage: \n\t%s%s <path_to_objdump>" % sys.argv[0])
+    sys.exit(1)
+
+objectDumpBin = sys.argv[1]
+
+#restore deleted plugins
+subprocess.check_output("git ls-files -d | xargs git checkout --", shell=True)
+
+#modified files?
+if subprocess.check_output("git ls-files -m src", shell=True)!="":
+    abort("found modified files in src directory")
+
+#get list of all plugins
+plugins=glob.glob("src/_[CPN]*.ino")
+plugins.sort()
+
+#remove all plugins and get base size
+for plugin in plugins:
+    os.remove(plugin)
+
+output_format="{:<30}|{:<11}|{:<11}|{:<11}|{:<11}|{:<11}"
+print(output_format.format(
+    "plugin",
+    "cache IRAM",
+    "init RAM",
+    "r.o. RAM",
+    "uninit RAM",
+    "Flash ROM",
+))
+
+
+#build without plugins to get base memory usage
+subprocess.check_call("platformio run --silent --environment dev_4096", shell=True)
+#two times, sometimes it changes a few bytes somehow
+subprocess.check_call("platformio run --silent --environment dev_4096", shell=True)
+base=analyse_memory(".pioenvs/dev_4096/firmware.elf")
+
+
+plugin_results={}
+for plugin in plugins:
+    # print("building with {}".format(plugin))
+    subprocess.check_call("git checkout {}".format(plugin), shell=True)
+    subprocess.check_call("platformio run --silent --environment dev_4096", shell=True)
+    plugin_results[plugin]=analyse_memory(".pioenvs/dev_4096/firmware.elf")
+    os.remove(plugin)
+
+    print(output_format.format(
+        plugin,
+        plugin_results[plugin]['text']-base['text'],
+        plugin_results[plugin]['data']-base['data'],
+        plugin_results[plugin]['rodata']-base['rodata'],
+        plugin_results[plugin]['bss']-base['bss'],
+        plugin_results[plugin]['irom0_text']-base['irom0_text'],
+    ))