如何以图形方式显示 .map 文件中的内存布局?-C/C++问题

How could I graphically display the memory layout from a .map file?(如何以图形方式显示 .map 文件中的内存布局?)

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问题描述

我的 gcc 构建工具链生成一个 .map 文件.如何以图形方式显示内存映射?

My gcc build toolchain produces a .map file. How do I display the memory map graphically?

推荐答案

这是 Python 脚本的开始.它将地图文件加载到部分和符号列表(前半部分)中.然后它使用 HTML 渲染地图(或使用 sections 和 symbols 列表做任何你想做的事情).

Here's the beginnings of a script in Python. It loads the map file into a list of Sections and Symbols (first half). It then renders the map using HTML (or do whatever you want with the sections and symbols lists).

您可以通过修改这些行来控制脚本:

You can control the script by modifying these lines:

with open('t.map') as f:
colors = ['9C9F84', 'A97D5D', 'F7DCB4', '5C755E']
total_height = 32.0

map2html.py

from __future__ import with_statement
import re

class Section:
    def __init__(self, address, size, segment, section):
        self.address = address
        self.size = size
        self.segment = segment
        self.section = section
    def __str__(self):
        return self.section+""

class Symbol:
    def __init__(self, address, size, file, name):
        self.address = address
        self.size = size
        self.file = file
        self.name = name
    def __str__(self):
        return self.name

#===============================
# Load the Sections and Symbols
#
sections = []
symbols = []

with open('t.map') as f:
    in_sections = True
    for line in f:
        m = re.search('^([0-9A-Fx]+)s+([0-9A-Fx]+)s+(([[ 0-9]+])|w+)s+(.*?)s*$', line)
        if m:
            if in_sections:
                sections.append(Section(eval(m.group(1)), eval(m.group(2)), m.group(3), m.group(5)))
            else:
                symbols.append(Symbol(eval(m.group(1)), eval(m.group(2)), m.group(3), m.group(5)))
        else:
            if len(sections) > 0:
                in_sections = False


#===============================
# Gererate the HTML File
#

colors = ['9C9F84', 'A97D5D', 'F7DCB4', '5C755E']
total_height = 32.0

segments = set()
for s in sections: segments.add(s.segment)
segment_colors = dict()
i = 0
for s in segments:
    segment_colors[s] = colors[i % len(colors)]
    i += 1

total_size = 0
for s in symbols:
    total_size += s.size

sections.sort(lambda a,b: a.address - b.address)
symbols.sort(lambda a,b: a.address - b.address)

def section_from_address(addr):
    for s in sections:
        if addr >= s.address and addr < (s.address + s.size):
            return s
    return None

print "<html><head>"
print "  <style>a { color: black; text-decoration: none; font-family:monospace }</style>"
print "<body>"
print "<table cellspacing='1px'>"
for sym in symbols:
    section = section_from_address(sym.address)
    height = (total_height/total_size) * sym.size
    font_size = 1.0 if height > 1.0 else height
    print "<tr style='background-color:#%s;height:%gem;line-height:%gem;font-size:%gem'><td style='overflow:hidden'>" % 
        (segment_colors[section.segment], height, height, font_size)
    print "<a href='#%s'>%s</a>" % (sym.name, sym.name)
    print "</td></tr>"
print "</table>"
print "</body></html>"

这是它输出的 HTML 的错误渲染:

And here's a bad rendering of the HTML it outputs:

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