Mapdump is a simple command-line tool that analyzes binaries to examine memory usage. It is built mainly for embedded C code.
You can download & install mapdump via pip:
$ pip3 install mapdump
You can also download and use mapdump by cloning this repo:
$ git clone https://github.com/sorjente/mapdump
$ cd mapdump/
$ python3 -m mapdump <my_binarys_map.map>
Note: custom options coming soon!
Using mapdump is very simple; you only need to provide it with the .map file corresponding to the binary you want
to analyze. Let's say I want to analyse hello_world.map:
$ mapdump hello_world.map
FLASH @ 0x0008000000 (524288 bytes)
****************************************
build/startup_stm32l452.o [460 bytes, 31.94% of FLASH space used]
lib_a-memcpy.o (/usr/lib/gcc/arm-none-eabi/6.3.1/../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard/libc.a) [308 bytes, 21.39% of FLASH space used]
rcc.o (./libopencm3/lib/libopencm3_stm32l4.a) [220 bytes, 15.28% of FLASH space used]
lib_a-memset.o (/usr/lib/gcc/arm-none-eabi/6.3.1/../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard/libc.a) [156 bytes, 10.83% of FLASH space used]
build/main.o [116 bytes, 8.06% of FLASH space used]
gpio_common_f0234.o (./libopencm3/lib/libopencm3_stm32l4.a) [68 bytes, 4.72% of FLASH space used]
flash_common_all.o (./libopencm3/lib/libopencm3_stm32l4.a) [36 bytes, 2.50% of FLASH space used]
flash_common_idcache.o (./libopencm3/lib/libopencm3_stm32l4.a) [32 bytes, 2.22% of FLASH space used]
rcc_common_all.o (./libopencm3/lib/libopencm3_stm32l4.a) [26 bytes, 1.81% of FLASH space used]
gpio_common_all.o (./libopencm3/lib/libopencm3_stm32l4.a) [18 bytes, 1.25% of FLASH space used]
Tests can (and should be!) run with the following command:
$ python3 -m unittest discover -s mapdump/tests
FAQs
A CLI tool that analyzes the memory usage of a binary via its .map file.
We found that mapdump demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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