I would like to use Valgrind tool for ESP8266 code & memory analysis.
I am trying to use it in Gitlab's job, the .elf file is 32-bits and is compiled in another job using platformio, ok with that.
In the Valgrind job, I am trying to use different docker images (which all are 64-bits), but I see similar errors when running Valgrind. I have been facing architecture issues because the .elf file is 32-bits and the image 64-bits, and then I am facing and issue with memcheck.
The commands running in the job are these ones:
uname --machine
x86_64
apt-get update && apt-get install -y valgrind valgrind-dbg g++ libc6-dbg
Installation is OK.
dpkg-query -L valgrind
Many directories are shown:
/usr/bin/valgrind /usr/include/valgrind /usr/lib/valgrind /usr/share/doc/valgrind (...)
export VALGRIND_LIB="/usr/lib/valgrind/"
export CFLAGS=-m32
file firmware.elf
firmware.elf: ELF 32-bit LSB executable, Tensilica Xtensa, version 1 (SYSV), statically linked, with debug_info, not stripped
linux32 --32bit valgrind --force-arch=i386 --leak-check=full ./firmware.elf
I have run this command with & without linux32 --32bit --force-arch=i386
When running the last command, I see 3 different errors depending on the docker image I am using:
image: vowstar/esp8266.
valgrind: wrong ELF executable class (eg. 32-bit instead of 64-bit) valgrind: ./firmware.elf: cannot execute binary file
image: i386/ubuntu.
valgrind: executable is not for this architecture valgrind: ./firmware.elf: cannot execute binary file
image: espressif/idf.
valgrind: failed to start tool 'memcheck' for platform 'amd64-linux': No such file or directory
Seems like the third image goes further, but I am unable to install memcheck.
Any easier way to use Valgrind in a docker image?
I know there are some similar questions about this, but nothing worked for me:
valgrind not building 32 bit rpm on 64 bit machine
How to compile a 32-bit binary on a 64-bit linux machine with gcc/cmake
ESP8266 has no MMU capable of virtual memory, so it's not possible to run dynamic linker on it, so it's not possible to run valgrind on ESP8266.