upexec: written in ASM it is a 242 bytes static ELF32

[robang74]

Hi, nice project. You might be interested in micro pipe exec:

• https://github.com/robang74/gzcmd.sh/blob/main/README.md#upexec

Do the same function of elfexec but upexec written in ASM it is a 242 bytes static ELF32

# Compile and test (simple example)

cc -Os -s hello.c -o hi && du -b hi && gzip -f hi && du -b hi.gz
# 14472 hi
#  1868 hi.gz

nasm -O2 -f bin upexec.asm -o upexec && du -b upexec && chmod a+x upexec
#   242 upexec

export WORLD=beatyful; zcat hi.gz | ./upexec $WORLD; echo $?
# Hello beatyful World!
#   HOME:  /home/roberto
#   WORLD: beatyful
# 0

file upexec
# upexec: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV),
# statically linked, no section header