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View Code? Open in Web Editor NEWMeasuring the size of Nim hello-world executables. This repo was created mainly as a citation for https://nim-lang.org/blog/2022/12/21/version-20-rc.html
License: MIT License
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Use `sstrip` for better stripping and other notes
I recently discovered an interesting tool - sstrip, see https://man.archlinux.org/man/community/elfkickers/sstrip.1.en
https://www.muppetlabs.com/~breadbox/software/elfkickers.html
sudo pacman -S elfkickers
It's a better strip that strips everything that isn't needed for the binary to run.
Also, FYI, -s for the C compiler is worse than using strip, so it should always be done.
Default repo (I don't have musl-* stuff):
98.2 KiB
67.3 KiB -d:release
39.6 KiB -d:release --passC:-flto --passL:-flto
34.5 KiB -d:release --passC:-flto --passL:-flto --passL:-s
26.5 KiB -d:release --passC:-flto --passL:-flto --passL:-s --opt:size
6.1 KiB -d:release --opt:size --panics:on -d:useMalloc --os:any -d:posix -d:noSignalHandler --cc=clang --clang.exe='/home/dian/Projects/NimExperiments/binary-size/zigcc' --clang.linkerexe='/home/dian/Projects/NimExperiments/binary-size/zigcc' --passC:'-flto -target x86_64-linux-musl' --passL:'-flto -target x86_64-linux-musl'
Use the strip command in the code for all compilers, not just zig cc:
82.4 KiB
58.4 KiB -d:release
34.4 KiB -d:release --passC:-flto --passL:-flto
34.4 KiB -d:release --passC:-flto --passL:-flto --passL:-s
26.4 KiB -d:release --passC:-flto --passL:-flto --passL:-s --opt:size
6.1 KiB -d:release --opt:size --panics:on -d:useMalloc --os:any -d:posix -d:noSignalHandler --cc=clang --clang.exe='/home/dian/Projects/NimExperiments/binary-size/zigcc' --clang.linkerexe='/home/dian/Projects/NimExperiments/binary-size/zigcc' --passC:'-flto -target x86_64-linux-musl' --passL:'-flto -target x86_64-linux-musl'
Use sstrip -z {filename} instead:
80.3 KiB
56.3 KiB -d:release
32.3 KiB -d:release --passC:-flto --passL:-flto
32.3 KiB -d:release --passC:-flto --passL:-flto --passL:-s
24.3 KiB -d:release --passC:-flto --passL:-flto --passL:-s --opt:size
5.3 KiB -d:release --opt:size --panics:on -d:useMalloc --os:any -d:posix -d:noSignalHandler --cc=clang --clang.exe='/home/dian/Projects/NimExperiments/binary-size/zigcc' --clang.linkerexe='/home/dian/Projects/NimExperiments/binary-size/zigcc' --passC:'-flto -target x86_64-linux-musl' --passL:'-flto -target x86_64-linux-musl'
As you can see, it saves ~1KB for zig cc and ~2KB for other compilers, for free :)
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