https://github.com/santerijps/small-c-executables

Tutorial: How to generate small C executables
https://github.com/santerijps/small-c-executables

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Tutorial: How to generate small C executables

• Host: GitHub
• URL: https://github.com/santerijps/small-c-executables
• Owner: santerijps
• Created: 2023-09-09T16:41:25.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2023-10-09T12:34:47.000Z (about 1 year ago)
• Last Synced: 2023-10-10T12:44:35.586Z (about 1 year ago)
• Language: C
• Size: 2.93 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Tutorial: Small C Executables

1. Provide optimizing flags to your C compiler

2. Use a nexecutable compressor (`UPX` used in these examples)

or if possible, use `TCC`.

## Cross platform compilation

```shell

gcc -Os -s -fno-ident -fno-asynchronous-unwind-tables -o out.exe hello_crossplatform.c

upx --best --lzma --ultra-brute -f --compress-icons=3 --8-bit --no-reloc --no-align -q -o out.compressed.exe out.exe

```

### With `TCC`

```shell

tcc -o out.exe hello_crossplatform.c

```

## Native compilation (Windows)

```shell

gcc -Os -s -fno-ident -fno-asynchronous-unwind-tables -nostdlib -o out.exe C:\Windows\System32\kernel32.dll hello_native.c

```