Writing a (valid) C program without main()
This tutorial was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis. Tutorial on Programming, Linux Last updated: Jul 25, 2026Writing a (valid) C program without main()by Başar SubaşıWalk through the C compilation pipeline: preprocessor, compiler, assembler, and linker.
- ▪This tutorial was created by a community author.
- ▪Community content is reviewed by the iximiuz Labs team on a best effort basis.
- ▪Tutorial on Programming, Linux Last updated: Jul 25, 2026Writing a (valid) C program without main()by Başar SubaşıWalk through the C compilation pipeline: preprocessor, compiler, assembler, and linker.
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| Original publisher | iximiuz Labs |
| Canonical URL | https://labs.iximiuz.com/tutorials/c-program-without-main-a1eea557 |
| Publication time | Sat, 25 Jul 2026 16:21:13 +0000 |
| Retrieval time | 2026-07-25T16:42:20.199Z |
| Last seen | 2026-07-25T16:42:20.199Z |
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| Commercial reuse | May the content be reused commercially? | Not permitted |
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This tutorial was created by a community author. Community content is reviewed by the iximiuz Labs team on a best effort basis. Tutorial on Programming, Linux Last updated: Jul 25, 2026Writing a (valid) C program without main()by Başar SubaşıWalk through the C compilation pipeline: preprocessor, compiler, assembler, and linker. Start with a normal hello world, inspect macros and generated assembly, and end by producing a running binary that has no main() function.Why C?Most programming languages start execution from a main() function. Go has func main(), Java has public static void main(), and C has int main(). So why did I pick C for this tutorial?C is the closest you can get to the operating system without writing assembly.
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