iximiuz Labs Walks the Full C Toolchain by Building a Valid Program With No main()

r/programming (primary: labs.iximiuz.com)·low signal

An iximiuz Labs tutorial updated July 25 traces the preprocessor → compiler → assembler → linker pipeline to produce a running binary with no main() function, using -nostartfiles and the _start entry point rather than the usual #define token-pasting parlor tricks. It hit the r/programming front page (123 upvotes) and Hacker News (item 49048901). Useful as a hands-on refresher on what the C runtime actually does before your code runs — the kind of systems detail that matters when debugging what an agent-generated build script broke.