Writing about embedded software, control systems, and technical explorations in aerospace engineeringhttps://jungminpark.com/en-ushttps://jungminpark.com/til/#2026-05-07https://jungminpark.com/til/#2026-05-07I assumed two linkers fed the same archives in the same order would produce the same binary. Debugging a build divergence, I found out they don't — ld.lld (LLVM's linker) pulled an object out of one archive, ld.bfd (the GNU linker, what most people mean by "GNU ld") pulled a same…Thu, 07 May 2026 00:00:00 GMThttps://jungminpark.com/til/#2026-04-21https://jungminpark.com/til/#2026-04-21I assumed annotating one branch with [[likely]] would make the compiler infer [[unlikely]] on the other. After all, in a plain if/else the other branch _is_ the inverse. vs. Building with arm-none-eabi-gcc, the second version sometimes produced **less code and a smaller stack fra…Tue, 21 Apr 2026 00:00:00 GMThttps://jungminpark.com/til/#2024-11-21https://jungminpark.com/til/#2024-11-21❤️_❤️Thu, 21 Nov 2024 00:00:00 GMThttps://jungminpark.com/til/#2024-11-20https://jungminpark.com/til/#2024-11-20You can use Ninja's built-in tool to generate the compile_commands.json. -t compdb tells Ninja to output the compilation database. Redirect the output to compile_commands.json.Wed, 20 Nov 2024 00:00:00 GMThttps://jungminpark.com/posts/first-post/https://jungminpark.com/posts/first-post/Hey! I'm finally getting this blog started. Really excited to share my thoughts, experiences, and cool stuff I come across. I was inspired by Julia Evans - specifically her posts Blogging principles I use and Some blogging myths which gave me that final push to start writing. Thi…Sat, 06 Jan 2024 00:00:00 GMT