EMSIZE(1)

πŸŽ€ emsize(1) πŸŽ€

okay bestie, welcome to emsize β€” it's the emscripten replacement for size and honestly it's giving very niche-but-iconic πŸ’…. Sit down, hydrate, let's get into it.


✨ NAME ✨

emsize β€” emscripten replacement for size. literally that's the whole thing 🫢


πŸ’– DESCRIPTION πŸ’–

here's the vibe, fr fr. the usage is:

usage: emsize.py [-h] [-format FORMAT] file

So it's a size helper script β€” think of it as the girl who shows up to do the thing size does, but for emscripten πŸ’…. It acts as a frontend replacement for size that supports combining JS and wasm output from emscripten. The traditional size utility reports the size of each section in a binary and the total. This replacement adds another pseudo-section, "JS", which shows the size of the JavaScript loader file. ✨

ngl, currently there are many limitations 😭. basically this tool is enough to be used by the LLVM testsuite runner code to analyze size output. That's the whole assignment, she ate and left no crumbs.

Also: currently this tool only supports sysv output format β€” it accepts but ignores any '-format' argument πŸ™ˆ. It does not accept any other arguments aside from the input file, which is expected to be a JS file. The wasm file is expected to be in the same directory, and have the same basename with a '.wasm' extension. main character energy, but with rules πŸ¦‹

🌈 positional arguments 🌈

  • file β€” the one and only input bestie. it's a JS file, don't make it weird.

πŸ’œ options πŸ’œ

  • -h, --help β€” show this help message and exit. your little escape hatch πŸšͺ✨
  • -format, --format FORMAT β€” (yep, it's here, it exists, she's invited to the party... but per the description above, she gets accepted and then fully ignored πŸ’€)

🫢 friendly reminder: it's sysv format or nothing, and the -format flag is basically a decorative pillow. she's pretty, she's present, she changes nothing.

that's the whole page bestie, iykyk 🌸

β€” signed off with love: this is emsize 6.0.5+dfsg+~1.41.5, dated August 2026, and yep, we're still in the EMSIZE(1) section of the manual, periodt πŸ‘‘πŸ’–

πŸ“¦ where this page comes from