A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
1–10 of 18 posts
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#2Related. Others?
A Whirlwind Tutorial on Creating Teensy ELF Executables for Linux - https://news.ycombinator.com/item?id=32524007 - Aug 2022 (10 comments)
A Whirlwind Tutorial on Creating Really Teensy ELF Executables for Linux (1999) - https://news.ycombinator.com/item?id=21846785 - Dec 2019 (22 comments)
A Whirlwind Tutorial on Creating Really Teensy ELF Executables for Linux (2005) - https://news.ycombinator.com/item?id=11709247 - May 2016 (5 comments)
Creating Really Teensy ELF Executables for Linux - https://news.ycombinator.com/item?id=8745024 - Dec 2014 (13 comments)
The Teensy Files: Creating teensy ELF executables for Linux - https://news.ycombinator.com/item?id=8642734 - Nov 2014 (7 comments)
A Whirlwind Tutorial on Creating Really Teensy ELF Executables for Linux - https://news.ycombinator.com/item?id=5016434 - Jan 2013 (14 comments)
Tutorial on Creating Really Teensy ELF Executables for Linux - https://news.ycombinator.com/item?id=875077 - Oct 2009 (16 comments)
3998-byte executable reduced to 45 bytes - https://news.ycombinator.com/item?id=68056 - Oct 2007 (10 comments)
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#3Shameless plug: write your program in C, get almost as little size overhead as in the Whirlwind turorial: https://github.com/pts/minilibc686 (libc, compiler, linker, settings)
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#4Related. Others? A Whirlwind Tutorial on Creating Teensy ELF Executables for Linux - https://news.ycombinator.com/item?id=32524007 - Aug 2022 (10 comments) A Whirlwind Tutorial on Creating Really Teensy ELF Executables for Linux (1999) - https://news.ycombinator.com/item?id=21846785 - Dec 2019 (22 comments) A Whirlwind Tutorial on Creating Really Teensy ELF Executables for Linux (2005) - https://news.ycombinator.com/…
Plus if you want them to run on four OSes: https://justine.lol/sizetricks/#elf
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#5Does anyone recall an “intro to computing” style book that was available free online and starts with using the gas assembler and talked a lot about elf format executables? I lost the link a while ago and don’t recall the name.
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#6for those excited about tiny ELF executables, or tiny programs in general, check out the Lovebyte size-coding demoparty happening next weekend. It's likely there will be a few tiny ELF entries there.
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#7for those excited about tiny ELF executables, or tiny programs in general, check out the Lovebyte size-coding demoparty happening next weekend. It's likely there will be a few tiny ELF entries there.
That's neat, I didn't know that there was much sizecoding activity with ELFs, except for the BGGP competitions [0]. (Mainly because it's not nearly as easy to output graphics than on all the old-school platforms, I'd imagine.) Does Lovebyte publish previous years' demos anywhere?
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#8for those excited about tiny ELF executables, or tiny programs in general, check out the Lovebyte size-coding demoparty happening next weekend. It's likely there will be a few tiny ELF entries there.
That's neat, I didn't know that there was much sizecoding activity with ELFs, except for the BGGP competitions [0]. (Mainly because it's not nearly as easy to output graphics than on all the old-school platforms, I'd imagine.) Does Lovebyte publish previous years' demos anywhere? [0] https://binary.golf/
I don't know if there's a good way to search for them. Most of the Lovebyte entries can be found on pouet or demozoo.org but I don't know if there's an easy way to filter out only Linux entries.
I've written a few sizecoded raspberry pi entries, there's even a writeup of one of them in tmp.out where I loaded some code into the ELF headers https://tmpout.sh/3/08.html
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#9I tried to replicate this on my 64 bit machine, so
nasm -f elf64 tiny.s && ld -s tiny.o
; tiny.asm
BITS 64
GLOBAL _start
SECTION .text
_start:
mov eax, 1
mov ebx, 42
int 0x80
Re: A whirlwind tutorial on creating teensy ELF executables for Linux (1999)
#10Earlier quoted context omitted.
That's neat, I didn't know that there was much sizecoding activity with ELFs, except for the BGGP competitions [0]. (Mainly because it's not nearly as easy to output graphics than on all the old-school platforms, I'd imagine.) Does Lovebyte publish previous years' demos anywhere? [0] https://binary.golf/
I don't know if there's a good way to search for them. Most of the Lovebyte entries can be found on pouet or demozoo.org but I don't know if there's an easy way to filter out only Linux entries. I've written a few sizecoded raspberry pi entries, there's even a writeup of one of them in tmp.out where I loaded some code into the ELF headers https://tmpout.sh/3/08.html
Ah, then I suppose you'd be aware of my own forays into 64-bit ELFs (https://tmpout.sh/3/22.html)! I really should get around to publishing my writeup of the 73-byte minimum on Linux. (At least, it's 73 bytes for x86-64, since '\177E' at the start of the file jumps to byte 71, but it may be different under AArch64.) I have a nearly-complete draft, but I got caught on some oddities around the vDSO mapping which may or may not have changed across kernel versions, especially since the time I wrote it. Perhaps I should just jettison that section entirely and get the article out, since it's not like any of the x86 vDSOs have useful gadgets anyway.