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even more stuff

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@ -8,6 +8,8 @@ Authored and copyright by Ian Lance Taylor, collected here fore easy lookup.
## Index
### Main series
* [Linkers part 1: introduction](linkers-1.md)
* [Linkers part 2: technial introduction](linkers-2.md)
* [Linkers part 3: address spaces, object file formats](linkers-3.md)
@ -29,7 +31,7 @@ Authored and copyright by Ian Lance Taylor, collected here fore easy lookup.
* [Linkers part 19: `__start` and `__stop` symbols, byte swapping](linkers-19.md)
* [Linkers part 20: ending note](linkers-20.md)
Other articles included as well:
### Other articles included as well:
* [GCC exception frames](gcc-exception-frames.md)
* [Linker combreloc](linker-combreloc.md)
@ -43,7 +45,7 @@ Other articles included as well:
* [Executable stack](executable-stack.md)
* [Piece of PIE](piece-of-pie.md)
Even more articles, from [MaskRay's blog](https://maskray.me/blog/):
### Even more articles, from [MaskRay's blog](https://maskray.me/blog/):
* [Stack unwinding](maskray-1.md)
* [All about symbol versioning](maskray-2.md)
@ -54,3 +56,47 @@ Even more articles, from [MaskRay's blog](https://maskray.me/blog/):
* [Everything I know about GNU toolchain](maskray-7.md)
* [Metadata sections, COMDAT and `SHF_LINK_ORDER`](maskray-8.md)
## External links
Here's a collection of links about the subject, I'm putting these here because
people seem to find these useful.
* [`elf(5)` manpage](https://linux.die.net/man/5/elf)
* [https://cs.stevens.edu/%7Ejschauma/631A/elf.html](unofficial ELF docs) (has
more than the manpage, also has extra links)
* [glibc internals](http://s.eresi-project.org/inc/articles/elf-rtld.txt)
* [stuff about `.gnu.hash`](https://web.archive.org/web/20111022202443/http://blogs.oracle.com/ali/entry/gnu_hash_elf_sections)
* [Linux Internals & Dynamic Linking Wizardy](https://0x00sec.org/t/linux-internals-dynamic-linking-wizardry/1082);
[Linux Internals: The Art of Symbol Resolution](https://0x00sec.org/t/linux-internals-the-art-of-symbol-resolution/1488)
* [LWN article on the vDSO](https://lwn.net/Articles/446528/), the vDSO is a
dynamic library automatically inserted into every process by the kernel,
containing fast implementations of a few syscalls
* ["The bits between the bits: how we get to `main()`"](https://invidious.snopyta.org/watch?v=dOfucXtyEsU),
a talk, mostly talks about process instantiation
* [Everything You Always Wanted to Know About "Hello, World"](https://archive.fosdem.org/2017/schedule/event/hello_world/),
another talk
* "How programs get run" (LWN), [part 1](https://lwn.net/Articles/630727/),
[part 2](https://lwn.net/Articles/631631/), also talks about eg. initial
stack layout
* [Glibc startup procedure](https://www.gnu.org/software/hurd/glibc/startup.html),
technically hurd but mostly the same on Linux
* [The difference between all the `crt*.o` files](https://dev.gentoo.org/%7Evapier/crt.txt)
* [Official x86-64 ELF ABI spec](https://refspecs.linuxbase.org/elf/x86_64-abi-0.99.pdf) (PDF)
* [Official ELF Auxiliary vector reference](https://refspecs.linuxfoundation.org/LSB_1.3.0/IA64/spec/auxiliaryvector.html)
* Lots of useful stuff can be found on this website as well, see eg.
[here](https://refspecs.linuxfoundation.org/) and [here](https://refspecs.linuxfoundation.org/LSB_1.3.0/)
* [Glibc ld.so source code](https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=elf/dl-lookup.c)
* [GNU ld source code](https://sourceware.org/git/?p=binutils.git;a=blob_plain;f=bfd/elf.c)
* [Glibc How to debug ld.so](https://sourceware.org/glibc/wiki/Debugging/Loader_Debugging)
* Anatomy of a system call, LWN, [part 1](https://lwn.net/Articles/604287/),
[part 2](https://lwn.net/Articles/604515/)
* ["Linkers and Loaders"](http://becbapatla.ac.in/cse/naveenv/docs/LL1.pdf),
a book (PDF), more meant for general concepts than nitty ELF details. Also
talks about Java for some reason.
* [A Whirlwind Tutorial on Creating Really Teensy ELF Executables for
Linux](http://www.muppetlabs.com/~breadbox/software/tiny/teensy.html)
* [The Quest for minimal ELF binaries](https://github.com/faemiyah/dnload/blob/master/README.rst#the-quest-for-minimal-elf-binaries)
* [Linux sizecoding wiki](https://linux.weeaboo.software/explain-dot-md)
* [Rough transcriptions of a thread on Mastodon](masto-thread.md), my posts had
some useful info in them, so I saved these in this document.