[DRAFT] Attempt to add basic libraries for Assembly

[partouf]

Would fix #4160

Doesn't actually work. Linking with just ld to libc results in a bad executable that won't execute. (bash: ./ce-asm-executable: No such file or directory)

It might be that you can't actually use libc out of context of all the crt code and gcc.

Examples on the internet seem to just use gcc to link, for example

• https://forums.linuxmint.com/viewtopic.php?t=328218
• https://cs.lmu.edu/~ray/notes/nasmtutorial/

But as soon as you link with gcc, you cannot provide a _start, you have to provide a main and a host of different functions.

http://dbp-consulting.com/tutorials/debugging/linuxProgramStartup.html gives a nice overview, especially with the graph at the end.

Perhaps this is the point where instead we start providing different libc implementations, because gnu's one is just too much spaghetti...

[partouf]

discord user sbdswr mentioned the following to work:

$ cat hello.s
extern puts

msg db "Hello, ld!", 0

global main
main:
    mov edi, msg
    call puts

    xor eax, eax
    ret
$ nasm -felf64 hello.s
$ ld -I/usr/lib64/ld-linux-x86-64.so.2 /usr/lib64/crt1.o -lc hello.o -o hello
$ ./hello
Hello, ld!