Luna/libs/libc/crt0.asm

section .text

extern _init
extern main
extern _fini
extern initialize_libc
extern exit

global _start
_start:
	; Set up end of the stack frame linked list.
	xor rbp, rbp
	push rbp ; rip=0
	push rbp ; rbp=0
	mov rbp, rsp

	push rdi
	push rsi

	call initialize_libc

	call _init

	pop rsi ; argv
	pop rdi ; argc

	call main

    push rax

    call _fini

    pop rdi

	call exit
WIP: Add a C Library, let's try to compile a Hosted GCC cross-compiler using this! 2022-10-01 18:59:22 +00:00			`section .text`

			`extern _init`
			`extern main`
			`extern _fini`
libc: make stdout and stderr functional what were before one extern FILE* without reference now are opened by libc on program initialization, to point to /dev/console by default. 2022-10-11 19:08:46 +00:00			`extern initialize_libc`
WIP: Add a C Library, let's try to compile a Hosted GCC cross-compiler using this! 2022-10-01 18:59:22 +00:00			`extern exit`

			`global _start`
			`_start:`
			`; Set up end of the stack frame linked list.`
			`xor rbp, rbp`
			`push rbp ; rip=0`
			`push rbp ; rbp=0`
			`mov rbp, rsp`

Kernel, libc, userspace: Implement command-line arguments (argv) The only thing missing now is for sh to pass them on. 2022-10-26 16:57:06 +00:00			`push rdi`
			`push rsi`

libc: make stdout and stderr functional what were before one extern FILE* without reference now are opened by libc on program initialization, to point to /dev/console by default. 2022-10-11 19:08:46 +00:00			`call initialize_libc`

WIP: Add a C Library, let's try to compile a Hosted GCC cross-compiler using this! 2022-10-01 18:59:22 +00:00			`call _init`

Kernel, libc, userspace: Implement command-line arguments (argv) The only thing missing now is for sh to pass them on. 2022-10-26 16:57:06 +00:00			`pop rsi ; argv`
			`pop rdi ; argc`
WIP: Add a C Library, let's try to compile a Hosted GCC cross-compiler using this! 2022-10-01 18:59:22 +00:00
			`call main`

			`push rax`

			`call _fini`

			`pop rdi`

			`call exit`