cosmopolitan/libc/runtime/executive.S

68 lines
2.7 KiB
ArmAsm

/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/dce.h"
#include "libc/macros.h"
#include "libc/notice.inc"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/consts/map.h"
#include "libc/dce.h"
.text.startup
.source __FILE__
/ Stack frame that owns process from spawn to exit.
/
/ @param edi is argc
/ @param rsi is argv
/ @param rdx is environ
/ @param rcx is auxv
/ @noreturn
_executive:
push %rbp
mov %rsp,%rbp
ezlea _base,bx
mov %edi,%r12d
mov %rsi,%r13
mov %rdx,%r14
mov %rcx,%r15
call _spawn
mov %r12d,%edi
mov %r13,%rsi
mov %r14,%rdx
mov %r15,%rcx
.weak main
call main
xchg %eax,%edi
call exit
.endfn _executive,weak,hidden
ud2
#ifdef __PG__
.init.start 800,_init_ftrace
push %rdi
push %rsi
mov %r12d,%edi
mov %r13,%rsi
call ftrace_init
mov %eax,%r12d
pop %rsi
pop %rdi
.init.end 800,_init_ftrace
#endif