49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* Copyright (C) 2020 deesix <deesix@tuta.io>
|
|
* This file is part of M2-Planet.
|
|
*
|
|
* M2-Planet 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, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* M2-Planet 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 M2-Planet. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
void exit(int value);
|
|
|
|
void _exit(int value)
|
|
{
|
|
exit(value);
|
|
}
|
|
|
|
int waitpid(int pid, int* status_ptr, int options)
|
|
{
|
|
asm("SET_X0_TO_MINUS_1"
|
|
"SET_X3_FROM_X0"
|
|
"SET_X0_FROM_BP" "SUB_X0_24" "DEREF_X0"
|
|
"SET_X2_FROM_X0"
|
|
"SET_X0_FROM_BP" "SUB_X0_16" "DEREF_X0"
|
|
"SET_X1_FROM_X0"
|
|
"SET_X0_FROM_BP" "SUB_X0_8" "DEREF_X0"
|
|
"SET_X8_TO_SYS_WAIT4"
|
|
"SYSCALL");
|
|
}
|
|
|
|
int execve(char* file_name, char** argv, char** envp)
|
|
{
|
|
asm(
|
|
"SET_X0_FROM_BP" "SUB_X0_24" "DEREF_X0"
|
|
"SET_X2_FROM_X0"
|
|
"SET_X0_FROM_BP" "SUB_X0_16" "DEREF_X0"
|
|
"SET_X1_FROM_X0"
|
|
"SET_X0_FROM_BP" "SUB_X0_8" "DEREF_X0"
|
|
"SET_X8_TO_SYS_EXECVE"
|
|
"SYSCALL");
|
|
}
|