M2-Planet/functions/execve.c

48 lines
1.3 KiB
C

## Copyright (C) 2016 Jeremiah Orians
## This file is part of stage0.
##
## stage0 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.
##
## stage0 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 stage0. 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("LOAD_EFFECTIVE_ADDRESS_ebx %12"
"LOAD_INTEGER_ebx"
"LOAD_EFFECTIVE_ADDRESS_ecx %8"
"LOAD_INTEGER_ecx"
"LOAD_EFFECTIVE_ADDRESS_edx %4"
"LOAD_INTEGER_edx"
"LOAD_IMMEDIATE_eax %7"
"INT_80");
}
int execve(char* file_name, char** argv, char** envp)
{
asm("LOAD_EFFECTIVE_ADDRESS_ebx %12"
"LOAD_INTEGER_ebx"
"LOAD_EFFECTIVE_ADDRESS_ecx %8"
"LOAD_INTEGER_ecx"
"LOAD_EFFECTIVE_ADDRESS_edx %4"
"LOAD_INTEGER_edx"
"LOAD_IMMEDIATE_eax %11"
"INT_80");
}