banan-os/libc/unistd.cpp

62 lines
921 B
C++

#include <BAN/Assert.h>
#include <stdarg.h>
#include <stddef.h>
#include <sys/syscall.h>
#include <unistd.h>
void _exit(int status)
{
syscall(SYS_EXIT, status);
ASSERT_NOT_REACHED();
}
long syscall(long syscall, ...)
{
va_list args;
va_start(args, syscall);
long ret = 0;
switch (syscall)
{
case SYS_EXIT:
ret = Kernel::syscall(SYS_EXIT, va_arg(args, int));
break;
case SYS_READ:
ret = Kernel::syscall(SYS_READ, va_arg(args, int), va_arg(args, void*), va_arg(args, size_t));
break;
case SYS_WRITE:
ret = Kernel::syscall(SYS_WRITE, va_arg(args, int), va_arg(args, const void*), va_arg(args, size_t));
break;
}
va_end(args);
return ret;
}
pid_t fork(void)
{
return -1;
}
int execv(const char*, char* const[])
{
return -1;
}
int execve(const char*, char* const[], char* const[])
{
return -1;
}
int execvp(const char*, char* const[])
{
return -1;
}
pid_t getpid(void)
{
return -1;
}