/**
* Exit - cause normal process termination with specified status code
*/
void __attr_noreturn___ __attr_used___
exit (int status) /**< status code */
{
syscall_1 (__NR_close, (long int) stdin);
syscall_1 (__NR_close, (long int) stdout);
syscall_1 (__NR_close, (long int) stderr);
syscall_1 (__NR_exit_group, status);
while (true)
{
/* unreachable */
}
} /* exit */
/**
* Abort current process, producing an abnormal program termination.
* The function raises the SIGABRT signal.
*/
void __attr_noreturn___ __attr_used___
abort (void)
{
syscall_1 (SYSCALL_NO (close), (long int) stdin);
syscall_1 (SYSCALL_NO (close), (long int) stdout);
syscall_1 (SYSCALL_NO (close), (long int) stderr);
raise (SIGABRT);
while (true)
{
/* unreachable */
}
} /* abort */
/**
* Abort current process, producing an abnormal program termination.
* The function raises the SIGABRT signal.
*/
void __attr_noreturn___ __attr_used___
abort (void)
{
syscall_1 (__NR_close, (long int) stdin);
syscall_1 (__NR_close, (long int) stdout);
syscall_1 (__NR_close, (long int) stderr);
syscall_2 (__NR_kill, syscall_0 (__NR_getpid), SIGABRT);
while (true)
{
/* unreachable */
}
} /* abort */
int list_process(int flag)
{
int ret;
ret = (int) syscall_1(SYS_listprocess,(uint64_t)flag);
return ret;
}
void kill(int pid_t)
{
int ret;
ret = (int)syscall_1(SYS_killprocess,(uint64_t)pid_t);
if (ret < 0)
errno = ESRCH;
}
void* sbrk(signed increment)
{
void* ret;
ret =(void*)syscall_1((uint64_t)(12), ((uint64_t)(increment)) );
printf("here in user sbrk\n");
return ret;
}
/**
* Exit - cause normal process termination with specified status code
*/
void __attr_noreturn___ __attr_used___
exit (int status) /**< status code */
{
#ifdef ENABLE_INIT_FINI
libc_fini_array ();
#endif /* ENABLE_INIT_FINI */
syscall_1 (SYSCALL_NO (close), (long int) stdin);
syscall_1 (SYSCALL_NO (close), (long int) stdout);
syscall_1 (SYSCALL_NO (close), (long int) stderr);
syscall_1 (SYSCALL_NO (exit_group), status);
while (true)
{
/* unreachable */
}
} /* exit */
unsigned int
sleep(
unsigned int seconds)
{
unsigned int ret;
unsigned int ticks = seconds*1000;
ret =(unsigned int)syscall_1(SYS_nanosleep,(uint64_t)ticks);
return ret;
}
unsigned int
alarm(
unsigned int seconds)
{
unsigned int retSec;
retSec = (unsigned int)syscall_1(SYS_alarm,(uint64_t)seconds);
return retSec;
}
unsigned int alarm(unsigned int seconds)
{
unsigned int ret;
ret = syscall_1(SYS_alarm, seconds);
/* __asm__ __volatile__(
"syscall"
: "=r" (ret)
: "a"(SYS_alarm), "D"((uint64_t)seconds)
);*/
return ret;
}
int close(int fd)
{
int retvalue;
retvalue = syscall_1(SYS_close, fd);
if(retvalue >=0){
return retvalue;
}
return -1;
}
int chdir(const char* path)
{
int r;
r = syscall_1(SYS_chdir, (uint64_t)path);
if (r < 0)
{
printf("chdir failed\n");
return -1;
}
return 0;
}
int kill(int pid)
{
int result = 0;
result = (int) syscall_1(SYS_kill, (uint64_t)pid);
if(result < 0)
{
errno = (-1) * result;
return -1;
}
return result;
}
unsigned int sleep(unsigned int seconds)
{
unsigned int ret;
uint64_t input_ns=seconds;
ret = syscall_1(SYS_nanosleep, input_ns);
/* __asm__ __volatile__(
"syscall"
: "=a" (ret)
: "a"(SYS_nanosleep), "D"(input_ns)
);*/
return ret;
}
unsigned int sleep(unsigned int sec)
{
//printf("calling sleep");
int retvalue;
struct timespec t= {0,0};
t.tv_sec = sec;
t.tv_nsec = (sec - t.tv_sec)*1000000000;
retvalue = syscall_1(SYS_nanosleep, (uint64_t)&t);
//printf("sleep ret:%d",-retvalue);
if(retvalue >=0){
return retvalue;
}
return -1;
}
int chdir(const char *path){
int retvalue;
//char pathToSend[100];
//strcpy(pathToSend,path);
//printf("In libc PATH: %s\n", pathToSend );
retvalue=syscall_1(SYS_chdir,(uint64_t)path);
if(retvalue >=0){
return retvalue;
}
//errno = -retvalue;
return -1;
}
unsigned int alarm(unsigned int seconds)
{
unsigned int ret;
ret =syscall_1(SYS_alarm,((long)seconds));
return ret;
}
int kill(int pid){
return syscall_1(SYS_kill, pid);
}
unsigned int alarm(unsigned int seconds) {
return (unsigned int) syscall_1(SYS_alarm, (uint64_t) seconds);
}
void exit(int status)
{
syscall_1((long)(SYS_exit),((long)(status)));
}
void exit(int status) {
syscall_1(SYS_exit, status);
}
