(*data->pre_exec)(data->pre_data);
execvp(argv[0], argv);
errval = errno;
- printk("execvp of '%s' failed - errno = %d\n", argv[0], errno);
+ printk("helper_child - execve of '%s' failed - errno = %d\n", argv[0], errno);
os_write_file(data->fd, &errval, sizeof(errval));
kill(os_getpid(), SIGKILL);
return(0);
if((stack_out != NULL) && (*stack_out != 0))
stack = *stack_out;
- else stack = alloc_stack(0, um_in_interrupt());
+ else stack = alloc_stack(0, __cant_sleep());
if(stack == 0)
return(-ENOMEM);
close(fds[1]);
fds[1] = -1;
- /*Read the errno value from the child.*/
+ /* Read the errno value from the child, if the exec failed, or get 0 if
+ * the exec succeeded because the pipe fd was set as close-on-exec. */
n = os_read_file(fds[0], &ret, sizeof(ret));
- if(n < 0){
+ if (n < 0) {
printk("run_helper : read on pipe failed, ret = %d\n", -n);
ret = n;
kill(pid, SIGKILL);
CATCH_EINTR(waitpid(pid, NULL, 0));
- }
- else if(n != 0){
+ } else if(n != 0){
CATCH_EINTR(n = waitpid(pid, NULL, 0));
ret = -errno;
} else {
unsigned long stack, sp;
int pid, status, err;
- stack = alloc_stack(stack_order, um_in_interrupt());
+ stack = alloc_stack(stack_order, __cant_sleep());
if(stack == 0) return(-ENOMEM);
sp = stack + (page_size() << stack_order) - sizeof(void *);