nexoniarz/SchOS
nexoniarz/SchOS
Watch
1
0
Fork
You've already forked SchOS
 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Job control, function keys, and real sleeps

Browse source 
- SIGSTOP/SIGTSTP/SIGTTIN/SIGTTOU stop, SIGCONT resumes; the parent gets
  SIGCHLD and wait4 reports WUNTRACED/WCONTINUED; ps shows T. Ctrl-Z works,
  and mc no longer hangs waiting for its subshell to stop.
- Blocking reads (console, pty, pipe) and sleeps take a pending stop and
  carry on after SIGCONT; a caught signal without SA_RESTART ends them
  with EINTR.
- nanosleep reads tv_nsec (sleep 0.5 used to return at once), writes the
  remainder, and clock_nanosleep understands TIMER_ABSTIME.
- rt_sigaction uses the k_sigaction layout for Linux-ABI processes: the old
  action's restorer was written 112 bytes past the caller's struct. Flags
  are kept; SIGKILL and SIGSTOP cannot be caught.
- F1..F12 reach programs, as the Linux console sends them (PS/2, USB, I2C).
- TIOCLINUX subcode 6 answers "no modifiers" instead of echoing the 6 back.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4
This commit is contained in:
Nexoniarz 2026-10-25 02:37:45 +01:00
commit 2372806862
13 changed files with 366 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

4
kernel/fs/procfs.c
View file

@ -198,7 +198,7 @@ gen_pid_stat(struct sb *s, const struct procinfo *pi)
sbputs(s, " (");
sbputs(s, pi->name);
sbputs(s, ") ");
sbputc(s, state_char(pi->state));
sbputc(s, pi->stopped ? 'T' : state_char(pi->state));
sbputc(s, ' ');
sbputi(s, pi->ppid); // 4 ppid
sbputc(s, ' ');
@ -247,7 +247,7 @@ static void
gen_pid_status(struct sb *s, const struct procinfo *pi)
{
sbputs(s, "Name:\t"); sbputs(s, pi->name); sbputc(s, '\n');
sbputs(s, "State:\t"); sbputc(s, state_char(pi->state));
sbputs(s, "State:\t"); sbputc(s, pi->stopped ? 'T' : state_char(pi->state));
sbputs(s, "\nTgid:\t"); sbputi(s, pi->pid);
sbputs(s, "\nPid:\t"); sbputi(s, pi->pid);
sbputs(s, "\nPPid:\t"); sbputi(s, pi->ppid);