From: Tulio A M Mendes <tadryanom@hotmail.com>
Date: Mon, 9 Feb 2026 22:31:03 +0000 (-0300)
Subject: docs: update POSIX roadmap with sigreturn
X-Git-Url: https://projects.tadryanom.me/?a=commitdiff_plain;h=3812a60ac0498cbb3455a6449470575debc3c6e1;p=AdrOS.git

docs: update POSIX roadmap with sigreturn
---

diff --git a/docs/POSIX_ROADMAP.md b/docs/POSIX_ROADMAP.md
index dcedb20..fd2263a 100644
--- a/docs/POSIX_ROADMAP.md
+++ b/docs/POSIX_ROADMAP.md
@@ -56,6 +56,7 @@ Notes:
 - [x] `getppid()`
 - [x] `select()` / `poll()` (minimal)
 - [~] Basic signals (`sigaction`, `sigprocmask`, `kill`) (delivery model is minimal)
+- [x] `sigreturn()` trampoline (userspace return path for signal handlers)
 - [x] `setsid()` / `setpgid()` / `getpgrp()` (minimal)
 
 ### FD layer
@@ -188,6 +189,10 @@ Goal: get a writable filesystem (even if volatile) and a real VFS layout.
 - [x] `getppid()`
 - [~] Signals + basic job control (`SIGTTIN`/`SIGTTOU` for background TTY I/O)
 
+#### Signals (details)
+- [x] `sigreturn()` syscall + userspace trampoline return path
+- [x] Userspace smoke test: signal handler returns correctly (see `user/init.c`)
+
 ### Pipes + IO multiplexing
 - [x] `pipe()`
 - [x] `dup/dup2`