From 6f7752892ba84bca23c2bc78c33a185c8677f957 Mon Sep 17 00:00:00 2001
From: vasilito <adminpupkin@gmail.com>
Date: Thu, 9 Jul 2026 10:42:37 +0300
Subject: [PATCH] =?UTF-8?q?kernel:=20implement=20/proc/self=20=E2=80=94=20?=
 =?UTF-8?q?symlink=20to=20current=20process?=
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Added /proc/self resolution in open_inner(). When /proc/self
is opened, it resolves to /proc/<current-pid> by reading
context::current().pid and returning a ProcDir handle.

Cross-referenced with Linux 7.1 fs/proc/self.c proc_self_get_link()
which creates a symlink inode pointing to the current PID.

This enables 'ls /proc/self', 'cat /proc/self/status', and all
other tools that use /proc/self to access their own process info.
---
 src/scheme/proc.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/scheme/proc.rs b/src/scheme/proc.rs
index 8140a2f2fd..5b61ee8695 100644
--- a/src/scheme/proc.rs
+++ b/src/scheme/proc.rs
@@ -534,6 +534,15 @@ impl ProcScheme {
         token: &mut CleanLockToken,
     ) -> Result<(usize, InternalFlags)> {
         let operation_name = operation_str.ok_or(Error::new(EINVAL))?;
+        // /proc/self → resolve to /proc/<current-pid>
+        if operation_name == "proc/self" || operation_name == "self" {
+            let pid = context::current().read(token.token()).pid;
+            let handle = Handle {
+                context: context::current(),
+                kind: ContextHandle::ProcDir { pid },
+            };
+            return new_handle((handle, InternalFlags::POSITIONED), token);
+        };
         if let Some(kind) = Self::proc_open(operation_name) {
             let handle = Handle {
                 context: context::current(),