feat: add threading to Scheduler, fix desktop background selection freeze issue

2026-05-23 16:08:25 +02:00
parent a44a65d432
commit cd159235ca
15 changed files with 895 additions and 117 deletions
@@ -74,6 +74,7 @@ SyscallEntry:
 ; JumpToUserMode -- initial transition to ring 3 via IRETQ
 ;   RDI = user RIP (entry point)
 ;   RSI = user RSP (top of user stack)
+;   RDX = user RDI (first SystemV arg, e.g. thread arg; 0 for new processes)
 ; ====================================================================
 global JumpToUserMode
 JumpToUserMode:
@@ -86,5 +87,11 @@ JumpToUserMode:
    push 0x202                          ; RFLAGS (IF=1)
    push 0x23                           ; CS  = UserCode | RPL3
    push rdi                            ; RIP = entry point
+    mov rdi, rdx                        ; SystemV arg #1 -> user RDI
+    xor rsi, rsi                        ; zero argv-ish registers for hygiene
+    xor rdx, rdx
+    xor rcx, rcx
+    xor r8, r8
+    xor r9, r9
    swapgs                              ; switch from kernel GS to user GS
    iretq