proc_quit () and proc_test () syscalls

2026-01-03 12:21:56 +01:00
parent 124a7f7215
commit cf04e3db18
13 changed files with 130 additions and 7 deletions
--- a/kernel/amd64/syscallentry.S
+++ b/kernel/amd64/syscallentry.S
@@ -2,9 +2,6 @@

 .extern amd64_syscall_dispatch

-dupa:
-jmp dupa
-
 .global amd64_syscall_entry
 amd64_syscall_entry:
  cli
@@ -20,21 +17,41 @@ amd64_syscall_entry:
  pushq %rcx
  pushq $0
  pushq $0
+
  push_regs
+
+  swapgs
+
  cld
+
  movq %rsp, %rdi
+
+  movq %cr3, %rax
+  pushq %rax
+
  movq %rsp, %rbp
+
  subq $8, %rsp
  andq $~0xF, %rsp
+
  callq amd64_syscall_dispatch
+
  movq %rbp, %rsp
+
+  popq %rax
+  movq %rax, %cr3
+
  pop_regs
-  cli
+  
+  swapgs
+
  addq $16, %rsp
  popq %rcx
  addq $8, %rsp
  popq %r11
  addq $16, %rsp
  movq %gs:0, %rsp
+  
  swapgs
+
  sysretq