kernel/fiasco/src/kern/ux/kernel_thread-ux.cpp

   1 INTERFACE:
   2
   3 EXTENSION class Kernel_thread
   4 {
   5 public:
   6   static int    init_done();
   7
   8 private:
   9   static int    free_initcall_section_done;
  10 };
  11
  12 IMPLEMENTATION[ux]:
  13
  14 #include <unistd.h>
  15 #include <sys/mman.h>
  16 #include "boot_info.h"
  17 #include "fb.h"
  18 #include "kdb_ke.h"
  19 #include "net.h"
  20 #include "mem_layout.h"
  21 #include "pic.h"
  22 #include "trap_state.h"
  23 #include "usermode.h"
  24
  25 int Kernel_thread::free_initcall_section_done;
  26
  27 IMPLEMENT inline
  28 int
  29 Kernel_thread::init_done()
  30 {
  31   return free_initcall_section_done;
  32 }
  33
  34 IMPLEMENT inline NEEDS [<unistd.h>, <sys/mman.h>, "mem_layout.h"]
  35 void
  36 Kernel_thread::free_initcall_section()
  37 {
  38   munmap ((void*)&Mem_layout::initcall_start,
  39           &Mem_layout::initcall_end - &Mem_layout::initcall_start);
  40   free_initcall_section_done = 1;
  41 }
  42
  43 IMPLEMENT FIASCO_INIT
  44 void
  45 Kernel_thread::bootstrap_arch()
  46 {
  47   // install slow trap handler
  48   nested_trap_handler      = Trap_state::base_handler;
  49   Trap_state::base_handler = thread_handle_trap;
  50
  51   if (Boot_info::jdb_cmd())
  52     kdb_ke_sequence (Boot_info::jdb_cmd());
  53
  54   if (Boot_info::wait())
  55     kdb_ke ("Wait");
  56
  57   boot_app_cpus();
  58 }
  59
  60 IMPLEMENT
  61 void
  62 Kernel_thread::arch_exit()
  63 {
  64   fflush(0);  // Flush output stream
  65   Pic::irq_prov_shutdown(); // atexit calls are not run with _exit
  66   _exit(0);   // Don't call destructors
  67 }
  68
  69 //--------------------------------------------------------------------------
  70 IMPLEMENTATION [!mp]:
  71
  72 static void inline
  73 Kernel_thread::boot_app_cpus()
  74 {}
  75
  76
  77 //--------------------------------------------------------------------------
  78 IMPLEMENTATION [mp]:
  79
  80 static void
  81 Kernel_thread::boot_app_cpus()
  82 {
  83   printf("MP: launching APs...\n");
  84   if (0)
  85     {
  86        extern char _tramp_mp_entry[];
  87         printf("new child: %d   [%d]\n",
  88                Emulation::spawn_cpu_thread((Address)_tramp_mp_entry),
  89                Emulation::gettid());
  90     }
  91 }