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C/C++ Source or Header  |  2006-08-11  |  3.7 KB  |  138 lines
  1. #ifndef _LINUX__INIT_TASK_H
  2. #define _LINUX__INIT_TASK_H
  3.  
  4. #include <linux/file.h>
  5. #include <linux/rcupdate.h>
  6.  
  7. #define INIT_FDTABLE \
  8. {                            \
  9.     .max_fds    = NR_OPEN_DEFAULT,         \
  10.     .max_fdset    = EMBEDDED_FD_SET_SIZE,        \
  11.     .fd        = &init_files.fd_array[0],     \
  12.     .close_on_exec    = (fd_set *)&init_files.close_on_exec_init, \
  13.     .open_fds    = (fd_set *)&init_files.open_fds_init,     \
  14.     .rcu        = RCU_HEAD_INIT,         \
  15.     .free_files    = NULL,                 \
  16.     .next        = NULL,                 \
  17. }
  18.  
  19. #define INIT_FILES \
  20. {                             \
  21.     .count        = ATOMIC_INIT(1),         \
  22.     .fdt        = &init_files.fdtab,         \
  23.     .fdtab        = INIT_FDTABLE,            \
  24.     .file_lock    = SPIN_LOCK_UNLOCKED,         \
  25.     .next_fd    = 0,                 \
  26.     .close_on_exec_init = { { 0, } },         \
  27.     .open_fds_init    = { { 0, } },             \
  28.     .fd_array    = { NULL, }             \
  29. }
  30.  
  31. #define INIT_KIOCTX(name, which_mm) \
  32. {                            \
  33.     .users        = ATOMIC_INIT(1),        \
  34.     .dead        = 0,                \
  35.     .mm        = &which_mm,            \
  36.     .user_id    = 0,                \
  37.     .next        = NULL,                \
  38.     .wait        = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
  39.     .ctx_lock    = SPIN_LOCK_UNLOCKED,        \
  40.     .reqs_active    = 0U,                \
  41.     .max_reqs    = ~0U,                \
  42. }
  43.  
  44. #define INIT_MM(name) \
  45. {                                 \
  46.     .mm_rb        = RB_ROOT,                \
  47.     .pgd        = swapper_pg_dir,             \
  48.     .mm_users    = ATOMIC_INIT(2),             \
  49.     .mm_count    = ATOMIC_INIT(1),             \
  50.     .mmap_sem    = __RWSEM_INITIALIZER(name.mmap_sem),    \
  51.     .page_table_lock =  SPIN_LOCK_UNLOCKED,         \
  52.     .mmlist        = LIST_HEAD_INIT(name.mmlist),        \
  53.     .cpu_vm_mask    = CPU_MASK_ALL,                \
  54. }
  55.  
  56. #define INIT_SIGNALS(sig) {    \
  57.     .count        = ATOMIC_INIT(1),         \
  58.     .wait_chldexit    = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
  59.     .shared_pending    = {                 \
  60.         .list = LIST_HEAD_INIT(sig.shared_pending.list),    \
  61.         .signal =  {{0}}}, \
  62.     .posix_timers     = LIST_HEAD_INIT(sig.posix_timers),        \
  63.     .cpu_timers    = INIT_CPU_TIMERS(sig.cpu_timers),        \
  64.     .rlim        = INIT_RLIMITS,                    \
  65.     .pgrp        = 1,                        \
  66.     .session    = 1,                        \
  67. }
  68.  
  69. #define INIT_SIGHAND(sighand) {                        \
  70.     .count        = ATOMIC_INIT(1),                 \
  71.     .action        = { { { .sa_handler = NULL, } }, },        \
  72.     .siglock    = SPIN_LOCK_UNLOCKED,                 \
  73. }
  74.  
  75. extern struct group_info init_groups;
  76.  
  77. /*
  78.  *  INIT_TASK is used to set up the first task table, touch at
  79.  * your own risk!. Base=0, limit=0x1fffff (=2MB)
  80.  */
  81. #define INIT_TASK(tsk)    \
  82. {                                    \
  83.     .state        = 0,                        \
  84.     .thread_info    = &init_thread_info,                \
  85.     .usage        = ATOMIC_INIT(2),                \
  86.     .flags        = 0,                        \
  87.     .lock_depth    = -1,                        \
  88.     .prio        = MAX_PRIO-20,                    \
  89.     .static_prio    = MAX_PRIO-20,                    \
  90.     .policy        = SCHED_NORMAL,                    \
  91.     .cpus_allowed    = CPU_MASK_ALL,                    \
  92.     .mm        = NULL,                        \
  93.     .active_mm    = &init_mm,                    \
  94.     .run_list    = LIST_HEAD_INIT(tsk.run_list),            \
  95.     .ioprio        = 0,                        \
  96.     .time_slice    = HZ,                        \
  97.     .tasks        = LIST_HEAD_INIT(tsk.tasks),            \
  98.     .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children),        \
  99.     .ptrace_list    = LIST_HEAD_INIT(tsk.ptrace_list),        \
  100.     .real_parent    = &tsk,                        \
  101.     .parent        = &tsk,                        \
  102.     .children    = LIST_HEAD_INIT(tsk.children),            \
  103.     .sibling    = LIST_HEAD_INIT(tsk.sibling),            \
  104.     .group_leader    = &tsk,                        \
  105.     .group_info    = &init_groups,                    \
  106.     .cap_effective    = CAP_INIT_EFF_SET,                \
  107.     .cap_inheritable = CAP_INIT_INH_SET,                \
  108.     .cap_permitted    = CAP_FULL_SET,                    \
  109.     .keep_capabilities = 0,                        \
  110.     .user        = INIT_USER,                    \
  111.     .comm        = "swapper",                    \
  112.     .thread        = INIT_THREAD,                    \
  113.     .fs        = &init_fs,                    \
  114.     .files        = &init_files,                    \
  115.     .signal        = &init_signals,                \
  116.     .sighand    = &init_sighand,                \
  117.     .pending    = {                        \
  118.         .list = LIST_HEAD_INIT(tsk.pending.list),        \
  119.         .signal = {{0}}},                    \
  120.     .blocked    = {{0}},                    \
  121.     .alloc_lock    = SPIN_LOCK_UNLOCKED,                \
  122.     .proc_lock    = SPIN_LOCK_UNLOCKED,                \
  123.     .journal_info    = NULL,                        \
  124.     .cpu_timers    = INIT_CPU_TIMERS(tsk.cpu_timers),        \
  125.     .fs_excl    = ATOMIC_INIT(0),                \
  126. }
  127.  
  128.  
  129. #define INIT_CPU_TIMERS(cpu_timers)                    \
  130. {                                    \
  131.     LIST_HEAD_INIT(cpu_timers[0]),                    \
  132.     LIST_HEAD_INIT(cpu_timers[1]),                    \
  133.     LIST_HEAD_INIT(cpu_timers[2]),                    \
  134. }
  135.  
  136.  
  137. #endif
  138.