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glibc  2.9
Classes | Defines | Typedefs
tls.h File Reference
#include <dl-sysdep.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <list.h>
#include <kernel-features.h>
#include <sysdep.h>
#include <nptl/descr.h>

Go to the source code of this file.

Classes

union  dtv
struct  tcbhead_t
struct  dtv.pointer

Defines

#define TLS_MULTIPLE_THREADS_IN_TCB   1
#define STACK_ALIGN   16
#define TLS_INIT_TCB_SIZE   sizeof (struct pthread)
#define TLS_INIT_TCB_ALIGN   __alignof__ (struct pthread)
#define TLS_TCB_SIZE   sizeof (struct pthread)
#define TLS_TCB_ALIGN   __alignof__ (struct pthread)
#define TLS_TCB_AT_TP   1
#define INSTALL_DTV(descr, dtvp)   ((tcbhead_t *) (descr))->dtv = (dtvp) + 1
#define INSTALL_NEW_DTV(dtv)   (((tcbhead_t *) __builtin_thread_pointer ())->dtv = (dtv))
#define GET_DTV(descr)   (((tcbhead_t *) (descr))->dtv)
#define INIT_SYSINFO
#define TLS_INIT_TP(thrdescr, secondcall)
#define THREAD_DTV()   (((tcbhead_t *) __builtin_thread_pointer ())->dtv)
#define THREAD_SELF   ((struct pthread *) __builtin_thread_pointer ())
#define DB_THREAD_SELF
#define THREAD_GETMEM(descr, member)   descr->member
#define THREAD_GETMEM_NC(descr, member, idx)   descr->member[idx]
#define THREAD_SETMEM(descr, member, value)   descr->member = (value)
#define THREAD_SETMEM_NC(descr, member, idx, value)   descr->member[idx] = (value)
#define THREAD_SET_STACK_GUARD(value)
#define THREAD_COPY_STACK_GUARD(descr)
#define THREAD_GET_POINTER_GUARD()   THREAD_GETMEM (THREAD_SELF, header.stack_guard)
#define THREAD_SET_POINTER_GUARD(value)
#define THREAD_COPY_POINTER_GUARD(descr)
#define THREAD_GSCOPE_FLAG_UNUSED   0
#define THREAD_GSCOPE_FLAG_USED   1
#define THREAD_GSCOPE_FLAG_WAIT   2
#define THREAD_GSCOPE_RESET_FLAG()
#define THREAD_GSCOPE_SET_FLAG()
#define THREAD_GSCOPE_WAIT()   GL(dl_wait_lookup_done) ()

Typedefs

typedef union dtv dtv_t

Class Documentation

union dtv

Definition at line 30 of file tls.h.

Class Members
size_t counter
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct dtv pointer
struct tcbhead_t

Definition at line 41 of file tls.h.

Collaboration diagram for tcbhead_t:
Class Members
void * __private
dtv_t * dtv
int gscope_flag
int multiple_threads
uintptr_t pointer_guard
void * private
int private_futex
void * self
uintptr_t stack_guard
uintptr_t sysinfo
void * tcb
unsigned long int vgetcpu_cache
struct dtv.pointer

Definition at line 37 of file tls.h.

Class Members
bool is_static
void * val

Define Documentation

#define DB_THREAD_SELF
Value:
REGISTER (32, 32, 18 * 4, 0) \
                     REGISTER (64, __WORDSIZE, 18 * 8, 0)

Definition at line 149 of file tls.h.

#define GET_DTV (   descr)    (((tcbhead_t *) (descr))->dtv)

Definition at line 114 of file tls.h.

#define INIT_SYSINFO

Definition at line 121 of file tls.h.

#define INSTALL_DTV (   descr,
  dtvp 
)    ((tcbhead_t *) (descr))->dtv = (dtvp) + 1

Definition at line 106 of file tls.h.

#define INSTALL_NEW_DTV (   dtv)    (((tcbhead_t *) __builtin_thread_pointer ())->dtv = (dtv))

Definition at line 110 of file tls.h.

#define STACK_ALIGN   16

Definition at line 76 of file tls.h.

#define THREAD_COPY_POINTER_GUARD (   descr)

Definition at line 179 of file tls.h.

#define THREAD_COPY_STACK_GUARD (   descr)
Value:
((descr)->header.stack_guard                                                \
   = THREAD_GETMEM (THREAD_SELF, header.stack_guard))

Definition at line 170 of file tls.h.

#define THREAD_DTV ( )    (((tcbhead_t *) __builtin_thread_pointer ())->dtv)

Definition at line 142 of file tls.h.

#define THREAD_GET_POINTER_GUARD ( )    THREAD_GETMEM (THREAD_SELF, header.stack_guard)

Definition at line 176 of file tls.h.

#define THREAD_GETMEM (   descr,
  member 
)    descr->member

Definition at line 153 of file tls.h.

#define THREAD_GETMEM_NC (   descr,
  member,
  idx 
)    descr->member[idx]

Definition at line 155 of file tls.h.

#define THREAD_GSCOPE_FLAG_UNUSED   0

Definition at line 182 of file tls.h.

#define THREAD_GSCOPE_FLAG_USED   1

Definition at line 183 of file tls.h.

#define THREAD_GSCOPE_FLAG_WAIT   2

Definition at line 184 of file tls.h.

Value:
do                                                                  \
    { int __res                                                            \
       = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag,            \
                            THREAD_GSCOPE_FLAG_UNUSED);             \
      if (__res == THREAD_GSCOPE_FLAG_WAIT)                                \
       lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE);   \
    }                                                               \
  while (0)

Definition at line 185 of file tls.h.

Value:
do                                                                  \
    {                                                               \
      THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED;           \
      atomic_write_barrier ();                                             \
    }                                                               \
  while (0)

Definition at line 194 of file tls.h.

#define THREAD_GSCOPE_WAIT ( )    GL(dl_wait_lookup_done) ()

Definition at line 201 of file tls.h.

#define THREAD_SELF   ((struct pthread *) __builtin_thread_pointer ())

Definition at line 146 of file tls.h.

Definition at line 178 of file tls.h.

Value:
do                                                                   \
   {                                                                 \
     __asm __volatile ("" : : : "a0", "a1");                                \
     THREAD_SETMEM (THREAD_SELF, header.stack_guard, value);                \
   }                                                                 \
  while (0)

Definition at line 163 of file tls.h.

#define THREAD_SETMEM (   descr,
  member,
  value 
)    descr->member = (value)

Definition at line 157 of file tls.h.

#define THREAD_SETMEM_NC (   descr,
  member,
  idx,
  value 
)    descr->member[idx] = (value)

Definition at line 159 of file tls.h.

#define TLS_INIT_TCB_ALIGN   __alignof__ (struct pthread)

Definition at line 91 of file tls.h.

#define TLS_INIT_TCB_SIZE   sizeof (struct pthread)

Definition at line 88 of file tls.h.

#define TLS_INIT_TP (   thrdescr,
  secondcall 
)
Value:
({ void *_thrdescr = (thrdescr);                                     \
     tcbhead_t *_head = _thrdescr;                                   \
                                                                     \
     _head->tcb = _thrdescr;                                                \
     /* For now the thread descriptor is at the same address.  */           \
     _head->self = _thrdescr;                                               \
     /* New syscall handling support.  */                            \
     INIT_SYSINFO;                                                   \
                                                                     \
    __builtin_set_thread_pointer (_thrdescr);                               \
    NULL;                                                            \
  })

Definition at line 127 of file tls.h.

Definition at line 61 of file tls.h.

#define TLS_TCB_ALIGN   __alignof__ (struct pthread)

Definition at line 97 of file tls.h.

#define TLS_TCB_AT_TP   1

Definition at line 101 of file tls.h.

#define TLS_TCB_SIZE   sizeof (struct pthread)

Definition at line 94 of file tls.h.


Typedef Documentation

typedef union dtv dtv_t