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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 <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 READ_THREAD_POINTER()
#define USE_TLS   1
#define TLS_DTV_AT_TP   1
#define TLS_INIT_TCB_SIZE   0
#define TLS_INIT_TCB_ALIGN   __alignof__ (struct pthread)
#define TLS_TCB_SIZE   0
#define TLS_TCB_ALIGN   __alignof__ (struct pthread)
#define TLS_PRE_TCB_SIZE
#define TLS_TCB_OFFSET   0x7000
#define INSTALL_DTV(tcbp, dtvp)   (((tcbhead_t *) (tcbp))[-1].dtv = (dtvp) + 1)
#define INSTALL_NEW_DTV(dtv)   (THREAD_DTV() = (dtv))
#define GET_DTV(tcbp)   (((tcbhead_t *) (tcbp))[-1].dtv)
#define TLS_INIT_TP(tcbp, secondcall)
#define THREAD_DTV()   (((tcbhead_t *) (READ_THREAD_POINTER () - TLS_TCB_OFFSET))[-1].dtv)
#define THREAD_SELF
#define DB_THREAD_SELF   CONST_THREAD_AREA (32, TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE)
#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 NO_TLS_OFFSET   -1
#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 34 of file tls.h.

Class Members
bool is_static
void * val

Define Documentation

#define DB_THREAD_SELF   CONST_THREAD_AREA (32, TLS_TCB_OFFSET + TLS_PRE_TCB_SIZE)

Definition at line 142 of file tls.h.

#define GET_DTV (   tcbp)    (((tcbhead_t *) (tcbp))[-1].dtv)

Definition at line 118 of file tls.h.

#define INSTALL_DTV (   tcbp,
  dtvp 
)    (((tcbhead_t *) (tcbp))[-1].dtv = (dtvp) + 1)

Definition at line 110 of file tls.h.

#define INSTALL_NEW_DTV (   dtv)    (THREAD_DTV() = (dtv))

Definition at line 114 of file tls.h.

#define NO_TLS_OFFSET   -1

Definition at line 157 of file tls.h.

#define READ_THREAD_POINTER ( )
Value:
({ void *__result;                                                   \
       asm volatile (".set\tpush\n\t.set\tmips32r2\n\t"                     \
                   "rdhwr\t%0, $29\n\t.set\tpop" : "=v" (__result));        \
       __result; })

Definition at line 42 of file tls.h.

#define THREAD_DTV ( )    (((tcbhead_t *) (READ_THREAD_POINTER () - TLS_TCB_OFFSET))[-1].dtv)

Definition at line 133 of file tls.h.

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

Definition at line 146 of file tls.h.

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

Definition at line 148 of file tls.h.

#define THREAD_GSCOPE_FLAG_UNUSED   0

Definition at line 160 of file tls.h.

#define THREAD_GSCOPE_FLAG_USED   1

Definition at line 161 of file tls.h.

#define THREAD_GSCOPE_FLAG_WAIT   2

Definition at line 162 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 163 of file tls.h.

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

Definition at line 172 of file tls.h.

#define THREAD_GSCOPE_WAIT ( )    GL(dl_wait_lookup_done) ()

Definition at line 179 of file tls.h.

#define THREAD_SELF
Value:

Definition at line 137 of file tls.h.

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

Definition at line 150 of file tls.h.

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

Definition at line 152 of file tls.h.

#define TLS_DTV_AT_TP   1

Definition at line 73 of file tls.h.

#define TLS_INIT_TCB_ALIGN   __alignof__ (struct pthread)

Definition at line 89 of file tls.h.

#define TLS_INIT_TCB_SIZE   0

Definition at line 86 of file tls.h.

#define TLS_INIT_TP (   tcbp,
  secondcall 
)
Value:
({ INTERNAL_SYSCALL_DECL (err);                                \
     long result_var;                                                 \
     result_var = INTERNAL_SYSCALL (set_thread_area, err, 1,          \
                                (char *) (tcbp) + TLS_TCB_OFFSET);    \
     INTERNAL_SYSCALL_ERROR_P (result_var, err)                       \
       ? "unknown error" : NULL; })

Definition at line 124 of file tls.h.

Value:
(sizeof (struct pthread)                                             \
   + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1)))

Definition at line 99 of file tls.h.

#define TLS_TCB_ALIGN   __alignof__ (struct pthread)

Definition at line 96 of file tls.h.

#define TLS_TCB_OFFSET   0x7000

Definition at line 106 of file tls.h.

#define TLS_TCB_SIZE   0

Definition at line 93 of file tls.h.

#define USE_TLS   1

Definition at line 65 of file tls.h.


Typedef Documentation

typedef union dtv dtv_t