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- #ifndef _TLS_H
- #define _TLS_H
- #ifndef __ASSEMBLER__
- # include <stdbool.h>
- # include <stddef.h>
- # include <stdint.h>
- # include <stdlib.h>
- # include <list.h>
- # include <bits/kernel-features.h>
- typedef union dtv
- {
- size_t counter;
- struct
- {
- void *val;
- bool is_static;
- } pointer;
- } dtv_t;
- typedef struct
- {
- void *tcb;
- dtv_t *dtv;
- void *self;
- int multiple_threads;
- #if __WORDSIZE == 64
- int gscope_flag;
- #endif
- uintptr_t sysinfo;
- uintptr_t stack_guard;
- uintptr_t pointer_guard;
- #if __WORDSIZE != 64
- int gscope_flag;
- #endif
- #ifndef __ASSUME_PRIVATE_FUTEX
- int private_futex;
- #endif
- } tcbhead_t;
- #else
- # include <tcb-offsets.h>
- #endif
- #define HAVE_TLS_SUPPORT
- #define HAVE___THREAD 1
- #define HAVE_TLS_MODEL_ATTRIBUTE 1
- #define USE_TLS 1
- #ifndef __ASSEMBLER__
- # include <sysdep.h>
- # include <descr.h>
- register struct pthread *__thread_self __asm__("%g7");
- # 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 *) __thread_self)->dtv = (DTV))
- # define GET_DTV(descr) \
- (((tcbhead_t *) (descr))->dtv)
- # define TLS_INIT_TP(descr, secondcall) \
- (__thread_self = (__typeof (__thread_self)) (descr), NULL)
- # define THREAD_DTV() \
- (((tcbhead_t *) __thread_self)->dtv)
- #define THREAD_SELF __thread_self
- # define DB_THREAD_SELF_INCLUDE <sys/ucontext.h>
- # define DB_THREAD_SELF \
- REGISTER (32, 32, REG_G7 * 4, 0) REGISTER (64, 64, REG_G7 * 8, 0)
- #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) \
- THREAD_SETMEM (THREAD_SELF, header.stack_guard, value)
- # define THREAD_COPY_STACK_GUARD(descr) \
- ((descr)->header.stack_guard \
- = THREAD_GETMEM (THREAD_SELF, header.stack_guard))
- #define THREAD_GET_POINTER_GUARD() \
- THREAD_GETMEM (THREAD_SELF, header.pointer_guard)
- #define THREAD_SET_POINTER_GUARD(value) \
- THREAD_SETMEM (THREAD_SELF, header.pointer_guard, value)
- # define THREAD_COPY_POINTER_GUARD(descr) \
- ((descr)->header.pointer_guard = THREAD_GET_POINTER_GUARD ())
- #define THREAD_GSCOPE_FLAG_UNUSED 0
- #define THREAD_GSCOPE_FLAG_USED 1
- #define THREAD_GSCOPE_FLAG_WAIT 2
- #define THREAD_GSCOPE_RESET_FLAG() \
- 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)
- #define THREAD_GSCOPE_SET_FLAG() \
- do \
- { \
- THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
- atomic_write_barrier (); \
- } \
- while (0)
- #define THREAD_GSCOPE_WAIT() \
- GL(dl_wait_lookup_done) ()
- #endif
- #endif
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