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58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
#ifndef COSMOPOLITAN_LIBC_THREAD_TLS_H_
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#define COSMOPOLITAN_LIBC_THREAD_TLS_H_
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#include "libc/thread/thread.h"
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#define TLS_ALIGNMENT 64
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct CosmoFtrace { /* 16 */
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bool ft_once; /* 0 */
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bool ft_noreentry; /* 1 */
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int ft_skew; /* 4 */
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int64_t ft_lastaddr; /* 8 */
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};
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struct CosmoTib {
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struct CosmoTib *tib_self; /* 0x00 */
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struct CosmoFtrace tib_ftrace; /* 0x08 */
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void *tib_garbages; /* 0x18 */
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intptr_t tib_locale; /* 0x20 */
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intptr_t tib_pthread; /* 0x28 */
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struct CosmoTib *tib_self2; /* 0x30 */
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_Atomic(int32_t) tib_tid; /* 0x38 */
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int32_t tib_errno; /* 0x3c */
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void *tib_nsync;
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void *tib_reserved1;
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void *tib_reserved2;
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void *tib_reserved3;
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void *tib_reserved4;
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void *tib_reserved5;
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void *tib_reserved6;
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void *tib_reserved7;
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void *tib_keys[PTHREAD_KEYS_MAX];
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};
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extern int __threaded;
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extern bool __tls_enabled;
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extern unsigned __tls_index;
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void __require_tls(void);
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#if defined(__GNUC__) && defined(__x86_64__) && !defined(__STRICT_ANSI__)
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/**
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* Returns location of thread information block.
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*
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* This can't be used in privileged functions.
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*/
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static inline struct CosmoTib *__get_tls(void) {
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struct CosmoTib *_tib;
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asm("mov\t%%fs:0,%0" : "=r"(_tib) : /* no inputs */ : "memory");
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return _tib;
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}
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#endif /* GNU x86-64 */
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_THREAD_TLS_H_ */
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