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https://github.com/jart/cosmopolitan.git
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d5312b60f7
This change makes pthread_mutex_lock() as fast as _spinlock() by default. Thread instability issues on NetBSD have been resolved. Improvements made to gdtoa thread code. Crash reporting will now synchronize between threads in a slightly better way.
27 lines
1 KiB
C
27 lines
1 KiB
C
#ifndef COSMOPOLITAN_THIRD_PARTY_GDTOA_LOCK_H_
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#define COSMOPOLITAN_THIRD_PARTY_GDTOA_LOCK_H_
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#include "libc/intrin/nopl.h"
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#include "libc/nexgen32e/threaded.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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int __gdtoa_lock(void);
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int __gdtoa_unlock(void);
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int __gdtoa_lock1(void);
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int __gdtoa_unlock1(void);
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#if defined(__GNUC__) && !defined(__llvm__) && !defined(__STRICT_ANSI__)
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#define __gdtoa_lock() _NOPL0("__threadcalls", __gdtoa_lock)
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#define __gdtoa_unlock() _NOPL0("__threadcalls", __gdtoa_unlock)
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#define __gdtoa_lock1() _NOPL0("__threadcalls", __gdtoa_lock1)
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#define __gdtoa_unlock1() _NOPL0("__threadcalls", __gdtoa_unlock1)
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#else
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#define __gdtoa_lock() (__threaded ? __gdtoa_lock() : 0)
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#define __gdtoa_unlock() (__threaded ? __gdtoa_unlock() : 0)
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#define __gdtoa_lock1() (__threaded ? __gdtoa_lock1() : 0)
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#define __gdtoa_unlock1() (__threaded ? __gdtoa_unlock1() : 0)
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_THIRD_PARTY_GDTOA_LOCK_H_ */
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