102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/* cygwin/config.h header file for Cygwin.
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This wraps Cygwin configuration setting which were in newlib's
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sys/config.h before. This way we can manaage our configuration
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setting without bothering newlib.
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Written by C. Vinschen.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _CYGWIN_CONFIG_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _CYGWIN_CONFIG_H
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#define __DYNAMIC_REENT__
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/* The following provides an inline version of __getreent() for newlib,
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which will be used throughout the library whereever there is a _r
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version of a function that takes _REENT. This saves the overhead
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of a function call for what amounts to a simple computation.
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The definition below is essentially equivalent to the one in cygtls.h
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(&_my_tls.local_clib) however it uses a fixed precomputed
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offset rather than dereferencing a field of a structure.
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Including tlsoffets.h here in order to get this constant offset
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tls_local_clib is a bit of a hack, but the alternative would require
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dragging the entire definition of struct _cygtls (a large and complex
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Cygwin internal data structure) into newlib. The machinery to
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compute these offsets already exists for the sake of gendef so
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we might as well just use it here. */
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#if defined (_COMPILING_NEWLIB) || defined (__INSIDE_CYGWIN__)
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#ifdef __x86_64__
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#include "../tlsoffsets64.h"
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#else
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#include "../tlsoffsets.h"
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#endif
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__attribute__((__gnu_inline__))
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extern inline struct _reent *__getreent (void)
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{
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register char *ret;
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#ifdef __x86_64__
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__asm __volatile__ ("movq %%gs:8,%0" : "=r" (ret));
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#else
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__asm __volatile__ ("movl %%fs:4,%0" : "=r" (ret));
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#endif
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return (struct _reent *) (ret + tls_local_clib);
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}
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#endif /* _COMPILING_NEWLIB || __INSIDE_CYGWIN__ */
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#ifdef __x86_64__
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# define __SYMBOL_PREFIX
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#else
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# define __SYMBOL_PREFIX "_"
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#endif
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#define _SYMSTR(x) __SYMBOL_PREFIX #x
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#define __FILENAME_MAX__ 4096 /* Keep in sync with PATH_MAX in limits.h. */
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/* The following block of macros is required to build newlib correctly for
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Cygwin. Changing them in applications has no or not the desired effect.
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Just leave them alone. */
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#define _READ_WRITE_RETURN_TYPE _ssize_t
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#define _READ_WRITE_BUFSIZE_TYPE size_t
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#define __LARGE64_FILES 1
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#define __USE_INTERNAL_STAT64 1
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#define __LINUX_ERRNO_EXTENSIONS__ 1
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#define _MB_EXTENDED_CHARSETS_ALL 1
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#define __HAVE_LOCALE_INFO__ 1
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#define __HAVE_LOCALE_INFO_EXTENDED__ 1
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#define _WANT_C99_TIME_FORMATS 1
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#define _GLIBC_EXTENSION 1
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#define _STDIO_BSD_SEMANTICS 1
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#define __TM_GMTOFF tm_gmtoff
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#define __TM_ZONE tm_zone
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#define _USE_LONG_TIME_T 1
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#if defined(__INSIDE_CYGWIN__) || defined(_COMPILING_NEWLIB)
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#define __EXPORT __declspec(dllexport)
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#define __IMPORT
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#else
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#define __EXPORT
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#define __IMPORT __declspec(dllimport)
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#endif
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#ifndef __WCHAR_MAX__
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#define __WCHAR_MAX__ 0xffffu
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#endif
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#define DEFAULT_LOCALE "C.UTF-8"
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#ifdef __cplusplus
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}
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#endif
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#endif /* _CYGWIN_CONFIG_H */
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