diff options
Diffstat (limited to 'system/include/libc/sys/reent.h')
| -rw-r--r-- | system/include/libc/sys/reent.h | 843 |
1 files changed, 843 insertions, 0 deletions
diff --git a/system/include/libc/sys/reent.h b/system/include/libc/sys/reent.h new file mode 100644 index 00000000..8518964f --- /dev/null +++ b/system/include/libc/sys/reent.h @@ -0,0 +1,843 @@ +/* This header file provides the reentrancy. */ + +/* WARNING: All identifiers here must begin with an underscore. This file is + included by stdio.h and others and we therefore must only use identifiers + in the namespace allotted to us. */ + +#ifndef _SYS_REENT_H_ +#ifdef __cplusplus +extern "C" { +#endif +#define _SYS_REENT_H_ + +#include <_ansi.h> +#include <sys/_types.h> + +#define _NULL 0 + +#ifndef __Long +#if __LONG_MAX__ == 2147483647L +#define __Long long +typedef unsigned __Long __ULong; +#elif __INT_MAX__ == 2147483647 +#define __Long int +typedef unsigned __Long __ULong; +#endif +#endif + +#if !defined( __Long) +#include <sys/types.h> +#endif + +#ifndef __Long +#define __Long __int32_t +typedef __uint32_t __ULong; +#endif + +struct _reent; + +/* + * If _REENT_SMALL is defined, we make struct _reent as small as possible, + * by having nearly everything possible allocated at first use. + */ + +struct _Bigint +{ + struct _Bigint *_next; + int _k, _maxwds, _sign, _wds; + __ULong _x[1]; +}; + +/* needed by reentrant structure */ +struct __tm +{ + int __tm_sec; + int __tm_min; + int __tm_hour; + int __tm_mday; + int __tm_mon; + int __tm_year; + int __tm_wday; + int __tm_yday; + int __tm_isdst; +}; + +/* + * atexit() support. + */ + +#define _ATEXIT_SIZE 32 /* must be at least 32 to guarantee ANSI conformance */ + +struct _on_exit_args { + void * _fnargs[_ATEXIT_SIZE]; /* user fn args */ + void * _dso_handle[_ATEXIT_SIZE]; + /* Bitmask is set if user function takes arguments. */ + __ULong _fntypes; /* type of exit routine - + Must have at least _ATEXIT_SIZE bits */ + /* Bitmask is set if function was registered via __cxa_atexit. */ + __ULong _is_cxa; +}; + +#ifdef _REENT_SMALL +struct _atexit { + struct _atexit *_next; /* next in list */ + int _ind; /* next index in this table */ + void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ + struct _on_exit_args * _on_exit_args_ptr; +}; +#else +struct _atexit { + struct _atexit *_next; /* next in list */ + int _ind; /* next index in this table */ + /* Some entries may already have been called, and will be NULL. */ + void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ + struct _on_exit_args _on_exit_args; +}; +#endif + +/* + * Stdio buffers. + * + * This and __FILE are defined here because we need them for struct _reent, + * but we don't want stdio.h included when stdlib.h is. + */ + +struct __sbuf { + unsigned char *_base; + int _size; +}; + +/* + * Stdio state variables. + * + * The following always hold: + * + * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), + * _lbfsize is -_bf._size, else _lbfsize is 0 + * if _flags&__SRD, _w is 0 + * if _flags&__SWR, _r is 0 + * + * This ensures that the getc and putc macros (or inline functions) never + * try to write or read from a file that is in `read' or `write' mode. + * (Moreover, they can, and do, automatically switch from read mode to + * write mode, and back, on "r+" and "w+" files.) + * + * _lbfsize is used only to make the inline line-buffered output stream + * code as compact as possible. + * + * _ub, _up, and _ur are used when ungetc() pushes back more characters + * than fit in the current _bf, or when ungetc() pushes back a character + * that does not match the previous one in _bf. When this happens, + * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff + * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. + */ + +#ifdef _REENT_SMALL +/* + * struct __sFILE_fake is the start of a struct __sFILE, with only the + * minimal fields allocated. In __sinit() we really allocate the 3 + * standard streams, etc., and point away from this fake. + */ +struct __sFILE_fake { + unsigned char *_p; /* current position in (some) buffer */ + int _r; /* read space left for getc() */ + int _w; /* write space left for putc() */ + short _flags; /* flags, below; this FILE is free if 0 */ + short _file; /* fileno, if Unix descriptor, else -1 */ + struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ + int _lbfsize; /* 0 or -_bf._size, for inline putc */ + + struct _reent *_data; +}; + +/* Following is needed both in libc/stdio and libc/stdlib so we put it + * here instead of libc/stdio/local.h where it was previously. */ + +extern _VOID _EXFUN(__sinit,(struct _reent *)); + +# define _REENT_SMALL_CHECK_INIT(ptr) \ + do \ + { \ + if ((ptr) && !(ptr)->__sdidinit) \ + __sinit (ptr); \ + } \ + while (0) +#else +# define _REENT_SMALL_CHECK_INIT(ptr) /* nothing */ +#endif + +struct __sFILE { + unsigned char *_p; /* current position in (some) buffer */ + int _r; /* read space left for getc() */ + int _w; /* write space left for putc() */ + short _flags; /* flags, below; this FILE is free if 0 */ + short _file; /* fileno, if Unix descriptor, else -1 */ + struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ + int _lbfsize; /* 0 or -_bf._size, for inline putc */ + +#ifdef _REENT_SMALL + struct _reent *_data; +#endif + + /* operations */ + _PTR _cookie; /* cookie passed to io functions */ + + _READ_WRITE_RETURN_TYPE _EXFNPTR(_read, (struct _reent *, _PTR, + char *, int)); + _READ_WRITE_RETURN_TYPE _EXFNPTR(_write, (struct _reent *, _PTR, + const char *, int)); + _fpos_t _EXFNPTR(_seek, (struct _reent *, _PTR, _fpos_t, int)); + int _EXFNPTR(_close, (struct _reent *, _PTR)); + + /* separate buffer for long sequences of ungetc() */ + struct __sbuf _ub; /* ungetc buffer */ + unsigned char *_up; /* saved _p when _p is doing ungetc data */ + int _ur; /* saved _r when _r is counting ungetc data */ + + /* tricks to meet minimum requirements even when malloc() fails */ + unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ + unsigned char _nbuf[1]; /* guarantee a getc() buffer */ + + /* separate buffer for fgetline() when line crosses buffer boundary */ + struct __sbuf _lb; /* buffer for fgetline() */ + + /* Unix stdio files get aligned to block boundaries on fseek() */ + int _blksize; /* stat.st_blksize (may be != _bf._size) */ + int _offset; /* current lseek offset */ + +#ifndef _REENT_SMALL + struct _reent *_data; /* Here for binary compatibility? Remove? */ +#endif + +#ifndef __SINGLE_THREAD__ + _flock_t _lock; /* for thread-safety locking */ +#endif + _mbstate_t _mbstate; /* for wide char stdio functions. */ + int _flags2; /* for future use */ +}; + +#ifdef __CUSTOM_FILE_IO__ + +/* Get custom _FILE definition. */ +#include <sys/custom_file.h> + +#else /* !__CUSTOM_FILE_IO__ */ +#ifdef __LARGE64_FILES +struct __sFILE64 { + unsigned char *_p; /* current position in (some) buffer */ + int _r; /* read space left for getc() */ + int _w; /* write space left for putc() */ + short _flags; /* flags, below; this FILE is free if 0 */ + short _file; /* fileno, if Unix descriptor, else -1 */ + struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ + int _lbfsize; /* 0 or -_bf._size, for inline putc */ + + struct _reent *_data; + + /* operations */ + _PTR _cookie; /* cookie passed to io functions */ + + _READ_WRITE_RETURN_TYPE _EXFNPTR(_read, (struct _reent *, _PTR, + char *, int)); + _READ_WRITE_RETURN_TYPE _EXFNPTR(_write, (struct _reent *, _PTR, + const char *, int)); + _fpos_t _EXFNPTR(_seek, (struct _reent *, _PTR, _fpos_t, int)); + int _EXFNPTR(_close, (struct _reent *, _PTR)); + + /* separate buffer for long sequences of ungetc() */ + struct __sbuf _ub; /* ungetc buffer */ + unsigned char *_up; /* saved _p when _p is doing ungetc data */ + int _ur; /* saved _r when _r is counting ungetc data */ + + /* tricks to meet minimum requirements even when malloc() fails */ + unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ + unsigned char _nbuf[1]; /* guarantee a getc() buffer */ + + /* separate buffer for fgetline() when line crosses buffer boundary */ + struct __sbuf _lb; /* buffer for fgetline() */ + + /* Unix stdio files get aligned to block boundaries on fseek() */ + int _blksize; /* stat.st_blksize (may be != _bf._size) */ + int _flags2; /* for future use */ + + _off64_t _offset; /* current lseek offset */ + _fpos64_t _EXFNPTR(_seek64, (struct _reent *, _PTR, _fpos64_t, int)); + +#ifndef __SINGLE_THREAD__ + _flock_t _lock; /* for thread-safety locking */ +#endif + _mbstate_t _mbstate; /* for wide char stdio functions. */ +}; +typedef struct __sFILE64 __FILE; +#else +typedef struct __sFILE __FILE; +#endif /* __LARGE64_FILES */ +#endif /* !__CUSTOM_FILE_IO__ */ + +struct _glue +{ + struct _glue *_next; + int _niobs; + __FILE *_iobs; +}; + +/* + * rand48 family support + * + * Copyright (c) 1993 Martin Birgmeier + * All rights reserved. + * + * You may redistribute unmodified or modified versions of this source + * code provided that the above copyright notice and this and the + * following conditions are retained. + * + * This software is provided ``as is'', and comes with no warranties + * of any kind. I shall in no event be liable for anything that happens + * to anyone/anything when using this software. + */ +#define _RAND48_SEED_0 (0x330e) +#define _RAND48_SEED_1 (0xabcd) +#define _RAND48_SEED_2 (0x1234) +#define _RAND48_MULT_0 (0xe66d) +#define _RAND48_MULT_1 (0xdeec) +#define _RAND48_MULT_2 (0x0005) +#define _RAND48_ADD (0x000b) +struct _rand48 { + unsigned short _seed[3]; + unsigned short _mult[3]; + unsigned short _add; +#ifdef _REENT_SMALL + /* Put this in here as well, for good luck. */ + __extension__ unsigned long long _rand_next; +#endif +}; + +/* How big the some arrays are. */ +#define _REENT_EMERGENCY_SIZE 25 +#define _REENT_ASCTIME_SIZE 26 +#define _REENT_SIGNAL_SIZE 24 + +/* + * struct _reent + * + * This structure contains *all* globals needed by the library. + * It's raison d'etre is to facilitate threads by making all library routines + * reentrant. IE: All state information is contained here. + */ + +#ifdef _REENT_SMALL + +struct _mprec +{ + /* used by mprec routines */ + struct _Bigint *_result; + int _result_k; + struct _Bigint *_p5s; + struct _Bigint **_freelist; +}; + + +struct _misc_reent +{ + /* miscellaneous reentrant data */ + char *_strtok_last; + _mbstate_t _mblen_state; + _mbstate_t _wctomb_state; + _mbstate_t _mbtowc_state; + char _l64a_buf[8]; + int _getdate_err; + _mbstate_t _mbrlen_state; + _mbstate_t _mbrtowc_state; + _mbstate_t _mbsrtowcs_state; + _mbstate_t _wcrtomb_state; + _mbstate_t _wcsrtombs_state; +}; + +/* This version of _reent is layed our with "int"s in pairs, to help + * ports with 16-bit int's but 32-bit pointers, align nicely. */ +struct _reent +{ + /* As an exception to the above put _errno first for binary + compatibility with non _REENT_SMALL targets. */ + int _errno; /* local copy of errno */ + + /* FILE is a big struct and may change over time. To try to achieve binary + compatibility with future versions, put stdin,stdout,stderr here. + These are pointers into member __sf defined below. */ + __FILE *_stdin, *_stdout, *_stderr; /* XXX */ + + int _inc; /* used by tmpnam */ + + char *_emergency; + + int __sdidinit; /* 1 means stdio has been init'd */ + + int _current_category; /* unused */ + _CONST char *_current_locale; /* unused */ + + struct _mprec *_mp; + + void _EXFNPTR(__cleanup, (struct _reent *)); + + int _gamma_signgam; + + /* used by some fp conversion routines */ + int _cvtlen; /* should be size_t */ + char *_cvtbuf; + + struct _rand48 *_r48; + struct __tm *_localtime_buf; + char *_asctime_buf; + + /* signal info */ + void (**(_sig_func))(int); + + /* atexit stuff */ + struct _atexit *_atexit; + struct _atexit _atexit0; + + struct _glue __sglue; /* root of glue chain */ + __FILE *__sf; /* file descriptors */ + struct _misc_reent *_misc; /* strtok, multibyte states */ + char *_signal_buf; /* strsignal */ +}; + +extern const struct __sFILE_fake __sf_fake_stdin; +extern const struct __sFILE_fake __sf_fake_stdout; +extern const struct __sFILE_fake __sf_fake_stderr; + +# define _REENT_INIT(var) \ + { 0, \ + (__FILE *)&__sf_fake_stdin, \ + (__FILE *)&__sf_fake_stdout, \ + (__FILE *)&__sf_fake_stderr, \ + 0, \ + _NULL, \ + 0, \ + 0, \ + "C", \ + _NULL, \ + _NULL, \ + 0, \ + 0, \ + _NULL, \ + _NULL, \ + _NULL, \ + _NULL, \ + _NULL, \ + _NULL, \ + {_NULL, 0, {_NULL}, _NULL}, \ + {_NULL, 0, _NULL}, \ + _NULL, \ + _NULL, \ + _NULL \ + } + +#define _REENT_INIT_PTR(var) \ + { (var)->_stdin = (__FILE *)&__sf_fake_stdin; \ + (var)->_stdout = (__FILE *)&__sf_fake_stdout; \ + (var)->_stderr = (__FILE *)&__sf_fake_stderr; \ + (var)->_errno = 0; \ + (var)->_inc = 0; \ + (var)->_emergency = _NULL; \ + (var)->__sdidinit = 0; \ + (var)->_current_category = 0; \ + (var)->_current_locale = "C"; \ + (var)->_mp = _NULL; \ + (var)->__cleanup = _NULL; \ + (var)->_gamma_signgam = 0; \ + (var)->_cvtlen = 0; \ + (var)->_cvtbuf = _NULL; \ + (var)->_r48 = _NULL; \ + (var)->_localtime_buf = _NULL; \ + (var)->_asctime_buf = _NULL; \ + (var)->_sig_func = _NULL; \ + (var)->_atexit = _NULL; \ + (var)->_atexit0._next = _NULL; \ + (var)->_atexit0._ind = 0; \ + (var)->_atexit0._fns[0] = _NULL; \ + (var)->_atexit0._on_exit_args_ptr = _NULL; \ + (var)->__sglue._next = _NULL; \ + (var)->__sglue._niobs = 0; \ + (var)->__sglue._iobs = _NULL; \ + (var)->__sf = 0; \ + (var)->_misc = _NULL; \ + (var)->_signal_buf = _NULL; \ + } + +/* Only built the assert() calls if we are built with debugging. */ +#if DEBUG +#include <assert.h> +#define __reent_assert(x) assert(x) +#else +#define __reent_assert(x) ((void)0) +#endif + +#ifdef __CUSTOM_FILE_IO__ +#error Custom FILE I/O and _REENT_SMALL not currently supported. +#endif + +/* Generic _REENT check macro. */ +#define _REENT_CHECK(var, what, type, size, init) do { \ + struct _reent *_r = (var); \ + if (_r->what == NULL) { \ + _r->what = (type)malloc(size); \ + __reent_assert(_r->what); \ + init; \ + } \ +} while (0) + +#define _REENT_CHECK_TM(var) \ + _REENT_CHECK(var, _localtime_buf, struct __tm *, sizeof *((var)->_localtime_buf), \ + /* nothing */) + +#define _REENT_CHECK_ASCTIME_BUF(var) \ + _REENT_CHECK(var, _asctime_buf, char *, _REENT_ASCTIME_SIZE, \ + memset((var)->_asctime_buf, 0, _REENT_ASCTIME_SIZE)) + +/* Handle the dynamically allocated rand48 structure. */ +#define _REENT_INIT_RAND48(var) do { \ + struct _reent *_r = (var); \ + _r->_r48->_seed[0] = _RAND48_SEED_0; \ + _r->_r48->_seed[1] = _RAND48_SEED_1; \ + _r->_r48->_seed[2] = _RAND48_SEED_2; \ + _r->_r48->_mult[0] = _RAND48_MULT_0; \ + _r->_r48->_mult[1] = _RAND48_MULT_1; \ + _r->_r48->_mult[2] = _RAND48_MULT_2; \ + _r->_r48->_add = _RAND48_ADD; \ + _r->_r48->_rand_next = 1; \ +} while (0) +#define _REENT_CHECK_RAND48(var) \ + _REENT_CHECK(var, _r48, struct _rand48 *, sizeof *((var)->_r48), _REENT_INIT_RAND48((var))) + +#define _REENT_INIT_MP(var) do { \ + struct _reent *_r = (var); \ + _r->_mp->_result_k = 0; \ + _r->_mp->_result = _r->_mp->_p5s = _NULL; \ + _r->_mp->_freelist = _NULL; \ +} while (0) +#define _REENT_CHECK_MP(var) \ + _REENT_CHECK(var, _mp, struct _mprec *, sizeof *((var)->_mp), _REENT_INIT_MP(var)) + +#define _REENT_CHECK_EMERGENCY(var) \ + _REENT_CHECK(var, _emergency, char *, _REENT_EMERGENCY_SIZE, /* nothing */) + +#define _REENT_INIT_MISC(var) do { \ + struct _reent *_r = (var); \ + _r->_misc->_strtok_last = _NULL; \ + _r->_misc->_mblen_state.__count = 0; \ + _r->_misc->_mblen_state.__value.__wch = 0; \ + _r->_misc->_wctomb_state.__count = 0; \ + _r->_misc->_wctomb_state.__value.__wch = 0; \ + _r->_misc->_mbtowc_state.__count = 0; \ + _r->_misc->_mbtowc_state.__value.__wch = 0; \ + _r->_misc->_mbrlen_state.__count = 0; \ + _r->_misc->_mbrlen_state.__value.__wch = 0; \ + _r->_misc->_mbrtowc_state.__count = 0; \ + _r->_misc->_mbrtowc_state.__value.__wch = 0; \ + _r->_misc->_mbsrtowcs_state.__count = 0; \ + _r->_misc->_mbsrtowcs_state.__value.__wch = 0; \ + _r->_misc->_wcrtomb_state.__count = 0; \ + _r->_misc->_wcrtomb_state.__value.__wch = 0; \ + _r->_misc->_wcsrtombs_state.__count = 0; \ + _r->_misc->_wcsrtombs_state.__value.__wch = 0; \ + _r->_misc->_l64a_buf[0] = '\0'; \ + _r->_misc->_getdate_err = 0; \ +} while (0) +#define _REENT_CHECK_MISC(var) \ + _REENT_CHECK(var, _misc, struct _misc_reent *, sizeof *((var)->_misc), _REENT_INIT_MISC(var)) + +#define _REENT_CHECK_SIGNAL_BUF(var) \ + _REENT_CHECK(var, _signal_buf, char *, _REENT_SIGNAL_SIZE, /* nothing */) + +#define _REENT_SIGNGAM(ptr) ((ptr)->_gamma_signgam) +#define _REENT_RAND_NEXT(ptr) ((ptr)->_r48->_rand_next) +#define _REENT_RAND48_SEED(ptr) ((ptr)->_r48->_seed) +#define _REENT_RAND48_MULT(ptr) ((ptr)->_r48->_mult) +#define _REENT_RAND48_ADD(ptr) ((ptr)->_r48->_add) +#define _REENT_MP_RESULT(ptr) ((ptr)->_mp->_result) +#define _REENT_MP_RESULT_K(ptr) ((ptr)->_mp->_result_k) +#define _REENT_MP_P5S(ptr) ((ptr)->_mp->_p5s) +#define _REENT_MP_FREELIST(ptr) ((ptr)->_mp->_freelist) +#define _REENT_ASCTIME_BUF(ptr) ((ptr)->_asctime_buf) +#define _REENT_TM(ptr) ((ptr)->_localtime_buf) +#define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) +#define _REENT_STRTOK_LAST(ptr) ((ptr)->_misc->_strtok_last) +#define _REENT_MBLEN_STATE(ptr) ((ptr)->_misc->_mblen_state) +#define _REENT_MBTOWC_STATE(ptr)((ptr)->_misc->_mbtowc_state) +#define _REENT_WCTOMB_STATE(ptr)((ptr)->_misc->_wctomb_state) +#define _REENT_MBRLEN_STATE(ptr) ((ptr)->_misc->_mbrlen_state) +#define _REENT_MBRTOWC_STATE(ptr) ((ptr)->_misc->_mbrtowc_state) +#define _REENT_MBSRTOWCS_STATE(ptr) ((ptr)->_misc->_mbsrtowcs_state) +#define _REENT_WCRTOMB_STATE(ptr) ((ptr)->_misc->_wcrtomb_state) +#define _REENT_WCSRTOMBS_STATE(ptr) ((ptr)->_misc->_wcsrtombs_state) +#define _REENT_L64A_BUF(ptr) ((ptr)->_misc->_l64a_buf) +#define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_misc->_getdate_err)) +#define _REENT_SIGNAL_BUF(ptr) ((ptr)->_signal_buf) + +#else /* !_REENT_SMALL */ + +struct _reent +{ + int _errno; /* local copy of errno */ + + /* FILE is a big struct and may change over time. To try to achieve binary + compatibility with future versions, put stdin,stdout,stderr here. + These are pointers into member __sf defined below. */ + __FILE *_stdin, *_stdout, *_stderr; + + int _inc; /* used by tmpnam */ + char _emergency[_REENT_EMERGENCY_SIZE]; + + int _current_category; /* used by setlocale */ + _CONST char *_current_locale; + + int __sdidinit; /* 1 means stdio has been init'd */ + + void _EXFNPTR(__cleanup, (struct _reent *)); + + /* used by mprec routines */ + struct _Bigint *_result; + int _result_k; + struct _Bigint *_p5s; + struct _Bigint **_freelist; + + /* used by some fp conversion routines */ + int _cvtlen; /* should be size_t */ + char *_cvtbuf; + + union + { + struct + { + unsigned int _unused_rand; + char * _strtok_last; + char _asctime_buf[_REENT_ASCTIME_SIZE]; + struct __tm _localtime_buf; + int _gamma_signgam; + __extension__ unsigned long long _rand_next; + struct _rand48 _r48; + _mbstate_t _mblen_state; + _mbstate_t _mbtowc_state; + _mbstate_t _wctomb_state; + char _l64a_buf[8]; + char _signal_buf[_REENT_SIGNAL_SIZE]; + int _getdate_err; + _mbstate_t _mbrlen_state; + _mbstate_t _mbrtowc_state; + _mbstate_t _mbsrtowcs_state; + _mbstate_t _wcrtomb_state; + _mbstate_t _wcsrtombs_state; + int _h_errno; + } _reent; + /* Two next two fields were once used by malloc. They are no longer + used. They are used to preserve the space used before so as to + allow addition of new reent fields and keep binary compatibility. */ + struct + { +#define _N_LISTS 30 + unsigned char * _nextf[_N_LISTS]; + unsigned int _nmalloc[_N_LISTS]; + } _unused; + } _new; + + /* atexit stuff */ + struct _atexit *_atexit; /* points to head of LIFO stack */ + struct _atexit _atexit0; /* one guaranteed table, required by ANSI */ + + /* signal info */ + void (**(_sig_func))(int); + + /* These are here last so that __FILE can grow without changing the offsets + of the above members (on the off chance that future binary compatibility + would be broken otherwise). */ + struct _glue __sglue; /* root of glue chain */ + __FILE __sf[3]; /* first three file descriptors */ +}; + +#define _REENT_INIT(var) \ + { 0, \ + &(var).__sf[0], \ + &(var).__sf[1], \ + &(var).__sf[2], \ + 0, \ + "", \ + 0, \ + "C", \ + 0, \ + _NULL, \ + _NULL, \ + 0, \ + _NULL, \ + _NULL, \ + 0, \ + _NULL, \ + { \ + { \ + 0, \ + _NULL, \ + "", \ + {0, 0, 0, 0, 0, 0, 0, 0, 0}, \ + 0, \ + 1, \ + { \ + {_RAND48_SEED_0, _RAND48_SEED_1, _RAND48_SEED_2}, \ + {_RAND48_MULT_0, _RAND48_MULT_1, _RAND48_MULT_2}, \ + _RAND48_ADD \ + }, \ + {0, {0}}, \ + {0, {0}}, \ + {0, {0}}, \ + "", \ + "", \ + 0, \ + {0, {0}}, \ + {0, {0}}, \ + {0, {0}}, \ + {0, {0}}, \ + {0, {0}} \ + } \ + }, \ + _NULL, \ + {_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}}, \ + _NULL, \ + {_NULL, 0, _NULL} \ + } + +#define _REENT_INIT_PTR(var) \ + { (var)->_errno = 0; \ + (var)->_stdin = &(var)->__sf[0]; \ + (var)->_stdout = &(var)->__sf[1]; \ + (var)->_stderr = &(var)->__sf[2]; \ + (var)->_inc = 0; \ + memset(&(var)->_emergency, 0, sizeof((var)->_emergency)); \ + (var)->_current_category = 0; \ + (var)->_current_locale = "C"; \ + (var)->__sdidinit = 0; \ + (var)->__cleanup = _NULL; \ + (var)->_result = _NULL; \ + (var)->_result_k = 0; \ + (var)->_p5s = _NULL; \ + (var)->_freelist = _NULL; \ + (var)->_cvtlen = 0; \ + (var)->_cvtbuf = _NULL; \ + (var)->_new._reent._unused_rand = 0; \ + (var)->_new._reent._strtok_last = _NULL; \ + (var)->_new._reent._asctime_buf[0] = 0; \ + memset(&(var)->_new._reent._localtime_buf, 0, sizeof((var)->_new._reent._localtime_buf)); \ + (var)->_new._reent._gamma_signgam = 0; \ + (var)->_new._reent._rand_next = 1; \ + (var)->_new._reent._r48._seed[0] = _RAND48_SEED_0; \ + (var)->_new._reent._r48._seed[1] = _RAND48_SEED_1; \ + (var)->_new._reent._r48._seed[2] = _RAND48_SEED_2; \ + (var)->_new._reent._r48._mult[0] = _RAND48_MULT_0; \ + (var)->_new._reent._r48._mult[1] = _RAND48_MULT_1; \ + (var)->_new._reent._r48._mult[2] = _RAND48_MULT_2; \ + (var)->_new._reent._r48._add = _RAND48_ADD; \ + (var)->_new._reent._mblen_state.__count = 0; \ + (var)->_new._reent._mblen_state.__value.__wch = 0; \ + (var)->_new._reent._mbtowc_state.__count = 0; \ + (var)->_new._reent._mbtowc_state.__value.__wch = 0; \ + (var)->_new._reent._wctomb_state.__count = 0; \ + (var)->_new._reent._wctomb_state.__value.__wch = 0; \ + (var)->_new._reent._mbrlen_state.__count = 0; \ + (var)->_new._reent._mbrlen_state.__value.__wch = 0; \ + (var)->_new._reent._mbrtowc_state.__count = 0; \ + (var)->_new._reent._mbrtowc_state.__value.__wch = 0; \ + (var)->_new._reent._mbsrtowcs_state.__count = 0; \ + (var)->_new._reent._mbsrtowcs_state.__value.__wch = 0; \ + (var)->_new._reent._wcrtomb_state.__count = 0; \ + (var)->_new._reent._wcrtomb_state.__value.__wch = 0; \ + (var)->_new._reent._wcsrtombs_state.__count = 0; \ + (var)->_new._reent._wcsrtombs_state.__value.__wch = 0; \ + (var)->_new._reent._l64a_buf[0] = '\0'; \ + (var)->_new._reent._signal_buf[0] = '\0'; \ + (var)->_new._reent._getdate_err = 0; \ + (var)->_atexit = _NULL; \ + (var)->_atexit0._next = _NULL; \ + (var)->_atexit0._ind = 0; \ + (var)->_atexit0._fns[0] = _NULL; \ + (var)->_atexit0._on_exit_args._fntypes = 0; \ + (var)->_atexit0._on_exit_args._fnargs[0] = _NULL; \ + (var)->_sig_func = _NULL; \ + (var)->__sglue._next = _NULL; \ + (var)->__sglue._niobs = 0; \ + (var)->__sglue._iobs = _NULL; \ + memset(&(var)->__sf, 0, sizeof((var)->__sf)); \ + } + +#define _REENT_CHECK_RAND48(ptr) /* nothing */ +#define _REENT_CHECK_MP(ptr) /* nothing */ +#define _REENT_CHECK_TM(ptr) /* nothing */ +#define _REENT_CHECK_ASCTIME_BUF(ptr) /* nothing */ +#define _REENT_CHECK_EMERGENCY(ptr) /* nothing */ +#define _REENT_CHECK_MISC(ptr) /* nothing */ +#define _REENT_CHECK_SIGNAL_BUF(ptr) /* nothing */ + +#define _REENT_SIGNGAM(ptr) ((ptr)->_new._reent._gamma_signgam) +#define _REENT_RAND_NEXT(ptr) ((ptr)->_new._reent._rand_next) +#define _REENT_RAND48_SEED(ptr) ((ptr)->_new._reent._r48._seed) +#define _REENT_RAND48_MULT(ptr) ((ptr)->_new._reent._r48._mult) +#define _REENT_RAND48_ADD(ptr) ((ptr)->_new._reent._r48._add) +#define _REENT_MP_RESULT(ptr) ((ptr)->_result) +#define _REENT_MP_RESULT_K(ptr) ((ptr)->_result_k) +#define _REENT_MP_P5S(ptr) ((ptr)->_p5s) +#define _REENT_MP_FREELIST(ptr) ((ptr)->_freelist) +#define _REENT_ASCTIME_BUF(ptr) ((ptr)->_new._reent._asctime_buf) +#define _REENT_TM(ptr) (&(ptr)->_new._reent._localtime_buf) +#define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) +#define _REENT_STRTOK_LAST(ptr) ((ptr)->_new._reent._strtok_last) +#define _REENT_MBLEN_STATE(ptr) ((ptr)->_new._reent._mblen_state) +#define _REENT_MBTOWC_STATE(ptr)((ptr)->_new._reent._mbtowc_state) +#define _REENT_WCTOMB_STATE(ptr)((ptr)->_new._reent._wctomb_state) +#define _REENT_MBRLEN_STATE(ptr)((ptr)->_new._reent._mbrlen_state) +#define _REENT_MBRTOWC_STATE(ptr)((ptr)->_new._reent._mbrtowc_state) +#define _REENT_MBSRTOWCS_STATE(ptr)((ptr)->_new._reent._mbsrtowcs_state) +#define _REENT_WCRTOMB_STATE(ptr)((ptr)->_new._reent._wcrtomb_state) +#define _REENT_WCSRTOMBS_STATE(ptr)((ptr)->_new._reent._wcsrtombs_state) +#define _REENT_L64A_BUF(ptr) ((ptr)->_new._reent._l64a_buf) +#define _REENT_SIGNAL_BUF(ptr) ((ptr)->_new._reent._signal_buf) +#define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_new._reent._getdate_err)) + +#endif /* !_REENT_SMALL */ + +/* This value is used in stdlib/misc.c. reent/reent.c has to know it + as well to make sure the freelist is correctly free'd. Therefore + we define it here, rather than in stdlib/misc.c, as before. */ +#define _Kmax (sizeof (size_t) << 3) + +/* + * All references to struct _reent are via this pointer. + * Internally, newlib routines that need to reference it should use _REENT. + */ + +#ifndef __ATTRIBUTE_IMPURE_PTR__ +#define __ATTRIBUTE_IMPURE_PTR__ +#endif + +extern struct _reent *_impure_ptr __ATTRIBUTE_IMPURE_PTR__; +extern struct _reent *_CONST _global_impure_ptr __ATTRIBUTE_IMPURE_PTR__; + +void _reclaim_reent _PARAMS ((struct _reent *)); + +/* #define _REENT_ONLY define this to get only reentrant routines */ + +#ifndef _REENT_ONLY + +#if defined(__DYNAMIC_REENT__) && !defined(__SINGLE_THREAD__) +#ifndef __getreent + struct _reent * _EXFUN(__getreent, (void)); +#endif +# define _REENT (__getreent()) +#else /* __SINGLE_THREAD__ || !__DYNAMIC_REENT__ */ +# define _REENT _impure_ptr +#endif /* __SINGLE_THREAD__ || !__DYNAMIC_REENT__ */ + +#endif /* !_REENT_ONLY */ + +#define _GLOBAL_REENT _global_impure_ptr + +#ifdef __cplusplus +} +#endif +#endif /* _SYS_REENT_H_ */ |