/*
Copyright (c) 1982, 1986, 1993
The Regents of the University of California.  All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
 */
#ifndef __SYS_CONFIG_H__
#define __SYS_CONFIG_H__

#include <machine/ieeefp.h>  /* floating point macros */
#include <sys/features.h>	/* POSIX defs */
#include <float.h>
#include <newlib.h>

#ifdef __aarch64__
#define MALLOC_ALIGNMENT 16
#endif

#ifdef __AMDGCN__
#define __DYNAMIC_REENT__
#endif

/* exceptions first */
#if defined(__H8500__) || defined(__W65__)
#define __SMALL_BITFIELDS
/* ???  This conditional is true for the h8500 and the w65, defining H8300
   in those cases probably isn't the right thing to do.  */
#define H8300 1
#endif

/* 16 bit integer machines */
#if defined(__Z8001__) || defined(__Z8002__) || defined(__H8500__) || defined(__W65__) || defined (__mn10200__) || defined (__AVR__) || defined (__MSP430__)

#undef INT_MAX
#undef UINT_MAX
#define INT_MAX 32767
#define UINT_MAX 65535
#endif

#if defined (__H8300__) || defined (__H8300H__) || defined(__H8300S__) || defined (__H8300SX__)
#define __SMALL_BITFIELDS
#define H8300 1
#undef INT_MAX
#undef UINT_MAX
#define INT_MAX __INT_MAX__
#define UINT_MAX (__INT_MAX__ * 2U + 1)
#endif

#if (defined(__CR16__) || defined(__CR16C__) ||defined(__CR16CP__))
#ifndef __INT32__
#define __SMALL_BITFIELDS      
#undef INT_MAX
#undef UINT_MAX
#define INT_MAX 32767
#define UINT_MAX (__INT_MAX__ * 2U + 1)
#else /* INT32 */
#undef INT_MAX
#undef UINT_MAX
#define INT_MAX 2147483647
#define UINT_MAX (__INT_MAX__ * 2U + 1)
#endif /* INT32 */

#endif /* CR16C */

#if defined (__xc16x__) || defined (__xc16xL__) || defined (__xc16xS__)
#define __SMALL_BITFIELDS
#endif

#ifdef __W65__
#define __SMALL_BITFIELDS
#endif

#if defined(__D10V__)
#define __SMALL_BITFIELDS
#undef INT_MAX
#undef UINT_MAX
#define INT_MAX __INT_MAX__
#define UINT_MAX (__INT_MAX__ * 2U + 1)
#define _POINTER_INT short
#endif

#if defined(__mc68hc11__) || defined(__mc68hc12__) || defined(__mc68hc1x__)
#undef INT_MAX
#undef UINT_MAX
#define INT_MAX __INT_MAX__
#define UINT_MAX (__INT_MAX__ * 2U + 1)
#define _POINTER_INT short
#endif

#ifdef ___AM29K__
#define _FLOAT_RET double
#endif

#ifdef __i386__
#ifndef __unix__
/* in other words, go32 */
#define _FLOAT_RET double
#endif
#if defined(__linux__) || defined(__RDOS__)
/* we want the reentrancy structure to be returned by a function */
#define __DYNAMIC_REENT__
#define HAVE_GETDATE
#ifndef __LARGE64_FILES
#define __LARGE64_FILES 1
#endif
/* we use some glibc header files so turn on glibc large file feature */
#define _LARGEFILE64_SOURCE 1
#endif
#endif

#ifdef __mn10200__
#define __SMALL_BITFIELDS
#endif

#ifdef __AVR__
#define __SMALL_BITFIELDS
#define _POINTER_INT short
#endif

#if defined(__v850) && !defined(__rtems__)
#define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__sda__))
#endif

/* For the PowerPC eabi, force the _impure_ptr to be in .sdata */
#if defined(__PPC__)
#if defined(_CALL_SYSV)
#define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__section__(".sdata")))
#endif
#ifdef __SPE__
#define _LONG_DOUBLE double
#endif
#endif

/* Configure small REENT structure for Xilinx MicroBlaze platforms */
#if defined (__MICROBLAZE__) && !defined(__rtems__)
#ifndef _REENT_SMALL
#define _REENT_SMALL
#endif
/* Xilinx XMK uses Unix98 mutex */
#ifdef __XMK__
#define _UNIX98_THREAD_MUTEX_ATTRIBUTES
#endif
#endif

#if defined(__mips__) && !defined(__rtems__)
#define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__section__(".sdata")))
#endif

#ifdef __xstormy16__
#define __SMALL_BITFIELDS
#undef INT_MAX
#undef UINT_MAX
#define INT_MAX __INT_MAX__
#define UINT_MAX (__INT_MAX__ * 2U + 1)
#define MALLOC_ALIGNMENT 8
#define _POINTER_INT short
#define __BUFSIZ__ 16
#define _REENT_SMALL
#endif

#if defined __MSP430__
#ifndef _REENT_SMALL
#define _REENT_SMALL
#endif

#define __BUFSIZ__ 256
#define __SMALL_BITFIELDS

#ifdef __MSP430X_LARGE__
#define _POINTER_INT __int20
#else
#define _POINTER_INT int
#endif
#endif

#ifdef __m32c__
#define __SMALL_BITFIELDS
#undef INT_MAX
#undef UINT_MAX
#define INT_MAX __INT_MAX__
#define UINT_MAX (__INT_MAX__ * 2U + 1)
#define MALLOC_ALIGNMENT 8
#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
#define _POINTER_INT short
#else
#define _POINTER_INT long
#endif
#define __BUFSIZ__ 16
#define _REENT_SMALL
#endif /* __m32c__ */

#ifdef __SPU__
#define MALLOC_ALIGNMENT 16
#define __CUSTOM_FILE_IO__
#endif

#if defined(__or1k__) || defined(__or1knd__)
#define __DYNAMIC_REENT__
#endif

/* This block should be kept in sync with GCC's limits.h.  The point
   of having these definitions here is to not include limits.h, which
   would pollute the user namespace, while still using types of the
   the correct widths when deciding how to define __int32_t and
   __int64_t.  */
#ifndef __INT_MAX__
# ifdef INT_MAX
#  define __INT_MAX__ INT_MAX
# else
#  define __INT_MAX__ 2147483647
# endif
#endif

#ifndef __LONG_MAX__
# ifdef LONG_MAX
#  define __LONG_MAX__ LONG_MAX
# else
#  if defined (__alpha__) || (defined (__sparc__) && defined(__arch64__)) \
      || defined (__sparcv9)
#   define __LONG_MAX__ 9223372036854775807L
#  else
#   define __LONG_MAX__ 2147483647L
#  endif /* __alpha__ || sparc64 */
# endif
#endif
/* End of block that should be kept in sync with GCC's limits.h.  */

#ifndef _POINTER_INT
#define _POINTER_INT long
#endif

#ifdef __frv__
#define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__section__(".sdata")))
#endif
#undef __RAND_MAX
#if __INT_MAX__ == 32767
#define __RAND_MAX 32767
#else
#define __RAND_MAX 0x7fffffff
#endif

#if defined(__CYGWIN__)
#include <cygwin/config.h>
#endif

#if defined(__rtems__)
#define __FILENAME_MAX__ 255
#define __DYNAMIC_REENT__
#endif

#ifndef __EXPORT
#define __EXPORT
#endif

#ifndef __IMPORT
#define __IMPORT
#endif

#ifndef __WCHAR_MAX__
#if __INT_MAX__ == 32767 || defined (_WIN32)
#define __WCHAR_MAX__ 0xffffu
#endif
#endif

#ifdef PICOLIBC_TLS
#define NEWLIB_THREAD_LOCAL __thread
#else
#define NEWLIB_THREAD_LOCAL
#endif

/* See if small reent asked for at configuration time and
   is not chosen by the platform by default.  */
#ifdef _WANT_REENT_SMALL
#ifndef _REENT_SMALL
#define _REENT_SMALL
#endif
#endif

#ifdef _WANT_USE_LONG_TIME_T
#ifndef _USE_LONG_TIME_T
#define _USE_LONG_TIME_T
#endif
#endif

#ifdef _WANT_USE_GDTOA
#ifndef _USE_GDTOA
#define _USE_GDTOA
#endif
#endif

#ifdef _WANT_REENT_BACKWARD_BINARY_COMPAT
#ifndef _REENT_BACKWARD_BINARY_COMPAT
#define _REENT_BACKWARD_BINARY_COMPAT
#endif
#endif

#define _REENT_THREAD_LOCAL

/* If _MB_EXTENDED_CHARSETS_ALL is set, we want all of the extended
   charsets.  The extended charsets add a few functions and a couple
   of tables of a few K each. */
#ifdef _MB_EXTENDED_CHARSETS_ALL
#define _MB_EXTENDED_CHARSETS_ISO 1
#define _MB_EXTENDED_CHARSETS_WINDOWS 1
#endif

/* Figure out if long double is the same size as double. If the system
 * doesn't provide long double, then those values will be undefined
 * and cpp will substitute 0 for them in the test
 */
#if LDBL_MANT_DIG == DBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \
    LDBL_MAX_EXP == DBL_MAX_EXP
#define _LDBL_EQ_DBL
#endif

/* Newlib doesn't fully support long double math functions so far.
   On platforms where long double equals double the long double functions
   simply call the double functions.  On Cygwin the long double functions
   are implemented independently from newlib to be able to use optimized
   assembler functions despite using the Microsoft x86_64 ABI. */
#if defined (_LDBL_EQ_DBL) || defined (__CYGWIN__) || (defined(__SIZEOF_LONG_DOUBLE__) && __SIZEOF_LONG_DOUBLE__ <= 8) || (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113)
#define _HAVE_LONG_DOUBLE_MATH
#endif

/*
 * When the address sanitizer is enabled, we must prevent the library
 * from even reading beyond the end of input data. This happens in
 * many optimized string functions.
 */
#ifdef __has_feature
#if __has_feature(address_sanitizer)
#define PICOLIBC_NO_OUT_OF_BOUNDS_READS
#endif
#elif defined(__SANITIZE_ADDRESS__)
#define PICOLIBC_NO_OUT_OF_BOUNDS_READS
#endif

#endif /* __SYS_CONFIG_H__ */
