1 /* 2 Copyright (c) 1982, 1986, 1993 3 The Regents of the University of California. All rights reserved. 4 5 Redistribution and use in source and binary forms, with or without 6 modification, are permitted provided that the following conditions 7 are met: 8 1. Redistributions of source code must retain the above copyright 9 notice, this list of conditions and the following disclaimer. 10 2. Redistributions in binary form must reproduce the above copyright 11 notice, this list of conditions and the following disclaimer in the 12 documentation and/or other materials provided with the distribution. 13 3. Neither the name of the University nor the names of its contributors 14 may be used to endorse or promote products derived from this software 15 without specific prior written permission. 16 17 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 SUCH DAMAGE. 28 */ 29 #ifndef __SYS_CONFIG_H__ 30 #define __SYS_CONFIG_H__ 31 32 #include <machine/ieeefp.h> /* floating point macros */ 33 #include <sys/features.h> /* POSIX defs */ 34 #include <float.h> 35 #include <newlib.h> 36 37 #ifdef __aarch64__ 38 #define MALLOC_ALIGNMENT 16 39 #endif 40 41 #ifdef __AMDGCN__ 42 #define __DYNAMIC_REENT__ 43 #endif 44 45 /* exceptions first */ 46 #if defined(__H8500__) || defined(__W65__) 47 #define __SMALL_BITFIELDS 48 /* ??? This conditional is true for the h8500 and the w65, defining H8300 49 in those cases probably isn't the right thing to do. */ 50 #define H8300 1 51 #endif 52 53 /* 16 bit integer machines */ 54 #if defined(__Z8001__) || defined(__Z8002__) || defined(__H8500__) || defined(__W65__) || defined (__mn10200__) || defined (__AVR__) || defined (__MSP430__) 55 56 #undef INT_MAX 57 #undef UINT_MAX 58 #define INT_MAX 32767 59 #define UINT_MAX 65535 60 #endif 61 62 #if defined (__H8300__) || defined (__H8300H__) || defined(__H8300S__) || defined (__H8300SX__) 63 #define __SMALL_BITFIELDS 64 #define H8300 1 65 #undef INT_MAX 66 #undef UINT_MAX 67 #define INT_MAX __INT_MAX__ 68 #define UINT_MAX (__INT_MAX__ * 2U + 1) 69 #endif 70 71 #if (defined(__CR16__) || defined(__CR16C__) ||defined(__CR16CP__)) 72 #ifndef __INT32__ 73 #define __SMALL_BITFIELDS 74 #undef INT_MAX 75 #undef UINT_MAX 76 #define INT_MAX 32767 77 #define UINT_MAX (__INT_MAX__ * 2U + 1) 78 #else /* INT32 */ 79 #undef INT_MAX 80 #undef UINT_MAX 81 #define INT_MAX 2147483647 82 #define UINT_MAX (__INT_MAX__ * 2U + 1) 83 #endif /* INT32 */ 84 85 #endif /* CR16C */ 86 87 #if defined (__xc16x__) || defined (__xc16xL__) || defined (__xc16xS__) 88 #define __SMALL_BITFIELDS 89 #endif 90 91 #ifdef __W65__ 92 #define __SMALL_BITFIELDS 93 #endif 94 95 #if defined(__D10V__) 96 #define __SMALL_BITFIELDS 97 #undef INT_MAX 98 #undef UINT_MAX 99 #define INT_MAX __INT_MAX__ 100 #define UINT_MAX (__INT_MAX__ * 2U + 1) 101 #define _POINTER_INT short 102 #endif 103 104 #if defined(__mc68hc11__) || defined(__mc68hc12__) || defined(__mc68hc1x__) 105 #undef INT_MAX 106 #undef UINT_MAX 107 #define INT_MAX __INT_MAX__ 108 #define UINT_MAX (__INT_MAX__ * 2U + 1) 109 #define _POINTER_INT short 110 #endif 111 112 #ifdef ___AM29K__ 113 #define _FLOAT_RET double 114 #endif 115 116 #ifdef __i386__ 117 #ifndef __unix__ 118 /* in other words, go32 */ 119 #define _FLOAT_RET double 120 #endif 121 #if defined(__linux__) || defined(__RDOS__) 122 /* we want the reentrancy structure to be returned by a function */ 123 #define __DYNAMIC_REENT__ 124 #define HAVE_GETDATE 125 #ifndef __LARGE64_FILES 126 #define __LARGE64_FILES 1 127 #endif 128 /* we use some glibc header files so turn on glibc large file feature */ 129 #define _LARGEFILE64_SOURCE 1 130 #endif 131 #endif 132 133 #ifdef __mn10200__ 134 #define __SMALL_BITFIELDS 135 #endif 136 137 #ifdef __AVR__ 138 #define __SMALL_BITFIELDS 139 #define _POINTER_INT short 140 #endif 141 142 #if defined(__v850) && !defined(__rtems__) 143 #define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__sda__)) 144 #endif 145 146 /* For the PowerPC eabi, force the _impure_ptr to be in .sdata */ 147 #if defined(__PPC__) 148 #if defined(_CALL_SYSV) 149 #define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__section__(".sdata"))) 150 #endif 151 #ifdef __SPE__ 152 #define _LONG_DOUBLE double 153 #endif 154 #endif 155 156 /* Configure small REENT structure for Xilinx MicroBlaze platforms */ 157 #if defined (__MICROBLAZE__) && !defined(__rtems__) 158 #ifndef _REENT_SMALL 159 #define _REENT_SMALL 160 #endif 161 /* Xilinx XMK uses Unix98 mutex */ 162 #ifdef __XMK__ 163 #define _UNIX98_THREAD_MUTEX_ATTRIBUTES 164 #endif 165 #endif 166 167 #if defined(__mips__) && !defined(__rtems__) 168 #define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__section__(".sdata"))) 169 #endif 170 171 #ifdef __xstormy16__ 172 #define __SMALL_BITFIELDS 173 #undef INT_MAX 174 #undef UINT_MAX 175 #define INT_MAX __INT_MAX__ 176 #define UINT_MAX (__INT_MAX__ * 2U + 1) 177 #define MALLOC_ALIGNMENT 8 178 #define _POINTER_INT short 179 #define __BUFSIZ__ 16 180 #define _REENT_SMALL 181 #endif 182 183 #if defined __MSP430__ 184 #ifndef _REENT_SMALL 185 #define _REENT_SMALL 186 #endif 187 188 #define __BUFSIZ__ 256 189 #define __SMALL_BITFIELDS 190 191 #ifdef __MSP430X_LARGE__ 192 #define _POINTER_INT __int20 193 #else 194 #define _POINTER_INT int 195 #endif 196 #endif 197 198 #ifdef __m32c__ 199 #define __SMALL_BITFIELDS 200 #undef INT_MAX 201 #undef UINT_MAX 202 #define INT_MAX __INT_MAX__ 203 #define UINT_MAX (__INT_MAX__ * 2U + 1) 204 #define MALLOC_ALIGNMENT 8 205 #if defined(__r8c_cpu__) || defined(__m16c_cpu__) 206 #define _POINTER_INT short 207 #else 208 #define _POINTER_INT long 209 #endif 210 #define __BUFSIZ__ 16 211 #define _REENT_SMALL 212 #endif /* __m32c__ */ 213 214 #ifdef __SPU__ 215 #define MALLOC_ALIGNMENT 16 216 #define __CUSTOM_FILE_IO__ 217 #endif 218 219 #if defined(__or1k__) || defined(__or1knd__) 220 #define __DYNAMIC_REENT__ 221 #endif 222 223 /* This block should be kept in sync with GCC's limits.h. The point 224 of having these definitions here is to not include limits.h, which 225 would pollute the user namespace, while still using types of the 226 the correct widths when deciding how to define __int32_t and 227 __int64_t. */ 228 #ifndef __INT_MAX__ 229 # ifdef INT_MAX 230 # define __INT_MAX__ INT_MAX 231 # else 232 # define __INT_MAX__ 2147483647 233 # endif 234 #endif 235 236 #ifndef __LONG_MAX__ 237 # ifdef LONG_MAX 238 # define __LONG_MAX__ LONG_MAX 239 # else 240 # if defined (__alpha__) || (defined (__sparc__) && defined(__arch64__)) \ 241 || defined (__sparcv9) 242 # define __LONG_MAX__ 9223372036854775807L 243 # else 244 # define __LONG_MAX__ 2147483647L 245 # endif /* __alpha__ || sparc64 */ 246 # endif 247 #endif 248 /* End of block that should be kept in sync with GCC's limits.h. */ 249 250 #ifndef _POINTER_INT 251 #define _POINTER_INT long 252 #endif 253 254 #ifdef __frv__ 255 #define __ATTRIBUTE_IMPURE_PTR__ __attribute__((__section__(".sdata"))) 256 #endif 257 #undef __RAND_MAX 258 #if __INT_MAX__ == 32767 259 #define __RAND_MAX 32767 260 #else 261 #define __RAND_MAX 0x7fffffff 262 #endif 263 264 #if defined(__CYGWIN__) 265 #include <cygwin/config.h> 266 #endif 267 268 #if defined(__rtems__) 269 #define __FILENAME_MAX__ 255 270 #define __DYNAMIC_REENT__ 271 #endif 272 273 #ifndef __EXPORT 274 #define __EXPORT 275 #endif 276 277 #ifndef __IMPORT 278 #define __IMPORT 279 #endif 280 281 #ifndef __WCHAR_MAX__ 282 #if __INT_MAX__ == 32767 || defined (_WIN32) 283 #define __WCHAR_MAX__ 0xffffu 284 #endif 285 #endif 286 287 #ifdef PICOLIBC_TLS 288 #define NEWLIB_THREAD_LOCAL __thread 289 #else 290 #define NEWLIB_THREAD_LOCAL 291 #endif 292 293 /* See if small reent asked for at configuration time and 294 is not chosen by the platform by default. */ 295 #ifdef _WANT_REENT_SMALL 296 #ifndef _REENT_SMALL 297 #define _REENT_SMALL 298 #endif 299 #endif 300 301 #ifdef _WANT_USE_LONG_TIME_T 302 #ifndef _USE_LONG_TIME_T 303 #define _USE_LONG_TIME_T 304 #endif 305 #endif 306 307 #ifdef _WANT_USE_GDTOA 308 #ifndef _USE_GDTOA 309 #define _USE_GDTOA 310 #endif 311 #endif 312 313 #ifdef _WANT_REENT_BACKWARD_BINARY_COMPAT 314 #ifndef _REENT_BACKWARD_BINARY_COMPAT 315 #define _REENT_BACKWARD_BINARY_COMPAT 316 #endif 317 #endif 318 319 #define _REENT_THREAD_LOCAL 320 321 /* If _MB_EXTENDED_CHARSETS_ALL is set, we want all of the extended 322 charsets. The extended charsets add a few functions and a couple 323 of tables of a few K each. */ 324 #ifdef _MB_EXTENDED_CHARSETS_ALL 325 #define _MB_EXTENDED_CHARSETS_ISO 1 326 #define _MB_EXTENDED_CHARSETS_WINDOWS 1 327 #endif 328 329 /* Figure out if long double is the same size as double. If the system 330 * doesn't provide long double, then those values will be undefined 331 * and cpp will substitute 0 for them in the test 332 */ 333 #if LDBL_MANT_DIG == DBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \ 334 LDBL_MAX_EXP == DBL_MAX_EXP 335 #define _LDBL_EQ_DBL 336 #endif 337 338 /* Newlib doesn't fully support long double math functions so far. 339 On platforms where long double equals double the long double functions 340 simply call the double functions. On Cygwin the long double functions 341 are implemented independently from newlib to be able to use optimized 342 assembler functions despite using the Microsoft x86_64 ABI. */ 343 #if defined (_LDBL_EQ_DBL) || defined (__CYGWIN__) || (defined(__SIZEOF_LONG_DOUBLE__) && __SIZEOF_LONG_DOUBLE__ <= 8) || (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) 344 #define _HAVE_LONG_DOUBLE_MATH 345 #endif 346 347 /* 348 * When the address sanitizer is enabled, we must prevent the library 349 * from even reading beyond the end of input data. This happens in 350 * many optimized string functions. 351 */ 352 #ifdef __has_feature 353 #if __has_feature(address_sanitizer) 354 #define PICOLIBC_NO_OUT_OF_BOUNDS_READS 355 #endif 356 #elif defined(__SANITIZE_ADDRESS__) 357 #define PICOLIBC_NO_OUT_OF_BOUNDS_READS 358 #endif 359 360 #endif /* __SYS_CONFIG_H__ */ 361
