From 0f702c6e7097c369517f891c172a84e2e439e9f7 Mon Sep 17 00:00:00 2001 From: Harry Liebel Date: Tue, 17 Dec 2013 18:19:04 +0000 Subject: Create local C library implementation (2/2) - This change is split into two separate patches in order to simplify the history as interpreted by 'git'. The split is between the move/rename and addition of new files. - Remove dependency on toolchain C library headers and functions in order to ensure behavioural compatibility between toolchains. - Use FreeBSD as reference for C library implementation. - Do not let GCC use default library include paths. - Remove unused definitions in modified headers and implementations. - Move C library files to 'lib/stdlib' and 'include/stdlib'. - Break std.c functions out into separate files. Change-Id: I3e3d8d992052264d2a02489034ae4c03bf0f5512 --- include/stdlib/machine/_limits.h | 85 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 include/stdlib/machine/_limits.h (limited to 'include/stdlib/machine/_limits.h') diff --git a/include/stdlib/machine/_limits.h b/include/stdlib/machine/_limits.h new file mode 100644 index 00000000..49a768b0 --- /dev/null +++ b/include/stdlib/machine/_limits.h @@ -0,0 +1,85 @@ +/*- + * Copyright (c) 1988, 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. + * + * 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. + * + * @(#)limits.h 8.3 (Berkeley) 1/4/94 + * $FreeBSD$ + */ + +#ifndef _MACHINE__LIMITS_H_ +#define _MACHINE__LIMITS_H_ + +/* + * According to ANSI (section 2.2.4.2), the values below must be usable by + * #if preprocessing directives. Additionally, the expression must have the + * same type as would an expression that is an object of the corresponding + * type converted according to the integral promotions. The subtraction for + * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an + * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). + */ + +#define __CHAR_BIT 8 /* number of bits in a char */ + +#define __SCHAR_MAX 0x7f /* max value for a signed char */ +#define __SCHAR_MIN (-0x7f-1) /* min value for a signed char */ + +#define __UCHAR_MAX 0xff /* max value for an unsigned char */ + +#define __USHRT_MAX 0xffff /* max value for an unsigned short */ +#define __SHRT_MAX 0x7fff /* max value for a short */ +#define __SHRT_MIN (-0x7fff-1) /* min value for a short */ + +#define __UINT_MAX 0xffffffff /* max value for an unsigned int */ +#define __INT_MAX 0x7fffffff /* max value for an int */ +#define __INT_MIN (-0x7fffffff-1) /* min value for an int */ + +#define __ULONG_MAX 0xffffffffffffffff /* max for an unsigned long */ +#define __LONG_MAX 0x7fffffffffffffff /* max for a long */ +#define __LONG_MIN (-0x7fffffffffffffff-1) /* min for a long */ + +/* Long longs have the same size but not the same type as longs. */ + /* max for an unsigned long long */ +#define __ULLONG_MAX 0xffffffffffffffffULL +#define __LLONG_MAX 0x7fffffffffffffffLL /* max for a long long */ +#define __LLONG_MIN (-0x7fffffffffffffffLL-1) /* min for a long long */ + +#define __SSIZE_MAX __LONG_MAX /* max value for a ssize_t */ + +#define __SIZE_T_MAX __ULONG_MAX /* max value for a size_t */ + +#define __OFF_MAX __LONG_MAX /* max value for an off_t */ +#define __OFF_MIN __LONG_MIN /* min value for an off_t */ + +/* Quads and longs are the same size. Ensure they stay in sync. */ +#define __UQUAD_MAX (__ULONG_MAX) /* max value for a uquad_t */ +#define __QUAD_MAX (__LONG_MAX) /* max value for a quad_t */ +#define __QUAD_MIN (__LONG_MIN) /* min value for a quad_t */ + +#define __LONG_BIT 64 +#define __WORD_BIT 32 + +/* Minimum signal stack size. */ +#define __MINSIGSTKSZ (1024 * 4) + +#endif /* !_MACHINE__LIMITS_H_ */ -- cgit