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
diff --git a/include/stdlib/machine/_limits.h b/include/stdlib/machine/_limits.h
new file mode 100644
index 0000000..49a768b
--- /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_ */
diff --git a/include/stdlib/machine/_stdint.h b/include/stdlib/machine/_stdint.h
new file mode 100644
index 0000000..e36c659
--- /dev/null
+++ b/include/stdlib/machine/_stdint.h
@@ -0,0 +1,164 @@
+/*-
+ * Copyright (c) 2001, 2002 Mike Barcroft <mike@FreeBSD.org>
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Klaus Klein.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE__STDINT_H_
+#define _MACHINE__STDINT_H_
+
+#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS)
+
+#define INT8_C(c) (c)
+#define INT16_C(c) (c)
+#define INT32_C(c) (c)
+#define INT64_C(c) (c ## L)
+
+#define UINT8_C(c) (c)
+#define UINT16_C(c) (c)
+#define UINT32_C(c) (c ## U)
+#define UINT64_C(c) (c ## UL)
+
+#define INTMAX_C(c) INT64_C(c)
+#define UINTMAX_C(c) UINT64_C(c)
+
+#endif /* !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) */
+
+#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
+
+/*
+ * ISO/IEC 9899:1999
+ * 7.18.2.1 Limits of exact-width integer types
+ */
+/* Minimum values of exact-width signed integer types. */
+#define INT8_MIN (-0x7f-1)
+#define INT16_MIN (-0x7fff-1)
+#define INT32_MIN (-0x7fffffff-1)
+#define INT64_MIN (-0x7fffffffffffffffL-1)
+
+/* Maximum values of exact-width signed integer types. */
+#define INT8_MAX 0x7f
+#define INT16_MAX 0x7fff
+#define INT32_MAX 0x7fffffff
+#define INT64_MAX 0x7fffffffffffffffL
+
+/* Maximum values of exact-width unsigned integer types. */
+#define UINT8_MAX 0xff
+#define UINT16_MAX 0xffff
+#define UINT32_MAX 0xffffffffU
+#define UINT64_MAX 0xffffffffffffffffUL
+
+/*
+ * ISO/IEC 9899:1999
+ * 7.18.2.2 Limits of minimum-width integer types
+ */
+/* Minimum values of minimum-width signed integer types. */
+#define INT_LEAST8_MIN INT8_MIN
+#define INT_LEAST16_MIN INT16_MIN
+#define INT_LEAST32_MIN INT32_MIN
+#define INT_LEAST64_MIN INT64_MIN
+
+/* Maximum values of minimum-width signed integer types. */
+#define INT_LEAST8_MAX INT8_MAX
+#define INT_LEAST16_MAX INT16_MAX
+#define INT_LEAST32_MAX INT32_MAX
+#define INT_LEAST64_MAX INT64_MAX
+
+/* Maximum values of minimum-width unsigned integer types. */
+#define UINT_LEAST8_MAX UINT8_MAX
+#define UINT_LEAST16_MAX UINT16_MAX
+#define UINT_LEAST32_MAX UINT32_MAX
+#define UINT_LEAST64_MAX UINT64_MAX
+
+/*
+ * ISO/IEC 9899:1999
+ * 7.18.2.3 Limits of fastest minimum-width integer types
+ */
+/* Minimum values of fastest minimum-width signed integer types. */
+#define INT_FAST8_MIN INT32_MIN
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST32_MIN INT32_MIN
+#define INT_FAST64_MIN INT64_MIN
+
+/* Maximum values of fastest minimum-width signed integer types. */
+#define INT_FAST8_MAX INT32_MAX
+#define INT_FAST16_MAX INT32_MAX
+#define INT_FAST32_MAX INT32_MAX
+#define INT_FAST64_MAX INT64_MAX
+
+/* Maximum values of fastest minimum-width unsigned integer types. */
+#define UINT_FAST8_MAX UINT32_MAX
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
+/*
+ * ISO/IEC 9899:1999
+ * 7.18.2.4 Limits of integer types capable of holding object pointers
+ */
+#define INTPTR_MIN INT64_MIN
+#define INTPTR_MAX INT64_MAX
+#define UINTPTR_MAX UINT64_MAX
+
+/*
+ * ISO/IEC 9899:1999
+ * 7.18.2.5 Limits of greatest-width integer types
+ */
+#define INTMAX_MIN INT64_MIN
+#define INTMAX_MAX INT64_MAX
+#define UINTMAX_MAX UINT64_MAX
+
+/*
+ * ISO/IEC 9899:1999
+ * 7.18.3 Limits of other integer types
+ */
+/* Limits of ptrdiff_t. */
+#define PTRDIFF_MIN INT64_MIN
+#define PTRDIFF_MAX INT64_MAX
+
+/* Limits of sig_atomic_t. */
+#define SIG_ATOMIC_MIN INT32_MIN
+#define SIG_ATOMIC_MAX INT32_MAX
+
+/* Limit of size_t. */
+#define SIZE_MAX UINT64_MAX
+
+#ifndef WCHAR_MIN /* Also possibly defined in <wchar.h> */
+/* Limits of wchar_t. */
+#define WCHAR_MIN INT32_MIN
+#define WCHAR_MAX INT32_MAX
+#endif
+
+/* Limits of wint_t. */
+#define WINT_MIN INT32_MIN
+#define WINT_MAX INT32_MAX
+
+#endif /* !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) */
+
+#endif /* !_MACHINE__STDINT_H_ */
diff --git a/include/stdlib/machine/_types.h b/include/stdlib/machine/_types.h
new file mode 100644
index 0000000..7e993c4
--- /dev/null
+++ b/include/stdlib/machine/_types.h
@@ -0,0 +1,110 @@
+/*-
+ * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
+ * Copyright (c) 1990, 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.
+ * 4. 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.
+ *
+ * From: @(#)ansi.h 8.2 (Berkeley) 1/4/94
+ * From: @(#)types.h 8.3 (Berkeley) 1/5/94
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE__TYPES_H_
+#define _MACHINE__TYPES_H_
+
+#ifndef _SYS_CDEFS_H_
+#error this file needs sys/cdefs.h as a prerequisite
+#endif
+
+/*
+ * Basic types upon which most other types are built.
+ */
+typedef __signed char __int8_t;
+typedef unsigned char __uint8_t;
+typedef short __int16_t;
+typedef unsigned short __uint16_t;
+typedef int __int32_t;
+typedef unsigned int __uint32_t;
+typedef long __int64_t;
+typedef unsigned long __uint64_t;
+
+/*
+ * Standard type definitions.
+ */
+typedef __int32_t __clock_t; /* clock()... */
+typedef __int64_t __critical_t;
+typedef double __double_t;
+typedef float __float_t;
+typedef __int64_t __intfptr_t;
+typedef __int64_t __intmax_t;
+typedef __int64_t __intptr_t;
+typedef __int32_t __int_fast8_t;
+typedef __int32_t __int_fast16_t;
+typedef __int32_t __int_fast32_t;
+typedef __int64_t __int_fast64_t;
+typedef __int8_t __int_least8_t;
+typedef __int16_t __int_least16_t;
+typedef __int32_t __int_least32_t;
+typedef __int64_t __int_least64_t;
+typedef __int64_t __ptrdiff_t; /* ptr1 - ptr2 */
+typedef __int64_t __register_t;
+typedef __int64_t __segsz_t; /* segment size (in pages) */
+typedef __uint64_t __size_t; /* sizeof() */
+typedef __int64_t __ssize_t; /* byte count or error */
+typedef __int64_t __time_t; /* time()... */
+typedef __uint64_t __uintfptr_t;
+typedef __uint64_t __uintmax_t;
+typedef __uint64_t __uintptr_t;
+typedef __uint32_t __uint_fast8_t;
+typedef __uint32_t __uint_fast16_t;
+typedef __uint32_t __uint_fast32_t;
+typedef __uint64_t __uint_fast64_t;
+typedef __uint8_t __uint_least8_t;
+typedef __uint16_t __uint_least16_t;
+typedef __uint32_t __uint_least32_t;
+typedef __uint64_t __uint_least64_t;
+typedef __uint64_t __u_register_t;
+typedef __uint64_t __vm_offset_t;
+typedef __int64_t __vm_ooffset_t;
+typedef __uint64_t __vm_paddr_t;
+typedef __uint64_t __vm_pindex_t;
+typedef __uint64_t __vm_size_t;
+
+/*
+ * Unusual type definitions.
+ */
+#ifdef __GNUCLIKE_BUILTIN_VARARGS
+typedef __builtin_va_list __va_list; /* internally known to gcc */
+#else
+typedef char * __va_list;
+#endif /* __GNUCLIKE_BUILTIN_VARARGS */
+#if defined(__GNUCLIKE_BUILTIN_VAALIST) && !defined(__GNUC_VA_LIST) \
+ && !defined(__NO_GNUC_VA_LIST)
+#define __GNUC_VA_LIST
+typedef __va_list __gnuc_va_list; /* compatibility w/GNU headers*/
+#endif
+
+#endif /* !_MACHINE__TYPES_H_ */