summaryrefslogtreecommitdiffstats
path: root/include/lib/libc
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--include/lib/libc/aarch32/endian_.h146
-rw-r--r--include/lib/libc/aarch32/float.h100
-rw-r--r--include/lib/libc/aarch32/inttypes_.h28
-rw-r--r--include/lib/libc/aarch32/limits_.h26
-rw-r--r--include/lib/libc/aarch32/stddef_.h15
-rw-r--r--include/lib/libc/aarch32/stdint_.h28
-rw-r--r--include/lib/libc/aarch32/stdio_.h15
-rw-r--r--include/lib/libc/aarch64/endian_.h128
-rw-r--r--include/lib/libc/aarch64/float.h94
-rw-r--r--include/lib/libc/aarch64/inttypes_.h28
-rw-r--r--include/lib/libc/aarch64/limits_.h26
-rw-r--r--include/lib/libc/aarch64/setjmp_.h30
-rw-r--r--include/lib/libc/aarch64/stddef_.h15
-rw-r--r--include/lib/libc/aarch64/stdint_.h31
-rw-r--r--include/lib/libc/aarch64/stdio_.h15
-rw-r--r--include/lib/libc/arm_acle.h24
-rw-r--r--include/lib/libc/assert.h34
-rw-r--r--include/lib/libc/cdefs.h38
-rw-r--r--include/lib/libc/endian.h191
-rw-r--r--include/lib/libc/errno.h169
-rw-r--r--include/lib/libc/inttypes.h41
-rw-r--r--include/lib/libc/limits.h19
-rw-r--r--include/lib/libc/setjmp.h20
-rw-r--r--include/lib/libc/stdarg.h20
-rw-r--r--include/lib/libc/stdbool.h17
-rw-r--r--include/lib/libc/stddef.h27
-rw-r--r--include/lib/libc/stdint.h122
-rw-r--r--include/lib/libc/stdio.h31
-rw-r--r--include/lib/libc/stdlib.h32
-rw-r--r--include/lib/libc/string.h32
-rw-r--r--include/lib/libc/sys/cdefs.h922
-rw-r--r--include/lib/libc/time.h18
32 files changed, 2482 insertions, 0 deletions
diff --git a/include/lib/libc/aarch32/endian_.h b/include/lib/libc/aarch32/endian_.h
new file mode 100644
index 0000000..0cf2c75
--- /dev/null
+++ b/include/lib/libc/aarch32/endian_.h
@@ -0,0 +1,146 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2001 David E. O'Brien
+ *
+ * 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.
+ *
+ * @(#)endian.h 8.1 (Berkeley) 6/10/93
+ * $NetBSD: endian.h,v 1.7 1999/08/21 05:53:51 simonb Exp $
+ * $FreeBSD$
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef ENDIAN__H
+#define ENDIAN__H
+
+#include <stdint.h>
+
+/*
+ * Definitions for byte order, according to byte significance from low
+ * address to high.
+ */
+#define _LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
+#define _BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
+#define _PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
+
+#ifdef __ARMEB__
+#define _BYTE_ORDER _BIG_ENDIAN
+#else
+#define _BYTE_ORDER _LITTLE_ENDIAN
+#endif /* __ARMEB__ */
+
+#if __BSD_VISIBLE
+#define LITTLE_ENDIAN _LITTLE_ENDIAN
+#define BIG_ENDIAN _BIG_ENDIAN
+#define PDP_ENDIAN _PDP_ENDIAN
+#define BYTE_ORDER _BYTE_ORDER
+#endif
+
+#ifdef __ARMEB__
+#define _QUAD_HIGHWORD 0
+#define _QUAD_LOWWORD 1
+#define __ntohl(x) ((uint32_t)(x))
+#define __ntohs(x) ((uint16_t)(x))
+#define __htonl(x) ((uint32_t)(x))
+#define __htons(x) ((uint16_t)(x))
+#else
+#define _QUAD_HIGHWORD 1
+#define _QUAD_LOWWORD 0
+#define __ntohl(x) (__bswap32(x))
+#define __ntohs(x) (__bswap16(x))
+#define __htonl(x) (__bswap32(x))
+#define __htons(x) (__bswap16(x))
+#endif /* __ARMEB__ */
+
+static __inline uint64_t
+__bswap64(uint64_t _x)
+{
+
+ return ((_x >> 56) | ((_x >> 40) & 0xff00) | ((_x >> 24) & 0xff0000) |
+ ((_x >> 8) & 0xff000000) | ((_x << 8) & ((uint64_t)0xff << 32)) |
+ ((_x << 24) & ((uint64_t)0xff << 40)) |
+ ((_x << 40) & ((uint64_t)0xff << 48)) | ((_x << 56)));
+}
+
+static __inline uint32_t
+__bswap32_var(uint32_t v)
+{
+ uint32_t t1;
+
+ __asm __volatile("eor %1, %0, %0, ror #16\n"
+ "bic %1, %1, #0x00ff0000\n"
+ "mov %0, %0, ror #8\n"
+ "eor %0, %0, %1, lsr #8\n"
+ : "+r" (v), "=r" (t1));
+
+ return (v);
+}
+
+static __inline uint16_t
+__bswap16_var(uint16_t v)
+{
+ uint32_t ret = v & 0xffff;
+
+ __asm __volatile(
+ "mov %0, %0, ror #8\n"
+ "orr %0, %0, %0, lsr #16\n"
+ "bic %0, %0, %0, lsl #16"
+ : "+r" (ret));
+
+ return ((uint16_t)ret);
+}
+
+#ifdef __OPTIMIZE__
+
+#define __bswap32_constant(x) \
+ ((((x) & 0xff000000U) >> 24) | \
+ (((x) & 0x00ff0000U) >> 8) | \
+ (((x) & 0x0000ff00U) << 8) | \
+ (((x) & 0x000000ffU) << 24))
+
+#define __bswap16_constant(x) \
+ ((((x) & 0xff00) >> 8) | \
+ (((x) & 0x00ff) << 8))
+
+#define __bswap16(x) \
+ ((uint16_t)(__builtin_constant_p(x) ? \
+ __bswap16_constant(x) : \
+ __bswap16_var(x)))
+
+#define __bswap32(x) \
+ ((uint32_t)(__builtin_constant_p(x) ? \
+ __bswap32_constant(x) : \
+ __bswap32_var(x)))
+
+#else
+#define __bswap16(x) __bswap16_var(x)
+#define __bswap32(x) __bswap32_var(x)
+
+#endif /* __OPTIMIZE__ */
+#endif /* ENDIAN__H */
diff --git a/include/lib/libc/aarch32/float.h b/include/lib/libc/aarch32/float.h
new file mode 100644
index 0000000..857d76e
--- /dev/null
+++ b/include/lib/libc/aarch32/float.h
@@ -0,0 +1,100 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1989 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.
+ *
+ * from: @(#)float.h 7.1 (Berkeley) 5/8/90
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_FLOAT_H_
+#define _MACHINE_FLOAT_H_ 1
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+extern int __flt_rounds(void);
+__END_DECLS
+
+#define FLT_RADIX 2 /* b */
+#ifndef _ARM_HARD_FLOAT
+#define FLT_ROUNDS __flt_rounds()
+#else
+#define FLT_ROUNDS (-1)
+#endif
+#if __ISO_C_VISIBLE >= 1999
+#define FLT_EVAL_METHOD 0
+#define DECIMAL_DIG 17 /* max precision in decimal digits */
+#endif
+
+#define FLT_MANT_DIG 24 /* p */
+#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */
+#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
+#define FLT_MIN_EXP (-125) /* emin */
+#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */
+#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */
+#define FLT_MAX_EXP 128 /* emax */
+#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */
+#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */
+#if __ISO_C_VISIBLE >= 2011
+#define FLT_TRUE_MIN 1.40129846E-45F /* b**(emin-p) */
+#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */
+#define FLT_HAS_SUBNORM 1
+#endif /* __ISO_C_VISIBLE >= 2011 */
+
+#define DBL_MANT_DIG 53
+#define DBL_EPSILON 2.2204460492503131E-16
+#define DBL_DIG 15
+#define DBL_MIN_EXP (-1021)
+#define DBL_MIN 2.2250738585072014E-308
+#define DBL_MIN_10_EXP (-307)
+#define DBL_MAX_EXP 1024
+#define DBL_MAX 1.7976931348623157E+308
+#define DBL_MAX_10_EXP 308
+#if __ISO_C_VISIBLE >= 2011
+#define DBL_TRUE_MIN 4.9406564584124654E-324
+#define DBL_DECIMAL_DIG 17
+#define DBL_HAS_SUBNORM 1
+#endif /* __ISO_C_VISIBLE >= 2011 */
+
+#define LDBL_MANT_DIG DBL_MANT_DIG
+#define LDBL_EPSILON ((long double)DBL_EPSILON)
+#define LDBL_DIG DBL_DIG
+#define LDBL_MIN_EXP DBL_MIN_EXP
+#define LDBL_MIN ((long double)DBL_MIN)
+#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
+#define LDBL_MAX_EXP DBL_MAX_EXP
+#define LDBL_MAX ((long double)DBL_MAX)
+#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
+#if __ISO_C_VISIBLE >= 2011
+#define LDBL_TRUE_MIN ((long double)DBL_TRUE_MIN)
+#define LDBL_DECIMAL_DIG DBL_DECIMAL_DIG
+#define LDBL_HAS_SUBNORM DBL_HAS_SUBNORM
+#endif /* __ISO_C_VISIBLE >= 2011 */
+
+#endif /* _MACHINE_FLOAT_H_ */
diff --git a/include/lib/libc/aarch32/inttypes_.h b/include/lib/libc/aarch32/inttypes_.h
new file mode 100644
index 0000000..ef3fb8f
--- /dev/null
+++ b/include/lib/libc/aarch32/inttypes_.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2020 Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2020, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef INTTYPES__H
+#define INTTYPES__H
+
+#define PRId64 "lld" /* int64_t */
+#define PRIi64 "lli" /* int64_t */
+#define PRIo64 "llo" /* int64_t */
+#define PRIu64 "llu" /* uint64_t */
+#define PRIx64 "llx" /* uint64_t */
+#define PRIX64 "llX" /* uint64_t */
+
+#define PRIdPTR "d" /* intptr_t */
+#define PRIiPTR "i" /* intptr_t */
+#define PRIoPTR "o" /* intptr_t */
+#define PRIuPTR "u" /* uintptr_t */
+#define PRIxPTR "x" /* uintptr_t */
+#define PRIXPTR "X" /* uintptr_t */
+
+#endif /* INTTYPES__H */
diff --git a/include/lib/libc/aarch32/limits_.h b/include/lib/libc/aarch32/limits_.h
new file mode 100644
index 0000000..26cec17
--- /dev/null
+++ b/include/lib/libc/aarch32/limits_.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#define SCHAR_MAX 0x7F
+#define SCHAR_MIN (-SCHAR_MIN - 1)
+#define CHAR_MAX 0x7F
+#define CHAR_MIN (-CHAR_MAX - 1)
+#define UCHAR_MAX 0xFFU
+#define SHRT_MAX 0x7FFF
+#define SHRT_MIN (-SHRT_MAX - 1)
+#define USHRT_MAX 0xFFFFU
+#define INT_MAX 0x7FFFFFFF
+#define INT_MIN (-INT_MAX - 1)
+#define UINT_MAX 0xFFFFFFFFU
+#define LONG_MAX 0x7FFFFFFFL
+#define LONG_MIN (-LONG_MAX - 1L)
+#define ULONG_MAX 0xFFFFFFFFUL
+#define LLONG_MAX 0x7FFFFFFFFFFFFFFFLL
+#define LLONG_MIN (-LLONG_MAX - 1LL)
+#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
+
+#define __LONG_BIT 32
+#define __WORD_BIT 32
diff --git a/include/lib/libc/aarch32/stddef_.h b/include/lib/libc/aarch32/stddef_.h
new file mode 100644
index 0000000..36dc20b
--- /dev/null
+++ b/include/lib/libc/aarch32/stddef_.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDDEF__H
+#define STDDEF__H
+
+#ifndef SIZET_
+typedef unsigned int size_t;
+#define SIZET_
+#endif
+
+#endif /* STDDEF__H */
diff --git a/include/lib/libc/aarch32/stdint_.h b/include/lib/libc/aarch32/stdint_.h
new file mode 100644
index 0000000..dafe142
--- /dev/null
+++ b/include/lib/libc/aarch32/stdint_.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2020 Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2020, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDINT__H
+#define STDINT__H
+
+#define INT64_MAX LLONG_MAX
+#define INT64_MIN LLONG_MIN
+#define UINT64_MAX ULLONG_MAX
+
+#define INT64_C(x) x ## LL
+#define UINT64_C(x) x ## ULL
+
+typedef long long int64_t;
+typedef unsigned long long uint64_t;
+typedef long long int64_least_t;
+typedef unsigned long long uint64_least_t;
+typedef long long int64_fast_t;
+typedef unsigned long long uint64_fast_t;
+
+#endif
diff --git a/include/lib/libc/aarch32/stdio_.h b/include/lib/libc/aarch32/stdio_.h
new file mode 100644
index 0000000..5e49425
--- /dev/null
+++ b/include/lib/libc/aarch32/stdio_.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDIO__H
+#define STDIO__H
+
+#ifndef SSIZET_
+typedef int ssize_t;
+#define SSIZET_
+#endif
+
+#endif /* STDIO__H */
diff --git a/include/lib/libc/aarch64/endian_.h b/include/lib/libc/aarch64/endian_.h
new file mode 100644
index 0000000..7c79fd4
--- /dev/null
+++ b/include/lib/libc/aarch64/endian_.h
@@ -0,0 +1,128 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2001 David E. O'Brien
+ *
+ * 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.
+ *
+ * @(#)endian.h 8.1 (Berkeley) 6/10/93
+ * $NetBSD: endian.h,v 1.7 1999/08/21 05:53:51 simonb Exp $
+ * $FreeBSD$
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef ENDIAN__H
+#define ENDIAN__H
+
+#include <stdint.h>
+
+/*
+ * Definitions for byte order, according to byte significance from low
+ * address to high.
+ */
+#define _LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
+#define _BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
+#define _PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
+
+#define _BYTE_ORDER _LITTLE_ENDIAN
+
+#if __BSD_VISIBLE
+#define LITTLE_ENDIAN _LITTLE_ENDIAN
+#define BIG_ENDIAN _BIG_ENDIAN
+#define PDP_ENDIAN _PDP_ENDIAN
+#define BYTE_ORDER _BYTE_ORDER
+#endif
+
+#define _QUAD_HIGHWORD 1
+#define _QUAD_LOWWORD 0
+#define __ntohl(x) (__bswap32(x))
+#define __ntohs(x) (__bswap16(x))
+#define __htonl(x) (__bswap32(x))
+#define __htons(x) (__bswap16(x))
+
+static __inline uint64_t
+__bswap64(uint64_t x)
+{
+ uint64_t ret;
+
+ __asm __volatile("rev %0, %1\n"
+ : "=&r" (ret), "+r" (x));
+
+ return (ret);
+}
+
+static __inline uint32_t
+__bswap32_var(uint32_t v)
+{
+ uint32_t ret;
+
+ __asm __volatile("rev32 %x0, %x1\n"
+ : "=&r" (ret), "+r" (v));
+
+ return (ret);
+}
+
+static __inline uint16_t
+__bswap16_var(uint16_t v)
+{
+ uint32_t ret;
+
+ __asm __volatile("rev16 %w0, %w1\n"
+ : "=&r" (ret), "+r" (v));
+
+ return ((uint16_t)ret);
+}
+
+#ifdef __OPTIMIZE__
+
+#define __bswap32_constant(x) \
+ ((((x) & 0xff000000U) >> 24) | \
+ (((x) & 0x00ff0000U) >> 8) | \
+ (((x) & 0x0000ff00U) << 8) | \
+ (((x) & 0x000000ffU) << 24))
+
+#define __bswap16_constant(x) \
+ ((((x) & 0xff00) >> 8) | \
+ (((x) & 0x00ff) << 8))
+
+#define __bswap16(x) \
+ ((uint16_t)(__builtin_constant_p(x) ? \
+ __bswap16_constant((uint16_t)(x)) : \
+ __bswap16_var(x)))
+
+#define __bswap32(x) \
+ ((uint32_t)(__builtin_constant_p(x) ? \
+ __bswap32_constant((uint32_t)(x)) : \
+ __bswap32_var(x)))
+
+#else
+#define __bswap16(x) __bswap16_var(x)
+#define __bswap32(x) __bswap32_var(x)
+
+#endif /* __OPTIMIZE__ */
+#endif /* ENDIAN__H */
diff --git a/include/lib/libc/aarch64/float.h b/include/lib/libc/aarch64/float.h
new file mode 100644
index 0000000..0829f6f
--- /dev/null
+++ b/include/lib/libc/aarch64/float.h
@@ -0,0 +1,94 @@
+/*-
+ * Copyright (c) 1989 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.
+ *
+ * from: @(#)float.h 7.1 (Berkeley) 5/8/90
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_FLOAT_H_
+#define _MACHINE_FLOAT_H_
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+extern int __flt_rounds(void);
+__END_DECLS
+
+#define FLT_RADIX 2 /* b */
+#define FLT_ROUNDS __flt_rounds()
+#if __ISO_C_VISIBLE >= 1999
+#define FLT_EVAL_METHOD 0
+#define DECIMAL_DIG 17 /* max precision in decimal digits */
+#endif
+
+#define FLT_MANT_DIG 24 /* p */
+#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */
+#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
+#define FLT_MIN_EXP (-125) /* emin */
+#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */
+#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */
+#define FLT_MAX_EXP 128 /* emax */
+#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */
+#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */
+#if __ISO_C_VISIBLE >= 2011
+#define FLT_TRUE_MIN 1.40129846E-45F /* b**(emin-p) */
+#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */
+#define FLT_HAS_SUBNORM 1
+#endif /* __ISO_C_VISIBLE >= 2011 */
+
+#define DBL_MANT_DIG 53
+#define DBL_EPSILON 2.2204460492503131E-16
+#define DBL_DIG 15
+#define DBL_MIN_EXP (-1021)
+#define DBL_MIN 2.2250738585072014E-308
+#define DBL_MIN_10_EXP (-307)
+#define DBL_MAX_EXP 1024
+#define DBL_MAX 1.7976931348623157E+308
+#define DBL_MAX_10_EXP 308
+#if __ISO_C_VISIBLE >= 2011
+#define DBL_TRUE_MIN 4.9406564584124654E-324
+#define DBL_DECIMAL_DIG 17
+#define DBL_HAS_SUBNORM 1
+#endif /* __ISO_C_VISIBLE >= 2011 */
+
+#define LDBL_MANT_DIG 113
+#define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L
+#define LDBL_DIG 33
+#define LDBL_MIN_EXP (-16381)
+#define LDBL_MIN 3.362103143112093506262677817321752603E-4932L
+#define LDBL_MIN_10_EXP (-4931)
+#define LDBL_MAX_EXP (+16384)
+#define LDBL_MAX 1.189731495357231765085759326628007016E+4932L
+#define LDBL_MAX_10_EXP (+4932)
+#if __ISO_C_VISIBLE >= 2011
+#define LDBL_TRUE_MIN 6.475175119438025110924438958227646552E-4966L
+#define LDBL_DECIMAL_DIG 36
+#define LDBL_HAS_SUBNORM 1
+#endif /* __ISO_C_VISIBLE >= 2011 */
+
+#endif /* _MACHINE_FLOAT_H_ */
diff --git a/include/lib/libc/aarch64/inttypes_.h b/include/lib/libc/aarch64/inttypes_.h
new file mode 100644
index 0000000..f25882f
--- /dev/null
+++ b/include/lib/libc/aarch64/inttypes_.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2020 Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2020, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef INTTYPES__H
+#define INTTYPES__H
+
+#define PRId64 "ld" /* int64_t */
+#define PRIi64 "li" /* int64_t */
+#define PRIo64 "lo" /* int64_t */
+#define PRIu64 "lu" /* uint64_t */
+#define PRIx64 "lx" /* uint64_t */
+#define PRIX64 "lX" /* uint64_t */
+
+#define PRIdPTR "ld" /* intptr_t */
+#define PRIiPTR "li" /* intptr_t */
+#define PRIoPTR "lo" /* intptr_t */
+#define PRIuPTR "lu" /* uintptr_t */
+#define PRIxPTR "lx" /* uintptr_t */
+#define PRIXPTR "lX" /* uintptr_t */
+
+#endif /* INTTYPES__H */
diff --git a/include/lib/libc/aarch64/limits_.h b/include/lib/libc/aarch64/limits_.h
new file mode 100644
index 0000000..e36cfe7
--- /dev/null
+++ b/include/lib/libc/aarch64/limits_.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#define SCHAR_MAX 0x7F
+#define SCHAR_MIN (-SCHAR_MIN - 1)
+#define CHAR_MAX 0x7F
+#define CHAR_MIN (-CHAR_MAX - 1)
+#define UCHAR_MAX 0xFFU
+#define SHRT_MAX 0x7FFF
+#define SHRT_MIN (-SHRT_MAX - 1)
+#define USHRT_MAX 0xFFFFU
+#define INT_MAX 0x7FFFFFFF
+#define INT_MIN (-INT_MAX - 1)
+#define UINT_MAX 0xFFFFFFFFU
+#define LONG_MAX 0x7FFFFFFFFFFFFFFFL
+#define LONG_MIN (-LONG_MAX - 1L)
+#define ULONG_MAX 0xFFFFFFFFFFFFFFFFUL
+#define LLONG_MAX 0x7FFFFFFFFFFFFFFFLL
+#define LLONG_MIN (-LLONG_MAX - 1LL)
+#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
+
+#define __LONG_BIT 64
+#define __WORD_BIT 32
diff --git a/include/lib/libc/aarch64/setjmp_.h b/include/lib/libc/aarch64/setjmp_.h
new file mode 100644
index 0000000..f880a17
--- /dev/null
+++ b/include/lib/libc/aarch64/setjmp_.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SETJMP__H
+#define SETJMP__H
+
+#define JMP_CTX_X19 0x0
+#define JMP_CTX_X21 0x10
+#define JMP_CTX_X23 0x20
+#define JMP_CTX_X25 0x30
+#define JMP_CTX_X27 0x40
+#define JMP_CTX_X29 0x50
+#define JMP_CTX_SP 0x60
+#define JMP_CTX_END 0x70 /* Aligned to 16 bytes */
+
+#define JMP_SIZE (JMP_CTX_END >> 3)
+
+#ifndef __ASSEMBLER__
+
+#include <cdefs.h>
+
+/* Jump buffer hosting x18 - x30 and sp_el0 registers */
+typedef uint64_t jmp_buf[JMP_SIZE] __aligned(16);
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* SETJMP__H */
diff --git a/include/lib/libc/aarch64/stddef_.h b/include/lib/libc/aarch64/stddef_.h
new file mode 100644
index 0000000..6ecc606
--- /dev/null
+++ b/include/lib/libc/aarch64/stddef_.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDDEF__H
+#define STDDEF__H
+
+#ifndef SIZET_
+typedef unsigned long size_t;
+#define SIZET_
+#endif
+
+#endif /* STDDEF__H */
diff --git a/include/lib/libc/aarch64/stdint_.h b/include/lib/libc/aarch64/stdint_.h
new file mode 100644
index 0000000..56e9f1b
--- /dev/null
+++ b/include/lib/libc/aarch64/stdint_.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020 Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2020, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDINT__H
+#define STDINT__H
+
+#define INT64_MAX LONG_MAX
+#define INT64_MIN LONG_MIN
+#define UINT64_MAX ULONG_MAX
+
+#define INT64_C(x) x ## L
+#define UINT64_C(x) x ## UL
+
+typedef long int64_t;
+typedef unsigned long uint64_t;
+typedef long int64_least_t;
+typedef unsigned long uint64_least_t;
+typedef long int64_fast_t;
+typedef unsigned long uint64_fast_t;
+
+typedef __int128 int128_t;
+typedef unsigned __int128 uint128_t;
+
+#endif
diff --git a/include/lib/libc/aarch64/stdio_.h b/include/lib/libc/aarch64/stdio_.h
new file mode 100644
index 0000000..afaeadc
--- /dev/null
+++ b/include/lib/libc/aarch64/stdio_.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDIO__H
+#define STDIO__H
+
+#ifndef SSIZET_
+typedef long ssize_t;
+#define SSIZET_
+#endif
+
+#endif /* STDIO__H */
diff --git a/include/lib/libc/arm_acle.h b/include/lib/libc/arm_acle.h
new file mode 100644
index 0000000..eb08552
--- /dev/null
+++ b/include/lib/libc/arm_acle.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2021 ARM Limited
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * The definitions below are a subset of what we would normally get by using
+ * the compiler's version of arm_acle.h. We can't use that directly because
+ * we specify -nostdinc in the Makefiles.
+ *
+ * We just define the functions we need so far.
+ */
+
+#ifndef ARM_ACLE_H
+#define ARM_ACLE_H
+
+#if !defined(__aarch64__) || defined(__clang__)
+# define __crc32b __builtin_arm_crc32b
+# define __crc32w __builtin_arm_crc32w
+#else
+# define __crc32b __builtin_aarch64_crc32b
+# define __crc32w __builtin_aarch64_crc32w
+#endif
+
+#endif /* ARM_ACLE_H */
diff --git a/include/lib/libc/assert.h b/include/lib/libc/assert.h
new file mode 100644
index 0000000..462bb43
--- /dev/null
+++ b/include/lib/libc/assert.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ASSERT_H
+#define ASSERT_H
+
+#include <cdefs.h>
+
+#include <common/debug.h>
+
+#ifndef PLAT_LOG_LEVEL_ASSERT
+#define PLAT_LOG_LEVEL_ASSERT LOG_LEVEL
+#endif
+
+#if ENABLE_ASSERTIONS
+# if PLAT_LOG_LEVEL_ASSERT >= LOG_LEVEL_INFO
+# define assert(e) ((e) ? (void)0 : __assert(__FILE__, __LINE__))
+# else
+# define assert(e) ((e) ? (void)0 : __assert())
+# endif
+#else
+#define assert(e) ((void)0)
+#endif /* ENABLE_ASSERTIONS */
+
+#if PLAT_LOG_LEVEL_ASSERT >= LOG_LEVEL_INFO
+void __dead2 __assert(const char *file, unsigned int line);
+#else
+void __dead2 __assert(void);
+#endif
+
+#endif /* ASSERT_H */
diff --git a/include/lib/libc/cdefs.h b/include/lib/libc/cdefs.h
new file mode 100644
index 0000000..423f0db
--- /dev/null
+++ b/include/lib/libc/cdefs.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2018-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CDEFS_H
+#define CDEFS_H
+
+#define __dead2 __attribute__((__noreturn__))
+#define __deprecated __attribute__((__deprecated__))
+#define __packed __attribute__((__packed__))
+#define __used __attribute__((__used__))
+#define __unused __attribute__((__unused__))
+#define __maybe_unused __attribute__((__unused__))
+#define __aligned(x) __attribute__((__aligned__(x)))
+#define __section(x) __attribute__((__section__(x)))
+#if RECLAIM_INIT_CODE
+/*
+ * Add each function to a section that is unique so the functions can still
+ * be garbage collected
+ */
+#define __init __section(".text.init." __FILE__ "." __XSTRING(__LINE__))
+#else
+#define __init
+#endif
+
+#define __printflike(fmtarg, firstvararg) \
+ __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+
+#define __weak_reference(sym, alias) \
+ __asm__(".weak alias"); \
+ __asm__(".equ alias, sym")
+
+#define __STRING(x) #x
+#define __XSTRING(x) __STRING(x)
+
+#endif /* CDEFS_H */
diff --git a/include/lib/libc/endian.h b/include/lib/libc/endian.h
new file mode 100644
index 0000000..4100f57
--- /dev/null
+++ b/include/lib/libc/endian.h
@@ -0,0 +1,191 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org>
+ * 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 AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef ENDIAN_H
+#define ENDIAN_H
+
+#include <cdefs.h>
+#include <stdint.h>
+#include <endian_.h>
+
+/*
+ * General byte order swapping functions.
+ */
+#define bswap16(x) __bswap16(x)
+#define bswap32(x) __bswap32(x)
+#define bswap64(x) __bswap64(x)
+
+/*
+ * Host to big endian, host to little endian, big endian to host, and little
+ * endian to host byte order functions as detailed in byteorder(9).
+ */
+#if _BYTE_ORDER == _LITTLE_ENDIAN
+#define htobe16(x) bswap16((x))
+#define htobe32(x) bswap32((x))
+#define htobe64(x) bswap64((x))
+#define htole16(x) ((uint16_t)(x))
+#define htole32(x) ((uint32_t)(x))
+#define htole64(x) ((uint64_t)(x))
+
+#define be16toh(x) bswap16((x))
+#define be32toh(x) bswap32((x))
+#define be64toh(x) bswap64((x))
+#define le16toh(x) ((uint16_t)(x))
+#define le32toh(x) ((uint32_t)(x))
+#define le64toh(x) ((uint64_t)(x))
+#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
+#define htobe16(x) ((uint16_t)(x))
+#define htobe32(x) ((uint32_t)(x))
+#define htobe64(x) ((uint64_t)(x))
+#define htole16(x) bswap16((x))
+#define htole32(x) bswap32((x))
+#define htole64(x) bswap64((x))
+
+#define be16toh(x) ((uint16_t)(x))
+#define be32toh(x) ((uint32_t)(x))
+#define be64toh(x) ((uint64_t)(x))
+#define le16toh(x) bswap16((x))
+#define le32toh(x) bswap32((x))
+#define le64toh(x) bswap64((x))
+#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
+
+/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */
+
+static __inline uint16_t
+be16dec(const void *pp)
+{
+ uint8_t const *p = (uint8_t const *)pp;
+
+ return ((p[0] << 8) | p[1]);
+}
+
+static __inline uint32_t
+be32dec(const void *pp)
+{
+ uint8_t const *p = (uint8_t const *)pp;
+
+ return (((unsigned)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
+}
+
+static __inline uint64_t
+be64dec(const void *pp)
+{
+ uint8_t const *p = (uint8_t const *)pp;
+
+ return (((uint64_t)be32dec(p) << 32) | be32dec(p + 4));
+}
+
+static __inline uint16_t
+le16dec(const void *pp)
+{
+ uint8_t const *p = (uint8_t const *)pp;
+
+ return ((p[1] << 8) | p[0]);
+}
+
+static __inline uint32_t
+le32dec(const void *pp)
+{
+ uint8_t const *p = (uint8_t const *)pp;
+
+ return (((unsigned)p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
+}
+
+static __inline uint64_t
+le64dec(const void *pp)
+{
+ uint8_t const *p = (uint8_t const *)pp;
+
+ return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));
+}
+
+static __inline void
+be16enc(void *pp, uint16_t u)
+{
+ uint8_t *p = (uint8_t *)pp;
+
+ p[0] = (u >> 8) & 0xff;
+ p[1] = u & 0xff;
+}
+
+static __inline void
+be32enc(void *pp, uint32_t u)
+{
+ uint8_t *p = (uint8_t *)pp;
+
+ p[0] = (u >> 24) & 0xff;
+ p[1] = (u >> 16) & 0xff;
+ p[2] = (u >> 8) & 0xff;
+ p[3] = u & 0xff;
+}
+
+static __inline void
+be64enc(void *pp, uint64_t u)
+{
+ uint8_t *p = (uint8_t *)pp;
+
+ be32enc(p, (uint32_t)(u >> 32));
+ be32enc(p + 4, (uint32_t)(u & 0xffffffffU));
+}
+
+static __inline void
+le16enc(void *pp, uint16_t u)
+{
+ uint8_t *p = (uint8_t *)pp;
+
+ p[0] = u & 0xff;
+ p[1] = (u >> 8) & 0xff;
+}
+
+static __inline void
+le32enc(void *pp, uint32_t u)
+{
+ uint8_t *p = (uint8_t *)pp;
+
+ p[0] = u & 0xff;
+ p[1] = (u >> 8) & 0xff;
+ p[2] = (u >> 16) & 0xff;
+ p[3] = (u >> 24) & 0xff;
+}
+
+static __inline void
+le64enc(void *pp, uint64_t u)
+{
+ uint8_t *p = (uint8_t *)pp;
+
+ le32enc(p, (uint32_t)(u & 0xffffffffU));
+ le32enc(p + 4, (uint32_t)(u >> 32));
+}
+
+#endif /* ENDIAN_H */
diff --git a/include/lib/libc/errno.h b/include/lib/libc/errno.h
new file mode 100644
index 0000000..029912f
--- /dev/null
+++ b/include/lib/libc/errno.h
@@ -0,0 +1,169 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1982, 1986, 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * 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.
+ *
+ * @(#)errno.h 8.5 (Berkeley) 1/21/94
+ * $FreeBSD$
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef ERRNO_H
+#define ERRNO_H
+
+#define EPERM 1 /* Operation not permitted */
+#define ENOENT 2 /* No such file or directory */
+#define ESRCH 3 /* No such process */
+#define EINTR 4 /* Interrupted system call */
+#define EIO 5 /* Input/output error */
+#define ENXIO 6 /* Device not configured */
+#define E2BIG 7 /* Argument list too long */
+#define ENOEXEC 8 /* Exec format error */
+#define EBADF 9 /* Bad file descriptor */
+#define ECHILD 10 /* No child processes */
+#define EDEADLK 11 /* Resource deadlock avoided */
+ /* 11 was EAGAIN */
+#define ENOMEM 12 /* Cannot allocate memory */
+#define EACCES 13 /* Permission denied */
+#define EFAULT 14 /* Bad address */
+#define ENOTBLK 15 /* Block device required */
+#define EBUSY 16 /* Device busy */
+#define EEXIST 17 /* File exists */
+#define EXDEV 18 /* Cross-device link */
+#define ENODEV 19 /* Operation not supported by device */
+#define ENOTDIR 20 /* Not a directory */
+#define EISDIR 21 /* Is a directory */
+#define EINVAL 22 /* Invalid argument */
+#define ENFILE 23 /* Too many open files in system */
+#define EMFILE 24 /* Too many open files */
+#define ENOTTY 25 /* Inappropriate ioctl for device */
+#define ETXTBSY 26 /* Text file busy */
+#define EFBIG 27 /* File too large */
+#define ENOSPC 28 /* No space left on device */
+#define ESPIPE 29 /* Illegal seek */
+#define EROFS 30 /* Read-only filesystem */
+#define EMLINK 31 /* Too many links */
+#define EPIPE 32 /* Broken pipe */
+
+/* math software */
+#define EDOM 33 /* Numerical argument out of domain */
+#define ERANGE 34 /* Result too large */
+
+/* non-blocking and interrupt i/o */
+#define EAGAIN 35 /* Resource temporarily unavailable */
+#define EWOULDBLOCK EAGAIN /* Operation would block */
+#define EINPROGRESS 36 /* Operation now in progress */
+#define EALREADY 37 /* Operation already in progress */
+
+/* ipc/network software -- argument errors */
+#define ENOTSOCK 38 /* Socket operation on non-socket */
+#define EDESTADDRREQ 39 /* Destination address required */
+#define EMSGSIZE 40 /* Message too long */
+#define EPROTOTYPE 41 /* Protocol wrong type for socket */
+#define ENOPROTOOPT 42 /* Protocol not available */
+#define EPROTONOSUPPORT 43 /* Protocol not supported */
+#define ESOCKTNOSUPPORT 44 /* Socket type not supported */
+#define EOPNOTSUPP 45 /* Operation not supported */
+#define ENOTSUP EOPNOTSUPP /* Operation not supported */
+#define EPFNOSUPPORT 46 /* Protocol family not supported */
+#define EAFNOSUPPORT 47 /* Address family not supported by protocol family */
+#define EADDRINUSE 48 /* Address already in use */
+#define EADDRNOTAVAIL 49 /* Can't assign requested address */
+
+/* ipc/network software -- operational errors */
+#define ENETDOWN 50 /* Network is down */
+#define ENETUNREACH 51 /* Network is unreachable */
+#define ENETRESET 52 /* Network dropped connection on reset */
+#define ECONNABORTED 53 /* Software caused connection abort */
+#define ECONNRESET 54 /* Connection reset by peer */
+#define ENOBUFS 55 /* No buffer space available */
+#define EISCONN 56 /* Socket is already connected */
+#define ENOTCONN 57 /* Socket is not connected */
+#define ESHUTDOWN 58 /* Can't send after socket shutdown */
+#define ETOOMANYREFS 59 /* Too many references: can't splice */
+#define ETIMEDOUT 60 /* Operation timed out */
+#define ECONNREFUSED 61 /* Connection refused */
+
+#define ELOOP 62 /* Too many levels of symbolic links */
+#define ENAMETOOLONG 63 /* File name too long */
+
+/* should be rearranged */
+#define EHOSTDOWN 64 /* Host is down */
+#define EHOSTUNREACH 65 /* No route to host */
+#define ENOTEMPTY 66 /* Directory not empty */
+
+/* quotas & mush */
+#define EPROCLIM 67 /* Too many processes */
+#define EUSERS 68 /* Too many users */
+#define EDQUOT 69 /* Disc quota exceeded */
+
+/* Network File System */
+#define ESTALE 70 /* Stale NFS file handle */
+#define EREMOTE 71 /* Too many levels of remote in path */
+#define EBADRPC 72 /* RPC struct is bad */
+#define ERPCMISMATCH 73 /* RPC version wrong */
+#define EPROGUNAVAIL 74 /* RPC prog. not avail */
+#define EPROGMISMATCH 75 /* Program version wrong */
+#define EPROCUNAVAIL 76 /* Bad procedure for program */
+
+#define ENOLCK 77 /* No locks available */
+#define ENOSYS 78 /* Function not implemented */
+
+#define EFTYPE 79 /* Inappropriate file type or format */
+#define EAUTH 80 /* Authentication error */
+#define ENEEDAUTH 81 /* Need authenticator */
+#define EIDRM 82 /* Identifier removed */
+#define ENOMSG 83 /* No message of desired type */
+#define EOVERFLOW 84 /* Value too large to be stored in data type */
+#define ECANCELED 85 /* Operation canceled */
+#define EILSEQ 86 /* Illegal byte sequence */
+#define ENOATTR 87 /* Attribute not found */
+
+#define EDOOFUS 88 /* Programming error */
+
+#define EBADMSG 89 /* Bad message */
+#define EMULTIHOP 90 /* Multihop attempted */
+#define ENOLINK 91 /* Link has been severed */
+#define EPROTO 92 /* Protocol error */
+
+#define ENOTCAPABLE 93 /* Capabilities insufficient */
+#define ECAPMODE 94 /* Not permitted in capability mode */
+#define ENOTRECOVERABLE 95 /* State not recoverable */
+#define EOWNERDEAD 96 /* Previous owner died */
+
+#define ELAST 96 /* Must be equal largest errno */
+
+#endif /* ERRNO_H */
diff --git a/include/lib/libc/inttypes.h b/include/lib/libc/inttypes.h
new file mode 100644
index 0000000..6ad1c9e
--- /dev/null
+++ b/include/lib/libc/inttypes.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2020 Broadcom
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2020, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef INTTYPES_H
+#define INTTYPES_H
+
+#include <inttypes_.h>
+#include <stdint.h>
+
+#define PRId8 "d" /* int8_t */
+#define PRId16 "d" /* int16_t */
+#define PRId32 "d" /* int32_t */
+
+#define PRIi8 "i" /* int8_t */
+#define PRIi16 "i" /* int16_t */
+#define PRIi32 "i" /* int32_t */
+
+#define PRIo8 "o" /* int8_t */
+#define PRIo16 "o" /* int16_t */
+#define PRIo32 "o" /* int32_t */
+
+#define PRIu8 "u" /* uint8_t */
+#define PRIu16 "u" /* uint16_t */
+#define PRIu32 "u" /* uint32_t */
+
+#define PRIx8 "x" /* uint8_t */
+#define PRIx16 "x" /* uint16_t */
+#define PRIx32 "x" /* uint32_t */
+
+#define PRIX8 "X" /* uint8_t */
+#define PRIX16 "X" /* uint16_t */
+#define PRIX32 "X" /* uint32_t */
+
+#endif
diff --git a/include/lib/libc/limits.h b/include/lib/libc/limits.h
new file mode 100644
index 0000000..41bb658
--- /dev/null
+++ b/include/lib/libc/limits.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef LIMITS_H
+#define LIMITS_H
+
+#include <limits_.h>
+
+#define CHAR_BIT 8
+#define MB_LEN_MAX 1
+
+#endif /* LIMITS_H */
diff --git a/include/lib/libc/setjmp.h b/include/lib/libc/setjmp.h
new file mode 100644
index 0000000..be8e2c0
--- /dev/null
+++ b/include/lib/libc/setjmp.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SETJMP_H
+#define SETJMP_H
+
+#include <setjmp_.h>
+
+#ifndef __ASSEMBLER__
+
+#include <cdefs.h>
+
+int setjmp(jmp_buf env);
+__dead2 void longjmp(jmp_buf env, int val);
+
+#endif /* __ASSEMBLER__ */
+#endif /* SETJMP_H */
diff --git a/include/lib/libc/stdarg.h b/include/lib/libc/stdarg.h
new file mode 100644
index 0000000..e260b9b
--- /dev/null
+++ b/include/lib/libc/stdarg.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDARG_H
+#define STDARG_H
+
+#define va_list __builtin_va_list
+#define va_start(ap, last) __builtin_va_start(ap, last)
+#define va_end(ap) __builtin_va_end(ap)
+#define va_copy(to, from) __builtin_va_copy(to, from)
+#define va_arg(to, type) __builtin_va_arg(to, type)
+
+#endif /* STDARG_H */
diff --git a/include/lib/libc/stdbool.h b/include/lib/libc/stdbool.h
new file mode 100644
index 0000000..b58334c
--- /dev/null
+++ b/include/lib/libc/stdbool.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STDBOOL_H
+#define STDBOOL_H
+
+#define bool _Bool
+
+#define true (0 < 1)
+#define false (0 > 1)
+
+#define __bool_true_false_are_defined 1
+
+#endif /* STDBOOL_H */
diff --git a/include/lib/libc/stddef.h b/include/lib/libc/stddef.h
new file mode 100644
index 0000000..58a519e
--- /dev/null
+++ b/include/lib/libc/stddef.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018-2019, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDDEF_H
+#define STDDEF_H
+
+#include <stddef_.h>
+
+#ifndef _PTRDIFF_T
+typedef long ptrdiff_t;
+#define _PTRDIFF_T
+#endif
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+#define offsetof(st, m) __builtin_offsetof(st, m)
+
+#endif /* STDDEF_H */
diff --git a/include/lib/libc/stdint.h b/include/lib/libc/stdint.h
new file mode 100644
index 0000000..e96a25c
--- /dev/null
+++ b/include/lib/libc/stdint.h
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018-2019, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDINT_H
+#define STDINT_H
+
+#include <limits.h>
+#include <stdint_.h>
+
+#define INT8_MAX CHAR_MAX
+#define INT8_MIN CHAR_MIN
+#define UINT8_MAX UCHAR_MAX
+
+#define INT16_MAX SHRT_MAX
+#define INT16_MIN SHRT_MIN
+#define UINT16_MAX USHRT_MAX
+
+#define INT32_MAX INT_MAX
+#define INT32_MIN INT_MIN
+#define UINT32_MAX UINT_MAX
+
+#define INT_LEAST8_MIN INT8_MIN
+#define INT_LEAST8_MAX INT8_MAX
+#define UINT_LEAST8_MAX UINT8_MAX
+
+#define INT_LEAST16_MIN INT16_MIN
+#define INT_LEAST16_MAX INT16_MAX
+#define UINT_LEAST16_MAX UINT16_MAX
+
+#define INT_LEAST32_MIN INT32_MIN
+#define INT_LEAST32_MAX INT32_MAX
+#define UINT_LEAST32_MAX UINT32_MAX
+
+#define INT_LEAST64_MIN INT64_MIN
+#define INT_LEAST64_MAX INT64_MAX
+#define UINT_LEAST64_MAX UINT64_MAX
+
+#define INT_FAST8_MIN INT32_MIN
+#define INT_FAST8_MAX INT32_MAX
+#define UINT_FAST8_MAX UINT32_MAX
+
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST16_MAX INT32_MAX
+#define UINT_FAST16_MAX UINT32_MAX
+
+#define INT_FAST32_MIN INT32_MIN
+#define INT_FAST32_MAX INT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INT_FAST64_MIN INT64_MIN
+#define INT_FAST64_MAX INT64_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
+#define INTPTR_MIN LONG_MIN
+#define INTPTR_MAX LONG_MAX
+#define UINTPTR_MAX ULONG_MAX
+
+#define INTMAX_MIN LLONG_MIN
+#define INTMAX_MAX LLONG_MAX
+#define UINTMAX_MAX ULLONG_MAX
+
+#define PTRDIFF_MIN LONG_MIN
+#define PTRDIFF_MAX LONG_MAX
+
+#define SIZE_MAX ULONG_MAX
+
+#define INT8_C(x) x
+#define INT16_C(x) x
+#define INT32_C(x) x
+
+#define UINT8_C(x) x
+#define UINT16_C(x) x
+#define UINT32_C(x) x ## U
+
+#define INTMAX_C(x) x ## LL
+#define UINTMAX_C(x) x ## ULL
+
+typedef signed char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+
+typedef signed char int8_least_t;
+typedef short int16_least_t;
+typedef int int32_least_t;
+
+typedef unsigned char uint8_least_t;
+typedef unsigned short uint16_least_t;
+typedef unsigned int uint32_least_t;
+
+typedef int int8_fast_t;
+typedef int int16_fast_t;
+typedef int int32_fast_t;
+
+typedef unsigned int uint8_fast_t;
+typedef unsigned int uint16_fast_t;
+typedef unsigned int uint32_fast_t;
+
+typedef long intptr_t;
+typedef unsigned long uintptr_t;
+
+/*
+* Conceptually, these are supposed to be the largest integers representable in C,
+* but GCC and Clang define them as long long for compatibility.
+*/
+typedef long long intmax_t;
+typedef unsigned long long uintmax_t;
+
+typedef long register_t;
+typedef unsigned long u_register_t;
+
+#endif /* STDINT_H */
diff --git a/include/lib/libc/stdio.h b/include/lib/libc/stdio.h
new file mode 100644
index 0000000..ba13683
--- /dev/null
+++ b/include/lib/libc/stdio.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018-2019, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDIO_H
+#define STDIO_H
+
+#include <cdefs.h>
+#include <stddef.h>
+#include <stdio_.h>
+
+#define EOF -1
+
+int printf(const char *fmt, ...) __printflike(1, 2);
+int snprintf(char *s, size_t n, const char *fmt, ...) __printflike(3, 4);
+
+#ifdef STDARG_H
+int vprintf(const char *fmt, va_list args);
+int vsnprintf(char *s, size_t n, const char *fmt, va_list args);
+#endif
+
+int putchar(int c);
+int puts(const char *s);
+
+#endif /* STDIO_H */
diff --git a/include/lib/libc/stdlib.h b/include/lib/libc/stdlib.h
new file mode 100644
index 0000000..4641e56
--- /dev/null
+++ b/include/lib/libc/stdlib.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2012-2021 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018-2019, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STDLIB_H
+#define STDLIB_H
+
+#include <stddef.h>
+
+#define EXIT_FAILURE 1
+#define EXIT_SUCCESS 0
+
+#define _ATEXIT_MAX 1
+
+#define isspace(x) (((x) == ' ') || ((x) == '\r') || ((x) == '\n') || \
+ ((x) == '\t') || ((x) == '\b'))
+
+extern void abort(void);
+extern int atexit(void (*func)(void));
+extern void exit(int status);
+
+long strtol(const char *nptr, char **endptr, int base);
+unsigned long strtoul(const char *nptr, char **endptr, int base);
+long long strtoll(const char *nptr, char **endptr, int base);
+unsigned long long strtoull(const char *nptr, char **endptr, int base);
+#endif /* STDLIB_H */
diff --git a/include/lib/libc/string.h b/include/lib/libc/string.h
new file mode 100644
index 0000000..9894483
--- /dev/null
+++ b/include/lib/libc/string.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018-2020, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef STRING_H
+#define STRING_H
+
+#include <stddef.h>
+
+void *memcpy(void *dst, const void *src, size_t len);
+void *memmove(void *dst, const void *src, size_t len);
+int memcmp(const void *s1, const void *s2, size_t len);
+int strcmp(const char *s1, const char *s2);
+int strncmp(const char *s1, const char *s2, size_t n);
+void *memchr(const void *src, int c, size_t len);
+void *memrchr(const void *src, int c, size_t len);
+char *strchr(const char *s, int c);
+void *memset(void *dst, int val, size_t count);
+size_t strlen(const char *s);
+size_t strnlen(const char *s, size_t maxlen);
+char *strrchr(const char *p, int ch);
+size_t strlcpy(char * dst, const char * src, size_t dsize);
+size_t strlcat(char * dst, const char * src, size_t dsize);
+char *strtok_r(char *s, const char *delim, char **last);
+
+#endif /* STRING_H */
diff --git a/include/lib/libc/sys/cdefs.h b/include/lib/libc/sys/cdefs.h
new file mode 100644
index 0000000..1ace5fb
--- /dev/null
+++ b/include/lib/libc/sys/cdefs.h
@@ -0,0 +1,922 @@
+/*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Berkeley Software Design, Inc.
+ *
+ * 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.
+ *
+ * @(#)cdefs.h 8.8 (Berkeley) 1/9/95
+ * $FreeBSD$
+ */
+
+#ifndef _SYS_CDEFS_H_
+#define _SYS_CDEFS_H_
+
+#if defined(_KERNEL) && defined(_STANDALONE)
+#error "_KERNEL and _STANDALONE are mutually exclusive"
+#endif
+
+/*
+ * Testing against Clang-specific extensions.
+ */
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+#ifndef __has_extension
+#define __has_extension __has_feature
+#endif
+#ifndef __has_feature
+#define __has_feature(x) 0
+#endif
+#ifndef __has_include
+#define __has_include(x) 0
+#endif
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
+#if defined(__cplusplus)
+#define __BEGIN_DECLS extern "C" {
+#define __END_DECLS }
+#else
+#define __BEGIN_DECLS
+#define __END_DECLS
+#endif
+
+/*
+ * This code has been put in place to help reduce the addition of
+ * compiler specific defines in FreeBSD code. It helps to aid in
+ * having a compiler-agnostic source tree.
+ */
+
+#if defined(__GNUC__)
+
+#if __GNUC__ >= 3
+#define __GNUCLIKE_ASM 3
+#define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
+#else
+#define __GNUCLIKE_ASM 2
+#endif
+#define __GNUCLIKE___TYPEOF 1
+#define __GNUCLIKE___SECTION 1
+
+#define __GNUCLIKE_CTOR_SECTION_HANDLING 1
+
+#define __GNUCLIKE_BUILTIN_CONSTANT_P 1
+
+#if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3)
+#define __GNUCLIKE_BUILTIN_VARARGS 1
+#define __GNUCLIKE_BUILTIN_STDARG 1
+#define __GNUCLIKE_BUILTIN_VAALIST 1
+#endif
+
+#define __GNUC_VA_LIST_COMPATIBILITY 1
+
+/*
+ * Compiler memory barriers, specific to gcc and clang.
+ */
+#define __compiler_membar() __asm __volatile(" " : : : "memory")
+
+#define __GNUCLIKE_BUILTIN_NEXT_ARG 1
+#define __GNUCLIKE_MATH_BUILTIN_RELOPS
+
+#define __GNUCLIKE_BUILTIN_MEMCPY 1
+
+/* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
+#define __CC_SUPPORTS_INLINE 1
+#define __CC_SUPPORTS___INLINE 1
+#define __CC_SUPPORTS___INLINE__ 1
+
+#define __CC_SUPPORTS___FUNC__ 1
+#define __CC_SUPPORTS_WARNING 1
+
+#define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
+
+#define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
+
+#endif /* __GNUC__ */
+
+/*
+ * Macro to test if we're using a specific version of gcc or later.
+ */
+#if defined(__GNUC__)
+#define __GNUC_PREREQ__(ma, mi) \
+ (__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
+#else
+#define __GNUC_PREREQ__(ma, mi) 0
+#endif
+
+/*
+ * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+ * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+ * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI
+ * mode -- there must be no spaces between its arguments, and for nested
+ * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also
+ * concatenate double-quoted strings produced by the __STRING macro, but
+ * this only works with ANSI C.
+ *
+ * __XSTRING is like __STRING, but it expands any macros in its argument
+ * first. It is only available with ANSI C.
+ */
+#if defined(__STDC__) || defined(__cplusplus)
+#define __P(protos) protos /* full-blown ANSI C */
+#define __CONCAT1(x,y) x ## y
+#define __CONCAT(x,y) __CONCAT1(x,y)
+#define __STRING(x) #x /* stringify without expanding x */
+#define __XSTRING(x) __STRING(x) /* expand x, then stringify */
+
+#define __const const /* define reserved names to standard */
+#define __signed signed
+#define __volatile volatile
+#if defined(__cplusplus)
+#define __inline inline /* convert to C++ keyword */
+#else
+#if !(defined(__CC_SUPPORTS___INLINE))
+#define __inline /* delete GCC keyword */
+#endif /* ! __CC_SUPPORTS___INLINE */
+#endif /* !__cplusplus */
+
+#else /* !(__STDC__ || __cplusplus) */
+#define __P(protos) () /* traditional C preprocessor */
+#define __CONCAT(x,y) x/**/y
+#define __STRING(x) "x"
+
+#if !defined(__CC_SUPPORTS___INLINE)
+#define __const /* delete pseudo-ANSI C keywords */
+#define __inline
+#define __signed
+#define __volatile
+/*
+ * In non-ANSI C environments, new programs will want ANSI-only C keywords
+ * deleted from the program and old programs will want them left alone.
+ * When using a compiler other than gcc, programs using the ANSI C keywords
+ * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
+ * When using "gcc -traditional", we assume that this is the intent; if
+ * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
+ */
+#ifndef NO_ANSI_KEYWORDS
+#define const /* delete ANSI C keywords */
+#define inline
+#define signed
+#define volatile
+#endif /* !NO_ANSI_KEYWORDS */
+#endif /* !__CC_SUPPORTS___INLINE */
+#endif /* !(__STDC__ || __cplusplus) */
+
+/*
+ * Compiler-dependent macros to help declare dead (non-returning) and
+ * pure (no side effects) functions, and unused variables. They are
+ * null except for versions of gcc that are known to support the features
+ * properly (old versions of gcc-2 supported the dead and pure features
+ * in a different (wrong) way). If we do not provide an implementation
+ * for a given compiler, let the compile fail if it is told to use
+ * a feature that we cannot live without.
+ */
+#define __weak_symbol __attribute__((__weak__))
+#if !__GNUC_PREREQ__(2, 5)
+#define __dead2
+#define __pure2
+#define __unused
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
+#define __dead2 __attribute__((__noreturn__))
+#define __pure2 __attribute__((__const__))
+#define __unused
+/* XXX Find out what to do for __packed, __aligned and __section */
+#endif
+#if __GNUC_PREREQ__(2, 7)
+#define __dead2 __attribute__((__noreturn__))
+#define __pure2 __attribute__((__const__))
+#define __unused __attribute__((__unused__))
+#define __used __attribute__((__used__))
+#define __packed __attribute__((__packed__))
+#define __aligned(x) __attribute__((__aligned__(x)))
+#define __section(x) __attribute__((__section__(x)))
+#endif
+#if __GNUC_PREREQ__(4, 3) || __has_attribute(__alloc_size__)
+#define __alloc_size(x) __attribute__((__alloc_size__(x)))
+#define __alloc_size2(n, x) __attribute__((__alloc_size__(n, x)))
+#else
+#define __alloc_size(x)
+#define __alloc_size2(n, x)
+#endif
+#if __GNUC_PREREQ__(4, 9) || __has_attribute(__alloc_align__)
+#define __alloc_align(x) __attribute__((__alloc_align__(x)))
+#else
+#define __alloc_align(x)
+#endif
+
+#if !__GNUC_PREREQ__(2, 95)
+#define __alignof(x) __offsetof(struct { char __a; x __b; }, __b)
+#endif
+
+/*
+ * Keywords added in C11.
+ */
+
+#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L
+
+#if !__has_extension(c_alignas)
+#if (defined(__cplusplus) && __cplusplus >= 201103L) || \
+ __has_extension(cxx_alignas)
+#define _Alignas(x) alignas(x)
+#else
+/* XXX: Only emulates _Alignas(constant-expression); not _Alignas(type-name). */
+#define _Alignas(x) __aligned(x)
+#endif
+#endif
+
+#if defined(__cplusplus) && __cplusplus >= 201103L
+#define _Alignof(x) alignof(x)
+#else
+#define _Alignof(x) __alignof(x)
+#endif
+
+#if !defined(__cplusplus) && !__has_extension(c_atomic) && \
+ !__has_extension(cxx_atomic) && !__GNUC_PREREQ__(4, 7)
+/*
+ * No native support for _Atomic(). Place object in structure to prevent
+ * most forms of direct non-atomic access.
+ */
+#define _Atomic(T) struct { T volatile __val; }
+#endif
+
+#if defined(__cplusplus) && __cplusplus >= 201103L
+#define _Noreturn [[noreturn]]
+#else
+#define _Noreturn __dead2
+#endif
+
+#if !__has_extension(c_static_assert)
+#if (defined(__cplusplus) && __cplusplus >= 201103L) || \
+ __has_extension(cxx_static_assert)
+#define _Static_assert(x, y) static_assert(x, y)
+#elif __GNUC_PREREQ__(4,6) && !defined(__cplusplus)
+/* Nothing, gcc 4.6 and higher has _Static_assert built-in */
+#elif defined(__COUNTER__)
+#define _Static_assert(x, y) __Static_assert(x, __COUNTER__)
+#define __Static_assert(x, y) ___Static_assert(x, y)
+#define ___Static_assert(x, y) typedef char __assert_ ## y[(x) ? 1 : -1] \
+ __unused
+#else
+#define _Static_assert(x, y) struct __hack
+#endif
+#endif
+
+#if !__has_extension(c_thread_local)
+/*
+ * XXX: Some compilers (Clang 3.3, GCC 4.7) falsely announce C++11 mode
+ * without actually supporting the thread_local keyword. Don't check for
+ * the presence of C++11 when defining _Thread_local.
+ */
+#if /* (defined(__cplusplus) && __cplusplus >= 201103L) || */ \
+ __has_extension(cxx_thread_local)
+#define _Thread_local thread_local
+#else
+#define _Thread_local __thread
+#endif
+#endif
+
+#endif /* __STDC_VERSION__ || __STDC_VERSION__ < 201112L */
+
+/*
+ * Emulation of C11 _Generic(). Unlike the previously defined C11
+ * keywords, it is not possible to implement this using exactly the same
+ * syntax. Therefore implement something similar under the name
+ * __generic(). Unlike _Generic(), this macro can only distinguish
+ * between a single type, so it requires nested invocations to
+ * distinguish multiple cases.
+ */
+
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
+ __has_extension(c_generic_selections)
+#define __generic(expr, t, yes, no) \
+ _Generic(expr, t: yes, default: no)
+#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus)
+#define __generic(expr, t, yes, no) \
+ __builtin_choose_expr( \
+ __builtin_types_compatible_p(__typeof(expr), t), yes, no)
+#endif
+
+/*
+ * C99 Static array indices in function parameter declarations. Syntax such as:
+ * void bar(int myArray[static 10]);
+ * is allowed in C99 but not in C++. Define __min_size appropriately so
+ * headers using it can be compiled in either language. Use like this:
+ * void bar(int myArray[__min_size(10)]);
+ */
+#if !defined(__cplusplus) && \
+ (defined(__clang__) || __GNUC_PREREQ__(4, 6)) && \
+ (!defined(__STDC_VERSION__) || (__STDC_VERSION__ >= 199901))
+#define __min_size(x) static (x)
+#else
+#define __min_size(x) (x)
+#endif
+
+#if __GNUC_PREREQ__(2, 96)
+#define __malloc_like __attribute__((__malloc__))
+#define __pure __attribute__((__pure__))
+#else
+#define __malloc_like
+#define __pure
+#endif
+
+#if __GNUC_PREREQ__(3, 1)
+#define __always_inline __attribute__((__always_inline__))
+#else
+#define __always_inline
+#endif
+
+#if __GNUC_PREREQ__(3, 1)
+#define __noinline __attribute__ ((__noinline__))
+#else
+#define __noinline
+#endif
+
+#if __GNUC_PREREQ__(3, 4)
+#define __fastcall __attribute__((__fastcall__))
+#define __result_use_check __attribute__((__warn_unused_result__))
+#else
+#define __fastcall
+#define __result_use_check
+#endif
+
+#if __GNUC_PREREQ__(4, 1)
+#define __returns_twice __attribute__((__returns_twice__))
+#else
+#define __returns_twice
+#endif
+
+#if __GNUC_PREREQ__(4, 6) || __has_builtin(__builtin_unreachable)
+#define __unreachable() __builtin_unreachable()
+#else
+#define __unreachable() ((void)0)
+#endif
+
+/* XXX: should use `#if __STDC_VERSION__ < 199901'. */
+#if !__GNUC_PREREQ__(2, 7)
+#define __func__ NULL
+#endif
+
+#if (defined(__GNUC__) && __GNUC__ >= 2) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
+#define __LONG_LONG_SUPPORTED
+#endif
+
+/* C++11 exposes a load of C99 stuff */
+#if defined(__cplusplus) && __cplusplus >= 201103L
+#define __LONG_LONG_SUPPORTED
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS
+#endif
+#ifndef __STDC_CONSTANT_MACROS
+#define __STDC_CONSTANT_MACROS
+#endif
+#endif
+
+/*
+ * GCC 2.95 provides `__restrict' as an extension to C90 to support the
+ * C99-specific `restrict' type qualifier. We happen to use `__restrict' as
+ * a way to define the `restrict' type qualifier without disturbing older
+ * software that is unaware of C99 keywords.
+ */
+#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
+#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901
+#define __restrict
+#else
+#define __restrict restrict
+#endif
+#endif
+
+/*
+ * GNU C version 2.96 adds explicit branch prediction so that
+ * the CPU back-end can hint the processor and also so that
+ * code blocks can be reordered such that the predicted path
+ * sees a more linear flow, thus improving cache behavior, etc.
+ *
+ * The following two macros provide us with a way to utilize this
+ * compiler feature. Use __predict_true() if you expect the expression
+ * to evaluate to true, and __predict_false() if you expect the
+ * expression to evaluate to false.
+ *
+ * A few notes about usage:
+ *
+ * * Generally, __predict_false() error condition checks (unless
+ * you have some _strong_ reason to do otherwise, in which case
+ * document it), and/or __predict_true() `no-error' condition
+ * checks, assuming you want to optimize for the no-error case.
+ *
+ * * Other than that, if you don't know the likelihood of a test
+ * succeeding from empirical or other `hard' evidence, don't
+ * make predictions.
+ *
+ * * These are meant to be used in places that are run `a lot'.
+ * It is wasteful to make predictions in code that is run
+ * seldomly (e.g. at subsystem initialization time) as the
+ * basic block reordering that this affects can often generate
+ * larger code.
+ */
+#if __GNUC_PREREQ__(2, 96)
+#define __predict_true(exp) __builtin_expect((exp), 1)
+#define __predict_false(exp) __builtin_expect((exp), 0)
+#else
+#define __predict_true(exp) (exp)
+#define __predict_false(exp) (exp)
+#endif
+
+#if __GNUC_PREREQ__(4, 0)
+#define __null_sentinel __attribute__((__sentinel__))
+#define __exported __attribute__((__visibility__("default")))
+#define __hidden __attribute__((__visibility__("hidden")))
+#else
+#define __null_sentinel
+#define __exported
+#define __hidden
+#endif
+
+/*
+ * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
+ * require it.
+ */
+#if __GNUC_PREREQ__(4, 1)
+#define __offsetof(type, field) __builtin_offsetof(type, field)
+#else
+#ifndef __cplusplus
+#define __offsetof(type, field) \
+ ((__size_t)(__uintptr_t)((const volatile void *)&((type *)0)->field))
+#else
+#define __offsetof(type, field) \
+ (__offsetof__ (reinterpret_cast <__size_t> \
+ (&reinterpret_cast <const volatile char &> \
+ (static_cast<type *> (0)->field))))
+#endif
+#endif
+#define __rangeof(type, start, end) \
+ (__offsetof(type, end) - __offsetof(type, start))
+
+/*
+ * Given the pointer x to the member m of the struct s, return
+ * a pointer to the containing structure. When using GCC, we first
+ * assign pointer x to a local variable, to check that its type is
+ * compatible with member m.
+ */
+#if __GNUC_PREREQ__(3, 1)
+#define __containerof(x, s, m) ({ \
+ const volatile __typeof(((s *)0)->m) *__x = (x); \
+ __DEQUALIFY(s *, (const volatile char *)__x - __offsetof(s, m));\
+})
+#else
+#define __containerof(x, s, m) \
+ __DEQUALIFY(s *, (const volatile char *)(x) - __offsetof(s, m))
+#endif
+
+/*
+ * Compiler-dependent macros to declare that functions take printf-like
+ * or scanf-like arguments. They are null except for versions of gcc
+ * that are known to support the features properly (old versions of gcc-2
+ * didn't permit keeping the keywords out of the application namespace).
+ */
+#if !__GNUC_PREREQ__(2, 7)
+#define __printflike(fmtarg, firstvararg)
+#define __scanflike(fmtarg, firstvararg)
+#define __format_arg(fmtarg)
+#define __strfmonlike(fmtarg, firstvararg)
+#define __strftimelike(fmtarg, firstvararg)
+#else
+#define __printflike(fmtarg, firstvararg) \
+ __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+#define __scanflike(fmtarg, firstvararg) \
+ __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
+#define __format_arg(fmtarg) __attribute__((__format_arg__ (fmtarg)))
+#define __strfmonlike(fmtarg, firstvararg) \
+ __attribute__((__format__ (__strfmon__, fmtarg, firstvararg)))
+#define __strftimelike(fmtarg, firstvararg) \
+ __attribute__((__format__ (__strftime__, fmtarg, firstvararg)))
+#endif
+
+/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
+#if defined(__FreeBSD_cc_version) && __FreeBSD_cc_version >= 300001 && \
+ defined(__GNUC__)
+#define __printf0like(fmtarg, firstvararg) \
+ __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
+#else
+#define __printf0like(fmtarg, firstvararg)
+#endif
+
+#if defined(__GNUC__)
+#define __strong_reference(sym,aliassym) \
+ extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
+#ifdef __STDC__
+#define __weak_reference(sym,alias) \
+ __asm__(".weak " #alias); \
+ __asm__(".equ " #alias ", " #sym)
+#define __warn_references(sym,msg) \
+ __asm__(".section .gnu.warning." #sym); \
+ __asm__(".asciz \"" msg "\""); \
+ __asm__(".previous")
+#define __sym_compat(sym,impl,verid) \
+ __asm__(".symver " #impl ", " #sym "@" #verid)
+#define __sym_default(sym,impl,verid) \
+ __asm__(".symver " #impl ", " #sym "@@@" #verid)
+#else
+#define __weak_reference(sym,alias) \
+ __asm__(".weak alias"); \
+ __asm__(".equ alias, sym")
+#define __warn_references(sym,msg) \
+ __asm__(".section .gnu.warning.sym"); \
+ __asm__(".asciz \"msg\""); \
+ __asm__(".previous")
+#define __sym_compat(sym,impl,verid) \
+ __asm__(".symver impl, sym@verid")
+#define __sym_default(impl,sym,verid) \
+ __asm__(".symver impl, sym@@@verid")
+#endif /* __STDC__ */
+#endif /* __GNUC__ */
+
+#define __GLOBL(sym) __asm__(".globl " __XSTRING(sym))
+#define __WEAK(sym) __asm__(".weak " __XSTRING(sym))
+
+#if defined(__GNUC__)
+#define __IDSTRING(name,string) __asm__(".ident\t\"" string "\"")
+#else
+/*
+ * The following definition might not work well if used in header files,
+ * but it should be better than nothing. If you want a "do nothing"
+ * version, then it should generate some harmless declaration, such as:
+ * #define __IDSTRING(name,string) struct __hack
+ */
+#define __IDSTRING(name,string) static const char name[] __unused = string
+#endif
+
+/*
+ * Embed the rcs id of a source file in the resulting library. Note that in
+ * more recent ELF binutils, we use .ident allowing the ID to be stripped.
+ * Usage:
+ * __FBSDID("$FreeBSD$");
+ */
+#ifndef __FBSDID
+#if !defined(STRIP_FBSDID)
+#define __FBSDID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
+#else
+#define __FBSDID(s) struct __hack
+#endif
+#endif
+
+#ifndef __RCSID
+#ifndef NO__RCSID
+#define __RCSID(s) __IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
+#else
+#define __RCSID(s) struct __hack
+#endif
+#endif
+
+#ifndef __RCSID_SOURCE
+#ifndef NO__RCSID_SOURCE
+#define __RCSID_SOURCE(s) __IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
+#else
+#define __RCSID_SOURCE(s) struct __hack
+#endif
+#endif
+
+#ifndef __SCCSID
+#ifndef NO__SCCSID
+#define __SCCSID(s) __IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
+#else
+#define __SCCSID(s) struct __hack
+#endif
+#endif
+
+#ifndef __COPYRIGHT
+#ifndef NO__COPYRIGHT
+#define __COPYRIGHT(s) __IDSTRING(__CONCAT(__copyright_,__LINE__),s)
+#else
+#define __COPYRIGHT(s) struct __hack
+#endif
+#endif
+
+#ifndef __DECONST
+#define __DECONST(type, var) ((type)(__uintptr_t)(const void *)(var))
+#endif
+
+#ifndef __DEVOLATILE
+#define __DEVOLATILE(type, var) ((type)(__uintptr_t)(volatile void *)(var))
+#endif
+
+#ifndef __DEQUALIFY
+#define __DEQUALIFY(type, var) ((type)(__uintptr_t)(const volatile void *)(var))
+#endif
+
+/*-
+ * The following definitions are an extension of the behavior originally
+ * implemented in <sys/_posix.h>, but with a different level of granularity.
+ * POSIX.1 requires that the macros we test be defined before any standard
+ * header file is included.
+ *
+ * Here's a quick run-down of the versions (and some informal names)
+ * defined(_POSIX_SOURCE) 1003.1-1988
+ * encoded as 198808 below
+ * _POSIX_C_SOURCE == 1 1003.1-1990
+ * encoded as 199009 below
+ * _POSIX_C_SOURCE == 2 1003.2-1992 C Language Binding Option
+ * encoded as 199209 below
+ * _POSIX_C_SOURCE == 199309 1003.1b-1993
+ * (1003.1 Issue 4, Single Unix Spec v1, Unix 93)
+ * _POSIX_C_SOURCE == 199506 1003.1c-1995, 1003.1i-1995,
+ * and the omnibus ISO/IEC 9945-1: 1996
+ * (1003.1 Issue 5, Single Unix Spec v2, Unix 95)
+ * _POSIX_C_SOURCE == 200112 1003.1-2001 (1003.1 Issue 6, Unix 03)
+ * _POSIX_C_SOURCE == 200809 1003.1-2008 (1003.1 Issue 7)
+ * IEEE Std 1003.1-2017 (Rev of 1003.1-2008) is
+ * 1003.1-2008 with two TCs applied with
+ * _POSIX_C_SOURCE=200809 and _XOPEN_SOURCE=700
+ *
+ * In addition, the X/Open Portability Guide, which is now the Single UNIX
+ * Specification, defines a feature-test macro which indicates the version of
+ * that specification, and which subsumes _POSIX_C_SOURCE.
+ *
+ * Our macros begin with two underscores to avoid namespace screwage.
+ */
+
+/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
+#undef _POSIX_C_SOURCE /* Probably illegal, but beyond caring now. */
+#define _POSIX_C_SOURCE 199009
+#endif
+
+/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 199209
+#endif
+
+/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
+#ifdef _XOPEN_SOURCE
+#if _XOPEN_SOURCE - 0 >= 700
+#define __XSI_VISIBLE 700
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809
+#elif _XOPEN_SOURCE - 0 >= 600
+#define __XSI_VISIBLE 600
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200112
+#elif _XOPEN_SOURCE - 0 >= 500
+#define __XSI_VISIBLE 500
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 199506
+#endif
+#endif
+
+/*
+ * Deal with all versions of POSIX. The ordering relative to the tests above is
+ * important.
+ */
+#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
+#define _POSIX_C_SOURCE 198808
+#endif
+#ifdef _POSIX_C_SOURCE
+#if _POSIX_C_SOURCE >= 200809
+#define __POSIX_VISIBLE 200809
+#define __ISO_C_VISIBLE 1999
+#elif _POSIX_C_SOURCE >= 200112
+#define __POSIX_VISIBLE 200112
+#define __ISO_C_VISIBLE 1999
+#elif _POSIX_C_SOURCE >= 199506
+#define __POSIX_VISIBLE 199506
+#define __ISO_C_VISIBLE 1990
+#elif _POSIX_C_SOURCE >= 199309
+#define __POSIX_VISIBLE 199309
+#define __ISO_C_VISIBLE 1990
+#elif _POSIX_C_SOURCE >= 199209
+#define __POSIX_VISIBLE 199209
+#define __ISO_C_VISIBLE 1990
+#elif _POSIX_C_SOURCE >= 199009
+#define __POSIX_VISIBLE 199009
+#define __ISO_C_VISIBLE 1990
+#else
+#define __POSIX_VISIBLE 198808
+#define __ISO_C_VISIBLE 0
+#endif /* _POSIX_C_SOURCE */
+/*
+ * Both glibc and OpenBSD enable c11 features when _ISOC11_SOURCE is defined, or
+ * when compiling with -stdc=c11. A strict reading of the standard would suggest
+ * doing it only for the former. However, a strict reading also requires C99
+ * mode only, so building with C11 is already undefined. Follow glibc's and
+ * OpenBSD's lead for this non-standard configuration for maximum compatibility.
+ */
+#if _ISOC11_SOURCE || (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L)
+#undef __ISO_C_VISIBLE
+#define __ISO_C_VISIBLE 2011
+#endif
+#else
+/*-
+ * Deal with _ANSI_SOURCE:
+ * If it is defined, and no other compilation environment is explicitly
+ * requested, then define our internal feature-test macros to zero. This
+ * makes no difference to the preprocessor (undefined symbols in preprocessing
+ * expressions are defined to have value zero), but makes it more convenient for
+ * a test program to print out the values.
+ *
+ * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
+ * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
+ * environment (and in fact we will never get here).
+ */
+#if defined(_ANSI_SOURCE) /* Hide almost everything. */
+#define __POSIX_VISIBLE 0
+#define __XSI_VISIBLE 0
+#define __BSD_VISIBLE 0
+#define __ISO_C_VISIBLE 1990
+#define __EXT1_VISIBLE 0
+#elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */
+#define __POSIX_VISIBLE 0
+#define __XSI_VISIBLE 0
+#define __BSD_VISIBLE 0
+#define __ISO_C_VISIBLE 1999
+#define __EXT1_VISIBLE 0
+#elif defined(_C11_SOURCE) /* Localism to specify strict C11 env. */
+#define __POSIX_VISIBLE 0
+#define __XSI_VISIBLE 0
+#define __BSD_VISIBLE 0
+#define __ISO_C_VISIBLE 2011
+#define __EXT1_VISIBLE 0
+#else /* Default environment: show everything. */
+#define __POSIX_VISIBLE 200809
+#define __XSI_VISIBLE 700
+#define __BSD_VISIBLE 1
+#define __ISO_C_VISIBLE 2011
+#define __EXT1_VISIBLE 1
+#endif
+#endif
+
+/* User override __EXT1_VISIBLE */
+#if defined(__STDC_WANT_LIB_EXT1__)
+#undef __EXT1_VISIBLE
+#if __STDC_WANT_LIB_EXT1__
+#define __EXT1_VISIBLE 1
+#else
+#define __EXT1_VISIBLE 0
+#endif
+#endif /* __STDC_WANT_LIB_EXT1__ */
+
+/*
+ * Old versions of GCC use non-standard ARM arch symbols; acle-compat.h
+ * translates them to __ARM_ARCH and the modern feature symbols defined by ARM.
+ */
+#if defined(__arm__) && !defined(__ARM_ARCH)
+#include <machine/acle-compat.h>
+#endif
+
+/*
+ * Nullability qualifiers: currently only supported by Clang.
+ */
+#if !(defined(__clang__) && __has_feature(nullability))
+#define _Nonnull
+#define _Nullable
+#define _Null_unspecified
+#define __NULLABILITY_PRAGMA_PUSH
+#define __NULLABILITY_PRAGMA_POP
+#else
+#define __NULLABILITY_PRAGMA_PUSH _Pragma("clang diagnostic push") \
+ _Pragma("clang diagnostic ignored \"-Wnullability-completeness\"")
+#define __NULLABILITY_PRAGMA_POP _Pragma("clang diagnostic pop")
+#endif
+
+/*
+ * Type Safety Checking
+ *
+ * Clang provides additional attributes to enable checking type safety
+ * properties that cannot be enforced by the C type system.
+ */
+
+#if __has_attribute(__argument_with_type_tag__) && \
+ __has_attribute(__type_tag_for_datatype__)
+#define __arg_type_tag(arg_kind, arg_idx, type_tag_idx) \
+ __attribute__((__argument_with_type_tag__(arg_kind, arg_idx, type_tag_idx)))
+#define __datatype_type_tag(kind, type) \
+ __attribute__((__type_tag_for_datatype__(kind, type)))
+#else
+#define __arg_type_tag(arg_kind, arg_idx, type_tag_idx)
+#define __datatype_type_tag(kind, type)
+#endif
+
+/*
+ * Lock annotations.
+ *
+ * Clang provides support for doing basic thread-safety tests at
+ * compile-time, by marking which locks will/should be held when
+ * entering/leaving a functions.
+ *
+ * Furthermore, it is also possible to annotate variables and structure
+ * members to enforce that they are only accessed when certain locks are
+ * held.
+ */
+
+#if __has_extension(c_thread_safety_attributes)
+#define __lock_annotate(x) __attribute__((x))
+#else
+#define __lock_annotate(x)
+#endif
+
+/* Structure implements a lock. */
+#define __lockable __lock_annotate(lockable)
+
+/* Function acquires an exclusive or shared lock. */
+#define __locks_exclusive(...) \
+ __lock_annotate(exclusive_lock_function(__VA_ARGS__))
+#define __locks_shared(...) \
+ __lock_annotate(shared_lock_function(__VA_ARGS__))
+
+/* Function attempts to acquire an exclusive or shared lock. */
+#define __trylocks_exclusive(...) \
+ __lock_annotate(exclusive_trylock_function(__VA_ARGS__))
+#define __trylocks_shared(...) \
+ __lock_annotate(shared_trylock_function(__VA_ARGS__))
+
+/* Function releases a lock. */
+#define __unlocks(...) __lock_annotate(unlock_function(__VA_ARGS__))
+
+/* Function asserts that an exclusive or shared lock is held. */
+#define __asserts_exclusive(...) \
+ __lock_annotate(assert_exclusive_lock(__VA_ARGS__))
+#define __asserts_shared(...) \
+ __lock_annotate(assert_shared_lock(__VA_ARGS__))
+
+/* Function requires that an exclusive or shared lock is or is not held. */
+#define __requires_exclusive(...) \
+ __lock_annotate(exclusive_locks_required(__VA_ARGS__))
+#define __requires_shared(...) \
+ __lock_annotate(shared_locks_required(__VA_ARGS__))
+#define __requires_unlocked(...) \
+ __lock_annotate(locks_excluded(__VA_ARGS__))
+
+/* Function should not be analyzed. */
+#define __no_lock_analysis __lock_annotate(no_thread_safety_analysis)
+
+/*
+ * Function or variable should not be sanitized, e.g., by AddressSanitizer.
+ * GCC has the nosanitize attribute, but as a function attribute only, and
+ * warns on use as a variable attribute.
+ */
+#if __has_attribute(no_sanitize) && defined(__clang__)
+#ifdef _KERNEL
+#define __nosanitizeaddress __attribute__((no_sanitize("kernel-address")))
+#define __nosanitizememory __attribute__((no_sanitize("kernel-memory")))
+#else
+#define __nosanitizeaddress __attribute__((no_sanitize("address")))
+#define __nosanitizememory __attribute__((no_sanitize("memory")))
+#endif
+#define __nosanitizethread __attribute__((no_sanitize("thread")))
+#else
+#define __nosanitizeaddress
+#define __nosanitizememory
+#define __nosanitizethread
+#endif
+
+/* Guard variables and structure members by lock. */
+#define __guarded_by(x) __lock_annotate(guarded_by(x))
+#define __pt_guarded_by(x) __lock_annotate(pt_guarded_by(x))
+
+/* Alignment builtins for better type checking and improved code generation. */
+/* Provide fallback versions for other compilers (GCC/Clang < 10): */
+#if !__has_builtin(__builtin_is_aligned)
+#define __builtin_is_aligned(x, align) \
+ (((__uintptr_t)x & ((align) - 1)) == 0)
+#endif
+#if !__has_builtin(__builtin_align_up)
+#define __builtin_align_up(x, align) \
+ ((__typeof__(x))(((__uintptr_t)(x)+((align)-1))&(~((align)-1))))
+#endif
+#if !__has_builtin(__builtin_align_down)
+#define __builtin_align_down(x, align) \
+ ((__typeof__(x))((x)&(~((align)-1))))
+#endif
+
+#define __align_up(x, y) __builtin_align_up(x, y)
+#define __align_down(x, y) __builtin_align_down(x, y)
+#define __is_aligned(x, y) __builtin_is_aligned(x, y)
+
+#endif /* !_SYS_CDEFS_H_ */
diff --git a/include/lib/libc/time.h b/include/lib/libc/time.h
new file mode 100644
index 0000000..c1c95e5
--- /dev/null
+++ b/include/lib/libc/time.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2012-2017 Roberto E. Vargas Caballero
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+/*
+ * Portions copyright (c) 2018-2019, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef TIME_H
+#define TIME_H
+
+#include <stddef.h>
+
+typedef long int time_t;
+
+#endif /* TIME_H */