lib: establish Zircon libc++ and KTL foundation

1 files changed, 278 insertions, 0 deletions

diff --git a/lib/libc/include/stdint.h b/lib/libc/include/stdint.h
new file mode 100644
index 0000000..3cbdfeb
--- /dev/null
+++ b/lib/libc/include/stdint.h
@@ -0,0 +1,278 @@
+// Copyright 2016 The Fuchsia Authors
+//
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT
+
+#ifndef ZIRCON_KERNEL_LIB_LIBC_INCLUDE_STDINT_H_
+#define ZIRCON_KERNEL_LIB_LIBC_INCLUDE_STDINT_H_
+
+// The compiler predefines macros __<type>_TYPE__, __<type>_MAX__,
+// and __<type>_C for the various types.  All we have to do here is
+// define the public names based on those macros.
+
+// Clang predefines macros __<type>_FMT<letter>__ for each type,
+// with <letter> being i and for signed types, and o, u, x, and X
+// for unsigned types.  That lets <inttypes.h> do its work without
+// any special knowledge of what the underlying types are.
+// Unfortunately, GCC does not define these macros.  To keep all
+// knowledge of the compiler's choices isolated to this file, define
+// them here for GCC so that <inttypes.h> can use them unconditionally.
+#ifndef __INTMAX_FMTd__
+
+#define __INT8_FMT_MODIFIER__ "hh"
+#define __INT16_FMT_MODIFIER__ "h"
+#ifdef _LP64
+#define __INT32_FMT_MODIFIER__ ""
+#else
+#define __INT32_FMT_MODIFIER__ "l"
+#endif
+
+#define __INT_LEAST8_FMT_MODIFIER__ __INT8_FMT_MODIFIER__
+#define __INT_LEAST16_FMT_MODIFIER__ __INT16_FMT_MODIFIER__
+#define __INT_LEAST32_FMT_MODIFIER__ __INT32_FMT_MODIFIER__
+#define __INT_LEAST64_FMT_MODIFIER__ __INT64_FMT_MODIFIER__
+
+// The *-elf and arm-eabi GCC targets use 'int' for the fast{8,16,32}
+// types. On LP64 systems, 'long' is used for the fast64 type, and
+// 'long long' on non-LP64 systems.
+#define __INT_FAST8_FMT_MODIFIER__ ""
+#define __INT_FAST16_FMT_MODIFIER__ ""
+#define __INT_FAST32_FMT_MODIFIER__ ""
+#if _LP64
+#define __INT_FAST64_FMT_MODIFIER__ "l"
+#else
+#define __INT_FAST64_FMT_MODIFIER__ "ll"
+#endif
+
+// On machines where 'long' types are 64 bits, the compiler defines
+// __INT64_TYPE__ et al using 'long', not 'long long', though both are
+// 64-bit types.
+#ifdef _LP64
+#define __INT64_FMT_MODIFIER__ "l"
+#define __INTPTR_FMT_MODIFIER__ "l"
+#else
+#define __INT64_FMT_MODIFIER__ "ll"
+#define __INTPTR_FMT_MODIFIER__ ""
+#endif
+
+#define __INTMAX_FMT_MODIFIER__ __INT64_FMT_MODIFIER__
+
+#define __INTMAX_FMTd__ __INTMAX_FMT_MODIFIER__ "d"
+#define __INTMAX_FMTi__ __INTMAX_FMT_MODIFIER__ "i"
+#define __UINTMAX_FMTo__ __INTMAX_FMT_MODIFIER__ "o"
+#define __UINTMAX_FMTu__ __INTMAX_FMT_MODIFIER__ "u"
+#define __UINTMAX_FMTx__ __INTMAX_FMT_MODIFIER__ "x"
+#define __UINTMAX_FMTX__ __INTMAX_FMT_MODIFIER__ "X"
+#define __INTPTR_FMTd__ __INTPTR_FMT_MODIFIER__ "d"
+#define __INTPTR_FMTi__ __INTPTR_FMT_MODIFIER__ "i"
+#define __UINTPTR_FMTo__ __INTPTR_FMT_MODIFIER__ "o"
+#define __UINTPTR_FMTu__ __INTPTR_FMT_MODIFIER__ "u"
+#define __UINTPTR_FMTx__ __INTPTR_FMT_MODIFIER__ "x"
+#define __UINTPTR_FMTX__ __INTPTR_FMT_MODIFIER__ "X"
+#define __INT8_FMTd__ __INT8_FMT_MODIFIER__ "d"
+#define __INT8_FMTi__ __INT8_FMT_MODIFIER__ "i"
+#define __INT16_FMTd__ __INT16_FMT_MODIFIER__ "d"
+#define __INT16_FMTi__ __INT16_FMT_MODIFIER__ "i"
+#define __INT32_FMTd__ __INT32_FMT_MODIFIER__ "d"
+#define __INT32_FMTi__ __INT32_FMT_MODIFIER__ "i"
+#define __INT64_FMTd__ __INT64_FMT_MODIFIER__ "d"
+#define __INT64_FMTi__ __INT64_FMT_MODIFIER__ "i"
+#define __UINT8_FMTo__ __INT8_FMT_MODIFIER__ "o"
+#define __UINT8_FMTu__ __INT8_FMT_MODIFIER__ "u"
+#define __UINT8_FMTx__ __INT8_FMT_MODIFIER__ "x"
+#define __UINT8_FMTX__ __INT8_FMT_MODIFIER__ "X"
+#define __UINT16_FMTo__ __INT16_FMT_MODIFIER__ "o"
+#define __UINT16_FMTu__ __INT16_FMT_MODIFIER__ "u"
+#define __UINT16_FMTx__ __INT16_FMT_MODIFIER__ "x"
+#define __UINT16_FMTX__ __INT16_FMT_MODIFIER__ "X"
+#define __UINT32_FMTo__ __INT32_FMT_MODIFIER__ "o"
+#define __UINT32_FMTu__ __INT32_FMT_MODIFIER__ "u"
+#define __UINT32_FMTx__ __INT32_FMT_MODIFIER__ "x"
+#define __UINT32_FMTX__ __INT32_FMT_MODIFIER__ "X"
+#define __UINT64_FMTo__ __INT64_FMT_MODIFIER__ "o"
+#define __UINT64_FMTu__ __INT64_FMT_MODIFIER__ "u"
+#define __UINT64_FMTx__ __INT64_FMT_MODIFIER__ "x"
+#define __UINT64_FMTX__ __INT64_FMT_MODIFIER__ "X"
+#define __INT_LEAST8_FMTd__ __INT_LEAST8_FMT_MODIFIER__ "d"
+#define __INT_LEAST8_FMTi__ __INT_LEAST8_FMT_MODIFIER__ "i"
+#define __UINT_LEAST8_FMTo__ __INT_LEAST8_FMT_MODIFIER__ "o"
+#define __UINT_LEAST8_FMTu__ __INT_LEAST8_FMT_MODIFIER__ "u"
+#define __UINT_LEAST8_FMTx__ __INT_LEAST8_FMT_MODIFIER__ "x"
+#define __UINT_LEAST8_FMTX__ __INT_LEAST8_FMT_MODIFIER__ "X"
+#define __INT_LEAST16_FMTd__ __INT_LEAST16_FMT_MODIFIER__ "d"
+#define __INT_LEAST16_FMTi__ __INT_LEAST16_FMT_MODIFIER__ "i"
+#define __UINT_LEAST16_FMTo__ __INT_LEAST16_FMT_MODIFIER__ "o"
+#define __UINT_LEAST16_FMTu__ __INT_LEAST16_FMT_MODIFIER__ "u"
+#define __UINT_LEAST16_FMTx__ __INT_LEAST16_FMT_MODIFIER__ "x"
+#define __UINT_LEAST16_FMTX__ __INT_LEAST16_FMT_MODIFIER__ "X"
+#define __INT_LEAST32_FMTd__ __INT_LEAST32_FMT_MODIFIER__ "d"
+#define __INT_LEAST32_FMTi__ __INT_LEAST32_FMT_MODIFIER__ "i"
+#define __UINT_LEAST32_FMTo__ __INT_LEAST32_FMT_MODIFIER__ "o"
+#define __UINT_LEAST32_FMTu__ __INT_LEAST32_FMT_MODIFIER__ "u"
+#define __UINT_LEAST32_FMTx__ __INT_LEAST32_FMT_MODIFIER__ "x"
+#define __UINT_LEAST32_FMTX__ __INT_LEAST32_FMT_MODIFIER__ "X"
+#define __INT_LEAST64_FMTd__ __INT_LEAST64_FMT_MODIFIER__ "d"
+#define __INT_LEAST64_FMTi__ __INT_LEAST64_FMT_MODIFIER__ "i"
+#define __UINT_LEAST64_FMTo__ __INT_LEAST64_FMT_MODIFIER__ "o"
+#define __UINT_LEAST64_FMTu__ __INT_LEAST64_FMT_MODIFIER__ "u"
+#define __UINT_LEAST64_FMTx__ __INT_LEAST64_FMT_MODIFIER__ "x"
+#define __UINT_LEAST64_FMTX__ __INT_LEAST64_FMT_MODIFIER__ "X"
+#define __INT_FAST8_FMTd__ __INT_FAST8_FMT_MODIFIER__ "d"
+#define __INT_FAST8_FMTi__ __INT_FAST8_FMT_MODIFIER__ "i"
+#define __UINT_FAST8_FMTo__ __INT_FAST8_FMT_MODIFIER__ "o"
+#define __UINT_FAST8_FMTu__ __INT_FAST8_FMT_MODIFIER__ "u"
+#define __UINT_FAST8_FMTx__ __INT_FAST8_FMT_MODIFIER__ "x"
+#define __UINT_FAST8_FMTX__ __INT_FAST8_FMT_MODIFIER__ "X"
+#define __INT_FAST16_FMTd__ __INT_FAST16_FMT_MODIFIER__ "d"
+#define __INT_FAST16_FMTi__ __INT_FAST16_FMT_MODIFIER__ "i"
+#define __UINT_FAST16_FMTo__ __INT_FAST16_FMT_MODIFIER__ "o"
+#define __UINT_FAST16_FMTu__ __INT_FAST16_FMT_MODIFIER__ "u"
+#define __UINT_FAST16_FMTx__ __INT_FAST16_FMT_MODIFIER__ "x"
+#define __UINT_FAST16_FMTX__ __INT_FAST16_FMT_MODIFIER__ "X"
+#define __INT_FAST32_FMTd__ __INT_FAST32_FMT_MODIFIER__ "d"
+#define __INT_FAST32_FMTi__ __INT_FAST32_FMT_MODIFIER__ "i"
+#define __UINT_FAST32_FMTo__ __INT_FAST32_FMT_MODIFIER__ "o"
+#define __UINT_FAST32_FMTu__ __INT_FAST32_FMT_MODIFIER__ "u"
+#define __UINT_FAST32_FMTx__ __INT_FAST32_FMT_MODIFIER__ "x"
+#define __UINT_FAST32_FMTX__ __INT_FAST32_FMT_MODIFIER__ "X"
+#define __INT_FAST64_FMTd__ __INT_FAST64_FMT_MODIFIER__ "d"
+#define __INT_FAST64_FMTi__ __INT_FAST64_FMT_MODIFIER__ "i"
+#define __UINT_FAST64_FMTo__ __INT_FAST64_FMT_MODIFIER__ "o"
+#define __UINT_FAST64_FMTu__ __INT_FAST64_FMT_MODIFIER__ "u"
+#define __UINT_FAST64_FMTx__ __INT_FAST64_FMT_MODIFIER__ "x"
+#define __UINT_FAST64_FMTX__ __INT_FAST64_FMT_MODIFIER__ "X"
+
+#endif
+
+typedef __UINT8_TYPE__ uint8_t;
+typedef __UINT16_TYPE__ uint16_t;
+typedef __UINT32_TYPE__ uint32_t;
+typedef __UINT64_TYPE__ uint64_t;
+typedef __INT8_TYPE__ int8_t;
+typedef __INT16_TYPE__ int16_t;
+typedef __INT32_TYPE__ int32_t;
+typedef __INT64_TYPE__ int64_t;
+
+#define UINT8_MAX __UINT8_MAX__
+#define UINT16_MAX __UINT16_MAX__
+#define UINT32_MAX __UINT32_MAX__
+#define UINT64_MAX __UINT64_MAX__
+
+#define INT8_MAX __INT8_MAX__
+#define INT16_MAX __INT16_MAX__
+#define INT32_MAX __INT32_MAX__
+#define INT64_MAX __INT64_MAX__
+
+#define INT8_MIN (-INT8_MAX - 1)
+#define INT16_MIN (-INT16_MAX - 1)
+#define INT32_MIN (-INT32_MAX - 1)
+#define INT64_MIN (-INT64_MAX - 1)
+
+typedef __UINT_LEAST8_TYPE__ uint_least8_t;
+typedef __UINT_LEAST16_TYPE__ uint_least16_t;
+typedef __UINT_LEAST32_TYPE__ uint_least32_t;
+typedef __UINT_LEAST64_TYPE__ uint_least64_t;
+typedef __INT_LEAST8_TYPE__ int_least8_t;
+typedef __INT_LEAST16_TYPE__ int_least16_t;
+typedef __INT_LEAST32_TYPE__ int_least32_t;
+typedef __INT_LEAST64_TYPE__ int_least64_t;
+
+#define UINT_LEAST8_MAX __UINT_LEAST8_MAX__
+#define UINT_LEAST16_MAX __UINT_LEAST16_MAX__
+#define UINT_LEAST32_MAX __UINT_LEAST32_MAX__
+#define UINT_LEAST64_MAX __UINT_LEAST64_MAX__
+
+#define INT_LEAST8_MAX __INT_LEAST8_MAX__
+#define INT_LEAST16_MAX __INT_LEAST16_MAX__
+#define INT_LEAST32_MAX __INT_LEAST32_MAX__
+#define INT_LEAST64_MAX __INT_LEAST64_MAX__
+
+#define INT_LEAST8_MIN (-INT_LEAST8_MAX - 1)
+#define INT_LEAST16_MIN (-INT_LEAST16_MAX - 1)
+#define INT_LEAST32_MIN (-INT_LEAST32_MAX - 1)
+#define INT_LEAST64_MIN (-INT_LEAST64_MAX - 1)
+
+typedef __UINT_FAST8_TYPE__ uint_fast8_t;
+typedef __UINT_FAST16_TYPE__ uint_fast16_t;
+typedef __UINT_FAST32_TYPE__ uint_fast32_t;
+typedef __UINT_FAST64_TYPE__ uint_fast64_t;
+typedef __INT_FAST8_TYPE__ int_fast8_t;
+typedef __INT_FAST16_TYPE__ int_fast16_t;
+typedef __INT_FAST32_TYPE__ int_fast32_t;
+typedef __INT_FAST64_TYPE__ int_fast64_t;
+
+#define UINT_FAST8_MAX __UINT_FAST8_MAX__
+#define UINT_FAST16_MAX __UINT_FAST16_MAX__
+#define UINT_FAST32_MAX __UINT_FAST32_MAX__
+#define UINT_FAST64_MAX __UINT_FAST64_MAX__
+
+#define INT_FAST8_MAX __INT_FAST8_MAX__
+#define INT_FAST16_MAX __INT_FAST16_MAX__
+#define INT_FAST32_MAX __INT_FAST32_MAX__
+#define INT_FAST64_MAX __INT_FAST64_MAX__
+
+#define INT_FAST8_MIN (-INT_FAST8_MAX - 1)
+#define INT_FAST16_MIN (-INT_FAST16_MAX - 1)
+#define INT_FAST32_MIN (-INT_FAST32_MAX - 1)
+#define INT_FAST64_MIN (-INT_FAST64_MAX - 1)
+
+typedef __INTPTR_TYPE__ intptr_t;
+typedef __UINTPTR_TYPE__ uintptr_t;
+
+#define INTPTR_MAX __INTPTR_MAX__
+#define INTPTR_MIN (-INTPTR_MAX - 1)
+#define UINTPTR_MAX __UINTPTR_MAX__
+
+typedef __INTMAX_TYPE__ intmax_t;
+typedef __UINTMAX_TYPE__ uintmax_t;
+
+#define INTMAX_MAX __INTMAX_MAX__
+#define INTMAX_MIN (-INTMAX_MAX - 1)
+#define UINTMAX_MAX __UINTMAX_MAX__
+
+#define SIZE_MAX __SIZE_MAX__
+
+// GCC defines __<type>INT<size>_C macros which append the correct suffix
+// to an (un)signed integer literal, with <size> being one of 8, 16, 32, 64
+// and MAX, and type being U for unsigned types. The standard stdint.h macros
+// with the same names without the leading __ could be implemented in terms of
+// these macros.
+//
+// Clang predefines macros __<type>INT<size>_C_SUFFIX__ which expand to the
+// suffix itself. We define the standard stdint.h macros in terms of the GCC
+// variants and for Clang we define their equivalents.
+#ifndef __INTMAX_C
+
+#define __int_c_join(a, b) a##b
+#define __int_c(v, suffix) __int_c_join(v, suffix)
+
+#define __INT8_C(c) __int_c(c, __INT8_C_SUFFIX__)
+#define __INT16_C(c) __int_c(c, __INT16_C_SUFFIX__)
+#define __INT32_C(c) __int_c(c, __INT32_C_SUFFIX__)
+#define __INT64_C(c) __int_c(c, __INT64_C_SUFFIX__)
+
+#define __UINT8_C(c) __int_c(c, __UINT8_C_SUFFIX__)
+#define __UINT16_C(c) __int_c(c, __UINT16_C_SUFFIX__)
+#define __UINT32_C(c) __int_c(c, __UINT32_C_SUFFIX__)
+#define __UINT64_C(c) __int_c(c, __UINT64_C_SUFFIX__)
+
+#define __INTMAX_C(c) __int_c(c, __INTMAX_C_SUFFIX__)
+#define __UINTMAX_C(c) __int_c(c, __UINTMAX_C_SUFFIX__)
+
+#endif
+
+#define INT8_C(c) __INT8_C(c)
+#define INT16_C(c) __INT16_C(c)
+#define INT32_C(c) __INT32_C(c)
+#define INT64_C(c) __INT64_C(c)
+
+#define UINT8_C(c) __UINT8_C(c)
+#define UINT16_C(c) __UINT16_C(c)
+#define UINT32_C(c) __UINT32_C(c)
+#define UINT64_C(c) __UINT64_C(c)
+
+#define INTMAX_C(c) __INTMAX_C(c)
+#define UINTMAX_C(c) __UINTMAX_C(c)
+
+#endif  // ZIRCON_KERNEL_LIB_LIBC_INCLUDE_STDINT_H_