user: implement mlibc as the libc, finally.

It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

ext2_root/usr/include/limits.h

@@ -0,0 +1,123 @@
+#ifndef _LIMITS_H
+#define _LIMITS_H
+
+#define CHAR_BIT 8
+
+#ifndef MB_LEN_MAX
+# define MB_LEN_MAX 4
+#endif
+
+#ifdef LONG_MAX
+# ifdef LONG_MAX == INT32_MAX
+#  define LONG_BIT 32
+# else
+/* Safe assumption */
+#  define LONG_BIT 64
+# endif
+#elif defined __LONG_MAX__
+# if __LONG_MAX__ == INT32_MAX
+#  define LONG_BIT 32
+# else
+/* Safe assumption */
+#  define LONG_BIT 64
+# endif
+#else
+# error "Unsupported configuration, please define either LONG_MAX or __LONG_MAX__"
+#endif
+
+#undef SCHAR_MIN
+#undef SCHAR_MAX
+#undef CHAR_MIN
+#undef CHAR_MAX
+#undef UCHAR_MAX
+#undef SHRT_MIN
+#undef SHRT_MAX
+#undef USHRT_MAX
+#undef INT_MIN
+#undef INT_MAX
+#undef UINT_MAX
+#undef LONG_MIN
+#undef LONG_MAX
+#undef ULONG_MAX
+#undef LLONG_MIN
+#undef LLONG_MAX
+#undef ULLONG_MAX
+
+#define SCHAR_MIN (-__SCHAR_MAX__ - 1)
+#define SCHAR_MAX __SCHAR_MAX__
+#if __SCHAR_MAX__ == __INT_MAX__
+# define UCHAR_MAX (__SCHAR_MAX__ * 2U + 1U)
+#else
+# define UCHAR_MAX (__SCHAR_MAX__ * 2 + 1)
+#endif
+
+#ifdef __CHAR_UNSIGNED__
+# define CHAR_MAX UCHAR_MAX
+# if __SCHAR_MAX__ == __INT_MAX__
+#  define CHAR_MIN 0U
+# else
+#  define CHAR_MIN 0
+# endif
+#else
+# define CHAR_MAX SCHAR_MAX
+# define CHAR_MIN SCHAR_MIN
+#endif
+
+#define SHRT_MIN (-__SHRT_MAX__ - 1)
+#define SHRT_MAX __SHRT_MAX__
+#if __SHRT_MAX__ == __INT_MAX__
+# define USHRT_MAX (__SHRT_MAX__ * 2U + 1U)
+#else
+# define USHRT_MAX (__SHRT_MAX__ * 2 + 1)
+#endif
+
+#define INT_MIN (-__INT_MAX__ - 1)
+#define INT_MAX __INT_MAX__
+#define UINT_MAX (__INT_MAX__ * 2U + 1U)
+
+#define LONG_MIN (-__LONG_MAX__ - 1L)
+#define LONG_MAX __LONG_MAX__
+#define ULONG_MAX (__LONG_MAX__ * 2UL + 1UL)
+
+#define LLONG_MIN (-__LONG_LONG_MAX__ - 1LL)
+#define LLONG_MAX __LONG_LONG_MAX__
+#define ULLONG_MAX (__LONG_LONG_MAX__ * 2ULL + 1ULL)
+
+#define NAME_MAX 255
+#define PATH_MAX 4096
+#define LINE_MAX 4096
+#define PIPE_BUF 4096
+
+#define CHARCLASS_NAME_MAX 14
+#define RE_DUP_MAX 255
+
+#if !defined(NGROUPS_MAX)
+/* This value is a guaranteed minimum, get the current maximum from sysconf */
+#define NGROUPS_MAX 8
+#endif /* !defined(NGROUPS_MAX) */
+
+/* POSIX states 9 is the minimum for NL_ARGMAX */
+#define NL_ARGMAX 9
+
+#if INTPTR_MAX == INT64_MAX
+# define SSIZE_MAX LONG_MAX
+#elif INTPTR_MAX == INT32_MAX
+# define SSIZE_MAX INT_MAX
+#endif
+
+#define _POSIX_ARG_MAX 4096
+#define _POSIX_OPEN_MAX 16
+#define _POSIX_HOST_NAME_MAX 255
+#define _POSIX_NAME_MAX 14
+#define _POSIX_TZNAME_MAX 6
+#define _XOPEN_NAME_MAX 255
+
+/* This value is a guaranteed minimum, get the current maximum from sysconf */
+#define TZNAME_MAX _POSIX_TZNAME_MAX
+
+#define PTHREAD_STACK_MIN 16384
+#define PTHREAD_KEYS_MAX 1024
+
+#include <abi-bits/limits.h>
+
+#endif /* _LIMITS_H */