init commit

include/errno.h

@@ -0,0 +1,42 @@
+#ifndef _ELIBC_ERRNO_H
+#define _ELIBC_ERRNO_H
+
+#define EPERM     1
+#define ENOENT    2
+#define ESRCH     3
+#define EINTR     4
+#define EIO       5
+#define ENXIO     6
+#define E2BIG     7
+#define ENOEXEC   8
+#define EBADF     9
+#define ECHILD   10
+#define EAGAIN   11
+#define ENOMEM   12
+#define EACCES   13
+#define EFAULT   14
+#define EBUSY    16
+#define EEXIST   17
+#define EXDEV    18
+#define ENODEV   19
+#define ENOTDIR  20
+#define EISDIR   21
+#define EINVAL   22
+#define ENFILE   23
+#define EMFILE   24
+#define ENOTTY   25
+#define EFBIG    27
+#define ENOSPC   28
+#define ESPIPE   29
+#define EROFS    30
+#define EMLINK   31
+#define EPIPE    32
+#define EDOM     33
+#define ERANGE   34
+#define EDEADLK  35
+#define ENOSYS   38
+
+extern int *__errno_location(void);
+#define errno (*__errno_location())
+
+#endif

include/limits.h

@@ -0,0 +1,26 @@
+#ifndef _ELIBC_LIMITS_H
+#define _ELIBC_LIMITS_H
+
+#define CHAR_BIT  8
+
+#define SCHAR_MIN (-128)
+#define SCHAR_MAX  127
+#define UCHAR_MAX  255
+
+#define SHRT_MIN  (-32768)
+#define SHRT_MAX   32767
+#define USHRT_MAX  65535
+
+#define INT_MIN   (-2147483647 - 1)
+#define INT_MAX   2147483647
+#define UINT_MAX  4294967295U
+
+#define LONG_MIN  (-9223372036854775807L - 1)
+#define LONG_MAX  9223372036854775807L
+#define ULONG_MAX 18446744073709551615UL
+
+#define LLONG_MIN (-9223372036854775807LL - 1)
+#define LLONG_MAX 9223372036854775807LL
+#define ULLONG_MAX 18446744073709551615ULL
+
+#endif

include/stdarg.h

@@ -0,0 +1,10 @@
+#ifndef _ELIBC_STDARG_H
+#define _ELIBC_STDARG_H
+
+typedef __builtin_va_list va_list;
+#define va_start(v, l)    __builtin_va_start(v, l)
+#define va_end(v)         __builtin_va_end(v)
+#define va_arg(v, t)      __builtin_va_arg(v, t)
+#define va_copy(d, s)     __builtin_va_copy(d, s)
+
+#endif

include/stdbool.h

@@ -0,0 +1,9 @@
+#ifndef _ELIBC_STDBOOL_H
+#define _ELIBC_STDBOOL_H
+
+#define bool  _Bool
+#define true  1
+#define false 0
+#define __bool_true_false_are_defined 1
+
+#endif

include/stddef.h

@@ -0,0 +1,11 @@
+#ifndef _ELIBC_STDDEF_H
+#define _ELIBC_STDDEF_H
+
+typedef __SIZE_TYPE__ size_t;
+typedef __PTRDIFF_TYPE__ ptrdiff_t;
+typedef __WCHAR_TYPE__ wchar_t;
+
+#define NULL ((void *)0)
+#define offsetof(type, member) __builtin_offsetof(type, member)
+
+#endif

include/stdint.h

@@ -0,0 +1,18 @@
+#ifndef _ELIBC_STDINT_H
+#define _ELIBC_STDINT_H
+
+typedef signed char   int8_t;
+typedef short         int16_t;
+typedef int           int32_t;
+typedef long long     int64_t;
+
+typedef unsigned char       uint8_t;
+typedef unsigned short      uint16_t;
+typedef unsigned int        uint32_t;
+typedef unsigned long long  uint64_t;
+
+typedef __SIZE_TYPE__    size_t;
+typedef __UINTPTR_TYPE__ uintptr_t;
+typedef __INTPTR_TYPE__  intptr_t;
+
+#endif

include/stdlib.h

@@ -0,0 +1,18 @@
+#ifndef _ELIBC_STDLIB_H
+#define _ELIBC_STDLIB_H
+
+#include <stddef.h>
+
+void  *malloc(size_t);
+void  *calloc(size_t, size_t);
+void  *realloc(void *, size_t);
+void   free(void *);
+
+void   exit(int) __attribute__((noreturn));
+void   abort(void) __attribute__((noreturn));
+
+int    atoi(const char *);
+long   atol(const char *);
+long long atoll(const char *);
+
+#endif

include/string.h

@@ -0,0 +1,21 @@
+#ifndef _ELIBC_STRING_H
+#define _ELIBC_STRING_H
+
+#include <stddef.h>
+
+void *memcpy(void *restrict, const void *restrict, size_t);
+void *memmove(void *, const void *, size_t);
+void *memset(void *, int, size_t);
+int   memcmp(const void *, const void *, size_t);
+void *memchr(const void *, int, size_t);
+
+size_t strlen(const char *);
+int    strcmp(const char *, const char *);
+int    strncmp(const char *, const char *, size_t);
+char  *strcpy(char *restrict, const char *restrict);
+char  *strncpy(char *restrict, const char *restrict, size_t);
+char  *strcat(char *restrict, const char *restrict);
+char  *strchr(const char *, int);
+char  *strrchr(const char *, int);
+
+#endif