Merge pull request #7 from linshire/add_some_function

添加了一些函数，并在qemu-virt64-riscv上验证

arch/riscv64/typedef.h

@@ -0,0 +1,31 @@
+#ifndef __TYPEDEF_H__
+#define __TYPEDEF_H__
+
+#define NULL 0
+typedef unsigned long long     size_t;
+typedef unsigned char          uint8_t;                                               
+typedef unsigned short int     uint16_t;                                             
+typedef unsigned int           uint32_t;                                         
+typedef unsigned long long     uint64_t;                                           
+
+typedef signed char            int8_t;                                              
+typedef signed short int       int16_t;                                     
+typedef signed int             int32_t;                                           
+typedef signed long long       int64_t;                                              
+
+typedef volatile uint8_t       vuint8_t;                                       
+typedef volatile uint16_t      vuint16_t;                                 
+typedef volatile uint32_t      vuint32_t;                                    
+typedef volatile uint64_t      vuint64_t;                                 
+
+typedef volatile int8_t        vint8_t;                                         
+typedef volatile int16_t       vint16_t;
+typedef volatile int32_t       vint32_t;
+typedef volatile int64_t       vint64_t;
+
+typedef long		           _fpos_t;
+
+typedef int64_t               intmax_t;
+typedef uint64_t              uintmax_t;
+
+#endif

include/stdarg.h

@@ -1,10 +1,9 @@
 #ifndef __STDARG_H__
 #define __STDARG_H__
 
-#define va_list        __builtin_va_list 
-#define va_start(v,l)  __builtin_va_start(v,l)
-#define va_end(v)      __builtin_va_end(v)
-#define va_arg(v,l)    __builtin_va_arg(v,l)
-#define va_copy(d,s)   __builtin_va_copy(d,s)
-
+#define va_list     __builtin_va_list
+#define va_start    __builtin_va_start
+#define va_end      __builtin_va_end
+#define va_arg      __builtin_va_arg
+#define va_copy     __builtin_va_copy
 #endif

include/stdio.h

@@ -1,6 +1,28 @@
 #ifndef __STDIO_H__
 #define __STDIO_H__
 
+#include <typedef.h>
+
+#define EOF (-1)
+
+struct __sbuf {
+    unsigned char *_base;
+    int _size;
+};
+
+typedef struct _iobuf
+{
+  unsigned char *_p;    /* current position in (some) buffer */
+  int   _r;             /* read space left for getc() */
+  int   _w;             /* write space left for putc() */
+  short _flags;         /* flags, below; this FILE is free if 0 */
+  short _file;          /* fileno, if Unix descriptor, else -1 */
+  struct __sbuf _bf;    /* the buffer (at least 1 byte, if !NULL) */
+  int   _lbfsize;       /* 0 or -_bf._size, for inline putc */
+} FILE;
+
+typedef _fpos_t     fpos_t;
+
 #define ZEROPAD     (1 << 0)    /* pad with zero */
 #define SIGN        (1 << 1)    /* unsigned/signed long */
 #define PLUS        (1 << 2)    /* show plus */
@@ -9,5 +31,13 @@
 #define SPECIAL     (1 << 5)    /* 0x */
 #define LARGE       (1 << 6)    /* use 'ABCDEF' instead of 'abcdef' */
 
-extern int print(const char* str, ...);
-#endif /*#ifndef _STDIO_H_*/ 
+#define SEEK_CUR     0x01
+#define SEEK_END     0x02
+#define SEEK_SET     0x03
+
+int printf(const char *format, ...);
+int vprintf(const char *format, va_list arg);
+int fprintf(FILE *stream, const char *format, ...);
+int vfprintf(FILE *stream, const char *format, va_list arg);
+
+#endif /*#ifndef _STDIO_H_*/

include/string.h

@@ -0,0 +1,15 @@
+#ifndef __STRING_H_
+#define __STRING_H_
+
+#include <typedef.h>
+
+size_t strlen(const char *s);
+
+
+
+
+
+
+
+
+#endif