player/Project/Src/lib/libc.h

#ifndef libc_h__
#define libc_h__



// <20><><EFBFBD><EFBFBD><EFBFBD>豸<EFBFBD>ļ<EFBFBD>
typedef struct
{
  const char *name;
  int (*open)(void);
  int (*close)(void);
  int (*putc)(int);
  int (*getc)(void);
  int (*write)(const void *,int);
  int (*read)(void *,int);
  
}libc_device_file;


// ʹ<><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><CABC>
#define extern_device(name_,putc_,getc_,write_,read_)\
  const char __libc_##name_[] __attribute__((section(".name"))) = #name_;\
  __attribute__((used,section(".libc_dev"))) const libc_device_file __libc_dev_##name_ =\
  {\
    .name=__libc_##name_,\
    .putc=putc_,\
    .getc=getc_,\
    .write=write_,\
    .read=read_,\
  };
  
  
// ʹ<><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><CABC>,<2C><><EFBFBD><EFBFBD><EFBFBD>򿪹رպ<D8B1><D5BA><EFBFBD>
#define extern_device2(name_,open_,close_,putc_,getc_,write_,read_)\
  const char __libc_##name_[] __attribute__((section(".name"))) = #name_;\
  __attribute__((used,section(".libc_dev"))) const libc_device_file __libc_dev_##name_ =\
  {\
    .name=__libc_##name_,\
    .open=open_,\
    .close=close_,\
    .putc=putc_,\
    .getc=getc_,\
    .write=write_,\
    .read=read_,\
  };


#define dev(name_) __libc_dev_##name_



const libc_device_file *libc_find_dev(const char *name);







#endif