newlib-cygwin/newlib/libc/sys/sysnecv850/read.c

#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "sys/syscall.h"

extern int errno;

int __trap0 (int function, int p1, int p2, int p3);

#define TRAP0(f, p1, p2, p3) __trap0(f, (int)(p1), (int)(p2), (int)(p3))

_read (int file,
       char *ptr,
       int len)
{
  return TRAP0 (SYS_read, file, ptr, len);
}
import newlib-2000-02-17 snapshot 2000-02-18 03:39:52 +08:00			`#include <_ansi.h>`
			`#include <sys/types.h>`
			`#include <sys/stat.h>`
			`#include "sys/syscall.h"`

Avoid using common symbols in v850 libgloss I've had this lying around for probably a year or two at this point. It just changes all the instance of "errno" from a common symbol to an extern. I can't offhand recall where the actual definition is, but it certainly exists in the generic code. 2022-03-20 08:01:33 +08:00			`extern int errno;`
import newlib-2000-02-17 snapshot 2000-02-18 03:39:52 +08:00
			`int __trap0 (int function, int p1, int p2, int p3);`

			`#define TRAP0(f, p1, p2, p3) __trap0(f, (int)(p1), (int)(p2), (int)(p3))`

			`_read (int file,`
			`char *ptr,`
			`int len)`
			`{`
			`return TRAP0 (SYS_read, file, ptr, len);`
			`}`