File: __open.c

package info (click to toggle)
libc-sparc 5.3.12-3
  • links: PTS
  • area: main
  • in suites: potato, slink
  • size: 17,608 kB
  • ctags: 44,718
  • sloc: ansic: 163,548; asm: 5,080; makefile: 3,340; lex: 521; sh: 439; yacc: 401; awk: 28
file content (28 lines) | stat: -rw-r--r-- 567 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
#include <fcntl.h>
#include <errno.h>
#include <sys/syscall.h>
#include <stdarg.h>

int
__open(const char * filename, int flag, ...)
{
	int res;
	register int d0 asm ("%d0");
	va_list arg;

	va_start(arg,flag);
	__asm__("movel %2,%/d1\n\t"
                "movel %3,%/d2\n\t"
                "movel %4,%/d3\n\t"
                "trap #0\n\t"
		:"=g" (d0)
		:"0" (SYS_open),"g" (filename),"g" (flag),
                 "g" (va_arg(arg,int))
                : "%d0", "%d1", "%d2", "%d3");
	res = d0;
	if (res>=0)
		return res;
	errno = -res;
	va_end(arg);
	return -1;
}