1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  /* { dg-final { scan-assembler "\\\.ifnc \\\$r9-\\\$r10-\\\$r11-\\\$r12" } } */
       4  
       5  /* Sanity check for asm register operands in syscall failed for
       6     cris-axis-linux-gnu due to a regmove bug.
       7     Hans-Peter Nilsson <hp@axis.com>.  */
       8  
       9  extern void lseek64 (int, long long, int);
      10  extern int *__errno_location (void);
      11  struct dirent64
      12  {
      13    long long d_off;
      14    unsigned short int d_reclen;
      15    char d_name[256];
      16  };
      17  struct kernel_dirent64
      18  {   
      19    long long d_off;
      20    unsigned short d_reclen;
      21    char d_name[256];
      22  };
      23  
      24  static inline int __attribute__ ((__always_inline__))
      25  __syscall_getdents64 (int fd, char * dirp, unsigned count)
      26  {
      27    register unsigned long __sys_res asm ("r10");
      28    register unsigned long __r10 __asm__ ("r10") = (unsigned long) fd;
      29    register unsigned long __r11 __asm__ ("r11") = (unsigned long) dirp;
      30    register unsigned long __r12 __asm__ ("r12") = (unsigned long) count;
      31    register unsigned long __callno asm ("r9") = (220);
      32    asm volatile (".ifnc %1-%0-%3-%4,$r9-$r10-$r11-$r12\n\t"
      33  		".err\n\t"
      34  		".endif\n\t"
      35  		"break 13"
      36  		: "=r" (__sys_res)
      37  		: "r" (__callno), "0" (__r10), "r" (__r11), "r" (__r12)
      38  		: "memory");
      39    if (__sys_res >= (unsigned long) -4096)
      40      {
      41        (*__errno_location ()) = - __sys_res;
      42        __sys_res = -1;
      43      }
      44    return __sys_res;
      45  }
      46  
      47  int
      48  __getdents64 (int fd, char *buf, unsigned nbytes)
      49  {   
      50    struct dirent64 *dp;
      51    long long last_offset = -1;
      52    int retval;
      53    struct kernel_dirent64 *skdp, *kdp;
      54    dp = (struct dirent64 *) buf;
      55    skdp = kdp = __builtin_alloca (nbytes);
      56    retval = __syscall_getdents64(fd, (char *)kdp, nbytes);
      57    if (retval == -1)
      58      return -1;
      59    while ((char *) kdp < (char *) skdp + retval)
      60      {
      61        if ((char *) dp > buf + nbytes)
      62  	{
      63  	  lseek64(fd, last_offset, 0);
      64  	  break;
      65  	}
      66        last_offset = kdp->d_off;
      67        __builtin_memcpy (dp->d_name, kdp->d_name, kdp->d_reclen - 10);
      68        dp = (struct dirent64 *) ((char *) dp + sizeof (*dp));
      69        kdp = (struct kernel_dirent64 *) (((char *) kdp) + kdp->d_reclen);
      70      }
      71  
      72    return (char *) dp - buf;
      73  }