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* simops (OP_10007E0): Update errno handling as most traps

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do not invoke the host's functionality directly.  Invoke
	sim_io_stat() instead of stat() for implementing TARGET_SYS_stat.
	Implement TARGET_SYS_fstat, TARGET_SYS_rename, and TARGET_SYS_unlink.
This commit is contained in:
Kevin Buettner 2011-03-21 22:05:56 +00:00
parent 7e12ba9e7a
commit d0f0baa272
2 changed files with 88 additions and 3 deletions
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7
sim/v850/ChangeLog
View File

@ -1,3 +1,10 @@
2011-03-21 Kevin Buettner <kevinb@redhat.com>
* simops (OP_10007E0): Update errno handling as most traps
do not invoke the host's functionality directly. Invoke
sim_io_stat() instead of stat() for implementing TARGET_SYS_stat.
Implement TARGET_SYS_fstat, TARGET_SYS_rename, and TARGET_SYS_unlink.
2011-02-14 Mike Frysinger <vapier@gentoo.org>
* simops.c (OP_10007E0): Change zfree to free.

84
sim/v850/simops.c
View File

@ -1629,6 +1629,8 @@ OP_10007E0 ()
#define MEMPTR(x) (map (x))
RETERR = 0;
switch (FUNC)
{
@ -1636,6 +1638,7 @@ OP_10007E0 ()
#ifdef TARGET_SYS_fork
case TARGET_SYS_fork:
RETVAL = fork ();
RETERR = errno;
break;
#endif
#endif
@ -1651,6 +1654,7 @@ OP_10007E0 ()
free (path);
freeargv (argv);
freeargv (envp);
RETERR = errno;
break;
}
#endif
@ -1665,6 +1669,7 @@ OP_10007E0 ()
RETVAL = execv (path, argv);
free (path);
freeargv (argv);
RETERR = errno;
break;
}
#endif
@ -1682,6 +1687,7 @@ OP_10007E0 ()
SW (buf, host_fd[0]);
buf += sizeof(uint16);
SW (buf, host_fd[1]);
RETERR = errno;
}
break;
#endif
@ -1695,6 +1701,7 @@ OP_10007E0 ()
RETVAL = wait (&status);
SW (PARM1, status);
RETERR = errno;
}
break;
#endif
@ -1707,6 +1714,8 @@ OP_10007E0 ()
RETVAL = sim_io_read (simulator, PARM1, buf, PARM3);
sim_write (simulator, PARM2, buf, PARM3);
free (buf);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
break;
}
#endif
@ -1721,6 +1730,8 @@ OP_10007E0 ()
else
RETVAL = sim_io_write (simulator, PARM1, buf, PARM3);
free (buf);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
break;
}
#endif
@ -1728,12 +1739,16 @@ OP_10007E0 ()
#ifdef TARGET_SYS_lseek
case TARGET_SYS_lseek:
RETVAL = sim_io_lseek (simulator, PARM1, PARM2, PARM3);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
break;
#endif
#ifdef TARGET_SYS_close
case TARGET_SYS_close:
RETVAL = sim_io_close (simulator, PARM1);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
break;
#endif
@ -1743,6 +1758,8 @@ OP_10007E0 ()
char *buf = fetch_str (simulator, PARM1);
RETVAL = sim_io_open (simulator, buf, PARM2);
free (buf);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
break;
}
#endif
@ -1764,7 +1781,6 @@ OP_10007E0 ()
break;
#endif
#if !defined(__GO32__) && !defined(_WIN32)
#ifdef TARGET_SYS_stat
case TARGET_SYS_stat: /* added at hmsi */
/* stat system call */
@ -1773,7 +1789,7 @@ OP_10007E0 ()
reg_t buf;
char *path = fetch_str (simulator, PARM1);
RETVAL = stat (path, &host_stat);
RETVAL = sim_io_stat (simulator, path, &host_stat);
free (path);
buf = PARM2;
@ -1790,9 +1806,67 @@ OP_10007E0 ()
store_mem (buf + 20, 4, host_stat.st_atime);
store_mem (buf + 28, 4, host_stat.st_mtime);
store_mem (buf + 36, 4, host_stat.st_ctime);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
}
break;
#endif
#ifdef TARGET_SYS_fstat
case TARGET_SYS_fstat:
/* fstat system call */
{
struct stat host_stat;
reg_t buf;
RETVAL = sim_io_fstat (simulator, PARM1, &host_stat);
buf = PARM2;
/* Just wild-assed guesses. */
store_mem (buf, 2, host_stat.st_dev);
store_mem (buf + 2, 2, host_stat.st_ino);
store_mem (buf + 4, 4, host_stat.st_mode);
store_mem (buf + 8, 2, host_stat.st_nlink);
store_mem (buf + 10, 2, host_stat.st_uid);
store_mem (buf + 12, 2, host_stat.st_gid);
store_mem (buf + 14, 2, host_stat.st_rdev);
store_mem (buf + 16, 4, host_stat.st_size);
store_mem (buf + 20, 4, host_stat.st_atime);
store_mem (buf + 28, 4, host_stat.st_mtime);
store_mem (buf + 36, 4, host_stat.st_ctime);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
}
break;
#endif
#ifdef TARGET_SYS_rename
case TARGET_SYS_rename:
{
char *oldpath = fetch_str (simulator, PARM1);
char *newpath = fetch_str (simulator, PARM2);
RETVAL = sim_io_rename (simulator, oldpath, newpath);
free (oldpath);
free (newpath);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
}
break;
#endif
#ifdef TARGET_SYS_unlink
case TARGET_SYS_unlink:
{
char *path = fetch_str (simulator, PARM1);
RETVAL = sim_io_unlink (simulator, path);
free (path);
if ((int) RETVAL < 0)
RETERR = sim_io_get_errno (simulator);
}
break;
#endif
#ifdef HAVE_CHOWN
@ -1802,6 +1876,7 @@ OP_10007E0 ()
char *path = fetch_str (simulator, PARM1);
RETVAL = chown (path, PARM2, PARM3);
free (path);
RETERR = errno;
}
break;
#endif
@ -1814,6 +1889,7 @@ OP_10007E0 ()
char *path = fetch_str (simulator, PARM1);
RETVAL = chmod (path, PARM2);
free (path);
RETERR = errno;
}
break;
#endif
@ -1826,6 +1902,7 @@ OP_10007E0 ()
time_t now;
RETVAL = time (&now);
store_mem (PARM1, 4, now);
RETERR = errno;
}
break;
#endif
@ -1841,6 +1918,7 @@ OP_10007E0 ()
store_mem (PARM1 + 4, 4, tms.tms_stime);
store_mem (PARM1 + 8, 4, tms.tms_cutime);
store_mem (PARM1 + 12, 4, tms.tms_cstime);
reterr = errno;
break;
}
#endif
@ -1857,6 +1935,7 @@ OP_10007E0 ()
store_mem (PARM1 + 4, 4, t.tv_usec);
store_mem (PARM2, 4, tz.tz_minuteswest);
store_mem (PARM2 + 4, 4, tz.tz_dsttime);
RETERR = errno;
break;
}
#endif
@ -1878,7 +1957,6 @@ OP_10007E0 ()
default:
abort ();
}
RETERR = errno;
errno = save_errno;
return 4;