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libgloss: bfin: implement getpid/fstat/stat/link/unlink syscalls

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The current syscalls.c implements getpid/fstat/stat/link/unlink as mere
stubs.  So replace them with useful calls to do_syscall now that our sim
can support them.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Michael Frysinger 2011-07-01 21:47:36 +00:00
parent ecd3577e1d
commit 1df99a60b3
2 changed files with 34 additions and 20 deletions
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13
libgloss/ChangeLog
View File

@ -1,3 +1,16 @@
2011-07-01 Mike Frysinger <vapier@gentoo.org>
* bfin/syscalls.c (_getpid): Call do_syscall with func argument n and
return the result.
(_fstat): Delete stub body. Add block array and assign file/st to it.
Call do_syscall with result.
(_stat): Delete stub body. Add block array and assign fname/st to
it. Call do_syscall with result.
(_link): Change func arguments to accept two strings. Add block array
and assign existing/new to it. Call do_syscall with result.
(_unlink): Change func arguments to accept a string. Call do_syscall
with new argument.
2011-07-01 Mike Frysinger <vapier@gentoo.org>
* bfin/syscalls.c (_lseek): Change 3rd arg name to whence. Increase

41
libgloss/bfin/syscalls.c
View File

@ -117,7 +117,7 @@ _kill (int n, int m)
int
_getpid (int n)
{
return 1;
return do_syscall (SYS_getpid, &n);
}
caddr_t
@ -156,40 +156,41 @@ _sbrk (int incr)
extern void memset (struct stat *, int, unsigned int);
int
_fstat (int file, struct stat * st)
_fstat (int file, struct stat *st)
{
memset (st, 0, sizeof (* st));
st->st_mode = S_IFCHR;
st->st_blksize = 1024;
return 0;
int block[2];
block[0] = file;
block[1] = (int) st;
return do_syscall (SYS_fstat, block);
}
int _stat (const char *fname, struct stat *st)
{
int file;
int block[2];
/* The best we can do is try to open the file readonly. If it exists,
then we can guess a few things about it. */
if ((file = _open (fname, O_RDONLY)) < 0)
return -1;
block[0] = (int) fname;
block[1] = (int) st;
memset (st, 0, sizeof (* st));
st->st_mode = S_IFREG | S_IREAD;
st->st_blksize = 1024;
_close (file); /* Not interested in the error. */
return 0;
return do_syscall (SYS_stat, block);
}
int
_link (void)
_link (const char *existing, const char *new)
{
return -1;
int block[2];
block[0] = (int) existing;
block[1] = (int) new;
return do_syscall (SYS_link, block);
}
int
_unlink (void)
_unlink (const char *path)
{
return -1;
return do_syscall (SYS_unlink, path);
}
void