[PATCH] Avoid more problems with type clashes

J. Johnston jjohnstn@redhat.com
Thu Mar 13 00:08:00 GMT 2003


I hadn't forgotten.  I do not understand why you are
avoiding the fpos_t type.  It is supposed to be defined by stdio.h.

Could you provide a little more detail the actual problem you are seeing
that this patch fixes?

-- Jeff J.

Corinna Vinschen wrote:
> On Mon, Mar 10, 2003 at 12:06:26PM +0100, Corinna Vinschen wrote:
> 
>>Hi,
>>
>>the following patch avoids more problems with fpos_t and off_t problems,
>>this time especially inside of newlib.  All these problems are just 
>>visible due to the switch of Cygwin to 64bit file offsets.  Basically
>>all fpos_t are changed to _fpos_t and off_t to _off_t.
>>
>>Ok to commit?
> 
> 
> Ping?
> 
> Corinna
> 
> 
>>2003-03-10  Corinna Vinschen  <corinna@vinschen.de>
>>
>>	* libc/include/stdio.h: Declare fgetpos, fsetpos, fseeko and ftello
>>	with internal (_fpos_t and _off_t) datatypes when compiling newlib.
>>	* libc/include/sys/unistd.h: Declare _lseek using _off_t.
>>	* libc/reent/lseekr.c (_lseek_r): Use _off_t instead of off_t.
>>	* libc/stdio/fseeko.c (fseeko): Ditto.
>>	* libc/stdio/ftello.c (ftello): Ditto.
>>	* libc/stdio/stdio.c (__swrite): Ditto.
>>	(__sseek): Ditto.
>>	* libc/stdio/fgetpos.c (fgetpos): Use _fpos_t instead of fpos_t.
>>	* libc/stdio/fseek.c (fseek): Ditto.
>>	* libc/stdio/fsetpos.c (fsetpos): Ditto.
>>	* libc/stdio/ftell.c (ftell): Ditto.
>>	* libc/stdio/local.h: Declare __sseek using _off_t.
>>
>>Index: libc/include/stdio.h
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/include/stdio.h,v
>>retrieving revision 1.20
>>diff -p -u -r1.20 stdio.h
>>--- libc/include/stdio.h	7 Mar 2003 20:41:49 -0000	1.20
>>+++ libc/include/stdio.h	10 Mar 2003 10:44:33 -0000
>>@@ -195,9 +195,17 @@ int	_EXFUN(puts, (const char *));
>> int	_EXFUN(ungetc, (int, FILE *));
>> size_t	_EXFUN(fread, (_PTR, size_t _size, size_t _n, FILE *));
>> size_t	_EXFUN(fwrite, (const _PTR , size_t _size, size_t _n, FILE *));
>>+#ifdef _COMPILING_NEWLIB
>>+int	_EXFUN(fgetpos, (FILE *, _fpos_t *));
>>+#else
>> int	_EXFUN(fgetpos, (FILE *, fpos_t *));
>>+#endif
>> int	_EXFUN(fseek, (FILE *, long, int));
>>+#ifdef _COMPILING_NEWLIB
>>+int	_EXFUN(fsetpos, (FILE *, const _fpos_t *));
>>+#else
>> int	_EXFUN(fsetpos, (FILE *, const fpos_t *));
>>+#endif
>> long	_EXFUN(ftell, ( FILE *));
>> void	_EXFUN(rewind, (FILE *));
>> void	_EXFUN(clearerr, (FILE *));
>>@@ -212,8 +220,13 @@ int	_EXFUN(rename, (const char *, const 
>> #endif
>> #ifndef __STRICT_ANSI__
>> int	_EXFUN(asprintf, (char **, const char *, ...));
>>+#ifdef _COMPILING_NEWLIB
>>+int	_EXFUN(fseeko, (FILE *, _off_t, int));
>>+_off_t	_EXFUN(ftello, ( FILE *));
>>+#else
>> int	_EXFUN(fseeko, (FILE *, off_t, int));
>> off_t	_EXFUN(ftello, ( FILE *));
>>+#endif
>> int	_EXFUN(vfiprintf, (FILE *, const char *, __VALIST));
>> int	_EXFUN(iprintf, (const char *, ...));
>> int	_EXFUN(fiprintf, (FILE *, const char *, ...));
>>Index: libc/include/sys/unistd.h
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/include/sys/unistd.h,v
>>retrieving revision 1.41
>>diff -p -u -r1.41 unistd.h
>>--- libc/include/sys/unistd.h	9 Mar 2003 21:08:51 -0000	1.41
>>+++ libc/include/sys/unistd.h	10 Mar 2003 10:44:33 -0000
>>@@ -165,7 +165,7 @@ int     _EXFUN(_close, (int __fildes ));
>> pid_t   _EXFUN(_fork, (void ));
>> pid_t   _EXFUN(_getpid, (void ));
>> int     _EXFUN(_link, (const char *__path1, const char *__path2 ));
>>-off_t   _EXFUN(_lseek, (int __fildes, off_t __offset, int __whence ));
>>+_off_t   _EXFUN(_lseek, (int __fildes, _off_t __offset, int __whence ));
>> _READ_WRITE_RETURN_TYPE _EXFUN(_read, (int __fd, void *__buf, size_t __nbyte ));
>> void *  _EXFUN(_sbrk,  (ptrdiff_t __incr));
>> int     _EXFUN(_unlink, (const char *__path ));
>>Index: libc/reent/lseekr.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/reent/lseekr.c,v
>>retrieving revision 1.2
>>diff -p -u -r1.2 lseekr.c
>>--- libc/reent/lseekr.c	9 Mar 2003 22:10:14 -0000	1.2
>>+++ libc/reent/lseekr.c	10 Mar 2003 10:44:33 -0000
>>@@ -52,10 +52,10 @@ _lseek_r (ptr, fd, pos, whence)
>>      _off_t pos;
>>      int whence;
>> {
>>-  off_t ret;
>>+  _off_t ret;
>> 
>>   errno = 0;
>>-  if ((ret = _lseek (fd, pos, whence)) == (off_t) -1 && errno != 0)
>>+  if ((ret = _lseek (fd, pos, whence)) == (_off_t) -1 && errno != 0)
>>     ptr->_errno = errno;
>>   return ret;
>> }
>>Index: libc/stdio/fgetpos.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/fgetpos.c,v
>>retrieving revision 1.2
>>diff -p -u -r1.2 fgetpos.c
>>--- libc/stdio/fgetpos.c	8 May 2002 00:12:48 -0000	1.2
>>+++ libc/stdio/fgetpos.c	10 Mar 2003 10:44:33 -0000
>>@@ -51,7 +51,7 @@ No supporting OS subroutines are require
>> int
>> _DEFUN (fgetpos, (fp, pos),
>> 	FILE * fp _AND
>>-	fpos_t * pos)
>>+	_fpos_t * pos)
>> {
>>   _flockfile(fp);
>>   *pos = ftell (fp);
>>Index: libc/stdio/fseek.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/fseek.c,v
>>retrieving revision 1.5
>>diff -p -u -r1.5 fseek.c
>>--- libc/stdio/fseek.c	4 Jul 2002 19:33:54 -0000	1.5
>>+++ libc/stdio/fseek.c	10 Mar 2003 10:44:33 -0000
>>@@ -86,7 +86,7 @@ Supporting OS subroutines required: <<cl
>> #include <sys/stat.h>
>> #include "local.h"
>> 
>>-#define	POS_ERR	(-(fpos_t)1)
>>+#define	POS_ERR	(-(_fpos_t)1)
>> 
>> /*
>>  * Seek the given file to the given offset.
>>@@ -100,8 +100,8 @@ fseek (fp, offset, whence)
>>      int whence;
>> {
>>   struct _reent *ptr;
>>-  fpos_t _EXFUN ((*seekfn), (void *, fpos_t, int));
>>-  fpos_t target, curoff;
>>+  _fpos_t _EXFUN ((*seekfn), (void *, _fpos_t, int));
>>+  _fpos_t target, curoff;
>>   size_t n;
>>   struct stat st;
>>   int havepos;
>>@@ -149,7 +149,7 @@ fseek (fp, offset, whence)
>> 	curoff = fp->_offset;
>>       else
>> 	{
>>-	  curoff = (*seekfn) (fp->_cookie, (fpos_t) 0, SEEK_CUR);
>>+	  curoff = (*seekfn) (fp->_cookie, (_fpos_t) 0, SEEK_CUR);
>> 	  if (curoff == -1L)
>> 	    {
>> 	      _funlockfile(fp);
>>Index: libc/stdio/fseeko.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/fseeko.c,v
>>retrieving revision 1.1
>>diff -p -u -r1.1 fseeko.c
>>--- libc/stdio/fseeko.c	4 Jul 2002 19:33:54 -0000	1.1
>>+++ libc/stdio/fseeko.c	10 Mar 2003 10:44:33 -0000
>>@@ -20,7 +20,7 @@
>> int
>> fseeko (fp, offset, whence)
>>         register FILE *fp;
>>-        off_t offset;
>>+        _off_t offset;
>>         int whence;
>> {
>>   /* for now we simply cast since off_t should be long */
>>Index: libc/stdio/fsetpos.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/fsetpos.c,v
>>retrieving revision 1.1.1.1
>>diff -p -u -r1.1.1.1 fsetpos.c
>>--- libc/stdio/fsetpos.c	17 Feb 2000 19:39:47 -0000	1.1.1.1
>>+++ libc/stdio/fsetpos.c	10 Mar 2003 10:44:33 -0000
>>@@ -44,7 +44,7 @@ Supporting OS subroutines required: <<cl
>> int
>> _DEFUN (fsetpos, (iop, pos),
>> 	FILE * iop _AND
>>-	_CONST fpos_t * pos)
>>+	_CONST _fpos_t * pos)
>> {
>>   int x = fseek (iop, *pos, SEEK_SET);
>> 
>>Index: libc/stdio/ftell.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/ftell.c,v
>>retrieving revision 1.4
>>diff -p -u -r1.4 ftell.c
>>--- libc/stdio/ftell.c	16 Jul 2002 15:30:32 -0000	1.4
>>+++ libc/stdio/ftell.c	10 Mar 2003 10:44:33 -0000
>>@@ -87,7 +87,7 @@ long
>> _DEFUN (ftell, (fp),
>> 	register FILE * fp)
>> {
>>-  fpos_t pos;
>>+  _fpos_t pos;
>> 
>>   _flockfile(fp);
>> 
>>@@ -109,7 +109,7 @@ _DEFUN (ftell, (fp),
>>     pos = fp->_offset;
>>   else
>>     {
>>-      pos = (*fp->_seek) (fp->_cookie, (fpos_t) 0, SEEK_CUR);
>>+      pos = (*fp->_seek) (fp->_cookie, (_fpos_t) 0, SEEK_CUR);
>>       if (pos == -1L)
>>         {
>>           _funlockfile(fp);
>>Index: libc/stdio/ftello.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/ftello.c,v
>>retrieving revision 1.1
>>diff -p -u -r1.1 ftello.c
>>--- libc/stdio/ftello.c	4 Jul 2002 19:33:54 -0000	1.1
>>+++ libc/stdio/ftello.c	10 Mar 2003 10:44:33 -0000
>>@@ -17,10 +17,10 @@
>> 
>> #include <stdio.h>
>> 
>>-off_t
>>+_off_t
>> _DEFUN (ftello, (fp),
>> 	register FILE * fp)
>> {
>>   /* for now we simply cast since off_t should be long */
>>-  return (off_t)ftell (fp);
>>+  return (_off_t)ftell (fp);
>> }
>>Index: libc/stdio/local.h
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/local.h,v
>>retrieving revision 1.6
>>diff -p -u -r1.6 local.h
>>--- libc/stdio/local.h	1 Oct 2001 18:05:11 -0000	1.6
>>+++ libc/stdio/local.h	10 Mar 2003 10:44:33 -0000
>>@@ -33,7 +33,7 @@ extern int    _EXFUN(__sflags,(struct _r
>> extern int    _EXFUN(__srefill,(FILE *));
>> extern _READ_WRITE_RETURN_TYPE _EXFUN(__sread,(void *, char *, int));
>> extern _READ_WRITE_RETURN_TYPE _EXFUN(__swrite,(void *, char const *, int));
>>-extern fpos_t _EXFUN(__sseek,(void *, fpos_t, int));
>>+extern _fpos_t _EXFUN(__sseek,(void *, _fpos_t, int));
>> extern int    _EXFUN(__sclose,(void *));
>> extern int    _EXFUN(__stextmode,(int));
>> extern void   _EXFUN(__sinit,(struct _reent *));
>>Index: libc/stdio/stdio.c
>>===================================================================
>>RCS file: /cvs/src/src/newlib/libc/stdio/stdio.c,v
>>retrieving revision 1.4
>>diff -p -u -r1.4 stdio.c
>>--- libc/stdio/stdio.c	6 Mar 2001 01:04:43 -0000	1.4
>>+++ libc/stdio/stdio.c	10 Mar 2003 10:44:33 -0000
>>@@ -72,7 +72,7 @@ __swrite (cookie, buf, n)
>> #endif
>> 
>>   if (fp->_flags & __SAPP)
>>-    (void) _lseek_r (fp->_data, fp->_file, (off_t) 0, SEEK_END);
>>+    (void) _lseek_r (fp->_data, fp->_file, (_off_t) 0, SEEK_END);
>>   fp->_flags &= ~__SOFF;	/* in case O_APPEND mode is set */
>> 
>> #ifdef __SCLE
>>@@ -90,16 +90,16 @@ __swrite (cookie, buf, n)
>>   return w;
>> }
>> 
>>-fpos_t
>>+_fpos_t
>> __sseek (cookie, offset, whence)
>>      _PTR cookie;
>>-     fpos_t offset;
>>+     _fpos_t offset;
>>      int whence;
>> {
>>   register FILE *fp = (FILE *) cookie;
>>-  register off_t ret;
>>+  register _off_t ret;
>> 
>>-  ret = _lseek_r (fp->_data, fp->_file, (off_t) offset, whence);
>>+  ret = _lseek_r (fp->_data, fp->_file, (_off_t) offset, whence);
>>   if (ret == -1L)
>>     fp->_flags &= ~__SOFF;
>>   else
>>
>>-- 
>>Corinna Vinschen
>>Cygwin Developer
>>Red Hat, Inc.
>>mailto:vinschen@redhat.com
> 
> 




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