public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug fortran/41219]  New: libgfortran build warnings
@ 2009-09-01 21:09 burnus at gcc dot gnu dot org
  2009-09-03  6:55 ` [Bug fortran/41219] " burnus at gcc dot gnu dot org
                   ` (24 more replies)
  0 siblings, 25 replies; 29+ messages in thread
From: burnus at gcc dot gnu dot org @ 2009-09-01 21:09 UTC (permalink / raw)
  To: gcc-bugs

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 2604 bytes --]

Reported by NightStrike in #gfortran - I see the same in my build logs. Some
annotations, see below.

../../../gcc/libgfortran/io/list_read.c: In function ‘nml_read_obj’:
../../../gcc/libgfortran/io/list_read.c:2470:31: warning: comparison between
‘bt’ and ‘enum <anonymous>’
../../../gcc/libgfortran/io/write.c: In function ‘write_a_char4’:
../../../gcc/libgfortran/io/write.c:328:8: warning: passing argument 2 of
‘write_default_char4’ from incompatible pointer type
../../../gcc/libgfortran/io/write.c:44:1: note: expected ‘gfc_char4_t *’ but
argument is of type ‘const char *’
../../../gcc/libgfortran/io/unix.c: In function ‘fd_to_stream’:
../../../gcc/libgfortran/io/unix.c:750:15: warning: ‘statbuf.st_mode’ may be
used uninitialized in this function
../../../gcc/libgfortran/io/unix.c:750:15: warning: ‘statbuf.st_size’ may be
used uninitialized in this function
../../../gcc/libgfortran/intrinsics/getlog.c: In function ‘_gfortran_getlog’:
../../../gcc/libgfortran/intrinsics/getlog.c:85:3: warning: implicit
declaration of function ‘getlogin’
../../../gcc/libgfortran/intrinsics/getlog.c:85:5: warning: assignment makes
pointer from integer without a cast



../../../gcc/libgfortran/intrinsics/iso_c_binding.c: In function
‘__iso_c_binding_c_f_pointer_u0’:
../../../gcc/libgfortran/intrinsics/iso_c_binding.c:112:15: warning: ‘str’ may
be used uninitialized in this function

ISO_C_BINDING_PREFIX (c_f_pointer_u0) (void *c_ptr_in,
      for (i = 0; i < shapeSize; i++)
        {
          index_type str, ub;
          if (i == 0)
              str = 1;
            }
          else
            {
              str = str * GFC_DESCRIPTOR_EXTENT(f_ptr_out,i-1);

That looks like a real bug! The "str" declaration should be moved outside the
loop.



../../../gcc/libgfortran/intrinsics/unpack_generic.c: In function
‘unpack_internal’:
../../../gcc/libgfortran/intrinsics/unpack_generic.c:60:32: warning: unused
parameter ‘fsize’

That's
  unpack_internal (gfc_array_char *ret, const gfc_array_char *vector,
                   const gfc_array_l1 *mask, const gfc_array_char *field,
                   index_type size, index_type fsize)

And probably a side effect of Thomas' bound check work.


-- 
           Summary: libgfortran build warnings
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
@ 2009-09-03  6:55 ` burnus at gcc dot gnu dot org
  2009-09-03  7:12 ` burnus at gcc dot gnu dot org
                   ` (23 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: burnus at gcc dot gnu dot org @ 2009-09-03  6:55 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #1 from burnus at gcc dot gnu dot org  2009-09-03 06:55 -------
Thomas, I think do to your changes one now gets a warning (unused argument) for
libgfortran/intrinsics/unpack_generic.c.

The last argument of unpack_internal ("index_type fsize") is no longer used; as
the function is static, one can simply remove it and update the callers (where
some __attribute__((unused)) has then to be added).

Is there really no need for the argument? Any any case, can you have a look and
create a patch?


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tkoenig at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-09-03 06:55:42
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
  2009-09-03  6:55 ` [Bug fortran/41219] " burnus at gcc dot gnu dot org
@ 2009-09-03  7:12 ` burnus at gcc dot gnu dot org
  2009-09-03  7:37 ` burnus at gcc dot gnu dot org
                   ` (22 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: burnus at gcc dot gnu dot org @ 2009-09-03  7:12 UTC (permalink / raw)
  To: gcc-bugs

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1567 bytes --]



------- Comment #2 from burnus at gcc dot gnu dot org  2009-09-03 07:12 -------
Nightstrike: I do not understand
  libgfortran/intrinsics/getlog.c:85:3: warning: implicit declaration of 
                                                 function ‘getlogin’
There is a
  #if defined __MINGW32__ && !defined  HAVE_GETLOGIN
block which should make sure that it is defined. Can you try to find out what
goes wrong?

 * * *

Janne, I think the warning about "unix.c:750:15: warning: ‘statbuf.st_mode’ may
be used uninitialized" is spurious, but can you have a look?

 * * *

Jerry, there is some inconsistency regarding st_parameter_dt's "saved_type".
One finds both "bt" and "dtype" assignments, which does not make sense. Does
one need both types in a union? Or can one consolidate them?

list_read.c:  dtp->u.p.saved_type = BT_LOGICAL;
list_read.c:      dtp->u.p.saved_type = GFC_DTYPE_UNKNOWN;
etc.

Currently, one gets a compile-time warning (see comment 0).


In write_a_char4, one has:
      const char crlf[] = "\r\n";
              write_default_char4 (dtp, crlf, 2, 0);
but the second argument should be  gfc_char4_t*


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jb at gcc dot gnu dot org,
                   |                            |jvdelisle at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
  2009-09-03  6:55 ` [Bug fortran/41219] " burnus at gcc dot gnu dot org
  2009-09-03  7:12 ` burnus at gcc dot gnu dot org
@ 2009-09-03  7:37 ` burnus at gcc dot gnu dot org
  2009-09-03  8:36 ` ktietz at gcc dot gnu dot org
                   ` (21 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: burnus at gcc dot gnu dot org @ 2009-09-03  7:37 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #3 from burnus at gcc dot gnu dot org  2009-09-03 07:36 -------
Subject: Bug 41219

Author: burnus
Date: Thu Sep  3 07:36:36 2009
New Revision: 151371

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151371
Log:
2009-09-03  Tobias Burnus  <burnus@net-b.de>

       PR fortran/41219
       * intrinsics/iso_c_binding.c (c_f_pointer_u0): Move variable
       declaration out of the loop.


Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/intrinsics/iso_c_binding.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (2 preceding siblings ...)
  2009-09-03  7:37 ` burnus at gcc dot gnu dot org
@ 2009-09-03  8:36 ` ktietz at gcc dot gnu dot org
  2009-09-04  9:25 ` burnus at gcc dot gnu dot org
                   ` (20 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: ktietz at gcc dot gnu dot org @ 2009-09-03  8:36 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #4 from ktietz at gcc dot gnu dot org  2009-09-03 08:36 -------
The getlogin function is getting prototyped in headers only, if the _POSIX
define was set. So a bug-fix here would be for w64 to define before including
headers the _POSIX macro.

Cheers,
Kai


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (3 preceding siblings ...)
  2009-09-03  8:36 ` ktietz at gcc dot gnu dot org
@ 2009-09-04  9:25 ` burnus at gcc dot gnu dot org
  2009-09-06 13:55 ` jb at gcc dot gnu dot org
                   ` (19 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: burnus at gcc dot gnu dot org @ 2009-09-04  9:25 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #5 from burnus at gcc dot gnu dot org  2009-09-04 09:25 -------
Subject: Bug 41219

Author: burnus
Date: Fri Sep  4 09:25:00 2009
New Revision: 151417

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151417
Log:
2009-09-04  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41219
        * intrinsics/getlog.c: Define _POSIX for MINGW32.


Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/intrinsics/getlog.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (4 preceding siblings ...)
  2009-09-04  9:25 ` burnus at gcc dot gnu dot org
@ 2009-09-06 13:55 ` jb at gcc dot gnu dot org
  2009-09-06 18:18 ` jvdelisle at gcc dot gnu dot org
                   ` (18 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jb at gcc dot gnu dot org @ 2009-09-06 13:55 UTC (permalink / raw)
  To: gcc-bugs

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1803 bytes --]



------- Comment #6 from jb at gcc dot gnu dot org  2009-09-06 13:55 -------
(In reply to comment #2)
> Janne, I think the warning about "unix.c:750:15: warning: ‘statbuf.st_mode’ may
> be used uninitialized" is spurious, but can you have a look?

Yes, it's spurious, and I submitted a patch
(http://gcc.gnu.org/ml/gcc-patches/2009-09/msg00419.html), but maybe the
middle-end shouldn't warn about it anyway (see the reply by Richard Guenther).

> Jerry, there is some inconsistency regarding st_parameter_dt's "saved_type".
> One finds both "bt" and "dtype" assignments, which does not make sense. Does
> one need both types in a union? Or can one consolidate them?
> 
> list_read.c:  dtp->u.p.saved_type = BT_LOGICAL;
> list_read.c:      dtp->u.p.saved_type = GFC_DTYPE_UNKNOWN;
> etc.

I looked into this when I redid the lower layer I/O library, and I gave up in
exasperation. This dichotomy between BT_* and GFC_DTYPE_* extends into the
frontend, and would require lots of tedious work and an ABI change to fix.
Perhaps at the same time we change the array descriptor we could fix this too
(the descriptor also needs some form of type tag, and if we adopt the TR29113
descriptor that then also influences the type tag). I added a note about this
to http://gcc.gnu.org/wiki/LibgfortranAbiCleanup . As an additional bonus, note
that the bt enum is different in the frontend and the library, and some of the
library entry points take bt enums as arguments, which makes one one wonder how
the heck all this works.. :)

> In write_a_char4, one has:
>       const char crlf[] = "\r\n";
>               write_default_char4 (dtp, crlf, 2, 0);
> but the second argument should be  gfc_char4_t*

Right. So what is "\r\n" in terms of gfc_char4_t? 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (5 preceding siblings ...)
  2009-09-06 13:55 ` jb at gcc dot gnu dot org
@ 2009-09-06 18:18 ` jvdelisle at gcc dot gnu dot org
  2009-09-06 21:21 ` jvdelisle at gcc dot gnu dot org
                   ` (17 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu dot org @ 2009-09-06 18:18 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #7 from jvdelisle at gcc dot gnu dot org  2009-09-06 18:17 -------
Let me fix this.


-- 

jvdelisle at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jvdelisle at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-09-03 06:55:42         |2009-09-06 18:17:58
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (6 preceding siblings ...)
  2009-09-06 18:18 ` jvdelisle at gcc dot gnu dot org
@ 2009-09-06 21:21 ` jvdelisle at gcc dot gnu dot org
  2009-09-07  2:57 ` jvdelisle at gcc dot gnu dot org
                   ` (16 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu dot org @ 2009-09-06 21:21 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #8 from jvdelisle at gcc dot gnu dot org  2009-09-06 21:21 -------
The following patch gets rid of the two warnings in list_read.c.  The two
enumerators have equivalent value.  Regression tests fine.

@@ -2377,7 +2377,7 @@
          /* GFC_TYPE_UNKNOWN through for nulls and is detected
             after the switch block.  */

-         dtp->u.p.saved_type = GFC_DTYPE_UNKNOWN;
+         dtp->u.p.saved_type = BT_NULL;
          free_saved (dtp);

           switch (nl->type)
@@ -2467,7 +2467,7 @@
          return SUCCESS;
        }

-      if (dtp->u.p.saved_type == GFC_DTYPE_UNKNOWN)
+      if (dtp->u.p.saved_type == BT_NULL)
        {
          dtp->u.p.expanded_read = 0;
          goto incr_idx;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (7 preceding siblings ...)
  2009-09-06 21:21 ` jvdelisle at gcc dot gnu dot org
@ 2009-09-07  2:57 ` jvdelisle at gcc dot gnu dot org
  2009-09-07 11:27 ` sezeroz at gmail dot com
                   ` (15 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu dot org @ 2009-09-07  2:57 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #9 from jvdelisle at gcc dot gnu dot org  2009-09-07 02:57 -------
Regarding comment #6.

>> In write_a_char4, one has:
>>       const char crlf[] = "\r\n";
>>               write_default_char4 (dtp, crlf, 2, 0);
>> but the second argument should be  gfc_char4_t*

>Right. So what is "\r\n" in terms of gfc_char4_t? 

I believe the following is the correct fix for this.  I have partially tested
this but need to do some more testing.

Index: write.c
===================================================================
--- write.c     (revision 151441)
+++ write.c     (working copy)
@@ -293,7 +293,7 @@
      Standard sections 10.6.3 and 9.9 for further information.  */
   if (is_stream_io (dtp))
     {
-      const char crlf[] = "\r\n";
+      const gfc_char4_t crlf[] = {0x000d,0x000a};
       int i, bytes;
       gfc_char4_t *qq;
       bytes = 0;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (8 preceding siblings ...)
  2009-09-07  2:57 ` jvdelisle at gcc dot gnu dot org
@ 2009-09-07 11:27 ` sezeroz at gmail dot com
  2009-09-08  0:59 ` jvdelisle at gcc dot gnu dot org
                   ` (14 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: sezeroz at gmail dot com @ 2009-09-07 11:27 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #10 from sezeroz at gmail dot com  2009-09-07 11:27 -------
(In reply to comment #6)
> (In reply to comment #2)
> > Janne, I think the warning about "unix.c:750:15: warning: &#65533;statbuf.st_mode&#65533; may
> > be used uninitialized" is spurious, but can you have a look?
> 
> Yes, it's spurious, and I submitted a patch
> (http://gcc.gnu.org/ml/gcc-patches/2009-09/msg00419.html), but maybe the
> middle-end shouldn't warn about it anyway (see the reply by Richard Guenther).

The warning must be due to the inline fstat() implementation in
mingw-w64. Excerpt from stat.h:

__CRT_INLINE int __cdecl
 fstat(int _Desc,struct stat *_Stat) {
  struct _stat64 st;
  int ret=_fstat64(_Desc,&st);
  if (ret == -1) {
    memset(_Stat,0,sizeof(struct stat));
    return -1;
  }
 /* rest of the code */

Note that the memset() in the failure case was only recently added in our svn,
at rev. 1306, so this warning shouldn't be experienced with mingw-w64 rev.1306
or later. Older revisions didn't touch the input buffer on failure which should
be the reason for the warning.


-- 

sezeroz at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sezeroz at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (9 preceding siblings ...)
  2009-09-07 11:27 ` sezeroz at gmail dot com
@ 2009-09-08  0:59 ` jvdelisle at gcc dot gnu dot org
  2009-09-12  5:36 ` nightstrike at gmail dot com
                   ` (13 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu dot org @ 2009-09-08  0:59 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #11 from jvdelisle at gcc dot gnu dot org  2009-09-08 00:59 -------
Subject: Bug 41219

Author: jvdelisle
Date: Tue Sep  8 00:59:05 2009
New Revision: 151495

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151495
Log:
2009-09-07  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/41192
        * io/list_read.c (eat_line): Enable eat_line to function on
        internal units.

        PR libgfortran/41219
        * io/list_read.c (nml_read_obj): Replace GFC_DTYPE_UNKNOWN with
        BT_NULL to get rid of warning.

Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/io/list_read.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (10 preceding siblings ...)
  2009-09-08  0:59 ` jvdelisle at gcc dot gnu dot org
@ 2009-09-12  5:36 ` nightstrike at gmail dot com
  2009-09-12 14:49 ` jvdelisle at gcc dot gnu dot org
                   ` (12 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: nightstrike at gmail dot com @ 2009-09-12  5:36 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #12 from nightstrike at gmail dot com  2009-09-12 05:36 -------
Current warning list as of revision 151630:

../../../../../build/gcc/gcc/libgfortran/io/write.c:328:8: warning: passing
argument 2 of 'write_default_char4' from incompatible pointer type
../../../../../build/gcc/gcc/libgfortran/intrinsics/iso_c_binding.c:98:24:
warning: 'str' may be used uninitialized in this function
../../../../../build/gcc/gcc/libgfortran/intrinsics/unpack_generic.c:60:32:
warning: unused parameter 'fsize'


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (11 preceding siblings ...)
  2009-09-12  5:36 ` nightstrike at gmail dot com
@ 2009-09-12 14:49 ` jvdelisle at gcc dot gnu dot org
  2009-09-12 15:08 ` jvdelisle at gcc dot gnu dot org
                   ` (11 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu dot org @ 2009-09-12 14:49 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #13 from jvdelisle at gcc dot gnu dot org  2009-09-12 14:48 -------
I will do the write.c one.


-- 

jvdelisle at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|jvdelisle at gcc dot gnu dot|unassigned at gcc dot gnu
                   |org                         |dot org
             Status|ASSIGNED                    |NEW


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (12 preceding siblings ...)
  2009-09-12 14:49 ` jvdelisle at gcc dot gnu dot org
@ 2009-09-12 15:08 ` jvdelisle at gcc dot gnu dot org
  2009-09-21 16:31 ` nightstrike at gmail dot com
                   ` (10 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu dot org @ 2009-09-12 15:08 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #14 from jvdelisle at gcc dot gnu dot org  2009-09-12 15:08 -------
Subject: Bug 41219

Author: jvdelisle
Date: Sat Sep 12 15:08:27 2009
New Revision: 151653

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151653
Log:
2009-09-12  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/41219
        * io/write.c (write_a_char4): Use correct type for crlf constant.

Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/io/write.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (13 preceding siblings ...)
  2009-09-12 15:08 ` jvdelisle at gcc dot gnu dot org
@ 2009-09-21 16:31 ` nightstrike at gmail dot com
  2009-09-21 16:33 ` nightstrike at gmail dot com
                   ` (9 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: nightstrike at gmail dot com @ 2009-09-21 16:31 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #15 from nightstrike at gmail dot com  2009-09-21 16:30 -------
Current list:

../../../../../build/gcc/gcc/libgfortran/io/list_read.c:1847:10: warning:
variable 'elem' might be clobbered by 'longjmp' or 'vfork'
../../../../../build/gcc/gcc/libgfortran/io/list_read.c:1849:10: warning:
variable 'stride' might be clobbered by 'longjmp' or 'vfork'
../../../../../build/gcc/gcc/libgfortran/io/write.c:328:8: warning: passing
argument 2 of 'write_default_char4' discards qualifiers from pointer target
type
../../../../../build/gcc/gcc/libgfortran/intrinsics/iso_c_binding.c:98:24:
warning: 'str' may be used uninitialized in this function
../../../../../build/gcc/gcc/libgfortran/intrinsics/unpack_generic.c:60:32:
warning: unused parameter 'fsize'


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (14 preceding siblings ...)
  2009-09-21 16:31 ` nightstrike at gmail dot com
@ 2009-09-21 16:33 ` nightstrike at gmail dot com
  2009-09-21 17:01 ` burnus at gcc dot gnu dot org
                   ` (8 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: nightstrike at gmail dot com @ 2009-09-21 16:33 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #16 from nightstrike at gmail dot com  2009-09-21 16:33 -------
(In reply to comment #14)
> Subject: Bug 41219
> 
> Author: jvdelisle
> Date: Sat Sep 12 15:08:27 2009
> New Revision: 151653

As of r151914, this warning still exists when the host=linux64 and the
target=win64.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (15 preceding siblings ...)
  2009-09-21 16:33 ` nightstrike at gmail dot com
@ 2009-09-21 17:01 ` burnus at gcc dot gnu dot org
  2009-09-21 17:36 ` nightstrike at gmail dot com
                   ` (7 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: burnus at gcc dot gnu dot org @ 2009-09-21 17:01 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #17 from burnus at gcc dot gnu dot org  2009-09-21 17:01 -------
> ../../../../../build/gcc/gcc/libgfortran/intrinsics/iso_c_binding.c:98:24:
> warning: 'str' may be used uninitialized in this function

I think this warning is bogus:
      index_type size, str;
      for (i = 0; i < shapeSize; i++)
        {
          if (i == 0)
              str = 1;
          else
              str = str * GFC_DESCRIPTOR_EXTENT(f_ptr_out,i-1);
But one could add a "str = 1" to silence the compiler ...


> ../../../../../build/gcc/gcc/libgfortran/io/write.c:328:8: warning: passing
> argument 2 of 'write_default_char4' discards qualifiers from pointer target

crlf is "const" while write_default_char4 takes a normal "char4 *". (The
question is whether we can't simply make that "const char4 *" - ditto for
write_char etc.) If not, I think one can silent this warning (I somewhere had a
note how to do this).


> ../../../../../build/gcc/gcc/libgfortran/io/list_read.c:1847:10: warning:
> variable 'elem' might be clobbered by 'longjmp' or 'vfork'
> ../../../../../build/gcc/gcc/libgfortran/io/list_read.c:1849:10: warning:
> variable 'stride' might be clobbered by 'longjmp' or 'vfork'l

I think this comes due to list_formatted_read_scalar which uses
"setjmp()". I currently do not see whether there is a real problem or not;
"volatile" should help, but one should first search for another solution.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (16 preceding siblings ...)
  2009-09-21 17:01 ` burnus at gcc dot gnu dot org
@ 2009-09-21 17:36 ` nightstrike at gmail dot com
  2009-09-21 18:01 ` kargl at gcc dot gnu dot org
                   ` (6 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: nightstrike at gmail dot com @ 2009-09-21 17:36 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #18 from nightstrike at gmail dot com  2009-09-21 17:36 -------
(In reply to comment #17)
> > ../../../../../build/gcc/gcc/libgfortran/intrinsics/iso_c_binding.c:98:24:
> > warning: 'str' may be used uninitialized in this function
> 
> I think this warning is bogus:
>       index_type size, str;
>       for (i = 0; i < shapeSize; i++)
>         {
>           if (i == 0)
>               str = 1;
>           else
>               str = str * GFC_DESCRIPTOR_EXTENT(f_ptr_out,i-1);
> But one could add a "str = 1" to silence the compiler ...

This looks dumb to begin with.  Just initialize str to 1 and run the for-loop
from 1 to shapeSize.  Starting at 0 and special casing zero is absurd.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (17 preceding siblings ...)
  2009-09-21 17:36 ` nightstrike at gmail dot com
@ 2009-09-21 18:01 ` kargl at gcc dot gnu dot org
  2009-09-21 18:12 ` nightstrike at gmail dot com
                   ` (5 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: kargl at gcc dot gnu dot org @ 2009-09-21 18:01 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #19 from kargl at gcc dot gnu dot org  2009-09-21 18:01 -------
(In reply to comment #18)
> (In reply to comment #17)
> > > ../../../../../build/gcc/gcc/libgfortran/intrinsics/iso_c_binding.c:98:24:
> > > warning: 'str' may be used uninitialized in this function
> > 
> > I think this warning is bogus:
> >       index_type size, str;
> >       for (i = 0; i < shapeSize; i++)
> >         {
> >           if (i == 0)
> >               str = 1;
> >           else
> >               str = str * GFC_DESCRIPTOR_EXTENT(f_ptr_out,i-1);
> > But one could add a "str = 1" to silence the compiler ...
> 
> This looks dumb to begin with.  Just initialize str to 1 and run the for-loop
> from 1 to shapeSize.  Starting at 0 and special casing zero is absurd.
> 

Are you basing your comment on the code posted above or have you 
actually looked at the code in iso_c_biniding.c?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (18 preceding siblings ...)
  2009-09-21 18:01 ` kargl at gcc dot gnu dot org
@ 2009-09-21 18:12 ` nightstrike at gmail dot com
  2009-10-30 22:38 ` jb at gcc dot gnu dot org
                   ` (4 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: nightstrike at gmail dot com @ 2009-09-21 18:12 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #20 from nightstrike at gmail dot com  2009-09-21 18:12 -------
(In reply to comment #19)
> (In reply to comment #18)
> > (In reply to comment #17)
> > > > ../../../../../build/gcc/gcc/libgfortran/intrinsics/iso_c_binding.c:98:24:
> > > > warning: 'str' may be used uninitialized in this function
> > > 
> > > I think this warning is bogus:
> > >       index_type size, str;
> > >       for (i = 0; i < shapeSize; i++)
> > >         {
> > >           if (i == 0)
> > >               str = 1;
> > >           else
> > >               str = str * GFC_DESCRIPTOR_EXTENT(f_ptr_out,i-1);
> > > But one could add a "str = 1" to silence the compiler ...
> > 
> > This looks dumb to begin with.  Just initialize str to 1 and run the for-loop
> > from 1 to shapeSize.  Starting at 0 and special casing zero is absurd.
> > 
> 
> Are you basing your comment on the code posted above or have you 
> actually looked at the code in iso_c_biniding.c?
> 

The code above.  I can't access the source tree atm.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (19 preceding siblings ...)
  2009-09-21 18:12 ` nightstrike at gmail dot com
@ 2009-10-30 22:38 ` jb at gcc dot gnu dot org
  2009-12-29 15:49 ` fxcoudert at gcc dot gnu dot org
                   ` (3 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: jb at gcc dot gnu dot org @ 2009-10-30 22:38 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #21 from jb at gcc dot gnu dot org  2009-10-30 22:37 -------
Subject: Bug 41219

Author: jb
Date: Fri Oct 30 22:37:47 2009
New Revision: 153769

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153769
Log:
PR libfortran/41219 Fix build warnings

Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/intrinsics/iso_c_binding.c
    trunk/libgfortran/intrinsics/unpack_generic.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (20 preceding siblings ...)
  2009-10-30 22:38 ` jb at gcc dot gnu dot org
@ 2009-12-29 15:49 ` fxcoudert at gcc dot gnu dot org
  2010-05-07 16:01 ` dfranke at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  24 siblings, 0 replies; 29+ messages in thread
From: fxcoudert at gcc dot gnu dot org @ 2009-12-29 15:49 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #22 from fxcoudert at gcc dot gnu dot org  2009-12-29 15:48 -------
*** Bug 29313 has been marked as a duplicate of this bug. ***


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (21 preceding siblings ...)
  2009-12-29 15:49 ` fxcoudert at gcc dot gnu dot org
@ 2010-05-07 16:01 ` dfranke at gcc dot gnu dot org
  2010-05-07 17:18 ` nightstrike at gmail dot com
  2010-05-07 17:44 ` sezeroz at gmail dot com
  24 siblings, 0 replies; 29+ messages in thread
From: dfranke at gcc dot gnu dot org @ 2010-05-07 16:01 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #23 from dfranke at gcc dot gnu dot org  2010-05-07 16:00 -------
My build log seems to be clean (i686-pc-linux-gnu).
Is this PR still needed?


-- 

dfranke at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (22 preceding siblings ...)
  2010-05-07 16:01 ` dfranke at gcc dot gnu dot org
@ 2010-05-07 17:18 ` nightstrike at gmail dot com
  2010-05-07 17:44 ` sezeroz at gmail dot com
  24 siblings, 0 replies; 29+ messages in thread
From: nightstrike at gmail dot com @ 2010-05-07 17:18 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #24 from nightstrike at gmail dot com  2010-05-07 17:18 -------
This is for mingw, not linux.

I can test again when our buildbot farm is back up.  Should be in the next few
days.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
  2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
                   ` (23 preceding siblings ...)
  2010-05-07 17:18 ` nightstrike at gmail dot com
@ 2010-05-07 17:44 ` sezeroz at gmail dot com
  24 siblings, 0 replies; 29+ messages in thread
From: sezeroz at gmail dot com @ 2010-05-07 17:44 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #25 from sezeroz at gmail dot com  2010-05-07 17:44 -------
(In reply to comment #23)
> My build log seems to be clean (i686-pc-linux-gnu).
> Is this PR still needed?
> 

The commit from comment #14 (as inlined in comment #9) introduces a new warning
of "passing argument 2 of 'write_default_char4' discards qualifiers from
pointer target type", because write_default_char4() accepts a gfc_char4_t* but
we are sending it a const gfc_char4_t*. Easiest solution would be constifying
the second arg of write_default_char4(), as well as that of write_utf8_char4()
for that matter.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
       [not found] <bug-41219-4@http.gcc.gnu.org/bugzilla/>
  2010-10-14  1:30 ` jvdelisle at gcc dot gnu.org
  2010-10-14  1:31 ` jvdelisle at gcc dot gnu.org
@ 2010-11-01 22:31 ` jvdelisle at gcc dot gnu.org
  2 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu.org @ 2010-11-01 22:31 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219

Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #27 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> 2010-11-01 22:31:00 UTC ---
Fixed now.


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
       [not found] <bug-41219-4@http.gcc.gnu.org/bugzilla/>
  2010-10-14  1:30 ` jvdelisle at gcc dot gnu.org
@ 2010-10-14  1:31 ` jvdelisle at gcc dot gnu.org
  2010-11-01 22:31 ` jvdelisle at gcc dot gnu.org
  2 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu.org @ 2010-10-14  1:31 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219

Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |ASSIGNED
         AssignedTo|unassigned at gcc dot       |jvdelisle at gcc dot
                   |gnu.org                     |gnu.org


^ permalink raw reply	[flat|nested] 29+ messages in thread

* [Bug fortran/41219] libgfortran build warnings
       [not found] <bug-41219-4@http.gcc.gnu.org/bugzilla/>
@ 2010-10-14  1:30 ` jvdelisle at gcc dot gnu.org
  2010-10-14  1:31 ` jvdelisle at gcc dot gnu.org
  2010-11-01 22:31 ` jvdelisle at gcc dot gnu.org
  2 siblings, 0 replies; 29+ messages in thread
From: jvdelisle at gcc dot gnu.org @ 2010-10-14  1:30 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41219

--- Comment #26 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> 2010-10-14 01:29:41 UTC ---
*** Bug 45998 has been marked as a duplicate of this bug. ***


^ permalink raw reply	[flat|nested] 29+ messages in thread

end of thread, other threads:[~2010-11-01 22:31 UTC | newest]

Thread overview: 29+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-09-01 21:09 [Bug fortran/41219] New: libgfortran build warnings burnus at gcc dot gnu dot org
2009-09-03  6:55 ` [Bug fortran/41219] " burnus at gcc dot gnu dot org
2009-09-03  7:12 ` burnus at gcc dot gnu dot org
2009-09-03  7:37 ` burnus at gcc dot gnu dot org
2009-09-03  8:36 ` ktietz at gcc dot gnu dot org
2009-09-04  9:25 ` burnus at gcc dot gnu dot org
2009-09-06 13:55 ` jb at gcc dot gnu dot org
2009-09-06 18:18 ` jvdelisle at gcc dot gnu dot org
2009-09-06 21:21 ` jvdelisle at gcc dot gnu dot org
2009-09-07  2:57 ` jvdelisle at gcc dot gnu dot org
2009-09-07 11:27 ` sezeroz at gmail dot com
2009-09-08  0:59 ` jvdelisle at gcc dot gnu dot org
2009-09-12  5:36 ` nightstrike at gmail dot com
2009-09-12 14:49 ` jvdelisle at gcc dot gnu dot org
2009-09-12 15:08 ` jvdelisle at gcc dot gnu dot org
2009-09-21 16:31 ` nightstrike at gmail dot com
2009-09-21 16:33 ` nightstrike at gmail dot com
2009-09-21 17:01 ` burnus at gcc dot gnu dot org
2009-09-21 17:36 ` nightstrike at gmail dot com
2009-09-21 18:01 ` kargl at gcc dot gnu dot org
2009-09-21 18:12 ` nightstrike at gmail dot com
2009-10-30 22:38 ` jb at gcc dot gnu dot org
2009-12-29 15:49 ` fxcoudert at gcc dot gnu dot org
2010-05-07 16:01 ` dfranke at gcc dot gnu dot org
2010-05-07 17:18 ` nightstrike at gmail dot com
2010-05-07 17:44 ` sezeroz at gmail dot com
     [not found] <bug-41219-4@http.gcc.gnu.org/bugzilla/>
2010-10-14  1:30 ` jvdelisle at gcc dot gnu.org
2010-10-14  1:31 ` jvdelisle at gcc dot gnu.org
2010-11-01 22:31 ` jvdelisle at gcc dot gnu.org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).