Bug#716736: gcc hppa64

2013-09-30 Thread John David Anglin

On 16-Jul-13, at 5:27 AM, Matthias Klose wrote:


Am 15.07.2013 03:26, schrieb John David Anglin:

On 12-Jul-13, at 6:52 AM, Matthias Klose wrote:


I'm not aware of any change in -6 which could have caused that.


It appears the change that exposed the bug was the installation of  
eglibc 2.17-7.


The stdc-predef.h header is now included automatically.  It includes
bits/predefs.h.

The hppa64 header search starts from /usr/hppa64-linux-gnu/include  
which is
linked to /usr/include.  There isn't multiarch support so the  
compiler doesn't find

bits/predefs.h in /usr/include/hppa-linux-gnu.

There is no glibc port for hppa64 linux.

I think the problem was introduced by the following change to gcc:

2012-10-23  Joseph Myers  jos...@codesourcery.com

   * config.gcc (*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu |
   *-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu): Use
   glibc-c.o in c_target_objs and cxx_target_objs.  Use t-glibc  
in

   tmake_file.  Set target_has_targetcm.
   (tilegx-*-linux*, tilepro-*-linux*): Append to c_target_objs  
and

   cxx_target_objs rather than overriding previous value.
   * config/glibc-c.c, config/t-glibc: New.
   * doc/tm.texi.in (TARGET_C_PREINCLUDE): New @hook.
   * doc/tm.texi: Regenerate.
   * hooks.c (hook_constcharptr_void_null): New.
   * hooks.h (hook_constcharptr_void_null): Declare.

It may be possible to disable this in config.gcc.


maybe. Or ship a symlink /usr/include/hppa64-linux-gnu - hppa-linux- 
gnu. The
file just needs to be found, nothing else should use it.  However I  
didn't look
if the multiarch triplet for hppa64-linux-gnu is set, or correctly  
set.


Please close this bug.  The problem was resolved by a change to my  
build system

configuration.

/usr/hppa64-linux-gnu/include was a symlink to /usr/include.  This  
together
with the configure option --includedir=/usr/hppa64-linux-gnu/include  
and new predef
support caused the build error.  Simply changing /usr/hppa64-linux-gnu/ 
include to

a real directory avoids the problem.

Nothing is actually installed in /usr/hppa64-linux-gnu/include, so it  
probably doesn't need to exist.


The symbolic link on my system dates back to 2010.  I can't remember  
if it was an experiment

on my part or not.

I'm going to remove adding pa/t-linux to tmake_file in the hppa64  
config.gcc hunk in the near
future.  pa/t-linux defines MULTIARCH_DIRNAME to hppa-linux-gnu.   
Aside from probably being
wrong, I don't think the hppa64 compiler needs to be multiarch at this  
time.


The symlink /usr/include/hppa64-linux-gnu - hppa-linux-gnu didn't help.

Thanks,
Dave
--
John David Anglin   dave.ang...@bell.net


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Bug#716736: gcc hppa64

2013-07-16 Thread John David Anglin

On 7/16/2013 5:27 AM, Matthias Klose wrote:

Am 15.07.2013 03:26, schrieb John David Anglin:

On 12-Jul-13, at 6:52 AM, Matthias Klose wrote:


I'm not aware of any change in -6 which could have caused that.

It appears the change that exposed the bug was the installation of eglibc 
2.17-7.

The stdc-predef.h header is now included automatically.  It includes
bits/predefs.h.

The hppa64 header search starts from /usr/hppa64-linux-gnu/include which is
linked to /usr/include.  There isn't multiarch support so the compiler doesn't 
find
bits/predefs.h in /usr/include/hppa-linux-gnu.

There is no glibc port for hppa64 linux.

I think the problem was introduced by the following change to gcc:

2012-10-23  Joseph Myers  jos...@codesourcery.com

 * config.gcc (*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu |
 *-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu): Use
 glibc-c.o in c_target_objs and cxx_target_objs.  Use t-glibc in
 tmake_file.  Set target_has_targetcm.
 (tilegx-*-linux*, tilepro-*-linux*): Append to c_target_objs and
 cxx_target_objs rather than overriding previous value.
 * config/glibc-c.c, config/t-glibc: New.
 * doc/tm.texi.in (TARGET_C_PREINCLUDE): New @hook.
 * doc/tm.texi: Regenerate.
 * hooks.c (hook_constcharptr_void_null): New.
 * hooks.h (hook_constcharptr_void_null): Declare.

It may be possible to disable this in config.gcc.

maybe. Or ship a symlink /usr/include/hppa64-linux-gnu - hppa-linux-gnu. The
file just needs to be found, nothing else should use it.  However I didn't look
if the multiarch triplet for hppa64-linux-gnu is set, or correctly set.
I have a patch that disables the predef support and it allows the hppa64 
package to build.
Without patch, build fails trying to build libgcc due to same predef 
error.  However, I don't think
header access really works because the multiarch directy isn't being 
accessed..


I tried to enable multiarch support last night but it didn't work. Don't 
know why.  Just added

the configure options to the hppa64 configure options in rules2.

In config.gcc, we add pa/t-linux to tmake_file for hppa*64*-*-linux*.  
pa/t-linux defines
MULTIARCH_DIRNAME = $(call if_multiarch,hppa-linux-gnu), so I thought 
cc1 should
search for hppa-linux-gnu instead of hppa64-linux-gnu.  Possibly, we 
should introduce
a t-linux64 and make the multiarch directory hppa64-linux-gnu, then add 
the link that you

suggest.

Somehow I think the multiarch stuff is not working because we have a 
cross.  Will try to debug

more tonight.

Dave


--
John David Anglindave.ang...@bell.net


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Bug#716736: gcc hppa64

2013-07-14 Thread John David Anglin

On 12-Jul-13, at 6:52 AM, Matthias Klose wrote:


I'm not aware of any change in -6 which could have caused that.


It appears the change that exposed the bug was the installation of  
eglibc 2.17-7.


The stdc-predef.h header is now included automatically.  It includes  
bits/predefs.h.


The hppa64 header search starts from /usr/hppa64-linux-gnu/include  
which is
linked to /usr/include.  There isn't multiarch support so the compiler  
doesn't find

bits/predefs.h in /usr/include/hppa-linux-gnu.

There is no glibc port for hppa64 linux.

I think the problem was introduced by the following change to gcc:

2012-10-23  Joseph Myers  jos...@codesourcery.com

* config.gcc (*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu |
*-*-knetbsd*-gnu | *-*-gnu* | *-*-kopensolaris*-gnu): Use
glibc-c.o in c_target_objs and cxx_target_objs.  Use t-glibc in
tmake_file.  Set target_has_targetcm.
(tilegx-*-linux*, tilepro-*-linux*): Append to c_target_objs  
and

cxx_target_objs rather than overriding previous value.
* config/glibc-c.c, config/t-glibc: New.
* doc/tm.texi.in (TARGET_C_PREINCLUDE): New @hook.
* doc/tm.texi: Regenerate.
* hooks.c (hook_constcharptr_void_null): New.
* hooks.h (hook_constcharptr_void_null): Declare.

It may be possible to disable this in config.gcc.

Dave
--
John David Anglin   dave.ang...@bell.net


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Bug#716736: gcc hppa64

2013-07-12 Thread Matthias Klose
Control: tag -1 + moreinfo help

I'm not aware of any change in -6 which could have caused that.


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