[Bug target/53539] New: Different __WCHAR_TYPE__/wchar_t for gcc -m32 on Linux/i386 and Linux/x86-64

[Bug target/53539] New: Different __WCHAR_TYPE__/wchar_t for gcc -m32 on Linux/i386 and Linux/x86-64

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53539

             Bug #: 53539
           Summary: Different __WCHAR_TYPE__/wchar_t for gcc -m32 on
                    Linux/i386 and Linux/x86-64
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com
                CC: ubizjak@gmail.com


From

http://gcc.gnu.org/ml/gcc/2012-05/msg00397.html

On Linux/i386:

[hjl@gnu-29 ~]$ echo __WCHAR_TYPE__ | gcc -E -
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
long int
[hjl@gnu-29 ~]$

On Linux/x86-64:

[hjl@gnu-6 include]$ echo __WCHAR_TYPE__ | gcc -m32 -E -
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
int
[hjl@gnu-6 include]$ echo __WCHAR_TYPE__ | gcc -mx32 -E -
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
int
[hjl@gnu-6 include]$ echo __WCHAR_TYPE__ | gcc -m64 -E -
# 1 "<stdin>"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "<stdin>"
int
[hjl@gnu-6 include]$

http://gcc.gnu.org/ml/gcc/2012-05/msg00398.html

That's a bug.  Not a very serious one - it doesn't affect C++ name 
mangling because wchar_t is a built-in type in C++, with its own mangling 
- but still a bug.  The choice of underlying type for wchar_t should not 
depend on what the compiler defaults to like that.  (Actually, it looks 
like a 32-bit-default compiler built --enable-targets=all also uses "int" 
here.)

[Bug target/53539] Different __WCHAR_TYPE__/wchar_t for gcc -m32 on Linux/i386 and Linux/x86-64

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53539

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-p
                   |                            |atches/2012-05/msg02082.htm
                   |                            |l

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2012-06-03 17:18:50 UTC ---
A patch is posted at

http://gcc.gnu.org/ml/gcc-patches/2012-05/msg02082.html

[Bug target/53539] Different __WCHAR_TYPE__/wchar_t for gcc -m32 on Linux/i386 and Linux/x86-64

[hjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53539

--- Comment #2 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> 2012-06-29 22:21:35 UTC ---
Author: hjl
Date: Fri Jun 29 22:21:30 2012
New Revision: 189085

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189085
Log:
Use int for WCHAR_TYPE only for TARGET_LP64

    PR target/53539
    * config/i386/gnu-user64.h (WCHAR_TYPE): Use "int" only for
    TARGET_LP64.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/gnu-user64.h

[Bug target/53539] Different __WCHAR_TYPE__/wchar_t for gcc -m32 on Linux/i386 and Linux/x86-64

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53539

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |4.8.0

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed.