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* [Bug libffi/46661] New: 32-bit cls_pointer.c, cls_pointer_stack.c FAIL on IRIX 6.5
@ 2010-11-25 18:01 ro at gcc dot gnu.org
  2011-02-08 11:46 ` [Bug libffi/46661] " ro at gcc dot gnu.org
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: ro at gcc dot gnu.org @ 2010-11-25 18:01 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46661

           Summary: 32-bit cls_pointer.c, cls_pointer_stack.c FAIL on IRIX
                    6.5
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libffi
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ro@gcc.gnu.org
                CC: green@redhat.com, andreast@gcc.gnu.org
              Host: mips-sgi-irix6.5
            Target: mips-sgi-irix6.5
             Build: mips-sgi-irix6.5


For the 32-bit N32 ABI, cls_pointer.c and cls_pointer_stack.c fail on IRIX 6.5:

FAIL: libffi.call/cls_pointer.c -O0 -W -Wall (test for excess errors)
Excess errors:
/vol/gcc/src/hg/trunk/irix/libffi/testsuite/libffi.call/cls_pointer.c: In
function 'main':
/vol/gcc/src/hg/trunk/irix/libffi/testsuite/libffi.call/cls_pointer.c:68:8:
warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

FAIL: libffi.call/cls_pointer_stack.c -O0 -W -Wall (test for excess errors)
Excess errors:
/vol/gcc/src/hg/trunk/irix/libffi/testsuite/libffi.call/cls_pointer_stack.c: In
function 'main':
/vol/gcc/src/hg/trunk/irix/libffi/testsuite/libffi.call/cls_pointer_stack.c:132:8:
warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

In both cases, a void * is casted to ffi_arg, which in the N32 case is

#  ifdef FFI_MIPS_O32
/* O32 stack frames have 32bit integer args */
typedef unsigned int     ffi_arg __attribute__((__mode__(__SI__)));
typedef signed   int     ffi_sarg __attribute__((__mode__(__SI__)));
#else
/* N32 and N64 frames have 64bit integer args */
typedef unsigned int     ffi_arg __attribute__((__mode__(__DI__)));
typedef signed   int     ffi_sarg __attribute__((__mode__(__DI__)));
#  endif

(cf. src/mips/ffitarget.h), i.e. a 64-bit type.

I'm not sure what the best way is to portably fix this.


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2011-02-09 14:43 UTC | newest]

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-- links below jump to the message on this page --
2010-11-25 18:01 [Bug libffi/46661] New: 32-bit cls_pointer.c, cls_pointer_stack.c FAIL on IRIX 6.5 ro at gcc dot gnu.org
2011-02-08 11:46 ` [Bug libffi/46661] " ro at gcc dot gnu.org
2011-02-09 10:28 ` ro at gcc dot gnu.org
2011-02-09 14:43 ` ro at gcc dot gnu.org
2011-02-09 15:11 ` ro at gcc dot gnu.org

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