Dw2 CIE no longer contains personality routine augmentation?

[Richard Guenther]

On Thu, Oct 1, 2009 at 2:47 AM, Dave Korn
<dave.korn.cygwin@googlemail.com> wrote:
>
>    Hi everyone,
>
>  I'm using g++.old-deja/g++.brendan/new3.C as a testcase to investigate a
> problem with dllimport at the moment, and noticed something a bit unusual:
>
>  Here is the CIE data from new3.C as compiled with gcc-4.3.4
>
>>       .section        .eh_frame,"w"
>> Lframe1:
>>       .long   LECIE1-LSCIE1
>> LSCIE1:
>>       .long   0x0
>>       .byte   0x1
>>       .def    ___gxx_personality_v0;  .scl    2;      .type   32;     .endef
>>       .ascii "zP\0"
>>       .uleb128 0x1
>>       .sleb128 -4
>>       .byte   0x8
>>       .uleb128 0x5
>>       .byte   0x0
>>       .long   ___gxx_personality_v0
>>       .byte   0xc
>>       .uleb128 0x4
>>       .uleb128 0x4
>>       .byte   0x88
>>       .uleb128 0x1
>>       .align 4
>> LECIE1:
>
>  And now with gcc trunk@152230, I see that the generated CIE no longer has
> any augmentation, particularly it doesn't point to the personality routine any
> more:
>
>> LFE21:
>>       .section        .eh_frame,"w"
>> Lframe1:
>>       .long   LECIE1-LSCIE1
>> LSCIE1:
>>       .long   0x0
>>       .byte   0x1
>>       .ascii "\0"
>>       .uleb128 0x1
>>       .sleb128 -4
>>       .byte   0x8
>>       .byte   0xc
>>       .uleb128 0x4
>>       .uleb128 0x4
>>       .byte   0x88
>>       .uleb128 0x1
>>       .align 4
>> LECIE1:
>
>  Is this intentional?

Yes.  If it doesn't need one it doesn't get one.

Richard.

>    cheers,
>      DaveK
>
>