Dw2 CIE no longer contains personality routine augmentation?
Dave Korn
dave.korn.cygwin@googlemail.com
Thu Oct 1 00:33:00 GMT 2009
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?
cheers,
DaveK
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