From: Dave Korn <dave.korn.cygwin@googlemail.com>
To: "gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
Subject: Dw2 CIE no longer contains personality routine augmentation?
Date: Thu, 01 Oct 2009 00:33:00 -0000 [thread overview]
Message-ID: <4AC3FC1B.4080805@gmail.com> (raw)
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
next reply other threads:[~2009-10-01 0:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-01 0:33 Dave Korn [this message]
2009-10-01 8:38 ` Richard Guenther
2009-10-01 12:40 ` Dave Korn
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