On Thu, Oct 1, 2009 at 2:47 AM, Dave Korn <dave.korn.cyg...@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 tr...@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 > >
