From: "H.J. Lu" <hjl.tools@gmail.com>
To: Dehao Chen <dehao@google.com>
Cc: Andrew Pinski <pinskia@gmail.com>, Mark Wielaard <mark@klomp.org>,
Bryce McKinlay <bmckinlay@gmail.com>,
Andrew Haley <aph@redhat.com>, Richard Henderson <rth@redhat.com>,
Jason Merrill <jason@redhat.com>,
Richard Guenther <richard.guenther@gmail.com>,
GCC Patches <gcc-patches@gcc.gnu.org>,
David Li <davidxl@google.com>,
java@gcc.gnu.org
Subject: Re: [PATCH] Set correct source location for deallocator calls
Date: Sat, 15 Sep 2012 18:06:00 -0000 [thread overview]
Message-ID: <CAMe9rOoKO3rohszZ8KnZKxVADLXQvddeAronnL=J655T4_Lx8Q@mail.gmail.com> (raw)
In-Reply-To: <CAO2gOZUaAjLSmOj-TfSxgVEwxgN349SgePyJaxWhnJqF7iUxuw@mail.gmail.com>
On Sat, Sep 15, 2012 at 9:09 AM, Dehao Chen <dehao@google.com> wrote:
> I tried the up-to-date addr2line on any "gcc -g" generated code, it
> does not work either. This is because in the new dwarf, the
> DW_AT_high_pc now actually means the size. e.g.
>
> <1><9b>: Abbrev Number: 2 (DW_TAG_subprogram)
> <9c> DW_AT_external : 1
> <9c> DW_AT_name : bar
> <a0> DW_AT_decl_file : 1
> <a1> DW_AT_decl_line : 8
> <a2> DW_AT_linkage_name: (indirect string, offset: 0x7b): _Z3barv
> <a6> DW_AT_type : <0x8d>
> <aa> DW_AT_low_pc : 0x400583
> <b2> DW_AT_high_pc : 0x37 0x0
> <ba> DW_AT_frame_base : 1 byte block: 9c (DW_OP_call_frame_cfa)
> <bc> DW_AT_GNU_all_call_sites: 1
> <bc> DW_AT_sibling : <0xff>
>
> However, addr2line still thinks DW_AT_high_pc means "high_pc". I think
> we should wait for binutil to catch up with gcc.
>
So, the meaning of DW_AT_high_pc in DWARF4 is different
from DWARF3?
--
H.J.
next prev parent reply other threads:[~2012-09-15 18:06 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAO2gOZXfnETUe4wqjT7p6fd61hXreu9PDfqKxNz+HxpE0E7K0g@mail.gmail.com>
[not found] ` <CAO2gOZX_hZ1m0xKvxUg+6gWTOX4V5ok-vvCEg3Vhfpt=qXj8-g@mail.gmail.com>
[not found] ` <CAFiYyc00wud5Oa3k51ntm8KeZHZnfm4rpnBsOJjURZMcoqFdTA@mail.gmail.com>
[not found] ` <50228C38.5080703@redhat.com>
[not found] ` <CAO2gOZUbkTsnJ2fwgeNhcRmxkzzJEifECeiF=_YRUjeKDeRMdA@mail.gmail.com>
[not found] ` <502294A1.3060800@redhat.com>
[not found] ` <50243480.7090803@redhat.com>
[not found] ` <CAO2gOZURCuWUk2MVwCwmwrijNzWxJt3q=HUpU7=Qv6zB9e-uqA@mail.gmail.com>
[not found] ` <50254A50.8070208@redhat.com>
[not found] ` <CAO2gOZXhHuFGJ0z=jvkYKZ84EoDaPSYVjxS7QzGore56SyhWyQ@mail.gmail.com>
[not found] ` <50255B35.9020705@redhat.com>
[not found] ` <CAO2gOZWe+qMrVyvOoo7Ek-di0NKZxxU4Z=pqrDCqqCCAfctZOw@mail.gmail.com>
[not found] ` <50258712.4070002@redhat.com>
[not found] ` <CAO2gOZUQQjmKtooyXXAfgFoNVbeNwtT+P=E7pQ6jC=e07Nsr2g@mail.gmail.com>
[not found] ` <CAO2gOZX-Gn+b6LEzps5zxhgmwQWcJ-zFqG=a7hesW6fbVyxZYQ@mail.gmail.com>
[not found] ` <502E6774.8050609@redhat.com>
[not found] ` <CAO2gOZWhueDAShNLbNcJpkHA6QqXk1LNZhEMFvfT77aTZTCH9w@mail.gmail.com>
2012-08-30 14:28 ` Richard Henderson
2012-08-30 14:45 ` Bryce McKinlay
2012-08-30 15:20 ` Andrew Haley
2012-08-30 16:33 ` Richard Henderson
2012-09-04 16:07 ` Dehao Chen
2012-09-04 16:22 ` Andrew Haley
2012-09-04 20:40 ` Dehao Chen
2012-09-04 16:32 ` Bryce McKinlay
2012-09-04 16:40 ` Andrew Haley
2012-09-04 17:08 ` Bryce McKinlay
2012-09-04 17:12 ` Andrew Haley
2012-09-04 17:17 ` Bryce McKinlay
2012-09-04 17:21 ` Andrew Haley
2012-09-04 20:32 ` Dehao Chen
2012-09-05 7:29 ` Andrew Haley
2012-09-05 7:31 ` Andrew Pinski
2012-09-05 9:58 ` Mark Wielaard
2012-09-08 21:42 ` Dehao Chen
2012-09-14 15:14 ` Dehao Chen
2012-09-14 15:20 ` Andrew Haley
2012-09-15 4:25 ` H.J. Lu
2012-09-15 4:27 ` H.J. Lu
2012-09-15 4:27 ` Andrew Pinski
2012-09-15 12:55 ` H.J. Lu
2012-09-15 16:09 ` Dehao Chen
2012-09-15 18:06 ` H.J. Lu [this message]
2012-09-15 22:03 ` Dehao Chen
2012-09-15 22:31 ` Mark Wielaard
2012-09-15 22:39 ` Mark Wielaard
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