[llvm-dev] Introducing debugger tuning for dbx
Franz Fehringer via llvm-dev
llvm-dev at lists.llvm.org
Fri Mar 26 12:01:10 PDT 2021
Thx again
Am 26.03.2021 um 19:36 schrieb Jinsong Ji:
>
> Yes.
> gdb v8.11 or later (eg: the one from AIX Toolbox
> https://www.ibm.com/support/pages/aix-toolbox-linux-applications-overview
> <https://www.ibm.com/support/pages/aix-toolbox-linux-applications-overview>)
> should be able to debug them.
>
>
> Best,
>
> Jinsong Ji (纪金松), PhD.
>
> XL/LLVM on Power Compiler Development
> E-mail: jji at us.ibm.com
>
> Inactive hide details for Franz Fehringer via llvm-dev ---03/26/2021
> 01:28:32 PM---Thats unfortunate but thx nevertheless. But Franz
> Fehringer via llvm-dev ---03/26/2021 01:28:32 PM---Thats unfortunate
> but thx nevertheless. But debugging clang generated executables with
> gdb should or
>
> From: Franz Fehringer via llvm-dev <llvm-dev at lists.llvm.org>
> To: llvm-dev at lists.llvm.org
> Date: 03/26/2021 01:28 PM
> Subject: [EXTERNAL] Re: [llvm-dev] Introducing debugger tuning for dbx
> Sent by: "llvm-dev" <llvm-dev-bounces at lists.llvm.org>
>
> ------------------------------------------------------------------------
>
>
>
> Thats unfortunate but thx nevertheless.
> But debugging clang generated executables with gdb should or will be
> possible (on AIX)?
>
> Am 26.03.2021 um 17:22 schrieb Jinsong Ji:
>
> Hi Franz:
>
> There is currently no plan of supporting lldb on AIX as far as
> I know.
>
>
> Best,
>
> Jinsong Ji (纪金松), PhD.
>
> XL/LLVM on Power Compiler Development
> E-mail: _jji at us.ibm.com_ <mailto:jji at us.ibm.com>
>
> Inactive hide details for Franz Fehringer via llvm-dev
> ---03/26/2021 10:05:21 AM---While i have no fruitful input
> regarding youFranz Fehringer via llvm-dev ---03/26/2021
> 10:05:21 AM---While i have no fruitful input regarding your
> question(s), just out of curiosity: What ist the stat
>
> From: Franz Fehringer via llvm-dev _<llvm-dev at lists.llvm.org>_
> <mailto:llvm-dev at lists.llvm.org>
> To: _llvm-dev at lists.llvm.org_ <mailto:llvm-dev at lists.llvm.org>
> Date: 03/26/2021 10:05 AM
> Subject: [EXTERNAL] Re: [llvm-dev] Introducing debugger tuning
> for dbx
> Sent by: "llvm-dev" _<llvm-dev-bounces at lists.llvm.org>_
> <mailto:llvm-dev-bounces at lists.llvm.org>
> ------------------------------------------------------------------------
>
>
>
> While i have no fruitful input regarding your question(s),
> just out of curiosity: What ist the state of affairs for lldb
> on AIX?
>
> Am 26.03.2021 um 14:16 schrieb Zheng CZ Chen via llvm-dev:
> Hi，
>
> As some of you may know [1]，we are working on
> AIX support. Part of the AIX support is debug
> support, supporting dbx as the consumer of
> clang DWARF information [2].
>
> While the dbx team is also working on
> improving its dwarf support, there are
> limitations in foreseeable future. Also there
> are situations on AIX that end user may not
> get up to date debugger.
>
> So we are considering doing some compatibly
> work in clang/llvm to help improving user
> experience.
>
> There are some limitations in dbx we know so far:
> o .dwstr section is not
> supported for now;
> o column-info in the line table
> not supported for now;
> o sub-optimal handling of
> unsupported dwarf tags. Eg:
> dbx support dwarf 3, but
> misbehaving with new DWARF 5
> tags DW_LANG_C_plus_plus_14 [3].
>
> As discussed with the reviewers in patch [3],
> we are considering introducing a new tuning
> debugger tuning option for dbx,
> -debugger-tuning=dbx [4], so that we can
> change some option
> default on AIX for dbx to accommodate its
> limitations, eg; -gno-column-info.
>
> Any thoughts about the direction here? Reviews
> and feedback to [3][4] are also appreciated.
>
> [1]:
> _https://lists.llvm.org/pipermail/llvm-dev/2019-February/130175.html_
> <https://lists.llvm.org/pipermail/llvm-dev/2019-February/130175.html>
> [2]:
> _https://reviews.llvm.org/rGafa76fe67a42f6d40d83a4f7d0cb03373045f3f4_
> <https://reviews.llvm.org/rGafa76fe67a42f6d40d83a4f7d0cb03373045f3f4>
> [3]: _https://reviews.llvm.org/D99250_
> <https://reviews.llvm.org/D99250>
> [4]: _https://reviews.llvm.org/D99400_
> <https://reviews.llvm.org/D99400>
>
> Thanks!
>
> BRS//
> Chen Zheng
> Power Compiler Backend Developer
>
>
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