From: Nick Clifton <nickc@redhat.com>
To: Indu Bhagat <indu.bhagat@oracle.com>, binutils@sourceware.org
Cc: weimin.pan@oracle.com
Subject: Re: [PATCH,V1 00/14] Definition and support for SFrame unwind format
Date: Fri, 30 Sep 2022 10:12:31 +0100 [thread overview]
Message-ID: <735c9acd-7ccb-2b84-8952-8ef106aa9057@redhat.com> (raw)
In-Reply-To: <20220930000440.1672106-1-indu.bhagat@oracle.com>
Hi Indu,
> The format specification document still mains a TODO at this time. I plan to
> resume working on this after I have tackled the task of SFrame generation for
> PLT/veneers in aarch64.
I am concerned about this. If you do not have a specification then it is going
to be hard to get the format adopted by third parties. I assume that you would
like tools such as LLVM to support the format, as well as projects like the
Linux kernel. Maybe other commercial interests or academic endeavours. None of
them are going to take the format seriously if there isn't a specification.
> The format is supported on AMD64 and AARCH64 ABIs only.
This is sad and a little bit surprising. I would have at least expected to see
the x86_64 architecture listed as well, and ideally I would like to see a whole
lot more. I do hope that your plans including writing a "How to extended the
SFrame specification/implementation to support a new architecture" document.
> The information stored
> in the .sframe section is a subset of what .eh_frame can convey: .eh_frame can
> convey how to resurrect all callee-saved registers, if need be; but .sframe
> does not.
Is it possible to convert existing .eh_frame sections into equivalent .sframe
sections ?
Cheers
Nick
next prev parent reply other threads:[~2022-09-30 9:12 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-02 8:04 [PATCH,V6 00/10] Definition and Implementation of CTF Frame format Indu Bhagat
2022-08-02 8:04 ` [PATCH,V6 01/10] ctf-frame.h: Add CTF Frame format definition Indu Bhagat
2022-08-15 12:04 ` Nick Clifton
2022-08-02 8:04 ` [PATCH,V6 02/10] gas: add new command line option --gctf-frame Indu Bhagat
2022-08-15 12:07 ` Nick Clifton
2022-08-02 8:04 ` [PATCH,V6 03/10] gas: generate .ctf_frame Indu Bhagat
2022-08-15 12:22 ` Nick Clifton
2022-08-02 8:04 ` [PATCH,V6 04/10] libctfframe: add the CTF Frame library Indu Bhagat
2022-08-15 12:46 ` Nick Clifton
2022-08-02 8:04 ` [PATCH,V6 05/10] libctfframe: add GNU poke pickles for CTF Frame Indu Bhagat
2022-08-15 12:50 ` Nick Clifton
2022-08-02 8:04 ` [PATCH,V6 06/10] bfd: linker: merge .ctf_frame sections Indu Bhagat
2022-08-15 13:02 ` Nick Clifton
2022-08-18 2:11 ` Indu Bhagat
2022-08-02 8:04 ` [PATCH,V6 07/10] readelf/objdump: support for CTF Frame section Indu Bhagat
2022-08-15 13:11 ` Nick Clifton
2022-08-02 8:04 ` [PATCH,V6 08/10] unwinder: generate backtrace using CTF Frame format Indu Bhagat
2022-08-15 13:16 ` Nick Clifton
2022-08-02 8:04 ` [PATCH,V6 09/10] unwinder: Add CTF Frame unwinder tests Indu Bhagat
2022-08-15 13:27 ` Nick Clifton
2022-08-02 8:04 ` [PATCH, V6 10/10] gdb: sim: buildsystem changes to accommodate libctfframe Indu Bhagat
2022-08-05 14:43 ` Tom Tromey
2022-08-15 12:18 ` [PATCH,V6 00/10] Definition and Implementation of CTF Frame format Nick Clifton
2022-08-18 1:38 ` Indu Bhagat
2022-08-15 14:25 ` Nick Clifton
2022-09-30 0:04 ` [PATCH,V1 00/14] Definition and support for SFrame unwind format Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 01/14] sframe.h: Add SFrame format definition Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 02/14] gas: add new command line option --gsframe Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 03/14] gas: generate .sframe from CFI directives Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 04/14] gas: testsuite: add new tests for SFrame unwind info Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 05/14] libsframe: add the SFrame library Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 06/14] bfd: linker: merge .sframe sections Indu Bhagat
2022-09-30 10:51 ` Nick Clifton
2022-09-30 0:04 ` [PATCH,V1 07/14] readelf/objdump: support for SFrame section Indu Bhagat
2022-09-30 11:08 ` Nick Clifton
2022-09-30 0:04 ` [PATCH,V1 08/14] unwinder: generate backtrace using SFrame format Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 09/14] unwinder: Add SFrame unwinder tests Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 10/14] gdb: sim: buildsystem changes to accommodate libsframe Indu Bhagat
2022-10-11 16:08 ` [PATCH, V1 " Tom Tromey
2022-09-30 0:04 ` [PATCH,V1 11/14] libctf: add libsframe to LDFLAGS and LIBS Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 12/14] src-release.sh: Add libsframe Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 13/14] binutils/NEWS: add text for SFrame support Indu Bhagat
2022-09-30 0:04 ` [PATCH,V1 14/14] gas/NEWS: add text about new command line option and " Indu Bhagat
2022-09-30 8:09 ` [PATCH,V1 00/14] Definition and support for SFrame unwind format Jan Beulich
2022-10-04 5:16 ` Indu Bhagat
2022-10-04 6:53 ` Jan Beulich
2022-09-30 8:24 ` Fangrui Song
2022-10-01 0:15 ` Indu Bhagat
2022-09-30 9:12 ` Nick Clifton [this message]
2022-10-01 0:29 ` Indu Bhagat
2022-10-01 9:51 ` Jose E. Marchesi
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