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From: Tom Tromey <tom@tromey.com>
To: Simon Marchi <simark@simark.ca>
Cc: Tom Tromey <tom@tromey.com>, gdb-patches@sourceware.org
Subject: Re: [PATCH v2 07/16] Remove the exec_bfd macro
Date: Tue, 20 Oct 2020 15:20:42 -0600	[thread overview]
Message-ID: <87mu0gd26t.fsf@tromey.com> (raw)
In-Reply-To: <8c4c1ec0-cdc9-ebc9-26fa-216f59493d9b@simark.ca> (Simon Marchi's message of "Tue, 20 Oct 2020 10:24:56 -0400")

Simon> Maybe just check for lines that are too long after the replacement.

Will do.

>> -      add_target_sections (&exec_bfd, sections);
>> +      add_target_sections (&current_program_space->ebfd, sections);

Simon> It's odd that the owner of these sections is the address of the ebfd
Simon> field in the program_space structure, and not the bfd pointer itself.
Simon> Do you know if this is done on purpose?

There's probably no good reason for it, though I'm not completely sure.

Simon> I don't see anything that could change the value of exec bfd in the mean
Simon> time, that would make the "owner" value of these sections stale.  So I
Simon> believe it would be safe to use `current_program_space->exec_bfd ()` as
Simon> the owner.

Or even just the program space itself.
The value is really just a cookie to make sure that different callers
don't accidentally clash.

Tom

  reply	other threads:[~2020-10-20 21:20 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-19 21:44 [PATCH v2 00/16] Remove some macros from exec.h and progspace.h Tom Tromey
2020-10-19 21:44 ` [PATCH v2 01/16] Add target_section constructor Tom Tromey
2020-10-19 21:44 ` [PATCH v2 02/16] Remove exec_filename macro Tom Tromey
2020-10-19 21:44 ` [PATCH v2 03/16] Change exec_close to be a method on program_space Tom Tromey
2020-10-19 21:44 ` [PATCH v2 04/16] Remove commented-out code from gcore.c Tom Tromey
2020-10-20 14:01   ` [PP?] " Simon Marchi
2020-10-29  1:19     ` Tom Tromey
2020-10-19 21:44 ` [PATCH v2 05/16] Remove exec_bfd_mtime define Tom Tromey
2020-10-19 21:44 ` [PATCH v2 06/16] Remove current_target_sections macro Tom Tromey
2020-10-19 21:44 ` [PATCH v2 07/16] Remove the exec_bfd macro Tom Tromey
2020-10-20 14:24   ` Simon Marchi
2020-10-20 21:20     ` Tom Tromey [this message]
2020-10-20 21:34       ` Simon Marchi
2020-10-19 21:44 ` [PATCH v2 08/16] Change program_space::ebfd to a gdb_bfd_ref_ptr Tom Tromey
2020-10-19 21:44 ` [PATCH v2 09/16] Remove symfile_objfile macro Tom Tromey
2020-10-19 21:44 ` [PATCH v2 10/16] Change clear_program_space_solib_cache to method on program_space Tom Tromey
2020-10-19 21:44 ` [PATCH v2 11/16] Change program_space_empty_p " Tom Tromey
2020-10-19 21:44 ` [PATCH v2 12/16] Change remove_target_sections " Tom Tromey
2020-10-20 14:40   ` [PP?] " Simon Marchi
2020-10-29  1:24     ` Tom Tromey
2020-10-19 21:44 ` [PATCH v2 13/16] Change add_target_sections " Tom Tromey
2020-10-19 21:44 ` [PATCH v2 14/16] Change add_target_sections_of_objfile " Tom Tromey
2020-10-19 21:44 ` [PATCH v2 15/16] Don't change current program space in exec_target::close Tom Tromey
2020-10-19 21:44 ` [PATCH v2 16/16] Remove call to exec_close Tom Tromey
2020-10-20 14:46 ` [PP?] [PATCH v2 00/16] Remove some macros from exec.h and progspace.h Simon Marchi
2020-10-29 21:06   ` Tom Tromey

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