From: Simon Marchi <simon.marchi@efficios.com>
To: Pedro Alves <palves@redhat.com>,
Simon Marchi <simon.marchi@polymtl.ca>,
gdb-patches@sourceware.org
Cc: Jon Turney <jon.turney@dronecode.org.uk>
Subject: Re: [PATCH 6/7] gdb: select "Cygwin" OS ABI for Cygwin binaries
Date: Thu, 2 Apr 2020 10:01:29 -0400 [thread overview]
Message-ID: <9e593882-37cd-c730-9cde-75af5df820c4@efficios.com> (raw)
In-Reply-To: <e6efb420-e8f2-41f4-5b09-a95ebebd71a3@redhat.com>
On 2020-04-02 9:56 a.m., Pedro Alves wrote:
> On 4/1/20 10:53 PM, Simon Marchi via Gdb-patches wrote:
>> However, when BFD maps the file/section data in memory for GDB to read, is that mapping
>> guaranteed to be sufficiently aligned as well?
>
> I think so. If bfd heap allocates, then memory will be aligned to the word size at
> least. If bfd mmaps, then memory will be aligned to page size. And then if the
> data structures are aligned, we should be good.
Following this message from Tom [1], I'm going to change the code to use
bfd_get_full_section_contents and store the data into a pre-allocated gdb::byte_vector.
Does that change anything?
[1] https://marc.info/?l=gdb-patches&m=158583388704648&w=2
Simon
next prev parent reply other threads:[~2020-04-02 14:01 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-16 17:08 [PATCH 0/7] Add "Windows" OS ABI Simon Marchi
2020-03-16 17:08 ` [PATCH 1/7] gdb: recognize 64 bits Windows executables as Cygwin osabi Simon Marchi
2020-03-16 17:08 ` [PATCH 2/7] gdb: move enum gdb_osabi to osabi.h Simon Marchi
2020-03-16 17:08 ` [PATCH 3/7] gdb: add Windows OS ABI Simon Marchi
2020-03-16 17:08 ` [PATCH 4/7] gdb: rename i386-cygwin-tdep.c to i386-windows-tdep.c Simon Marchi
2020-03-16 17:08 ` [PATCH 5/7] gdb: rename content of i386-windows-tdep.c, cygwin to windows Simon Marchi
2020-03-16 17:08 ` [PATCH 6/7] gdb: select "Cygwin" OS ABI for Cygwin binaries Simon Marchi
2020-03-16 18:16 ` Christian Biesinger
2020-03-16 18:18 ` Simon Marchi
2020-03-16 19:03 ` Jon Turney
2020-03-16 21:00 ` Simon Marchi
2020-04-01 19:05 ` Tom Tromey
2020-04-01 19:25 ` Simon Marchi
2020-04-01 21:36 ` Pedro Alves
2020-04-01 21:53 ` Simon Marchi
2020-04-02 13:56 ` Pedro Alves
2020-04-02 14:01 ` Simon Marchi [this message]
2020-04-02 14:03 ` Pedro Alves
2020-04-02 14:08 ` Simon Marchi
2020-04-02 14:17 ` Simon Marchi
2020-04-02 13:22 ` Tom Tromey
2020-04-02 14:55 ` [PATCH] gdb: use bfd_get_section_contents to read section contents in, is_linked_with_cygwin_dll (was: Re: [PATCH 6/7] gdb: select "Cygwin" OS ABI for Cygwin binaries) Simon Marchi
2020-04-02 14:57 ` [PATCH] gdb: use bfd_get_section_contents to read section contents in, is_linked_with_cygwin_dll Simon Marchi
2020-04-02 19:01 ` Tom Tromey
2020-04-02 19:42 ` Simon Marchi
2020-04-02 19:45 ` Tom Tromey
2020-04-02 19:47 ` Simon Marchi
2020-03-16 17:08 ` [PATCH 7/7] gdb: define builtin long type to be 64 bits on amd64 Cygwin Simon Marchi
2020-03-16 17:46 ` [PATCH 0/7] Add "Windows" OS ABI Eli Zaretskii
2020-03-16 17:48 ` Simon Marchi
2020-03-16 19:04 ` Jon Turney
2020-04-01 21:42 ` Pedro Alves
2020-04-01 21:56 ` Simon Marchi
2020-04-02 3:06 ` [PATCH] gdb: stop using host-dependent signal numbers in, windows-tdep.c (was: Re: [PATCH 0/7] Add "Windows" OS ABI) Simon Marchi
2020-04-02 14:00 ` [PATCH] gdb: stop using host-dependent signal numbers in, windows-tdep.c Pedro Alves
2020-04-02 14:02 ` Simon Marchi
2020-04-02 15:12 ` Eli Zaretskii
2020-04-08 12:45 ` Jon Turney
2020-04-08 18:16 ` Simon Marchi
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