From: Tom Tromey <tromey@adacore.com>
To: Tom de Vries via Gdb-patches <gdb-patches@sourceware.org>
Cc: Tom de Vries <tdevries@suse.de>
Subject: Re: [PATCH v2 4/6] [gdb/symtab] Fix data race on bfd_last_cache
Date: Wed, 02 Aug 2023 13:37:08 -0600 [thread overview]
Message-ID: <87fs51dymz.fsf@tromey.com> (raw)
In-Reply-To: <20230802095305.3668-5-tdevries@suse.de> (Tom de Vries via Gdb-patches's message of "Wed, 2 Aug 2023 11:53:03 +0200")
>>>>> "Tom" == Tom de Vries via Gdb-patches <gdb-patches@sourceware.org> writes:
Tom> The race is between:
Tom> - a worker thread calling main_name (), and in the process reading
Tom> bfd_last_cache, and
Tom> - the main thread writing to bfd_last_cache.
Tom> Fix this by calling main_name () from the main thread.
It seems to me that index-write.c should not be calling main_name.
main_name might iterate over objfiles, but writing when writing an index
for a specific objfile, only that objfile's notion of "main" should be
considered.
Instead maybe this code can just query the cooked index directly.
Tom
next prev parent reply other threads:[~2023-08-02 19:37 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-02 9:52 [PATCH v2 0/6] [gdb/symtab] Fix data-races in gdb.base/index-cache.exp Tom de Vries
2023-08-02 9:53 ` [PATCH v2 1/6] [gdb/symtab] Fix data race on index_cache::m_enabled Tom de Vries
2023-08-02 19:29 ` Tom Tromey
2023-08-04 0:08 ` Tom de Vries
2023-08-02 9:53 ` [PATCH v2 2/6] [gdb/symtab] Fix data race on bfd::{cacheable,format} Tom de Vries
2023-08-02 19:32 ` Tom Tromey
2023-08-04 0:09 ` Tom de Vries
2023-08-04 15:57 ` Tom Tromey
2023-08-02 9:53 ` [PATCH v2 3/6] [gdb/symtab] Fix race on dwarf2_per_cu_data::{queued,is_debug_type} Tom de Vries
2023-08-02 19:34 ` [PATCH v2 3/6] [gdb/symtab] Fix race on dwarf2_per_cu_data::{queued, is_debug_type} Tom Tromey
2023-08-02 9:53 ` [PATCH v2 4/6] [gdb/symtab] Fix data race on bfd_last_cache Tom de Vries
2023-08-02 19:37 ` Tom Tromey [this message]
2023-08-03 14:04 ` Tom de Vries
2023-08-02 9:53 ` [PATCH v2 5/6] [gdb/symtab] Fix data race on dwarf2_per_cu_data::{m_header_read_in,is_debug_type} Tom de Vries
2023-08-02 19:39 ` [PATCH v2 5/6] [gdb/symtab] Fix data race on dwarf2_per_cu_data::{m_header_read_in, is_debug_type} Tom Tromey
2023-08-02 9:53 ` [PATCH v2 6/6] [gdb/testsuite] Extend gdb.base/index-cache.exp Tom de Vries
2023-08-02 19:41 ` Tom Tromey
2023-08-02 19:44 ` [PATCH v2 0/6] [gdb/symtab] Fix data-races in gdb.base/index-cache.exp Tom Tromey
2023-08-04 0:14 ` Tom de Vries
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87fs51dymz.fsf@tromey.com \
--to=tromey@adacore.com \
--cc=gdb-patches@sourceware.org \
--cc=tdevries@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).