From: Tom Tromey <tom@tromey.com>
To: Tom Tromey via Gdb-patches <gdb-patches@sourceware.org>
Cc: Tom Tromey <tromey@adacore.com>
Subject: Re: [PATCH] Read Ada main name from executable, not inferior
Date: Tue, 05 Sep 2023 09:54:41 -0600 [thread overview]
Message-ID: <87bkegobsu.fsf@tromey.com> (raw)
In-Reply-To: <20230823171120.2566006-1-tromey@adacore.com> (Tom Tromey via Gdb-patches's message of "Wed, 23 Aug 2023 11:11:20 -0600")
>>>>> "Tom" == Tom Tromey via Gdb-patches <gdb-patches@sourceware.org> writes:
Tom> An upstream bug report points out this bug: if the user switches from
Tom> one Ada executable to another without "kill"ing the inferior, then the
Tom> "start" command will fail.
Tom> What happens here is that the Ada "main" name is found in a constant
Tom> string in the executable. But, if the inferior is running, then the
Tom> process_stratum target reads from the inferior memory.
Tom> This patch fixes the problem by changing the main name code to set
Tom> trust-readonly-sections, causing the target stack to read from the
Tom> executable instead.
Tom> I looked briefly at changing GNAT to emit DW_AT_main_subprogram
Tom> instead, but this looks to be pretty involved.
Tom> Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=25811
I'm checking this in.
Tom
next prev parent reply other threads:[~2023-09-05 15:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-23 17:11 Tom Tromey
2023-09-05 15:54 ` Tom Tromey [this message]
2023-09-27 1:23 ` Simon Marchi
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