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From: Sergio Durigan Junior <sergiodj@redhat.com>
To: Tom Tromey <tromey@adacore.com>
Cc: GDB Patches <gdb-patches@sourceware.org>
Subject: Re: [PATCH] Don't crash is dwarf_decode_macro_bytes's 'body' is NULL, even when '!is_define'
Date: Wed, 29 May 2019 20:16:00 -0000	[thread overview]
Message-ID: <87tvdddnk8.fsf@redhat.com> (raw)
In-Reply-To: <877ea9z24k.fsf@tromey.com> (Tom Tromey's message of "Wed, 29 May	2019 09:55:39 -0600")

On Wednesday, May 29 2019, Tom Tromey wrote:

>>>>>> "Sergio" == Sergio Durigan Junior <sergiodj@redhat.com> writes:
>
> Sergio> Ref.: https://bugzilla.redhat.com/show_bug.cgi?id=1715008
> Sergio> On commit 7bede82892a06e6c26989803e70f53697392dcf9 ("Don't crash if
> Sergio> dwarf_decode_macro_bytes's 'body' is NULL"), I was too strict when
> Sergio> checking if 'body' is NULL: the check only comprised the case when
> Sergio> 'is_define' is true.  However, the corruption of .debug_macro by
> Sergio> rpmbuild's "debugedit" also affects the case when 'is_define' is
> Sergio> false, i.e., when the macro is being undefined.
>
> Sergio> This commit improves the check and covers both cases now.  This has
> Sergio> been tested on Fedora 30 with a problematic debuginfo, and I don't see
> Sergio> a segfault anymore.
>
> Sergio> OK to push?
>
> Thanks for doing this.  This is ok.

Thanks for the review, Tom.

Pushed: 955b06fa576df1a6954263043ea3f3a5b9ad5940

-- 
Sergio
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      reply	other threads:[~2019-05-29 20:16 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10 21:04 [PATCH] Don't crash if parse_definition_macro's 'body' is NULL Sergio Durigan Junior
2019-05-13 14:01 ` Tom Tromey
2019-05-14 20:54   ` Sergio Durigan Junior
2019-05-14 20:55   ` [PATCH] Don't crash if dwarf_decode_macro_bytes's " Sergio Durigan Junior
2019-05-14 22:10     ` Tom Tromey
2019-05-14 23:36       ` Sergio Durigan Junior
2019-05-15  1:38         ` Tom Tromey
2019-05-15  8:49         ` Andreas Schwab
2019-05-15 13:53           ` Tom Tromey
2019-05-15 13:59             ` Sergio Durigan Junior
2019-05-29 14:43               ` [PATCH] Don't crash is dwarf_decode_macro_bytes's 'body' is NULL, even when '!is_define' Sergio Durigan Junior
2019-05-29 15:55                 ` Tom Tromey
2019-05-29 20:16                   ` Sergio Durigan Junior [this message]

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