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From: Pedro Alves <palves@redhat.com>
To: Tom Tromey <tom@tromey.com>, gdb-patches@sourceware.org
Subject: Re: [RFA 1/3] PR symtab/20652 - fix psymbol_compare
Date: Tue, 04 Oct 2016 18:37:00 -0000	[thread overview]
Message-ID: <ce05875a-71d6-60e3-b194-2c85a0f4a79f@redhat.com> (raw)
In-Reply-To: <1475531646-18049-2-git-send-email-tom@tromey.com>

On 10/03/2016 10:54 PM, Tom Tromey wrote:
> @@ -1577,7 +1577,7 @@ psymbol_compare (const void *addr1, const void *addr2, int length)
>    struct partial_symbol *sym1 = (struct partial_symbol *) addr1;
>    struct partial_symbol *sym2 = (struct partial_symbol *) addr2;
>  
> -  return (memcmp (&sym1->ginfo.value, &sym1->ginfo.value,
> +  return (memcmp (&sym1->ginfo.value, &sym2->ginfo.value,
>                    sizeof (sym1->ginfo.value)) == 0

I wonder whether using memcpy is really the correct thing
here, considering ginfo.value is a union.  I.e., thinking about
padding bits not part of the active member.  Maybe we're zero
initializing the whole value and it works in practice because
of that.

>  	  && sym1->ginfo.language == sym2->ginfo.language
>            && PSYMBOL_DOMAIN (sym1) == PSYMBOL_DOMAIN (sym2)

Thanks,
Pedro Alves

  parent reply	other threads:[~2016-10-04 18:37 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-03 21:54 [RFA 0/3] Fix various bugs found by static analysis Tom Tromey
2016-10-03 21:54 ` [RFA 3/3] PR remote/20655 - small fix in handle_tracepoint_bkpts Tom Tromey
2016-10-04 12:53   ` Yao Qi
2016-10-03 21:54 ` [RFA 2/3] PR gdb/20653 - small cleanup in string_to_explicit_location Tom Tromey
2016-10-03 22:27   ` Keith Seitz
2016-10-04 10:50   ` Yao Qi
2016-10-03 21:54 ` [RFA 1/3] PR symtab/20652 - fix psymbol_compare Tom Tromey
2016-10-04 10:55   ` Yao Qi
2016-10-04 18:37   ` Pedro Alves [this message]
2016-10-04 18:52     ` Tom Tromey
2016-10-04 15:14 ` [RFA 0/3] Fix various bugs found by static analysis Yao Qi
2016-10-04 18:31   ` Pedro Alves
2016-10-04 19:05     ` Eli Zaretskii
2016-10-04 20:43       ` Tom Tromey

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