From: Doug Evans <dje@google.com>
To: sami wagiaalla <swagiaal@redhat.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [RFC] Use custom hash function with bcache
Date: Mon, 16 Aug 2010 18:56:00 -0000 [thread overview]
Message-ID: <AANLkTikbMcvP-+2iqZB3gP-gLcWY7B7r4t+HWtHK-a6f@mail.gmail.com> (raw)
In-Reply-To: <AANLkTikH1rBzysO-nNT-w3a0me7zMcGfSpn7+7oJQdWk@mail.gmail.com>
On Mon, Aug 16, 2010 at 11:28 AM, Doug Evans <dje@google.com> wrote:
> On Mon, Aug 16, 2010 at 7:10 AM, sami wagiaalla <swagiaal@redhat.com> wrote:
>> This patch enables the use of custom hash and comparison functions when
>> adding elements to a bcache. The patch also introduces hash and comparison
>> functions which take into consideration only the relevant properties of the
>> psymbol.
>>
>> Tested by running the test suit on F13 with gcc 4.4.4 on x8664, no
>> regressions.
>>
>> also used 'main print statistics' to ensure that the bcache object count and
>> unique object count are as expected with a small test case.
>>
>> Sami
>>
>
> Hi. Comments inline with the patch.
>
>
> 2010-08-13 Sami Wagiaalla <swagiaal@redhat.com>
>
> * psymtab.c (psymbol_hash): New function.
> (psymbol_compare): New function.
> (add_psymbol_to_bcache): pass psymbol_hash and psymbol_compare
> to bcache_full.
> * bcache.c (hash_continue): New.
> (hash): Use hash_continue.
> (bcache): Now takes hash_function, compare_function arguments.
> (bcache_full): Ditto.
> * bcache.c (bcache): Update prototype.
> (bcache_full): Ditto.
> * macrotab.c (macro_bcache): Updated.
> * symfile.c (allocate_symtab): Updated.
Blech, I forgot to add that we can get rid of the static in "static
struct partial_symbol psymbol;" in add_psymbol_to_bcache.
I think that should be part of this patch.
A couple more things come to mind.
1) We store symbol names such that we can compare them with ptr1 ==
ptr2, but your patch uses strcmp.
2) I'm wondering if there's some abstraction violation with bcache not
being aware of the extra memory that is used by
gsymbol->language_specific.cplus_specific. Dunno, just wondering.
next prev parent reply other threads:[~2010-08-16 18:56 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-16 14:11 sami wagiaalla
2010-08-16 18:29 ` Doug Evans
2010-08-16 18:56 ` Doug Evans [this message]
2010-08-16 19:56 ` sami wagiaalla
2010-08-19 16:32 ` [patch 1/2] Use custom hash function with bcache [Re: [RFC] Use custom hash function with bcache] sami wagiaalla
2010-08-19 20:26 ` Tom Tromey
2010-08-25 18:30 ` sami wagiaalla
2010-08-30 20:53 ` Tom Tromey
2010-09-01 8:25 ` Regression for gdb.stabs/gdb11479.exp [Re: [patch 1/2] " Jan Kratochvil
2010-09-01 16:20 ` Joel Brobecker
2010-09-01 16:47 ` Joel Brobecker
2010-09-01 17:03 ` sami wagiaalla
2010-09-01 17:17 ` Joel Brobecker
2010-09-01 18:09 ` sami wagiaalla
2010-09-01 18:19 ` Jan Kratochvil
2010-09-01 18:24 ` Doug Evans
2010-09-01 18:38 ` Tom Tromey
2010-09-01 19:01 ` sami wagiaalla
2010-09-01 19:15 ` Doug Evans
2010-09-01 19:17 ` Doug Evans
2010-09-01 19:59 ` sami wagiaalla
2010-09-01 23:11 ` Doug Evans
2010-09-01 23:16 ` Doug Evans
2010-09-01 23:19 ` Doug Evans
2010-09-01 23:19 ` Doug Evans
2010-09-02 15:43 ` sami wagiaalla
2010-09-02 20:25 ` Doug Evans
2010-09-03 15:59 ` Doug Evans
2010-09-04 14:29 ` sami wagiaalla
2010-09-06 9:46 ` Daniel Jacobowitz
2010-08-16 19:14 ` [RFC] Use custom hash function with bcache Daniel Jacobowitz
2010-08-16 19:50 ` sami wagiaalla
2010-08-16 20:04 ` Daniel Jacobowitz
2010-08-16 20:11 ` sami wagiaalla
2010-08-16 20:49 ` Daniel Jacobowitz
2010-08-17 17:02 ` sami wagiaalla
2010-08-17 17:40 ` Daniel Jacobowitz
2010-08-17 23:26 ` Tom Tromey
2010-08-18 15:13 ` sami wagiaalla
2010-08-18 15:24 ` Tom Tromey
2010-08-19 16:33 ` sami wagiaalla
2010-08-19 16:37 ` [patch 2/2] Use custom hash function with bcache [Re: [RFC] Use custom hash function with bcache] sami wagiaalla
2010-08-19 20:32 ` [RFC] Use custom hash function with bcache Tom Tromey
2010-08-25 18:32 ` [patch 2/2] Use custom hash function with bcache [Re: [RFC] Use custom hash function with bcache] sami wagiaalla
2010-08-30 20:58 ` Tom Tromey
2010-08-30 21:13 ` Tom Tromey
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