From: Andrew Haley <aph@redhat.com>
To: java@gcc.gnu.org
Subject: Re: GC leaks debugging
Date: Fri, 01 Apr 2011 09:34:00 -0000 [thread overview]
Message-ID: <4D959C24.8030408@redhat.com> (raw)
In-Reply-To: <AANLkTikG2CBU8q2yde+NZLJ8x7Rcg2jHQG0Ojmc0g=ks@mail.gmail.com>
On 04/01/2011 10:02 AM, Erik Groeneveld wrote:
> On Fri, Apr 1, 2011 at 10:45, Andrew Haley <aph@redhat.com> wrote:
>> On 01/04/11 09:39, Erik Groeneveld wrote:
>>> From reading about the
>>> GC, I understand that the GC knows what is a pointer and what not
>>> because there is type information associated with the Java objects.
>>> So I'd expect no black-listing at all. It that a right observation?
>>
>> No. Objects are scanned precisely, but the stack is not.
>
> Thanks. I think I can rule the stack out by reviewing/adapting my
> test program. I'll do that first.
>
>> Also, depending
>> on your compilation options, the data segments of your program may be
>> scanned conservatively.
>
> I have to think about this one. Which options are you thinking of?
-findirect-dispatch
With that option, everything except the stack is scanned precisely. However,
there is some runtime overhead.
Andrew.
next prev parent reply other threads:[~2011-04-01 9:34 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-01 8:39 Erik Groeneveld
2011-04-01 8:45 ` Andrew Haley
2011-04-01 9:03 ` Erik Groeneveld
2011-04-01 9:34 ` Andrew Haley [this message]
2011-04-02 0:27 ` Boehm, Hans
2011-04-02 9:39 ` Erik Groeneveld
2011-04-03 17:15 ` Erik Groeneveld
2011-04-03 18:00 ` Erik Groeneveld
2011-04-04 8:13 ` Andrew Haley
2011-04-04 8:53 ` Erik Groeneveld
2011-04-04 9:48 ` Andrew Haley
2011-04-05 4:44 ` Boehm, Hans
2011-04-05 8:58 ` Andrew Haley
2011-04-05 6:50 ` Erik Groeneveld
2011-04-05 9:02 ` Andrew Haley
2011-04-05 12:02 ` Erik Groeneveld
2011-04-05 12:55 ` Andrew Haley
2011-04-06 14:30 ` Erik Groeneveld
2011-04-06 18:33 ` Andrew Haley
2011-04-06 18:39 ` David Daney
2011-04-07 17:43 ` Erik Groeneveld
2011-04-08 8:12 ` Erik Groeneveld
2011-04-08 13:56 ` Andrew Haley
2011-04-08 15:35 ` David Daney
2011-04-08 15:53 ` Erik Groeneveld
2011-04-08 15:57 ` Andrew Haley
2011-04-08 15:48 ` Erik Groeneveld
2011-04-09 1:17 ` Boehm, Hans
2011-04-09 8:47 ` Andrew Haley
2011-04-09 10:56 ` Erik Groeneveld
2011-04-10 11:03 ` Erik Groeneveld
2011-04-12 18:43 ` Erik Groeneveld
2011-04-13 8:11 ` Andrew Haley
2011-04-13 12:11 ` Bryce McKinlay
2011-04-13 14:27 ` Andrew Haley
2011-04-14 8:36 ` Erik Groeneveld
2011-04-14 8:43 ` Andrew Haley
2011-04-14 10:02 ` Erik Groeneveld
2011-04-14 10:50 ` Andrew Haley
2011-04-15 7:32 ` Erik J Groeneveld
2011-04-01 17:41 ` David Daney
2011-04-02 16:21 ` Erik Groeneveld
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