From: Patrick McHardy <kaber@trash.net>
To: "David S. Miller" <davem@davemloft.net>
Cc: netdev@oss.sgi.com, netfilter-devel@lists.netfilter.org,
bdschuym@pandora.be, bridge@osdl.org, snort2004@mail.ru,
rusty@rustcorp.com.au, dwmw2@infradead.org, ak@suse.de,
shemminger@osdl.org, gandalf@wlug.westbo.se
Subject: [Bridge] Re: [PATCH/RFC] Reduce call chain length in netfilter
Date: Thu, 27 Jan 2005 23:48:04 +0100 [thread overview]
Message-ID: <41F96FA4.4000105@trash.net> (raw)
In-Reply-To: <20050127114726.2205b4ed.davem@davemloft.net>
David S. Miller wrote:
>In the generated asm on sparc64, invoke2() gets a tail-call
>whereas invoke() does not. Hmmm...
>
>
Apparently support for indirect tail-calls was added to gcc 3.4.
gcc-3.3.5:
0x0000000000000000 <invoke+0>: sub $0x8,%rsp
0x0000000000000004 <invoke+4>: callq *%esi
0x0000000000000006 <invoke+6>: add $0x8,%rsp
0x000000000000000a <invoke+10>: retq
gcc-3.4.4:
0x0000000000000000 <invoke+0>: mov %rsi,%r11
0x0000000000000003 <invoke+3>: jmpq *%r11d
Regards
Patrick
next prev parent reply other threads:[~2005-01-27 22:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1131604877.20041218092730@mail.ru.suse.lists.linux.kernel>
[not found] ` <p73zn0ccaee.fsf@verdi.suse.de>
[not found] ` <1105117559.11753.34.camel@baythorne.infradead.org>
2005-01-07 18:00 ` [Bridge] Re: do_IRQ: stack overflow: 872 Stephen Hemminger
2005-01-07 18:06 ` David Woodhouse
2005-01-07 21:27 ` Bart De Schuymer
2005-01-18 21:57 ` David S. Miller
2005-01-22 22:30 ` [Bridge] [PATCH/RFC] Reduce call chain length in netfilter (was: Re: do_IRQ: stack overflow: 872..) Bart De Schuymer
2005-01-22 23:22 ` [Bridge] " Martin Josefsson
2005-01-23 12:40 ` Bart De Schuymer
2005-01-23 16:08 ` Martin Josefsson
2005-01-26 6:05 ` David S. Miller
2005-01-26 9:08 ` Bart De Schuymer
2005-01-26 23:49 ` [Bridge] Re: [PATCH/RFC] Reduce call chain length in netfilter Patrick McHardy
2005-01-27 7:18 ` David S. Miller
2005-01-27 17:50 ` Patrick McHardy
2005-01-27 19:47 ` David S. Miller
2005-01-27 21:16 ` Bart De Schuymer
2005-01-27 22:48 ` Patrick McHardy [this message]
2005-01-27 23:24 ` David S. Miller
2005-01-28 0:08 ` Patrick McHardy
2005-01-28 0:29 ` Rusty Russell
2005-01-28 1:10 ` David S. Miller
2005-01-28 1:32 ` Rusty Russell
2005-01-28 1:35 ` Patrick McHardy
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