linux-kernel - Ask a question about kfree

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Message-ID: <434589.51834.qm@web15703.mail.cnb.yahoo.com>
Date:	Thu, 30 Jul 2009 16:37:16 +0800 (CST)
From:	peter meng <mengsanshui@...oo.com.cn>
To:	linux-kernel@...r.kernel.org
Subject: Ask a question about kfree_skbmem and disassemble 


Hi

I'm not be familiar with assemble .
I want to know how to explain follow .

80195170:       00808021        move    s0,a0
80195174:       3c028029        lui     v0,0x8029
80195178:       8c44db90        lw      a0,-9328(v0)
8019517c:       02002821        move    a1,s0

------source code and it's assemble---------------
void kfree_skbmem(struct sk_buff *skb)
{
	skb_release_data(skb);
	kmem_cache_free(skbuff_head_cache, skb);
}


80195160 <kfree_skbmem>:
80195160:       27bdffe8        addiu   sp,sp,-24
80195164:       afbf0014        sw      ra,20(sp)
80195168:       afb00010        sw      s0,16(sp)
8019516c:       0c0654bd        jal     801952f4 <skb_release_data>
80195170:       00808021        move    s0,a0
80195174:       3c028029        lui     v0,0x8029
80195178:       8c44db90        lw      a0,-9328(v0)
8019517c:       02002821        move    a1,s0
80195180:       8fbf0014        lw      ra,20(sp)
80195184:       8fb00010        lw      s0,16(sp)
80195188:       0802c86a        j       800b21a8 <kmem_cache_free>
8019518c:       27bd0018        addiu   sp,sp,24
------------------------------------------------------


Thanks a lot 
Best Regards.
Peter Meng


      
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