Dear Scott,
I have disassemble the nand_base.o file,because i know the problem
happened here. Do you think it's useful for your analysis?
00001a4c <nand_scan_tail>:
1749 1a4c: e92d4070 push {r4, r5, r6, lr}
1750 1a50: e590509c ldr r5, [r0, #156]
1751 1a54: e595304c ldr r3, [r5, #76]
1752 1a58: e3130701 tst r3, #262144 ; 0x40000
1753 1a5c: e1a06000 mov r6, r0
1754 1a60: 1a000002 bne 1a70 <nand_scan_tail+0x24>
1755 1a64: e59f04ec ldr r0, [pc, #1260] ; 1f58 <nand_scan_tail
+0x50c>
1756 1a68: ebfffffe bl 0 <malloc>
1757 1a6c: e58500dc str r0, [r5, #220]
1758 1a70: e59510dc ldr r1, [r5, #220]
1759 1a74: e3510000 cmp r1, #0 ; 0x0
1760 1a78: 03e0000b mvneq r0, #11 ; 0xb
1761 1a7c: 08bd8070 popeq {r4, r5, r6, pc}
1762 1a80: e5963014 ldr r3, [r6, #20]
1763 1a84: e59520b0 ldr r2, [r5, #176]
1764 1a88: e0813003 add r3, r1, r3
by the way,I cann't find the prototype of malloc in the whole project,it
seems that it is encapsulated in some libs.
--
Best regards,
Terry.
在 2010-11-11四的 13:49 -0600，Scott Wood写道：
> On Thu, 11 Nov 2010 23:06:01 +0800
> terry <gliumailena...@gmail.com> wrote:
>
> > Dear everyone,
> > I'm using u-boot-2010.09. After I download u-boot.bin to my boards(cpu
> > is s3c2410),the output from serial shows that cpu has exception, the
> > information list as following:
> > U-Boot 2010.09 (Nov 11 2010 - 21:55:07)
> >
> > U-Boot code: 33F80000 -> 33FA0BDC BSS: -> 33FA45EC
> > RAM Configuration:
> > Bank #0: 30000000 64 MiB
> > NAND: data abort
> > pc : [<33f8fbb4>] lr : [<33f85f70>]
> > sp : 33f07fac ip : 00000000 fp : 00000000
> > r10: 00001298 r9 : ffffff7f r8 : 33f4ffe0
> > r7 : 00000000 r6 : 33fa3b50 r5 : 33fa3c00 r4 : 33fa0274
> > r3 : 33f9ff54 r2 : 00000064 r1 : 00000001 r0 : cc33cc33
> > Flags: NzCv IRQs off FIQs off Mode SVC_32
> > Resetting CPU ...
> >
> > value of pc locate at <malloc> function, value of lr locate at
> > <nand_scan_tail>(/drivers/mtd/nand/nand_base.c).
>
> Could you look up the specific line numbers of
> 0x33f8fbb4 and 0x33f85f6c, and show a few lines of disassembly around
> those addresses?
>
> -Scott
>
--
Best regards,
terry
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