From: "Chris Friesen" <cfriesen@nortel•com>
To: Roland McGrath <roland@redhat•com>
Cc: linuxppc-dev@ozlabs•org, paulus@samba•org
Subject: Re: patch to install unstripped vDSO on disk breaks powerpc kernel build
Date: Fri, 09 May 2008 22:43:31 -0600 [thread overview]
Message-ID: <482527F3.60405@nortel.com> (raw)
In-Reply-To: <20080509194427.3BDB126FA85@magilla.localdomain>
[-- Attachment #1: Type: text/plain, Size: 1390 bytes --]
Roland McGrath wrote:
> I haven't seen that error before. Can you show the output of {eu-,}readelf -lS
> on vdso64.so.dbg, and also on the vdso64.so successfully built when you
> revert the patch?
I've attached the raw output from the two commands. The delta between
the two is as follows:
-There are 14 section headers, starting at offset 0xd58:
+There are 16 section headers, starting at offset 0xd68:
Section Headers:
[Nr] Name Type Address Offset
@@ -33,7 +33,11 @@
[12] .rela.dyn RELA 0000000000100be8 00000be8
0000000000000000 0000000000000018 A 2 0 8
[13] .shstrtab STRTAB 0000000000000000 00000cd8
- 0000000000000079 0000000000000000 0 0 1
+ 0000000000000089 0000000000000000 0 0 1
+ [14] .symtab SYMTAB 0000000000000000 00001168
+ 0000000000000d80 0000000000000018 15 134 8
+ [15] .strtab STRTAB 0000000000000000 00001ee8
+ 00000000000004a3 0000000000000000 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings)
I (info), L (link order), G (group), x (unknown)
Also, I'm going to be away on holidays next week, so I won't be able to
test this further until the 19th or so.
Chris
[-- Attachment #2: good.txt --]
[-- Type: text/plain, Size: 3477 bytes --]
good:
[cfriesen@localhost linux-2.6]$ /home/cfriesen/bin/ppc64-R9a/bin/ppc64-R9a-readelf -lS ../g5/arch/powerpc/kernel/vdso64/vdso64.so
There are 14 section headers, starting at offset 0xd58:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .hash HASH 0000000000100120 00000120
000000000000004c 0000000000000004 A 2 0 8
[ 2] .dynsym DYNSYM 0000000000100170 00000170
0000000000000150 0000000000000018 A 3 4 8
[ 3] .dynstr STRTAB 00000000001002c0 000002c0
00000000000000ef 0000000000000000 A 0 0 1
[ 4] .gnu.version VERSYM 00000000001003b0 000003b0
000000000000001c 0000000000000002 A 2 0 2
[ 5] .gnu.version_d VERDEF 00000000001003d0 000003d0
0000000000000038 0000000000000000 A 3 2 8
[ 6] .note NOTE 0000000000100408 00000408
0000000000000018 0000000000000000 A 0 0 4
[ 7] .text PROGBITS 0000000000100420 00000420
00000000000002ec 0000000000000000 AX 0 0 8
[ 8] .eh_frame_hdr PROGBITS 0000000000100710 00000710
0000000000000008 0000000000000000 A 0 0 4
[ 9] .eh_frame PROGBITS 0000000000100718 00000718
00000000000004c4 0000000000000000 A 0 0 8
[10] .got PROGBITS 0000000000100be0 00000be0
0000000000000008 0000000000000008 WA 0 0 8
[11] .dynamic DYNAMIC 0000000000100be8 00000be8
00000000000000f0 0000000000000010 WA 3 0 8
[12] .rela.dyn RELA 0000000000100be8 00000be8
0000000000000000 0000000000000018 A 2 0 8
[13] .shstrtab STRTAB 0000000000000000 00000cd8
0000000000000079 0000000000000000 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings)
I (info), L (link order), G (group), x (unknown)
O (extra OS processing required) o (OS specific), p (processor specific)
Elf file type is DYN (Shared object file)
Entry point 0x0
There are 4 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000000000 0x0000000000100000 0x0000000000100000
0x0000000000000cd8 0x0000000000000cd8 R E 10000
NOTE 0x0000000000000408 0x0000000000100408 0x0000000000100408
0x0000000000000018 0x0000000000000018 R 4
DYNAMIC 0x0000000000000be8 0x0000000000100be8 0x0000000000100be8
0x00000000000000f0 0x00000000000000f0 R 8
GNU_EH_FRAME 0x0000000000000710 0x0000000000100710 0x0000000000100710
0x0000000000000008 0x0000000000000008 R 4
Section to Segment mapping:
Segment Sections...
00 .hash .dynsym .dynstr .gnu.version .gnu.version_d .note .text .eh_frame_hdr .eh_frame .got .dynamic
01 .note
02 .dynamic
03 .eh_frame_hdr
[-- Attachment #3: bad.txt --]
[-- Type: text/plain, Size: 3750 bytes --]
bad:
[cfriesen@localhost linux-2.6]$ /home/cfriesen/bin/ppc64-R9a/bin/ppc64-R9a-readelf -lS ../g5/arch/powerpc/kernel/vdso64/vdso64.so.dbg
There are 16 section headers, starting at offset 0xd68:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .hash HASH 0000000000100120 00000120
000000000000004c 0000000000000004 A 2 0 8
[ 2] .dynsym DYNSYM 0000000000100170 00000170
0000000000000150 0000000000000018 A 3 4 8
[ 3] .dynstr STRTAB 00000000001002c0 000002c0
00000000000000ef 0000000000000000 A 0 0 1
[ 4] .gnu.version VERSYM 00000000001003b0 000003b0
000000000000001c 0000000000000002 A 2 0 2
[ 5] .gnu.version_d VERDEF 00000000001003d0 000003d0
0000000000000038 0000000000000000 A 3 2 8
[ 6] .note NOTE 0000000000100408 00000408
0000000000000018 0000000000000000 A 0 0 4
[ 7] .text PROGBITS 0000000000100420 00000420
00000000000002ec 0000000000000000 AX 0 0 8
[ 8] .eh_frame_hdr PROGBITS 0000000000100710 00000710
0000000000000008 0000000000000000 A 0 0 4
[ 9] .eh_frame PROGBITS 0000000000100718 00000718
00000000000004c4 0000000000000000 A 0 0 8
[10] .got PROGBITS 0000000000100be0 00000be0
0000000000000008 0000000000000008 WA 0 0 8
[11] .dynamic DYNAMIC 0000000000100be8 00000be8
00000000000000f0 0000000000000010 WA 3 0 8
[12] .rela.dyn RELA 0000000000100be8 00000be8
0000000000000000 0000000000000018 A 2 0 8
[13] .shstrtab STRTAB 0000000000000000 00000cd8
0000000000000089 0000000000000000 0 0 1
[14] .symtab SYMTAB 0000000000000000 00001168
0000000000000d80 0000000000000018 15 134 8
[15] .strtab STRTAB 0000000000000000 00001ee8
00000000000004a3 0000000000000000 0 0 1
Key to Flags:
W (write), A (alloc), X (execute), M (merge), S (strings)
I (info), L (link order), G (group), x (unknown)
O (extra OS processing required) o (OS specific), p (processor specific)
Elf file type is DYN (Shared object file)
Entry point 0x0
There are 4 program headers, starting at offset 64
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000000000 0x0000000000100000 0x0000000000100000
0x0000000000000cd8 0x0000000000000cd8 R E 10000
NOTE 0x0000000000000408 0x0000000000100408 0x0000000000100408
0x0000000000000018 0x0000000000000018 R 4
DYNAMIC 0x0000000000000be8 0x0000000000100be8 0x0000000000100be8
0x00000000000000f0 0x00000000000000f0 R 8
GNU_EH_FRAME 0x0000000000000710 0x0000000000100710 0x0000000000100710
0x0000000000000008 0x0000000000000008 R 4
Section to Segment mapping:
Segment Sections...
00 .hash .dynsym .dynstr .gnu.version .gnu.version_d .note .text .eh_frame_hdr .eh_frame .got .dynamic
01 .note
02 .dynamic
03 .eh_frame_hdr
next prev parent reply other threads:[~2008-05-10 4:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-09 17:16 patch to install unstripped vDSO on disk breaks powerpc kernel build Chris Friesen
2008-05-09 19:44 ` Roland McGrath
2008-05-10 4:43 ` Chris Friesen [this message]
2008-05-11 0:40 ` Roland McGrath
2008-05-21 22:12 ` Chris Friesen
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