On 10/29/2013 01:20 PM, Chris Patterson wrote:
On Tue, Oct 29, 2013 at 3:27 AM, Laurentiu Palcu
<[email protected] <mailto:[email protected]>> wrote:
Hi Chris,
On Mon, Oct 28, 2013 at 07:54:51PM -0400, Chris Patterson wrote:
>
> I'm not terribly familiar with the nativesdk, and (foolishly)
neglected to test
> that. However, I looked into it, and it looks like the
relocatable_sdk.patch
> affects a linker script that is no longer available. I dropped
the patch and
> tested installing an oe-core sdk sysroot (via bitbake -c populate_sdk
> core-image-minimal) and qemu appears to work fine from within the sdk
> environment.
>
> I'm open to suggestions for further testing this upgrade
(particularly a case
> to cover what relocatable_sdk.patch was originally intended to
resolve). I'm
> certainly not the expert here, but am willing to help out.
>
To test this particular case, build meta-toolchain and install it in a
different location than the default one. Then, just do a 'readelf -s"
on any qemu binary and make sure the .interp section has a size of
0x1000 bytes.
If it does, then it's ok to drop the patch. That patch was needed
because qemu happened to use their own linker scripts and, in order to
have the SDK relocatable, we needed to reseve space in the .interp
section to squeeze the new path.
Thanks Laurentiu - I did validate that the interp section looks to be
0x1000 bytes for the qemu-* binaries:
$
/usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/qemu-system-arm
--version
QEMU emulator version 1.6.1, Copyright (c) 2003-2008 Fabrice Bellard
$ readelf -S
/usr/local/oecore-x86_64/sysroots/x86_64-oesdk-linux/usr/bin/qemu-system-arm
There are 29 section headers, starting at offset 0x5a14b8:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
[ 0] NULL 0000000000000000 00000000
0000000000000000 0000000000000000 0 0 0
[ 1] .interp PROGBITS 0000000000000270 00000270
0000000000001000 0000000000000000 A 0 0 1
[ 2] .note.ABI-tag NOTE 0000000000001270 00001270
0000000000000020 0000000000000000 A 0 0 4
[ 3] .note.gnu.build-i NOTE 0000000000001290 00001290
...
If anyone has any other suggestions to test, I will gladly attempt them
before posting a v2.
Your last message said you tested core-image-minimal, did you do any
testing with a graphical image like core-image sato? We really
apperciate the work you put in here.
Thanks
Sau!
Cheers!
-Chris
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