[oe] [PATCH] prelink: Added prelink-20100106, which works on ARM.
Mark Hatle
mark.hatle at windriver.com
Wed Jun 15 03:20:18 UTC 2011
On 6/14/11 10:02 PM, Mark Hatle wrote:
> Have you looked at:
>
> http://git.yoctoproject.org/cgit/cgit.cgi/prelink-cross/
>
> As far as I'm aware, this version works properly for all of the expected
> targets, including ARM.
>
> If it doesn't work, someone should submit a patch to the maintainer (me) and
> we'll get things resolved.
>
> The Yocto prelinker contains both local (on-target) as well as cross-prelinking
> support... (This is already integrated into oe-core)
Forgot to note, look at the cross_prelink branch. This is the head of tree for
the embedded items. The "master" is a mirror of the current SVN tree from Jakub
Jelinek.
The ld-linux... patch hunk is already there, and in a better shape then the one
proposed. Both the ld-linux.so.2 and ld-linux.so.3 are supported.
> --Mark
>
> On 6/14/11 8:16 PM, James Limbouris wrote:
>> On Tuesday, 14 June 2011 5:17 PM, Phil Blundell wrote:
>>> On Tue, 2011-06-14 at 15:49 +0800, James Limbouris wrote:
>>>> This version of prelink, together with a patch by Carsten Munk
>>>> <carsten at maemo.org>, taken from MeeGo, fixes an ARM incompatibility
>>>> with 20090925.
>>>>
>>>> Signed-off-by: James Limbouris <james at digitalmatter.com.au>
>>>> ---
>>>> .../prelink-20100106-arm-fix.patch | 86 ++++++++++++++++++++
>>>> recipes/prelink/prelink_20100106.bb | 53 ++++++++++++
>>>> 2 files changed, 139 insertions(+), 0 deletions(-) create mode
>>>> 100755 recipes/prelink/prelink-20100106/prelink-20100106-arm-fix.patch
>>>> create mode 100644 recipes/prelink/prelink_20100106.bb
>>>>
>>>> diff --git
>>>> a/recipes/prelink/prelink-20100106/prelink-20100106-arm-fix.patch
>>>> b/recipes/prelink/prelink-20100106/prelink-20100106-arm-fix.patch
>>>> new file mode 100755
>>>> index 0000000..a694541
>>>> --- /dev/null
>>>> +++ b/recipes/prelink/prelink-20100106/prelink-20100106-arm-fix.patch
>>>> @@ -0,0 +1,86 @@
>>>> +diff -ru prelink-old/src/arch-arm.c prelink/src/arch-arm.c
>>>> +--- prelink-old/src/arch-arm.c 2009-06-15 07:37:50.000000000 -0400
>>>> ++++ prelink/src/arch-arm.c 2010-08-17 03:35:05.000000000 -0400
>>>> +@@ -832,7 +832,7 @@
>>>> + .R_COPY = R_ARM_COPY,
>>>> + .R_RELATIVE = R_ARM_RELATIVE,
>>>> + .rtype_class_valid = RTYPE_CLASS_VALID,
>>>> +- .dynamic_linker = "/lib/ld-linux.so.2",
>>>> ++ .dynamic_linker = "/lib/ld-linux.so.3",
>>>
>>> That looks like it's going to break OABI binaries. I'm not sure to what extent
>>> we care about those anymore, but I'm not sure I would describe this as a
>>> "fix" exactly.
>>>
>>>> +- switch (vfork ())
>>>> ++ switch (pid=fork ())
>>>> + {
>>>> + case -1:
>>>> + error (0, errno, "Could not run %s", path); @@ -63,7 +65,9 @@
>>>> + close (p[1]);
>>>> + }
>>>> + dup2 (1, 2);
>>>> +- execve (path, argv, envp);
>>>> ++ while (*envp)
>>>> ++ putenv(*envp++);
>>>> ++ execv (path, argv);
>>>> + _exit (127);
>>>
>>> What's that about?
>>>
>>> p.
>>
>> Hi,
>>
>> I believe the vfork() changes are for qemu compatibility - I don't know what the issue was exactly.
>>
>> I didn't realise the linker version was for EABI/OABI compatibility - I guess prelink should determine the ABI and choose accordingly...
>> But I don't have any OABI binaries on my system at all...
>> So we can:
>> 1. Fix it properly
>> 2. Switch from OABI only to EABI only
>> 3. Make a prelink-eabi recipe.
>>
>> I don't really have the patience for 1., since I have no OABI binaries. Does anyone have any preferences here?
>>
>> Regards,
>> James
>>
>>
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