[oe] [meta-java][PATCH 1/2] openjdk-8: remove debuglink

[Wenlin Kang]

On 2018年06月12日 19:35, Wenlin Kang wrote:
> On 2018年06月12日 19:09, Richard Leitner wrote:
>> Hi Wenlin,
>>
>> On 06/07/2018 11:24 AM, Wenlin Kang wrote:
>>> We need remove previous debuglink before add it if it has existed,
>>> because it may have a different file name with this that we will add.
>> I'm sorry but I don't get the reason why we need this...
>> It would be great if you may please explain it in a little more 
>> detail for me ;-)
>
> Hi Richard
>
> In openjdk-8, its debug file is xxx.debuginfo, and when execute 
> openjdk's makefile, it will add
> libjvm.debuginfo as libjvm.so's debuglink section's file name, this 
> name is different  with that
> we will add in splitdebuginfo() of package.bbclass, this makes we 
> can't get symbol information
> when debug libjvm.so in gdb.
>

When a executable file or library file has contained the debuglink 
section, it will not be changed when added again,
so we must remove it after add new one.

In OE-core, debug file name is the same with the executable file or 
library file.


>>
>> Thank you very much!
>>
>>> Signed-off-by: Wenlin Kang <wenlin.kang at windriver.com>
>>> ---
>>>   recipes-core/openjdk/openjdk-8-cross.inc | 16 ++++++++++++++++
>>>   1 file changed, 16 insertions(+)
>>>
>>> diff --git a/recipes-core/openjdk/openjdk-8-cross.inc 
>>> b/recipes-core/openjdk/openjdk-8-cross.inc
>>> index 46f13fd..03cab11 100644
>>> --- a/recipes-core/openjdk/openjdk-8-cross.inc
>>> +++ b/recipes-core/openjdk/openjdk-8-cross.inc
>>> @@ -105,5 +105,21 @@ EXTRA_OEMAKE_append = '\
>>>       images \
>>>   '
>>>   +python remove_debuglink() {
>>> +    dvar = d.getVar('PKGD', True)
>>> +    objcopy = d.getVar("OBJCOPY", True)
>>> +
>>> +    # Remove the previous debuglink if it has existed, because it 
>>> has a different file name with that we will add.
>>> +    if d.getVar('PN', True).find("jre") != -1:
>>> +        file = dvar + d.getVar("JRE_HOME", True) + "/lib/" + 
>>> d.getVar("JDK_ARCH", True) + "/server/libjvm.so"
>>> +    else:
>>> +        file = dvar + d.getVar("JDK_HOME", True) + "/jre/lib/" + 
>>> d.getVar("JDK_ARCH", True) + "/server/libjvm.so"
>>> +
>>> +    cmd = "'%s' --remove-section .gnu_debuglink '%s'" % (objcopy, 
>>> file)
>>> +    oe.utils.getstatusoutput(cmd)
>>> +}
>>> +
>>> +PACKAGE_PREPROCESS_FUNCS += "remove_debuglink"
>>> +
>>>   # There is a symlink to a .so but this one is valid.
>>>   INSANE_SKIP_${PN} = "dev-so"
>>>
>> regards;Richard.L
>>
>

-- 
Thanks,
Wenlin Kang