[dpdk-dev] [PATCH v2 2/2] Update Docs for new EXTRA_LDLIBS variable

[Gonzalez Monroy, Sergio]

On 29/04/2015 16:00, Wiles, Keith wrote:
>
> On 4/29/15, 9:55 AM, "Gonzalez Monroy, Sergio"
> <sergio.gonzalez.monroy at intel.com> wrote:
>
>> On 29/04/2015 15:37, Keith Wiles wrote:
>>> Signed-off-by: Keith Wiles <keith.wiles at intel.com>
>>> ---
>>>    doc/build-sdk-quick.txt                          | 1 +
>>>    doc/guides/prog_guide/dev_kit_build_system.rst   | 2 ++
>>>    doc/guides/prog_guide/dev_kit_root_make_help.rst | 2 +-
>>>    3 files changed, 4 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/doc/build-sdk-quick.txt b/doc/build-sdk-quick.txt
>>> index 041a40e..26d5442 100644
>>> --- a/doc/build-sdk-quick.txt
>>> +++ b/doc/build-sdk-quick.txt
>>> @@ -13,6 +13,7 @@ Build variables
>>>    	EXTRA_CPPFLAGS   preprocessor options
>>>    	EXTRA_CFLAGS     compiler options
>>>    	EXTRA_LDFLAGS    linker options
>>> +	EXTRA_LDLIBS     linker libary options
>>>    	RTE_KERNELDIR    linux headers path
>>>    	CROSS     toolchain prefix
>>>    	V         verbose
>>> diff --git a/doc/guides/prog_guide/dev_kit_build_system.rst
>>> b/doc/guides/prog_guide/dev_kit_build_system.rst
>>> index cf5c96f..b8ef167 100644
>>> --- a/doc/guides/prog_guide/dev_kit_build_system.rst
>>> +++ b/doc/guides/prog_guide/dev_kit_build_system.rst
>>> @@ -413,6 +413,8 @@ Variables that Can be Set/Overridden by the User in
>>> a Makefile or Command Line
>>>    
>>>    *   EXTRA_LDFLAGS: The content of this variable is appended after
>>> LDFLAGS when linking.
>>>    
>>> +*   EXTRA_LDLIBS: The content of this variable is appended after
>>> LDLIBS when linking.
>>> +
>>>    *   EXTRA_ASFLAGS: The content of this variable is appended after
>>> ASFLAGS when assembling.
>>>    
>>>    *   EXTRA_CPPFLAGS: The content of this variable is appended after
>>> CPPFLAGS when using a C preprocessor on assembly files.
>>> diff --git a/doc/guides/prog_guide/dev_kit_root_make_help.rst
>>> b/doc/guides/prog_guide/dev_kit_root_make_help.rst
>>> index 4f30192..fdc5fea 100644
>>> --- a/doc/guides/prog_guide/dev_kit_root_make_help.rst
>>> +++ b/doc/guides/prog_guide/dev_kit_root_make_help.rst
>>> @@ -205,7 +205,7 @@ The following variables can be specified on the
>>> command line:
>>>    
>>>        Enable dependency debugging. This provides some useful
>>> information about why a target is built or not.
>>>    
>>> -*   EXTRA_CFLAGS=, EXTRA_LDFLAGS=, EXTRA_ASFLAGS=, EXTRA_CPPFLAGS=
>>> +*   EXTRA_CFLAGS=, EXTRA_LDFLAGS=, EXTRA_LDLIBS=, EXTRA_ASFLAGS=,
>>> EXTRA_CPPFLAGS=
>>>    
>>>        Append specific compilation, link or asm flags.
>>>    
>> Do we need to remove LDLIBS from section 28.3.4?
> Missed it, but it should be LDLIBS-y now
It would still be lost cause you are resetting LDLIBS-y value at the 
start of rte.app.mk, right?
The only way to add to LDLIBS-y would be using EXTRA_LDLIBS.

Sergio
>> With the current patch the value of LDLIBS in the app makefile is lost.
>>
>> Sergio