[Buildroot] [RFC PATCH v2 2/5] aarch64: ilp32: handle special file name

[Bamvor Jian Zhang <bamvor.zhangjian@huawei.com>]

On 2015/4/10 20:35, Gustavo Zacarias wrote:
> On 03/18/2015 06:49 AM, Zhang Jian(Bamvor) wrote:
> 
>> In aarch64 ilp32, the directory of library is libilp32 and the linker is
>> ld-linux-aarch64_ilp32.so.1 or ld-linux-aarch64_be_ilp32.so.1.
> 
> There's a couple of issues here, let's see...
> 
>> +ifeq ($(BR2_GCC_TARGET_ABI), "ilp32")
>> +# Leave extension for x32 on x86_64 which is libx32 instead of libx32
>> +ifeq ($(BR2_aarch64), y)
>> +LIB_SYMLINK = libilp32
>> +endif
>> +ifeq ($(BR2_aarch64_be), y)
>> +LIB_SYMLINK = libilp32
>> +endif
>> +endif
> 
> You can simplify this:
> 
> ifeq ($(BR2_aarch64)$(BR2_aarch64_be),y)
> ifeq ($(BR2_GCC_TARGET_ABI), "ilp32")
> LIB_SYMLINK = libilp32
> endif
> endif
> 
> aarch64 & aarch64_be won't be defined at the same time so you can
> condense it in a single ifeq.
> Also the comment doesn't apply IMHO, there's nothing related to x86_64
> here yet.
> Additionally it has to be aarch64 before it can be ilp32 right? And is
> "ilp32" used for any other architecture? If not you could remove the
> whole aarch64 clause.
Ilp32 is used in x86_64 too. But the name of ilp32 in x86_64 is x32.
> 
>> +ifeq ($(BR2_GCC_TARGET_ABI), "ilp32")
>> +LIB_EXTERNAL_LIBS += ld*.so
>> +endif
> 
> Can we focus this a little bit more like it's done for ARM EABIhf
> instead of just copying ld* blindly?
Oh, it is ld-VERSION.so in libilp32 directory. The ld-linux-aarch64_ilp32.so.1
is only existed in lib directory. And ld-linux-aarch64_ilp32.so.1 is the
only file I need in lib. So, here, I just skip the lib directory.

regards

bamvor
> Otherwise the rest looks ok from a quick look/without having a toolchain
> to test things.
> Regards.
> 
>