On 09/08/17 15:57, Jiong Wang wrote:
>
>> This patch doesn't depend on other patches, so it can go in now.
>>
> I had committed this patch after addressing all comments, but just reverted.
>
> it's my bad haven't give it a quick build.  It depends on AT_HWCAP defined in patch 1 and the value needs to be synced with kernel...
>

Sorry, the issue should be two header files are missing.

"auxv.h" to declare target_auxv_search and "elf/common.h" to define AT_HWCAP
(I miss read the buildbot error message as something like missing "HWCAP_APIA"...)

This patch was splitted from patch 6, I forget to move those two header files to
this patch.

Attached patch fixed this and passed gdb cross build, OK for master?

gdb/
2017-08-09  Jiong Wang  <jiong.wang@arm.com>

	* aarch64-linux-tdep.c: Include "auxv.h" and "elf/common.h".
	(aarch64_linux_core_read_description): New function.
	(aarch64_linux_init_abi): Register gdbarch_core_read_description.