pahole failed to get some struct info

[Xianting Tian <xianting.tian@xxxxxxxxxxxxxxxxx>]

Hi,

Sorry to disturb you, when I use below command to get info about 'struct 
hvc_struct', it failed.

$ pahole -C hvc_struct vmlinux
die__process_function: tag not supported (INVALID)!
die__process_unit: DW_TAG_dwarf_procedure (0x36) @ <0x4ebf4c> not handled!

But when I try some common struct, it is OK.

$pahole -C task_struct vmlinux

Could you help me how to fix the issue?  thanks a lot.