[QUESTION] support perf record --call-graph dwarf for mips

[Tiezhu Yang]

Hi,

In the current upstream mainline kernel, perf record --call-graph dwarf
is not supported for architecture mips64. I find the following related
patches about this feature by David Daney <david.daney@xxxxxxxxxx> and
Archer Yan <ayan@xxxxxxxxxxxx> in Sep 2019.

[1/2] Support mips unwinding and dwarf-regs
https://lore.kernel.org/patchwork/patch/1126521/

[2/2] Support extracting off-line stack traces from user-space with perf
https://lore.kernel.org/patchwork/patch/1126520/

Is this a work in progress?
Could you please give me some feedback?
Thank you for your help.

Thanks,
Tiezhu