On Thu, Dec 13, 2018 at 11:01:38PM +0530, Amit Daniel Kachhap wrote:

On Fri, Nov 30, 2018 at 9:53 PM Torsten Duwe [off-list ref] wrote:

Hi Torsten,

I was testing your patch and it seems to work fine for function trace. However
function graph trace seems broken. Is it work in progress ? or I am
missing something.

What did you base your tests on, you didn't specify?
OTOH neither did I ;-) I precluded all addressees had the full picture.

Precisely, I basically start with 4.19, but 4.20-rc shouldn't make a
difference. BUT...

quoted

[Changes from v4]

* include Ard's feedback and pending changes:
  - ADR/ADRP veneers
  - ftrace_trampolines[2]
  - add a .req for fp, just in case

" [PATCH 1/2] arm64/insn: add support for emitting ADR/ADRP instructions "
[ref] et.al, esp:
Git-commit: bdb85cd1d20669dfae813555dddb745ad09323ba

quoted

  - comment on the pt_regs.stackframe[2] mapping
* include Mark's ftrace cleanup
  - GLOBAL()
  - prepare_ftrace_return(pc, &lr, fp)

" [PATCH 1/6] linkage: add generic GLOBAL() macro "
[ref] et.al., esp:
Git-commit: 7dc48bf96aa0fc8aa5b38cc3e5c36ac03171e680

change the API this patch set relies on. AFAIU they are on their way into
mainline so I updated v5 accordingly. If you don't have these, just use v4;
the other changes are only for compatibility and cosmetics.

HTH,
	Torsten


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