1024824 - Add PR_SET_VMA_ANON_NAME support to the caf/b2g_kk_3.5 branch

Status: RESOLVED FIXED

(Firefox OS Graveyard :: General, defect)

Description

[Jed Davis [:jld] ⟨⏰|UTC-7⟩ ⟦he/him⟧]

Attachment: caf-vma-anon-name.patch

To recap: this is a patch from upstream Android, shipped on assorted KitKat devices, that allows assigning names to anonymous (non-file-backed) memory for reporting purposes.  Bug 1011350 and successors are for using it in Gecko.

It was suggested in bug 1014319 comment #2 that the patch also be applied to the CodeAurora branch for new KK-based B2G devices, since it forked from AOSP before the patch landed there, so this bug is for that.

The attached patch was created by cherry-picking the Flame patch from bug 1014319; it applies cleanly.  The original patch, which can be found in the branches for devices like mako (N4) and hammerhead (N5), had a slight conflict with the seccomp-bpf patches (they both add prctl commands), but it was trivial to resolve.

Comment 1

[Michael Vines [:m1] [:evilmachines]]

Got a link to the exact AOSP commit per chance?

Comment 2

[Jed Davis [:jld] ⟨⏰|UTC-7⟩ ⟦he/him⟧]

(In reply to Michael Vines [:m1] [:evilmachines] from comment #1)
> Got a link to the exact AOSP commit per chance?

      mako: https://android.googlesource.com/kernel/msm/+/f64c3ae0e44e6e0f1a729cf3c0f123ccdbdb9741
hammerhead: https://android.googlesource.com/kernel/msm/+/70edd80d0ea9efb3c42ff2243109634c34091ae1
       flo: https://android.googlesource.com/kernel/msm/+/0fa571fe6091b184f50b63373b48f44b247d4d44

Comment 3

[Michael Vines [:m1] [:evilmachines]]

Landed, should show up on CAF in a day or two.

Change-Id: Ie8bdf7850d576b895017de06ca67ec224ef8daf8