[Android] memory_inspector: move to libheap_profiler.

[Android] memory_inspector: move to libheap_profiler.

This change moves towards the new libheap_profiler + heap_dump for
profiling native allocations, instead of lib.debug.malloc.
It introduces the code to install the library in the system (wrapping
the Android zygote) and the parsers.
Compared to the lib.debug.malloc, libheap_profiler is much much faster
(less overhead) and able to hook also mmaps. Its output is very
detailed and allows to get stack traces for each VM region. This will
make it possible to intersect, in the near future, mmaps and native
stack traces.
This change also introduces the support to multiple ABIs to support
both arm and arm64.

BUG=340294
NOTRY=true

Committed: https://crrev.com/c8cd4b801e8c511456ad813b80930fc46279d034
Cr-Commit-Position: refs/heads/master@{#295031}

[Primiano Tucci (use gerrit), 2014-09-10 22:20:08]

Patchset #1 (id:1) has been deleted

[Primiano Tucci (use gerrit), 2014-09-11 07:58:50]

primiano@chromium.org changed reviewers:
+ bccheng@google.com

[Primiano Tucci (use gerrit), 2014-09-11 08:25:48]

(Note to self: update prebuilts before landing)

[Primiano Tucci (use gerrit), 2014-09-11 13:02:22]

primiano@chromium.org changed reviewers:
+ bccheng@chromium.org
- bccheng@google.com

[bccheng, 2014-09-11 13:57:42]

lgtm

Rubber stamp LGTM with a minor comment. Will play with the tool on CrOS devices
and provide more useful feedback later.

https://codereview.chromium.org/549313006/diff/20001/tools/memory_inspector/m...
File tools/memory_inspector/memory_inspector/backends/android/android_backend.py
(right):

https://codereview.chromium.org/549313006/diff/20001/tools/memory_inspector/m...
tools/memory_inspector/memory_inspector/backends/android/android_backend.py:19:
from memory_inspector.backends.android import heap_dump_parser
For Android since there is managed heap as well, so native_heap_dump_parser
might be a clearer name. But the downside is the name is too long...

[Primiano Tucci (use gerrit), 2014-09-11 15:35:19]

https://codereview.chromium.org/549313006/diff/20001/tools/memory_inspector/m...
File tools/memory_inspector/memory_inspector/backends/android/android_backend.py
(right):

https://codereview.chromium.org/549313006/diff/20001/tools/memory_inspector/m...
tools/memory_inspector/memory_inspector/backends/android/android_backend.py:19:
from memory_inspector.backends.android import heap_dump_parser
On 2014/09/11 13:57:42, bccheng wrote:
> For Android since there is managed heap as well, so native_heap_dump_parser
> might be a clearer name. But the downside is the name is too long...

actually makes sense. I don't care too much about long names as long as they are
explicative. Also this one is referred to only in two places.

[Primiano Tucci (use gerrit), 2014-09-12 07:57:11]

primiano@chromium.org changed reviewers:
+ hajimehoshi@chromium.org

[Primiano Tucci (use gerrit), 2014-09-12 07:57:11]

+hajimehoshi: he did some work on memory in Blink land and a second pair of eyes
on this might be helpful.

[hajimehoshi, 2014-09-12 08:17:08]

lgtm

https://codereview.chromium.org/549313006/diff/40001/tools/memory_inspector/m...
File tools/memory_inspector/memory_inspector/backends/android/android_backend.py
(right):

https://codereview.chromium.org/549313006/diff/40001/tools/memory_inspector/m...
tools/memory_inspector/memory_inspector/backends/android/android_backend.py:229:
self.ListProcesses())
`filter` is deprecated. Let's use list comprehensions.
https://google-styleguide.googlecode.com/svn/trunk/pyguide.html#Deprecated_La...

[Primiano Tucci (use gerrit), 2014-09-12 09:07:47]

https://codereview.chromium.org/549313006/diff/40001/tools/memory_inspector/m...
File tools/memory_inspector/memory_inspector/backends/android/android_backend.py
(right):

https://codereview.chromium.org/549313006/diff/40001/tools/memory_inspector/m...
tools/memory_inspector/memory_inspector/backends/android/android_backend.py:229:
self.ListProcesses())
On 2014/09/12 08:17:08, hajimehoshi wrote:
> `filter` is deprecated. Let's use list comprehensions.
>
https://google-styleguide.googlecode.com/svn/trunk/pyguide.html#Deprecated_La...

Done.

[Primiano Tucci (use gerrit), 2014-09-16 08:42:48]

The CQ bit was checked by primiano@chromium.org

[commit-bot: I haz the power, 2014-09-16 08:43:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/549313006/80001

[commit-bot: I haz the power, 2014-09-16 08:44:34]

Committed patchset #4 (id:80001) as b3b254bb7c7c2f259aff085dc08e3255687474f8

[commit-bot: I haz the power, 2014-09-16 08:45:56]

Patchset 4 (id:??) landed as
https://crrev.com/c8cd4b801e8c511456ad813b80930fc46279d034
Cr-Commit-Position: refs/heads/master@{#295031}