Profiler improvements:
- Track Functions in profile and build Function based trie
- Associate code objects with functions
- Created cpu_profile.dart library
- Major speed improvements for disassembly view
- Fix truncation of disassembly comments
- Ability to get code object ticks from disassembly view
- Inlining mini-map in disassembly view.
- Remove a bunch of unused data from profile service response
- In some cases a caller PC that is better than the PC marker is inserted into the stack trace
- Inlined functions are expanded
- Ability to clear profile
- New flag '--keep_code' which keeps deoptimized code around for use by the profiler.
General fixes:
- Fix caching in service library
- Remove pubspec.yaml before running pub get
R=asiva@google.com, rmacnak@google.com
Review URL: https://codereview.chromium.org//928833003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@44067 260f80e4-7a28-3924-810f-c04153c831b5
On arm64, in Dart code, R18(SP) is the stack pointer.
In C++ code, R31(CSP) is the stack pointer.
The profiler must choose the right one when performing
its bounds checks.
This change also fixes a bug in the InvokeDartCode stub
on arm64 so that CSP is set to the Isolate's stack
limit immediately, rather than a bit later. When it was
set a bit later, if a profiler interrupt came in in the
interim, the stack would be smashed.
R=johnmccutchan@google.com
Review URL: https://codereview.chromium.org//583683002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@40502 260f80e4-7a28-3924-810f-c04153c831b5
johnmccutchan@google.com