Commit Graph

11 Commits

Author SHA1 Message Date
Vyacheslav Egorov 1dd4559271 [vm] Add Native->VM transitions when dereferencing API handles.
For example setting return value unwraps handles and stores
raw pointer values to the stack which might race with GC
in another thread.

This CL adds assertions in helper methods from Api class which
unwrap API handles and fixes all places that were revealed by
those assertions.

Caveat: we still permit to check whether handle contains
Smi or not without entering VM state - because GC does not
change this property.

Bug: b/127482366
Change-Id: I59f08c2a91935995514fb70607c2777aa2844d94
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/95654
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-03-08 00:06:37 +00:00
Ryan Macnak 7514ce941e [vm] Assert handles are only allocated when the thread is preventing safepoints.
Threads in the native or blocked states don't prevent safepoints, so they may run concurrently with a safepoint operation like GC. It is not safe for handles to be allocated while the GC is visiting them, so these threads must not allocate handles. Assert only threads in the VM or generated states, which prevent safepoints until they check in, may allocate handles. (Generated code does not allocate handles, but leaf runtime entries remain in the generated state.)

Bug: https://github.com/dart-lang/sdk/issues/34883
Change-Id: I1a211778f7ef96b53a2405f0ee9dde7871b122b6
Reviewed-on: https://dart-review.googlesource.com/c/81540
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-10-31 19:51:52 +00:00
Ryan Macnak 8da46d35f5 [vm] Move heap-related code to its own subdirectory (cf. compiler).
Remove some dead includes.

Change-Id: I31f3e739e5ee46dcbba5d6a2f091491b46402943
Reviewed-on: https://dart-review.googlesource.com/60146
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2018-06-20 00:39:49 +00:00
Zachary Anderson 6cd8a79078 VM: Re-format to use at most one newline between functions
R=asiva@google.com

Review-Url: https://codereview.chromium.org/2974233002 .
2017-07-13 08:08:37 -07:00
Ben Konyi 259c7ac2be Resolution for issue #5092: Unit test handle checks consider dangling handles to be valid.
Updated the IS_VALID(handle) macro to also check if the handle is still in
scope or is a read-only handle.

BUG=
R=asiva@google.com

Review-Url: https://codereview.chromium.org/2640573003 .
2017-01-20 15:50:15 -08:00
Ivan Posva 9c0c6cb5c2 Add product mode:
- Add PRODUCT define and build mode to gyp configurations.
- Add product mode to test harness.
- Start to unify list of flags.
- Allow flags to be constant for particular build configurations.

R=fschneider@google.com

Review URL: https://codereview.chromium.org/1663863002 .
2016-02-03 21:10:30 -08:00
Ivan Posva 4bd7cdc75c - Ensure that HandleScope is initialized with a thread. (Remove
deprecated isolate based API.)
- Update all code impacted by this change. E.g. DARTSCOPE
- TEST_CASE now passes the current thread as a parameter to the   unit test.

BUG=
R=asiva@google.com

Review URL: https://codereview.chromium.org//1310463005 .
2015-09-01 17:18:55 -07:00
asiva@google.com a02f310d91 Added code to trace zone and handles creation/deletion under flags
--trace-zone and trace-handles
Review URL: https://codereview.chromium.org//11879005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@17001 260f80e4-7a28-3924-810f-c04153c831b5
2013-01-12 00:33:16 +00:00
sgjesse@google.com bf67f24098 Move assert.h/assert.cc from runtime/vm to runtime/platform
The purpose of this change is twofold:

1. Source in the bin directory can now use the same assertions as
   source in the vm directory. The ASSERT macro used by the code
   in runtime/bin was just defined to use assert from the standard
   C library.
2. Moving other implementation parts from runtime/vm to
   runtime/platform (e.g. classes Monitor and Mutex) for sharing
   between runtime/bin and runtime/vm will be easier as these
   implementations rely on these assertion macros.

Created two gypi files for the platform directory. One for the
headers and one for the source. The source one is only included
when building the VM library and will be present in libdart.a
when the dart executable is linked.

All the code for asserts is still in the dart namespace.

Also re-arranged the order of includes to be alphabetically in
the files touched.

R=ager@google.com, iposva@google.com

BUG=
TEST=

Review URL: http://codereview.chromium.org//9189003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3335 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-16 12:28:10 +00:00
asiva@google.com 5cf3ad018a Changes to pass the current isolate to all runtime and native calls.
Review URL: http://codereview.chromium.org//8528010

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@1499 260f80e4-7a28-3924-810f-c04153c831b5
2011-11-12 05:55:22 +00:00
dgrove@google.com 4c0f559d23 Initial checkin.
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15 260f80e4-7a28-3924-810f-c04153c831b5
2011-10-05 05:20:07 +00:00