Toon Verwaest 3cad6bf5d7 Reland^2 "[runtime] Move Context::native_context to the map" ... This is a reland of c7c47c68f2. This makes TSAN happy in addition to: Previously I presumed that the context read from a frame in the profiler was a valid context. Turns out that on non-intel we're not guaranteed that the frame is properly set up. In the case we looked at, the profiler took a sample right before writing the frame marker indicating a builtin frame, causing the "context" pointer from that frame to be a bytecode array. Since we'll read random garbage on the stack as a possible context pointer, I made the code reading the native context from it a little more defensive. Bug: v8:9860 Tbr: ulan@chromium.org, neis@chromium.org, ishell@chromium.org Original change's description: > [runtime] Move Context::native_context to the map > > Remove the native context slot from contexts by making context maps > native-context-specific. Now we require 2 loads to go from a context to the > native context, but we have 1 field fewer to store when creating contexts. > > Change-Id: I3c0d7c50c94060c4129db684f46a567de6f30e8d > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1859629 > Commit-Queue: Toon Verwaest <verwaest@chromium.org> > Reviewed-by: Igor Sheludko <ishell@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Reviewed-by: Maya Lekova <mslekova@chromium.org> > Reviewed-by: Georg Neis <neis@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Cr-Commit-Position: refs/heads/master@{#64296} Change-Id: I4d0ab4cbbb23a9ae616407f17ef8f35a0b68ddb4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864654 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#64360}		2019-10-17 17:33:08 +00:00
..
bytecode_expectations	Reland^2 "[runtime] Move Context::native_context to the map"	2019-10-17 17:33:08 +00:00
bytecode-expectations-printer.cc	[cleanup] Eliminate non-const reference parameters	2019-09-10 09:31:07 +00:00
bytecode-expectations-printer.h	[cleanup] Eliminate non-const reference parameters	2019-09-10 09:31:07 +00:00
generate-bytecode-expectations.cc	[top-level-await] Add support for parsing top level await	2019-09-24 14:01:32 +00:00
interpreter-tester.cc	Move more relevant files to src/objects	2019-05-23 08:52:30 +00:00
interpreter-tester.h	Move remaining files in src/	2019-05-24 18:24:36 +00:00
source-position-matcher.cc	Move more relevant files to src/objects	2019-05-23 08:52:30 +00:00
source-position-matcher.h	Move remaining files in src/	2019-05-24 18:24:36 +00:00
test-bytecode-generator.cc	Reland^2 "[runtime] Move Context::native_context to the map"	2019-10-17 17:33:08 +00:00
test-interpreter-intrinsics.cc	Move remaining files in src/	2019-05-24 18:24:36 +00:00
test-interpreter.cc	[cleanup] Eliminate non-const reference parameters	2019-09-10 09:31:07 +00:00
test-source-positions.cc	Move remaining files in src/	2019-05-24 18:24:36 +00:00