Tess Strickland a6d06b59ec Reland "[vm] Mark snapshots that were compiled directly to ELF. ...

Since the virtual addresses in ELF snapshots are the same as in
separately saved debugging information, print the virtual address in
non-symbolic frames again when running from a snapshot compiled directly
to ELF."

Storing the relocated address as an extra field in the Image header,
which requires increasing the Image header size on 64-bit platforms,
means Image pages cannot be used reliably as HeapPages as objects no
longer start after kMaxObjectAlignment bytes.

Instead, we return to an older design that just uses the lowest bit
in the BSS offset to store whether the instructions in an Image were
compiled directly to ELF.

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-precomp-linux-release-simarm_x64-try,vm-precomp-ffi-qemu-linux-release-arm-try
Change-Id: I3819b0dc2719d69f5e8764ca8be8c6ae7171a7bc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/146560
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>

2020-05-11 08:41:17 +00:00

..

src

Reland "[vm] Mark snapshots that were compiled directly to ELF.

2020-05-11 08:41:17 +00:00

native_stack_traces.dart

[native_stack_traces] Allow static symbol offsets as locations.

2020-04-06 13:11:41 +00:00