| commit | 72d0d9981e6aba75940a5d44ca12b42a05216aae | [log] [tgz] |
|---|---|---|
| author | Slava Egorov <vegorov@google.com> | Thu Jun 17 15:56:12 2021 +0000 |
| committer | commit-bot@chromium.org <commit-bot@chromium.org> | Thu Jun 17 15:56:12 2021 +0000 |
| tree | e5d20e47e7b93ebe3f70aabaec797772f1947e2c | |
| parent | 2e411e5957654a4754046798e2ec512d2d6a7037 [diff] |
Revert "[vm/aot] Emit simple .eh_frame in ARM/ARM64 ELF snapshots." This reverts commit ddfbe05eeea18a990d87a828c6634a5ea1e70d6b. Reason for revert: broke ARM32 builds Original change's description: > [vm/aot] Emit simple .eh_frame in ARM/ARM64 ELF snapshots. > > This allows simpleperf to unwind through AOT compiled frames and > consequently allows Android tooling to produce useful > timelines and flamegraphs. > > Note: emitted .eh_frame is rather primitive and does not cover all possible > asynchronous unwinding cases (e.g. tick might arrive before Dart frame was > fully setup). We will address this in a separate CL. > > Additionally, this CL tweaks .eh_frame emitted in assembly snapshots to > workaround Android-specific unwinding bug in libunwindstack (b/191113792): > current versions of libunwindstack don't push CFA value when evaluating > DW_CFA_expression. > > TEST=tested manually > > Bug: b/184102680,b/190248517 > Change-Id: Iea209b2354cca0753385093f165b0320857104b1 > Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/203771 > Commit-Queue: Slava Egorov <vegorov@google.com> > Reviewed-by: Tess Strickland <sstrickl@google.com> TBR=vegorov@google.com,sstrickl@google.com Change-Id: I57ab5df1d567bb4ddea813024245ef606712a79c No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: b/184102680,b/190248517 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/203778 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Slava Egorov <vegorov@google.com>
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