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Credit goes to chromium.googlesource.com

Create a libunwindstackUnwinder for Android.

Currently base::NativeUnwinderAndroid only uses parts from
libunwindstack, skips certain module addresses (to fallback
on the more specific chrome unwinder), and does not support
java frames.

We plan to support java frames (jit, interpreted, compiled) by
using more logic from libunwindstack. However to avoid
reimplementing the logic from libunwindstack we're adding a new
unwinder that uses the external API of libunwindstack to avoid code
duplication. We will use this to evaluate correctness and
performance. For now we limit it to the browser main thread until
we've finished our evaluation. This new unwinder does follow the
base::Unwinder API but doesn't support partial stack unwinds (it
either fully succeeds or fully fails). Thus we use it by itself
without other unwinders.


Bug: b/246344501,b/246509988

Change-Id: I135a72a29ddd4c3422de6000f3723bfae7ff0788
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3892400
Reviewed-by: Tushar Agarwal <[email protected]>
Reviewed-by: Daniel Cheng <[email protected]>
Auto-Submit: Stephen Nusko <[email protected]>
Commit-Queue: Tushar Agarwal <[email protected]>
Reviewed-by: Mike Wittman <[email protected]>
Commit-Queue: Stephen Nusko <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1051215}
32 files changed
tree: 990bf7102f76c21c8279e19eed1053965a0f7685
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. build/
  6. build_overrides/
  7. buildtools/
  8. cc/
  9. chrome/
  10. chromecast/
  11. chromeos/
  12. codelabs/
  13. components/
  14. content/
  15. courgette/
  16. crypto/
  17. dbus/
  18. device/
  19. docs/
  20. extensions/
  21. fuchsia_web/
  22. gin/
  23. google_apis/
  24. google_update/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. media/
  31. mojo/
  32. native_client_sdk/
  33. net/
  34. pdf/
  35. ppapi/
  36. printing/
  37. remoting/
  38. rlz/
  39. sandbox/
  40. services/
  41. skia/
  42. sql/
  43. storage/
  44. styleguide/
  45. testing/
  46. third_party/
  47. tools/
  48. ui/
  49. url/
  50. weblayer/
  51. .clang-format
  52. .clang-tidy
  53. .eslintrc.js
  54. .git-blame-ignore-revs
  55. .gitattributes
  56. .gitignore
  57. .gn
  58. .mailmap
  59. .rustfmt.toml
  60. .vpython3
  61. .yapfignore
  62. AUTHORS
  63. BUILD.gn
  64. CODE_OF_CONDUCT.md
  65. codereview.settings
  66. DEPS
  67. DIR_METADATA
  68. ENG_REVIEW_OWNERS
  69. LICENSE
  70. LICENSE.chromium_os
  71. OWNERS
  72. PRESUBMIT.py
  73. PRESUBMIT_test.py
  74. PRESUBMIT_test_mocks.py
  75. README.md
  76. WATCHLISTS
README.md

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