[Reland] Use llvm symbolizer for stack script.

llvm symbolizer is a more efficient symbolizer than addr2line, objdump,

In this cl, I 1)created a wrapper instance to interact with
llvm symbolizer, 2)made the stack script to use llvm symbolizer instance,
and then 3)added llvm symbolizer into isolated inputs.

Bug: 774267
Change-Id: I43d305b4c0c94be614ee4cad35b40f04b3d3ae20
Reviewed-on: https://chromium-review.googlesource.com/810007
Reviewed-by: John Budorick <jbudorick@chromium.org>
Reviewed-by: agrieve <agrieve@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Zhiling Huang <hzl@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#522520}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: b2754af2ed37b2bf30efac6234fcecbdd941c4bb
1 file changed
tree: 61d01bff44898efbd645a51ca95f3f461d308d2d
  1. google/
  2. llvm_symbolizer.py