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Milad Farazmand authored
Port 381a7f9e Original Commit Message: On Arm/64 the last return address is stored in a link register instead of being pushed to the top-of-stack like on x64/ia32. Extend the support in the tick sampler to check for samples in a frameless bytecode handler with support for checking the link register if it exists instead of top-of-stack. In addition, make the x64/ia32 check more robust by ensuring we only apply the change if the pc is a bytecode handler and the top frame isn't a bytecode handler (stub) frame. R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com BUG=v8:9162 LOG=N Change-Id: I893b45af40a48415fbbc2c9f5e9e5cd72ed8d9e7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1588888Reviewed-by: Junliang Yan <jyan@ca.ibm.com> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#61173}
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sampler.cc | ||
sampler.h |