Closed
Bug 1648662
Opened 5 years ago
Closed 3 years ago
Support Gecko Profiler on macOS/AArch64
Categories
(Core :: Gecko Profiler, task, P2)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: mozbugz, Unassigned)
References
(Blocks 1 open bug)
Details
Ideally with stack sampling.
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Comment 1•5 years ago
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Stack walking should be easy, because macOS/aarch64 always uses frame pointers, in the x29 register.
ARM64 Function Calling Conventions:
The frame pointer register (x29) must always address a valid frame record, although some functions—such as leaf functions or tail calls—may elect not to create an entry in this list. As a result, stack traces will always be meaningful, even without debug information.
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Updated•5 years ago
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Component: General → Gecko Profiler
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Comment 2•5 years ago
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This mostly works. Framepointer stackwalking form arm64 was implemented in bug 1658375. Sometimes it obtains wrong addresses, which I filed bug 1673755 about.
Depends on: 1658375
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Comment 3•3 years ago
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This is done.
Status: NEW → RESOLVED
Closed: 3 years ago
Resolution: --- → WORKSFORME
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Description
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