Add --frame-pointers to control preservation of frame pointers
#13860
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As an unrelated aside, I found this in Apple's ARM64 docs:
Could the |
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Frame pointers are extremely useful for quickly generating accurate stack traces when debugging and profiling release builds. In particular, it allows the use of Linux's perf stack, which offers high-performance profiling but only supports unwinding via frame pointers, barring some extremely slow workarounds: https://blogs.gnome.org/chergert/2022/12/31/frame-pointers-and-other-practical-near-term-solutions/
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Sija
reviewed
Nov 9, 2023
Co-authored-by: Sijawusz Pur Rahnama <sija@sija.pl>
Co-authored-by: Sijawusz Pur Rahnama <sija@sija.pl>
HertzDevil
requested changes
Nov 27, 2023
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Nice! I just tested this patch with a program I was analyzing with linux perf tools, and most of the unknown symbols are now explained 🥳 Weirdly I returned to crystal 1.10.1 without the frame pointers, and perf still finds the symbols 🤨 |
Co-authored-by: Quinton Miller <nicetas.c@gmail.com>
HertzDevil
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Jan 25, 2024
straight-shoota
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Jan 26, 2024
straight-shoota
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--frame-pointers to control preservation of frame pointers
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Frame pointers are extremely useful for quickly generating accurate stack traces when debugging and profiling release builds. In particular, it allows the use of Linux's perf stack, which offers high-performance profiling but only supports unwinding via frame pointers, barring some extremely slow workarounds:
https://blogs.gnome.org/chergert/2022/12/31/frame-pointers-and-other-practical-near-term-solutions/