33 lines
723 B
Sed
Executable file
33 lines
723 B
Sed
Executable file
#!/usr/bin/env -S sed -rf
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# Unmangle Rust symbols
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# See https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=cae15db74999edb96dd9f5bbd4d55849391dd92b
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# Example, with [FlameGraph](https://github.com/brendangregg/FlameGraph):
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# perf record -g target/debug/bin
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# perf script | stackcollapse-perf | rust-unmangle | flamegraph > perf.svg
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# Remove hash and address offset
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s/::h[0-9a-f]{16}//g
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s/\+0x[0-9a-f]+//g
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# Convert special characters
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s/\$C\$/,/g
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s/\$SP\$/@/g
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s/\$BP\$/*/g
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s/\$RF\$/\&/g
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s/\$LT\$/</g
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s/\$GT\$/>/g
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s/\$LP\$/(/g
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s/\$RP\$/)/g
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s/\$u20\$/ /g
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s/\$u27\$/'/g
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s/\$u5b\$/[/g
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s/\$u5d\$/]/g
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s/\$u7b\$/{/g
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s/\$u7d\$/}/g
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s/\$u7e\$/~/g
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# Fix . and _
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s/\.\./::/g
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s/[^\.]\.[^\.]/./g
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s/([;:])_/\1/g
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