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September 1, 2021 02:06
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Script to unmangle Rust symbols
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| #!/usr/bin/sed -rf | |
| # Unmangle Rust symbols | |
| # See https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=cae15db74999edb96dd9f5bbd4d55849391dd92b | |
| # Example, with [FlameGraph](https://github.com/brendangregg/FlameGraph): | |
| # perf record -g target/debug/bin | |
| # perf script | stackcollapse-perf | rust-unmangle | flamegraph > perf.svg | |
| # Remove hash and address offset | |
| s/::h[0-9a-f]{16}//g | |
| s/\+0x[0-9a-f]+//g | |
| # Convert special characters | |
| s/\$C\$/,/g | |
| s/\$SP\$/@/g | |
| s/\$BP\$/*/g | |
| s/\$RF\$/\&/g | |
| s/\$LT\$/</g | |
| s/\$GT\$/>/g | |
| s/\$LP\$/(/g | |
| s/\$RP\$/)/g | |
| s/\$u20\$/ /g | |
| s/\$u27\$/'/g | |
| s/\$u5b\$/[/g | |
| s/\$u5d\$/]/g | |
| s/\$u7b\$/{/g | |
| s/\$u7d\$/}/g | |
| s/\$u7e\$/~/g | |
| # Fix . and _ | |
| s/\.\./::/g | |
| s/[^\.]\.[^\.]/./g | |
| s/([;:])_/\1/g |
Could I know a way of using this script? I have output of all the functions of a library saved in a text file currently, Is there any way that I could use this tool to unmangle the symbols.
It's in the header of the file. Just chmod +x and it should be fine.
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Moved to https://github.com/Yamakaky/rust-unmangle