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TheJokr
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Apr 2, 2026
foundations includes a feature for memory profiling, which is very useful. Unfortunately, that feature does not natively work with the `jeprof` CLI tool because of the lack of a /pprof/symbol endpoint. Since many Rust binaries are built with PIE, trying to post-hoc symbolize with jeprof/pprof is quite challenging -- especially if running on a remote system that does not have debug symbols available. This commit implements /pprof/symbol, following the golang implementation (https://cs.opensource.google/go/go/+/refs/tags/go1.26.1:src/net/http/pprof/pprof.go;l=197) as a guide. The actual symbolization is performed with the `backtrace` crate, which was previously an indirect dependency and now becomes a direct dependency.
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foundations includes a feature for memory profiling, which is very useful. Unfortunately, that feature does not natively work with the
jeprofCLI tool because of the lack of a /pprof/symbol endpoint. Since many Rust binaries are built with PIE, trying to post-hoc symbolize with jeprof/pprof is quite challenging -- especially if running on a remote system that does not have debug symbols available.This commit implements /pprof/symbol, following the golang implementation
(https://cs.opensource.google/go/go/+/refs/tags/go1.26.1:src/net/http/pprof/pprof.go;l=197) as a guide. The actual symbolization is performed with the
backtracecrate, which was previously an indirect dependency and now becomes a direct dependency.