Comments (1)
VorpalBlade
commented on July 23, 2024
I believe the issue is your demangling buffer length is too short (1024) and demangled symbol is longer than that (1301 in this case). Unfortunately there doesn't seem to be a great way to tell these cases apart as "not a rust symbol" and "too small buffer" have the same return code. (see https://github.com/rust-lang/rustc-demangle/blob/af38dc6b06b5665c79a4778268e4faf5decd19df/crates/capi/include/rustc_demangle.h#L8-L13)
I'm opening a rustc-demangle bug about this issue. For now I would suggest increasing the size limit from 1024, both C++ and Rust symbols can get very long in real code bases. Perhaps 8192 would be a reasonable limit?
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