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d9a14c9521
The rust compiler or linker (I'm not sure which) emits .debug_pubnames and .debug_pubtypes sections in the binaries. They are supposed to speed up launching a debugger, but they're obsolete. They've been superseded by .debug_names section in more recent DWARF spec and debuggers, and gdb and lldb just ignores them. I could not find any way to prevent rustc / ldb / mold from emitting these sections in the first place. So this commit adds a hack to strip them off afterwards. This makes the binaries about 30% smaller, with the downside of adding about 30 s to the build time in CI. That seems like a good tradeoff, as smaller binaries can speed up other steps.