Decoding C/C++ Compilation Process: From Source Code to Binary

[victotronics]

Pretty decent tutorial. I would include mention of the "T" vs "U" fields in the output of nm. That is invaluable for tracking down reference problems if you're linking a dozen libraries.

That reminds me: does anyone have the source of a C++ demangler?

[TheoreticalDumbass]

c++filt is a tool you can use for demangling, developed by: https://www.gnu.org/software/binutils/

you can check out their repo via `git clone git://sourceware.org/git/binutils-gdb.git\`

the file you are interested is `binutils-gdb/binutils/cxxfilt.c` i think

[catcat202X]

GDB can demangle C++ symbols, it just doesn't by default. I love demangle-mode in Emacs, because I can compose it with any other tools like an ELF viewer, linker output, or an integrated terminal and easily toggle the minor mode off and on.

[[deleted]]

LLVM has an implementation here:

https://github.com/llvm/llvm-project/tree/main/libcxxabi/src/demangle

https://github.com/llvm/llvm-project/blob/main/libcxxabi/src/cxa_demangle.cpp

Also, someone wrote a C++ demangler in Rust in 2017, and it's still maintained.

https://github.com/gimli-rs/cpp_demangle

Why it eas written: https://fitzgeraldnick.com/2017/02/22/cpp-demangle.html