LLVM-CXXFILT(1)

✨ LLVM-CXXFILT(1) ✨

okay bestie, so this is the LLVM manual page for llvm-cxxfilt and I'm about to make demangling symbols sound as cute as it actually is 💖

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🌸 NAME 🌸

llvm-cxxfilt — the LLVM symbol name demangler 💅

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🦋 SYNOPSIS 🦋

llvm-cxxfilt [options] [mangled names…]

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💜 DESCRIPTION 💜

So llvm-cxxfilt is a symbol demangler, right? It's literally built to be a drop-in replacement for the GNU c++filt tool 🫶 It takes a bunch of symbol names and prints their demangled form on the standard output stream. And if a name can't be demangled? No drama, no error, it just gets printed as is. Iconic behaviour honestly.

And if you don't hand it any names on the command-line? Then it just reads them interactively from the standard input stream. But here's the detail you need to know, bestie: when it's reading from standard input, each input line gets split on characters that are not part of valid Itanium name manglings. Like, characters that aren't alphanumeric, '.', '$', or '_'. And the separators between names? Those get copied to the output as is. Preserved. Untouched. Periodt ✨

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🎀 EXAMPLE 🎀

$ llvm-cxxfilt _Z3foov _Z3bari not_mangled
foo()
bar(int)
not_mangled
$ cat input.txt
| _Z3foov *** _Z3bari *** not_mangled |
$ llvm-cxxfilt < input.txt
| foo() *** bar(int) *** not_mangled |

see how not_mangled just... stays not_mangled? she's unbothered 💀 and the *** separators survived the whole trip, as promised.

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✨ OPTIONS ✨

• --format=<value>, -s — which mangling scheme to assume. Valid values are auto (that's the default, it auto-detects the style) and gnu (assume the GNU/Itanium style).
• --help, -h — prints a summary of the command line options. cute of her.
• --no-strip-underscore, -n — do not strip a leading underscore. This is the default for all platforms except Mach-O based hosts.
• --strip-underscore, -_ — strips a single leading underscore, if there is one, from each input name before demangling. This is on by default on Mach-O based platforms.
• --types, -t — attempts to demangle names as type names as well as function names. multitasking queen 👑
• --version — displays the version of the llvm-cxxfilt executable.
• @<FILE> — read command-line options from the response file <FILE>.

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🔥 EXIT STATUS 🔥

llvm-cxxfilt returns 0 unless it encounters a usage error — and in that case, a non-zero exit code gets returned. so basically, zero means we're good 💚

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🌈 SEE ALSO 🌈

• llvm-nm(1)

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👑 AUTHOR 👑

Maintained by the LLVM Team (https://llvm.org/). legends, fr fr.

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💖 COPYRIGHT 💖

2003-2024, LLVM Project

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and that's the whole vibe check, bestie 🧚 this was the LLVM 15 release of the page, dated 2024-04-14, and you can find it chilling in the LLVM manual section. go demangle something gorgeous 💅✨