LTO-DUMP(1)

💅 lto-dump — the manual, bestie edition

okay so you found the lto-dump(1) page and you're like "what even is this" — don't worry, I got you. This is the GNU manual for lto-dump, and yes it's a real tool, and yes it's lowkey iconic once you know what it does. 🫶

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✨ NAME ✨

lto-dump — bestie, it's the tool for dumping LTO object files. that's the whole vibe. 💖

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🌸 SYNOPSIS 🌸

lto-dump [-list]
     [-demangle]
     [-defined-only]
     [-print-value]
     [-name-sort]
     [-size-sort]
     [-reverse-sort]
     [-no-sort]
     [-symbol=]
     [-objects]
     [-type-stats]
     [-tree-stats]
     [-gimple-stats]
     [-dump-level=]
     [-dump-body=]
     [-help] lto-dump

like, that's the whole shape of it. slay. ✨

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🦋 DESCRIPTION 🦋

so lto-dump is this tool you run in conjunction with GCC to dump link time optimization object files. that's it, that's the job, and it does it so well. no cap. 💅

it's giving "I peek inside your LTO objects so you don't have to." main character energy fr fr. 👑

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🎀 OPTIONS 🎀

okay here's the part you actually came for. every single flag, present and accounted for, no skipping, periodt:

• -list — dumps a whole list of details about functions and variables. like a little roster of everything. 📋
• -demangle — dumps the output demangled. because nobody wants to read mangled names, bestie. 😭
• -defined-only — dumps only the defined symbols. undefined ones? not invited to the party. 🙈
• -print-value — dumps the initial values of the variables. the origin story, if you will. ⭐
• -name-sort — sorts the symbols alphabetically. a through z, organized queen. 🔤
• -size-sort — sorts the symbols according to size. big ones, small ones, all of them. 📏
• -reverse-sort — dumps the symbols in reverse order. chaos, but make it intentional. 🔄
• -no-sort — dumps the symbols in order of occurrence. no sorting, just vibes. 🌈
• -symbol= — dumps the details of a specific symbol. tell it which one, it'll spill the tea. 🍵
• -objects — dumps the details of the LTO objects themselves. 🧚
• -type-stats — dumps the statistics of tree types. numbers! stats! we love data. 📊
• -tree-stats — dumps the statistics of trees. 🌳
• -gimple-stats — dumps the statistics of gimple statements. say it with me: gimple. 💜
• -dump-level= — for deciding the optimization level of body. you give it the level, it decides. 🎚️
• -dump-body= — dumps the specific gimple body. the body of the operation, literally. 🫶
• -help — displays the dump tool help. when in doubt, ask for help, that's self care. 💖

ngl the flags all take no argument except the ones with = — -symbol=, -dump-level= and -dump-body= — those are the ones where you gotta actually tell it something. 🎀

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👑 COPYRIGHT 👑

Copyright (c) 2017-2026 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with the Invariant Sections being "GNU General Public License" and "Funding Free Software", the Front-Cover texts being (a) (see below), and with the Back-Cover Texts being (b) (see below). A copy of the license is included in the gfdl(7) man page.

(a) The FSF's Front-Cover Text is:

A GNU Manual

(b) The FSF's Back-Cover Text is:

You have freedom to copy and modify this GNU Manual, like GNU
software.  Copies published by the Free Software Foundation raise
funds for GNU development.

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and that's the whole page bestie, you ate it up. 💅✨

🦋 cute little sign-off: this was gcc-16, dated 2026-10-29 — from the LTO-DUMP(1) manual, obviously. go dump something iconic. 🎀💖