add Rust tool to rename sections within a elf file

objmv/.gitignore

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+target
+Cargo.lock

objmv/Cargo.toml

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+[package]
+name = "objmv"
+version = "0.1.0"
+authors = [
+        "Stefan Lankes <slankes@eonerc.rwth-aachen.de>",
+]
+
+[dependencies]
+regex = "0.*"

objmv/src/main.rs

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+// Copyright (c) 2017 Stefan Lankes, RWTH Aachen University
+//
+// MIT License
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+extern crate regex;
+
+use regex::RegexSet;
+use std::str;
+use std::env;
+use std::process::Command;
+use std::vec::Vec;
+
+fn rename_sections(fname: String)
+{
+	let output = Command::new("objdump")
+		.arg("-h")
+		.arg(fname.to_string())
+		.output()
+		.expect("objdump failed to start");
+
+	if output.status.success() {
+		let mut args: Vec<String> = Vec::new();
+		let re = RegexSet::new(&[r"^.text", r"^.data", r"^.bss"]).unwrap();
+		let output_string = String::from_utf8_lossy(&output.stdout);
+		let substrings = output_string.split_whitespace();
+
+		for old_name in substrings {
+			if re.is_match(old_name) {
+				let mut new_name: String = ".k".to_owned();
+				new_name.push_str(old_name.trim_left_matches('.'));
+				//println!("{} {}", old_name, new_name);
+
+				let mut cmd: String = String::new();
+				cmd.push_str(old_name);
+				cmd.push('=');
+				cmd.push_str(&new_name);
+				//println!("{}", cmd);
+
+				args.push("--rename-section".to_string());
+				args.push(cmd);
+			}
+		}
+
+		if args.len() > 0 {
+			let status = Command::new("objcopy")
+				.args(args)
+				.arg(fname.to_string())
+				.status()
+				.expect("objcopy failed to start");
+
+			if !status.success() {
+				panic!("unable to rename sections!")
+			}
+		}
+	} else {
+		panic!("unable to determine section names");
+	}
+}
+
+fn main() {
+	let mut arguments: Vec<String> = env::args().collect();
+
+	// remove unneeded programm name
+	arguments.remove(0);
+
+	for arg in arguments {
+		rename_sections(arg);
+	}
+}