Add readelf nu script

tree/.config/nushell/config.nu

@@ -545,4 +545,8 @@ alias gpu = git push -u origin
 alias gsta = git stash push
 alias gstp = git stash pop
 
+# random scripts
+source ~/.local/nu/readelf.nu
+
+# init starship prompt
 source ~/.cache/starship/init.nu

tree/.local/nu/readelf.nu

@@ -0,0 +1,36 @@
+#!/bin/env nu
+
+def elf-sections [
+    elf: string # ELF-file to inspect
+] {
+	LANG=C readelf --wide --sections $elf |
+		parse -r " +\\[ *\\S+\\] +(?<name>\\.\\S+) +(?<type>\\S+) +0*(?<addr>\\S+) +0*(?<off>\\S+) +0*(?<size>\\S+).*" |
+		into int -r 16 "addr" "off" "size"
+
+}
+
+def elf-symbols [
+    elf: string # ELF-file to inspect
+	--section (-s): string
+] {
+
+	let symbols = (
+		LANG=C readelf --wide --syms --demangle=rust $elf |
+			tail -n +5 |
+			parse -r " *(?<num>\\d+): (?<addr>\\S+) +(?<size>\\S+) +(?<type>\\S+) +(?<bind>\\S+) +(?<vis>\\S+) +(?<ndx>\\S+) (?<name>.*)" |
+			into int "size" |
+			into int "num" |
+			into int -r 16 "addr"
+	)
+
+
+	if $section == null {
+		$symbols
+	} else {
+		let section = (elf-sections $elf | where name == $section | first)
+		let section_start = ($section | get addr)
+		let section_end = ($section_start + ($section | get size))
+
+		$symbols | where addr >= $section_start && addr < $section_end
+	}
+}