Use mimalloc for objdiff-gui

Author: NWPlayer123

Cargo.lock

@@ -94,3 +94,6 @@ anyhow = "1.0"
 
 [target.'cfg(windows)'.build-dependencies]
 tauri-winres = "0.1"
+
+[target.'cfg(target_env = "musl")'.dependencies]
+mimalloc = "0.1"

objdiff-gui/Cargo.toml

@@ -1,5 +1,11 @@
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
 
+// musl's allocator is very slow, so use mimalloc when targeting musl.
+// Otherwise, use the system allocator to avoid extra code size.
+#[cfg(target_env = "musl")]
+#[global_allocator]
+static ALLOC: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 mod app;
 mod app_config;
 mod config;