AArch64 stack-string extraction via bad64

Author: marirs

Cargo.toml

@@ -42,6 +42,10 @@ clap        = { version = "4", features = ["derive"] }
 anyhow      = "1"
 memmap2     = "0.9"
 iced-x86    = "1"
+# Pure-Rust AArch64 disassembler. Optional, gated behind the
+# `aarch64` feature in strix-emulator so x86-only builds don't
+# pull it in.
+bad64       = "0.12"
 
 [profile.release]
 opt-level = 3

crates/strix-cli/Cargo.toml

@@ -23,3 +23,4 @@ env_logger = { workspace = true }
 [features]
 default = []
 unicorn = ["strix/unicorn"]
+aarch64 = ["strix/aarch64"]

crates/strix-emulator/Cargo.toml

@@ -18,7 +18,16 @@ default = []
 # Gate Unicorn behind a feature so users who only need static + lang
 # strings don't have to link the C library.
 unicorn = ["dep:unicorn-engine"]
+# Opt-in AArch64 support. Pulls in `bad64` for AArch64 disassembly
+# and turns on the aarch64-specific function discovery + stack-
+# string pattern matcher. Off by default so x86-only users don't
+# pay for it.
+aarch64 = ["dep:bad64"]
 
 [dependencies.unicorn-engine]
 version = "2"
 optional = true
+
+[dependencies.bad64]
+workspace = true
+optional = true