Make PS5 payload build reproducible

scripts/build_ps5.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+set -eu
+
+ROOT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
+
+if [ -z "${PS5_PAYLOAD_SDK:-}" ]; then
+  LOCAL_SDK="$ROOT_DIR/.toolchains/ps5-payload-sdk/ps5-payload-sdk"
+  if [ -d "$LOCAL_SDK" ]; then
+    PS5_PAYLOAD_SDK="$LOCAL_SDK"
+    export PS5_PAYLOAD_SDK
+  else
+    echo "PS5_PAYLOAD_SDK is unset and no local SDK exists at $LOCAL_SDK" >&2
+    exit 1
+  fi
+fi
+
+if [ -z "${LLVM_CONFIG:-}" ] && [ -x /opt/homebrew/opt/llvm@18/bin/llvm-config ]; then
+  LLVM_CONFIG=/opt/homebrew/opt/llvm@18/bin/llvm-config
+  export LLVM_CONFIG
+fi
+
+if [ -n "${LLVM_CONFIG:-}" ]; then
+  LLVM_BIN=$(dirname -- "$LLVM_CONFIG")
+  PATH="$PS5_PAYLOAD_SDK/bin:$LLVM_BIN:$PATH"
+else
+  PATH="$PS5_PAYLOAD_SDK/bin:$PATH"
+fi
+export PATH
+
+exec make -C "$ROOT_DIR" "$@"