Import QEMU upstream snapshot d2e570c

Upstream: https://gitlab.com/qemu-project/qemu.git

Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475

scripts/make-config-poison.sh

@@ -0,0 +1,19 @@
+#! /bin/sh
+
+if test $# = 0; then
+  exit 0
+fi
+
+# Create list of config switches that should be poisoned in common code,
+# but filter out several which are handled manually.
+exec sed -n \
+  -e' /CONFIG_TCG/d' \
+  -e '/CONFIG_USER_ONLY/d' \
+  -e '/CONFIG_SOFTMMU/d' \
+  -e '/TARGET_NOT_USING_LEGACY_LDST_PHYS_API/d' \
+  -e '/TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API/d' \
+  -e '/^#define / {' \
+  -e    's///' \
+  -e    's/ .*//' \
+  -e    's/^/#pragma GCC poison /p' \
+  -e '}' "$@" | sort -u