rust: add utility procedural macro crate

This commit adds a helper crate library, qemu-api-macros for derive (and
other procedural) macros to be used along qemu-api.

It needs to be a separate library because in Rust, procedural macros, or
macros that can generate arbitrary code, need to be special separate
compilation units.

Only one macro is introduced in this patch, #[derive(Object)]. It
generates a constructor to register a QOM TypeInfo on init and it must
be used on types that implement qemu_api::definitions::ObjectImpl trait.

Reviewed-by: Junjie Mao <junjie.mao@hotmail.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/r/dd645642406a6dc2060c6f3f17db2bc77ed67b59.1727961605.git.manos.pitsidianakis@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2 files changed, 6 insertions, 2 deletions

diff --git a/scripts/archive-source.sh b/scripts/archive-source.sh
index 9d9b2e2d5e..62a2cf45d2 100755
--- a/scripts/archive-source.sh
+++ b/scripts/archive-source.sh
@@ -26,7 +26,9 @@ sub_file="${sub_tdir}/submodule.tar"
 # independent of what the developer currently has initialized
 # in their checkout, because the build environment is completely
 # different to the host OS.
-subprojects="keycodemapdb libvfio-user berkeley-softfloat-3 berkeley-testfloat-3"
+subprojects="keycodemapdb libvfio-user berkeley-softfloat-3
+  berkeley-testfloat-3 proc-macro2-1-rs quote-1-rs
+  syn-2-rs unicode-ident-1-rs"
 sub_deinit=""
 
 function cleanup() {
diff --git a/scripts/make-release b/scripts/make-release
index 6e0433de24..cf7d694ef7 100755
--- a/scripts/make-release
+++ b/scripts/make-release
@@ -17,7 +17,9 @@ if [ $# -ne 2 ]; then
 fi
 
 # Only include wraps that are invoked with subproject()
-SUBPROJECTS="libvfio-user keycodemapdb berkeley-softfloat-3 berkeley-testfloat-3"
+SUBPROJECTS="libvfio-user keycodemapdb berkeley-softfloat-3
+  berkeley-testfloat-3 proc-macro2-1-rs quote-1-rs
+  syn-2-rs unicode-ident-1-rs"
 
 src="$1"
 version="$2"