rust-target-config: Allow the targets generated to be configurable

Remove further code duplication by allowing the main function to be
configurable.

(From OE-Core rev: 2d4b35a0db1220e7a7f1b6776223aa4d40a3f246)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 2 deletions

diff --git a/meta/classes/rust-target-config.bbclass b/meta/classes/rust-target-config.bbclass
index 4db91d36d5..87b7dee3ed 100644
--- a/meta/classes/rust-target-config.bbclass
+++ b/meta/classes/rust-target-config.bbclass
@@ -357,10 +357,16 @@ rust_gen_target[vardepsexclude] += "RUST_HOST_SYS RUST_TARGET_SYS ABIEXTENSION l
 
 do_rust_gen_targets[vardeps] += "DATA_LAYOUT TARGET_ENDIAN TARGET_POINTER_WIDTH TARGET_C_INT_WIDTH MAX_ATOMIC_WIDTH FEATURES"
 
+RUST_TARGETGENS = "BUILD"
+
 python do_rust_gen_targets () {
     wd = d.getVar('WORKDIR') + '/targets/'
-    build_arch = d.getVar('BUILD_ARCH')
-    rust_gen_target(d, 'BUILD', wd, build_arch)
+    # Order of BUILD, HOST, TARGET is important in case the files overwrite, most specific last
+    rust_gen_target(d, 'BUILD', wd, d.getVar('BUILD_ARCH'))
+    if "HOST" in d.getVar("RUST_TARGETGENS"):
+        rust_gen_target(d, 'HOST', wd, d.getVar('HOST_ARCH'))
+    if "TARGET" in d.getVar("RUST_TARGETGENS"):
+        rust_gen_target(d, 'TARGET', wd, d.getVar('TARGET_ARCH'))
 }
 
 addtask rust_gen_targets after do_patch before do_compile