test(verify): gate GOOBJ link parity with cmd/link

Assisted-by: GLM 5.3

.gitea/workflows/test.yml

@@ -119,6 +119,18 @@ jobs:
         # regression names the gate that failed instead of hiding inside the suite.
         run: go test -count=1 -timeout 10m -run 'TestGroundTruth' ./verify/...
 
+      - name: Install qemu-user
+        # The GOOBJ link regression runs the arm64 and riscv64 binaries it links
+        # under qemu-user; without the emulator those two degrade to link-only.
+        # The install is a no-op where it is already present.
+        run: dnf install -y qemu-user
+
+      - name: GOOBJ link parity
+        # The cmd/link parity gate: gasm objects substituted into a real go build
+        # must re-link on all four architectures, and the binaries must reproduce
+        # the toolchain baseline's output (native on amd64, qemu-user elsewhere).
+        run: go test -count=1 -timeout 10m -run 'TestGOOBJLinkRegression' ./verify/...
+
       - name: Coverage floor
         run: |
           perl -e '