ci: Add fuzz step to cannon build

.circleci/config.yml

@@ -85,6 +85,10 @@ jobs:
             gotestsum --format=standard-verbose --junitfile=/tmp/test-results/cannon.xml \
             -- -parallel=2 -coverpkg=github.com/ethereum-optimism/optimism/cannon/... -coverprofile=coverage.out ./...
           working_directory: cannon
+      - run:
+          name: Cannon Go fuzz tests
+          command: make fuzz
+          working_directory: cannon
       - run:
           name: upload Cannon coverage
           command: codecov --verbose --clean --flags cannon-go-tests

cannon/Makefile

@@ -23,8 +23,20 @@ test: elf
 lint:
 	golangci-lint run -E goimports,sqlclosecheck,bodyclose,asciicheck,misspell,errorlint --timeout 5m -e "errors.As" -e "errors.Is"
 
+fuzz:
+	go test -run NOTAREALTEST -v -fuzztime 10s -fuzz=FuzzStateSyscallBrk ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 10s -fuzz=FuzzStateSyscallClone ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 10s -fuzz=FuzzStateSyscallMmap ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 10s -fuzz=FuzzStateSyscallExitGroup ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 10s -fuzz=FuzzStateSyscallFnctl ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 10s -fuzz=FuzzStateHintRead ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 10s -fuzz=FuzzStateHintWrite ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 20s -fuzz=FuzzStatePreimageRead ./mipsevm
+	go test -run NOTAREALTEST -v -fuzztime 20s -fuzz=FuzzStatePreimageWrite ./mipsevm
+
 .PHONY: \
 	cannon \
 	clean \
 	test \
-	lint
+	lint \
+	fuzz