[x/programs] Set bulk memory support on debug mode (#599)

* bulk mem support

* bulk mem support auto enabled

* set on true only

* comment rephrase

* remove dangling doc line

---------

Co-authored-by: Sam Batschelet <sam.batschelet@avalabs.org>

x/programs/cmd/simulator/vm/actions/program_execute.go

@@ -86,8 +86,6 @@ func (t *ProgramExecute) Execute(
 	// TODO: get cfg from genesis
 	cfg, err := runtime.NewConfigBuilder().
 		WithDebugMode(true).
-		WithBulkMemory(true).
-		// only required for Wasi support exposed by testing only.
 		Build()
 	if err != nil {
 		return false, 1, utils.ErrBytes(err), nil, nil

x/programs/runtime/config.go

@@ -196,15 +196,21 @@ func (c *ConfigBuilder) WithDefaultCache(enabled bool) *ConfigBuilder {
 }
 
 // WithDebugMode enables debug mode which provides access to
-// useful debugging information. This should not be set for a live
-// system as it has both performance and security considerations.
+// useful debugging information. If [enabled] is true we set
+// EnableBulkMemory to support useful IO operations during debugging.
 //
-// Note: This requires Rust programs to be compiled with the  Wasm to be
-// compiled with the wasm32-wasi target.
+// This should not be set for a live system as it has
+// both performance and security considerations.
+//
+// Note: This requires Rust programs to be compiled with the wasm32-wasi target.
 //
 // Default is false.
 func (c *ConfigBuilder) WithDebugMode(enabled bool) *ConfigBuilder {
 	c.EnableDebugMode = enabled
+	if enabled {
+		c.EnableBulkMemory = true
+	}
+
 	return c
 }