diff --git a/pkg/apis/softwarecomposition/types.go b/pkg/apis/softwarecomposition/types.go
index 8003b526c..ddc61af2b 100644
--- a/pkg/apis/softwarecomposition/types.go
+++ b/pkg/apis/softwarecomposition/types.go
@@ -244,9 +244,10 @@ type RulePolicy struct {
 }
 
 type ExecCalls struct {
-	Path string
-	Args []string
-	Envs []string
+	Path        string
+	Args        []string
+	Envs        []string
+	ProcessTree StackTrace
 }
 
 const sep = "␟"
@@ -267,8 +268,9 @@ func (e ExecCalls) String() string {
 }
 
 type OpenCalls struct {
-	Path  string
-	Flags []string
+	Path        string
+	Flags       []string
+	ProcessTree StackTrace
 }
 
 func (e OpenCalls) String() string {
@@ -282,6 +284,20 @@ func (e OpenCalls) String() string {
 	return s.String()
 }
 
+type StackTrace struct {
+	Root  FileName
+	Nodes map[FileName]StackFrame
+}
+
+type StackFrame struct {
+	File     FileName
+	Address  uint64
+	Children []FileName
+	Parents  []FileName
+}
+
+type FileName string
+
 type ApplicationProfileStatus struct {
 }
 
diff --git a/pkg/apis/softwarecomposition/v1beta1/types.go b/pkg/apis/softwarecomposition/v1beta1/types.go
index 4b5b22336..25b6a75af 100644
--- a/pkg/apis/softwarecomposition/v1beta1/types.go
+++ b/pkg/apis/softwarecomposition/v1beta1/types.go
@@ -225,16 +225,32 @@ type ApplicationProfileContainer struct {
 }
 
 type ExecCalls struct {
-	Path string   `json:"path,omitempty" protobuf:"bytes,1,opt,name=path"`
-	Args []string `json:"args,omitempty" protobuf:"bytes,2,opt,name=args"`
-	Envs []string `json:"envs,omitempty" protobuf:"bytes,3,opt,name=envs"`
+	Path        string     `json:"path,omitempty" protobuf:"bytes,1,opt,name=path"`
+	Args        []string   `json:"args,omitempty" protobuf:"bytes,2,opt,name=args"`
+	Envs        []string   `json:"envs,omitempty" protobuf:"bytes,3,opt,name=envs"`
+	ProcessTree StackTrace `json:"processTree,omitempty" protobuf:"bytes,4,opt,name=processTree"`
 }
 
 type OpenCalls struct {
-	Path  string   `json:"path" yaml:"path" protobuf:"bytes,1,req,name=path"`
-	Flags []string `json:"flags" yaml:"flags" protobuf:"bytes,2,rep,name=flags"`
+	Path        string     `json:"path" yaml:"path" protobuf:"bytes,1,req,name=path"`
+	Flags       []string   `json:"flags" yaml:"flags" protobuf:"bytes,2,rep,name=flags"`
+	ProcessTree StackTrace `json:"processTree,omitempty" protobuf:"bytes,4,opt,name=processTree"`
 }
 
+type StackTrace struct {
+	Root  FileName                `json:"root" protobuf:"bytes,1,opt,name=root"`
+	Nodes map[FileName]StackFrame `json:"nodes" protobuf:"bytes,2,rep,name=nodes"`
+}
+
+type StackFrame struct {
+	File     FileName   `json:"file" protobuf:"bytes,1,opt,name=file"`
+	Address  uint64     `json:"address" protobuf:"bytes,2,opt,name=address"`
+	Children []FileName `json:"children" protobuf:"bytes,3,rep,name=children"`
+	Parents  []FileName `json:"parents" protobuf:"bytes,4,rep,name=parents"`
+}
+
+type FileName string
+
 type ApplicationProfileStatus struct {
 }