common: dump backtrace on signals

[apitrace] / common / trace_model.hpp

diff --git a/common/trace_model.hpp b/common/trace_model.hpp
index d04fe5eb4086ae3d4166426d6d030cc678a1e166..ba7c845362e55fdc5aae14fe42a4597fada84e49 100644 (file)
--- a/common/trace_model.hpp
+++ b/common/trace_model.hpp
@@ -36,11 +36,16 @@
 
 #include <map>
 #include <vector>
+#include <ostream>
 
 
 namespace trace {
 
 
+// Should match Call::no
+typedef unsigned CallNo;
+
+
 typedef unsigned Id;
 
 
@@ -87,6 +92,9 @@ struct BitmaskSig {
 
 
 class Visitor;
+class Null;
+class Struct;
+class Array;
 
 
 class Value
@@ -106,6 +114,15 @@ public:
     virtual unsigned long long toUIntPtr(void) const;
     virtual const char *toString(void) const;
 
+    virtual const Null *toNull(void) const { return NULL; }
+    virtual Null *toNull(void) { return NULL; }
+
+    virtual const Array *toArray(void) const { return NULL; }
+    virtual Array *toArray(void) { return NULL; }
+
+    virtual const Struct *toStruct(void) const { return NULL; }
+    virtual Struct *toStruct(void) { return NULL; }
+
     const Value & operator[](size_t index) const;
 };
 
@@ -123,6 +140,9 @@ public:
     unsigned long long toUIntPtr(void) const;
     const char *toString(void) const;
     void visit(Visitor &visitor);
+
+    const Null *toNull(void) const { return this; }
+    Null *toNull(void) { return this; }
 };
 
 
@@ -262,6 +282,9 @@ public:
     bool toBool(void) const;
     void visit(Visitor &visitor);
 
+    const Struct *toStruct(void) const { return this; }
+    Struct *toStruct(void) { return this; }
+
     const StructSig *sig;
     std::vector<Value *> members;
 };
@@ -276,6 +299,9 @@ public:
     bool toBool(void) const;
     void visit(Visitor &visitor);
 
+    const Array *toArray(void) const { return this; }
+    Array *toArray(void) { return this; }
+
     std::vector<Value *> values;
 
     inline size_t
@@ -363,6 +389,22 @@ struct RawStackFrame {
         offset(-1)
     {
     }
+
+    void dump(std::ostream &os) {
+        os << (this->module ? this->module : "?");
+        if (this->function != NULL) {
+            os << ": " << this->function;
+        }
+        if (this->offset >= 0) {
+            os << "+0x" << std::hex << this->offset << std::dec;
+        }
+        if (this->filename != NULL) {
+            os << ": " << this->filename;
+            if (this->linenumber >= 0) {
+                os << ":" << this->linenumber;
+            }
+        }
+    }
 };
 
 class StackFrame : public RawStackFrame {