diff --git a/apps/serdes/Deserializer.cpp b/apps/serdes/Deserializer.cpp
index 075215516e0c..b297f038d7f8 100644
--- a/apps/serdes/Deserializer.cpp
+++ b/apps/serdes/Deserializer.cpp
@@ -144,6 +144,20 @@ Halide::PrefetchBoundStrategy Deserializer::deserialize_prefetch_bound_strategy(
     }
 }
 
+Halide::NameMangling Deserializer::deserialize_name_mangling(const Halide::Serialize::NameMangling name_mangling) {
+    switch (name_mangling) {
+    case Halide::Serialize::NameMangling::NameMangling_Default:
+        return Halide::NameMangling::Default;
+    case Halide::Serialize::NameMangling::NameMangling_C:
+        return Halide::NameMangling::C;
+    case Halide::Serialize::NameMangling::NameMangling_CPlusPlus:
+        return Halide::NameMangling::CPlusPlus;
+    default:
+        std::cerr << "unknown name mangling " << name_mangling << "\n";
+        exit(1);
+    }
+}
+
 Halide::Type Deserializer::deserialize_type(const Halide::Serialize::Type *type) {
     using Halide::Serialize::TypeCode;
     int bits = type->bits();
@@ -200,8 +214,24 @@ Halide::Internal::Function Deserializer::deserialize_function(const Halide::Seri
         updates.push_back(deserialize_definition(update));
     }
 
+    std::string debug_file = deserialize_string(function->debug_file());
+    std::string extern_function_name = deserialize_string(function->extern_function_name());
+    auto name_mangling = deserialize_name_mangling(function->extern_mangling());
+    auto extern_function_device_api = deserialize_device_api(function->extern_function_device_api());
+    auto extern_proxy_expr = deserialize_expr(function->extern_proxy_expr_type(), function->extern_proxy_expr());
+    bool trace_loads = function->trace_loads(), trace_stores = function->trace_stores(), trace_realizations = function->trace_realizations();
+    std::vector<std::string> trace_tags;
+    trace_tags.reserve(function->trace_tags()->size());
+    for (const auto &tag : *function->trace_tags()) {
+        trace_tags.push_back(deserialize_string(tag));
+    }
+    bool frozen = function->frozen();
+
     return Halide::Internal::Function(name, origin_name, output_types, required_types,
-                                      required_dim, args, func_schedule, init_def, updates);
+                                      required_dim, args, func_schedule, init_def, updates,
+                                      debug_file, extern_function_name, name_mangling,
+                                      extern_function_device_api, extern_proxy_expr,
+                                      trace_loads, trace_stores, trace_realizations, trace_tags, frozen);
 }
 
 Halide::Internal::Stmt Deserializer::deserialize_stmt(uint8_t type_code, const void *stmt) {
diff --git a/apps/serdes/Deserializer.h b/apps/serdes/Deserializer.h
index 27c0a9ce28f5..2d37d7ba15c7 100644
--- a/apps/serdes/Deserializer.h
+++ b/apps/serdes/Deserializer.h
@@ -30,6 +30,8 @@ class Deserializer {
 
     Halide::PrefetchBoundStrategy deserialize_prefetch_bound_strategy(const Halide::Serialize::PrefetchBoundStrategy prefetch_bound_strategy);
 
+    Halide::NameMangling deserialize_name_mangling(const Halide::Serialize::NameMangling name_mangling);
+
     std::string deserialize_string(const flatbuffers::String *str);
 
     Halide::Type deserialize_type(const Halide::Serialize::Type *type);
diff --git a/apps/serdes/Serializer.cpp b/apps/serdes/Serializer.cpp
index ccccdc5c7e4e..d501233f2c58 100644
--- a/apps/serdes/Serializer.cpp
+++ b/apps/serdes/Serializer.cpp
@@ -143,6 +143,20 @@ Halide::Serialize::PrefetchBoundStrategy Serializer::serialize_prefetch_bound_st
     }
 }
 
+Halide::Serialize::NameMangling Serializer::serialize_name_mangling(const Halide::NameMangling &name_mangling) {
+    switch (name_mangling) {
+    case Halide::NameMangling::Default:
+        return Halide::Serialize::NameMangling::NameMangling_Default;
+    case Halide::NameMangling::C:
+        return Halide::Serialize::NameMangling::NameMangling_C;
+    case Halide::NameMangling::CPlusPlus:
+        return Halide::Serialize::NameMangling::NameMangling_CPlusPlus;
+    default:
+        std::cerr << "Unsupported name mangling\n";
+        exit(1);
+    }
+}
+
 flatbuffers::Offset<flatbuffers::String> Serializer::serialize_string(flatbuffers::FlatBufferBuilder &builder, const std::string &str) {
     return builder.CreateString(str);
 }
@@ -591,7 +605,25 @@ flatbuffers::Offset<Halide::Serialize::Func> Serializer::serialize_function(flat
     for (const auto &update : function.updates()) {
         updates_serialized.push_back(serialize_definition(builder, update));
     }
-    auto func = Halide::Serialize::CreateFunc(builder, name_serialized, origin_name_serialized, output_types_vector, required_types_vector, required_dim, args_vector, func_schedule_serialized, init_def_serialized, builder.CreateVector(updates_serialized));
+
+    auto debug_file_serialized = serialize_string(builder, function.debug_file());
+    auto extern_function_name_serialized = serialize_string(builder, function.extern_function_name());
+    auto extern_mangling_serialized = serialize_name_mangling(function.extern_definition_name_mangling());
+    auto extern_function_device_api_serialized = serialize_device_api(function.extern_function_device_api());
+    auto extern_proxy_expr_serialized = serialize_expr(builder, function.extern_definition_proxy_expr());
+    bool trace_loads = function.is_tracing_loads();
+    bool trace_stores = function.is_tracing_stores();
+    bool trace_realizations = function.is_tracing_realizations();
+    std::vector<flatbuffers::Offset<flatbuffers::String>> trace_tags_serialized;
+    trace_tags_serialized.reserve(function.get_trace_tags().size());
+    for (const auto& tag: function.get_trace_tags()) {
+        trace_tags_serialized.push_back(serialize_string(builder, tag));
+    }
+    bool frozen = function.frozen();
+    auto func = Halide::Serialize::CreateFunc(builder, name_serialized, origin_name_serialized, output_types_vector, required_types_vector, required_dim, 
+                                              args_vector, func_schedule_serialized, init_def_serialized, builder.CreateVector(updates_serialized), debug_file_serialized,
+                                              extern_function_name_serialized, extern_mangling_serialized, extern_function_device_api_serialized, extern_proxy_expr_serialized.first,
+                                              extern_proxy_expr_serialized.second, trace_loads, trace_stores, trace_realizations, builder.CreateVector(trace_tags_serialized), frozen);
     return func;
 }
 
diff --git a/apps/serdes/Serializer.h b/apps/serdes/Serializer.h
index 290075a05515..496b895f6120 100644
--- a/apps/serdes/Serializer.h
+++ b/apps/serdes/Serializer.h
@@ -31,6 +31,8 @@ class Serializer {
 
     Halide::Serialize::PrefetchBoundStrategy serialize_prefetch_bound_strategy(const Halide::PrefetchBoundStrategy &prefetch_bound_strategy);
 
+    Halide::Serialize::NameMangling serialize_name_mangling(const Halide::NameMangling &name_mangling);
+
     flatbuffers::Offset<flatbuffers::String> serialize_string(flatbuffers::FlatBufferBuilder &builder, const std::string &str);
 
     flatbuffers::Offset<Halide::Serialize::Type> serialize_type(flatbuffers::FlatBufferBuilder &builder, const Halide::Type &type);
diff --git a/apps/serdes/halide_ir.fbs b/apps/serdes/halide_ir.fbs
index 0d2836ab369d..4b298a4bd566 100644
--- a/apps/serdes/halide_ir.fbs
+++ b/apps/serdes/halide_ir.fbs
@@ -513,6 +513,12 @@ table FuncMapping {
     index: int32;
 }
 
+enum NameMangling: ubyte {
+    Default,
+    C,
+    CPlusPlus,
+}
+
 // Halide::internal::Function
 table Func {
     name: string;
@@ -524,13 +530,18 @@ table Func {
     func_schedule: FuncSchedule;
     init_def: Definition;
     updates: [Definition];
-    // debug_file: string;
+    debug_file: string;
     // output_buffers: [Parameter];
     // extern_arguments: [ExternFuncArgument];
-    // extern_function_name: string;
-    // extern_mangling: NameMangling;
-    // extern_device_api: DeviceAPI;
-    // extern_proxy_expr: Expr;
+    extern_function_name: string;
+    extern_mangling: NameMangling;
+    extern_function_device_api: DeviceAPI;
+    extern_proxy_expr: Expr;
+    trace_loads: bool = false;
+    trace_stores: bool = false;
+    trace_realizations: bool = false;
+    trace_tags: [string];
+    frozen: bool = false;
 }
 
 table Pipeline {
diff --git a/src/Function.cpp b/src/Function.cpp
index 5d4eecc76130..15dbb8fa2ce6 100644
--- a/src/Function.cpp
+++ b/src/Function.cpp
@@ -332,8 +332,11 @@ Function::Function(const std::vector<Type> &required_types, int required_dims, c
 }
 
 Function::Function(const std::string &name, const std::string &origin_name, const std::vector<Halide::Type> &output_types,
-                   const std::vector<Halide::Type> &required_types, int required_dims, const std::vector<std::string> &args,
-                   const FuncSchedule &func_schedule, const Definition &init_def, const std::vector<Definition> &updates) {
+                      const std::vector<Halide::Type> &required_types, int required_dims, const std::vector<std::string> &args,
+                      const FuncSchedule &func_schedule, const Definition &init_def, const std::vector<Definition> &updates,
+                      const std::string &debug_file, const std::string &extern_function_name, const NameMangling name_mangling,
+                      const DeviceAPI device_api, const Expr &extern_proxy_expr, bool trace_loads, bool trace_stores, bool trace_realizations,
+                      const std::vector<std::string> &trace_tags, bool frozen) {
     contents.strong = new FunctionGroup;
     contents.strong->members.resize(1);
     contents->name = name;
@@ -345,6 +348,16 @@ Function::Function(const std::string &name, const std::string &origin_name, cons
     contents->func_schedule = func_schedule;
     contents->init_def = init_def;
     contents->updates = updates;
+    contents->debug_file = debug_file;
+    contents->extern_function_name = extern_function_name;
+    contents->extern_mangling = name_mangling;
+    contents->extern_function_device_api = device_api;
+    contents->extern_proxy_expr = extern_proxy_expr;
+    contents->trace_loads = trace_loads;
+    contents->trace_stores = trace_stores;
+    contents->trace_realizations = trace_realizations;
+    contents->trace_tags = trace_tags;
+    contents->frozen = frozen;
 }
 
 namespace {
diff --git a/src/Function.h b/src/Function.h
index 11e249e90d2c..b016fea0249d 100644
--- a/src/Function.h
+++ b/src/Function.h
@@ -71,7 +71,10 @@ class Function {
     /** Construct a function from deserializing */
     explicit Function(const std::string &name, const std::string &origin_name, const std::vector<Halide::Type> &output_types,
                       const std::vector<Halide::Type> &required_types, int required_dims, const std::vector<std::string> &args,
-                      const FuncSchedule &func_schedule, const Definition &init_def, const std::vector<Definition> &updates);
+                      const FuncSchedule &func_schedule, const Definition &init_def, const std::vector<Definition> &updates,
+                      const std::string &debug_file, const std::string &extern_function_name, const NameMangling name_mangling,
+                      const DeviceAPI device_api, const Expr &extern_proxy_expr, bool trace_loads, bool trace_stores, bool trace_realizations,
+                      const std::vector<std::string> &trace_tags, bool frozen);
 
     /** Get a handle on the halide function contents that this Function
      * represents. */