Add auto stubs, static init

- Adds a python script to generate the tables, to avoid std::map init
- Generates stub "slots" to provide runtime information when a stub is called
- Provides fallback for unknown stubs

src/Core/PS4/Stubs.cpp

@@ -0,0 +1,71 @@
+#include "Stubs.h"
+
+#include "Util/aerolib.h"
+
+#include "Util/log.h"
+
+// Helper to provide stub implementations for missing functions
+// 
+// This works by pre-compiling generic stub functions ("slots"), and then
+// on lookup, setting up the nid_entry they are matched with
+// 
+// If it runs out of stubs with name information, it will return
+// a default implemetnation without function name details
+
+// Up to 512, larger values lead to more resolve stub slots
+// and to longer compile / CI times
+// 
+// Must match STUBS_LIST define
+#define MAX_STUBS 128
+
+u64 UnresolvedStub() {
+    LOG_ERROR("Unknown Stub: called, returning zero\n");
+    return 0;
+}
+
+static u64 UnknownStub() {
+    LOG_ERROR("Unknown Stub: called, returning zero\n");
+    return 0;
+}
+
+
+static aerolib::nid_entry* stub_nids[MAX_STUBS];
+
+template <int stub_index>
+static u64 CommonStub() {
+    auto entry = stub_nids[stub_index];
+
+    LOG_ERROR("Stub: {} ({}) called, returning zero\n", entry->name, entry->nid);
+    return 0;
+}
+
+static u32 UsedStubEntries;
+
+#define XREP_1(x)        \
+    &CommonStub<x>,
+
+#define XREP_2(x) XREP_1(x) XREP_1(x + 1)
+#define XREP_4(x) XREP_2(x) XREP_2(x + 2)
+#define XREP_8(x) XREP_4(x) XREP_4(x + 4)
+#define XREP_16(x) XREP_8(x) XREP_8(x + 8)
+#define XREP_32(x) XREP_16(x) XREP_16(x + 16)
+#define XREP_64(x) XREP_32(x) XREP_32(x + 32)
+#define XREP_128(x) XREP_64(x) XREP_64(x + 64)
+#define XREP_256(x) XREP_128(x) XREP_128(x + 128)
+#define XREP_512(x) XREP_256(x) XREP_256(x + 256)
+
+#define STUBS_LIST XREP_128(0)
+
+static u64 (*stub_handlers[MAX_STUBS])() = {
+    STUBS_LIST
+};
+
+u64 GetStub(const char* nid) {
+	auto entry = aerolib::find_by_nid(nid);
+    if (!entry || UsedStubEntries >= MAX_STUBS) {
+        return (u64)&UnknownStub;
+    } else {
+        stub_nids[UsedStubEntries] = entry;
+        return (u64)stub_handlers[UsedStubEntries++];
+    }
+}