kram-profile - add in CBA support

The profiler just collects loaded files (as NSData) and then sends them to CBA to generate the report.  Note the code runs json parsing on all the files, and demangle OptFunction again, and then prints the results to the console via fprintf.   Will tie to some UI or report.

kram-profile/CBA/Analysis.h

@@ -0,0 +1,8 @@
+// Clang Build Analyzer https://github.com/aras-p/ClangBuildAnalyzer
+// SPDX-License-Identifier: Unlicense
+#pragma once
+
+#include "BuildEvents.h"
+#include <stdio.h>
+
+void DoAnalysis(const BuildEvents& events, BuildNames& names, FILE* out);

kram-profile/CBA/Arena.cpp

@@ -0,0 +1,49 @@
+// Clang Build Analyzer https://github.com/aras-p/ClangBuildAnalyzer
+// SPDX-License-Identifier: Unlicense
+
+#include <cstdint>
+#include <algorithm>
+#include <vector>
+
+struct ArenaBlock
+{
+    uint8_t* buffer;
+    size_t bufferSize;
+    size_t used;
+};
+
+static std::vector<ArenaBlock> s_Blocks;
+
+const size_t kDefaultBlockSize = 65536;
+
+
+void ArenaInitialize()
+{
+}
+
+void ArenaDelete()
+{
+    for (auto& b : s_Blocks)
+        delete[] b.buffer;
+    s_Blocks.clear();
+}
+
+void* ArenaAllocate(size_t size)
+{
+    // do we need a new block?
+    if (s_Blocks.empty() || s_Blocks.back().used + size > s_Blocks.back().bufferSize)
+    {
+        ArenaBlock block;
+        block.bufferSize = std::max(size, kDefaultBlockSize);
+        block.buffer = new uint8_t[block.bufferSize];
+        block.used = 0;
+        s_Blocks.emplace_back(block);
+    }
+
+    // allocate from the last block
+    ArenaBlock& b = s_Blocks.back();
+    void* ptr = b.buffer + b.used;
+    b.used += size;
+    return ptr;
+}
+

kram-profile/CBA/Arena.h

@@ -0,0 +1,7 @@
+// Clang Build Analyzer https://github.com/aras-p/ClangBuildAnalyzer
+// SPDX-License-Identifier: Unlicense
+#pragma once
+
+void ArenaInitialize();
+void ArenaDelete();
+void* ArenaAllocate(size_t size);