feat: add lab-rv32i-freertos-kernel-facade card

src/common/cpp_heap.cpp

@@ -0,0 +1,84 @@
+#include <stddef.h>
+#include <stdint.h>
+
+extern "C"
+{
+#include "FreeRTOS.h"
+}
+
+extern "C"
+{
+volatile size_t g_cpp_allocation_count;
+volatile size_t g_cpp_deallocation_count;
+volatile size_t g_cpp_live_allocations;
+volatile uintptr_t g_cpp_allocation_addresses[ 4 ];
+volatile uintptr_t g_cpp_deallocation_addresses[ 4 ];
+}
+
+namespace
+{
+
+void * allocate_or_fail( size_t bytes )
+{
+    void * const memory = pvPortMalloc( bytes == 0U ? 1U : bytes );
+    configASSERT( memory != nullptr );
+
+    if( g_cpp_allocation_count < 4U )
+    {
+        g_cpp_allocation_addresses[ g_cpp_allocation_count ] =
+            reinterpret_cast< uintptr_t >( memory );
+    }
+    ++g_cpp_allocation_count;
+    ++g_cpp_live_allocations;
+    return memory;
+}
+
+void release( void * memory ) noexcept
+{
+    if( memory == nullptr )
+    {
+        return;
+    }
+
+    if( g_cpp_deallocation_count < 4U )
+    {
+        g_cpp_deallocation_addresses[ g_cpp_deallocation_count ] =
+            reinterpret_cast< uintptr_t >( memory );
+    }
+    ++g_cpp_deallocation_count;
+    --g_cpp_live_allocations;
+    vPortFree( memory );
+}
+
+} // namespace
+
+void * operator new( size_t bytes )
+{
+    return allocate_or_fail( bytes );
+}
+
+void * operator new[]( size_t bytes )
+{
+    return allocate_or_fail( bytes );
+}
+
+void operator delete( void * memory ) noexcept
+{
+    release( memory );
+}
+
+void operator delete[]( void * memory ) noexcept
+{
+    release( memory );
+}
+
+void operator delete( void * memory, size_t ) noexcept
+{
+    release( memory );
+}
+
+void operator delete[]( void * memory, size_t ) noexcept
+{
+    release( memory );
+}
+