From fad4079778f46bc21dd19a674b31b4c3c7eb6a91 Mon Sep 17 00:00:00 2001
From: stijn
Date: Thu, 8 Oct 2020 16:52:25 +0200
Subject: esp32,unix: Support building C++ code.

Support building .cpp files and linking them into the micropython
executable in a way similar to how it is done for .c files.  The main
incentive here is to enable user C modules to use C++ files (which are put
in SRC_MOD_CXX by py.mk) since the core itself does not utilize C++.

However, to verify build functionality a unix overage test is added.  The
esp32 port already has CXXFLAGS so just add the user modules' flags to it.
For the unix port use a copy of the CFLAGS but strip the ones which are not
usable for C++.
---
 ports/unix/coveragecpp.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 ports/unix/coveragecpp.cpp

(limited to 'ports/unix/coveragecpp.cpp')

diff --git a/ports/unix/coveragecpp.cpp b/ports/unix/coveragecpp.cpp
new file mode 100644
index 000000000..ea7418e1d
--- /dev/null
+++ b/ports/unix/coveragecpp.cpp
@@ -0,0 +1,23 @@
+extern "C" {
+#include "py/obj.h"
+}
+
+#if defined(MICROPY_UNIX_COVERAGE)
+
+// Just to test building of C++ code.
+STATIC mp_obj_t extra_cpp_coverage_impl() {
+    return mp_const_none;
+}
+
+extern "C" {
+mp_obj_t extra_cpp_coverage(void);
+mp_obj_t extra_cpp_coverage(void) {
+    return extra_cpp_coverage_impl();
+}
+
+// This is extern to avoid name mangling.
+extern const mp_obj_fun_builtin_fixed_t extra_cpp_coverage_obj = {{&mp_type_fun_builtin_0}, {extra_cpp_coverage}};
+
+}
+
+#endif
-- 
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