From a82bd1756498606ea5235d77a14a95b3a3c23808 Mon Sep 17 00:00:00 2001
From: "Luke T. Shumaker" <lukeshu@lukeshu.com>
Date: Fri, 29 Nov 2024 21:20:42 -0700
Subject: tusb_config.h: Have TU_ASSERT use libmisc logging

---
 cmd/sbc_harness/config/tusb_config.h | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'cmd/sbc_harness/config/tusb_config.h')

diff --git a/cmd/sbc_harness/config/tusb_config.h b/cmd/sbc_harness/config/tusb_config.h
index a27c841..0a6d3e4 100644
--- a/cmd/sbc_harness/config/tusb_config.h
+++ b/cmd/sbc_harness/config/tusb_config.h
@@ -35,6 +35,37 @@
 extern "C" {
 #endif
 
+//--------------------------------------------------------------------
+// Override the default definition of TU_ASSERT() to use our logging
+//--------------------------------------------------------------------
+
+// "magically" select between the 1-arg and 2-args variants, inject a
+// stringified version of `_cond`.
+//
+// Note: Use GNU-C `, ##__VA_ARGS__`, not standard C `__VA_OPT__(,)
+// __VA_ARGS__`; because __VA_OPT__ doesn't handle present-but-empty
+// arguments the way that we need.
+#define TU_ASSERT(_cond, ...) \
+	_GET_3RD_ARG(_cond, ##__VA_ARGS__, \
+	             _LIBMISC_TU_ASSERT_2ARGS, _LIBMISC_TU_ASSERT_1ARGS, _dummy) \
+		(_cond, #_cond, ##__VA_ARGS__)
+
+#define _LIBMISC_TU_ASSERT_1ARGS(_cond, _cond_str) \
+	_LIBMISC_TU_ASSERT_2ARGS(_cond, _cond_str, false)
+
+#define _LIBMISC_TU_ASSERT_2ARGS(_cond, _cond_str, _ret)           \
+  do {                                                             \
+    if ( !(_cond) ) {                                              \
+            _libmisc_tu_mess_failed(_cond_str,                     \
+                                    __FILE__, __LINE__, __func__); \
+            TU_BREAKPOINT();                                       \
+            return _ret;                                           \
+    }                                                              \
+  } while(0)
+
+void _libmisc_tu_mess_failed(const char *expr,
+                             const char *file, unsigned int line, const char *func);
+
 //--------------------------------------------------------------------
 // Configuration: common
 //--------------------------------------------------------------------
-- 
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