From 82c1d6e3711e96a8ff1ae002d588f623528fccf0 Mon Sep 17 00:00:00 2001
From: Alexey Gerenkov <alexey@espressif.com>
Date: Wed, 22 Feb 2023 23:19:55 +0300
Subject: [PATCH] gcov: Do not link with libgcov when Clang is used

---
 components/app_trace/CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/components/app_trace/CMakeLists.txt b/components/app_trace/CMakeLists.txt
index 0968a31a82..2757ca224e 100644
--- a/components/app_trace/CMakeLists.txt
+++ b/components/app_trace/CMakeLists.txt
@@ -66,6 +66,12 @@ idf_component_register(SRCS "${srcs}"
 idf_component_get_property(app_trace app_trace COMPONENT_LIB)
 
 if(CONFIG_APPTRACE_GCOV_ENABLE)
+    if(CMAKE_C_COMPILER_ID MATCHES "Clang")
+        # Coverage info is not supported when clang is used
+        # TODO: LLVM-214
+        message(FATAL_ERROR "Coverage info is not supported when building with Clang!")
+    endif()
+
     # The original Gcov library from toolchain will be objcopy with symbols redefinitions (see file gcov/io_sym.map).
     # This needs because ESP has no file-system onboard, and redefined functions solves this problem and transmits
     # output file to host PC.