From 1fee4849bc5e901c1dc3524fddef765d44988179 Mon Sep 17 00:00:00 2001
From: Jeremy Bettis <jbettis@chromium.org>
Date: Fri, 27 Aug 2021 16:57:15 -0600
Subject: [PATCH] cmake: Populate var CMAKE_GCOV

For each compiler, also set a CMAKE_GCOV var referencing the appropriate
gcov tool.

Tested with gcc and host-gcc on the ChromeOS codebase.

Signed-off-by: Jeremy Bettis <jbettis@chromium.org>
---
 cmake/compiler/arcmwdt/generic.cmake  | 2 ++
 cmake/compiler/clang/generic.cmake    | 2 ++
 cmake/compiler/gcc/generic.cmake      | 1 +
 cmake/compiler/host-gcc/generic.cmake | 1 +
 cmake/compiler/xcc/generic.cmake      | 1 +
 5 files changed, 7 insertions(+)

diff --git a/cmake/compiler/arcmwdt/generic.cmake b/cmake/compiler/arcmwdt/generic.cmake
index ceda135f257..d062c962684 100644
--- a/cmake/compiler/arcmwdt/generic.cmake
+++ b/cmake/compiler/arcmwdt/generic.cmake
@@ -19,6 +19,8 @@ if(NOT CMAKE_DTS_PREPROCESSOR)
 endif()
 
 find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}ccac PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
+find_program(CMAKE_LLVM_COV ${CROSS_COMPILE}llvm-cov PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
+set(CMAKE_GCOV "${CMAKE_LLVM_COV} gcov")
 
 if(CMAKE_C_COMPILER STREQUAL CMAKE_C_COMPILER-NOTFOUND)
   message(FATAL_ERROR "Zephyr was unable to find the Metaware compiler")
diff --git a/cmake/compiler/clang/generic.cmake b/cmake/compiler/clang/generic.cmake
index 7033a958122..869a788e244 100644
--- a/cmake/compiler/clang/generic.cmake
+++ b/cmake/compiler/clang/generic.cmake
@@ -5,4 +5,6 @@ if(DEFINED TOOLCHAIN_HOME)
 endif()
 
 find_program(CMAKE_C_COMPILER clang ${find_program_clang_args})
+find_program(CMAKE_LLVM_COV llvm-cov ${find_program_clang_args})
+set(CMAKE_GCOV "${CMAKE_LLVM_COV} gcov")
 
diff --git a/cmake/compiler/gcc/generic.cmake b/cmake/compiler/gcc/generic.cmake
index 57b32f633b0..ca96eb93809 100644
--- a/cmake/compiler/gcc/generic.cmake
+++ b/cmake/compiler/gcc/generic.cmake
@@ -3,6 +3,7 @@
 set_ifndef(CC gcc)
 
 find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}${CC}   PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
+find_program(CMAKE_GCOV ${CROSS_COMPILE}gcov   PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
 
 if(CMAKE_C_COMPILER STREQUAL CMAKE_C_COMPILER-NOTFOUND)
   message(FATAL_ERROR "Zephyr was unable to find the toolchain. Is the environment misconfigured?
diff --git a/cmake/compiler/host-gcc/generic.cmake b/cmake/compiler/host-gcc/generic.cmake
index 3f889564ca9..e7fbf17c730 100644
--- a/cmake/compiler/host-gcc/generic.cmake
+++ b/cmake/compiler/host-gcc/generic.cmake
@@ -3,3 +3,4 @@
 # Configures CMake for using GCC
 
 find_program(CMAKE_C_COMPILER gcc)
+find_program(CMAKE_GCOV gcov)
diff --git a/cmake/compiler/xcc/generic.cmake b/cmake/compiler/xcc/generic.cmake
index 57b32f633b0..ca96eb93809 100644
--- a/cmake/compiler/xcc/generic.cmake
+++ b/cmake/compiler/xcc/generic.cmake
@@ -3,6 +3,7 @@
 set_ifndef(CC gcc)
 
 find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}${CC}   PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
+find_program(CMAKE_GCOV ${CROSS_COMPILE}gcov   PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
 
 if(CMAKE_C_COMPILER STREQUAL CMAKE_C_COMPILER-NOTFOUND)
   message(FATAL_ERROR "Zephyr was unable to find the toolchain. Is the environment misconfigured?