linux-kernel - [PATCH 4/4] gcov: clang: pick GCC vs Clang format depending on compiler

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Message-Id: <20190114210426.177543-5-trong@android.com>
Date:   Mon, 14 Jan 2019 13:04:26 -0800
From:   Tri Vo <trong@...roid.com>
To:     oberpar@...ux.ibm.com
Cc:     ghackmann@...roid.com, ndesaulniers@...gle.com,
        linux-kernel@...r.kernel.org, kernel-team@...roid.com,
        Tri Vo <trong@...roid.com>
Subject: [PATCH 4/4] gcov: clang: pick GCC vs Clang format depending on compiler

Clang gcov format is only supported by Clang compiler, and Clang
compiler only supports Clang format.

We set gcov format to depend on which compiler (GCC or Clang) is used.

Automatic format detection behavior is preserved because:
If GCC is used, one of the GCC gcov formats is selected.
If Clang is used, Clang gcov format is selected.

Signed-off-by: Tri Vo <trong@...roid.com>
---
 kernel/gcov/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
index eb428e570923..37ec551d4039 100644
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -60,6 +60,8 @@ choice
 	In such a case, change this option to adjust the format used in the
 	kernel accordingly.
 
+	Select Clang gcov format if building with Clang compiler.
+
 config GCOV_FORMAT_3_4
 	bool "GCC 3.4 format"
 	depends on CC_IS_GCC && GCC_VERSION < 40700
@@ -68,11 +70,13 @@ config GCOV_FORMAT_3_4
 
 config GCOV_FORMAT_4_7
 	bool "GCC 4.7 format"
+	depends on CC_IS_GCC
 	---help---
 	Select this option to use the format defined by GCC 4.7.
 
 config GCOV_FORMAT_CLANG
 	bool "Clang format"
+	depends on CC_IS_CLANG
 	---help---
 	Select this option to use the format defined by Clang.
 
-- 
2.20.1.97.g81188d93c3-goog