linux-kernel - [PATCH v2 1/2] kconfig: use interpreters to invoke scripts

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Date:   Mon, 12 Oct 2020 22:36:30 +0530
From:   Ujjwal Kumar <ujjwalkumar0501@...il.com>
To:     Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>
Cc:     Ujjwal Kumar <ujjwalkumar0501@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Kees Cook <keescook@...omium.org>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-ia64@...r.kernel.org,
        clang-built-linux@...glegroups.com,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: [PATCH v2 1/2] kconfig: use interpreters to invoke scripts

We cannot rely on execute bits to be set on files in the repository.
The build script should use the explicit interpreter when invoking any
script from the repository.

Link: https://lore.kernel.org/lkml/20200830174409.c24c3f67addcce0cea9a9d4c@linux-foundation.org/
Link: https://lore.kernel.org/lkml/202008271102.FEB906C88@keescook/

Suggested-by: Andrew Morton <akpm@...ux-foundation.org>
Suggested-by: Kees Cook <keescook@...omium.org>
Suggested-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
Signed-off-by: Ujjwal Kumar <ujjwalkumar0501@...il.com>
---
 init/Kconfig | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index c9446911cf41..8adf3194d26f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -30,12 +30,12 @@ config CC_IS_GCC

 config GCC_VERSION
 	int
-	default $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC
+	default $(shell,$(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC)) if CC_IS_GCC
 	default 0

 config LD_VERSION
 	int
-	default $(shell,$(LD) --version | $(srctree)/scripts/ld-version.sh)
+	default $(shell,$(LD) --version | $(AWK) -f $(srctree)/scripts/ld-version.sh)

 config CC_IS_CLANG
 	def_bool $(success,echo "$(CC_VERSION_TEXT)" | grep -q clang)
@@ -45,20 +45,20 @@ config LD_IS_LLD

 config CLANG_VERSION
 	int
-	default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+	default $(shell,$(CONFIG_SHELL) $(srctree)/scripts/clang-version.sh $(CC))

 config CC_CAN_LINK
 	bool
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag))
+	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag)) if 64BIT
+	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag))

 config CC_CAN_LINK_STATIC
 	bool
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag) -static) if 64BIT
-	default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag) -static)
+	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m64-flag) -static) if 64BIT
+	default $(success,$(CONFIG_SHELL) $(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(m32-flag) -static)

 config CC_HAS_ASM_GOTO
-	def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
+	def_bool $(success,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC))

 config CC_HAS_ASM_GOTO_OUTPUT
 	depends on CC_HAS_ASM_GOTO
--
2.25.1