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

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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@xxxxxxxxxxxxxxxxxxxx/
Link: https://lore.kernel.org/lkml/202008271102.FEB906C88@keescook/

Suggested-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Suggested-by: Kees Cook <keescook@xxxxxxxxxxxx>
Suggested-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
Signed-off-by: Ujjwal Kumar <ujjwalkumar0501@xxxxxxxxx>
---
 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




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