[PATCH v2 02/10] init: deduplicate cc-can-link.sh invocations
From: Thomas Weißschuh <hidden>
Date: 2025-10-14 13:05:53
Also in:
linux-kbuild, linux-mips, linux-riscv, linux-s390, lkml, sparclinux
Subsystem:
kconfig, the rest · Maintainers:
Nathan Chancellor, Nicolas Schier, Linus Torvalds
The command to invoke scripts/cc-can-link.sh is very long and new usages are about to be added. Add a helper variable to make the code easier to read and maintain. Signed-off-by: Thomas Weißschuh <redacted> --- init/Kconfig | 4 ++-- scripts/Kconfig.include | 3 +++ 2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/init/Kconfig b/init/Kconfig
index cab3ad28ca49e7ac930207c9cde8d431d55dc7af..7b722e714d5c5a0580467914b226dc0700ec0797 100644
--- a/init/Kconfig
+++ b/init/Kconfig@@ -84,8 +84,8 @@ config RUSTC_LLVM_VERSION config CC_CAN_LINK bool - default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m64-flag)) if 64BIT - default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(m32-flag)) + default $(cc_can_link_user,$(m64-flag)) if 64BIT + default $(cc_can_link_user,$(m32-flag)) # Fixed in GCC 14, 13.3, 12.4 and 11.5 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 33193ca6e8030e659d6b321acaea1acd42c387a4..d42042b6c9e243b46d1626d892c0c986621ce462 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include@@ -65,6 +65,9 @@ cc-option-bit = $(if-success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null,$ m32-flag := $(cc-option-bit,-m32) m64-flag := $(cc-option-bit,-m64) +# Test whether the compiler can link userspace applications +cc_can_link_user = $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAGS) $(1)) + rustc-version := $(shell,$(srctree)/scripts/rustc-version.sh $(RUSTC)) rustc-llvm-version := $(shell,$(srctree)/scripts/rustc-llvm-version.sh $(RUSTC))
--
2.51.0