6.14-stable review patch. If anyone has any objections, please let me know.
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From: Sumanth Korikkar sumanthk@linux.ibm.com
commit 991a20173a1fbafd9fc0df0c7e17bb62d44a4deb upstream.
The kernel build may fail if the linker does not support -no-pie option, as it always included in LDFLAGS_vmlinux.
Error log: s390-linux-ld: unable to disambiguate: -no-pie (did you mean --no-pie ?)
Although the GNU linker defaults to -no-pie, the ability to explicitly specify this option was introduced in binutils 2.36.
Hence, fix it by adding -no-pie to LDFLAGS_vmlinux only when it is available.
Cc: stable@vger.kernel.org Fixes: 00cda11d3b2e ("s390: Compile kernel with -fPIC and link with -no-pie") Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202503220342.T3fElO9L-lkp@intel.com/ Suggested-by: Jens Remus jremus@linux.ibm.com Reviewed-by: Jens Remus jremus@linux.ibm.com Signed-off-by: Sumanth Korikkar sumanthk@linux.ibm.com Signed-off-by: Vasily Gorbik gor@linux.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/s390/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -15,7 +15,7 @@ KBUILD_CFLAGS_MODULE += -fPIC KBUILD_AFLAGS += -m64 KBUILD_CFLAGS += -m64 KBUILD_CFLAGS += -fPIC -LDFLAGS_vmlinux := -no-pie --emit-relocs --discard-none +LDFLAGS_vmlinux := $(call ld-option,-no-pie) --emit-relocs --discard-none extra_tools := relocs aflags_dwarf := -Wa,-gdwarf-2 KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__