s390: Fix linker error when -no-pie option is unavailable

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>

diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 5fae311203c269f5e0062d267955e1cff4cc6f87..fd3b70d9aab157486bed3d4a99d02cf8d8ac6910 100644 (file)
--- 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__