LoongArch's toolchain may change the default code model from normal to medium. This is unnecessary for kernel, and generates some relocations which cannot be handled by the module loader. So explicitly specify the code model to normal in Makefile (for Rust 'normal' is 'small').
Cc: stable@vger.kernel.org Tested-by: Haiyong Sun sunhaiyong@loongson.cn Signed-off-by: Huacai Chen chenhuacai@loongson.cn --- We may use new toolchain to build 6.1/6.6 LTS, backport it to avoid problems.
arch/loongarch/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index a74bbcb05ee1..f2966745b058 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -55,7 +55,7 @@ endif
ifdef CONFIG_64BIT ld-emul = $(64bit-emul) -cflags-y += -mabi=lp64s +cflags-y += -mabi=lp64s -mcmodel=normal endif
cflags-y += -pipe -msoft-float
On Tue, May 13, 2025 at 04:06:45PM +0800, Huacai Chen wrote:
LoongArch's toolchain may change the default code model from normal to medium. This is unnecessary for kernel, and generates some relocations which cannot be handled by the module loader. So explicitly specify the code model to normal in Makefile (for Rust 'normal' is 'small').
Cc: stable@vger.kernel.org Tested-by: Haiyong Sun sunhaiyong@loongson.cn Signed-off-by: Huacai Chen chenhuacai@loongson.cn
We may use new toolchain to build 6.1/6.6 LTS, backport it to avoid problems.
What is the upstream git id for this commit?
[ Sasha's backport helper bot ]
Hi,
Summary of potential issues: ⚠️ Found matching upstream commit but patch is missing proper reference to it
Found matching upstream commit: e67e0eb6a98b261caf45048f9eb95fd7609289c0
Status in newer kernel trees: 6.14.y | Present (exact SHA1) 6.12.y | Present (different SHA1: 7b3a7918f10d) 6.6.y | Not found
Note: The patch differs from the upstream commit: --- 1: e67e0eb6a98b2 ! 1: fa2ca06c43c1a LoongArch: Explicitly specify code model in Makefile @@ arch/loongarch/Makefile: endif +cflags-y += -mabi=lp64s -mcmodel=normal endif
- cflags-y += -pipe $(CC_FLAGS_NO_FPU) -@@ arch/loongarch/Makefile: ifdef CONFIG_OBJTOOL - KBUILD_CFLAGS += -fno-jump-tables - endif - --KBUILD_RUSTFLAGS += --target=loongarch64-unknown-none-softfloat -+KBUILD_RUSTFLAGS += --target=loongarch64-unknown-none-softfloat -Ccode-model=small - KBUILD_RUSTFLAGS_KERNEL += -Zdirect-access-external-data=yes - KBUILD_RUSTFLAGS_MODULE += -Zdirect-access-external-data=no - + cflags-y += -pipe -msoft-float ---
Results of testing on various branches:
| Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | stable/linux-6.1.y | Success | Success | | stable/linux-6.6.y | Success | Success |
linux-stable-mirror@lists.linaro.org
-
Greg Kroah-Hartman -
Huacai Chen -
Sasha Levin