2018-04-20 2:38 GMT+08:00 Guenter Roeck <[email protected]>: > On Thu, Apr 19, 2018 at 09:18:15PM +0800, Greentime Hu wrote: >> This way we can build kernel with CONFIG_CPU_LITTLE_ENDIAN=y and allmodconfig >> will be available. >> >> Signed-off-by: Greentime Hu <[email protected]> > > As Arnd suspected, this causes allnoconfig to fail. > The failure is due to endianness mismatches in vdso code. > > Not sure if that is really an improvement. >
Thank you for reviewing. The reason of this issue is because some objects are compiled with -EL and some objects are compiled with -EB to cause endianness mismatch issue. It happened because AFLAGS and LDFLAGS is not passed correctly. I will send the 2nd verson patch to fix this issue. Yes, allnoconfig is fine after applying these fixes. diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile index 20edf34e70ce..513bb2e9baf9 100644 --- a/arch/nds32/Makefile +++ b/arch/nds32/Makefile @@ -32,8 +32,12 @@ endif ifdef CONFIG_CPU_LITTLE_ENDIAN KBUILD_CFLAGS += $(call cc-option, -EL) +KBUILD_AFLAGS += $(call cc-option, -EL) +LDFLAGS += $(call cc-option, -EL) else KBUILD_CFLAGS += $(call cc-option, -EB) +KBUILD_AFLAGS += $(call cc-option, -EB) +LDFLAGS += $(call cc-option, -EB) endif --- greentime@atcsqa02:/sqa2/greentime/contrib/travis/build_script/src_pkg/linux <gt-master> $ nds32le-elf-readelf -h vmlinux ELF Header: Magic: 7f 45 4c 46 01 02 01 00 00 00 00 00 00 00 00 00 Class: ELF32 Data: 2's complement, big endian Version: 1 (current) OS/ABI: UNIX - System V ABI Version: 0 Type: EXEC (Executable file) Machine: Andes Technology compact code size embedded RISC processor family Version: 0x1 Entry point address: 0xc000 Start of program headers: 52 (bytes into file) Start of section headers: 905772 (bytes into file) Flags: 0x30000242, AABI, Andes ELF V1.4, Andes Star v3.0, PERF1 Size of this header: 52 (bytes) Size of program headers: 32 (bytes) Number of program headers: 4 Size of section headers: 40 (bytes) Number of section headers: 18 Section header string table index: 15
