On 5/10/20 12:53 PM, Mahmood Naderan wrote: >> OK, I suggest that you reorder the options like so: >> >> KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) --emit-relocs > > > I did that. After > > $ make V=1 > $ sudo make modules_install V=1 > $ sudo make install > > I grepped for "emit-relocs" in the log and saw many instances such as > > gcc -Wp,-MD,drivers/rtc/.rtc-ds1305.o.d -nostdinc -isystem > /usr/lib/gcc/x86_64-linux-gnu/5/include -I./arch/x86/include > -I./arch/x86/include/generated -I./include -I./arch/x86/include/uapi > -I./arch/x86/include/generated/uapi -I./include/uapi > -I./include/generated/uapi -include ./include/linux/kconfig.h -include > ./include/linux/compiler_types.h -D__KERNEL__ -Wall -Wundef > -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common > -fshort-wchar -Werror-implicit-function-declaration > -Wno-format-security -std=gnu89 -fno-PIE -mno-sse -mno-mmx -mno-sse2 > -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 > -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mskip-rax-setup > -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time > -DCONFIG_X86_X32_ABI -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 > -DCONFIG_AS_CFI_SECTIONS=1 -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_SSSE3=1 > -DCONFIG_AS_CRC32=1 -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 > -DCONFIG_AS_AVX512=1 -DCONFIG_AS_SHA1_NI=1 -DCONFIG_AS_SHA256_NI=1 > -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables > -mindirect-branch=thunk-extern -mindirect-branch-register > -fno-jump-tables -fno-delete-null-pointer-checks -O2 > --param=allow-store-data-races=0 -Wframe-larger-than=1024 > -fstack-protector-strong -Wno-unused-but-set-variable > -fno-omit-frame-pointer -fno-optimize-sibling-calls > -fno-var-tracking-assignments -g -gdwarf-4 -pg -mrecord-mcount > -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement > -Wno-pointer-sign -fno-strict-overflow -fno-merge-all-constants > -fmerge-constants -fno-stack-check -fconserve-stack > -Werror=implicit-int -Werror=strict-prototypes -Werror=date-time > -Werror=incompatible-pointer-types -Werror=designated-init -DMODULE > -DKBUILD_BASENAME='"rtc_ds1305"' -DKBUILD_MODNAME='"rtc_ds1305"' -c -o > drivers/rtc/rtc-ds1305.o drivers/rtc/rtc-ds1305.c > ./tools/objtool/objtool check --module --retpoline > "drivers/scsi/aacraid/dpcsup.o"; > > OR > > ld -r -m elf_x86_64 --emit-relocs -z max-page-size=0x200000 -T > ./scripts/module-common.lds --build-id -o > sound/usb/line6/snd-usb-line6.ko sound/usb/line6/snd-usb-line6.o > sound/usb/line6/snd-usb-line6.mod.o ; true > > > > I guess that all kernel modules are now use --emit-relocs. > I would like to be sure that libc and those files related to syscalls > are also using that. > > I grepped for "libc.so" but it seems that there is no such match. > Did I miss something? The kernel doesn't use libc... -- ~Randy
