Hi Nicholas, 2017-06-19 15:51 GMT+09:00 Nicholas Piggin <npiggin@xxxxxxxxx>: > On Mon, 19 Jun 2017 15:16:17 +0900 > Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > >> Hi Nicholas, >> >> >> 2017-06-09 14:24 GMT+09:00 Nicholas Piggin <npiggin@xxxxxxxxx>: >> > Close the --whole-archives option with --no-whole-archive. Some >> > architectures end up including additional .o and files multiple >> > times after this, and they get duplicate symbols when they are >> > brought under the --whole-archives option. >> >> Which architectures have additional files after --no-whole-archive ? >> >> I see this case only for ARCH = "um" in vmlinux_link() >> where it adds some -l* options after --no-whole-archive. >> >> I think it is good to close the --whole-archives everywhere. >> So, the code looks OK to me, but I just wondered about the log. > > Actually a number of archs seemed to get build errors without this, > and they seem to come from libgcc perhaps. > > binfmt_elf.c:(.text+0x4851): undefined reference to `__kernel_syscall_via_epc' > /c/gcc/libgcc/libgcc2.c:1318: multiple definition of `__ucmpdi2' > /c/gcc/libgcc/libgcc2.c:405: multiple definition of `__lshrdi3' > /c/gcc/libgcc/libgcc2.c:433: multiple definition of `__ashldi3' > /c/gcc/libgcc/libgcc2.c:461: multiple definition of `__ashrdi3' > > /home/tony/buildall/src/gcc/libgcc/config/xtensa/lib2funcs.S:36: multiple definition of `__xtensa_libgcc_window_spill' > > etc Oops, I did not test such architectures. > m32r, parisc, xtensa seemed to be getting such errors. I wonder if > the linker implicitly adds some runtime libs at the end that get > caught up here. Either way I didn't look too far into it because this > fix seems obviously correct and solved the problem. > > Thanks, Which toolchains do you use? I downloaded xtensa-linux- from this site: https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/ I see a different error for xtensa. I applied all of you 5 patches, but xtensa build still fails. LD vmlinux.o xtensa-linux-ld: internal error /home/tony/buildall/src/binutils/ld/ldlang.c 6178 Could you check it? -- Best Regards Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
