On Sun, May 29, 2022 at 7:47 AM Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > Hi, > > On Fri, May 13, 2022 at 08:39:21PM +0900, Masahiro Yamada wrote: > > Currently, CONFIG_MODVERSIONS needs extra link to embed the symbol > > versions into ELF objects. Then, modpost extracts the version CRCs > > from them. > > > [ ... ] > > This commit changes modpost to extract CRCs from *.cmd files instead of > > from ELF objects. > > > > Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx> > > Reviewed-by: Nicolas Schier <nicolas@xxxxxxxxx> > > Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx> > > Reviewed-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> > > This patch results in > > ._muldi3_di.o.cmd: No such file or directory > > when building parisc64:defconfig, and > > ._divsi3.o.cmd: No such file or directory > > when building csky:allmodconfig. > > Reverting this patch (and the subsequent kbuild patches to avoid > conflicts) fixes the problem for both architectures. In case it > helps, the complete build log when rebuilding an image for csky > is as follows. Thank you for the report! This commit has been in the tree for a while but I did not get this kind of report from the 0-day bot. The wide test coverage from your system is very helpful. I just submitted a fix. Thank you. > # > # No change to .config > # > HOSTCC scripts/mod/modpost.o > HOSTLD scripts/mod/modpost > CALL scripts/atomic/check-atomics.sh > CALL scripts/checksyscalls.sh > CHK include/generated/compile.h > SO2S arch/csky/kernel/vdso/vdso-syms.S > AS arch/csky/kernel/vdso/vdso-syms.o > AR arch/csky/kernel/vdso/built-in.a > AR arch/csky/kernel/built-in.a > CHK kernel/kheaders_data.tar.xz > GEN .version > CHK include/generated/compile.h > UPD include/generated/compile.h > CC init/version.o > AR init/built-in.a > LD vmlinux.o > MODPOST vmlinux.symvers > ._divsi3.o.cmd: No such file or directory > make[1]: *** [scripts/Makefile.modpost:59: vmlinux.symvers] Error 1 > make: *** [Makefile:1159: vmlinux] Error 2 > > This was seen with gcc 11.2 and 11.3. > > Guenter > > --- > bisect on mainline: > > # bad: [9d004b2f4fea97cde123e7f1939b80e77bf2e695] Merge tag 'cxl-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl > # good: [4b0986a3613c92f4ec1bdc7f60ec66fea135991f] Linux 5.18 > git bisect start 'HEAD' 'v5.18' > # good: [86c87bea6b42100c67418af690919c44de6ede6e] Merge tag 'devicetree-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux > git bisect good 86c87bea6b42100c67418af690919c44de6ede6e > # good: [c011dd537ffe47462051930413fed07dbdc80313] Merge tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc > git bisect good c011dd537ffe47462051930413fed07dbdc80313 > # bad: [df202b452fe6c6d6f1351bad485e2367ef1e644e] Merge tag 'kbuild-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild > git bisect bad df202b452fe6c6d6f1351bad485e2367ef1e644e > # good: [d4dcdc53c492a7b9fa9031cb85e238b21208ada2] Merge tag 'qcom-arm64-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/dt > git bisect good d4dcdc53c492a7b9fa9031cb85e238b21208ada2 > # good: [ae862183285cbb2ef9032770d98ffa9becffe9d5] Merge tag 'arm-dt-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc > git bisect good ae862183285cbb2ef9032770d98ffa9becffe9d5 > # good: [cc3c470ae4ad758b8ddad825ab199f7eaa8b0a9e] Merge tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc > git bisect good cc3c470ae4ad758b8ddad825ab199f7eaa8b0a9e > # good: [ecf0aa5317b0ad6bb015128a5b763c954fd58708] Merge tag 'arm-multiplatform-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc > git bisect good ecf0aa5317b0ad6bb015128a5b763c954fd58708 > # good: [4484054816cab940fc2fde23fa989174fec889d0] modpost: use doubly linked list for dump_lists > git bisect good 4484054816cab940fc2fde23fa989174fec889d0 > # good: [16477cdfefdb494235a675cc80563d736991d833] Merge tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic > git bisect good 16477cdfefdb494235a675cc80563d736991d833 > # good: [a44abaca0e196cfeef2374ed663b97daa1ad112a] modpost: move *.mod.c generation to write_mod_c_files() > git bisect good a44abaca0e196cfeef2374ed663b97daa1ad112a > # good: [69c4cc99bbcbf3ef2e1901b569954e9226180840] modpost: add sym_find_with_module() helper > git bisect good 69c4cc99bbcbf3ef2e1901b569954e9226180840 > # bad: [7b4537199a4a8480b8c3ba37a2d44765ce76cd9b] kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS > git bisect bad 7b4537199a4a8480b8c3ba37a2d44765ce76cd9b > # bad: [f292d875d0dc700b3af0bef04c5abc1dc7b3b62c] modpost: extract symbol versions from *.cmd files > git bisect bad f292d875d0dc700b3af0bef04c5abc1dc7b3b62c > # first bad commit: [f292d875d0dc700b3af0bef04c5abc1dc7b3b62c] modpost: extract symbol versions from *.cmd files > > --- > bisect on kbuild-5.19: > > # bad: [5ce2176b81f77366bd02c27509b83049f0020544] genksyms: adjust the output format to modpost > # good: [3123109284176b1532874591f7c81f3837bbdc17] Linux 5.18-rc1 > git bisect start 'HEAD' 'v5.18-rc1' > # good: [70ddb48db4aaddd3c2a7d8802463e15b21ce8525] modpost: move struct namespace_list to modpost.c > git bisect good 70ddb48db4aaddd3c2a7d8802463e15b21ce8525 > # good: [e76cc48d8e6df5d949284132981db73d2dd8c6b5] modpost: make sym_add_exported() always allocate a new symbol > git bisect good e76cc48d8e6df5d949284132981db73d2dd8c6b5 > # good: [78e9e56af3858bf2c52c065daa6c8bee0d72048c] kbuild: record symbol versions in *.cmd files > git bisect good 78e9e56af3858bf2c52c065daa6c8bee0d72048c > # good: [69c4cc99bbcbf3ef2e1901b569954e9226180840] modpost: add sym_find_with_module() helper > git bisect good 69c4cc99bbcbf3ef2e1901b569954e9226180840 > # bad: [7b4537199a4a8480b8c3ba37a2d44765ce76cd9b] kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS > git bisect bad 7b4537199a4a8480b8c3ba37a2d44765ce76cd9b > # bad: [f292d875d0dc700b3af0bef04c5abc1dc7b3b62c] modpost: extract symbol versions from *.cmd files > git bisect bad f292d875d0dc700b3af0bef04c5abc1dc7b3b62c > # first bad commit: [f292d875d0dc700b3af0bef04c5abc1dc7b3b62c] modpost: extract symbol versions from *.cmd files -- Best Regards Masahiro Yamada
