12803 2018-06-20 10:19:47 +0000 [Yocto-2.6_M1.RC1] Building a kernel module on target image fails 2018-06-22 11:58:05 +0000 1 1 7 Build System, Metadata & Runtime Meta-yocto meta-yocto 2.6 x86 Multiple RESOLVED NOTABUG Medium+ normal 2.6 M2 1 pankaj-y apoorv.sangal manish.das poky.bs.watcher poky.watcher richard.purdie --- --- No (bug/feature does not impact docs) oldest_to_newest 80844 0 pankaj-y 2018-06-20 10:19:47 +0000 Test Case ID : https://bugzilla.yoctoproject.org/tr_show_case.cgi?case_id=316 poky commit ddbd7b0cd6580ee26e11aa87e426fb294b372d64 Please find the logs for the same : root@qemux86-64:/usr/src/kernel# cd /home/root/ root@qemux86-64:~# make make -C /usr/src/kernel M=/home/root modules make[1]: Entering directory '/usr/src/kernel' make[2]: *** No rule to make target 'tools/objtool/objtool', needed by '/home/root/hello.o'. Stop. make[1]: *** [Makefile:1522: _module_/home/root] Error 2 make[1]: Leaving directory '/usr/src/kernel' make: *** [Makefile:6: all] Error 2 Steps to reproduce : 1.Create a QEMU(x86 or x86-64) core-image-sato-sdk image. 2.Run 'make scripts' in /usr/src/kernel 3. cd /home/root and create hello.c with the following content: #undef _KERNEL_ #define _KERNEL_ #undef MODULE #define MODULE #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> static int __init hello_init(void) { printk(KERN_INFO "Hello world!\n"); return 0; } static void __exit hello_cleanup(void) { printk(KERN_INFO "Cleaning up module.\n"); } module_init(hello_init); module_exit(hello_cleanup); 4. Create a Makefile with the following content and run 'make' obj-m := hello.o KDIR := /usr/src/kernel PWD := $(shell pwd) all: $(MAKE) -C $(KDIR) M=$(PWD) modules clean: $(MAKE) -C $(KDIR) M=$(PWD) clean 80859 1 pankaj-y 2018-06-21 08:19:00 +0000 While Regression, I unable to see this issue with below mentioned cofiguration : Branch: master Build name: yocto-2.5_M1.rc1 poky commit: b73e96e7f3f5d1ba3a221d99792a7a3c7ef42c21 Architecture : x86-64 80867 2 richard.purdie 2018-06-21 09:11:49 +0000 As far as I can tell this is an automated test case: http://git.yoctoproject.org/cgit.cgi/poky/tree/meta/lib/oeqa/runtime/cases/kernelmodule.py a) Why are QA running this manually? b) If it really does need to be run manually, the steps need updating, as already done in the above code: http://git.yoctoproject.org/cgit.cgi/poky/commit/meta/lib/oeqa/runtime/cases/kernelmodule.py?id=0f85563eacf5138d98b826343cdfc3833d1c5c8e i.e. "make scripts prepare" instead of "make scripts" I still wonder why this is being run manually though? 80868 3 richard.purdie 2018-06-21 09:12:43 +0000 Also, one part of the bug says yocto-2.5_M1.rc1 the other says yocto-2.6_M1.rc1, I'll assume the latter is correct... 80887 4 richard.purdie 2018-06-21 15:00:44 +0000 (In reply to comment #3) > Also, one part of the bug says yocto-2.5_M1.rc1 the other says > yocto-2.6_M1.rc1, I'll assume the latter is correct... I realise now you're highlighting this is a regression, thanks. 80898 5 pankaj-y 2018-06-22 07:41:12 +0000 Issue has gone with "make scripts prepare" instead of "make scripts". Hence please help to close this issue. Configuration : Architecture : x86-64 Release : 2.6_M1.RC1 Logs are given below for the same : root@qemux86-64:/usr/src/kernel# make scripts prepare HOSTCC scripts/basic/fixdep HOSTCC scripts/basic/bin2c CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o CC scripts/mod/devicetable-offsets.s CHK scripts/mod/devicetable-offsets.h UPD scripts/mod/devicetable-offsets.h HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost HOSTCC scripts/kallsyms HOSTCC scripts/conmakehash HOSTCC scripts/recordmcount HOSTCC scripts/sortextable HOSTCC arch/x86/tools/relocs_32.o HOSTCC arch/x86/tools/relocs_64.o HOSTCC arch/x86/tools/relocs_common.o HOSTLD arch/x86/tools/relocs CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CC kernel/bounds.s CHK include/generated/bounds.h CHK include/generated/timeconst.h CC arch/x86/kernel/asm-offsets.s CHK include/generated/asm-offsets.h CALL scripts/checksyscalls.sh DESCEND objtool HOSTCC /usr/src/kernel/tools/objtool/fixdep.o HOSTLD /usr/src/kernel/tools/objtool/fixdep-in.o LINK /usr/src/kernel/tools/objtool/fixdep CC /usr/src/kernel/tools/objtool/exec-cmd.o CC /usr/src/kernel/tools/objtool/help.o CC /usr/src/kernel/tools/objtool/pager.o CC /usr/src/kernel/tools/objtool/parse-options.o CC /usr/src/kernel/tools/objtool/run-command.o CC /usr/src/kernel/tools/objtool/sigchain.o CC /usr/src/kernel/tools/objtool/subcmd-config.o LD /usr/src/kernel/tools/objtool/libsubcmd-in.o AR /usr/src/kernel/tools/objtool/libsubcmd.a CC /usr/src/kernel/tools/objtool/arch/x86/decode.o LD /usr/src/kernel/tools/objtool/arch/x86/objtool-in.o CC /usr/src/kernel/tools/objtool/builtin-check.o CC /usr/src/kernel/tools/objtool/builtin-orc.o CC /usr/src/kernel/tools/objtool/check.o CC /usr/src/kernel/tools/objtool/orc_gen.o CC /usr/src/kernel/tools/objtool/orc_dump.o CC /usr/src/kernel/tools/objtool/elf.o CC /usr/src/kernel/tools/objtool/special.o CC /usr/src/kernel/tools/objtool/objtool.o CC /usr/src/kernel/tools/objtool/libstring.o CC /usr/src/kernel/tools/objtool/str_error_r.o LD /usr/src/kernel/tools/objtool/objtool-in.o Warning: synced file at 'tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk' differs from latest kernel version at 'arch/x86/tools/gen-insn-attr-x86.awk' LINK /usr/src/kernel/tools/objtool/objtool root@qemux86-64:/usr/src/kernel# cd root@qemux86-64:~# make make -C /usr/src/kernel M=/home/root modules make[1]: Entering directory '/usr/src/kernel' CC [M] /home/root/hello.o Building modules, stage 2. MODPOST 1 modules CC /home/root/hello.mod.o LD [M] /home/root/hello.ko make[1]: Leaving directory '/usr/src/kernel' root@qemux86-64:~# insmod hello.ko root@qemux86-64:~# lsmod Module Size Used by hello 16384 0 nfsd 258048 11 bnep 20480 2 uvesafb 28672 1 root@qemux86-64:~# dmesg | grep -i hello [ 856.655544] hello: loading out-of-tree module taints kernel. [ 856.657533] hello: module license 'unspecified' taints kernel. [ 856.688530] Hello world! root@qemux86-64:~# 80904 6 manish.das 2018-06-22 11:58:05 +0000 Re running the test case with "make scripts prepare" instead of "make scripts" as suggested by Richard, resolved the issue. Since this test case is already automated, this test care will be removed from the manual execution test suite.