Date: Mon, 19 Nov 2018 20:40:50 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 233339] genassym.o build race Message-ID: <bug-233339-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233339 Bug ID: 233339 Summary: genassym.o build race Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: markj@FreeBSD.org I occasionally hit a kernel build failure when building a kernel from scrat= ch (i.e., no -DKERNFAST or anything like that). It manifests like this: nm: 'genassym.o': No such file or directory nm: 'genassym.o': No such file or directory /usr/home/markj/src/freebsd-dev/sys/amd64/linux32/linux32_support.s:38:2: error: expected relocatable expression movl $-EFAULT,%eax ^ At this point, if I go into the objdir for linux.ko, I see an empty assym.i= nc and no genassym.o. In kmod.mk we have: 480 assym.inc: genassym.o 481 offset.inc: genoffset.o 482 assym.inc: ${SYSDIR}/kern/genassym.sh 483 sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET} 484 genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c offset.inc 485 genassym.o: ${SRCS:Mopt_*.h} 486 ${CC} -c ${CFLAGS:N-flto:N-fno-common} \ 487 ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c 488 offset.inc: ${SYSDIR}/kern/genoffset.sh genoffset.o 489 sh ${SYSDIR}/kern/genoffset.sh genoffset.o > ${.TARGET} 490 genoffset.o: ${SYSDIR}/kern/genoffset.c 491 genoffset.o: ${SRCS:Mopt_*.h} 492 ${CC} -c ${CFLAGS:N-flto:N-fno-common} \ 493 ${SYSDIR}/kern/genoffset.c So, we *should* have compiled genassym.c before invoking genassym.sh (which= is where the nm(1) error above comes from), but that's not happening. The pro= blem seems to be that the dependency is satisfied by the kernel's genassym.o, wh= ich is generated very early during the kernel build, so when building modules we don't wait for the module's genassym.o to be created. --=20 You are receiving this mail because: You are the assignee for the bug.=
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