Author: brooks Date: Tue Apr 7 15:32:08 2020 New Revision: 359691 URL: https://svnweb.freebsd.org/changeset/base/359691
Log: Allow the kernel to build with a compiler that sets -fno-common. The mechanism that generates assym.inc and offset.inc depends on the symbols in question being common. For now, simply force the object files to be created with -fcommon. -fno-common will be the default in GCC10/LLVM11. Submitted by: arichardson Reviewed by: kevans Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24322 Modified: head/sys/conf/kern.post.mk Modified: head/sys/conf/kern.post.mk ============================================================================== --- head/sys/conf/kern.post.mk Tue Apr 7 15:10:04 2020 (r359690) +++ head/sys/conf/kern.post.mk Tue Apr 7 15:32:08 2020 (r359691) @@ -235,20 +235,20 @@ offset.inc: $S/kern/genoffset.sh genoffset.o NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} genoffset.o: $S/kern/genoffset.c - ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/kern/genoffset.c + ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c # genoffset_test.o is not actually used for anything - the point of compiling it # is to exercise the CTASSERT that checks that the offsets in the offset.inc # _lite struct(s) match those in the original(s). genoffset_test.o: $S/kern/genoffset.c offset.inc - ${CC} -c ${CFLAGS:N-flto:N-fno-common} -DOFFSET_TEST \ + ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \ $S/kern/genoffset.c -o ${.TARGET} assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} genassym.o: $S/$M/$M/genassym.c offset.inc - ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c + ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c OBJS_DEPEND_GUESS+= opt_global.h genoffset.o genassym.o vers.o: opt_global.h _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
