From: Waldemar Kozaczuk <jwkozac...@gmail.com> Committer: Waldemar Kozaczuk <jwkozac...@gmail.com> Branch: master
makefile: added comments justifying building kernel objects with "-fno-pie" Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com> --- diff --git a/Makefile b/Makefile --- a/Makefile +++ b/Makefile @@ -1853,6 +1853,10 @@ boost-libs := $(boost-lib-dir)/libboost_system$(boost-mt).a objects += fs/nfs/nfs_null_vfsops.o +# The OSv kernel is linked into an ordinary, non-PIE, executable, so there is no point in compiling +# with -fPIC or -fpie and objects that can be linked into a PIE. On the contrary, PIE-compatible objects +# have overheads and can cause problems (see issue #1112). Recently, on some systems gcc's +# default was changed to use -fpie, so we need to undo this default by explicitly specifying -fno-pie. $(objects:%=$(out)/%) $(drivers:%=$(out)/%) $(out)/arch/$(arch)/boot.o $(out)/loader.o $(out)/runtime.o: COMMON += -fno-pie # ld has a known bug (https://sourceware.org/bugzilla/show_bug.cgi?id=6468) -- You received this message because you are subscribed to the Google Groups "OSv Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to osv-dev+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/osv-dev/000000000000f9c8b505b6fc0bd1%40google.com.
