Same thing with -Wl,-Bsymbolic-functions: https://lists.ubuntu.com/archives/ubuntu-devel/2018-June/040371.html
On Fri, Apr 29, 2022 at 10:50 AM Andreas Hasenack <andr...@canonical.com> wrote: > > Hi, > > I disabled lto in a build according to the instructions from [1]: > > export DEB_BUILD_MAINT_OPTIONS=optimize=-lto > > But I saw that it was still present in some steps of the build. > Notably when krb5/gssapi was used: > ... > -- Found GSSAPI: -L/usr/lib/x86_64-linux-gnu/mit-krb5 > -Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -flto=auto > -Wl,-z,relro -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err > ... > /usr/bin/cc -fPIC -g -O2 > -ffile-prefix-map=/home/ubuntu/git/packages/mariadb/mariadb-10.6=. > -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time > -D_FORTIFY_SOURCE=2 -Wdate-time -D_FORTIFY_SOURCE=2 -pie -fPIC > -fstack-protector --param=ssp-buffer-size=4 -Wunused -Wlogical-op > -Wno-uninitialized -Wall -Wextra -Wformat-security -Wno-init-self > -Wwrite-strings -Wshift-count-overflow -Wdeclaration-after-statement > -Wno-undef -Wno-unknown-pragmas -O2 -g -static-libgcc > -fno-omit-frame-pointer -fno-strict-aliasing -Wno-uninitialized > -fno-omit-frame-pointer -D_FORTIFY_SOURCE=2 -DDBUG_OFF -Wall > -Wdeclaration-after-statement -Wextra -Wformat-security > -Wno-format-truncation -Wno-init-self -Wno-nonnull-compare > -Wno-unused-parameter -Wvla -Wwrite-strings -DDBUG_OFF > -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,relro,-z,now -shared -o > auth_gssapi_client.so > CMakeFiles/auth_gssapi_client.dir/plugins/auth/auth_gssapi_client.c.o > CMakeFiles/auth_gssapi_client.dir/plugins/auth/gssapi_client.c.o > CMakeFiles/auth_gssapi_client.dir/plugins/auth/gssapi_errmsg.c.o > -L/usr/lib/x86_64-linux-gnu/mit-krb5 -Wl,-Bsymbolic-functions > -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -lgssapi_krb5 > -lkrb5 -lk5crypto -lcom_err > > Indeed in this case it comes from kerberos/gssapi: > > $ krb5-config --libs gssapi > -L/usr/lib/x86_64-linux-gnu/mit-krb5 -Wl,-Bsymbolic-functions > -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -lgssapi_krb5 > -lkrb5 -lk5crypto -lcom_err > > That sounds bad. It means only portions of the build will have lto > disabled, while others will flip it back on. How to sort this out? > Looks like the krb5 package needs some fixing, but I'm unsure how. > > > 1. https://wiki.ubuntu.com/ToolChain/LTO -- ubuntu-devel mailing list ubuntu-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel
