Am Dienstag, 9. Februar 2021, 09:44:33 CET schrieb Rolf Eike Beer: > Am Dienstag, 9. Februar 2021, 05:59:56 CET schrieb Daniel Díaz: > > When compiling under OpenEmbedded, the following error is seen > > > > as of recently: > > /srv/oe/build/tmp/hosttools/ld: cannot find /lib/libc.so.6 inside / > > /srv/oe/build/tmp/hosttools/ld: cannot find /usr/lib/libc_nonshared.a > > > > inside / /srv/oe/build/tmp/hosttools/ld: cannot find > > /lib/ld-linux-x86-64.so.2 inside / collect2: error: ld returned 1 exit > > status > > > > make[2]: *** [scripts/Makefile.host:95: scripts/extract-cert] Error 1 > > [...] > > > As per `make`'s documentation: > > LDFLAGS > > > > Extra flags to give to compilers when they are supposed to > > invoke the linker, ‘ld’, such as -L. Libraries (-lfoo) > > should be added to the LDLIBS variable instead. > > > > LDLIBS > > > > Library flags or names given to compilers when they are > > supposed to invoke the linker, ‘ld’. LOADLIBES is a > > deprecated (but still supported) alternative to LDLIBS. > > Non-library linker flags, such as -L, should go in the > > LDFLAGS variable. > > Correct. And the patch I use for my local 4.19 build actually uses LDLIBS, > so it must have gone wrong in some rebase for one of the intermediate > versions. > > Acked-by: Rolf Eike Beer <eb@xxxxxxxxx> Ok, now actually with proper testing: no, your patch doesn't work. When changing LDLIBS to LDFLAGS things do not show up on the commandline at all. LDLIBS: gcc -Wp,-MMD,scripts/.sign-file.d -Wall -Wmissing-prototypes -Wstrict- prototypes -O2 -fomit-frame-pointer -std=gnu89 -I/opt/emlix/test/include -I ./scripts -o scripts/sign-file /tmp/e2/build/linux-kernel/scripts/sign- file.c -L/opt/emlix/test/lib -lcrypto -lz -ldl -pthread LDFLAGS: gcc -Wp,-MMD,scripts/.sign-file.d -Wall -Wmissing-prototypes -Wstrict- prototypes -O2 -fomit-frame-pointer -std=gnu89 -I/opt/emlix/test/include -I ./scripts -o scripts/sign-file /tmp/e2/build/linux-kernel/scripts/sign- file.c When looking closely you may notice that this is not entirely the same as current master would output: I missed the CFLAGS for sign-file in my patch. When testing your patch I accidentially had a .config that had module signatures disabled, so I have not tested it actually, that's why I didn't notice that it doesn't work. I'm just guessing, but your build error looks like you are also cross-building the tools, which is wrong. You want them to be host-tools. So don't export PKG_CONFIG_SYSROOT_DIR, it would then try to link target libraries into a host binary. Eike -- Rolf Eike Beer, emlix GmbH, http://www.emlix.com Fon +49 551 30664-0, Fax +49 551 30664-11 Gothaer Platz 3, 37083 Göttingen, Germany Sitz der Gesellschaft: Göttingen, Amtsgericht Göttingen HR B 3160 Geschäftsführung: Heike Jordan, Dr. Uwe Kracke – Ust-IdNr.: DE 205 198 055 emlix - smart embedded open source
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