On Thu, 2021-08-05 at 17:00 +0100, Richard Purdie via lists.openembedded.org wrote: > On Tue, 2021-07-27 at 09:36 -0400, Tony Battersby wrote: > > -f*-prefix-map flags are required when linking with LTO enabled to make > > the output binary reproducible. > > > > See discussion here: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101473 > > > > [YOCTO #14481] > > > > Signed-off-by: Tony Battersby <to...@cybernetics.com> > > --- > > > > /usr/sbin/lspci from pciutils is a good program to test that shows how > > adding -f*-prefix-map to LDFLAGS makes a program binary reproducible > > with LTO enabled. > > > > meta/conf/bitbake.conf | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf > > index 160abf40ee..c0d2e3f82f 100644 > > --- a/meta/conf/bitbake.conf > > +++ b/meta/conf/bitbake.conf > > @@ -595,7 +595,7 @@ TARGET_LINK_HASH_STYLE ?= > > "${@['-Wl,--hash-style=gnu',''][d.getVar('LINKER_HASH_ > > ASNEEDED ?= "-Wl,--as-needed" > > > > > > export LDFLAGS = "${TARGET_LDFLAGS}" > > -TARGET_LDFLAGS = "-Wl,-O1 ${TARGET_LINK_HASH_STYLE} ${ASNEEDED}" > > +TARGET_LDFLAGS = "-Wl,-O1 ${TARGET_LINK_HASH_STYLE} ${ASNEEDED} > > ${DEBUG_PREFIX_MAP}" > > # mips does not support GNU hash style therefore we override > > LINKER_HASH_STYLE_mipsarch_libc-musl = "sysv" > > > > This failed in testing in ruby: > > https://autobuilder.yoctoproject.org/typhoon/#/builders/115/builds/514 > > The error is a bit obtuse but in summary, the file: > > /tmp/work/core2-64-poky-linux/ruby/3.0.2-r0/sysroot-destdir/usr/lib/pkgconfig/ruby-3.0.pc >
The fix for this looked relatively straight forward so I've queued a patch in master-next for this. Cheers, Richard
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