<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 9 Jan 2021 at 00:52, Michael Biebl <<a href="mailto:biebl@debian.org">biebl@debian.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Am 07.01.21 um 22:39 schrieb Michael Hudson-Doyle:<br>
<br>
> I'm hardly an expert in such things but it looks to me as if gcc is<br>
> ordering things differently between the two builds:<br>
> <br>
> <a href="https://tests.reproducible-builds.org/debian/dbd/unstable/arm64/systemd_247.2-4.diffoscope.html#systemd-tests_---.---_arm--.deb---data.tar.xz---data.tar---.-usr-lib-systemd-tests-manual-test-udev---objdump---line-numbers---disassemble---demangle---reloc---no-show-raw-insn---section-.text---" rel="noreferrer" target="_blank">https://tests.reproducible-builds.org/debian/dbd/unstable/arm64/systemd_247.2-4.diffoscope.html#systemd-tests_---.---_arm--.deb---data.tar.xz---data.tar---.-usr-lib-systemd-tests-manual-test-udev---objdump---line-numbers---disassemble---demangle---reloc---no-show-raw-insn---section-.text---</a><br>
> <br>
> and all the other differences follow on from that. Unless systemd is using<br>
> particularly strange compiler options,<br>
<br>
cflags:<br>
<a href="https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/meson.build#L343" rel="noreferrer" target="_blank">https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/meson.build#L343</a><br>
<br>
linkflags:<br>
<a href="https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/meson.build#L401" rel="noreferrer" target="_blank">https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/meson.build#L401</a></blockquote><div><br></div><div>Those don't look particularly exotic to me.</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
We do build with LTO enabled.<br></blockquote><div><br></div><div>I guess that could be the culprit. Would still be a gcc bug though AIUI.</div><div><br></div><div>Cheers,</div><div>mwh</div><div> </div></div></div>