Its trying to call the real read() instead of the __wrap_read() even though --wrap=read was passed to the linker. Seems like the linker is ignoring --wrap=read if LTO is enabled.
The attached debdiff is a quick fix for Noble. No need to add to lto- disabled-list, as only the test is building linking with --wrap=read. But I have not forwarded the bug upstream as I am not sure if this should be a gcc bug or a bug in mtd-utils. If gcc ignores --wrap=read with LTO enabled then imho, it should be a gcc bug. A build with this change can be seen at https://launchpad.net/~sudipmuk/+archive/ubuntu/mtd- utils/+build/28026320 ** Patch added: "mtd-utils.debdiff" https://bugs.launchpad.net/ubuntu/+source/mtd-utils/+bug/2060214/+attachment/5761652/+files/mtd-utils.debdiff ** Changed in: mtd-utils (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2060214 Title: mtd-utils 1:2.1.6-1build1 FTBFS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mtd-utils/+bug/2060214/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
