Public bug reported:
In eoan we are activating new hardening defaults in gcc (-fstack-clash-
protection on all non-32-bit ARM arches and -fcet-protection on
i386/amd64/x32).
As a result of -fcet-protection by default, glibc FTBFS since it has to
be explicitly configured (./configure --enable-cet) to build correctly:
usr/bin/ld: warning: /<<PKGBUILDDIR>>/build-tree/i386-libc/elf/librtld.os:
corrupt GNU_PROPERTY_TYPE (5) size: 0
/usr/bin/ld: /<<PKGBUILDDIR>>/build-tree/i386-libc/elf/librtld.os: in function
`_rtld_main_check':
/<<PKGBUILDDIR>>/elf/../sysdeps/x86/dl-prop.h:33: undefined reference to
`_dl_cet_check'
/usr/bin/ld: /<<PKGBUILDDIR>>/elf/../sysdeps/x86/dl-prop.h:33: undefined
reference to `_dl_cet_check'
/usr/bin/ld: /<<PKGBUILDDIR>>/elf/../sysdeps/x86/dl-prop.h:33: undefined
reference to `_dl_cet_check'
/usr/bin/ld: /<<PKGBUILDDIR>>/build-tree/i386-libc/elf/librtld.os: in function
`_dl_open_check':
/<<PKGBUILDDIR>>/elf/../sysdeps/x86/dl-prop.h:41: undefined reference to
`_dl_cet_open_check'
/usr/bin/ld: /<<PKGBUILDDIR>>/build-tree/i386-libc/elf/ld.so.new: hidden symbol
`_dl_cet_open_check' isn't defined
/usr/bin/ld: final link failed: bad value
collect2: error: ld returned 1 exit status
This can be easily remedied by now enabling CET support at configure
time for glibc - see the attached debdiff which enables this for the
supported architectures which resolves this FTBFS.
** Affects: glibc (Ubuntu)
Importance: Undecided
Status: New
** Tags: ftbfs rls-ee-incoming
** Patch added: "glibc_2.29-0ubuntu3.debdiff"
https://bugs.launchpad.net/bugs/1833067/+attachment/5271149/+files/glibc_2.29-0ubuntu3.debdiff
** Tags added: ftbfs
** Tags added: rls-ee-incoming
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https://bugs.launchpad.net/bugs/1833067
Title:
FTBFS on amd64 / i386 when compiled with new hardening defaults in
eoan
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