Public bug reported:
$ gcc -fsanitize=undefined /dev/null
/usr/bin/ld: unrecognized option '--push-state--no-as-needed'
/usr/bin/ld: use the --help option for usage information
collect2: error: ld returned 1 exit status
$ gcc-9 -fsanitize=undefined /dev/null
/usr/bin/ld: unrecognized option '--push-state--no-as-needed'
/usr/bin/ld: use the --help option for usage information
collect2: error: ld returned 1 exit status
$ gcc -static-libubsan -fsanitize=undefined /dev/null
/dev/null: file not recognized: File truncated
collect2: error: ld returned 1 exit status
$ gcc --version
gcc (Ubuntu 5.5.0-12ubuntu1~16.04) 5.5.0 20171010
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ gcc-9 --version
gcc-9 (Ubuntu 9.3.0-10ubuntu2~16.04) 9.3.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
==========================
the issue is caused by
$ gcc -dumpspecs | grep push
%{static|static-libgcc:-lgcc
-lgcc_eh}%{!static:%{!static-libgcc:%{!shared-libgcc:-lgcc --push-state
--as-needed -lgcc_s --pop-state}%{shared-libgcc:-lgcc_s%{!shared: -lgcc}}}}
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S: %(linker)
%{!fno-use-linker-plugin:%{!fno-lto: -plugin %(linker_plugin_file)
-plugin-opt=%(lto_wrapper) -plugin-opt=-fresolution=%u.res
%{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}}
}}%{flto|flto=*:%<fcompare-debug*} %{flto} %{fno-lto} %{flto=*} %l
%{no-pie:} %{pie:-pie} %{fuse-ld=*:-fuse-ld=%*} %{gz*:%e-gz is not supported
in this configuration} -z relro %X %{o*} %{e*} %{N} %{n} %{r} %{s} %{t}
%{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}}
%{!nostdlib:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start
-u_vtable_map_vars_end} %{fvtable-verify=preinit: -lvtv
-u_vtable_map_vars_start -u_vtable_map_vars_end}} %{static:} %{L*}
%(mfwrap) %(link_libgcc)
%{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):%{!shared:libasan_preinit%O%s}
%{static-libasan:%{!shared:-Bstatic --whole-archive -lasan --no-whole-archive
-Bdynamic}}%{!static-libasan:%{!fuse-ld=gold:--push-state} --no-as-needed
-lasan %{fuse-ld=gold:--as-needed;:--pop-state}}}
%{%:sanitize(thread):%{static-libtsan:%{!shared:-Bstatic --whole-archive -ltsan
--no-whole-archive -Bdynamic}}%{!static-libtsan:%{!fuse-ld=gold:--push-state}
--no-as-needed -ltsan %{fuse-ld=gold:--as-needed;:--pop-state}}}
%{%:sanitize(leak):%{static-liblsan:%{!shared:-Bstatic --whole-archive -llsan
--no-whole-archive -Bdynamic}}%{!static-liblsan:%{!fuse-ld=gold:--push-state}
--no-as-needed -llsan %{fuse-ld=gold:--as-needed;:--pop-state}}}}} %o
%{!nostdlib:%{!nodefaultlibs:%{mmpx:%{fcheck-pointer-bounds:
%{static:--whole-archive -lmpx --no-whole-archive
%:include(libmpx.spec)%(link_libmpx)} %{!static:%{static-libmpx:-Bstatic
--whole-archive} %{!static-libmpx:--push-state --no-as-needed} -lmpx
%{!static-libmpx:--pop-state} %{static-libmpx:--no-whole-archive -Bdynamic
%:include(libmpx.spec)%(link_libmpx)}}}}%{mmpx:%{fcheck-pointer-bounds:%{!fno-chkp-use-wrappers:
%{static:-lmpxwrappers} %{!static:%{static-libmpxwrappers:-Bstatic}
-lmpxwrappers %{static-libmpxwrappers: -Bdynamic}}}}}}}
%{mmpx:%{fcheck-pointer-bounds:%{!static:%:include(libmpx.spec)%(link_mpx)}}}
%{fopenacc|fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}
%{fcilkplus:%:include(libcilkrts.spec)%(link_cilkrts)}
%{fgnu-tm:%:include(libitm.spec)%(link_itm)} %(mflib) %{fsplit-stack:
--wrap=pthread_create} %{fprofile-arcs|fprofile-generate*|coverage:-lgcov}
%{!nostdlib:%{!nodefaultlibs:%{%:sanitize(address):
%{static-libasan:%:include(libsanitizer.spec)%(link_libasan)}
%{static:%ecannot specify -static with -fsanitize=address}}
%{%:sanitize(thread):
%{static-libtsan:%:include(libsanitizer.spec)%(link_libtsan)}
%{static:%ecannot specify -static with -fsanitize=thread}}
%{%:sanitize(undefined):%{static-libubsan:-Bstatic}
%{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed} -lubsan
%{static-libubsan:-Bdynamic}
%{!static-libubsan:%{fuse-ld=gold:--as-needed;:--pop-state}}
%{static-libubsan:%:include(libsanitizer.spec)%(link_libubsan)}}
%{%:sanitize(leak):
%{static-liblsan:%:include(libsanitizer.spec)%(link_liblsan)}}}}
%{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}
%{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}
================
specifically by
%{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed}
with space on wrong side of closing brace
** Affects: gcc-9 (Ubuntu)
Importance: Undecided
Status: New
** Tags: ppa
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https://bugs.launchpad.net/bugs/1896458
Title:
newer gcc packages in toolchain ppa broke ubsan
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