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xo ip
n00b
Joined: 06 Nov 2024
Posts: 4
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 Posted: Wed Nov 06, 2024 3:17 pm Post subject: [SOLVED] elfutils error thread support required (hardened) |
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hello gentoo community,
i'm using stage3-amd64-musl-llvm-20241027T164832Z.tar.xz for installation and update it today, add manual the following to make.conf (enable hardening flags):
| Code: | WARNING_FLAGS="-Werror=odr -Werror=strict-aliasing"
HARDENING_CFLAGS="-fPIC -fPIE -fstack-clash-protection -fstack-protector-strong -fcf-protection=full -D_FORTIFY_SOURCE=2"
HARDENING_LDFLAGS="-Wl,-z,relro,-z,now -pie"
COMMON_FLAGS="-march=native -O2 -pipe -flto=thin ${WARNING_FLAGS}"
CFLAGS="${COMMON_FLAGS} ${HARDENING_CFLAGS}"
CXXFLAGS="${COMMON_FLAGS} ${HARDENING_CFLAGS}"
LDFLAGS="${LDFLAGS} -Wl,-O2 -Wl,--as-needed ${HARDENING_LDFLAGS}" |
Then i recompile the whole system with: | Code: | | emerge -e --ask --update --newuse --with-bdeps=y --quiet --deep @world |
One program failed: dev-libs/elfutils with the following error:
| Code: | | configure: error: __thread support required |
I then try nopie and nossp to /etc/portage/package.env from here: https://wiki.gentoo.org/wiki/Hardened_Gentoo for just elfutils.
But it's still failed but when i remove all the ${WARNING_FLAGS} ${HARDENING_CFLAGS} ${HARDENING_LDFLAGS} from make.conf like just use:
| Code: | CFLAGS="${COMMON_FLAGS}"
CXXFLAGS="${COMMON_FLAGS}"
LDFLAGS="${LDFLAGS} -Wl,-O2 -Wl,--as-needed" |
it works.
So what i have to add to another /etc/portage/env/unknown to make it just work for dev-libs/elfutils ?
Last edited by xo ip on Wed Nov 06, 2024 5:43 pm; edited 2 times in total |
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xo ip
n00b
Joined: 06 Nov 2024
Posts: 4
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| Posted: Wed Nov 06, 2024 3:54 pm Post subject: |
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-no-pie don't work via /etc/portage/env but removing -fPIE from HARDENING_CFLAGS works. weird.
The wiki entry is wrong ! it should be -fno-PIE and not -no-pie https://wiki.gentoo.org/wiki/Hardened_Gentoo |
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sam_
Developer
Joined: 14 Aug 2020
Posts: 1947
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| Posted: Wed Nov 06, 2024 6:28 pm Post subject: |
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| Your answer doesn't seem to explain what happened here, because the default is PIE anyway - as are the other hardening flags (so no need for you to be setting it), and the only error you pointed out was something you tried to work around it? |
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xo ip
n00b
Joined: 06 Nov 2024
Posts: 4
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| Posted: Wed Nov 06, 2024 11:04 pm Post subject: |
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hello sam_,
thank you for taking time and answering i hope i can explain it a bit more:
Make.conf | Code: | CC="clang"
CPP="clang-cpp" # necessary for xorg-server and possibly other packages
CXX="clang++"
AR="llvm-ar"
NM="llvm-nm"
RANLIB="llvm-ranlib"
WARNING_FLAGS="-Werror=odr -Werror=strict-aliasing"
HARDENING_CFLAGS="-fPIC -fPIE -fstack-clash-protection -fstack-protector-strong -fcf-protection=full -D_FORTIFY_SOURCE=2"
HARDENING_LDFLAGS="-Wl,-z,relro,-z,now -pie"
COMMON_FLAGS="-march=native -O2 -pipe -flto=thin ${WARNING_FLAGS}"
CFLAGS="${COMMON_FLAGS} ${HARDENING_CFLAGS}"
CXXFLAGS="${COMMON_FLAGS} ${HARDENING_CFLAGS}"
LDFLAGS="${LDFLAGS} -Wl,-O2 -Wl,--as-needed ${HARDENING_LDFLAGS}"
FEATURE="cgroup ipc-sandbox network-sandbox noman nodoc noinfo" |
I can only compile dev-libs/elfutils when i add nopie (/etc/portage/env/nopie) to /etc/portage/package.env elfutils.
/etc/portage/env/nopie
| Code: | CFLAGS="${CFLAGS} -fno-PIE"
CXXFLAGS="${CXXFLAGS} -fno-PIE"
LDFLAGS="${LDFLAGS} -fno-PIE" |
If compile without nopie i get the following error:
| Code: | >>> Emerging (1 of 1) dev-libs/elfutils-0.191-r2::gentoo
* elfutils-0.191.tar.bz2 BLAKE2B SHA512 size ;-) ... [ ok ]
>>> Unpacking source...
>>> Unpacking elfutils-0.191.tar.bz2 to /var/tmp/portage/dev-libs/elfutils-0.191-r2/work
>>> Source unpacked in /var/tmp/portage/dev-libs/elfutils-0.191-r2/work
>>> Preparing source in /var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191 ...
* Applying elfutils-0.189-musl-aarch64-regs.patch ... [ ok ]
* Applying elfutils-0.191-musl-macros.patch ... [ ok ]
* Applying elfutils-0.191-avoid-overriding-libcxx-system-header.patch ... [ ok ]
* Running eautoreconf in '/var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191' ...
* Running 'autopoint --force' ... [ ok ]
* Running 'aclocal -I m4 --system-acdir=/var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/aclocal' ... [ ok ]
* Running 'autoconf --force' ... [ ok ]
* Running 'autoheader --force' ... [ ok ]
* Running 'automake --add-missing --copy --force-missing' ... [ ok ]
* Running elibtoolize in: elfutils-0.191/
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191 ...
* abi_x86_64.amd64: running multilib-minimal_abi_src_configure
* econf: updating elfutils-0.191/config/config.guess with /usr/share/gnuconfig/config.guess
* econf: updating elfutils-0.191/config/config.sub with /usr/share/gnuconfig/config.sub
* econf: updating elfutils-0.191/config.guess with /usr/share/gnuconfig/config.guess
* econf: updating elfutils-0.191/config.sub with /usr/share/gnuconfig/config.sub
/var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191/configure --prefix=/usr --build=x86_64-pc-linux-musl --host=x86_64-pc-linux-musl --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --datarootdir=/usr/share --disable-dependency-tracking --disable-silent-rules --docdir=/usr/share/doc/elfutils-0.191-r2 --htmldir=/usr/share/doc/elfutils-0.191-r2/html --libdir=/usr/lib --enable-nls --disable-debuginfod --disable-libdebuginfod --disable-valgrind-annotations --disable-thread-safety --disable-valgrind --program-prefix=eu- --with-zlib --with-bzlib --without-lzma --with-zstd
checking for a BSD-compatible install... /usr/lib/portage/python3.12/ebuild-helpers/xattr/install -c
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether make supports nested variables... (cached) yes
checking build system type... x86_64-pc-linux-musl
checking host system type... x86_64-pc-linux-musl
checking for x86_64-pc-linux-musl-gcc... clang
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether clang accepts -g... yes
checking for clang option to enable C11 features... none needed
checking whether clang understands -c and -o together... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of clang... none
checking whether the compiler supports GNU C++... yes
checking whether clang++ accepts -g... yes
checking for clang++ option to enable C++11 features... none needed
checking dependency style of clang++... none
checking for x86_64-pc-linux-musl-ranlib... llvm-ranlib
checking for bison... bison -y
checking for flex... flex
checking for lex output file root... lex.yy
checking for lex library... none needed
checking whether yytext is a pointer... yes
checking for x86_64-pc-linux-musl-ar... llvm-ar
checking the archiver (llvm-ar) interface... ar
checking for x86_64-pc-linux-musl-readelf... llvm-readelf
checking for x86_64-pc-linux-musl-nm... llvm-nm
checking whether gcc supports __attribute__((visibility()))... yes
checking whether gcc supports __attribute__((gcc_struct))... no
checking whether gcc supports -fPIC... yes
checking whether gcc supports -fPIE... yes
checking whether gcc supports -Wl,-z,defs... yes
checking whether the compiler generates build-ids... no
configure: WARNING: compiler doesn't generate build-id by default
checking whether gcc supports -Wl,-z,relro... yes
checking for __thread support... no
configure: error: __thread support required
!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191-abi_x86_64.amd64/config.log
* ERROR: dev-libs/elfutils-0.191-r2::gentoo failed (configure phase):
* econf failed
*
* Call stack:
* ebuild.sh, line 136: Called src_configure
* environment, line 2507: Called multilib-minimal_src_configure
* environment, line 1853: Called multilib_foreach_abi 'multilib-minimal_abi_src_configure'
* environment, line 2103: Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
* environment, line 1808: Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
* environment, line 1806: Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_configure'
* environment, line 575: Called multilib-minimal_abi_src_configure
* environment, line 1847: Called multilib_src_configure
* environment, line 2328: Called econf '--enable-nls' '--disable-debuginfod' '--disable-libdebuginfod' '--disable-valgrind-annotations' '--disable-thread-safety' '--disable-valgrind' '--program-prefix=eu-' '--with-zlib' '--with-bzlib' '--without-lzma' '--with-zstd'
* phase-helpers.sh, line 647: Called __helpers_die 'econf failed'
* isolated-functions.sh, line 112: Called die
* The specific snippet of code:
* die "$@"
*
* If you need support, post the output of `emerge --info '=dev-libs/elfutils-0.191-r2::gentoo'`,
* the complete build log and the output of `emerge -pqv '=dev-libs/elfutils-0.191-r2::gentoo'`.
* The complete build log is located at '/var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/environment'.
* Working directory: '/var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191-abi_x86_64.amd64'
* S: '/var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191'
>>> Failed to emerge dev-libs/elfutils-0.191-r2, Log file:
>>> '/var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/build.log'
* Messages for package dev-libs/elfutils-0.191-r2:
* ERROR: dev-libs/elfutils-0.191-r2::gentoo failed (configure phase):
* econf failed
*
* Call stack:
* ebuild.sh, line 136: Called src_configure
* environment, line 2507: Called multilib-minimal_src_configure
* environment, line 1853: Called multilib_foreach_abi 'multilib-minimal_abi_src_configure'
* environment, line 2103: Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
* environment, line 1808: Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_configure'
* environment, line 1806: Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_configure'
* environment, line 575: Called multilib-minimal_abi_src_configure
* environment, line 1847: Called multilib_src_configure
* environment, line 2328: Called econf '--enable-nls' '--disable-debuginfod' '--disable-libdebuginfod' '--disable-valgrind-annotations' '--disable-thread-safety' '--disable-valgrind' '--program-prefix=eu-' '--with-zlib' '--with-bzlib' '--without-lzma' '--with-zstd'
* phase-helpers.sh, line 647: Called __helpers_die 'econf failed'
* isolated-functions.sh, line 112: Called die
* The specific snippet of code:
* die "$@"
*
* If you need support, post the output of `emerge --info '=dev-libs/elfutils-0.191-r2::gentoo'`,
* the complete build log and the output of `emerge -pqv '=dev-libs/elfutils-0.191-r2::gentoo'`.
* The complete build log is located at '/var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/environment'.
* Working directory: '/var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191-abi_x86_64.amd64'
* S: '/var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191' |
That i don't have to add hardening flag manual is new to me because if i don't add these flags in compiler log there a missing.
Example tmux here is a compiler output line without the hardend flags vars in make.conf.
| Code: | | clang -std=gnu99 -march=native -O2 -pipe -flto=thin -Werror=odr -Werror=strict-aliasing -Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -Wl,--as-needed -Wl,-O2 -Wl,--as-needed -o tmux alerts.o arguments.o attributes.o cfg.o client.o cmd-attach-session.o cmd-bind-key.o cmd-break-pane.o cmd-capture-pane.o cmd-choose-tree.o cmd-command-prompt.o cmd-confirm-before.o cmd-copy-mode.o cmd-detach-client.o cmd-display-menu.o cmd-display-message.o cmd-display-panes.o cmd-find-window.o cmd-find.o cmd-if-shell.o cmd-join-pane.o cmd-kill-pane.o cmd-kill-server.o cmd-kill-session.o cmd-kill-window.o cmd-list-buffers.o cmd-list-clients.o cmd-list-keys.o cmd-list-panes.o cmd-list-sessions.o cmd-list-windows.o cmd-load-buffer.o cmd-lock-server.o cmd-move-window.o cmd-new-session.o cmd-new-window.o cmd-parse.o cmd-paste-buffer.o cmd-pipe-pane.o cmd-queue.o cmd-refresh-client.o cmd-rename-session.o cmd-rename-window.o cmd-resize-pane.o cmd-resize-window.o cmd-respawn-pane.o cmd-respawn-window.o cmd-rotate-window.o cmd-run-shell.o cmd-save-buffer.o cmd-select-layout.o cmd-select-pane.o cmd-select-window.o cmd-send-keys.o cmd-server-access.o cmd-set-buffer.o cmd-set-environment.o cmd-set-option.o cmd-show-environment.o cmd-show-messages.o cmd-show-options.o cmd-show-prompt-history.o cmd-source-file.o cmd-split-window.o cmd-swap-pane.o cmd-swap-window.o cmd-switch-client.o cmd-unbind-key.o cmd-wait-for.o cmd.o colour.o control-notify.o control.o environ.o file.o format.o format-draw.o grid-reader.o grid-view.o grid.o hyperlinks.o input-keys.o input.o job.o key-bindings.o key-string.o layout-custom.o layout-set.o layout.o log.o menu.o mode-tree.o names.o notify.o options-table.o options.o paste.o popup.o proc.o regsub.o resize.o screen-redraw.o screen-write.o screen.o server-acl.o server-client.o server-fn.o server.o session.o spawn.o status.o style.o tmux.o tty-acs.o tty-features.o tty-keys.o tty-term.o tty.o utf8-combined.o utf8.o window-buffer.o window-client.o window-clock.o window-copy.o window-customize.o window-tree.o window.o xmalloc.o osdep-linux.o compat/closefrom.o compat/freezero.o compat/getdtablecount.o compat/getpeereid.o compat/getprogname.o compat/htonll.o compat/ntohll.o compat/setproctitle.o compat/strtonum.o compat/recallocarray.o compat/getopt.o compat/base64.o compat/imsg.o compat/imsg-buffer.o compat/vis.o compat/unvis.o compat/fdforkpty.o -lxnet -ltinfo -levent_core -lm |
And this it the output with hardened flags:
| Code: | | clang -std=gnu99 -march=native -O2 -pipe -flto=thin -Werror=odr -Werror=strict-aliasing -fPIC -fPIE -fstack-clash-protection -fstack-protector-strong -fcf-protection=full -D_FORTIFY_SOURCE=2 -Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -Wl,--as-needed -Wl,-O2 -Wl,--as-needed -Wl,-z,relro,-z,now -pie -o tmux alerts.o arguments.o attributes.o cfg.o client.o cmd-attach-session.o cmd-bind-key.o cmd-break-pane.o cmd-capture-pane.o cmd-choose-tree.o cmd-command-prompt.o cmd-confirm-before.o cmd-copy-mode.o cmd-detach-client.o cmd-display-menu.o cmd-display-message.o cmd-display-panes.o cmd-find-window.o cmd-find.o cmd-if-shell.o cmd-join-pane.o cmd-kill-pane.o cmd-kill-server.o cmd-kill-session.o cmd-kill-window.o cmd-list-buffers.o cmd-list-clients.o cmd-list-keys.o cmd-list-panes.o cmd-list-sessions.o cmd-list-windows.o cmd-load-buffer.o cmd-lock-server.o cmd-move-window.o cmd-new-session.o cmd-new-window.o cmd-parse.o cmd-paste-buffer.o cmd-pipe-pane.o cmd-queue.o cmd-refresh-client.o cmd-rename-session.o cmd-rename-window.o cmd-resize-pane.o cmd-resize-window.o cmd-respawn-pane.o cmd-respawn-window.o cmd-rotate-window.o cmd-run-shell.o cmd-save-buffer.o cmd-select-layout.o cmd-select-pane.o cmd-select-window.o cmd-send-keys.o cmd-server-access.o cmd-set-buffer.o cmd-set-environment.o cmd-set-option.o cmd-show-environment.o cmd-show-messages.o cmd-show-options.o cmd-show-prompt-history.o cmd-source-file.o cmd-split-window.o cmd-swap-pane.o cmd-swap-window.o cmd-switch-client.o cmd-unbind-key.o cmd-wait-for.o cmd.o colour.o control-notify.o control.o environ.o file.o format.o format-draw.o grid-reader.o grid-view.o grid.o hyperlinks.o input-keys.o input.o job.o key-bindings.o key-string.o layout-custom.o layout-set.o layout.o log.o menu.o mode-tree.o names.o notify.o options-table.o options.o paste.o popup.o proc.o regsub.o resize.o screen-redraw.o screen-write.o screen.o server-acl.o server-client.o server-fn.o server.o session.o spawn.o status.o style.o tmux.o tty-acs.o tty-features.o tty-keys.o tty-term.o tty.o utf8-combined.o utf8.o window-buffer.o window-client.o window-clock.o window-copy.o window-customize.o window-tree.o window.o xmalloc.o osdep-linux.o compat/closefrom.o compat/freezero.o compat/getdtablecount.o compat/getpeereid.o compat/getprogname.o compat/htonll.o compat/ntohll.o compat/setproctitle.o compat/strtonum.o compat/recallocarray.o compat/getopt.o compat/base64.o compat/imsg.o compat/imsg-buffer.o compat/vis.o compat/unvis.o compat/fdforkpty.o -lxnet -ltinfo -levent_core -lm |
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GDH-gentoo
Veteran
Joined: 20 Jul 2019
Posts: 1681
Location: South America
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| Posted: Wed Nov 06, 2024 11:35 pm Post subject: |
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| xo ip wrote: | | Code: | >>> Configuring source in /var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191 ...
...
checking for __thread support... no
configure: error: __thread support required
!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191-abi_x86_64.amd64/config.log |
|
Check in that file what happened with the configure script's test of __thread support.
_________________
| NeddySeagoon wrote: | I'm not a witch, I'm a retired electronics engineer  |
| Ionen wrote: | | As a packager I just don't want things to get messier with weird build systems and multiple toolchains requirements though |
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xo ip
n00b
Joined: 06 Nov 2024
Posts: 4
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| Posted: Thu Nov 07, 2024 12:22 am Post subject: |
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/var/tmp/portage/dev-libs/elfutils-0.191-r2/work/elfutils-0.191-abi_x86_64.amd64/config.log | Code: | configure:7148: checking for __thread support
configure:7173: clang -o conftest -fPIC -march=native -O2 -pipe -flto=thin -Werror=odr -Werror=strict-aliasing -fPIC -fPIE -fstack-clash-protection -fstack-protector-strong -fcf-protection=full -D_FORTIFY_SOURCE=2 -shared -Wl,-z,defs -Wl,-z,relro -Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -Wl,--as-needed -Wl,-O2 -Wl,--as-needed -Wl,-z,relro,-z,now -pie -Wl,--build-id conftest.c >&5
clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
ld.lld: error: relocation R_X86_64_TPOFF32 against a cannot be used with -shared
>>> defined in /var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/conftest.lto.conftest-04a091.o
>>> referenced by conftest.c
>>> /var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/conftest.lto.conftest-04a091.o:(foo)
ld.lld: error: relocation R_X86_64_TPOFF32 against a cannot be used with -shared
>>> defined in /var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/conftest.lto.conftest-04a091.o
>>> referenced by conftest.c
>>> /var/tmp/portage/dev-libs/elfutils-0.191-r2/temp/conftest.lto.conftest-04a091.o:(main)
clang: error: linker command failed with exit code 1 (use -v to see invocation)
configure:7173: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "elfutils"
| #define PACKAGE_TARNAME "elfutils"
| #define PACKAGE_VERSION "0.191"
| #define PACKAGE_STRING "elfutils 0.191"
| #define PACKAGE_BUGREPORT "https://sourceware.org/bugzilla"
| #define PACKAGE_URL "http://elfutils.org/"
| #define PACKAGE "elfutils"
| #define VERSION "0.191"
| #define DEFAULT_AR_DETERMINISTIC false
| #define YYTEXT_POINTER 1
| #define HAVE_VISIBILITY 1
| /* end confdefs.h. */
| #include <stdlib.h>
| #undef __thread
| static __thread int a; int foo (int b) { return a + b; }
| int
| main (void)
| {
| exit (foo (0));
| ;
| return 0;
| }
configure:7186: result: no
configure:7190: error: __thread support required |
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