search for: mfunction

...hared mmaps get updated by write()s... no checking whether fd passing works... no configure: error: fd passing is required for Dovecot to work Which in the log corresponds to: configure:22685: ./conftest ./configure[2026]: eval: line 1: 22335: Memory fault(coredump) Appears to the option "-mfunction-return=thunk" that cause the problem, remove and no core dump. Older gccs do not have -mfunction-return. > as I have no problems in compiling dovecot and pigeonhole on my Solaris 11.3 system with gcc. The version that ships with my Solaris is 4.5.2. Strictly speaking Solaris 11 does...

.... no >> configure: error: fd passing is required for Dovecot to work >> >> Which in the log corresponds to: >> >> configure:22685: ./conftest >> ./configure[2026]: eval: line 1: 22335: Memory fault(coredump) >> >> >> Appears to the option "-mfunction-return=thunk" that cause the >> problem, remove and no core dump.? Older gccs do not have >> -mfunction-return. >> >> >> >> >> >>> as I have no problems in compiling dovecot and pigeonhole on my >>> Solaris 11.3 system with gcc. The v...

...ndbox style: seccomp_filter Host: x86_64-pc-linux-gnu Compiler: /usr/bin/gcc-8 Compiler flags: -g -O2 -pipe -Wall -Wpointer-arith -Wuninitialized -Wsign-compare -Wformat-security -Wsizeof-pointer-memaccess -Wno-pointer-sign -Wno-unused-result -fno-strict-aliasing -mfunction-return=thunk -mindirect-branch=thunk -D_FORTIFY_SOURCE=2 -ftrapv -fno-builtin-memset -fstack-protector-strong -fPIE Preprocessor flags: -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_DEFAULT_SOURCE Linker flags: -Wl,-z,retpolineplt -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -fstack-protector-stro...

On Thu, Jun 07, 2018 at 06:14:42PM -0700, PGNet Dev wrote: > On 6/7/18 6:08 PM, Darren Tucker wrote: > > Well the intent is you should be able to set CC and LD to whatever you > > want as long as they work. In this case, the OSSH_CHECK_LDFLAG_LINK > > test invokes autoconf's AC_LINK_IFELSE with uses CC not LD. I'm not > > sure what to do about it yet though. I

...her fd passing works... no configure: error: fd passing is required for Dovecot to work .... config.log shows: configure:22538: checking whether shared mmaps get updated by write()s configure:22585: gcc -o conftest -std=gnu99 -g -O2 -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -mfunction-return=thunk -mindirect-branch=thunk -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2?? conftest.c? >&5 configure:22585: $? = 0 configure:22585: ./conftest ./configure[2026]: eva...

...checking whether fd passing works... no > configure: error: fd passing is required for Dovecot to work > > Which in the log corresponds to: > > configure:22685: ./conftest > ./configure[2026]: eval: line 1: 22335: Memory fault(coredump) > > > Appears to the option "-mfunction-return=thunk" that cause the > problem, remove and no core dump.? Older gccs do not have > -mfunction-return. > > > > > >> as I have no problems in compiling dovecot and pigeonhole on my >> Solaris 11.3 system with gcc. The version that ships with my Solaris &g...

On Wed, Mar 22, 2023 at 03:59:45PM +0800, Peng Fan (OSS) wrote: > From: Peng Fan <peng.fan at nxp.com> > > "-mfunction-return=thunk -mindirect-branch-register" are only valid > for x86. So introduce compiler operation check to avoid such issues > > Fixes: 0d0ed4006127 ("tools/virtio: enable to build with retpoline") > Signed-off-by: Peng Fan <peng.fan at nxp.com> > --- > too...

On Thu, 23 Mar 2023 12:00:24 +0800, "Peng Fan (OSS)" <peng.fan at oss.nxp.com> wrote: > From: Peng Fan <peng.fan at nxp.com> > > "-mfunction-return=thunk -mindirect-branch-register" are only valid > for x86. So introduce compiler operation check to avoid such issues > > Fixes: 0d0ed4006127 ("tools/virtio: enable to build with retpoline") > Signed-off-by: Peng Fan <peng.fan at nxp.com> > --- > >...

...ng 'make check' I also saw a failure due to a segfault. It's the same crash Thore is seeing: /bin/sh ../../libtool --tag=CC --mode=link x86_64-pc-linux-gnu-gcc -std=gnu99 -O0 -g -pipe -march=native -mtune=native -ggdb -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -mfunction-return=thunk -mindirect-branch=thunk -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -module -avoid-version -Wl,-O1 -Wl,--as-needed -o libauthdb_imap.la -rpath /usr/lib64/dovecot/auth...

We recently discovered that our OpenSSH distribution binaries contain retpoline thunks. It's due to this OSSH_CHECK_CFLAG_COMPILE([-mfunction-return=thunk]) # gcc OSSH_CHECK_CFLAG_COMPILE([-mindirect-branch=thunk]) # gcc This was quite surprising because at least the GNU/Linux userspace has no provisions for retpolines. You also fail to enable -fno-plt, so you need a special linker that produces non-standard PLT stubs. (An...

On 03/01/2019 20:42, Sami Ketola wrote: > does work just fine on my solaris 11 x86 box. ... > my test system is solaris 11.3 and I have gcc 4.5.2. Old versions of gcc do not have -mfunction-return=thunk 7 and 8 have it.

On 27/09/2018 13:40, Stephan Bosch wrote: >> Address Line Code >> 00000000: DEBUG BLOCK: 3 >> 00000001: EXTENSIONS [1]: >> 00000002: vacation >> 00000004: 2: VACATION >> 00000007: 4: seconds: NUM 5 >> 00000009: Binary is corrupt. >> >> The line numbers differs and 86400 is read as 5. It is like it has

...ut-pam --without-ldap --with-zlib --with-bzlib --with-libwrap --with-libcap --without-solr --without-gssapi --without-docs --without-sia --without-pgsql --without-lucene --without-stemmer THanks libtool: link: gcc -std=gnu99 -g -O2 -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -mfunction-return=thunk -mindirect-branch=thunk -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -Wl,--as-needed -o test-lib test_lib-test-lib.o test_lib-test-array.o test_lib-test-aqueue.o test_lib-...

...ommon -MMD -U_FORTIFY_SOURCE -include ../../include/linux/kconfig.h +CFLAGS += -g -O2 -Werror -Wno-maybe-uninitialized -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -include ../../include/linux/kconfig.h -mfunction-return=thunk -fcf-protection=none -mindirect-branch-register CFLAGS += -pthread LDFLAGS += -pthread vpath %.c ../../drivers/virtio ../../drivers/vhost -- 2.25.1

...ce. The configure script works fine, but the make fails as follows: *** Warning: Linking the executable test-http-payload against the loadable module *** libssl_iostream_openssl.so is not portable! libtool: link: gcc -std=gnu99 -g -O2 -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -mfunction-return=keep -mindirect-branch=keep -Wall -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -Wl,--as-needed -o .libs/test-http-payload test-http-payload.o -Wl,--export-dynamic -L/share/CACHEDEV1_...

...GCC" = "yes" || test "$GCC" = "egcs"; then OSSH_CHECK_CFLAG_COMPILE([-Wunused-result], [-Wno-unused-result]) OSSH_CHECK_CFLAG_COMPILE([-fno-strict-aliasing]) if test "x$use_toolchain_hardening" = "x1"; then + OSSH_CHECK_CFLAG_COMPILE([-mfunction-return=thunk]) # gcc + OSSH_CHECK_CFLAG_COMPILE([-mindirect-branch=thunk]) # gcc + OSSH_CHECK_CFLAG_COMPILE([-mretpoline]) # clang + OSSH_CHECK_CFLAG_LINK([-z retpolineplt]) # clang OSSH_CHECK_CFLAG_COMPILE([-D_FORTIFY_SOURCE=2]) OSSH_CHECK_LDFLAG_LINK([-Wl,-z,relro]) OSSH_CHECK_LDFLAG_LINK([...

...-with-bzlib --with-libwrap --with-libcap --without-solr > --without-gssapi --without-docs --without-sia --without-pgsql > --without-lucene --without-stemmer > > THanks > > libtool: link: gcc -std=gnu99 -g -O2 -fstack-protector-strong > -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -mfunction-return=thunk > -mindirect-branch=thunk -Wall -W -Wmissing-prototypes > -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2 > -Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 > -Wl,--as-needed -o test-lib test_lib-test-lib.o test_lib-test-array.o > test_li...

hi On 6/7/18 4:03 PM, Darren Tucker wrote: > On 8 June 2018 at 07:09, PGNet Dev <pgnet.dev at gmail.com> wrote: >> Verifying a report I just got pinged about, building vanilla openssh 7.7p1 on linux configures ok, but fails build around 'retpoline' > [...] >> Should the retpoline flag be getting added? If so, what's needed to make LD happy with it? > >

One difference I notice is that in your failing example you are invoking /usr/bin/ld directly to link: /usr/bin/ld -o ssh ssh.o readconf.o clientloop.o sshtty.o sshconnect.o sshconnect2.o mux.o -L. -Lopenbsd-compat/ -Wl,-z,retpolineplt -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack -fstack-protector-strong -pie -lssh -lopenbsd-compat -lutil -lz -lcrypt -lresolv whereas my example is

On 8 June 2018 at 10:52, PGNet Dev <pgnet.dev at gmail.com> wrote: [...] > So, there's a problem for OpenSSH build with spec'ing LD=/usr/bin/ld ? in this particular case, apparently yes. not generally, though. [...] > What's *intended* re: openssh? Support for LD=ld or only =gcc, or undef'd ? Well the intent is you should be able to set CC and LD to whatever you