Thanks everyone for all your help! I think I have a way forward then. Much appreciated! C On Wed, Jun 5, 2019, 6:24 PM Rich Felker wrote: > On Wed, Jun 05, 2019 at 05:37:49PM -0600, tenspd137 . wrote: > > bummer.... Hmm - I wonder if an i686 cross compiler would work? > > Yes, you can do that. It's just that gcc's multilib dir layout is not > compatible with musl -- it assumes library headers can be shared > between 32- and 64-bit versions of "the same" arch rather than > treating them as completely separate things. > > Rich > > > > On Wed, Jun 5, 2019 at 5:34 PM Michael Everitt > wrote: > > > > > > Musl doesn't support multilib ... :] fyi > > > > > > On 06/06/19 00:32, tenspd137 . wrote: > > > > Quick question - anyone know how to make a crossdev crosscompiler > > > > multilib so I can use -m32 when I compile? > > > > > > > > Thanks! > > > > > > > > On Wed, Jun 5, 2019 at 5:09 PM tenspd137 . > wrote: > > > >> I probably don't fully understand how it works. In > > > >> /etc/x86_64-pc-linux-musl/etc.portage/make.conf, march is not > > > >> specified. It is specified in /etc/portage/make.conf. When I > removed > > > >> it from there, things worked. Then I just put it back after using > > > >> crossdev to make x86_64-pc-linux-musl-*. > > > >> > > > >> Either way, loads of fun :) > > > >> > > > >> Thanks! > > > >> > > > >> -C > > > >> > > > >> On Wed, Jun 5, 2019 at 3:56 PM Michael Everitt > wrote: > > > >>> In your /usr/${CTARGET}/etc/portage/make.conf you can set > appropriate > > > >>> target flags there. But using 'march=native' is going to catch you > out a > > > >>> lot cross-compiling anything ... :) At least if you've got it set > to > > > >>> something, you're going to see errors that point immediately to > your CFLAGS > > > >>> when/if it goes wrong! > > > >>> > > > >>> Michael. > > > >>> > > > >>> On 05/06/19 22:27, tenspd137 . wrote: > > > >>>> Thanks! That was indeed the problem. I had march=native for all > > > >>>> portage related stuff set, and my guess is that crossdev read > that to > > > >>>> start. I removed that, reran the crossdev tool to buiild the > cross > > > >>>> toolchain, and can now build static binaries that run on different > > > >>>> systems. > > > >>>> > > > >>>> Much appreciated! > > > >>>> > > > >>>> -C > > > >>>> > > > >>>> On Wed, Jun 5, 2019 at 2:07 PM Rich Felker > wrote: > > > >>>>> On Wed, Jun 05, 2019 at 01:53:58PM -0600, tenspd137 . wrote: > > > >>>>>> Sure - > > > >>>>>> > > > >>>>>> strace -d -v ./a.out: > > > >>>>>> strace: ptrace_setoptions = 0x51 > > > >>>>>> strace: new tcb for pid 26302, active tcbs:1 > > > >>>>>> strace: [wait(0x80137f) = 26302] > WIFSTOPPED,sig=SIGSTOP,EVENT_STOP (128) > > > >>>>>> strace: pid 26302 has TCB_STARTUP, initializing it > > > >>>>>> strace: [wait(0x80057f) = 26302] > WIFSTOPPED,sig=SIGTRAP,EVENT_STOP (128) > > > >>>>>> strace: [wait(0x00127f) = 26302] WIFSTOPPED,sig=SIGCONT > > > >>>>>> strace: [wait(0x00857f) = 26302] WIFSTOPPED,sig=133 > > > >>>>>> execve("./a.out", ["./a.out"], ["SSH_CONNECTION=15.86.136.27 > 5196"..., > > > >>>>>> "LANG=en_US.UTF-8", "XDG_SESSION_ID=41", "USER=dayd", > > > >>>>>> "PWD=/home/dayd/projects/musl-tes"..., "HOME=/home/dayd", > > > >>>>>> "SSH_CLIENT=xx.xxx.xxx.xx 51960 22", > "CCACHE_DIR=/ssd/dayd/.ccache", > > > >>>>>> "VMWARE_USE_SHIPPED_GTK=yes", > "XDG_DATA_DIRS=/usr/local/share:/"..., > > > >>>>>> "USECCACHE=ON", "SSH_TTY=/dev/pts/2", "MAIL=/var/mail/dayd", > > > >>>>>> "TERM=rxvt-unicode-256color", "SHELL=/bin/bash", "SHLVL=1", > > > >>>>>> "PYTHONPATH=:/home/dayd/projects/"..., "LOGNAME=dayd", > > > >>>>>> "DBUS_SESSION_BUS_ADDRESS=unix:pa"..., > > > >>>>>> "XDG_RUNTIME_DIR=/run/user/6686", > > > >>>>>> "PATH=/usr/lib/ccache/bin/:/usr/l"..., "USEDISTCC=OFF", > > > >>>>>> "_=/usr/bin/strace", "OLDPWD=/home/dayd/projects"]strace: > > > >>>>>> [wait(0x04057f) = 26302] WIFSTOPPED,sig=SIGTRAP,EVENT_EXEC (4) > > > >>>>>> strace: [wait(0x00857f) = 26302] WIFSTOPPED,sig=133 > > > >>>>>> ) = 0 > > > >>>>>> strace: [wait(0x00047f) = 26302] WIFSTOPPED,sig=SIGILL > > > >>>>>> --- SIGILL {si_signo=SIGILL, si_code=ILL_ILLOPN, > si_addr=0x40169e} --- > > > >>>>>> strace: [wait(0x06057f) = 26302] > WIFSTOPPED,sig=SIGTRAP,EVENT_EXIT (6) > > > >>>>>> strace: [wait(0x000084) = 26302] WIFSIGNALED,core,sig=SIGILL > > > >>>>>> +++ killed by SIGILL (core dumped) +++ > > > >>>>>> strace: dropped tcb for pid 26302, 0 remain > > > >>>>>> Illegal instruction (core dumped) > > > >>>>>> > ****************************************************************************************** > > > >>>>>> (gdb) bt > > > >>>>>> #0 0x00000000004016ae in __copy_tls () > > > >>>>>> #1 0x0000000000000000 in ?? () > > > >>>>>> > ***************************************************************************************** > > > >>>>>> > > > >>>>>> (gdb) disassemble > > > >>>>>> Dump of assembler code for function __copy_tls: > > > >>>>>> 0x0000000000401680 <+0>: push %r13 > > > >>>>>> 0x0000000000401682 <+2>: mov %rdi,%r13 > > > >>>>>> 0x0000000000401685 <+5>: push %r12 > > > >>>>>> 0x0000000000401687 <+7>: push %rbp > > > >>>>>> 0x0000000000401688 <+8>: push %rbx > > > >>>>>> 0x0000000000401689 <+9>: sub $0x8,%rsp > > > >>>>>> 0x000000000040168d <+13>: mov 0x410c(%rip),%rax > # > > > >>>>>> 0x4057a0 <__libc+32> > > > >>>>>> 0x0000000000401694 <+20>: mov 0x410d(%rip),%rcx > # > > > >>>>>> 0x4057a8 <__libc+40> > > > >>>>>> 0x000000000040169b <+27>: mov 0x40f6(%rip),%rbx > # > > > >>>>>> 0x405798 <__libc+24> > > > >>>>>> 0x00000000004016a2 <+34>: lea -0xe0(%rdi,%rax,1),%rax > > > >>>>>> 0x00000000004016aa <+42>: lea -0x1(%rcx),%r12 > > > >>>>>> => 0x00000000004016ae <+46>: andn %rax,%r12,%r12 > > > >>>>> This instruction, andn, is not in the base x86_64 ISA. It's part > of > > > >>>>> the BMI1 extension: > > > >>>>> > > > >>>>> > https://en.wikipedia.org/wiki/Bit_Manipulation_Instruction_Sets#BMI1_(Bit_Manipulation_Instruction_Set_1) > > > >>>>> > > > >>>>> Apparently Gentoo is providing cross compilers that default to > > > >>>>> producing "native ISA level" code for the host, rather than > baseline > > > >>>>> ISA for the target. But: > > > >>>>> > > > >>>>>> as a bonus (I thought this might also help): > > > >>>>>> (%:~/projects/musl-test)┌- x86_64-pc-linux-musl-gcc -v -static > -O0 -g > > > >>>>>> hello.c > > > >>>>>> Using built-in specs. > > > >>>>>> COLLECT_GCC=x86_64-pc-linux-musl-gcc > > > >>>>>> > COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-musl/9.1.0/lto-wrapper > > > >>>>>> Target: x86_64-pc-linux-musl > > > >>>>>> Configured with: > > > >>>>>> > /var/tmp/portage/cross-x86_64-pc-linux-musl/gcc-9.1.0/work/gcc-9.1..0/configure > > > >>>>>> --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-musl > > > >>>>>> --build=x86_64-pc-linux-gnu --prefix=/usr > > > >>>>>> > --bindir=/usr/x86_64-pc-linux-gnu/x86_64-pc-linux-musl/gcc-bin/9..1.0 > > > >>>>>> --includedir=/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/include > > > >>>>>> --datadir=/usr/share/gcc-data/x86_64-pc-linux-musl/9.1.0 > > > >>>>>> --mandir=/usr/share/gcc-data/x86_64-pc-linux-musl/9.1.0/man > > > >>>>>> --infodir=/usr/share/gcc-data/x86_64-pc-linux-musl/9.1.0/info > > > >>>>>> > --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/include/g++-v9 > > > >>>>>> > --with-python-dir=/share/gcc-data/x86_64-pc-linux-musl/9.1.0/python > > > >>>>>> --enable-languages=c,c++,fortran --enable-obsolete > --enable-secureplt > > > >>>>>> --disable-werror --with-system-zlib --enable-nls > > > >>>>>> --without-included-gettext --enable-checking=release > > > >>>>>> --with-bugurl=https://bugs.gentoo.org/ > --with-pkgversion='Gentoo 9.1.0 > > > >>>>>> p1.0' --disable-esp --enable-libstdcxx-time > > > >>>>>> --enable-poison-system-directories > > > >>>>>> --with-sysroot=/usr/x86_64-pc-linux-musl --disable-bootstrap > > > >>>>>> --enable-__cxa_atexit --disable-multilib > --with-multilib-list=m64 > > > >>>>>> --disable-altivec --disable-fixed-point --enable-targets=all > > > >>>>>> --enable-libgomp --disable-libmudflap --disable-libssp > > > >>>>>> --disable-systemtap --disable-vtable-verify --disable-libvtv > > > >>>>>> --enable-lto --without-isl --disable-libsanitizer > --enable-default-pie > > > >>>>>> --enable-default-ssp > > > >>>>>> Thread model: posix > > > >>>>>> gcc version 9.1.0 (Gentoo 9.1.0 p1.0) > > > >>>>>> COLLECT_GCC_OPTIONS='-v' '-static' '-O0' '-g' '-mtune=generic' > '-march=x86-64' > > > >>>>>> /usr/libexec/gcc/x86_64-pc-linux-musl/9.1.0/cc1 -quiet -v > hello.c > > > >>>>>> -quiet -dumpbase hello.c -mtune=generic -march=x86-64 -auxbase > hello > > > >>>>>> -g -O0 -version -o /tmp/ccoTkh38.s > > > >>>>>> GNU C17 (Gentoo 9.1.0 p1.0) version 9.1.0 (x86_64-pc-linux-musl) > > > >>>>>> compiled by GNU C version 8.3.0, GMP version 6.1.2, MPFR > version > > > >>>>>> 4.0.2, MPC version 1.1.0, isl version none > > > >>>>>> GGC heuristics: --param ggc-min-expand=100 --param > ggc-min-heapsize=131072 > > > >>>>>> ignoring nonexistent directory > "/usr/x86_64-pc-linux-musl/usr/local/include" > > > >>>>>> ignoring nonexistent directory > > > >>>>>> > "/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/../../../../x86_64-pc-linux-musl/include" > > > >>>>>> #include "..." search starts here: > > > >>>>>> #include <...> search starts here: > > > >>>>>> /usr/x86_64-pc-linux-musl/usr/include > > > >>>>>> /usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/include > > > >>>>>> End of search list. > > > >>>>>> GNU C17 (Gentoo 9.1.0 p1.0) version 9.1.0 (x86_64-pc-linux-musl) > > > >>>>>> compiled by GNU C version 8.3.0, GMP version 6.1.2, MPFR > version > > > >>>>>> 4.0.2, MPC version 1.1.0, isl version none > > > >>>>>> GGC heuristics: --param ggc-min-expand=100 --param > ggc-min-heapsize=131072 > > > >>>>>> Compiler executable checksum: a3183e5f435d1938198d432af6db159b > > > >>>>>> COLLECT_GCC_OPTIONS='-v' '-static' '-O0' '-g' '-mtune=generic' > '-march=x86-64' > > > >>>>>> /usr/libexec/gcc/x86_64-pc-linux-musl/as -v --64 -o > /tmp/ccHq7CL6..o > > > >>>>>> /tmp/ccoTkh38.s > > > >>>>>> GNU assembler version 2.32.0 (x86_64-pc-linux-musl) using BFD > version > > > >>>>>> (Gentoo 2.32 p2) 2.32.0 > > > >>>>>> > COMPILER_PATH=/usr/libexec/gcc/x86_64-pc-linux-musl/9.1.0/:/usr/libexec/gcc/x86_64-pc-linux-musl/9.1.0/:/usr/libexec/gcc/x86_64-pc-linux-musl/:/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/:/usr/lib/gcc/x86_64-pc-linux-musl/ > > > >>>>>> > LIBRARY_PATH=/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/:/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/../../../../x86_64-pc-linux-musl/lib/:/usr/x86_64-pc-linux-musl/lib/:/usr/x86_64-pc-linux-musl/usr/lib/ > > > >>>>>> COLLECT_GCC_OPTIONS='-v' '-static' '-O0' '-g' '-mtune=generic' > '-march=x86-64' > > > >>>>>> /usr/libexec/gcc/x86_64-pc-linux-musl/9.1.0/collect2 -plugin > > > >>>>>> /usr/libexec/gcc/x86_64-pc-linux-musl/9.1.0/liblto_plugin.so > > > >>>>>> > -plugin-opt=/usr/libexec/gcc/x86_64-pc-linux-musl/9.1.0/lto-wrapper > > > >>>>>> -plugin-opt=-fresolution=/tmp/ccWcifv4.res > > > >>>>>> -plugin-opt=-pass-through=-lgcc > -plugin-opt=-pass-through=-lgcc_eh > > > >>>>>> -plugin-opt=-pass-through=-lc > --sysroot=/usr/x86_64-pc-linux-musl -m > > > >>>>>> elf_x86_64 -static /usr/x86_64-pc-linux-musl/usr/lib/crt1.o > > > >>>>>> /usr/x86_64-pc-linux-musl/usr/lib/crti.o > > > >>>>>> /usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/crtbeginT.o > > > >>>>>> -L/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0 > > > >>>>>> > -L/usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/../../../../x86_64-pc-linux-musl/lib > > > >>>>>> -L/usr/x86_64-pc-linux-musl/lib > -L/usr/x86_64-pc-linux-musl/usr/lib > > > >>>>>> /tmp/ccHq7CL6.o --start-group -lgcc -lgcc_eh -lc --end-group > > > >>>>>> /usr/lib/gcc/x86_64-pc-linux-musl/9.1.0/crtend.o > > > >>>>>> /usr/x86_64-pc-linux-musl/usr/lib/crtn.o > > > >>>>>> COLLECT_GCC_OPTIONS='-v' '-static' '-O0' '-g' '-mtune=generic' > '-march=x86-64' > > > >>>>>> > > > >>>>>> mtune=generic and march=x86-64 suggests it isn't trying to do > > > >>>>>> something weird on the compile computer. > > > >>>>> Indeed, it looks like the default is right. So you probably need > to > > > >>>>> check how musl was built. Is it also a package provided by > Gentoo, and > > > >>>>> did they perhaps use -march=native even though it's being cross > > > >>>>> compiled? > > > >>>>> > > > >>>>> Rich > > > >>> > > > > > > >