Re: gcc cross-compiler for linux
Xavier Otazu [EMAIL PROTECTED] writes:
Thanks a lot for this link. Now I see that I need to use the
cross-gcc compiler.
I've never done it; I just looked it up.
I'm sure there's more information in the archives of the mailing lists,
and you can always try to consult the port maintainer.
I am using Matlab inside the linux emulator, and I nedd to create some
mex files from matlab. In order to create these mes files, matlab
needs access to a gcc compiler that produces linux elf files. I think I
cannot use the gentoo-stage3 port, because in order to use I would need
to chroot and it is not so easy from matlab. Also, when using this
compiler I should be able to acces to the linux-matlab header files,
but if I chroot to the gentoo port I won't be able to access them.
They should be inside the compat/linux tree, and therefore accessible.
I tried to install the devel/cross-gcc port, but I get errors when
compiling it.
Um, fix the errors?
I have some doubts about the wiki link you sent me:
1) What really means null-mount the home directory? I google-d some
info, but I didn't find good information. What really exactly means
corresponding entries in the passwd and shadow files are required
then?
a) man mount_nullfs
b) I would guess that /compat/linux/etc/{passwd,shadow} need to have
entries to match your /etc/master.passwd. I can't check for sure
2) What really means All you have to do is to compile the ports and
add includes and libs from the linux system your target in your
development? Do I have to include the linux headers during
devel/cross-gcc port building? Or do I have to include them when
cross-compiling my code?
Logically, I would think that would apply to compiling *your* code.
Anything that's need to build the port should be handled by the port
itself.
What options do I have to use when building the linux gcc
cross-compiler? I use
I don't know; all I can tell you is that you seem to be on the right
path here.
make TGTARCH=i386 TGTABI=linux install clean
Thanks a lot for your help
Cheers
Xavier
On Tue, 25 Nov 2008 15:04:27 -0500
Lowell Gilbert [EMAIL PROTECTED] wrote:
Xavier Otazu [EMAIL PROTECTED] writes:
I would like to compile a C++ code to be executed within the linux
emulator.
http://wiki.freebsd.org/linux-xdev
Good luck.
--
Lowell Gilbert, embedded/networking software engineer, Boston area
http://be-well.ilk.org/~lowell/
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Re: gcc cross-compiler for linux
On Wednesday 26 November 2008 18:48:39 Xavier Otazu wrote: On Tue, 25 Nov 2008 23:31:10 +0100 Tijl Coosemans [EMAIL PROTECTED] wrote: From that error message I'd say you probably need to populate /usr/local/i386-linux/include with glibc and linux kernel headers. How can I populate it with them? Manually installing them in this directory? May be the devel/cross-binutils port should do it? Is there any port that can populate it? I don't think there's a port. I'd start with a glibc-headers and kernel-headers RPM from the linux_base port you've installed. http://rpmfind.net/linux/rpm2html/search.php?query=glibc-headers http://rpmfind.net/linux/rpm2html/search.php?query=kernel-headers ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: gcc cross-compiler for linux
On Tue, 25 Nov 2008 23:31:10 +0100 Tijl Coosemans [EMAIL PROTECTED] wrote: From that error message I'd say you probably need to populate /usr/local/i386-linux/include with glibc and linux kernel headers. How can I populate it with them? Manually installing them in this directory? May be the devel/cross-binutils port should do it? Is there any port that can populate it? Thanks Xavier ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: gcc cross-compiler for linux
Xavier Otazu [EMAIL PROTECTED] writes: I would like to compile a C++ code to be executed within the linux emulator. http://wiki.freebsd.org/linux-xdev -- Lowell Gilbert, embedded/networking software engineer, Boston area http://be-well.ilk.org/~lowell/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: gcc cross-compiler for linux
Lowell, Thanks a lot for this link. Now I see that I need to use the cross-gcc compiler. I am using Matlab inside the linux emulator, and I nedd to create some mex files from matlab. In order to create these mes files, matlab needs access to a gcc compiler that produces linux elf files. I think I cannot use the gentoo-stage3 port, because in order to use I would need to chroot and it is not so easy from matlab. Also, when using this compiler I should be able to acces to the linux-matlab header files, but if I chroot to the gentoo port I won't be able to access them. I tried to install the devel/cross-gcc port, but I get errors when compiling it. I have some doubts about the wiki link you sent me: 1) What really means null-mount the home directory? I google-d some info, but I didn't find good information. What really exactly means corresponding entries in the passwd and shadow files are required then? 2) What really means All you have to do is to compile the ports and add includes and libs from the linux system your target in your development? Do I have to include the linux headers during devel/cross-gcc port building? Or do I have to include them when cross-compiling my code? What options do I have to use when building the linux gcc cross-compiler? I use make TGTARCH=i386 TGTABI=linux install clean Thanks a lot for your help Cheers Xavier On Tue, 25 Nov 2008 15:04:27 -0500 Lowell Gilbert [EMAIL PROTECTED] wrote: Xavier Otazu [EMAIL PROTECTED] writes: I would like to compile a C++ code to be executed within the linux emulator. http://wiki.freebsd.org/linux-xdev -- Lowell Gilbert, embedded/networking software engineer, Boston area http://be-well.ilk.org/~lowell/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: gcc cross-compiler for linux
On Monday 24 November 2008 18:19:23 Xavier Otazu wrote: When building, I get the following error message: /usr/ports/devel/cross-gcc/work/gcc-4.2.3/host-i386-portbld-freebsd7.1/gcc/xgcc -B/usr/ports/devel/cross-gcc/work/gcc-4.2.3/host-i386-portbld-freebsd7.1/gcc/ -B/usr/local/i386-linux/bin/ -B/usr/local/i386-linux/lib/ -isystem /usr/ports/devel/cross-gcc/work/gcc-4.2.3/host-i386-portbld-freebsd7.1/gcc -isystem /usr/local/i386-linux/include -isystem /usr/local/i386-linux/sys-include -O2 -O2 -O2 -fno-strict-aliasing -pipe -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../.././gcc -I../.././gcc/. -I../.././gcc/../include -I../.././gcc/../libcpp/include -I../.././gcc/../libdecnumber -I../libdecnumber -fexceptions -c ../.././gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o In file included from /usr/ports/devel/cross-gcc/work/gcc-4.2.3/host-i386-portbld-freebsd7.1/gcc/gthr-default.h:1, from ../.././gcc/gthr.h:114, from ../.././gcc/unwind-dw2.c:42: ../.././gcc/gthr-posix.h:43:21: error: pthread.h: No such file or directory ../.././gcc/gthr-posix.h:44:20: error: unistd.h: No such file or directory In file included from /usr/ports/devel/cross-gcc/work/gcc-4.2.3/host-i386-portbld-freebsd7.1/gcc/gthr-default.h:1, from ../.././gcc/gthr.h:114, from ../.././gcc/unwind-dw2.c:42: ../.././gcc/gthr-posix.h:46: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__gthread_key_t' ../.././gcc/gthr-posix.h:47: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__gthread_once_t' ../.././gcc/gthr-posix.h:48: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__gthread_mutex_t' ../.././gcc/gthr-posix.h:49: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__gthread_recursive_mutex_t' ../.././gcc/gthr-posix.h:92: error: 'pthread_once' undeclared here (not in a function) ../.././gcc/gthr-posix.h:93: error: 'pthread_getspecific' undeclared here (not in a function) From that error message I'd say you probably need to populate /usr/local/i386-linux/include with glibc and linux kernel headers. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
