Solved How to cross compile port in AMD64 for ARMV7?

Phishfry said:
To set those variables on tcsh:
setenv TARGET arm
setenv TARGET_ARCH armv6
pkg install autoconf automake libtool <<<< These packages are needed to build barnyard2 <<<<
cd /usr/src
make -j3 TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} TARGET_CPUARCH=${TARGET} toolchain

make -j3 TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} TARGET_CPUARCH=${TARGET} buildenv

Entering world for armv6:arm
cd /usr/ports/security/barnyard2
make
Click to expand...

With those instruction I was able to build (without qemu emulation) for armv7 :)

Code: 
% file work/stage/usr/local/bin/entr
work/stage/usr/local/bin/entr: ELF 32-bit LSB executable, ARM, EABI5 version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, for FreeBSD 12.1, FreeBSD-style, stripped

But I cannot build programs which need m4, eg sysutils/htop or security/barnyard2:
Code: 
...
checking for gcc... cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin
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... Unable to load interpreter
configure: error: in `/usr/ports/sysutils/htop/work/htop-2.2.0':
configure: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details
===>  Script "configure" failed unexpectedly.

config.log
Code: 
...
configure:3325: checking for C compiler version
configure:3334: cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin --version >&5
FreeBSD clang version 8.0.1 (tags/RELEASE_801/final 366581) (based on LLVM 8.0.1)
Target: armv7-unknown-freebsd12.1-gnueabihf
Thread model: posix
InstalledDir: /usr/bin
configure:3345: $? = 0
configure:3334: cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin -v >&5
FreeBSD clang version 8.0.1 (tags/RELEASE_801/final 366581) (based on LLVM 8.0.1)
Target: armv7-unknown-freebsd12.1-gnueabihf
Thread model: posix
InstalledDir: /usr/bin
configure:3345: $? = 0
configure:3334: cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin -V >&5
cc: error: argument to '-V' is missing (expected 1 value)
cc: error: no input files
configure:3345: $? = 1
configure:3334: cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin -qversion >&5
cc: error: unknown argument '-qversion', did you mean '--version'?
cc: error: no input files
configure:3345: $? = 1
configure:3365: checking whether the C compiler works
configure:3387: cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin -O -pipe  -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing  -isystem /usr/local/include  -fstack-protector-strong  conftest.c -L/usr/local/lib >&5
configure:3439: result: yes
configure:3442: checking for C compiler default output file name
configure:3444: result: a.out
configure:3450: checking for suffix of executables
configure:3457: cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin -o conftest -O -pipe  -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing  -isystem /usr/local/include  -fstack-protector-strong  conftest.c -L/usr/local/lib >&5
configure:3483: result: 
configure:3513: cc -target armv7-gnueabihf-freebsd12.1 --sysroot=/usr/obj/usr/src/arm.armv7/tmp -B/usr/obj/usr/src/arm.armv7/tmp/usr/bin -o conftest -O -pipe  -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing  -isystem /usr/local/include  -fstack-protector-strong  conftest.c -L/usr/local/lib >&5
configure:3517: $? = 0
configure:3524: ./conftest
configure:3528: $? = 255
configure:3535: error: in `/usr/ports/sysutils/htop/work/htop-2.2.0':
configure:3539: error: cannot run C compiled programs.
If you meant to cross compile, use `--host'.
See `config.log' for more details
...
All required packages (m4 included) are installed on host.

I can build it with QEMU jail but that is 4x slower than native build on ARM board (110 seconds vs around 25).

How ports from FreeBSD.org for armv7 are built?
 
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