armhf compile failed with "sorry, unimplemented: Thumb-1 hard-float VFP ABI"

[coderiderlin]

this failure cuz by armhf gcc compiler doesn't support cflag "-arch=armv6" option.

e@ubuntu32:~$ arm-linux-gnueabihf-gcc -static-libgcc -c -fPIC -march=armv6 -ffunction-sections -fdata-sections -I/home/e/projects/frida/build/fs-linux-armhf/include -Wall -Os -pipe -g3 test.c
test.c: In function ‘foo’:
**test.c:1:1: sorry, unimplemented: Thumb-1 hard-float VFP ABI**
 int foo() { return 0; }
 ^

it passed while remove the "-march=armv6" option.
but it turns out another error in the end:

Libraries have been installed in:
   /home/e/projects/frida/build/fs-linux-armhf/lib

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the '-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the 'LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the 'LD_RUN_PATH' environment variable
     during linking
   - use the '-Wl,-rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to '/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------
make[3]: Leaving directory '/home/e/projects/frida/build/fs-tmp-linux-armhf/libgee/gee'
make[2]: Leaving directory '/home/e/projects/frida/build/fs-tmp-linux-armhf/libgee/gee'
make[2]: Entering directory '/home/e/projects/frida/build/fs-tmp-linux-armhf/libgee'
make[3]: Entering directory '/home/e/projects/frida/build/fs-tmp-linux-armhf/libgee'
make[3]: Nothing to be done for 'install-exec-am'.
 /bin/mkdir -p '/home/e/projects/frida/build/fs-linux-armhf/lib/pkgconfig'
 /usr/bin/install -p -m 644 gee-0.8.pc '/home/e/projects/frida/build/fs-linux-armhf/lib/pkgconfig'
make[3]: Leaving directory '/home/e/projects/frida/build/fs-tmp-linux-armhf/libgee'
make[2]: Leaving directory '/home/e/projects/frida/build/fs-tmp-linux-armhf/libgee'
make[1]: Leaving directory '/home/e/projects/frida/build/fs-tmp-linux-armhf/libgee'
rm -f -r build/fs-tmp-linux-armhf/json-glib
(. build/fs-meson-env-linux-x86.rc && . build/fs-config-linux-armhf.site && python3 /home/e/projects/frida/releng/meson/meson.py --prefix $frida_prefix --libdir $frida_prefix/lib --default-library static --buildtype minsize --cross-file build/fs-linux-armhf.txt build/fs-tmp-linux-armhf/json-glib json-glib)
The Meson build system
Version: 0.41.0.dev1
Source dir: /home/e/projects/frida/json-glib
Build dir: /home/e/projects/frida/build/fs-tmp-linux-armhf/json-glib
Build type: cross build
Project name: json-glib

Meson encountered an error in file meson.build, line 1, column 0:
**Compiler arm-linux-gnueabihf-gcc can not compile programs.**
Makefile.sdk.mk:325: recipe for target 'build/fs-tmp-linux-armhf/json-glib/build.ninja' failed
make: *** [build/fs-tmp-linux-armhf/json-glib/build.ninja] Error 1

my compiler version:

Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc-cross/arm-linux-gnueabihf/5/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4' --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-5 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm --disable-libquadmath --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-armhf-cross/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-armhf-cross --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-armhf-cross --with-arch-directory=arm --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libgcj --enable-objc-gc --enable-multiarch --enable-multilib --disable-sjlj-exceptions --with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-mode=thumb --disable-werror --enable-multilib --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=arm-linux-gnueabihf --program-prefix=arm-linux-gnueabihf- --includedir=/usr/arm-linux-gnueabihf/include
Thread model: posix
gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 

[coderiderlin]

problem solved by replace "-march=armv6" to "-marm" in releng/setup-env.sh

case $host_platform in
  linux)
    case $host_arch in
      x86)
        host_arch_flags="-m32"
        host_toolprefix="/usr/bin/"
        ;;
      x86_64)
        host_arch_flags="-m64"
        host_toolprefix="/usr/bin/"
        ;;
      arm)
        host_arch_flags="-march=armv5t"
        host_toolprefix="arm-linux-gnueabi-"

        meson_host_cpu="armv5t"
        ;;
      armhf)
        host_arch_flags="-marm"
        host_toolprefix="arm-linux-gnueabihf-"

        meson_host_cpu="armv6hf"
        ;;
      mips)