Compiling OpenJDK 7 on Arm

[Richard Kolb]

Hello,

I am one of the community members of AdoptOpenJDK.
I've been able to build the OpenJDK 8 on my Arm (Raspberry pi)

But since there is no configure, it seems the Makefile of 7 assumes x86.

Can anyone tell me how to compile to target Arm (zero) and specify hard
float.

thanks,
Richard.


g++ -DLINUX -D_GNU_SOURCE -DIA32
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/share/vm/prims
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/share/vm
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/share/vm/precompiled
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/cpu/x86/vm
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/os_cpu/linux_x86/vm
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/os/linux/vm
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/os/posix/vm
-I/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/share/vm/adlc
-I../generated -DASSERT -DTARGET_OS_FAMILY_linux -DTARGET_ARCH_x86
-DTARGET_ARCH_MODEL_x86_32 -DTARGET_OS_ARCH_linux_x86
-DTARGET_OS_ARCH_MODEL_linux_x86_32 -DTARGET_COMPILER_gcc -DCOMPILER2
-DCOMPILER1  -fno-rtti -fno-exceptions -D_REENTRANT -fcheck-new
-fvisibility=hidden -m32 -march=i586 -pipe -Werror -g -c -o
../generated/adfiles/adlparse.o
/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/src/share/vm/adlc/adlparse.cpp

Assembler messages:
Error: unknown architecture `i586'

Error: unrecognized option -march=i586
cc1plus: error: unrecognized command line option '-m32'
cc1plus: error: bad value (i586) for -march switch
make[6]: *** [../generated/adfiles/adlparse.o] Error 1
make[6]: Leaving directory
`/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/build/linux-arm/hotspot/outputdir/linux_i486_compiler2/product'
make[5]: *** [ad_stuff] Error 2
make[5]: Leaving directory
`/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/build/linux-arm/hotspot/outputdir/linux_i486_compiler2/product'
make[4]: *** [product] Error 2
make[4]: Leaving directory
`/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/build/linux-arm/hotspot/outputdir'
make[3]: *** [generic_build2] Error 2
make[3]: Leaving directory
`/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/make'
make[2]: *** [product] Error 2
make[2]: Leaving directory
`/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60/hotspot/make'
make[1]: *** [hotspot-build] Error 2
make[1]: Leaving directory
`/media/548da502-ebde-45c0-9ab2-de5e2431ee0b/home/jdk/jdk7u60'
make: *** [build_product_image] Error 2