OpenJDK 1.7 on OS/X 32bits

[Greg Lewis]

On Sun, Dec 12, 2010 at 10:22:09AM +0100, Henri Gomez wrote:
> While building latest 32bits version of OpenJDK 1.7 on SnowLeopard in
> 32bits mode :
> 
> g++ -D_ALLBSD_SOURCE -D_GNU_SOURCE -DIA32 -DPRODUCT -I.
[snip]
> -I../generated -DHOTSPOT_RELEASE_VERSION="\"20.0-b03\""
> -DHOTSPOT_BUILD_TARGET="\"product\"" -DHOTSPOT_BUILD_USER="\"henri\""
> -DHOTSPOT_LIB_ARCH=\"i386\"
> -DJRE_RELEASE_VERSION="\"1.7.0-internal-henri_2010_12_12_10_06-b00\""
> -DHOTSPOT_VM_DISTRO="\"OpenJDK\"" -DCOMPILER2 -DCOMPILER1 -fPIC
> -fno-rtti -fno-exceptions -pthread -fcheck-new -m32 -march=i586
> -mstackrealign -pipe -O3 -fno-strict-aliasing -DVM_LITTLE_ENDIAN
> -Werror -Wpointer-arith -Wconversion -Wsign-compare    -D_XOPEN_SOURCE
> -D_DARWIN_C_SOURCE -c -o arguments.o
> /Users/henri/Documents/openjdk-osx-build-read-only/bsd-port/hotspot/src/share/vm/runtime/arguments.cpp
> cc1plus: warnings being treated as errors
> /Users/henri/Documents/openjdk-osx-build-read-only/bsd-port/hotspot/src/share/vm/runtime/arguments.cpp:
> In static member function 'static void
> Arguments::set_aggressive_opts_flags()':
> /Users/henri/Documents/openjdk-osx-build-read-only/bsd-port/hotspot/src/share/vm/runtime/arguments.cpp:1583:
> warning: format '%d' expects type 'int', but argument 3 has type
> 'intx'
[snip]
> 
> Offending line is :
> 
>     sprintf(buffer, "java.lang.Integer.IntegerCache.high="
> INTX_FORMAT, AutoBoxCacheMax);
> 
> 
> I didn't had this error on building 64bits version of VM on the same machine.

That's because the 64 bits will use 64 bit pointers by default.  IIRC, on
MacOS X with the 32 bit build pointers are still 64 bits, which is unlike
other platforms.

The problems can be seen in the definitions of INTX_FORMAT, etc. in

hotspot/src/share/vm/utilities/globalDefinitions.hpp

-- 
Greg Lewis                          Email   : glewis at eyesbeyond.com
Eyes Beyond                         Web     : http://www.eyesbeyond.com
Information Technology              FreeBSD : glewis at FreeBSD.org