The following build-infra changesets need to be applied to hotspot to get cross-compilation working:

changeset: 3210:e78b8a52fe13
user: ohrstrom
date: Fri Mar 23 16:33:24 2012 +0100
summary: Hotspot uses the names i386,i486,i586 and i686 in

diff -r 1aea2a8b7628 -r e78b8a52fe13 make/linux/makefiles/defs.make
--- a/make/linux/makefiles/defs.make
+++ b/make/linux/makefiles/defs.make
@@ -93,7 +93,7 @@
 endif

 # i686
-ifeq ($(ARCH), i686)
+ifneq (,$(findstring $(ARCH), i686 i586))
   ARCH_DATA_MODEL = 32
   PLATFORM = linux-i586
   VM_PLATFORM = linux_i486

changeset: 3209:1aea2a8b7628
user: ohrstrom
date: Fri Mar 23 15:58:33 2012 +0100
summary: Cross compilation support.

diff -r e20c01dcf590 -r 1aea2a8b7628 make/linux/makefiles/defs.make
--- a/make/linux/makefiles/defs.make
+++ b/make/linux/makefiles/defs.make
@@ -29,12 +29,14 @@
 SLASH_JAVA ?= /java

 # Need PLATFORM (os-arch combo names) for jdk and hotspot, plus libarch name
-ARCH:=$(shell uname -m)
-PATH_SEP = :
-ifeq ($(LP64), 1)
- ARCH_DATA_MODEL ?= 64
-else
- ARCH_DATA_MODEL ?= 32
+ifndef ARCH
+ ARCH:=$(shell uname -m)
+ PATH_SEP = :
+ ifeq ($(LP64), 1)
+ ARCH_DATA_MODEL ?= 64
+ else
+ ARCH_DATA_MODEL ?= 32
+ endif
 endif

 # zero
@@ -73,7 +75,7 @@
 endif

 # x86_64
-ifeq ($(ARCH), x86_64)
+ifneq (,$(findstring $(ARCH), amd64 x86_64))
   ifeq ($(ARCH_DATA_MODEL), 64)
     ARCH_DATA_MODEL = 64
     MAKE_ARGS += LP64=1
@@ -237,5 +239,3 @@
 ADD_SA_BINARIES/zero =

 EXPORT_LIST += $(ADD_SA_BINARIES/$(HS_ARCH))
-
-

changeset: 3208:e20c01dcf590
user: ohrstrom
date: Fri Mar 23 14:10:22 2012 +0100
summary: Actual support for cross compiling the hotspot repo.

diff -r c0921b9959af -r e20c01dcf590 make/linux/makefiles/adlc.make
--- a/make/linux/makefiles/adlc.make
+++ b/make/linux/makefiles/adlc.make
@@ -109,7 +109,7 @@

 $(EXEC) : $(OBJECTS)
        @echo Making adlc
- $(QUIETLY) $(HOST.LINK_NOPROF.CXX) -o $(EXEC) $(OBJECTS)
+ $(QUIETLY) $(filter-out $(ARCHFLAG),$(HOST.LINK_NOPROF.CXX)) -o $(EXEC) $(OBJECTS)

 # Random dependencies:
 $(OBJECTS): opcodes.hpp classes.hpp adlc.hpp adlcVMDeps.hpp adlparse.hpp archDesc.hpp arena.hpp dict2.hpp filebuff.hpp form
s.hpp formsopt.hpp formssel.hpp
@@ -211,14 +211,14 @@
 $(OUTDIR)/%.o: %.cpp
        @echo Compiling $<
        $(QUIETLY) $(REMOVE_TARGET)
- $(QUIETLY) $(HOST.COMPILE.CXX) -o $@ $< $(COMPILE_DONE)
+ $(QUIETLY) $(filter-out $(ARCHFLAG),$(HOST.COMPILE.CXX)) -o $@ $< $(COMPILE_DONE)

 # Some object files are given a prefix, to disambiguate
 # them from objects of the same name built for the VM.
 $(OUTDIR)/adlc-%.o: %.cpp
        @echo Compiling $<
        $(QUIETLY) $(REMOVE_TARGET)
- $(QUIETLY) $(HOST.COMPILE.CXX) -o $@ $< $(COMPILE_DONE)
+ $(QUIETLY) $(filter-out $(ARCHFLAG),$(HOST.COMPILE.CXX)) -o $@ $< $(COMPILE_DONE)

 # #########################################################################