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package/openjdk: support zero hotspot variant

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The OpenJDK package supports a non-assembler variant of the hotspot
virtual machine.  This allows archtectures which don't have hard-coded
support (which provides better performance) to still build a virtual
machine that can execute JAVA.

Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Matt Weber 2019-02-26 11:36:45 -06:00 committed by Thomas Petazzoni
parent 2ff6ee0947
commit a54194f35c
2 changed files with 17 additions and 2 deletions
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14
package/openjdk/Config.in
View File

@ -25,7 +25,8 @@ config BR2_PACKAGE_OPENJDK
select BR2_PACKAGE_ZLIB select BR2_PACKAGE_ZLIB
# make sure at least one variant is enabled # make sure at least one variant is enabled
select BR2_PACKAGE_OPENJDK_JVM_VARIANT_SERVER \ select BR2_PACKAGE_OPENJDK_JVM_VARIANT_SERVER \
if !BR2_PACKAGE_OPENJDK_JVM_VARIANT_CLIENT if !BR2_PACKAGE_OPENJDK_JVM_VARIANT_CLIENT && !BR2_PACKAGE_OPENJDK_JVM_VARIANT_ZERO && !BR2_powerpc
select BR2_PACKAGE_OPENJDK_JVM_VARIANT_ZERO if BR2_powerpc
help help
OpenJDK is a free and open-source implementation of the OpenJDK is a free and open-source implementation of the
Java Platform. Java Platform.
@ -36,14 +37,25 @@ if BR2_PACKAGE_OPENJDK
config BR2_PACKAGE_OPENJDK_JVM_VARIANT_CLIENT config BR2_PACKAGE_OPENJDK_JVM_VARIANT_CLIENT
bool "build client variant" bool "build client variant"
depends on !BR2_powerpc
help help
Quick loading, but slower run-time performance. Quick loading, but slower run-time performance.
config BR2_PACKAGE_OPENJDK_JVM_VARIANT_SERVER config BR2_PACKAGE_OPENJDK_JVM_VARIANT_SERVER
bool "build server variant" bool "build server variant"
depends on !BR2_powerpc
help help
Slower loading, but faster run-time performance. Slower loading, but faster run-time performance.
config BR2_PACKAGE_OPENJDK_JVM_VARIANT_ZERO
bool "build zero variant"
select BR2_PACKAGE_LIBFFI
help
A non-assembler variant with wide arch support, however
performance is less then client/server.
http://openjdk.java.net/projects/zero
endif endif
comment "openjdk needs X.Org" comment "openjdk needs X.Org"

5
package/openjdk/openjdk.mk
View File

@ -35,10 +35,13 @@ OPENJDK_DEPENDENCIES = \
ifeq ($(BR2_PACKAGE_OPENJDK_JVM_VARIANT_CLIENT),y) ifeq ($(BR2_PACKAGE_OPENJDK_JVM_VARIANT_CLIENT),y)
OPENJDK_JVM_VARIANTS += client OPENJDK_JVM_VARIANTS += client
endif endif
ifeq ($(BR2_PACKAGE_OPENJDK_JVM_VARIANT_SERVER),y) ifeq ($(BR2_PACKAGE_OPENJDK_JVM_VARIANT_SERVER),y)
OPENJDK_JVM_VARIANTS += server OPENJDK_JVM_VARIANTS += server
endif endif
ifeq ($(BR2_PACKAGE_OPENJDK_JVM_VARIANT_ZERO),y)
OPENJDK_JVM_VARIANTS += zero
OPENJDK_DEPENDENCIES += libffi
endif
OPENJDK_JVM_VARIANT_LIST = $(subst $(space),$(comma),$(OPENJDK_JVM_VARIANTS)) OPENJDK_JVM_VARIANT_LIST = $(subst $(space),$(comma),$(OPENJDK_JVM_VARIANTS))
# OpenJDK ignores some variables unless passed via the environment. # OpenJDK ignores some variables unless passed via the environment.