Request to commit to head: Thumb 2 JIT
doko at ubuntu.com
Thu Jan 21 05:21:54 PST 2010
On 19.01.2010 18:45, ed at camswl.com wrote:
> Hi folks,
> The following patch adds a Thumb2 JIT to the ARM port. As the diffs are quite
> and may be truncated here, I have put a .gz of the diffs at
> The JIT does not build by default. The default build is still the ARM
> To build the JIT
> Edit /ports/hotspot/make/linux/makefiles/zeroshark.make and add
I tested a build based on hs14 on arm-linux-gnueabi, targeting armv7/thumb. the
build did succeed, and didn't abort yet in the testsuite.
> On non Thumb2 platforms (ie ARM arch< V7) the JIT will revert to the
interpreter. I have
> tested this on ARM V5, but have been unable to test it on ARM V4 due to lack
> (I have tested the build with gcc 4.1 so it should build on V4 platforms). If
> access to V4 hw could the try it and let me know the results.
A build on a thecus (strongarm) succeeds (Debian unstable). Currently in the jdk
build, passed the vm build. Note that all compilers shipped by Debian default to
v4 code generation.
> OK to commit?
I don't see why not. It's not enabled by default, so it should not hurt.
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