Great news on another DRLVM port! Having a common test suite of VM unit tests would be useful for MRP [1], is there/could we create one under Harmony? I'm thinking of tests like all the integer/long divide corner cases and floating point remainder. I'd love to know a test case where Intel's partial remainder actually needs to go around more than once to produce the correct result.
Regards, Ian [1] http://mrp.codehaus.org/ 2009/12/14 Christopher Sabol <csa...@gmail.com>: > For what's its worth, on MIPS it did some hacking to validate the basic ALU > operations before moving on to get the standard classes to initialize. > > If you look up the MIPS patch that Charles sent out, I believe it still > contains my "SIMPLE_START" define hack. That define basically causes the > DRLVM class initialization logic to not run a bunch of the standard > initialization logic. I haven't gotten around to pulling it out yet... > > Anyhow, I've also attached the simple kernel.jar and class files that > basically do a number of unit tests in the java.lang.Object() constructor. > When combined with SIMPLE_START, you can validate the generated assembly and > output without having to have everything working. There are a number of > static native methods that the classes use to print output information, you > can also get the implementation for those from the MIPS patch as well. > > Other than that I was using gdb a bunch and had the compile tracing turned > on to validate the assembly. I was generally running drlvm with the > following command line: > > java -Xem:jet -verbose -Xtrace:vm.core.init -Xtrace:init -Xtrace:em > -Xtrace:invoke -Xtrace:compile -Xtrace:harmonyvm -Xtrace:class > -Xtrace:natives -Xdumpstubs -XX:jit.JET.arg.log=ct,sum,cg,layout,code > -Xtrace:jitrino -Xtrace:vm.stack -Xtrace:exn -Xtrace:vm.helpers -jar dummy > > Assuming you are running big endian, you may want to pick up the ENDIAN > changes from the MIPS patch, since those will be needed and are a pain to > find. > > -Chris > > On Mon, Dec 14, 2009 at 9:13 AM, Egor Pasko <egor.pa...@gmail.com> wrote: >> >> On the 0x687 day of Apache Harmony pillow wrote: >> > Hi all: >> > >> > We are new in Harmony porting work. >> > >> > Now we want to port harmony DRLVM's JET to Sparc. We have implemented >> > encoder and Lil compiler for this >> >> wow, that's cool! what a surprise! >> >> > platform and go to code generation phase. >> > >> > We want some advice that how to debug here easily. >> >> GDB/DDD debugger should work fine on linux. Do you have some specific >> problems to list here? >> >> > If we want to run a HelloWorld program out, is it necessary to >> > pass all library classes compilation with JET first? >> >> Yes, absolutely. Hello World is written mostly in java, you will need >> to compile a fair bunch of methods to run HelloWorld. >> >> -- >> Egor Pasko >> > >
