[PATCH/RFC] Enable java on sh64-linux (Take 2)

[Andrew Haley <aph at redhat dot com>]

Kaz Kojima writes:
 > Hi,
 > 
 > SH custom sh-signal.h gets rid of the libjava Array_3 test failure.
 > Thanks again for suggestions.
 > 
 > The attached patch is the revised part.  New sh-signal.h is also
 > used for non SH-5 cpus and MD_FALLBACK_FRAME_STATE_FOR for them
 > is changed not to fixup pc there.  The patch is tested for non
 > SH-5 case with bootstrap and regtests on sh4-unknown-linux-gnu.
 > 
 > Now the result of libjava test for sh64-unknown-linux-gnu is:

These test results are bad.  

 > FAIL: ArrayStore execution - gij test
 > FAIL: ArrayStore execution - gij test
 > FAIL: Divide_1 execution - gij test
 > FAIL: Divide_1 execution - gij test

This points to a bad divide overflow handler.

 > FAIL: FileHandleGcTest execution - gij test
 > FAIL: FileHandleGcTest execution - gij test

Don't worry about this one.

 > FAIL: LargeFile execution - source compiled test
 > FAIL: LargeFile execution - gij test
 > FAIL: LargeFile execution - bytecode->native test
 > FAIL: LargeFile -O3 execution - source compiled test
 > FAIL: LargeFile execution - gij test
 > FAIL: LargeFile -O3 execution - bytecode->native test

Or this one.

 > FAIL: PR3096 -O3 execution - source compiled test
 > FAIL: Process_2 output - source compiled test
 > FAIL: Process_2 output - gij test
 > FAIL: Process_2 output - bytecode->native test
 > FAIL: Process_2 -O3 output - source compiled test
 > FAIL: Process_2 output - gij test
 > FAIL: Process_2 -O3 output - bytecode->native test
 > FAIL: Serialization execution - gij test
 > FAIL: Serialization execution - gij test
 > FAIL: String_overflow output - gij test
 > FAIL: String_overflow output - gij test
 > FAIL: Thread_Interrupt execution - gij test
 > FAIL: Thread_Interrupt execution - gij test
 > FAIL: Thread_Join execution - gij test
 > FAIL: Thread_Join execution - gij test
 > FAIL: Thread_Wait_2 -O3 execution - source compiled test
 > FAIL: Thread_Wait_2 -O3 execution - bytecode->native test
 > FAIL: Thread_Wait_Interrupt execution - gij test
 > FAIL: Thread_Wait_Interrupt -O3 execution - source compiled test
 > FAIL: Thread_Wait_Interrupt execution - gij test
 > FAIL: Thread_Wait_Interrupt -O3 execution - bytecode->native test

These are perhaps the thread bugs you mentioned.

 > FAIL: negzero execution - gij test
 > FAIL: negzero execution - gij test
 > FAIL: pr6388 output - gij test
 > FAIL: pr6388 output - gij test

These look like weird interpreter bugs.  Libffi problems, maybe?

 > FAIL: pr83 -O3 output - source compiled test
 > FAIL: pr83 -O3 output - bytecode->native test

Not sure about this.

Andrew.