[kaffe] trace bytecodes
Eduardo Melione Abreu
melione at cos.ufrj.br
Sat Apr 3 04:39:02 PST 2004
Hi,
I'm using ../kaffe/bin/java -vmdebug INT_INSTR Teste1
and the output becames in a "loop state".
There is any possibility to the INT_INSTR output's be reported only
once?
The class is quite simple.
class Teste1 {
public static void main(String[] args) {
int a, b, c, d;
a = 10;
b = 20;
c = a + b;
}
}
See the output generated:
melione at camundongo:~/javadtm/testes$ ../kaffe/bin/java -vmdebug INT_INSTR
Teste1
000: NEW
003: DUP
004: INVOKESPECIAL
000: ALOAD_0
000: ALOAD_1
000: ALOAD_2
000: ALOAD_3
001: INVOKESPECIAL
000: RETURN
004: RETURN
007: PUTSTATIC
010: RETURN
000: NEW
003: DUP
004: LDC2
007: INVOKESPECIAL
000: ALOAD_0
000: ALOAD_1
000: ALOAD_2
000: ALOAD_3
001: ALOAD_1
001: ALOAD_2
001: ALOAD_3
002: INVOKESPECIAL
000: ALOAD_0
000: ALOAD_1
000: ALOAD_2
000: ALOAD_3
001: ALOAD_1
001: ALOAD_2
001: ALOAD_3
002: INVOKESPECIAL
000: ALOAD_0
000: ALOAD_1
000: ALOAD_2
000: ALOAD_3
001: INVOKESPECIAL
000: RETURN
004: ALOAD_1
004: ALOAD_2
004: ALOAD_3
005: IFNONNULL
018: ALOAD_1
018: ALOAD_2
018: ALOAD_3
019: LDC1
021: INVOKEVIRTUAL
000: ALOAD_1
000: ALOAD_2
000: ALOAD_3
001: ALOAD_0
001: ALOAD_1
001: ALOAD_2
001: ALOAD_3
002: IF_ACMPNE
... and so on...
It never stops!!
Thanks!
Eduardo.
More information about the kaffe
mailing list