Re: Linux for JavaVM

Matthias Urlichs (smurf@noris.de)
15 Jan 1997 10:21:49 +0100

Messages sorted by: [ date ][ thread ][ subject ][ author ]
Next message: Matthias Urlichs: "Re: Patch for 2.1.20 to try: "kernel environment""
Previous message: Richard B. Johnson: "Re: arp problems with 2.1.21"

In linux.dev.kernel, article <Pine.LNX.3.95.970107173232.30178B-100000@erm6.u-strasbg.fr>,
Stephane Casset <casset@erm6.u-strasbg.fr> writes:
>
> Why translating the source to Java, just keep it in C or C++ but compile
> it for the Java VM... The important thing is to have the bytecode. I am
> wrong ?
>
Yes: you are wrong. The bytecode does NOT support such C features as
"dereference an arbitrary pointer". The Java VM is supposed to afford a
safe, "boxed", environment for arbitrary Java code snippets. You can't do
that if you would ever allow the bytecode equivalent of perfectly-legal C
code such as "*(char *)0x123456 = 0x78" to run.

-- When you don't have an education, you've got to use your brains. -- Anonymous

-- 
Matthias Urlichs         \  noris network GmbH  /  Xlink-POP Nürnberg 
Schleiermacherstraße 12   \   Linux+Internet   /   EMail: urlichs@noris.de
90491 Nürnberg (Germany)   \    Consulting+Programming+Networking+etc'ing
   PGP: 1024/4F578875   1B 89 E2 1C 43 EA 80 44  15 D2 29 CF C6 C7 E0 DE
       Click <A HREF="http://info.noris.de/~smurf/finger">here</A>.    42

Next message: Matthias Urlichs: "Re: Patch for 2.1.20 to try: "kernel environment""
Previous message: Richard B. Johnson: "Re: arp problems with 2.1.21"