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Re: [Tinycc-devel] OSX [run-time code generation]
From: |
Peter \"Firefly\" Lund |
Subject: |
Re: [Tinycc-devel] OSX [run-time code generation] |
Date: |
Mon, 21 Apr 2003 14:53:30 +0200 (MEST) |
On Mon, 21 Apr 2003, Peter "Firefly" Lund wrote:
> You will also need to insert either instructions or OS X calls to handle
> the run-time code generation (cache flushing/invalidation, perhaps also
> TLB flushing/invalidation) + you might need mprotect() or similar to tell
> OS X that the piece of memory you are generating code into should be
> marked executable.
I think these two URLs are what you want - I haven't looked, though, since
developer.apple.com went down shortly after I started looking at their
docs.
http://developer.apple.com/techpubs/mac/Processes/Processes-171.html
http://developer.apple.com/techpubs/mac/runtimehtml/RTArch-5.html
A general discussion of self-modifying code:
http://yarchive.net/comp/self_modify.html
(Mashey worked on MIPS chips then and now works on Power for IBM, Andy
Glew designed much of the PentiumPro, Dennis Ritchie dabbled a bit in C
and Unix, Anton Ertl is comaintainer of a Forth implementation)
GNU Lightning has a PPC backend that already does cache
flushing/invalidation for run-time code generation. You should be able to
steal most of that. It is the jit_flush_code() function in ppc/funcs.h.
http://ftp.gnu.org/gnu/lightning/
(There is also a savannah page but it has the same 1.0 release and an
empty CVS)
-Peter
- Re: [Tinycc-devel] CVS tags for new releases?, (continued)
- [Tinycc-devel] OSX, Steve Dekorte, 2003/04/16
- Re: [Tinycc-devel] OSX, Peter \"Firefly\" Lund, 2003/04/21
- Re: [Tinycc-devel] OSX [run-time code generation],
Peter \"Firefly\" Lund <=
- Re: [Tinycc-devel] OSX [run-time code generation], Steve Dekorte, 2003/04/22
- [Tinycc-devel] Re: PPC [run-time code generation], Steve Dekorte, 2003/04/22
- Re: [Tinycc-devel] Re: PPC [run-time code generation], Peter \"Firefly\" Lund, 2003/04/22
- Re: [Tinycc-devel] OSX, Jim Peters, 2003/04/20
- Re: [Tinycc-devel] OSX, Peter \"Firefly\" Lund, 2003/04/20
- Re: [Tinycc-devel] OSX, Steve Dekorte, 2003/04/20
- Re: [Tinycc-devel] OSX, Peter \"Firefly\" Lund, 2003/04/20
- Re: [Tinycc-devel] OSX, Steve Dekorte, 2003/04/20
- Re: [Tinycc-devel] OSX, Peter \"Firefly\" Lund, 2003/04/21
- Re: [Tinycc-devel] OSX, Steve Dekorte, 2003/04/20