Thank you very much for your answers. Finally I was able to add my own
PMC to Parrot to represent packet from pcap. Now I am writing packet
decoder in PIR and I run across this problem: I need to convert big
endian to little endian in PIR. In doc I found this:
http://docs.parrot.org/parrot/latest/html/docs/dev/byteorder.pod.html
but I want to avoid to call C function from PIR.
Rado
Allison Randal napsal(a):
Radovan Baranec wrote:
Hi,
I am fighting with this problem few hours. I`ve changed cpointer.pmc
and tried to test these changes. In doc stands that I should run
realclean and then Configure.pl to add new PMC to the set of built-in
PMCs. But these scripts are only in downloaded files they are not in
installed files. So what should I do? Should I change cpointer.pmc in
downloaded files or in installed files, then run realclean and then
Configure.pl from downloaded files or what? I`ve already tried both
of it with no success.
Those instructions are for adding a new PMC to the Parrot core. When
you're creating PMCs outside the core, you should create your own new
PMC instead of editing an installed PMC directly. Copy the
cpointer.pmc source file and change the name to something like
mycpointer.pmc. Edit the file to change the name in the pmclass line
and add 'dynpmc':
pmclass MyCPointer dynpmc need_ext {
/* Copy of all ATTRs and VTABLE functions. */
}
Also change every instance of the old name ("CPointer" or "CPOINTER")
to the new name (also in CamelCase or ALLCAPS).
Then you'll need a few command-line calls to build and install the
PMC, easiest in a makefile. I've attached a Makefile.in template which
you can turn into a makefile with the command (all one line):
perl /usr/local/lib/parrot/1.4.0/tools/dev/gen_makefile.pl Makefile.in
Makefile
Most of the file is just getting configuration values from Parrot. The
actual work is the final 5 lines.
Create a dump format of the PMC:
$(PMC2CD) mycpointer.pmc
Generate the C file for the PMC:
$(PMC2CC) mycpointer.pmc
Compile the C file to a dynamic object:
$(CC) -c @cc_o_...@mycpointer$(O) $(INCLUDES) $(CFLAGS)
$(LD) @ld_...@mycpointer$(LOAD_EXT) mycpointer$(O) $(LINKARGS)
Install the shared library in the dynamic extension directory:
$(CP) "mycpointer$(LOAD_EXT)" $(INSTALL_DIR)
Run 'sudo make install' (or your platform equivalent), then you can
use your new PMC. Here's a small PIR file that uses it:
.loadlib 'mycpointer'
.sub main :main
$P0 = new 'MyCPointer'
#...
.end
Allison
_______________________________________________
http://lists.parrot.org/mailman/listinfo/parrot-dev
