June 2004 - Darwin-kernel - lists.apple.com

Re: Dummy question about CF source
by Eric Seidel 07 Jun '04

07 Jun '04

The whole CF source is not available. You are correct, there is a "lite" version distributed with Darwin. All open source projects which use CF (are supposed to) use the "lite" version only. Compiling CF-lite and replacing the CF on your Mac OS X system will do *bad* things. -eric On Jun 7, 2004, at 6:16 AM, Christoph Ndgeli wrote: Hi all, I'm sorry if this is a stupid question. If I download the CF source from Darwin and installed it but it doesn't work with OS X. It seems that it is just a 'lite' version or something like that. I think the CFPreferences Services and Stream Services are missing (and perhaps some more). Is that correct? And if so, where can I download the whole CF source? -- Regards Christoph _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Dummy question about CF source
by Christoph Nägeli 07 Jun '04

07 Jun '04

Hi all, I'm sorry if this is a stupid question. If I download the CF source from Darwin and installed it but it doesn't work with OS X. It seems that it is just a 'lite' version or something like that. I think the CFPreferences Services and Stream Services are missing (and perhaps some more). Is that correct? And if so, where can I download the whole CF source? -- Regards Christoph _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Redirecting Sockets using NKE
by Matt Jaffa 07 Jun '04

07 Jun '04

Hi, I have successfully created a NKE and I am particularily interested in the send function that I am using. In the send function I detect if the outgoing message is a GET request if so I do this: if( is a GET request) { struct sockaddr_in server; /* the information structure for the server (to be filled out) */ bzero(&server, sizeof(struct sockaddr_in)); struct in_addr s_addr; s_addr.s_addr = 2130706433; server.sin_len = sizeof(server); memcpy(&server.sin_addr, &s_addr, sizeof(struct in_addr)); server.sin_family = AF_INET; // Set the server's family server.sin_port = htons((unsigned short) 48080); /* Set the port to connect to... */ int threeerror = sodisconnect(so); printf("threeerror: %d\n", threeerror); int shuterror = soshutdown(so,2); printf("shuterror: %d\n", shuterror); //int mosterror = soclose(so); //printf("mosterror: %d\n", mosterror); int testerror = socreate(AF_INET, &so,SOCK_STREAM,0); printf("testerror: %d\n", testerror); int theerrors = soconnect(so, (struct sockaddr*)&server); printf("theerrors: %d\n", theerrors); } And then I have a daemon that is listening on 127.0.0.1 with port 48080. In the daemon it successfully gets past the accept, but spins on recv(....,...,....,....) forever. So I am assuming that in the Kernel after I have redirected the socket to my daemon, and then when the send function returns it sends that GET request instead to my daemon, where I can look at the information. But in my daemon the accept works, but it doesn't get past recv(,,,,,,,,,); What to do? thanks, Matt _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Building a cross-gdb with host=i686-pc-linux-gnu and target=powerpc-apple-darwin
by Gregor Riepl 05 Jun '04

05 Jun '04

The patch and the instructions I sent before can be found here: http://www.hta-bi.bfh.ch/~riepg/misc_cross.html _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Building a cross-gdb with host=i686-pc-linux-gnu and target=powerpc-apple-darwin
by Gregor Riepl 05 Jun '04

05 Jun '04

On Tuesday 01 June 2004 23:38, Andrew Gallatin wrote: > > Has someone done this? > > Yes, about 2 years ago. It was an ugly, nasty hacking session and > I've since thrown away the build tree, and I did not take good notes. Lucky! I was able to resolve all issues with Apple's sourcecode. Most problems were just stupid errors in the code, which I think should break compiling even on OSX... It wasn't easy to find the bug causes because of some deeply nested macros. With the attached patch and the required headers, as stated below, you should be able to compile a cross-gdb for darwin on any recent POSIX system. I couldn't fully test the functionality, but starting, loading mach-o binaries and symbol files and attaching to a remote machine work. Typing 'continue' woke up the Mac, too. I'll be using the binary now, so if someone's interested, I can give you a more detailed report later. When I've got the time, this info and the patch will be available on my homepage. Instructions: - Create a directory in /usr/include, i.e. /usr/include/darwin - Copy the following files and directories (with contents!) from an OSX system osx:/usr/include/mach -> posix:/usr/include/darwin/mach osx:/usr/include/sys/appleapiopts.h -> posix:/usr/include/darwin/sys/appleapiopts.h osx:/usr/include/architecture -> posix:/usr/include/darwin/architecture osx:/usr/include/libkern -> posix:/usr/include/darwin/libkern osx:/usr/include/mach_debug -> posix:/usr/include/darwin/mach_debug osx:/usr/include/mach-o -> posix:/usr/include/darwin/mach-o - Get and unpack gdb-309.tar.gz somewhere - Change into gdb-309/src - Apply the patch: # patch -p0 < /tmp/apple-gdb-309-cross.patch - Configure with: # CFLAGS=-I/usr/include/darwin ./configure --target=powerpc-apple-darwin - Build and install with: # make # sudo make install - This will give you powerpc-apple-darwin-gdb and a few other tools [demime 0.98b removed an attachment of type text/x-diff which had a name of apple-gdb-309-cross.patch] _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Kernel thread and signal
by Jim Magee 05 Jun '04

05 Jun '04

On Jun 4, 2004, at 10:55 AM, Justin Walker wrote: > On Jun 3, 2004, at 22:43, Ramble Leon wrote: > >> Can I send signal to a pure kernel thread (created by >> kernel_thread()(), or can kernel thread handle signal? >> I found uthread of a kernel_thread almost contain >> nothing inside. > > AFAIK, the answer is 'no' to both questions. Justin is correct. Signal recognition and handling occur in ASTs on the way back to user-space. Since a kernel thread never returns to user-space, it never executes the ASTs. --Jim [demime 0.98b removed an attachment of type application/pkcs7-signature which had a name of smime.p7s] _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Kernel thread and signal
by Justin Walker 04 Jun '04

04 Jun '04

On Jun 3, 2004, at 22:43, Ramble Leon wrote: Can I send signal to a pure kernel thread (created by kernel_thread()(), or can kernel thread handle signal? I found uthread of a kernel_thread almost contain nothing inside. AFAIK, the answer is 'no' to both questions. Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | If you're not confused, | You're not paying attention *--------------------------------------*-------------------------------* _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: SMP Safe Drivers on Mac OS X
by Sam Hart 04 Jun '04

04 Jun '04

Shawn was right, you do want to check the Device Driver list. <http://www.lists.apple.com/mailman/listinfo/darwin-drivers> However FYI the equivalent of smp_processor_id() appears to be cpu_number() S a m ------------------------------------------------------- Drawing on my fine command of language, I said nothing. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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RE: SMP Safe Drivers on Mac OS X
by Lalit Chandivade 04 Jun '04

04 Jun '04

Thanks a lot for the links. The smp_processor_id returns the CPU ID on which the current process is running. This is required to maintain the process affinity. In the driver on which I am working the code checks to see if the last interrupt was received on the current cpu. And based on this decision further processing is done. On interrupt: last_intr_cpu = store the current CPU id In some other function if (current CPU ID = last_intr_cpu) _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Kernel thread and signal
by Ramble Leon 04 Jun '04

04 Jun '04

Can I send signal to a pure kernel thread (created by kernel_thread()(), or can kernel thread handle signal? I found uthread of a kernel_thread almost contain nothing inside. __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/ _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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