June 2007 - Darwin-dev - lists.apple.com

double-clicking a file
by Roland Silver 14 Jun '07

14 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… How is it determined what application is opened when a file is double- clicked? --Roland Silver <rollos(a)kitcarson.net> This email sent to site_archiver(a)lists.apple.com

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Re: compiling cctools
by Martin Costabel 13 Jun '07

13 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 1.5.0.12 (Macintosh/20070509) I have to correct myself. Martin Costabel wrote: [] -- Martin _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… The cctools package in Fink does the following This is rather the "cctools-extra" package that installs only some parts of cctools that Apple does not include with the xcode tools. The actual cctools do not need to be upgraded in order to compile gcc42, it compiles with those that come with xcode-2.4.1. This email sent to site_archiver(a)lists.apple.com

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Re: getaddrinfo for "localhost" gives a strange IP-address
by itojun＠itojun.org 13 Jun '07

13 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com > Hello, > > In my imac I've got this strange problem. Executing ruby's > testsuite will take a very long time. > I've isolated the reason to resolving of "localhost" address. The > ruby uses getaddrinfo. > At the end o fthis mailis a test code that show this strange > behaviour. > Running it will give the following output > > ./test localhost > resolving name=localhost > family=30 sock_type=1 protocol=6 flags=0x0 canonname=(null) > ip=::1 serv=0 > family=2 sock_type=1 protocol=6 flags=0x0 canonname=(null) > ip=173.19.2.144 serv=0 > family=2 sock_type=1 protocol=6 flags=0x0 canonname=(null) > ip=127.0.0.1 serv=0. > > Eg. the first localhost ip is "173.19.2.144". This IP is not > configured in my mac. Here is the > ifconfig -a hmm. i cannot seem to repeat the symptom with my iMac G5 + OS 10.4.9 with your sample program. is there any way to detect libc version? itojun@the author of "IPv6 network programming" book itojun[imac-itojun-org:~] ./a.out resolving name=localhost family=30 sock_type=1 protocol=6 flags=0x0 canonname=(null) ip=::1 serv=0 family=2 sock_type=1 protocol=6 flags=0x0 canonname=(null) ip=127.0.0.1 serv=0 itojun[imac-itojun-org:~] ifconfig -a lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 inet 127.0.0.1 netmask 0xff000000 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280 stf0: flags=0<> mtu 1280 en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet6 fe80::214:51ff:fe98:9f98%en0 prefixlen 64 scopeid 0x4 inet 221.249.121.230 netmask 0xfffffff8 broadcast 221.249.121.231 inet6 2001:240:501::214:51ff:fe98:9f98 prefixlen 64 autoconf ether 00:14:51:98:9f:98 media: autoselect (1000baseT <full-duplex>) status: active supported media: none autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> 1000baseT <full-duplex,flow-control,hw-loopback> en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether 00:14:51:86:f0:19 media: autoselect (<unknown type>) status: inactive supported media: autoselect fw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 4078 lladdr 00:14:51:ff:fe:98:9f:98 media: autoselect <full-duplex> status: inactive supported media: autoselect <full-duplex> itojun[imac-itojun-org:~] uname -a Darwin imac-itojun-org.local 8.9.0 Darwin Kernel Version 8.9.0: Thu Feb 22 20:54:07 PST 2007; root:xnu-792.17.14~1/RELEASE_PPC Power Macintosh powerpc itojun[imac-itojun-org:~] ls -l /usr/lib/libc.dylib lrwxr-xr-x 1 root wheel 15 Dec 14 16:00 /usr/lib/libc.dylib -> libSystem.dylib itojun[imac-itojun-org:~] ls -l /usr/lib/libSystem.dylib lrwxr-xr-x 1 root wheel 17 Dec 14 16:00 /usr/lib/libSystem.dylib -> libSystem.B.dylib itojun[imac-itojun-org:~] ls -l /usr/lib/libSystem.B.dylib -r-xr-xr-x 1 root wheel 4406292 May 26 09:01 /usr/lib/libSystem.B.dylib itojun[imac-itojun-org:~] md5 /usr/lib/libSystem.B.dylib MD5 (/usr/lib/libSystem.B.dylib) = 25ee99bbf8ecce741b1be22a4417341b _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: compiling cctools
by Martin Costabel 13 Jun '07

13 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 1.5.0.12 (Macintosh/20070509) dan hitt wrote: [] On the other hand, if i type make, it compiles a bunch of files (about 220) in the libstuff directory, and then fails on get_toc_byte_sex.c (on undefined SARMAG). So it acts as though there's some kind of configuration step i'm skipping. Thanks in advance for any pointers, faqs, reference to manuals or READMEs or other criticism or advice anybody would care to post here. perl -pi.bak -e 's|profile64 static_kld|profile64|g' Makefile Maybe this is related to your problem? Fink has also a gcc42 package which works nicely on both ppc and intel. -- Martin _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… The cctools package in Fink does the following: Before running make in the libstuff directory, it patches libstuff/Makefile: Generally, even if you don't use Fink or MacPorts, their package descriptions (which are nothing else than formalized build instructions and are human-readable) contain a lot of wisdom about building software. This email sent to site_archiver(a)lists.apple.com

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compiling cctools
by dan hitt 13 Jun '07

13 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=YioW3qK+55ircblwVbfNwOkcpdorZCelafSzGsUzK26dvxap5IS5JAjlIFuBYVnAuynejZqthP2w/d7h62a0UDV4ypV+fZOJQ7DT7luvRCDccxzKFIa2a8AVMLjsYoGRaXBGnLBOmWgepD1ru6hk07wMnf2ND4Ha/kGbmEzTEVg= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=qj2x9R6ZajP3BC9czkfmTpAkufnEN8ZPS+xwfMo28ZY8JS2lFaHauE5GfjtznBBOhadOvq6cPZN5zQL7kXVXjyOT8Gj9laL1SyRgnWnXkTm04UH0kZZ3kGDAP3g83HNGDZRL+xqYvmxC9Qd+FShhekvg6fW4t2wt4Ot0B+qK4RY= I'm attempting to compile cctools version 622.5 (as part of an effort to compile gcc 4.2.0). What is the nominal way to compile? My setup is an intel mac, os version 10.4.9, xcode version 2.4.1: everything is in a very unmodified state. After unpacking the cctols, at the top of the cctools-622.5 directory there's a PB.project file and a Makefile. If i try to open the PB.project file in xcode it treats it just like a plain text file. On the other hand, if i type make, it compiles a bunch of files (about 220) in the libstuff directory, and then fails on get_toc_byte_sex.c (on undefined SARMAG). So it acts as though there's some kind of configuration step i'm skipping. Thanks in advance for any pointers, faqs, reference to manuals or READMEs or other criticism or advice anybody would care to post here. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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open() fails to update st_mtime when used with O_TRUNC and 0 byte files
by Mike Frysinger 12 Jun '07

12 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; b=mFzFkaYB/KpM61HD2ckGcj0toJTWet3+YYhc1ioyn8v+elcOZ2LK/rDfJZFQ/rXEH4EujCDNRW0G9fBZvuczgllHefgWMlfsIh8FRzv8BwrAJF5WfQFLcUKuZ4vrWXE0VBRFS+qIrbU7wzL+5XtvQ48KQFJT6BN44+eLMnd7f3s= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type; b=XEpT5YKgTrJCwopWZrSNwseof1NPkE8nzkJJUqr/DQXT1IPkn7Jnzq2WRtwTr0KGv6KEfn/JMDLRHJ8HQXb8edic/ysnuNdYJXMmCe+k6AQPN6Js1OIKnC47Da+3moQK6HP8SD6e6jAvxHtVALGrcXAR+uMQ+cJO+1QnfBbwQ2U= i was tracking down a bug in the Linux kernel build system which seems to be caused by a bug in Darwin. the kernel build system creates a bunch of 0 byte files and then uses open(O_TRUNC) on them in order to update the st_mtime field (which triggers make to recreate some object files). on my mac mini, this all falls apart. according to POSIX: http://www.opengroup.org/onlinepubs/009695399/functions/open.html If O_TRUNC is set and the file did previously exist, upon successful completion, open() shall mark for update the st_ctime and st_mtime fields of the file. Darwin appears to update st_ctime properly, but not st_mtime. the machine i'm testing on: $ uname -a Darwin Blackfin-Linux-Mac-Mini.local 8.9.0 Darwin Kernel Version 8.9.0: Thu Feb 22 20:54:07 PST 2007; root:xnu-792.17.14~1/RELEASE_PPC Power Macintosh powerpc but it was first noticed on one of the new Interl based macbooks the filesystem is default OS X HFS+ with case sensitivity enabled the attached test code should show the issue clearly -mike #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <assert.h> void timestest(size_t num_bytes) { const char *tempfile = "MOO_MOO"; struct stat st1, st2; int fd, ret; /* punt the file and then create a 0 byte file and get its times */ printf("getting first times ...\n"); unlink(tempfile); fd = open(tempfile, O_WRONLY | O_CREAT | O_TRUNC, 0644); assert(fd >= 0); if (num_bytes) write(fd, tempfile, num_bytes); close(fd); ret = stat(tempfile, &st1); assert(ret == 0); /* sleep a little to make there is a difference in the times */ printf("sleeping for three seconds ...\n"); sleep(3); /* open the file again and grab the new file times */ printf("getting second times ...\n"); fd = open(tempfile, O_WRONLY | O_CREAT | O_TRUNC, 0644); assert(fd >= 0); close(fd); ret = stat(tempfile, &st2); assert(ret == 0); unlink(tempfile); /* each of these should be different (except for atime if you * mount your filesystem with atime turned off) */ #define comp(member) (st1.member == st2.member ? "same" : "diff") printf("the following times should all be different\n(atime can be the same if you have filesystem mounted noatime)\n"); printf("atime: %lu vs %lu (%s)\n" "mtime: %lu vs %lu (%s)\n" "ctime: %lu vs %lu (%s)\n", st1.st_atime, st2.st_atime, comp(st_atime), st1.st_mtime, st2.st_mtime, comp(st_mtime), st1.st_ctime, st2.st_ctime, comp(st_ctime)); printf("\n"); } int main(int argc, char *argv[]) { printf("testing truncation with a 0 byte file\n"); timestest(0); printf("testing truncation with a 4 byte file\n"); timestest(4); return 0; } _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: A question of multi-thread on darwin.
by Greg Parker 12 Jun '07

12 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Calvin Liu wrote: -- Greg Parker gparker(a)apple.com Runtime Wrangler _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Recently I read a book saying that "Windows and Macintosh implementations of Java follow a time slicing approach. Solaris and other Unix implementations follow a preemptive scheduling approach." So I have some questions: Your book is old. Mac OS X uses preemptive scheduling for Java threads and all other threads. (Mac OS Classic did use a time-slice scheduler.) 1. Does it mean changing priority of a process won't change anything on Windows/Mac because of the time slicing approach? 2. And if it happens on all BSD-based OS? 3. Where can I find details for this topic? In general, process priority should affect Java the same way as non- Java code. Other BSD-based systems may differ, but I expect they all use preemptive threads for Java and non-Java. java-dev(a)lists.apple.com will know more about Mac OS X's Java implementation. This email sent to site_archiver(a)lists.apple.com

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A question of multi-thread on darwin.
by Calvin (Yu-Hui) Liu 12 Jun '07

12 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.0 (Windows/20070326) Hi, there, Recently I read a book saying that "Windows and Macintosh implementations of Java follow a time slicing approach. Solaris and other Unix implementations follow a preemptive scheduling approach." So I have some questions: 1. Does it mean changing priority of a process won't change anything on Windows/Mac because of the time slicing approach? 2. And if it happens on all BSD-based OS? 3. Where can I find details for this topic? Thanks. Calvin _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Produce working, fat binary dynamic library from command line?
by mal content 11 Jun '07

11 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=googlemail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=t/ZIVbXqx2jYOfsokx81/Ky9PysUq2d0vv0E5eOtiCEoK3CcbFtXtJLv8sJv7eikS5tNEFv/IPsL66xHpiMDtTO2p2axv6MIDW8RXNgHsn7TRcdiG/0VYSYIDUhYNQeCKoggpEdNQUaopYB2zZPQAWFn5LFFU0ydD8m5SCA/4DY= Domainkey-signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=s8385xBq9ln7NXM5bM2N0WMwdlfQ89T5UQHPYxqbHb/hJgSsURbpq/2ruPa2a27M+98zKro81/JAAELCnkhtje1D8glKuKf4rUDLj12GIoYqjEIGt4Wy+tE8K8JGtXN+TJXUbLyO6eZE93zSYG7u1TSbp7falLzs8qU+CBuJ/P4= On 6/11/07, mal content <artifact.one(a)googlemail.com> wrote: > On 11/06/07, Andrew Pinski <pinskia(a)gmail.com> wrote: > > On 6/11/07, mal content <artifact.one(a)googlemail.com> wrote: > > > t.dylib: t.h t1.o t2.o t3.o > > > libtool -dynamic -o t.dylib t1.o t2.o t3.o -lSystemStubs -lc > > > > Just do: > > gcc -dynamiclib -arch i386 -arch ppc -isysroot > > /Developer/SDKs/MacOSX10.4u.sdk t1.o t2.o t3.o > > > > Instead of invoking libtool directly. > > > > Thanks, > > Andrew Pinski > > > Any idea what I can do about this? Yes add "-install_name t.dylib" (with the full path to where it is going to be installed if you want). Excellent, thanks! MC _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On 11/06/07, Andrew Pinski <pinskia(a)gmail.com> wrote: This email sent to site_archiver(a)lists.apple.com

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Re: Produce working, fat binary dynamic library from command line?
by Andrew Pinski 11 Jun '07

11 Jun '07

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=RpNE4EYYqln1vhIiHF18xpzad8GTHg4zJhZghcpGYl71nHLEF6rINso+rMD/UXshxCMcWzEAw5vO4IO8t7CJbg/WwpJ2+IJw3daoSfUBBwaYF9KY6koMP2MSvABFtFkq8VCcDucykwJX/LGTRfXR+TvBUFTIyvSNq+OP0atThW0= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=GnBy8JHCVYaJ/8/y0WgR8tLoX4BHo4lFtG9qVWhSa6PzKvSgYuvaW3BK+T/JxiJvWzLED5OVBi0mjQ20hykHO/4Y1/O9Sk15hhU5h7t9fSGwn8ebfhV1Yw5RyEowQ89euMnyw3cccrGwdk5cDEScXWp/JP3FOzZoWgbZBY8t4Q8= On 11/06/07, Andrew Pinski <pinskia(a)gmail.com> wrote: > On 6/11/07, mal content <artifact.one(a)googlemail.com> wrote: > > t.dylib: t.h t1.o t2.o t3.o > > libtool -dynamic -o t.dylib t1.o t2.o t3.o -lSystemStubs -lc > > Just do: > gcc -dynamiclib -arch i386 -arch ppc -isysroot > /Developer/SDKs/MacOSX10.4u.sdk t1.o t2.o t3.o > > Instead of invoking libtool directly. > > Thanks, > Andrew Pinski > Any idea what I can do about this? Yes add "-install_name t.dylib" (with the full path to where it is going to be installed if you want). Thanks, Andrew Pinski _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… On 6/11/07, mal content <artifact.one(a)googlemail.com> wrote: This email sent to site_archiver(a)lists.apple.com

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