June 2008 - Darwin-dev - lists.apple.com

Re: Problems with linker (ld)
by Jean-Daniel Dupas 04 Jun '08

04 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I don't think it is part of the default search path. Le 4 juin 08 à 14:58, Fabrizio Bertocci a écrit : I'm having a weird problem with the linker I cannot explain. Before filing it as a possible bug, I'd like to have your opinion on that. When I add those libraries to my Xcode project, Xcode end up passing them to the link phase using the -l<lib> form: -lfoo -lbar -lfoo++ -lbar++ Unfortunately, the link phase reports a bunch of unresolved symbols. If I invoke by hand ld by specifying the static libs directly as input files instead of libraries everything works fine: ld ... /usr/local/lib/libfoo.a /usr/locallib/libbar.a /usr/local/lib/libfoo++.a /usr/local/lib/libbar++.a In my case I also discovered that ONLY ONE library needs to be listed using /usr/local/lib/<blah>.a... To be more specific, this is *NOT* working: ld <...> -lxmlrpc++ -lxmlrpc_server_abyss++ -lxmlrpc_server++ -lxmlrpc_server_abyss -lxmlrpc_server -lxmlrpc_abyss -lxmlrpc_util -lxmlrpc_xmlparse -lxmlrpc_xmltok -lxmlrpc and this IS WORKING: -lxmlrpc++ -lxmlrpc_server_abyss++ -lxmlrpc_server++ -lxmlrpc_server_abyss -lxmlrpc_server -lxmlrpc_abyss -lxmlrpc_util -lxmlrpc_xmlparse -lxmlrpc_xmltok /usr/local/lib/libxmlrpc.a Weird isn't it? Am I missing something? Is it really a bug ? Thanks for your opinion. Fab _______________________________________________ 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… is /usr/loca/lib in your library search path in Xcode target build settings ? Brief description: I'm building an executable (command-line) that requires some external libraries. Let's say I need to link (statically) with: /usr/local/lib/libfoo.a /usr/local/lib/libbar.a /usr/local/lib/libfoo++.a /usr/local/lib/libbar++.a Interested? If you want to reproduce it, download the xmlrpc-c library from Sourceforge (xmlrpc-c.sourceforge.net) build it and install it under /usr/local and try to build one of the example first using the form that uses the -l<lib> flag, and then with the other form. This email sent to site_archiver(a)lists.apple.com

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Re: Compiling msdosfs...
by Jean-Daniel Dupas 04 Jun '08

04 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Le 4 juin 08 à 14:06, Bart Thissen a écrit : Hi, Links to any help would be great! Thanks, Bart http://darwinbuild.macosforge.org/trac/browser/trunk _______________________________________________ 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… For the last few days I'm trying to compile the msdosfs package from source, without luck so far. Tried both with XCode under 10.4.11 and 10.5.3, and with 'darwinbuild', also on both releases. Did anybody succesfully build msdosfs from the source at opensource.apple.com? Is 'darwinbuild' the way to go (although it looks like it hasn't been updated for quite a long time), or should one manually search & copy all header, libs etc. to get a build? About which Darwin Build are you talking about ? The darwin build svn trunk contains change that are 6 days old ? Is it what you are calling "quite a long time" ? This email sent to site_archiver(a)lists.apple.com

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Problems with linker (ld)
by Fabrizio Bertocci 04 Jun '08

04 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:mime-version:content-type:content-transfer-encoding :content-disposition; bh=xGHSaQKO32ffplMufl91/CPkTypaiUxfhXKwYCFs1o0=; b=urnlkxuhQLVichkwV2+w5Qq0RHBju4abr/KWZizghymU8Ts3WT5Q7KXvpu71XM5VIn 5PnNBhyxGeRpuZ4PO7UtnIPpDHP0qOJm2O2e1rxvL+igK3FtNV91AGlSHGK3enyyLCqF 6NAGn0JAcKyL0MomcUDawfOGFALiP6wqROdKo= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type :content-transfer-encoding:content-disposition; b=p0lID4lbKM4mrIATZzMsviZ+naroBftwKBCaIOmM6NoUf/pN97otULYU1GuA6S6aU5 ZV0lHEpPzIgtxhg5da7SmPHnR2KqY5VQIT5YK4PqB3qtwX1nCt7WdJVzMJNzsrKNjUQt tehQi/3CNeberpmdd5iPlcZdywae8HpS+QT6E= I'm having a weird problem with the linker I cannot explain. Before filing it as a possible bug, I'd like to have your opinion on that. Brief description: I'm building an executable (command-line) that requires some external libraries. Let's say I need to link (statically) with: /usr/local/lib/libfoo.a /usr/local/lib/libbar.a /usr/local/lib/libfoo++.a /usr/local/lib/libbar++.a When I add those libraries to my Xcode project, Xcode end up passing them to the link phase using the -l<lib> form: -lfoo -lbar -lfoo++ -lbar++ Unfortunately, the link phase reports a bunch of unresolved symbols. If I invoke by hand ld by specifying the static libs directly as input files instead of libraries everything works fine: ld ... /usr/local/lib/libfoo.a /usr/locallib/libbar.a /usr/local/lib/libfoo++.a /usr/local/lib/libbar++.a Interested? If you want to reproduce it, download the xmlrpc-c library from Sourceforge (xmlrpc-c.sourceforge.net) build it and install it under /usr/local and try to build one of the example first using the form that uses the -l<lib> flag, and then with the other form. In my case I also discovered that ONLY ONE library needs to be listed using /usr/local/lib/<blah>.a... To be more specific, this is *NOT* working: ld <...> -lxmlrpc++ -lxmlrpc_server_abyss++ -lxmlrpc_server++ -lxmlrpc_server_abyss -lxmlrpc_server -lxmlrpc_abyss -lxmlrpc_util -lxmlrpc_xmlparse -lxmlrpc_xmltok -lxmlrpc and this IS WORKING: -lxmlrpc++ -lxmlrpc_server_abyss++ -lxmlrpc_server++ -lxmlrpc_server_abyss -lxmlrpc_server -lxmlrpc_abyss -lxmlrpc_util -lxmlrpc_xmlparse -lxmlrpc_xmltok /usr/local/lib/libxmlrpc.a Weird isn't it? Am I missing something? Is it really a bug ? Thanks for your opinion. Fab _______________________________________________ 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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Compiling msdosfs...
by Bart Thissen 04 Jun '08

04 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Organization: ArdisTechnologies bv User-agent: Mozilla-Thunderbird 2.0.0.9 (X11/20080110) Hi, Links to any help would be great! Thanks, Bart _______________________________________________ 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… For the last few days I'm trying to compile the msdosfs package from source, without luck so far. Tried both with XCode under 10.4.11 and 10.5.3, and with 'darwinbuild', also on both releases. Did anybody succesfully build msdosfs from the source at opensource.apple.com? Is 'darwinbuild' the way to go (although it looks like it hasn't been updated for quite a long time), or should one manually search & copy all header, libs etc. to get a build? This email sent to site_archiver(a)lists.apple.com

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gdb info shared reporting multiple entries for the same library
by Neal Sidhwaney 04 Jun '08

04 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; bh=kwiiy/PmiX1Ous+6Jg7NH2F9iSehNjZeKxg+irDZSmo=; b=v8FvRoCCiRGcJXKLCwLxJCd5ObPbP15NcU+N1bXjhezgKnZNPrxbM4YuKtsoYswz5TU2PzOEHSHTSleYTOpRG3uXClE6huN5NlpIOcVTsKq/Y84vA7rYZdLPo4V0St5T7N/dbmfBhPIV6USv6clOYRWJVKyCdfr5IDK9xR681vU= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=BuQ+BmMGyU5iUXhg0NsS0oStRTX20s4adcWJQwKWBjj1eIuNgUB2FcPHh9V/eSu3f7UpCMR0dGov7v5hMlpeO0r9aQulXgLrKqviE479acydqw3ZA9/CualkM8Z10HaNQteAzm2qaxsQHZhXadAxOSCcJyGO5cqUI1UornJGsag= _______________________________________________ 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 DashboardClient_2008-06-03-140400_localhost.crash

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Re: Problem reading struct file on Mac 10.3.0
by Terry Lambert 03 Jun '08

03 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com The mistake is in referring to it at all, which he already understands. -- Terry _______________________________________________ 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 Jun 3, 2008, at 1:21 AM, Uli Kusterer <witness.of.teachtext(a)gmx.net> wrote: Am 14.05.2008 um 11:35 schrieb Manish Chaturvedi: This time I can read struct proc, struct filedesc using kread() which in turn uses kvm_read() to access the kernel virtual memory, but when I am declaring struct file fl in method process_file() to read individual file structures, I am getting compilation error “e rror: aggregate `file fl' has incomplete type and cannot be define d”. Unlike struct proc and struct filedesc I am not able to kread the file structure, which is not private on Mac10.3. lsof uses the structures successfully , then why it is not accessible to my programme. Is there is any special privilege required to do the same ? Please help ! I would guess you just forgot the header that includes the "struct file" deFINITion. You see, to not add too many dependencies that cause a lot of recompiling, some people just deCLARE a struct in the header, without including the other header that deFINEs it. That way, the people who include that header and don't need to use that struct directly don't have to include that header at all, and don't get recompiled in that case. As I said previously, "struct file" is forward declared in a couple of headers, but is never used or instanced by the kernel, even privately. It was deprecated when we did the fine grain locking of the proc structure. This email sent to site_archiver(a)lists.apple.com

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Re: crash when throwing exception
by Daniel Oberhoff 03 Jun '08

03 Jun '08

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… This email sent to site_archiver(a)lists.apple.com

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Re: Problem reading struct file on Mac 10.3.0
by Uli Kusterer 03 Jun '08

03 Jun '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com E.g.: Mystruct.h: struct Mystruct { int foo; }; MyStructUser.h: struct OtherStruct { struct Mystruct* pointerToMystruct; }; MyStructUser.c: #include "Mystruct.h" // Must be here, otherwise you can't use Mystruct. ... Cheers, -- Uli Kusterer "The Witnesses of TeachText are everywhere..." http://www.zathras.de _______________________________________________ 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… Am 14.05.2008 um 11:35 schrieb Manish Chaturvedi: This time I can read struct proc, struct filedesc using kread() which in turn uses kvm_read() to access the kernel virtual memory, but when I am declaring struct file fl in method process_file() to read individual file structures, I am getting compilation error “error: aggregate `file fl' has incomplete type and cannot be defined”. Unlike struct proc and struct filedesc I am not able to kread the file structure, which is not private on Mac10.3. lsof uses the structures successfully , then why it is not accessible to my programme. Is there is any special privilege required to do the same ? Please help ! I would guess you just forgot the header that includes the "struct file" deFINITion. You see, to not add too many dependencies that cause a lot of recompiling, some people just deCLARE a struct in the header, without including the other header that deFINEs it. That way, the people who include that header and don't need to use that struct directly don't have to include that header at all, and don't get recompiled in that case. struct Mystruct; // Could do a #include "Mystruct.h" instead, causing a dependency. If you don't have that last include of Mystruct.h, any attempt to actually use Mystruct will fail with an error message like the one you got, because all the OS knows is that there is a struct called Mystruct, but not what size it is or what fields it contains. That's what it means by 'incomplete'. Pointers are all the same size, no matter what they point to, so you can declare pointerToMystruct in MystructUser.h, even though it doesn't know what's inside that pointer. One advantage of this is that, when Mystruct changes, only people who actually include Mystruct need to be recompiled. Those who use the struct Mystruct; forward declaration are not affected. That is very beneficial if you have a large project, or a header that gets included by many others. Every additional include you keep out of a "popular" header in your project means one more file you can change without a near-complete recompile. This email sent to site_archiver(a)lists.apple.com

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