June 2005 - Darwin-dev - lists.apple.com

Re: Building kextsymboltool as described in 'Kernel Programming'
by Michael Tuexen 27 Jun '05

27 Jun '05

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com Hi Finlay, Best regards Michael On Jun 27, 2005, at 12:05 PM, Finlay Dobbie wrote: On 6/27/05, Michael Tuexen <Michael.Tuexen(a)lurchi.franken.de> wrote: So mach-o/kld.h and IOKit/kext/KXKextManager.h are missing. I found mach-o/kld.h inside cctools-576.2 but do not know where to get IOKit/kext/KXKextManager.h. Could someone tell where to get the file (and update the document Kernel Programming)? It's a private header installed by IOKitUser. You can use the search at <http://darwinsource.opendarwin.org/> to see which project contains a given installed file. If you want the documentation to be updated, you should file a bug at <http://bugreport.apple.com/>. -- Finlay _______________________________________________ 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… thanks a lot. I found the files now (I was only looking in the IOKitTools before). This email sent to site_archiver(a)lists.apple.com

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Re: Tape support on Mac OS X?
by mlists＠ugsoft.de 27 Jun '05

27 Jun '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Uwe Gohlke UGSoft I have old SCSI tape drives, but they don't show up using my firewire to SCSI adapter, and I don't have a SCSI controller that will work at all in my G5. Does anyone out there have a tape device which actually shows up in /dev? If so, what does it show up as? -s _______________________________________________ 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/mlists%40ugsoft.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… You can install the tape driver smtc from our commercial product ES-Backup http://www.ugsoft.de . The driver as well as esbdump, esbrestore and esbmt commands may be used free of charge in non-commercial environments - see license file in downloaded image for details. smtc (Scsi Magnetic Tape Changer) supports a wide range of SCSI, FireWire and USB tape drives and changer devices. At 0:40 Uhr -0500 21.06.2005, Peter Seebach wrote: This email sent to mlists(a)ugsoft.de This email sent to site_archiver(a)lists.apple.com

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Re: Building kextsymboltool as described in 'Kernel Programming'
by Finlay Dobbie 27 Jun '05

27 Jun '05

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=olFJdXaeNBdKf6Ph4SFwZE1dOu471RW8/bkfW3IhOW3rNUVtt+HYiqQxfAjXrl68zvxtMDF2zT1ecqDHkaPYkBFIKiQSdE79cPYAfTRXsBSiP4l6MPqoX0tq/I9iAX2IutyzWw4oChbkjX/xQ3Flfra0U9+KE8z6G7fQPh6IusA= On 6/27/05, Michael Tuexen <Michael.Tuexen(a)lurchi.franken.de> wrote: > So mach-o/kld.h and IOKit/kext/KXKextManager.h are missing. I found > mach-o/kld.h inside cctools-576.2 > but do not know where to get IOKit/kext/KXKextManager.h. > > Could someone tell where to get the file (and update the document > Kernel Programming)? It's a private header installed by IOKitUser. You can use the search at <http://darwinsource.opendarwin.org/> to see which project contains a given installed file. If you want the documentation to be updated, you should file a bug at <http://bugreport.apple.com/>. -- Finlay _______________________________________________ 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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Building kextsymboltool as described in 'Kernel Programming'
by Michael Tuexen 27 Jun '05

27 Jun '05

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com It says cd kext_tools-version gcc kextsymboltool.c -o kextsymboltoo sudo cp kextsymboltool /usr/local/bin but the compiler says Thank you very much. Best regards Michael _______________________________________________ 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 new release of Kernel Programming describes how to build kextsymboltool. [Tiger-MacMini:~/Desktop/kext_tools-59] tuexen% gcc kextsymboltool.c - o kextsymboltool kextsymboltool.c:21:24: mach-o/kld.h: No such file or directory kextsymboltool.c:28:38: IOKit/kext/KXKextManager.h: No such file or directory kextsymboltool.c:35: error: parse error before "readFile" kextsymboltool.c:35: warning: data definition has no type or storage class kextsymboltool.c:37: error: parse error before "writeFile" kextsymboltool.c:37: warning: data definition has no type or storage class kextsymboltool.c:41: error: parse error before "writeFile" kextsymboltool.c: In function `writeFile': kextsymboltool.c:43: error: `KXKextManagerError' undeclared (first use in this function) kextsymboltool.c:43: error: (Each undeclared identifier is reported only once kextsymboltool.c:43: error: for each function it appears in.) kextsymboltool.c:43: error: parse error before "err" kextsymboltool.c:46: error: `err' undeclared (first use in this function) kextsymboltool.c:46: error: `kKXKextManagerErrorDiskFull' undeclared (first use in this function) kextsymboltool.c:48: error: `kKXKextManagerErrorNone' undeclared (first use in this function) kextsymboltool.c: At top level: kextsymboltool.c:57: error: parse error before "readFile" kextsymboltool.c: In function `readFile': kextsymboltool.c:59: error: `KXKextManagerError' undeclared (first use in this function) kextsymboltool.c:59: error: parse error before "err" kextsymboltool.c:85: error: `err' undeclared (first use in this function) kextsymboltool.c:85: error: `kKXKextManagerErrorNone' undeclared (first use in this function) kextsymboltool.c: In function `main': kextsymboltool.c:253: error: `KXKextManagerError' undeclared (first use in this function) kextsymboltool.c:253: error: parse error before "err" kextsymboltool.c:335: error: `err' undeclared (first use in this function) kextsymboltool.c:336: error: `kKXKextManagerErrorNone' undeclared (first use in this function) kextsymboltool.c:443: error: `kKXKextManagerErrorUnspecified' undeclared (first use in this function) kextsymboltool.c:451: error: `kKXKextManagerErrorFileAccess' undeclared (first use in this function) kextsymboltool.c:496: error: `kKXKextManagerErrorAlreadyLoaded' undeclared (first use in this function) So mach-o/kld.h and IOKit/kext/KXKextManager.h are missing. I found mach-o/kld.h inside cctools-576.2 but do not know where to get IOKit/kext/KXKextManager.h. Could someone tell where to get the file (and update the document Kernel Programming)? This email sent to site_archiver(a)lists.apple.com

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Detecting file I/O read-ahead
by Chris Page 27 Jun '05

27 Jun '05

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: Early lowlevel startup of user processes (crt1.o ... )??
by Shantonu Sen 27 Jun '05

27 Jun '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Shantonu On Jun 26, 2005, at 4:13 PM, Rob Ballantyne wrote: Hi, I'm trying to understand the early startup process. In particular I'm trying to build a standalone assembly language program (no crt?.o) that will link against libSystem.dylib. I've managed to link correctly against it for simple routines (atoi for example) but I've run into a problem attempting to use printf. The system cores on me. Witness: (gdb) run Starting program: /Users/ballanty/devel/AsmTest/test3 Testing...1,2, Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00000000 0x90003464 in malloc () (gdb) where #0 0x90003464 in malloc () #1 0x90110d08 in localeconv_l () #2 0x9000fc30 in __vfprintf () #3 0x900fa088 in vfprintf_l () #4 0x90022318 in printf () #5 0x00001f88 in start () at test3.s:28 #6 0x00000000 in ?? () Cannot access memory at address 0x0 Cannot access memory at address 0xa Cannot access memory at address 0x0 Cannot access memory at address 0x0 #7 0x00000000 in ?? () Cannot access memory at address 0x0 Cannot access memory at address 0x0 Cannot access memory at address 0xa Previous frame inner to this frame (corrupt stack?) (gdb) It looks like it is linked correctly but I can't figure out why malloc is core-ing (looks like it's dereferncing a null pointer to me). I suspect there is some startup routing (initialization?) that must be called before some stuff from the C library can be called. Can anyone confirm that? In crt.c it appears the only significant thing that gets called is: __dyld_make_delayed_module_initializer_calls. The comment in the code seems to indicate it's C++ specific though!!! Can anyone confirm/deny my guess? I've examined: start.s, crt.c, and dyld.s. This appears it might be the problem. Many Thanks for any help! This email sent to ssen(a)opendarwin.org _______________________________________________ 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… Why are you doing this? Why not start with a working crt1.o and remove what you don't want? Lots of things get called from crt.c, among them (*_cthread_init_routine)() in libSystem.B.dylib, which is responsible for initializing pthread state for the default thread. Without calling this routine, you're not going to get very far. Rob _______________________________________________ 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/ssen% 40opendarwin.org This email sent to site_archiver(a)lists.apple.com

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How to determine active semaphores?
by Tron Thomas 27 Jun '05

27 Jun '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) What command can give me the information I am seeking? _______________________________________________ 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… I want to determine how many active semaphores are on my system, and I'm not sure how this can be done. It seems I can know how many semaphores are allowed by using the sysctl command. Someone had suggested that the ipcs command would be helpful. When I use it like this: ipcs -as This is the output I get, which I don't find to be helpful: Semaphores: T ID KEY MODE OWNER GROUP CREATOR CGROUP NSEMS OTIME CTIME This email sent to site_archiver(a)lists.apple.com

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Early lowlevel startup of user processes (crt1.o ... )??
by Rob Ballantyne 26 Jun '05

26 Jun '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla Thunderbird 1.0 (Macintosh/20041206) Hi, I'm trying to understand the early startup process. In particular I'm trying to build a standalone assembly language program (no crt?.o) that will link against libSystem.dylib. I've managed to link correctly against it for simple routines (atoi for example) but I've run into a problem attempting to use printf. The system cores on me. Witness: (gdb) run Starting program: /Users/ballanty/devel/AsmTest/test3 Testing...1,2, Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x00000000 0x90003464 in malloc () (gdb) where #0 0x90003464 in malloc () #1 0x90110d08 in localeconv_l () #2 0x9000fc30 in __vfprintf () #3 0x900fa088 in vfprintf_l () #4 0x90022318 in printf () #5 0x00001f88 in start () at test3.s:28 #6 0x00000000 in ?? () Cannot access memory at address 0x0 Cannot access memory at address 0xa Cannot access memory at address 0x0 Cannot access memory at address 0x0 #7 0x00000000 in ?? () Cannot access memory at address 0x0 Cannot access memory at address 0x0 Cannot access memory at address 0xa Previous frame inner to this frame (corrupt stack?) (gdb) It looks like it is linked correctly but I can't figure out why malloc is core-ing (looks like it's dereferncing a null pointer to me). I suspect there is some startup routing (initialization?) that must be called before some stuff from the C library can be called. Can anyone confirm that? In crt.c it appears the only significant thing that gets called is: __dyld_make_delayed_module_initializer_calls. The comment in the code seems to indicate it's C++ specific though!!! Can anyone confirm/deny my guess? I've examined: start.s, crt.c, and dyld.s. This appears it might be the problem. Many Thanks for any help! Rob _______________________________________________ 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 on 8.1.0, running on 7.8.0
by Steve Checkoway 26 Jun '05

26 Jun '05

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 smime.p7s

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Re: Compiling on 8.1.0, running on 7.8.0
by Shantonu Sen 26 Jun '05

26 Jun '05

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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