September 2005 - Darwin-dev

RE: Prioritizing SBP2 daemon
by Mike Smith 24 Sep '05

24 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Sep 24, 2005, at 12:04 PM, darwin-dev-request(a)lists.apple.com wrote: = Mike _______________________________________________ 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… What I wanted that this daemon should be launched before any drivers for SBP2 gets loaded. It must be possible but somehow I could not find the proper entry for "Uses". This is not possible, unless you *only* load the driver explicitly from the utility. How would you boot from an SBP2 device if the driver required to read the root volume could not load until after a daemon had been run from the root volume? This email sent to site_archiver(a)lists.apple.com

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RE: Prioritizing SBP2 daemon
by priti.rathi＠wipro.com 24 Sep '05

24 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcXAkiWbcMlAs0tzSgS9ju7jhioFbwAFw8fs Thread-topic: Prioritizing SBP2 daemon _______________________________________________ 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: What is different about the way Apple builds GCC ?
by Boyd Waters 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Sep 23, 2005, at 6:34 AM, Sam Hart wrote: ld: Undefined symbols: ___guard ___stack_smash_handler ~ boyd Boyd Waters National Radio Astronomy Observatory Socorro, New Mexico _______________________________________________ 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 built fine the fsf-way and install and work correctly but would fail when building the Apple way with : I have built GCC compilers with SSP (stack-smashing protection) on 32- bit, x86 Gentoo Linux; this often required patches to the C library glibc. And I worked to compile a number of GCC 4.0 CVS builds last Spring, as I wanted the gfortran... but I haven't done anything recently. I didn't know that SSP was enabled under Darwin, particularly Darwin PPC. The patch from reference 4 of your email turns SSP on by default, I think (normally via --enable-stack-protector argument to ./ configure, but this seems to turn it on by default). I see also that GCC 4.1 stage 2 include a "Reimplementation of IBM's Pro Police Stack Detector" but I can't find any discussion of such. In any event, GCC CVS HEAD seems to be rather unstable at the moment on PPC Darwin? Or is that unfair? This email sent to site_archiver(a)lists.apple.com

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Re: Prioritizing SBP2 daemon
by Kevin Elliott 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Couple things to check: At 19:09 +0530 on 9/23/05, Priti Rathi wrote: Hi All, I have written a Startupitems , which has StartupParameters.plist as OrderPreference = "First"; Uses = ("System Tuning"); Provides = ("SBP2 Messages"); Description = ("SBP2 Daemon"); Thanks for any help, -Priti "A man is not finished when he is defeated. He's finished when he quits" Confidentiality Notice _______________________________________________ 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/kelliott%40mac.com This email sent to kelliott(a)mac.com -- ______________________________________________________ Arguing with an engineer is like wrestling with a pig in mud. After a while, you realize the pig is enjoying it. ______________________________________________________ Kevin Elliott <mailto:kelliott@mac.com> AIM/iChatAV: kelliott(a)mac.com (video chat available) ______________________________________________________ _______________________________________________ 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… 1) Are your permissions right? root owned, 755 is a safe bet. I've had mixed results where it looked like permissions were preventing my item from loading, plus it the right way to do things. 2) Is SystemTuning loading. Especially on Tiger, their are a number of StartupItems that exist in /System/Library/StartupItems and appear valid, but don't actually load since they've been turned/replaced by launchd items. If you say your using something and it loads, you won't load. I have written a SBP2 application which keeps track of all activities going on SBP2 disk. But now I need to load my application before actual driver gets loaded for SBP2. But my daemon is not getting started. What could be the reason? Am I missing something? The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or Mailadmin(a)wipro.com immediately and destroy all copies of this message and any attachments. This email sent to site_archiver(a)lists.apple.com

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Re: What is different about the way Apple builds GCC ?
by Stan Shebs 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.12) Gecko/20050915 I'm somewhat out of touch with the specifics of your issue (my first inclination would be to double check system vs compiler versions, not all combos work), but I thought I'd explain the theory; Apple GCC has a special build process because we want to support multiple architectures and fat^Wuniversal binaries. The "FSF way" only ever builds one compiler, while the "Apple way" builds n-squared compilers for n architectures, with appropriate hosts and targets, bootstrapping the native versions, and lipo-ing together the target libraries. The Apple way also takes care of some smaller issues, such as some pathname trickery. Stan _______________________________________________ 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: Debugging on one machine?
by Andrew Gallatin 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dan Joumaa writes: > Hello, > > I'd like to debug my device drivers to make my life a whole lot easier. > But the thing is, I only have one mac on my household network. The > other two computers are Windows computers. As I've read, I have to > debug with another mac. Knowing this, is there any way I can debug > without buying another machine? You don't actually have to debug with another mac, it just makes life much, much, much easier. You could install freebsd or linux on one of the x86 machines and use a cross-built gdb to do 2 machine debugging. I have a cross built gdb for freebsd, and others have done it for linux. You might be able take a network dump by building kdumpd for windows and run it on windows. I run kdumpd on freebsd, for example. If your time is worth anything to you, it might be cheaper to just buy another machine to help with debugging. Drew _______________________________________________ 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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Prioritizing SBP2 daemon
by Priti Rathi 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Thread-index: AcXAREaA2qltLXwzQGeVadKoRxc+QA== _______________________________________________ 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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Debugging on one machine?
by Dan Joumaa 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hello, --ness _______________________________________________ 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'd like to debug my device drivers to make my life a whole lot easier. But the thing is, I only have one mac on my household network. The other two computers are Windows computers. As I've read, I have to debug with another mac. Knowing this, is there any way I can debug without buying another machine? This email sent to site_archiver(a)lists.apple.com

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What is different about the way Apple builds GCC ?
by Sam Hart 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, To build Apple's branch of GCC there are 2 ways to build it The FSF way : % mkdir darwin % cd darwin .% ../configure --prefix=/tmp/testplace % make bootstrap # make install or the Apple way : % mkdir -p build/obj build/dst build/sym % gnumake install RC_OS=macos RC_ARCHS=ppc TARGETS=ppc \ SRCROOT=`pwd` OBJROOT=`pwd`/build/obj \ DSTROOT=`pwd`/build/dst SYMROOT=`pwd`/build/sym # ditto build/dst / ld: Undefined symbols: ___guard ___stack_smash_handler <-- snip --> <-- snip --> echo timestamp > stmp-multilib echo timestamp > stage3_build echo stage3_build > stage_last ******************************************** * *** gnumake failed building compiler *** * ******************************************** make: *** [build] Error 1 +++++++++++++++++++++++++++++++++++++++++ EXIT STATUS: 2 Anyway any help would be appreciated :) S a m _______________________________________________ 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… my apologies in advance, this is going to be a loooong mail, I can feel it. This is the same for both the apple-local-200502-branch ( formally apple-ppc-branch ) maintained on the CVS over at gcc.gnu.org, or for the tarballs from developer.apple.com I've been putting together patches for Apple's GCCs and I am having some problems that show up when building the Apple way, although I like to play with GCC internals, and I will eventually track down the problem given enough time, I am admittedly a bit stumped and it would probably be worth me putting it out to the community and just get it resolved rather than pushing on regardless. Lets take an example of Apple's gcc-1495[1] which I produced a patch [2] for last year. This built fine the fsf-way and install and work correctly but would fail when building the Apple way with : That was a while ago and I got distracted with other work to really track down the problem. Anyway not so long ago I started taking another look, updating versions of GCC and redoing the diffs. The most progress has been made with Apple's gcc-1809[3], however with or without the patch[4] it b0rks during compilation with : rm -f f771 stage1/xgcc -Bstage1/ -B/usr/local/powerpc-apple-darwin8.2.0/bin/ -no- cpp-precomp -g -O2 -no-cpp-precomp -DIN_GCC -W -Wall -Wwrite- strings -Wstrict-prototypes -Wmissing-prototypes -Wtraditional - pedantic -Wno-long-long -mdynamic-no-pic -DHAVE_CONFIG_H -o f771 f/ bad.o f/bit.o f/bld.o f/com.o f/data.o f/equiv.o f/expr.o f/global.o f/implic.o f/info.o f/intrin.o f/lab.o f/lex.o f/malloc.o f/name.o f/ parse.o f/src.o f/st.o f/sta.o f/stb.o f/stc.o f/std.o f/ste.o f/ storag.o f/stp.o f/str.o f/sts.o f/stt.o f/stu.o f/stv.o f/stw.o f/ symbol.o f/target.o f/top.o f/type.o f/where.o main.o libbackend.a ./ intl/libintl.a -liconv ../libiberty/libiberty.a \ stub-genindex.o ld: warning multiple definitions of symbol _asprintf ../libiberty/libiberty.a(asprintf.o) definition of _asprintf in section (__TEXT,__text) /usr/lib/libSystem.dylib(asprintf-LDBL.So) definition of _asprintf ld: warning multiple definitions of symbol _locale_charset ./intl/libintl.a(localcharset.o) definition of _locale_charset in section (__TEXT,__text) /usr/lib/libiconv.dylib(localcharset.o) definition of _locale_charset ld: Undefined symbols: _cpp_token_val_index make[2]: *** [f771] Error 1 make[1]: *** [stage2_build] Error 2 make: *** [bootstrap-lean] Error 2 so it is consistent. This isn't really a problem as building the Apple way is the goal. I also tried to build the Apple way without the patch and it built fine, however adding the patch brought back a familiar message Bootstrap complete - make "quickstrap" to redo last build, or "cleanstrap" to redo the bootstrap from scratch. rm -f .bad_compare case "gnucompare" in gnucompare | gnucompare-lean ) stage=2 ;; * ) stage=`echo gnucompare | sed -e 's,^gnucompare$[0-9][0-9]*$.*, \1,'` ;; esac; \ for file in *.o; do \ cmp --ignore-initial=16 $file stage$stage/$file > /dev/null 2>&1; \ test $? -eq 1 && echo $file differs >> .bad_compare || true; \ done case "gnucompare" in gnucompare | gnucompare-lean ) stage=2 ;; * ) stage=`echo gnucompare | sed -e 's,^gnucompare$[0-9][0-9]*$.*, \1,'` ;; esac; \ for dir in tmp-foo intl cp objc objcp; do \ if [ "`echo $dir/*.o`" != "$dir/*.o" ] ; then \ for file in $dir/*.o; do \ cmp --ignore-initial=16 $file stage$stage/$file > /dev/null 2>&1; \ test $? -eq 1 && echo $file differs >> .bad_compare || true; \ done; \ else true; fi; \ done case "gnucompare" in gnucompare | gnucompare-lean ) stage=2 ;; * ) stage=`echo gnucompare | sed -e 's,^gnucompare$[0-9][0-9]*$.*, \1,'` ;; esac; \ if [ -f .bad_compare ]; then \ echo "Bootstrap comparison failure!"; \ cat .bad_compare; \ exit 1; \ else \ case "gnucompare" in \ *-lean ) rm -rf stage$stage ;; \ esac; true; \ fi rm -f ppc-rtl.c sed -e 's/config[.]h/hconfig.h/' /SourceCache/gcc_os/gcc_os-1809/gcc/ rtl.c > ppc-rtl.c cc -arch ppc -no-cpp-precomp -c -no-cpp-precomp -pipe -no-cpp- precomp -g -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes - Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -mdynamic- no-pic -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -I. -I/SourceCache/ gcc_os/gcc_os-1809/gcc -I/SourceCache/gcc_os/gcc_os-1809/gcc/. -I/ SourceCache/gcc_os/gcc_os-1809/gcc/config -I/SourceCache/gcc_os/ gcc_os-1809/gcc/../include -I/SourceCache/gcc_os/gcc_os-1809/gcc/../ more-hdrs ppc-rtl.c -o ppc-rtl.o In file included from ppc-rtl.c:26: /SourceCache/gcc_os/gcc_os-1809/gcc/ggc.h:279: warning: ISO C forbids forward references to `enum' types rm -f ppc-bitmap.c sed -e 's/config[.]h/hconfig.h/' /SourceCache/gcc_os/gcc_os-1809/gcc/ bitmap.c > ppc-bitmap.c cc -arch ppc -no-cpp-precomp -c -no-cpp-precomp -pipe -no-cpp- precomp -g -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes - Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -mdynamic- no-pic -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -I. -I/SourceCache/ gcc_os/gcc_os-1809/gcc -I/SourceCache/gcc_os/gcc_os-1809/gcc/. -I/ SourceCache/gcc_os/gcc_os-1809/gcc/config -I/SourceCache/gcc_os/ gcc_os-1809/gcc/../include -I/SourceCache/gcc_os/gcc_os-1809/gcc/../ more-hdrs ppc-bitmap.c -o ppc-bitmap.o In file included from ppc-bitmap.c:27: /SourceCache/gcc_os/gcc_os-1809/gcc/ggc.h:279: warning: ISO C forbids forward references to `enum' types rm -f ppc-ggc-none.c sed -e 's/config[.]h/hconfig.h/' /SourceCache/gcc_os/gcc_os-1809/gcc/ ggc-none.c > ppc-ggc-none.c cc -arch ppc -no-cpp-precomp -c -no-cpp-precomp -pipe -no-cpp- precomp -g -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes - Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -mdynamic- no-pic -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -I. -I/SourceCache/ gcc_os/gcc_os-1809/gcc -I/SourceCache/gcc_os/gcc_os-1809/gcc/. -I/ SourceCache/gcc_os/gcc_os-1809/gcc/config -I/SourceCache/gcc_os/ gcc_os-1809/gcc/../include -I/SourceCache/gcc_os/gcc_os-1809/gcc/../ more-hdrs ppc-ggc-none.c -o ppc-ggc-none.o In file included from ppc-ggc-none.c:27: /SourceCache/gcc_os/gcc_os-1809/gcc/ggc.h:279: warning: ISO C forbids forward references to `enum' types /SourceCache/gcc_os/gcc_os-1809/gcc/ggc.h:280: warning: ISO C forbids forward references to `enum' types rm -f ppc-errors.c sed -e 's/config[.]h/hconfig.h/' /SourceCache/gcc_os/gcc_os-1809/gcc/ errors.c > ppc-errors.c cc -arch ppc -no-cpp-precomp -c -no-cpp-precomp -pipe -no-cpp- precomp -g -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes - Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -mdynamic- no-pic -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -I. -I/SourceCache/ gcc_os/gcc_os-1809/gcc -I/SourceCache/gcc_os/gcc_os-1809/gcc/. -I/ SourceCache/gcc_os/gcc_os-1809/gcc/config -I/SourceCache/gcc_os/ gcc_os-1809/gcc/../include -I/SourceCache/gcc_os/gcc_os-1809/gcc/../ more-hdrs ppc-errors.c -o ppc-errors.o cc -arch ppc -no-cpp-precomp -no-cpp-precomp -pipe -no-cpp-precomp -g -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing- prototypes -Wtraditional -pedantic -Wno-long-long -mdynamic-no-pic - DHAVE_CONFIG_H -DGENERATOR_FILE -o genconstants \ genconstants.o gensupport.o dummy-conditions.o ppc-rtl.o read-rtl.o ppc-bitmap.o ppc-ggc-none.o \ ppc-errors.o ../libiberty/libiberty.a ld: Undefined symbols: ___guard ___stack_smash_handler gnumake[1]: *** [genconstants] Error 1 + status=2 + command set +x + set +x of particular interest to me is near the start where it says "Bootstrap complete", but the real problem is once again the undefined symbols. Of all the object files in the last cc, read-rtl.o requires the missing symbols. I've found in the past that by the time I email a list the solution pops into my head so this email is hopefully tempting fate, alternatively it might be gaps in my knowledge of gcc internals showing themselves up. I guess the last alternative is that I just need a short rap on the head with a clue stick to dislodge a thinko. Out of interest, I tried to build it with DarwinBuild[5] and it built without problems, but upon testing the front end ( gcc, g++ etc. ) were missing the -foptions, but the backend ( cc1 etc. ) had included my changes. I'm not sure if this is a problem with DarwinBuild, or this is the way Apple build it internally but it's a bit weird. [1] <http://www.opensource.apple.com/darwinsource/tarballs/other/ gcc-1495.tar.gz> [2] <http://optimist.sdf-eu.org/propolice/darwin7.2.1gcc-propolice.diff> [3] <http://www.opensource.apple.com/darwinsource/tarballs/other/ gcc_os-1809.tar.gz> [4] <http://optimist.sdf-eu.org/ssp/ssp-gcc_os-1809.diff> [5] <http://opendarwin.org/projects/darwinbuild/> This email sent to site_archiver(a)lists.apple.com

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Re: Link Error: Relocation overflow for relocation entry
by Bob Clark 23 Sep '05

23 Sep '05

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I am seeing one of my object files with a data section total of 70998 (kilobytes = 70Mb?) and a text section of 444606 (444Mb??). Is this the right way to look at it? I think that's correct. I have about 12 object files that have a greater size than 30000 data section. I have about 52 object files that have a greater size than 30000 text section. Could this be the problem? Perhaps I can break these files up...or recruit some other programmers to help with this stage of converting from CodeWarrior to Xcode. Thanks for any advice you can give me, I would like to avoid spending the DTS incident. I will if necessary. But if you replaced global variables like char gBigArray[1024*1024]; with stuff like char* gBigArray = NULL; then in the code do gBigArray = new char[1024*1024]; --Bob -- Bob Clark Clarkwood Software, LLC http://www.clarkwood.com/ Mac OS X Software _______________________________________________ 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… Do these sections have to be smaller than 32Mb? Both? I think you mentioned that you have a bunch of really big arrays. A brain-dead way to get past the linker might be to allocate those arrays (in the heap) at runtime. If you got really cutesy I suppose you could even set up C++ objects whose constructors allocated the arrays. you'd have your big array and it would live happily in the heap without obstructing the link. (This is mostly speculation though, since my problem ended up not really being because of humongous text sections.) This email sent to site_archiver(a)lists.apple.com

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