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1999-07-26 Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:Joel Sherrill1-12/+0
This patch is an addition to "The big-patch" CHANGES: * FIX: c/Makefile.am: bogus comment which changed the behavior of c/Makefile.am removed * FIX: make/custom/ts_i386ex.cfg did not set HAS_NETWORKING correctly (Me thinks it might have been me who added this bogus setting :-). * NEW: removing make targets get, protos, debug_install, profile_install * NEW: replacing clobber with distclean * NEW: Reimplement distclean and clean as reverse depth first make targets (adaptation to automake's behavior) * NEW: removing RCS_CLEAN from make distclean (tools/build/rcs_clean is still in - remove it?) * NEW: "$(RM) Makefile" added to make distclean (adaptation to automake's behavior) * NEW: "$(RM) config.cache config.log" to CLOBBER_ADDITIONS in [lib|exec|tests]/Makefile.in (adaptation to automake's behavior) * NEW: "$(CLEAN_PROTOS)" removed (Not used anywhere) * NEW: binpatch.c moved from i386 bsp tools to tools/build (AFAIS, binpatch is not specific to the pc386 BSP at all) * NEW: AC_EXEEXT added to all configure scripts which contain AC_PROG_CC (Cygwin support) * NEW/Experimental: An experimental implementation of temporary installation tree support in libbsp/i386/pc386/tools/Makefile.am, based on dependency tracking with make, instead of applying INSTALL_CHANGE. REMARK: * This patch is small in size, but changes the behavior of "make clean|distclean|clobber" basically. * This patch does not alter building/compiling RTEMS, ie. there should be no need to rerun all "make all" building tests. KNOWN BUGS: * make RTEMS_BSP="..." distclean in c/ runs "make distclean" in BSPs subdirectories passed through RTEMS_BSP and in "c/." only, but does not descend into other BSP subdirectories previously configured with different settings of make RTEMS_BSP="...". => Workaround: always use the same setting of RTEMS_BSP when working inside the build-tree. * "make [distclean|clean]" do not clean subdirectories, which have been configured at configuration time, but which are not used due to make-time configuration (e.g. macros/networking/rdgb subdirectories). This will problem will vanish by itself when migrating from make-time to configuration-time configuration APPLYING THE PATCH mv c/src/lib/libbsp/i386/pc386/tools/binpatch.c tools/build patch -p1 < rtems-rc-19990709-2.diff autogen
1999-07-26This is part of a major patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>Joel Sherrill1-21/+204
to move RTEMS more to automake/autoconf and GNU compliance. Finally, here they are: the "big-patch" patches - merged into one big patch (~1.5MB). Sorry for the delay, but testing took much more time than I had expected - esp. reworking the acpolish script triggered many more tiny issues than I had expected (cf. below). At least, now you've got something to spend your weekend with :-. WARNINGS: * I've gone a little (??) further than I had announced before. * Several directories have been moved. * Several files have been added and removed * I have tested it with many BSPs/CPUs and a variety of permutiations of configuration flags, but not with all. * Most parts of the patch are automatically generated, however there are many tiny manual modifications. APPLYING THE PATCH: ./autogen -c mkdir tools mv c/src/exec/score/tools tools/cpu mv c/build-tools tools/build mv c/update-tools tools/update patch -p1 -E < rtems-rc-19990709-0.diff ./autogen If the patch doesn't apply to rtems-cvs, I would suggest that you should try to apply it brute-force and then to run tools/update/rtems-polish.sh -ac -am afterwards. A recursive diff between rtems-19990709 + patch and rtems-cvs + patch then should report only a few dozen significant changes to configuration files which need to be merged manually (IIRC, I did not change any source files). *** Attention: There are files to be removed, moved, copied and added in/to CVS! NEWS/CHANGES: 1. Configuration takes place in 3 stages: 1. per host (toplevel configure script), 2. per target (c/configure), 3. per bsp c/src/configure automatically triggered from ./configure and c/Makefile.am. 2. Building of subdirectory c/ takes place in c/$(target_alias) for cross-targets in c/ for native targets 3. Building of subdirectory c/src takes place in c/${target_alias}/<bsp> for cross-targets, c/<bsp> for native targets 4. c/build-tools moved to tools/build 5. c/src/exec/score/cpu/tools moved to tools/cpu (=cpu-tools split out) 6. c/update-tools moved to tools/update 7. New subdirectory c/src/make, handles files from make/ on a per BSP basis 8. Maintainer mode support: Ie. if configuring with --enable-maintainer-mode disabled (the default), then tracking of many dependencies will be disabled in Makefiles. Esp. many dependencies for auto* generated files will be switched off in Makefiles. Ie. if not using "--enable-maintainer-mode" many auto* generated files will not be updated automatically, i.e. normal users should not be required to have auto* tools anymore (untested). 9. Independent configuration scripts for / (toplevel), tools/build, tools/cpu, tools/update, c/, c/src/, c/src/exec, c/src/lib, c/src/tests, c/src/make 10. Automake support for all directories above and besides c/src 11. "preinstall" now is implemented as depth-first recursive make target 12. host compiled tools (exception bsp-tools) are accessed in location in the build tree instead of inside the build-tree when building RTEMS. 13. RTEMS_ROOT and PROJECT_ROOT now point to directories inside the build-tree - many tiny changes as consequence from this. 14. --with-cross-host support removed (offically announced obsolete by cygnus) 15. Changing the order of building libraries below c/src/lib/ 16. Former toplevel configure script broken into aclocal/*.m4 macros 17. Newlib now detected by configure macros, RTEMS_HAS_NEWLIB removed from *cfg. 18. sptables.h now generated by autoconf 19. Rules for "mkinstalldirs temporary installation tree" moved from c/Makefile to subdirectories. 20. Cpu-tools do not get installed. 21. FIX: Use ACLOCAL_AMFLAGS instead of ACLOCAL = -I ... in Makefile.ams which are in directories with own configure scripts. 22. Hardcoding BSP names into libbsp/.../tools to avoid RTEMS_BSP get overridden from the environment. 22. FIX: Handling of MP_PIECES in various Makefiles 23. FIX: Removing "::" rules from some Makefile.ins 24. FIX: File permission chaos: (-m 444 and -m 555 vs. -m 644 and -m 755) - Now all include files use -m 644. 25. Removed many gnumake-conditionals in Makefile.ins - Partially replaced with automake-conditional, partially replaced with conditionalized Makefile variables (... _yes_V) 26. Massively reworked acpolish: acpolish now parses Makefile.ins and interprets parts of the Makefile.ins. 27. FIX: Some $(wildcard $(srcdir)/*.h) macros removed / replaced with explicit lists of files in Makefile.ins. 28. FIX: Replacing MKLIB with RANLIB in Makefile.ins 29. HACK: Add preinstallation for pc386 specific $(PROJECT_RELEASE)/BootImgs directory ... many more details, I can't recall KNOWN BUGS: 1. make [debug|profile]_install do not do what they are promissing. "make [debug|profile] install" does what "make [debug|profile]_install" has been doing. Proposal: remove [debug|profile]_install 2. Dependencies between temporary installation tree and source tree are not yet handled correctly. 3. Dependencies between temporary installation tree and source tree are handled ineffencently (Using INSTALL_CHANGE instead of make dependencies) 4. RTEMS_ROOT, PROJECT_ROOT, top_builddir, RTEMS_TOPdir now are redundant. 5. The new configure scripts still are in their infancy. They contain redundant checks and might still contain bugs, too. 6. RTEMS autoconf Makefile.ins use a mixture of configuration information gathered in c/$(target_alias)/<bsp>/make and of information collected from their configure scripts. 7. make dist is not fully functional 8. Subdirectory host-/build-/target- configure options (--target, --host, --build) do not conform to Cygnus/GNU conventions. 9. Some RTEMS autoconf Makefile.in's makefile targets are not supported in automake Makefile.ams/ins (e.g. get, clobber). 10. Some automake standard targets are not propagated from toplevel and c/Makefile.am to autoconf subdirectories (eg. make dist). 11. rpcgen generated files are not part of the source-tree (Automake conventions favor supplying generated files inside the source-tree, however there is no support for rpcgen generated files in automake, cf. yacc/lex support in automake). 12. RTEMS_HAS_RDBG handling is flaky. make/*.cfg use RTEMS_HAS_RDBG per CPU, while librdb's sources can only be built per BSP. Raises the more general question whether librdbg located correctly in the source-tree. 13. All make/*cfg files are configured per cpu, currently there is no location to store per-bsp configuration information --> bsp.cfg, per aconfig.h? 14. "make install" without having run "make all" beforehand does not work. 15. handling of --enable-multiprocessing seems to be broken in make/custom/* 16. Makefile.ins still exploit many gmake features. 17. File permisson chaos on libraries (no explict -m for libraries/rels/etc). 18. mcp750 Makefiles are broken (Note: I *do* mean buggy - I am not talking about "not-conforming to conventions", here :-). 19. Dependencies between configure scripts are not handled, eg. aborting "make RTEMS_BSP=<bsp>" can leave the build-tree in an unusable state. 20. "make clean" does not delete <build-tree>/<bsp>. This is intentional for now, because rerunning "make" after "make clean" requires an explicit "make preinstall" afterwards now. This should be done automatically, but doesn't work in this case for now. To work around this problem <build-tree>/<bsp> is kept during "make clean" for now (HACK). TODO: 1. split out host-compiled bsp-tools 2. Use Cygnus/GNU standards for cross-compiling target-subdir (CC=CC_FOR_TARGET .. configure --host=${target_alias} --build=`config.guess'}), to be added to toplevel configure script after splitting out bsp-tools. 3. Exploit per cpu support directory (c/src/<cpu>)- Splitting out per-cpu libraries - Are there any? 4. Further automake support 5. Converting subdirectories into standalone / self-contained subdirectories (Esp. moving their headers to the same common root as their sources, eg. mv lib/include/rtems++ lib/librtems++/include/rtems++) - This is the main obstacle which prevents moving further towards automake. 6. Propagating values from *.cfg into Makefiles instead of propagating them at make time via Makefile-fragments (i.e. try to avoid using *.cfg). 7. Testing on cygwin host (I *do* expect cygwin specific problems). 8. The ARCH in o-$(ARCH)-$(VARIANT) build-subdirectories is not needed anymore. GENERAL ISSUES: 1. Temporary installation tree -- Ian and I seem to disagree basically. Though I think that I understand his argumentation, I do not share it. IMO, his way of using the buildtree is mis-using the build-tree, relying on an inofficial feature of RTEMS's current implementation, which doesn't even work correctly in the current build-tree, though it attempts hard to do so. From my very POV, it unnecessarily complicates the structures of the source- and build-trees. It is not supported by automake (No automatic generation for the necessary rules) and complicates the transition to automake significantly (Generating the rules with an enhanced version of acpolish could be possible). As Ian correctly pointed out, here a management decision is needed - though I don't see the need to draw this decision in short terms. 2. preinstallation generally is a sure means to spoil the structure of the source tree, IMHO (No ranting intended, I am completly serious about this one). eg. through tree dependencies. The worst problem related to this I have found in the meantime is bsp_specs. bsp_specs is part of libbsp, ie. there is *no* way to build *any* part of the source tree *without* having a BSP *preinstalled*. Note: This issue is related to issue 1., but is not identical - The difference is the change of the order make rules have to be triggered. While preinstallation triggers rules spread all over the source tree before a "make all" can be run, a temporary installation tree could also be installed by post "make all" hooks (all-local:, to be run after make all in a directory is completed) if the directories' dependencies would be a tree, 3. Stuctural dependencies between subdirectories. 4. Depth of the source tree (Prevents multilibbing and introduces many unnecessary configure scripts). 5. per cpu vs. per bsp configuration (There are no real per-cpu parts yets :-). 6. automake does not support $makefiles in AC_OUTPUT. Unlike before, we now should try to avoid RTEMS_CHECK_MAKEFILE and to hard-code as much paths to Makefiles as possible. 7. General redesign of the source tree 8. Main installation point - Changing it to ${prefix}/${target_alias}. ? Besides item 8. (which is a must, IMHO), as far as I see most of them can not be solved soon and will remain issues in the mid- to long-term :-. REMARKS: * You (as the maintainer) should always use --enable-maintainer-mode when building RTEMS to ensure that maintainer mode generated files (esp. those in c/src/make) will be updated when make/* files have changed. * Use @RTEMS_BSP@ in Makefile.ins and Makefile.ams below c/src/, $(RTEMS_BSP) or ${RTEMS_BSP} will be overridden from environment variables when using make RTEMS_BSP="....". * c/src/make is a temporary cludge until configuration issues are solved. At the moment it is configured per bsp, but contains per-target/cpu info only. Its main purpose now is to circumvent modifying make/*.cfg files, because I consider make/* to be frozen for backward compatibilty. * This patch should only affect configuration files. At least I do not remember having touched any source files. * To build the bare bsp you now need to mention it in --enable-rtemsbsp. Example: building gensh1 and sh1/bare simultaneously: ../rtems-rc-19990709-1/configure --target=sh-rtems \ --enable-rtemsbsp="bare gensh1" \ --prefix=/tmp/rtems \ --enable-bare-cpu-cflags='-DMHZ=20 -m1 -DCPU_CONSOLE_DEVNAME=\"/dev/null\"' \ --enable-bare-cpu-model=sh7032 \ --enable-maintainer-mode \ --enable-cxx make make install * The next steps in development would be to split out bsp-tools and then to change to Cygnus/GNU canonicalization conventions for building the c/ subdirectory afterwards (i.e. many standard AC_*.m4 macros could be used instead of customized versions) FINAL REMARK: The issues mentioned in the lists above sound much worser than the situation actually is. Most of them are not specific to this patch, but are also valid for the snapshot. I just wrote down what I came across when working on the patch over the last few weeks. I wouldn't be too surprised if you don't like the patch at the current point in development. I am willing to discuss details and problems, I also have no problem if you would post-pone applying this patch to times after 4.1, but rejecting it as a whole for all times would be a false management decision, IMHO. Therefore I would suggest that you, if your time constaints allow it, should at least play a little while with this patch to understand what is going on and before drawing a decision on how to handle this proposal. I know this patch is neither perfect nor complete, but I consider it to be a major breakthrough. Don't be anxious because of the size of the patch, the core of the patch is rather small, the size is mainly the side effect of some systematic cleanups inside the Makefiles (result of acpolish). Feel free to ask if you encounter problems, if you don't understand something or if you meet bugs - I am far from being perfect and am prepared to answer them. Ralf. -- Ralf Corsepius Forschungsinstitut fuer Anwendungsorientierte Wissensverarbeitung (FAW) Helmholtzstr. 16, 89081 Ulm, Germany Tel: +49/731/501-8690 mailto:corsepiu@faw.uni-ulm.de FAX: +49/731/501-999 http://www.faw.uni-ulm.de
1999-07-15Added shell of information on resources for embedded information.Joel Sherrill3-1/+44
1999-07-15Corrections from Chris Johns <ccj@acm.org>.Joel Sherrill1-4/+4
1999-07-15Added information on hardware to aid in debugging. Primarily this isJoel Sherrill5-4/+95
information on gdb and bdm for the MPC8xx, MC683xx, and ColdFire.
1999-07-14New file.Joel Sherrill1-0/+19
1999-07-13Added comment on where this manager came from.Joel Sherrill1-1/+2
1999-07-13Update from Jeff Mayes, Jennifer Averett, and Suzie Provitt.Joel Sherrill1-17/+160
1999-07-13Update including fixes for my comments from Xiangyang Wu <wux@cspar.uah.edu>Joel Sherrill1-734/+858
and xing@ebs330.eb.uah.edu.
1999-07-13Added section on Free Software that Supports RTEMS.Joel Sherrill3-1/+79
1999-07-09changed version to 19990709Joel Sherrill1-1/+1
1999-07-09Updated versionJoel Sherrill3-11/+11
1999-07-09Added information on the workspace versus heap.Joel Sherrill1-0/+5
1999-07-08Some cleanup to make it format better. Compensated for multiple servicesJoel Sherrill1-31/+142
on a single page.
1999-07-08First draft from Xiangyang Wu <wux@cspar.uah.edu>.Joel Sherrill1-12/+351
1999-07-06From Fei Ling <fling@cs.uah.edu>.Joel Sherrill1-19/+524
1999-07-03Added a lot of information on confdefs.tJoel Sherrill1-16/+367
1999-07-03Added documentation on "two new SOL_SOCKET level options for setsockopt andJoel Sherrill2-4/+68
getsockopt: SO_SNDWAKEUP and SO_RCVWAKEUP" from Ian Lance Taylor <ian@airs.com>.
1999-07-03Removed concept of distribution level.Joel Sherrill27-35/+10
1999-07-03Changed System Database routines to implemented.Joel Sherrill1-10/+10
1999-07-01Added error status for bad return pointer argument on rtems_task_set_priority.Joel Sherrill1-0/+1
1999-07-01Corrected formatting so argument was in code font.Joel Sherrill1-1/+1
1999-07-01Fixed reference to initialize_executive to use the current name.Joel Sherrill1-1/+2
1999-07-01Filled in.Joel Sherrill1-10/+30
1999-07-01Cleaned up and much neater.Joel Sherrill1-19/+33
1999-06-18Corrected and fleshed out.Joel Sherrill1-43/+2
1999-06-15Directives -> services.Joel Sherrill1-4/+4
1999-06-15Some stuff added.Joel Sherrill1-38/+131
1999-06-15Significantly enhanced. At least the per routine pages for this chapterJoel Sherrill1-59/+349
are now filled in.
1999-06-11Added information on pathname evaluation.Joel Sherrill1-1/+14
1999-06-04Significantly cleaned up to make a much better starting point for theJoel Sherrill13-249/+361
class.
1999-06-04Added much of the text required to turn this into a real chapter.Joel Sherrill1-52/+195
1999-05-26New file.Joel Sherrill1-0/+4
1999-05-26Made the gen_section more accurate.Joel Sherrill13-253/+257
1999-05-26Prototypes are now based on how the TRON specification states them.Joel Sherrill11-83/+166
The style in the output is not right but it is a good starting point.
1999-05-26Basic prototypes are now included.Joel Sherrill1-1/+6
1999-05-26Regenerated to include more information in the stub. Now they haveJoel Sherrill12-180/+184
the descriptive titles.
1999-05-26Changed word "directive" to "system call."Joel Sherrill1-1/+1
1999-05-26Added error codes to all service callsJoel Sherrill1-14/+190
1999-05-26Corrected error code section.Joel Sherrill12-168/+0
1999-05-26Replaced error code section.Joel Sherrill12-252/+84
1999-05-26Enhanced.Joel Sherrill1-63/+156
1999-05-20Initial revisionJoel Sherrill16-0/+4561
1999-05-14Fixed typo.Joel Sherrill1-1/+1
1999-05-14Added tool hints.Joel Sherrill3-1/+12
1999-05-14New file.Joel Sherrill1-0/+47
1999-04-23Fixed Makefile to avoid copying the file to a new name.Joel Sherrill1-1/+0
1999-04-23Changed date.Joel Sherrill7-28/+27
1999-04-23Switched to full doc set.Joel Sherrill1-1/+30
1999-04-20Updated to reflect inclusion of IRQ test in ada examples.Joel Sherrill1-3/+7