Commit Graph

811 Commits

Author SHA1 Message Date
Joel Sherrill
a6883c4eb9 Spacing. 1999-10-12 20:22:27 +00:00
Joel Sherrill
51435fc7c5 Split null handlers table to own file and renamed.
Renamed IMFS handler tables to include IMFS prefix.
1999-10-12 19:26:37 +00:00
Joel Sherrill
dd0f32614c Added rtems_filesystem_freenode() macro and added calls at appropriate
places to make sure memory allocated for filesystem specifif nodes
gets freed.
1999-10-12 19:10:46 +00:00
Joel Sherrill
e2116f9003 Fixed spacing. 1999-10-12 19:09:27 +00:00
Joel Sherrill
578a415014 Corrected mistakes in the IMFS file handlers table and added the missing
routine imfs_fcntl.c
1999-10-12 19:08:55 +00:00
Joel Sherrill
d71fcabaa6 Added call to freenod to let each filesystem free its own internal
node used to manage file access.
1999-10-12 18:44:40 +00:00
Joel Sherrill
cb5056b387 Changed bcopy to strncpy to stick to ANSI/ISO routines. 1999-10-12 18:44:05 +00:00
Joel Sherrill
c1b12e6a41 Moved RTEMS error and association from libmisc to libc support to
avoid cyclic dependencies generated when moving packages to the
top level.
1999-10-11 18:31:48 +00:00
Joel Sherrill
45269dc902 Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> to move librdbg
to its own top level package.
1999-10-11 15:34:26 +00:00
Joel Sherrill
4a4efb5fde New directive added -- rtems_task_is_suspended. 1999-10-07 16:26:31 +00:00
Joel Sherrill
1e3e81fdb6 Added Is_Suspended method. 1999-10-07 16:17:41 +00:00
Joel Sherrill
ddaa60fd86 New file. 1999-10-06 21:08:14 +00:00
Joel Sherrill
1b8212423d Modified to avoid conflicts on definitions of malloc. newlib 1.8.2
now prototypes the malloc family in stdlib.h.  This causes conflicts
with the way the network stack overrides the definitions of malloc.
As best I (being Joel) can tell, commenting stdlib.h out keeps the
files compiling and referencing the desired malloc/free but results
in more warnings.
1999-10-06 20:37:26 +00:00
Joel Sherrill
8dd127620b Removed go32 ifdefs 1999-10-05 19:21:34 +00:00
Joel Sherrill
30f7ff91fc Removed targets and configurations that are no longer functional
and not likely to become so.  Comments on each configuration
are below.

  + Force CPU386 - This BSP was developed as part of the initial
    port of RTEMS to the i386.  This board has been unavailable
    for a long time now.

  + GO32 - This BSP and some CPU code supported djgpp v1.x.  This
    version is now quite old.  No one has stepped forward to
    update the code to v2.x which may be technically impossible
    anyway.  More importantly, go32 has been superceded by the pc386 BSP.
1999-10-05 19:11:57 +00:00
Joel Sherrill
0139484fbd Patch from Wayne Bullaughey <wayne@wmi.com>. Comments follow:
I'm working on code to mount my host based file system on the base file
  system (imfs) and have a suggestion for a change to eval.c in the
  c/src/lib/libc directory of the 8/20/1999 snapshot.  The current version
  does not test the result value returned from the evalpath callback (line 47)
  in the case where follow_link is true.  Attached is my suggested change.
  Without this test the node_type callback may be called after evalpath
  failed.  node_type could set the type to some value other then
  RTEMS_FILESYSTEM_HARD_LINK or RTEMS_FILESYSTEM_SYM_LINK but it seems cleaner
  to add the check on result.
1999-10-05 16:34:20 +00:00
Joel Sherrill
d83c39dc36 Bug report and fix from Jay Kulpinski <jskulpin@eng01.gdds.com> where
sigemptyset(&old_mask) needed to be added on glibc2 systems.  Ian
Lance Taylor pointed out that sigemptyset() is portable so Joel removed
all conditionals around calls to sigemptyset().
1999-10-05 13:08:41 +00:00
Joel Sherrill
811804fec8 Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> to make fix bug
where wrapup left pieces out of the librtemsall.a.
1999-10-04 19:15:14 +00:00
Joel Sherrill
0efa9f01f8 Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> to make fix bug
where wrapup left pieces out of the librtemsall.a.
1999-10-04 18:53:31 +00:00
Joel Sherrill
cc63e08130 Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> to make libnetworking
a top level more independently configured package.
1999-10-04 18:40:53 +00:00
Joel Sherrill
5a83ba24bd Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:
The patch below actuallly consists of two patches:
1) moving librpc to c/src/librpc similar to what has been done to librtems++
2) reworked configure scripts, many safety and dependency checks added to
aclocal/*.m4 macros + configuration fixes.

To apply:

mkdir c/src/librpc
mkdir c/src/librpc/src
cp c/src/lib/librpc/*.c c/src/librpc/src
cp c/src/lib/librpc/Makefile.in c/src/librpc/src
mkdir c/src/librpc/include
mkdir c/src/librpc/include/rpc
cp c/src/lib/include/rpc/* c/src/librpc/include/rpc
patch -p1 < ../rtems-rc-19990820-7.diff
rm -rf c/src/lib/librpc
rm -rf c/src/lib/include/rpc
./autogen

The additional checks in aclocal/*m4 macros add rather restrictive, sometimes
unnecessarily restrictive constraints on the sequence of how macros can be
used in a configure.in script. Adding them has let my problems with some more
complicated configuration options vanish. Apparently some macros had not been
in the required order .

----

Now I still get some linking errors for some cpus and bsps, esp when linking
cdtest, but also at other locations:

e.g. this happens for mips64orion/p4600:

# make[5]: Entering directory
`/lfs/poseidon/users/rtems/src/multi/build/mips64orion-rtems/c/p4600/tests/samples/hello'

/opt/rtems/bin/mips64orion-rtems-gcc --pipe -B../../../../../../p4600/lib/
-specs bsp_specs -qrtems -DP4000 -DCPU_R4000 -DP3_DIAG -D_R4000 -D__mips=3
-mcpu=4600 -G0   -I../../../../../../p4600/lib/include/networking  -g -Wall
-ansi -fasm  -O4 -fomit-frame-pointer     -o o-p4600/hello.exe
o-p4600/init.o ../../../../../../p4600/lib/no-dpmem.rel
../../../../../../p4600/lib/no-event.rel
../../../../../../p4600/lib/no-msg.rel ../../../../../../p4600/lib/no-mp.rel
../../../../../../p4600/lib/no-part.rel
../../../../../../p4600/lib/no-signal.rel
../../../../../../p4600/lib/no-timer.rel
../../../../../../p4600/lib/no-rtmon.rel
/opt/rtems/mips64orion-rtems/lib/libc.a(dtoa.o): In function `_dtoa_r':
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
collect2: ld returned 1 exit status

# mips64orion-rtems-gcc -v
Reading specs from /opt/rtems/lib/gcc-lib/mips64orion-rtems/2.95.1/specs
gcc version 2.95.1 19990816 (release)

# mips64orion-rtems-ld -v
GNU ld version 2.9.5 (with BFD 2.9.5)
1999-10-04 18:33:17 +00:00
Joel Sherrill
b62a92c804 Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:
The patch below actuallly consists of two patches:
1) moving librpc to c/src/librpc similar to what has been done to librtems++
2) reworked configure scripts, many safety and dependency checks added to
aclocal/*.m4 macros + configuration fixes.

To apply:

mkdir c/src/librpc
mkdir c/src/librpc/src
cp c/src/lib/librpc/*.c c/src/librpc/src
cp c/src/lib/librpc/Makefile.in c/src/librpc/src
mkdir c/src/librpc/include
mkdir c/src/librpc/include/rpc
cp c/src/lib/include/rpc/* c/src/librpc/include/rpc
patch -p1 < ../rtems-rc-19990820-7.diff
rm -rf c/src/lib/librpc
rm -rf c/src/lib/include/rpc
./autogen

The additional checks in aclocal/*m4 macros add rather restrictive, sometimes
unnecessarily restrictive constraints on the sequence of how macros can be
used in a configure.in script. Adding them has let my problems with some more
complicated configuration options vanish. Apparently some macros had not been
in the required order .

----

Now I still get some linking errors for some cpus and bsps, esp when linking
cdtest, but also at other locations:

e.g. this happens for mips64orion/p4600:

# make[5]: Entering directory
`/lfs/poseidon/users/rtems/src/multi/build/mips64orion-rtems/c/p4600/tests/samples/hello'

/opt/rtems/bin/mips64orion-rtems-gcc --pipe -B../../../../../../p4600/lib/
-specs bsp_specs -qrtems -DP4000 -DCPU_R4000 -DP3_DIAG -D_R4000 -D__mips=3
-mcpu=4600 -G0   -I../../../../../../p4600/lib/include/networking  -g -Wall
-ansi -fasm  -O4 -fomit-frame-pointer     -o o-p4600/hello.exe
o-p4600/init.o ../../../../../../p4600/lib/no-dpmem.rel
../../../../../../p4600/lib/no-event.rel
../../../../../../p4600/lib/no-msg.rel ../../../../../../p4600/lib/no-mp.rel
../../../../../../p4600/lib/no-part.rel
../../../../../../p4600/lib/no-signal.rel
../../../../../../p4600/lib/no-timer.rel
../../../../../../p4600/lib/no-rtmon.rel
/opt/rtems/mips64orion-rtems/lib/libc.a(dtoa.o): In function `_dtoa_r':
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
collect2: ld returned 1 exit status

# mips64orion-rtems-gcc -v
Reading specs from /opt/rtems/lib/gcc-lib/mips64orion-rtems/2.95.1/specs
gcc version 2.95.1 19990816 (release)

# mips64orion-rtems-ld -v
GNU ld version 2.9.5 (with BFD 2.9.5)
1999-10-04 18:20:14 +00:00
Joel Sherrill
6fca2f5568 Patch from Eric Norum <eric@cls.usask.ca>. Comments follow:
The old system would panic when the loopback interface was included as
    part of the network initialation structures.  With the printf you get an
    message, but the interface is still properly initialized.
1999-10-04 13:51:22 +00:00
Joel Sherrill
3cad291962 Addition of more functionality by Eric Norum to support GNU readline. 1999-10-01 15:55:30 +00:00
Joel Sherrill
e1d8abbe28 Applied patch rtems-rc-19990820-6.diff.gz from
Ralf Corsepius <corsepiu@faw.uni-ulm.de> which converted many
Makefile.in's to Makefile.am's.  This added a lot of files.
1999-09-07 13:45:03 +00:00
Joel Sherrill
260b0c2155 Patch from Charles-Antoine Gauthier <charles.gauthier@iit.nrc.ca> to add
support for return codes from POSIX threads that do an implicit exit
by returning from the bottom of the main function.
1999-08-30 18:05:48 +00:00
Joel Sherrill
e49d7c3df2 Removed definition of NO_IMPLICIT_EXTERN_C since it is supposed to be
in the compiler not in the header file.
1999-08-30 15:02:20 +00:00
Joel Sherrill
d392168a49 Typo causing compilation failure spotted by Ralf Corsepius and
fixed by Joel.
1999-08-26 21:14:20 +00:00
Joel Sherrill
e0c6f431b6 Comment cleanup from Eric Norum <eric@cls.usask.ca>. 1999-08-26 20:52:40 +00:00
Joel Sherrill
48abdc31fd Patch from Eric Norum <eric@cls.usask.ca> to readd the behavior where
the minor number indicated the port number to try.
1999-08-23 14:58:16 +00:00
Joel Sherrill
71f16a4499 Support for MPC505 from Sergei Organov <osv@Javad.RU>. His patch was
against 3.6.0 so was painful to merge.  It should be OK but there
is no guarantee and there are no BSPs in the tree to exercise it.
1999-08-19 22:07:00 +00:00
Joel Sherrill
f2180e0f05 Patch from Jimen Ching <jimen@adtech-inc.com>:
Please take a look at this new patch.  It contains a cleaner implementation
of the reset operation.  These patches are against 4.0.0.  But the files
did not change from the 3.6.0 release.  Also, the cpu.h patch below still
applies.  I.e. instead of using i960ca_PRCB, use i960_PRCB.

Explanation:

        The previous patch removed the use of the reset instruction,
        because it always fails.  But this was due to the fact that
        some of the registers were corrupted by the re-init procedure.
        The new patches save and restore those registers when a re-init
        is done.
1999-08-18 20:00:05 +00:00
Joel Sherrill
e8367362ca Slightly cleaner way to switch on the CPU model. 1999-08-18 19:57:40 +00:00
Joel Sherrill
6fc973e39b Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:
Here is another fix, which addresses a few more or less severe bugs in
    configuration and unix/posix:

    * Configuration fix: c/src/lib/configure.in didn't handle RDBG correctly

    * Configuration fix: make depend was non-functional in
      c/src/lib/libc/Makefile.in
    * Configuration fix: stray comment removed from aclocal/target.m4

    * RTEMS fix: termios support for unix/posix now uses the host's headers
      only (was completely broken).
    - Don't install RTEMS's newlib sys/termios.h for unix (sys/termios.h
      apparently is a newlib specific header)
    - To be able to compile RTEMS's  termios.c with glibc2.1, glibc-2.1
      needs __USE_MISC, which is a private define from gcc's features.h, being
      defined only when _BSD_SOURCE of _SVID_SOURCE is defined.  RTEMS's
      termios apparently implements BSD, thus -D_BSD_SOURCE was added to
      Linux-posix.cfg.
    - Conflicting definitions for  __USE_MISC and _BSD_SOURCE inside of
      RTEMS codes removed due to definition of _BSD_SOURCE on the toplevel.

    This fix has been tested with linux/posix (primary glibc2.1 native),
    linux/posix (secondary libc5 native), sh/gensh1, i386/pc386 and a couple
    of other bsp's/CPU.

    To apply:

        cd <srcdir>
        patch -p1 < rtems-rc-19990709-9.diff

    and
        aclocal -I aclocal && automake && autoconf
        cd c/src/lib; autoconf

    or
        ./autogen
1999-08-18 16:49:52 +00:00
Joel Sherrill
ea562ee977 Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:
After upgrading my linux box to the brand new SuSE 6.2 release, which is
    glibc-2.1 based, I came across a bug in RTEMS - IIRC, I even warned you
    about it about 1/2 a year ago, but nothing has been done since then :-.

    The *.m4 macros to check for SYSV/IPC are broken for linux/glibc2.1,
    because they assume that linux always defines union semun, which isn't
    true anymore for glibc2.1 (the manpage for semctl states _X_OPEN
    specifies it this way). Therefore I have tried to implement a more
    general approach for handling SYSV for unix/posix which checks for
    presence of struct semun, instead of trying  to evaluate OS specific
    preprocessor symbols.

    This approach is a bit adventureous, because I only tested it with
    linux/glibc2.1 and linux/libc5, but not under other Unix variants RTEMS
    supports. I am quite confident it will work on other hosts, too, but who
    knows :-.

    [FYI: I think this might also is the cause of some problems with RedHat
    6.X / Mandrake linux recently reported on the rtems list -- rtems-4.0.0
    can not be build for posix on any glibc2.1 based host]

    Furthermore the patch below contains a couple of minor fixes and
    configuration cleanups, which IMO should be applied before releasing a
    new snapshot.

    To apply this patch:

        cd <source-tree>
        patch -p1 < rtems-rc-19990709-8.diff
        ./autogen
1999-08-12 18:22:17 +00:00
Joel Sherrill
2fe7208306 Added NO_IMPLICIT_EXTERN_C at suggestion of Jason Merrill. 1999-08-10 15:02:23 +00:00
Joel Sherrill
6805640ec7 Patch from Charles-Antoine Gauthier <charles.gauthier@iit.nrc.ca>
to correct a typo CPU_HAS_OWN_HOST_TO_NETWORK_ROUTINES was actually
typed in as CPU_CPU_HAS_OWN_HOST_TO_NETWORK_ROUTINES.
1999-07-29 23:01:15 +00:00
Joel Sherrill
f94e76ba02 Fix after this report from Peter Pointner <pr@schenk.isar.de>:
Problem: a posix thread which is created by

      pthread_attr_init(&tattr);
      pthread_attr_setinheritsched(&tattr, PTHREAD_EXPLICIT_SCHED);
      pthread_attr_setschedpolicy(&tattr, SCHED_RR);
      pthread_create(&th, &tattr, func, arg);

    has a first timeslice of 2^32 ticks (changing a running thread to
    SCHED_RR id ok).

    I use RTEMS-4.0.0. I am not sure if the problem exists in the current CVS
    head revision. If it's not fixed, the patch at the end should do it.

Peter


--- pthreadcreate.c.orig        Wed Jul 28 14:45:58 1999
+++ pthreadcreate.c     Wed Jul 28 15:06:09 1999
@@ -199,6 +199,10 @@
   api->schedpolicy = schedpolicy;
   api->schedparam  = schedparam;

+  if ( schedpolicy == SCHED_RR ) {
+    the_thread->cpu_time_budget = _Thread_Ticks_per_timeslice;
+  }
+
   /*
    *  This insures we evaluate the process-wide signals pending when we
    *  first run.
1999-07-28 18:03:20 +00:00
Joel Sherrill
6693a68ffa This is part of a major patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>
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
1999-07-26 20:00:37 +00:00
Joel Sherrill
09ea257c58 Patch from Eric Norum <eric@cls.usask.ca>:
I get the following warning when compiling the latest snapshot.  I had
a quick look at the source -- it certainly looks to me like this is a
real bug.

../../../../src/rtems-19990709/c/src/lib/libc/mount.c:97: warning:
`options' might be used uninitialized in this function

Also, I changed the TFTP test program and TFTP driver to reflect the
changes in the way paths are passed to the TFTP driver.  The TFTP driver
now needs a proper `dotted-decimal' hostname as the second component of
the path name.
1999-07-12 15:52:35 +00:00
Joel Sherrill
2728b0749d New file from Jake Janovetz <janovetz@tempest.ece.uiuc.edu>. 1999-07-09 17:23:15 +00:00
Joel Sherrill
b73e57bffe Patch from Jiri Gaisler <jgais@ws.estec.esa.nl>:
+ interrupt masking correction
  + FPU rev.B workaround
  + minor erc32 related fixes
1999-07-09 17:08:48 +00:00
Joel Sherrill
cc17eba0cb Make sure pthread init stack size is always set. 1999-07-09 16:56:34 +00:00
Joel Sherrill
adbb578abb Moved definitions to a more logical place. 1999-07-08 22:45:07 +00:00
Joel Sherrill
a0a225f4aa Added code to initialize the /etc/group and /etc/passwd files. 1999-07-02 18:50:40 +00:00
Joel Sherrill
c51917f304 Fixed format strings and warnings. 1999-07-02 18:09:03 +00:00
Joel Sherrill
c3d20eba96 Reentrant versions added by Joel. Signficant formatting cleanup. 1999-07-02 18:03:43 +00:00
Joel Sherrill
258fd794fd Password and group routines added by Ralf Corsepius <corsepiu@faw.uni-ulm.de>. 1999-07-02 17:13:27 +00:00
Joel Sherrill
ed1a0e51b3 Honor 0 as PID of caller. 1999-07-01 22:57:23 +00:00
Joel Sherrill
51e04a2c7f New file to implement signal(2). 1999-07-01 22:28:30 +00:00