| Commit message (Collapse) | Author | Age | Files | Lines |
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* .cvsignore: Added stamp-h.in.
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* Makefile.am: Merge in rtems/Makefile.am and
rtems/score/Makefile.am. Remove gensize. Require automake-1.5.
* rtems/Makefile.am: Removed.
* rtems/score/Makefile.am: Removed.
* rtems/score/.cvsignore: Add unixsize.h*. Add stamp-h*.
* configure.ac: Add AM_CONFIG_HEADER(rtems/score/unixsize.h).
* rtems/score/cpu.h: Replace CPU_CONTEXT_SIZE_IN_BYTES with
SIZEOF_CPU_CONTEXT.
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* Makefile.am: Add multilib support.
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This was tracked as PR91.
* rtems/score/cpu.h: Added CPU_PROVIDES_ISR_IS_IN_PROGRESS macro which
is used to specify if the port uses the standard macro for this (FALSE).
A TRUE setting indicates the port provides its own implementation.
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* .cvsignore: Add autom4te.cache for autoconf > 2.52.
* configure.in: Remove.
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* .cvsignore: Add autom4te.cache for autoconf > 2.52.
* configure.in: Remove.
* configure.ac: New file, generated from configure.in by autoupdate.
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* rtems/score/Makefile.am: Use 'PREINSTALL_FILES ='.
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* rtems/score/cpu.h: Remove #undef __STRICT_ANSI__.
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* Makefile.am, rtems/score/Makefile.am:
Apply include_*HEADERS instead of H_FILES.
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* cpu.c, rtems/score/cpu.h: Bug report from Peter Mueller
<peter.o.mueller@gmx.de> because of not correcting for the ISR
vector table now being allocated from the workspace.
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* rtems/score/cpu.h: Added _CPU_Initialize_vectors().
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* Makefile.am: Use ... instead of RTEMS_TOPdir in ACLOCAL_AMFLAGS.
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* Makefile.am: Switch to ACLOCAL_AMFLAGS = -I $(RTEMS_TOPdir)/aclocal.
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* Makefile.am: ACLOCAL_AMFLAGS= -I $(RTEMS_TOPdir)/macros.
Switch to GNU canonicalization.
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* Makefile.am: Use += to set up AM_CPPFLAGS.
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* rtems/score/Makefile.am: Use PROJECT_TOPdir in path to gensize.
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* Makefile.am: Include compile.am.
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a BSP (c4xsim) supporting the simulator included with gdb. This port
was done by Joel Sherrill and Jennifer Averett of OAR Corporation.
Also included with this port is a space/time optimization to eliminate
FP context switch management on CPUs without hardware or software FP.
An issue with this port was that sizeof(unsigned32) = sizeof(unsigned8)
on this CPU. This required addressing alignment checks and assumptions
as well as fixing code that assumed sizeof(unsigned32) == 4.
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_Interrupt_Manager_initialization.
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adds .cvsignore.
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Ralf Corsepius <corsepiu@faw.uni-ulm.de> that contain:
* Modifications, (minor) corrections, cleanups to most existing
Makefile.ams
* Adds automake support to all remaining BSPs which have not yet been
converted to automake.
* Makefile.am for all remaining wrapup/Makefile.ams
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<corsepiu@faw.uni-ulm.de> which implements automake support for some
score/cpu/<RTEMS_CPU> subdirectories and fixes a few minor configuration
bugs.
To apply:
rm -rf c/src/exec/score/cpu/i960/wrap
rm -rf c/src/exec/score/cpu/m68k/wrap
rm -rf c/src/exec/score/cpu/sh/wrap
rm -rf c/src/exec/score/cpu/sparc/wrap
rm -rf c/src/exec/score/cpu/unix/wrap
patch -p1 < rtems-rc-19991123-rc-1.diff
./bootstrap
Known bugs:
* "make debug|profile" in c/src/src/score/cpu/<RTEMS_CPU/Makefile does
not handle recursion to subdirectories correctly (recurses too often).
However, this issue is hardly visible and should be tolerable for the
moment.
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port only uses System V IPC for shared memory and semaphores to
communicate between nodes in a multiprocessor configuration. If you
disable multiprocessing, then this code should be unused. Thus systems
like Cygwin which are POSIX but do not support System V IPC should
not work.
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unnecessarily uses any variables defined by the BSP. On this
sweep, use of BSP_Configuration and Cpu_table was eliminated.
A significant part of this modification was the addition of
macros to access fields in the RTEMS configuration structures.
This is necessary to strengthen the division between the BSP independent
parts of RTEMS and the BSPs themselves. This started after
comments and analysis by Ralf Corsepius <corsepiu@faw.uni-ulm.de>.
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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().
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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
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to correct a typo CPU_HAS_OWN_HOST_TO_NETWORK_ROUTINES was actually
typed in as CPU_CPU_HAS_OWN_HOST_TO_NETWORK_ROUTINES.
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> 4) rtems-rc-19990202-0.diff /reorg-score-cpu.sh
>
> reorg-score-cpu.sh reorganizes the cpu/<cpu>/* subdirectories in a
> similar manner than previous reorg scripts did. rtems-rc-19990202-0.diff
> contains the diffs after reorg-score-cpu.sh has been run on a
> rtems-19981215 snapshot + my patches up to rtems-rc-19990131-2.diff.
>
> This patch is rather nasty and may break something. However, I've tested
> it for about 10 different target/bsp pairs and believe to have shaken
> out most bugs.
I wonder about the following .h files that were not moved:
a29k/asm.h
a29k/cpu_asm.h
i386/asm.h
i960/asm.h
m68k/asm.h
m68k/m68302.h
m68k/m68360.h
m68k/qsm.h
m68k/sim.h
mips64orion/asm.h
mips64orion/cpu_asm.h
mips64orion/mips64orion.h
no_cpu/asm.h
no_cpu/cpu_asm.h
powerpc/asm.h
powerpc/mpc860.h
sh/asm.h
sparc/asm.h
sparc/erc32.h
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I just happened across the sync_io support in
c/src/exec/score/cpu/unix/cpu.c
(is this documented anywhere?). That looked more useful than the
signal driven I/O I was using before, so I tried it. I ran across a
few bugs in the way it uses select.
Select changes its fd_set arguments, so you can't use global variables
for them. You have to copy them into local variables first.
If select returns -1 with errno set to EINTR, then it has not changed
any of the fd_sets. You can't start looking at them.
When clearing a descriptor, the code has the usual select off by one
error when setting sync_io_nfds.
I don't see how this code could ever have worked correctly.
I have appended a patch for the problems I found.
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gcc-target-default.cfg
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It appears that the new glibc does not clear all the bits of the signal
set with a sigprocmask.
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the CPU family name constants.
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suggestion.
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in the unix port idle thread task. This should keep the entire application
from blocking when any component does a blocking application. Also added
TOD_MICROSECONDS_TO_TICKS.
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semctl was being invoked.
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GNU autoconf. This is the first large step in allowing an RTEMS
user to perform a one-tree build (per crossgcc FAQ) including RTEMS
in the build process. With this change RTEMS is configured in
built in the same style as the GNU tools, yet retains the basic
structure of its traditional Makefiles (ala Tony Bennett).
Jiri Gaisler (jgais@wd.estec.esa.nl) deserves (and received)
a big thank you for doing this.
There are still issues to be resolved but as of this commit, all target
which can be built on a linux host have been using a modified version
of the source Jiri submitted. This source was merged and most targets
built in the tree before this commit.
There are some issues which remain to be resolved but they are primarily
related to host OS dependencies, script issues, the use of gawk
for hack_specs, and the dependence on gcc snapshots. These will
be resolved.
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added CPU_STRUCTURE_ALIGNMENT to default context structures
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