| Commit message (Collapse) | Author | Age | Files | Lines |
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_Interrupt_Manager_initialization.
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to be consistent with other ports.
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Hitachi H8 family. This port was done by Philip Quaife
<philip@qs.co.nz> of Q Solutions and sponsored by
Comnet Technologies Ltd. The port was done based on RTEMS 3.5.1
to a Hitach H8300H. The port was updated to RTEMS 4.5 style
Makefiles/configure by Joel Sherrill <joel@OARcorp.com>.
While doing this Joel added support for the h8300-rtems to
binutils, gcc, newlib, and gdb.
NOTE: Philip submitted a BSP for a Hitachi evaluation board
which is being merged as a separate entity.
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<corsepiu@faw.uni-ulm.de> that migrates the SH port to
multilib'ing. This patch involved moving a number of
files in the CVS repository, adding new files, and
deleting files from their previous location. Ralf
gave good instructions (not repeated here) and here
are his notes:
Note 1: In this version, I did not change the installation points of
the headers which are moved inside of the source-tree. This is a
temporary hack for not breaking compatibility with 4.5 based BSPs,
but will probably not last once having real multilibs (We would have
include file conflicts when several BSPs/CPU_MODELS share a common
installation prefix).
Note 2: I hope not to have broken too much, but I would not be
astonished if something goes wrong.
Note 3: There are more patches to come :)
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mpc8xx libcpu support for the first time and remove includes
of bsp.h, references to BSP_Configuration, and Cpu_table. All
of these can be obtained directly from RTEMS now.
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now is an implementation of the prototypes in rtems/rtems/cache.h.
The libcpu/i386/wrapup directory is no longer needed.
The PowerPC needs this done to it.
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<charles.gauthier@iit.nrc.ca>, and Darlene A. Stewart
<Darlene.Stewart@nrc.ca> to add support for a number of very
significant things:
+ BSPs for many variations on the Motorola MBX8xx board series
+ Cache Manager including initial support for m68040
and PowerPC
+ Rework of mpc8xx libcpu code so all mpc8xx CPUs now use
same code base.
+ Rework of eth_comm BSP to utiltize above.
John reports this works on the 821 and 860
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adds .cvsignore.
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adds .cvsignore.
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compiled and there is no comparable code for the C4x.
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linkcmds updated, simio references removed, and switch to libchip for
serial ports from simio.
Added a MEMORY_MAP file to capture information about the various
addresses on this board.
In addition, many of the beta patches are now included.
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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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pc686.cfg was not present.
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use correct ifdef conditional (__GNUC__ not __GCC__).
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<corsepiu@faw.uni-ulm.de>:
The patch below provides
* automake support for score/cpu/powerpc
* The hack to propagate values from *.cfg to automake configuration
* A fix for librdbg/powerpc/mcp750/Makefile.am (Was completely corrupted
before)
* Fixes some files which apparently where missing in
rtems-rc-19991123-rc-2.diff
* some minor configuration related patches
To apply:
rm -rf ./c/src/exec/score/cpu/powerpc/wrap
patch -p1 < rtems-rc-19991123-rc-3.diff
Attention:
c/src/exec/score/cpu/[configure.in|aclocal.m4|configure] should be
removed after applying the patch.
Modifications had been made to the score/cpu/powerpc directory after
the snapshot this was based on. In particular, the mpc750 and
other_cpu directories had been renamed to new_exception_processing
and old_exception_processing. After this patch was applied, modifications
were made to account for this.
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<corsepiu@faw.uni-ulm.de>:
The patch below provides
* automake support for score/cpu/powerpc
* The hack to propagate values from *.cfg to automake configuration
* A fix for librdbg/powerpc/mcp750/Makefile.am (Was completely corrupted
before)
* Fixes some files which apparently where missing in
rtems-rc-19991123-rc-2.diff
* some minor configuration related patches
To apply:
rm -rf ./c/src/exec/score/cpu/powerpc/wrap
patch -p1 < rtems-rc-19991123-rc-3.diff
Attention:
c/src/exec/score/cpu/[configure.in|aclocal.m4|configure] should be
removed after applying the patch.
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As part of this effort, the mpc750 libcpu code is now shared with the
ppc6xx.
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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/a29k/wrap
rm -rf c/src/exec/score/cpu/hppa1.1/wrap
rm -rf c/src/exec/score/cpu/i386/wrap
rm -rf c/src/exec/score/cpu/mips64orion/wrap
rm -rf c/src/exec/score/cpu/no_cpu/wrap
patch -p1 < rtems-rc-19991123-rc-2.diff.gz
Notes:
* I don't see a possiblity to convert the powerpc subdirectory in its
current layout to automake the time being.
* Besides the fact that this subdirectory is not in single-tree building
layout, the actual showstopper is the ifeq $(RTEMS_CPU_MODEL),mpc750)
gmake-conditional in powerpc/Makefile.in, which automake (correctly)
refuses to handle.
* The problem is *not* specific to the powerpc. Other CPUs basically
have similar problems (SH:sh7032 vs sh7045, SPARC: erc32.h in
score/cpu/sparc), but have been lucky to get around real issues (cf.
configuration files below score/cpu/sh/).
* From a configuration focused POV this problem boils down to a
file/subdirectory selection problem:
ppc: 1 or others
sh: 1 out of 2
sparc: 1 out of 1
Automake's means to implement such behavior is using conditionals to be
evaluated at configuration-time. The old configuration scheme however
used make-time conditionals. The SH port was lucky to get around this
issue because it applies a selection from a limited set of possible
selections, the powerpc however applies a selection from an unlimited
set, based on data not being available at configuration time.
* Currently I only see two general solutions:
1) make RTEMS_CPU_MODEL available at configuration time, ie. replace
make-time configuration by configuration-time configuration
2) Perform the selection at build-time, i.e. always install all files,
but use #ifdef #else #endif in source files. This is what the m68k has
exploited at other locations inside of the source-tree.
=> This directory is the last one remaining not using automake below the
whole exec/ hierarchy.
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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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Synthesizer Control Register to remove use of single letter names.
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<corsepiu@faw.uni-ulm.de> to correct the constraints on the
inline assembly language macro for sh_disable_interrupt.
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Ralf Corsepius <corsepiu@faw.uni-ulm.de> that adds initial Hitachi SH-2
support to RTEMS. Ralf's comments are:
Changes:
------
1. SH-Port:
* Many files renamed.
* CONSOLE_DEVNAME and MHZ defines removed from libcpu.
* console.c moved to libbsp/sh/shared, build in libbsp/sh/<BSP>/console
applying VPATH.
* CONSOLE_DEVNAME made BSP-specific, replacement is defined in bsp.h
* MHZ define replaced with HZ (extendent resolution) in custom/*.cfg
* -DHZ=HZ used in bspstart.c, only
* Makefile variable HZ used in bsp-dependent directories only.
2. SH1-Port
* clock-driver rewritten to provide better resolution for odd CPU
frequencies. This driver is only partially tested on hardware, ie.
sightly experimental, but I don't expect severe problems with it.
* Polling SCI-driver added. This driver is experimental and completly
untested yet. Therefore it is not yet used for the console (/dev/console
is still pointing to /dev/null, cf. gensh1/bsp.h).
* minor changes to the timer driver
* SH1 specific delay()/CPU_delay() now is implemented as a function
3. SH2-Port
* Merged
* IMO, the code is still in its infancy. Therefore I have interspersed
comments (FIXME) it for items which I think John should look after.
* sci and console drivers partially rewritten and extended (John, I hope
you don't mind).
* Copyright notices are not yet adapted
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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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particular, using bsp.h, or getting information from the BSP which
should properly be obtained from RTEMS is forbidden. 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>.
The changes primarily eliminated the need to include bsp.h and
peeking at BSP_Configuration. The use of Cpu_table in each
BSP needs to be eliminated.
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<mark@ramix.com> of RAMIX.
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disabled on exit to ISR Thread dispatching. This allows a
context switch to finish under high high interrupt rates.
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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.
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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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fixed by Joel.
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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.
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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.
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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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+ interrupt masking correction
+ FPU rev.B workaround
+ minor erc32 related fixes
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egcs source tree handle this correctly. No one should be using
gcc 2.7.2 anymore.
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