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* mips-stub.c: Debugged & tweaked the gdb command processing,
zbreak stuff, breakpoint and step code. Implemented 'T' command
support and debugged remote gdb support w/ the Mongoose bsp.
Added the memory segment support.
* memlimits.h: Disabled all contents in favor of memory sement
support. This file could probably go away.
* rtems-stub-glue.c (rtems_gdb_index_to_stub_id()): New routine.
rtems_gdb_stub_get_register_from_context(): Implemented MIPS version.
rtems_gdb_stub_get_offsets(): Implemented MIPS version.
* README: Updated.
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* Significant modifications including adding thread support, the 'X'
command, and reorganizing so that target CPU independent routines
could be reused.
* gdb_if.h: Added numerous prototypes.
* mips-stub.c: Added thread support as well as 'X' command.
Also noticed that the 'P' command was from the mips protocol.
* rtems-stub-glue.c: New file. This file contains all generic
support which should be able to be reused on another target CPU.
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* bootcard.c: Use __USE_INIT_FINI__ since USE_INIT_FINI
pollutes the application namespace.
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* timerstub.c: New stub file for BSPs that don't have timer hardware.
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* console-polled.c, console.c: Fixed typo.
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* shared/bootcard.c, shared/main.c: Now call int c_rtems_main()
not main().
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* hared/bootcard.c: Now process C++ global constructors
(_init) as part of the first task execution not in BSP space.
This depends on the toolset defining USE_INIT_FINI so you
have to have the right toolset version.
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* setvec.c: Removed unused variables.
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* clockdrv_shell.c (CLOCK_DRIVER_ISRS_PER_TICK): Add support for
multiple ISRs per clock tick. Testing per hacking on mips/jmr3904
clock driver.
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* clockdrv_shell.c: Fixed syntax error in fast idle support.
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* clockdrv_shell.c: Added fast idle mode which is enabled by defining
CLOCK_DRIVER_USE_FAST_IDLE.
* console-polled.c: Added console_initialize_hardware() hook.
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* console-polled.c: Remove warnings.
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* clock_driver_stub.c: This is a stub of a clock driver that
is sufficient for linking the ticker application. Some
simulators do not have a soruce for a clock tick. Also
this can be used while constructing a BSP so everything links.
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* bsplibc.c: assoc.h, error.h, libio_.h, libio.h, and
libcsupport.h moved from libc to lib/include/rtems and
now must be referenced as <rtems/XXX.h>. Header file order
was cleaned up while doing this.
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* POSIX include files merged into newlib. This resulted in
some definitions moving to other files and thus some secondary
effects in RTEMS source code.
* sbrk.c: Corrected prototype to match newlib.
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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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that addresses aspects of the targopts.h multilib related
issues.
Changes:
* Move targopts.h to libbsp/include, because the current targopts.h
actually is a per-BSP-header and therefore can not stay below exec/.
* Introduce an autoheader generated header file
(exec/score/include/rtems/score/cpuopts.h), which shall take per-cpu
configuration options only.
* Move all autoconf-detectable/configure specified per-cpu
option-defines from targopts.h to cpuopts.h.
* Add Makefiles to the libbsp/shared directory hierarchy.
Notes:
* The new per-bsp targopts.h in libbsp includes the per-cpu
cpuopts.h. This way, the new targopts.h is kept backward compatible
to the old targopts.h and existing BSPs which (carelessly) include
targopts.h (i386, ppc) should be kept working when using the
multilib-disabled configuration scheme.
* cpuopts.h is not yet complete, because the per-BSP make-targopts
rules from custom/<BSP>.cfg files can not be applied to files below
exec/ when building multilibs.
* All files below exec/ should not include targopts.h anymore, but
should include cpuopts.h instead. However, eliminating inclusion of
targopts.h currently triggers further structural / header file inclusion
related issues, because several ports apply BSP or CPU_MODEL specific
defines from targopts.h below exec/
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to do polled IO on a single port with VERY little support code.
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for RTEMS.
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in getenv/putenv working all the time without special assistance
from the BSP.
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to address m68k-rtemself for the MVME167.
Here is the rtems patch I promissed you a long time ago to enable ELF
with m68k. The target name I selected is m68k-rtemself. It preserves the
m68k-rtems COFF target, and is parterned after the other ELF/COFF dual
targets.
The mvme167.cfg file causes the -qelf flag to be used during compilation
if the name of the compiler contains rtemself. This flag is used in the
bsp_specs file to select the elflinkcmds file rather than the linkcmds
file. The former is for ELF, the latter for COFF.
Some patches are required to the mc68040 FPSP code. Some of the
assembler files contain instructions that were rejected by the
m68k-rtemself-as assembler. This is a minor bug in the m68k ELF
assembler, I think.
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init() and fini() routines.
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boot_card() and main() into separate files to ease configuration
of other packages. This was a big step in the way to build TCL,
ncurses, and zlib for RTEMS.
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link even if they do not actually support Ada interrupts.
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exceptions work on the pc386 BSP with i386-elf. This patch also
included changes to the i386-rtemself egcs configuration.
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> 5) rtems-rc-19990202-1.diff/reorg-install.sh
>
> reorg-install.sh fixes a Makefile variable name clash of RTEMS
> configuration files and automake/autoconf standards.
> Until now, RTEMS used $(INSTALL) for install-if-change. Automake and
> autoconf use $(INSTALL) for a bsd-compatible install. As
> install-if-change and bsd-install are not compatible, I renamed all
> references to install-if-changed to $(INSTALL_CHANGED) and used
> $(INSTALL) for bsd-install (==automake/autoconf standard). When
> automake will be introduced install-if-change will probably be replaced
> by $(INSTALL) and therefore will slowly vanish. For the moment, this
> patch fixes a very nasty problem which prevents adding any automake file
> until now (There are still more).
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This problem should and likely was occurring with other BSPs. This is from
Chris' email:
I had a look in the psim bsp for the older snapshot I have and it looks
like you are using the `libbsp/shared/main.c' and this is known to work.
I have just built the powerpc tools, and compiled the bsp. I have not
added the linker command file patch so got the list of linker warnings.
It looks to me like a compiler bug. The `main' call is being inlined and
when that happens the special code to call `__eabi' is not being added
to the inlined version. I have attached a patch which places `main'
after `boot_card' and a call to main is now generated. I have not tested
it but it should work. I also include a dump of `boot_card' and `main'
showing the bug.
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overhaul of the RTEMS system call interface. This base file system is
the "In-Memory File System" aka IMFS.
The design and implementation was done by the following people:
+ Joel Sherrill (joel@OARcorp.com)
+ Jennifer Averett (jennifer@OARcorp.com)
+ Steve "Mr Mount" Salitasc (salitasc@OARcorp.com)
+ Kerwin Wade (wade@OARcorp.com)
PROBLEMS
========
+ It is VERY likely that merging this will break the UNIX port. This
can/will be fixed.
+ There is likely some reentrancy/mutual exclusion needed.
+ Eventually, there should be a "mini-IMFS" description table to
eliminate links, symlinks, etc to save memory. All you need to
have "classic RTEMS" functionality is technically directories
and device IO. All the rest could be left out to save memory.
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Reimplemented checkRealTime() to use RTEMS internal routine.
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existing TOD interface.
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Modified open so it uses a local variable rather than modifying a parameter.
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+ adding #include <rtems/libio.h> to fix implicit declaration warning
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bspstart.c file.
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code in each BSP's bspstart.c. These changes were:
+ confdefs.h now knows libio's semaphore requirements
+ shared/main.c now copies Configuration to BSP_Configuration
+ shared/main.c fills in the Cpu_table with default values
This removed the need for rtems_libio_config() and the constant
BSP_LIBIO_MAX_FDS in every BSP. Plus now the maximum number of open
files can now be set on the gcc command line.
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