| Commit message (Collapse) | Author | Age | Files | Lines |
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A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.
This has at least seven problems:
* The make preinstall step itself needs time and disk space.
* Errors in header files show up in the build tree copy. This makes it
hard for editors to open the right file to fix the error.
* There is no clear relationship between source and build tree header
files. This makes an audit of the build process difficult.
* The visibility of all header files in the build tree makes it
difficult to enforce API barriers. For example it is discouraged to
use BSP-specifics in the cpukit.
* An introduction of a new build system is difficult.
* Include paths specified by the -B option are system headers. This
may suppress warnings.
* The parallel build had sporadic failures on some hosts.
This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.
The new cpukit include directories are:
* cpukit/include
* cpukit/score/cpu/@RTEMS_CPU@/include
* cpukit/libnetworking
The new BSP include directories are:
* bsps/include
* bsps/@RTEMS_CPU@/include
* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include
There are build tree include directories for generated files.
The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.
The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.
Update #3254.
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This was done by the following script run from libbsp:
find * -name bsp.h | xargs -e grep -l "#ifndef.*_BSP_H" | while read b
do
echo $b
cpu=`echo $b | cut -d'/' -f1 | tr '[:lower:]' '[:upper:]' `
bsp=`echo $b | cut -d'/' -f2 | tr '[:lower:]' '[:upper:]' `
g="LIBBSP_${cpu}_${bsp}_BSP_H"
# echo $g
sed -e "s/ifndef _BSP_H/ifndef ${g}/" \
-e "s/define _BSP_H/define ${g}/" \
-i $b
done
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Some includes may use C++ and this conflicts if surrounded extern "C".
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Include <bsp/default-initial-extension.h> in all BSPs. Call
rtems_fatal() with RTEMS_FATAL_SOURCE_EXIT as source and the exit()
status code as fatal code in every bsp_cleanup(). Move previous
bsp_cleanup() code into bsp_fatal_extension().
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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* include/bsp.h:
Use "__asm__" instead of "asm" for improved c99-compliance.
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* include/bsp.h: Remove unnecessary boilerplate comments.
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* Makefile.am, include/bsp.h, startup/init68360.c, startup/linkcmds,
startup/linkcmds.bootp, startup/linkcmds.prom: Use top level shared
bsp_get_work_area() implementation.
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* Makefile.am, include/bsp.h: Review of all bsp_cleanup()
implementations. In this phase, all prototypes were removed from
bsp.h and empty implementations were removed and made to use the
shared stub.
* startup/bspclean.c: Removed.
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added genmcf548x BSP
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* clock/clock.c, include/bsp.h, startup/bspstart.c: Eliminate copies of
the Configuration Table. Use the RTEMS provided accessor macros to
obtain configuration fields.
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* include/bsp.h, startup/bspstart.c: Move interrupt_stack_size field
from CPU Table to Configuration Table. Eliminate CPU Table from all
ports. Delete references to CPU Table in all forms.
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* include/bsp.h: New header guard.
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* include/bsp.h, startup/init68360.c: Correct type of symbols from
linkcmds to compile with gcc 4.x.
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* include/bsp.h: Split out tmtest27 support.
* include/tm27.h: New.
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PR 613/bsps
* include/bsp.h: Remove MAX_LONG_TEST_DURATION.
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PR 614/bsps
* include/bsp.h: Remove MAX_SHORT_TEST_DURATION (Unused).
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* include/bsp.h: Include <rtems/clockdrv.h> instead of <clockdrv.h>.
* include/bsp.h: Include <rtems/console.h> instead of <console.h>.
* include/bsp.h: Include <rtems/iosupp.h> instead of <iosupp.h>.
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* include/bsp.h, network/network.c, startup/bspstart.c,
startup/init68360.c, timer/timer.c: Convert to using c99 fixed size
types.
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* console/console.c, console/consolereserveresources.c, include/bsp.h,
start/start.S, startup/bspclean.c, startup/bspstart.c, timer/timer.c:
URL for license changed.
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* include/bsp.h: Renamed delay() to rtems_bsp_delay().
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* configure.in: Add bspopts.h.
* include/.cvsignore: Add bspopts.h*, stamp-h*.
* include/Makefile.am: Use *_HEADERS instead of *H_FILES.
* include/bsp.h: Include bspopts.h.
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to driver attach routine.
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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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Here are some patches to the gen68360 BSP. The improvements include:
Boot prom run-time selection of DRAM size (1/4/16 Mbytes)
Full 32-bit ethernet address obtained from boot prom.
Updated README.
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Enable 68360 watchdog. The watchdog control register is a
`write-once' register, so the watchdog has to be enabled in the boot
roms if it is to be used at all. To make the change transparent I
added a default feed of the watchdog to the clock interrupt handler.
This can be overridden if the application wants to handle the
watchdog. The only difficulty with this change is that an
application has to either include the clock driver or handle the
watchdog explicitely. I don't think this is much of a problem since
I am pretty sure that almost every application includes the clock
driver.
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of switching to the modified GNU GPL.
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was done based on the 3.6.0 release and had to be autoconf'ed locally.
It is turned on is the bsp enables it and it is not explicitly disabled
via the configure option --disable-tcpip. As many warnings as possible
were removed locally after the code was merged. Only the gen68360
and mvme136 bsps were compiled this way.
The ka9q port and network driver were submitted by Eric Norum
(eric@skatter.USask.Ca).
The network demo programs are not included in the tree at this point.
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Contact information:
W. Eric Norum
Saskatchewan Accelerator Laboratory
107 North Road
University of Saskatchewan
Saskatoon, Saskatchewan, CANADA
S7N 5C6
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