| Commit message (Collapse) | Author | Age | Files | Lines |
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Use only one timer driver variant based on the standard PowerPC time
base.
This patch is a part of the BSP source reorganization.
Update #3285.
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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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Updates #3520.
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Updates #3520.
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BSPs can use the bsp_fatal_extension() to provide BSP-specific fatal
error handling. There is no need for a _BSP_Fatal_error().
Close #3246.
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Due to a new rtems_panic() implementation, it is possible to replace the
PowerPC-specific BSP_panic() with rtems_panic(). Remove BSP_panic()
implementations.
Close #3245.
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Update #2408.
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warning and clean up
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The TLS section symbols had wrong values in case of an empty TLS data
section and a nonempty TLS BSS section.
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Add a CPU counter interface to allow access to a free-running counter.
It is useful to measure short time intervals. This can be used for
example to enable profiling of critical low-level functions.
Add two busy wait functions rtems_counter_delay_ticks() and
rtems_counter_delay_nanoseconds() implemented via the CPU counter.
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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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* startup/iss555.c: Update due to API changes.
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* irq/irq.h, startup/iss555.c, startup/tm27supp.c: Remove warnings.
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* startup/linkcmds: Add sbss section handling.
Misc. sync with binutils's ld-scripts.
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* ep1a/startup/linkcmds, mbx8xx/startup/linkcmds,
score603e/startup/linkcmds, shared/startup/linkcmds,
ss555/startup/linkcmds: Fix typos in .eh_frame sections.
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* startup/start.S: Update for boot_card command line change.
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* Makefile.am, startup/linkcmds: Use top level shared
bsp_get_work_area() implementation.
* startup/bspgetworkarea.c: Removed.
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* Makefile.am, configure.ac, startup/bspstart.c, startup/linkcmds: Add
use of bsp_get_work_area() in its own file and rely on BSP Framework
to perform more initialization.
* startup/bspgetworkarea.c: New file.
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* startup/bspstart.c: Add capability for bootcard.c BSP Initialization
Framework to ask the BSP where it has memory for the RTEMS Workspace
and C Program Heap. These collectively are referred to as work area.
If the BSP supports this, then it does not have to include code to
split the available memory between the two areas. This reduces the
amount of code in the BSP specific bspstart.c file. Additionally, the
shared framework can initialize the C Library, call
rtems_debug_enable(), and dirty the work area memory. Until most/all
BSPs support this new capability, if the BSP supports this, it should
call RTEMS_BSP_BOOTCARD_HANDLES_RAM_ALLOCATION from its configure.ac.
When the transition is complete, this autoconf macro can be removed.
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* startup/bspstart.c: Refactored and renamed initialization routines to
rtems_initialize_data_structures, rtems_initialize_before_drivers,
rtems_initialize_device_drivers, and
rtems_initialize_start_multitasking. This opened the sequence up so
that bootcard() could provide a more robust and flexible framework
which is easier to explain and understand. This also lays the
groundwork for sharing the division of available memory between the
RTEMS workspace and heap and the C library initialization across all
BSPs.
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* startup/bspstart.c: Remove all references to
console_reserve_resources and termios_reserve_resources.
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* startup/linkcmds: Add wildcard to gcc_except_table section so
programs compiled with gcc 4.3.x can link.
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* startup/bspstart.c: Add semicolon.
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* startup/bspstart.c: Add bsp_timer_least_valid and
bsp_timer_average_overhead so tmtests link.
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* 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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* 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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* Makefile.am, startup/bspstart.c: Moved most of the remaining CPU
Table fields to the Configuration Table. This included
pretasking_hook, predriver_hook, postdriver_hook, idle_task,
do_zero_of_workspace, extra_mpci_receive_server_stack,
stack_allocate_hook, and stack_free_hook. As a side-effect of this
effort some multiprocessing code was made conditional and some style
clean up occurred.
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* startup/bspstart.c: Eliminate PowerPC specific elements from the CPU
Table. They have been replaced with variables named bsp_XXX as
needed.
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* startup/linkcmds: Add .gnu.linkonce.b.* section.
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* startup/linkcmds: Add sections required by newer gcc versions.
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* startup/bspstart.c: Eliminate warnings.
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* startup/bspstart.c: include <rtems/powerpc/powerpc.h>.
Use PPC_MINIMUM_STACK_FRAME_SIZE instead of
CPU_MINIMUM_STACK_FRAME_SIZE.
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* console/console.c, include/bsp.h, startup/bspstart.c,
startup/iss555.c: Use POSIX fixed size types.
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PR 611/bsps
* Makefile.am, include/bsp.h, wrapup/Makefile.am: Follow conventions
for tm27 and do not add another macro definition.
* startup/tm27supp.c: New file.
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* include/bsp.h, startup/start.S: Reflect new locations of cpukit headers.
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