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2018-01-25Remove make preinstallChris Johns1-1010/+0
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.
2017-01-26score: Delete _CPU_Context_Fp_start()Sebastian Huber1-17/+0
Since the FP area pointer is passed by reference in _CPU_Context_Initialize_fp() the optional FP area adjustment via _CPU_Context_Fp_start() is superfluous. It is also wrong with respect to memory management, e.g. pointer passed to _Workspace_Free() may be not the one returned by _Workspace_Allocate(). Close #1400.
2017-01-24Remove CPU_BIG_ENDIAN and CPU_LITTLE_ENDIANSebastian Huber1-16/+0
Use de-facto standard BYTE_ORDER instead. Close #2803.
2016-11-23score: Robust thread dispatchSebastian Huber1-0/+2
On SMP configurations, it is a fatal error to call blocking operating system with interrupts disabled, since this prevents delivery of inter-processor interrupts. This could lead to executing threads which are not allowed to execute resulting in undefined behaviour. The ARM Cortex-M port has a similar problem, since the interrupt state is not a part of the thread context. Update #2811.
2016-11-18score: Add _ISR_Is_enabled()Sebastian Huber1-0/+5
In contrast to _ISR_Get_level() the _ISR_Is_enabled() function evaluates a level parameter and returns a boolean value. Update #2811.
2016-11-18rtems: Conditionally define rtems_interrupt_frameSebastian Huber1-1/+1
Update #2808.
2016-11-18score: Move CPU_PER_CPU_CONTROL_SIZESebastian Huber1-2/+0
Move CPU_PER_CPU_CONTROL_SIZE and the optional CPU_Per_CPU_control to <rtems/score/cpuimpl.h> to hide it from <rtems.h>.
2016-11-18score: Remove obsolete definesSebastian Huber1-19/+0
The thread dispatch inline option is no longer used.
2016-09-23score: Fix C/C++ compatibility issueSebastian Huber1-4/+0
Only use CPU_Per_CPU_control if it contains at least one filed. In GNU C empty structures have a size of zero. In C++ structures have a non-zero size. In case CPU_PER_CPU_CONTROL_SIZE is defined to zero, then this structure is not used anymore.
2016-06-08score: Delete CPU_USE_GENERIC_BITFIELD_DATASebastian Huber1-2/+0
Rename __log2table into _Bitfield_Leading_zeros since it acually returns the count of leading zeros of an 8-bit integer. The value for zero is a bit odd. Provide it unconditionally.
2016-06-08score: Delete dead copy and paste codeSebastian Huber1-97/+1
2016-03-04score: Add CPU_MAXIMUM_PROCESSORSSebastian Huber1-0/+2
Maximum number of processors of all systems supported by this CPU port.
2016-02-17mips: Avoid SCORE_EXTERNSebastian Huber1-1/+1
Update #2559.
2016-01-26score: Introduce CPU_CACHE_LINE_BYTESSebastian Huber1-25/+3
Add CPU_CACHE_LINE_BYTES for the maximum cache line size in bytes. The actual processor may use no cache or a smaller cache line size.
2016-01-25score: Delete obsolete CPU_TIMESTAMP_* definesSebastian Huber1-2/+0
Update #2271.
2015-10-26basedefs.h: Add and use RTEMS_NO_RETURNSebastian Huber1-1/+1
2015-03-05score: Delete unused CPU_UNROLL_ENQUEUE_PRIORITYSebastian Huber1-20/+0
2014-09-11score: Rename _BSP_Exception_frame_print()Sebastian Huber1-8/+1
Rename _BSP_Exception_frame_print() to _CPU_Exception_frame_print() to be in line with other CPU port functions.
2014-09-10Let CPU/BSP Fatal handler have access to sourceDaniel Hellstrom1-1/+1
Without the source the error code does not say that much. Let it be up to the CPU/BSP to determine the error code reported on fatal shutdown. This patch does not change the current behaviour, just adds the option to handle the source of the fatal halt.
2014-04-29score: Statically initialize _ISR_Vector_tableSebastian Huber1-9/+0
2014-04-03score: Rename Priority_bit_map_ControlSebastian Huber1-1/+1
Rename Priority_bit_map_Control in Priority_bit_map_Word.
2014-03-21Change all references of rtems.com to rtems.org.Chris Johns1-1/+1
2014-02-14score: Add CPU counter supportSebastian Huber1-0/+11
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.
2014-02-04Add thread-local storage (TLS) supportSebastian Huber1-1/+2
Tested and implemented on ARM, m68k, PowerPC and SPARC. Other architectures need more work.
2013-11-14mips/.../cpu.h: Comment improvementJoel Sherrill1-1/+3
2013-08-09score/cpu: Add CPU_Per_CPU_controlSebastian Huber1-0/+6
Add CPU port specific per-CPU control.
2013-05-10score: Add CPU context validationSebastian Huber1-0/+12
2013-04-23mips: Fix warningsSebastian Huber1-0/+1
2013-01-10cpukit: Add EOL on files missing EOL at EOFJoel Sherrill1-1/+1
2013-01-04score: Doxygen Clean Up Task #3Mathew Kallada1-4/+13
2012-11-27score: Add CPU_Exception_frameSebastian Huber1-0/+13
Add CPU port type CPU_Exception_frame and function _CPU_Exception_frame_print(). The CPU ports of avr, bfin, h8300, lm32, m32c, m32r, m68k, nios2, sh, sparc64, and v850 use an empty default implementation of _CPU_Exception_frame_print(). Add rtems_exception_frame and rtems_exception_frame_print(). Add RTEMS_FATAL_SOURCE_EXCEPTION for CPU exceptions. Use rtems_fatal() with source RTEMS_FATAL_SOURCE_EXCEPTION in CPU ports of i386, powerpc, and sparc for unexpected exceptions. Add third parameter to RTEMS_BSP_CLEANUP_OPTIONS() which controls the BSP_PRINT_EXCEPTION_CONTEXT define used in the default bsp_fatal_extension(). Add test sptests/spfatal26.
2012-11-22score: PR1607: Add and use CPU_SIZEOF_POINTERSebastian Huber1-0/+2
Add and use new CPU port define CPU_SIZEOF_POINTER. It must be an integer literal that can be used by the assembler. This value will be used to calculate offsets of structure members. These offsets will be used in assembler code. The size of a pointer is part of the application binary interface (ABI) and thus independent of the actual programming language. The compiler will provide defines to determine the current ABI. We use these defines to select the appropriate CPU_SIZEOF_POINTER value. Static assertions in the new file "cpukit/score/src/percpuasm.c" will ensure that the value of CPU_SIZEOF_POINTER is consistent with the current compiler settings. Also the offset values used by assembler code are verfied.
2012-06-11mips/cpu.h: Define CPU_SIMPLE_VECTORED_INTERRUPTS and remove _CPU_ISR_InitializeJoel Sherrill1-7/+2
2012-05-11Remove All CVS Id Strings Possible Using a ScriptJoel Sherrill1-2/+0
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.
2012-04-04PR 1993 - Convert MIPS to PIC IRQ modelJennifer Averett1-5/+14
2011-09-272011-09-27 Sebastian Huber <sebastian.huber@embedded-brains.de>Sebastian Huber1-0/+2
PR 1914/cpukit * rtems/score/cpu.h: Select timestamp implementation.
2010-10-212010-10-21 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-1/+1
* rtems/score/cpu.h: Add RTEMS_COMPILER_NO_RETURN_ATTRIBUTE to _CPU_Context_restore() because it does not return. Telling GCC this avoids generation of dead code.
2010-07-292010-07-29 Gedare Bloom <giddyup44@yahoo.com>Joel Sherrill1-1/+1
PR 1635/cpukit * rtems/score/cpu.h, rtems/score/types.h: Refactoring of priority handling, to isolate the bitmap implementation of priorities in the supercore so that priority management is a little more modular. This change is in anticipation of scheduler implementations that can select how they manage tracking priority levels / finding the highest priority ready task. Note that most of the changes here are simple renaming, to clarify the use of the bitmap-based priority management.
2010-07-162010-07-16 Sebastian Huber <sebastian.huber@embedded-brains.de>Sebastian Huber1-11/+1
* rtems/score/cpu.h: Include <rtems/score/types.h> first. * rtems/score/types.h: Use <rtems/score/basedefs.h> header file.
2010-07-012010-07-01 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-1/+1
* rtems/asm.h, rtems/score/cpu.h: cpu.h defines were not available to assembly programs. This resulted in percpu.h (when included from assembly) not being able to detect that the MIPS does not have a dedicated software managed interrupt stack.
2010-06-292010-06-28 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-16/+0
PR 1573/cpukit * cpu_asm.S, rtems/score/cpu.h: Add a per cpu data structure which contains the information required by RTEMS for each CPU core. This encapsulates information such as thread executing, heir, idle and dispatch needed.
2010-04-252010-04-25 Joel Sherrill <joel.sherrilL@OARcorp.com>Joel Sherrill1-14/+9
* cpu.c, rtems/score/cpu.h: Move _CPU_Context_Initialize() to cpu.c so it is easier to make warning free.
2010-04-252010-04-25 Joel Sherrill <joel.sherrilL@OARcorp.com>Joel Sherrill1-2/+2
* rtems/score/cpu.h: Remove warning in _CPU_Context_Initialize.
2009-12-04Whitespace removal.Ralf Corsepius1-14/+14
2009-02-122009-02-12 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-1/+1
* cpu.c, rtems/score/cpu.h: Change prototype of IDLE thread to consistently return void * and take a uintptr_t argument.
2009-02-112009-02-11 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-20/+1
* cpu.c, rtems/score/cpu.h: Eliminate _CPU_Thread_dispatch_pointer and passing address of _Thread_Dispatch to _CPU_Initialize. Clean up comments.
2008-07-312008-07-31 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill1-1/+1
* cpu.c, rtems/score/cpu.h: Correct prototype of Idle threads.
2008-06-052008-06-05 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill1-1/+13
* rtems/score/cpu.h: Add CPU_SIMPLE_VECTORED_INTERRUPTS porting parameter to indicate that the port uses the Simple Vectored Interrupt model or the Programmable Interrupt Controller Model. The PIC model is implemented primarily in the BSP and it is responsible for all memory allocation.
2008-06-042008-06-04 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill1-1/+1
* rtems/score/cpu.h: Use a constant for CPU_STACK_MINIMUM_SIZE so it can be used in cpp expressions. Using sizeof() requires actually compiling the file.
2007-12-172007-12-17 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-0/+3
* rtems/score/cpu.h: Add _CPU_Context_Get_SP() for stack check utility.
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