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2022-10-14score: Add CPU_THREAD_LOCAL_STORAGE_VARIANTSebastian Huber1-1/+4
Update #3835.
2022-02-28score/cpu/m68k: Change license to BSD-2Joel Sherrill1-3/+22
Updates #3053.
2021-07-28score: Canonicalize _CPU_Fatal_halt()Sebastian Huber1-0/+24
Move _CPU_Fatal_halt() declaration to <rtems/score/cpuimpl.h> and make sure it is a proper declaration of a function which does not return. Fix the type of the error code. If necessary, add the implementation to cpu.c. Implementing _CPU_Fatal_halt() as a function makes it possible to wrap this function for example to fully test _Terminate().
2018-11-12m68k: Remove use of proc_ptrSebastian Huber1-16/+16
Update #3585.
2018-11-08score: Rename interrupt stack symbolsSebastian Huber1-1/+1
Rename * _Configuration_Interrupt_stack_area_begin in _ISR_Stack_area_begin, * _Configuration_Interrupt_stack_area_end in _ISR_Stack_area_end, and * _Configuration_Interrupt_stack_size in _ISR_Stack_size. Move definitions to <rtems/score/isr.h>. The new names are considerable shorter and in the right namespace. Update #3459.
2018-06-27Rework initialization and interrupt stack supportSebastian Huber1-14/+12
Statically initialize the interrupt stack area (_Configuration_Interrupt_stack_area_begin, _Configuration_Interrupt_stack_area_end, and _Configuration_Interrupt_stack_size) via <rtems/confdefs.h>. Place the interrupt stack area in a special section ".rtemsstack.interrupt". Let BSPs define the optimal placement of this section in their linker command files (e.g. in a fast on-chip memory). This change makes makes the CPU_HAS_SOFTWARE_INTERRUPT_STACK and CPU_HAS_HARDWARE_INTERRUPT_STACK CPU port defines superfluous, since the low level initialization code has all information available via global symbols. This change makes the CPU_ALLOCATE_INTERRUPT_STACK CPU port define superfluous, since the interrupt stacks are allocated by confdefs.h for all architectures. There is no need for BSP-specific linker command file magic (except the section placement), see previous ARM linker command file as a bad example. Remove _CPU_Install_interrupt_stack(). Initialize the hardware interrupt stack in _CPU_Initialize() if necessary (e.g. m68k_install_interrupt_stack()). The optional _CPU_Interrupt_stack_setup() is still useful to customize the registration of the interrupt stack area in the per-CPU information. The initialization stack can reuse the interrupt stack, since * interrupts are disabled during the sequential system initialization, and * the boot_card() function does not return. This stack resuse saves memory. Changes per architecture: arm: * Mostly replace the linker symbol based configuration of stacks with the standard <rtems/confdefs.h> configuration via CONFIGURE_INTERRUPT_STACK_SIZE. The size of the FIQ, ABT and UND mode stack is still defined via linker symbols. These modes are rarely used in applications and the default values provided by the BSP should be sufficient in most cases. * Remove the bsp_processor_count linker symbol hack used for the SMP support. This is possible since the interrupt stack area is now allocated by the linker and not allocated from the heap. This makes some configure.ac stuff obsolete. Remove the now superfluous BSP variants altcycv_devkit_smp and realview_pbx_a9_qemu_smp. bfin: * Remove unused magic linker command file allocation of initialization stack. Maybe a previous linker command file copy and paste problem? In the start.S the initialization stack is set to a hard coded value. lm32, m32c, mips, nios2, riscv, sh, v850: * Remove magic linker command file allocation of initialization stack. Reuse interrupt stack for initialization stack. m68k: * Remove magic linker command file allocation of initialization stack. Reuse interrupt stack for initialization stack. powerpc: * Remove magic linker command file allocation of initialization stack. Reuse interrupt stack for initialization stack. * Used dedicated memory region (REGION_RTEMSSTACK) for the interrupt stack on BSPs using the shared linkcmds.base (replacement for REGION_RWEXTRA). sparc: * Remove the hard coded initialization stack. Use the interrupt stack for the initialization stack on the boot processor. This saves 16KiB of RAM. Update #3459.
2016-02-17m68k: Avoid SCORE_EXTERNSebastian Huber1-0/+33
Update #2559.
2015-06-26score: Simplify <rtems/system.h>Sebastian Huber1-1/+1
Drop the <rtems/score/percpu.h> include since this file exposes a lot of implementation details.
2014-04-17score: Clarify TLS supportSebastian Huber1-1/+1
2014-03-21Change all references of rtems.com to rtems.org.Chris Johns1-1/+1
2014-02-04Add thread-local storage (TLS) supportSebastian Huber1-0/+27
Tested and implemented on ARM, m68k, PowerPC and SPARC. Other architectures need more work.
2012-12-07score misc: Clean up Doxygen GCI Task #12Alex Ivanov1-29/+6
http://www.google-melange.com/gci/task/view/google/gci2012/7983217
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.
2011-07-242011-07-24 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-10/+5
* cpu.c, cpu_asm.S: Remove /*PAGE markers which were interpreted by a long dead print script.
2011-02-112011-02-11 Ralf Corsépius <ralf.corsepius@rtems.org>Ralf Corsepius1-1/+1
* cpu.c, rtems/score/cpu.h, rtems/score/m68k.h: Use "__asm__" instead of "asm" for improved c99-compliance.
2010-03-272010-03-27 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-0/+4
* cpu.c, cpu_asm.S: Add include of config.h
2009-12-04Whitespace removal.Ralf Corsepius1-3/+3
2009-05-15cpu.c, cpu_asm.S, rtems/score/cpu.h: Cleanup of the floating point context ↵Thomas Doerfler1-2/+6
initialization, save and restore code.
2009-02-112009-02-11 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-5/+2
* cpu.c, rtems/score/cpu.h: Eliminate _CPU_Thread_dispatch_pointer and passing address of _Thread_Dispatch to _CPU_Initialize. Clean up comments.
2008-09-082008-09-08 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-3/+3
* cpu.c, rtems/score/cpu.h: Remove extraneous spaces.
2008-08-192008-08-19 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill1-1/+1
* cpu.c, rtems/score/cpu.h: Add extern for bfffo table and rename it to indicate that it is specific to this architecture.
2007-12-042007-12-04 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill1-2/+0
* cpu.c, rtems/score/cpu.h: 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.
2007-05-222007-05-22 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill1-2/+0
* score/cpu/arm/cpu.c, score/cpu/avr/cpu.c, score/cpu/bfin/cpu.c, score/cpu/c4x/cpu.c, score/cpu/h8300/cpu.c, score/cpu/i386/cpu.c, score/cpu/m68k/cpu.c, score/cpu/mips/cpu.c, score/cpu/nios2/cpu.c, score/cpu/no_cpu/cpu.c, score/cpu/sh/cpu.c, score/cpu/sparc/cpu.c, cpukit/sapi/src/exinit.c: Move copying of CPU Table to shared executive initialization.
2007-04-17Use Context_Control_fp* instead of void* for fp_contexts.Ralf Corsepius1-4/+4
2005-05-032005-05-03 Joel Sherrill <joel@OARcorp.com>Joel Sherrill1-1/+1
* cpu.c: Remove warning.
2004-04-15Remove stray white spaces.Ralf Corsepius1-1/+0
2004-03-302004-03-30 Ralf Corsepius <ralf_corsepius@rtems.org>Ralf Corsepius1-8/+8
* cpu.c, m68302.h, rtems/score/cpu.h, rtems/score/m68k.h: Convert to using c99 fixed size types.
2003-09-042003-09-04 Joel Sherrill <joel@OARcorp.com>Joel Sherrill1-1/+1
* cpu.c, cpu_asm.S, rtems/score/cpu.h, rtems/score/m68k.h, rtems/score/types.h: URL for license changed.
2002-11-012002-11-01 Joel Sherrill <joel@OARcorp.com>Joel Sherrill1-1/+1
* cpu.c: Removed warnings.
2000-12-192000-12-19 Joel Sherrill <joel@OARcorp.com>Joel Sherrill1-1/+2
* cpu.c: Do not read or write raw interrupt vector table if we are on a CPU that does not have a %vbr register and the BSP is configured as having the table in ROM.
2000-08-01If the _VBR is set to 0xFFFFFFFF, then assume the vector jump table isJoel Sherrill1-1/+10
in ROM.
1999-11-17Updated copyright notice.Joel Sherrill1-2/+1
1998-03-25m68k software interrupt stack support from Chris Johns and Eric Norum.Joel Sherrill1-4/+0
1998-02-17updated copyright to 1998Joel Sherrill1-1/+1
1997-10-08Fixed typo in the pointer to the license terms.Joel Sherrill1-2/+2
1997-05-28Added support for context switching the data used by the gcc m68kJoel Sherrill1-0/+29
software floating point emulation code. Code implemented by Karen Sara Looney <Karen.Looney@colorado.edu> with much email assistance from Joel.
1997-04-22headers updated to reflect new style copyright notice as partJoel Sherrill1-5/+5
of switching to the modified GNU GPL.
1997-04-16Added FPSP support for MC68040Joel Sherrill1-2/+19
1997-04-07Replaced warning message for cpus which do not have hardware supportJoel Sherrill1-2/+3
for an interrupt stack. Hopefully this will encourage someone to implement software stack switching on the m68k.
1997-01-15fixed comments on vanilla 68000 SW interrupt stack (or the lack thereof)Joel Sherrill1-1/+2
1996-12-02Update from Chris Johns <cjohns@awa.com.au> to add better support forJoel Sherrill1-3/+19
68000 class CPUs.
1995-09-26posix support initially addedJoel Sherrill1-1/+1
1995-09-22Removed unneeded referenced to rtems/fatal.hJoel Sherrill1-1/+0
1995-09-19Incorporated the submission from John S. GwynneJoel Sherrill1-22/+24
<jsg@coulomb.eng.ohio-state.edu> of the rest of the 68000-ish support for interrupt handling and bfffo support, the two BSPs he submitted (efi68k and efi332), and SGI Irix 5.3 host support.
1995-09-11The word "RTEMS" almost completely removed from the core.Joel Sherrill1-4/+15
Configuration Table Template file added and all tests modified to use this. All gvar.h and conftbl.h files removed from test directories. Configuration parameter maximum_devices added. Core semaphore and mutex handlers added and RTEMS API Semaphore Manager updated to reflect this. Initialization sequence changed to invoke API specific initialization routines. Initialization tasks table now owned by RTEMS Tasks Manager. Added user extension for post-switch. Utilized user extensions to implement API specific functionality like signal dispatching. Added extensions to the System Initialization Thread so that an API can register a function to be invoked while the system is being initialized. These are largely equivalent to the pre-driver and post-driver hooks. Added the Modules file oar-go32_p5, modified oar-go32, and modified the file make/custom/go32.cfg to look at an environment varable which determines what CPU model is being used. All BSPs updated to reflect named devices and clock driver's IOCTL used by the Shared Memory Driver. Also merged clock isr into main file and removed ckisr.c where possible. Updated spsize to reflect new and moved variables. Makefiles for the executive source and include files updated to show break down of files into Core, RTEMS API, and Neither. Header and inline files installed into subdirectory based on whether logically in the Core or a part of the RTEMS API.
1995-07-12Ada95, gnat, go32Joel Sherrill1-30/+42
1995-06-07incorporated mc68302 supportJoel Sherrill1-0/+23