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.
All tools should be removed from the RTEMS source repository at some
point in time. Tools with a BSD-style license will be moved to the
RTEMS tools repository. Unfortunately, this tool has no license
information.
Remove all uses of this tool from the code base. Users of HEX files
should consider to use ELF instead.
Close#3379.
An invalid heap usage such as a double free is usually a fatal error
since this indicates a use after free. Replace the use of printk() in
free() with a fatal error.
Update #3437.
_Timespec_Equal_to() does not set errno, hence avoid using perror(),
instead use fprintf() to stderr, and extend the error message to provide
information about what the error is (measured timer value after
re-arming is not equal to the configured interval), and how large of a
difference was measured.
Signed-off-by: Martin Erik Werner <martin.werner@aacmicrotec.com>
Always build remote TCP support since it depends only on the POSIX
socket API. It works with the legacy network stack and libbsd. Move it
to a separate libdebugger.a library to allow an easy use with libbsd via
"-ldebugger -lbsd" otherwise we would have a cyclic dependency between
libbsd.a and librtemscpu.a.
Update #3419.
Adjust various build files. Remove automatic generation of the
c/src/lib/libbsp/*/acinclude.m4 files from bootstrap script.
This patch is a part of the BSP source reorganization.
Update #3285.
It tests the (never really working) strict order mutex option. That
option does not exist any more. Mutexes by other good means (spmutex01,
spsem*).
Update #3406.
Somehow it does not work. With this Automake option you get:
gmake[6]: Entering directory '/build/sparc-rtems5/c/erc32/testsuites/ada/sptests'
Making all-am in sp01
gmake[7]: Entering directory '/build/sparc-rtems5/c/erc32/testsuites/ada/sptests/sp01'
gmake[7]: *** No rule to make target 'init.o', needed by 'ada_sp01.exe'. Stop.
Update #3387.
This option silences warning with automake-1.16.1 allowing us to
upgrade to that version.
This change has been tested with automake-1.12.6 and automake-1.16.1.
It seems version 1.16.1 configures slower than 1.12.6 for the same
source and BSP. The newer versions is 6 second slower.
Close#3387.
The autoconf function checks the state of a test for the BSP and
controls the building of the test.
This change is part of the testsuite Makefile.am reorganisation.
Update #3382
