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Sponsored-By: Precidata
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Remove the BSP_POWER_DOWN_AT_FATAL_HALT BSP option. Applications should
do the customization of the system termination with an initial fatal
extension.
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Sebastian has agreed to move this out of score. I should have
removed this patch from my tree but accidentally committed it
with another patch.
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The only use was in a test.
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Previously, the erase ioctl call would ignore flash regions and erase at
the absolute address passed in. This adds a check for if the region is
set and adds the region offset accordingly.
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Update #3269.
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Use the C/C++ standard API directly.
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All CPU ports used the same <rtems/score/cpustdatomic.h> header file to
provide the atomic operations. Remove the header file indirection.
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This improves the organization of the cpukit.
Closes #4912.
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Add <rtems/termiosdevice.h> which does not depend on <rtems/libio.h> to
provide rtems_termios_device_context and rtems_termios_device_handler.
For polled serial device drivers, this removes a header file dependency
to the full file system support.
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* _Protected_heap_Get_block_size
* _Protected_heap_Iterate
* _Protected_heap_Resize_block
Closes #4909.
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Prefer macros with a proper namespace.
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The embedded brains GmbH & Co. KG is the legal successor of embedded
brains GmbH.
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Coverity #1530126
Coverity #1530125
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Use of this method was likely eliminated during the rework to use
FreeBSD bintime/sbintime.
Close #4905.
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The updated files were extracted from:
https://www.zlib.net/zlib-1.2.13.tar.xz
The archive had an SHA-256 hash value of:
d14c38e313afc35a9a8760dadf26042f51ea0f5d154b0630a31da0540107fb98
Close #4902.
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AMD64 requires SSE support which operates on 128bit data values.
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Close #4863.
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There was a cyclic dependency: For RTEMS_STATIC_ANALYSIS we needed
basedefs.h in assert.h. For RTEMS_UNREACHABLE() we needed _Assert() from
assert.h in basedefs.h.
Fix this by introducing _Debug_Unreachable() in basedefs.h.
Add RTEMS_FUNCTION_NAME to basedefs.h and use it in basedefs.h and
assert.h.
Close #4900.
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Resolve warnings about mismatched pointer and integer sizes in AArch64
libdl when building with the ILP32 ABI.
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This was added with the writebuffer work and should have been protected
by the error check.
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Due to API change, the patch also fixes affected BSPs and uses
value provided by MPU CTRL spec option there.
Sponsored-By: Precidata
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This adds write buffer and bad block support required for JFFS2
operation on NAND devices. This also adds the minor modifications
necessary for RTEMS support in the Linux header stubs and in wbuf.c.
Memory and NOR backed applications should experience no difference in
operation since they do not expose the callbacks required for write
buffer support.
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This pulls in wbuf.c from the upstream Linux repository at the state
specified in VERSION.
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Mutexes must be locked before they can be unlocked. JFFS2 doesn't
currently see this as an issue because all mutex operations are no-ops.
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The kernel space parts of standard system header files were protected
against misuse by a preprocessor error directive. This approach does
not work well with tools such as Doxygen. Provide the kernel space
items only if the required defines are present.
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The comment above bintime2timespec() says:
When converting between timestamps on parallel timescales of differing
resolutions it is historical and scientific practice to round down.
However, the delta_nsec value is a time difference and not a timestamp. Also
the rounding errors accumulate in the frequency accumulator, see hardpps().
So, rounding to the closest integer is probably slightly better.
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/604
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Let A be the current calculation of the frequency accumulator (pps_fcount)
update in pps_event()
scale = (uint64_t)1 << 63;
scale /= captc->tc_frequency;
scale *= 2;
bt.sec = 0;
bt.frac = 0;
bintime_addx(&bt, scale * tcount);
bintime2timespec(&bt, &ts);
hardpps(tsp, ts.tv_nsec + 1000000000 * ts.tv_sec);
and hardpps(..., delta_nsec):
u_nsec = delta_nsec;
if (u_nsec > (NANOSECOND >> 1))
u_nsec -= NANOSECOND;
else if (u_nsec < -(NANOSECOND >> 1))
u_nsec += NANOSECOND;
pps_fcount += u_nsec;
This change introduces a new calculation which is slightly simpler and more
straight forward. Name it B.
Consider the following sample values with a tcount of 2000000100 and a
tc_frequency of 2000000000 (2GHz).
For A, the scale is 9223372036. Then scale * tcount is 18446744994337203600
which is larger than UINT64_MAX (= 18446744073709551615). The result is
920627651984 == 18446744994337203600 % UINT64_MAX. Since all operands are
unsigned the result is well defined through modulo arithmetic. The result of
bintime2timespec(&bt, &ts) is 49. This is equal to the correct result
1000000049 % NANOSECOND.
In hardpps(), both conditional statements are not executed and pps_fcount is
incremented by 49.
For the new calculation B, we have 1000000000 * tcount is 2000000100000000000
which is less than UINT64_MAX. This yields after the division with tc_frequency
the correct result of 1000000050 for delta_nsec.
In hardpps(), the first conditional statement is executed and pps_fcount is
incremented by 50.
This shows that both methods yield roughly the same results. However, method B
is easier to understand and requires fewer conditional statements.
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/604
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Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/604
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