Mostly simple. Note that the CMSIS RTOS2 API specifies timeout values
in system ticks instead of milliseconds, so the conversions here are
able to elide a conversion that the original code had to do. That's a
good thing, but does mean that in practice runtime behavior will not
be 1:1 identical.
Also note that the switch away from legacy timeouts involved a change
to 64 bit timeouts by default, which pushed
tests/portability/cmsis_rtos_v2 over the limit on qemu_xtensa.
Unfortunately CMSIS stacks have a fixed limit we can't increase, so I
turned off 64 bit timeouts (CMSIS apps won't need them by definition
anyway -- their API is 32 bit).
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
No complexity here. The CMSIS API was always in milliseconds, needs
nothing but a few wrapper macros for kernel timeout arguments.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
DTLS without peer verification offers no security whatsoever (and is
arguably worse than not using DTLS in the first place).
Change the verification option to require this peer verification. To
use this, it may be necessary to install and use a root certificate.
Signed-off-by: David Brown <david.brown@linaro.org>
Move defines for _RAM_ADDR, _RAM_SIZE, _ROM_ADDR, and _ROM_ADDR into
the linker.ld and thus remove dts_fixup.h. We rework to use
DT_REG_ADDR and DT_REG_SIZE on DT_CHOSEN(zephyr_sram) and
DT_CHOSEN(zephyr_flash).
Also fixup use of _RAM_ADDR/_RAM_SIZE in newlib/libc-hooks.c.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Replace DT_PHYS_RAM_ADDR and DT_RAM_SIZE with DT_REG_ADDR/DT_REG_SIZE
for the DT_CHOSEN(zephyr_sram) node.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The bounds check failed to account for the additional space required
for the terminating NUL after the encoded value was written.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This implements a file descriptor used for event notification that
behaves like the eventfd in Linux.
The eventfd supports nonblocking operation by setting the EFD_NONBLOCK
flag and semaphore operation by settings the EFD_SEMAPHORE flag.
The major use case for this is when using poll() and the sockets that
you poll are dynamic. When a new socket needs to be added to the poll,
there must be some way to wake the thread and update the pollfds before
calling poll again. One way to solve it is to have a timeout set in the
poll call and only update the pollfds during a timeout but that is not
a very nice solution. By instead including an eventfd in the pollfds,
it is possible to wake the polling thread by simply writing to the
eventfd.
Signed-off-by: Tobias Svehagen <tobias.svehagen@gmail.com>
The previous architecture proved unable to support user expectations,
so the API has been rebuilt from first principles. Backward
compatibility cannot be maintained for this change.
Key changes include:
* Formerly the service-provided transition functions were allowed to
sleep, and the manager took care to not invoke them from ISR
context, instead returning an error if unable to initiate a
transition. In the new architecture transition functions are
required to work regardless of calling context: it is the service's
responsibility to guarantee the transition will proceed even if it
needs to be transferred to a thread. This eliminates state machine
complexities related to calling context.
* Constants identifying the visible state of the manager are exposed
to clients through both notification callbacks and a new monitor API
that allows clients to be notified of all state changes.
* Formerly the release operation was async, and would be delayed for the
last release to ensure a client would exist to be notified of any
failures. It is now synchronous.
* Formerly the cancel operation would fail on the last client associated
with a transition. The cancel operation is now synchronous.
* A helper function is provided to safely synchronously release a
request regardless of whether it has completed or is in progress,
satisfying the use case underlying #22974.
* The user-data parameter to asynchronous notification callbacks has
been removed as user data can be retrieved from the CONTAINER_OF
the client data.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Fix thread fault, on user mode, when reading variable rt_clock_base.
For the moment, clock_settime is left without system call:
we don't want to expose clock_settime without figuring out access
control
Signed-off-by: Julien D'Ascenzio <julien.dascenzio@paratronic.fr>
Improve buffer overflow security on probe_cb. This ensures that socket
buffer have fixed lenght and content received by COAP fills properly on
metadata buffer. After that, ensures that metadata content is a valid
string with length lower than metadata size.
Signed-off-by: Gerson Fernando Budke <gerson.budke@ossystems.com.br>
A malformed JSON payload that is received from an UpdateHub server
may trigger memory corruption in the Zephyr OS. This could result
in a denial of service in the best case, or code execution in the
worst case.
Signed-off-by: Gerson Fernando Budke <gerson.budke@ossystems.com.br>
The existing mem_pool implementation has been an endless source of
frustration. It's had alignment bugs, it's had racy behavior. It's
never been particularly fast. It's outrageously complicated to
configure statically. And while its fragmentation resistance and
overhead on small blocks is good, it's space efficiencey has always
been very poor due to the four-way buddy scheme.
This patch introduces sys_heap. It's a more or less conventional
segregated fit allocator with power-of-two buckets. It doesn't expose
its level structure to the user at all, simply taking an arbitrarily
aligned pointer to memory. It stores all metadata inside the heap
region. It allocates and frees by simple pointer and not block ID.
Static initialization is trivial, and runtime initialization is only a
few cycles to format and add one block to a list header.
It has excellent space efficiency. Chunks can be split arbitrarily in
8 byte units. Overhead is only four bytes per allocated chunk (eight
bytes for heaps >256kb or on 64 bit systems), plus a log2-sized array
of 2-word bucket headers. No coarse alignment restrictions on blocks,
they can be split and merged (in units of 8 bytes) arbitrarily.
It has good fragmentation resistance. Freed blocks are always
immediately merged with adjacent free blocks. Allocations are
attempted from a sample of the smallest bucket that might fit, falling
back rapidly to the smallest block guaranteed to fit. Split memory
remaining in the chunk is always returned immediately to the heap for
other allocation.
It has excellent performance with firmly bounded runtime. All
operations are constant time (though there is a search of the smallest
bucket that has a compile-time-configurable upper bound, setting this
to extreme values results in an effectively linear search of the
list), objectively fast (about a hundred instructions) and amenable to
locked operation. No more need for fragile lock relaxation trickery.
It also contains an extensive validation and stress test framework,
something that was sorely lacking in the previous implementation.
Note that sys_heap is not a compatible API with sys_mem_pool and
k_mem_pool. Partial wrappers for those (now-) legacy APIs will appear
later and a deprecation strategy needs to be chosen.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
The original API was misnamed, as the intent was to provide a manager
that decoupled state management from the service that needed to be
turned on or off. Update all the names, shortening them where
appropriate removing unncessary internal components like _service.
Also remove some API that misled developers into believing that onoff
managers are normally expected to be exposed directly to consumers.
While this is a use case, in most situations there are service or
client-specific actions that need to be coupled to transition events.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
k_poll() for a signal is often desired for notification of completion
of asynchronous operations, but there are APIs where it may be
necessary to invoke "asynchronous" operations from contexts where
sleep is disallowed, or before the kernel has been initialized.
Extract the general notification solution from the on-off service into
a utility that can be used for other APIs.
Also move documentation out to a resource management section.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Extracted transition functions from onoff structure to external one
which allows to keep them in flash.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
The resource table is needed by the Linux kernel OS
for a rpmsg generic support, but is also recognised by OpenAMP.
This table allows to add trace based on the RAM console
and to support rpmsg protocol.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Add a k_timeout_t type, and use it everywhere that kernel API
functions were accepting a millisecond timeout argument. Instead of
forcing milliseconds everywhere (which are often not integrally
representable as system ticks), do the conversion to ticks at the
point where the timeout is created. This avoids an extra unit
conversion in some application code, and allows us to express the
timeout in units other than milliseconds to achieve greater precision.
The existing K_MSEC() et. al. macros now return initializers for a
k_timeout_t.
The K_NO_WAIT and K_FOREVER constants have now become k_timeout_t
values, which means they cannot be operated on as integers.
Applications which have their own APIs that need to inspect these
vs. user-provided timeouts can now use a K_TIMEOUT_EQ() predicate to
test for equality.
Timer drivers, which receive an integer tick count in ther
z_clock_set_timeout() functions, now use the integer-valued
K_TICKS_FOREVER constant instead of K_FOREVER.
For the initial release, to preserve source compatibility, a
CONFIG_LEGACY_TIMEOUT_API kconfig is provided. When true, the
k_timeout_t will remain a compatible 32 bit value that will work with
any legacy Zephyr application.
Some subsystems present timeout (or timeout-like) values to their own
users as APIs that would re-use the kernel's own constants and
conventions. These will require some minor design work to adapt to
the new scheme (in most cases just using k_timeout_t directly in their
own API), and they have not been changed in this patch, instead
selecting CONFIG_LEGACY_TIMEOUT_API via kconfig. These subsystems
include: CAN Bus, the Microbit display driver, I2S, LoRa modem
drivers, the UART Async API, Video hardware drivers, the console
subsystem, and the network buffer abstraction.
k_sleep() now takes a k_timeout_t argument, with a k_msleep() variant
provided that works identically to the original API.
Most of the changes here are just type/configuration management and
documentation, but there are logic changes in mempool, where a loop
that used a timeout numerically has been reworked using a new
z_timeout_end_calc() predicate. Also in queue.c, a (when POLL was
enabled) a similar loop was needlessly used to try to retry the
k_poll() call after a spurious failure. But k_poll() does not fail
spuriously, so the loop was removed.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Kernel timeouts have always been a 32 bit integer despite the
existence of generation macros, and existing code has been
inconsistent about using them. Upcoming commits are going to make the
timeout arguments opaque, so fix things up to be rigorously correct.
Changes include:
+ Adding a K_TIMEOUT_EQ() macro for code that needs to compare timeout
values for equality (e.g. with K_FOREVER or K_NO_WAIT).
+ Adding a k_msleep() synonym for k_sleep() which can continue to take
integral arguments as k_sleep() moves away to timeout arguments.
+ Pervasively using the K_MSEC(), K_SECONDS(), et. al. macros to
generate timeout arguments.
+ Removing the usage of K_NO_WAIT as the final argument to
K_THREAD_DEFINE(). This is just a count of milliseconds and we need
to use a zero.
This patch include no logic changes and should not affect generated
code at all.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
After a success image download, UpdateHub needs inform MCUboot that
must test new image and then, on success, commit this new image. This
add missing upgrade request call step and fixes the upgarde flow.
Signed-off-by: Gerson Fernando Budke <gerson.budke@ossystems.com.br>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
The current version aborts update when found last transfer block. Now,
system checks only at end of coap block transfer total size and install
if download is ok.
Signed-off-by: Gerson Fernando Budke <gerson.budke@ossystems.com.br>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
The MAX_PAYLOAD_SIZE must reflect the size of COAP_BLOCK_x. This is
necessary becase BLOCK size represents max payload size. The current
value create inconsistencies for coap lib. The same way,
MAX_DOWNLOAD_DATA must allocate sufficient space for MAX_PAYLOAD_SIZE
plus all space for coap header etc.
Signed-off-by: Gerson Fernando Budke <gerson.budke@ossystems.com.br>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
This commit changes the behaviour of the CMSIS-RTOS periodic timers to
have an initial timeout equal to the periodic timeout instead of
executing the callback function directly when calling the
osTimerStart(...); function.
This behavioural change is according to the CMSIS-RTOS specification.
Signed-off-by: Måns Ansgariusson <Mans.Ansgariusson@AssaAbloy.com>
Since we already have similarly licensed 3-clause BSD files in the tree,
and in particular in our minimal libc, move the fnmatch functionality
from ext/ to lib/.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
This reverts commit 8739517107.
Pull Request #23437 was merged by mistake with an invalid manifest.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Private type, internal to the kernel, not directly associated
with any k_object_* APIs. Is the return value of z_object_find().
Rename to struct z_object.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Rather than stuffing various values in a uintptr_t based on
type using casts, use a union for this instead.
No functional difference, but the semantics of the data member
are now much clearer to the casual observer since it is now
formally defined by this union.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Adding the ability to set and get pthread names by defining
some non-standard extension functions that were first
introduced by Glibc.
Similar to zephyr thread naming, these allow for thread
tracking and debugging even when using the more portable
posix API.
Though Glibc was the originator, the current POSIX functions
have return codes based on Oracle's adopted spec, so these
functions follow suit. The Oracle and Glibc function
prototypes match.
Signed-off-by: Nicholas Lowell <nlowell@lexmark.com>
timespec_to_timeoutms calls clock_gettime that requires
CONFIG_POSIX_CLOCK. ifdef this function to avoid undefined reference.
Fixes#20137
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
I think people might be reading differences into 'if' and 'depends on'
that aren't there, like maybe 'if' being needed to "hide" a symbol,
while 'depends on' just adds a dependency.
There are no differences between 'if' and 'depends on'. 'if' is just a
shorthand for 'depends on'. They work the same when it comes to creating
implicit menus too.
The way symbols get "hidden" is through their dependencies not being
satisfied ('if'/'depends on' get copied up as a dependency on the
prompt).
Since 'if' and 'depends on' are the same, an 'if' with just a single
symbol in it can be replaced with a 'depends on'. IMO, it's best to
avoid 'if' there as a style choice too, because it confuses people into
thinking there's deep Kconfig magic going on that requires 'if'.
Going for 'depends on' can also remove some nested 'if's, which
generates nicer symbol information and docs, because nested 'if's really
are so simple/dumb that they just add the dependencies from both 'if's
to all symbols within.
Replace a bunch of single-symbol 'if's with 'depends on' to despam the
Kconfig files a bit and make it clearer how things work. Also do some
other minor related dependency refactoring.
The replacement isn't complete. Will fix up the rest later. Splitting it
a bit to make it more manageable.
(Everything above is true for choices, menus, and comments as well.)
Detected by tweaking the Kconfiglib parsing code. It's impossible to
detect after parsing, because 'if' turns into 'depends on'.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
The existing stack_analyze APIs had some problems:
1. Not properly namespaced
2. Accepted the stack object as a parameter, yet the stack object
does not contain the necessary information to get the associated
buffer region, the thread object is needed for this
3. Caused a crash on certain platforms that do not allow inspection
of unused stack space for the currently running thread
4. No user mode access
5. Separately passed in thread name
We deprecate these functions and add a new API
k_thread_stack_space_get() which addresses all of these issues.
A helper API log_stack_usage() also added which resembles
STACK_ANALYZE() in functionality.
Fixes: #17852
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
With the change in SDK 0.11.1 to newlib to remove
-DMISSING_SYSCALL_NAMES we now need to implement a version of
_gettimeofday. Previously with pre SDK 0.11.1 we had a recursive mess
of _gettimeofday_r -> gettimeofday -> _gettimeofday_r. (which are all
implemented in newlib and thus we didn't get a link error).
With SDK 0.11.1 we have: _gettimeofday_r -> _gettimeofday. And we
should provide a version of _gettimeofday.
Fixes#22484
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
On xtensa we always need to implement the reentrant fs syscall
functions. So remove the #ifndef CONFIG_POSIX_API protection around
them and add needed externs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The xcc specific reentrant syscall implementations are actually useful
for xtensa in general. So move that code from being specific to
intel_s1000 / xcc into generic newlib/libc-hooks.c. This is in prep
for the Zephyr SDK dropping -DMISSING_SYSCALL_NAMES which will make
its version of newlib on xtensa match behavior with xcc.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Adds support for an optional lvgl touch input device using the zephyr
keyboard scan interface. This can be used with the ft5336 touch panel
driver, which returns single touch coordinates through the kscan
driver callback.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Introduce HAS_NEWLIB_LIBC_NANO Kconfig option that the toolchain
specific Kconfig (gnuarmemb & zephyr 0.11) can select to convey that the
feature is supported.
This removes the need to if protect the NEWLIB_LIBC_NANO Kconfig with:
if "$(ZEPHYR_TOOLCHAIN_VARIANT)" = "gnuarmemb"
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
There are various situations where it's necessary to support turning
devices on or off at runtime, includin power rails, clocks, other
peripherals, and binary device power management. The complexity of
properly managing multiple consumers of a device in a multithreaded
system suggests that a shared implementation is desirable. This
commit provides an API that supports managing on-off resources.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The CONFIG_ prefixes were missing.
Found with a work-in-progress scripts/kconfig/lint.py check.
These are defined in lib/gui/lvgl/Kconfig.objects.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Adds support for the BGR565 pixel format to lvgl. This fixes the lvgl
sample for mimxrt10{50,60,64}_evk boards, which were broken when the
mcux elcdif display driver was modified in commit
9041b0f119 to return the BGR565 pixel
format instead of RGB565.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
`TLS_PEER_VERIFY` and `TLS_DTLS_ROLE` options accept specific values,
yet no symbols were defined for them. In result, magic numbers were used
in several places, making the code less readable.
Fix this issue, by adding the missing symbols to the `socket.h` header,
and using them in places where related socket options are set.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Completely remove the file info and condition expression from the
the print statement if they are not enabled. This saves a little code
space which adds up when there are many assert calls.
In bluetooth shell test this saves around 4.5k bytes.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
The intention of disabling CONFIG_PRINTK is that all
invocations of it will compile to nothing, saving a lot
of runtime overhead and footprint since all the format
strings are completely dropped; instances of printk()
and related functions are no-ops.
However, some subsystems need snprintk() for string
processing, since the snprintf() implementations in even
minimal C library are too costly in text footprint or
stack usage for some applications. This processing is
required for the application to even function.
This patch continues to have disabling CONFIG_PRINTK to
cause the non snprintk functions to become no-ops, but
now we always compile the necessary bits for snprintk(),
relying on gc-sections to discard them if unused.
z_vprintk() is now unconditionally defined in the header
since it is not tied to any particular output sink and
is intended for users who know exactly what they are
doing (it's in zephyr private scope).
Relates to: #21564
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Severely memory constrained systems with known allocation patterns can
benefit from providing their own implementation of malloc with
specifically tuned bucket sizes. Provide a switch to allow users to
replace the default malloc implementation with their own.
Signed-off-by: Josh Gao <josh@jmgao.dev>
Remove leading/trailing blank lines in .c, .h, .py, .rst, .yml, and
.yaml files.
Will avoid failures with the new CI test in
https://github.com/zephyrproject-rtos/ci-tools/pull/112, though it only
checks changed files.
Move the 'target-notes' target in boards/xtensa/odroid_go/doc/index.rst
to get rid of the trailing blank line there. It was probably misplaced.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Mark the old time conversion APIs deprecated, leave compatibility
macros in place, and replace all usage with the new API.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Promote the private z_arch_* namespace, which specifies
the interface between the core kernel and the
architecture code, to a new top-level namespace named
arch_*.
This allows our documentation generation to create
online documentation for this set of interfaces,
and this set of interfaces is worth treating in a
more formal way anyway.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit refactors kernel and arch headers to establish a boundary
between private and public interface headers.
The refactoring strategy used in this commit is detailed in the issue
This commit introduces the following major changes:
1. Establish a clear boundary between private and public headers by
removing "kernel/include" and "arch/*/include" from the global
include paths. Ideally, only kernel/ and arch/*/ source files should
reference the headers in these directories. If these headers must be
used by a component, these include paths shall be manually added to
the CMakeLists.txt file of the component. This is intended to
discourage applications from including private kernel and arch
headers either knowingly and unknowingly.
- kernel/include/ (PRIVATE)
This directory contains the private headers that provide private
kernel definitions which should not be visible outside the kernel
and arch source code. All public kernel definitions must be added
to an appropriate header located under include/.
- arch/*/include/ (PRIVATE)
This directory contains the private headers that provide private
architecture-specific definitions which should not be visible
outside the arch and kernel source code. All public architecture-
specific definitions must be added to an appropriate header located
under include/arch/*/.
- include/ AND include/sys/ (PUBLIC)
This directory contains the public headers that provide public
kernel definitions which can be referenced by both kernel and
application code.
- include/arch/*/ (PUBLIC)
This directory contains the public headers that provide public
architecture-specific definitions which can be referenced by both
kernel and application code.
2. Split arch_interface.h into "kernel-to-arch interface" and "public
arch interface" divisions.
- kernel/include/kernel_arch_interface.h
* provides private "kernel-to-arch interface" definition.
* includes arch/*/include/kernel_arch_func.h to ensure that the
interface function implementations are always available.
* includes sys/arch_interface.h so that public arch interface
definitions are automatically included when including this file.
- arch/*/include/kernel_arch_func.h
* provides architecture-specific "kernel-to-arch interface"
implementation.
* only the functions that will be used in kernel and arch source
files are defined here.
- include/sys/arch_interface.h
* provides "public arch interface" definition.
* includes include/arch/arch_inlines.h to ensure that the
architecture-specific public inline interface function
implementations are always available.
- include/arch/arch_inlines.h
* includes architecture-specific arch_inlines.h in
include/arch/*/arch_inline.h.
- include/arch/*/arch_inline.h
* provides architecture-specific "public arch interface" inline
function implementation.
* supersedes include/sys/arch_inline.h.
3. Refactor kernel and the existing architecture implementations.
- Remove circular dependency of kernel and arch headers. The
following general rules should be observed:
* Never include any private headers from public headers
* Never include kernel_internal.h in kernel_arch_data.h
* Always include kernel_arch_data.h from kernel_arch_func.h
* Never include kernel.h from kernel_struct.h either directly or
indirectly. Only add the kernel structures that must be referenced
from public arch headers in this file.
- Relocate syscall_handler.h to include/ so it can be used in the
public code. This is necessary because many user-mode public codes
reference the functions defined in this header.
- Relocate kernel_arch_thread.h to include/arch/*/thread.h. This is
necessary to provide architecture-specific thread definition for
'struct k_thread' in kernel.h.
- Remove any private header dependencies from public headers using
the following methods:
* If dependency is not required, simply omit
* If dependency is required,
- Relocate a portion of the required dependencies from the
private header to an appropriate public header OR
- Relocate the required private header to make it public.
This commit supersedes #20047, addresses #19666, and fixes#3056.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
A double-free could cause very hard to find bugs when using the mempool
allocator as the same memory would end up being allocated twice
afterwards.
Now that bits in the block bitmap are cleared only when actually freeing
a block, we may simply ensure those bits are still set before clearing
them, effectively catching most double-free cases.
The alloc_bit_is_set() function is made static inline so that when
assertion checks are disabled the compiler won't complain about unused
code.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Use this short header style in all Kconfig files:
# <description>
# <copyright>
# <license>
...
Also change all <description>s from
# Kconfig[.extension] - Foo-related options
to just
# Foo-related options
It's clear enough that it's about Kconfig.
The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)
git ls-files '*Kconfig*' | \
xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This prevents MINIMAL_LIBC from being selected by the user (in the
menuconfig or in a configuration file) when REQUIRES_FULL_LIBC is y.
'default' on a choice only determines the default selection, not what
symbols can be selected.
It's helpful to think of Kconfig in terms of someone going into the
menuconfig and making changes.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Clean up space errors and use a consistent style throughout the Kconfig
files. This makes reading the Kconfig files more distraction-free, helps
with grepping, and encourages the same style getting copied around
everywhere (meaning another pass hopefully won't be needed).
Go for the most common style:
- Indent properties with a single tab, including for choices.
Properties on choices work exactly the same syntactically as
properties on symbols, so not sure how the no-indentation thing
happened.
- Indent help texts with a tab followed by two spaces
- Put a space between 'config' and the symbol name, not a tab. This
also helps when grepping for definitions.
- Do '# A comment' instead of '#A comment'
I tweaked Kconfiglib a bit to find most of the stuff.
Some help texts were reflowed to 79 columns with 'gq' in Vim as well,
though not all, because I was afraid I'd accidentally mess up
formatting.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Not a top-level zephyr core API and tied to third party environment, so
move it to where the code is in lib/updatehub.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
There are two set of code supporting x86_64: x86_64 using x32 ABI,
and x86 long mode, and this consolidates both into one x86_64
architecture and SoC supporting truly 64-bit mode.
() Removes the x86_64:x32 architecture and SoC, and replaces
them with the existing x86 long mode arch and SoC.
() Replace qemu_x86_64 with qemu_x86_long as qemu_x86_64.
() Updates samples and tests to remove reference to
qemu_x86_long.
() Renames CONFIG_X86_LONGMODE to CONFIG_X86_64.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Added in commit ccd1c21824 ("lib/cmsis_rtos_v1: Implement support for
thread APIs"), then never used.
Found with a script.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Was impossible to enable due to a typo. Fix it.
Found with a script (LVGL_OBJ_WINDOW was unused besides
being enabled in tests/lib/gui/lvgl/prj.conf).
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
When small blocks are recombined to create a single block at a shallower
level, it is sufficient to remove those blocks from the free list. There
is no need to mark those small blocks as allocated in the bitmap.
This, in turn, removes the need to mark small blocks back as unallocated
when splitting up a big blocks as they'll already be so marked.
Only the first small block needs to be marked allocated and the
remaining blocks only need to be added to the free list.
This makes the code smaller and more efficient, especially since those
removed bit manipulations were located within loops.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
This turns the free-bit flag into an alloc-bit flag effectively
reversing its semantic. This is to make further changes more natural
and easier to understand.
No need to clear the alloc bits at init time as they're located in .bss
and all clear already.
The code remains functionally equivalent after this change.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Use the int_literal_to_timeout Coccinelle script to convert literal
integer arguments for kernel API timeout parameters to the standard
timeout value representations.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The main and idle threads, and their associated stacks,
were being referenced in various parts of the kernel
with no central definition. Expose these in kernel_internal.h
and namespace with z_ appropriately.
The main and idle threads were being defined statically,
with another variable exposed to contain their pointer
value. This wastes a bit of memory and isn't accessible
to user threads anyway, just expose the actual thread
objects.
Redundance MAIN_STACK_SIZE and IDLE_STACK_SIZE defines
in init.c removed, just use the Kconfigs they derive
from.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
z_set_thread_return_value is part of the core kernel -> arch
interface and has been renamed to z_arch_thread_return_value_set.
z_set_thread_return_value_with_data renamed to
z_thread_return_value_set_with_data for consistency.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
The realloc function was a bit too intimate with the mempool accounting.
Abstract that knowledge away and move it where it belongs.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Stop linking interface libraries against zephyr_interface. This is
cargo cult code that in practice does nothing.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Newlib has it defined in sys/timespec.h, and thus per the established
conventions, everything else relies on it being there. Specifically,
minimal libc acquires sys/timespec.h with a similar definition, and
POSIX headers rely on that header. Still with a workaround for old
Newlib version as used by Xtensa (but all infrastructure for that is
already there; actually, this patch removes duplicate similar-infra,
which apparently didn't work as expected by now, so now we have a
single workaround, not 2 different once).
To emphasize a point, now there 2 headers:
sys/_timespec.h, defining struct timespec, and
sys/timespec.h, defining struct itimerspec
That's how Newlib has it, and what we faithfully embrace and follow,
because otherwise, there will be header conflicts depending on
various libc and POSIX subsys options.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Allow to enable individual POSIX components, like Pthreads.
CONFIG_POSIX_API now just enables all of individual POSIX components,
and sets up environment suitable to easily port POSIX applications to
Zephyr.
Fixes: #12965
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Some modules use snprintk to format the settings keys. Unfortunately
snprintk is tied with printk which is very large for some embedded
systems.
To be able to have settings enabled without also enabling printk
support, change creation of settings key strings to use bin2hex, strlen
and strcpy instead.
A utility function to make decimal presentation of a byte value is
added as u8_to_dec in lib/os/dec.c
Add new Kconfig setting BT_SETTINGS_USE_PRINTK
Signed-off-by: Kim Sekkelund <ksek@oticon.com>
The algorithm for converting broken-down civil time to seconds in the
POSIX epoch time scale would produce undefined behavior on a toolchain
that uses a 32-bit time_t in cases where the referenced time could not
be represented exactly.
However, there are use cases in Zephyr for civil time conversions
outside the 32-bit representable range of 1901-12-13T20:45:52Z through
2038-01-19T03:14:07Z inclusive.
Add new API that specifically returns a 64-bit signed seconds count, and
revise the existing API to detect out-of-range values and convert them
to a diagnosible error.
Closes#18465
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
timeutil_timegm() does not modify the passed structure, so it should
indicate that in the signature (even though the GNU extension does not).
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
static_assert was not added to C until C11. Zephyr builds default to
C99. To preserve compatibility with newlib avoid defining the
macro at standard levels where it did not exist.
Relates to #17738 and #11754.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The semi-automated API changes weren't checkpatch aware. Fix up
whitespace warnings that snuck into the previous patches. Really this
should be squashed, but that's somewhat difficult given the structure
of the series.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
These calls are buildable on common sanitycheck platforms, but are not
invoked at runtime in any tests accessible to CI. The changes are
mostly mechanical, so the risk is low, but this commit is separated
from the main API change to allow for more careful review.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
System call arguments, at the arch layer, are single words. So
passing wider values requires splitting them into two registers at
call time. This gets even more complicated for values (e.g
k_timeout_t) that may have different sizes depending on configuration.
This patch adds a feature to gen_syscalls.py to detect functions with
wide arguments and automatically generates code to split/unsplit them.
Unfortunately the current scheme of Z_SYSCALL_DECLARE_* macros won't
work with functions like this, because for N arguments (our current
maximum N is 10) there are 2^N possible configurations of argument
widths. So this generates the complete functions for each handler and
wrapper, effectively doing in python what was originally done in the
preprocessor.
Another complexity is that traditional the z_hdlr_*() function for a
system call has taken the raw list of word arguments, which does not
work when some of those arguments must be 64 bit types. So instead of
using a single Z_SYSCALL_HANDLER macro, this splits the job of
z_hdlr_*() into two steps: An automatically-generated unmarshalling
function, z_mrsh_*(), which then calls a user-supplied verification
function z_vrfy_*(). The verification function is typesafe, and is a
simple C function with exactly the same argument and return signature
as the syscall impl function. It is also not responsible for
validating the pointers to the extra parameter array or a wide return
value, that code gets automatically generated.
This commit includes new vrfy/msrh handling for all syscalls invoked
during CI runs. Future commits will port the less testable code.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
The ARM embedded toolchain has 2 newlib based libc build variants, one
that utilizes the "nano" configuration which is more in line with the
Zephyr SDK. Make the "nano" cfg the default if newlib is enabled to
match closer how the Zephyr SDK behaves.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
To make sure that entry in fs.c:desc_array[] is freed. Note that
freeing an entry in fdtable is handled by generic implementation
of close().
Fixes: #17231
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
pthread_mutex_init() just redirects to Zephyr kernel primitive, for
initializing structure fields. So, use the knowledge that it can't
fail (for as long as structure pointer is initialized, and here it's
from pre-allocated array), and ignore return value of
pthread_mutex_init()
Coverity-CID: 203542
Fixes: #18371
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
The solution from #14312 of using -isystem to prioritize the position of
the libc directory bypasses the effect of -ffreestanding with respect to
libc symbols expected to be present in a non-hosted environment.
Further, it breaks C++ with the ARM Embedded toolchain as the system
fails to find the right file with #include_next.
Use a more fine-grained solution that explicitly includes the underlying
newlib header required for <inttypes.h> support before moving on to
include the next available one, whether system or non-system.
Closes#17564
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Consistently place C++ use of extern "C" after all include directives,
within the negative branch of _ASMLANGUAGE if used.
Background from issue #17997:
Declarations that use C linkage should be placed within extern "C"
so the language linkage is correct when the header is included by
a C++ compiler.
Similarly #include directives should be outside the extern "C" to
ensure the language-specific default linkage is applied to any
declarations provided by the included header.
See: https://en.cppreference.com/w/cpp/language/language_linkage
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Consistently place C++ use of extern "C" after all include directives,
within the negative branch of _ASMLANGUAGE if used.
Background from issue #17997:
Declarations that use C linkage should be placed within extern "C"
so the language linkage is correct when the header is included by
a C++ compiler.
Similarly #include directives should be outside the extern "C" to
ensure the language-specific default linkage is applied to any
declarations provided by the included header.
See: https://en.cppreference.com/w/cpp/language/language_linkage
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
