The select function wrapper was rewritten to be non-blocking
on Linux systems, as it was stealing all the CPU time
from lower priority tasks when called from a higher priority task.
This is because the FreeRTOS scheduler does not know
that the task thread is sleeping during the system call.
This issue manifests all "slow" system calls on the Linux target,
but handling the case of select fixes the problems for most ESP-IDF components.
The FreeRTOS POSIX port documentation lists this as a known issue,
so user code is responsible handling this case if other system calls are used,
even if unknowingly.
This closes GH issue #14395 "select() blocks the FreeRTOS scheduler on Linux target"
This commit fixes a potential issue of illegal memory access when
accessing the various task lists in FreeRTOS while fetching tasks using
the xTaskGetNext() function.
- vTaskPreemptionDisable()/vTaskPreemptionEnable() are no longer available in
single-core builds.
- xTaskIncrementTick() calls must now be wrapped by critical section
- Minimal Idle Task renamed to Passive Idle Task
- Port critical section APIs updated
This commit changes the approach used to override select function
in FreeRTOS simulator.
The previous approach relied on '--wrap', which is a feature of GNU
linker that performs symbol substitution at link time. Sadly this
feature is not present in macOS linker.
The alternative solution is to define 'select' wrapper as a regular
(exported) symbol, preventing it from being loaded from system
libraries. To call the "real" select implementation we use dlsym
function and find the function pointer at run time. This solution
works on both Linux and macOS.
This commit adds esp_backtrace_print_all_tasks() which prints the backtraces
of all tasks at runtime.
Closes https://github.com/espressif/esp-idf/issues/9708
CLoses https://github.com/espressif/esp-idf/pull/11575
[Omar Chebib: Prevent task switching while printing backtraces of tasks.]
[Omar Chebib: Ensure all task stacks are flushed from register to RAM.]
[Omar Chebib: Removed esp_task_snapshot_to_backtrace_frame() as task snapshot is private API.]
[Omar Chebib: Added test case for esp_backtrace_print_all_tasks().]
Signed-off-by: Omar Chebib <omar.chebib@espressif.com>
This commit does the following:
- removes the xCoreID member from the TCB when building for single-core
- xCoreID is no longer hard set to 0 when calling "PinnedToCore" task creation
functions in single-core
- Tidy up or add missing xCoreID asserts for functions that take xCoreID as an
argument:
- Functions that set/query a variable of a particular core will call
taskVALID_CORE_ID() to ensure ) 0 <= xCoreID < configNUMBER_OF_CORES
- Task creation functions that accept xCoreID also call taskVALID_CORE_ID()
but also allow tskNO_AFFINITY.
- Fix TaskStatus_t
- Remove xCoreID from TaskStatus_t if configTASKLIST_INCLUDE_COREID is not
defined.
- Set xCoreID to 0 when calling vTaskGetInfo() in single-core builds
This commit adds a taskVALID_CORE_ID() macro, similar to the one offered in
Amazon SMP FreeRTOS.
- Various functions have been updated to use that macro
- Removed some unecessary static asserts of CONFIG_FREERTOS_NO_AFFINITY and
added casting.
- Uncrustify changes
This commit deprecates xTaskGetAffinity(), xTaskGetCurrentTaskHandleForCPU()
and xTaskGetIdleTaskHandleForCPU() APIs for IDF-FreeRTOS kernel.
Instead, users are directed to use alternatives. All other
components in IDF using these functions have been updated accordingly.
This commit refactors some of the thread safety convenience macros by removing
some repeated definitions and keeping them all in "freertos_idf_additions_priv.h"
* The function was based on an outdated IDF/FreeRTOS
combination which didn't always require zero-ing
the TCB. This has been changed in the current
IDF/FreeRTOS combination, leading to crashes.
Unconditionally zero-ing the TCB fixes this problem.
This commit optimizes the following utility functions to achieve higher
overall system performance:
xTaskGetCurrentTaskHandle():
- Made into stand alone function instead of wrapper call to "ForCore" variant
- Replaced critical sections with disabling interrupts. Lack of lock contention
improves performance.
xTaskGetCurrentTaskHandleForCore():
- Removed unecessary critical sections
xTaskGetSchedulerState():
- Replaced critical sections with disabling interrupts. Lack of lock contention
improves performance.
This commit makes v10.5.1 the default FreeRTOS kernel in ESP-IDF by removing
the CONFIG_FREERTOS_USE_KERNEL_10_5_1 option and v10.4.3 specific code
blocks.
* Added prvTaskCreateDynamicAffinitySetWithCaps
and prvTaskCreateDynamicPinnedToCoreWithCaps
which allocate the task's stack in PSRAM instead of
internal RAM. These functions are only available if
PSRAM is enabled.
This commit adds `pvTaskGetCurrentTCBForCore()` to get a void pointer to the
current TCB of a particular core. This removes the need to `extern `pxCurrentTCB`
in esp_gdbstub.
This commit deprecates the `#include "freertos/task_snapshot.h" include path:
- Adds compatibility header with compile time warning
- Removes hints related to `task_snapshot.h`
- Adds entry to migration guide
Task snapshot API were never intended to be called from user code. This commit
makes task snapshot a private API thus moves `#include "freertos/task_snapshot.h"`
to `#include "esp_private/freertos_debug.h"`.
Task snapshot related Kconfig options have also been hidden.
Note: Added 'freertos_common' mapping to ldgen mapping execptions lists due to
inlining of 'freertos_debug.h' functions.
This commit adds beta support for the FreeRTOS v10.5.1 kernel which can be
enabled by enabling the CONFIG_FREERTOS_USE_KERNEL_10_5_1 option.
The following changes have been made:
- Updated freertos/CMakeLists.txt to build v10.5.1 kernel with v10.4.3. ports
- Updated existing Xtensa and RISC-V ports to work with V10.5.1
- Modifications to other ESP-IDF components to work with v10.5.1
- Added some ESP-IDF specific tracing changes to v10.5.1 kernel
- Make CONFIG_FREERTOS_USE_KERNEL_10_5_1 a public option
Note: The beta release is missing some minor fixes, performance improvements,
and features. Using this beta release for production is not recommended.
Closes https://github.com/espressif/esp-idf/issues/7137
This commit adds the SMP critical section changes to the v10.5.1 kernel. These
changes are temporarily documented in the `idf_changes.md` document. This
commit...
- Adds granular spinlocks to each data group (e.g., kernel, queues, event_groups etc.)
- Updates critical section macros to use those spinlocks
- Add missing critical sections required in SMP
This commit adds the key kernel changes to the v10.5.1 kernel to support
dual-core SMP. These changes are temporarily documented in the `idf_changes.md`
document. This commit...
- Added changes to kernel data structures to support multiple cores
- Changes to scheduling algorithm support SMP scheduling.
- Changes to each FreeRTOS function to support multiple cores and SMP
scheduling algorithm.
This commit moves/merges the IDF FreeRTOS "PinnedToCore" task creation
functions from tasks.c/task.h to idf_additions.h/freertos_task_c_additions.h.
Also updated FreeRTOS Mock component to provide mocks for "idf_additions.h"
headers for our mock tests.
A weak xTimerCreateTimerTask() was added to tasks.c as a workaround in ESP-IDF
in order to prevent timers.c from being linked when unused.
This commit moves that workaround to `freertos_tasks_c_additions.h`
This function moves ulTaskNotifyTake()/xTaskNotifyWait() from IDF FreeRTOS
`tasks.c` to `freertos_compatibility.c`. These functions were kept for
pre-compiled library compatibilty. Move them reduces the kernel source code
difference when compared to upstream FreeRTOS.
This commit combines various task utility API additions in IDF FreeRTOS and with
their Amazon SMP FreeRTOS addition counterparts. The folloiwng functions have
been moved to freertos_tasks_c_additions.h and idf_additions.h as these API
are considered public:
- xTaskGetCurrentTaskHandleForCPU()
- xTaskGetIdleTaskHandleForCPU()
- xTaskGetAffinity()
- pxTaskGetStackStart()
Also fixed in missing #if macros when vTaskCoreAffinityGet() is called in
Amazon SMP FreerTOS tests.
This commit moves xTaskIncrementTickOtherCores() to freertos_tasks_c_additions.h
and freertos_idf_additions_priv.h (as API is private). This reduces the code
differences cmpared to upstream FreeRTOS.
- The following IDF API additions are moved to freertos_tasks_c_additions.h
(implementation) and freertos_idf_additions_priv.h (declaration) as APIs are
private. This reduces the source code difference from upstream.
- prvENTER_CRITICAL_OR_SUSPEND_ALL()
- prvEXIT_CRITICAL_OR_RESUME_ALL()
- prvENTER_CRITICAL_OR_MASK_ISR()
- prvEXIT_CRITICAL_OR_UNMASK_ISR()
- vTaskTakeKernelLock()
- vTaskReleaseKernelLock()
- Rename vTask[Take/Release]KernelLock() to prv[Take/Release]KernelLock() to
indicate that the this API is private.
- Move vTaskStartSchedulerOtherCores()
- implementation to freertos_tasks_c_additions.h
- declaration to freertos_idf_additions_priv.h as API is private
- Rename vTaskStartSchedulerOtherCores() -> prvStartSchedulerOtherCores() to
indicate that the function is private.
This commit adds an implicit inclusion of `idf_additions.h` to `FreeRTOS.h` in
preparation for moving some IDf specific API to `idf_additions.h`.
This implict inclusion allows existing code to be continue using these
relocated APIs without any changes in header inclusions.
Also removed "#pragma once" directive from "freertos_tasks_c_additions.h" since
that header is included as a source file.
- Uncrustified IDF addition related header/source files
- Reorganized functions into groups
- linker_common.lf updated to adhere to new function organization
Previously, Task Snapshot could be conditionally built based on the
CONFIG_FREERTOS_ENABLE_TASK_SNAPSHOT option. However, there is no overhead
with always enabling Task Snapshot functions, as the linker will remove any
functions if they are not called.
This commit...
- removes all ESP-IDF dependencies on the CONFIG_FREERTOS_ENABLE_TASK_SNAPSHOT
option so that Task Snapshot functions are always available.
- Makes CONFIG_FREERTOS_ENABLE_TASK_SNAPSHOT a hidden option to maintain
compatibility with user code.
- adds documentation regarding Task Snapshot.
- add hardware stack guard based on assist-debug module
- enable hardware stack guard by default
- disable hardware stack guard for freertos ci.release test
- refactor rtos_int_enter/rtos_int_exit to change SP register inside them
- fix panic_reason.h header for RISC-V
- update docs to include information about the new feature
This commit refactors the "freertos" component's structure as follows:
- "FreeRTOSConfig.h" related files moved to "./config" directory
- Refactored CMakeLists.txt file in preparation for v10.5.1 upgrade
- Grouped list appends based on component organization
- Removed some unecessarily public "include_dirs"
- Removed FreeRTOS-openocd.c
- uxTopUsedPriority has been added back to tasks.c since v10.4.2
- Thus the workaround in FreeRTOS-openocd.c is no longer needed and can
be removed.
linux/lwip: Wrap some IO posix functions
* to workaourd the FreeRTOS EINTR issue (when building without lwip)
* to correctly choose the sub-system based on fd (when building with
lwip) -- passing control to either linux/system or to lwip
This commit also addapts tapio-if to provide DHCP client by default and
configurable settings for static IP
* Added a POSIX/Linux simulator that is compatible with the Amazon
FreeRTOS SMP API. Note that the simulator itself is still
single core, like the IDF FreeRTOS POSIX/Linux simulator.
