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* Fixed race condition and message loss in Cortex-M GNU, AC6, and IAR ports (#516)
- Added compiler memory barriers to BASEPRI management functions in tx_port.h.
- Added architectural barriers (DSB/ISB) to scheduler return paths in tx_port.h and tx_thread_system_return.S to prevent fall-through before context switch.
- These changes address spurious thread resumption and lost messages, especially when TX_NOT_INTERRUPTABLE is enabled.
- These changes ensure that pending interrupts (specifically PendSV) are recognised before subsequent instructions are executed, following Kairalite's feedback and ARM architectural guidelines.
Assisted-by: Gemini (Gemini 2.0 Flash)
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* Added a comment in common/tx_queue_cleanup to document why the NI path omits revalidation guards
- In `TX_NOT_INTERRUPTABLE` mode, the caller keeps interrupts disabled across the entire cleanup call, so the race window that makes the guards necessary in the interruptable path cannot occur. Add a comment explaining this, and noting that all paths that resume a suspended thread clear tx_thread_suspend_cleanup before calling
_tx_thread_system_ni_resume, making double-cleanup impossible.
This prevents future false-positive suggestions (e.g. from AI tools) to add redundant checks to the NI path.
Relates to: eclipse-threadx/threadx#516
Co-authored-by: Copilot <[email protected]>
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* Updated version number constants
* Removed revision history from all files
* Added Eclipse ThreadX contributors' copyright header
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af5702cbf Include tx_user.h only when TX_INCLUDE_USER_DEFINE_FILE is defined for assembly files
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cee19603d Include tx_user.h conditionally.
e40e08007 Update owners
d69641273 Update release date and version
394aee52f Add tx_user.h to GNU port assembly files
5cca2ddd0 RISC-V 64 bit port for Microchip
e0f2c373c Link Winmm.lib that required by the high-resolution timer.
6af472a68 Update Win32 port with high resolution timer.
aea7b556a Add DMB ISH barrier inst in ARMv8-A SMP scheduler
19091a262 Add .section .preamble to m3 m4 m7 module ports
ced60e1b7 Add missing parenthesis in ports assembly file
309dc77ca Modules Cortex-A7 IAR new port
c752a4063 Modules Cortex-A7 GNU new port
dc224b90f Fix race condition in tx_thread_wait_abort and update regression test
6e261f5b7 create threadx cmsis-pack
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b5d5df511 #include tx_user.h in assembly files for cortex-m ports
33e04e3d5 initial port of MIPS SMP for GHS and GNU
2eda2c17d capitalize extensions for M23 asm files
21c354ccb Fix armv7-m MPU settings for corner case, unify txm_module_port.h files
4a1ff93f9 remove uneeded include for ac6
c823e91ff update riscv iar example for latest iar tools
5559d185d check module stack for overlap (not kernel stack)
efa9ce7b7 apply patch from mobileye to fix time slice processing
75fdcb722 Updated copy_armv7_cm.yml
de04b9904 initialize unused MPU settings so that aliasing will work
79b317b60 add config directory to IAR RISC-V port in order to use simulator
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