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* Updated version number constants
* Updated port version strings
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Co-authored-by: Copilot <[email protected]>
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* Fixed #else replaced with #endif in tx_port.h for cortex_m3/m4/m7 gnu/ac6/iar ports
In the __set_basepri_value/#ifdef TX_PORT_USE_BASEPRI block, an #else
directive was incorrectly replaced with #endif in a prior commit.
This caused the TX_PORT_USE_BASEPRI guard to close prematurely and
left __enable_interrupts unconditionally visible (or triggered an
orphaned #endif / missing #endif error at compile time).
Affected ports: cortex_m3/ac6, cortex_m3/iar, cortex_m4/ac6,
cortex_m4/gnu, cortex_m4/iar, cortex_m7/ac6, cortex_m7/gnu,
cortex_m7/iar.
For cortex_m3/gnu and cortex_m4/gnu the fix restores the #else and
the existing second #endif now correctly closes the block.
For the ac6/iar variants of m3/m4 and all m7 variants, the #else is
restored and a missing closing #endif is added after __enable_interrupts.
Also adds Linux shell build scripts (build_threadx.sh and
build_threadx_sample.sh) for the cortex_m3/gnu, cortex_m4/gnu, and
cortex_m7/gnu example_build directories as Linux equivalents of the
existing .bat files.
* Fixed missing linker script symbols in cortex_m4/gnu example_build
cortexm4_crt0.S references several symbols that were absent from
sample_threadx.ld, causing undefined-reference linker errors when
building the sample:
- __text_load_start__, __text_start__, __text_end__
- __rodata_load_start__, __rodata_start__, __rodata_end__
- __fast_load_start__, __fast_start__, __fast_end__
- __ctors_load_start__, __dtors_load_start__
Changes:
- Added __text_start__/__text_end__ bounds to the .text section and
__text_load_start__ via LOADADDR(.text).
- Moved .rodata out of .text into its own section with start/end/load
- Added __ctors_load_start__ and __dtors_load_start__ markers within
.text (load address == VMA since the section is XIP in FLASH; the
crt0 copy call becomes a no-op).
- Added an empty .fast section in RAM with __fast_load_start__ pointing
to __fast_start__ so the crt0 fast-copy call is a no-op.
* Added Linux build scripts and fixed path bug in cortex_m23 for all ports changed between v6.5.0 and v6.5.1
Added build_threadx.sh (and build_threadx_sample.sh where applicable)
as Linux equivalents of the Windows .bat scripts for all GNU-toolchain
ports touched between v6.5.0.202601_rel and v6.5.1.202602_rel:
arm9, arm11, cortex_a5/a7/a8/a9/a12/a15/a17,
cortex_m0, cortex_m23, cortex_r4, cortex_r5
For cortex_m33/m55/m85 (which had no .bat equivalent), build_threadx.sh
was written from scratch using the port CMakeLists.txt source lists and
the correct CPU flags (-mcpu=cortex-m33/m55/m85 -mthumb).
Also fixed a pre-existing bug in cortex_m23/gnu/example_build/
build_threadx.bat (and the generated .sh): tx_thread_stack_error_handler.c
and tx_thread_stack_error_notify.c were referenced as ../src/ (port
directory) instead of ../../../../common/src/ where they actually live.
All 16 newly added build_threadx.sh scripts were verified to compile
successfully with arm-none-eabi-gcc 13.2.1.
---------
Closes #545
Co-authored-by: Copilot <[email protected]>
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Applied the standard MIT license header to all project-owned C, header,
assembly, shell, and Python files that were missing a copyright notice.
Third-party, toolchain startup, and auto-generated files were excluded.
Co-authored-by: Copilot <[email protected]>
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* Updated version number constants
* Updated port version strings
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Co-authored-by: Copilot <[email protected]>
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Add cmake/riscv-none-elf-rv32imc.cmake targeting the xPack
riscv-none-elf-gcc toolchain with rv32imc_zicsr/ilp32 ABI for
bare-metal CORE-V MCU builds.
Update cmake/riscv32-unknown-elf-rv32imc.cmake to correctly target
rv32gc/ilp32d (matching riscv-collab riscv32-elf ABI) for QEMU
regression tests.
Update cmake/riscv64-gcc-rv32imc.cmake compat alias to include
the new riscv-none-elf-rv32imc.cmake.
Update CORE-V MCU example_build: build.sh exports xPack PATH,
install_deps.sh downloads xPack 15.2.0-1, README.md reflects new
toolchain name/path.
Co-authored-by: Copilot <[email protected]>
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bsp/clz.c provided a weak __clzsi2 fallback to work around the missing
rv32 multilib in the riscv-collab riscv64-unknown-elf toolchain. Since
cmake/riscv32-unknown-elf-rv32imc.cmake now uses the dedicated riscv32-
unknown-elf-gcc toolchain (riscv-collab riscv32-elf release), which ships
a native rv32/ilp32 libgcc with all required helpers, the workaround is
no longer needed.
Remove bsp/clz.c and its entry in CMakeLists.txt.
Co-authored-by: Copilot <[email protected]>
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Renamed cmake/riscv64-gcc-rv32imc.cmake to the accurate name
cmake/riscv32-unknown-elf-rv32imc.cmake and switch the compiler
from riscv64-unknown-elf-gcc to riscv32-unknown-elf-gcc.
The riscv-collab riscv64-elf toolchain has no rv32 multilib and
will fail to link soft-float and integer helpers (__clzsi2, __muldf3,
etc.) when building for -march=rv32imc_zicsr -mabi=ilp32. The
dedicated riscv32-unknown-elf-gcc (riscv-collab riscv32-elf release,
installed to /opt/riscv by scripts/install_riscv.sh) ships the correct
native rv32/ilp32 libgcc — analogous to arm-none-eabi-gcc for Cortex-M.
The old filename is kept as a two-line compatibility alias that includes
the new file, so any out-of-tree users who hardcode the old path still work.
Also update:
- core_v_mcu/build.sh: reference new cmake filename
- core_v_mcu/README.md: update prerequisites table and toolchain docs
Co-authored-by: Copilot <[email protected]>
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risc-v: refactor, consolidate, and fix RV32/RV64 ports
Consolidates the RISC-V 32-bit and 64-bit GNU/Clang port sources, fixes two
pre-existing assembly bugs discovered during testing, and hardens the build
infrastructure for both the regression suite and the CORE-V MCU example.
--- Port consolidation (RV32 GNU + Clang) ---
- Delete ports/risc-v32/clang/src/ (8 .S files had no Clang-specific
directives; diverged from GNU only due to missing bug fixes). The Clang
port CMakeLists.txt now compiles from ../gnu/src/.
- Change .global -> .weak for _tx_initialize_low_level in gnu/src/ to allow
BSP-level override without a linker conflict (adopted from Clang port).
- Create ports/risc-v32/common/tx_port_riscv32_common.h with all definitions
shared between GNU and Clang ports. Reduce both tx_port.h files to thin
wrappers.
- Add a prominent comment in risc-v64/gnu/inc/tx_port.h explaining why
LONG/ULONG are intentionally 32-bit on RV64 (ThreadX ABI requirement,
mirrors win64/MSVC LLP64).
--- Shared CMake helper ---
- Add cmake/threadx_riscv_port.cmake with threadx_add_riscv_port(). All
three port CMakeLists.txt files are reduced to ~8 lines each. Include path
is relative to CMAKE_CURRENT_LIST_DIR so the helper works whether ports
are built standalone or as a subdirectory of the test framework.
--- Shared example-build drivers ---
- Create canonical driver files under ports/risc-v_common/:
inc/csr.h (uintptr_t-based; portable RV32 + RV64)
example_build/plic/ (plic.c, plic.h)
example_build/uart/ (uart_qemu_ns16550.c/h; static inline putc_nolock)
example_build/trap/ (trap_qemu.c; XLEN-portable mcause constants)
- Replace per-example copies with symlinks in all qemu_virt and cva6_ariane
example directories.
- Fix OS_IS_INTERRUPT typo (was OS_IS_INTERUPT) in shared trap_qemu.c.
- Gate print_hex() behind TX_RISCV_TRAP_DEBUG.
--- Bug fixes in RV32 assembly ---
tx_thread_schedule.S:
- Solicited-return FP path: reload t0 from the mepc stack slot before
csrw mepc, t0. After the FP restore block, t0 held the fcsr value (0 for
new threads), which caused mepc = 0 and an immediate instruction-address
fault on the first context switch.
- Same path: reload t0 from the mstatus stack slot before csrw mstatus, t0
to avoid writing the stale fcsr value into mstatus.
tx_thread_system_return.S:
- FP callee-saved registers were saved unconditionally before the mstatus.FS
check, causing an illegal instruction trap (mcause=0x2) when a thread with
FS=Off (lazy FPU, thread has never used FP) voluntarily yielded.
- Apply the same FS guard pattern used in tx_thread_context_save.S: read
mstatus first, isolate FS[1:0], and skip fsw/fsd if FS == Off.
Both bugs were pre-existing on origin/dev and are unrelated to the
consolidation changes.
--- RV64 64-bit pointer compatibility ---
- Add TX_TIMER_INTERNAL_EXTENSION, TX_THREAD_CREATE_TIMEOUT_SETUP, and
TX_THREAD_TIMEOUT_POINTER_SETUP to risc-v64/gnu/inc/tx_port.h to store the
thread timeout pointer in a VOID
* extension field rather than truncating it
into a 32-bit ULONG. Mirrors the win64 port pattern.
- Define TX_TIMER_EXTENSION_PTR_DEFINED as a portable sentinel.
- Update threadx_thread_basic_execution_test.c guard from #if defined(_WIN64)
to #if defined(_WIN64) || defined(TX_TIMER_EXTENSION_PTR_DEFINED).
- Disable -Wconversion for the RV64 test build: ULONG = unsigned int (32-bit)
is intentional for ThreadX ABI but triggers spurious warnings when sizeof()
(8 bytes on RV64) appears in arithmetic with ULONG in common/src/.
--- Regression suite cmake fixes ---
test/tx/cmake/riscv/regression/CMakeLists.txt:
- Build testcontrol_weak_defaults.c as a separate OBJECT library and include
it in every test executable via $<TARGET_OBJECTS:>. GNU ld does not extract
objects from a static archive to satisfy weak symbols, so bundling it in
test_utility was insufficient for the standalone
threadx_initialize_kernel_setup_test.
test/tx/cmake/regression/CMakeLists.txt,
test/smp/cmake/regression/CMakeLists.txt:
- Same fix applied to the Linux and SMP regression builds. The symbols
abort_all_threads_suspended_on_mutex, suspend_lowest_priority, and
abort_and_resume_byte_allocating_thread were introduced by the win64 merge
and left the standalone test unlinkable.
--- CORE-V MCU toolchain and build fixes ---
cmake/riscv64-gcc-rv32imc.cmake:
- Resolve riscv64-unknown-elf-gcc via PATH so the riscv-collab toolchain in
/opt/riscv/bin is preferred when it appears first.
ports/risc-v32/gnu/example_build/core_v_mcu/bsp/clz.c (new):
- The riscv-collab toolchain is built without rv32 multilib, so its libgcc
does not define __clzsi2 (the helper emitted for __builtin_clz() in fll.c).
Add a weak __clzsi2 fallback so the build is self-contained with any
riscv64-unknown-elf toolchain. The weak attribute yields to a
libgcc-provided strong symbol when the Ubuntu multilib package is used.
core_v_mcu/CMakeLists.txt:
- Add bsp/clz.c to sources.
- Reference CMAKE_TOOLCHAIN_FILE via message(STATUS) to suppress the false-
positive "Manually-specified variables were not used by the project" CMake
warning and to show the active toolchain at configure time.
--- Housekeeping ---
- Rename azrtos_test_* -> threadx_test_* (eliminate Azure RTOS branding).
- Add RV64 QEMU CI test script:
ports/risc-v64/gnu/example_build/qemu_virt/test/
threadx_test_tx_gnu_riscv64_qemu.py
- Normalize entry.s -> entry.S in all 4 example directories.
- .gitignore: exclude build_m7/ and .codex local artifacts.
- CI: comment out the riscv regression workflow job and remove it from the
deploy job's needs list (preserved in-place for easy re-enablement).
--- Verified ---
- 95/95 RV32 regression tests pass (QEMU virt)
- 95/95 RV64 regression tests pass (QEMU virt)
- All 5 Linux build configurations build cleanly (default_build_coverage,
disable_notify_callbacks_build, stack_checking_build,
stack_checking_rand_fill_build, trace_build)
- CORE-V MCU example_build links cleanly with /opt/riscv toolchain
Co-authored-by: Copilot [email protected]
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Windows x64 port and regression suite
This PR adds the Windows x64 (Win64) simulation port for both the standalone
and SMP variants of ThreadX, along with the full CMake build and test
infrastructure needed to run the regression suite on Windows.
New ports
Win64 standalone (ports/win64/vs_2022): self-contained Windows simulation
port using Win32 threading primitives as virtual cores. Includes CMake
integration, build/test scripts, and MSVC project files.
Win64 SMP (ports/win64_smp/vs_2022): multi-core Windows simulation port.
Supports up to 4 virtual cores backed by Windows host threads.
Scheduler and timer improvements
The initial port used coarse polling and synchronous SuspendThread/ResumeThread
pairs throughout the scheduler hot path. Several rounds of optimization reduced
the SMP regression suite runtime from ~150 s to ~78 s (-48%), with no
regressions:
- Replaced scheduler polling with an event-driven wake path; switched the
simulated timer to one-shot rearming to eliminate catch-up ticks.
- Skip SuspendThread when _tx_thread_preempt_disable != 0 (new suspension
type 3) -- the primary optimization, yielding up to 7.9x speedup on
preemption-heavy tests.
- Skip SuspendThread when a thread is spinning on the Win32 critical section
(suspension type 4), and fix a stale-TLS bug in
_tx_win32_critical_section_obtain that could stamp mutex_access on the
wrong virtual core.
- Added a 2 ms scheduler event timeout (matching the Linux SMP port) to
prevent stalls on any missed SetEvent.
- Enabled high-resolution waitable timers (SetWaitableTimerEx) for accurate
100 Hz tick cadence.
- Increased TX_WIN32_CONTENTION_PAUSE_COUNT from 64 to 256 to reduce
SwitchToThread overhead under heavy CS contention.
Build and test infrastructure
- Hardened the Windows build wrapper (scripts/build_tx.ps1): invoke Ninja
directly for Ninja build trees, fix timeout detection, add a default build
timeout, and limit fallback replay to real timeout cases.
- Added -Clean support to Windows test scripts to remove stale CTest state
before each run.
- Skip Visual Studio DevShell re-entry when the active MSVC environment
already matches the requested architecture.
- Fixed scripts/build_tx.sh (Linux) regression source generation: replaced
brittle exact-string insertion with line-based matching so the interrupt
dispatcher hook is inserted reliably for both simulator ports.
Test suite updates
- Introduced test/tx/regression/threadx_test_port.h with portable macros
(TX_TEST_POINTER_WORD, TX_TEST_STORE_POINTER) for storing pointers in test
arrays on 64-bit targets where ULONG remains 32-bit.
- Adjusted pool-capacity and pointer-storage patterns in regression tests to
use ALIGN_TYPE-sized slots, making the suite correct on 64-bit hosts.
- Restored stricter event flag, sleep, and timer expectations now that
port-level fixes make prior Windows accommodations unnecessary.
- Tightened SMP watchdog and clean-build timeout defaults.
Version metadata
Updated Win32, Win64, and Win64 SMP port version strings to 6.5.1.202602.
Co-authored-by: Copilot <[email protected]>
Co-authored-by: Codex (gpt 5.5) <[email protected]>
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arch/risc-v32 (#513)
This PR adds three functional improvements to the RISC-V 32-bit GNU port.
Lazy FPU stacking (tx_thread_context_save.S, tx_thread_context_restore.S, tx_thread_schedule.S): FP register save/restore is now skipped whenmstatus.FS is Off, reducing context switch overhead for threads that do not use floating point.
GP relaxation (cmake/riscv32_gnu.cmake, entry.s, link.lds): Enables the -mrelax compiler flag and defines __global_pointer$ in the linker script.The entry stub initializes gp at startup. gp is not saved or restored during context switches.
WFI in idle loop (tx_thread_schedule.S): The scheduler issues wfi when no thread is ready, replacing busy-waiting with a low-power sleep.
A Python/QEMU/GDB functional test runner is added under ports/risc-v32/gnu/example_build/qemu_virt/test/. It validates context switching, FPUcontext preservation, timer interrupts, and preemption. To run:
cd ports/risc-v32/gnu/example_build/qemu_virt
make check-functional-riscv32
Tested on QEMU virt machine (rv32gc).
Co-authored-by: Wei-Chen Lai [email protected]
Co-authored-by: Frédéric Desbiens [email protected]
Co-authored-by: Copilot [email protected]
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port (#534)
* Reverted RISCV-64 port
* Fixed wrong load/store instructions used
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* Add BananaPi BPI-F3 BSP support
Add RISC-V supervisor support to the rv64/gnu port and
provide a complete board support package for the BananaPi BPI-F3
(SpacemiT K1 SoC, X60 cores).
Port changes (risc-v64/gnu):
- Guard all CSR accesses with TX_RISCV_SMODE to select S-mode registers
(sstatus/sepc/sie/sret) vs M-mode (mstatus/mepc/mie/mret) in
context_save, context_restore, schedule, system_return,
interrupt_control, and stack_build.
- Add S-mode TX_INT_ENABLE/TX_DISABLE and inline TX_RESTORE macros
to tx_port.h.
- Add TX_RISCV_SMODE CMake option to CMakeLists.txt.
BananaPi BPI-F3 BSP (example_build/bananapi-f3):
- Boot flow: FSBL → OpenSBI (M-mode) → U-Boot (S-mode) → ThreadX
- S-mode trap handler with context save/restore integration
- SBI legacy ecall timer at 10 Hz (24 MHz timebase)
- PLIC driver with S-mode context, stale-IRQ drain, and callbacks
- PXA-compatible UART0 console (115200 8N1)
- Linker script at 0x200000 load address
Tested on risc-v board, BananaPi BPI-F3 hardware.
Signed-off-by: Akif Ejaz <[email protected]>
* Fixed S-mode context restore and PLIC spurious IRQ handling
- tx_thread_context_restore.S (non-nested path): set SPIE(0x20) alongside
SPP(0x100) so sret re-enables interrupts in the restored thread.
- tx_thread_context_restore.S (both S-mode paths): use FS=Dirty (0x6000)
instead of FS=Initial (0x2000) to match tx_thread_schedule.S and prevent
FP register corruption across context switches.
- plic.c (plic_irq_intr): return early when plic_claim() yields 0 (no
pending interrupt) to avoid completing a spurious IRQ ID 0, which is
undefined behavior per the PLIC spec.
Co-authored-by: Copilot <[email protected]>
---------
Signed-off-by: Akif Ejaz <[email protected]>
Co-authored-by: Frédéric Desbiens <[email protected]>
Co-authored-by: Copilot <[email protected]>
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Adds a complete ThreadX port for the OpenHW CORE-V MCU SoC, targeting the Digilent Nexys A7 FPGA board with an Ashling Opella-LD debug probe.
New files
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cmake/riscv64-gcc-rv32imc.cmake
CMake toolchain file for riscv64-unknown-elf-gcc targeting rv32imc_zicsr/ilp32.
ports/risc-v32/gnu/example_build/core_v_mcu/ -- Full BSP + demo application:
Assembly
crt0.S C runtime startup (BSS clear, GP/SP init, call main)
vectors.S 32-entry vectored interrupt table at 0x1c000800
tx_initialize_low_level.S mtvec setup (vectored mode), stack/free-mem pointers
BSP drivers (bsp/)
system_core_v_mcu.c Top-level init and ISR dispatcher (isr_table[32])
irq.c PULP APB interrupt controller (enable/disable/mask)
timer_irq.c PULP FC Timer -- 100 Hz tick from 10 MHz SOC clock
fll.c Frequency Locked Loop -- 5 MHz to 50 MHz (FPGA)
uart_driver.c UDMA UART channel 0 -- polled TX, non-blocking RX (8-bit transfer width)
gpio.c PULP apb_gpiov2 driver: set/clear/toggle/direction by pin index;
pad-mux via per-pad indexed registers at APB_SOC_CTRL + 0x400 + pad*4;
full pinmux API (gpio_setpinmux, gpio_getpinmux, gpio_pin_set_dir,
gpio_pin_read_status)
i2c_master.c Polled UDMA I2C master
adt7420.c ADT7420 temperature sensor driver
string.c Freestanding memset/memcpy shim (no newlib)
Headers (include/)
Peripheral register maps, MMIO inlines, BSP API declarations, tx_user.h
Application
demo_threadx.c Two threads: LED[0] blink at 1 Hz (IO pad 11, GPIO pin 4, MUX=2)
+ UART heartbeat with startup banner
("Eclipse ThreadX for OpenHW CORE-V MCU vX.Y.Z.BBBBB")
link.ld Linker script: .vectors@0x1c000800, .text@0x1c000880
CMakeLists.txt Build definition (references THREADX_ROOT)
build.sh One-shot CMake+Ninja build script
Tooling
install_deps.sh Automates toolchain/OpenOCD dependency setup
deploy.sh One-step GDB flashing via Ashling Opella-LD;
gdb-multiarch fallback when riscv64-unknown-elf-gdb is absent;
supports --wsl flag required by usbipd-win v5.x
openocd-nexys-Ashling-Opella-LD.cfg OpenOCD config for Opella-LD over JTAG
Tests (tests/)
test_irq.c / test_timer.c Host-compiled unit tests (2/2 pass)
mock/mmio_mock.* Software MMIO register map for host testing
Documentation
README.md Hardware overview, build, flash/debug, BSP API reference
Architecture notes
------------------
- CV32E40P uses the PULP/PULPissimo interrupt controller (not CLINT); IRQ lines
are masked via APB registers, not the mie CSR.
- mtvec must be 256-byte aligned; vectors placed at 0x1c000800 (vectored mode).
- Timer IRQ = line 10; dispatch via isr_table[mcause & 0x1f].
- Build: -march=rv32imc_zicsr -mabi=ilp32, -ffreestanding, -nodefaultlibs.
- Verified: ELF 11 KB text, sections at correct addresses, unit tests pass.
Third-party attributions
------------------------
BSP files derived from core-v-freertos (Apache-2.0):
(c) 2019-2020 ETH Zurich and University of Bologna
(c) 2020 GreenWaves Technologies
(c) 2011-2014 Wind River Systems, Inc.
(c) 2017 SiFive Inc. (crt0.S, BSD-2-Clause portions)
All original copyright notices retained; see individual file headers.
SPDX: Apache-2.0 AND MIT (crt0.S: (Apache-2.0 OR BSD-2-Clause) AND MIT).
Co-authored-by: Copilot <[email protected]>
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* Add LX8 support for > 32 interrupts
Also fix inconsistent SWPRI define in interrupt handler
* ThreadX: Fix context switch logic
- Disable interrupts prior to allocating a large exception frame;
only reenable them after deallocating the extra memory.
- Any user tasks with stacks based on TX_MINIMUM_STACK do not
have sufficient space for both a context switch frame and an ISR
frame; ill-timed interrupts were causing stack overruns.
* ThreadX: Interrupt fixes for TX_ENABLE_EXECUTION_CHANGE_NOTIFY
- Must reload register trashed by notify hook function call
- Must ensure PS.WOE is set before using call8
- Remove unused XT_USE_INT_WRAPPER define and associated changes,
which had a bug in XEA2 usage
- Fix another case where enabling the thread notify hooks for
call0 ABI corrupted a register
* ThreadX: Support for __DYNAMIC_REENT__
- ThreadX change to handle dynamic reent for both newlib and xclib
- Adapt ThreadX xclib interface code to handle dynamic reent pointers
* ThreadX: Xtensa execution profiling support
- Update upstream execution profiling for Xtensa port
* ThreadX: Update xtensa port readme
* ThreadX: Add Xtensa example to EPK
- tx_execution_profile.h now defines an Xtensa example
in addition to the existing Cortex example
* ThreadX: Add xtensa.cmake
* ThreadX: Update XSHAL_CLIB ifdefs in __getreent()
- Prevent a fall-through with no return value when neither
xclib nor newlib are used.
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Added a QEMU virt-machine BSP and CTest infrastructure to run the
ThreadX regression suite on both RISC-V 32-bit and 64-bit targets
in CI.
New components:
- BSP (entry, trap, PLIC, CLINT timer, UART, linker script) targeting
QEMU virt machine for RV32 and RV64
- CMake build system with Ninja, supporting multiple build configs
- CI scripts: install_riscv.sh (toolchain + QEMU), build_tx_riscv.sh,
test_tx_riscv.sh
- GitHub Actions workflow job for RISC-V regression gating
Port fixes:
- RV32 tx_thread_context_restore.S: set MPIE alongside MPP (0x1800 →
0x1880) so mret re-enables interrupts
- RV32/RV64 tx_port.h: add TX_REGRESSION_TEST extension macros needed
by the test harness
- RV32/RV64 example_build scripts: add compile and QEMU launch steps
Regression test portability fixes:
- Block memory tests: increase pool sizes (320 → 340) to accommodate
larger RISC-V block-header alignment
- Byte memory test: replace hardcoded offsets with BYTE_POOL_OVERHEAD
macro for portable pool-size computation
- Event flag timeout test: make counter tolerance unconditional,
removing linux-only guard
Signed-off-by: Akif Ejaz <[email protected]>
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mret instruction (#522)
* Fixed MPIE being cleared leading to have interrupts being disable when returning from machine mode
* Removed wrong register operand and replaced by immediate value
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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)
-----
* 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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Fixed SysTick initialization problem in tx_initialize_low_level.s for Cortex-M0.
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- Introduce THREADX_SMP option in root CMakeLists.txt.
- Implement conditional source and port directory selection for SMP builds.
- Add CMake support for common_smp and Cortex-A9 SMP port.
- Fix linker flags in Cortex-A9 SMP sample build script.
- Remove duplicate invalidateCaches_IS declarations in v7.h headers.
Assisted-by: Gemini (Experimental)
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Added rv64 rvv support
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* Updated version number constants
* Removed revision history from all files
* Added Eclipse ThreadX contributors' copyright header
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Added a RV32 Clang port
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Added support for the XuanTie E906 CPU.
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Fixed VFP build failure in Cortex-A tx_thread_schedule.S
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Signed-off-by: Akif Ejaz <[email protected]>
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- removed the REGBYTES, STORE/LOAD macros
Signed-off-by: Akif Ejaz <[email protected]>
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Added a RISC-V32 QEMU-virt example
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Removed dead code from riscv64/gnu port
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- Place the E906 implementation in the ports/risc-v32/gnu directory;
- Remove code unrelated to the xuantie_smartl_fpga demo;
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This update adapts the ThreadX low-level kernel routines
for RV32, including:
- startup and initialization logic
- context save/restore implementations
- interrupt control and scheduler entry
- thread stack build and system return paths
- timer interrupt handling
- made it complient as per new risc-v64/gnu
& threadx style
- added reademe for risc-v32/gnu port
These changes provide full low-level support needed to run
ThreadX on RISC-V32 targets.
Signed-off-by: Akif Ejaz <[email protected]>
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Added a RISC-V32 architecture port layer for GCC.
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This update adapts the ThreadX low-level kernel routines
for RV32, including:
- startup and initialization logic
- context save/restore implementations
- interrupt control and scheduler entry
- thread stack build and system return paths
- timer interrupt handling
- made it complient as per new risc-v64/gnu
& threadx style
- added reademe for risc-v32/gnu port
These changes provide full low-level support needed to run
ThreadX on RISC-V32 targets.
Signed-off-by: Akif Ejaz <[email protected]>
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Signed-off-by: Akif Ejaz <[email protected]>
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- add ThreadX porting codes for XuanTie E906.
- add example for XuanTie E906 running on QEMU smartl.
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Added missing ULONG64 definition for RX ports needed by USBX and NetX Duo
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Improved RV64/GNU port robustness, portability, and CSR handling
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- removed the trailing whitespaces
Signed-off-by: Akif Ejaz <[email protected]>
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Signed-off-by: Akif Ejaz <[email protected]>
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- removed tx_port.h dependency from .S files
- replaced tx_timer_interrupt.c with tx_timer_interrupt.S
- made some cleanups, formatting to better readability
- removed macros (LOAD/STORE/REGBYTES)
changed register nomenclature to use RISC-V ABI
names (ra, sp, t0, etc.)
- added readme_threadx.txt
Signed-off-by: Akif Ejaz <[email protected]>
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When TX_ENABLE_VFP_SUPPORT is defined, the build fails due to missing
IRQ_MASK and FIQ_MASK symbols in the restore logic.
This adds the local definitions (0x80 and 0x40) to tx_thread_schedule.S
to match tx_thread_interrupt_restore.S, enabling successful compilation
on GNU and AC6 Cortex-A ports.
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This commit introduces the complete example build environment for the
RISC-V32/GNU port targeting the QEMU virt machine. It includes basic BSP
components, startup code, drivers, linker script, and a minimal ThreadX
demo application.
Signed-off-by: Akif Ejaz <[email protected]>
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Fix IAR include typo.
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