This is an automated email from the ASF dual-hosted git repository. xiaoxiang781216 pushed a commit to branch master in repository https://gitbox.apache.org/repos/asf/nuttx.git
commit 4fc2b81aa82114bfa58282bfc90af6c88e9e2d0d Author: Marco Casaroli <[email protected]> AuthorDate: Tue Nov 3 21:45:47 2026 +0100 arch/arm/mps: Start the perf counter with ARCH_PERF_EVENTS. The MPS boards never call up_perf_init(), so the DWT cycle counter does not run and its rate stays ULONG_MAX. With ARCH_PERF_EVENTS (the default with SCHED_CRITMONITOR) all perf times are then 0. Call up_perf_init() in __start() with the processor clock (MPS_SYSTICK_CLOCK), as the other Cortex-M chips do. Assisted-by: Claude Code:claude-opus-5-5 Signed-off-by: Marco Casaroli <[email protected]> --- arch/arm/src/mps/mps_start.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/src/mps/mps_start.c b/arch/arm/src/mps/mps_start.c index ee5f5b0d460..7df3063fc27 100644 --- a/arch/arm/src/mps/mps_start.c +++ b/arch/arm/src/mps/mps_start.c @@ -187,6 +187,10 @@ void __start(void) up_enable_icache(); up_enable_dcache(); +#ifdef CONFIG_ARCH_PERF_EVENTS + up_perf_init((void *)MPS_SYSTICK_CLOCK); +#endif + /* Then start NuttX */ nx_start();
