Archit Gupta 83e56c38ee Disallow unprivileged critical sections with MPU wrappers v2 (#1427) ... When using MPU wrappers version 2 (configUSE_MPU_WRAPPERS_V1 == 0), portRAISE_PRIVILEGE() is a no-op because the portSVC_RAISE_PRIVILEGE handler is compiled only for MPU wrappers version 1. As a result, an unprivileged task that calls taskENTER_CRITICAL() does not actually raise its privilege, so the subsequent BASEPRI write is ignored by the hardware and the critical section silently fails to mask interrupts. This produces latent, hard-to-debug faults. configALLOW_UNPRIVILEGED_CRITICAL_SECTIONS is therefore not supported with MPU wrappers version 2. In the ARMv7-M MPU ports: - When the option is left undefined under v2, default it to 0 instead of 1 so the dangerous default configuration is safe. - When the option is explicitly set to 1 under v2, raise a compile-time #error so the unsupported configuration is rejected loudly rather than failing silently at run time. Behaviour for MPU wrappers version 1 is unchanged.		2026-06-15 15:30:25 -07:00
..
mpu_wrappers_v2_asm.c	Fix AutoReload variable name (#1166)	2024-10-31 21:33:25 +05:30
port.c	Disallow unprivileged critical sections with MPU wrappers v2 (#1427)	2026-06-15 15:30:25 -07:00
portmacro.h	Fix the context array size for MPU ports (#1230)	2025-01-25 13:34:03 +05:30