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Author SHA1 Message Date
hanzhijian 2c98902543 [mprotect][kconfig] Add safe defaults for MPU region count options 
NUM_MEM_REGIONS / NUM_CONFIGURABLE_REGIONS / NUM_EXCLUSIVE_REGIONS had no
Kconfig defaults. Enabling RT_USING_HW_STACK_GUARD without explicitly
setting them generated empty macros in rtconfig.h (e.g.
'#define NUM_CONFIGURABLE_REGIONS'), which expanded into invalid C
expressions like '(2 + )' and 'for (i = 0U; i < ; i++)', breaking
compilation for cortex-m4/m7/m33 MPU code.

Add safe defaults: NUM_MEM_REGIONS=8, NUM_CONFIGURABLE_REGIONS=0,
NUM_EXCLUSIVE_REGIONS=0. Also document the MemManage_Handler strong-symbol
conflict with CubeMX-generated stm32f4xx_it.c and how to resolve it.

Reported-by: wdfk-prog
 2026-09-07 10:31:49 +08:00
tangzz98 acc66c5479 实现MPU抽象层 (#8080) 
- 为RT-Thread设计MPU抽象层，支持ARMV7-M，ARMV8-M架构，让用户使用MPU检测栈溢出等内存问题，实现线程内存隔离
- 在components/mp目录下提供通用的API，libcpu目录下提供各处理器架构的具体实现
- 在STM32U575 NUCLEO， STM32H75 NUCLEO开发板测试通过
 2023-10-30 08:24:55 -04:00