harmony 鸿蒙Porting

2022-08-09
浏览 (603)

Porting

How Do I Mount the Heap Memory to the Kernel?

The following table describes the macros for configuring the kernel heap memory. You can configure them as required in the target_config.h file.

Table 1 Macros for configuring the kernel heap memory

|Macro|Description| |——–|——–| |LOSCFG_SYS_EXTERNAL_HEAP|Specifies whether the internal kernel heap memory or the user heap memory will be used. The default value is 0 and indicates that the internal heap memory whose size is 0x10000 will be used. If you want to use the external heap memory, set this macro to 1.| |LOSCFG_SYS_HEAP_ADDR|Specifies the start address of the kernel heap memory.| |LOSCFG_SYS_HEAP_SIZE|Specifies the size of the kernel heap memory, that is, size of the memory block specified by LOSCFG_SYS_HEAP_ADDR.|

Note:

Ensure that the specified heap memory range is not used by other modules. Otherwise, functions of the heap memory will be damaged due to the heap memory corruption.