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Structure Array PCD
Liming Gao edited this pageMar 21, 2019 ·1 revision
- When PCD is declared in DEC file, VOID* will be replaced by C Array.
- C Array can be basic data type array, such as UINT8[10]
- C Array can be structure array, such as TEST[20]
- C Array can be flexible array, such as TEST[]
gTestPkgTokenSpaceGuid.PcdName|{0x00}|TEST[]|0x10000000 - C Array PCD value is VOID * type. C source code uses
PcdGetPtr(PcdName)API
to get PCD value pointer, then convert it to C array, and access the element value. - If PCD is configured as Dynamic/DynamicEx PCD, C source code can use
PcdSetPtrS(PcdName, SizeOfBuffer, Buffer)API to update PCD value.
- Globle C structure or array can be initialized with the value.
- If PCD is declared as C Structure or Array, its value can be specified with C style value.For example:
gTestPkgTokenSpaceGuid.PcdName|{CODE({{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},{0, {0, 0, 0, 0, 0, 0, 0}},})}
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