How do you define a block of executable memory in

问题:

I know that Linux supports the mmap system command for being able to define a block of executable memory. How do you do the same thing in windows? I imagine there is some windows equivalent function that does the same thing, maybe?

回答1:

Call CreateFileMapping or VirtualProtect or VirtualAlloc passing one of the PAGE_EXECUTE_XXX protection flags. The mmap function is used for file mappings and so CreateFileMapping is the closest Windows analogue.

回答2:

Google, one of the first hits. - use the VirtualAlloc function with the protection flag being one of PAGE_EXECUTE, PAGE_EXECUTE_READ, PAGE_EXECUTE_READWRITE, or PAGE_EXECUTE_WRITECOPY.

Alternatively, use VirtualProtect() to change the protection of an already existing memory region.