Function sunrise_libuser::syscalls::map_process_memory

pub fn map_process_memory(
    dstaddr: usize, 
    proc_handle: &Process, 
    srcaddr: usize, 
    size: usize
) -> Result<(), KernelError>

Maps the given src memory range from a remote process into the current process as RW-. This is used by the Loader to load binaries into the memory region allocated by the kernel in create_process.

The src region should have the MAP_PROCESS state, which is only available on CodeStatic/CodeMutable and ModuleCodeStatic/ModuleCodeMutable.

Errors

• InvalidAddress
  • src_addr or dst_addr is not aligned to 0x1000.
• InvalidSize
  • size is 0
  • size is not aligned to 0x1000.
• InvalidMemState
  • src_addr + size overflows
  • dst_addr + size overflows
  • The src region is outside of the UserLand address space.
  • The dst region is outside of the UserLand address space, or within the heap or map memory region.
  • The src memory pages does not have the MAP_PROCESS state.
  • The dst memory pages is not of the Unmapped type.
• InvalidHandle
  • The handle passed as an argument does not exist or is not a Process handle.