Module semihosting

ARM semihosting support.

Specification: https://github.com/ARM-software/abi-aa/blob/2024Q3/semihosting/semihosting.rst

Structs

• Buffer
  When using some semihosting commands, the target usually allocates a buffer for the host to read/write to. The targets just gives us an address pointing to two u32 values, the address of the buffer and the length of the buffer.
• CloseRequest
  A request to open a file on the host.
• ExitErrorDetails
  Details of a semihosting exit with error
• GetCommandLineRequest
  A request to read the command line arguments from the target
• OpenRequest
  A request to open a file on the host.
• UnknownCommandDetails
  Details of a semihosting operation that we don’t support yet
• WriteConsoleRequest
  A request to write to the console
• WriteRequest
  A request to write to the console

Enums

• SemihostingCommand
  Indicates the operation the target would like the debugger to perform.

Functions

• decode_semihosting_syscall
  Decodes a semihosting syscall without running the requested action. Only supports SYS_EXIT, SYS_EXIT_EXTENDED and SYS_GET_CMDLINE at the moment