kernel/svc: Implement svcGetThreadContext()

Now that we have all of the rearranging and proper structure sizes in
place, it's fairly trivial to implement svcGetThreadContext(). In the
64-bit case we can more or less just write out the context as is, minus
some minor value sanitizing. In the 32-bit case we'll need to clear out
the registers that wouldn't normally be accessible from a 32-bit
AArch32 exectuable (or process).
This commit is contained in:
Lioncash
2018-09-29 19:58:21 -04:00
parent dccfe193a9
commit 541c550753
3 changed files with 37 additions and 2 deletions

View File

@ -31,6 +31,7 @@ enum {
TooLarge = 119,
InvalidEnumValue = 120,
NoSuchEntry = 121,
AlreadyRegistered = 122,
InvalidState = 125,
ResourceLimitExceeded = 132,
};
@ -58,6 +59,7 @@ constexpr ResultCode ERR_INVALID_MEMORY_PERMISSIONS(ErrorModule::Kernel,
constexpr ResultCode ERR_INVALID_HANDLE(ErrorModule::Kernel, ErrCodes::InvalidHandle);
constexpr ResultCode ERR_INVALID_PROCESSOR_ID(ErrorModule::Kernel, ErrCodes::InvalidProcessorId);
constexpr ResultCode ERR_INVALID_SIZE(ErrorModule::Kernel, ErrCodes::InvalidSize);
constexpr ResultCode ERR_ALREADY_REGISTERED(ErrorModule::Kernel, ErrCodes::AlreadyRegistered);
constexpr ResultCode ERR_INVALID_STATE(ErrorModule::Kernel, ErrCodes::InvalidState);
constexpr ResultCode ERR_INVALID_THREAD_PRIORITY(ErrorModule::Kernel,
ErrCodes::InvalidThreadPriority);