CEE3CSYS — creating nested enclave

This CWI passes control to a target program. Control is passed in such a way that, if the target is a Language Environment-enabled application, the first call (if any) to CEEINT from the target program or its descendents results in the creation of a new nested enclave. CEE3CSYS can be called only from an already executing Language Environment environment. The execution of the caller of CEE3CSYS is suspended until the newly created enclave or non-Language Environment service, command, or EXEC completes its execution and returns.

VSTRING   *name;
void      *user_arg;
void      *rsvd_word;
void      *rsvd_word;
INT4      *rtn_cd;
FEED_BACK *fc;

CEECELVBCSYS

Call this CWI interface as follows:

L     R15,CEECAACELV-CEECAA(,R12)
L     R15,2988(,R15)
BALR  R14,R15

name (input)

a halfword-prefixed character string containing the name of the entry point in the target load module that is to receive control. The character string must be the platform-specific name identifying the entry point. The name is used as specified with no mapping by CEE3CSYS. The search order for the load module is consistent with that used for SVC LINK.

user_arg (input)

the equivalent of an R1 value. This can pass a single argument in the form of a halfword-prefixed character string that can contain user parameters and optionally runtime options.

rsvd_word (input)

A fullword reserved for future use.

rsvd_word (input)

A fullword reserved for future use.

rtn_cd (output)

A full word integer with the return code from the target enclave. This is valid only when fc is CEE000.

fc (output/optional)

The feedback code from the service indicates how the service performed, and not the target enclave. The following feedback codes are possible:

Condition
CEE000	Severity	0
	Msg_No	0000
	Message	The service completed successfully.
CEE3DC	Severity	3
	Msg_No	3500
	Message	Not enough storage available to load name.
CEE3DD	Severity	3
	Msg_No	3501
	Message	name module not found.
CEE3DE	Severity	3
	Msg_No	3502
	Message	name module name too long.
CEE3DF	Severity	3
	Msg_No	3503
	Message	Load service request for module name was unsuccessful.