Condition-handling responses

Table 1 and Table 2 list condition-handling responses, as referenced in the condition handling sections of the pairwise chapters.

Table 1. Language Environmentdefault responses to unhandled conditions. Language Environment's default responses to unhandled conditions fall into one of two types, depending on whether the condition was signaled using CEESGL and an fc parameter, or it came from any other source.
Severity of condition	Condition signaled by user in a call to CEESGL with an fc	Condition came from any other source
0 (Informative message)	Return CEE069 condition token, and resume processing at the next sequential instruction. See the fc table for CEESGL (z/OS Language Environment Programming Reference) for a description of the CEE069 condition token.	Resume without issuing message.
1 (Warning message)	Return CEE069 condition token, and resume processing at the next sequential instruction.	If the condition occurred in a stack frame associated with a COBOL program, resume and issue the message. If the condition occurred in a stack frame associated with a non-COBOL program, resume without issuing message.
2 (Program terminated in error)	Return CEE069 condition token, and resume processing at the next sequential instruction.	Promote condition to T_I_U, redrive the stack, then terminate the thread if the condition remains unhandled. Message issued if TERMTHDACT(MSG) is specified.
3 (Program terminated in severe error)	Return CEE069 condition token, and resume processing at the next sequential instruction.	Promote condition to T_I_U, redrive the stack, then terminate the thread if the condition remains unhandled. Message issued if TERMTHDACT(MSG) is specified.
4 (Program terminated in critical error)	Promote condition to T_I_U, redrive the stack, then terminate the thread if the condition remains unhandled. Message issued if TERMTHDACT(MSG) is specified.	Promote condition to T_I_U, redrive the stack, then terminate the thread if the condition remains unhandled. Message issued if TERMTHDACT(MSG) is specified.

Table 2 contains default C language error handling semantics.

Table 2. Cconditions and default system actions
C Condition	Origin	Default action
SIGILL	Execute exception operation exception privileged operation `raise(SIGILL)`	Abnormal termination (return code=3000)
SIGSEGV	Addressing exception protection exception specification exception `raise(SIGSEGV)`	Abnormal termination (return code=3000)
SIGFPE	Data exception decimal divide exponent overflow fixed point divide floating point divide `raise(SIGFPE)`	Abnormal termination (return code=3000)
SIGABRT	`abort()` function `raise(SIGABRT)`	Abnormal termination (return code=2000)
SIGABND	Abend the function	Abnormal termination (return code=3000)
SIGTERM	Termination request `raise(SIGTERM)`	Abnormal termination (return code = 3000)
SIGINT	Attention condition	Abnormal termination (return code = 3000)
SIGIOERR	I/O errors	Ignore the condition
SIGUSR1	User-defined condition	Abnormal termination (return code=3000)
SIGUSR2	User-defined condition	Abnormal termination (return code=3000)
Masked	Exponent overflow fixed-point underflow significance	These exceptions are disabled. They are ignored during the condition handling process, even if you try to enable them using the CEE3SPM callable service.