# Vault 7: Projects

This publication series is about specific projects related to the Vault 7 main publication.

### Protego

# MPLAB XC16 C-Compiler

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Implementation-Defined Behavior
 2012-2013 Microchip Technology Inc. DS50002071C-page 235
A.16 SIGNALS
What is the set of signals for the signal function? (ISO 7.7.1.1)
Describe the parameters and the usage of each signal recognized by the signal
function. (ISO 7.7.1.1)
Application defined.
Describe the default handling and the handling at program startup for each signal
recognized by the signal function? (ISO 7.7.1.1)
None.
If the equivalent of signal (sig,SIG_DFL) is not executed prior to the call of a signal han-
dler, what blocking of the signal is performed? (ISO 7.7.1.1)
None.
Is the default handling reset if a SIGILL signal is received by a handler specified to the
signal function? (ISO 7.7.1.1)
No.
TABLE A-6: SIGNAL FUNCTION
Name Description
SIGABRT Abnormal termination.
SIGINT Receipt of an interactive attention signal.
SIGILL Detection of an invalid function image.
SIGFPE An erroneous arithmetic operation.
SIGSEGV An invalid access to storage.
SIGTERM A termination request sent to the program.

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