4.5 __default_signal_handler()

Defined in rt_misc.h, the __default_signal_handler() function handles a raised signal. The default action is to print an error message and exit.

This function is not part of the C library standard, but the ARM® C library supports it as an extension.

Syntax

int __default_signal_handler(int signal, int type);

Usage

The default signal handler returns a nonzero value to indicate that the caller has to arrange for the program to exit. You can replace the default signal handler by defining:

int __default_signal_handler(int signal, int type);

The interface is the same as __raise(), but this function is only called after the C signal handling mechanism has declined to process the signal.

A complete list of the defined signals is in signal.h.

Note:

The signals used by the libraries might change in future releases of ARM Compiler.
Non-ConfidentialPDF file icon PDF versionARM DUI0475M
Copyright © 2010-2016 ARM Limited or its affiliates. All rights reserved.