MISRA.STDLIB.SIGNAL

Use of the signal handling facilities of signal.h.

MISRA C 2012 Rule 21.5: The standard header file <signal.h> shall not be used

C90 [Undefined 67–69; Implementation 48–52]

C99 [Undefined 122–127; Implementation J.3.12(12)]

[Koenig 74]

Category: Required

Analysis: Decidable, Single Translation Unit

Applies to: C90, C99

Amplification

None of the facilities that are specified as being provided by <signal.h> shall be used.

Rationale

Signal handling contains implementation-defined and undefined behaviour.

MISRA-C 2004 Rule 20.8 (required): The signal handling facilities of ''<signal.h>'' shall not be used.

Use of the signal handling facilities of signal.h.

This rule is also covered by INCL.UNSAFE.

[Undefined 68, 69; Implementation 48—52; Koenig 74]

Signal handling contains implementation-defined and undefined behaviour.

MISRA-C++ 2008 Rule 18-7-1 (required): The signal handling facilities of <csignal> shall not be used.

This rule is also covered by MISRA.INCL.UNSAFE.

Rationale

Signal handling contains implementation-defined and undefined behaviour.

Example

#include <csignal>

void my_handler ( int32_t );

void f1 ( )
{
   signal ( 1, my_handler ); // Non-compliant
}