Section: Linux Programmer's Manual (3)
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psignal, psiginfo - print signal message
void psignal(int sig, const char *s);
void psiginfo(const siginfo_t *pinfo, const char *s);
extern const char *const sys_siglist;
Feature Test Macro Requirements for glibc (see
_SVID_SOURCE || _BSD_SOURCE
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
function displays a message on stderr
consisting of the string s, a colon, a space, a string
describing the signal number sig, and a trailing newline.
If the string s is NULL or empty, the colon and space are omitted.
If sig is invalid,
the message displayed will indicate an unknown signal.
function is like
except that it displays information about the signal described by
which should point to a valid
As well as the signal description,
displays information about the origin of the signal,
and other information relevant to the signal
(e.g., the relevant memory address for hardware-generated signals,
the child process ID for
and the user ID and process ID of the sender, for signals set using
The array sys_siglist holds the signal description strings
indexed by signal number.
functions return no value.
function was added to glibc in version 2.10.
In glibc versions up to 2.12,
had the following bugs:
In some circumstances, a trailing newline is not printed.
Additional details are not displayed for real-time signals.
This page is part of release 3.54 of the Linux
A description of the project,
and information about reporting bugs,
can be found at
- RETURN VALUE
- CONFORMING TO
- SEE ALSO
This document was created by
using the manual pages.
Time: 12:03:30 GMT, January 22, 2018