<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <!--Converted with LaTeX2HTML 96.1-c (Feb 29, 1996) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --> <HTML> <HEAD> <TITLE>10.2.4 Signals supported by Linux</TITLE> <META NAME="description" CONTENT="10.2.4 Signals supported by Linux"> <META NAME="keywords" CONTENT="lpg"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <LINK REL=STYLESHEET HREF="lpg.css"> </HEAD> <BODY LANG="EN"> <A NAME="tex2html2110" HREF="node143.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="/icons//next_motif.gif"></A> <A NAME="tex2html2108" HREF="node138.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="/icons//up_motif.gif"></A> <A NAME="tex2html2104" HREF="node141.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="/icons//previous_motif.gif"></A> <A NAME="tex2html2112" HREF="node1.html"><IMG WIDTH=65 HEIGHT=24 ALIGN=BOTTOM ALT="contents" SRC="/icons//contents_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html2111" HREF="node143.html">10.3 Terminal I/O</A> <B>Up:</B> <A NAME="tex2html2109" HREF="node138.html">10.2 Signal handling</A> <B> Previous:</B> <A NAME="tex2html2105" HREF="node141.html">10.2.3 signal under Linux</A> <BR> <P> <H2><A NAME="SECTION001124000000000000000">10.2.4 Signals supported by Linux</A></H2> <P> Linux supports nearly every signal provided by SVR4, BSD, and POSIX, with few exceptions: <UL><LI> <TT>SIGEMT</TT> is not supported; it corresponds to a hardware fault under SVR4 and BSD.<LI> <TT>SIGINFO</TT> is not supported; it is used for keyboard information requests under SVR4.<LI> <TT>SIGSYS</TT> is not supported; it refers to an invalid system call in SVR4 and BSD. If you link with <TT>libbsd</TT>, this signal is redefined to <TT>SIGUNUSED</TT>.<LI> <TT>SIGABRT</TT> and <TT>SIGIOT</TT> are identical.<LI> <TT>SIGIO</TT>, <TT>SIGPOLL</TT>, and <TT>SIGURG</TT> are identical.<LI> <TT>SIGBUS</TT> is defined as <TT>SIGUNUSED</TT>. Technically there is no ``bus error'' in the Linux environment. </UL><BR> <HR> <P><ADDRESS> <I>Converted on: <BR> Fri Mar 29 14:43:04 EST 1996</I> </ADDRESS> </BODY> </HTML>