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Diffstat (limited to 'support/signames.c')
| -rw-r--r-- | support/signames.c | 446 |
1 files changed, 446 insertions, 0 deletions
diff --git a/support/signames.c b/support/signames.c new file mode 100644 index 0000000..84864fd --- /dev/null +++ b/support/signames.c @@ -0,0 +1,446 @@ +/* signames.c -- Create an array of signal names. */ + +/* Copyright (C) 2006-2021 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + Bash is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <stdio.h> + +#include <sys/types.h> +#include <signal.h> + +#if defined (HAVE_STDLIB_H) +# include <stdlib.h> +#else +# include "ansi_stdlib.h" +#endif /* HAVE_STDLIB_H */ + +#if !defined (NSIG) +# define NSIG 64 +#endif + +/* + * Special traps: + * EXIT == 0 + * DEBUG == NSIG + * ERR == NSIG+1 + * RETURN == NSIG+2 + */ +#define LASTSIG NSIG+2 + +char *signal_names[2 * (LASTSIG)]; + +#define signal_names_size (sizeof(signal_names)/sizeof(signal_names[0])) + +/* AIX 4.3 defines SIGRTMIN and SIGRTMAX as 888 and 999 respectively. + I don't want to allocate so much unused space for the intervening signal + numbers, so we just punt if SIGRTMAX is past the bounds of the + signal_names array (handled in configure). */ +#if defined (SIGRTMAX) && defined (UNUSABLE_RT_SIGNALS) +# undef SIGRTMAX +# undef SIGRTMIN +#endif + +#if defined (SIGRTMAX) || defined (SIGRTMIN) +# define RTLEN 14 +# define RTLIM 256 +#endif + +#if defined (BUILDTOOL) +extern char *progname; +#endif + +void +initialize_signames () +{ + register int i; +#if defined (SIGRTMAX) || defined (SIGRTMIN) + int rtmin, rtmax, rtcnt; +#endif + + for (i = 1; i < signal_names_size; i++) + signal_names[i] = (char *)NULL; + + /* `signal' 0 is what we do on exit. */ + signal_names[0] = "EXIT"; + + /* Place signal names which can be aliases for more common signal + names first. This allows (for example) SIGABRT to overwrite SIGLOST. */ + + /* POSIX 1003.1b-1993 real time signals, but take care of incomplete + implementations. According to the standard, both SIGRTMIN and + SIGRTMAX must be defined, SIGRTMIN must be strictly less than + SIGRTMAX, and the difference must be at least 7; that is, there + must be at least eight distinct real time signals. */ + + /* The generated signal names are SIGRTMIN, SIGRTMIN+1, ..., + SIGRTMIN+x, SIGRTMAX-x, ..., SIGRTMAX-1, SIGRTMAX. If the number + of RT signals is odd, there is an extra SIGRTMIN+(x+1). + These names are the ones used by ksh and /usr/xpg4/bin/sh on SunOS5. */ + +#if defined (SIGRTMIN) + rtmin = SIGRTMIN; + signal_names[rtmin] = "SIGRTMIN"; +#endif + +#if defined (SIGRTMAX) + rtmax = SIGRTMAX; + signal_names[rtmax] = "SIGRTMAX"; +#endif + +#if defined (SIGRTMAX) && defined (SIGRTMIN) + if (rtmax > rtmin) + { + rtcnt = (rtmax - rtmin - 1) / 2; + /* croak if there are too many RT signals */ + if (rtcnt >= RTLIM/2) + { + rtcnt = RTLIM/2-1; +#ifdef BUILDTOOL + fprintf(stderr, "%s: error: more than %d real time signals, fix `%s'\n", + progname, RTLIM, progname); +#endif + } + + for (i = 1; i <= rtcnt; i++) + { + signal_names[rtmin+i] = (char *)malloc(RTLEN); + if (signal_names[rtmin+i]) + sprintf (signal_names[rtmin+i], "SIGRTMIN+%d", i); + signal_names[rtmax-i] = (char *)malloc(RTLEN); + if (signal_names[rtmax-i]) + sprintf (signal_names[rtmax-i], "SIGRTMAX-%d", i); + } + + if (rtcnt < RTLIM/2-1 && rtcnt != (rtmax-rtmin)/2) + { + /* Need an extra RTMIN signal */ + signal_names[rtmin+rtcnt+1] = (char *)malloc(RTLEN); + if (signal_names[rtmin+rtcnt+1]) + sprintf (signal_names[rtmin+rtcnt+1], "SIGRTMIN+%d", rtcnt+1); + } + } +#endif /* SIGRTMIN && SIGRTMAX */ + +#if defined (SIGLOST) /* resource lost (eg, record-lock lost) */ + signal_names[SIGLOST] = "SIGLOST"; +#endif + +/* AIX */ +#if defined (SIGMSG) /* HFT input data pending */ + signal_names[SIGMSG] = "SIGMSG"; +#endif + +#if defined (SIGDANGER) /* system crash imminent */ + signal_names[SIGDANGER] = "SIGDANGER"; +#endif + +#if defined (SIGMIGRATE) /* migrate process to another CPU */ + signal_names[SIGMIGRATE] = "SIGMIGRATE"; +#endif + +#if defined (SIGPRE) /* programming error */ + signal_names[SIGPRE] = "SIGPRE"; +#endif + +#if defined (SIGPHONE) /* Phone interrupt */ + signal_names[SIGPHONE] = "SIGPHONE"; +#endif + +#if defined (SIGVIRT) /* AIX virtual time alarm */ + signal_names[SIGVIRT] = "SIGVIRT"; +#endif + +#if defined (SIGTINT) /* Interrupt */ + signal_names[SIGTINT] = "SIGTINT"; +#endif + +#if defined (SIGALRM1) /* m:n condition variables */ + signal_names[SIGALRM1] = "SIGALRM1"; +#endif + +#if defined (SIGWAITING) /* m:n scheduling */ + signal_names[SIGWAITING] = "SIGWAITING"; +#endif + +#if defined (SIGGRANT) /* HFT monitor mode granted */ + signal_names[SIGGRANT] = "SIGGRANT"; +#endif + +#if defined (SIGKAP) /* keep alive poll from native keyboard */ + signal_names[SIGKAP] = "SIGKAP"; +#endif + +#if defined (SIGRETRACT) /* HFT monitor mode retracted */ + signal_names[SIGRETRACT] = "SIGRETRACT"; +#endif + +#if defined (SIGSOUND) /* HFT sound sequence has completed */ + signal_names[SIGSOUND] = "SIGSOUND"; +#endif + +#if defined (SIGSAK) /* Secure Attention Key */ + signal_names[SIGSAK] = "SIGSAK"; +#endif + +#if defined (SIGCPUFAIL) /* Predictive processor deconfiguration */ + signal_names[SIGCPUFAIL] = "SIGCPUFAIL"; +#endif + +#if defined (SIGAIO) /* Asynchronous I/O */ + signal_names[SIGAIO] = "SIGAIO"; +#endif + +#if defined (SIGLAB) /* Security label changed */ + signal_names[SIGLAB] = "SIGLAB"; +#endif + +/* SunOS5 */ +#if defined (SIGLWP) /* Solaris: special signal used by thread library */ + signal_names[SIGLWP] = "SIGLWP"; +#endif + +#if defined (SIGFREEZE) /* Solaris: special signal used by CPR */ + signal_names[SIGFREEZE] = "SIGFREEZE"; +#endif + +#if defined (SIGTHAW) /* Solaris: special signal used by CPR */ + signal_names[SIGTHAW] = "SIGTHAW"; +#endif + +#if defined (SIGCANCEL) /* Solaris: thread cancellation signal used by libthread */ + signal_names[SIGCANCEL] = "SIGCANCEL"; +#endif + +#if defined (SIGXRES) /* Solaris: resource control exceeded */ + signal_names[SIGXRES] = "SIGXRES"; +#endif + +#if defined (SIGJVM1) /* Solaris: Java Virtual Machine 1 */ + signal_names[SIGJVM1] = "SIGJVM1"; +#endif + +#if defined (SIGJVM2) /* Solaris: Java Virtual Machine 2 */ + signal_names[SIGJVM2] = "SIGJVM2"; +#endif + +#if defined (SIGDGTIMER1) + signal_names[SIGDGTIMER1] = "SIGDGTIMER1"; +#endif + +#if defined (SIGDGTIMER2) + signal_names[SIGDGTIMER2] = "SIGDGTIMER2"; +#endif + +#if defined (SIGDGTIMER3) + signal_names[SIGDGTIMER3] = "SIGDGTIMER3"; +#endif + +#if defined (SIGDGTIMER4) + signal_names[SIGDGTIMER4] = "SIGDGTIMER4"; +#endif + +#if defined (SIGDGNOTIFY) + signal_names[SIGDGNOTIFY] = "SIGDGNOTIFY"; +#endif + +/* Apollo */ +#if defined (SIGAPOLLO) + signal_names[SIGAPOLLO] = "SIGAPOLLO"; +#endif + +/* HP-UX */ +#if defined (SIGDIL) /* DIL signal (?) */ + signal_names[SIGDIL] = "SIGDIL"; +#endif + +/* System V */ +#if defined (SIGCLD) /* Like SIGCHLD. */ + signal_names[SIGCLD] = "SIGCLD"; +#endif + +#if defined (SIGPWR) /* power state indication */ + signal_names[SIGPWR] = "SIGPWR"; +#endif + +#if defined (SIGPOLL) /* Pollable event (for streams) */ + signal_names[SIGPOLL] = "SIGPOLL"; +#endif + +/* Unknown */ +#if defined (SIGWINDOW) + signal_names[SIGWINDOW] = "SIGWINDOW"; +#endif + +/* Linux */ +#if defined (SIGSTKFLT) + signal_names[SIGSTKFLT] = "SIGSTKFLT"; +#endif + +/* FreeBSD */ +#if defined (SIGTHR) /* thread interrupt */ + signal_names[SIGTHR] = "SIGTHR"; +#endif + +/* Common */ +#if defined (SIGHUP) /* hangup */ + signal_names[SIGHUP] = "SIGHUP"; +#endif + +#if defined (SIGINT) /* interrupt */ + signal_names[SIGINT] = "SIGINT"; +#endif + +#if defined (SIGQUIT) /* quit */ + signal_names[SIGQUIT] = "SIGQUIT"; +#endif + +#if defined (SIGILL) /* illegal instruction (not reset when caught) */ + signal_names[SIGILL] = "SIGILL"; +#endif + +#if defined (SIGTRAP) /* trace trap (not reset when caught) */ + signal_names[SIGTRAP] = "SIGTRAP"; +#endif + +#if defined (SIGIOT) /* IOT instruction */ + signal_names[SIGIOT] = "SIGIOT"; +#endif + +#if defined (SIGABRT) /* Cause current process to dump core. */ + signal_names[SIGABRT] = "SIGABRT"; +#endif + +#if defined (SIGEMT) /* EMT instruction */ + signal_names[SIGEMT] = "SIGEMT"; +#endif + +#if defined (SIGFPE) /* floating point exception */ + signal_names[SIGFPE] = "SIGFPE"; +#endif + +#if defined (SIGKILL) /* kill (cannot be caught or ignored) */ + signal_names[SIGKILL] = "SIGKILL"; +#endif + +#if defined (SIGBUS) /* bus error */ + signal_names[SIGBUS] = "SIGBUS"; +#endif + +#if defined (SIGSEGV) /* segmentation violation */ + signal_names[SIGSEGV] = "SIGSEGV"; +#endif + +#if defined (SIGSYS) /* bad argument to system call */ + signal_names[SIGSYS] = "SIGSYS"; +#endif + +#if defined (SIGPIPE) /* write on a pipe with no one to read it */ + signal_names[SIGPIPE] = "SIGPIPE"; +#endif + +#if defined (SIGALRM) /* alarm clock */ + signal_names[SIGALRM] = "SIGALRM"; +#endif + +#if defined (SIGTERM) /* software termination signal from kill */ + signal_names[SIGTERM] = "SIGTERM"; +#endif + +#if defined (SIGURG) /* urgent condition on IO channel */ + signal_names[SIGURG] = "SIGURG"; +#endif + +#if defined (SIGSTOP) /* sendable stop signal not from tty */ + signal_names[SIGSTOP] = "SIGSTOP"; +#endif + +#if defined (SIGTSTP) /* stop signal from tty */ + signal_names[SIGTSTP] = "SIGTSTP"; +#endif + +#if defined (SIGCONT) /* continue a stopped process */ + signal_names[SIGCONT] = "SIGCONT"; +#endif + +#if defined (SIGCHLD) /* to parent on child stop or exit */ + signal_names[SIGCHLD] = "SIGCHLD"; +#endif + +#if defined (SIGTTIN) /* to readers pgrp upon background tty read */ + signal_names[SIGTTIN] = "SIGTTIN"; +#endif + +#if defined (SIGTTOU) /* like TTIN for output if (tp->t_local<OSTOP) */ + signal_names[SIGTTOU] = "SIGTTOU"; +#endif + +#if defined (SIGIO) /* input/output possible signal */ + signal_names[SIGIO] = "SIGIO"; +#endif + +#if defined (SIGXCPU) /* exceeded CPU time limit */ + signal_names[SIGXCPU] = "SIGXCPU"; +#endif + +#if defined (SIGXFSZ) /* exceeded file size limit */ + signal_names[SIGXFSZ] = "SIGXFSZ"; +#endif + +#if defined (SIGVTALRM) /* virtual time alarm */ + signal_names[SIGVTALRM] = "SIGVTALRM"; +#endif + +#if defined (SIGPROF) /* profiling time alarm */ + signal_names[SIGPROF] = "SIGPROF"; +#endif + +#if defined (SIGWINCH) /* window changed */ + signal_names[SIGWINCH] = "SIGWINCH"; +#endif + +/* 4.4 BSD */ +#if defined (SIGINFO) && !defined (_SEQUENT_) /* information request */ + signal_names[SIGINFO] = "SIGINFO"; +#endif + +#if defined (SIGUSR1) /* user defined signal 1 */ + signal_names[SIGUSR1] = "SIGUSR1"; +#endif + +#if defined (SIGUSR2) /* user defined signal 2 */ + signal_names[SIGUSR2] = "SIGUSR2"; +#endif + +#if defined (SIGKILLTHR) /* BeOS: Kill Thread */ + signal_names[SIGKILLTHR] = "SIGKILLTHR"; +#endif + + for (i = 0; i < NSIG; i++) + if (signal_names[i] == (char *)NULL) + { + signal_names[i] = (char *)malloc (18); + if (signal_names[i]) + sprintf (signal_names[i], "SIGJUNK(%d)", i); + } + + signal_names[NSIG] = "DEBUG"; + signal_names[NSIG+1] = "ERR"; + signal_names[NSIG+2] = "RETURN"; +} |