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-rw-r--r--gcc-4.7/libiberty/strsignal.c610
1 files changed, 0 insertions, 610 deletions
diff --git a/gcc-4.7/libiberty/strsignal.c b/gcc-4.7/libiberty/strsignal.c
deleted file mode 100644
index 666b1b4f1..000000000
--- a/gcc-4.7/libiberty/strsignal.c
+++ /dev/null
@@ -1,610 +0,0 @@
-/* Extended support for using signal values.
- Written by Fred Fish. fnf@cygnus.com
- This file is in the public domain. */
-
-#include "config.h"
-#include "ansidecl.h"
-#include "libiberty.h"
-
-/* We need to declare sys_siglist, because even if the system provides
- it we can't assume that it is declared in <signal.h> (for example,
- SunOS provides sys_siglist, but it does not declare it in any
- header file). However, we can't declare sys_siglist portably,
- because on some systems it is declared with const and on some
- systems it is declared without const. If we were using autoconf,
- we could work out the right declaration. Until, then we just
- ignore any declaration in the system header files, and always
- declare it ourselves. With luck, this will always work. */
-#define sys_siglist no_such_symbol
-#define sys_nsig sys_nsig__no_such_symbol
-
-#include <stdio.h>
-#include <signal.h>
-
-/* Routines imported from standard C runtime libraries. */
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#else
-extern PTR malloc ();
-#endif
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-extern PTR memset ();
-#endif
-
-/* Undefine the macro we used to hide the definition of sys_siglist
- found in the system header files. */
-#undef sys_siglist
-#undef sys_nsig
-
-#ifndef NULL
-# define NULL (void *) 0
-#endif
-
-#ifndef MAX
-# define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
-static void init_signal_tables (void);
-
-/* Translation table for signal values.
-
- Note that this table is generally only accessed when it is used at runtime
- to initialize signal name and message tables that are indexed by signal
- value.
-
- Not all of these signals will exist on all systems. This table is the only
- thing that should have to be updated as new signal numbers are introduced.
- It's sort of ugly, but at least its portable. */
-
-struct signal_info
-{
- const int value; /* The numeric value from <signal.h> */
- const char *const name; /* The equivalent symbolic value */
-#ifndef HAVE_SYS_SIGLIST
- const char *const msg; /* Short message about this value */
-#endif
-};
-
-#ifndef HAVE_SYS_SIGLIST
-# define ENTRY(value, name, msg) {value, name, msg}
-#else
-# define ENTRY(value, name, msg) {value, name}
-#endif
-
-static const struct signal_info signal_table[] =
-{
-#if defined (SIGHUP)
- ENTRY(SIGHUP, "SIGHUP", "Hangup"),
-#endif
-#if defined (SIGINT)
- ENTRY(SIGINT, "SIGINT", "Interrupt"),
-#endif
-#if defined (SIGQUIT)
- ENTRY(SIGQUIT, "SIGQUIT", "Quit"),
-#endif
-#if defined (SIGILL)
- ENTRY(SIGILL, "SIGILL", "Illegal instruction"),
-#endif
-#if defined (SIGTRAP)
- ENTRY(SIGTRAP, "SIGTRAP", "Trace/breakpoint trap"),
-#endif
-/* Put SIGIOT before SIGABRT, so that if SIGIOT==SIGABRT then SIGABRT
- overrides SIGIOT. SIGABRT is in ANSI and POSIX.1, and SIGIOT isn't. */
-#if defined (SIGIOT)
- ENTRY(SIGIOT, "SIGIOT", "IOT trap"),
-#endif
-#if defined (SIGABRT)
- ENTRY(SIGABRT, "SIGABRT", "Aborted"),
-#endif
-#if defined (SIGEMT)
- ENTRY(SIGEMT, "SIGEMT", "Emulation trap"),
-#endif
-#if defined (SIGFPE)
- ENTRY(SIGFPE, "SIGFPE", "Arithmetic exception"),
-#endif
-#if defined (SIGKILL)
- ENTRY(SIGKILL, "SIGKILL", "Killed"),
-#endif
-#if defined (SIGBUS)
- ENTRY(SIGBUS, "SIGBUS", "Bus error"),
-#endif
-#if defined (SIGSEGV)
- ENTRY(SIGSEGV, "SIGSEGV", "Segmentation fault"),
-#endif
-#if defined (SIGSYS)
- ENTRY(SIGSYS, "SIGSYS", "Bad system call"),
-#endif
-#if defined (SIGPIPE)
- ENTRY(SIGPIPE, "SIGPIPE", "Broken pipe"),
-#endif
-#if defined (SIGALRM)
- ENTRY(SIGALRM, "SIGALRM", "Alarm clock"),
-#endif
-#if defined (SIGTERM)
- ENTRY(SIGTERM, "SIGTERM", "Terminated"),
-#endif
-#if defined (SIGUSR1)
- ENTRY(SIGUSR1, "SIGUSR1", "User defined signal 1"),
-#endif
-#if defined (SIGUSR2)
- ENTRY(SIGUSR2, "SIGUSR2", "User defined signal 2"),
-#endif
-/* Put SIGCLD before SIGCHLD, so that if SIGCLD==SIGCHLD then SIGCHLD
- overrides SIGCLD. SIGCHLD is in POXIX.1 */
-#if defined (SIGCLD)
- ENTRY(SIGCLD, "SIGCLD", "Child status changed"),
-#endif
-#if defined (SIGCHLD)
- ENTRY(SIGCHLD, "SIGCHLD", "Child status changed"),
-#endif
-#if defined (SIGPWR)
- ENTRY(SIGPWR, "SIGPWR", "Power fail/restart"),
-#endif
-#if defined (SIGWINCH)
- ENTRY(SIGWINCH, "SIGWINCH", "Window size changed"),
-#endif
-#if defined (SIGURG)
- ENTRY(SIGURG, "SIGURG", "Urgent I/O condition"),
-#endif
-#if defined (SIGIO)
- /* "I/O pending" has also been suggested, but is misleading since the
- signal only happens when the process has asked for it, not everytime
- I/O is pending. */
- ENTRY(SIGIO, "SIGIO", "I/O possible"),
-#endif
-#if defined (SIGPOLL)
- ENTRY(SIGPOLL, "SIGPOLL", "Pollable event occurred"),
-#endif
-#if defined (SIGSTOP)
- ENTRY(SIGSTOP, "SIGSTOP", "Stopped (signal)"),
-#endif
-#if defined (SIGTSTP)
- ENTRY(SIGTSTP, "SIGTSTP", "Stopped (user)"),
-#endif
-#if defined (SIGCONT)
- ENTRY(SIGCONT, "SIGCONT", "Continued"),
-#endif
-#if defined (SIGTTIN)
- ENTRY(SIGTTIN, "SIGTTIN", "Stopped (tty input)"),
-#endif
-#if defined (SIGTTOU)
- ENTRY(SIGTTOU, "SIGTTOU", "Stopped (tty output)"),
-#endif
-#if defined (SIGVTALRM)
- ENTRY(SIGVTALRM, "SIGVTALRM", "Virtual timer expired"),
-#endif
-#if defined (SIGPROF)
- ENTRY(SIGPROF, "SIGPROF", "Profiling timer expired"),
-#endif
-#if defined (SIGXCPU)
- ENTRY(SIGXCPU, "SIGXCPU", "CPU time limit exceeded"),
-#endif
-#if defined (SIGXFSZ)
- ENTRY(SIGXFSZ, "SIGXFSZ", "File size limit exceeded"),
-#endif
-#if defined (SIGWIND)
- ENTRY(SIGWIND, "SIGWIND", "SIGWIND"),
-#endif
-#if defined (SIGPHONE)
- ENTRY(SIGPHONE, "SIGPHONE", "SIGPHONE"),
-#endif
-#if defined (SIGLOST)
- ENTRY(SIGLOST, "SIGLOST", "Resource lost"),
-#endif
-#if defined (SIGWAITING)
- ENTRY(SIGWAITING, "SIGWAITING", "Process's LWPs are blocked"),
-#endif
-#if defined (SIGLWP)
- ENTRY(SIGLWP, "SIGLWP", "Signal LWP"),
-#endif
-#if defined (SIGDANGER)
- ENTRY(SIGDANGER, "SIGDANGER", "Swap space dangerously low"),
-#endif
-#if defined (SIGGRANT)
- ENTRY(SIGGRANT, "SIGGRANT", "Monitor mode granted"),
-#endif
-#if defined (SIGRETRACT)
- ENTRY(SIGRETRACT, "SIGRETRACT", "Need to relinguish monitor mode"),
-#endif
-#if defined (SIGMSG)
- ENTRY(SIGMSG, "SIGMSG", "Monitor mode data available"),
-#endif
-#if defined (SIGSOUND)
- ENTRY(SIGSOUND, "SIGSOUND", "Sound completed"),
-#endif
-#if defined (SIGSAK)
- ENTRY(SIGSAK, "SIGSAK", "Secure attention"),
-#endif
- ENTRY(0, NULL, NULL)
-};
-
-/* Translation table allocated and initialized at runtime. Indexed by the
- signal value to find the equivalent symbolic value. */
-
-static const char **signal_names;
-static int num_signal_names = 0;
-
-/* Translation table allocated and initialized at runtime, if it does not
- already exist in the host environment. Indexed by the signal value to find
- the descriptive string.
-
- We don't export it for use in other modules because even though it has the
- same name, it differs from other implementations in that it is dynamically
- initialized rather than statically initialized. */
-
-#ifndef HAVE_SYS_SIGLIST
-
-static int sys_nsig;
-static const char **sys_siglist;
-
-#else
-
-#ifdef NSIG
-static int sys_nsig = NSIG;
-#else
-#ifdef _NSIG
-static int sys_nsig = _NSIG;
-#endif
-#endif
-extern const char * const sys_siglist[];
-
-#endif
-
-
-/*
-
-NAME
-
- init_signal_tables -- initialize the name and message tables
-
-SYNOPSIS
-
- static void init_signal_tables ();
-
-DESCRIPTION
-
- Using the signal_table, which is initialized at compile time, generate
- the signal_names and the sys_siglist (if needed) tables, which are
- indexed at runtime by a specific signal value.
-
-BUGS
-
- The initialization of the tables may fail under low memory conditions,
- in which case we don't do anything particularly useful, but we don't
- bomb either. Who knows, it might succeed at a later point if we free
- some memory in the meantime. In any case, the other routines know
- how to deal with lack of a table after trying to initialize it. This
- may or may not be considered to be a bug, that we don't specifically
- warn about this particular failure mode.
-
-*/
-
-static void
-init_signal_tables (void)
-{
- const struct signal_info *eip;
- int nbytes;
-
- /* If we haven't already scanned the signal_table once to find the maximum
- signal value, then go find it now. */
-
- if (num_signal_names == 0)
- {
- for (eip = signal_table; eip -> name != NULL; eip++)
- {
- if (eip -> value >= num_signal_names)
- {
- num_signal_names = eip -> value + 1;
- }
- }
- }
-
- /* Now attempt to allocate the signal_names table, zero it out, and then
- initialize it from the statically initialized signal_table. */
-
- if (signal_names == NULL)
- {
- nbytes = num_signal_names * sizeof (char *);
- if ((signal_names = (const char **) malloc (nbytes)) != NULL)
- {
- memset (signal_names, 0, nbytes);
- for (eip = signal_table; eip -> name != NULL; eip++)
- {
- signal_names[eip -> value] = eip -> name;
- }
- }
- }
-
-#ifndef HAVE_SYS_SIGLIST
-
- /* Now attempt to allocate the sys_siglist table, zero it out, and then
- initialize it from the statically initialized signal_table. */
-
- if (sys_siglist == NULL)
- {
- nbytes = num_signal_names * sizeof (char *);
- if ((sys_siglist = (const char **) malloc (nbytes)) != NULL)
- {
- memset (sys_siglist, 0, nbytes);
- sys_nsig = num_signal_names;
- for (eip = signal_table; eip -> name != NULL; eip++)
- {
- sys_siglist[eip -> value] = eip -> msg;
- }
- }
- }
-
-#endif
-
-}
-
-
-/*
-
-@deftypefn Extension int signo_max (void)
-
-Returns the maximum signal value for which a corresponding symbolic
-name or message is available. Note that in the case where we use the
-@code{sys_siglist} supplied by the system, it is possible for there to
-be more symbolic names than messages, or vice versa. In fact, the
-manual page for @code{psignal(3b)} explicitly warns that one should
-check the size of the table (@code{NSIG}) before indexing it, since
-new signal codes may be added to the system before they are added to
-the table. Thus @code{NSIG} might be smaller than value implied by
-the largest signo value defined in @code{<signal.h>}.
-
-We return the maximum value that can be used to obtain a meaningful
-symbolic name or message.
-
-@end deftypefn
-
-*/
-
-int
-signo_max (void)
-{
- int maxsize;
-
- if (signal_names == NULL)
- {
- init_signal_tables ();
- }
- maxsize = MAX (sys_nsig, num_signal_names);
- return (maxsize - 1);
-}
-
-
-/*
-
-@deftypefn Supplemental {const char *} strsignal (int @var{signo})
-
-Maps an signal number to an signal message string, the contents of
-which are implementation defined. On systems which have the external
-variable @code{sys_siglist}, these strings will be the same as the
-ones used by @code{psignal()}.
-
-If the supplied signal number is within the valid range of indices for
-the @code{sys_siglist}, but no message is available for the particular
-signal number, then returns the string @samp{Signal @var{num}}, where
-@var{num} is the signal number.
-
-If the supplied signal number is not a valid index into
-@code{sys_siglist}, returns @code{NULL}.
-
-The returned string is only guaranteed to be valid only until the next
-call to @code{strsignal}.
-
-@end deftypefn
-
-*/
-
-#ifndef HAVE_STRSIGNAL
-
-char *
-strsignal (int signo)
-{
- char *msg;
- static char buf[32];
-
-#ifndef HAVE_SYS_SIGLIST
-
- if (signal_names == NULL)
- {
- init_signal_tables ();
- }
-
-#endif
-
- if ((signo < 0) || (signo >= sys_nsig))
- {
- /* Out of range, just return NULL */
- msg = NULL;
- }
- else if ((sys_siglist == NULL) || (sys_siglist[signo] == NULL))
- {
- /* In range, but no sys_siglist or no entry at this index. */
- sprintf (buf, "Signal %d", signo);
- msg = buf;
- }
- else
- {
- /* In range, and a valid message. Just return the message. We
- can safely cast away const, since POSIX says the user must
- not modify the result. */
- msg = (char *) sys_siglist[signo];
- }
-
- return (msg);
-}
-
-#endif /* ! HAVE_STRSIGNAL */
-
-/*
-
-@deftypefn Extension {const char*} strsigno (int @var{signo})
-
-Given an signal number, returns a pointer to a string containing the
-symbolic name of that signal number, as found in @code{<signal.h>}.
-
-If the supplied signal number is within the valid range of indices for
-symbolic names, but no name is available for the particular signal
-number, then returns the string @samp{Signal @var{num}}, where
-@var{num} is the signal number.
-
-If the supplied signal number is not within the range of valid
-indices, then returns @code{NULL}.
-
-The contents of the location pointed to are only guaranteed to be
-valid until the next call to @code{strsigno}.
-
-@end deftypefn
-
-*/
-
-const char *
-strsigno (int signo)
-{
- const char *name;
- static char buf[32];
-
- if (signal_names == NULL)
- {
- init_signal_tables ();
- }
-
- if ((signo < 0) || (signo >= num_signal_names))
- {
- /* Out of range, just return NULL */
- name = NULL;
- }
- else if ((signal_names == NULL) || (signal_names[signo] == NULL))
- {
- /* In range, but no signal_names or no entry at this index. */
- sprintf (buf, "Signal %d", signo);
- name = (const char *) buf;
- }
- else
- {
- /* In range, and a valid name. Just return the name. */
- name = signal_names[signo];
- }
-
- return (name);
-}
-
-
-/*
-
-@deftypefn Extension int strtosigno (const char *@var{name})
-
-Given the symbolic name of a signal, map it to a signal number. If no
-translation is found, returns 0.
-
-@end deftypefn
-
-*/
-
-int
-strtosigno (const char *name)
-{
- int signo = 0;
-
- if (name != NULL)
- {
- if (signal_names == NULL)
- {
- init_signal_tables ();
- }
- for (signo = 0; signo < num_signal_names; signo++)
- {
- if ((signal_names[signo] != NULL) &&
- (strcmp (name, signal_names[signo]) == 0))
- {
- break;
- }
- }
- if (signo == num_signal_names)
- {
- signo = 0;
- }
- }
- return (signo);
-}
-
-
-/*
-
-@deftypefn Supplemental void psignal (int @var{signo}, char *@var{message})
-
-Print @var{message} to the standard error, followed by a colon,
-followed by the description of the signal specified by @var{signo},
-followed by a newline.
-
-@end deftypefn
-
-*/
-
-#ifndef HAVE_PSIGNAL
-
-void
-psignal (int signo, char *message)
-{
- if (signal_names == NULL)
- {
- init_signal_tables ();
- }
- if ((signo <= 0) || (signo >= sys_nsig))
- {
- fprintf (stderr, "%s: unknown signal\n", message);
- }
- else
- {
- fprintf (stderr, "%s: %s\n", message, sys_siglist[signo]);
- }
-}
-
-#endif /* ! HAVE_PSIGNAL */
-
-
-/* A simple little main that does nothing but print all the signal translations
- if MAIN is defined and this file is compiled and linked. */
-
-#ifdef MAIN
-
-#include <stdio.h>
-
-int
-main (void)
-{
- int signo;
- int maxsigno;
- const char *name;
- const char *msg;
-
- maxsigno = signo_max ();
- printf ("%d entries in names table.\n", num_signal_names);
- printf ("%d entries in messages table.\n", sys_nsig);
- printf ("%d is max useful index.\n", maxsigno);
-
- /* Keep printing values until we get to the end of *both* tables, not
- *either* table. Note that knowing the maximum useful index does *not*
- relieve us of the responsibility of testing the return pointer for
- NULL. */
-
- for (signo = 0; signo <= maxsigno; signo++)
- {
- name = strsigno (signo);
- name = (name == NULL) ? "<NULL>" : name;
- msg = strsignal (signo);
- msg = (msg == NULL) ? "<NULL>" : msg;
- printf ("%-4d%-18s%s\n", signo, name, msg);
- }
-
- return 0;
-}
-
-#endif