+++ /dev/null
-/* Target signal translation functions for GDB.
- Copyright (C) 1990-2019 Free Software Foundation, Inc.
- Contributed by Cygnus Support.
-
- This file is part of GDB.
-
- This program 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.
-
- This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#include "common-defs.h"
-
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
-
-#include "gdb_signals.h"
-
-struct gdbarch;
-
-/* Always use __SIGRTMIN if it's available. SIGRTMIN is the lowest
- _available_ realtime signal, not the lowest supported; glibc takes
- several for its own use. */
-
-#ifndef REALTIME_LO
-# if defined(__SIGRTMIN)
-# define REALTIME_LO __SIGRTMIN
-# define REALTIME_HI (__SIGRTMAX + 1)
-# elif defined(SIGRTMIN)
-# define REALTIME_LO SIGRTMIN
-# define REALTIME_HI (SIGRTMAX + 1)
-# endif
-#endif
-
-/* This table must match in order and size the signals in enum
- gdb_signal. */
-
-static const struct {
- const char *symbol;
- const char *name;
- const char *string;
- } signals [] =
-{
-#define SET(symbol, constant, name, string) { #symbol, name, string },
-#include "gdb/signals.def"
-#undef SET
-};
-
-const char *
-gdb_signal_to_symbol_string (enum gdb_signal sig)
-{
- gdb_assert ((int) sig >= GDB_SIGNAL_FIRST && (int) sig <= GDB_SIGNAL_LAST);
-
- return signals[sig].symbol;
-}
-
-/* Return the string for a signal. */
-const char *
-gdb_signal_to_string (enum gdb_signal sig)
-{
- if ((int) sig >= GDB_SIGNAL_FIRST && (int) sig <= GDB_SIGNAL_LAST)
- return signals[sig].string;
- else
- return signals[GDB_SIGNAL_UNKNOWN].string;
-}
-
-/* Return the name for a signal. */
-const char *
-gdb_signal_to_name (enum gdb_signal sig)
-{
- if ((int) sig >= GDB_SIGNAL_FIRST && (int) sig <= GDB_SIGNAL_LAST
- && signals[sig].name != NULL)
- return signals[sig].name;
- else
- /* I think the code which prints this will always print it along
- with the string, so no need to be verbose (very old comment). */
- return "?";
-}
-
-/* Given a name, return its signal. */
-enum gdb_signal
-gdb_signal_from_name (const char *name)
-{
- enum gdb_signal sig;
-
- /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
- for GDB_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more
- questionable; seems like by now people should call it SIGABRT
- instead. */
-
- /* This ugly cast brought to you by the native VAX compiler. */
- for (sig = GDB_SIGNAL_HUP;
- sig < GDB_SIGNAL_LAST;
- sig = (enum gdb_signal) ((int) sig + 1))
- if (signals[sig].name != NULL
- && strcmp (name, signals[sig].name) == 0)
- return sig;
- return GDB_SIGNAL_UNKNOWN;
-}
-\f
-/* The following functions are to help certain targets deal
- with the signal/waitstatus stuff. They could just as well be in
- a file called native-utils.c or unixwaitstatus-utils.c or whatever. */
-
-/* Convert host signal to our signals. */
-enum gdb_signal
-gdb_signal_from_host (int hostsig)
-{
- /* A switch statement would make sense but would require special
- kludges to deal with the cases where more than one signal has the
- same number. Signals are ordered ANSI-standard signals first,
- other signals second, with signals in each block ordered by their
- numerical values on a typical POSIX platform. */
-
- if (hostsig == 0)
- return GDB_SIGNAL_0;
-
- /* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
- are ANSI-standard signals and are always available. */
- if (hostsig == SIGINT)
- return GDB_SIGNAL_INT;
- if (hostsig == SIGILL)
- return GDB_SIGNAL_ILL;
- if (hostsig == SIGABRT)
- return GDB_SIGNAL_ABRT;
- if (hostsig == SIGFPE)
- return GDB_SIGNAL_FPE;
- if (hostsig == SIGSEGV)
- return GDB_SIGNAL_SEGV;
- if (hostsig == SIGTERM)
- return GDB_SIGNAL_TERM;
-
- /* All other signals need preprocessor conditionals. */
-#if defined (SIGHUP)
- if (hostsig == SIGHUP)
- return GDB_SIGNAL_HUP;
-#endif
-#if defined (SIGQUIT)
- if (hostsig == SIGQUIT)
- return GDB_SIGNAL_QUIT;
-#endif
-#if defined (SIGTRAP)
- if (hostsig == SIGTRAP)
- return GDB_SIGNAL_TRAP;
-#endif
-#if defined (SIGEMT)
- if (hostsig == SIGEMT)
- return GDB_SIGNAL_EMT;
-#endif
-#if defined (SIGKILL)
- if (hostsig == SIGKILL)
- return GDB_SIGNAL_KILL;
-#endif
-#if defined (SIGBUS)
- if (hostsig == SIGBUS)
- return GDB_SIGNAL_BUS;
-#endif
-#if defined (SIGSYS)
- if (hostsig == SIGSYS)
- return GDB_SIGNAL_SYS;
-#endif
-#if defined (SIGPIPE)
- if (hostsig == SIGPIPE)
- return GDB_SIGNAL_PIPE;
-#endif
-#if defined (SIGALRM)
- if (hostsig == SIGALRM)
- return GDB_SIGNAL_ALRM;
-#endif
-#if defined (SIGUSR1)
- if (hostsig == SIGUSR1)
- return GDB_SIGNAL_USR1;
-#endif
-#if defined (SIGUSR2)
- if (hostsig == SIGUSR2)
- return GDB_SIGNAL_USR2;
-#endif
-#if defined (SIGCLD)
- if (hostsig == SIGCLD)
- return GDB_SIGNAL_CHLD;
-#endif
-#if defined (SIGCHLD)
- if (hostsig == SIGCHLD)
- return GDB_SIGNAL_CHLD;
-#endif
-#if defined (SIGPWR)
- if (hostsig == SIGPWR)
- return GDB_SIGNAL_PWR;
-#endif
-#if defined (SIGWINCH)
- if (hostsig == SIGWINCH)
- return GDB_SIGNAL_WINCH;
-#endif
-#if defined (SIGURG)
- if (hostsig == SIGURG)
- return GDB_SIGNAL_URG;
-#endif
-#if defined (SIGIO)
- if (hostsig == SIGIO)
- return GDB_SIGNAL_IO;
-#endif
-#if defined (SIGPOLL)
- if (hostsig == SIGPOLL)
- return GDB_SIGNAL_POLL;
-#endif
-#if defined (SIGSTOP)
- if (hostsig == SIGSTOP)
- return GDB_SIGNAL_STOP;
-#endif
-#if defined (SIGTSTP)
- if (hostsig == SIGTSTP)
- return GDB_SIGNAL_TSTP;
-#endif
-#if defined (SIGCONT)
- if (hostsig == SIGCONT)
- return GDB_SIGNAL_CONT;
-#endif
-#if defined (SIGTTIN)
- if (hostsig == SIGTTIN)
- return GDB_SIGNAL_TTIN;
-#endif
-#if defined (SIGTTOU)
- if (hostsig == SIGTTOU)
- return GDB_SIGNAL_TTOU;
-#endif
-#if defined (SIGVTALRM)
- if (hostsig == SIGVTALRM)
- return GDB_SIGNAL_VTALRM;
-#endif
-#if defined (SIGPROF)
- if (hostsig == SIGPROF)
- return GDB_SIGNAL_PROF;
-#endif
-#if defined (SIGXCPU)
- if (hostsig == SIGXCPU)
- return GDB_SIGNAL_XCPU;
-#endif
-#if defined (SIGXFSZ)
- if (hostsig == SIGXFSZ)
- return GDB_SIGNAL_XFSZ;
-#endif
-#if defined (SIGWIND)
- if (hostsig == SIGWIND)
- return GDB_SIGNAL_WIND;
-#endif
-#if defined (SIGPHONE)
- if (hostsig == SIGPHONE)
- return GDB_SIGNAL_PHONE;
-#endif
-#if defined (SIGLOST)
- if (hostsig == SIGLOST)
- return GDB_SIGNAL_LOST;
-#endif
-#if defined (SIGWAITING)
- if (hostsig == SIGWAITING)
- return GDB_SIGNAL_WAITING;
-#endif
-#if defined (SIGCANCEL)
- if (hostsig == SIGCANCEL)
- return GDB_SIGNAL_CANCEL;
-#endif
-#if defined (SIGLWP)
- if (hostsig == SIGLWP)
- return GDB_SIGNAL_LWP;
-#endif
-#if defined (SIGDANGER)
- if (hostsig == SIGDANGER)
- return GDB_SIGNAL_DANGER;
-#endif
-#if defined (SIGGRANT)
- if (hostsig == SIGGRANT)
- return GDB_SIGNAL_GRANT;
-#endif
-#if defined (SIGRETRACT)
- if (hostsig == SIGRETRACT)
- return GDB_SIGNAL_RETRACT;
-#endif
-#if defined (SIGMSG)
- if (hostsig == SIGMSG)
- return GDB_SIGNAL_MSG;
-#endif
-#if defined (SIGSOUND)
- if (hostsig == SIGSOUND)
- return GDB_SIGNAL_SOUND;
-#endif
-#if defined (SIGSAK)
- if (hostsig == SIGSAK)
- return GDB_SIGNAL_SAK;
-#endif
-#if defined (SIGPRIO)
- if (hostsig == SIGPRIO)
- return GDB_SIGNAL_PRIO;
-#endif
-
- /* Mach exceptions. Assumes that the values for EXC_ are positive! */
-#if defined (EXC_BAD_ACCESS) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_BAD_ACCESS)
- return GDB_EXC_BAD_ACCESS;
-#endif
-#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_BAD_INSTRUCTION)
- return GDB_EXC_BAD_INSTRUCTION;
-#endif
-#if defined (EXC_ARITHMETIC) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_ARITHMETIC)
- return GDB_EXC_ARITHMETIC;
-#endif
-#if defined (EXC_EMULATION) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_EMULATION)
- return GDB_EXC_EMULATION;
-#endif
-#if defined (EXC_SOFTWARE) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_SOFTWARE)
- return GDB_EXC_SOFTWARE;
-#endif
-#if defined (EXC_BREAKPOINT) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_BREAKPOINT)
- return GDB_EXC_BREAKPOINT;
-#endif
-
-#if defined (SIGINFO)
- if (hostsig == SIGINFO)
- return GDB_SIGNAL_INFO;
-#endif
-#if defined (SIGLIBRT)
- if (hostsig == SIGLIBRT)
- return GDB_SIGNAL_LIBRT;
-#endif
-
-#if defined (REALTIME_LO)
- if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
- {
- /* This block of GDB_SIGNAL_REALTIME value is in order. */
- if (33 <= hostsig && hostsig <= 63)
- return (enum gdb_signal)
- (hostsig - 33 + (int) GDB_SIGNAL_REALTIME_33);
- else if (hostsig == 32)
- return GDB_SIGNAL_REALTIME_32;
- else if (64 <= hostsig && hostsig <= 127)
- return (enum gdb_signal)
- (hostsig - 64 + (int) GDB_SIGNAL_REALTIME_64);
- else
- error (_("GDB bug: target.c (gdb_signal_from_host): "
- "unrecognized real-time signal"));
- }
-#endif
-
- return GDB_SIGNAL_UNKNOWN;
-}
-
-/* Convert a OURSIG (an enum gdb_signal) to the form used by the
- target operating system (refered to as the ``host'') or zero if the
- equivalent host signal is not available. Set/clear OURSIG_OK
- accordingly. */
-
-static int
-do_gdb_signal_to_host (enum gdb_signal oursig,
- int *oursig_ok)
-{
- int retsig;
- /* Silence the 'not used' warning, for targets that
- do not support signals. */
- (void) retsig;
-
- /* Signals are ordered ANSI-standard signals first, other signals
- second, with signals in each block ordered by their numerical
- values on a typical POSIX platform. */
-
- *oursig_ok = 1;
- switch (oursig)
- {
- case GDB_SIGNAL_0:
- return 0;
-
- /* SIGINT, SIGILL, SIGABRT, SIGFPE, SIGSEGV and SIGTERM
- are ANSI-standard signals and are always available. */
- case GDB_SIGNAL_INT:
- return SIGINT;
- case GDB_SIGNAL_ILL:
- return SIGILL;
- case GDB_SIGNAL_ABRT:
- return SIGABRT;
- case GDB_SIGNAL_FPE:
- return SIGFPE;
- case GDB_SIGNAL_SEGV:
- return SIGSEGV;
- case GDB_SIGNAL_TERM:
- return SIGTERM;
-
- /* All other signals need preprocessor conditionals. */
-#if defined (SIGHUP)
- case GDB_SIGNAL_HUP:
- return SIGHUP;
-#endif
-#if defined (SIGQUIT)
- case GDB_SIGNAL_QUIT:
- return SIGQUIT;
-#endif
-#if defined (SIGTRAP)
- case GDB_SIGNAL_TRAP:
- return SIGTRAP;
-#endif
-#if defined (SIGEMT)
- case GDB_SIGNAL_EMT:
- return SIGEMT;
-#endif
-#if defined (SIGKILL)
- case GDB_SIGNAL_KILL:
- return SIGKILL;
-#endif
-#if defined (SIGBUS)
- case GDB_SIGNAL_BUS:
- return SIGBUS;
-#endif
-#if defined (SIGSYS)
- case GDB_SIGNAL_SYS:
- return SIGSYS;
-#endif
-#if defined (SIGPIPE)
- case GDB_SIGNAL_PIPE:
- return SIGPIPE;
-#endif
-#if defined (SIGALRM)
- case GDB_SIGNAL_ALRM:
- return SIGALRM;
-#endif
-#if defined (SIGUSR1)
- case GDB_SIGNAL_USR1:
- return SIGUSR1;
-#endif
-#if defined (SIGUSR2)
- case GDB_SIGNAL_USR2:
- return SIGUSR2;
-#endif
-#if defined (SIGCHLD) || defined (SIGCLD)
- case GDB_SIGNAL_CHLD:
-#if defined (SIGCHLD)
- return SIGCHLD;
-#else
- return SIGCLD;
-#endif
-#endif /* SIGCLD or SIGCHLD */
-#if defined (SIGPWR)
- case GDB_SIGNAL_PWR:
- return SIGPWR;
-#endif
-#if defined (SIGWINCH)
- case GDB_SIGNAL_WINCH:
- return SIGWINCH;
-#endif
-#if defined (SIGURG)
- case GDB_SIGNAL_URG:
- return SIGURG;
-#endif
-#if defined (SIGIO)
- case GDB_SIGNAL_IO:
- return SIGIO;
-#endif
-#if defined (SIGPOLL)
- case GDB_SIGNAL_POLL:
- return SIGPOLL;
-#endif
-#if defined (SIGSTOP)
- case GDB_SIGNAL_STOP:
- return SIGSTOP;
-#endif
-#if defined (SIGTSTP)
- case GDB_SIGNAL_TSTP:
- return SIGTSTP;
-#endif
-#if defined (SIGCONT)
- case GDB_SIGNAL_CONT:
- return SIGCONT;
-#endif
-#if defined (SIGTTIN)
- case GDB_SIGNAL_TTIN:
- return SIGTTIN;
-#endif
-#if defined (SIGTTOU)
- case GDB_SIGNAL_TTOU:
- return SIGTTOU;
-#endif
-#if defined (SIGVTALRM)
- case GDB_SIGNAL_VTALRM:
- return SIGVTALRM;
-#endif
-#if defined (SIGPROF)
- case GDB_SIGNAL_PROF:
- return SIGPROF;
-#endif
-#if defined (SIGXCPU)
- case GDB_SIGNAL_XCPU:
- return SIGXCPU;
-#endif
-#if defined (SIGXFSZ)
- case GDB_SIGNAL_XFSZ:
- return SIGXFSZ;
-#endif
-#if defined (SIGWIND)
- case GDB_SIGNAL_WIND:
- return SIGWIND;
-#endif
-#if defined (SIGPHONE)
- case GDB_SIGNAL_PHONE:
- return SIGPHONE;
-#endif
-#if defined (SIGLOST)
- case GDB_SIGNAL_LOST:
- return SIGLOST;
-#endif
-#if defined (SIGWAITING)
- case GDB_SIGNAL_WAITING:
- return SIGWAITING;
-#endif
-#if defined (SIGCANCEL)
- case GDB_SIGNAL_CANCEL:
- return SIGCANCEL;
-#endif
-#if defined (SIGLWP)
- case GDB_SIGNAL_LWP:
- return SIGLWP;
-#endif
-#if defined (SIGDANGER)
- case GDB_SIGNAL_DANGER:
- return SIGDANGER;
-#endif
-#if defined (SIGGRANT)
- case GDB_SIGNAL_GRANT:
- return SIGGRANT;
-#endif
-#if defined (SIGRETRACT)
- case GDB_SIGNAL_RETRACT:
- return SIGRETRACT;
-#endif
-#if defined (SIGMSG)
- case GDB_SIGNAL_MSG:
- return SIGMSG;
-#endif
-#if defined (SIGSOUND)
- case GDB_SIGNAL_SOUND:
- return SIGSOUND;
-#endif
-#if defined (SIGSAK)
- case GDB_SIGNAL_SAK:
- return SIGSAK;
-#endif
-#if defined (SIGPRIO)
- case GDB_SIGNAL_PRIO:
- return SIGPRIO;
-#endif
-
- /* Mach exceptions. Assumes that the values for EXC_ are positive! */
-#if defined (EXC_BAD_ACCESS) && defined (_NSIG)
- case GDB_EXC_BAD_ACCESS:
- return _NSIG + EXC_BAD_ACCESS;
-#endif
-#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
- case GDB_EXC_BAD_INSTRUCTION:
- return _NSIG + EXC_BAD_INSTRUCTION;
-#endif
-#if defined (EXC_ARITHMETIC) && defined (_NSIG)
- case GDB_EXC_ARITHMETIC:
- return _NSIG + EXC_ARITHMETIC;
-#endif
-#if defined (EXC_EMULATION) && defined (_NSIG)
- case GDB_EXC_EMULATION:
- return _NSIG + EXC_EMULATION;
-#endif
-#if defined (EXC_SOFTWARE) && defined (_NSIG)
- case GDB_EXC_SOFTWARE:
- return _NSIG + EXC_SOFTWARE;
-#endif
-#if defined (EXC_BREAKPOINT) && defined (_NSIG)
- case GDB_EXC_BREAKPOINT:
- return _NSIG + EXC_BREAKPOINT;
-#endif
-
-#if defined (SIGINFO)
- case GDB_SIGNAL_INFO:
- return SIGINFO;
-#endif
-#if defined (SIGLIBRT)
- case GDB_SIGNAL_LIBRT:
- return SIGLIBRT;
-#endif
-
- default:
-#if defined (REALTIME_LO)
- retsig = 0;
-
- if (oursig >= GDB_SIGNAL_REALTIME_33
- && oursig <= GDB_SIGNAL_REALTIME_63)
- {
- /* This block of signals is continuous, and
- GDB_SIGNAL_REALTIME_33 is 33 by definition. */
- retsig = (int) oursig - (int) GDB_SIGNAL_REALTIME_33 + 33;
- }
- else if (oursig == GDB_SIGNAL_REALTIME_32)
- {
- /* GDB_SIGNAL_REALTIME_32 isn't contiguous with
- GDB_SIGNAL_REALTIME_33. It is 32 by definition. */
- retsig = 32;
- }
- else if (oursig >= GDB_SIGNAL_REALTIME_64
- && oursig <= GDB_SIGNAL_REALTIME_127)
- {
- /* This block of signals is continuous, and
- GDB_SIGNAL_REALTIME_64 is 64 by definition. */
- retsig = (int) oursig - (int) GDB_SIGNAL_REALTIME_64 + 64;
- }
-
- if (retsig >= REALTIME_LO && retsig < REALTIME_HI)
- return retsig;
-#endif
-
- *oursig_ok = 0;
- return 0;
- }
-}
-
-int
-gdb_signal_to_host_p (enum gdb_signal oursig)
-{
- int oursig_ok;
- do_gdb_signal_to_host (oursig, &oursig_ok);
- return oursig_ok;
-}
-
-int
-gdb_signal_to_host (enum gdb_signal oursig)
-{
- int oursig_ok;
- int targ_signo = do_gdb_signal_to_host (oursig, &oursig_ok);
- if (!oursig_ok)
- {
- /* The user might be trying to do "signal SIGSAK" where this system
- doesn't have SIGSAK. */
- warning (_("Signal %s does not exist on this system."),
- gdb_signal_to_name (oursig));
- return 0;
- }
- else
- return targ_signo;
-}
projects / thirdparty / binutils-gdb.git / blobdiff