diff options
Diffstat (limited to 'gdb/common/signals.c')
| -rw-r--r-- | gdb/common/signals.c | 653 |
1 files changed, 0 insertions, 653 deletions
diff --git a/gdb/common/signals.c b/gdb/common/signals.c deleted file mode 100644 index 707bbe9..0000000 --- a/gdb/common/signals.c +++ /dev/null @@ -1,653 +0,0 @@ -/* 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; -} - -/* 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; -} |