* infrun.c (wait_for_inferior): Don't test for SIGEMT
(which is not a Posix signal) if it isn't defined. * tm-linux.h, xm-linux.h, config/linux.m[ht], configure.in: New port to Linux (a free Unix clone for 386 machines).
This commit is contained in:
Per Bothner
parent
defb51a722
commit
e37a6e9c8a
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@ -1,3 +1,10 @@
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Mon Jun 22 17:19:02 1992 Per Bothner (bothner@cygnus.com)
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* infrun.c (wait_for_inferior): Don't test for SIGEMT
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(which is not a Posix signal) if it isn't defined.
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* tm-linux.h, xm-linux.h, config/linux.m[ht], configure.in:
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New port to Linux (a free Unix clone for 386 machines).
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Sat Jun 20 19:19:52 1992 John Gilmore (gnu at cygnus.com)
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COFF changes for dealing better with EPI 29K C compiler output.
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@ -108,6 +108,7 @@ i386)
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sysv*) gdb_host=i386v ;;
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scosysv*) gdb_host=i386sco ;;
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mach) gdb_host=i386mach ;;
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linux) gdb_host=linux ;;
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esac
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;;
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esac
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@ -316,6 +317,7 @@ i386)
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mach) gdb_target=i386mach ;;
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coff) gdb_target=i386v ;;
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aout) gdb_target=i386aout ;;
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linux) gdb_target=linux ;;
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esac
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esac
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;;
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79
gdb/infrun.c
79
gdb/infrun.c
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@ -109,7 +109,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "breakpoint.h"
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#include "wait.h"
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#include "gdbcore.h"
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#include "signame.h"
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#include "command.h"
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#include "terminal.h" /* For #ifdef TIOCGPGRP and new_tty */
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#include "target.h"
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@ -133,7 +132,7 @@ extern int original_stack_limit;
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/* Prototypes for local functions */
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static void
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signals_info PARAMS ((char *));
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signals_info PARAMS ((char *, int));
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static void
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handle_command PARAMS ((char *, int));
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@ -158,9 +157,6 @@ resume_cleanups PARAMS ((int));
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extern char **environ;
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extern int sys_nerr;
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extern char *sys_errlist[];
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extern struct target_ops child_ops; /* In inftarg.c */
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/* Sigtramp is a routine that the kernel calls (which then calls the
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@ -215,9 +211,9 @@ extern dc_dcontext_t current_context;
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/* Tables of how to react to signals; the user sets them. */
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static char signal_stop[NSIG];
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static char signal_print[NSIG];
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static char signal_program[NSIG];
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static char *signal_stop;
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static char *signal_print;
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static char *signal_program;
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/* Nonzero if breakpoints are now inserted in the inferior. */
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/* Nonstatic for initialization during xxx_create_inferior. FIXME. */
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@ -599,7 +595,7 @@ child_create_inferior (exec_file, allargs, env)
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execlp (shell_file, shell_file, "-c", shell_command, (char *)0);
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fprintf (stderr, "Cannot exec %s: %s.\n", shell_file,
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errno < sys_nerr ? sys_errlist[errno] : "unknown error");
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safe_strerror (errno));
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fflush (stderr);
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_exit (0177);
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}
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@ -735,6 +731,9 @@ child_attach (args, from_tty)
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#else
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pid = atoi (args);
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if (pid == getpid()) /* Trying to masturbate? */
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error ("I refuse to debug myself!");
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if (target_has_execution)
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{
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if (query ("A program is being debugged already. Kill it? "))
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@ -817,11 +816,11 @@ wait_for_inferior ()
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{
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target_terminal_ours (); /* Must do this before mourn anyway */
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if (WEXITSTATUS (w))
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printf ("\nProgram exited with code 0%o.\n",
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printf_filtered ("\nProgram exited with code 0%o.\n",
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(unsigned int)WEXITSTATUS (w));
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else
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if (!batch_mode())
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printf ("\nProgram exited normally.\n");
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printf_filtered ("\nProgram exited normally.\n");
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fflush (stdout);
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target_mourn_inferior ();
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#ifdef NO_SINGLE_STEP
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@ -837,16 +836,13 @@ wait_for_inferior ()
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target_terminal_ours (); /* Must do this before mourn anyway */
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target_kill (); /* kill mourns as well */
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#ifdef PRINT_RANDOM_SIGNAL
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printf ("\nProgram terminated: ");
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printf_filtered ("\nProgram terminated: ");
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PRINT_RANDOM_SIGNAL (stop_signal);
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#else
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printf ("\nProgram terminated with signal %d, %s\n",
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stop_signal,
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stop_signal < NSIG
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? sys_siglist[stop_signal]
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: "(undocumented)");
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printf_filtered ("\nProgram terminated with signal %d, %s\n",
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stop_signal, safe_strsignal (stop_signal));
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#endif
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printf ("The inferior process no longer exists.\n");
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printf_filtered ("The inferior process no longer exists.\n");
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fflush (stdout);
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#ifdef NO_SINGLE_STEP
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one_stepped = 0;
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@ -902,7 +898,10 @@ wait_for_inferior ()
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if (stop_signal == SIGTRAP
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|| (breakpoints_inserted &&
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(stop_signal == SIGILL
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|| stop_signal == SIGEMT))
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#ifdef SIGEMT
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|| stop_signal == SIGEMT
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#endif
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))
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|| stop_soon_quietly)
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{
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if (stop_signal == SIGTRAP && stop_after_trap)
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@ -1007,11 +1006,8 @@ wait_for_inferior ()
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#ifdef PRINT_RANDOM_SIGNAL
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PRINT_RANDOM_SIGNAL (stop_signal);
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#else
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printf ("\nProgram received signal %d, %s\n",
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stop_signal,
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stop_signal < NSIG
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? sys_siglist[stop_signal]
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: "(undocumented)");
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printf_filtered ("\nProgram received signal %d, %s\n",
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stop_signal, safe_strsignal (stop_signal));
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#endif /* PRINT_RANDOM_SIGNAL */
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fflush (stdout);
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}
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@ -1493,7 +1489,7 @@ normal_stop ()
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{
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target_terminal_ours_for_output ();
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print_sys_errmsg ("ptrace", breakpoints_failed);
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printf ("Stopped; cannot insert breakpoints.\n\
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printf_filtered ("Stopped; cannot insert breakpoints.\n\
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The same program may be running in another process.\n");
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}
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@ -1504,7 +1500,7 @@ The same program may be running in another process.\n");
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if (remove_breakpoints ())
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{
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target_terminal_ours_for_output ();
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printf ("Cannot remove breakpoints because program is no longer writable.\n\
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printf_filtered ("Cannot remove breakpoints because program is no longer writable.\n\
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It might be running in another process.\n\
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Further execution is probably impossible.\n");
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}
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@ -1614,15 +1610,16 @@ static void
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sig_print_info (number)
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int number;
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{
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char *abbrev = sig_abbrev(number);
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if (abbrev == NULL)
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char *name;
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if ((name = strsigno (number)) == NULL)
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printf_filtered ("%d\t\t", number);
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else
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printf_filtered ("SIG%s (%d)\t", abbrev, number);
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printf_filtered ("%s (%d)\t", name, number);
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printf_filtered ("%s\t", signal_stop[number] ? "Yes" : "No");
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printf_filtered ("%s\t", signal_print[number] ? "Yes" : "No");
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printf_filtered ("%s\t\t", signal_program[number] ? "Yes" : "No");
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printf_filtered ("%s\n", sys_siglist[number]);
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printf_filtered ("%s\n", safe_strsignal (number));
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}
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/* Specify how various signals in the inferior should be handled. */
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@ -1666,7 +1663,7 @@ handle_command (args, from_tty)
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{
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/* Numeric. */
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signum = atoi (p);
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if (signum <= 0 || signum >= NSIG)
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if (signum <= 0 || signum > signo_max ())
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{
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p[wordlen] = '\0';
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error ("Invalid signal %s given as argument to \"handle\".", p);
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@ -1675,14 +1672,14 @@ handle_command (args, from_tty)
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else
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{
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/* Symbolic. */
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signum = sig_number (p);
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if (signum == -1)
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signum = strtosigno (p);
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if (signum == 0)
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error ("No such signal \"%s\"", p);
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}
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if (signum == SIGTRAP || signum == SIGINT)
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{
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if (!query ("SIG%s is used by the debugger.\nAre you sure you want to change it? ", sig_abbrev (signum)))
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if (!query ("%s is used by the debugger.\nAre you sure you want to change it? ", strsigno (signum)))
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error ("Not confirmed.");
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}
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}
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@ -1734,8 +1731,9 @@ handle_command (args, from_tty)
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/* Print current contents of the tables set by the handle command. */
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static void
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signals_info (signum_exp)
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signals_info (signum_exp, from_tty)
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char *signum_exp;
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int from_tty;
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{
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register int i;
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sig_print_header ();
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@ -1743,8 +1741,8 @@ signals_info (signum_exp)
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if (signum_exp)
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{
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/* First see if this is a symbol name. */
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i = sig_number (signum_exp);
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if (i == -1)
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i = strtosigno (signum_exp);
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if (i == 0)
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{
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/* Nope, maybe it's an address which evaluates to a signal
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number. */
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@ -1872,6 +1870,7 @@ void
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_initialize_infrun ()
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{
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register int i;
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register int numsigs;
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add_info ("signals", signals_info,
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"What debugger does when program gets various signals.\n\
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@ -1887,7 +1886,11 @@ Stop means reenter debugger if this signal happens (implies print).\n\
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Pass means let program see this signal; otherwise program doesn't know.\n\
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Pass and Stop may be combined.");
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for (i = 0; i < NSIG; i++)
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numsigs = signo_max () + 1;
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signal_stop = xmalloc (sizeof (signal_stop[0]) * numsigs);
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signal_print = xmalloc (sizeof (signal_print[0]) * numsigs);
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signal_program = xmalloc (sizeof (signal_program[0]) * numsigs);
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for (i = 0; i < numsigs; i++)
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{
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signal_stop[i] = 1;
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signal_print[i] = 1;
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@ -0,0 +1,27 @@
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/* Macro definitions for linux.
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Copyright (C) 1992 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if !defined (TM_LINUX_H)
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#define TM_LINUX_H 1
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/* number of traps that happen between exec'ing the shell
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* to run an inferior, and when we finally get to
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* the inferior code. This is 2 on most implementations.
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*/
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#define START_INFERIOR_TRAPS_EXPECTED 2
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#include "tm-i386v.h"
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/* Define this if the C compiler puts an underscore at the front
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of external names before giving them to the linker. */
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#define NAMES_HAVE_UNDERSCORE
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#endif /* !defined (TM_LINUX_H) */
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@ -0,0 +1,23 @@
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/* Macro defintions for linux.
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Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "xm-i386v.h"
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/* Tell gdb that we can attach and detach other processes */
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#define ATTACH_DETACH
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/* This is the amount to subtract from u.u_ar0
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to get the offset in the core file of the register values. */
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#undef KERNEL_U_ADDR
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#define KERNEL_U_ADDR 0x0
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#define U_REGS_OFFSET 0
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