/* Select target systems and architectures at runtime for GDB.
- Copyright 1990, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Copyright 1990, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB.
#include "defs.h"
#include <errno.h>
#include <ctype.h>
+#include "gdb_string.h"
#include "target.h"
#include "gdbcmd.h"
#include "symtab.h"
/* The initial current target, so that there is always a semi-valid
current target. */
-struct target_ops dummy_target = {"None", "None", "",
- 0, 0, /* open, close */
- find_default_attach, 0, /* attach, detach */
- 0, 0, /* resume, wait */
- 0, 0, 0, /* registers */
- 0, 0, /* memory */
- 0, 0, /* bkpts */
- 0, 0, 0, 0, 0, /* terminal */
- 0, 0, /* kill, load */
- 0, /* lookup_symbol */
- find_default_create_inferior, /* create_inferior */
- 0, /* mourn_inferior */
- 0, /* can_run */
- 0, /* notice_signals */
- dummy_stratum, 0, /* stratum, next */
- 0, 0, 0, 0, 0, /* all mem, mem, stack, regs, exec */
- 0, 0, /* section pointers */
- OPS_MAGIC,
+struct target_ops dummy_target = {
+ "None", /* to_shortname */
+ "None", /* to_longname */
+ "", /* to_doc */
+ 0, /* to_open */
+ 0, /* to_close */
+ find_default_attach, /* to_attach */
+ 0, /* to_detach */
+ 0, /* to_resume */
+ 0, /* to_wait */
+ 0, /* to_fetch_registers */
+ 0, /* to_store_registers */
+ 0, /* to_prepare_to_store */
+ 0, /* to_xfer_memory */
+ 0, /* to_files_info */
+ 0, /* to_insert_breakpoint */
+ 0, /* to_remove_breakpoint */
+ 0, /* to_terminal_init */
+ 0, /* to_terminal_inferior */
+ 0, /* to_terminal_ours_for_output */
+ 0, /* to_terminal_ours */
+ 0, /* to_terminal_info */
+ 0, /* to_kill */
+ 0, /* to_load */
+ 0, /* to_lookup_symbol */
+ find_default_create_inferior, /* to_create_inferior */
+ 0, /* to_mourn_inferior */
+ 0, /* to_can_run */
+ 0, /* to_notice_signals */
+ 0, /* to_thread_alive */
+ 0, /* to_stop */
+ dummy_stratum, /* to_stratum */
+ 0, /* to_next */
+ 0, /* to_next */
+ 0, /* to_has_all_memory */
+ 0, /* to_has_memory */
+ 0, /* to_has_registers */
+ 0, /* to_has_execution */
+ 0, /* to_sections */
+ 0, /* to_sections_end */
+ OPS_MAGIC, /* to_magic */
};
/* Top of target stack. */
int attach_flag;
+#ifdef MAINTENANCE_CMDS
+/* Non-zero if we want to see trace of target level stuff. */
+
+static int targetdebug = 0;
+
+static void setup_target_debug PARAMS ((void));
+
+#endif
+
/* The user just typed 'target' without the name of a target. */
/* ARGSUSED */
target_struct_allocsize * sizeof (*target_structs));
}
target_structs[target_struct_size++] = t;
- cleanup_target (t);
+/* cleanup_target (t);*/
if (targetlist == NULL)
add_prefix_cmd ("target", class_run, target_command,
de_fault (to_mourn_inferior, (void (*)())noprocess);
de_fault (to_can_run, return_zero);
de_fault (to_notice_signals, (void (*)())ignore);
+ de_fault (to_thread_alive, (int (*)())ignore);
+ de_fault (to_stop, (void (*)())ignore);
#undef de_fault
}
INHERIT (to_mourn_inferior, t);
INHERIT (to_can_run, t);
INHERIT (to_notice_signals, t);
+ INHERIT (to_thread_alive, t);
+ INHERIT (to_stop, t);
INHERIT (to_stratum, t);
INHERIT (DONT_USE, t);
INHERIT (to_has_all_memory, t);
update_current_target ();
cleanup_target (¤t_target); /* Fill in the gaps */
+
+#ifdef MAINTENANCE_CMDS
+ if (targetdebug)
+ setup_target_debug ();
+#endif
+
return prev != 0;
}
{
struct target_stack_item *cur, *prev;
- t->to_close (0); /* Let it clean up */
+ if (t->to_close)
+ t->to_close (0); /* Let it clean up */
/* Look for the specified target. Note that we assume that a target
can only occur once in the target stack. */
for (item = target_stack; item; item = item->next)
{
t = item->target_ops;
+ if (!t->to_has_memory)
+ continue;
res = t->to_xfer_memory (memaddr, myaddr, curlen, write, t);
if (res > 0)
{
t = item->target_ops;
+ if (!t->to_has_memory)
+ continue;
+
if ((int)(t->to_stratum) <= (int)dummy_stratum)
continue;
if (has_all_mem)
for (t = target_structs; t < target_structs + target_struct_size;
++t)
{
- if (target_can_run(*t))
+ if ((*t)->to_can_run && target_can_run(*t))
{
runable = *t;
++count;
{"SIGMSG", "Monitor mode data available"},
{"SIGSOUND", "Sound completed"},
{"SIGSAK", "Secure attention"},
+ {"SIGPRIO", "SIGPRIO"},
+ {"SIG33", "Real-time event 33"},
+ {"SIG34", "Real-time event 34"},
+ {"SIG35", "Real-time event 35"},
+ {"SIG36", "Real-time event 36"},
+ {"SIG37", "Real-time event 37"},
+ {"SIG38", "Real-time event 38"},
+ {"SIG39", "Real-time event 39"},
+ {"SIG40", "Real-time event 40"},
+ {"SIG41", "Real-time event 41"},
+ {"SIG42", "Real-time event 42"},
+ {"SIG43", "Real-time event 43"},
+ {"SIG44", "Real-time event 44"},
+ {"SIG45", "Real-time event 45"},
+ {"SIG46", "Real-time event 46"},
+ {"SIG47", "Real-time event 47"},
+ {"SIG48", "Real-time event 48"},
+ {"SIG49", "Real-time event 49"},
+ {"SIG50", "Real-time event 50"},
+ {"SIG51", "Real-time event 51"},
+ {"SIG52", "Real-time event 52"},
+ {"SIG53", "Real-time event 53"},
+ {"SIG54", "Real-time event 54"},
+ {"SIG55", "Real-time event 55"},
+ {"SIG56", "Real-time event 56"},
+ {"SIG57", "Real-time event 57"},
+ {"SIG58", "Real-time event 58"},
+ {"SIG59", "Real-time event 59"},
+ {"SIG60", "Real-time event 60"},
+ {"SIG61", "Real-time event 61"},
+ {"SIG62", "Real-time event 62"},
+ {"SIG63", "Real-time event 63"},
+
{NULL, "Unknown signal"},
{NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
#endif
#if defined (SIGSAK)
if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK;
+#endif
+#if defined (SIGPRIO)
+ if (hostsig == SIGPRIO) return TARGET_SIGNAL_PRIO;
+#endif
+#if defined (REALTIME_LO)
+ if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
+ return (enum target_signal)
+ (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
#endif
return TARGET_SIGNAL_UNKNOWN;
}
#endif
#if defined (SIGSAK)
case TARGET_SIGNAL_SAK: return SIGSAK;
+#endif
+#if defined (SIGPRIO)
+ case TARGET_SIGNAL_PRIO: return SIGPRIO;
#endif
default:
+#if defined (REALTIME_LO)
+ if (oursig >= TARGET_SIGNAL_REALTIME_33
+ && oursig <= TARGET_SIGNAL_REALTIME_63)
+ {
+ int retsig =
+ (int)oursig - (int)TARGET_SIGNAL_REALTIME_33 + REALTIME_LO;
+ if (retsig < REALTIME_HI)
+ return retsig;
+ }
+#endif
/* 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.\n",
ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
}
}
+\f
+/* In some circumstances we allow a command to specify a numeric
+ signal. The idea is to keep these circumstances limited so that
+ users (and scripts) develop portable habits. For comparison,
+ POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
+ numeric signal at all is obscelescent. We are slightly more
+ lenient and allow 1-15 which should match host signal numbers on
+ most systems. Use of symbolic signal names is strongly encouraged. */
+enum target_signal
+target_signal_from_command (num)
+ int num;
+{
+ if (num >= 1 && num <= 15)
+ return (enum target_signal)num;
+ error ("Only signals 1-15 are valid as numeric signals.\n\
+Use \"info signals\" for a list of symbolic signals.");
+}
\f
/* Returns zero to leave the inferior alone, one to interrupt it. */
int (*target_activity_function) PARAMS ((void));
{
static char buf[30];
- sprintf (buf, "process %d", pid);
+ if (STREQ (current_target.to_shortname, "remote"))
+ sprintf (buf, "thread %d", pid);
+ else
+ sprintf (buf, "process %d", pid);
return buf;
}
\f
+#ifdef MAINTENANCE_CMDS
+static struct target_ops debug_target;
+
+static void
+debug_to_open (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ debug_target.to_open (args, from_tty);
+
+ fprintf_unfiltered (stderr, "target_open (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_close (quitting)
+ int quitting;
+{
+ debug_target.to_close (quitting);
+
+ fprintf_unfiltered (stderr, "target_close (%d)\n", quitting);
+}
+
+static void
+debug_to_attach (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ debug_target.to_attach (args, from_tty);
+
+ fprintf_unfiltered (stderr, "target_attach (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_detach (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ debug_target.to_detach (args, from_tty);
+
+ fprintf_unfiltered (stderr, "target_detach (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_resume (pid, step, siggnal)
+ int pid;
+ int step;
+ enum target_signal siggnal;
+{
+ debug_target.to_resume (pid, step, siggnal);
+
+ fprintf_unfiltered (stderr, "target_resume (%d, %s, %s)\n", pid,
+ step ? "step" : "continue",
+ target_signal_to_name (siggnal));
+}
+
+static int
+debug_to_wait (pid, status)
+ int pid;
+ struct target_waitstatus *status;
+{
+ int retval;
+
+ retval = debug_target.to_wait (pid, status);
+
+ fprintf_unfiltered (stderr, "target_wait (%d, status) = %d, ", pid, retval);
+ fprintf_unfiltered (stderr, "status->kind = ");
+ switch (status->kind)
+ {
+ case TARGET_WAITKIND_EXITED:
+ fprintf_unfiltered (stderr, "exited, status = %d\n", status->value.integer);
+ break;
+ case TARGET_WAITKIND_STOPPED:
+ fprintf_unfiltered (stderr, "stopped, signal = %s\n",
+ target_signal_to_name (status->value.sig));
+ break;
+ case TARGET_WAITKIND_SIGNALLED:
+ fprintf_unfiltered (stderr, "signalled, signal = %s\n",
+ target_signal_to_name (status->value.sig));
+ break;
+ case TARGET_WAITKIND_LOADED:
+ fprintf_unfiltered (stderr, "loaded\n");
+ break;
+ case TARGET_WAITKIND_SPURIOUS:
+ fprintf_unfiltered (stderr, "spurious\n");
+ break;
+ default:
+ fprintf_unfiltered (stderr, "unknown???\n");
+ break;
+ }
+
+ return retval;
+}
+
+static void
+debug_to_fetch_registers (regno)
+ int regno;
+{
+ debug_target.to_fetch_registers (regno);
+
+ fprintf_unfiltered (stderr, "target_fetch_registers (%s)",
+ regno != -1 ? reg_names[regno] : "-1");
+ if (regno != -1)
+ fprintf_unfiltered (stderr, " = 0x%x %d", read_register (regno),
+ read_register (regno));
+ fprintf_unfiltered (stderr, "\n");
+}
+
+static void
+debug_to_store_registers (regno)
+ int regno;
+{
+ debug_target.to_store_registers (regno);
+
+ if (regno >= 0 && regno < NUM_REGS)
+ fprintf_unfiltered (stderr, "target_store_registers (%s) = 0x%x %d\n",
+ reg_names[regno], read_register (regno),
+ read_register (regno));
+ else
+ fprintf_unfiltered (stderr, "target_store_registers (%d)\n", regno);
+}
+
+static void
+debug_to_prepare_to_store ()
+{
+ debug_target.to_prepare_to_store ();
+
+ fprintf_unfiltered (stderr, "target_prepare_to_store ()\n");
+}
+
+static int
+debug_to_xfer_memory (memaddr, myaddr, len, write, target)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+ int write;
+ struct target_ops *target;
+{
+ int retval;
+
+ retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, target);
+
+ fprintf_unfiltered (stderr, "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
+ memaddr, len, write ? "write" : "read", retval);
+
+ if (retval > 0)
+ {
+ int i;
+
+ fputs_unfiltered (", bytes =", gdb_stderr);
+ for (i = 0; i < retval; i++)
+ fprintf_unfiltered (stderr, " %02x", myaddr[i] & 0xff);
+ }
+
+ fputc_unfiltered ('\n', gdb_stderr);
+
+ return retval;
+}
+
+static void
+debug_to_files_info (target)
+ struct target_ops *target;
+{
+ debug_target.to_files_info (target);
+
+ fprintf_unfiltered (stderr, "target_files_info (xxx)\n");
+}
+
+static int
+debug_to_insert_breakpoint (addr, save)
+ CORE_ADDR addr;
+ char *save;
+{
+ int retval;
+
+ retval = debug_target.to_insert_breakpoint (addr, save);
+
+ fprintf_unfiltered (stderr, "target_insert_breakpoint (0x%x, xxx) = %d\n",
+ addr, retval);
+ return retval;
+}
+
+static int
+debug_to_remove_breakpoint (addr, save)
+ CORE_ADDR addr;
+ char *save;
+{
+ int retval;
+
+ retval = debug_target.to_remove_breakpoint (addr, save);
+
+ fprintf_unfiltered (stderr, "target_remove_breakpoint (0x%x, xxx) = %d\n",
+ addr, retval);
+ return retval;
+}
+
+static void
+debug_to_terminal_init ()
+{
+ debug_target.to_terminal_init ();
+
+ fprintf_unfiltered (stderr, "target_terminal_init ()\n");
+}
+
+static void
+debug_to_terminal_inferior ()
+{
+ debug_target.to_terminal_inferior ();
+
+ fprintf_unfiltered (stderr, "target_terminal_inferior ()\n");
+}
+
+static void
+debug_to_terminal_ours_for_output ()
+{
+ debug_target.to_terminal_ours_for_output ();
+
+ fprintf_unfiltered (stderr, "target_terminal_ours_for_output ()\n");
+}
+
+static void
+debug_to_terminal_ours ()
+{
+ debug_target.to_terminal_ours ();
+
+ fprintf_unfiltered (stderr, "target_terminal_ours ()\n");
+}
+
+static void
+debug_to_terminal_info (arg, from_tty)
+ char *arg;
+ int from_tty;
+{
+ debug_target.to_terminal_info (arg, from_tty);
+
+ fprintf_unfiltered (stderr, "target_terminal_info (%s, %d)\n", arg,
+ from_tty);
+}
+
+static void
+debug_to_kill ()
+{
+ debug_target.to_kill ();
+
+ fprintf_unfiltered (stderr, "target_kill ()\n");
+}
+
+static void
+debug_to_load (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ debug_target.to_load (args, from_tty);
+
+ fprintf_unfiltered (stderr, "target_load (%s, %d)\n", args, from_tty);
+}
+
+static int
+debug_to_lookup_symbol (name, addrp)
+ char *name;
+ CORE_ADDR *addrp;
+{
+ int retval;
+
+ retval = debug_target.to_lookup_symbol (name, addrp);
+
+ fprintf_unfiltered (stderr, "target_lookup_symbol (%s, xxx)\n", name);
+
+ return retval;
+}
+
+static void
+debug_to_create_inferior (exec_file, args, env)
+ char *exec_file;
+ char *args;
+ char **env;
+{
+ debug_target.to_create_inferior (exec_file, args, env);
+
+ fprintf_unfiltered (stderr, "target_create_inferior (%s, %s, xxx)\n",
+ exec_file, args);
+}
+
+static void
+debug_to_mourn_inferior ()
+{
+ debug_target.to_mourn_inferior ();
+
+ fprintf_unfiltered (stderr, "target_mourn_inferior ()\n");
+}
+
+static int
+debug_to_can_run ()
+{
+ int retval;
+
+ retval = debug_target.to_can_run ();
+
+ fprintf_unfiltered (stderr, "target_can_run () = %d\n", retval);
+
+ return retval;
+}
+
+static void
+debug_to_notice_signals (pid)
+ int pid;
+{
+ debug_target.to_notice_signals (pid);
+
+ fprintf_unfiltered (stderr, "target_notice_signals (%d)\n", pid);
+}
+
+static int
+debug_to_thread_alive (pid)
+ int pid;
+{
+ debug_target.to_thread_alive (pid);
+
+ fprintf_unfiltered (stderr, "target_thread_alive (%d)\n", pid);
+ return (0);
+}
+
+static void
+debug_to_stop ()
+{
+ debug_target.to_stop ();
+
+ fprintf_unfiltered (stderr, "target_stop ()\n");
+}
+
+static void
+setup_target_debug ()
+{
+ memcpy (&debug_target, ¤t_target, sizeof debug_target);
+
+ current_target.to_open = debug_to_open;
+ current_target.to_close = debug_to_close;
+ current_target.to_attach = debug_to_attach;
+ current_target.to_detach = debug_to_detach;
+ current_target.to_resume = debug_to_resume;
+ current_target.to_wait = debug_to_wait;
+ current_target.to_fetch_registers = debug_to_fetch_registers;
+ current_target.to_store_registers = debug_to_store_registers;
+ current_target.to_prepare_to_store = debug_to_prepare_to_store;
+ current_target.to_xfer_memory = debug_to_xfer_memory;
+ current_target.to_files_info = debug_to_files_info;
+ current_target.to_insert_breakpoint = debug_to_insert_breakpoint;
+ current_target.to_remove_breakpoint = debug_to_remove_breakpoint;
+ current_target.to_terminal_init = debug_to_terminal_init;
+ current_target.to_terminal_inferior = debug_to_terminal_inferior;
+ current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output;
+ current_target.to_terminal_ours = debug_to_terminal_ours;
+ current_target.to_terminal_info = debug_to_terminal_info;
+ current_target.to_kill = debug_to_kill;
+ current_target.to_load = debug_to_load;
+ current_target.to_lookup_symbol = debug_to_lookup_symbol;
+ current_target.to_create_inferior = debug_to_create_inferior;
+ current_target.to_mourn_inferior = debug_to_mourn_inferior;
+ current_target.to_can_run = debug_to_can_run;
+ current_target.to_notice_signals = debug_to_notice_signals;
+ current_target.to_thread_alive = debug_to_thread_alive;
+ current_target.to_stop = debug_to_stop;
+}
+#endif /* MAINTENANCE_CMDS */
+\f
static char targ_desc[] =
"Names of targets and files being debugged.\n\
Shows the entire stack of targets currently in use (including the exec-file,\n\
add_info ("target", target_info, targ_desc);
add_info ("files", target_info, targ_desc);
+#ifdef MAINTENANCE_CMDS
+ add_show_from_set (
+ add_set_cmd ("targetdebug", class_maintenance, var_zinteger,
+ (char *)&targetdebug,
+ "Set target debugging.\n\
+When non-zero, target debugging is enabled.", &setlist),
+ &showlist);
+#endif
+
if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
abort ();
}
projects / deliverable / binutils-gdb.git / blobdiff