/* Select target systems and architectures at runtime for GDB.
- Copyright (C) 1990 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001 Free Software Foundation, Inc.
Contributed by Cygnus Support.
-This file is part of GDB.
+ This file is part of GDB.
-GDB 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 1, or (at your option)
-any later version.
+ 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 2 of the License, or
+ (at your option) any later version.
-GDB 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.
+ 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 GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
-#include <stdio.h>
-#include <errno.h>
-#include <ctype.h>
#include "defs.h"
+#include <errno.h>
+#include "gdb_string.h"
#include "target.h"
#include "gdbcmd.h"
#include "symtab.h"
#include "inferior.h"
#include "bfd.h"
#include "symfile.h"
+#include "objfiles.h"
+#include "gdb_wait.h"
+#include "dcache.h"
+#include <signal.h>
+#include "regcache.h"
+
+extern int errno;
+
+static void target_info (char *, int);
+
+static void cleanup_target (struct target_ops *);
+
+static void maybe_kill_then_create_inferior (char *, char *, char **);
+
+static void default_clone_and_follow_inferior (int, int *);
+
+static void maybe_kill_then_attach (char *, int);
+
+static void kill_or_be_killed (int);
+
+static void default_terminal_info (char *, int);
+
+static int nosymbol (char *, CORE_ADDR *);
+
+static void tcomplain (void);
+
+static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
+
+static int return_zero (void);
+
+static int return_one (void);
+
+void target_ignore (void);
+
+static void target_command (char *, int);
+
+static struct target_ops *find_default_run_target (char *);
+
+static void update_current_target (void);
+
+static void nosupport_runtime (void);
+
+static void normal_target_post_startup_inferior (int pid);
+
+/* Transfer LEN bytes between target address MEMADDR and GDB address
+ MYADDR. Returns 0 for success, errno code for failure (which
+ includes partial transfers -- if you want a more useful response to
+ partial transfers, try either target_read_memory_partial or
+ target_write_memory_partial). */
+
+static int
+target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write);
+
+static void init_dummy_target (void);
+
+static void debug_to_open (char *, int);
+
+static void debug_to_close (int);
+
+static void debug_to_attach (char *, int);
+
+static void debug_to_detach (char *, int);
+
+static void debug_to_resume (int, int, enum target_signal);
+
+static int debug_to_wait (int, struct target_waitstatus *);
+
+static void debug_to_fetch_registers (int);
-extern int memory_insert_breakpoint(), memory_remove_breakpoint();
-extern void host_convert_to_virtual(), host_convert_from_virtual();
+static void debug_to_store_registers (int);
-static void cleanup_target ();
+static void debug_to_prepare_to_store (void);
+
+static int
+debug_to_xfer_memory (CORE_ADDR, char *, int, int, struct mem_attrib *,
+ struct target_ops *);
+
+static void debug_to_files_info (struct target_ops *);
+
+static int debug_to_insert_breakpoint (CORE_ADDR, char *);
+
+static int debug_to_remove_breakpoint (CORE_ADDR, char *);
+
+static void debug_to_terminal_init (void);
+
+static void debug_to_terminal_inferior (void);
+
+static void debug_to_terminal_ours_for_output (void);
+
+static void debug_to_terminal_ours (void);
+
+static void debug_to_terminal_info (char *, int);
+
+static void debug_to_kill (void);
+
+static void debug_to_load (char *, int);
+
+static int debug_to_lookup_symbol (char *, CORE_ADDR *);
+
+static void debug_to_create_inferior (char *, char *, char **);
+
+static void debug_to_mourn_inferior (void);
+
+static int debug_to_can_run (void);
+
+static void debug_to_notice_signals (int);
+
+static int debug_to_thread_alive (int);
+
+static void debug_to_stop (void);
+
+static int debug_to_query (int /*char */ , char *, char *, int *);
/* Pointer to array of target architecture structures; the size of the
array; the current index into the array; the allocated size of the
/* The initial current target, so that there is always a semi-valid
current target. */
-struct target_ops dummy_target = {"None", "None",
- 0, 0, 0, 0, /* open, close, attach, detach */
- 0, 0, /* resume, wait */
- 0, 0, 0, 0, 0, /* registers */
- 0, 0, /* memory */
- 0, 0, /* bkpts */
- 0, 0, 0, 0, 0, /* terminal */
- 0, 0, 0, /* kill, load, add_syms */
- 0, 0, /* call_function, lookup_symbol */
- 0, 0, /* create_inferior, mourn_inferior */
- dummy_stratum, 0, /* stratum, next */
- 0, 0, 0, 0, 0, /* all mem, mem, stack, regs, exec */
- OPS_MAGIC,
-};
+static struct target_ops dummy_target;
+
+/* Top of target stack. */
+
+struct target_stack_item *target_stack;
/* The target structure we are currently using to talk to a process
or file or whatever "inferior" we have. */
-struct target_ops *current_target;
+struct target_ops current_target;
+
+/* Command list for target. */
-/* The stack of target structures that have been pushed. */
+static struct cmd_list_element *targetlist = NULL;
-struct target_ops **current_target_stack;
+/* Nonzero if we are debugging an attached outside process
+ rather than an inferior. */
+int attach_flag;
+
+/* Non-zero if we want to see trace of target level stuff. */
+
+static int targetdebug = 0;
+
+static void setup_target_debug (void);
+
+DCACHE *target_dcache;
+
+/* The user just typed 'target' without the name of a target. */
+
+/* ARGSUSED */
+static void
+target_command (char *arg, int from_tty)
+{
+ fputs_filtered ("Argument required (target name). Try `help target'\n",
+ gdb_stdout);
+}
/* Add a possible target architecture to the list. */
void
-add_target (t)
- struct target_ops *t;
+add_target (struct target_ops *t)
{
- if (t->to_magic != OPS_MAGIC)
- {
- fprintf(stderr, "Magic number of %s target struct wrong\n",
- t->to_shortname);
- abort();
- }
-
if (!target_structs)
{
target_struct_allocsize = DEFAULT_ALLOCSIZE;
if (target_struct_size >= target_struct_allocsize)
{
target_struct_allocsize *= 2;
- target_structs = (struct target_ops **) xrealloc (target_structs,
- target_struct_allocsize * sizeof (*target_structs));
+ target_structs = (struct target_ops **)
+ xrealloc ((char *) target_structs,
+ 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,
+ "Connect to a target machine or process.\n\
+The first argument is the type or protocol of the target machine.\n\
+Remaining arguments are interpreted by the target protocol. For more\n\
+information on the arguments for a particular protocol, type\n\
+`help target ' followed by the protocol name.",
+ &targetlist, "target ", 0, &cmdlist);
+ add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist);
}
/* Stub functions */
-static void
-ignore ()
+void
+target_ignore (void)
{
}
+void
+target_load (char *arg, int from_tty)
+{
+ dcache_invalidate (target_dcache);
+ (*current_target.to_load) (arg, from_tty);
+}
+
/* ARGSUSED */
static int
-nomemory (memaddr, myaddr, len, write)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
+nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write,
+ struct target_ops *t)
{
- return 0; /* No bytes handled */
+ errno = EIO; /* Can't read/write this location */
+ return 0; /* No bytes handled */
}
static void
-tcomplain ()
+tcomplain (void)
{
error ("You can't do that when your target is `%s'",
- current_target->to_shortname);
+ current_target.to_shortname);
}
-static int
-noprocess ()
+void
+noprocess (void)
{
- error ("You can't do that without a process to debug");
+ error ("You can't do that without a process to debug.");
}
+/* ARGSUSED */
static int
-nosymbol (name, addrp)
- char *name;
- CORE_ADDR *addrp;
+nosymbol (char *name, CORE_ADDR *addrp)
{
- return 1; /* Symbol does not exist in target env */
+ return 1; /* Symbol does not exist in target env */
}
+/* ARGSUSED */
static void
-default_terminal_info (args, from_tty)
- char *args;
- int from_tty;
+nosupport_runtime (void)
{
- printf("No saved terminal information.\n");
+ if (!inferior_pid)
+ noprocess ();
+ else
+ error ("No run-time support for this");
}
-#if 0
-/* With strata, this function is no longer needed. FIXME. */
-/* This is the default target_create_inferior function. It looks up
- the stack for some target that cares to create inferiors, then
- calls it -- or complains if not found. */
+/* ARGSUSED */
static void
-upstack_create_inferior (exec, args, env)
- char *exec;
- char *args;
- char **env;
+default_terminal_info (char *args, int from_tty)
{
- struct target_ops *t;
-
- for (t = current_target;
- t;
- t = t->to_next)
- {
- if (t->to_create_inferior != upstack_create_inferior)
- {
- t->to_create_inferior (exec, args, env);
- return;
- }
-
- }
- tcomplain();
+ printf_unfiltered ("No saved terminal information.\n");
}
-#endif
/* This is the default target_create_inferior and target_attach function.
If the current target is executing, it asks whether to kill it off.
the target, and the operation should be attempted. */
static void
-kill_or_be_killed (from_tty)
- int from_tty;
+kill_or_be_killed (int from_tty)
{
- struct target_ops *savecur;
-
if (target_has_execution)
{
- printf ("You are already running a program:\n");
+ printf_unfiltered ("You are already running a program:\n");
target_files_info ();
- if (query ("Kill it? ")) {
- savecur = current_target;
- target_kill (0, from_tty);
- if (target_has_execution)
- error ("Killing the program did not help.");
- return;
- } else {
- error ("Program not killed.");
- }
+ if (query ("Kill it? "))
+ {
+ target_kill ();
+ if (target_has_execution)
+ error ("Killing the program did not help.");
+ return;
+ }
+ else
+ {
+ error ("Program not killed.");
+ }
}
- tcomplain();
+ tcomplain ();
}
static void
-maybe_kill_then_attach (args, from_tty)
- char *args;
- int from_tty;
+maybe_kill_then_attach (char *args, int from_tty)
{
kill_or_be_killed (from_tty);
target_attach (args, from_tty);
}
static void
-maybe_kill_then_create_inferior (exec, args, env)
- char *exec;
- char *args;
- char **env;
+maybe_kill_then_create_inferior (char *exec, char *args, char **env)
{
kill_or_be_killed (0);
target_create_inferior (exec, args, env);
}
+static void
+default_clone_and_follow_inferior (int child_pid, int *followed_child)
+{
+ target_clone_and_follow_inferior (child_pid, followed_child);
+}
+
/* Clean up a target struct so it no longer has any zero pointers in it.
We default entries, at least to stubs that print error messages. */
static void
-cleanup_target (t)
- struct target_ops *t;
+cleanup_target (struct target_ops *t)
{
- /* Check magic number. If wrong, it probably means someone changed
- the struct definition, but not all the places that initialize one. */
- if (t->to_magic != OPS_MAGIC)
- {
- fprintf(stderr, "Magic number of %s target struct wrong\n",
- t->to_shortname);
- abort();
- }
-
#define de_fault(field, value) \
- if (!t->field) t->field = value
-
- /* FIELD DEFAULT VALUE */
-
- de_fault (to_open, tcomplain);
- de_fault (to_close, (void (*)())ignore);
- de_fault (to_attach, maybe_kill_then_attach);
- de_fault (to_detach, (void (*)())ignore);
- de_fault (to_resume, (void (*)())noprocess);
- de_fault (to_wait, noprocess);
- de_fault (to_fetch_registers, noprocess);
- de_fault (to_store_registers, noprocess);
- de_fault (to_prepare_to_store, (void (*)())noprocess);
- de_fault (to_convert_to_virtual, host_convert_to_virtual);
- de_fault (to_convert_from_virtual, host_convert_from_virtual);
- de_fault (to_xfer_memory, nomemory);
- de_fault (to_files_info, ignore);
- de_fault (to_insert_breakpoint, memory_insert_breakpoint);
- de_fault (to_remove_breakpoint, memory_remove_breakpoint);
- de_fault (to_terminal_init, ignore);
- de_fault (to_terminal_inferior, ignore);
- de_fault (to_terminal_ours_for_output,ignore);
- de_fault (to_terminal_ours, ignore);
- de_fault (to_terminal_info, default_terminal_info);
- de_fault (to_kill, (void (*)())noprocess);
- de_fault (to_load, tcomplain);
- de_fault (to_add_syms, tcomplain);
- de_fault (to_call_function, (struct value *(*)())noprocess);
- de_fault (to_lookup_symbol, nosymbol);
- de_fault (to_create_inferior, maybe_kill_then_create_inferior);
- de_fault (to_mourn_inferior, (void (*)())noprocess);
- de_fault (to_next, 0);
- de_fault (to_has_all_memory, 0);
- de_fault (to_has_memory, 0);
- de_fault (to_has_stack, 0);
- de_fault (to_has_registers, 0);
- de_fault (to_has_execution, 0);
-
+ if (!t->field) \
+ t->field = value
+
+ de_fault (to_open,
+ (void (*) (char *, int))
+ tcomplain);
+ de_fault (to_close,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_attach,
+ maybe_kill_then_attach);
+ de_fault (to_post_attach,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_require_attach,
+ maybe_kill_then_attach);
+ de_fault (to_detach,
+ (void (*) (char *, int))
+ target_ignore);
+ de_fault (to_require_detach,
+ (void (*) (int, char *, int))
+ target_ignore);
+ de_fault (to_resume,
+ (void (*) (int, int, enum target_signal))
+ noprocess);
+ de_fault (to_wait,
+ (int (*) (int, struct target_waitstatus *))
+ noprocess);
+ de_fault (to_post_wait,
+ (void (*) (int, int))
+ target_ignore);
+ de_fault (to_fetch_registers,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_store_registers,
+ (void (*) (int))
+ noprocess);
+ de_fault (to_prepare_to_store,
+ (void (*) (void))
+ noprocess);
+ de_fault (to_xfer_memory,
+ (int (*) (CORE_ADDR, char *, int, int, struct mem_attrib *, struct target_ops *))
+ nomemory);
+ de_fault (to_files_info,
+ (void (*) (struct target_ops *))
+ target_ignore);
+ de_fault (to_insert_breakpoint,
+ memory_insert_breakpoint);
+ de_fault (to_remove_breakpoint,
+ memory_remove_breakpoint);
+ de_fault (to_terminal_init,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_terminal_inferior,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_terminal_ours_for_output,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_terminal_ours,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_terminal_info,
+ default_terminal_info);
+ de_fault (to_kill,
+ (void (*) (void))
+ noprocess);
+ de_fault (to_load,
+ (void (*) (char *, int))
+ tcomplain);
+ de_fault (to_lookup_symbol,
+ (int (*) (char *, CORE_ADDR *))
+ nosymbol);
+ de_fault (to_create_inferior,
+ maybe_kill_then_create_inferior);
+ de_fault (to_post_startup_inferior,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_acknowledge_created_inferior,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_clone_and_follow_inferior,
+ default_clone_and_follow_inferior);
+ de_fault (to_post_follow_inferior_by_clone,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_insert_fork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_remove_fork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_insert_vfork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_remove_vfork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_has_forked,
+ (int (*) (int, int *))
+ return_zero);
+ de_fault (to_has_vforked,
+ (int (*) (int, int *))
+ return_zero);
+ de_fault (to_can_follow_vfork_prior_to_exec,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_post_follow_vfork,
+ (void (*) (int, int, int, int))
+ target_ignore);
+ de_fault (to_insert_exec_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_remove_exec_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_has_execd,
+ (int (*) (int, char **))
+ return_zero);
+ de_fault (to_reported_exec_events_per_exec_call,
+ (int (*) (void))
+ return_one);
+ de_fault (to_has_syscall_event,
+ (int (*) (int, enum target_waitkind *, int *))
+ return_zero);
+ de_fault (to_has_exited,
+ (int (*) (int, int, int *))
+ return_zero);
+ de_fault (to_mourn_inferior,
+ (void (*) (void))
+ noprocess);
+ de_fault (to_can_run,
+ return_zero);
+ de_fault (to_notice_signals,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_thread_alive,
+ (int (*) (int))
+ return_zero);
+ de_fault (to_find_new_threads,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_extra_thread_info,
+ (char *(*) (struct thread_info *))
+ return_zero);
+ de_fault (to_stop,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_query,
+ (int (*) (int, char *, char *, int *))
+ return_zero);
+ de_fault (to_rcmd,
+ (void (*) (char *, struct ui_file *))
+ tcomplain);
+ de_fault (to_enable_exception_callback,
+ (struct symtab_and_line * (*) (enum exception_event_kind, int))
+ nosupport_runtime);
+ de_fault (to_get_current_exception_event,
+ (struct exception_event_record * (*) (void))
+ nosupport_runtime);
+ de_fault (to_pid_to_exec_file,
+ (char *(*) (int))
+ return_zero);
+ de_fault (to_core_file_to_sym_file,
+ (char *(*) (char *))
+ return_zero);
+ de_fault (to_can_async_p,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_is_async_p,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_async,
+ (void (*) (void (*) (enum inferior_event_type, void*), void*))
+ tcomplain);
#undef de_fault
}
+/* Go through the target stack from top to bottom, copying over zero entries in
+ current_target. In effect, we are doing class inheritance through the
+ pushed target vectors. */
+
+static void
+update_current_target (void)
+{
+ struct target_stack_item *item;
+ struct target_ops *t;
+
+ /* First, reset current_target */
+ memset (¤t_target, 0, sizeof current_target);
+
+ for (item = target_stack; item; item = item->next)
+ {
+ t = item->target_ops;
+
+#define INHERIT(FIELD, TARGET) \
+ if (!current_target.FIELD) \
+ current_target.FIELD = TARGET->FIELD
+
+ INHERIT (to_shortname, t);
+ INHERIT (to_longname, t);
+ INHERIT (to_doc, t);
+ INHERIT (to_open, t);
+ INHERIT (to_close, t);
+ INHERIT (to_attach, t);
+ INHERIT (to_post_attach, t);
+ INHERIT (to_require_attach, t);
+ INHERIT (to_detach, t);
+ INHERIT (to_require_detach, t);
+ INHERIT (to_resume, t);
+ INHERIT (to_wait, t);
+ INHERIT (to_post_wait, t);
+ INHERIT (to_fetch_registers, t);
+ INHERIT (to_store_registers, t);
+ INHERIT (to_prepare_to_store, t);
+ INHERIT (to_xfer_memory, t);
+ INHERIT (to_files_info, t);
+ INHERIT (to_insert_breakpoint, t);
+ INHERIT (to_remove_breakpoint, t);
+ INHERIT (to_terminal_init, t);
+ INHERIT (to_terminal_inferior, t);
+ INHERIT (to_terminal_ours_for_output, t);
+ INHERIT (to_terminal_ours, t);
+ INHERIT (to_terminal_info, t);
+ INHERIT (to_kill, t);
+ INHERIT (to_load, t);
+ INHERIT (to_lookup_symbol, t);
+ INHERIT (to_create_inferior, t);
+ INHERIT (to_post_startup_inferior, t);
+ INHERIT (to_acknowledge_created_inferior, t);
+ INHERIT (to_clone_and_follow_inferior, t);
+ INHERIT (to_post_follow_inferior_by_clone, t);
+ INHERIT (to_insert_fork_catchpoint, t);
+ INHERIT (to_remove_fork_catchpoint, t);
+ INHERIT (to_insert_vfork_catchpoint, t);
+ INHERIT (to_remove_vfork_catchpoint, t);
+ INHERIT (to_has_forked, t);
+ INHERIT (to_has_vforked, t);
+ INHERIT (to_can_follow_vfork_prior_to_exec, t);
+ INHERIT (to_post_follow_vfork, t);
+ INHERIT (to_insert_exec_catchpoint, t);
+ INHERIT (to_remove_exec_catchpoint, t);
+ INHERIT (to_has_execd, t);
+ INHERIT (to_reported_exec_events_per_exec_call, t);
+ INHERIT (to_has_syscall_event, t);
+ INHERIT (to_has_exited, t);
+ INHERIT (to_mourn_inferior, t);
+ INHERIT (to_can_run, t);
+ INHERIT (to_notice_signals, t);
+ INHERIT (to_thread_alive, t);
+ INHERIT (to_find_new_threads, t);
+ INHERIT (to_pid_to_str, t);
+ INHERIT (to_extra_thread_info, t);
+ INHERIT (to_stop, t);
+ INHERIT (to_query, t);
+ INHERIT (to_rcmd, t);
+ INHERIT (to_enable_exception_callback, t);
+ INHERIT (to_get_current_exception_event, t);
+ INHERIT (to_pid_to_exec_file, t);
+ INHERIT (to_core_file_to_sym_file, t);
+ INHERIT (to_stratum, t);
+ INHERIT (DONT_USE, t);
+ INHERIT (to_has_all_memory, t);
+ INHERIT (to_has_memory, t);
+ INHERIT (to_has_stack, t);
+ INHERIT (to_has_registers, t);
+ INHERIT (to_has_execution, t);
+ INHERIT (to_has_thread_control, t);
+ INHERIT (to_sections, t);
+ INHERIT (to_sections_end, t);
+ INHERIT (to_can_async_p, t);
+ INHERIT (to_is_async_p, t);
+ INHERIT (to_async, t);
+ INHERIT (to_async_mask_value, t);
+ INHERIT (to_magic, t);
+
+#undef INHERIT
+ }
+}
+
/* Push a new target type into the stack of the existing target accessors,
possibly superseding some of the existing accessors.
checking them. */
int
-push_target (t)
- struct target_ops *t;
+push_target (struct target_ops *t)
{
- struct target_ops *st, *prev;
+ struct target_stack_item *cur, *prev, *tmp;
+
+ /* Check magic number. If wrong, it probably means someone changed
+ the struct definition, but not all the places that initialize one. */
+ if (t->to_magic != OPS_MAGIC)
+ {
+ fprintf_unfiltered (gdb_stderr,
+ "Magic number of %s target struct wrong\n",
+ t->to_shortname);
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
+ }
+
+ /* Find the proper stratum to install this target in. */
+
+ for (prev = NULL, cur = target_stack; cur; prev = cur, cur = cur->next)
+ {
+ if ((int) (t->to_stratum) >= (int) (cur->target_ops->to_stratum))
+ break;
+ }
+
+ /* If there's already targets at this stratum, remove them. */
+
+ if (cur)
+ while (t->to_stratum == cur->target_ops->to_stratum)
+ {
+ /* There's already something on this stratum. Close it off. */
+ if (cur->target_ops->to_close)
+ (cur->target_ops->to_close) (0);
+ if (prev)
+ prev->next = cur->next; /* Unchain old target_ops */
+ else
+ target_stack = cur->next; /* Unchain first on list */
+ tmp = cur->next;
+ xfree (cur);
+ cur = tmp;
+ }
+
+ /* We have removed all targets in our stratum, now add the new one. */
+
+ tmp = (struct target_stack_item *)
+ xmalloc (sizeof (struct target_stack_item));
+ tmp->next = cur;
+ tmp->target_ops = t;
- for (prev = 0, st = current_target;
- st;
- prev = st, st = st->to_next) {
- if ((int)(t->to_stratum) >= (int)(st->to_stratum))
- break;
- }
-
- while (t->to_stratum == st->to_stratum) {
- /* There's already something on this stratum. Close it off. */
- (st->to_close) (0);
- if (prev)
- prev->to_next = st->to_next; /* Unchain old target_ops */
- else
- current_target = st->to_next; /* Unchain first on list */
- st = st->to_next;
- }
-
- /* We have removed all targets in our stratum, now add ourself. */
- t->to_next = st;
if (prev)
- prev->to_next = t;
+ prev->next = tmp;
else
- current_target = t;
+ target_stack = tmp;
+
+ update_current_target ();
+
+ cleanup_target (¤t_target); /* Fill in the gaps */
+
+ if (targetdebug)
+ setup_target_debug ();
- cleanup_target (current_target);
return prev != 0;
}
/* Remove a target_ops vector from the stack, wherever it may be.
- Return how many times it was removed (0 or 1 unless bug). */
+ Return how many times it was removed (0 or 1). */
int
-unpush_target (t)
- struct target_ops *t;
+unpush_target (struct target_ops *t)
{
- struct target_ops *u, *v;
- int result = 0;
+ struct target_stack_item *cur, *prev;
- for (u = current_target, v = 0;
- u;
- v = u, u = u->to_next)
- if (u == t)
- {
- if (v == 0)
- pop_target(); /* unchain top copy */
- else {
- (t->to_close)(0); /* Let it clean up */
- v->to_next = t->to_next; /* unchain middle copy */
- }
- result++;
- }
- return result;
+ 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 (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next)
+ if (cur->target_ops == t)
+ break;
+
+ if (!cur)
+ return 0; /* Didn't find target_ops, quit now */
+
+ /* Unchain the target */
+
+ if (!prev)
+ target_stack = cur->next;
+ else
+ prev->next = cur->next;
+
+ xfree (cur); /* Release the target_stack_item */
+
+ update_current_target ();
+ cleanup_target (¤t_target);
+
+ return 1;
}
void
-pop_target ()
+pop_target (void)
{
- (current_target->to_close)(0); /* Let it clean up */
- current_target = current_target->to_next;
- if (!current_target) /* At bottom, push dummy. */
- push_target (&dummy_target);
+ (current_target.to_close) (0); /* Let it clean up */
+ if (unpush_target (target_stack->target_ops) == 1)
+ return;
+
+ fprintf_unfiltered (gdb_stderr,
+ "pop_target couldn't find target %s\n",
+ current_target.to_shortname);
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
-/* Print things about the whole set of targets and about the
- current target stack. */
-static void
-targets_info ()
+#undef MIN
+#define MIN(A, B) (((A) <= (B)) ? (A) : (B))
+
+/* target_read_string -- read a null terminated string, up to LEN bytes,
+ from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
+ Set *STRING to a pointer to malloc'd memory containing the data; the caller
+ is responsible for freeing it. Return the number of bytes successfully
+ read. */
+
+int
+target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
{
- int i;
+ int tlen, origlen, offset, i;
+ char buf[4];
+ int errcode = 0;
+ char *buffer;
+ int buffer_allocated;
+ char *bufptr;
+ unsigned int nbytes_read = 0;
+
+ /* Small for testing. */
+ buffer_allocated = 4;
+ buffer = xmalloc (buffer_allocated);
+ bufptr = buffer;
+
+ origlen = len;
+
+ while (len > 0)
+ {
+ tlen = MIN (len, 4 - (memaddr & 3));
+ offset = memaddr & 3;
+
+ errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0);
+ if (errcode != 0)
+ {
+ /* The transfer request might have crossed the boundary to an
+ unallocated region of memory. Retry the transfer, requesting
+ a single byte. */
+ tlen = 1;
+ offset = 0;
+ errcode = target_xfer_memory (memaddr, buf, 1, 0);
+ if (errcode != 0)
+ goto done;
+ }
+
+ if (bufptr - buffer + tlen > buffer_allocated)
+ {
+ unsigned int bytes;
+ bytes = bufptr - buffer;
+ buffer_allocated *= 2;
+ buffer = xrealloc (buffer, buffer_allocated);
+ bufptr = buffer + bytes;
+ }
- printf("Possible targets:\n\n");
- for (i = 0; i < target_struct_size; i++)
- printf ("%-15s %s\n",
- target_structs[i]->to_shortname,
- target_structs[i]->to_longname);
+ for (i = 0; i < tlen; i++)
+ {
+ *bufptr++ = buf[i + offset];
+ if (buf[i + offset] == '\000')
+ {
+ nbytes_read += i + 1;
+ goto done;
+ }
+ }
+
+ memaddr += tlen;
+ len -= tlen;
+ nbytes_read += tlen;
+ }
+done:
+ if (errnop != NULL)
+ *errnop = errcode;
+ if (string != NULL)
+ *string = buffer;
+ return nbytes_read;
}
-/* Move memory to or from the targets. Iterate until all of it has
- been moved, if necessary. The top target gets priority; anything
- it doesn't want, is offered to the next one down, etc. Note the
- business with curlen: if an early target says "no, but I have a
- boundary overlapping this xfer" then we shorten what we offer to
- the subsequent targets so the early guy will get a chance at the
- tail before the subsequent ones do.
+/* Read LEN bytes of target memory at address MEMADDR, placing the results in
+ GDB's memory at MYADDR. Returns either 0 for success or an errno value
+ if any error occurs.
- Result is 0 or errno value. */
+ If an error occurs, no guarantee is made about the contents of the data at
+ MYADDR. In particular, the caller should not depend upon partial reads
+ filling the buffer with good data. There is no way for the caller to know
+ how much good data might have been transfered anyway. Callers that can
+ deal with partial reads should call target_read_memory_partial. */
int
-target_read_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+target_read_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
return target_xfer_memory (memaddr, myaddr, len, 0);
}
int
-target_write_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+target_write_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
return target_xfer_memory (memaddr, myaddr, len, 1);
}
-
+
+/* Move memory to or from the targets. The top target gets priority;
+ if it cannot handle it, it is offered to the next one down, etc.
+
+ Result is -1 on error, or the number of bytes transfered. */
+
int
-target_xfer_memory (memaddr, myaddr, len, write)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
+do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
+ struct mem_attrib *attrib)
{
- int curlen;
int res;
+ int done = 0;
struct target_ops *t;
-
- /* The quick case is that the top target does it all. */
- res = current_target->to_xfer_memory(memaddr, myaddr, len, write);
- if (res == len)
+ struct target_stack_item *item;
+
+ /* Zero length requests are ok and require no work. */
+ if (len == 0)
return 0;
- if (res > 0)
- goto bump;
- /* If res <= 0 then we call it again in the loop. Ah well. */
+ /* to_xfer_memory is not guaranteed to set errno, even when it returns
+ 0. */
+ errno = 0;
- for (; len > 0;)
+ /* The quick case is that the top target can handle the transfer. */
+ res = current_target.to_xfer_memory
+ (memaddr, myaddr, len, write, attrib, ¤t_target);
+
+ /* If res <= 0 then we call it again in the loop. Ah well. */
+ if (res <= 0)
{
- curlen = len; /* Want to do it all */
- for (t = current_target;
- t;
- t = t->to_has_all_memory? 0: t->to_next)
+ for (item = target_stack; item; item = item->next)
{
- res = t->to_xfer_memory(memaddr, myaddr, curlen, write);
- if (res > 0) break; /* Handled all or part of xfer */
- if (res == 0) continue; /* Handled none */
- curlen = -res; /* Could handle once we get past res bytes */
+ t = item->target_ops;
+ if (!t->to_has_memory)
+ continue;
+
+ res = t->to_xfer_memory (memaddr, myaddr, len, write, attrib, t);
+ if (res > 0)
+ break; /* Handled all or part of xfer */
+ if (t->to_has_all_memory)
+ break;
}
+
if (res <= 0)
+ return -1;
+ }
+
+ return res;
+}
+
+
+/* Perform a memory transfer. Iterate until the entire region has
+ been transfered.
+
+ Result is 0 or errno value. */
+
+static int
+target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
+{
+ int res;
+ int reg_len;
+ struct mem_region *region;
+
+ /* Zero length requests are ok and require no work. */
+ if (len == 0)
+ {
+ return 0;
+ }
+
+ while (len > 0)
+ {
+ region = lookup_mem_region(memaddr);
+ if (memaddr + len < region->hi)
+ reg_len = len;
+ else
+ reg_len = region->hi - memaddr;
+
+ switch (region->attrib.mode)
{
- /* If this address is for nonexistent memory,
- read zeros if reading, or do nothing if writing. Return error. */
+ case MEM_RO:
+ if (write)
+ return EIO;
+ break;
+
+ case MEM_WO:
if (!write)
- bzero (myaddr, len);
- return EIO;
+ return EIO;
+ break;
+ }
+
+ while (reg_len > 0)
+ {
+ if (region->attrib.cache)
+ res = dcache_xfer_memory(target_dcache, memaddr, myaddr,
+ reg_len, write);
+ else
+ res = do_xfer_memory(memaddr, myaddr, reg_len, write,
+ ®ion->attrib);
+
+ if (res <= 0)
+ {
+ /* If this address is for nonexistent memory, read zeros
+ if reading, or do nothing if writing. Return
+ error. */
+ if (!write)
+ memset (myaddr, 0, len);
+ if (errno == 0)
+ return EIO;
+ else
+ return errno;
+ }
+
+ memaddr += res;
+ myaddr += res;
+ len -= res;
+ reg_len -= res;
}
-bump:
- memaddr += res;
- myaddr += res;
- len -= res;
}
+
return 0; /* We managed to cover it all somehow. */
}
+/* Perform a partial memory transfer.
+
+ Result is -1 on error, or the number of bytes transfered. */
+
+static int
+target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len,
+ int write_p, int *err)
+{
+ int res;
+ int reg_len;
+ struct mem_region *region;
+
+ /* Zero length requests are ok and require no work. */
+ if (len == 0)
+ {
+ *err = 0;
+ return 0;
+ }
+
+ region = lookup_mem_region(memaddr);
+ if (memaddr + len < region->hi)
+ reg_len = len;
+ else
+ reg_len = region->hi - memaddr;
+
+ switch (region->attrib.mode)
+ {
+ case MEM_RO:
+ if (write_p)
+ {
+ *err = EIO;
+ return -1;
+ }
+ break;
+
+ case MEM_WO:
+ if (write_p)
+ {
+ *err = EIO;
+ return -1;
+ }
+ break;
+ }
+
+ if (region->attrib.cache)
+ res = dcache_xfer_memory (target_dcache, memaddr, myaddr,
+ reg_len, write_p);
+ else
+ res = do_xfer_memory (memaddr, myaddr, reg_len, write_p,
+ ®ion->attrib);
+
+ if (res <= 0)
+ {
+ if (errno != 0)
+ *err = errno;
+ else
+ *err = EIO;
+
+ return -1;
+ }
+
+ *err = 0;
+ return res;
+}
+
+int
+target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+{
+ return target_xfer_memory_partial (memaddr, buf, len, 0, err);
+}
+
+int
+target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+{
+ return target_xfer_memory_partial (memaddr, buf, len, 1, err);
+}
+
+/* ARGSUSED */
static void
-target_info (args, from_tty)
- char *args;
- int from_tty;
+target_info (char *args, int from_tty)
{
struct target_ops *t;
+ struct target_stack_item *item;
int has_all_mem = 0;
-
- if (symfile != 0)
- printf ("Symbols from \"%s\".\n", symfile);
+
+ if (symfile_objfile != NULL)
+ printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name);
#ifdef FILES_INFO_HOOK
if (FILES_INFO_HOOK ())
return;
#endif
- for (t = current_target;
- t;
- t = t->to_next)
+ for (item = target_stack; item; item = item->next)
{
- if ((int)(t->to_stratum) <= (int)dummy_stratum)
+ t = item->target_ops;
+
+ if (!t->to_has_memory)
+ continue;
+
+ if ((int) (t->to_stratum) <= (int) dummy_stratum)
continue;
if (has_all_mem)
- printf("\tWhile running this, gdb does not access memory from...\n");
- printf("%s:\n", t->to_longname);
- (t->to_files_info)();
+ printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n");
+ printf_unfiltered ("%s:\n", t->to_longname);
+ (t->to_files_info) (t);
has_all_mem = t->to_has_all_memory;
}
}
-/* The target command selects a target and calls its open routine.
- The open routine takes the rest of the parameters from the command,
- and (if successful) pushes a new target onto the stack. */
+/* This is to be called by the open routine before it does
+ anything. */
-static void
-target_command (args, from_tty)
- char *args;
- int from_tty;
+void
+target_preopen (int from_tty)
{
- int i;
- char *rest;
-
- dont_repeat();
-
- if (!args)
- error (
- "Argument required (target name). `info targets' lists possible targets");
+ dont_repeat ();
if (target_has_execution)
- {
- if (query ("A program is being debugged already. Kill it? "))
- target_kill ((char *)0, from_tty);
- else
- error ("Program not killed.");
- }
-
- /* Skip to first space, or end of args */
- for (rest = args; *rest && !isspace(*rest); rest++) ;
- if (*rest == '\0')
- rest = 0; /* Only one word in args */
- else
{
- *rest = '\0'; /* Terminate first word, scan for next */
- for (rest++; isspace (*rest); rest++) ;
- if (*rest == '\0') /* Only one word w/trailing blanks */
- rest = 0;
+ if (!from_tty
+ || query ("A program is being debugged already. Kill it? "))
+ target_kill ();
+ else
+ error ("Program not killed.");
}
- /* Search target list for a match */
+ /* Calling target_kill may remove the target from the stack. But if
+ it doesn't (which seems like a win for UDI), remove it now. */
- for (i = 0; i < target_struct_size; i++)
- {
- if (!strcmp (args, target_structs[i]->to_shortname))
- goto gotit;
- }
- error ("No such target. `info targets' will list all targets");
+ if (target_has_execution)
+ pop_target ();
+}
+
+/* Detach a target after doing deferred register stores. */
+
+void
+target_detach (char *args, int from_tty)
+{
+ /* Handle any optimized stores to the inferior. */
+#ifdef DO_DEFERRED_STORES
+ DO_DEFERRED_STORES;
+#endif
+ (current_target.to_detach) (args, from_tty);
+}
+
+void
+target_link (char *modname, CORE_ADDR *t_reloc)
+{
+ if (STREQ (current_target.to_shortname, "rombug"))
+ {
+ (current_target.to_lookup_symbol) (modname, t_reloc);
+ if (*t_reloc == 0)
+ error ("Unable to link to %s and get relocation in rombug", modname);
+ }
+ else
+ *t_reloc = (CORE_ADDR) -1;
+}
+
+int
+target_async_mask (int mask)
+{
+ int saved_async_masked_status = target_async_mask_value;
+ target_async_mask_value = mask;
+ return saved_async_masked_status;
+}
+
+/* Look through the list of possible targets for a target that can
+ execute a run or attach command without any other data. This is
+ used to locate the default process stratum.
+
+ Result is always valid (error() is called for errors). */
+
+static struct target_ops *
+find_default_run_target (char *do_mesg)
+{
+ struct target_ops **t;
+ struct target_ops *runable = NULL;
+ int count;
+
+ count = 0;
+
+ for (t = target_structs; t < target_structs + target_struct_size;
+ ++t)
+ {
+ if ((*t)->to_can_run && target_can_run (*t))
+ {
+ runable = *t;
+ ++count;
+ }
+ }
+
+ if (count != 1)
+ error ("Don't know how to %s. Try \"help target\".", do_mesg);
+
+ return runable;
+}
+
+void
+find_default_attach (char *args, int from_tty)
+{
+ struct target_ops *t;
+
+ t = find_default_run_target ("attach");
+ (t->to_attach) (args, from_tty);
+ return;
+}
+
+void
+find_default_require_attach (char *args, int from_tty)
+{
+ struct target_ops *t;
+
+ t = find_default_run_target ("require_attach");
+ (t->to_require_attach) (args, from_tty);
+ return;
+}
+
+void
+find_default_require_detach (int pid, char *args, int from_tty)
+{
+ struct target_ops *t;
+
+ t = find_default_run_target ("require_detach");
+ (t->to_require_detach) (pid, args, from_tty);
+ return;
+}
+
+void
+find_default_create_inferior (char *exec_file, char *allargs, char **env)
+{
+ struct target_ops *t;
+
+ t = find_default_run_target ("run");
+ (t->to_create_inferior) (exec_file, allargs, env);
+ return;
+}
+
+void
+find_default_clone_and_follow_inferior (int child_pid, int *followed_child)
+{
+ struct target_ops *t;
+
+ t = find_default_run_target ("run");
+ (t->to_clone_and_follow_inferior) (child_pid, followed_child);
+ return;
+}
+
+static int
+return_zero (void)
+{
+ return 0;
+}
+
+static int
+return_one (void)
+{
+ return 1;
+}
+
+/*
+ * Resize the to_sections pointer. Also make sure that anyone that
+ * was holding on to an old value of it gets updated.
+ * Returns the old size.
+ */
+
+int
+target_resize_to_sections (struct target_ops *target, int num_added)
+{
+ struct target_ops **t;
+ struct section_table *old_value;
+ int old_count;
+
+ old_value = target->to_sections;
+
+ if (target->to_sections)
+ {
+ old_count = target->to_sections_end - target->to_sections;
+ target->to_sections = (struct section_table *)
+ xrealloc ((char *) target->to_sections,
+ (sizeof (struct section_table)) * (num_added + old_count));
+ }
+ else
+ {
+ old_count = 0;
+ target->to_sections = (struct section_table *)
+ xmalloc ((sizeof (struct section_table)) * num_added);
+ }
+ target->to_sections_end = target->to_sections + (num_added + old_count);
+
+ /* Check to see if anyone else was pointing to this structure.
+ If old_value was null, then no one was. */
+
+ if (old_value)
+ {
+ for (t = target_structs; t < target_structs + target_struct_size;
+ ++t)
+ {
+ if ((*t)->to_sections == old_value)
+ {
+ (*t)->to_sections = target->to_sections;
+ (*t)->to_sections_end = target->to_sections_end;
+ }
+ }
+ }
+
+ return old_count;
+
+}
+
+/* Remove all target sections taken from ABFD.
+
+ Scan the current target stack for targets whose section tables
+ refer to sections from BFD, and remove those sections. We use this
+ when we notice that the inferior has unloaded a shared object, for
+ example. */
+void
+remove_target_sections (bfd *abfd)
+{
+ struct target_ops **t;
+
+ for (t = target_structs; t < target_structs + target_struct_size; t++)
+ {
+ struct section_table *src, *dest;
+
+ dest = (*t)->to_sections;
+ for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++)
+ if (src->bfd != abfd)
+ {
+ /* Keep this section. */
+ if (dest < src) *dest = *src;
+ dest++;
+ }
+
+ /* If we've dropped any sections, resize the section table. */
+ if (dest < src)
+ target_resize_to_sections (*t, dest - src);
+ }
+}
+
+
+
+
+/* Find a single runnable target in the stack and return it. If for
+ some reason there is more than one, return NULL. */
+
+struct target_ops *
+find_run_target (void)
+{
+ struct target_ops **t;
+ struct target_ops *runable = NULL;
+ int count;
+
+ count = 0;
+
+ for (t = target_structs; t < target_structs + target_struct_size; ++t)
+ {
+ if ((*t)->to_can_run && target_can_run (*t))
+ {
+ runable = *t;
+ ++count;
+ }
+ }
+
+ return (count == 1 ? runable : NULL);
+}
+
+/* Find a single core_stratum target in the list of targets and return it.
+ If for some reason there is more than one, return NULL. */
+
+struct target_ops *
+find_core_target (void)
+{
+ struct target_ops **t;
+ struct target_ops *runable = NULL;
+ int count;
+
+ count = 0;
+
+ for (t = target_structs; t < target_structs + target_struct_size;
+ ++t)
+ {
+ if ((*t)->to_stratum == core_stratum)
+ {
+ runable = *t;
+ ++count;
+ }
+ }
+
+ return (count == 1 ? runable : NULL);
+}
+
+/*
+ * Find the next target down the stack from the specified target.
+ */
+
+struct target_ops *
+find_target_beneath (struct target_ops *t)
+{
+ struct target_stack_item *cur;
+
+ for (cur = target_stack; cur; cur = cur->next)
+ if (cur->target_ops == t)
+ break;
+
+ if (cur == NULL || cur->next == NULL)
+ return NULL;
+ else
+ return cur->next->target_ops;
+}
+
+\f
+/* The inferior process has died. Long live the inferior! */
+
+void
+generic_mourn_inferior (void)
+{
+ extern int show_breakpoint_hit_counts;
+
+ inferior_pid = 0;
+ attach_flag = 0;
+ breakpoint_init_inferior (inf_exited);
+ registers_changed ();
+
+#ifdef CLEAR_DEFERRED_STORES
+ /* Delete any pending stores to the inferior... */
+ CLEAR_DEFERRED_STORES;
+#endif
+
+ reopen_exec_file ();
+ reinit_frame_cache ();
+
+ /* It is confusing to the user for ignore counts to stick around
+ from previous runs of the inferior. So clear them. */
+ /* However, it is more confusing for the ignore counts to disappear when
+ using hit counts. So don't clear them if we're counting hits. */
+ if (!show_breakpoint_hit_counts)
+ breakpoint_clear_ignore_counts ();
+
+ if (detach_hook)
+ detach_hook ();
+}
+\f
+/* This table must match in order and size the signals in enum target_signal
+ in target.h. */
+/* *INDENT-OFF* */
+static struct {
+ char *name;
+ char *string;
+ } signals [] =
+{
+ {"0", "Signal 0"},
+ {"SIGHUP", "Hangup"},
+ {"SIGINT", "Interrupt"},
+ {"SIGQUIT", "Quit"},
+ {"SIGILL", "Illegal instruction"},
+ {"SIGTRAP", "Trace/breakpoint trap"},
+ {"SIGABRT", "Aborted"},
+ {"SIGEMT", "Emulation trap"},
+ {"SIGFPE", "Arithmetic exception"},
+ {"SIGKILL", "Killed"},
+ {"SIGBUS", "Bus error"},
+ {"SIGSEGV", "Segmentation fault"},
+ {"SIGSYS", "Bad system call"},
+ {"SIGPIPE", "Broken pipe"},
+ {"SIGALRM", "Alarm clock"},
+ {"SIGTERM", "Terminated"},
+ {"SIGURG", "Urgent I/O condition"},
+ {"SIGSTOP", "Stopped (signal)"},
+ {"SIGTSTP", "Stopped (user)"},
+ {"SIGCONT", "Continued"},
+ {"SIGCHLD", "Child status changed"},
+ {"SIGTTIN", "Stopped (tty input)"},
+ {"SIGTTOU", "Stopped (tty output)"},
+ {"SIGIO", "I/O possible"},
+ {"SIGXCPU", "CPU time limit exceeded"},
+ {"SIGXFSZ", "File size limit exceeded"},
+ {"SIGVTALRM", "Virtual timer expired"},
+ {"SIGPROF", "Profiling timer expired"},
+ {"SIGWINCH", "Window size changed"},
+ {"SIGLOST", "Resource lost"},
+ {"SIGUSR1", "User defined signal 1"},
+ {"SIGUSR2", "User defined signal 2"},
+ {"SIGPWR", "Power fail/restart"},
+ {"SIGPOLL", "Pollable event occurred"},
+ {"SIGWIND", "SIGWIND"},
+ {"SIGPHONE", "SIGPHONE"},
+ {"SIGWAITING", "Process's LWPs are blocked"},
+ {"SIGLWP", "Signal LWP"},
+ {"SIGDANGER", "Swap space dangerously low"},
+ {"SIGGRANT", "Monitor mode granted"},
+ {"SIGRETRACT", "Need to relinquish monitor mode"},
+ {"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"},
+ {"SIGCANCEL", "LWP internal signal"},
+ {"SIG32", "Real-time event 32"},
+ {"SIG64", "Real-time event 64"},
+
+#if defined(MACH) || defined(__MACH__)
+ /* Mach exceptions */
+ {"EXC_BAD_ACCESS", "Could not access memory"},
+ {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"},
+ {"EXC_ARITHMETIC", "Arithmetic exception"},
+ {"EXC_EMULATION", "Emulation instruction"},
+ {"EXC_SOFTWARE", "Software generated exception"},
+ {"EXC_BREAKPOINT", "Breakpoint"},
+#endif
+ {"SIGINFO", "Information request"},
+
+ {NULL, "Unknown signal"},
+ {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
+
+ /* Last entry, used to check whether the table is the right size. */
+ {NULL, "TARGET_SIGNAL_MAGIC"}
+};
+/* *INDENT-ON* */
+
+
+
+/* Return the string for a signal. */
+char *
+target_signal_to_string (enum target_signal sig)
+{
+ if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST))
+ return signals[sig].string;
+ else
+ return signals[TARGET_SIGNAL_UNKNOWN].string;
+}
+
+/* Return the name for a signal. */
+char *
+target_signal_to_name (enum target_signal sig)
+{
+ if (sig == TARGET_SIGNAL_UNKNOWN)
+ /* I think the code which prints this will always print it along with
+ the string, so no need to be verbose. */
+ return "?";
+ return signals[sig].name;
+}
+
+/* Given a name, return its signal. */
+enum target_signal
+target_signal_from_name (char *name)
+{
+ enum target_signal sig;
+
+ /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
+ for TARGET_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 = TARGET_SIGNAL_HUP;
+ signals[sig].name != NULL;
+ sig = (enum target_signal) ((int) sig + 1))
+ if (STREQ (name, signals[sig].name))
+ return sig;
+ return TARGET_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 target_signal
+target_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. */
+
+ if (hostsig == 0)
+ return TARGET_SIGNAL_0;
+
+#if defined (SIGHUP)
+ if (hostsig == SIGHUP)
+ return TARGET_SIGNAL_HUP;
+#endif
+#if defined (SIGINT)
+ if (hostsig == SIGINT)
+ return TARGET_SIGNAL_INT;
+#endif
+#if defined (SIGQUIT)
+ if (hostsig == SIGQUIT)
+ return TARGET_SIGNAL_QUIT;
+#endif
+#if defined (SIGILL)
+ if (hostsig == SIGILL)
+ return TARGET_SIGNAL_ILL;
+#endif
+#if defined (SIGTRAP)
+ if (hostsig == SIGTRAP)
+ return TARGET_SIGNAL_TRAP;
+#endif
+#if defined (SIGABRT)
+ if (hostsig == SIGABRT)
+ return TARGET_SIGNAL_ABRT;
+#endif
+#if defined (SIGEMT)
+ if (hostsig == SIGEMT)
+ return TARGET_SIGNAL_EMT;
+#endif
+#if defined (SIGFPE)
+ if (hostsig == SIGFPE)
+ return TARGET_SIGNAL_FPE;
+#endif
+#if defined (SIGKILL)
+ if (hostsig == SIGKILL)
+ return TARGET_SIGNAL_KILL;
+#endif
+#if defined (SIGBUS)
+ if (hostsig == SIGBUS)
+ return TARGET_SIGNAL_BUS;
+#endif
+#if defined (SIGSEGV)
+ if (hostsig == SIGSEGV)
+ return TARGET_SIGNAL_SEGV;
+#endif
+#if defined (SIGSYS)
+ if (hostsig == SIGSYS)
+ return TARGET_SIGNAL_SYS;
+#endif
+#if defined (SIGPIPE)
+ if (hostsig == SIGPIPE)
+ return TARGET_SIGNAL_PIPE;
+#endif
+#if defined (SIGALRM)
+ if (hostsig == SIGALRM)
+ return TARGET_SIGNAL_ALRM;
+#endif
+#if defined (SIGTERM)
+ if (hostsig == SIGTERM)
+ return TARGET_SIGNAL_TERM;
+#endif
+#if defined (SIGUSR1)
+ if (hostsig == SIGUSR1)
+ return TARGET_SIGNAL_USR1;
+#endif
+#if defined (SIGUSR2)
+ if (hostsig == SIGUSR2)
+ return TARGET_SIGNAL_USR2;
+#endif
+#if defined (SIGCLD)
+ if (hostsig == SIGCLD)
+ return TARGET_SIGNAL_CHLD;
+#endif
+#if defined (SIGCHLD)
+ if (hostsig == SIGCHLD)
+ return TARGET_SIGNAL_CHLD;
+#endif
+#if defined (SIGPWR)
+ if (hostsig == SIGPWR)
+ return TARGET_SIGNAL_PWR;
+#endif
+#if defined (SIGWINCH)
+ if (hostsig == SIGWINCH)
+ return TARGET_SIGNAL_WINCH;
+#endif
+#if defined (SIGURG)
+ if (hostsig == SIGURG)
+ return TARGET_SIGNAL_URG;
+#endif
+#if defined (SIGIO)
+ if (hostsig == SIGIO)
+ return TARGET_SIGNAL_IO;
+#endif
+#if defined (SIGPOLL)
+ if (hostsig == SIGPOLL)
+ return TARGET_SIGNAL_POLL;
+#endif
+#if defined (SIGSTOP)
+ if (hostsig == SIGSTOP)
+ return TARGET_SIGNAL_STOP;
+#endif
+#if defined (SIGTSTP)
+ if (hostsig == SIGTSTP)
+ return TARGET_SIGNAL_TSTP;
+#endif
+#if defined (SIGCONT)
+ if (hostsig == SIGCONT)
+ return TARGET_SIGNAL_CONT;
+#endif
+#if defined (SIGTTIN)
+ if (hostsig == SIGTTIN)
+ return TARGET_SIGNAL_TTIN;
+#endif
+#if defined (SIGTTOU)
+ if (hostsig == SIGTTOU)
+ return TARGET_SIGNAL_TTOU;
+#endif
+#if defined (SIGVTALRM)
+ if (hostsig == SIGVTALRM)
+ return TARGET_SIGNAL_VTALRM;
+#endif
+#if defined (SIGPROF)
+ if (hostsig == SIGPROF)
+ return TARGET_SIGNAL_PROF;
+#endif
+#if defined (SIGXCPU)
+ if (hostsig == SIGXCPU)
+ return TARGET_SIGNAL_XCPU;
+#endif
+#if defined (SIGXFSZ)
+ if (hostsig == SIGXFSZ)
+ return TARGET_SIGNAL_XFSZ;
+#endif
+#if defined (SIGWIND)
+ if (hostsig == SIGWIND)
+ return TARGET_SIGNAL_WIND;
+#endif
+#if defined (SIGPHONE)
+ if (hostsig == SIGPHONE)
+ return TARGET_SIGNAL_PHONE;
+#endif
+#if defined (SIGLOST)
+ if (hostsig == SIGLOST)
+ return TARGET_SIGNAL_LOST;
+#endif
+#if defined (SIGWAITING)
+ if (hostsig == SIGWAITING)
+ return TARGET_SIGNAL_WAITING;
+#endif
+#if defined (SIGCANCEL)
+ if (hostsig == SIGCANCEL)
+ return TARGET_SIGNAL_CANCEL;
+#endif
+#if defined (SIGLWP)
+ if (hostsig == SIGLWP)
+ return TARGET_SIGNAL_LWP;
+#endif
+#if defined (SIGDANGER)
+ if (hostsig == SIGDANGER)
+ return TARGET_SIGNAL_DANGER;
+#endif
+#if defined (SIGGRANT)
+ if (hostsig == SIGGRANT)
+ return TARGET_SIGNAL_GRANT;
+#endif
+#if defined (SIGRETRACT)
+ if (hostsig == SIGRETRACT)
+ return TARGET_SIGNAL_RETRACT;
+#endif
+#if defined (SIGMSG)
+ if (hostsig == SIGMSG)
+ return TARGET_SIGNAL_MSG;
+#endif
+#if defined (SIGSOUND)
+ if (hostsig == SIGSOUND)
+ return TARGET_SIGNAL_SOUND;
+#endif
+#if defined (SIGSAK)
+ if (hostsig == SIGSAK)
+ return TARGET_SIGNAL_SAK;
+#endif
+#if defined (SIGPRIO)
+ if (hostsig == SIGPRIO)
+ return TARGET_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 TARGET_EXC_BAD_ACCESS;
+#endif
+#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
+ if (hostsig == _NSIG + EXC_BAD_INSTRUCTION)
+ return TARGET_EXC_BAD_INSTRUCTION;
+#endif
+#if defined (EXC_ARITHMETIC) && defined (_NSIG)
+ if (hostsig == _NSIG + EXC_ARITHMETIC)
+ return TARGET_EXC_ARITHMETIC;
+#endif
+#if defined (EXC_EMULATION) && defined (_NSIG)
+ if (hostsig == _NSIG + EXC_EMULATION)
+ return TARGET_EXC_EMULATION;
+#endif
+#if defined (EXC_SOFTWARE) && defined (_NSIG)
+ if (hostsig == _NSIG + EXC_SOFTWARE)
+ return TARGET_EXC_SOFTWARE;
+#endif
+#if defined (EXC_BREAKPOINT) && defined (_NSIG)
+ if (hostsig == _NSIG + EXC_BREAKPOINT)
+ return TARGET_EXC_BREAKPOINT;
+#endif
+
+#if defined (SIGINFO)
+ if (hostsig == SIGINFO)
+ return TARGET_SIGNAL_INFO;
+#endif
+
+#if defined (REALTIME_LO)
+ if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
+ {
+ /* This block of TARGET_SIGNAL_REALTIME value is in order. */
+ if (33 <= hostsig && hostsig <= 63)
+ return (enum target_signal)
+ (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
+ else if (hostsig == 32)
+ return TARGET_SIGNAL_REALTIME_32;
+ else
+ error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
+ }
+#endif
+
+#if defined (SIGRTMIN)
+ if (hostsig >= SIGRTMIN && hostsig <= SIGRTMAX)
+ {
+ /* This block of TARGET_SIGNAL_REALTIME value is in order. */
+ if (33 <= hostsig && hostsig <= 63)
+ return (enum target_signal)
+ (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
+ else if (hostsig == 64)
+ return TARGET_SIGNAL_REALTIME_64;
+ else
+ error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
+ }
+#endif
+ return TARGET_SIGNAL_UNKNOWN;
+}
+
+/* Convert a OURSIG (an enum target_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_target_signal_to_host (enum target_signal oursig,
+ int *oursig_ok)
+{
+ *oursig_ok = 1;
+ switch (oursig)
+ {
+ case TARGET_SIGNAL_0:
+ return 0;
+
+#if defined (SIGHUP)
+ case TARGET_SIGNAL_HUP:
+ return SIGHUP;
+#endif
+#if defined (SIGINT)
+ case TARGET_SIGNAL_INT:
+ return SIGINT;
+#endif
+#if defined (SIGQUIT)
+ case TARGET_SIGNAL_QUIT:
+ return SIGQUIT;
+#endif
+#if defined (SIGILL)
+ case TARGET_SIGNAL_ILL:
+ return SIGILL;
+#endif
+#if defined (SIGTRAP)
+ case TARGET_SIGNAL_TRAP:
+ return SIGTRAP;
+#endif
+#if defined (SIGABRT)
+ case TARGET_SIGNAL_ABRT:
+ return SIGABRT;
+#endif
+#if defined (SIGEMT)
+ case TARGET_SIGNAL_EMT:
+ return SIGEMT;
+#endif
+#if defined (SIGFPE)
+ case TARGET_SIGNAL_FPE:
+ return SIGFPE;
+#endif
+#if defined (SIGKILL)
+ case TARGET_SIGNAL_KILL:
+ return SIGKILL;
+#endif
+#if defined (SIGBUS)
+ case TARGET_SIGNAL_BUS:
+ return SIGBUS;
+#endif
+#if defined (SIGSEGV)
+ case TARGET_SIGNAL_SEGV:
+ return SIGSEGV;
+#endif
+#if defined (SIGSYS)
+ case TARGET_SIGNAL_SYS:
+ return SIGSYS;
+#endif
+#if defined (SIGPIPE)
+ case TARGET_SIGNAL_PIPE:
+ return SIGPIPE;
+#endif
+#if defined (SIGALRM)
+ case TARGET_SIGNAL_ALRM:
+ return SIGALRM;
+#endif
+#if defined (SIGTERM)
+ case TARGET_SIGNAL_TERM:
+ return SIGTERM;
+#endif
+#if defined (SIGUSR1)
+ case TARGET_SIGNAL_USR1:
+ return SIGUSR1;
+#endif
+#if defined (SIGUSR2)
+ case TARGET_SIGNAL_USR2:
+ return SIGUSR2;
+#endif
+#if defined (SIGCHLD) || defined (SIGCLD)
+ case TARGET_SIGNAL_CHLD:
+#if defined (SIGCHLD)
+ return SIGCHLD;
+#else
+ return SIGCLD;
+#endif
+#endif /* SIGCLD or SIGCHLD */
+#if defined (SIGPWR)
+ case TARGET_SIGNAL_PWR:
+ return SIGPWR;
+#endif
+#if defined (SIGWINCH)
+ case TARGET_SIGNAL_WINCH:
+ return SIGWINCH;
+#endif
+#if defined (SIGURG)
+ case TARGET_SIGNAL_URG:
+ return SIGURG;
+#endif
+#if defined (SIGIO)
+ case TARGET_SIGNAL_IO:
+ return SIGIO;
+#endif
+#if defined (SIGPOLL)
+ case TARGET_SIGNAL_POLL:
+ return SIGPOLL;
+#endif
+#if defined (SIGSTOP)
+ case TARGET_SIGNAL_STOP:
+ return SIGSTOP;
+#endif
+#if defined (SIGTSTP)
+ case TARGET_SIGNAL_TSTP:
+ return SIGTSTP;
+#endif
+#if defined (SIGCONT)
+ case TARGET_SIGNAL_CONT:
+ return SIGCONT;
+#endif
+#if defined (SIGTTIN)
+ case TARGET_SIGNAL_TTIN:
+ return SIGTTIN;
+#endif
+#if defined (SIGTTOU)
+ case TARGET_SIGNAL_TTOU:
+ return SIGTTOU;
+#endif
+#if defined (SIGVTALRM)
+ case TARGET_SIGNAL_VTALRM:
+ return SIGVTALRM;
+#endif
+#if defined (SIGPROF)
+ case TARGET_SIGNAL_PROF:
+ return SIGPROF;
+#endif
+#if defined (SIGXCPU)
+ case TARGET_SIGNAL_XCPU:
+ return SIGXCPU;
+#endif
+#if defined (SIGXFSZ)
+ case TARGET_SIGNAL_XFSZ:
+ return SIGXFSZ;
+#endif
+#if defined (SIGWIND)
+ case TARGET_SIGNAL_WIND:
+ return SIGWIND;
+#endif
+#if defined (SIGPHONE)
+ case TARGET_SIGNAL_PHONE:
+ return SIGPHONE;
+#endif
+#if defined (SIGLOST)
+ case TARGET_SIGNAL_LOST:
+ return SIGLOST;
+#endif
+#if defined (SIGWAITING)
+ case TARGET_SIGNAL_WAITING:
+ return SIGWAITING;
+#endif
+#if defined (SIGCANCEL)
+ case TARGET_SIGNAL_CANCEL:
+ return SIGCANCEL;
+#endif
+#if defined (SIGLWP)
+ case TARGET_SIGNAL_LWP:
+ return SIGLWP;
+#endif
+#if defined (SIGDANGER)
+ case TARGET_SIGNAL_DANGER:
+ return SIGDANGER;
+#endif
+#if defined (SIGGRANT)
+ case TARGET_SIGNAL_GRANT:
+ return SIGGRANT;
+#endif
+#if defined (SIGRETRACT)
+ case TARGET_SIGNAL_RETRACT:
+ return SIGRETRACT;
+#endif
+#if defined (SIGMSG)
+ case TARGET_SIGNAL_MSG:
+ return SIGMSG;
+#endif
+#if defined (SIGSOUND)
+ case TARGET_SIGNAL_SOUND:
+ return SIGSOUND;
+#endif
+#if defined (SIGSAK)
+ case TARGET_SIGNAL_SAK:
+ return SIGSAK;
+#endif
+#if defined (SIGPRIO)
+ case TARGET_SIGNAL_PRIO:
+ return SIGPRIO;
+#endif
+
+ /* Mach exceptions. Assumes that the values for EXC_ are positive! */
+#if defined (EXC_BAD_ACCESS) && defined (_NSIG)
+ case TARGET_EXC_BAD_ACCESS:
+ return _NSIG + EXC_BAD_ACCESS;
+#endif
+#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
+ case TARGET_EXC_BAD_INSTRUCTION:
+ return _NSIG + EXC_BAD_INSTRUCTION;
+#endif
+#if defined (EXC_ARITHMETIC) && defined (_NSIG)
+ case TARGET_EXC_ARITHMETIC:
+ return _NSIG + EXC_ARITHMETIC;
+#endif
+#if defined (EXC_EMULATION) && defined (_NSIG)
+ case TARGET_EXC_EMULATION:
+ return _NSIG + EXC_EMULATION;
+#endif
+#if defined (EXC_SOFTWARE) && defined (_NSIG)
+ case TARGET_EXC_SOFTWARE:
+ return _NSIG + EXC_SOFTWARE;
+#endif
+#if defined (EXC_BREAKPOINT) && defined (_NSIG)
+ case TARGET_EXC_BREAKPOINT:
+ return _NSIG + EXC_BREAKPOINT;
+#endif
+
+#if defined (SIGINFO)
+ case TARGET_SIGNAL_INFO:
+ return SIGINFO;
+#endif
+
+ default:
+#if defined (REALTIME_LO)
+ if (oursig >= TARGET_SIGNAL_REALTIME_33
+ && oursig <= TARGET_SIGNAL_REALTIME_63)
+ {
+ /* This block of signals is continuous, and
+ TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
+ int retsig =
+ (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
+ if (retsig >= REALTIME_LO && retsig < REALTIME_HI)
+ return retsig;
+ }
+#if (REALTIME_LO < 33)
+ else if (oursig == TARGET_SIGNAL_REALTIME_32)
+ {
+ /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with
+ TARGET_SIGNAL_REALTIME_33. It is 32 by definition. */
+ return 32;
+ }
+#endif
+#endif
+
+#if defined (SIGRTMIN)
+ if (oursig >= TARGET_SIGNAL_REALTIME_33
+ && oursig <= TARGET_SIGNAL_REALTIME_63)
+ {
+ /* This block of signals is continuous, and
+ TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
+ int retsig =
+ (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
+ if (retsig >= SIGRTMIN && retsig <= SIGRTMAX)
+ return retsig;
+ }
+ else if (oursig == TARGET_SIGNAL_REALTIME_64)
+ return 64;
+#endif
+ *oursig_ok = 0;
+ return 0;
+ }
+}
+
+int
+target_signal_to_host_p (enum target_signal oursig)
+{
+ int oursig_ok;
+ do_target_signal_to_host (oursig, &oursig_ok);
+ return oursig_ok;
+}
+
+int
+target_signal_to_host (enum target_signal oursig)
+{
+ int oursig_ok;
+ int targ_signo = do_target_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.\n",
+ target_signal_to_name (oursig));
+ return 0;
+ }
+ else
+ return targ_signo;
+}
+
+/* Helper function for child_wait and the Lynx derivatives of child_wait.
+ HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
+ translation of that in OURSTATUS. */
+void
+store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
+{
+#ifdef CHILD_SPECIAL_WAITSTATUS
+ /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
+ if it wants to deal with hoststatus. */
+ if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus))
+ return;
+#endif
+
+ if (WIFEXITED (hoststatus))
+ {
+ ourstatus->kind = TARGET_WAITKIND_EXITED;
+ ourstatus->value.integer = WEXITSTATUS (hoststatus);
+ }
+ else if (!WIFSTOPPED (hoststatus))
+ {
+ ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
+ ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
+ }
+ else
+ {
+ ourstatus->kind = TARGET_WAITKIND_STOPPED;
+ 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 obsolescent. 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 (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) (void);
+int target_activity_fd;
+\f
+/* Convert a normal process ID to a string. Returns the string in a static
+ buffer. */
+
+char *
+normal_pid_to_str (int pid)
+{
+ static char buf[30];
+
+ if (STREQ (current_target.to_shortname, "remote"))
+ sprintf (buf, "thread %d", pid);
+ else
+ sprintf (buf, "process %d", pid);
+
+ return buf;
+}
+
+/* Some targets (such as ttrace-based HPUX) don't allow us to request
+ notification of inferior events such as fork and vork immediately
+ after the inferior is created. (This because of how gdb gets an
+ inferior created via invoking a shell to do it. In such a scenario,
+ if the shell init file has commands in it, the shell will fork and
+ exec for each of those commands, and we will see each such fork
+ event. Very bad.)
+
+ This function is used by all targets that allow us to request
+ notification of forks, etc at inferior creation time; e.g., in
+ target_acknowledge_forked_child.
+ */
+static void
+normal_target_post_startup_inferior (int pid)
+{
+ /* This space intentionally left blank. */
+}
+
+/* Set up the handful of non-empty slots needed by the dummy target
+ vector. */
+
+static void
+init_dummy_target (void)
+{
+ dummy_target.to_shortname = "None";
+ dummy_target.to_longname = "None";
+ dummy_target.to_doc = "";
+ dummy_target.to_attach = find_default_attach;
+ dummy_target.to_require_attach = find_default_require_attach;
+ dummy_target.to_require_detach = find_default_require_detach;
+ dummy_target.to_create_inferior = find_default_create_inferior;
+ dummy_target.to_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
+ dummy_target.to_pid_to_str = normal_pid_to_str;
+ dummy_target.to_stratum = dummy_stratum;
+ dummy_target.to_magic = OPS_MAGIC;
+}
+\f
+
+static struct target_ops debug_target;
+
+static void
+debug_to_open (char *args, int from_tty)
+{
+ debug_target.to_open (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_close (int quitting)
+{
+ debug_target.to_close (quitting);
+
+ fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
+}
+
+static void
+debug_to_attach (char *args, int from_tty)
+{
+ debug_target.to_attach (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty);
+}
+
+
+static void
+debug_to_post_attach (int pid)
+{
+ debug_target.to_post_attach (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
+}
+
+static void
+debug_to_require_attach (char *args, int from_tty)
+{
+ debug_target.to_require_attach (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_require_attach (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_detach (char *args, int from_tty)
+{
+ debug_target.to_detach (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_require_detach (int pid, char *args, int from_tty)
+{
+ debug_target.to_require_detach (pid, args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_require_detach (%d, %s, %d)\n", pid, args, from_tty);
+}
+
+static void
+debug_to_resume (int pid, int step, enum target_signal siggnal)
+{
+ debug_target.to_resume (pid, step, siggnal);
+
+ fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", pid,
+ step ? "step" : "continue",
+ target_signal_to_name (siggnal));
+}
+
+static int
+debug_to_wait (int pid, struct target_waitstatus *status)
+{
+ int retval;
+
+ retval = debug_target.to_wait (pid, status);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_wait (%d, status) = %d, ", pid, retval);
+ fprintf_unfiltered (gdb_stdlog, "status->kind = ");
+ switch (status->kind)
+ {
+ case TARGET_WAITKIND_EXITED:
+ fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n",
+ status->value.integer);
+ break;
+ case TARGET_WAITKIND_STOPPED:
+ fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n",
+ target_signal_to_name (status->value.sig));
+ break;
+ case TARGET_WAITKIND_SIGNALLED:
+ fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n",
+ target_signal_to_name (status->value.sig));
+ break;
+ case TARGET_WAITKIND_LOADED:
+ fprintf_unfiltered (gdb_stdlog, "loaded\n");
+ break;
+ case TARGET_WAITKIND_FORKED:
+ fprintf_unfiltered (gdb_stdlog, "forked\n");
+ break;
+ case TARGET_WAITKIND_VFORKED:
+ fprintf_unfiltered (gdb_stdlog, "vforked\n");
+ break;
+ case TARGET_WAITKIND_EXECD:
+ fprintf_unfiltered (gdb_stdlog, "execd\n");
+ break;
+ case TARGET_WAITKIND_SPURIOUS:
+ fprintf_unfiltered (gdb_stdlog, "spurious\n");
+ break;
+ default:
+ fprintf_unfiltered (gdb_stdlog, "unknown???\n");
+ break;
+ }
+
+ return retval;
+}
+
+static void
+debug_to_post_wait (int pid, int status)
+{
+ debug_target.to_post_wait (pid, status);
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_wait (%d, %d)\n",
+ pid, status);
+}
+
+static void
+debug_to_fetch_registers (int regno)
+{
+ debug_target.to_fetch_registers (regno);
+
+ fprintf_unfiltered (gdb_stdlog, "target_fetch_registers (%s)",
+ regno != -1 ? REGISTER_NAME (regno) : "-1");
+ if (regno != -1)
+ fprintf_unfiltered (gdb_stdlog, " = 0x%lx %ld",
+ (unsigned long) read_register (regno),
+ (unsigned long) read_register (regno));
+ fprintf_unfiltered (gdb_stdlog, "\n");
+}
+
+static void
+debug_to_store_registers (int regno)
+{
+ debug_target.to_store_registers (regno);
+
+ if (regno >= 0 && regno < NUM_REGS)
+ fprintf_unfiltered (gdb_stdlog, "target_store_registers (%s) = 0x%lx %ld\n",
+ REGISTER_NAME (regno),
+ (unsigned long) read_register (regno),
+ (unsigned long) read_register (regno));
+ else
+ fprintf_unfiltered (gdb_stdlog, "target_store_registers (%d)\n", regno);
+}
+
+static void
+debug_to_prepare_to_store (void)
+{
+ debug_target.to_prepare_to_store ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n");
+}
+
+static int
+debug_to_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
+ struct mem_attrib *attrib,
+ struct target_ops *target)
+{
+ int retval;
+
+ retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write,
+ attrib, target);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
+ (unsigned int) memaddr, /* possable truncate long long */
+ len, write ? "write" : "read", retval);
+
+
+
+ if (retval > 0)
+ {
+ int i;
+
+ fputs_unfiltered (", bytes =", gdb_stdlog);
+ for (i = 0; i < retval; i++)
+ {
+ if ((((long) &(myaddr[i])) & 0xf) == 0)
+ fprintf_unfiltered (gdb_stdlog, "\n");
+ fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
+ }
+ }
+
+ fputc_unfiltered ('\n', gdb_stdlog);
+
+ return retval;
+}
+
+static void
+debug_to_files_info (struct target_ops *target)
+{
+ debug_target.to_files_info (target);
+
+ fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n");
+}
+
+static int
+debug_to_insert_breakpoint (CORE_ADDR addr, char *save)
+{
+ int retval;
+
+ retval = debug_target.to_insert_breakpoint (addr, save);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
+ (unsigned long) addr,
+ (unsigned long) retval);
+ return retval;
+}
+
+static int
+debug_to_remove_breakpoint (CORE_ADDR addr, char *save)
+{
+ int retval;
+
+ retval = debug_target.to_remove_breakpoint (addr, save);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
+ (unsigned long) addr,
+ (unsigned long) retval);
+ return retval;
+}
+
+static void
+debug_to_terminal_init (void)
+{
+ debug_target.to_terminal_init ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
+}
+
+static void
+debug_to_terminal_inferior (void)
+{
+ debug_target.to_terminal_inferior ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
+}
+
+static void
+debug_to_terminal_ours_for_output (void)
+{
+ debug_target.to_terminal_ours_for_output ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
+}
+
+static void
+debug_to_terminal_ours (void)
+{
+ debug_target.to_terminal_ours ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
+}
+
+static void
+debug_to_terminal_info (char *arg, int from_tty)
+{
+ debug_target.to_terminal_info (arg, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
+ from_tty);
+}
+
+static void
+debug_to_kill (void)
+{
+ debug_target.to_kill ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_kill ()\n");
+}
+
+static void
+debug_to_load (char *args, int from_tty)
+{
+ debug_target.to_load (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
+}
+
+static int
+debug_to_lookup_symbol (char *name, CORE_ADDR *addrp)
+{
+ int retval;
+
+ retval = debug_target.to_lookup_symbol (name, addrp);
+
+ fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
+
+ return retval;
+}
+
+static void
+debug_to_create_inferior (char *exec_file, char *args, char **env)
+{
+ debug_target.to_create_inferior (exec_file, args, env);
+
+ fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx)\n",
+ exec_file, args);
+}
+
+static void
+debug_to_post_startup_inferior (int pid)
+{
+ debug_target.to_post_startup_inferior (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
+ pid);
+}
+
+static void
+debug_to_acknowledge_created_inferior (int pid)
+{
+ debug_target.to_acknowledge_created_inferior (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
+ pid);
+}
+
+static void
+debug_to_clone_and_follow_inferior (int child_pid, int *followed_child)
+{
+ debug_target.to_clone_and_follow_inferior (child_pid, followed_child);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_clone_and_follow_inferior (%d, %d)\n",
+ child_pid, *followed_child);
+}
+
+static void
+debug_to_post_follow_inferior_by_clone (void)
+{
+ debug_target.to_post_follow_inferior_by_clone ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_follow_inferior_by_clone ()\n");
+}
+
+static int
+debug_to_insert_fork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_insert_fork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_remove_fork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_remove_fork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_insert_vfork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_insert_vfork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_remove_vfork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_remove_vfork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_has_forked (int pid, int *child_pid)
+{
+ int has_forked;
+
+ has_forked = debug_target.to_has_forked (pid, child_pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_has_forked (%d, %d) = %d\n",
+ pid, *child_pid, has_forked);
+
+ return has_forked;
+}
+
+static int
+debug_to_has_vforked (int pid, int *child_pid)
+{
+ int has_vforked;
+
+ has_vforked = debug_target.to_has_vforked (pid, child_pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_has_vforked (%d, %d) = %d\n",
+ pid, *child_pid, has_vforked);
+
+ return has_vforked;
+}
+
+static int
+debug_to_can_follow_vfork_prior_to_exec (void)
+{
+ int can_immediately_follow_vfork;
+
+ can_immediately_follow_vfork = debug_target.to_can_follow_vfork_prior_to_exec ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_can_follow_vfork_prior_to_exec () = %d\n",
+ can_immediately_follow_vfork);
+
+ return can_immediately_follow_vfork;
+}
+
+static void
+debug_to_post_follow_vfork (int parent_pid, int followed_parent, int child_pid,
+ int followed_child)
+{
+ debug_target.to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_post_follow_vfork (%d, %d, %d, %d)\n",
+ parent_pid, followed_parent, child_pid, followed_child);
+}
+
+static int
+debug_to_insert_exec_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_insert_exec_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_remove_exec_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_remove_exec_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_has_execd (int pid, char **execd_pathname)
+{
+ int has_execd;
+
+ has_execd = debug_target.to_has_execd (pid, execd_pathname);
+
+ fprintf_unfiltered (gdb_stdlog, "target_has_execd (%d, %s) = %d\n",
+ pid, (*execd_pathname ? *execd_pathname : "<NULL>"),
+ has_execd);
+
+ return has_execd;
+}
+
+static int
+debug_to_reported_exec_events_per_exec_call (void)
+{
+ int reported_exec_events;
+
+ reported_exec_events = debug_target.to_reported_exec_events_per_exec_call ();
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_reported_exec_events_per_exec_call () = %d\n",
+ reported_exec_events);
+
+ return reported_exec_events;
+}
+
+static int
+debug_to_has_syscall_event (int pid, enum target_waitkind *kind,
+ int *syscall_id)
+{
+ int has_syscall_event;
+ char *kind_spelling = "??";
+
+ has_syscall_event = debug_target.to_has_syscall_event (pid, kind, syscall_id);
+ if (has_syscall_event)
+ {
+ switch (*kind)
+ {
+ case TARGET_WAITKIND_SYSCALL_ENTRY:
+ kind_spelling = "SYSCALL_ENTRY";
+ break;
+ case TARGET_WAITKIND_SYSCALL_RETURN:
+ kind_spelling = "SYSCALL_RETURN";
+ break;
+ default:
+ break;
+ }
+ }
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_has_syscall_event (%d, %s, %d) = %d\n",
+ pid, kind_spelling, *syscall_id, has_syscall_event);
+
+ return has_syscall_event;
+}
+
+static int
+debug_to_has_exited (int pid, int wait_status, int *exit_status)
+{
+ int has_exited;
+
+ has_exited = debug_target.to_has_exited (pid, wait_status, exit_status);
+
+ fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n",
+ pid, wait_status, *exit_status, has_exited);
+
+ return has_exited;
+}
+
+static void
+debug_to_mourn_inferior (void)
+{
+ debug_target.to_mourn_inferior ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n");
+}
+
+static int
+debug_to_can_run (void)
+{
+ int retval;
+
+ retval = debug_target.to_can_run ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval);
+
+ return retval;
+}
+
+static void
+debug_to_notice_signals (int pid)
+{
+ debug_target.to_notice_signals (pid);
-gotit:
- (*target_structs[i]->to_open) (rest, from_tty);
+ fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", pid);
}
-static char targ_desc[] =
- "Names of targets and files being debugged.\n\
+static int
+debug_to_thread_alive (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_thread_alive (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static void
+debug_to_find_new_threads (void)
+{
+ debug_target.to_find_new_threads ();
+
+ fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog);
+}
+
+static void
+debug_to_stop (void)
+{
+ debug_target.to_stop ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_stop ()\n");
+}
+
+static int
+debug_to_query (int type, char *req, char *resp, int *siz)
+{
+ int retval;
+
+ retval = debug_target.to_query (type, req, resp, siz);
+
+ fprintf_unfiltered (gdb_stdlog, "target_query (%c, %s, %s, %d) = %d\n", type, req, resp, *siz, retval);
+
+ return retval;
+}
+
+static void
+debug_to_rcmd (char *command,
+ struct ui_file *outbuf)
+{
+ debug_target.to_rcmd (command, outbuf);
+ fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command);
+}
+
+static struct symtab_and_line *
+debug_to_enable_exception_callback (enum exception_event_kind kind, int enable)
+{
+ struct symtab_and_line *result;
+ result = debug_target.to_enable_exception_callback (kind, enable);
+ fprintf_unfiltered (gdb_stdlog,
+ "target get_exception_callback_sal (%d, %d)\n",
+ kind, enable);
+ return result;
+}
+
+static struct exception_event_record *
+debug_to_get_current_exception_event (void)
+{
+ struct exception_event_record *result;
+ result = debug_target.to_get_current_exception_event ();
+ fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n");
+ return result;
+}
+
+static char *
+debug_to_pid_to_exec_file (int pid)
+{
+ char *exec_file;
+
+ exec_file = debug_target.to_pid_to_exec_file (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n",
+ pid, exec_file);
+
+ return exec_file;
+}
+
+static char *
+debug_to_core_file_to_sym_file (char *core)
+{
+ char *sym_file;
+
+ sym_file = debug_target.to_core_file_to_sym_file (core);
+
+ fprintf_unfiltered (gdb_stdlog, "target_core_file_to_sym_file (%s) = %s\n",
+ core, sym_file);
+
+ return sym_file;
+}
+
+static void
+setup_target_debug (void)
+{
+ 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_post_attach = debug_to_post_attach;
+ current_target.to_require_attach = debug_to_require_attach;
+ current_target.to_detach = debug_to_detach;
+ current_target.to_require_detach = debug_to_require_detach;
+ current_target.to_resume = debug_to_resume;
+ current_target.to_wait = debug_to_wait;
+ current_target.to_post_wait = debug_to_post_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_post_startup_inferior = debug_to_post_startup_inferior;
+ current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior;
+ current_target.to_clone_and_follow_inferior = debug_to_clone_and_follow_inferior;
+ current_target.to_post_follow_inferior_by_clone = debug_to_post_follow_inferior_by_clone;
+ current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint;
+ current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint;
+ current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint;
+ current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint;
+ current_target.to_has_forked = debug_to_has_forked;
+ current_target.to_has_vforked = debug_to_has_vforked;
+ current_target.to_can_follow_vfork_prior_to_exec = debug_to_can_follow_vfork_prior_to_exec;
+ current_target.to_post_follow_vfork = debug_to_post_follow_vfork;
+ current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint;
+ current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint;
+ current_target.to_has_execd = debug_to_has_execd;
+ current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call;
+ current_target.to_has_syscall_event = debug_to_has_syscall_event;
+ current_target.to_has_exited = debug_to_has_exited;
+ 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_find_new_threads = debug_to_find_new_threads;
+ current_target.to_stop = debug_to_stop;
+ current_target.to_query = debug_to_query;
+ current_target.to_rcmd = debug_to_rcmd;
+ current_target.to_enable_exception_callback = debug_to_enable_exception_callback;
+ current_target.to_get_current_exception_event = debug_to_get_current_exception_event;
+ current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file;
+ current_target.to_core_file_to_sym_file = debug_to_core_file_to_sym_file;
+
+}
+\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\
core-file, and process, if any), as well as the symbol file name.";
-void
-_initialize_targets ()
+static void
+do_monitor_command (char *cmd,
+ int from_tty)
{
- current_target = &dummy_target;
- cleanup_target (current_target);
+ if ((current_target.to_rcmd
+ == (void (*) (char *, struct ui_file *)) tcomplain)
+ || (current_target.to_rcmd == debug_to_rcmd
+ && (debug_target.to_rcmd
+ == (void (*) (char *, struct ui_file *)) tcomplain)))
+ {
+ error ("\"monitor\" command not supported by this target.\n");
+ }
+ target_rcmd (cmd, gdb_stdtarg);
+}
- add_info ("targets", targets_info,
- "Names of all possible targets.\n\
-A target is typically a protocol for talking to debugging facilities;\n\
-for example, `child' for Unix child processes, or `vxworks' for a\n\
-TCP/IP link to a VxWorks system.");
+void
+initialize_targets (void)
+{
+ init_dummy_target ();
+ push_target (&dummy_target);
add_info ("target", target_info, targ_desc);
add_info ("files", target_info, targ_desc);
- add_com ("target", class_run, target_command,
-"Connect to a target machine or process.\n\
-The first argument is the type or protocol of the target machine. Remaining\n\
-arguments are interpreted by the target protocol, but typically include\n\
-things like device names or host names to connect with, process numbers,\n\
-baud rates, etc. You can list all possible targets with the `info targets'\n\
-command.");
+ add_show_from_set (
+ add_set_cmd ("target", class_maintenance, var_zinteger,
+ (char *) &targetdebug,
+ "Set target debugging.\n\
+When non-zero, target debugging is enabled.", &setdebuglist),
+ &showdebuglist);
+
+
+ add_com ("monitor", class_obscure, do_monitor_command,
+ "Send a command to the remote monitor (remote targets only).");
+
+ target_dcache = dcache_init();
+
+ if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
projects / binutils.git / blobdiff