/* Select target systems and architectures at runtime for GDB.
- Copyright 1990, 1992-1995, 1998-2000 Free Software Foundation, Inc.
+
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Free Software Foundation, Inc.
+
Contributed by Cygnus Support.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include <errno.h>
-#include <ctype.h>
#include "gdb_string.h"
#include "target.h"
#include "gdbcmd.h"
#include "symfile.h"
#include "objfiles.h"
#include "gdb_wait.h"
+#include "dcache.h"
#include <signal.h>
-
-extern int errno;
+#include "regcache.h"
+#include "gdb_assert.h"
+#include "gdbcore.h"
+#include "exceptions.h"
+#include "target-descriptions.h"
+#include "gdbthread.h"
+#include "solib.h"
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 default_watchpoint_addr_within_range (struct target_ops *,
+ CORE_ADDR, CORE_ADDR, int);
+
+static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int);
+
static int nosymbol (char *, CORE_ADDR *);
-static void tcomplain (void);
+static void tcomplain (void) ATTR_NORETURN;
static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
static int return_one (void);
+static int return_minus_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);
+static LONGEST default_xfer_partial (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, LONGEST len);
-/* 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 LONGEST current_xfer_partial (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf,
+ ULONGEST offset, LONGEST len);
-static int
-target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write);
+static LONGEST target_xfer_partial (struct target_ops *ops,
+ enum target_object object,
+ const char *annex,
+ void *readbuf, const void *writebuf,
+ ULONGEST offset, LONGEST len);
static void init_dummy_target (void);
+static struct target_ops debug_target;
+
static void debug_to_open (char *, int);
static void debug_to_close (int);
static void debug_to_detach (char *, int);
-static void debug_to_resume (int, int, enum target_signal);
+static void debug_to_resume (ptid_t, int, enum target_signal);
-static int debug_to_wait (int, struct target_waitstatus *);
+static ptid_t debug_to_wait (ptid_t, struct target_waitstatus *);
-static void debug_to_fetch_registers (int);
+static void debug_to_fetch_registers (struct regcache *, int);
-static void debug_to_store_registers (int);
+static void debug_to_store_registers (struct regcache *, int);
-static void debug_to_prepare_to_store (void);
-
-static int
-debug_to_xfer_memory (CORE_ADDR, char *, int, int, struct target_ops *);
+static void debug_to_prepare_to_store (struct regcache *);
static void debug_to_files_info (struct target_ops *);
-static int debug_to_insert_breakpoint (CORE_ADDR, char *);
+static int debug_to_insert_breakpoint (struct bp_target_info *);
-static int debug_to_remove_breakpoint (CORE_ADDR, char *);
+static int debug_to_remove_breakpoint (struct bp_target_info *);
+
+static int debug_to_can_use_hw_breakpoint (int, int, int);
+
+static int debug_to_insert_hw_breakpoint (struct bp_target_info *);
+
+static int debug_to_remove_hw_breakpoint (struct bp_target_info *);
+
+static int debug_to_insert_watchpoint (CORE_ADDR, int, int);
+
+static int debug_to_remove_watchpoint (CORE_ADDR, int, int);
+
+static int debug_to_stopped_by_watchpoint (void);
+
+static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *);
+
+static int debug_to_watchpoint_addr_within_range (struct target_ops *,
+ CORE_ADDR, CORE_ADDR, int);
+
+static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int);
static void debug_to_terminal_init (void);
static void debug_to_terminal_ours_for_output (void);
+static void debug_to_terminal_save_ours (void);
+
static void debug_to_terminal_ours (void);
static void debug_to_terminal_info (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 void debug_to_notice_signals (ptid_t);
-static int debug_to_thread_alive (int);
+static int debug_to_thread_alive (ptid_t);
-static void debug_to_stop (void);
+static void debug_to_stop (ptid_t);
-static int debug_to_query (int /*char */ , char *, char *, int *);
+/* NOTE: cagney/2004-09-29: Many targets reference this variable in
+ wierd and mysterious ways. Putting the variable here lets those
+ wierd and mysterious ways keep building while they are being
+ converted to the inferior inheritance structure. */
+struct target_ops deprecated_child_ops;
/* Pointer to array of target architecture structures; the size of the
- array; the current index into the array; the allocated size of the
+ array; the current index into the array; the allocated size of the
array. */
struct target_ops **target_structs;
unsigned target_struct_size;
/* Top of target stack. */
-struct target_stack_item *target_stack;
+static struct target_ops *target_stack;
/* The target structure we are currently using to talk to a process
or file or whatever "inferior" we have. */
int attach_flag;
+/* Nonzero if we should trust readonly sections from the
+ executable when reading memory. */
+
+static int trust_readonly = 0;
+
+/* Nonzero if we should show true memory content including
+ memory breakpoint inserted by gdb. */
+
+static int show_memory_breakpoints = 0;
+
/* Non-zero if we want to see trace of target level stuff. */
static int targetdebug = 0;
+static void
+show_targetdebug (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Target debugging is %s.\n"), value);
+}
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 (arg, from_tty)
- char *arg;
- int from_tty;
+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)
{
+ /* Provide default values for all "must have" methods. */
+ if (t->to_xfer_partial == NULL)
+ t->to_xfer_partial = default_xfer_partial;
+
if (!target_structs)
{
target_struct_allocsize = DEFAULT_ALLOCSIZE;
target_struct_allocsize * sizeof (*target_structs));
}
target_structs[target_struct_size++] = t;
-/* cleanup_target (t); */
if (targetlist == NULL)
- add_prefix_cmd ("target", class_run, target_command,
- "Connect to a target machine or process.\n\
+ 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.",
+`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 */
void
-target_ignore ()
+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, t)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- struct target_ops *t;
+nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write,
+ struct target_ops *t)
{
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'",
+ error (_("You can't do that when your target is `%s'"),
current_target.to_shortname);
}
void
-noprocess ()
+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 */
}
-/* ARGSUSED */
static void
-nosupport_runtime ()
+nosupport_runtime (void)
{
- if (!inferior_pid)
+ if (ptid_equal (inferior_ptid, null_ptid))
noprocess ();
else
- error ("No run-time support for this");
+ error (_("No run-time support for this"));
}
-/* ARGSUSED */
static void
-default_terminal_info (args, from_tty)
- char *args;
- int from_tty;
+default_terminal_info (char *args, int from_tty)
{
- printf_unfiltered ("No saved terminal information.\n");
+ printf_unfiltered (_("No saved terminal information.\n"));
}
/* This is the default target_create_inferior and target_attach function.
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)
{
if (target_has_execution)
{
- printf_unfiltered ("You are already running a program:\n");
+ printf_unfiltered (_("You are already running a program:\n"));
target_files_info ();
if (query ("Kill it? "))
{
target_kill ();
if (target_has_execution)
- error ("Killing the program did not help.");
+ error (_("Killing the program did not help."));
return;
}
else
{
- error ("Program not killed.");
+ error (_("Program not killed."));
}
}
tcomplain ();
}
-static void
-maybe_kill_then_attach (args, from_tty)
- 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;
-{
- kill_or_be_killed (0);
- target_create_inferior (exec, args, env);
-}
-
-static void
-default_clone_and_follow_inferior (child_pid, followed_child)
- 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;
-{
-
-#define de_fault(field, value) \
- 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 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, then filling in still empty entries. In
+ effect, we are doing class inheritance through the pushed target
+ vectors.
-/* 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. */
+ NOTE: cagney/2003-10-17: The problem with this inheritance, as it
+ is currently implemented, is that it discards any knowledge of
+ which target an inherited method originally belonged to.
+ Consequently, new new target methods should instead explicitly and
+ locally search the target stack for the target that can handle the
+ request. */
static void
-update_current_target ()
+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;
+ /* First, reset current's contents. */
+ memset (¤t_target, 0, sizeof (current_target));
#define INHERIT(FIELD, TARGET) \
if (!current_target.FIELD) \
- current_target.FIELD = TARGET->FIELD
+ current_target.FIELD = (TARGET)->FIELD
+ for (t = target_stack; t; t = t->beneath)
+ {
INHERIT (to_shortname, t);
INHERIT (to_longname, t);
INHERIT (to_doc, t);
- INHERIT (to_open, t);
- INHERIT (to_close, t);
+ /* Do not inherit to_open. */
+ /* Do not inherit to_close. */
INHERIT (to_attach, t);
INHERIT (to_post_attach, t);
- INHERIT (to_require_attach, t);
+ INHERIT (to_attach_no_wait, t);
INHERIT (to_detach, t);
- INHERIT (to_require_detach, t);
+ /* Do not inherit to_disconnect. */
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 (deprecated_xfer_memory, t);
INHERIT (to_files_info, t);
INHERIT (to_insert_breakpoint, t);
INHERIT (to_remove_breakpoint, t);
+ INHERIT (to_can_use_hw_breakpoint, t);
+ INHERIT (to_insert_hw_breakpoint, t);
+ INHERIT (to_remove_hw_breakpoint, t);
+ INHERIT (to_insert_watchpoint, t);
+ INHERIT (to_remove_watchpoint, t);
+ INHERIT (to_stopped_data_address, t);
+ INHERIT (to_have_steppable_watchpoint, t);
+ INHERIT (to_have_continuable_watchpoint, t);
+ INHERIT (to_stopped_by_watchpoint, t);
+ INHERIT (to_watchpoint_addr_within_range, t);
+ INHERIT (to_region_ok_for_hw_watchpoint, 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_save_ours, t);
INHERIT (to_terminal_info, t);
INHERIT (to_kill, t);
INHERIT (to_load, 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);
+ /* Do not inherit to_follow_fork. */
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_pid_to_str, t);
INHERIT (to_extra_thread_info, t);
INHERIT (to_stop, t);
- INHERIT (to_query, t);
+ /* Do not inherit to_xfer_partial. */
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_log_command, 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_can_async_p, t);
INHERIT (to_is_async_p, t);
INHERIT (to_async, t);
- INHERIT (to_async_mask_value, t);
+ INHERIT (to_async_mask, t);
+ INHERIT (to_find_memory_regions, t);
+ INHERIT (to_make_corefile_notes, t);
+ INHERIT (to_get_thread_local_address, t);
+ /* Do not inherit to_read_description. */
+ /* Do not inherit to_search_memory. */
INHERIT (to_magic, t);
-
-#undef INHERIT
+ /* Do not inherit to_memory_map. */
+ /* Do not inherit to_flash_erase. */
+ /* Do not inherit to_flash_done. */
}
+#undef INHERIT
+
+ /* Clean up a target struct so it no longer has any zero pointers in
+ it. Some entries are defaulted to a method that print an error,
+ others are hard-wired to a standard recursive default. */
+
+#define de_fault(field, value) \
+ if (!current_target.field) \
+ current_target.field = value
+
+ de_fault (to_open,
+ (void (*) (char *, int))
+ tcomplain);
+ de_fault (to_close,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_post_attach,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_detach,
+ (void (*) (char *, int))
+ target_ignore);
+ de_fault (to_resume,
+ (void (*) (ptid_t, int, enum target_signal))
+ noprocess);
+ de_fault (to_wait,
+ (ptid_t (*) (ptid_t, struct target_waitstatus *))
+ noprocess);
+ de_fault (to_fetch_registers,
+ (void (*) (struct regcache *, int))
+ target_ignore);
+ de_fault (to_store_registers,
+ (void (*) (struct regcache *, int))
+ noprocess);
+ de_fault (to_prepare_to_store,
+ (void (*) (struct regcache *))
+ noprocess);
+ de_fault (deprecated_xfer_memory,
+ (int (*) (CORE_ADDR, gdb_byte *, 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_can_use_hw_breakpoint,
+ (int (*) (int, int, int))
+ return_zero);
+ de_fault (to_insert_hw_breakpoint,
+ (int (*) (struct bp_target_info *))
+ return_minus_one);
+ de_fault (to_remove_hw_breakpoint,
+ (int (*) (struct bp_target_info *))
+ return_minus_one);
+ de_fault (to_insert_watchpoint,
+ (int (*) (CORE_ADDR, int, int))
+ return_minus_one);
+ de_fault (to_remove_watchpoint,
+ (int (*) (CORE_ADDR, int, int))
+ return_minus_one);
+ de_fault (to_stopped_by_watchpoint,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_stopped_data_address,
+ (int (*) (struct target_ops *, CORE_ADDR *))
+ return_zero);
+ de_fault (to_watchpoint_addr_within_range,
+ default_watchpoint_addr_within_range);
+ de_fault (to_region_ok_for_hw_watchpoint,
+ default_region_ok_for_hw_watchpoint);
+ 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_save_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_post_startup_inferior,
+ (void (*) (ptid_t))
+ target_ignore);
+ de_fault (to_acknowledge_created_inferior,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_insert_fork_catchpoint,
+ (void (*) (int))
+ tcomplain);
+ de_fault (to_remove_fork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_insert_vfork_catchpoint,
+ (void (*) (int))
+ tcomplain);
+ de_fault (to_remove_vfork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_insert_exec_catchpoint,
+ (void (*) (int))
+ tcomplain);
+ de_fault (to_remove_exec_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ 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 (*) (ptid_t))
+ target_ignore);
+ de_fault (to_thread_alive,
+ (int (*) (ptid_t))
+ 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 (*) (ptid_t))
+ target_ignore);
+ current_target.to_xfer_partial = current_xfer_partial;
+ de_fault (to_rcmd,
+ (void (*) (char *, struct ui_file *))
+ tcomplain);
+ de_fault (to_pid_to_exec_file,
+ (char *(*) (int))
+ return_zero);
+ de_fault (to_async,
+ (void (*) (void (*) (enum inferior_event_type, void*), void*))
+ tcomplain);
+ de_fault (to_async_mask,
+ (int (*) (int))
+ return_one);
+ current_target.to_read_description = NULL;
+#undef de_fault
+
+ /* Finally, position the target-stack beneath the squashed
+ "current_target". That way code looking for a non-inherited
+ target method can quickly and simply find it. */
+ current_target.beneath = target_stack;
+
+ if (targetdebug)
+ setup_target_debug ();
+}
+
+/* Mark OPS as a running target. This reverses the effect
+ of target_mark_exited. */
+
+void
+target_mark_running (struct target_ops *ops)
+{
+ struct target_ops *t;
+
+ for (t = target_stack; t != NULL; t = t->beneath)
+ if (t == ops)
+ break;
+ if (t == NULL)
+ internal_error (__FILE__, __LINE__,
+ "Attempted to mark unpushed target \"%s\" as running",
+ ops->to_shortname);
+
+ ops->to_has_execution = 1;
+ ops->to_has_all_memory = 1;
+ ops->to_has_memory = 1;
+ ops->to_has_stack = 1;
+ ops->to_has_registers = 1;
+
+ update_current_target ();
+}
+
+/* Mark OPS as a non-running target. This reverses the effect
+ of target_mark_running. */
+
+void
+target_mark_exited (struct target_ops *ops)
+{
+ struct target_ops *t;
+
+ for (t = target_stack; t != NULL; t = t->beneath)
+ if (t == ops)
+ break;
+ if (t == NULL)
+ internal_error (__FILE__, __LINE__,
+ "Attempted to mark unpushed target \"%s\" as running",
+ ops->to_shortname);
+
+ ops->to_has_execution = 0;
+ ops->to_has_all_memory = 0;
+ ops->to_has_memory = 0;
+ ops->to_has_stack = 0;
+ ops->to_has_registers = 0;
+
+ update_current_target ();
}
/* Push a new target type into the stack of the existing target accessors,
checking them. */
int
-push_target (t)
- struct target_ops *t;
+push_target (struct target_ops *t)
{
- struct target_stack_item *cur, *prev, *tmp;
+ struct target_ops **cur;
/* Check magic number. If wrong, it probably means someone changed
the struct definition, but not all the places that initialize one. */
fprintf_unfiltered (gdb_stderr,
"Magic number of %s target struct wrong\n",
t->to_shortname);
- abort ();
+ 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)
+ /* Find the proper stratum to install this target in. */
+ for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
{
- if ((int) (t->to_stratum) >= (int) (cur->target_ops->to_stratum))
+ if ((int) (t->to_stratum) >= (int) (*cur)->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;
- free (cur);
- cur = tmp;
- }
+ /* If there's already targets at this stratum, remove them. */
+ /* FIXME: cagney/2003-10-15: I think this should be popping all
+ targets to CUR, and not just those at this stratum level. */
+ while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum)
+ {
+ /* There's already something at this stratum level. Close it,
+ and un-hook it from the stack. */
+ struct target_ops *tmp = (*cur);
+ (*cur) = (*cur)->beneath;
+ tmp->beneath = NULL;
+ target_close (tmp, 0);
+ }
/* 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;
-
- if (prev)
- prev->next = tmp;
- else
- target_stack = tmp;
+ t->beneath = (*cur);
+ (*cur) = t;
update_current_target ();
- cleanup_target (¤t_target); /* Fill in the gaps */
-
- if (targetdebug)
- setup_target_debug ();
-
- return prev != 0;
+ /* Not on top? */
+ return (t != target_stack);
}
-/* Remove a target_ops vector from the stack, wherever it may be.
+/* Remove a target_ops vector from the stack, wherever it may be.
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_stack_item *cur, *prev;
-
- if (t->to_close)
- t->to_close (0); /* Let it clean up */
+ struct target_ops **cur;
+ struct target_ops *tmp;
/* 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;
+ for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
+ {
+ if ((*cur) == t)
+ break;
+ }
- if (!cur)
+ if ((*cur) == NULL)
return 0; /* Didn't find target_ops, quit now */
- /* Unchain the target */
-
- if (!prev)
- target_stack = cur->next;
- else
- prev->next = cur->next;
+ /* NOTE: cagney/2003-12-06: In '94 the close call was made
+ unconditional by moving it to before the above check that the
+ target was in the target stack (something about "Change the way
+ pushing and popping of targets work to support target overlays
+ and inheritance"). This doesn't make much sense - only open
+ targets should be closed. */
+ target_close (t, 0);
- free (cur); /* Release the target_stack_item */
+ /* Unchain the target */
+ tmp = (*cur);
+ (*cur) = (*cur)->beneath;
+ tmp->beneath = NULL;
update_current_target ();
- cleanup_target (¤t_target);
return 1;
}
void
-pop_target ()
+pop_target (void)
{
- (current_target.to_close) (0); /* Let it clean up */
- if (unpush_target (target_stack->target_ops) == 1)
+ target_close (target_stack, 0); /* Let it clean up */
+ if (unpush_target (target_stack) == 1)
return;
fprintf_unfiltered (gdb_stderr,
"pop_target couldn't find target %s\n",
current_target.to_shortname);
- abort ();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+}
+
+void
+pop_all_targets_above (enum strata above_stratum, int quitting)
+{
+ while ((int) (current_target.to_stratum) > (int) above_stratum)
+ {
+ target_close (target_stack, quitting);
+ if (!unpush_target (target_stack))
+ {
+ fprintf_unfiltered (gdb_stderr,
+ "pop_all_targets couldn't find target %s\n",
+ target_stack->to_shortname);
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
+ break;
+ }
+ }
+}
+
+void
+pop_all_targets (int quitting)
+{
+ pop_all_targets_above (dummy_stratum, quitting);
+}
+
+/* Using the objfile specified in OBJFILE, find the address for the
+ current thread's thread-local storage with offset OFFSET. */
+CORE_ADDR
+target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset)
+{
+ volatile CORE_ADDR addr = 0;
+
+ if (target_get_thread_local_address_p ()
+ && gdbarch_fetch_tls_load_module_address_p (target_gdbarch))
+ {
+ ptid_t ptid = inferior_ptid;
+ volatile struct gdb_exception ex;
+
+ TRY_CATCH (ex, RETURN_MASK_ALL)
+ {
+ CORE_ADDR lm_addr;
+
+ /* Fetch the load module address for this objfile. */
+ lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch,
+ objfile);
+ /* If it's 0, throw the appropriate exception. */
+ if (lm_addr == 0)
+ throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR,
+ _("TLS load module not found"));
+
+ addr = target_get_thread_local_address (ptid, lm_addr, offset);
+ }
+ /* If an error occurred, print TLS related messages here. Otherwise,
+ throw the error to some higher catcher. */
+ if (ex.reason < 0)
+ {
+ int objfile_is_library = (objfile->flags & OBJF_SHARED);
+
+ switch (ex.error)
+ {
+ case TLS_NO_LIBRARY_SUPPORT_ERROR:
+ error (_("Cannot find thread-local variables in this thread library."));
+ break;
+ case TLS_LOAD_MODULE_NOT_FOUND_ERROR:
+ if (objfile_is_library)
+ error (_("Cannot find shared library `%s' in dynamic"
+ " linker's load module list"), objfile->name);
+ else
+ error (_("Cannot find executable file `%s' in dynamic"
+ " linker's load module list"), objfile->name);
+ break;
+ case TLS_NOT_ALLOCATED_YET_ERROR:
+ if (objfile_is_library)
+ error (_("The inferior has not yet allocated storage for"
+ " thread-local variables in\n"
+ "the shared library `%s'\n"
+ "for %s"),
+ objfile->name, target_pid_to_str (ptid));
+ else
+ error (_("The inferior has not yet allocated storage for"
+ " thread-local variables in\n"
+ "the executable `%s'\n"
+ "for %s"),
+ objfile->name, target_pid_to_str (ptid));
+ break;
+ case TLS_GENERIC_ERROR:
+ if (objfile_is_library)
+ error (_("Cannot find thread-local storage for %s, "
+ "shared library %s:\n%s"),
+ target_pid_to_str (ptid),
+ objfile->name, ex.message);
+ else
+ error (_("Cannot find thread-local storage for %s, "
+ "executable file %s:\n%s"),
+ target_pid_to_str (ptid),
+ objfile->name, ex.message);
+ break;
+ default:
+ throw_exception (ex);
+ break;
+ }
+ }
+ }
+ /* It wouldn't be wrong here to try a gdbarch method, too; finding
+ TLS is an ABI-specific thing. But we don't do that yet. */
+ else
+ error (_("Cannot find thread-local variables on this target"));
+
+ return addr;
}
#undef MIN
read. */
int
-target_read_string (memaddr, string, len, errnop)
- CORE_ADDR memaddr;
- char **string;
- int len;
- int *errnop;
+target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
{
int tlen, origlen, offset, i;
- char buf[4];
+ gdb_byte buf[4];
int errcode = 0;
char *buffer;
int buffer_allocated;
char *bufptr;
unsigned int nbytes_read = 0;
+ gdb_assert (string);
+
/* Small for testing. */
buffer_allocated = 4;
buffer = xmalloc (buffer_allocated);
tlen = MIN (len, 4 - (memaddr & 3));
offset = memaddr & 3;
- errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0);
+ errcode = target_read_memory (memaddr & ~3, buf, sizeof buf);
if (errcode != 0)
{
/* The transfer request might have crossed the boundary to an
a single byte. */
tlen = 1;
offset = 0;
- errcode = target_xfer_memory (memaddr, buf, 1, 0);
+ errcode = target_read_memory (memaddr, buf, 1);
if (errcode != 0)
goto done;
}
nbytes_read += tlen;
}
done:
+ *string = buffer;
if (errnop != NULL)
*errnop = errcode;
- if (string != NULL)
- *string = buffer;
return nbytes_read;
}
-/* 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.
-
- 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;
+/* Find a section containing ADDR. */
+struct section_table *
+target_section_by_addr (struct target_ops *target, CORE_ADDR addr)
{
- return target_xfer_memory (memaddr, myaddr, len, 0);
+ struct section_table *secp;
+ for (secp = target->to_sections;
+ secp < target->to_sections_end;
+ secp++)
+ {
+ if (addr >= secp->addr && addr < secp->endaddr)
+ return secp;
+ }
+ return NULL;
}
-int
-target_write_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
-{
- return target_xfer_memory (memaddr, myaddr, len, 1);
-}
+/* Perform a partial memory transfer. The arguments and return
+ value are just as for target_xfer_partial. */
-/* 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.
-
- Result is 0 or errno value. */
-
-static int
-target_xfer_memory (memaddr, myaddr, len, write)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
-{
- int curlen;
- int res;
- struct target_ops *t;
- struct target_stack_item *item;
+static LONGEST
+memory_xfer_partial (struct target_ops *ops, void *readbuf, const void *writebuf,
+ ULONGEST memaddr, LONGEST len)
+{
+ LONGEST res;
+ int reg_len;
+ struct mem_region *region;
/* Zero length requests are ok and require no work. */
if (len == 0)
return 0;
- /* to_xfer_memory is not guaranteed to set errno, even when it returns
- 0. */
- errno = 0;
+ /* Try the executable file, if "trust-readonly-sections" is set. */
+ if (readbuf != NULL && trust_readonly)
+ {
+ struct section_table *secp;
- /* The quick case is that the top target does it all. */
- res = current_target.to_xfer_memory
- (memaddr, myaddr, len, write, ¤t_target);
- if (res == len)
- return 0;
+ secp = target_section_by_addr (ops, memaddr);
+ if (secp != NULL
+ && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section)
+ & SEC_READONLY))
+ return xfer_memory (memaddr, readbuf, len, 0, NULL, ops);
+ }
- if (res > 0)
- goto bump;
- /* If res <= 0 then we call it again in the loop. Ah well. */
+ /* Likewise for accesses to unmapped overlay sections. */
+ if (readbuf != NULL && overlay_debugging)
+ {
+ struct obj_section *section = find_pc_overlay (memaddr);
+ if (pc_in_unmapped_range (memaddr, section))
+ return xfer_memory (memaddr, readbuf, len, 0, NULL, ops);
+ }
- for (; len > 0;)
+ /* Try GDB's internal data cache. */
+ region = lookup_mem_region (memaddr);
+ /* region->hi == 0 means there's no upper bound. */
+ if (memaddr + len < region->hi || region->hi == 0)
+ reg_len = len;
+ else
+ reg_len = region->hi - memaddr;
+
+ switch (region->attrib.mode)
{
- curlen = len; /* Want to do it all */
- for (item = target_stack; item; item = item->next)
+ case MEM_RO:
+ if (writebuf != NULL)
+ return -1;
+ break;
+
+ case MEM_WO:
+ if (readbuf != NULL)
+ return -1;
+ break;
+
+ case MEM_FLASH:
+ /* We only support writing to flash during "load" for now. */
+ if (writebuf != NULL)
+ error (_("Writing to flash memory forbidden in this context"));
+ break;
+
+ case MEM_NONE:
+ return -1;
+ }
+
+ if (region->attrib.cache)
+ {
+ /* FIXME drow/2006-08-09: This call discards OPS, so the raw
+ memory request will start back at current_target. */
+ if (readbuf != NULL)
+ res = dcache_xfer_memory (target_dcache, memaddr, readbuf,
+ reg_len, 0);
+ else
+ /* FIXME drow/2006-08-09: If we're going to preserve const
+ correctness dcache_xfer_memory should take readbuf and
+ writebuf. */
+ res = dcache_xfer_memory (target_dcache, memaddr,
+ (void *) writebuf,
+ reg_len, 1);
+ if (res <= 0)
+ return -1;
+ else
{
- t = item->target_ops;
- if (!t->to_has_memory)
- continue;
-
- res = t->to_xfer_memory (memaddr, myaddr, curlen, write, t);
- if (res > 0)
- break; /* Handled all or part of xfer */
- if (t->to_has_all_memory)
- break;
+ if (readbuf && !show_memory_breakpoints)
+ breakpoint_restore_shadows (readbuf, memaddr, reg_len);
+ return res;
}
+ }
- if (res <= 0)
+ /* If none of those methods found the memory we wanted, fall back
+ to a target partial transfer. Normally a single call to
+ to_xfer_partial is enough; if it doesn't recognize an object
+ it will call the to_xfer_partial of the next target down.
+ But for memory this won't do. Memory is the only target
+ object which can be read from more than one valid target.
+ A core file, for instance, could have some of memory but
+ delegate other bits to the target below it. So, we must
+ manually try all targets. */
+
+ do
+ {
+ res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL,
+ readbuf, writebuf, memaddr, reg_len);
+ if (res > 0)
+ break;
+
+ /* We want to continue past core files to executables, but not
+ past a running target's memory. */
+ if (ops->to_has_all_memory)
+ break;
+
+ ops = ops->beneath;
+ }
+ while (ops != NULL);
+
+ if (readbuf && !show_memory_breakpoints)
+ breakpoint_restore_shadows (readbuf, memaddr, reg_len);
+
+ /* If we still haven't got anything, return the last error. We
+ give up. */
+ return res;
+}
+
+static void
+restore_show_memory_breakpoints (void *arg)
+{
+ show_memory_breakpoints = (uintptr_t) arg;
+}
+
+struct cleanup *
+make_show_memory_breakpoints_cleanup (int show)
+{
+ int current = show_memory_breakpoints;
+ show_memory_breakpoints = show;
+
+ return make_cleanup (restore_show_memory_breakpoints,
+ (void *) (uintptr_t) current);
+}
+
+static LONGEST
+target_xfer_partial (struct target_ops *ops,
+ enum target_object object, const char *annex,
+ void *readbuf, const void *writebuf,
+ ULONGEST offset, LONGEST len)
+{
+ LONGEST retval;
+
+ gdb_assert (ops->to_xfer_partial != NULL);
+
+ /* If this is a memory transfer, let the memory-specific code
+ have a look at it instead. Memory transfers are more
+ complicated. */
+ if (object == TARGET_OBJECT_MEMORY)
+ retval = memory_xfer_partial (ops, readbuf, writebuf, offset, len);
+ else
+ {
+ enum target_object raw_object = object;
+
+ /* If this is a raw memory transfer, request the normal
+ memory object from other layers. */
+ if (raw_object == TARGET_OBJECT_RAW_MEMORY)
+ raw_object = TARGET_OBJECT_MEMORY;
+
+ retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf,
+ writebuf, offset, len);
+ }
+
+ if (targetdebug)
+ {
+ const unsigned char *myaddr = NULL;
+
+ fprintf_unfiltered (gdb_stdlog,
+ "%s:target_xfer_partial (%d, %s, 0x%lx, 0x%lx, %s, %s) = %s",
+ ops->to_shortname,
+ (int) object,
+ (annex ? annex : "(null)"),
+ (long) readbuf, (long) writebuf,
+ core_addr_to_string_nz (offset),
+ plongest (len), plongest (retval));
+
+ if (readbuf)
+ myaddr = readbuf;
+ if (writebuf)
+ myaddr = writebuf;
+ if (retval > 0 && myaddr != NULL)
{
- /* 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;
+ int i;
+
+ fputs_unfiltered (", bytes =", gdb_stdlog);
+ for (i = 0; i < retval; i++)
+ {
+ if ((((long) &(myaddr[i])) & 0xf) == 0)
+ {
+ if (targetdebug < 2 && i > 0)
+ {
+ fprintf_unfiltered (gdb_stdlog, " ...");
+ break;
+ }
+ fprintf_unfiltered (gdb_stdlog, "\n");
+ }
+
+ fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
+ }
}
- bump:
- memaddr += res;
- myaddr += res;
- len -= res;
+
+ fputc_unfiltered ('\n', gdb_stdlog);
}
- return 0; /* We managed to cover it all somehow. */
+ return retval;
}
+/* 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.
-/* Perform a partial memory transfer. */
+ 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 (which will retry until
+ it makes no progress, and then return how much was transferred). */
-static int
-target_xfer_memory_partial (CORE_ADDR memaddr, char *buf, int len,
- int write_p, int *err)
+int
+target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
{
- int res;
- int err_res;
- int len_res;
+ if (target_read (¤t_target, TARGET_OBJECT_MEMORY, NULL,
+ myaddr, memaddr, len) == len)
+ return 0;
+ else
+ return EIO;
+}
+
+int
+target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len)
+{
+ if (target_write (¤t_target, TARGET_OBJECT_MEMORY, NULL,
+ myaddr, memaddr, len) == len)
+ return 0;
+ else
+ return EIO;
+}
+
+/* Fetch the target's memory map. */
+
+VEC(mem_region_s) *
+target_memory_map (void)
+{
+ VEC(mem_region_s) *result;
+ struct mem_region *last_one, *this_one;
+ int ix;
struct target_ops *t;
- struct target_stack_item *item;
- /* Zero length requests are ok and require no work. */
- if (len == 0)
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n");
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_memory_map != NULL)
+ break;
+
+ if (t == NULL)
+ return NULL;
+
+ result = t->to_memory_map (t);
+ if (result == NULL)
+ return NULL;
+
+ qsort (VEC_address (mem_region_s, result),
+ VEC_length (mem_region_s, result),
+ sizeof (struct mem_region), mem_region_cmp);
+
+ /* Check that regions do not overlap. Simultaneously assign
+ a numbering for the "mem" commands to use to refer to
+ each region. */
+ last_one = NULL;
+ for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++)
{
- *err = 0;
- return 0;
+ this_one->number = ix;
+
+ if (last_one && last_one->hi > this_one->lo)
+ {
+ warning (_("Overlapping regions in memory map: ignoring"));
+ VEC_free (mem_region_s, result);
+ return NULL;
+ }
+ last_one = this_one;
}
- /* The quick case is that the top target does it all. */
- res = current_target.to_xfer_memory (memaddr, buf, len, write_p, ¤t_target);
- if (res > 0)
+ return result;
+}
+
+void
+target_flash_erase (ULONGEST address, LONGEST length)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_flash_erase != NULL)
+ {
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n",
+ paddr (address), phex (length, 0));
+ t->to_flash_erase (t, address, length);
+ return;
+ }
+
+ tcomplain ();
+}
+
+void
+target_flash_done (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_flash_done != NULL)
+ {
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_flash_done\n");
+ t->to_flash_done (t);
+ return;
+ }
+
+ tcomplain ();
+}
+
+#ifndef target_stopped_data_address_p
+int
+target_stopped_data_address_p (struct target_ops *target)
+{
+ if (target->to_stopped_data_address
+ == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero)
+ return 0;
+ if (target->to_stopped_data_address == debug_to_stopped_data_address
+ && (debug_target.to_stopped_data_address
+ == (int (*) (struct target_ops *, CORE_ADDR *)) return_zero))
+ return 0;
+ return 1;
+}
+#endif
+
+static void
+show_trust_readonly (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("\
+Mode for reading from readonly sections is %s.\n"),
+ value);
+}
+
+/* More generic transfers. */
+
+static LONGEST
+default_xfer_partial (struct target_ops *ops, enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
+{
+ if (object == TARGET_OBJECT_MEMORY
+ && ops->deprecated_xfer_memory != NULL)
+ /* If available, fall back to the target's
+ "deprecated_xfer_memory" method. */
{
- *err = 0;
- return res;
+ int xfered = -1;
+ errno = 0;
+ if (writebuf != NULL)
+ {
+ void *buffer = xmalloc (len);
+ struct cleanup *cleanup = make_cleanup (xfree, buffer);
+ memcpy (buffer, writebuf, len);
+ xfered = ops->deprecated_xfer_memory (offset, buffer, len,
+ 1/*write*/, NULL, ops);
+ do_cleanups (cleanup);
+ }
+ if (readbuf != NULL)
+ xfered = ops->deprecated_xfer_memory (offset, readbuf, len,
+ 0/*read*/, NULL, ops);
+ if (xfered > 0)
+ return xfered;
+ else if (xfered == 0 && errno == 0)
+ /* "deprecated_xfer_memory" uses 0, cross checked against
+ ERRNO as one indication of an error. */
+ return 0;
+ else
+ return -1;
}
+ else if (ops->beneath != NULL)
+ return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
+ readbuf, writebuf, offset, len);
+ else
+ return -1;
+}
+
+/* The xfer_partial handler for the topmost target. Unlike the default,
+ it does not need to handle memory specially; it just passes all
+ requests down the stack. */
+
+static LONGEST
+current_xfer_partial (struct target_ops *ops, enum target_object object,
+ const char *annex, gdb_byte *readbuf,
+ const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
+{
+ if (ops->beneath != NULL)
+ return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
+ readbuf, writebuf, offset, len);
+ else
+ return -1;
+}
- /* xfer memory doesn't always reliably set errno. */
- errno = 0;
+/* Target vector read/write partial wrapper functions.
- /* Try all levels of the target stack to see one can handle it. */
- for (item = target_stack; item; item = item->next)
+ NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial
+ (inbuf, outbuf)", instead of separate read/write methods, make life
+ easier. */
+
+static LONGEST
+target_read_partial (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, gdb_byte *buf,
+ ULONGEST offset, LONGEST len)
+{
+ return target_xfer_partial (ops, object, annex, buf, NULL, offset, len);
+}
+
+static LONGEST
+target_write_partial (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, const gdb_byte *buf,
+ ULONGEST offset, LONGEST len)
+{
+ return target_xfer_partial (ops, object, annex, NULL, buf, offset, len);
+}
+
+/* Wrappers to perform the full transfer. */
+LONGEST
+target_read (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, gdb_byte *buf,
+ ULONGEST offset, LONGEST len)
+{
+ LONGEST xfered = 0;
+ while (xfered < len)
{
- t = item->target_ops;
- if (!t->to_has_memory)
- continue;
- res = t->to_xfer_memory (memaddr, buf, len, write_p, t);
- if (res > 0)
+ LONGEST xfer = target_read_partial (ops, object, annex,
+ (gdb_byte *) buf + xfered,
+ offset + xfered, len - xfered);
+ /* Call an observer, notifying them of the xfer progress? */
+ if (xfer == 0)
+ return xfered;
+ if (xfer < 0)
+ return -1;
+ xfered += xfer;
+ QUIT;
+ }
+ return len;
+}
+
+LONGEST
+target_read_until_error (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, gdb_byte *buf,
+ ULONGEST offset, LONGEST len)
+{
+ LONGEST xfered = 0;
+ while (xfered < len)
+ {
+ LONGEST xfer = target_read_partial (ops, object, annex,
+ (gdb_byte *) buf + xfered,
+ offset + xfered, len - xfered);
+ /* Call an observer, notifying them of the xfer progress? */
+ if (xfer == 0)
+ return xfered;
+ if (xfer < 0)
{
- /* Handled all or part of xfer */
- *err = 0;
- return res;
+ /* We've got an error. Try to read in smaller blocks. */
+ ULONGEST start = offset + xfered;
+ ULONGEST remaining = len - xfered;
+ ULONGEST half;
+
+ /* If an attempt was made to read a random memory address,
+ it's likely that the very first byte is not accessible.
+ Try reading the first byte, to avoid doing log N tries
+ below. */
+ xfer = target_read_partial (ops, object, annex,
+ (gdb_byte *) buf + xfered, start, 1);
+ if (xfer <= 0)
+ return xfered;
+ start += 1;
+ remaining -= 1;
+ half = remaining/2;
+
+ while (half > 0)
+ {
+ xfer = target_read_partial (ops, object, annex,
+ (gdb_byte *) buf + xfered,
+ start, half);
+ if (xfer == 0)
+ return xfered;
+ if (xfer < 0)
+ {
+ remaining = half;
+ }
+ else
+ {
+ /* We have successfully read the first half. So, the
+ error must be in the second half. Adjust start and
+ remaining to point at the second half. */
+ xfered += xfer;
+ start += xfer;
+ remaining -= xfer;
+ }
+ half = remaining/2;
+ }
+
+ return xfered;
}
- if (t->to_has_all_memory)
- break;
+ xfered += xfer;
+ QUIT;
}
+ return len;
+}
+
+
+/* An alternative to target_write with progress callbacks. */
+
+LONGEST
+target_write_with_progress (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, const gdb_byte *buf,
+ ULONGEST offset, LONGEST len,
+ void (*progress) (ULONGEST, void *), void *baton)
+{
+ LONGEST xfered = 0;
- /* Total failure. Return error. */
- if (errno != 0)
+ /* Give the progress callback a chance to set up. */
+ if (progress)
+ (*progress) (0, baton);
+
+ while (xfered < len)
{
- *err = errno;
- return -1;
+ LONGEST xfer = target_write_partial (ops, object, annex,
+ (gdb_byte *) buf + xfered,
+ offset + xfered, len - xfered);
+
+ if (xfer == 0)
+ return xfered;
+ if (xfer < 0)
+ return -1;
+
+ if (progress)
+ (*progress) (xfer, baton);
+
+ xfered += xfer;
+ QUIT;
+ }
+ return len;
+}
+
+LONGEST
+target_write (struct target_ops *ops,
+ enum target_object object,
+ const char *annex, const gdb_byte *buf,
+ ULONGEST offset, LONGEST len)
+{
+ return target_write_with_progress (ops, object, annex, buf, offset, len,
+ NULL, NULL);
+}
+
+/* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
+ the size of the transferred data. PADDING additional bytes are
+ available in *BUF_P. This is a helper function for
+ target_read_alloc; see the declaration of that function for more
+ information. */
+
+static LONGEST
+target_read_alloc_1 (struct target_ops *ops, enum target_object object,
+ const char *annex, gdb_byte **buf_p, int padding)
+{
+ size_t buf_alloc, buf_pos;
+ gdb_byte *buf;
+ LONGEST n;
+
+ /* This function does not have a length parameter; it reads the
+ entire OBJECT). Also, it doesn't support objects fetched partly
+ from one target and partly from another (in a different stratum,
+ e.g. a core file and an executable). Both reasons make it
+ unsuitable for reading memory. */
+ gdb_assert (object != TARGET_OBJECT_MEMORY);
+
+ /* Start by reading up to 4K at a time. The target will throttle
+ this number down if necessary. */
+ buf_alloc = 4096;
+ buf = xmalloc (buf_alloc);
+ buf_pos = 0;
+ while (1)
+ {
+ n = target_read_partial (ops, object, annex, &buf[buf_pos],
+ buf_pos, buf_alloc - buf_pos - padding);
+ if (n < 0)
+ {
+ /* An error occurred. */
+ xfree (buf);
+ return -1;
+ }
+ else if (n == 0)
+ {
+ /* Read all there was. */
+ if (buf_pos == 0)
+ xfree (buf);
+ else
+ *buf_p = buf;
+ return buf_pos;
+ }
+
+ buf_pos += n;
+
+ /* If the buffer is filling up, expand it. */
+ if (buf_alloc < buf_pos * 2)
+ {
+ buf_alloc *= 2;
+ buf = xrealloc (buf, buf_alloc);
+ }
+
+ QUIT;
}
- *err = EIO;
- return -1;
}
-int
-target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+/* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
+ the size of the transferred data. See the declaration in "target.h"
+ function for more information about the return value. */
+
+LONGEST
+target_read_alloc (struct target_ops *ops, enum target_object object,
+ const char *annex, gdb_byte **buf_p)
{
- return target_xfer_memory_partial (memaddr, buf, len, 0, err);
+ return target_read_alloc_1 (ops, object, annex, buf_p, 0);
}
-int
-target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+/* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
+ returned as a string, allocated using xmalloc. If an error occurs
+ or the transfer is unsupported, NULL is returned. Empty objects
+ are returned as allocated but empty strings. A warning is issued
+ if the result contains any embedded NUL bytes. */
+
+char *
+target_read_stralloc (struct target_ops *ops, enum target_object object,
+ const char *annex)
{
- return target_xfer_memory_partial (memaddr, buf, len, 1, err);
+ gdb_byte *buffer;
+ LONGEST transferred;
+
+ transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1);
+
+ if (transferred < 0)
+ return NULL;
+
+ if (transferred == 0)
+ return xstrdup ("");
+
+ buffer[transferred] = 0;
+ if (strlen (buffer) < transferred)
+ warning (_("target object %d, annex %s, "
+ "contained unexpected null characters"),
+ (int) object, annex ? annex : "(none)");
+
+ return (char *) buffer;
+}
+
+/* Memory transfer methods. */
+
+void
+get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf,
+ LONGEST len)
+{
+ if (target_read (ops, TARGET_OBJECT_MEMORY, NULL, buf, addr, len)
+ != len)
+ memory_error (EIO, addr);
+}
+
+ULONGEST
+get_target_memory_unsigned (struct target_ops *ops,
+ CORE_ADDR addr, int len)
+{
+ gdb_byte buf[sizeof (ULONGEST)];
+
+ gdb_assert (len <= sizeof (buf));
+ get_target_memory (ops, addr, buf, len);
+ return extract_unsigned_integer (buf, len);
}
-/* 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_objfile != NULL)
- printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name);
-
-#ifdef FILES_INFO_HOOK
- if (FILES_INFO_HOOK ())
- return;
-#endif
+ printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name);
- for (item = target_stack; item; item = item->next)
+ for (t = target_stack; t != NULL; t = t->beneath)
{
- t = item->target_ops;
-
if (!t->to_has_memory)
continue;
if ((int) (t->to_stratum) <= (int) dummy_stratum)
continue;
if (has_all_mem)
- printf_unfiltered ("\tWhile running this, GDB does not access memory from...\n");
+ 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;
}
}
+/* This function is called before any new inferior is created, e.g.
+ by running a program, attaching, or connecting to a target.
+ It cleans up any state from previous invocations which might
+ change between runs. This is a subset of what target_preopen
+ resets (things which might change between targets). */
+
+void
+target_pre_inferior (int from_tty)
+{
+ /* Clear out solib state. Otherwise the solib state of the previous
+ inferior might have survived and is entirely wrong for the new
+ target. This has been observed on GNU/Linux using glibc 2.3. How
+ to reproduce:
+
+ bash$ ./foo&
+ [1] 4711
+ bash$ ./foo&
+ [1] 4712
+ bash$ gdb ./foo
+ [...]
+ (gdb) attach 4711
+ (gdb) detach
+ (gdb) attach 4712
+ Cannot access memory at address 0xdeadbeef
+ */
+ no_shared_libraries (NULL, from_tty);
+
+ invalidate_target_mem_regions ();
+
+ target_clear_description ();
+}
+
/* This is to be called by the open routine before it does
anything. */
void
-target_preopen (from_tty)
- int from_tty;
+target_preopen (int from_tty)
{
dont_repeat ();
if (target_has_execution)
{
if (!from_tty
- || query ("A program is being debugged already. Kill it? "))
+ || query (_("A program is being debugged already. Kill it? ")))
target_kill ();
else
- error ("Program not killed.");
+ error (_("Program not killed."));
}
/* 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. */
+ /* Leave the exec target, though. The user may be switching from a
+ live process to a core of the same program. */
+ pop_all_targets_above (file_stratum, 0);
- if (target_has_execution)
- pop_target ();
+ target_pre_inferior (from_tty);
}
/* Detach a target after doing deferred register stores. */
void
-target_detach (args, from_tty)
- char *args;
- int from_tty;
+target_detach (char *args, int from_tty)
{
- /* Handle any optimized stores to the inferior. */
-#ifdef DO_DEFERRED_STORES
- DO_DEFERRED_STORES;
-#endif
+ /* If we're in breakpoints-always-inserted mode, have to
+ remove them before detaching. */
+ remove_breakpoints ();
+
(current_target.to_detach) (args, from_tty);
}
void
-target_link (modname, t_reloc)
- char *modname;
- CORE_ADDR *t_reloc;
+target_disconnect (char *args, int from_tty)
+{
+ struct target_ops *t;
+
+ /* If we're in breakpoints-always-inserted mode, have to
+ remove them before disconnecting. */
+ remove_breakpoints ();
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_disconnect != NULL)
+ {
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n",
+ args, from_tty);
+ t->to_disconnect (t, args, from_tty);
+ return;
+ }
+
+ tcomplain ();
+}
+
+void
+target_resume (ptid_t ptid, int step, enum target_signal signal)
{
- if (STREQ (current_target.to_shortname, "rombug"))
+ dcache_invalidate (target_dcache);
+ (*current_target.to_resume) (ptid, step, signal);
+ set_executing (ptid, 1);
+ set_running (ptid, 1);
+}
+/* Look through the list of possible targets for a target that can
+ follow forks. */
+
+int
+target_follow_fork (int follow_child)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
{
- (current_target.to_lookup_symbol) (modname, t_reloc);
- if (*t_reloc == 0)
- error ("Unable to link to %s and get relocation in rombug", modname);
+ if (t->to_follow_fork != NULL)
+ {
+ int retval = t->to_follow_fork (t, follow_child);
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n",
+ follow_child, retval);
+ return retval;
+ }
}
- else
- *t_reloc = (CORE_ADDR) -1;
+
+ /* Some target returned a fork event, but did not know how to follow it. */
+ internal_error (__FILE__, __LINE__,
+ "could not find a target to follow fork");
+}
+
+/* Look for a target which can describe architectural features, starting
+ from TARGET. If we find one, return its description. */
+
+const struct target_desc *
+target_read_description (struct target_ops *target)
+{
+ struct target_ops *t;
+
+ for (t = target; t != NULL; t = t->beneath)
+ if (t->to_read_description != NULL)
+ {
+ const struct target_desc *tdesc;
+
+ tdesc = t->to_read_description (t);
+ if (tdesc)
+ return tdesc;
+ }
+
+ return NULL;
+}
+
+/* The default implementation of to_search_memory.
+ This implements a basic search of memory, reading target memory and
+ performing the search here (as opposed to performing the search in on the
+ target side with, for example, gdbserver). */
+
+int
+simple_search_memory (struct target_ops *ops,
+ CORE_ADDR start_addr, ULONGEST search_space_len,
+ const gdb_byte *pattern, ULONGEST pattern_len,
+ CORE_ADDR *found_addrp)
+{
+ /* NOTE: also defined in find.c testcase. */
+#define SEARCH_CHUNK_SIZE 16000
+ const unsigned chunk_size = SEARCH_CHUNK_SIZE;
+ /* Buffer to hold memory contents for searching. */
+ gdb_byte *search_buf;
+ unsigned search_buf_size;
+ struct cleanup *old_cleanups;
+
+ search_buf_size = chunk_size + pattern_len - 1;
+
+ /* No point in trying to allocate a buffer larger than the search space. */
+ if (search_space_len < search_buf_size)
+ search_buf_size = search_space_len;
+
+ search_buf = malloc (search_buf_size);
+ if (search_buf == NULL)
+ error (_("Unable to allocate memory to perform the search."));
+ old_cleanups = make_cleanup (free_current_contents, &search_buf);
+
+ /* Prime the search buffer. */
+
+ if (target_read (ops, TARGET_OBJECT_MEMORY, NULL,
+ search_buf, start_addr, search_buf_size) != search_buf_size)
+ {
+ warning (_("Unable to access target memory at %s, halting search."),
+ hex_string (start_addr));
+ do_cleanups (old_cleanups);
+ return -1;
+ }
+
+ /* Perform the search.
+
+ The loop is kept simple by allocating [N + pattern-length - 1] bytes.
+ When we've scanned N bytes we copy the trailing bytes to the start and
+ read in another N bytes. */
+
+ while (search_space_len >= pattern_len)
+ {
+ gdb_byte *found_ptr;
+ unsigned nr_search_bytes = min (search_space_len, search_buf_size);
+
+ found_ptr = memmem (search_buf, nr_search_bytes,
+ pattern, pattern_len);
+
+ if (found_ptr != NULL)
+ {
+ CORE_ADDR found_addr = start_addr + (found_ptr - search_buf);
+ *found_addrp = found_addr;
+ do_cleanups (old_cleanups);
+ return 1;
+ }
+
+ /* Not found in this chunk, skip to next chunk. */
+
+ /* Don't let search_space_len wrap here, it's unsigned. */
+ if (search_space_len >= chunk_size)
+ search_space_len -= chunk_size;
+ else
+ search_space_len = 0;
+
+ if (search_space_len >= pattern_len)
+ {
+ unsigned keep_len = search_buf_size - chunk_size;
+ CORE_ADDR read_addr = start_addr + keep_len;
+ int nr_to_read;
+
+ /* Copy the trailing part of the previous iteration to the front
+ of the buffer for the next iteration. */
+ gdb_assert (keep_len == pattern_len - 1);
+ memcpy (search_buf, search_buf + chunk_size, keep_len);
+
+ nr_to_read = min (search_space_len - keep_len, chunk_size);
+
+ if (target_read (ops, TARGET_OBJECT_MEMORY, NULL,
+ search_buf + keep_len, read_addr,
+ nr_to_read) != nr_to_read)
+ {
+ warning (_("Unable to access target memory at %s, halting search."),
+ hex_string (read_addr));
+ do_cleanups (old_cleanups);
+ return -1;
+ }
+
+ start_addr += chunk_size;
+ }
+ }
+
+ /* Not found. */
+
+ do_cleanups (old_cleanups);
+ return 0;
}
+/* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
+ sequence of bytes in PATTERN with length PATTERN_LEN.
+
+ The result is 1 if found, 0 if not found, and -1 if there was an error
+ requiring halting of the search (e.g. memory read error).
+ If the pattern is found the address is recorded in FOUND_ADDRP. */
+
int
-target_async_mask (int mask)
+target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len,
+ const gdb_byte *pattern, ULONGEST pattern_len,
+ CORE_ADDR *found_addrp)
+{
+ struct target_ops *t;
+ int found;
+
+ /* We don't use INHERIT to set current_target.to_search_memory,
+ so we have to scan the target stack and handle targetdebug
+ ourselves. */
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n",
+ hex_string (start_addr));
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_search_memory != NULL)
+ break;
+
+ if (t != NULL)
+ {
+ found = t->to_search_memory (t, start_addr, search_space_len,
+ pattern, pattern_len, found_addrp);
+ }
+ else
+ {
+ /* If a special version of to_search_memory isn't available, use the
+ simple version. */
+ found = simple_search_memory (¤t_target,
+ start_addr, search_space_len,
+ pattern, pattern_len, found_addrp);
+ }
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, " = %d\n", found);
+
+ return found;
+}
+
+/* Look through the currently pushed targets. If none of them will
+ be able to restart the currently running process, issue an error
+ message. */
+
+void
+target_require_runnable (void)
{
- int saved_async_masked_status = target_async_mask_value;
- target_async_mask_value = mask;
- return saved_async_masked_status;
+ struct target_ops *t;
+
+ for (t = target_stack; t != NULL; t = t->beneath)
+ {
+ /* If this target knows how to create a new program, then
+ assume we will still be able to after killing the current
+ one. Either killing and mourning will not pop T, or else
+ find_default_run_target will find it again. */
+ if (t->to_create_inferior != NULL)
+ return;
+
+ /* Do not worry about thread_stratum targets that can not
+ create inferiors. Assume they will be pushed again if
+ necessary, and continue to the process_stratum. */
+ if (t->to_stratum == thread_stratum)
+ continue;
+
+ error (_("\
+The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."),
+ t->to_shortname);
+ }
+
+ /* This function is only called if the target is running. In that
+ case there should have been a process_stratum target and it
+ should either know how to create inferiors, or not... */
+ internal_error (__FILE__, __LINE__, "No targets found");
}
/* 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). */
+ If DO_MESG is not NULL, the result is always valid (error() is
+ called for errors); else, return NULL on error. */
static struct target_ops *
-find_default_run_target (do_mesg)
- char *do_mesg;
+find_default_run_target (char *do_mesg)
{
struct target_ops **t;
struct target_ops *runable = NULL;
}
if (count != 1)
- error ("Don't know how to %s. Try \"help target\".", do_mesg);
+ {
+ if (do_mesg)
+ error (_("Don't know how to %s. Try \"help target\"."), do_mesg);
+ else
+ return NULL;
+ }
return runable;
}
void
-find_default_attach (args, from_tty)
- char *args;
- int from_tty;
+find_default_attach (char *args, int from_tty)
{
struct target_ops *t;
}
void
-find_default_require_attach (args, from_tty)
- char *args;
- int from_tty;
+find_default_create_inferior (char *exec_file, char *allargs, char **env,
+ int from_tty)
{
struct target_ops *t;
- t = find_default_run_target ("require_attach");
- (t->to_require_attach) (args, from_tty);
+ t = find_default_run_target ("run");
+ (t->to_create_inferior) (exec_file, allargs, env, from_tty);
return;
}
-void
-find_default_require_detach (pid, args, from_tty)
- int pid;
- char *args;
- int from_tty;
+int
+find_default_can_async_p (void)
{
struct target_ops *t;
- t = find_default_run_target ("require_detach");
- (t->to_require_detach) (pid, args, from_tty);
- return;
+ /* This may be called before the target is pushed on the stack;
+ look for the default process stratum. If there's none, gdb isn't
+ configured with a native debugger, and target remote isn't
+ connected yet. */
+ t = find_default_run_target (NULL);
+ if (t && t->to_can_async_p)
+ return (t->to_can_async_p) ();
+ return 0;
}
-void
-find_default_create_inferior (exec_file, allargs, env)
- char *exec_file;
- char *allargs;
- char **env;
+int
+find_default_is_async_p (void)
{
struct target_ops *t;
- t = find_default_run_target ("run");
- (t->to_create_inferior) (exec_file, allargs, env);
- return;
+ /* This may be called before the target is pushed on the stack;
+ look for the default process stratum. If there's none, gdb isn't
+ configured with a native debugger, and target remote isn't
+ connected yet. */
+ t = find_default_run_target (NULL);
+ if (t && t->to_is_async_p)
+ return (t->to_is_async_p) ();
+ return 0;
}
-void
-find_default_clone_and_follow_inferior (child_pid, followed_child)
- int child_pid;
- int *followed_child;
+int
+find_default_supports_non_stop (void)
{
struct target_ops *t;
- t = find_default_run_target ("run");
- (t->to_clone_and_follow_inferior) (child_pid, followed_child);
- return;
+ t = find_default_run_target (NULL);
+ if (t && t->to_supports_non_stop)
+ return (t->to_supports_non_stop) ();
+ return 0;
+}
+
+int
+target_supports_non_stop ()
+{
+ struct target_ops *t;
+ for (t = ¤t_target; t != NULL; t = t->beneath)
+ if (t->to_supports_non_stop)
+ return t->to_supports_non_stop ();
+
+ return 0;
+}
+
+
+static int
+default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
+{
+ return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT);
+}
+
+static int
+default_watchpoint_addr_within_range (struct target_ops *target,
+ CORE_ADDR addr,
+ CORE_ADDR start, int length)
+{
+ return addr >= start && addr < start + length;
}
static int
-return_zero ()
+return_zero (void)
{
return 0;
}
static int
-return_one ()
+return_one (void)
{
return 1;
}
+static int
+return_minus_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.
/* 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)->to_sections_end = target->to_sections_end;
}
}
+ /* There is a flattened view of the target stack in current_target,
+ so its to_sections pointer might also need updating. */
+ if (current_target.to_sections == old_value)
+ {
+ current_target.to_sections = target->to_sections;
+ current_target.to_sections_end = target->to_sections_end;
+ }
}
-
+
return old_count;
}
some reason there is more than one, return NULL. */
struct target_ops *
-find_run_target ()
+find_run_target (void)
{
struct target_ops **t;
struct target_ops *runable = NULL;
If for some reason there is more than one, return NULL. */
struct target_ops *
-find_core_target ()
+find_core_target (void)
{
struct target_ops **t;
struct target_ops *runable = NULL;
*/
struct target_ops *
-find_target_beneath (t)
- struct target_ops *t;
+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;
+ return t->beneath;
}
\f
/* The inferior process has died. Long live the inferior! */
void
-generic_mourn_inferior ()
+generic_mourn_inferior (void)
{
extern int show_breakpoint_hit_counts;
+ ptid_t ptid;
+
+ ptid = inferior_ptid;
+ inferior_ptid = null_ptid;
+
+ if (!ptid_equal (ptid, null_ptid))
+ {
+ int pid = ptid_get_pid (ptid);
+ delete_inferior (pid);
+ }
- 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 ();
using hit counts. So don't clear them if we're counting hits. */
if (!show_breakpoint_hit_counts)
breakpoint_clear_ignore_counts ();
-}
-\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"},
-
-#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 (sig)
- 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 (sig)
- 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 (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;
+ if (deprecated_detach_hook)
+ deprecated_detach_hook ();
}
\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 (hostsig)
- 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
- 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
- *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.
+/* Helper function for child_wait and the derivatives of child_wait.
HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
translation of that in OURSTATUS. */
void
-store_waitstatus (ourstatus, hoststatus)
- 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
-
+store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
+{
if (WIFEXITED (hoststatus))
{
ourstatus->kind = TARGET_WAITKIND_EXITED;
}
}
\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) (void);
int target_activity_fd;
\f
-/* Convert a normal process ID to a string. Returns the string in a static
- buffer. */
+/* Convert a normal process ID to a string. Returns the string in a
+ static buffer. */
char *
-normal_pid_to_str (pid)
- int pid;
+normal_pid_to_str (ptid_t ptid)
{
- static char buf[30];
-
- if (STREQ (current_target.to_shortname, "remote"))
- sprintf (buf, "thread %d", pid);
- else
- sprintf (buf, "process %d", pid);
+ static char buf[32];
+ xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid));
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.)
+/* Error-catcher for target_find_memory_regions */
+static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2)
+{
+ error (_("No target."));
+ return 0;
+}
- 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 (pid)
- int pid;
+/* Error-catcher for target_make_corefile_notes */
+static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2)
{
- /* This space intentionally left blank. */
+ error (_("No target."));
+ return NULL;
}
/* Set up the handful of non-empty slots needed by the dummy target
vector. */
static void
-init_dummy_target ()
+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_can_async_p = find_default_can_async_p;
+ dummy_target.to_is_async_p = find_default_is_async_p;
+ dummy_target.to_supports_non_stop = find_default_supports_non_stop;
dummy_target.to_pid_to_str = normal_pid_to_str;
dummy_target.to_stratum = dummy_stratum;
+ dummy_target.to_find_memory_regions = dummy_find_memory_regions;
+ dummy_target.to_make_corefile_notes = dummy_make_corefile_notes;
+ dummy_target.to_xfer_partial = default_xfer_partial;
dummy_target.to_magic = OPS_MAGIC;
}
\f
-
-static struct target_ops debug_target;
-
static void
-debug_to_open (args, from_tty)
- char *args;
- int from_tty;
+debug_to_open (char *args, int from_tty)
{
debug_target.to_open (args, from_tty);
}
static void
-debug_to_close (quitting)
- int quitting;
+debug_to_close (int quitting)
{
- debug_target.to_close (quitting);
-
+ target_close (&debug_target, quitting);
fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
}
-static void
-debug_to_attach (args, from_tty)
- char *args;
- int from_tty;
+void
+target_close (struct target_ops *targ, int quitting)
{
- debug_target.to_attach (args, from_tty);
-
- fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty);
+ if (targ->to_xclose != NULL)
+ targ->to_xclose (targ, quitting);
+ else if (targ->to_close != NULL)
+ targ->to_close (quitting);
}
-
static void
-debug_to_post_attach (pid)
- int pid;
+debug_to_attach (char *args, int from_tty)
{
- debug_target.to_post_attach (pid);
+ debug_target.to_attach (args, from_tty);
- fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
+ fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty);
}
-static void
-debug_to_require_attach (args, from_tty)
- 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 (args, from_tty)
- char *args;
- int from_tty;
+debug_to_post_attach (int pid)
{
- debug_target.to_detach (args, from_tty);
+ debug_target.to_post_attach (pid);
- fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty);
+ fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
}
static void
-debug_to_require_detach (pid, args, from_tty)
- int pid;
- char *args;
- int from_tty;
+debug_to_detach (char *args, int from_tty)
{
- debug_target.to_require_detach (pid, args, from_tty);
+ debug_target.to_detach (args, from_tty);
- fprintf_unfiltered (gdb_stdlog,
- "target_require_detach (%d, %s, %d)\n", pid, args, from_tty);
+ fprintf_unfiltered (gdb_stdlog, "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_to_resume (ptid_t ptid, int step, enum target_signal siggnal)
{
- debug_target.to_resume (pid, step, siggnal);
+ debug_target.to_resume (ptid, step, siggnal);
- fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", pid,
+ fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", PIDGET (ptid),
step ? "step" : "continue",
target_signal_to_name (siggnal));
}
-static int
-debug_to_wait (pid, status)
- int pid;
- struct target_waitstatus *status;
+static ptid_t
+debug_to_wait (ptid_t ptid, struct target_waitstatus *status)
{
- int retval;
+ ptid_t retval;
- retval = debug_target.to_wait (pid, status);
+ retval = debug_target.to_wait (ptid, status);
fprintf_unfiltered (gdb_stdlog,
- "target_wait (%d, status) = %d, ", pid, retval);
+ "target_wait (%d, status) = %d, ", PIDGET (ptid),
+ PIDGET (retval));
fprintf_unfiltered (gdb_stdlog, "status->kind = ");
switch (status->kind)
{
}
static void
-debug_to_post_wait (pid, status)
- int pid;
- int status;
-{
- debug_target.to_post_wait (pid, status);
-
- fprintf_unfiltered (gdb_stdlog, "target_post_wait (%d, %d)\n",
- pid, status);
+debug_print_register (const char * func,
+ struct regcache *regcache, int regno)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ fprintf_unfiltered (gdb_stdlog, "%s ", func);
+ if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)
+ && gdbarch_register_name (gdbarch, regno) != NULL
+ && gdbarch_register_name (gdbarch, regno)[0] != '\0')
+ fprintf_unfiltered (gdb_stdlog, "(%s)",
+ gdbarch_register_name (gdbarch, regno));
+ else
+ fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
+ if (regno >= 0 && regno < gdbarch_num_regs (gdbarch))
+ {
+ int i, size = register_size (gdbarch, regno);
+ unsigned char buf[MAX_REGISTER_SIZE];
+ regcache_raw_collect (regcache, regno, buf);
+ fprintf_unfiltered (gdb_stdlog, " = ");
+ for (i = 0; i < size; i++)
+ {
+ fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
+ }
+ if (size <= sizeof (LONGEST))
+ {
+ ULONGEST val = extract_unsigned_integer (buf, size);
+ fprintf_unfiltered (gdb_stdlog, " %s %s",
+ core_addr_to_string_nz (val), plongest (val));
+ }
+ }
+ fprintf_unfiltered (gdb_stdlog, "\n");
}
static void
-debug_to_fetch_registers (regno)
- int regno;
+debug_to_fetch_registers (struct regcache *regcache, 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");
+ debug_target.to_fetch_registers (regcache, regno);
+ debug_print_register ("target_fetch_registers", regcache, regno);
}
static void
-debug_to_store_registers (regno)
- int regno;
+debug_to_store_registers (struct regcache *regcache, 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);
+ debug_target.to_store_registers (regcache, regno);
+ debug_print_register ("target_store_registers", regcache, regno);
+ fprintf_unfiltered (gdb_stdlog, "\n");
}
static void
-debug_to_prepare_to_store ()
+debug_to_prepare_to_store (struct regcache *regcache)
{
- debug_target.to_prepare_to_store ();
+ debug_target.to_prepare_to_store (regcache);
fprintf_unfiltered (gdb_stdlog, "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;
+deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *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, target);
+ retval = debug_target.deprecated_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;
for (i = 0; i < retval; i++)
{
if ((((long) &(myaddr[i])) & 0xf) == 0)
- fprintf_unfiltered (gdb_stdlog, "\n");
+ {
+ if (targetdebug < 2 && i > 0)
+ {
+ fprintf_unfiltered (gdb_stdlog, " ...");
+ break;
+ }
+ fprintf_unfiltered (gdb_stdlog, "\n");
+ }
+
fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
}
}
}
static void
-debug_to_files_info (target)
- struct target_ops *target;
+debug_to_files_info (struct target_ops *target)
{
debug_target.to_files_info (target);
}
static int
-debug_to_insert_breakpoint (addr, save)
- CORE_ADDR addr;
- char *save;
+debug_to_insert_breakpoint (struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_insert_breakpoint (addr, save);
+ retval = debug_target.to_insert_breakpoint (bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_insert_breakpoint (0x%lx, xxx) = %ld\n",
- (unsigned long) addr,
+ (unsigned long) bp_tgt->placed_address,
(unsigned long) retval);
return retval;
}
static int
-debug_to_remove_breakpoint (addr, save)
- CORE_ADDR addr;
- char *save;
+debug_to_remove_breakpoint (struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_remove_breakpoint (addr, save);
+ retval = debug_target.to_remove_breakpoint (bp_tgt);
fprintf_unfiltered (gdb_stdlog,
"target_remove_breakpoint (0x%lx, xxx) = %ld\n",
- (unsigned long) addr,
+ (unsigned long) bp_tgt->placed_address,
(unsigned long) retval);
return retval;
}
-static void
-debug_to_terminal_init ()
+static int
+debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty)
{
- debug_target.to_terminal_init ();
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
+ retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
+ (unsigned long) type,
+ (unsigned long) cnt,
+ (unsigned long) from_tty,
+ (unsigned long) retval);
+ return retval;
}
-static void
-debug_to_terminal_inferior ()
+static int
+debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
{
- debug_target.to_terminal_inferior ();
+ CORE_ADDR retval;
- fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
+ retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "TARGET_REGION_OK_FOR_HW_WATCHPOINT (%ld, %ld) = 0x%lx\n",
+ (unsigned long) addr,
+ (unsigned long) len,
+ (unsigned long) retval);
+ return retval;
}
-static void
-debug_to_terminal_ours_for_output ()
+static int
+debug_to_stopped_by_watchpoint (void)
{
- debug_target.to_terminal_ours_for_output ();
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
+ retval = debug_target.to_stopped_by_watchpoint ();
+
+ fprintf_unfiltered (gdb_stdlog,
+ "STOPPED_BY_WATCHPOINT () = %ld\n",
+ (unsigned long) retval);
+ return retval;
}
-static void
-debug_to_terminal_ours ()
+static int
+debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr)
{
- debug_target.to_terminal_ours ();
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
+ retval = debug_target.to_stopped_data_address (target, addr);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_stopped_data_address ([0x%lx]) = %ld\n",
+ (unsigned long)*addr,
+ (unsigned long)retval);
+ return retval;
}
-static void
-debug_to_terminal_info (arg, from_tty)
- char *arg;
- int from_tty;
+static int
+debug_to_watchpoint_addr_within_range (struct target_ops *target,
+ CORE_ADDR addr,
+ CORE_ADDR start, int length)
{
- debug_target.to_terminal_info (arg, from_tty);
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
- from_tty);
+ retval = debug_target.to_watchpoint_addr_within_range (target, addr,
+ start, length);
+
+ fprintf_filtered (gdb_stdlog,
+ "target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n",
+ (unsigned long) addr, (unsigned long) start, length,
+ retval);
+ return retval;
}
-static void
-debug_to_kill ()
+static int
+debug_to_insert_hw_breakpoint (struct bp_target_info *bp_tgt)
{
- debug_target.to_kill ();
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_kill ()\n");
+ retval = debug_target.to_insert_hw_breakpoint (bp_tgt);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n",
+ (unsigned long) bp_tgt->placed_address,
+ (unsigned long) retval);
+ return retval;
}
-static void
-debug_to_load (args, from_tty)
- char *args;
- int from_tty;
+static int
+debug_to_remove_hw_breakpoint (struct bp_target_info *bp_tgt)
{
- debug_target.to_load (args, from_tty);
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
+ retval = debug_target.to_remove_hw_breakpoint (bp_tgt);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n",
+ (unsigned long) bp_tgt->placed_address,
+ (unsigned long) retval);
+ return retval;
}
static int
-debug_to_lookup_symbol (name, addrp)
- char *name;
- CORE_ADDR *addrp;
+debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type)
{
int retval;
- retval = debug_target.to_lookup_symbol (name, addrp);
-
- fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
+ retval = debug_target.to_insert_watchpoint (addr, len, type);
+ fprintf_unfiltered (gdb_stdlog,
+ "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n",
+ (unsigned long) addr, len, type, (unsigned long) retval);
return retval;
}
-static void
-debug_to_create_inferior (exec_file, args, env)
- char *exec_file;
- char *args;
- char **env;
+static int
+debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type)
{
- debug_target.to_create_inferior (exec_file, args, env);
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx)\n",
- exec_file, args);
+ retval = debug_target.to_remove_watchpoint (addr, len, type);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n",
+ (unsigned long) addr, len, type, (unsigned long) retval);
+ return retval;
}
static void
-debug_to_post_startup_inferior (pid)
- int pid;
+debug_to_terminal_init (void)
{
- debug_target.to_post_startup_inferior (pid);
+ debug_target.to_terminal_init ();
- fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
- pid);
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
}
static void
-debug_to_acknowledge_created_inferior (pid)
- int pid;
+debug_to_terminal_inferior (void)
{
- debug_target.to_acknowledge_created_inferior (pid);
+ debug_target.to_terminal_inferior ();
- fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
- pid);
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
}
static void
-debug_to_clone_and_follow_inferior (child_pid, followed_child)
- int child_pid;
- int *followed_child;
+debug_to_terminal_ours_for_output (void)
{
- debug_target.to_clone_and_follow_inferior (child_pid, followed_child);
+ debug_target.to_terminal_ours_for_output ();
- fprintf_unfiltered (gdb_stdlog,
- "target_clone_and_follow_inferior (%d, %d)\n",
- child_pid, *followed_child);
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
}
static void
-debug_to_post_follow_inferior_by_clone ()
+debug_to_terminal_ours (void)
{
- debug_target.to_post_follow_inferior_by_clone ();
+ debug_target.to_terminal_ours ();
- fprintf_unfiltered (gdb_stdlog, "target_post_follow_inferior_by_clone ()\n");
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
}
-static int
-debug_to_insert_fork_catchpoint (pid)
- int pid;
+static void
+debug_to_terminal_save_ours (void)
{
- int retval;
+ debug_target.to_terminal_save_ours ();
- retval = debug_target.to_insert_fork_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n",
- pid, retval);
-
- return retval;
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n");
}
-static int
-debug_to_remove_fork_catchpoint (pid)
- int pid;
+static void
+debug_to_terminal_info (char *arg, int from_tty)
{
- int retval;
-
- retval = debug_target.to_remove_fork_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
- pid, retval);
+ debug_target.to_terminal_info (arg, from_tty);
- return retval;
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
+ from_tty);
}
-static int
-debug_to_insert_vfork_catchpoint (pid)
- int pid;
+static void
+debug_to_kill (void)
{
- int retval;
+ debug_target.to_kill ();
- retval = debug_target.to_insert_vfork_catchpoint (pid);
+ fprintf_unfiltered (gdb_stdlog, "target_kill ()\n");
+}
- fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n",
- pid, retval);
+static void
+debug_to_load (char *args, int from_tty)
+{
+ debug_target.to_load (args, from_tty);
- return retval;
+ fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
}
static int
-debug_to_remove_vfork_catchpoint (pid)
- int pid;
+debug_to_lookup_symbol (char *name, CORE_ADDR *addrp)
{
int retval;
- retval = debug_target.to_remove_vfork_catchpoint (pid);
+ retval = debug_target.to_lookup_symbol (name, addrp);
- fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
- pid, retval);
+ fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
return retval;
}
-static int
-debug_to_has_forked (pid, child_pid)
- int pid;
- int *child_pid;
+static void
+debug_to_create_inferior (char *exec_file, char *args, char **env,
+ int from_tty)
{
- int has_forked;
-
- has_forked = debug_target.to_has_forked (pid, child_pid);
+ debug_target.to_create_inferior (exec_file, args, env, from_tty);
- fprintf_unfiltered (gdb_stdlog, "target_has_forked (%d, %d) = %d\n",
- pid, *child_pid, has_forked);
-
- return has_forked;
+ fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx, %d)\n",
+ exec_file, args, from_tty);
}
-static int
-debug_to_has_vforked (pid, child_pid)
- int pid;
- int *child_pid;
+static void
+debug_to_post_startup_inferior (ptid_t ptid)
{
- int has_vforked;
-
- has_vforked = debug_target.to_has_vforked (pid, child_pid);
+ debug_target.to_post_startup_inferior (ptid);
- fprintf_unfiltered (gdb_stdlog, "target_has_vforked (%d, %d) = %d\n",
- pid, *child_pid, has_vforked);
-
- return has_vforked;
+ fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
+ PIDGET (ptid));
}
-static int
-debug_to_can_follow_vfork_prior_to_exec ()
+static void
+debug_to_acknowledge_created_inferior (int pid)
{
- 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);
+ debug_target.to_acknowledge_created_inferior (pid);
- return can_immediately_follow_vfork;
+ fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
+ pid);
}
static void
-debug_to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child)
- int parent_pid;
- int followed_parent;
- int child_pid;
- int followed_child;
+debug_to_insert_fork_catchpoint (int pid)
{
- debug_target.to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child);
+ debug_target.to_insert_fork_catchpoint (pid);
- fprintf_unfiltered (gdb_stdlog,
- "target_post_follow_vfork (%d, %d, %d, %d)\n",
- parent_pid, followed_parent, child_pid, followed_child);
+ fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n",
+ pid);
}
static int
-debug_to_insert_exec_catchpoint (pid)
- int pid;
+debug_to_remove_fork_catchpoint (int pid)
{
int retval;
- retval = debug_target.to_insert_exec_catchpoint (pid);
+ retval = debug_target.to_remove_fork_catchpoint (pid);
- fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n",
+ fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
pid, retval);
return retval;
}
-static int
-debug_to_remove_exec_catchpoint (pid)
- int pid;
+static void
+debug_to_insert_vfork_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);
+ debug_target.to_insert_vfork_catchpoint (pid);
- return retval;
+ fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n",
+ pid);
}
static int
-debug_to_has_execd (pid, execd_pathname)
- int pid;
- char **execd_pathname;
+debug_to_remove_vfork_catchpoint (int pid)
{
- int has_execd;
+ int retval;
- has_execd = debug_target.to_has_execd (pid, execd_pathname);
+ retval = debug_target.to_remove_vfork_catchpoint (pid);
- fprintf_unfiltered (gdb_stdlog, "target_has_execd (%d, %s) = %d\n",
- pid, (*execd_pathname ? *execd_pathname : "<NULL>"),
- has_execd);
+ fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
+ pid, retval);
- return has_execd;
+ return retval;
}
-static int
-debug_to_reported_exec_events_per_exec_call ()
+static void
+debug_to_insert_exec_catchpoint (int pid)
{
- 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);
+ debug_target.to_insert_exec_catchpoint (pid);
- return reported_exec_events;
+ fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n",
+ pid);
}
static int
-debug_to_has_syscall_event (pid, kind, syscall_id)
- int pid;
- enum target_waitkind *kind;
- int *syscall_id;
+debug_to_remove_exec_catchpoint (int pid)
{
- int has_syscall_event;
- char *kind_spelling = "??";
+ int retval;
- 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;
- }
- }
+ retval = debug_target.to_remove_exec_catchpoint (pid);
- fprintf_unfiltered (gdb_stdlog,
- "target_has_syscall_event (%d, %s, %d) = %d\n",
- pid, kind_spelling, *syscall_id, has_syscall_event);
+ fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n",
+ pid, retval);
- return has_syscall_event;
+ return retval;
}
static int
-debug_to_has_exited (pid, wait_status, exit_status)
- int pid;
- int wait_status;
- int *exit_status;
+debug_to_has_exited (int pid, int wait_status, int *exit_status)
{
int has_exited;
}
static void
-debug_to_mourn_inferior ()
+debug_to_mourn_inferior (void)
{
debug_target.to_mourn_inferior ();
}
static int
-debug_to_can_run ()
+debug_to_can_run (void)
{
int retval;
}
static void
-debug_to_notice_signals (pid)
- int pid;
+debug_to_notice_signals (ptid_t ptid)
{
- debug_target.to_notice_signals (pid);
+ debug_target.to_notice_signals (ptid);
- fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", pid);
+ fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n",
+ PIDGET (ptid));
}
static int
-debug_to_thread_alive (pid)
- int pid;
+debug_to_thread_alive (ptid_t ptid)
{
int retval;
- retval = debug_target.to_thread_alive (pid);
+ retval = debug_target.to_thread_alive (ptid);
fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
- pid, retval);
+ PIDGET (ptid), retval);
return retval;
}
static void
-debug_to_find_new_threads ()
+debug_to_find_new_threads (void)
{
debug_target.to_find_new_threads ();
}
static void
-debug_to_stop ()
-{
- debug_target.to_stop ();
-
- fprintf_unfiltered (gdb_stdlog, "target_stop ()\n");
-}
-
-static int
-debug_to_query (type, req, resp, siz)
- int type;
- char *req;
- char *resp;
- int *siz;
+debug_to_stop (ptid_t ptid)
{
- 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);
+ debug_target.to_stop (ptid);
- return retval;
+ fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n",
+ target_pid_to_str (ptid));
}
static void
fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command);
}
-static struct symtab_and_line *
-debug_to_enable_exception_callback (kind, enable)
- 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 ()
-{
- 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 (pid)
- int pid;
+debug_to_pid_to_exec_file (int pid)
{
char *exec_file;
return exec_file;
}
-static char *
-debug_to_core_file_to_sym_file (core)
- 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 ()
+setup_target_debug (void)
{
memcpy (&debug_target, ¤t_target, sizeof debug_target);
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.deprecated_xfer_memory = deprecated_debug_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_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint;
+ current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint;
+ current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint;
+ current_target.to_insert_watchpoint = debug_to_insert_watchpoint;
+ current_target.to_remove_watchpoint = debug_to_remove_watchpoint;
+ current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint;
+ current_target.to_stopped_data_address = debug_to_stopped_data_address;
+ current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range;
+ current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint;
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_save_ours = debug_to_terminal_save_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_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_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
|| (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."));
+ target_rcmd (cmd, gdb_stdtarg);
+}
+
+/* Print the name of each layers of our target stack. */
+
+static void
+maintenance_print_target_stack (char *cmd, int from_tty)
+{
+ struct target_ops *t;
+
+ printf_filtered (_("The current target stack is:\n"));
+
+ for (t = target_stack; t != NULL; t = t->beneath)
{
- error ("\"monitor\" command not supported by this target.\n");
+ printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname);
}
- target_rcmd (cmd, gdb_stdtarg);
+}
+
+/* Controls if async mode is permitted. */
+int target_async_permitted = 0;
+
+/* The set command writes to this variable. If the inferior is
+ executing, linux_nat_async_permitted is *not* updated. */
+static int target_async_permitted_1 = 0;
+
+static void
+set_maintenance_target_async_permitted (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ if (target_has_execution)
+ {
+ target_async_permitted_1 = target_async_permitted;
+ error (_("Cannot change this setting while the inferior is running."));
+ }
+
+ target_async_permitted = target_async_permitted_1;
+}
+
+static void
+show_maintenance_target_async_permitted (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("\
+Controlling the inferior in asynchronous mode is %s.\n"), value);
}
void
-initialize_targets ()
+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_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_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\
+Set target debugging."), _("\
+Show target debugging."), _("\
+When non-zero, target debugging is enabled. Higher numbers are more\n\
+verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
+command."),
+ NULL,
+ show_targetdebug,
+ &setdebuglist, &showdebuglist);
+
+ add_setshow_boolean_cmd ("trust-readonly-sections", class_support,
+ &trust_readonly, _("\
+Set mode for reading from readonly sections."), _("\
+Show mode for reading from readonly sections."), _("\
+When this mode is on, memory reads from readonly sections (such as .text)\n\
+will be read from the object file instead of from the target. This will\n\
+result in significant performance improvement for remote targets."),
+ NULL,
+ show_trust_readonly,
+ &setlist, &showlist);
add_com ("monitor", class_obscure, do_monitor_command,
- "Send a command to the remote monitor (remote targets only).");
-
- if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
- abort ();
+ _("Send a command to the remote monitor (remote targets only)."));
+
+ add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack,
+ _("Print the name of each layer of the internal target stack."),
+ &maintenanceprintlist);
+
+ add_setshow_boolean_cmd ("target-async", no_class,
+ &target_async_permitted_1, _("\
+Set whether gdb controls the inferior in asynchronous mode."), _("\
+Show whether gdb controls the inferior in asynchronous mode."), _("\
+Tells gdb whether to control the inferior in asynchronous mode."),
+ set_maintenance_target_async_permitted,
+ show_maintenance_target_async_permitted,
+ &setlist,
+ &showlist);
+
+ target_dcache = dcache_init ();
}
projects / deliverable / binutils-gdb.git / blobdiff