/* Select target systems and architectures at runtime for GDB.
- Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2014 Free Software Foundation, Inc.
Contributed by Cygnus Support.
#include "defs.h"
#include <errno.h>
-#include "gdb_string.h"
+#include <string.h>
#include "target.h"
+#include "target-dcache.h"
#include "gdbcmd.h"
#include "symtab.h"
#include "inferior.h"
#include "bfd.h"
#include "symfile.h"
#include "objfiles.h"
-#include "gdb_wait.h"
#include "dcache.h"
#include <signal.h>
#include "regcache.h"
#include "solib.h"
#include "exec.h"
#include "inline-frame.h"
+#include "tracepoint.h"
+#include "gdb/fileio.h"
+#include "agent.h"
static void target_info (char *, int);
-static void kill_or_be_killed (int);
-
-static void default_terminal_info (char *, int);
+static void default_terminal_info (struct target_ops *, const 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 int default_region_ok_for_hw_watchpoint (struct target_ops *,
+ CORE_ADDR, int);
-static void tcomplain (void) ATTR_NORETURN;
+static void tcomplain (void) ATTRIBUTE_NORETURN;
static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
static int return_minus_one (void);
+static void *return_null (void);
+
void target_ignore (void);
static void target_command (char *, int);
static struct target_ops *find_default_run_target (char *);
-static void nosupport_runtime (void);
+static target_xfer_partial_ftype default_xfer_partial;
-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);
+static struct gdbarch *default_thread_architecture (struct target_ops *ops,
+ ptid_t ptid);
-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 find_default_can_async_p (struct target_ops *ignore);
-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 int find_default_is_async_p (struct target_ops *ignore);
-static struct gdbarch *default_thread_architecture (struct target_ops *ops,
- ptid_t ptid);
+#include "target-delegates.c"
static void init_dummy_target (void);
static void debug_to_open (char *, int);
-static void debug_to_prepare_to_store (struct regcache *);
+static void debug_to_prepare_to_store (struct target_ops *self,
+ struct regcache *);
static void debug_to_files_info (struct target_ops *);
-static int debug_to_insert_breakpoint (struct gdbarch *,
+static int debug_to_insert_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
-static int debug_to_remove_breakpoint (struct gdbarch *,
+static int debug_to_remove_breakpoint (struct target_ops *, struct gdbarch *,
struct bp_target_info *);
-static int debug_to_can_use_hw_breakpoint (int, int, int);
+static int debug_to_can_use_hw_breakpoint (struct target_ops *self,
+ int, int, int);
-static int debug_to_insert_hw_breakpoint (struct gdbarch *,
+static int debug_to_insert_hw_breakpoint (struct target_ops *self,
+ struct gdbarch *,
struct bp_target_info *);
-static int debug_to_remove_hw_breakpoint (struct gdbarch *,
+static int debug_to_remove_hw_breakpoint (struct target_ops *self,
+ struct gdbarch *,
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_insert_watchpoint (struct target_ops *self,
+ CORE_ADDR, int, int,
+ struct expression *);
-static int debug_to_stopped_by_watchpoint (void);
+static int debug_to_remove_watchpoint (struct target_ops *self,
+ CORE_ADDR, int, int,
+ struct expression *);
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 int debug_to_region_ok_for_hw_watchpoint (struct target_ops *self,
+ CORE_ADDR, int);
-static void debug_to_terminal_init (void);
+static int debug_to_can_accel_watchpoint_condition (struct target_ops *self,
+ CORE_ADDR, int, int,
+ struct expression *);
-static void debug_to_terminal_inferior (void);
+static void debug_to_terminal_init (struct target_ops *self);
-static void debug_to_terminal_ours_for_output (void);
+static void debug_to_terminal_inferior (struct target_ops *self);
-static void debug_to_terminal_save_ours (void);
+static void debug_to_terminal_ours_for_output (struct target_ops *self);
-static void debug_to_terminal_ours (void);
+static void debug_to_terminal_save_ours (struct target_ops *self);
-static void debug_to_terminal_info (char *, int);
+static void debug_to_terminal_ours (struct target_ops *self);
-static void debug_to_load (char *, int);
+static void debug_to_load (struct target_ops *self, char *, int);
-static int debug_to_lookup_symbol (char *, CORE_ADDR *);
+static int debug_to_can_run (struct target_ops *self);
-static int debug_to_can_run (void);
-
-static void debug_to_notice_signals (ptid_t);
-
-static void debug_to_stop (ptid_t);
-
-/* 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;
+static void debug_to_stop (struct target_ops *self, ptid_t);
/* Pointer to array of target architecture structures; the 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;
-unsigned target_struct_index;
unsigned target_struct_allocsize;
#define DEFAULT_ALLOCSIZE 10
static int show_memory_breakpoints = 0;
-/* Non-zero if we want to see trace of target level stuff. */
+/* These globals control whether GDB attempts to perform these
+ operations; they are useful for targets that need to prevent
+ inadvertant disruption, such as in non-stop mode. */
-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);
-}
+int may_write_registers = 1;
-static void setup_target_debug (void);
+int may_write_memory = 1;
-/* The option sets this. */
-static int stack_cache_enabled_p_1 = 1;
-/* And set_stack_cache_enabled_p updates this.
- The reason for the separation is so that we don't flush the cache for
- on->on transitions. */
-static int stack_cache_enabled_p = 1;
+int may_insert_breakpoints = 1;
-/* This is called *after* the stack-cache has been set.
- Flush the cache for off->on and on->off transitions.
- There's no real need to flush the cache for on->off transitions,
- except cleanliness. */
+int may_insert_tracepoints = 1;
-static void
-set_stack_cache_enabled_p (char *args, int from_tty,
- struct cmd_list_element *c)
-{
- if (stack_cache_enabled_p != stack_cache_enabled_p_1)
- target_dcache_invalidate ();
+int may_insert_fast_tracepoints = 1;
- stack_cache_enabled_p = stack_cache_enabled_p_1;
-}
+int may_stop = 1;
+
+/* Non-zero if we want to see trace of target level stuff. */
+static unsigned int targetdebug = 0;
static void
-show_stack_cache_enabled_p (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
+show_targetdebug (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value);
+ fprintf_filtered (file, _("Target debugging is %s.\n"), value);
}
-/* Cache of memory operations, to speed up remote access. */
-static DCACHE *target_dcache;
-
-/* Invalidate the target dcache. */
-
-void
-target_dcache_invalidate (void)
-{
- dcache_invalidate (target_dcache);
-}
+static void setup_target_debug (void);
/* The user just typed 'target' without the name of a target. */
}
int
-default_child_has_execution (struct target_ops *ops)
+default_child_has_execution (struct target_ops *ops, ptid_t the_ptid)
{
/* If there's no thread selected, then we can't make it run through
hoops. */
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (ptid_equal (the_ptid, null_ptid))
return 0;
return 1;
}
int
-target_has_execution_1 (void)
+target_has_execution_1 (ptid_t the_ptid)
{
struct target_ops *t;
for (t = current_target.beneath; t != NULL; t = t->beneath)
- if (t->to_has_execution (t))
+ if (t->to_has_execution (t, the_ptid))
return 1;
return 0;
}
-/* Add a possible target architecture to the list. */
+int
+target_has_execution_current (void)
+{
+ return target_has_execution_1 (inferior_ptid);
+}
+
+/* Complete initialization of T. This ensures that various fields in
+ T are set, if needed by the target implementation. */
void
-add_target (struct target_ops *t)
+complete_target_initialization (struct target_ops *t)
{
/* Provide default values for all "must have" methods. */
if (t->to_xfer_partial == NULL)
t->to_has_registers = (int (*) (struct target_ops *)) return_zero;
if (t->to_has_execution == NULL)
- t->to_has_execution = (int (*) (struct target_ops *)) return_zero;
+ t->to_has_execution = (int (*) (struct target_ops *, ptid_t)) return_zero;
+
+ install_delegators (t);
+}
+
+/* Add possible target architecture T to the list and add a new
+ command 'target T->to_shortname'. Set COMPLETER as the command's
+ completer if not NULL. */
+
+void
+add_target_with_completer (struct target_ops *t,
+ completer_ftype *completer)
+{
+ struct cmd_list_element *c;
+
+ complete_target_initialization (t);
if (!target_structs)
{
information on the arguments for a particular protocol, type\n\
`help target ' followed by the protocol name."),
&targetlist, "target ", 0, &cmdlist);
- add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist);
+ c = add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc,
+ &targetlist);
+ if (completer != NULL)
+ set_cmd_completer (c, completer);
+}
+
+/* Add a possible target architecture to the list. */
+
+void
+add_target (struct target_ops *t)
+{
+ add_target_with_completer (t, NULL);
+}
+
+/* See target.h. */
+
+void
+add_deprecated_target_alias (struct target_ops *t, char *alias)
+{
+ struct cmd_list_element *c;
+ char *alt;
+
+ /* If we use add_alias_cmd, here, we do not get the deprecated warning,
+ see PR cli/15104. */
+ c = add_cmd (alias, no_class, t->to_open, t->to_doc, &targetlist);
+ alt = xstrprintf ("target %s", t->to_shortname);
+ deprecate_cmd (c, alt);
}
/* Stub functions */
target_load (char *arg, int from_tty)
{
target_dcache_invalidate ();
- (*current_target.to_load) (arg, from_tty);
+ (*current_target.to_load) (¤t_target, arg, from_tty);
}
void
char **env, int from_tty)
{
struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
{
if (t->to_create_inferior != NULL)
}
internal_error (__FILE__, __LINE__,
- "could not find a target to create inferior");
+ _("could not find a target to create inferior"));
}
void
target_terminal_inferior (void)
{
/* A background resume (``run&'') should leave GDB in control of the
- terminal. */
- if (target_is_async_p () && !sync_execution)
+ terminal. Use target_can_async_p, not target_is_async_p, since at
+ this point the target is not async yet. However, if sync_execution
+ is not set, we know it will become async prior to resume. */
+ if (target_can_async_p () && !sync_execution)
return;
/* If GDB is resuming the inferior in the foreground, install
inferior's terminal modes. */
- (*current_target.to_terminal_inferior) ();
+ (*current_target.to_terminal_inferior) (¤t_target);
}
static int
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 */
+ errno = EIO; /* Can't read/write this location. */
+ return 0; /* No bytes handled. */
}
static void
error (_("You can't do that without a process to debug."));
}
-static int
-nosymbol (char *name, CORE_ADDR *addrp)
-{
- return 1; /* Symbol does not exist in target env */
-}
-
-static void
-nosupport_runtime (void)
-{
- if (ptid_equal (inferior_ptid, null_ptid))
- noprocess ();
- else
- error (_("No run-time support for this"));
-}
-
-
static void
-default_terminal_info (char *args, int from_tty)
+default_terminal_info (struct target_ops *self, const char *args, int from_tty)
{
printf_unfiltered (_("No saved terminal information.\n"));
}
-/* This is the default target_create_inferior and target_attach function.
- If the current target is executing, it asks whether to kill it off.
- If this function returns without calling error(), it has killed off
- the target, and the operation should be attempted. */
-
-static void
-kill_or_be_killed (int from_tty)
-{
- if (target_has_execution)
- {
- 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."));
- return;
- }
- else
- {
- error (_("Program not killed."));
- }
- }
- tcomplain ();
-}
-
/* A default implementation for the to_get_ada_task_ptid target method.
This function builds the PTID by using both LWP and TID as part of
return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid);
}
+static enum exec_direction_kind
+default_execution_direction (void)
+{
+ if (!target_can_execute_reverse)
+ return EXEC_FORWARD;
+ else if (!target_can_async_p ())
+ return EXEC_FORWARD;
+ else
+ gdb_assert_not_reached ("\
+to_execution_direction must be implemented for reverse async");
+}
+
/* 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
/* First, reset current's contents. */
memset (¤t_target, 0, sizeof (current_target));
+ /* Install the delegators. */
+ install_delegators (¤t_target);
+
#define INHERIT(FIELD, TARGET) \
if (!current_target.FIELD) \
current_target.FIELD = (TARGET)->FIELD
INHERIT (to_prepare_to_store, t);
INHERIT (deprecated_xfer_memory, t);
INHERIT (to_files_info, t);
- INHERIT (to_insert_breakpoint, t);
- INHERIT (to_remove_breakpoint, t);
+ /* Do not inherit to_insert_breakpoint. */
+ /* Do not inherit to_remove_breakpoint. */
INHERIT (to_can_use_hw_breakpoint, t);
INHERIT (to_insert_hw_breakpoint, t);
INHERIT (to_remove_hw_breakpoint, t);
+ /* Do not inherit to_ranged_break_num_registers. */
INHERIT (to_insert_watchpoint, t);
INHERIT (to_remove_watchpoint, t);
- INHERIT (to_stopped_data_address, t);
+ /* Do not inherit to_insert_mask_watchpoint. */
+ /* Do not inherit to_remove_mask_watchpoint. */
+ /* Do not inherit to_stopped_data_address. */
INHERIT (to_have_steppable_watchpoint, t);
INHERIT (to_have_continuable_watchpoint, t);
- INHERIT (to_stopped_by_watchpoint, t);
+ /* Do not inherit to_stopped_by_watchpoint. */
INHERIT (to_watchpoint_addr_within_range, t);
INHERIT (to_region_ok_for_hw_watchpoint, t);
+ INHERIT (to_can_accel_watchpoint_condition, t);
+ /* Do not inherit to_masked_watch_num_registers. */
INHERIT (to_terminal_init, t);
INHERIT (to_terminal_inferior, t);
INHERIT (to_terminal_ours_for_output, t);
INHERIT (to_terminal_info, t);
/* Do not inherit to_kill. */
INHERIT (to_load, t);
- INHERIT (to_lookup_symbol, t);
/* Do no inherit to_create_inferior. */
INHERIT (to_post_startup_inferior, t);
- INHERIT (to_acknowledge_created_inferior, t);
INHERIT (to_insert_fork_catchpoint, t);
INHERIT (to_remove_fork_catchpoint, t);
INHERIT (to_insert_vfork_catchpoint, t);
INHERIT (to_remove_exec_catchpoint, t);
INHERIT (to_set_syscall_catchpoint, t);
INHERIT (to_has_exited, t);
- /* Do not inherit to_mourn_inferiour. */
+ /* Do not inherit to_mourn_inferior. */
INHERIT (to_can_run, t);
- INHERIT (to_notice_signals, t);
+ /* Do not inherit to_pass_signals. */
+ /* Do not inherit to_program_signals. */
/* Do not inherit to_thread_alive. */
/* Do not inherit to_find_new_threads. */
/* Do not inherit to_pid_to_str. */
INHERIT (to_extra_thread_info, t);
+ INHERIT (to_thread_name, t);
INHERIT (to_stop, t);
/* Do not inherit to_xfer_partial. */
INHERIT (to_rcmd, t);
INHERIT (to_pid_to_exec_file, t);
INHERIT (to_log_command, t);
INHERIT (to_stratum, t);
- /* Do not inherit to_has_all_memory */
- /* Do not inherit to_has_memory */
- /* Do not inherit to_has_stack */
- /* Do not inherit to_has_registers */
- /* Do not inherit to_has_execution */
+ /* Do not inherit to_has_all_memory. */
+ /* Do not inherit to_has_memory. */
+ /* Do not inherit to_has_stack. */
+ /* Do not inherit to_has_registers. */
+ /* Do not inherit to_has_execution. */
INHERIT (to_has_thread_control, t);
- INHERIT (to_can_async_p, t);
- INHERIT (to_is_async_p, t);
- INHERIT (to_async, t);
- INHERIT (to_async_mask, t);
+ /* Do not inherit to_can_async_p. */
+ /* Do not inherit to_is_async_p. */
+ /* Do not inherit to_async. */
INHERIT (to_find_memory_regions, t);
INHERIT (to_make_corefile_notes, t);
+ INHERIT (to_get_bookmark, t);
+ INHERIT (to_goto_bookmark, t);
/* Do not inherit to_get_thread_local_address. */
INHERIT (to_can_execute_reverse, t);
+ INHERIT (to_execution_direction, t);
INHERIT (to_thread_architecture, t);
/* Do not inherit to_read_description. */
INHERIT (to_get_ada_task_ptid, t);
/* Do not inherit to_search_memory. */
INHERIT (to_supports_multi_process, t);
+ INHERIT (to_supports_enable_disable_tracepoint, t);
+ INHERIT (to_supports_string_tracing, t);
+ INHERIT (to_trace_init, t);
+ INHERIT (to_download_tracepoint, t);
+ INHERIT (to_can_download_tracepoint, t);
+ INHERIT (to_download_trace_state_variable, t);
+ INHERIT (to_enable_tracepoint, t);
+ INHERIT (to_disable_tracepoint, t);
+ INHERIT (to_trace_set_readonly_regions, t);
+ INHERIT (to_trace_start, t);
+ INHERIT (to_get_trace_status, t);
+ INHERIT (to_get_tracepoint_status, t);
+ INHERIT (to_trace_stop, t);
+ INHERIT (to_trace_find, t);
+ INHERIT (to_get_trace_state_variable_value, t);
+ INHERIT (to_save_trace_data, t);
+ INHERIT (to_upload_tracepoints, t);
+ INHERIT (to_upload_trace_state_variables, t);
+ INHERIT (to_get_raw_trace_data, t);
+ INHERIT (to_get_min_fast_tracepoint_insn_len, t);
+ INHERIT (to_set_disconnected_tracing, t);
+ INHERIT (to_set_circular_trace_buffer, t);
+ INHERIT (to_set_trace_buffer_size, t);
+ INHERIT (to_set_trace_notes, t);
+ INHERIT (to_get_tib_address, t);
+ INHERIT (to_set_permissions, t);
+ INHERIT (to_static_tracepoint_marker_at, t);
+ INHERIT (to_static_tracepoint_markers_by_strid, t);
+ INHERIT (to_traceframe_info, t);
+ INHERIT (to_use_agent, t);
+ INHERIT (to_can_use_agent, t);
+ INHERIT (to_augmented_libraries_svr4_read, t);
INHERIT (to_magic, t);
+ INHERIT (to_supports_evaluation_of_breakpoint_conditions, t);
+ INHERIT (to_can_run_breakpoint_commands, t);
/* Do not inherit to_memory_map. */
/* Do not inherit to_flash_erase. */
/* Do not inherit to_flash_done. */
(void (*) (char *, int))
tcomplain);
de_fault (to_close,
- (void (*) (int))
+ (void (*) (struct target_ops *))
target_ignore);
de_fault (to_post_attach,
- (void (*) (int))
+ (void (*) (struct target_ops *, int))
target_ignore);
de_fault (to_prepare_to_store,
- (void (*) (struct regcache *))
+ (void (*) (struct target_ops *, struct regcache *))
noprocess);
de_fault (deprecated_xfer_memory,
- (int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *))
+ (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))
+ (int (*) (struct target_ops *, int, int, int))
return_zero);
de_fault (to_insert_hw_breakpoint,
- (int (*) (struct gdbarch *, struct bp_target_info *))
+ (int (*) (struct target_ops *, struct gdbarch *,
+ struct bp_target_info *))
return_minus_one);
de_fault (to_remove_hw_breakpoint,
- (int (*) (struct gdbarch *, struct bp_target_info *))
+ (int (*) (struct target_ops *, struct gdbarch *,
+ struct bp_target_info *))
return_minus_one);
de_fault (to_insert_watchpoint,
- (int (*) (CORE_ADDR, int, int))
+ (int (*) (struct target_ops *, CORE_ADDR, int, int,
+ struct expression *))
return_minus_one);
de_fault (to_remove_watchpoint,
- (int (*) (CORE_ADDR, int, int))
+ (int (*) (struct target_ops *, CORE_ADDR, int, int,
+ struct expression *))
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_can_accel_watchpoint_condition,
+ (int (*) (struct target_ops *, CORE_ADDR, int, int,
+ struct expression *))
+ return_zero);
de_fault (to_terminal_init,
- (void (*) (void))
+ (void (*) (struct target_ops *))
target_ignore);
de_fault (to_terminal_inferior,
- (void (*) (void))
+ (void (*) (struct target_ops *))
target_ignore);
de_fault (to_terminal_ours_for_output,
- (void (*) (void))
+ (void (*) (struct target_ops *))
target_ignore);
de_fault (to_terminal_ours,
- (void (*) (void))
+ (void (*) (struct target_ops *))
target_ignore);
de_fault (to_terminal_save_ours,
- (void (*) (void))
+ (void (*) (struct target_ops *))
target_ignore);
de_fault (to_terminal_info,
default_terminal_info);
de_fault (to_load,
- (void (*) (char *, int))
+ (void (*) (struct target_ops *, 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))
+ (void (*) (struct target_ops *, ptid_t))
target_ignore);
de_fault (to_insert_fork_catchpoint,
- (void (*) (int))
- tcomplain);
+ (int (*) (struct target_ops *, int))
+ return_one);
de_fault (to_remove_fork_catchpoint,
- (int (*) (int))
- tcomplain);
+ (int (*) (struct target_ops *, int))
+ return_one);
de_fault (to_insert_vfork_catchpoint,
- (void (*) (int))
- tcomplain);
+ (int (*) (struct target_ops *, int))
+ return_one);
de_fault (to_remove_vfork_catchpoint,
- (int (*) (int))
- tcomplain);
+ (int (*) (struct target_ops *, int))
+ return_one);
de_fault (to_insert_exec_catchpoint,
- (void (*) (int))
- tcomplain);
+ (int (*) (struct target_ops *, int))
+ return_one);
de_fault (to_remove_exec_catchpoint,
- (int (*) (int))
- tcomplain);
+ (int (*) (struct target_ops *, int))
+ return_one);
de_fault (to_set_syscall_catchpoint,
- (int (*) (int, int, int, int, int *))
- tcomplain);
+ (int (*) (struct target_ops *, int, int, int, int, int *))
+ return_one);
de_fault (to_has_exited,
- (int (*) (int, int, int *))
+ (int (*) (struct target_ops *, int, int, int *))
return_zero);
de_fault (to_can_run,
+ (int (*) (struct target_ops *))
return_zero);
- de_fault (to_notice_signals,
- (void (*) (ptid_t))
- target_ignore);
de_fault (to_extra_thread_info,
- (char *(*) (struct thread_info *))
- return_zero);
+ (char *(*) (struct target_ops *, struct thread_info *))
+ return_null);
+ de_fault (to_thread_name,
+ (char *(*) (struct target_ops *, struct thread_info *))
+ return_null);
de_fault (to_stop,
- (void (*) (ptid_t))
+ (void (*) (struct target_ops *, ptid_t))
target_ignore);
- current_target.to_xfer_partial = current_xfer_partial;
de_fault (to_rcmd,
- (void (*) (char *, struct ui_file *))
+ (void (*) (struct target_ops *, 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);
+ (char *(*) (struct target_ops *, int))
+ return_null);
de_fault (to_thread_architecture,
default_thread_architecture);
current_target.to_read_description = NULL;
de_fault (to_supports_multi_process,
(int (*) (void))
return_zero);
+ de_fault (to_supports_enable_disable_tracepoint,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_supports_string_tracing,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_trace_init,
+ (void (*) (void))
+ tcomplain);
+ de_fault (to_download_tracepoint,
+ (void (*) (struct bp_location *))
+ tcomplain);
+ de_fault (to_can_download_tracepoint,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_download_trace_state_variable,
+ (void (*) (struct trace_state_variable *))
+ tcomplain);
+ de_fault (to_enable_tracepoint,
+ (void (*) (struct bp_location *))
+ tcomplain);
+ de_fault (to_disable_tracepoint,
+ (void (*) (struct bp_location *))
+ tcomplain);
+ de_fault (to_trace_set_readonly_regions,
+ (void (*) (void))
+ tcomplain);
+ de_fault (to_trace_start,
+ (void (*) (void))
+ tcomplain);
+ de_fault (to_get_trace_status,
+ (int (*) (struct trace_status *))
+ return_minus_one);
+ de_fault (to_get_tracepoint_status,
+ (void (*) (struct breakpoint *, struct uploaded_tp *))
+ tcomplain);
+ de_fault (to_trace_stop,
+ (void (*) (void))
+ tcomplain);
+ de_fault (to_trace_find,
+ (int (*) (enum trace_find_type, int, CORE_ADDR, CORE_ADDR, int *))
+ return_minus_one);
+ de_fault (to_get_trace_state_variable_value,
+ (int (*) (int, LONGEST *))
+ return_zero);
+ de_fault (to_save_trace_data,
+ (int (*) (const char *))
+ tcomplain);
+ de_fault (to_upload_tracepoints,
+ (int (*) (struct uploaded_tp **))
+ return_zero);
+ de_fault (to_upload_trace_state_variables,
+ (int (*) (struct uploaded_tsv **))
+ return_zero);
+ de_fault (to_get_raw_trace_data,
+ (LONGEST (*) (gdb_byte *, ULONGEST, LONGEST))
+ tcomplain);
+ de_fault (to_get_min_fast_tracepoint_insn_len,
+ (int (*) (void))
+ return_minus_one);
+ de_fault (to_set_disconnected_tracing,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_set_circular_trace_buffer,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_set_trace_buffer_size,
+ (void (*) (LONGEST))
+ target_ignore);
+ de_fault (to_set_trace_notes,
+ (int (*) (const char *, const char *, const char *))
+ return_zero);
+ de_fault (to_get_tib_address,
+ (int (*) (ptid_t, CORE_ADDR *))
+ tcomplain);
+ de_fault (to_set_permissions,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_static_tracepoint_marker_at,
+ (int (*) (CORE_ADDR, struct static_tracepoint_marker *))
+ return_zero);
+ de_fault (to_static_tracepoint_markers_by_strid,
+ (VEC(static_tracepoint_marker_p) * (*) (const char *))
+ tcomplain);
+ de_fault (to_traceframe_info,
+ (struct traceframe_info * (*) (void))
+ return_null);
+ de_fault (to_supports_evaluation_of_breakpoint_conditions,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_can_run_breakpoint_commands,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_use_agent,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_can_use_agent,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_augmented_libraries_svr4_read,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_execution_direction, default_execution_direction);
+
#undef de_fault
/* Finally, position the target-stack beneath the squashed
/* Push a new target type into the stack of the existing target accessors,
possibly superseding some of the existing accessors.
- Result is zero if the pushed target ended up on top of the stack,
- nonzero if at least one target is on top of it.
-
Rather than allow an empty stack, we always have the dummy target at
the bottom stratum, so we can call the function vectors without
checking them. */
-int
+void
push_target (struct target_ops *t)
{
struct target_ops **cur;
fprintf_unfiltered (gdb_stderr,
"Magic number of %s target struct wrong\n",
t->to_shortname);
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
}
/* Find the proper stratum to install this target in. */
/* 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);
+ target_close (tmp);
}
/* We have removed all targets in our stratum, now add the new one. */
(*cur) = t;
update_current_target ();
-
- /* Not on top? */
- return (t != target_stack);
}
/* Remove a target_ops vector from the stack, wherever it may be.
if (t->to_stratum == dummy_stratum)
internal_error (__FILE__, __LINE__,
- "Attempt to unpush the dummy target");
+ _("Attempt to unpush the dummy target"));
/* Look for the specified target. Note that we assume that a target
- can only occur once in the target stack. */
+ can only occur once in the target stack. */
for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
{
break;
}
+ /* If we don't find target_ops, quit. Only open targets should be
+ closed. */
if ((*cur) == NULL)
- return 0; /* Didn't find target_ops, quit now */
+ return 0;
- /* 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);
-
- /* Unchain the target */
+ /* Unchain the target. */
tmp = (*cur);
(*cur) = (*cur)->beneath;
tmp->beneath = NULL;
update_current_target ();
- return 1;
-}
-
-void
-pop_target (void)
-{
- target_close (target_stack, 0); /* Let it clean up */
- if (unpush_target (target_stack) == 1)
- return;
+ /* Finally close the target. Note we do this after unchaining, so
+ any target method calls from within the target_close
+ implementation don't end up in T anymore. */
+ target_close (t);
- fprintf_unfiltered (gdb_stderr,
- "pop_target couldn't find target %s\n",
- current_target.to_shortname);
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+ return 1;
}
void
-pop_all_targets_above (enum strata above_stratum, int quitting)
+pop_all_targets_above (enum strata above_stratum)
{
while ((int) (current_target.to_stratum) > (int) above_stratum)
{
- target_close (target_stack, quitting);
if (!unpush_target (target_stack))
{
fprintf_unfiltered (gdb_stderr,
}
void
-pop_all_targets (int quitting)
+pop_all_targets (void)
{
- pop_all_targets_above (dummy_stratum, quitting);
+ pop_all_targets_above (dummy_stratum);
+}
+
+/* Return 1 if T is now pushed in the target stack. Return 0 otherwise. */
+
+int
+target_is_pushed (struct target_ops *t)
+{
+ 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. */
+ if (t->to_magic != OPS_MAGIC)
+ {
+ fprintf_unfiltered (gdb_stderr,
+ "Magic number of %s target struct wrong\n",
+ t->to_shortname);
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
+ }
+
+ for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
+ if (*cur == t)
+ return 1;
+
+ return 0;
}
/* Using the objfile specified in OBJFILE, find the address for the
}
if (target != NULL
- && gdbarch_fetch_tls_load_module_address_p (target_gdbarch))
+ && gdbarch_fetch_tls_load_module_address_p (target_gdbarch ()))
{
ptid_t ptid = inferior_ptid;
volatile struct gdb_exception ex;
CORE_ADDR lm_addr;
/* Fetch the load module address for this objfile. */
- lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch,
+ 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->to_get_thread_local_address (target, ptid, lm_addr, offset);
+ addr = target->to_get_thread_local_address (target, ptid,
+ lm_addr, offset);
}
/* If an error occurred, print TLS related messages here. Otherwise,
throw the error to some higher catcher. */
switch (ex.error)
{
case TLS_NO_LIBRARY_SUPPORT_ERROR:
- error (_("Cannot find thread-local variables in this thread library."));
+ 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);
+ " linker's load module list"), objfile_name (objfile));
else
error (_("Cannot find executable file `%s' in dynamic"
- " linker's load module list"), objfile->name);
+ " linker's load module list"), objfile_name (objfile));
break;
case TLS_NOT_ALLOCATED_YET_ERROR:
if (objfile_is_library)
" thread-local variables in\n"
"the shared library `%s'\n"
"for %s"),
- objfile->name, target_pid_to_str (ptid));
+ objfile_name (objfile), 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));
+ objfile_name (objfile), 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);
+ objfile_name (objfile), 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);
+ objfile_name (objfile), ex.message);
break;
default:
throw_exception (ex);
return addr;
}
+const char *
+target_xfer_status_to_string (enum target_xfer_status err)
+{
+#define CASE(X) case X: return #X
+ switch (err)
+ {
+ CASE(TARGET_XFER_E_IO);
+ CASE(TARGET_XFER_E_UNAVAILABLE);
+ default:
+ return "<unknown>";
+ }
+#undef CASE
+};
+
+
#undef MIN
#define MIN(A, B) (((A) <= (B)) ? (A) : (B))
int
target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
{
- int tlen, origlen, offset, i;
+ int tlen, offset, i;
gdb_byte buf[4];
int errcode = 0;
char *buffer;
buffer = xmalloc (buffer_allocated);
bufptr = buffer;
- origlen = len;
-
while (len > 0)
{
tlen = MIN (len, 4 - (memaddr & 3));
if (errcode != 0)
{
/* The transfer request might have crossed the boundary to an
- unallocated region of memory. Retry the transfer, requesting
+ unallocated region of memory. Retry the transfer, requesting
a single byte. */
tlen = 1;
offset = 0;
if (bufptr - buffer + tlen > buffer_allocated)
{
unsigned int bytes;
+
bytes = bufptr - buffer;
buffer_allocated *= 2;
buffer = xrealloc (buffer, buffer_allocated);
return NULL;
}
-/* Perform a partial memory transfer. The arguments and return
- value are just as for target_xfer_partial. */
+/* Read memory from the live target, even if currently inspecting a
+ traceframe. The return is the same as that of target_read. */
-static LONGEST
-memory_xfer_partial (struct target_ops *ops, enum target_object object,
- void *readbuf, const void *writebuf, ULONGEST memaddr,
- LONGEST len)
+static enum target_xfer_status
+target_read_live_memory (enum target_object object,
+ ULONGEST memaddr, gdb_byte *myaddr, ULONGEST len,
+ ULONGEST *xfered_len)
{
- LONGEST res;
- int reg_len;
- struct mem_region *region;
- struct inferior *inf;
+ enum target_xfer_status ret;
+ struct cleanup *cleanup;
- /* Zero length requests are ok and require no work. */
- if (len == 0)
- return 0;
+ /* Switch momentarily out of tfind mode so to access live memory.
+ Note that this must not clear global state, such as the frame
+ cache, which must still remain valid for the previous traceframe.
+ We may be _building_ the frame cache at this point. */
+ cleanup = make_cleanup_restore_traceframe_number ();
+ set_traceframe_number (-1);
- /* For accesses to unmapped overlay sections, read directly from
- files. Must do this first, as MEMADDR may need adjustment. */
- if (readbuf != NULL && overlay_debugging)
+ ret = target_xfer_partial (current_target.beneath, object, NULL,
+ myaddr, NULL, memaddr, len, xfered_len);
+
+ do_cleanups (cleanup);
+ return ret;
+}
+
+/* Using the set of read-only target sections of OPS, read live
+ read-only memory. Note that the actual reads start from the
+ top-most target again.
+
+ For interface/parameters/return description see target.h,
+ to_xfer_partial. */
+
+static enum target_xfer_status
+memory_xfer_live_readonly_partial (struct target_ops *ops,
+ enum target_object object,
+ gdb_byte *readbuf, ULONGEST memaddr,
+ ULONGEST len, ULONGEST *xfered_len)
+{
+ struct target_section *secp;
+ struct target_section_table *table;
+
+ secp = target_section_by_addr (ops, memaddr);
+ if (secp != NULL
+ && (bfd_get_section_flags (secp->the_bfd_section->owner,
+ secp->the_bfd_section)
+ & SEC_READONLY))
{
- struct obj_section *section = find_pc_overlay (memaddr);
- if (pc_in_unmapped_range (memaddr, section))
+ struct target_section *p;
+ ULONGEST memend = memaddr + len;
+
+ table = target_get_section_table (ops);
+
+ for (p = table->sections; p < table->sections_end; p++)
{
- struct target_section_table *table
- = target_get_section_table (ops);
- const char *section_name = section->the_bfd_section->name;
- memaddr = overlay_mapped_address (memaddr, section);
- return section_table_xfer_memory_partial (readbuf, writebuf,
- memaddr, len,
+ if (memaddr >= p->addr)
+ {
+ if (memend <= p->endaddr)
+ {
+ /* Entire transfer is within this section. */
+ return target_read_live_memory (object, memaddr,
+ readbuf, len, xfered_len);
+ }
+ else if (memaddr >= p->endaddr)
+ {
+ /* This section ends before the transfer starts. */
+ continue;
+ }
+ else
+ {
+ /* This section overlaps the transfer. Just do half. */
+ len = p->endaddr - memaddr;
+ return target_read_live_memory (object, memaddr,
+ readbuf, len, xfered_len);
+ }
+ }
+ }
+ }
+
+ return TARGET_XFER_EOF;
+}
+
+/* Read memory 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. */
+
+static enum target_xfer_status
+raw_memory_xfer_partial (struct target_ops *ops, gdb_byte *readbuf,
+ const gdb_byte *writebuf, ULONGEST memaddr, LONGEST len,
+ ULONGEST *xfered_len)
+{
+ enum target_xfer_status res;
+
+ do
+ {
+ res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL,
+ readbuf, writebuf, memaddr, len,
+ xfered_len);
+ if (res == TARGET_XFER_OK)
+ break;
+
+ /* Stop if the target reports that the memory is not available. */
+ if (res == TARGET_XFER_E_UNAVAILABLE)
+ break;
+
+ /* We want to continue past core files to executables, but not
+ past a running target's memory. */
+ if (ops->to_has_all_memory (ops))
+ break;
+
+ ops = ops->beneath;
+ }
+ while (ops != NULL);
+
+ return res;
+}
+
+/* Perform a partial memory transfer.
+ For docs see target.h, to_xfer_partial. */
+
+static enum target_xfer_status
+memory_xfer_partial_1 (struct target_ops *ops, enum target_object object,
+ gdb_byte *readbuf, const gdb_byte *writebuf, ULONGEST memaddr,
+ ULONGEST len, ULONGEST *xfered_len)
+{
+ enum target_xfer_status res;
+ int reg_len;
+ struct mem_region *region;
+ struct inferior *inf;
+
+ /* For accesses to unmapped overlay sections, read directly from
+ files. Must do this first, as MEMADDR may need adjustment. */
+ if (readbuf != NULL && overlay_debugging)
+ {
+ struct obj_section *section = find_pc_overlay (memaddr);
+
+ if (pc_in_unmapped_range (memaddr, section))
+ {
+ struct target_section_table *table
+ = target_get_section_table (ops);
+ const char *section_name = section->the_bfd_section->name;
+
+ memaddr = overlay_mapped_address (memaddr, section);
+ return section_table_xfer_memory_partial (readbuf, writebuf,
+ memaddr, len, xfered_len,
table->sections,
table->sections_end,
section_name);
secp = target_section_by_addr (ops, memaddr);
if (secp != NULL
- && (bfd_get_section_flags (secp->bfd, secp->the_bfd_section)
+ && (bfd_get_section_flags (secp->the_bfd_section->owner,
+ secp->the_bfd_section)
& SEC_READONLY))
{
table = target_get_section_table (ops);
return section_table_xfer_memory_partial (readbuf, writebuf,
- memaddr, len,
+ memaddr, len, xfered_len,
table->sections,
table->sections_end,
NULL);
}
}
+ /* If reading unavailable memory in the context of traceframes, and
+ this address falls within a read-only section, fallback to
+ reading from live memory. */
+ if (readbuf != NULL && get_traceframe_number () != -1)
+ {
+ VEC(mem_range_s) *available;
+
+ /* If we fail to get the set of available memory, then the
+ target does not support querying traceframe info, and so we
+ attempt reading from the traceframe anyway (assuming the
+ target implements the old QTro packet then). */
+ if (traceframe_available_memory (&available, memaddr, len))
+ {
+ struct cleanup *old_chain;
+
+ old_chain = make_cleanup (VEC_cleanup(mem_range_s), &available);
+
+ if (VEC_empty (mem_range_s, available)
+ || VEC_index (mem_range_s, available, 0)->start != memaddr)
+ {
+ /* Don't read into the traceframe's available
+ memory. */
+ if (!VEC_empty (mem_range_s, available))
+ {
+ LONGEST oldlen = len;
+
+ len = VEC_index (mem_range_s, available, 0)->start - memaddr;
+ gdb_assert (len <= oldlen);
+ }
+
+ do_cleanups (old_chain);
+
+ /* This goes through the topmost target again. */
+ res = memory_xfer_live_readonly_partial (ops, object,
+ readbuf, memaddr,
+ len, xfered_len);
+ if (res == TARGET_XFER_OK)
+ return TARGET_XFER_OK;
+ else
+ {
+ /* No use trying further, we know some memory starting
+ at MEMADDR isn't available. */
+ *xfered_len = len;
+ return TARGET_XFER_E_UNAVAILABLE;
+ }
+ }
+
+ /* Don't try to read more than how much is available, in
+ case the target implements the deprecated QTro packet to
+ cater for older GDBs (the target's knowledge of read-only
+ sections may be outdated by now). */
+ len = VEC_index (mem_range_s, available, 0)->length;
+
+ do_cleanups (old_chain);
+ }
+ }
+
/* Try GDB's internal data cache. */
region = lookup_mem_region (memaddr);
/* region->hi == 0 means there's no upper bound. */
{
case MEM_RO:
if (writebuf != NULL)
- return -1;
+ return TARGET_XFER_E_IO;
break;
case MEM_WO:
if (readbuf != NULL)
- return -1;
+ return TARGET_XFER_E_IO;
break;
case MEM_FLASH:
break;
case MEM_NONE:
- return -1;
+ return TARGET_XFER_E_IO;
}
- inf = find_inferior_pid (ptid_get_pid (inferior_ptid));
+ if (!ptid_equal (inferior_ptid, null_ptid))
+ inf = find_inferior_pid (ptid_get_pid (inferior_ptid));
+ else
+ inf = NULL;
if (inf != NULL
+ /* The dcache reads whole cache lines; that doesn't play well
+ with reading from a trace buffer, because reading outside of
+ the collected memory range fails. */
+ && get_traceframe_number () == -1
&& (region->attrib.cache
- || (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY)))
+ || (stack_cache_enabled_p () && object == TARGET_OBJECT_STACK_MEMORY)
+ || (code_cache_enabled_p () && object == TARGET_OBJECT_CODE_MEMORY)))
{
+ DCACHE *dcache = target_dcache_get_or_init ();
+ int l;
+
if (readbuf != NULL)
- res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf,
- reg_len, 0);
+ l = dcache_xfer_memory (ops, 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 (ops, target_dcache, memaddr,
- (void *) writebuf,
+ l = dcache_xfer_memory (ops, dcache, memaddr, (void *) writebuf,
reg_len, 1);
- if (res <= 0)
- return -1;
+ if (l <= 0)
+ return TARGET_XFER_E_IO;
else
{
- if (readbuf && !show_memory_breakpoints)
- breakpoint_restore_shadows (readbuf, memaddr, reg_len);
- return res;
+ *xfered_len = (ULONGEST) l;
+ return TARGET_XFER_OK;
}
}
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 (ops))
- break;
-
- ops = ops->beneath;
- }
- while (ops != NULL);
-
- if (readbuf && !show_memory_breakpoints)
- breakpoint_restore_shadows (readbuf, memaddr, reg_len);
+ res = raw_memory_xfer_partial (ops, readbuf, writebuf, memaddr, reg_len,
+ xfered_len);
/* Make sure the cache gets updated no matter what - if we are writing
to the stack. Even if this write is not tagged as such, we still need
to update the cache. */
- if (res > 0
+ if (res == TARGET_XFER_OK
&& inf != NULL
&& writebuf != NULL
+ && target_dcache_init_p ()
&& !region->attrib.cache
- && stack_cache_enabled_p
- && object != TARGET_OBJECT_STACK_MEMORY)
+ && ((stack_cache_enabled_p () && object != TARGET_OBJECT_STACK_MEMORY)
+ || (code_cache_enabled_p () && object != TARGET_OBJECT_CODE_MEMORY)))
{
- dcache_update (target_dcache, memaddr, (void *) writebuf, reg_len);
+ DCACHE *dcache = target_dcache_get ();
+
+ dcache_update (dcache, memaddr, (void *) writebuf, reg_len);
}
/* If we still haven't got anything, return the last error. We
return res;
}
+/* Perform a partial memory transfer. For docs see target.h,
+ to_xfer_partial. */
+
+static enum target_xfer_status
+memory_xfer_partial (struct target_ops *ops, enum target_object object,
+ gdb_byte *readbuf, const gdb_byte *writebuf,
+ ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len)
+{
+ enum target_xfer_status res;
+
+ /* Zero length requests are ok and require no work. */
+ if (len == 0)
+ return TARGET_XFER_EOF;
+
+ /* Fill in READBUF with breakpoint shadows, or WRITEBUF with
+ breakpoint insns, thus hiding out from higher layers whether
+ there are software breakpoints inserted in the code stream. */
+ if (readbuf != NULL)
+ {
+ res = memory_xfer_partial_1 (ops, object, readbuf, NULL, memaddr, len,
+ xfered_len);
+
+ if (res == TARGET_XFER_OK && !show_memory_breakpoints)
+ breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res);
+ }
+ else
+ {
+ void *buf;
+ struct cleanup *old_chain;
+
+ /* A large write request is likely to be partially satisfied
+ by memory_xfer_partial_1. We will continually malloc
+ and free a copy of the entire write request for breakpoint
+ shadow handling even though we only end up writing a small
+ subset of it. Cap writes to 4KB to mitigate this. */
+ len = min (4096, len);
+
+ buf = xmalloc (len);
+ old_chain = make_cleanup (xfree, buf);
+ memcpy (buf, writebuf, len);
+
+ breakpoint_xfer_memory (NULL, buf, writebuf, memaddr, len);
+ res = memory_xfer_partial_1 (ops, object, NULL, buf, memaddr, len,
+ xfered_len);
+
+ do_cleanups (old_chain);
+ }
+
+ return res;
+}
+
static void
restore_show_memory_breakpoints (void *arg)
{
make_show_memory_breakpoints_cleanup (int show)
{
int current = show_memory_breakpoints;
- show_memory_breakpoints = show;
+ show_memory_breakpoints = show;
return make_cleanup (restore_show_memory_breakpoints,
(void *) (uintptr_t) current);
}
-static LONGEST
+/* For docs see target.h, to_xfer_partial. */
+
+enum target_xfer_status
target_xfer_partial (struct target_ops *ops,
enum target_object object, const char *annex,
- void *readbuf, const void *writebuf,
- ULONGEST offset, LONGEST len)
+ gdb_byte *readbuf, const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
{
- LONGEST retval;
+ enum target_xfer_status retval;
gdb_assert (ops->to_xfer_partial != NULL);
+ /* Transfer is done when LEN is zero. */
+ if (len == 0)
+ return TARGET_XFER_EOF;
+
+ if (writebuf && !may_write_memory)
+ error (_("Writing to memory is not allowed (addr %s, len %s)"),
+ core_addr_to_string_nz (offset), plongest (len));
+
+ *xfered_len = 0;
+
/* 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 || object == TARGET_OBJECT_STACK_MEMORY)
+ if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY
+ || object == TARGET_OBJECT_CODE_MEMORY)
retval = memory_xfer_partial (ops, object, readbuf,
- writebuf, offset, len);
- else
+ writebuf, offset, len, xfered_len);
+ else if (object == TARGET_OBJECT_RAW_MEMORY)
{
- 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);
+ /* Request the normal memory object from other layers. */
+ retval = raw_memory_xfer_partial (ops, readbuf, writebuf, offset, len,
+ xfered_len);
}
+ else
+ retval = ops->to_xfer_partial (ops, object, annex, readbuf,
+ writebuf, offset, len, xfered_len);
if (targetdebug)
{
const unsigned char *myaddr = NULL;
fprintf_unfiltered (gdb_stdlog,
- "%s:target_xfer_partial (%d, %s, %s, %s, %s, %s) = %s",
+ "%s:target_xfer_partial "
+ "(%d, %s, %s, %s, %s, %s) = %d, %s",
ops->to_shortname,
(int) object,
(annex ? annex : "(null)"),
host_address_to_string (readbuf),
host_address_to_string (writebuf),
core_addr_to_string_nz (offset),
- plongest (len), plongest (retval));
+ pulongest (len), retval,
+ pulongest (*xfered_len));
if (readbuf)
myaddr = readbuf;
if (writebuf)
myaddr = writebuf;
- if (retval > 0 && myaddr != NULL)
+ if (retval == TARGET_XFER_OK && myaddr != NULL)
{
int i;
fputs_unfiltered (", bytes =", gdb_stdlog);
- for (i = 0; i < retval; i++)
+ for (i = 0; i < *xfered_len; i++)
{
if ((((intptr_t) &(myaddr[i])) & 0xf) == 0)
{
fputc_unfiltered ('\n', gdb_stdlog);
}
+
+ /* Check implementations of to_xfer_partial update *XFERED_LEN
+ properly. Do assertion after printing debug messages, so that we
+ can find more clues on assertion failure from debugging messages. */
+ if (retval == TARGET_XFER_OK || retval == TARGET_XFER_E_UNAVAILABLE)
+ gdb_assert (*xfered_len > 0);
+
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.
+/* Read LEN bytes of target memory at address MEMADDR, placing the
+ results in GDB's memory at MYADDR. Returns either 0 for success or
+ TARGET_XFER_E_IO 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 (which will retry until
- it makes no progress, and then return how much was transferred). */
+ it makes no progress, and then return how much was transferred). */
int
-target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
+target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
{
/* Dispatch to the topmost target, not the flattened current_target.
Memory accesses check target->to_has_(all_)memory, and the
myaddr, memaddr, len) == len)
return 0;
else
- return EIO;
+ return TARGET_XFER_E_IO;
+}
+
+/* Like target_read_memory, but specify explicitly that this is a read
+ from the target's raw memory. That is, this read bypasses the
+ dcache, breakpoint shadowing, etc. */
+
+int
+target_read_raw_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
+{
+ /* See comment in target_read_memory about why the request starts at
+ current_target.beneath. */
+ if (target_read (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL,
+ myaddr, memaddr, len) == len)
+ return 0;
+ else
+ return TARGET_XFER_E_IO;
}
/* Like target_read_memory, but specify explicitly that this is a read from
the target's stack. This may trigger different cache behavior. */
int
-target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
+target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
{
- /* Dispatch to the topmost target, not the flattened current_target.
- Memory accesses check target->to_has_(all_)memory, and the
- flattened target doesn't inherit those. */
-
+ /* See comment in target_read_memory about why the request starts at
+ current_target.beneath. */
if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL,
myaddr, memaddr, len) == len)
return 0;
else
- return EIO;
+ return TARGET_XFER_E_IO;
}
+/* Like target_read_memory, but specify explicitly that this is a read from
+ the target's code. This may trigger different cache behavior. */
+
int
-target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len)
+target_read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len)
{
- /* Dispatch to the topmost target, not the flattened current_target.
- Memory accesses check target->to_has_(all_)memory, and the
- flattened target doesn't inherit those. */
+ /* See comment in target_read_memory about why the request starts at
+ current_target.beneath. */
+ if (target_read (current_target.beneath, TARGET_OBJECT_CODE_MEMORY, NULL,
+ myaddr, memaddr, len) == len)
+ return 0;
+ else
+ return TARGET_XFER_E_IO;
+}
+
+/* Write LEN bytes from MYADDR to target memory at address MEMADDR.
+ Returns either 0 for success or TARGET_XFER_E_IO if any
+ error occurs. If an error occurs, no guarantee is made about how
+ much data got written. Callers that can deal with partial writes
+ should call target_write. */
+
+int
+target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len)
+{
+ /* See comment in target_read_memory about why the request starts at
+ current_target.beneath. */
if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL,
myaddr, memaddr, len) == len)
return 0;
else
- return EIO;
+ return TARGET_XFER_E_IO;
+}
+
+/* Write LEN bytes from MYADDR to target raw memory at address
+ MEMADDR. Returns either 0 for success or TARGET_XFER_E_IO
+ if any error occurs. If an error occurs, no guarantee is made
+ about how much data got written. Callers that can deal with
+ partial writes should call target_write. */
+
+int
+target_write_raw_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, ssize_t len)
+{
+ /* See comment in target_read_memory about why the request starts at
+ current_target.beneath. */
+ if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL,
+ myaddr, memaddr, len) == len)
+ return 0;
+ else
+ return TARGET_XFER_E_IO;
}
/* Fetch the target's memory map. */
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",
- hex_string (address), phex (length, 0));
- t->to_flash_erase (t, address, length);
- return;
- }
+ {
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n",
+ hex_string (address), phex (length, 0));
+ t->to_flash_erase (t, address, length);
+ return;
+ }
tcomplain ();
}
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;
- }
+ {
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_flash_done\n");
+ t->to_flash_done (t);
+ return;
+ }
tcomplain ();
}
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"),
+ fprintf_filtered (file,
+ _("Mode for reading from readonly sections is %s.\n"),
value);
}
/* More generic transfers. */
-static LONGEST
+static enum target_xfer_status
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)
+ const gdb_byte *writebuf, ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
{
if (object == TARGET_OBJECT_MEMORY
&& ops->deprecated_xfer_memory != NULL)
"deprecated_xfer_memory" method. */
{
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);
xfered = ops->deprecated_xfer_memory (offset, readbuf, len,
0/*read*/, NULL, ops);
if (xfered > 0)
- return xfered;
+ {
+ *xfered_len = (ULONGEST) xfered;
+ return TARGET_XFER_E_IO;
+ }
else if (xfered == 0 && errno == 0)
/* "deprecated_xfer_memory" uses 0, cross checked against
ERRNO as one indication of an error. */
- return 0;
+ return TARGET_XFER_EOF;
else
- return -1;
+ return TARGET_XFER_E_IO;
}
- 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;
+ {
+ gdb_assert (ops->beneath != NULL);
+ return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
+ readbuf, writebuf, offset, len,
+ xfered_len);
+ }
}
-/* Target vector read/write partial wrapper functions.
-
- NOTE: cagney/2003-10-21: I wonder if having "to_xfer_partial
- (inbuf, outbuf)", instead of separate read/write methods, make life
- easier. */
+/* Target vector read/write partial wrapper functions. */
-static LONGEST
+static enum target_xfer_status
target_read_partial (struct target_ops *ops,
enum target_object object,
const char *annex, gdb_byte *buf,
- ULONGEST offset, LONGEST len)
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
{
- return target_xfer_partial (ops, object, annex, buf, NULL, offset, len);
+ return target_xfer_partial (ops, object, annex, buf, NULL, offset, len,
+ xfered_len);
}
-static LONGEST
+static enum target_xfer_status
target_write_partial (struct target_ops *ops,
enum target_object object,
const char *annex, const gdb_byte *buf,
- ULONGEST offset, LONGEST len)
+ ULONGEST offset, LONGEST len, ULONGEST *xfered_len)
{
- return target_xfer_partial (ops, object, annex, NULL, buf, offset, len);
+ return target_xfer_partial (ops, object, annex, NULL, buf, offset, len,
+ xfered_len);
}
/* Wrappers to perform the full transfer. */
+
+/* For docs on target_read see target.h. */
+
LONGEST
target_read (struct target_ops *ops,
enum target_object object,
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)
- 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);
+ ULONGEST xfered_len;
+ enum target_xfer_status status;
+
+ status = target_read_partial (ops, object, annex,
+ (gdb_byte *) buf + xfered,
+ offset + xfered, len - xfered,
+ &xfered_len);
+
/* Call an observer, notifying them of the xfer progress? */
- if (xfer == 0)
+ if (status == TARGET_XFER_EOF)
return xfered;
- if (xfer < 0)
+ else if (status == TARGET_XFER_OK)
{
- /* 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;
+ xfered += xfered_len;
+ QUIT;
}
- xfered += xfer;
- QUIT;
+ else
+ return -1;
+
}
return len;
}
+/* Assuming that the entire [begin, end) range of memory cannot be
+ read, try to read whatever subrange is possible to read.
-/* An alternative to target_write with progress callbacks. */
+ The function returns, in RESULT, either zero or one memory block.
+ If there's a readable subrange at the beginning, it is completely
+ read and returned. Any further readable subrange will not be read.
+ Otherwise, if there's a readable subrange at the end, it will be
+ completely read and returned. Any readable subranges before it
+ (obviously, not starting at the beginning), will be ignored. In
+ other cases -- either no readable subrange, or readable subrange(s)
+ that is neither at the beginning, or end, nothing is returned.
-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;
+ The purpose of this function is to handle a read across a boundary
+ of accessible memory in a case when memory map is not available.
+ The above restrictions are fine for this case, but will give
+ incorrect results if the memory is 'patchy'. However, supporting
+ 'patchy' memory would require trying to read every single byte,
+ and it seems unacceptable solution. Explicit memory map is
+ recommended for this case -- and target_read_memory_robust will
+ take care of reading multiple ranges then. */
- /* Give the progress callback a chance to set up. */
- if (progress)
- (*progress) (0, baton);
+static void
+read_whatever_is_readable (struct target_ops *ops,
+ ULONGEST begin, ULONGEST end,
+ VEC(memory_read_result_s) **result)
+{
+ gdb_byte *buf = xmalloc (end - begin);
+ ULONGEST current_begin = begin;
+ ULONGEST current_end = end;
+ int forward;
+ memory_read_result_s r;
+ ULONGEST xfered_len;
+
+ /* If we previously failed to read 1 byte, nothing can be done here. */
+ if (end - begin <= 1)
+ {
+ xfree (buf);
+ return;
+ }
- while (xfered < len)
+ /* Check that either first or the last byte is readable, and give up
+ if not. This heuristic is meant to permit reading accessible memory
+ at the boundary of accessible region. */
+ if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL,
+ buf, begin, 1, &xfered_len) == TARGET_XFER_OK)
{
- LONGEST xfer = target_write_partial (ops, object, annex,
- (gdb_byte *) buf + xfered,
- offset + xfered, len - xfered);
+ forward = 1;
+ ++current_begin;
+ }
+ else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL,
+ buf + (end-begin) - 1, end - 1, 1,
+ &xfered_len) == TARGET_XFER_OK)
+ {
+ forward = 0;
+ --current_end;
+ }
+ else
+ {
+ xfree (buf);
+ return;
+ }
- if (xfer == 0)
- return xfered;
- if (xfer < 0)
- return -1;
+ /* Loop invariant is that the [current_begin, current_end) was previously
+ found to be not readable as a whole.
+ Note loop condition -- if the range has 1 byte, we can't divide the range
+ so there's no point trying further. */
+ while (current_end - current_begin > 1)
+ {
+ ULONGEST first_half_begin, first_half_end;
+ ULONGEST second_half_begin, second_half_end;
+ LONGEST xfer;
+ ULONGEST middle = current_begin + (current_end - current_begin)/2;
+
+ if (forward)
+ {
+ first_half_begin = current_begin;
+ first_half_end = middle;
+ second_half_begin = middle;
+ second_half_end = current_end;
+ }
+ else
+ {
+ first_half_begin = middle;
+ first_half_end = current_end;
+ second_half_begin = current_begin;
+ second_half_end = middle;
+ }
+
+ xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL,
+ buf + (first_half_begin - begin),
+ first_half_begin,
+ first_half_end - first_half_begin);
+
+ if (xfer == first_half_end - first_half_begin)
+ {
+ /* This half reads up fine. So, the error must be in the
+ other half. */
+ current_begin = second_half_begin;
+ current_end = second_half_end;
+ }
+ else
+ {
+ /* This half is not readable. Because we've tried one byte, we
+ know some part of this half if actually redable. Go to the next
+ iteration to divide again and try to read.
+
+ We don't handle the other half, because this function only tries
+ to read a single readable subrange. */
+ current_begin = first_half_begin;
+ current_end = first_half_end;
+ }
+ }
+
+ if (forward)
+ {
+ /* The [begin, current_begin) range has been read. */
+ r.begin = begin;
+ r.end = current_begin;
+ r.data = buf;
+ }
+ else
+ {
+ /* The [current_end, end) range has been read. */
+ LONGEST rlen = end - current_end;
+
+ r.data = xmalloc (rlen);
+ memcpy (r.data, buf + current_end - begin, rlen);
+ r.begin = current_end;
+ r.end = end;
+ xfree (buf);
+ }
+ VEC_safe_push(memory_read_result_s, (*result), &r);
+}
+
+void
+free_memory_read_result_vector (void *x)
+{
+ VEC(memory_read_result_s) *v = x;
+ memory_read_result_s *current;
+ int ix;
+
+ for (ix = 0; VEC_iterate (memory_read_result_s, v, ix, current); ++ix)
+ {
+ xfree (current->data);
+ }
+ VEC_free (memory_read_result_s, v);
+}
+
+VEC(memory_read_result_s) *
+read_memory_robust (struct target_ops *ops, ULONGEST offset, LONGEST len)
+{
+ VEC(memory_read_result_s) *result = 0;
+
+ LONGEST xfered = 0;
+ while (xfered < len)
+ {
+ struct mem_region *region = lookup_mem_region (offset + xfered);
+ LONGEST rlen;
+
+ /* If there is no explicit region, a fake one should be created. */
+ gdb_assert (region);
+
+ if (region->hi == 0)
+ rlen = len - xfered;
+ else
+ rlen = region->hi - offset;
+
+ if (region->attrib.mode == MEM_NONE || region->attrib.mode == MEM_WO)
+ {
+ /* Cannot read this region. Note that we can end up here only
+ if the region is explicitly marked inaccessible, or
+ 'inaccessible-by-default' is in effect. */
+ xfered += rlen;
+ }
+ else
+ {
+ LONGEST to_read = min (len - xfered, rlen);
+ gdb_byte *buffer = (gdb_byte *)xmalloc (to_read);
+
+ LONGEST xfer = target_read (ops, TARGET_OBJECT_MEMORY, NULL,
+ (gdb_byte *) buffer,
+ offset + xfered, to_read);
+ /* Call an observer, notifying them of the xfer progress? */
+ if (xfer <= 0)
+ {
+ /* Got an error reading full chunk. See if maybe we can read
+ some subrange. */
+ xfree (buffer);
+ read_whatever_is_readable (ops, offset + xfered,
+ offset + xfered + to_read, &result);
+ xfered += to_read;
+ }
+ else
+ {
+ struct memory_read_result r;
+ r.data = buffer;
+ r.begin = offset + xfered;
+ r.end = r.begin + xfer;
+ VEC_safe_push (memory_read_result_s, result, &r);
+ xfered += xfer;
+ }
+ QUIT;
+ }
+ }
+ return result;
+}
+
+
+/* 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;
+
+ /* Give the progress callback a chance to set up. */
+ if (progress)
+ (*progress) (0, baton);
+
+ while (xfered < len)
+ {
+ ULONGEST xfered_len;
+ enum target_xfer_status status;
+
+ status = target_write_partial (ops, object, annex,
+ (gdb_byte *) buf + xfered,
+ offset + xfered, len - xfered,
+ &xfered_len);
+
+ if (status == TARGET_XFER_EOF)
+ return xfered;
+ if (TARGET_XFER_STATUS_ERROR_P (status))
+ return -1;
+
+ gdb_assert (status == TARGET_XFER_OK);
if (progress)
- (*progress) (xfer, baton);
+ (*progress) (xfered_len, baton);
- xfered += xfer;
+ xfered += xfered_len;
QUIT;
}
return len;
}
+/* For docs on target_write see target.h. */
+
LONGEST
target_write (struct target_ops *ops,
enum target_object object,
{
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
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)
+ ULONGEST xfered_len;
+ enum target_xfer_status status;
+
+ status = target_read_partial (ops, object, annex, &buf[buf_pos],
+ buf_pos, buf_alloc - buf_pos - padding,
+ &xfered_len);
+
+ if (status == TARGET_XFER_EOF)
{
/* Read all there was. */
if (buf_pos == 0)
*buf_p = buf;
return buf_pos;
}
+ else if (status != TARGET_XFER_OK)
+ {
+ /* An error occurred. */
+ xfree (buf);
+ return TARGET_XFER_E_IO;
+ }
- buf_pos += n;
+ buf_pos += xfered_len;
/* If the buffer is filling up, expand it. */
if (buf_alloc < buf_pos * 2)
const char *annex)
{
gdb_byte *buffer;
- LONGEST transferred;
+ char *bufstr;
+ LONGEST i, transferred;
transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1);
+ bufstr = (char *) buffer;
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)");
+ bufstr[transferred] = 0;
+
+ /* Check for embedded NUL bytes; but allow trailing NULs. */
+ for (i = strlen (bufstr); i < transferred; i++)
+ if (bufstr[i] != 0)
+ {
+ warning (_("target object %d, annex %s, "
+ "contained unexpected null characters"),
+ (int) object, annex ? annex : "(none)");
+ break;
+ }
- return (char *) buffer;
+ return bufstr;
}
/* Memory transfer methods. */
for this target). */
if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len)
!= len)
- memory_error (EIO, addr);
+ memory_error (TARGET_XFER_E_IO, addr);
}
ULONGEST
-get_target_memory_unsigned (struct target_ops *ops,
- CORE_ADDR addr, int len, enum bfd_endian byte_order)
+get_target_memory_unsigned (struct target_ops *ops, CORE_ADDR addr,
+ int len, enum bfd_endian byte_order)
{
gdb_byte buf[sizeof (ULONGEST)];
return extract_unsigned_integer (buf, len, byte_order);
}
+/* See target.h. */
+
+int
+target_insert_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
+{
+ if (!may_insert_breakpoints)
+ {
+ warning (_("May not insert breakpoints"));
+ return 1;
+ }
+
+ return current_target.to_insert_breakpoint (¤t_target,
+ gdbarch, bp_tgt);
+}
+
+/* See target.h. */
+
+int
+target_remove_breakpoint (struct gdbarch *gdbarch,
+ struct bp_target_info *bp_tgt)
+{
+ /* This is kind of a weird case to handle, but the permission might
+ have been changed after breakpoints were inserted - in which case
+ we should just take the user literally and assume that any
+ breakpoints should be left in place. */
+ if (!may_insert_breakpoints)
+ {
+ warning (_("May not remove breakpoints"));
+ return 1;
+ }
+
+ return current_target.to_remove_breakpoint (¤t_target,
+ gdbarch, bp_tgt);
+}
+
static void
target_info (char *args, int from_tty)
{
int has_all_mem = 0;
if (symfile_objfile != NULL)
- printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name);
+ printf_unfiltered (_("Symbols from \"%s\".\n"),
+ objfile_name (symfile_objfile));
for (t = target_stack; t != NULL; t = t->beneath)
{
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) (t);
void
target_pre_inferior (int from_tty)
{
- /* Clear out solib state. Otherwise the solib state of the previous
+ /* 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
+ target. This has been observed on GNU/Linux using glibc 2.3. How
to reproduce:
bash$ ./foo&
/* In some OSs, the shared library list is the same/global/shared
across inferiors. If code is shared between processes, so are
memory regions and features. */
- if (!gdbarch_has_global_solist (target_gdbarch))
+ if (!gdbarch_has_global_solist (target_gdbarch ()))
{
no_shared_libraries (NULL, from_tty);
target_clear_description ();
}
+
+ agent_capability_invalidate ();
}
/* Callback for iterate_over_inferiors. Gets rid of the given
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);
+ pop_all_targets_above (file_stratum);
target_pre_inferior (from_tty);
}
/* Detach a target after doing deferred register stores. */
void
-target_detach (char *args, int from_tty)
+target_detach (const char *args, int from_tty)
{
struct target_ops* t;
- if (gdbarch_has_global_breakpoints (target_gdbarch))
+ if (gdbarch_has_global_breakpoints (target_gdbarch ()))
/* Don't remove global breakpoints here. They're removed on
disconnection from the target. */
;
else
/* If we're in breakpoints-always-inserted mode, have to remove
them before detaching. */
- remove_breakpoints ();
+ remove_breakpoints_pid (ptid_get_pid (inferior_ptid));
+
+ prepare_for_detach ();
for (t = current_target.beneath; t != NULL; t = t->beneath)
{
}
}
- internal_error (__FILE__, __LINE__, "could not find a target to detach");
+ internal_error (__FILE__, __LINE__, _("could not find a target to detach"));
}
void
target_wait (ptid_t ptid, struct target_waitstatus *status, int options)
{
struct target_ops *t;
+ ptid_t retval = (current_target.to_wait) (¤t_target, ptid,
+ status, options);
- for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (targetdebug)
{
- if (t->to_wait != NULL)
- {
- ptid_t retval = (*t->to_wait) (t, ptid, status, options);
-
- if (targetdebug)
- {
- char *status_string;
-
- status_string = target_waitstatus_to_string (status);
- fprintf_unfiltered (gdb_stdlog,
- "target_wait (%d, status) = %d, %s\n",
- PIDGET (ptid), PIDGET (retval),
- status_string);
- xfree (status_string);
- }
+ char *status_string;
+ char *options_string;
- return retval;
- }
+ status_string = target_waitstatus_to_string (status);
+ options_string = target_options_to_string (options);
+ fprintf_unfiltered (gdb_stdlog,
+ "target_wait (%d, status, options={%s})"
+ " = %d, %s\n",
+ ptid_get_pid (ptid), options_string,
+ ptid_get_pid (retval), status_string);
+ xfree (status_string);
+ xfree (options_string);
}
- noprocess ();
+ return retval;
}
char *
return normal_pid_to_str (ptid);
}
+char *
+target_thread_name (struct thread_info *info)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_thread_name != NULL)
+ return (*t->to_thread_name) (t, info);
+ }
+
+ return NULL;
+}
+
void
-target_resume (ptid_t ptid, int step, enum target_signal signal)
+target_resume (ptid_t ptid, int step, enum gdb_signal signal)
{
struct target_ops *t;
target_dcache_invalidate ();
+ current_target.to_resume (¤t_target, ptid, step, signal);
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n",
+ ptid_get_pid (ptid),
+ step ? "step" : "continue",
+ gdb_signal_to_name (signal));
+
+ registers_changed_ptid (ptid);
+ set_executing (ptid, 1);
+ set_running (ptid, 1);
+ clear_inline_frame_state (ptid);
+}
+
+void
+target_pass_signals (int numsigs, unsigned char *pass_signals)
+{
+ struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
{
- if (t->to_resume != NULL)
+ if (t->to_pass_signals != NULL)
{
- t->to_resume (t, ptid, step, signal);
if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n",
- PIDGET (ptid),
- step ? "step" : "continue",
- target_signal_to_name (signal));
-
- set_executing (ptid, 1);
- set_running (ptid, 1);
- clear_inline_frame_state (ptid);
+ {
+ int i;
+
+ fprintf_unfiltered (gdb_stdlog, "target_pass_signals (%d, {",
+ numsigs);
+
+ for (i = 0; i < numsigs; i++)
+ if (pass_signals[i])
+ fprintf_unfiltered (gdb_stdlog, " %s",
+ gdb_signal_to_name (i));
+
+ fprintf_unfiltered (gdb_stdlog, " })\n");
+ }
+
+ (*t->to_pass_signals) (t, numsigs, pass_signals);
return;
}
}
+}
- noprocess ();
+void
+target_program_signals (int numsigs, unsigned char *program_signals)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_program_signals != NULL)
+ {
+ if (targetdebug)
+ {
+ int i;
+
+ fprintf_unfiltered (gdb_stdlog, "target_program_signals (%d, {",
+ numsigs);
+
+ for (i = 0; i < numsigs; i++)
+ if (program_signals[i])
+ fprintf_unfiltered (gdb_stdlog, " %s",
+ gdb_signal_to_name (i));
+
+ fprintf_unfiltered (gdb_stdlog, " })\n");
+ }
+
+ (*t->to_program_signals) (t, numsigs, program_signals);
+ return;
+ }
+ }
}
+
/* Look through the list of possible targets for a target that can
follow forks. */
int
-target_follow_fork (int follow_child)
+target_follow_fork (int follow_child, int detach_fork)
{
struct target_ops *t;
{
if (t->to_follow_fork != NULL)
{
- int retval = t->to_follow_fork (t, follow_child);
+ int retval = t->to_follow_fork (t, follow_child, detach_fork);
+
if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n",
- follow_child, retval);
+ fprintf_unfiltered (gdb_stdlog,
+ "target_follow_fork (%d, %d) = %d\n",
+ follow_child, detach_fork, retval);
return retval;
}
}
/* 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");
+ _("could not find a target to follow fork"));
}
void
target_mourn_inferior (void)
{
struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
{
if (t->to_mourn_inferior != NULL)
}
internal_error (__FILE__, __LINE__,
- "could not find a target to follow mourn inferiour");
+ _("could not find a target to follow mourn inferior"));
}
/* Look for a target which can describe architectural features, starting
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));
+ warning (_("Unable to access %s bytes of target "
+ "memory at %s, halting search."),
+ pulongest (search_buf_size), hex_string (start_addr));
do_cleanups (old_cleanups);
return -1;
}
if (found_ptr != NULL)
{
CORE_ADDR found_addr = start_addr + (found_ptr - search_buf);
+
*found_addrp = found_addr;
do_cleanups (old_cleanups);
return 1;
if (search_space_len >= pattern_len)
{
unsigned keep_len = search_buf_size - chunk_size;
- CORE_ADDR read_addr = start_addr + keep_len;
+ CORE_ADDR read_addr = start_addr + chunk_size + keep_len;
int nr_to_read;
/* Copy the trailing part of the previous iteration to the front
search_buf + keep_len, read_addr,
nr_to_read) != nr_to_read)
{
- warning (_("Unable to access target memory at %s, halting search."),
+ warning (_("Unable to access %s bytes of target "
+ "memory at %s, halting search."),
+ plongest (nr_to_read),
hex_string (read_addr));
do_cleanups (old_cleanups);
return -1;
|| t->to_stratum == arch_stratum)
continue;
- error (_("\
-The \"%s\" target does not support \"run\". Try \"help target\" or \"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");
+ 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
}
static int
-find_default_can_async_p (void)
+find_default_can_async_p (struct target_ops *ignore)
{
struct target_ops *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) ();
+ if (t && t->to_can_async_p != delegate_can_async_p)
+ return (t->to_can_async_p) (t);
return 0;
}
static int
-find_default_is_async_p (void)
+find_default_is_async_p (struct target_ops *ignore)
{
struct target_ops *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) ();
+ if (t && t->to_is_async_p != delegate_is_async_p)
+ return (t->to_is_async_p) (t);
return 0;
}
target_supports_non_stop (void)
{
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;
}
+/* Implement the "info proc" command. */
-char *
-target_get_osdata (const char *type)
+int
+target_info_proc (char *args, enum info_proc_what what)
{
- char *document;
struct target_ops *t;
/* If we're already connected to something that can get us OS
if (current_target.to_stratum >= process_stratum)
t = current_target.beneath;
else
- t = find_default_run_target ("get OS data");
+ t = find_default_run_target (NULL);
- if (!t)
- return NULL;
+ for (; t != NULL; t = t->beneath)
+ {
+ if (t->to_info_proc != NULL)
+ {
+ t->to_info_proc (t, args, what);
- return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type);
-}
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_info_proc (\"%s\", %d)\n", args, what);
-static int
-default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
-{
- return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT);
+ return 1;
+ }
+ }
+
+ return 0;
}
static int
-default_watchpoint_addr_within_range (struct target_ops *target,
- CORE_ADDR addr,
- CORE_ADDR start, int length)
+find_default_supports_disable_randomization (void)
{
- return addr >= start && addr < start + length;
-}
+ struct target_ops *t;
-static struct gdbarch *
-default_thread_architecture (struct target_ops *ops, ptid_t ptid)
-{
- return target_gdbarch;
+ t = find_default_run_target (NULL);
+ if (t && t->to_supports_disable_randomization)
+ return (t->to_supports_disable_randomization) ();
+ return 0;
}
-static int
-return_zero (void)
+int
+target_supports_disable_randomization (void)
{
+ struct target_ops *t;
+
+ for (t = ¤t_target; t != NULL; t = t->beneath)
+ if (t->to_supports_disable_randomization)
+ return t->to_supports_disable_randomization ();
+
return 0;
}
-static int
-return_one (void)
+char *
+target_get_osdata (const char *type)
{
- return 1;
-}
+ struct target_ops *t;
-static int
-return_minus_one (void)
-{
- return -1;
+ /* If we're already connected to something that can get us OS
+ related data, use it. Otherwise, try using the native
+ target. */
+ if (current_target.to_stratum >= process_stratum)
+ t = current_target.beneath;
+ else
+ t = find_default_run_target ("get OS data");
+
+ if (!t)
+ return NULL;
+
+ return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type);
}
-/* Find a single runnable target in the stack and return it. If for
- some reason there is more than one, return NULL. */
+/* Determine the current address space of thread PTID. */
-struct target_ops *
-find_run_target (void)
+struct address_space *
+target_thread_address_space (ptid_t ptid)
{
- struct target_ops **t;
- struct target_ops *runable = NULL;
- int count;
-
- count = 0;
+ struct address_space *aspace;
+ struct inferior *inf;
+ struct target_ops *t;
- for (t = target_structs; t < target_structs + target_struct_size; ++t)
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
{
- if ((*t)->to_can_run && target_can_run (*t))
+ if (t->to_thread_address_space != NULL)
{
- runable = *t;
- ++count;
+ aspace = t->to_thread_address_space (t, ptid);
+ gdb_assert (aspace);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_thread_address_space (%s) = %d\n",
+ target_pid_to_str (ptid),
+ address_space_num (aspace));
+ return aspace;
}
}
- return (count == 1 ? runable : NULL);
-}
+ /* Fall-back to the "main" address space of the inferior. */
+ inf = find_inferior_pid (ptid_get_pid (ptid));
-/* Find a single core_stratum target in the list of targets and return it.
- If for some reason there is more than one, return NULL. */
+ if (inf == NULL || inf->aspace == NULL)
+ internal_error (__FILE__, __LINE__,
+ _("Can't determine the current "
+ "address space of thread %s\n"),
+ target_pid_to_str (ptid));
-struct target_ops *
-find_core_target (void)
+ return inf->aspace;
+}
+
+
+/* Target file operations. */
+
+static struct target_ops *
+default_fileio_target (void)
{
- struct target_ops **t;
- struct target_ops *runable = NULL;
- int count;
+ /* If we're already connected to something that can perform
+ file I/O, use it. Otherwise, try using the native target. */
+ if (current_target.to_stratum >= process_stratum)
+ return current_target.beneath;
+ else
+ return find_default_run_target ("file I/O");
+}
- count = 0;
+/* Open FILENAME on the target, using FLAGS and MODE. Return a
+ target file descriptor, or -1 if an error occurs (and set
+ *TARGET_ERRNO). */
+int
+target_fileio_open (const char *filename, int flags, int mode,
+ int *target_errno)
+{
+ struct target_ops *t;
- for (t = target_structs; t < target_structs + target_struct_size;
- ++t)
+ for (t = default_fileio_target (); t != NULL; t = t->beneath)
{
- if ((*t)->to_stratum == core_stratum)
+ if (t->to_fileio_open != NULL)
{
- runable = *t;
- ++count;
+ int fd = t->to_fileio_open (filename, flags, mode, target_errno);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_fileio_open (%s,0x%x,0%o) = %d (%d)\n",
+ filename, flags, mode,
+ fd, fd != -1 ? 0 : *target_errno);
+ return fd;
+ }
+ }
+
+ *target_errno = FILEIO_ENOSYS;
+ return -1;
+}
+
+/* Write up to LEN bytes from WRITE_BUF to FD on the target.
+ Return the number of bytes written, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+int
+target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
+ ULONGEST offset, int *target_errno)
+{
+ struct target_ops *t;
+
+ for (t = default_fileio_target (); t != NULL; t = t->beneath)
+ {
+ if (t->to_fileio_pwrite != NULL)
+ {
+ int ret = t->to_fileio_pwrite (fd, write_buf, len, offset,
+ target_errno);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_fileio_pwrite (%d,...,%d,%s) "
+ "= %d (%d)\n",
+ fd, len, pulongest (offset),
+ ret, ret != -1 ? 0 : *target_errno);
+ return ret;
+ }
+ }
+
+ *target_errno = FILEIO_ENOSYS;
+ return -1;
+}
+
+/* Read up to LEN bytes FD on the target into READ_BUF.
+ Return the number of bytes read, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+int
+target_fileio_pread (int fd, gdb_byte *read_buf, int len,
+ ULONGEST offset, int *target_errno)
+{
+ struct target_ops *t;
+
+ for (t = default_fileio_target (); t != NULL; t = t->beneath)
+ {
+ if (t->to_fileio_pread != NULL)
+ {
+ int ret = t->to_fileio_pread (fd, read_buf, len, offset,
+ target_errno);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_fileio_pread (%d,...,%d,%s) "
+ "= %d (%d)\n",
+ fd, len, pulongest (offset),
+ ret, ret != -1 ? 0 : *target_errno);
+ return ret;
+ }
+ }
+
+ *target_errno = FILEIO_ENOSYS;
+ return -1;
+}
+
+/* Close FD on the target. Return 0, or -1 if an error occurs
+ (and set *TARGET_ERRNO). */
+int
+target_fileio_close (int fd, int *target_errno)
+{
+ struct target_ops *t;
+
+ for (t = default_fileio_target (); t != NULL; t = t->beneath)
+ {
+ if (t->to_fileio_close != NULL)
+ {
+ int ret = t->to_fileio_close (fd, target_errno);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_fileio_close (%d) = %d (%d)\n",
+ fd, ret, ret != -1 ? 0 : *target_errno);
+ return ret;
+ }
+ }
+
+ *target_errno = FILEIO_ENOSYS;
+ return -1;
+}
+
+/* Unlink FILENAME on the target. Return 0, or -1 if an error
+ occurs (and set *TARGET_ERRNO). */
+int
+target_fileio_unlink (const char *filename, int *target_errno)
+{
+ struct target_ops *t;
+
+ for (t = default_fileio_target (); t != NULL; t = t->beneath)
+ {
+ if (t->to_fileio_unlink != NULL)
+ {
+ int ret = t->to_fileio_unlink (filename, target_errno);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_fileio_unlink (%s) = %d (%d)\n",
+ filename, ret, ret != -1 ? 0 : *target_errno);
+ return ret;
+ }
+ }
+
+ *target_errno = FILEIO_ENOSYS;
+ return -1;
+}
+
+/* Read value of symbolic link FILENAME on the target. Return a
+ null-terminated string allocated via xmalloc, or NULL if an error
+ occurs (and set *TARGET_ERRNO). */
+char *
+target_fileio_readlink (const char *filename, int *target_errno)
+{
+ struct target_ops *t;
+
+ for (t = default_fileio_target (); t != NULL; t = t->beneath)
+ {
+ if (t->to_fileio_readlink != NULL)
+ {
+ char *ret = t->to_fileio_readlink (filename, target_errno);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_fileio_readlink (%s) = %s (%d)\n",
+ filename, ret? ret : "(nil)",
+ ret? 0 : *target_errno);
+ return ret;
+ }
+ }
+
+ *target_errno = FILEIO_ENOSYS;
+ return NULL;
+}
+
+static void
+target_fileio_close_cleanup (void *opaque)
+{
+ int fd = *(int *) opaque;
+ int target_errno;
+
+ target_fileio_close (fd, &target_errno);
+}
+
+/* Read target file FILENAME. 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_fileio_read_alloc; see the declaration of that function for more
+ information. */
+
+static LONGEST
+target_fileio_read_alloc_1 (const char *filename,
+ gdb_byte **buf_p, int padding)
+{
+ struct cleanup *close_cleanup;
+ size_t buf_alloc, buf_pos;
+ gdb_byte *buf;
+ LONGEST n;
+ int fd;
+ int target_errno;
+
+ fd = target_fileio_open (filename, FILEIO_O_RDONLY, 0700, &target_errno);
+ if (fd == -1)
+ return -1;
+
+ close_cleanup = make_cleanup (target_fileio_close_cleanup, &fd);
+
+ /* 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_fileio_pread (fd, &buf[buf_pos],
+ buf_alloc - buf_pos - padding, buf_pos,
+ &target_errno);
+ if (n < 0)
+ {
+ /* An error occurred. */
+ do_cleanups (close_cleanup);
+ xfree (buf);
+ return -1;
+ }
+ else if (n == 0)
+ {
+ /* Read all there was. */
+ do_cleanups (close_cleanup);
+ 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;
}
+}
+
+/* Read target file FILENAME. 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_fileio_read_alloc (const char *filename, gdb_byte **buf_p)
+{
+ return target_fileio_read_alloc_1 (filename, buf_p, 0);
+}
+
+/* Read target file FILENAME. 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_fileio_read_stralloc (const char *filename)
+{
+ gdb_byte *buffer;
+ char *bufstr;
+ LONGEST i, transferred;
+
+ transferred = target_fileio_read_alloc_1 (filename, &buffer, 1);
+ bufstr = (char *) buffer;
+
+ if (transferred < 0)
+ return NULL;
+
+ if (transferred == 0)
+ return xstrdup ("");
+
+ bufstr[transferred] = 0;
+
+ /* Check for embedded NUL bytes; but allow trailing NULs. */
+ for (i = strlen (bufstr); i < transferred; i++)
+ if (bufstr[i] != 0)
+ {
+ warning (_("target file %s "
+ "contained unexpected null characters"),
+ filename);
+ break;
+ }
+
+ return bufstr;
+}
+
+
+static int
+default_region_ok_for_hw_watchpoint (struct target_ops *self,
+ 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 struct gdbarch *
+default_thread_architecture (struct target_ops *ops, ptid_t ptid)
+{
+ return target_gdbarch ();
+}
+
+static int
+return_zero (void)
+{
+ return 0;
+}
+
+static int
+return_one (void)
+{
+ return 1;
+}
+
+static int
+return_minus_one (void)
+{
+ return -1;
+}
- return (count == 1 ? runable : NULL);
+static void *
+return_null (void)
+{
+ return 0;
}
/*
return t->beneath;
}
+/* See target.h. */
+
+struct target_ops *
+find_target_at (enum strata stratum)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_stratum == stratum)
+ return t;
+
+ return NULL;
+}
+
\f
/* The inferior process has died. Long live the inferior! */
ptid = inferior_ptid;
inferior_ptid = null_ptid;
+ /* Mark breakpoints uninserted in case something tries to delete a
+ breakpoint while we delete the inferior's threads (which would
+ fail, since the inferior is long gone). */
+ mark_breakpoints_out ();
+
if (!ptid_equal (ptid, null_ptid))
{
int pid = ptid_get_pid (ptid);
- delete_inferior (pid);
+ exit_inferior (pid);
}
+ /* Note this wipes step-resume breakpoints, so needs to be done
+ after exit_inferior, which ends up referencing the step-resume
+ breakpoints through clear_thread_inferior_resources. */
breakpoint_init_inferior (inf_exited);
+
registers_changed ();
reopen_exec_file ();
deprecated_detach_hook ();
}
\f
-/* 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 (struct target_waitstatus *ourstatus, int hoststatus)
-{
- if (WIFEXITED (hoststatus))
- {
- ourstatus->kind = TARGET_WAITKIND_EXITED;
- ourstatus->value.integer = WEXITSTATUS (hoststatus);
- }
- else if (!WIFSTOPPED (hoststatus))
- {
- ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
- ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
- }
- else
- {
- ourstatus->kind = TARGET_WAITKIND_STOPPED;
- ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
- }
-}
-\f
/* Convert a normal process ID to a string. Returns the string in a
static buffer. */
return normal_pid_to_str (ptid);
}
-/* Error-catcher for target_find_memory_regions */
-static int dummy_find_memory_regions (int (*ignore1) (), void *ignore2)
+/* Error-catcher for target_find_memory_regions. */
+static int
+dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2)
{
- error (_("No target."));
+ error (_("Command not implemented for this target."));
return 0;
}
-/* Error-catcher for target_make_corefile_notes */
-static char * dummy_make_corefile_notes (bfd *ignore1, int *ignore2)
+/* Error-catcher for target_make_corefile_notes. */
+static char *
+dummy_make_corefile_notes (bfd *ignore1, int *ignore2)
{
- error (_("No target."));
+ error (_("Command not implemented for this target."));
return NULL;
}
-/* Set up the handful of non-empty slots needed by the dummy target
- vector. */
+/* Error-catcher for target_get_bookmark. */
+static gdb_byte *
+dummy_get_bookmark (char *ignore1, int ignore2)
+{
+ tcomplain ();
+ return NULL;
+}
+/* Error-catcher for target_goto_bookmark. */
static void
-init_dummy_target (void)
+dummy_goto_bookmark (gdb_byte *ignore, int from_tty)
{
- dummy_target.to_shortname = "None";
+ tcomplain ();
+}
+
+/* Set up the handful of non-empty slots needed by the dummy target
+ vector. */
+
+static void
+init_dummy_target (void)
+{
+ dummy_target.to_shortname = "None";
dummy_target.to_longname = "None";
dummy_target.to_doc = "";
dummy_target.to_attach = find_default_attach;
dummy_target.to_detach =
- (void (*)(struct target_ops *, char *, int))target_ignore;
+ (void (*)(struct target_ops *, const char *, int))target_ignore;
dummy_target.to_create_inferior = find_default_create_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_supports_disable_randomization
+ = find_default_supports_disable_randomization;
dummy_target.to_pid_to_str = dummy_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_get_bookmark = dummy_get_bookmark;
+ dummy_target.to_goto_bookmark = dummy_goto_bookmark;
dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero;
dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero;
dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero;
dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero;
- dummy_target.to_has_execution = (int (*) (struct target_ops *)) return_zero;
+ dummy_target.to_has_execution
+ = (int (*) (struct target_ops *, ptid_t)) return_zero;
dummy_target.to_magic = OPS_MAGIC;
+
+ install_dummy_methods (&dummy_target);
}
\f
static void
{
debug_target.to_open (args, from_tty);
- fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty);
+ fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty);
+}
+
+void
+target_close (struct target_ops *targ)
+{
+ gdb_assert (!target_is_pushed (targ));
+
+ if (targ->to_xclose != NULL)
+ targ->to_xclose (targ);
+ else if (targ->to_close != NULL)
+ targ->to_close (targ);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_close ()\n");
+}
+
+void
+target_attach (char *args, int from_tty)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_attach != NULL)
+ {
+ t->to_attach (t, args, from_tty);
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n",
+ args, from_tty);
+ return;
+ }
+ }
+
+ internal_error (__FILE__, __LINE__,
+ _("could not find a target to attach"));
+}
+
+int
+target_thread_alive (ptid_t ptid)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_thread_alive != NULL)
+ {
+ int retval;
+
+ retval = t->to_thread_alive (t, ptid);
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
+ ptid_get_pid (ptid), retval);
+
+ return retval;
+ }
+ }
+
+ return 0;
+}
+
+void
+target_find_new_threads (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_find_new_threads != NULL)
+ {
+ t->to_find_new_threads (t);
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n");
+
+ return;
+ }
+ }
+}
+
+void
+target_stop (ptid_t ptid)
+{
+ if (!may_stop)
+ {
+ warning (_("May not interrupt or stop the target, ignoring attempt"));
+ return;
+ }
+
+ (*current_target.to_stop) (¤t_target, ptid);
+}
+
+static void
+debug_to_post_attach (struct target_ops *self, int pid)
+{
+ debug_target.to_post_attach (&debug_target, pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
+}
+
+/* Concatenate ELEM to LIST, a comma separate list, and return the
+ result. The LIST incoming argument is released. */
+
+static char *
+str_comma_list_concat_elem (char *list, const char *elem)
+{
+ if (list == NULL)
+ return xstrdup (elem);
+ else
+ return reconcat (list, list, ", ", elem, (char *) NULL);
+}
+
+/* Helper for target_options_to_string. If OPT is present in
+ TARGET_OPTIONS, append the OPT_STR (string version of OPT) in RET.
+ Returns the new resulting string. OPT is removed from
+ TARGET_OPTIONS. */
+
+static char *
+do_option (int *target_options, char *ret,
+ int opt, char *opt_str)
+{
+ if ((*target_options & opt) != 0)
+ {
+ ret = str_comma_list_concat_elem (ret, opt_str);
+ *target_options &= ~opt;
+ }
+
+ return ret;
+}
+
+char *
+target_options_to_string (int target_options)
+{
+ char *ret = NULL;
+
+#define DO_TARG_OPTION(OPT) \
+ ret = do_option (&target_options, ret, OPT, #OPT)
+
+ DO_TARG_OPTION (TARGET_WNOHANG);
+
+ if (target_options != 0)
+ ret = str_comma_list_concat_elem (ret, "unknown???");
+
+ if (ret == NULL)
+ ret = xstrdup ("");
+ return ret;
+}
+
+static void
+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))
+ {
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ int i, size = register_size (gdbarch, regno);
+ gdb_byte 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, byte_order);
+
+ fprintf_unfiltered (gdb_stdlog, " %s %s",
+ core_addr_to_string_nz (val), plongest (val));
+ }
+ }
+ fprintf_unfiltered (gdb_stdlog, "\n");
+}
+
+void
+target_fetch_registers (struct regcache *regcache, int regno)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_fetch_registers != NULL)
+ {
+ t->to_fetch_registers (t, regcache, regno);
+ if (targetdebug)
+ debug_print_register ("target_fetch_registers", regcache, regno);
+ return;
+ }
+ }
+}
+
+void
+target_store_registers (struct regcache *regcache, int regno)
+{
+ struct target_ops *t;
+
+ if (!may_write_registers)
+ error (_("Writing to registers is not allowed (regno %d)"), regno);
+
+ current_target.to_store_registers (¤t_target, regcache, regno);
+ if (targetdebug)
+ {
+ debug_print_register ("target_store_registers", regcache, regno);
+ }
+}
+
+int
+target_core_of_thread (ptid_t ptid)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_core_of_thread != NULL)
+ {
+ int retval = t->to_core_of_thread (t, ptid);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_core_of_thread (%d) = %d\n",
+ ptid_get_pid (ptid), retval);
+ return retval;
+ }
+ }
+
+ return -1;
+}
+
+int
+target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ {
+ if (t->to_verify_memory != NULL)
+ {
+ int retval = t->to_verify_memory (t, data, memaddr, size);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_verify_memory (%s, %s) = %d\n",
+ paddress (target_gdbarch (), memaddr),
+ pulongest (size),
+ retval);
+ return retval;
+ }
+ }
+
+ tcomplain ();
+}
+
+/* The documentation for this function is in its prototype declaration in
+ target.h. */
+
+int
+target_insert_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_insert_mask_watchpoint != NULL)
+ {
+ int ret;
+
+ ret = t->to_insert_mask_watchpoint (t, addr, mask, rw);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "\
+target_insert_mask_watchpoint (%s, %s, %d) = %d\n",
+ core_addr_to_string (addr),
+ core_addr_to_string (mask), rw, ret);
+
+ return ret;
+ }
+
+ return 1;
+}
+
+/* The documentation for this function is in its prototype declaration in
+ target.h. */
+
+int
+target_remove_mask_watchpoint (CORE_ADDR addr, CORE_ADDR mask, int rw)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_remove_mask_watchpoint != NULL)
+ {
+ int ret;
+
+ ret = t->to_remove_mask_watchpoint (t, addr, mask, rw);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog, "\
+target_remove_mask_watchpoint (%s, %s, %d) = %d\n",
+ core_addr_to_string (addr),
+ core_addr_to_string (mask), rw, ret);
+
+ return ret;
+ }
+
+ return 1;
+}
+
+/* The documentation for this function is in its prototype declaration
+ in target.h. */
+
+int
+target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_masked_watch_num_registers != NULL)
+ return t->to_masked_watch_num_registers (t, addr, mask);
+
+ return -1;
+}
+
+/* The documentation for this function is in its prototype declaration
+ in target.h. */
+
+int
+target_ranged_break_num_registers (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_ranged_break_num_registers != NULL)
+ return t->to_ranged_break_num_registers (t);
+
+ return -1;
+}
+
+/* See target.h. */
+
+struct btrace_target_info *
+target_enable_btrace (ptid_t ptid)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_enable_btrace != NULL)
+ return t->to_enable_btrace (ptid);
+
+ tcomplain ();
+ return NULL;
+}
+
+/* See target.h. */
+
+void
+target_disable_btrace (struct btrace_target_info *btinfo)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_disable_btrace != NULL)
+ {
+ t->to_disable_btrace (btinfo);
+ return;
+ }
+
+ tcomplain ();
+}
+
+/* See target.h. */
+
+void
+target_teardown_btrace (struct btrace_target_info *btinfo)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_teardown_btrace != NULL)
+ {
+ t->to_teardown_btrace (btinfo);
+ return;
+ }
+
+ tcomplain ();
+}
+
+/* See target.h. */
+
+enum btrace_error
+target_read_btrace (VEC (btrace_block_s) **btrace,
+ struct btrace_target_info *btinfo,
+ enum btrace_read_type type)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_read_btrace != NULL)
+ return t->to_read_btrace (btrace, btinfo, type);
+
+ tcomplain ();
+ return BTRACE_ERR_NOT_SUPPORTED;
+}
+
+/* See target.h. */
+
+void
+target_stop_recording (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_stop_recording != NULL)
+ {
+ t->to_stop_recording ();
+ return;
+ }
+
+ /* This is optional. */
+}
+
+/* See target.h. */
+
+void
+target_info_record (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_info_record != NULL)
+ {
+ t->to_info_record ();
+ return;
+ }
+
+ tcomplain ();
+}
+
+/* See target.h. */
+
+void
+target_save_record (const char *filename)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_save_record != NULL)
+ {
+ t->to_save_record (filename);
+ return;
+ }
+
+ tcomplain ();
+}
+
+/* See target.h. */
+
+int
+target_supports_delete_record (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_delete_record != NULL)
+ return 1;
+
+ return 0;
+}
+
+/* See target.h. */
+
+void
+target_delete_record (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_delete_record != NULL)
+ {
+ t->to_delete_record ();
+ return;
+ }
+
+ tcomplain ();
+}
+
+/* See target.h. */
+
+int
+target_record_is_replaying (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_record_is_replaying != NULL)
+ return t->to_record_is_replaying ();
+
+ return 0;
+}
+
+/* See target.h. */
+
+void
+target_goto_record_begin (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_goto_record_begin != NULL)
+ {
+ t->to_goto_record_begin ();
+ return;
+ }
+
+ tcomplain ();
+}
+
+/* See target.h. */
+
+void
+target_goto_record_end (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_goto_record_end != NULL)
+ {
+ t->to_goto_record_end ();
+ return;
+ }
+
+ tcomplain ();
}
+/* See target.h. */
+
void
-target_close (struct target_ops *targ, int quitting)
+target_goto_record (ULONGEST insn)
{
- if (targ->to_xclose != NULL)
- targ->to_xclose (targ, quitting);
- else if (targ->to_close != NULL)
- targ->to_close (quitting);
+ struct target_ops *t;
- if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_goto_record != NULL)
+ {
+ t->to_goto_record (insn);
+ return;
+ }
+
+ tcomplain ();
}
+/* See target.h. */
+
void
-target_attach (char *args, int from_tty)
+target_insn_history (int size, int flags)
{
struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
- {
- if (t->to_attach != NULL)
- {
- t->to_attach (t, args, from_tty);
- if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n",
- args, from_tty);
- return;
- }
- }
+ if (t->to_insn_history != NULL)
+ {
+ t->to_insn_history (size, flags);
+ return;
+ }
- internal_error (__FILE__, __LINE__,
- "could not find a target to attach");
+ tcomplain ();
}
-int
-target_thread_alive (ptid_t ptid)
+/* See target.h. */
+
+void
+target_insn_history_from (ULONGEST from, int size, int flags)
{
struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
- {
- if (t->to_thread_alive != NULL)
- {
- int retval;
+ if (t->to_insn_history_from != NULL)
+ {
+ t->to_insn_history_from (from, size, flags);
+ return;
+ }
- retval = t->to_thread_alive (t, ptid);
- if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
- PIDGET (ptid), retval);
+ tcomplain ();
+}
- return retval;
- }
- }
+/* See target.h. */
- return 0;
+void
+target_insn_history_range (ULONGEST begin, ULONGEST end, int flags)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_insn_history_range != NULL)
+ {
+ t->to_insn_history_range (begin, end, flags);
+ return;
+ }
+
+ tcomplain ();
}
+/* See target.h. */
+
void
-target_find_new_threads (void)
+target_call_history (int size, int flags)
{
struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
- {
- if (t->to_find_new_threads != NULL)
- {
- t->to_find_new_threads (t);
- if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n");
+ if (t->to_call_history != NULL)
+ {
+ t->to_call_history (size, flags);
+ return;
+ }
- return;
- }
- }
+ tcomplain ();
}
-static void
-debug_to_post_attach (int pid)
+/* See target.h. */
+
+void
+target_call_history_from (ULONGEST begin, int size, int flags)
{
- debug_target.to_post_attach (pid);
+ struct target_ops *t;
- fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_call_history_from != NULL)
+ {
+ t->to_call_history_from (begin, size, flags);
+ return;
+ }
+
+ tcomplain ();
}
-/* Return a pretty printed form of target_waitstatus.
- Space for the result is malloc'd, caller must free. */
+/* See target.h. */
-char *
-target_waitstatus_to_string (const struct target_waitstatus *ws)
-{
- const char *kind_str = "status->kind = ";
-
- switch (ws->kind)
- {
- case TARGET_WAITKIND_EXITED:
- return xstrprintf ("%sexited, status = %d",
- kind_str, ws->value.integer);
- case TARGET_WAITKIND_STOPPED:
- return xstrprintf ("%sstopped, signal = %s",
- kind_str, target_signal_to_name (ws->value.sig));
- case TARGET_WAITKIND_SIGNALLED:
- return xstrprintf ("%ssignalled, signal = %s",
- kind_str, target_signal_to_name (ws->value.sig));
- case TARGET_WAITKIND_LOADED:
- return xstrprintf ("%sloaded", kind_str);
- case TARGET_WAITKIND_FORKED:
- return xstrprintf ("%sforked", kind_str);
- case TARGET_WAITKIND_VFORKED:
- return xstrprintf ("%svforked", kind_str);
- case TARGET_WAITKIND_EXECD:
- return xstrprintf ("%sexecd", kind_str);
- case TARGET_WAITKIND_SYSCALL_ENTRY:
- return xstrprintf ("%sentered syscall", kind_str);
- case TARGET_WAITKIND_SYSCALL_RETURN:
- return xstrprintf ("%sexited syscall", kind_str);
- case TARGET_WAITKIND_SPURIOUS:
- return xstrprintf ("%sspurious", kind_str);
- case TARGET_WAITKIND_IGNORE:
- return xstrprintf ("%signore", kind_str);
- case TARGET_WAITKIND_NO_HISTORY:
- return xstrprintf ("%sno-history", kind_str);
- default:
- return xstrprintf ("%sunknown???", kind_str);
- }
+void
+target_call_history_range (ULONGEST begin, ULONGEST end, int flags)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_call_history_range != NULL)
+ {
+ t->to_call_history_range (begin, end, flags);
+ return;
+ }
+
+ tcomplain ();
}
static void
-debug_print_register (const char * func,
- struct regcache *regcache, int regno)
+debug_to_prepare_to_store (struct target_ops *self, struct regcache *regcache)
{
- 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))
- {
- enum bfd_endian byte_order = gdbarch_byte_order (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, byte_order);
- fprintf_unfiltered (gdb_stdlog, " %s %s",
- core_addr_to_string_nz (val), plongest (val));
- }
- }
- fprintf_unfiltered (gdb_stdlog, "\n");
+ debug_target.to_prepare_to_store (&debug_target, regcache);
+
+ fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n");
}
-void
-target_fetch_registers (struct regcache *regcache, int regno)
+/* See target.h. */
+
+const struct frame_unwind *
+target_get_unwinder (void)
{
struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
- {
- if (t->to_fetch_registers != NULL)
- {
- t->to_fetch_registers (t, regcache, regno);
- if (targetdebug)
- debug_print_register ("target_fetch_registers", regcache, regno);
- return;
- }
- }
+ if (t->to_get_unwinder != NULL)
+ return t->to_get_unwinder;
+
+ return NULL;
}
-void
-target_store_registers (struct regcache *regcache, int regno)
-{
+/* See target.h. */
+const struct frame_unwind *
+target_get_tailcall_unwinder (void)
+{
struct target_ops *t;
+
for (t = current_target.beneath; t != NULL; t = t->beneath)
- {
- if (t->to_store_registers != NULL)
- {
- t->to_store_registers (t, regcache, regno);
- if (targetdebug)
- {
- debug_print_register ("target_store_registers", regcache, regno);
- }
- return;
- }
- }
+ if (t->to_get_tailcall_unwinder != NULL)
+ return t->to_get_tailcall_unwinder;
- noprocess ();
+ return NULL;
}
-static void
-debug_to_prepare_to_store (struct regcache *regcache)
+/* See target.h. */
+
+CORE_ADDR
+forward_target_decr_pc_after_break (struct target_ops *ops,
+ struct gdbarch *gdbarch)
{
- debug_target.to_prepare_to_store (regcache);
+ for (; ops != NULL; ops = ops->beneath)
+ if (ops->to_decr_pc_after_break != NULL)
+ return ops->to_decr_pc_after_break (ops, gdbarch);
- fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n");
+ return gdbarch_decr_pc_after_break (gdbarch);
+}
+
+/* See target.h. */
+
+CORE_ADDR
+target_decr_pc_after_break (struct gdbarch *gdbarch)
+{
+ return forward_target_decr_pc_after_break (current_target.beneath, gdbarch);
}
static int
fprintf_unfiltered (gdb_stdlog,
"target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
- paddress (target_gdbarch, memaddr), len,
+ paddress (target_gdbarch (), memaddr), len,
write ? "write" : "read", retval);
if (retval > 0)
}
static int
-debug_to_insert_breakpoint (struct gdbarch *gdbarch,
+debug_to_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt);
+ retval = debug_target.to_insert_breakpoint (&debug_target, gdbarch, bp_tgt);
fprintf_unfiltered (gdb_stdlog,
- "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
- (unsigned long) bp_tgt->placed_address,
+ "target_insert_breakpoint (%s, xxx) = %ld\n",
+ core_addr_to_string (bp_tgt->placed_address),
(unsigned long) retval);
return retval;
}
static int
-debug_to_remove_breakpoint (struct gdbarch *gdbarch,
+debug_to_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt);
+ retval = debug_target.to_remove_breakpoint (&debug_target, gdbarch, bp_tgt);
fprintf_unfiltered (gdb_stdlog,
- "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
- (unsigned long) bp_tgt->placed_address,
+ "target_remove_breakpoint (%s, xxx) = %ld\n",
+ core_addr_to_string (bp_tgt->placed_address),
(unsigned long) retval);
return retval;
}
static int
-debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty)
+debug_to_can_use_hw_breakpoint (struct target_ops *self,
+ int type, int cnt, int from_tty)
{
int retval;
- retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty);
+ retval = debug_target.to_can_use_hw_breakpoint (&debug_target,
+ type, cnt, from_tty);
fprintf_unfiltered (gdb_stdlog,
"target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
}
static int
-debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
+debug_to_region_ok_for_hw_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len)
{
CORE_ADDR retval;
- retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len);
+ retval = debug_target.to_region_ok_for_hw_watchpoint (&debug_target,
+ 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);
+ "target_region_ok_for_hw_watchpoint (%s, %ld) = %s\n",
+ core_addr_to_string (addr), (unsigned long) len,
+ core_addr_to_string (retval));
+ return retval;
+}
+
+static int
+debug_to_can_accel_watchpoint_condition (struct target_ops *self,
+ CORE_ADDR addr, int len, int rw,
+ struct expression *cond)
+{
+ int retval;
+
+ retval = debug_target.to_can_accel_watchpoint_condition (&debug_target,
+ addr, len,
+ rw, cond);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_can_accel_watchpoint_condition "
+ "(%s, %d, %d, %s) = %ld\n",
+ core_addr_to_string (addr), len, rw,
+ host_address_to_string (cond), (unsigned long) retval);
return retval;
}
static int
-debug_to_stopped_by_watchpoint (void)
+debug_to_stopped_by_watchpoint (struct target_ops *ops)
{
int retval;
- retval = debug_target.to_stopped_by_watchpoint ();
+ retval = debug_target.to_stopped_by_watchpoint (&debug_target);
fprintf_unfiltered (gdb_stdlog,
"target_stopped_by_watchpoint () = %ld\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,
+ "target_stopped_data_address ([%s]) = %ld\n",
+ core_addr_to_string (*addr),
(unsigned long)retval);
return retval;
}
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);
+ "target_watchpoint_addr_within_range (%s, %s, %d) = %d\n",
+ core_addr_to_string (addr), core_addr_to_string (start),
+ length, retval);
return retval;
}
static int
-debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch,
+debug_to_insert_hw_breakpoint (struct target_ops *self,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt);
+ retval = debug_target.to_insert_hw_breakpoint (&debug_target,
+ gdbarch, bp_tgt);
fprintf_unfiltered (gdb_stdlog,
- "target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n",
- (unsigned long) bp_tgt->placed_address,
+ "target_insert_hw_breakpoint (%s, xxx) = %ld\n",
+ core_addr_to_string (bp_tgt->placed_address),
(unsigned long) retval);
return retval;
}
static int
-debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch,
+debug_to_remove_hw_breakpoint (struct target_ops *self,
+ struct gdbarch *gdbarch,
struct bp_target_info *bp_tgt)
{
int retval;
- retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt);
+ retval = debug_target.to_remove_hw_breakpoint (&debug_target,
+ gdbarch, bp_tgt);
fprintf_unfiltered (gdb_stdlog,
- "target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n",
- (unsigned long) bp_tgt->placed_address,
+ "target_remove_hw_breakpoint (%s, xxx) = %ld\n",
+ core_addr_to_string (bp_tgt->placed_address),
(unsigned long) retval);
return retval;
}
static int
-debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type)
+debug_to_insert_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len, int type,
+ struct expression *cond)
{
int retval;
- retval = debug_target.to_insert_watchpoint (addr, len, type);
+ retval = debug_target.to_insert_watchpoint (&debug_target,
+ addr, len, type, cond);
fprintf_unfiltered (gdb_stdlog,
- "target_insert_watchpoint (0x%lx, %d, %d) = %ld\n",
- (unsigned long) addr, len, type, (unsigned long) retval);
+ "target_insert_watchpoint (%s, %d, %d, %s) = %ld\n",
+ core_addr_to_string (addr), len, type,
+ host_address_to_string (cond), (unsigned long) retval);
return retval;
}
static int
-debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type)
+debug_to_remove_watchpoint (struct target_ops *self,
+ CORE_ADDR addr, int len, int type,
+ struct expression *cond)
{
int retval;
- retval = debug_target.to_remove_watchpoint (addr, len, type);
+ retval = debug_target.to_remove_watchpoint (&debug_target,
+ addr, len, type, cond);
fprintf_unfiltered (gdb_stdlog,
- "target_remove_watchpoint (0x%lx, %d, %d) = %ld\n",
- (unsigned long) addr, len, type, (unsigned long) retval);
+ "target_remove_watchpoint (%s, %d, %d, %s) = %ld\n",
+ core_addr_to_string (addr), len, type,
+ host_address_to_string (cond), (unsigned long) retval);
return retval;
}
static void
-debug_to_terminal_init (void)
+debug_to_terminal_init (struct target_ops *self)
{
- debug_target.to_terminal_init ();
+ debug_target.to_terminal_init (&debug_target);
fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
}
static void
-debug_to_terminal_inferior (void)
+debug_to_terminal_inferior (struct target_ops *self)
{
- debug_target.to_terminal_inferior ();
+ debug_target.to_terminal_inferior (&debug_target);
fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
}
static void
-debug_to_terminal_ours_for_output (void)
+debug_to_terminal_ours_for_output (struct target_ops *self)
{
- debug_target.to_terminal_ours_for_output ();
+ debug_target.to_terminal_ours_for_output (&debug_target);
fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
}
static void
-debug_to_terminal_ours (void)
+debug_to_terminal_ours (struct target_ops *self)
{
- debug_target.to_terminal_ours ();
+ debug_target.to_terminal_ours (&debug_target);
fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
}
static void
-debug_to_terminal_save_ours (void)
+debug_to_terminal_save_ours (struct target_ops *self)
{
- debug_target.to_terminal_save_ours ();
+ debug_target.to_terminal_save_ours (&debug_target);
fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n");
}
static void
-debug_to_terminal_info (char *arg, int from_tty)
+debug_to_terminal_info (struct target_ops *self,
+ const char *arg, int from_tty)
{
- debug_target.to_terminal_info (arg, from_tty);
+ debug_target.to_terminal_info (&debug_target, arg, from_tty);
fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
from_tty);
}
static void
-debug_to_load (char *args, int from_tty)
+debug_to_load (struct target_ops *self, char *args, int from_tty)
{
- debug_target.to_load (args, from_tty);
+ debug_target.to_load (&debug_target, args, from_tty);
fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
}
-static int
-debug_to_lookup_symbol (char *name, CORE_ADDR *addrp)
-{
- int retval;
-
- retval = debug_target.to_lookup_symbol (name, addrp);
-
- fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
-
- return retval;
-}
-
static void
-debug_to_post_startup_inferior (ptid_t ptid)
+debug_to_post_startup_inferior (struct target_ops *self, ptid_t ptid)
{
- debug_target.to_post_startup_inferior (ptid);
+ debug_target.to_post_startup_inferior (&debug_target, ptid);
fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
- PIDGET (ptid));
+ ptid_get_pid (ptid));
}
-static void
-debug_to_acknowledge_created_inferior (int pid)
+static int
+debug_to_insert_fork_catchpoint (struct target_ops *self, int pid)
{
- debug_target.to_acknowledge_created_inferior (pid);
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
- pid);
-}
+ retval = debug_target.to_insert_fork_catchpoint (&debug_target, pid);
-static void
-debug_to_insert_fork_catchpoint (int pid)
-{
- debug_target.to_insert_fork_catchpoint (pid);
+ fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n",
+ pid, retval);
- fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n",
- pid);
+ return retval;
}
static int
-debug_to_remove_fork_catchpoint (int pid)
+debug_to_remove_fork_catchpoint (struct target_ops *self, int pid)
{
int retval;
- retval = debug_target.to_remove_fork_catchpoint (pid);
+ retval = debug_target.to_remove_fork_catchpoint (&debug_target, pid);
fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
pid, retval);
return retval;
}
-static void
-debug_to_insert_vfork_catchpoint (int pid)
+static int
+debug_to_insert_vfork_catchpoint (struct target_ops *self, int pid)
{
- debug_target.to_insert_vfork_catchpoint (pid);
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n",
- pid);
+ retval = debug_target.to_insert_vfork_catchpoint (&debug_target, pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
}
static int
-debug_to_remove_vfork_catchpoint (int pid)
+debug_to_remove_vfork_catchpoint (struct target_ops *self, int pid)
{
int retval;
- retval = debug_target.to_remove_vfork_catchpoint (pid);
+ retval = debug_target.to_remove_vfork_catchpoint (&debug_target, pid);
fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
pid, retval);
return retval;
}
-static void
-debug_to_insert_exec_catchpoint (int pid)
+static int
+debug_to_insert_exec_catchpoint (struct target_ops *self, int pid)
{
- debug_target.to_insert_exec_catchpoint (pid);
+ int retval;
+
+ retval = debug_target.to_insert_exec_catchpoint (&debug_target, pid);
- fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n",
- pid);
+ fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
}
static int
-debug_to_remove_exec_catchpoint (int pid)
+debug_to_remove_exec_catchpoint (struct target_ops *self, int pid)
{
int retval;
- retval = debug_target.to_remove_exec_catchpoint (pid);
+ retval = debug_target.to_remove_exec_catchpoint (&debug_target, pid);
fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n",
pid, retval);
}
static int
-debug_to_has_exited (int pid, int wait_status, int *exit_status)
+debug_to_has_exited (struct target_ops *self,
+ int pid, int wait_status, int *exit_status)
{
int has_exited;
- has_exited = debug_target.to_has_exited (pid, wait_status, exit_status);
+ has_exited = debug_target.to_has_exited (&debug_target,
+ pid, wait_status, exit_status);
fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n",
pid, wait_status, *exit_status, has_exited);
}
static int
-debug_to_can_run (void)
+debug_to_can_run (struct target_ops *self)
{
int retval;
- retval = debug_target.to_can_run ();
+ retval = debug_target.to_can_run (&debug_target);
fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval);
return retval;
}
-static void
-debug_to_notice_signals (ptid_t ptid)
-{
- debug_target.to_notice_signals (ptid);
-
- fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n",
- PIDGET (ptid));
-}
-
static struct gdbarch *
debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid)
{
retval = debug_target.to_thread_architecture (ops, ptid);
- fprintf_unfiltered (gdb_stdlog, "target_thread_architecture (%s) = %p [%s]\n",
- target_pid_to_str (ptid), retval,
+ fprintf_unfiltered (gdb_stdlog,
+ "target_thread_architecture (%s) = %s [%s]\n",
+ target_pid_to_str (ptid),
+ host_address_to_string (retval),
gdbarch_bfd_arch_info (retval)->printable_name);
return retval;
}
static void
-debug_to_stop (ptid_t ptid)
+debug_to_stop (struct target_ops *self, ptid_t ptid)
{
- debug_target.to_stop (ptid);
+ debug_target.to_stop (&debug_target, ptid);
fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n",
target_pid_to_str (ptid));
}
static void
-debug_to_rcmd (char *command,
+debug_to_rcmd (struct target_ops *self, char *command,
struct ui_file *outbuf)
{
- debug_target.to_rcmd (command, outbuf);
+ debug_target.to_rcmd (&debug_target, command, outbuf);
fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command);
}
static char *
-debug_to_pid_to_exec_file (int pid)
+debug_to_pid_to_exec_file (struct target_ops *self, int pid)
{
char *exec_file;
- exec_file = debug_target.to_pid_to_exec_file (pid);
+ exec_file = debug_target.to_pid_to_exec_file (&debug_target, pid);
fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n",
pid, exec_file);
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_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_can_accel_watchpoint_condition
+ = debug_to_can_accel_watchpoint_condition;
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_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_load = debug_to_load;
- current_target.to_lookup_symbol = debug_to_lookup_symbol;
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_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_exec_catchpoint = debug_to_remove_exec_catchpoint;
current_target.to_has_exited = debug_to_has_exited;
current_target.to_can_run = debug_to_can_run;
- current_target.to_notice_signals = debug_to_notice_signals;
current_target.to_stop = debug_to_stop;
current_target.to_rcmd = debug_to_rcmd;
current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file;
\f
static char targ_desc[] =
-"Names of targets and files being debugged.\n\
-Shows the entire stack of targets currently in use (including the exec-file,\n\
+"Names of targets and files being debugged.\nShows the entire \
+stack of targets currently in use (including the exec-file,\n\
core-file, and process, if any), as well as the symbol file name.";
static void
int from_tty)
{
if ((current_target.to_rcmd
- == (void (*) (char *, struct ui_file *)) tcomplain)
+ == (void (*) (struct target_ops *, char *, struct ui_file *)) tcomplain)
|| (current_target.to_rcmd == debug_to_rcmd
&& (debug_target.to_rcmd
- == (void (*) (char *, struct ui_file *)) tcomplain)))
+ == (void (*) (struct target_ops *,
+ char *, struct ui_file *)) tcomplain)))
error (_("\"monitor\" command not supported by this target."));
target_rcmd (cmd, gdb_stdtarg);
}
int target_async_permitted = 0;
/* The set command writes to this variable. If the inferior is
- executing, linux_nat_async_permitted is *not* updated. */
+ executing, target_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)
+set_target_async_command (char *args, int from_tty,
+ struct cmd_list_element *c)
{
if (have_live_inferiors ())
{
}
static void
-show_maintenance_target_async_permitted (struct ui_file *file, int from_tty,
- struct cmd_list_element *c,
- const char *value)
+show_target_async_command (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);
+ fprintf_filtered (file,
+ _("Controlling the inferior in "
+ "asynchronous mode is %s.\n"), value);
}
+/* Temporary copies of permission settings. */
+
+static int may_write_registers_1 = 1;
+static int may_write_memory_1 = 1;
+static int may_insert_breakpoints_1 = 1;
+static int may_insert_tracepoints_1 = 1;
+static int may_insert_fast_tracepoints_1 = 1;
+static int may_stop_1 = 1;
+
+/* Make the user-set values match the real values again. */
+
+void
+update_target_permissions (void)
+{
+ may_write_registers_1 = may_write_registers;
+ may_write_memory_1 = may_write_memory;
+ may_insert_breakpoints_1 = may_insert_breakpoints;
+ may_insert_tracepoints_1 = may_insert_tracepoints;
+ may_insert_fast_tracepoints_1 = may_insert_fast_tracepoints;
+ may_stop_1 = may_stop;
+}
+
+/* The one function handles (most of) the permission flags in the same
+ way. */
+
+static void
+set_target_permissions (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ if (target_has_execution)
+ {
+ update_target_permissions ();
+ error (_("Cannot change this setting while the inferior is running."));
+ }
+
+ /* Make the real values match the user-changed values. */
+ may_write_registers = may_write_registers_1;
+ may_insert_breakpoints = may_insert_breakpoints_1;
+ may_insert_tracepoints = may_insert_tracepoints_1;
+ may_insert_fast_tracepoints = may_insert_fast_tracepoints_1;
+ may_stop = may_stop_1;
+ update_observer_mode ();
+}
+
+/* Set memory write permission independently of observer mode. */
+
+static void
+set_write_memory_permission (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ /* Make the real values match the user-changed values. */
+ may_write_memory = may_write_memory_1;
+ update_observer_mode ();
+}
+
+
void
initialize_targets (void)
{
add_info ("target", target_info, targ_desc);
add_info ("files", target_info, targ_desc);
- add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\
+ add_setshow_zuinteger_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);
+ NULL,
+ show_targetdebug,
+ &setdebuglist, &showdebuglist);
add_setshow_boolean_cmd ("trust-readonly-sections", class_support,
&trust_readonly, _("\
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,
+ set_target_async_command,
+ show_target_async_command,
&setlist,
&showlist);
- add_setshow_boolean_cmd ("stack-cache", class_support,
- &stack_cache_enabled_p_1, _("\
-Set cache use for stack access."), _("\
-Show cache use for stack access."), _("\
-When on, use the data cache for all stack access, regardless of any\n\
-configured memory regions. This improves remote performance significantly.\n\
-By default, caching for stack access is on."),
- set_stack_cache_enabled_p,
- show_stack_cache_enabled_p,
+ add_setshow_boolean_cmd ("may-write-registers", class_support,
+ &may_write_registers_1, _("\
+Set permission to write into registers."), _("\
+Show permission to write into registers."), _("\
+When this permission is on, GDB may write into the target's registers.\n\
+Otherwise, any sort of write attempt will result in an error."),
+ set_target_permissions, NULL,
+ &setlist, &showlist);
+
+ add_setshow_boolean_cmd ("may-write-memory", class_support,
+ &may_write_memory_1, _("\
+Set permission to write into target memory."), _("\
+Show permission to write into target memory."), _("\
+When this permission is on, GDB may write into the target's memory.\n\
+Otherwise, any sort of write attempt will result in an error."),
+ set_write_memory_permission, NULL,
+ &setlist, &showlist);
+
+ add_setshow_boolean_cmd ("may-insert-breakpoints", class_support,
+ &may_insert_breakpoints_1, _("\
+Set permission to insert breakpoints in the target."), _("\
+Show permission to insert breakpoints in the target."), _("\
+When this permission is on, GDB may insert breakpoints in the program.\n\
+Otherwise, any sort of insertion attempt will result in an error."),
+ set_target_permissions, NULL,
+ &setlist, &showlist);
+
+ add_setshow_boolean_cmd ("may-insert-tracepoints", class_support,
+ &may_insert_tracepoints_1, _("\
+Set permission to insert tracepoints in the target."), _("\
+Show permission to insert tracepoints in the target."), _("\
+When this permission is on, GDB may insert tracepoints in the program.\n\
+Otherwise, any sort of insertion attempt will result in an error."),
+ set_target_permissions, NULL,
+ &setlist, &showlist);
+
+ add_setshow_boolean_cmd ("may-insert-fast-tracepoints", class_support,
+ &may_insert_fast_tracepoints_1, _("\
+Set permission to insert fast tracepoints in the target."), _("\
+Show permission to insert fast tracepoints in the target."), _("\
+When this permission is on, GDB may insert fast tracepoints.\n\
+Otherwise, any sort of insertion attempt will result in an error."),
+ set_target_permissions, NULL,
&setlist, &showlist);
- target_dcache = dcache_init ();
+ add_setshow_boolean_cmd ("may-interrupt", class_support,
+ &may_stop_1, _("\
+Set permission to interrupt or signal the target."), _("\
+Show permission to interrupt or signal the target."), _("\
+When this permission is on, GDB may interrupt/stop the target's execution.\n\
+Otherwise, any attempt to interrupt or stop will be ignored."),
+ set_target_permissions, NULL,
+ &setlist, &showlist);
}
projects / deliverable / binutils-gdb.git / blobdiff