/* 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, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2013 Free Software Foundation, Inc.
Contributed by Cygnus Support.
#include "bfd.h"
#include "symfile.h"
#include "objfiles.h"
-#include "gdb_wait.h"
#include "dcache.h"
#include <signal.h>
#include "regcache.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 default_terminal_info (char *, int);
+static void default_terminal_info (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 void tcomplain (void) ATTR_NORETURN;
+static void tcomplain (void) ATTRIBUTE_NORETURN;
static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
static int debug_to_remove_hw_breakpoint (struct gdbarch *,
struct bp_target_info *);
-static int debug_to_insert_watchpoint (CORE_ADDR, int, int);
+static int debug_to_insert_watchpoint (CORE_ADDR, int, int,
+ struct expression *);
-static int debug_to_remove_watchpoint (CORE_ADDR, int, int);
+static int debug_to_remove_watchpoint (CORE_ADDR, int, int,
+ struct expression *);
static int debug_to_stopped_by_watchpoint (void);
static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int);
+static int debug_to_can_accel_watchpoint_condition (CORE_ADDR, int, int,
+ struct expression *);
+
static void debug_to_terminal_init (void);
static void debug_to_terminal_inferior (void);
static void debug_to_terminal_ours (void);
-static void debug_to_terminal_info (char *, int);
-
static void debug_to_load (char *, int);
-static int debug_to_lookup_symbol (char *, CORE_ADDR *);
-
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;
-
/* 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;
+/* 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. */
+
+int may_write_registers = 1;
+
+int may_write_memory = 1;
+
+int may_insert_breakpoints = 1;
+
+int may_insert_tracepoints = 1;
+
+int may_insert_fast_tracepoints = 1;
+
+int may_stop = 1;
+
/* Non-zero if we want to see trace of target level stuff. */
-static int targetdebug = 0;
+static unsigned int targetdebug = 0;
static void
show_targetdebug (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
}
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;
+}
+
+/* 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 */
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. Use target_can_async_p, not target_is_async_p, since at
+ 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)
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
-default_terminal_info (char *args, int from_tty)
+default_terminal_info (const char *args, int from_tty)
{
printf_unfiltered (_("No saved terminal information.\n"));
}
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
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);
+ /* Do not inherit to_insert_mask_watchpoint. */
+ /* Do not inherit to_remove_mask_watchpoint. */
INHERIT (to_stopped_data_address, t);
INHERIT (to_have_steppable_watchpoint, t);
INHERIT (to_have_continuable_watchpoint, t);
INHERIT (to_stopped_by_watchpoint, t);
INHERIT (to_watchpoint_addr_within_range, t);
INHERIT (to_region_ok_for_hw_watchpoint, t);
+ INHERIT (to_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);
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_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 (*) (void))
target_ignore);
de_fault (to_post_attach,
(void (*) (int))
(void (*) (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 *))
(int (*) (struct gdbarch *, struct bp_target_info *))
return_minus_one);
de_fault (to_insert_watchpoint,
- (int (*) (CORE_ADDR, int, int))
+ (int (*) (CORE_ADDR, int, int, struct expression *))
return_minus_one);
de_fault (to_remove_watchpoint,
- (int (*) (CORE_ADDR, int, int))
+ (int (*) (CORE_ADDR, int, int, struct expression *))
return_minus_one);
de_fault (to_stopped_by_watchpoint,
(int (*) (void))
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 (*) (CORE_ADDR, int, int, struct expression *))
+ return_zero);
de_fault (to_terminal_init,
(void (*) (void))
target_ignore);
de_fault (to_load,
(void (*) (char *, int))
tcomplain);
- de_fault (to_lookup_symbol,
- (int (*) (char *, CORE_ADDR *))
- nosymbol);
de_fault (to_post_startup_inferior,
(void (*) (ptid_t))
target_ignore);
- de_fault (to_acknowledge_created_inferior,
- (void (*) (int))
- target_ignore);
de_fault (to_insert_fork_catchpoint,
- (void (*) (int))
- tcomplain);
+ (int (*) (int))
+ return_one);
de_fault (to_remove_fork_catchpoint,
(int (*) (int))
- tcomplain);
+ return_one);
de_fault (to_insert_vfork_catchpoint,
- (void (*) (int))
- tcomplain);
+ (int (*) (int))
+ return_one);
de_fault (to_remove_vfork_catchpoint,
(int (*) (int))
- tcomplain);
+ return_one);
de_fault (to_insert_exec_catchpoint,
- (void (*) (int))
- tcomplain);
+ (int (*) (int))
+ return_one);
de_fault (to_remove_exec_catchpoint,
(int (*) (int))
- tcomplain);
+ return_one);
de_fault (to_set_syscall_catchpoint,
(int (*) (int, int, int, int, int *))
- tcomplain);
+ return_one);
de_fault (to_has_exited,
(int (*) (int, int, int *))
return_zero);
de_fault (to_can_run,
return_zero);
- de_fault (to_notice_signals,
- (void (*) (ptid_t))
- target_ignore);
de_fault (to_extra_thread_info,
(char *(*) (struct thread_info *))
return_zero);
+ de_fault (to_thread_name,
+ (char *(*) (struct thread_info *))
+ return_zero);
de_fault (to_stop,
(void (*) (ptid_t))
target_ignore);
de_fault (to_async,
(void (*) (void (*) (enum inferior_event_type, void*), void*))
tcomplain);
- de_fault (to_async_mask,
- (int (*) (int))
- return_one);
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 breakpoint *))
+ (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_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, ULONGEST, ULONGEST, int *))
+ (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 *))
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_zero);
+ 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)
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;
}
+/* Read memory from the live target, even if currently inspecting a
+ traceframe. The return is the same as that of target_read. */
+
+static LONGEST
+target_read_live_memory (enum target_object object,
+ ULONGEST memaddr, gdb_byte *myaddr, LONGEST len)
+{
+ int ret;
+ struct cleanup *cleanup;
+
+ /* 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);
+
+ ret = target_read (current_target.beneath, object, NULL,
+ myaddr, memaddr, 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 LONGEST
+memory_xfer_live_readonly_partial (struct target_ops *ops,
+ enum target_object object,
+ gdb_byte *readbuf, ULONGEST memaddr,
+ LONGEST 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 target_section *p;
+ ULONGEST memend = memaddr + len;
+
+ table = target_get_section_table (ops);
+
+ for (p = table->sections; p < table->sections_end; p++)
+ {
+ if (memaddr >= p->addr)
+ {
+ if (memend <= p->endaddr)
+ {
+ /* Entire transfer is within this section. */
+ return target_read_live_memory (object, memaddr,
+ readbuf, 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);
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
/* Perform a partial memory transfer.
For docs see target.h, to_xfer_partial. */
static LONGEST
-memory_xfer_partial (struct target_ops *ops, enum target_object object,
- void *readbuf, const void *writebuf, ULONGEST memaddr,
- LONGEST len)
+memory_xfer_partial_1 (struct target_ops *ops, enum target_object object,
+ void *readbuf, const void *writebuf, ULONGEST memaddr,
+ LONGEST len)
{
LONGEST res;
int reg_len;
struct mem_region *region;
struct inferior *inf;
- /* Zero length requests are ok and require no work. */
- if (len == 0)
- return 0;
-
/* 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,
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);
}
}
+ /* 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);
+ if (res > 0)
+ return res;
+
+ /* No use trying further, we know some memory starting
+ at MEMADDR isn't available. */
+ return -1;
+ }
+
+ /* 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. */
if (res <= 0)
return -1;
else
- {
- if (readbuf && !show_memory_breakpoints)
- breakpoint_restore_shadows (readbuf, memaddr, reg_len);
- return res;
- }
+ return res;
}
/* If none of those methods found the memory we wanted, fall back
}
while (ops != NULL);
- if (readbuf && !show_memory_breakpoints)
- breakpoint_restore_shadows (readbuf, memaddr, reg_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. */
return res;
}
+/* Perform a partial memory transfer. For docs see target.h,
+ to_xfer_partial. */
+
+static LONGEST
+memory_xfer_partial (struct target_ops *ops, enum target_object object,
+ void *readbuf, const void *writebuf, ULONGEST memaddr,
+ LONGEST len)
+{
+ int res;
+
+ /* Zero length requests are ok and require no work. */
+ if (len == 0)
+ return 0;
+
+ /* 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);
+
+ if (res > 0 && !show_memory_breakpoints)
+ breakpoint_xfer_memory (readbuf, NULL, NULL, memaddr, res);
+ }
+ else
+ {
+ void *buf;
+ struct cleanup *old_chain;
+
+ 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);
+
+ 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);
}
gdb_assert (ops->to_xfer_partial != NULL);
+ if (writebuf && !may_write_memory)
+ error (_("Writing to memory is not allowed (addr %s, len %s)"),
+ core_addr_to_string_nz (offset), plongest (len));
+
/* If this is a memory transfer, let the memory-specific code
have a look at it instead. Memory transfers are more
complicated. */
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) = %s",
ops->to_shortname,
(int) object,
(annex ? annex : "(null)"),
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
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
Callers that can deal with partial writes should call target_write. */
int
-target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len)
+target_write_memory (CORE_ADDR memaddr, const 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
return EIO;
}
+/* Write LEN bytes from MYADDR to target raw memory at address
+ MEMADDR. Returns either 0 for success or an errno value 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)
+{
+ /* 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. */
+ if (target_write (current_target.beneath, TARGET_OBJECT_RAW_MEMORY, NULL,
+ myaddr, memaddr, len) == len)
+ return 0;
+ else
+ return EIO;
+}
+
/* Fetch the target's memory map. */
VEC(mem_region_s) *
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);
}
"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);
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;
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)
+/* Assuming that the entire [begin, end) range of memory cannot be
+ read, try to read whatever subrange is possible to read.
+
+ 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.
+
+ 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. */
+
+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;
+
+ /* If we previously failed to read 1 byte, nothing can be done here. */
+ if (end - begin <= 1)
+ {
+ xfree (buf);
+ return;
+ }
+
+ /* 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) == 1)
+ {
+ forward = 1;
+ ++current_begin;
+ }
+ else if (target_read_partial (ops, TARGET_OBJECT_MEMORY, NULL,
+ buf + (end-begin) - 1, end - 1, 1) == 1)
+ {
+ forward = 0;
+ --current_end;
+ }
+ else
+ {
+ xfree (buf);
+ return;
+ }
+
+ /* 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)
{
- 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)
+ 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
{
- /* 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);
+ 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)
- 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;
+ /* 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;
}
-
- return xfered;
+ 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;
}
- xfered += xfer;
- QUIT;
}
- return len;
+ return result;
}
+
/* An alternative to target_write with progress callbacks. */
LONGEST
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. */
}
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);
}
+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) (gdbarch, bp_tgt);
+}
+
+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) (gdbarch, bp_tgt);
+}
+
static void
target_info (char *args, int from_tty)
{
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);
}
{
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. */
;
}
}
- internal_error (__FILE__, __LINE__, "could not find a target to detach");
+ internal_error (__FILE__, __LINE__, _("could not find a target to detach"));
}
void
if (targetdebug)
{
char *status_string;
+ char *options_string;
status_string = target_waitstatus_to_string (status);
+ options_string = target_options_to_string (options);
fprintf_unfiltered (gdb_stdlog,
- "target_wait (%d, status) = %d, %s\n",
- PIDGET (ptid), PIDGET (retval),
- status_string);
+ "target_wait (%d, status, options={%s})"
+ " = %d, %s\n",
+ PIDGET (ptid), options_string,
+ PIDGET (retval), status_string);
xfree (status_string);
+ xfree (options_string);
}
return retval;
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) (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;
fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n",
PIDGET (ptid),
step ? "step" : "continue",
- target_signal_to_name (signal));
+ gdb_signal_to_name (signal));
registers_changed_ptid (ptid);
set_executing (ptid, 1);
noprocess ();
}
+
+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_pass_signals != NULL)
+ {
+ if (targetdebug)
+ {
+ 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) (numsigs, pass_signals);
+ return;
+ }
+ }
+}
+
+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) (numsigs, program_signals);
+ return;
+ }
+ }
+}
+
/* Look through the list of possible targets for a target that can
follow forks. */
if (t->to_follow_fork != NULL)
{
int retval = t->to_follow_fork (t, follow_child);
+
if (targetdebug)
fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n",
follow_child, retval);
/* 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;
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
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. */
+
+int
+target_info_proc (char *args, enum info_proc_what what)
+{
+ struct target_ops *t;
+
+ /* 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 (NULL);
+
+ for (; t != NULL; t = t->beneath)
+ {
+ if (t->to_info_proc != NULL)
+ {
+ t->to_info_proc (t, args, what);
+
+ if (targetdebug)
+ fprintf_unfiltered (gdb_stdlog,
+ "target_info_proc (\"%s\", %d)\n", args, what);
+
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+find_default_supports_disable_randomization (void)
+{
+ struct target_ops *t;
+
+ t = find_default_run_target (NULL);
+ if (t && t->to_supports_disable_randomization)
+ return (t->to_supports_disable_randomization) ();
+ return 0;
+}
+
+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;
+}
char *
target_get_osdata (const char *type)
{
- char *document;
struct target_ops *t;
/* If we're already connected to something that can get us OS
inf = find_inferior_pid (ptid_get_pid (ptid));
if (inf == NULL || inf->aspace == NULL)
- internal_error (__FILE__, __LINE__, "\
-Can't determine the current address space of thread %s\n",
+ internal_error (__FILE__, __LINE__,
+ _("Can't determine the current "
+ "address space of thread %s\n"),
target_pid_to_str (ptid));
return inf->aspace;
}
-static int
-default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
-{
- return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT);
-}
-static int
-default_watchpoint_addr_within_range (struct target_ops *target,
- CORE_ADDR addr,
- CORE_ADDR start, int length)
-{
- return addr >= start && addr < start + length;
-}
+/* Target file operations. */
-static struct gdbarch *
-default_thread_architecture (struct target_ops *ops, ptid_t ptid)
+static struct target_ops *
+default_fileio_target (void)
{
- return target_gdbarch;
+ /* 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");
}
-static int
-return_zero (void)
+/* 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)
{
- return 0;
-}
+ struct target_ops *t;
-static int
-return_one (void)
-{
- return 1;
-}
+ for (t = default_fileio_target (); t != NULL; t = t->beneath)
+ {
+ if (t->to_fileio_open != NULL)
+ {
+ int fd = t->to_fileio_open (filename, flags, mode, target_errno);
-static int
-return_minus_one (void)
-{
+ 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;
}
-/* Find a single runnable target in the stack and return it. If for
- some reason there is more than one, return NULL. */
-
-struct target_ops *
-find_run_target (void)
+/* 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;
- struct target_ops *runable = NULL;
- int count;
-
- count = 0;
+ 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_can_run && target_can_run (*t))
+ if (t->to_fileio_pwrite != NULL)
{
- runable = *t;
- ++count;
- }
- }
+ int ret = t->to_fileio_pwrite (fd, write_buf, len, offset,
+ target_errno);
- return (count == 1 ? runable : NULL);
+ 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;
}
-/* 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. */
+/* 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);
-struct target_ops *
-find_core_target (void)
+ 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;
- struct target_ops *runable = NULL;
- int count;
+ struct target_ops *t;
- count = 0;
+ 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);
- for (t = target_structs; t < target_structs + target_struct_size;
- ++t)
+ 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_stratum == core_stratum)
+ if (t->to_fileio_unlink != NULL)
{
- runable = *t;
- ++count;
+ 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 (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;
+}
- return (count == 1 ? runable : NULL);
+static int
+return_minus_one (void)
+{
+ return -1;
}
/*
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);
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. */
/* Error-catcher for target_find_memory_regions. */
static int
-dummy_find_memory_regions (int (*ignore1) (), void *ignore2)
+dummy_find_memory_regions (find_memory_region_ftype ignore1, void *ignore2)
{
error (_("Command not implemented for this target."));
return 0;
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_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_stopped_by_watchpoint = return_zero;
dummy_target.to_stopped_data_address =
(int (*) (struct target_ops *, CORE_ADDR *)) return_zero;
}
void
-target_close (struct target_ops *targ, int quitting)
+target_close (struct target_ops *targ)
{
+ gdb_assert (!target_is_pushed (targ));
+
if (targ->to_xclose != NULL)
- targ->to_xclose (targ, quitting);
+ targ->to_xclose (targ);
else if (targ->to_close != NULL)
- targ->to_close (quitting);
+ targ->to_close ();
if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
+ 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)
}
}
- internal_error (__FILE__, __LINE__,
- "could not find a target to attach");
+ 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",
+ PIDGET (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) (ptid);
+}
+
+static void
+debug_to_post_attach (int pid)
+{
+ debug_target.to_post_attach (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);
+
+ 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;
+ }
+ }
+
+ noprocess ();
+}
+
+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",
+ PIDGET (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. */
+
+int
+target_supports_btrace (void)
+{
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_supports_btrace != NULL)
+ return t->to_supports_btrace ();
+
+ return 0;
+}
+
+/* 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)
+ return t->to_disable_btrace (btinfo);
+
+ 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)
+ return t->to_teardown_btrace (btinfo);
+
+ tcomplain ();
+}
+
+/* See target.h. */
+
+VEC (btrace_block_s) *
+target_read_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 (btinfo, type);
+
+ tcomplain ();
+ return NULL;
+}
+
+/* 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 ();
}
-int
-target_thread_alive (ptid_t ptid)
+/* 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_thread_alive != NULL)
- {
- int retval;
-
- retval = t->to_thread_alive (t, ptid);
- if (targetdebug)
- fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
- PIDGET (ptid), retval);
- return retval;
- }
- }
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_goto_record_end != NULL)
+ {
+ t->to_goto_record_end ();
+ return;
+ }
- return 0;
+ tcomplain ();
}
+/* See target.h. */
+
void
-target_find_new_threads (void)
+target_goto_record (ULONGEST insn)
{
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_goto_record != NULL)
+ {
+ t->to_goto_record (insn);
+ return;
+ }
- return;
- }
- }
+ tcomplain ();
}
-static void
-debug_to_post_attach (int pid)
-{
- debug_target.to_post_attach (pid);
+/* See target.h. */
- fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
-}
+void
+target_insn_history (int size, int flags)
+{
+ struct target_ops *t;
-/* Return a pretty printed form of target_waitstatus.
- Space for the result is malloc'd, caller must free. */
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_insn_history != NULL)
+ {
+ t->to_insn_history (size, flags);
+ return;
+ }
-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);
- }
+ tcomplain ();
}
-static void
-debug_print_register (const char * func,
- struct regcache *regcache, int regno)
+/* See target.h. */
+
+void
+target_insn_history_from (ULONGEST from, int size, int flags)
{
- 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");
+ struct target_ops *t;
+
+ for (t = current_target.beneath; t != NULL; t = t->beneath)
+ if (t->to_insn_history_from != NULL)
+ {
+ t->to_insn_history_from (from, size, flags);
+ return;
+ }
+
+ tcomplain ();
}
+/* See target.h. */
+
void
-target_fetch_registers (struct regcache *regcache, int regno)
+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_fetch_registers != NULL)
- {
- t->to_fetch_registers (t, regcache, regno);
- if (targetdebug)
- debug_print_register ("target_fetch_registers", regcache, regno);
- return;
- }
- }
+ if (t->to_insn_history_range != NULL)
+ {
+ t->to_insn_history_range (begin, end, flags);
+ return;
+ }
+
+ tcomplain ();
}
+/* See target.h. */
+
void
-target_store_registers (struct regcache *regcache, int regno)
+target_call_history (int size, int flags)
{
-
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_call_history != NULL)
+ {
+ t->to_call_history (size, flags);
+ return;
+ }
- noprocess ();
+ tcomplain ();
}
-int
-target_core_of_thread (ptid_t ptid)
+/* See target.h. */
+
+void
+target_call_history_from (ULONGEST begin, int size, int flags)
{
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",
- PIDGET (ptid), retval);
- return retval;
- }
- }
+ if (t->to_call_history_from != NULL)
+ {
+ t->to_call_history_from (begin, size, flags);
+ return;
+ }
- return -1;
+ tcomplain ();
}
-int
-target_verify_memory (const gdb_byte *data, CORE_ADDR memaddr, ULONGEST size)
+/* See target.h. */
+
+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_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;
- }
- }
+ if (t->to_call_history_range != NULL)
+ {
+ t->to_call_history_range (begin, end, flags);
+ return;
+ }
tcomplain ();
}
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)
retval = debug_target.to_insert_breakpoint (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;
}
retval = debug_target.to_remove_breakpoint (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;
}
retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len);
fprintf_unfiltered (gdb_stdlog,
- "target_region_ok_for_hw_watchpoint (%ld, %ld) = 0x%lx\n",
- (unsigned long) addr,
- (unsigned long) len,
- (unsigned long) retval);
+ "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 (CORE_ADDR addr, int len, int rw,
+ struct expression *cond)
+{
+ int retval;
+
+ retval = debug_target.to_can_accel_watchpoint_condition (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;
}
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;
}
retval = debug_target.to_insert_hw_breakpoint (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;
}
retval = debug_target.to_remove_hw_breakpoint (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 (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 (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 (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 (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_info (char *arg, int from_tty)
+debug_to_terminal_info (const char *arg, int from_tty)
{
debug_target.to_terminal_info (arg, 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)
{
PIDGET (ptid));
}
-static void
-debug_to_acknowledge_created_inferior (int pid)
+static int
+debug_to_insert_fork_catchpoint (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 (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
return retval;
}
-static void
+static int
debug_to_insert_vfork_catchpoint (int pid)
{
- debug_target.to_insert_vfork_catchpoint (pid);
+ int retval;
+
+ retval = debug_target.to_insert_vfork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d) = %d\n",
+ pid, retval);
- fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n",
- pid);
+ return retval;
}
static int
return retval;
}
-static void
+static int
debug_to_insert_exec_catchpoint (int pid)
{
- debug_target.to_insert_exec_catchpoint (pid);
+ int retval;
- fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n",
- pid);
+ retval = debug_target.to_insert_exec_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
}
static int
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) = %s [%s]\n",
- target_pid_to_str (ptid), host_address_to_string (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;
}
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
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);
+}
+
+/* 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)
{
- fprintf_filtered (file, _("\
-Controlling the inferior in asynchronous mode is %s.\n"), value);
+ /* 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);
show_stack_cache_enabled_p,
&setlist, &showlist);
+ 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);
+
+ 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);
+
+
target_dcache = dcache_init ();
}
projects / deliverable / binutils-gdb.git / blobdiff