/* Memory-access and commands for "inferior" process, for GDB.
Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of GDB.
#include "ui-out.h"
#include "event-top.h"
#include "parser-defs.h"
+#include "regcache.h"
+#include "reggroups.h"
+#include "block.h"
+#include <ctype.h>
+#include "gdb_assert.h"
-/* Functions exported for general use: */
-
-void nofp_registers_info (char *, int);
+/* Functions exported for general use, in inferior.h: */
void all_registers_info (char *, int);
void registers_info (char *, int);
-/* Local functions: */
+void nexti_command (char *, int);
+
+void stepi_command (char *, int);
void continue_command (char *, int);
+void interrupt_target_command (char *args, int from_tty);
+
+/* Local functions: */
+
+static void nofp_registers_info (char *, int);
+
static void print_return_value (int struct_return, struct type *value_type);
static void finish_command_continuation (struct continuation_arg *);
static void detach_command (char *, int);
-static void interrupt_target_command (char *args, int from_tty);
+static void disconnect_command (char *, int);
static void unset_environment_command (char *, int);
static void step_once (int skip_subroutines, int single_inst, int count);
static void step_1_continuation (struct continuation_arg *arg);
-void nexti_command (char *, int);
-
-void stepi_command (char *, int);
-
static void next_command (char *, int);
static void step_command (char *, int);
#define GO_USAGE "Usage: go <location>\n"
-static void breakpoint_auto_delete_contents (PTR);
-
#define ERROR_NO_INFERIOR \
if (!target_has_execution) error ("The program is not being run.");
This is how we know when we step into a subroutine call,
and how to set the frame for the breakpoint used to step out. */
-CORE_ADDR step_frame_address;
+struct frame_id step_frame_id;
/* Our notion of the current stack pointer. */
/* Notice when `show args' is run. */
static void
-notice_args_read (struct cmd_list_element *c)
+notice_args_read (char *args, int from_tty, struct cmd_list_element *c)
{
/* Might compute the value. */
get_inferior_args ();
\f
/* Compute command-line string given argument vector. This does the
same shell processing as fork_inferior. */
-/* ARGSUSED */
char *
construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv)
{
/* We over-compute the size. It shouldn't matter. */
for (i = 0; i < argc; ++i)
- length += 2 * strlen (argv[i]) + 1;
+ length += 2 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0');
result = (char *) xmalloc (length);
out = result;
if (i > 0)
*out++ = ' ';
- for (cp = argv[i]; *cp; ++cp)
+ /* Need to handle empty arguments specially. */
+ if (argv[i][0] == '\0')
{
- if (strchr (special, *cp) != NULL)
- *out++ = '\\';
- *out++ = *cp;
+ *out++ = '\'';
+ *out++ = '\'';
+ }
+ else
+ {
+ for (cp = argv[i]; *cp; ++cp)
+ {
+ if (strchr (special, *cp) != NULL)
+ *out++ = '\\';
+ *out++ = *cp;
+ }
}
}
*out = '\0';
return 0;
}
-/* ARGSUSED */
void
tty_command (char *file, int from_tty)
{
\f
/* Step until outside of current statement. */
-/* ARGSUSED */
static void
step_command (char *count_string, int from_tty)
{
/* Likewise, but skip over subroutine calls as if single instructions. */
-/* ARGSUSED */
static void
next_command (char *count_string, int from_tty)
{
/* Likewise, but step only one instruction. */
-/* ARGSUSED */
void
stepi_command (char *count_string, int from_tty)
{
step_1 (0, 1, count_string);
}
-/* ARGSUSED */
void
nexti_command (char *count_string, int from_tty)
{
static void
step_1 (int skip_subroutines, int single_inst, char *count_string)
{
- register int count = 1;
+ int count = 1;
struct frame_info *frame;
struct cleanup *cleanups = 0;
int async_exec = 0;
frame = get_current_frame ();
if (!frame) /* Avoid coredump here. Why tho? */
error ("No current frame");
- step_frame_address = FRAME_FP (frame);
+ step_frame_id = get_frame_id (frame);
step_sp = read_sp ();
if (!single_inst)
if (!stop_step)
break;
-
- /* FIXME: On nexti, this may have already been done (when we hit the
- step resume break, I think). Probably this should be moved to
- wait_for_inferior (near the top). */
-#if defined (SHIFT_INST_REGS)
- SHIFT_INST_REGS ();
-#endif
}
if (!single_inst || skip_subroutines)
count = arg->next->next->data.integer;
if (stop_step)
- {
- /* FIXME: On nexti, this may have already been done (when we hit the
- step resume break, I think). Probably this should be moved to
- wait_for_inferior (near the top). */
-#if defined (SHIFT_INST_REGS)
- SHIFT_INST_REGS ();
-#endif
- step_once (skip_subroutines, single_inst, count - 1);
- }
+ step_once (skip_subroutines, single_inst, count - 1);
else
if (!single_inst || skip_subroutines)
do_exec_cleanups (ALL_CLEANUPS);
frame = get_current_frame ();
if (!frame) /* Avoid coredump here. Why tho? */
error ("No current frame");
- step_frame_address = FRAME_FP (frame);
+ step_frame_id = get_frame_id (frame);
step_sp = read_sp ();
if (!single_inst)
static void
jump_command (char *arg, int from_tty)
{
- register CORE_ADDR addr;
+ CORE_ADDR addr;
struct symtabs_and_lines sals;
struct symtab_and_line sal;
struct symbol *fn;
if (fn != NULL && sfn != fn)
{
if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line,
- SYMBOL_SOURCE_NAME (fn)))
+ SYMBOL_PRINT_NAME (fn)))
{
error ("Not confirmed.");
/* NOTREACHED */
proceed (oursig == TARGET_SIGNAL_0 ? (CORE_ADDR) -1 : stop_pc, oursig, 0);
}
-/* Call breakpoint_auto_delete on the current contents of the bpstat
- pointed to by arg (which is really a bpstat *). */
-
-static void
-breakpoint_auto_delete_contents (PTR arg)
-{
- breakpoint_auto_delete (*(bpstat *) arg);
-}
-
-
-/* Execute a "stack dummy", a piece of code stored in the stack
- by the debugger to be executed in the inferior.
-
- To call: first, do PUSH_DUMMY_FRAME.
- Then push the contents of the dummy. It should end with a breakpoint insn.
- Then call here, passing address at which to start the dummy.
-
- The contents of all registers are saved before the dummy frame is popped
- and copied into the buffer BUFFER.
-
- The dummy's frame is automatically popped whenever that break is hit.
- If that is the first time the program stops, run_stack_dummy
- returns to its caller with that frame already gone and returns 0.
-
- Otherwise, run_stack-dummy returns a non-zero value.
- If the called function receives a random signal, we do not allow the user
- to continue executing it as this may not work. The dummy frame is poped
- and we return 1.
- If we hit a breakpoint, we leave the frame in place and return 2 (the frame
- will eventually be popped when we do hit the dummy end breakpoint). */
-
-int
-run_stack_dummy (CORE_ADDR addr, char *buffer)
-{
- struct cleanup *old_cleanups = make_cleanup (null_cleanup, 0);
- int saved_async = 0;
-
- /* Now proceed, having reached the desired place. */
- clear_proceed_status ();
-
- if (CALL_DUMMY_BREAKPOINT_OFFSET_P)
- {
- struct breakpoint *bpt;
- struct symtab_and_line sal;
-
- INIT_SAL (&sal); /* initialize to zeroes */
- if (CALL_DUMMY_LOCATION == AT_ENTRY_POINT)
- {
- sal.pc = CALL_DUMMY_ADDRESS ();
- }
- else
- {
- sal.pc = addr - CALL_DUMMY_START_OFFSET + CALL_DUMMY_BREAKPOINT_OFFSET;
- }
- sal.section = find_pc_overlay (sal.pc);
-
- /* Set up a FRAME for the dummy frame so we can pass it to
- set_momentary_breakpoint. We need to give the breakpoint a
- frame in case there is only one copy of the dummy (e.g.
- CALL_DUMMY_LOCATION == AFTER_TEXT_END). */
- flush_cached_frames ();
- set_current_frame (create_new_frame (read_fp (), sal.pc));
-
- /* If defined, CALL_DUMMY_BREAKPOINT_OFFSET is where we need to put
- a breakpoint instruction. If not, the call dummy already has the
- breakpoint instruction in it.
-
- addr is the address of the call dummy plus the CALL_DUMMY_START_OFFSET,
- so we need to subtract the CALL_DUMMY_START_OFFSET. */
- bpt = set_momentary_breakpoint (sal,
- get_current_frame (),
- bp_call_dummy);
- bpt->disposition = disp_del;
-
- /* If all error()s out of proceed ended up calling normal_stop (and
- perhaps they should; it already does in the special case of error
- out of resume()), then we wouldn't need this. */
- make_cleanup (breakpoint_auto_delete_contents, &stop_bpstat);
- }
-
- disable_watchpoints_before_interactive_call_start ();
- proceed_to_finish = 1; /* We want stop_registers, please... */
-
- if (target_can_async_p ())
- saved_async = target_async_mask (0);
-
- proceed (addr, TARGET_SIGNAL_0, 0);
-
- if (saved_async)
- target_async_mask (saved_async);
-
- enable_watchpoints_after_interactive_call_stop ();
-
- discard_cleanups (old_cleanups);
-
- /* We can stop during an inferior call because a signal is received. */
- if (stopped_by_random_signal)
- return 1;
-
- /* We may also stop prematurely because we hit a breakpoint in the
- called routine. */
- if (!stop_stack_dummy)
- return 2;
-
- /* On normal return, the stack dummy has been popped already. */
-
- memcpy (buffer, stop_registers, REGISTER_BYTES);
- return 0;
-}
-\f
/* Proceed until we reach a different source line with pc greater than
our current one or exit the function. We skip calls in both cases.
we set. This may involve changes to wait_for_inferior and the
proceed status code. */
-/* ARGSUSED */
static void
until_next_command (int from_tty)
{
}
step_over_calls = STEP_OVER_ALL;
- step_frame_address = FRAME_FP (frame);
+ step_frame_id = get_frame_id (frame);
step_sp = read_sp ();
step_multi = 0; /* Only one call to proceed */
}
if (arg)
- until_break_command (arg, from_tty);
+ until_break_command (arg, from_tty, 0);
else
until_next_command (from_tty);
}
+
+static void
+advance_command (char *arg, int from_tty)
+{
+ int async_exec = 0;
+
+ if (!target_has_execution)
+ error ("The program is not running.");
+
+ if (arg == NULL)
+ error_no_arg ("a location");
+
+ /* Find out whether we must run in the background. */
+ if (arg != NULL)
+ async_exec = strip_bg_char (&arg);
+
+ /* If we must run in the background, but the target can't do it,
+ error out. */
+ if (event_loop_p && async_exec && !target_can_async_p ())
+ error ("Asynchronous execution not supported on this target.");
+
+ /* If we are not asked to run in the bg, then prepare to run in the
+ foreground, synchronously. */
+ if (event_loop_p && !async_exec && target_can_async_p ())
+ {
+ /* Simulate synchronous execution. */
+ async_disable_stdin ();
+ }
+
+ until_break_command (arg, from_tty, 1);
+}
\f
-/* Print the result of a function at the end of a 'finish' command. */
+/* Print the result of a function at the end of a 'finish' command. */
+
static void
-print_return_value (int structure_return, struct type *value_type)
+print_return_value (int struct_return, struct type *value_type)
{
+ struct cleanup *old_chain;
+ struct ui_stream *stb;
struct value *value;
- static struct ui_stream *stb = NULL;
- if (!structure_return)
+ if (!struct_return)
{
- value = value_being_returned (value_type, stop_registers, structure_return);
- stb = ui_out_stream_new (uiout);
- ui_out_text (uiout, "Value returned is ");
- ui_out_field_fmt (uiout, "gdb-result-var", "$%d", record_latest_value (value));
- ui_out_text (uiout, " = ");
- value_print (value, stb->stream, 0, Val_no_prettyprint);
- ui_out_field_stream (uiout, "return-value", stb);
- ui_out_text (uiout, "\n");
+ /* The return value can be found in the inferior's registers. */
+ value = register_value_being_returned (value_type, stop_registers);
}
- else
+ /* FIXME: cagney/2004-01-17: When both return_value and
+ extract_returned_value_address are available, should use that to
+ find the address of and then extract the returned value. */
+ /* FIXME: 2003-09-27: When returning from a nested inferior function
+ call, it's possible (with no help from the architecture vector)
+ to locate and return/print a "struct return" value. This is just
+ a more complicated case of what is already being done in in the
+ inferior function call code. In fact, when inferior function
+ calls are made async, this will likely be made the norm. */
+ else if (gdbarch_return_value_p (current_gdbarch))
+ /* We cannot determine the contents of the structure because it is
+ on the stack, and we don't know where, since we did not
+ initiate the call, as opposed to the call_function_by_hand
+ case. */
{
- /* We cannot determine the contents of the structure because
- it is on the stack, and we don't know where, since we did not
- initiate the call, as opposed to the call_function_by_hand case */
-#ifdef VALUE_RETURNED_FROM_STACK
- value = 0;
+ gdb_assert (gdbarch_return_value (current_gdbarch, value_type,
+ NULL, NULL, NULL)
+ == RETURN_VALUE_STRUCT_CONVENTION);
ui_out_text (uiout, "Value returned has type: ");
ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type));
ui_out_text (uiout, ".");
ui_out_text (uiout, " Cannot determine contents\n");
-#else
- value = value_being_returned (value_type, stop_registers, structure_return);
- stb = ui_out_stream_new (uiout);
- ui_out_text (uiout, "Value returned is ");
- ui_out_field_fmt (uiout, "gdb-result-var", "$%d", record_latest_value (value));
- ui_out_text (uiout, " = ");
- value_print (value, stb->stream, 0, Val_no_prettyprint);
- ui_out_field_stream (uiout, "return-value", stb);
- ui_out_text (uiout, "\n");
-#endif
+ return;
}
+ else
+ {
+ if (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P ())
+ {
+ CORE_ADDR addr = DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS (stop_registers);
+ if (!addr)
+ error ("Function return value unknown.");
+ value = value_at (value_type, addr, NULL);
+ }
+ else
+ {
+ /* It is "struct return" yet the value is being extracted,
+ presumably from registers, using EXTRACT_RETURN_VALUE.
+ This doesn't make sense. Unfortunately, the legacy
+ interfaces allowed this behavior. Sigh! */
+ value = allocate_value (value_type);
+ CHECK_TYPEDEF (value_type);
+ /* If the function returns void, don't bother fetching the
+ return value. */
+ EXTRACT_RETURN_VALUE (value_type, stop_registers,
+ VALUE_CONTENTS_RAW (value));
+ }
+ }
+
+ /* Print it. */
+ stb = ui_out_stream_new (uiout);
+ old_chain = make_cleanup_ui_out_stream_delete (stb);
+ ui_out_text (uiout, "Value returned is ");
+ ui_out_field_fmt (uiout, "gdb-result-var", "$%d",
+ record_latest_value (value));
+ ui_out_text (uiout, " = ");
+ value_print (value, stb->stream, 0, Val_no_prettyprint);
+ ui_out_field_stream (uiout, "return-value", stb);
+ ui_out_text (uiout, "\n");
+ do_cleanups (old_chain);
}
/* Stuff that needs to be done by the finish command after the target
- has stopped. In asynchronous mode, we wait for the target to stop in
- the call to poll or select in the event loop, so it is impossible to
- do all the stuff as part of the finish_command function itself. The
- only chance we have to complete this command is in
- fetch_inferior_event, which is called by the event loop as soon as it
- detects that the target has stopped. This function is called via the
- cmd_continuation pointer. */
-void
+ has stopped. In asynchronous mode, we wait for the target to stop
+ in the call to poll or select in the event loop, so it is
+ impossible to do all the stuff as part of the finish_command
+ function itself. The only chance we have to complete this command
+ is in fetch_inferior_event, which is called by the event loop as
+ soon as it detects that the target has stopped. This function is
+ called via the cmd_continuation pointer. */
+
+static void
finish_command_continuation (struct continuation_arg *arg)
{
- register struct symbol *function;
+ struct symbol *function;
struct breakpoint *breakpoint;
struct cleanup *cleanups;
breakpoint = (struct breakpoint *) arg->data.pointer;
- function = (struct symbol *) arg->next->data.pointer;
- cleanups = (struct cleanup *) arg->next->next->data.pointer;
+ function = (struct symbol *) arg->next->data.pointer;
+ cleanups = (struct cleanup *) arg->next->next->data.pointer;
if (bpstat_find_breakpoint (stop_bpstat, breakpoint) != NULL
- && function != 0)
+ && function != NULL)
{
struct type *value_type;
- CORE_ADDR funcaddr;
int struct_return;
+ int gcc_compiled;
value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function));
if (!value_type)
return;
}
- funcaddr = BLOCK_START (SYMBOL_BLOCK_VALUE (function));
-
- struct_return = using_struct_return (value_of_variable (function, NULL),
- funcaddr,
- check_typedef (value_type),
- BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function)));
+ CHECK_TYPEDEF (value_type);
+ gcc_compiled = BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function));
+ struct_return = using_struct_return (value_type, gcc_compiled);
print_return_value (struct_return, value_type);
}
+
do_exec_cleanups (cleanups);
}
-/* "finish": Set a temporary breakpoint at the place
- the selected frame will return to, then continue. */
+/* "finish": Set a temporary breakpoint at the place the selected
+ frame will return to, then continue. */
static void
finish_command (char *arg, int from_tty)
{
struct symtab_and_line sal;
- register struct frame_info *frame;
- register struct symbol *function;
+ struct frame_info *frame;
+ struct symbol *function;
struct breakpoint *breakpoint;
struct cleanup *old_chain;
struct continuation_arg *arg1, *arg2, *arg3;
int async_exec = 0;
- /* Find out whether we must run in the background. */
+ /* Find out whether we must run in the background. */
if (arg != NULL)
async_exec = strip_bg_char (&arg);
/* If we must run in the background, but the target can't do it,
- error out. */
+ error out. */
if (event_loop_p && async_exec && !target_can_async_p ())
error ("Asynchronous execution not supported on this target.");
/* If we are not asked to run in the bg, then prepare to run in the
- foreground, synchronously. */
+ foreground, synchronously. */
if (event_loop_p && !async_exec && target_can_async_p ())
{
- /* Simulate synchronous execution */
+ /* Simulate synchronous execution. */
async_disable_stdin ();
}
error ("The \"finish\" command does not take any arguments.");
if (!target_has_execution)
error ("The program is not running.");
- if (selected_frame == NULL)
+ if (deprecated_selected_frame == NULL)
error ("No selected frame.");
- frame = get_prev_frame (selected_frame);
+ frame = get_prev_frame (deprecated_selected_frame);
if (frame == 0)
error ("\"finish\" not meaningful in the outermost frame.");
clear_proceed_status ();
- sal = find_pc_line (frame->pc, 0);
- sal.pc = frame->pc;
+ sal = find_pc_line (get_frame_pc (frame), 0);
+ sal.pc = get_frame_pc (frame);
- breakpoint = set_momentary_breakpoint (sal, frame, bp_finish);
+ breakpoint = set_momentary_breakpoint (sal, get_frame_id (frame), bp_finish);
if (!event_loop_p || !target_can_async_p ())
old_chain = make_cleanup_delete_breakpoint (breakpoint);
/* Find the function we will return from. */
- function = find_pc_function (selected_frame->pc);
+ function = find_pc_function (get_frame_pc (deprecated_selected_frame));
- /* Print info on the selected frame, including level number
- but not source. */
+ /* Print info on the selected frame, including level number but not
+ source. */
if (from_tty)
{
printf_filtered ("Run till exit from ");
- print_stack_frame (selected_frame, selected_frame_level, 0);
+ print_stack_frame (deprecated_selected_frame,
+ frame_relative_level (deprecated_selected_frame), 0);
}
/* If running asynchronously and the target support asynchronous
execution, set things up for the rest of the finish command to be
completed later on, when gdb has detected that the target has
- stopped, in fetch_inferior_event. */
+ stopped, in fetch_inferior_event. */
if (event_loop_p && target_can_async_p ())
{
arg1 =
add_continuation (finish_command_continuation, arg1);
}
- proceed_to_finish = 1; /* We want stop_registers, please... */
+ proceed_to_finish = 1; /* We want stop_registers, please... */
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0);
/* Do this only if not running asynchronously or if the target
- cannot do async execution. Otherwise, complete this command when
- the target actually stops, in fetch_inferior_event. */
+ cannot do async execution. Otherwise, complete this command when
+ the target actually stops, in fetch_inferior_event. */
if (!event_loop_p || !target_can_async_p ())
{
-
- /* Did we stop at our breakpoint? */
+ /* Did we stop at our breakpoint? */
if (bpstat_find_breakpoint (stop_bpstat, breakpoint) != NULL
- && function != 0)
+ && function != NULL)
{
struct type *value_type;
- CORE_ADDR funcaddr;
int struct_return;
+ int gcc_compiled;
value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function));
if (!value_type)
internal_error (__FILE__, __LINE__,
"finish_command: function has no target type");
- /* FIXME: Shouldn't we do the cleanups before returning? */
+ /* FIXME: Shouldn't we do the cleanups before returning? */
if (TYPE_CODE (value_type) == TYPE_CODE_VOID)
return;
- funcaddr = BLOCK_START (SYMBOL_BLOCK_VALUE (function));
-
- struct_return =
- using_struct_return (value_of_variable (function, NULL),
- funcaddr,
- check_typedef (value_type),
- BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function)));
+ CHECK_TYPEDEF (value_type);
+ gcc_compiled = BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function));
+ struct_return = using_struct_return (value_type, gcc_compiled);
print_return_value (struct_return, value_type);
}
+
do_cleanups (old_chain);
}
}
\f
-/* ARGSUSED */
+
static void
program_info (char *args, int from_tty)
{
{
if (var)
{
- register char *val = get_in_environ (inferior_environ, var);
+ char *val = get_in_environ (inferior_environ, var);
if (val)
{
puts_filtered (var);
}
else
{
- register char **vector = environ_vector (inferior_environ);
+ char **vector = environ_vector (inferior_environ);
while (*vector)
{
puts_filtered (*vector++);
static void
set_environment_command (char *arg, int from_tty)
{
- register char *p, *val, *var;
+ char *p, *val, *var;
int nullset = 0;
if (arg == 0)
static const char path_var_name[] = "PATH";
-/* ARGSUSED */
static void
path_info (char *args, int from_tty)
{
}
\f
-#ifdef REGISTER_NAMES
-char *gdb_register_names[] = REGISTER_NAMES;
-#endif
-/* Print out the machine register regnum. If regnum is -1,
- print all registers (fpregs == 1) or all non-float registers
- (fpregs == 0).
+/* Print out the machine register regnum. If regnum is -1, print all
+ registers (print_all == 1) or all non-float and non-vector
+ registers (print_all == 0).
For most machines, having all_registers_info() print the
- register(s) one per line is good enough. If a different format
- is required, (eg, for MIPS or Pyramid 90x, which both have
- lots of regs), or there is an existing convention for showing
- all the registers, define the macro DO_REGISTERS_INFO(regnum, fp)
- to provide that format. */
+ register(s) one per line is good enough. If a different format is
+ required, (eg, for MIPS or Pyramid 90x, which both have lots of
+ regs), or there is an existing convention for showing all the
+ registers, define the architecture method PRINT_REGISTERS_INFO to
+ provide that format. */
void
-do_registers_info (int regnum, int fpregs)
+default_print_registers_info (struct gdbarch *gdbarch,
+ struct ui_file *file,
+ struct frame_info *frame,
+ int regnum, int print_all)
{
- register int i;
- int numregs = NUM_REGS + NUM_PSEUDO_REGS;
- char *raw_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
- char *virtual_buffer = (char*) alloca (MAX_REGISTER_VIRTUAL_SIZE);
+ int i;
+ const int numregs = NUM_REGS + NUM_PSEUDO_REGS;
+ char raw_buffer[MAX_REGISTER_SIZE];
+ char virtual_buffer[MAX_REGISTER_SIZE];
+
+ if (DEPRECATED_DO_REGISTERS_INFO_P ())
+ {
+ DEPRECATED_DO_REGISTERS_INFO (regnum, print_all);
+ return;
+ }
for (i = 0; i < numregs; i++)
{
- /* Decide between printing all regs, nonfloat regs, or specific reg. */
+ /* Decide between printing all regs, non-float / vector regs, or
+ specific reg. */
if (regnum == -1)
{
- if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT && !fpregs)
- continue;
+ if (print_all)
+ {
+ if (!gdbarch_register_reggroup_p (gdbarch, i, all_reggroup))
+ continue;
+ }
+ else
+ {
+ if (!gdbarch_register_reggroup_p (gdbarch, i, general_reggroup))
+ continue;
+ }
}
else
{
if (REGISTER_NAME (i) == NULL || *(REGISTER_NAME (i)) == '\0')
continue;
- fputs_filtered (REGISTER_NAME (i), gdb_stdout);
- print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), gdb_stdout);
+ fputs_filtered (REGISTER_NAME (i), file);
+ print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), file);
/* Get the data in raw format. */
- if (read_relative_register_raw_bytes (i, raw_buffer))
+ if (! frame_register_read (frame, i, raw_buffer))
{
- printf_filtered ("*value not available*\n");
+ fprintf_filtered (file, "*value not available*\n");
continue;
}
+ /* FIXME: cagney/2002-08-03: This code shouldn't be necessary.
+ The function frame_register_read() should have returned the
+ pre-cooked register so no conversion is necessary. */
/* Convert raw data to virtual format if necessary. */
- if (REGISTER_CONVERTIBLE (i))
+ if (DEPRECATED_REGISTER_CONVERTIBLE_P ()
+ && DEPRECATED_REGISTER_CONVERTIBLE (i))
{
- REGISTER_CONVERT_TO_VIRTUAL (i, REGISTER_VIRTUAL_TYPE (i),
+ DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL (i, register_type (current_gdbarch, i),
raw_buffer, virtual_buffer);
}
else
{
memcpy (virtual_buffer, raw_buffer,
- REGISTER_VIRTUAL_SIZE (i));
+ DEPRECATED_REGISTER_VIRTUAL_SIZE (i));
}
- /* If virtual format is floating, print it that way, and in raw hex. */
- if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT)
+ /* If virtual format is floating, print it that way, and in raw
+ hex. */
+ if (TYPE_CODE (register_type (current_gdbarch, i)) == TYPE_CODE_FLT)
{
- register int j;
+ int j;
-#ifdef INVALID_FLOAT
- if (INVALID_FLOAT (virtual_buffer, REGISTER_VIRTUAL_SIZE (i)))
- printf_filtered ("<invalid float>");
- else
-#endif
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 0, 1, 0, Val_pretty_default);
+ val_print (register_type (current_gdbarch, i), virtual_buffer, 0, 0,
+ file, 0, 1, 0, Val_pretty_default);
- printf_filtered ("\t(raw 0x");
- for (j = 0; j < REGISTER_RAW_SIZE (i); j++)
+ fprintf_filtered (file, "\t(raw 0x");
+ for (j = 0; j < DEPRECATED_REGISTER_RAW_SIZE (i); j++)
{
- register int idx = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? j
- : REGISTER_RAW_SIZE (i) - 1 - j;
- printf_filtered ("%02x", (unsigned char) raw_buffer[idx]);
+ int idx;
+ if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
+ idx = j;
+ else
+ idx = DEPRECATED_REGISTER_RAW_SIZE (i) - 1 - j;
+ fprintf_filtered (file, "%02x", (unsigned char) raw_buffer[idx]);
}
- printf_filtered (")");
+ fprintf_filtered (file, ")");
}
- /* Else print as integer in hex and in decimal. */
else
{
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 'x', 1, 0, Val_pretty_default);
- printf_filtered ("\t");
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 0, 1, 0, Val_pretty_default);
+ /* Print the register in hex. */
+ val_print (register_type (current_gdbarch, i), virtual_buffer, 0, 0,
+ file, 'x', 1, 0, Val_pretty_default);
+ /* If not a vector register, print it also according to its
+ natural format. */
+ if (TYPE_VECTOR (register_type (current_gdbarch, i)) == 0)
+ {
+ fprintf_filtered (file, "\t");
+ val_print (register_type (current_gdbarch, i), virtual_buffer, 0, 0,
+ file, 0, 1, 0, Val_pretty_default);
+ }
}
- /* The SPARC wants to print even-numbered float regs as doubles
- in addition to printing them as floats. */
-#ifdef PRINT_REGISTER_HOOK
- PRINT_REGISTER_HOOK (i);
-#endif
-
- printf_filtered ("\n");
+ fprintf_filtered (file, "\n");
}
}
registers_info (char *addr_exp, int fpregs)
{
int regnum, numregs;
- register char *end;
+ char *end;
if (!target_has_registers)
error ("The program has no registers now.");
- if (selected_frame == NULL)
+ if (deprecated_selected_frame == NULL)
error ("No selected frame.");
if (!addr_exp)
{
- DO_REGISTERS_INFO (-1, fpregs);
+ gdbarch_print_registers_info (current_gdbarch, gdb_stdout,
+ deprecated_selected_frame, -1, fpregs);
return;
}
- do
+ while (*addr_exp != '\0')
{
- if (addr_exp[0] == '$')
- addr_exp++;
- end = addr_exp;
- while (*end != '\0' && *end != ' ' && *end != '\t')
- ++end;
- numregs = NUM_REGS + NUM_PSEUDO_REGS;
-
- regnum = target_map_name_to_register (addr_exp, end - addr_exp);
- if (regnum >= 0)
- goto found;
+ char *start;
+ const char *end;
- regnum = numregs;
+ /* Keep skipping leading white space. */
+ if (isspace ((*addr_exp)))
+ {
+ addr_exp++;
+ continue;
+ }
- if (*addr_exp >= '0' && *addr_exp <= '9')
- regnum = atoi (addr_exp); /* Take a number */
- if (regnum >= numregs) /* Bad name, or bad number */
- error ("%.*s: invalid register", end - addr_exp, addr_exp);
+ /* Discard any leading ``$''. Check that there is something
+ resembling a register following it. */
+ if (addr_exp[0] == '$')
+ addr_exp++;
+ if (isspace ((*addr_exp)) || (*addr_exp) == '\0')
+ error ("Missing register name");
- found:
- DO_REGISTERS_INFO (regnum, fpregs);
+ /* Find the start/end of this register name/num/group. */
+ start = addr_exp;
+ while ((*addr_exp) != '\0' && !isspace ((*addr_exp)))
+ addr_exp++;
+ end = addr_exp;
+
+ /* Figure out what we've found and display it. */
+
+ /* A register name? */
+ {
+ int regnum = frame_map_name_to_regnum (deprecated_selected_frame,
+ start, end - start);
+ if (regnum >= 0)
+ {
+ gdbarch_print_registers_info (current_gdbarch, gdb_stdout,
+ deprecated_selected_frame, regnum, fpregs);
+ continue;
+ }
+ }
+
+ /* A register number? (how portable is this one?). */
+ {
+ char *endptr;
+ int regnum = strtol (start, &endptr, 0);
+ if (endptr == end
+ && regnum >= 0
+ && regnum < NUM_REGS + NUM_PSEUDO_REGS)
+ {
+ gdbarch_print_registers_info (current_gdbarch, gdb_stdout,
+ deprecated_selected_frame, regnum, fpregs);
+ continue;
+ }
+ }
+
+ /* A register group? */
+ {
+ struct reggroup *group;
+ for (group = reggroup_next (current_gdbarch, NULL);
+ group != NULL;
+ group = reggroup_next (current_gdbarch, group))
+ {
+ /* Don't bother with a length check. Should the user
+ enter a short register group name, go with the first
+ group that matches. */
+ if (strncmp (start, reggroup_name (group), end - start) == 0)
+ break;
+ }
+ if (group != NULL)
+ {
+ int regnum;
+ for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++)
+ {
+ if (gdbarch_register_reggroup_p (current_gdbarch, regnum,
+ group))
+ gdbarch_print_registers_info (current_gdbarch,
+ gdb_stdout, deprecated_selected_frame,
+ regnum, fpregs);
+ }
+ continue;
+ }
+ }
- addr_exp = end;
- while (*addr_exp == ' ' || *addr_exp == '\t')
- ++addr_exp;
+ /* Nothing matched. */
+ error ("Invalid register `%.*s'", (int) (end - start), start);
}
- while (*addr_exp != '\0');
}
void
registers_info (addr_exp, 1);
}
-void
+static void
nofp_registers_info (char *addr_exp, int from_tty)
{
registers_info (addr_exp, 0);
}
+
+static void
+print_vector_info (struct gdbarch *gdbarch, struct ui_file *file,
+ struct frame_info *frame, const char *args)
+{
+ if (!target_has_registers)
+ error ("The program has no registers now.");
+ if (deprecated_selected_frame == NULL)
+ error ("No selected frame.");
+
+ if (gdbarch_print_vector_info_p (gdbarch))
+ gdbarch_print_vector_info (gdbarch, file, frame, args);
+ else
+ {
+ int regnum;
+ int printed_something = 0;
+
+ for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++)
+ {
+ if (gdbarch_register_reggroup_p (gdbarch, regnum, vector_reggroup))
+ {
+ printed_something = 1;
+ gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1);
+ }
+ }
+ if (!printed_something)
+ fprintf_filtered (file, "No vector information\n");
+ }
+}
+
+static void
+vector_info (char *args, int from_tty)
+{
+ print_vector_info (current_gdbarch, gdb_stdout, deprecated_selected_frame, args);
+}
\f
/*
/* No traps are generated when attaching to inferior under Mach 3
or GNU hurd. */
#ifndef ATTACH_NO_WAIT
- stop_soon_quietly = 1;
+ /* Careful here. See comments in inferior.h. Basically some OSes
+ don't ignore SIGSTOPs on continue requests anymore. We need a
+ way for handle_inferior_event to reset the stop_signal variable
+ after an attach, and this is what STOP_QUIETLY_NO_SIGSTOP is for. */
+ stop_soon = STOP_QUIETLY_NO_SIGSTOP;
wait_for_inferior ();
+ stop_soon = NO_STOP_QUIETLY;
#endif
/*
detach_hook ();
}
-/* Stop the execution of the target while running in async mode, in
- the backgound. */
+/* Disconnect from the current target without resuming it (leaving it
+ waiting for a debugger).
-void
-interrupt_target_command_wrapper (char *args, int from_tty)
+ We'd better not have left any breakpoints in the program or the
+ next debugger will get confused. Currently only supported for some
+ remote targets, since the normal attach mechanisms don't work on
+ stopped processes on some native platforms (e.g. GNU/Linux). */
+
+static void
+disconnect_command (char *args, int from_tty)
{
- interrupt_target_command (args, from_tty);
+ dont_repeat (); /* Not for the faint of heart */
+ target_disconnect (args, from_tty);
+#if defined(SOLIB_RESTART)
+ SOLIB_RESTART ();
+#endif
+ if (detach_hook)
+ detach_hook ();
}
-static void
+/* Stop the execution of the target while running in async mode, in
+ the backgound. */
+void
interrupt_target_command (char *args, int from_tty)
{
if (event_loop_p && target_can_async_p ())
}
}
-/* ARGSUSED */
static void
-float_info (char *addr_exp, int from_tty)
+print_float_info (struct gdbarch *gdbarch, struct ui_file *file,
+ struct frame_info *frame, const char *args)
{
-#ifdef FLOAT_INFO
- FLOAT_INFO;
-#else
- printf_filtered ("No floating point info available for this processor.\n");
-#endif
+ if (!target_has_registers)
+ error ("The program has no registers now.");
+ if (deprecated_selected_frame == NULL)
+ error ("No selected frame.");
+
+ if (gdbarch_print_float_info_p (gdbarch))
+ gdbarch_print_float_info (gdbarch, file, frame, args);
+ else
+ {
+ int regnum;
+ int printed_something = 0;
+
+ for (regnum = 0; regnum < NUM_REGS + NUM_PSEUDO_REGS; regnum++)
+ {
+ if (gdbarch_register_reggroup_p (gdbarch, regnum, float_reggroup))
+ {
+ printed_something = 1;
+ gdbarch_print_registers_info (gdbarch, file, frame, regnum, 1);
+ }
+ }
+ if (!printed_something)
+ fprintf_filtered (file, "\
+No floating-point info available for this processor.\n");
+ }
+}
+
+static void
+float_info (char *args, int from_tty)
+{
+ print_float_info (current_gdbarch, gdb_stdout, deprecated_selected_frame, args);
}
\f
-/* ARGSUSED */
static void
unset_command (char *args, int from_tty)
{
c = add_com ("tty", class_run, tty_command,
"Set terminal for future runs of program being debugged.");
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
c = add_set_cmd ("args", class_run, var_string_noescape,
(char *) &inferior_args,
"Set argument list to give program being debugged when it is started.\n\
Follow this command with any number of args, to be passed to the program.",
&setlist);
- c->completer = filename_completer;
- c->function.sfunc = notice_args_set;
+ set_cmd_completer (c, filename_completer);
+ set_cmd_sfunc (c, notice_args_set);
c = add_show_from_set (c, &showlist);
- c->pre_show_hook = notice_args_read;
+ set_cmd_sfunc (c, notice_args_read);
c = add_cmd
("environment", no_class, environment_info,
With an argument VAR, prints the value of environment variable VAR to\n\
give the program being debugged. With no arguments, prints the entire\n\
environment to be given to the program.", &showlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
add_prefix_cmd ("unset", no_class, unset_command,
- "Complement to certain \"set\" commands",
+ "Complement to certain \"set\" commands.",
&unsetlist, "unset ", 0, &cmdlist);
c = add_cmd ("environment", class_run, unset_environment_command,
"Cancel environment variable VAR for the program.\n\
This does not affect the program until the next \"run\" command.",
&unsetlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
c = add_cmd ("environment", class_run, set_environment_command,
"Set environment variable value to give the program.\n\
VALUES of environment variables are uninterpreted strings.\n\
This does not affect the program until the next \"run\" command.",
&setlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
c = add_com ("path", class_files, path_command,
"Add directory DIR(s) to beginning of search path for object files.\n\
This path is equivalent to the $PATH shell variable. It is a list of\n\
directories, separated by colons. These directories are searched to find\n\
fully linked executable files and separately compiled object files as needed.");
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
c = add_cmd ("paths", no_class, path_info,
"Current search path for finding object files.\n\
directories, separated by colons. These directories are searched to find\n\
fully linked executable files and separately compiled object files as needed.",
&showlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
add_com ("attach", class_run, attach_command,
"Attach to a process or file outside of GDB.\n\
If a process, it is no longer traced, and it continues its execution. If\n\
you were debugging a file, the file is closed and gdb no longer accesses it.");
+ add_com ("disconnect", class_run, disconnect_command,
+ "Disconnect from a target.\n\
+The target will wait for another debugger to connect. Not available for\n\
+all targets.");
+
add_com ("signal", class_run, signal_command,
"Continue program giving it signal specified by the argument.\n\
An argument of \"0\" means continue program without giving it a signal.");
c = add_com ("until", class_run, until_command,
"Execute until the program reaches a source line greater than the current\n\
-or a specified line or address or function (same args as break command).\n\
-Execution will also stop upon exit from the current stack frame.");
- c->completer = location_completer;
+or a specified location (same args as break command) within the current frame.");
+ set_cmd_completer (c, location_completer);
add_com_alias ("u", "until", class_run, 1);
+ c = add_com ("advance", class_run, advance_command,
+ "Continue the program up to the given location (same form as args for break command).\n\
+Execution will also stop upon exit from the current stack frame.");
+ set_cmd_completer (c, location_completer);
+
c = add_com ("jump", class_run, jump_command,
"Continue program being debugged at specified line or address.\n\
Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
for an address to start at.");
- c->completer = location_completer;
+ set_cmd_completer (c, location_completer);
if (xdb_commands)
{
Give as argument either LINENUM or *ADDR, where ADDR is an \n\
expression for an address to start at.\n\
This command is a combination of tbreak and jump.");
- c->completer = location_completer;
+ set_cmd_completer (c, location_completer);
}
if (xdb_commands)
With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
To cancel previous arguments and run with no arguments,\n\
use \"set args\" without arguments.");
- c->completer = filename_completer;
+ set_cmd_completer (c, filename_completer);
add_com_alias ("r", "run", class_run, 1);
if (xdb_commands)
add_com ("R", class_run, run_no_args_command,
add_info ("float", float_info,
"Print the status of the floating point unit\n");
+ add_info ("vector", vector_info,
+ "Print the status of the vector unit\n");
+
inferior_environ = make_environ ();
init_environ (inferior_environ);
}