-/* Memory-access and commands for "inferior" (child) process, for GDB.
- Copyright 1986, 1987, 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+/* Memory-access and commands for "inferior" process, for GDB.
+ Copyright 1986, 87, 88, 89, 91, 92, 95, 96, 1998
+ Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
#include <signal.h>
-#include <sys/param.h>
-#include <string.h>
+#include "gdb_string.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "frame.h"
#include "gdbcmd.h"
#include "gdbcore.h"
#include "target.h"
+#include "language.h"
+#include "symfile.h"
+#include "objfiles.h"
-static void
-continue_command PARAMS ((char *, int));
+/* Functions exported for general use: */
-static void
-until_next_command PARAMS ((int));
+void nofp_registers_info PARAMS ((char *, int));
-static void
-until_command PARAMS ((char *, int));
+void all_registers_info PARAMS ((char *, int));
-static void
-path_info PARAMS ((char *, int));
+void registers_info PARAMS ((char *, int));
-static void
-path_command PARAMS ((char *, int));
+/* Local functions: */
-static void
-unset_command PARAMS ((char *, int));
+void continue_command PARAMS ((char *, int));
-static void
-float_info PARAMS ((char *, int));
+static void until_next_command PARAMS ((int));
-static void
-detach_command PARAMS ((char *, int));
+static void until_command PARAMS ((char *, int));
-static void
-nofp_registers_info PARAMS ((char *, int));
+static void path_info PARAMS ((char *, int));
-static void
-all_registers_info PARAMS ((char *, int));
+static void path_command PARAMS ((char *, int));
-static void
-registers_info PARAMS ((char *, int));
+static void unset_command PARAMS ((char *, int));
-static void
-do_registers_info PARAMS ((int, int));
+static void float_info PARAMS ((char *, int));
-static void
-unset_environment_command PARAMS ((char *, int));
+static void detach_command PARAMS ((char *, int));
-static void
-set_environment_command PARAMS ((char *, int));
+#if !defined (DO_REGISTERS_INFO)
+static void do_registers_info PARAMS ((int, int));
+#endif
-static void
-environment_info PARAMS ((char *, int));
+static void unset_environment_command PARAMS ((char *, int));
-static void
-program_info PARAMS ((char *, int));
+static void set_environment_command PARAMS ((char *, int));
-static void
-finish_command PARAMS ((char *, int));
+static void environment_info PARAMS ((char *, int));
-static void
-signal_command PARAMS ((char *, int));
+static void program_info PARAMS ((char *, int));
-static void
-jump_command PARAMS ((char *, int));
+static void finish_command PARAMS ((char *, int));
-static void
-step_1 PARAMS ((int, int, char *));
+static void signal_command PARAMS ((char *, int));
-static void
-nexti_command PARAMS ((char *, int));
+static void jump_command PARAMS ((char *, int));
-static void
-stepi_command PARAMS ((char *, int));
+static void step_1 PARAMS ((int, int, char *));
-static void
-next_command PARAMS ((char *, int));
+void nexti_command PARAMS ((char *, int));
-static void
-step_command PARAMS ((char *, int));
+void stepi_command PARAMS ((char *, int));
-static void
-run_command PARAMS ((char *, int));
+static void next_command PARAMS ((char *, int));
+
+static void step_command PARAMS ((char *, int));
+
+static void run_command PARAMS ((char *, int));
+
+void _initialize_infcmd PARAMS ((void));
+
+#define GO_USAGE "Usage: go <location>\n"
+
+#ifdef CALL_DUMMY_BREAKPOINT_OFFSET
+static void breakpoint_auto_delete_contents PARAMS ((PTR));
+#endif
#define ERROR_NO_INFERIOR \
if (!target_has_execution) error ("The program is not being run.");
/* Last signal that the inferior received (why it stopped). */
-int stop_signal;
+enum target_signal stop_signal;
/* Address at which inferior stopped. */
CORE_ADDR stop_pc;
-/* Stack frame when program stopped. */
-
-FRAME_ADDR stop_frame_address;
-
/* Chain containing status of breakpoint(s) that we have stopped at. */
bpstat stop_bpstat;
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. */
-FRAME_ADDR step_frame_address;
+CORE_ADDR step_frame_address;
+
+/* Our notion of the current stack pointer. */
+
+CORE_ADDR step_sp;
/* 1 means step over all subroutine calls.
0 means don't step over calls (used by stepi).
dont_repeat ();
- if (inferior_pid)
+ if (inferior_pid != 0 && target_has_execution)
{
if (
!query ("The program being debugged has been started already.\n\
Start it from the beginning? "))
error ("Program not restarted.");
target_kill ();
+#if defined(SOLIB_RESTART)
+ SOLIB_RESTART ();
+#endif
+ init_wait_for_inferior ();
}
+ clear_breakpoint_hit_counts ();
+
exec_file = (char *) get_exec_file (0);
+ /* Purge old solib objfiles. */
+ objfile_purge_solibs ();
+
+ do_run_cleanups (NULL);
+
/* The exec file is re-read every time we do a generic_mourn_inferior, so
we just have to worry about the symbol file. */
reread_symbols ();
+ /* We keep symbols from add-symbol-file, on the grounds that the
+ user might want to add some symbols before running the program
+ (right?). But sometimes (dynamic loading where the user manually
+ introduces the new symbols with add-symbol-file), the code which
+ the symbols describe does not persist between runs. Currently
+ the user has to manually nuke all symbols between runs if they
+ want them to go away (PR 2207). This is probably reasonable. */
+
if (args)
{
char *cmd;
puts_filtered(" ");
puts_filtered(inferior_args);
puts_filtered("\n");
- fflush (stdout);
+ gdb_flush (gdb_stdout);
}
target_create_inferior (exec_file, inferior_args,
environ_vector (inferior_environ));
}
-\f
+
+
static void
+run_no_args_command (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ execute_command("set args", from_tty);
+ run_command((char *)NULL, from_tty);
+}
+
+\f
+void
continue_command (proc_count_exp, from_tty)
char *proc_count_exp;
int from_tty;
clear_proceed_status ();
- proceed ((CORE_ADDR) -1, -1, 0);
+ proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0);
}
\f
/* Step until outside of current statement. */
/* Likewise, but step only one instruction. */
/* ARGSUSED */
-static void
+void
stepi_command (count_string, from_tty)
char *count_string;
int from_tty;
}
/* ARGSUSED */
-static void
+void
nexti_command (count_string, from_tty)
char *count_string;
int from_tty;
char *count_string;
{
register int count = 1;
- FRAME fr;
+ struct frame_info *frame;
struct cleanup *cleanups = 0;
ERROR_NO_INFERIOR;
if (!single_inst || skip_subroutines) /* leave si command alone */
{
enable_longjmp_breakpoint();
- cleanups = make_cleanup(disable_longjmp_breakpoint, 0);
+ cleanups = make_cleanup ((make_cleanup_func) disable_longjmp_breakpoint,
+ 0);
}
for (; count > 0; count--)
{
clear_proceed_status ();
- fr = get_current_frame ();
- if (!fr) /* Avoid coredump here. Why tho? */
+ frame = get_current_frame ();
+ if (!frame) /* Avoid coredump here. Why tho? */
error ("No current frame");
- step_frame_address = FRAME_FP (fr);
+ step_frame_address = FRAME_FP (frame);
+ step_sp = read_sp ();
if (! single_inst)
{
find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end);
if (step_range_end == 0)
{
- struct minimal_symbol *msymbol;
+ char *name;
+ if (find_pc_partial_function (stop_pc, &name, &step_range_start,
+ &step_range_end) == 0)
+ error ("Cannot find bounds of current function");
- msymbol = lookup_minimal_symbol_by_pc (stop_pc);
target_terminal_ours ();
- printf_filtered ("Current function has no line number information.\n");
- fflush (stdout);
-
- /* No info or after _etext ("Can't happen") */
- if (msymbol == NULL || (msymbol + 1) -> name == NULL)
- error ("No data available on pc function.");
-
- printf_filtered ("Single stepping until function exit.\n");
- fflush (stdout);
-
- step_range_start = msymbol -> address;
- step_range_end = (msymbol + 1) -> address;
+ printf_filtered ("\
+Single stepping until exit from function %s, \n\
+which has no line number information.\n", name);
}
}
else
{
- /* Say we are stepping, but stop after one insn whatever it does.
- Don't step through subroutine calls even to undebuggable
- functions. */
+ /* Say we are stepping, but stop after one insn whatever it does. */
step_range_start = step_range_end = 1;
if (!skip_subroutines)
+ /* It is stepi.
+ Don't step over function calls, not even to functions lacking
+ line numbers. */
step_over_calls = 0;
}
step_over_calls = 1;
step_multi = (count > 1);
- proceed ((CORE_ADDR) -1, -1, 1);
+ proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1);
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)
- write_register (NNPC_REGNUM, read_register (NPC_REGNUM));
- write_register (NPC_REGNUM, read_register (PC_REGNUM));
+ SHIFT_INST_REGS();
#endif
}
struct symtab_and_line sal;
struct symbol *fn;
struct symbol *sfn;
- char *fname;
- struct cleanup *back_to;
ERROR_NO_INFERIOR;
sfn = find_pc_function (sal.pc);
if (fn != NULL && sfn != fn)
{
- fname = strdup_demangled (SYMBOL_NAME (fn));
- back_to = make_cleanup (free, fname);
- if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, fname))
+ if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line,
+ SYMBOL_SOURCE_NAME (fn)))
{
error ("Not confirmed.");
/* NOTREACHED */
}
- do_cleanups (back_to);
}
- addr = ADDR_BITS_SET (sal.pc);
+ if (sfn != NULL)
+ {
+ fixup_symbol_section (sfn, 0);
+ if (section_is_overlay (SYMBOL_BFD_SECTION (sfn)) &&
+ !section_is_mapped (SYMBOL_BFD_SECTION (sfn)))
+ {
+ if (!query ("WARNING!!! Destination is in unmapped overlay! Jump anyway? "))
+ {
+ error ("Not confirmed.");
+ /* NOTREACHED */
+ }
+ }
+ }
+
+
+ addr = sal.pc;
if (from_tty)
- printf_filtered ("Continuing at %s.\n", local_hex_string(addr));
+ {
+ printf_filtered ("Continuing at ");
+ print_address_numeric (addr, 1, gdb_stdout);
+ printf_filtered (".\n");
+ }
clear_proceed_status ();
- proceed (addr, 0, 0);
+ proceed (addr, TARGET_SIGNAL_0, 0);
}
+\f
+/* Go to line or address in current procedure */
+static void
+go_command(line_no, from_tty)
+ char *line_no;
+ int from_tty;
+{
+ if (line_no == (char *)NULL || !*line_no)
+ printf_filtered(GO_USAGE);
+ else
+ {
+ tbreak_command(line_no, from_tty);
+ jump_command(line_no, from_tty);
+ }
+}
+
+\f
/* Continue program giving it specified signal. */
static void
char *signum_exp;
int from_tty;
{
- register int signum;
+ enum target_signal oursig;
dont_repeat (); /* Too dangerous. */
ERROR_NO_INFERIOR;
if (!signum_exp)
error_no_arg ("signal number");
- signum = parse_and_eval_address (signum_exp);
+ /* It would be even slicker to make signal names be valid expressions,
+ (the type could be "enum $signal" or some such), then the user could
+ assign them to convenience variables. */
+ oursig = target_signal_from_name (signum_exp);
+
+ if (oursig == TARGET_SIGNAL_UNKNOWN)
+ {
+ /* No, try numeric. */
+ int num = parse_and_eval_address (signum_exp);
+
+ if (num == 0)
+ oursig = TARGET_SIGNAL_0;
+ else
+ oursig = target_signal_from_command (num);
+ }
if (from_tty)
- printf_filtered ("Continuing with signal %d.\n", signum);
+ {
+ if (oursig == TARGET_SIGNAL_0)
+ printf_filtered ("Continuing with no signal.\n");
+ else
+ printf_filtered ("Continuing with signal %s.\n",
+ target_signal_to_name (oursig));
+ }
clear_proceed_status ();
- proceed (stop_pc, signum, 0);
+ /* "signal 0" should not get stuck if we are stopped at a breakpoint.
+ FIXME: Neither should "signal foo" but when I tried passing
+ (CORE_ADDR)-1 unconditionally I got a testsuite failure which I haven't
+ tried to track down yet. */
+ 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 *). */
+
+#ifdef CALL_DUMMY_BREAKPOINT_OFFSET
+
+static void
+breakpoint_auto_delete_contents (arg)
+ PTR arg;
+{
+ breakpoint_auto_delete (*(bpstat *)arg);
+}
+
+#endif /* CALL_DUMMY_BREAKPOINT_OFFSET */
+
/* Execute a "stack dummy", a piece of code stored in the stack
by the debugger to be executed in the inferior.
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.
- Otherwise, the caller never gets returned to. */
+ returns to its caller with that frame already gone and returns 0.
+ Otherwise, run_stack-dummy returns 1 (the frame will eventually be popped
+ when we do hit that breakpoint). */
/* DEBUG HOOK: 4 => return instead of letting the stack dummy run. */
static int stack_dummy_testing = 0;
-void
+int
run_stack_dummy (addr, buffer)
CORE_ADDR addr;
char buffer[REGISTER_BYTES];
{
+ struct cleanup *old_cleanups = make_cleanup (null_cleanup, 0);
+
/* Now proceed, having reached the desired place. */
clear_proceed_status ();
if (stack_dummy_testing & 4)
{
POP_FRAME;
- return;
+ return(0);
}
+#ifdef CALL_DUMMY_BREAKPOINT_OFFSET
+ {
+ struct breakpoint *bpt;
+ struct symtab_and_line sal;
+
+ INIT_SAL (&sal); /* initialize to zeroes */
+#if CALL_DUMMY_LOCATION != AT_ENTRY_POINT
+ sal.pc = addr - CALL_DUMMY_START_OFFSET + CALL_DUMMY_BREAKPOINT_OFFSET;
+#else
+ sal.pc = CALL_DUMMY_ADDRESS ();
+#endif
+ 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 = 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);
+ }
+#endif /* CALL_DUMMY_BREAKPOINT_OFFSET. */
+
+ disable_watchpoints_before_interactive_call_start ();
proceed_to_finish = 1; /* We want stop_registers, please... */
- proceed (addr, 0, 0);
+ proceed (addr, TARGET_SIGNAL_0, 0);
+ enable_watchpoints_after_interactive_call_stop ();
+
+ discard_cleanups (old_cleanups);
if (!stop_stack_dummy)
- /* This used to say
- "Cannot continue previously requested operation". */
- error ("\
-The program being debugged stopped while in a function called from GDB.\n\
-The expression which contained the function call has been discarded.");
+ return 1;
/* On return, the stack dummy has been popped already. */
memcpy (buffer, stop_registers, sizeof stop_registers);
+ return 0;
}
\f
/* Proceed until we reach a different source line with pc greater than
Note that eventually this command should probably be changed so
that only source lines are printed out when we hit the breakpoint
- we set. I'm going to postpone this until after a hopeful rewrite
- of wait_for_inferior and the proceed status code. -- randy */
+ we set. This may involve changes to wait_for_inferior and the
+ proceed status code. */
/* ARGSUSED */
static void
until_next_command (from_tty)
int from_tty;
{
- FRAME frame;
+ struct frame_info *frame;
CORE_ADDR pc;
struct symbol *func;
struct symtab_and_line sal;
if (msymbol == NULL)
error ("Execution is not within a known function.");
- step_range_start = msymbol -> address;
+ step_range_start = SYMBOL_VALUE_ADDRESS (msymbol);
step_range_end = pc;
}
else
step_over_calls = 1;
step_frame_address = FRAME_FP (frame);
-
+ step_sp = read_sp ();
+
step_multi = 0; /* Only one call to proceed */
- proceed ((CORE_ADDR) -1, -1, 1);
+ proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1);
}
static void
int from_tty;
{
struct symtab_and_line sal;
- register FRAME frame;
- struct frame_info *fi;
+ register struct frame_info *frame;
register struct symbol *function;
struct breakpoint *breakpoint;
struct cleanup *old_chain;
clear_proceed_status ();
- fi = get_frame_info (frame);
- sal = find_pc_line (fi->pc, 0);
- sal.pc = fi->pc;
+ sal = find_pc_line (frame->pc, 0);
+ sal.pc = frame->pc;
breakpoint = set_momentary_breakpoint (sal, frame, bp_finish);
- old_chain = make_cleanup(delete_breakpoint, breakpoint);
+ old_chain = make_cleanup ((make_cleanup_func) delete_breakpoint, breakpoint);
/* Find the function we will return from. */
- fi = get_frame_info (selected_frame);
- function = find_pc_function (fi->pc);
+ function = find_pc_function (selected_frame->pc);
/* Print info on the selected frame, including level number
but not source. */
}
proceed_to_finish = 1; /* We want stop_registers, please... */
- proceed ((CORE_ADDR) -1, -1, 0);
+ proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0);
/* Did we stop at our breakpoint? */
if (bpstat_find_breakpoint(stop_bpstat, breakpoint) != NULL
&& function != 0)
{
struct type *value_type;
- register value val;
+ register value_ptr val;
CORE_ADDR funcaddr;
+ int struct_return;
value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function));
if (!value_type)
funcaddr = BLOCK_START (SYMBOL_BLOCK_VALUE (function));
- val = value_being_returned (value_type, stop_registers,
- using_struct_return (value_of_variable (function),
- funcaddr,
- value_type,
- BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function))));
+ struct_return = using_struct_return (value_of_variable (function, NULL),
- printf_filtered ("Value returned is $%d = ", record_latest_value (val));
- value_print (val, stdout, 0, Val_no_prettyprint);
- printf_filtered ("\n");
+ funcaddr,
+ check_typedef (value_type),
+ BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function)));
+
+ if (!struct_return)
+ {
+ val = value_being_returned (value_type, stop_registers, struct_return);
+ printf_filtered ("Value returned is $%d = ", record_latest_value (val));
+ value_print (val, gdb_stdout, 0, Val_no_prettyprint);
+ printf_filtered ("\n");
+ }
+ else
+ {
+ /* elz: 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
+ val = 0;
+ printf_filtered ("Value returned has type: %s.", TYPE_NAME (value_type));
+ printf_filtered (" Cannot determine contents\n");
+#else
+ val = value_being_returned (value_type, stop_registers, struct_return);
+ printf_filtered ("Value returned is $%d = ", record_latest_value (val));
+ value_print (val, gdb_stdout, 0, Val_no_prettyprint);
+ printf_filtered ("\n");
+#endif
+
+ }
}
do_cleanups(old_chain);
}
}
target_files_info ();
- printf_filtered ("Program stopped at %s.\n", local_hex_string(stop_pc));
+ printf_filtered ("Program stopped at %s.\n",
+ local_hex_string((unsigned long) stop_pc));
if (stop_step)
printf_filtered ("It stopped after being stepped.\n");
else if (num != 0)
num = bpstat_num (&bs);
}
}
- else if (stop_signal) {
-#ifdef PRINT_RANDOM_SIGNAL
- PRINT_RANDOM_SIGNAL (stop_signal);
-#else
- printf_filtered ("It stopped with signal %d (%s).\n",
- stop_signal, safe_strsignal (stop_signal));
-#endif
- }
+ else if (stop_signal != TARGET_SIGNAL_0)
+ {
+ printf_filtered ("It stopped with signal %s, %s.\n",
+ target_signal_to_name (stop_signal),
+ target_signal_to_string (stop_signal));
+ }
if (!from_tty)
printf_filtered ("Type \"info stack\" or \"info registers\" for more information.\n");
int from_tty;
{
char *exec_path;
-
+ char *env;
dont_repeat ();
- exec_path = strsave (get_in_environ (inferior_environ, path_var_name));
+ env = get_in_environ (inferior_environ, path_var_name);
+ /* Can be null if path is not set */
+ if (!env)
+ env = "";
+ exec_path = strsave (env);
mod_path (dirname, &exec_path);
set_in_environ (inferior_environ, path_var_name, exec_path);
free (exec_path);
if (from_tty)
path_info ((char *)NULL, from_tty);
}
-\f
-CORE_ADDR
-read_pc ()
-{
- return ADDR_BITS_REMOVE ((CORE_ADDR) read_register (PC_REGNUM));
-}
-void
-write_pc (val)
- CORE_ADDR val;
-{
- write_register (PC_REGNUM, (long) val);
-#ifdef NPC_REGNUM
- write_register (NPC_REGNUM, (long) val+4);
+\f
+#ifdef REGISTER_NAMES
+char *gdb_register_names[] = REGISTER_NAMES;
#endif
- pc_changed = 0;
-}
-
-const char * const reg_names[] = REGISTER_NAMES;
-
/* Print out the machine register regnum. If regnum is -1,
print all registers (fpregs == 1) or all non-float registers
(fpregs == 0).
to provide that format. */
#if !defined (DO_REGISTERS_INFO)
+
#define DO_REGISTERS_INFO(regnum, fp) do_registers_info(regnum, fp)
+
static void
do_registers_info (regnum, fpregs)
int regnum;
int fpregs;
{
register int i;
+ int numregs = ARCH_NUM_REGS;
- for (i = 0; i < NUM_REGS; i++)
+ for (i = 0; i < numregs; i++)
{
char raw_buffer[MAX_REGISTER_RAW_SIZE];
char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
continue;
}
- fputs_filtered (reg_names[i], stdout);
- print_spaces_filtered (15 - strlen (reg_names[i]), stdout);
+ /* If the register name is empty, it is undefined for this
+ processor, so don't display anything. */
+ 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);
- /* Get the data in raw format, then convert also to virtual format. */
+ /* Get the data in raw format. */
if (read_relative_register_raw_bytes (i, raw_buffer))
{
- printf_filtered ("Invalid register contents\n");
+ printf_filtered ("*value not available*\n");
continue;
}
-
- REGISTER_CONVERT_TO_VIRTUAL (i, raw_buffer, virtual_buffer);
+
+ /* Convert raw data to virtual format if necessary. */
+#ifdef REGISTER_CONVERTIBLE
+ if (REGISTER_CONVERTIBLE (i))
+ {
+ REGISTER_CONVERT_TO_VIRTUAL (i, REGISTER_VIRTUAL_TYPE (i),
+ raw_buffer, virtual_buffer);
+ }
+ else
+#endif
+ memcpy (virtual_buffer, raw_buffer,
+ 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
- && ! INVALID_FLOAT (virtual_buffer, REGISTER_VIRTUAL_SIZE (i)))
+ if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT)
{
register int j;
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0,
- stdout, 0, 1, 0, Val_pretty_default);
+#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);
printf_filtered ("\t(raw 0x");
for (j = 0; j < REGISTER_RAW_SIZE (i); j++)
- printf_filtered ("%02x", (unsigned char)raw_buffer[j]);
+ {
+ register int idx = TARGET_BYTE_ORDER == BIG_ENDIAN ? j
+ : REGISTER_RAW_SIZE (i) - 1 - j;
+ printf_filtered ("%02x", (unsigned char)raw_buffer[idx]);
+ }
printf_filtered (")");
}
/* Else if virtual format is too long for printf,
print in hex a byte at a time. */
- else if (REGISTER_VIRTUAL_SIZE (i) > sizeof (long))
+ else if (REGISTER_VIRTUAL_SIZE (i) > (int) sizeof (long))
{
register int j;
printf_filtered ("0x");
/* Else print as integer in hex and in decimal. */
else
{
- val_print (REGISTER_VIRTUAL_TYPE (i), raw_buffer, 0,
- stdout, 'x', 1, 0, Val_pretty_default);
+ 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), raw_buffer, 0,
- stdout, 0, 1, 0, Val_pretty_default);
+ val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
+ gdb_stdout, 0, 1, 0, Val_pretty_default);
}
/* The SPARC wants to print even-numbered float regs as doubles
}
#endif /* no DO_REGISTERS_INFO. */
-static void
+extern int target_map_name_to_register PARAMS ((char *, int));
+
+void
registers_info (addr_exp, fpregs)
char *addr_exp;
int fpregs;
{
- int regnum;
+ int regnum, numregs;
register char *end;
if (!target_has_registers)
error ("The program has no registers now.");
+ if (selected_frame == NULL)
+ error ("No selected frame.");
if (!addr_exp)
{
end = addr_exp;
while (*end != '\0' && *end != ' ' && *end != '\t')
++end;
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- if (!strncmp (addr_exp, reg_names[regnum], end - addr_exp)
- && strlen (reg_names[regnum]) == end - addr_exp)
- goto found;
+ numregs = ARCH_NUM_REGS;
+
+ regnum = target_map_name_to_register (addr_exp, end - addr_exp);
+ if (regnum >= 0)
+ goto found;
+
+ regnum = numregs;
+
if (*addr_exp >= '0' && *addr_exp <= '9')
regnum = atoi (addr_exp); /* Take a number */
- if (regnum >= NUM_REGS) /* Bad name, or bad number */
+ if (regnum >= numregs) /* Bad name, or bad number */
error ("%.*s: invalid register", end - addr_exp, addr_exp);
found:
} while (*addr_exp != '\0');
}
-static void
+void
all_registers_info (addr_exp, from_tty)
char *addr_exp;
int from_tty;
registers_info (addr_exp, 1);
}
-static void
+void
nofp_registers_info (addr_exp, from_tty)
char *addr_exp;
int from_tty;
{
registers_info (addr_exp, 0);
}
+
\f
/*
* TODO:
char *args;
int from_tty;
{
+#ifdef SOLIB_ADD
+ extern int auto_solib_add;
+#endif
+
+ char * exec_file;
+ char * full_exec_path = NULL;
+
dont_repeat (); /* Not for the faint of heart */
if (target_has_execution)
if (query ("A program is being debugged already. Kill it? "))
target_kill ();
else
- error ("Inferior not killed.");
+ error ("Not killed.");
}
target_attach (args, from_tty);
clear_proceed_status ();
stop_soon_quietly = 1;
+ /* No traps are generated when attaching to inferior under Mach 3
+ or GNU hurd. */
+#ifndef ATTACH_NO_WAIT
wait_for_inferior ();
+#endif
+
+ /*
+ * If no exec file is yet known, try to determine it from the
+ * process itself.
+ */
+ exec_file = (char *) get_exec_file (0);
+ if (! exec_file) {
+ exec_file = target_pid_to_exec_file (inferior_pid);
+ if (exec_file) {
+ /* It's possible we don't have a full path, but rather just a
+ filename. Some targets, such as HP-UX, don't provide the
+ full path, sigh.
+
+ Attempt to qualify the filename against the source path.
+ (If that fails, we'll just fall back on the original
+ filename. Not much more we can do...)
+ */
+ if (!source_full_path_of (exec_file, &full_exec_path))
+ full_exec_path = savestring (exec_file, strlen (exec_file));
+
+ exec_file_attach (full_exec_path, from_tty);
+ symbol_file_command (full_exec_path, from_tty);
+ }
+ }
#ifdef SOLIB_ADD
- /* Add shared library symbols from the newly attached process, if any. */
- SOLIB_ADD ((char *)0, from_tty, (struct target_ops *)0);
+ if (auto_solib_add)
+ {
+ /* Add shared library symbols from the newly attached process, if any. */
+ SOLIB_ADD ((char *)0, from_tty, ¤t_target);
+ re_enable_breakpoints_in_shlibs ();
+ }
#endif
+ /* Take any necessary post-attaching actions for this platform.
+ */
+ target_post_attach (inferior_pid);
+
normal_stop ();
}
{
dont_repeat (); /* Not for the faint of heart */
target_detach (args, from_tty);
+#if defined(SOLIB_RESTART)
+ SOLIB_RESTART ();
+#endif
}
/* ARGSUSED */
int from_tty;
{
printf_filtered ("\"unset\" must be followed by the name of an unset subcommand.\n");
- help_list (unsetlist, "unset ", -1, stdout);
+ help_list (unsetlist, "unset ", -1, gdb_stdout);
}
void
add_show_from_set
(add_set_cmd ("args", class_run, var_string_noescape, (char *)&inferior_args,
-"Set arguments to give program being debugged when it is started.\n\
+"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),
&showlist);
add_com ("attach", class_run, attach_command,
"Attach to a process or file outside of GDB.\n\
This command attaches to another target, of the same type as your last\n\
-`target' command (`info files' will show your target stack).\n\
+\"target\" command (\"info files\" will show your target stack).\n\
The command may take as argument a process id or a device file.\n\
For a process id, you must have permission to send the process a signal,\n\
and it must have the same effective uid as the debugger.\n\
-When using \"attach\", you should use the \"file\" command to specify\n\
-the program running in the process, and to load its symbol table.");
+When using \"attach\" with a process id, the debugger finds the\n\
+program running in the process, looking first in the current working\n\
+directory, or (if not found there) using the source file search path\n\
+(see the \"directory\" command). You can also use the \"file\" command\n\
+to specify the program, and to load its symbol table.");
add_com ("detach", class_run, detach_command,
"Detach a process or file previously attached.\n\
were debugging a file, the file is closed and gdb no longer accesses it.");
add_com ("signal", class_run, signal_command,
- "Continue program giving it signal number SIGNUMBER.");
+ "Continue program giving it signal specified by the argument.\n\
+An argument of \"0\" means continue program without giving it a signal.");
add_com ("stepi", class_run, stepi_command,
"Step one instruction exactly.\n\
when they do, the call is treated as one instruction.\n\
Argument N means do this N times (or till program stops for another reason).");
add_com_alias ("n", "next", class_run, 1);
+ if (xdb_commands)
+ add_com_alias("S", "next", class_run, 1);
add_com ("step", class_run, step_command,
"Step program until it reaches a different source line.\n\
Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
for an address to start at.");
+ add_com ("go", class_run, go_command,
+ "Usage: go <location>\n\
+Continue program being debugged, stopping at specified line or \n\
+address.\n\
+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.");
+ if (xdb_commands)
+ add_com_alias("g", "g", class_run, 1);
+
add_com ("continue", class_run, continue_command,
"Continue program being debugged, after signal or breakpoint.\n\
-If proceeding from breakpoint, a number N may be used as an argument:\n\
-then the same breakpoint won't break until the Nth time it is reached.");
+If proceeding from breakpoint, a number N may be used as an argument,\n\
+which means to set the ignore count of that breakpoint to N - 1 (so that\n\
+the breakpoint won't break until the Nth time it is reached).");
add_com_alias ("c", "cont", class_run, 1);
add_com_alias ("fg", "cont", class_run, 1);
To cancel previous arguments and run with no arguments,\n\
use \"set args\" without arguments.");
add_com_alias ("r", "run", class_run, 1);
+ if (xdb_commands)
+ add_com ("R", class_run, run_no_args_command,
+ "Start debugged program with no arguments.");
add_info ("registers", nofp_registers_info,
"List of integer registers and their contents, for selected stack frame.\n\
Register name as argument means describe only that register.");
+ if (xdb_commands)
+ add_com("lr", class_info, nofp_registers_info,
+ "List of integer registers and their contents, for selected stack frame.\n\
+ Register name as argument means describe only that register.");
add_info ("all-registers", all_registers_info,
"List of all registers and their contents, for selected stack frame.\n\
Register name as argument means describe only that register.");