-/* Memory-access and commands for inferior process, for GDB.
- Copyright (C) 1986, 1987, 1988, 1989 Free Software Foundation, Inc.
+/* Memory-access and commands for "inferior" (child) process, for GDB.
+ Copyright 1986, 1987, 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
This file is part of GDB.
-GDB is free software; you can redistribute it and/or modify
+This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-GDB is distributed in the hope that it will be useful,
+This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <stdio.h>
+#include "defs.h"
#include <signal.h>
#include <sys/param.h>
#include <string.h>
-#include "defs.h"
-#include "param.h"
#include "symtab.h"
+#include "gdbtypes.h"
#include "frame.h"
#include "inferior.h"
#include "environ.h"
#include "gdbcore.h"
#include "target.h"
-extern char *sys_siglist[];
+static void
+continue_command PARAMS ((char *, int));
+
+static void
+until_next_command PARAMS ((int));
+
+static void
+until_command PARAMS ((char *, int));
+
+static void
+path_info PARAMS ((char *, int));
+
+static void
+path_command PARAMS ((char *, int));
+
+static void
+unset_command PARAMS ((char *, int));
+
+static void
+float_info PARAMS ((char *, int));
+
+static void
+detach_command PARAMS ((char *, int));
+
+static void
+nofp_registers_info PARAMS ((char *, int));
+
+static void
+all_registers_info PARAMS ((char *, int));
+
+static void
+registers_info PARAMS ((char *, int));
+
+static void
+do_registers_info PARAMS ((int, int));
+
+static void
+unset_environment_command PARAMS ((char *, int));
+
+static void
+set_environment_command PARAMS ((char *, int));
+
+static void
+environment_info PARAMS ((char *, int));
+
+static void
+program_info PARAMS ((char *, int));
+
+static void
+finish_command PARAMS ((char *, int));
+
+static void
+signal_command PARAMS ((char *, int));
+
+static void
+jump_command PARAMS ((char *, int));
+
+static void
+step_1 PARAMS ((int, int, char *));
+
+static void
+nexti_command PARAMS ((char *, int));
-extern void until_break_command (); /* breakpoint.c */
+static void
+stepi_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));
#define ERROR_NO_INFERIOR \
if (!target_has_execution) error ("The program is not being run.");
FRAME_ADDR step_frame_address;
/* 1 means step over all subroutine calls.
+ 0 means don't step over calls (used by stepi).
-1 means step over calls to undebuggable functions. */
int step_over_calls;
struct environ *inferior_environ;
-CORE_ADDR read_pc ();
-void breakpoint_clear_ignore_counts ();
-
\f
+/* ARGSUSED */
void
tty_command (file, from_tty)
char *file;
dont_repeat ();
+ /* Shouldn't this be target_has_execution? FIXME. */
if (inferior_pid)
{
if (
!query ("The program being debugged has been started already.\n\
Start it from the beginning? "))
error ("Program not restarted.");
- target_kill ((char *)0, 0);
+ target_kill ();
}
exec_file = (char *) get_exec_file (0);
- /* The exec file is re-read every time we do an inferior_died, so
+ /* 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 ();
if (args)
{
char *cmd;
- cmd = concat ("set args ", args, "");
+ cmd = concat ("set args ", args, NULL);
make_cleanup (free, cmd);
execute_command (cmd, from_tty);
}
if (from_tty)
{
- printf ("Starting program: %s %s\n",
- exec_file? exec_file: "", inferior_args);
+ puts_filtered("Starting program: ");
+ if (exec_file)
+ puts_filtered(exec_file);
+ puts_filtered(" ");
+ puts_filtered(inferior_args);
+ puts_filtered("\n");
fflush (stdout);
}
environ_vector (inferior_environ));
}
\f
-void
+static void
continue_command (proc_count_exp, from_tty)
char *proc_count_exp;
int from_tty;
/* set_ignore_count prints a message ending with a period.
So print two spaces before "Continuing.". */
if (from_tty)
- printf (" ");
+ printf_filtered (" ");
num = bpstat_num (&bs);
}
}
if (from_tty)
- printf ("Continuing.\n");
+ printf_filtered ("Continuing.\n");
clear_proceed_status ();
}
\f
/* Step until outside of current statement. */
-static void step_1 ();
+/* ARGSUSED */
static void
step_command (count_string, from_tty)
- char * count_string;
+ char *count_string;
int from_tty;
{
step_1 (0, 0, count_string);
/* Likewise, but skip over subroutine calls as if single instructions. */
+/* ARGSUSED */
static void
next_command (count_string, from_tty)
- char * count_string;
+ char *count_string;
int from_tty;
{
step_1 (1, 0, count_string);
/* Likewise, but step only one instruction. */
+/* ARGSUSED */
static void
stepi_command (count_string, from_tty)
- char * count_string;
+ char *count_string;
int from_tty;
{
step_1 (0, 1, count_string);
}
+/* ARGSUSED */
static void
nexti_command (count_string, from_tty)
- char * count_string;
+ char *count_string;
int from_tty;
{
step_1 (1, 1, count_string);
{
register int count = 1;
FRAME fr;
+ struct cleanup *cleanups = 0;
ERROR_NO_INFERIOR;
count = count_string ? parse_and_eval_address (count_string) : 1;
+ if (!single_inst || skip_subroutines) /* leave si command alone */
+ {
+ enable_longjmp_breakpoint();
+ cleanups = make_cleanup(disable_longjmp_breakpoint, 0);
+ }
+
for (; count > 0; count--)
{
clear_proceed_status ();
-
fr = get_current_frame ();
if (!fr) /* Avoid coredump here. Why tho? */
error ("No current frame");
find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end);
if (step_range_end == 0)
{
- int misc;
+ char *name;
+ if (find_pc_partial_function (stop_pc, &name, &step_range_start,
+ &step_range_end) == 0)
+ error ("Cannot find bounds of current function");
- misc = find_pc_misc_function (stop_pc);
target_terminal_ours ();
- printf ("Current function has no line number information.\n");
+ printf_filtered ("\
+Single stepping until exit from function %s, \n\
+which has no line number information.\n", name);
fflush (stdout);
-
- /* No info or after _etext ("Can't happen") */
- if (misc == -1 || misc == misc_function_count - 1)
- error ("No data available on pc function.");
-
- printf ("Single stepping until function exit.\n");
- fflush (stdout);
-
- step_range_start = misc_function_vector[misc].address;
- step_range_end = misc_function_vector[misc + 1].address;
}
}
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;
}
proceed ((CORE_ADDR) -1, -1, 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
}
+
+ if (!single_inst || skip_subroutines)
+ do_cleanups(cleanups);
}
\f
/* Continue program at specified address. */
register CORE_ADDR addr;
struct symtabs_and_lines sals;
struct symtab_and_line sal;
+ struct symbol *fn;
+ struct symbol *sfn;
ERROR_NO_INFERIOR;
}
sal = sals.sals[0];
- free (sals.sals);
+ free ((PTR)sals.sals);
if (sal.symtab == 0 && sal.pc == 0)
error ("No source file has been specified.");
- if (sal.pc == 0)
- sal.pc = find_line_pc (sal.symtab, sal.line);
+ resolve_sal_pc (&sal); /* May error out */
- {
- struct symbol *fn = get_frame_function (get_current_frame ());
- struct symbol *sfn = find_pc_function (sal.pc);
- if (fn != 0 && sfn != fn
- && ! query ("Line %d is not in `%s'. Jump anyway? ",
- sal.line, SYMBOL_NAME (fn)))
- error ("Not confirmed.");
- }
-
- if (sal.pc == 0)
- error ("No line %d in file \"%s\".", sal.line, sal.symtab->filename);
+ /* See if we are trying to jump to another function. */
+ fn = get_frame_function (get_current_frame ());
+ sfn = find_pc_function (sal.pc);
+ if (fn != NULL && sfn != fn)
+ {
+ if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line,
+ SYMBOL_SOURCE_NAME (fn)))
+ {
+ error ("Not confirmed.");
+ /* NOTREACHED */
+ }
+ }
- addr = ADDR_BITS_SET (sal.pc);
+ addr = sal.pc;
if (from_tty)
- printf ("Continuing at 0x%x.\n", addr);
+ printf_filtered ("Continuing at %s.\n",
+ local_hex_string((unsigned long) addr));
clear_proceed_status ();
proceed (addr, 0, 0);
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. */
+ signum = strtosigno (signum_exp);
+
+ if (signum == 0)
+ /* Not found as a name, try it as an expression. */
+ signum = parse_and_eval_address (signum_exp);
if (from_tty)
- printf ("Continuing with signal %d.\n", signum);
+ {
+ char *signame = strsigno (signum);
+ printf_filtered ("Continuing with signal ");
+ if (signame == NULL || signum == 0)
+ printf_filtered ("%d.\n", signum);
+ else
+ /* Do we need to print the number as well as the name? */
+ printf_filtered ("%s (%d).\n", signame, signum);
+ }
clear_proceed_status ();
proceed (stop_pc, signum, 0);
}
+/* Call breakpoint_auto_delete on the current contents of the bpstat
+ pointed to by arg (which is really a bpstat *). */
+void
+breakpoint_auto_delete_contents (arg)
+ 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.
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). */
-/* 4 => return instead of letting the stack dummy run. */
+/* 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;
+
+ sal.pc = addr - CALL_DUMMY_START_OFFSET + CALL_DUMMY_BREAKPOINT_OFFSET;
+ sal.symtab = NULL;
+ sal.line = 0;
+
+ /* 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,
+ NULL,
+ bp_call_dummy);
+ bpt->disposition = delete;
+
+ /* 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. */
+
proceed_to_finish = 1; /* We want stop_registers, please... */
proceed (addr, 0, 0);
+ 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. */
- bcopy (stop_registers, buffer, sizeof stop_registers);
+ memcpy (buffer, stop_registers, sizeof stop_registers);
+ return 0;
}
\f
/* Proceed until we reach a different source line with pc greater than
we set. I'm going to postpone this until after a hopeful rewrite
of wait_for_inferior and the proceed status code. -- randy */
-void
+/* ARGSUSED */
+static void
until_next_command (from_tty)
int from_tty;
{
if (!func)
{
- int misc_func = find_pc_misc_function (pc);
+ struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc);
- if (misc_func != -1)
+ if (msymbol == NULL)
error ("Execution is not within a known function.");
- step_range_start = misc_function_vector[misc_func].address;
+ step_range_start = SYMBOL_VALUE_ADDRESS (msymbol);
step_range_end = pc;
}
else
proceed ((CORE_ADDR) -1, -1, 1);
}
-void
+static void
until_command (arg, from_tty)
char *arg;
int from_tty;
register FRAME frame;
struct frame_info *fi;
register struct symbol *function;
+ struct breakpoint *breakpoint;
+ struct cleanup *old_chain;
if (arg)
error ("The \"finish\" command does not take any arguments.");
if (!target_has_execution)
error ("The program is not running.");
+ if (selected_frame == NULL)
+ error ("No selected frame.");
frame = get_prev_frame (selected_frame);
if (frame == 0)
fi = get_frame_info (frame);
sal = find_pc_line (fi->pc, 0);
sal.pc = fi->pc;
- set_momentary_breakpoint (sal, frame);
+
+ breakpoint = set_momentary_breakpoint (sal, frame, bp_finish);
+
+ old_chain = make_cleanup(delete_breakpoint, breakpoint);
/* Find the function we will return from. */
fi = get_frame_info (selected_frame);
function = find_pc_function (fi->pc);
+ /* Print info on the selected frame, including level number
+ but not source. */
if (from_tty)
{
- printf ("Run till exit from ");
- print_selected_frame ();
+ printf_filtered ("Run till exit from ");
+ print_stack_frame (selected_frame, selected_frame_level, 0);
}
proceed_to_finish = 1; /* We want stop_registers, please... */
proceed ((CORE_ADDR) -1, -1, 0);
- if (bpstat_momentary_breakpoint (stop_bpstat) && function != 0)
+ /* Did we stop at our breakpoint? */
+ if (bpstat_find_breakpoint(stop_bpstat, breakpoint) != NULL
+ && function != 0)
{
struct type *value_type;
register value val;
funcaddr = BLOCK_START (SYMBOL_BLOCK_VALUE (function));
val = value_being_returned (value_type, stop_registers,
- using_struct_return (value_of_variable (function),
+ using_struct_return (value_of_variable (function, NULL),
funcaddr,
value_type,
BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function))));
- printf ("Value returned is $%d = ", record_latest_value (val));
+ printf_filtered ("Value returned is $%d = ", record_latest_value (val));
value_print (val, stdout, 0, Val_no_prettyprint);
- putchar ('\n');
+ printf_filtered ("\n");
}
+ do_cleanups(old_chain);
}
\f
+/* ARGSUSED */
static void
program_info (args, from_tty)
char *args;
if (!target_has_execution)
{
- printf ("The program being debugged is not being run.\n");
+ printf_filtered ("The program being debugged is not being run.\n");
return;
}
target_files_info ();
- printf ("Program stopped at 0x%x.\n", stop_pc);
+ printf_filtered ("Program stopped at %s.\n",
+ local_hex_string((unsigned long) stop_pc));
if (stop_step)
- printf ("It stopped after being stepped.\n");
+ printf_filtered ("It stopped after being stepped.\n");
else if (num != 0)
{
/* There may be several breakpoints in the same place, so this
while (num != 0)
{
if (num < 0)
- printf ("It stopped at a breakpoint that has since been deleted.\n");
+ printf_filtered ("It stopped at a breakpoint that has since been deleted.\n");
else
- printf ("It stopped at breakpoint %d.\n", num);
+ printf_filtered ("It stopped at breakpoint %d.\n", num);
num = bpstat_num (&bs);
}
}
- else if (stop_signal) {
+ else if (stop_signal)
+ {
#ifdef PRINT_RANDOM_SIGNAL
- PRINT_RANDOM_SIGNAL (stop_signal);
+ PRINT_RANDOM_SIGNAL (stop_signal);
#else
- printf ("It stopped with signal %d (%s).\n",
- stop_signal,
- (stop_signal > NSIG)? "unknown": sys_siglist[stop_signal]);
+ char *signame = strsigno (stop_signal);
+ printf_filtered ("It stopped with signal ");
+ if (signame == NULL)
+ printf_filtered ("%d", stop_signal);
+ else
+ /* Do we need to print the number as well as the name? */
+ printf_filtered ("%s (%d)", signame, stop_signal);
+ printf_filtered (", %s.\n", safe_strsignal (stop_signal));
#endif
}
if (!from_tty)
- printf ("Type \"info stack\" or \"info registers\" for more information.\n");
+ printf_filtered ("Type \"info stack\" or \"info registers\" for more information.\n");
}
\f
static void
-environment_info (var)
+environment_info (var, from_tty)
char *var;
+ int from_tty;
{
if (var)
{
register char *val = get_in_environ (inferior_environ, var);
if (val)
- printf ("%s = %s\n", var, val);
+ {
+ puts_filtered (var);
+ puts_filtered (" = ");
+ puts_filtered (val);
+ puts_filtered ("\n");
+ }
else
- printf ("Environment variable \"%s\" not defined.\n", var);
+ {
+ puts_filtered ("Environment variable \"");
+ puts_filtered (var);
+ puts_filtered ("\" not defined.\n");
+ }
}
else
{
register char **vector = environ_vector (inferior_environ);
while (*vector)
- printf ("%s\n", *vector++);
+ {
+ puts_filtered (*vector++);
+ puts_filtered ("\n");
+ }
}
}
static void
-set_environment_command (arg)
+set_environment_command (arg, from_tty)
char *arg;
+ int from_tty;
{
register char *p, *val, *var;
int nullset = 0;
if (p != 0 && val != 0)
{
/* We have both a space and an equals. If the space is before the
- equals and the only thing between the two is more space, use
- the equals */
+ equals, walk forward over the spaces til we see a nonspace
+ (possibly the equals). */
if (p > val)
while (*val == ' ')
val++;
- /* Take the smaller of the two. If there was space before the
- "=", they will be the same right now. */
- p = arg + min (p - arg, val - arg);
+ /* Now if the = is after the char following the spaces,
+ take the char following the spaces. */
+ if (p > val)
+ p = val - 1;
}
else if (val != 0 && p == 0)
p = val;
var = savestring (arg, p - arg);
if (nullset)
{
- printf ("Setting environment variable \"%s\" to null value.\n", var);
+ printf_filtered ("Setting environment variable \"%s\" to null value.\n", var);
set_in_environ (inferior_environ, var, "");
}
else
/* Handle the execution path (PATH variable) */
-const static char path_var_name[] = "PATH";
+static const char path_var_name[] = "PATH";
-void
+/* ARGSUSED */
+static void
path_info (args, from_tty)
char *args;
int from_tty;
{
- printf ("Executable and object file path: %s\n",
- get_in_environ (inferior_environ, path_var_name));
+ puts_filtered ("Executable and object file path: ");
+ puts_filtered (get_in_environ (inferior_environ, path_var_name));
+ puts_filtered ("\n");
}
/* Add zero or more directories to the front of the execution path. */
-void
+static void
path_command (dirname, from_tty)
char *dirname;
int from_tty;
dont_repeat ();
exec_path = strsave (get_in_environ (inferior_environ, path_var_name));
- mod_path (dirname, from_tty, &exec_path);
+ mod_path (dirname, &exec_path);
set_in_environ (inferior_environ, path_var_name, exec_path);
free (exec_path);
if (from_tty)
- path_info ();
+ path_info ((char *)NULL, from_tty);
}
\f
+/* This routine is getting awfully cluttered with #if's. It's probably
+ time to turn this into READ_PC and define it in the tm.h file.
+ Ditto for write_pc. */
+
CORE_ADDR
read_pc ()
{
+#ifdef TARGET_READ_PC
+ return TARGET_READ_PC ();
+#else
return ADDR_BITS_REMOVE ((CORE_ADDR) read_register (PC_REGNUM));
+#endif
}
void
write_pc (val)
CORE_ADDR val;
{
+#ifdef TARGET_WRITE_PC
+ TARGET_WRITE_PC (val);
+#else
write_register (PC_REGNUM, (long) val);
#ifdef NPC_REGNUM
- write_register (NPC_REGNUM, (long) val+4);
+ write_register (NPC_REGNUM, (long) val + 4);
+#ifdef NNPC_REGNUM
+ write_register (NNPC_REGNUM, (long) val + 8);
+#endif
+#endif
#endif
- pc_changed = 0;
}
-char *reg_names[] = REGISTER_NAMES;
+/* Cope with strage ways of getting to the stack and frame pointers */
+
+CORE_ADDR
+read_sp ()
+{
+#ifdef TARGET_READ_SP
+ return TARGET_READ_SP ();
+#else
+ return read_register (SP_REGNUM);
+#endif
+}
+
+void
+write_sp (val)
+ CORE_ADDR val;
+{
+#ifdef TARGET_WRITE_SP
+ TARGET_WRITE_SP (val);
+#else
+ write_register (SP_REGNUM, val);
+#endif
+}
+
+
+CORE_ADDR
+read_fp ()
+{
+#ifdef TARGET_READ_FP
+ return TARGET_READ_FP ();
+#else
+ return read_register (FP_REGNUM);
+#endif
+}
+
+void
+write_fp (val)
+ CORE_ADDR val;
+{
+#ifdef TARGET_WRITE_FP
+ TARGET_WRITE_FP (val);
+#else
+ write_register (FP_REGNUM, val);
+#endif
+}
+
+const char * const reg_names[] = REGISTER_NAMES;
/* Print out the machine register regnum. If regnum is -1,
- print all registers.
+ print all registers (fpregs == 1) or all non-float registers
+ (fpregs == 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 SPARC or Pyramid 90x, which both have
+ 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)
+ all the registers, define the macro DO_REGISTERS_INFO(regnum, fp)
to provide that format. */
+
#if !defined (DO_REGISTERS_INFO)
-#define DO_REGISTERS_INFO(regnum) do_registers_info(regnum)
-static void do_registers_info (regnum)
+#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;
- if (regnum == -1)
- printf_filtered (
- "Register Contents (relative to selected stack frame)\n\n");
-
for (i = 0; i < NUM_REGS; i++)
{
char raw_buffer[MAX_REGISTER_RAW_SIZE];
char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
- if (regnum != -1 && i != regnum)
- continue;
+ /* Decide between printing all regs, nonfloat regs, or specific reg. */
+ if (regnum == -1) {
+ if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT && !fpregs)
+ continue;
+ } else {
+ if (i != regnum)
+ continue;
+ }
fputs_filtered (reg_names[i], stdout);
print_spaces_filtered (15 - strlen (reg_names[i]), stdout);
continue;
}
- target_convert_to_virtual (i, raw_buffer, virtual_buffer);
+ REGISTER_CONVERT_TO_VIRTUAL (i, raw_buffer, virtual_buffer);
/* If virtual format is floating, print it that way, and in raw hex. */
if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT
#endif /* no DO_REGISTERS_INFO. */
static void
-registers_info (addr_exp)
+registers_info (addr_exp, fpregs)
char *addr_exp;
+ int fpregs;
{
int regnum;
+ register char *end;
if (!target_has_registers)
error ("The program has no registers now.");
- if (addr_exp)
+ if (!addr_exp)
{
- if (*addr_exp >= '0' && *addr_exp <= '9')
- regnum = atoi (addr_exp);
- else
- {
- register char *p = addr_exp;
- if (p[0] == '$')
- p++;
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- if (!strcmp (p, reg_names[regnum]))
- break;
- if (regnum == NUM_REGS)
- error ("%s: invalid register name.", addr_exp);
- }
+ DO_REGISTERS_INFO(-1, fpregs);
+ return;
}
- else
- regnum = -1;
- DO_REGISTERS_INFO(regnum);
+ do
+ {
+ if (addr_exp[0] == '$')
+ 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;
+ if (*addr_exp >= '0' && *addr_exp <= '9')
+ regnum = atoi (addr_exp); /* Take a number */
+ if (regnum >= NUM_REGS) /* Bad name, or bad number */
+ error ("%.*s: invalid register", end - addr_exp, addr_exp);
+
+found:
+ DO_REGISTERS_INFO(regnum, fpregs);
+
+ addr_exp = end;
+ while (*addr_exp == ' ' || *addr_exp == '\t')
+ ++addr_exp;
+ } while (*addr_exp != '\0');
+}
+
+static void
+all_registers_info (addr_exp, from_tty)
+ char *addr_exp;
+ int from_tty;
+{
+ registers_info (addr_exp, 1);
+}
+
+static void
+nofp_registers_info (addr_exp, from_tty)
+ char *addr_exp;
+ int from_tty;
+{
+ registers_info (addr_exp, 0);
}
\f
/*
*/
/*
- * attach_command --
- * takes a program started up outside of gdb and ``attaches'' to it.
- * This stops it cold in its tracks and allows us to start tracing it.
- * For this to work, we must be able to send the process a
- * signal and we must have the same effective uid as the program.
- */
+ attach_command --
+ takes a program started up outside of gdb and ``attaches'' to it.
+ This stops it cold in its tracks and allows us to start debugging it.
+ and wait for the trace-trap that results from attaching. */
+
void
attach_command (args, from_tty)
char *args;
int from_tty;
{
+ 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 ("Not killed.");
+ }
+
target_attach (args, from_tty);
+
+ /* Set up the "saved terminal modes" of the inferior
+ based on what modes we are starting it with. */
+ target_terminal_init ();
+
+ /* Install inferior's terminal modes. */
+ target_terminal_inferior ();
+
+ /* Set up execution context to know that we should return from
+ wait_for_inferior as soon as the target reports a stop. */
+ init_wait_for_inferior ();
+ clear_proceed_status ();
+ stop_soon_quietly = 1;
+
+ wait_for_inferior ();
+
+#ifdef SOLIB_ADD
+ /* Add shared library symbols from the newly attached process, if any. */
+ SOLIB_ADD ((char *)0, from_tty, (struct target_ops *)0);
+#endif
+
+ normal_stop ();
}
/*
char *args;
int from_tty;
{
+ dont_repeat (); /* Not for the faint of heart */
target_detach (args, from_tty);
}
/* ARGSUSED */
static void
-float_info (addr_exp)
+float_info (addr_exp, from_tty)
char *addr_exp;
+ int from_tty;
{
#ifdef FLOAT_INFO
FLOAT_INFO;
#else
- printf ("No floating point info available for this processor.\n");
+ printf_filtered ("No floating point info available for this processor.\n");
#endif
}
\f
+/* ARGSUSED */
+static void
+unset_command (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ printf_filtered ("\"unset\" must be followed by the name of an unset subcommand.\n");
+ help_list (unsetlist, "unset ", -1, stdout);
+}
+
void
_initialize_infcmd ()
{
environment to be given to the program.", &showlist);
c->completer = noop_completer;
+ add_prefix_cmd ("unset", no_class, unset_command,
+ "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.",
- &deletelist);
+ &unsetlist);
c->completer = noop_completer;
c = add_cmd ("environment", class_run, set_environment_command,
directories, separated by colons. These directories are searched to find\n\
fully linked executable files and separately compiled object files as needed.");
- add_info ("path", path_info,
+ c = add_cmd ("paths", no_class, path_info,
"Current search path for finding object files.\n\
$cwd in the path means the current working directory.\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.");
+fully linked executable files and separately compiled object files as needed.", &showlist);
+ c->completer = noop_completer;
add_com ("attach", class_run, attach_command,
"Attach to a process or file outside of GDB.\n\
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);
"Start debugged program. You may specify arguments to give it.\n\
Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
-With no arguments, uses arguments last specified (with \"run\" or \"set args\".\n\
+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.");
add_com_alias ("r", "run", class_run, 1);
- add_info ("registers", registers_info,
- "List of registers and their contents, for selected stack frame.\n\
+ 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.");
+
+ 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.");
add_info ("program", program_info,