dont_repeat ();
+ /* Shouldn't this be target_has_execution? FIXME. */
if (inferior_pid)
{
if (
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");
+ 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 (msymbol == NULL || SYMBOL_NAME (msymbol + 1) == NULL)
- error ("No data available on pc function.");
-
- printf_filtered ("Single stepping until function exit.\n");
- fflush (stdout);
-
- step_range_start = SYMBOL_VALUE_ADDRESS (msymbol);
- step_range_end = SYMBOL_VALUE_ADDRESS (msymbol + 1);
}
}
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
}
}
}
- addr = ADDR_BITS_SET (sal.pc);
+ addr = sal.pc;
if (from_tty)
- printf_filtered ("Continuing at %s.\n", local_hex_string(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_filtered ("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). */
/* 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. */
memcpy (buffer, stop_registers, sizeof stop_registers);
+ return 0;
}
\f
/* Proceed until we reach a different source line with pc greater than
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))));
}
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) {
+ else if (stop_signal)
+ {
#ifdef PRINT_RANDOM_SIGNAL
- PRINT_RANDOM_SIGNAL (stop_signal);
+ PRINT_RANDOM_SIGNAL (stop_signal);
#else
- printf_filtered ("It stopped with signal %d (%s).\n",
- stop_signal, safe_strsignal (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
}
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
+}
+
+/* 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
- pc_changed = 0;
}
const char * const reg_names[] = REGISTER_NAMES;
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);
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);