/* Print and select stack frames for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
+ 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software
+ Foundation, Inc.
This file is part of GDB.
#include "gdbcmd.h"
#include "gdbcore.h"
#include "target.h"
+#include "source.h"
#include "breakpoint.h"
#include "demangle.h"
#include "inferior.h"
#include "annotate.h"
-#ifdef UI_OUT
#include "ui-out.h"
-#endif
/* Prototypes for exported functions. */
void _initialize_stack (void);
-/* Prototypes for local functions. */
+void return_command (char *, int);
-static void return_command (char *, int);
+/* Prototypes for local functions. */
static void down_command (char *, int);
static void frame_info (char *, int);
extern int addressprint; /* Print addresses, or stay symbolic only? */
-extern int lines_to_list; /* # of lines "list" command shows by default */
/* The "selected" stack frame is used by default for local and arg access.
May be zero, for no selected frame. */
0 for innermost, 1 for its caller, ...
or -1 for frame specified by address with no defined level. */
-int selected_frame_level;
+/* Level of the selected frame: 0 for innermost, 1 for its caller, ...
+ or -1 for NULL frame. */
+
+int
+frame_relative_level (struct frame_info *fi)
+{
+ if (fi == NULL)
+ return -1;
+ else
+ return fi->level;
+}
/* Zero means do things normally; we are interacting directly with the
user. One means print the full filename and linenumber when a
/* Do this regardless of SOURCE because we don't have any source
to list for this frame. */
if (level >= 0)
- printf_filtered ("#%-2d ", level);
+ {
+ ui_out_text (uiout, "#");
+ ui_out_field_fmt_int (uiout, 2, ui_left, "level", level);
+ }
annotate_function_call ();
printf_filtered ("<function called from gdb>\n");
annotate_frame_end ();
/* Do this regardless of SOURCE because we don't have any source
to list for this frame. */
if (level >= 0)
- printf_filtered ("#%-2d ", level);
+ {
+ ui_out_text (uiout, "#");
+ ui_out_field_fmt_int (uiout, 2, ui_left, "level", level);
+ }
annotate_signal_handler_caller ();
printf_filtered ("<signal handler called>\n");
annotate_frame_end ();
source_print = (source == SRC_LINE || source == SRC_AND_LOC);
+ if (sal.symtab)
+ set_current_source_symtab_and_line (&sal);
+
if (source_print && sal.symtab)
{
+ struct symtab_and_line cursal;
int done = 0;
int mid_statement = (source == SRC_LINE) && (fi->pc != sal.pc);
fi->pc);
if (!done)
{
- if (addressprint && mid_statement)
- {
-#ifdef UI_OUT
- ui_out_field_core_addr (uiout, "addr", fi->pc);
- ui_out_text (uiout, "\t");
-#else
- print_address_numeric (fi->pc, 1, gdb_stdout);
- printf_filtered ("\t");
-#endif
- }
if (print_frame_info_listing_hook)
print_frame_info_listing_hook (sal.symtab, sal.line, sal.line + 1, 0);
else
- print_source_lines (sal.symtab, sal.line, sal.line + 1, 0);
+ {
+ /* We used to do this earlier, but that is clearly
+ wrong. This function is used by many different
+ parts of gdb, including normal_stop in infrun.c,
+ which uses this to print out the current PC
+ when we stepi/nexti into the middle of a source
+ line. Only the command line really wants this
+ behavior. Other UIs probably would like the
+ ability to decide for themselves if it is desired. */
+ if (addressprint && mid_statement)
+ {
+ ui_out_field_core_addr (uiout, "addr", fi->pc);
+ ui_out_text (uiout, "\t");
+ }
+
+ print_source_lines (sal.symtab, sal.line, sal.line + 1, 0);
+ }
}
- current_source_line = max (sal.line - lines_to_list / 2, 1);
+ /* Make sure we have at least a default source file */
+ set_default_source_symtab_and_line ();
+ cursal = get_current_source_symtab_and_line ();
+ cursal.line = max (sal.line - get_lines_to_list () / 2, 1);
+ set_current_source_symtab_and_line (&cursal);
}
if (source != 0)
struct symbol *func;
register char *funname = 0;
enum language funlang = language_unknown;
-#ifdef UI_OUT
struct ui_stream *stb;
struct cleanup *old_chain;
struct cleanup *list_chain;
stb = ui_out_stream_new (uiout);
old_chain = make_cleanup_ui_out_stream_delete (stb);
-#endif /* UI_OUT */
- func = find_pc_function (fi->pc);
+ func = find_pc_function (frame_address_in_block (fi));
if (func)
{
/* In certain pathological cases, the symtabs give the wrong
ever changed many parts of GDB will need to be changed (and we'll
create a find_pc_minimal_function or some such). */
- struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc);
+ struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (frame_address_in_block (fi));
if (msymbol != NULL
&& (SYMBOL_VALUE_ADDRESS (msymbol)
> BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
}
else
{
- struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc);
+ struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (frame_address_in_block (fi));
if (msymbol != NULL)
{
funname = SYMBOL_NAME (msymbol);
annotate_frame_begin (level == -1 ? 0 : level, fi->pc);
-#ifdef UI_OUT
list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
-#endif
if (level >= 0)
{
-#ifdef UI_OUT
ui_out_text (uiout, "#");
- ui_out_field_fmt (uiout, "level", "%-2d", level);
- ui_out_spaces (uiout, 1);
-#else
- printf_filtered ("#%-2d ", level);
-#endif
+ ui_out_field_fmt_int (uiout, 2, ui_left, "level", level);
}
if (addressprint)
if (fi->pc != sal.pc || !sal.symtab || source == LOC_AND_ADDRESS)
{
annotate_frame_address ();
-#ifdef UI_OUT
ui_out_field_core_addr (uiout, "addr", fi->pc);
annotate_frame_address_end ();
ui_out_text (uiout, " in ");
-#else
- print_address_numeric (fi->pc, 1, gdb_stdout);
- annotate_frame_address_end ();
- printf_filtered (" in ");
-#endif
}
annotate_frame_function_name ();
-#ifdef UI_OUT
fprintf_symbol_filtered (stb->stream, funname ? funname : "??", funlang,
DMGL_ANSI);
ui_out_field_stream (uiout, "func", stb);
ui_out_wrap_hint (uiout, " ");
-#else
- fprintf_symbol_filtered (gdb_stdout, funname ? funname : "??", funlang,
- DMGL_ANSI);
- wrap_here (" ");
-#endif
annotate_frame_args ();
-#ifdef UI_OUT
ui_out_text (uiout, " (");
-#else
- fputs_filtered (" (", gdb_stdout);
-#endif
if (args)
{
struct print_args_args args;
-#ifdef UI_OUT
struct cleanup *args_list_chain;
-#endif
args.fi = fi;
args.func = func;
args.stream = gdb_stdout;
-#ifdef UI_OUT
args_list_chain = make_cleanup_ui_out_list_begin_end (uiout, "args");
catch_errors (print_args_stub, &args, "", RETURN_MASK_ALL);
/* FIXME: args must be a list. If one argument is a string it will
have " that will not be properly escaped. */
/* Invoke ui_out_tuple_end. */
do_cleanups (args_list_chain);
-#else
- catch_errors (print_args_stub, &args, "", RETURN_MASK_ALL);
-#endif
QUIT;
}
-#ifdef UI_OUT
ui_out_text (uiout, ")");
-#else
- printf_filtered (")");
-#endif
if (sal.symtab && sal.symtab->filename)
{
annotate_frame_source_begin ();
-#ifdef UI_OUT
ui_out_wrap_hint (uiout, " ");
ui_out_text (uiout, " at ");
annotate_frame_source_file ();
ui_out_text (uiout, ":");
annotate_frame_source_line ();
ui_out_field_int (uiout, "line", sal.line);
-#else
- wrap_here (" ");
- printf_filtered (" at ");
- annotate_frame_source_file ();
- printf_filtered ("%s", sal.symtab->filename);
- annotate_frame_source_file_end ();
- printf_filtered (":");
- annotate_frame_source_line ();
- printf_filtered ("%d", sal.line);
-#endif
annotate_frame_source_end ();
}
if (lib)
{
annotate_frame_where ();
-#ifdef UI_OUT
ui_out_wrap_hint (uiout, " ");
ui_out_text (uiout, " from ");
ui_out_field_string (uiout, "from", lib);
-#else
- wrap_here (" ");
- printf_filtered (" from %s", lib);
-#endif
}
}
#endif /* PC_SOLIB */
-#ifdef UI_OUT
/* do_cleanups will call ui_out_tuple_end() for us. */
do_cleanups (list_chain);
ui_out_text (uiout, "\n");
do_cleanups (old_chain);
-#else
- printf_filtered ("\n");
-#endif
}
\f
really should be used instead of spaces to delimit; using spaces
normally works in an expression). */
#ifdef SETUP_ARBITRARY_FRAME
- error ("No frame %d", args[0]);
+ error ("No frame %s", paddr_d (args[0]));
#endif
/* If (s)he specifies the frame with an address, he deserves what
}
calling_frame_info = get_prev_frame (fi);
- if (!addr_exp && selected_frame_level >= 0)
+ if (!addr_exp && frame_relative_level (selected_frame) >= 0)
{
- printf_filtered ("Stack level %d, frame at ", selected_frame_level);
+ printf_filtered ("Stack level %d, frame at ",
+ frame_relative_level (selected_frame));
print_address_numeric (fi->frame, 1, gdb_stdout);
printf_filtered (":\n");
}
}
}
- FRAME_INIT_SAVED_REGS (fi);
- if (fi->saved_regs != NULL)
- {
- /* The sp is special; what's returned isn't the save address, but
- actually the value of the previous frame's sp. */
- printf_filtered (" Previous frame's sp is ");
- print_address_numeric (fi->saved_regs[SP_REGNUM], 1, gdb_stdout);
- printf_filtered ("\n");
- count = 0;
- numregs = NUM_REGS + NUM_PSEUDO_REGS;
- for (i = 0; i < numregs; i++)
- if (fi->saved_regs[i] && i != SP_REGNUM)
+ if (fi->saved_regs == NULL)
+ FRAME_INIT_SAVED_REGS (fi);
+ /* Print as much information as possible on the location of all the
+ registers. */
+ {
+ enum lval_type lval;
+ int optimized;
+ CORE_ADDR addr;
+ int realnum;
+ int count;
+ int i;
+ int need_nl = 1;
+
+ /* The sp is special; what's displayed isn't the save address, but
+ the value of the previous frame's sp. This is a legacy thing,
+ at one stage the frame cached the previous frame's SP instead
+ of its address, hence it was easiest to just display the cached
+ value. */
+ if (SP_REGNUM >= 0)
+ {
+ /* Find out the location of the saved stack pointer with out
+ actually evaluating it. */
+ frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr,
+ &realnum, NULL);
+ if (!optimized && lval == not_lval)
{
- if (count == 0)
- puts_filtered (" Saved registers:\n ");
- else
- puts_filtered (",");
- wrap_here (" ");
- printf_filtered (" %s at ", REGISTER_NAME (i));
- print_address_numeric (fi->saved_regs[i], 1, gdb_stdout);
- count++;
+ void *value = alloca (MAX_REGISTER_RAW_SIZE);
+ CORE_ADDR sp;
+ frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr,
+ &realnum, value);
+ sp = extract_address (value, REGISTER_RAW_SIZE (SP_REGNUM));
+ printf_filtered (" Previous frame's sp is ");
+ print_address_numeric (sp, 1, gdb_stdout);
+ printf_filtered ("\n");
+ need_nl = 0;
}
- if (count)
- puts_filtered ("\n");
- }
- else
- {
- /* We could get some information about saved registers by
- calling get_saved_register on each register. Which info goes
- with which frame is necessarily lost, however, and I suspect
- that the users don't care whether they get the info. */
+ else if (!optimized && lval == lval_memory)
+ {
+ printf_filtered (" Previous frame's sp at ");
+ print_address_numeric (addr, 1, gdb_stdout);
+ printf_filtered ("\n");
+ need_nl = 0;
+ }
+ else if (!optimized && lval == lval_register)
+ {
+ printf_filtered (" Previous frame's sp in %s\n",
+ REGISTER_NAME (realnum));
+ need_nl = 0;
+ }
+ /* else keep quiet. */
+ }
+
+ count = 0;
+ numregs = NUM_REGS + NUM_PSEUDO_REGS;
+ for (i = 0; i < numregs; i++)
+ if (i != SP_REGNUM)
+ {
+ /* Find out the location of the saved register without
+ fetching the corresponding value. */
+ frame_register_unwind (fi, i, &optimized, &lval, &addr, &realnum,
+ NULL);
+ /* For moment, only display registers that were saved on the
+ stack. */
+ if (!optimized && lval == lval_memory)
+ {
+ if (count == 0)
+ puts_filtered (" Saved registers:\n ");
+ else
+ puts_filtered (",");
+ wrap_here (" ");
+ printf_filtered (" %s at ", REGISTER_NAME (i));
+ print_address_numeric (addr, 1, gdb_stdout);
+ count++;
+ }
+ }
+ if (count || need_nl)
puts_filtered ("\n");
- }
+ }
}
#if 0
fi = get_prev_frame (fi))
{
QUIT;
- ps = find_pc_psymtab (fi->pc);
+ ps = find_pc_psymtab (frame_address_in_block (fi));
if (ps)
PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in */
}
print_frame_local_vars (register struct frame_info *fi, register int num_tabs,
register struct ui_file *stream)
{
- register struct block *block = get_frame_block (fi);
+ register struct block *block = get_frame_block (fi, 0);
register int values_printed = 0;
if (block == 0)
register struct ui_file *stream)
{
register struct blockvector *bl;
- register struct block *block = get_frame_block (fi);
+ register struct block *block = get_frame_block (fi, 0);
register int values_printed = 0;
int index, have_default = 0;
char *blocks_printed;
}
\f
-/* Select frame FI, and note that its stack level is LEVEL.
- LEVEL may be -1 if an actual level number is not known. */
+/* Select frame FI (or NULL - to invalidate the current frame). */
void
-select_frame (struct frame_info *fi, int level)
+select_frame (struct frame_info *fi)
{
register struct symtab *s;
selected_frame = fi;
- selected_frame_level = level;
+ /* NOTE: cagney/2002-05-04: FI can be NULL. This occures when the
+ frame is being invalidated. */
if (selected_frame_level_changed_hook)
- selected_frame_level_changed_hook (level);
+ selected_frame_level_changed_hook (frame_relative_level (fi));
+
+ /* FIXME: kseitz/2002-08-28: It would be nice to call
+ selected_frame_level_changed_event right here, but due to limitations
+ in the current interfaces, we would end up flooding UIs with events
+ because select_frame is used extensively internally.
+
+ Once we have frame-parameterized frame (and frame-related) commands,
+ the event notification can be moved here, since this function will only
+ be called when the users selected frame is being changed. */
/* Ensure that symbols for this frame are read in. Also, determine the
source language of this frame, and switch to it if desired. */
}
\f
-/* Select frame FI, noting that its stack level is LEVEL. Also print
- the stack frame and show the source if this is the tui version. */
-void
-select_and_print_frame (struct frame_info *fi, int level)
+/* Select frame FI. Also print the stack frame and show the source if
+ this is the tui version. */
+static void
+select_and_print_frame (struct frame_info *fi)
{
- select_frame (fi, level);
+ select_frame (fi);
if (fi)
{
- print_stack_frame (fi, level, 1);
+ print_stack_frame (fi, frame_relative_level (fi), 1);
}
}
\f
-
-/* Store the selected frame and its level into *FRAMEP and *LEVELP.
- If there is no selected frame, *FRAMEP is set to NULL. */
-
-void
-record_selected_frame (CORE_ADDR *frameaddrp, int *levelp)
-{
- *frameaddrp = selected_frame ? selected_frame->frame : 0;
- *levelp = selected_frame_level;
-}
-
/* Return the symbol-block in which the selected frame is executing.
- Can return zero under various legitimate circumstances. */
+ Can return zero under various legitimate circumstances.
+
+ If ADDR_IN_BLOCK is non-zero, set *ADDR_IN_BLOCK to the relevant
+ code address within the block returned. We use this to decide
+ which macros are in scope. */
struct block *
-get_selected_block (void)
+get_selected_block (CORE_ADDR *addr_in_block)
{
if (!target_has_stack)
return 0;
if (!selected_frame)
- return get_current_block ();
- return get_frame_block (selected_frame);
+ return get_current_block (addr_in_block);
+ return get_frame_block (selected_frame, addr_in_block);
}
/* Find a frame a certain number of levels away from FRAME.
frame expressions. */
/* ARGSUSED */
-#ifdef UI_OUT
void
select_frame_command_wrapper (char *level_exp, int from_tty)
{
select_frame_command (level_exp, from_tty);
}
-#endif
+
static void
select_frame_command (char *level_exp, int from_tty)
{
- register struct frame_info *frame, *frame1;
- unsigned int level = 0;
+ struct frame_info *frame;
+ int level = frame_relative_level (selected_frame);
if (!target_has_stack)
error ("No stack.");
frame = parse_frame_specification (level_exp);
- /* Try to figure out what level this frame is. But if there is
- no current stack, don't error out -- let the user set one. */
- frame1 = 0;
- if (get_current_frame ())
- {
- for (frame1 = get_prev_frame (0);
- frame1 && frame1 != frame;
- frame1 = get_prev_frame (frame1))
- level++;
- }
-
- if (!frame1)
- level = 0;
-
- select_frame (frame, level);
+ select_frame (frame);
+ if (level != frame_relative_level (selected_frame))
+ selected_frame_level_changed_event (frame_relative_level (selected_frame));
}
/* The "frame" command. With no arg, print selected frame briefly.
frame_command (char *level_exp, int from_tty)
{
select_frame_command (level_exp, from_tty);
- show_and_print_stack_frame (selected_frame, selected_frame_level, 1);
+ show_and_print_stack_frame (selected_frame,
+ frame_relative_level (selected_frame), 1);
}
/* The XDB Compatibility command to print the current frame. */
{
if (target_has_stack == 0 || selected_frame == 0)
error ("No stack.");
- print_only_stack_frame (selected_frame, selected_frame_level, 1);
+ print_only_stack_frame (selected_frame,
+ frame_relative_level (selected_frame), 1);
}
/* Select the frame up one or COUNT stack levels
fi = find_relative_frame (selected_frame, &count1);
if (count1 != 0 && count_exp == 0)
error ("Initial frame selected; you cannot go up.");
- select_frame (fi, selected_frame_level + count - count1);
+ select_frame (fi);
+ selected_frame_level_changed_event (frame_relative_level (selected_frame));
}
static void
up_command (char *count_exp, int from_tty)
{
up_silently_base (count_exp);
- show_and_print_stack_frame (selected_frame, selected_frame_level, 1);
+ show_and_print_stack_frame (selected_frame,
+ frame_relative_level (selected_frame), 1);
}
/* Select the frame down one or COUNT stack levels
error ("Bottom (i.e., innermost) frame selected; you cannot go down.");
}
- select_frame (frame, selected_frame_level + count - count1);
+ select_frame (frame);
+ selected_frame_level_changed_event (frame_relative_level (selected_frame));
}
/* ARGSUSED */
down_command (char *count_exp, int from_tty)
{
down_silently_base (count_exp);
- show_and_print_stack_frame (selected_frame, selected_frame_level, 1);
+ show_and_print_stack_frame (selected_frame,
+ frame_relative_level (selected_frame), 1);
}
\f
-#ifdef UI_OUT
void
-return_command_wrapper (char *retval_exp, int from_tty)
-{
- return_command (retval_exp, from_tty);
-}
-#endif
-static void
return_command (char *retval_exp, int from_tty)
{
struct symbol *thisfun;
if (!found)
printf_filtered ("'%s' not within current stack frame.\n", arg);
else if (fp != selected_frame)
- select_and_print_frame (fp, level);
+ select_and_print_frame (fp);
}
/* Gets the language of the current frame. */
projects / deliverable / binutils-gdb.git / blobdiff