/* Print and select stack frames for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
- 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1986-2005, 2007-2012 Free Software Foundation, Inc.
This file is part of GDB.
#include "cp-support.h"
#include "disasm.h"
#include "inline-frame.h"
+#include "linespec.h"
#include "gdb_assert.h"
#include <ctype.h>
/* The possible choices of "set print frame-arguments", and the value
of this setting. */
-static const char *print_frame_arguments_choices[] =
+static const char *const print_frame_arguments_choices[] =
{"all", "scalars", "none", NULL};
static const char *print_frame_arguments = "scalars";
const char print_entry_values_both[] = "both";
const char print_entry_values_compact[] = "compact";
const char print_entry_values_default[] = "default";
-static const char *print_entry_values_choices[] =
+static const char *const print_entry_values_choices[] =
{
print_entry_values_no,
print_entry_values_only,
enum print_what print_what, int print_args,
struct symtab_and_line sal);
+static void set_last_displayed_sal (int valid,
+ struct program_space *pspace,
+ CORE_ADDR addr,
+ struct symtab *symtab,
+ int line);
+
/* Zero means do things normally; we are interacting directly with the
user. One means print the full filename and linenumber when a
frame is printed, and do so in a format emacs18/emacs19.22 can
cases and in a slightly different syntax. */
int annotation_level = 0;
+
+/* These variables hold the last symtab and line we displayed to the user.
+ * This is where we insert a breakpoint or a skiplist entry by default. */
+static int last_displayed_sal_valid = 0;
+static struct program_space *last_displayed_pspace = 0;
+static CORE_ADDR last_displayed_addr = 0;
+static struct symtab *last_displayed_symtab = 0;
+static int last_displayed_line = 0;
\f
/* Return 1 if we should display the address in addition to the location,
struct ui_out *uiout = current_uiout;
volatile struct gdb_exception except;
struct cleanup *old_chain;
- struct ui_stream *stb;
+ struct ui_file *stb;
- stb = ui_out_stream_new (uiout);
- old_chain = make_cleanup_ui_out_stream_delete (stb);
+ stb = mem_fileopen ();
+ old_chain = make_cleanup_ui_file_delete (stb);
gdb_assert (!arg->val || !arg->error);
gdb_assert (arg->entry_kind == print_entry_values_no
annotate_arg_begin ();
make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
- fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (arg->sym),
+ fprintf_symbol_filtered (stb, SYMBOL_PRINT_NAME (arg->sym),
SYMBOL_LANGUAGE (arg->sym), DMGL_PARAMS | DMGL_ANSI);
if (arg->entry_kind == print_entry_values_compact)
{
/* It is OK to provide invalid MI-like stream as with
PRINT_ENTRY_VALUE_COMPACT we never use MI. */
- fputs_filtered ("=", stb->stream);
+ fputs_filtered ("=", stb);
- fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (arg->sym),
+ fprintf_symbol_filtered (stb, SYMBOL_PRINT_NAME (arg->sym),
SYMBOL_LANGUAGE (arg->sym),
DMGL_PARAMS | DMGL_ANSI);
}
if (arg->entry_kind == print_entry_values_only
|| arg->entry_kind == print_entry_values_compact)
- fputs_filtered ("@entry", stb->stream);
+ fputs_filtered ("@entry", stb);
ui_out_field_stream (uiout, "name", stb);
annotate_arg_name_end ();
ui_out_text (uiout, "=");
/* True in "summary" mode, false otherwise. */
opts.summary = !strcmp (print_frame_arguments, "scalars");
- common_val_print (arg->val, stb->stream, 2, &opts, language);
+ common_val_print (arg->val, stb, 2, &opts, language);
}
}
if (except.message)
- fprintf_filtered (stb->stream, _("<error reading variable: %s>"),
+ fprintf_filtered (stb, _("<error reading variable: %s>"),
except.message);
}
ui_out_field_stream (uiout, "value", stb);
- /* Aleo invoke ui_out_tuple_end. */
+ /* Also invoke ui_out_tuple_end. */
do_cleanups (old_chain);
annotate_arg_end ();
if (!value_optimized_out (val)
&& value_available_contents_eq (val, 0, entryval, 0, len))
{
- entryval = NULL;
- val_equal = 1;
+ /* Initialize it just to avoid a GCC false warning. */
+ struct value *val_deref = NULL, *entryval_deref;
+
+ /* DW_AT_GNU_call_site_value does match with the current
+ value. If it is a reference still try to verify if
+ dereferenced DW_AT_GNU_call_site_data_value does not
+ differ. */
+
+ TRY_CATCH (except, RETURN_MASK_ERROR)
+ {
+ unsigned len_deref;
+
+ val_deref = coerce_ref (val);
+ if (value_lazy (val_deref))
+ value_fetch_lazy (val_deref);
+ len_deref = TYPE_LENGTH (value_type (val_deref));
+
+ entryval_deref = coerce_ref (entryval);
+ if (value_lazy (entryval_deref))
+ value_fetch_lazy (entryval_deref);
+
+ /* If the reference addresses match but dereferenced
+ content does not match print them. */
+ if (val != val_deref
+ && value_available_contents_eq (val_deref, 0,
+ entryval_deref, 0,
+ len_deref))
+ val_equal = 1;
+ }
+
+ /* Value was not a reference; and its content matches. */
+ if (val == val_deref)
+ val_equal = 1;
+ /* If the dereferenced content could not be fetched do not
+ display anything. */
+ else if (except.error == NO_ENTRY_VALUE_ERROR)
+ val_equal = 1;
+ else if (except.message)
+ {
+ entryval_error = alloca (strlen (except.message) + 1);
+ strcpy (entryval_error, except.message);
+ }
+
+ if (val_equal)
+ entryval = NULL;
}
}
/* Number of ints of arguments that we have printed so far. */
int args_printed = 0;
struct cleanup *old_chain, *list_chain;
- struct ui_stream *stb;
+ struct ui_file *stb;
/* True if we should print arguments, false otherwise. */
int print_args = strcmp (print_frame_arguments, "none");
/* True in "summary" mode, false otherwise. */
int summary = !strcmp (print_frame_arguments, "scalars");
- stb = ui_out_stream_new (uiout);
- old_chain = make_cleanup_ui_out_stream_delete (stb);
+ stb = mem_fileopen ();
+ old_chain = make_cleanup_ui_file_delete (stb);
if (func)
{
CORE_ADDR pc;
if (get_frame_pc_if_available (frame, &pc))
- set_default_breakpoint (1, sal.pspace, pc, sal.symtab, sal.line);
+ set_last_displayed_sal (1, sal.pspace, pc, sal.symtab, sal.line);
else
- set_default_breakpoint (0, 0, 0, 0, 0);
+ set_last_displayed_sal (0, 0, 0, 0, 0);
}
annotate_frame_end ();
gdb_flush (gdb_stdout);
}
+/* Remember the last symtab and line we displayed, which we use e.g.
+ * as the place to put a breakpoint when the `break' command is
+ * invoked with no arguments. */
+
+static void
+set_last_displayed_sal (int valid, struct program_space *pspace,
+ CORE_ADDR addr, struct symtab *symtab,
+ int line)
+{
+ last_displayed_sal_valid = valid;
+ last_displayed_pspace = pspace;
+ last_displayed_addr = addr;
+ last_displayed_symtab = symtab;
+ last_displayed_line = line;
+ if (valid && pspace == NULL)
+ {
+ clear_last_displayed_sal ();
+ internal_error (__FILE__, __LINE__,
+ _("Trying to set NULL pspace."));
+ }
+}
+
+/* Forget the last sal we displayed. */
+
+void
+clear_last_displayed_sal (void)
+{
+ last_displayed_sal_valid = 0;
+ last_displayed_pspace = 0;
+ last_displayed_addr = 0;
+ last_displayed_symtab = 0;
+ last_displayed_line = 0;
+}
+
+/* Is our record of the last sal we displayed valid? If not,
+ * the get_last_displayed_* functions will return NULL or 0, as
+ * appropriate. */
+
+int
+last_displayed_sal_is_valid (void)
+{
+ return last_displayed_sal_valid;
+}
+
+/* Get the pspace of the last sal we displayed, if it's valid. */
+
+struct program_space *
+get_last_displayed_pspace (void)
+{
+ if (last_displayed_sal_valid)
+ return last_displayed_pspace;
+ return 0;
+}
+
+/* Get the address of the last sal we displayed, if it's valid. */
+
+CORE_ADDR
+get_last_displayed_addr (void)
+{
+ if (last_displayed_sal_valid)
+ return last_displayed_addr;
+ return 0;
+}
+
+/* Get the symtab of the last sal we displayed, if it's valid. */
+
+struct symtab*
+get_last_displayed_symtab (void)
+{
+ if (last_displayed_sal_valid)
+ return last_displayed_symtab;
+ return 0;
+}
+
+/* Get the line of the last sal we displayed, if it's valid. */
+
+int
+get_last_displayed_line (void)
+{
+ if (last_displayed_sal_valid)
+ return last_displayed_line;
+ return 0;
+}
+
+/* Get the last sal we displayed, if it's valid. */
+
+void
+get_last_displayed_sal (struct symtab_and_line *sal)
+{
+ if (last_displayed_sal_valid)
+ {
+ sal->pspace = last_displayed_pspace;
+ sal->pc = last_displayed_addr;
+ sal->symtab = last_displayed_symtab;
+ sal->line = last_displayed_line;
+ }
+ else
+ {
+ sal->pspace = 0;
+ sal->pc = 0;
+ sal->symtab = 0;
+ sal->line = 0;
+ }
+}
+
+
/* Attempt to obtain the FUNNAME, FUNLANG and optionally FUNCP of the function
corresponding to FRAME. */
void
-find_frame_funname (struct frame_info *frame, char **funname,
+find_frame_funname (struct frame_info *frame, const char **funname,
enum language *funlang, struct symbol **funcp)
{
struct symbol *func;
{
struct gdbarch *gdbarch = get_frame_arch (frame);
struct ui_out *uiout = current_uiout;
- char *funname = NULL;
+ const char *funname = NULL;
enum language funlang = language_unknown;
- struct ui_stream *stb;
+ struct ui_file *stb;
struct cleanup *old_chain, *list_chain;
struct value_print_options opts;
struct symbol *func;
pc_p = get_frame_pc_if_available (frame, &pc);
- stb = ui_out_stream_new (uiout);
- old_chain = make_cleanup_ui_out_stream_delete (stb);
+ stb = mem_fileopen ();
+ old_chain = make_cleanup_ui_file_delete (stb);
find_frame_funname (frame, &funname, &funlang, &func);
ui_out_text (uiout, " in ");
}
annotate_frame_function_name ();
- fprintf_symbol_filtered (stb->stream, funname ? funname : "??",
+ fprintf_symbol_filtered (stb, funname ? funname : "??",
funlang, DMGL_ANSI);
ui_out_field_stream (uiout, "func", stb);
ui_out_wrap_hint (uiout, " ");
struct symtab *s;
struct frame_info *calling_frame_info;
int numregs;
- char *funname = 0;
+ const char *funname = 0;
enum language funlang = language_unknown;
const char *pc_regname;
int selected_frame_p;
enum unwind_stop_reason reason;
reason = get_frame_unwind_stop_reason (trailing);
- if (reason > UNWIND_FIRST_ERROR)
+ if (reason >= UNWIND_FIRST_ERROR)
printf_filtered (_("Backtrace stopped: %s\n"),
frame_stop_reason_string (reason));
}
fprintf_filtered (stream, _("No locals.\n"));
}
-/* Same, but print labels. */
-
-static void
-print_frame_label_vars (struct frame_info *frame, int this_level_only,
- struct ui_file *stream)
-{
-#if 1
- fprintf_filtered (stream, "print_frame_label_vars disabled.\n");
-#else
- struct blockvector *bl;
- struct block *block = get_frame_block (frame, 0);
- struct gdbarch *gdbarch = get_frame_arch (frame);
- int values_printed = 0;
- int index, have_default = 0;
- char *blocks_printed;
- CORE_ADDR pc = get_frame_pc (frame);
-
- if (block == 0)
- {
- fprintf_filtered (stream, "No symbol table info available.\n");
- return;
- }
-
- bl = blockvector_for_pc (BLOCK_END (block) - 4, &index);
- blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char));
- memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char));
-
- while (block != 0)
- {
- CORE_ADDR end = BLOCK_END (block) - 4;
- int last_index;
-
- if (bl != blockvector_for_pc (end, &index))
- error (_("blockvector blotch"));
- if (BLOCKVECTOR_BLOCK (bl, index) != block)
- error (_("blockvector botch"));
- last_index = BLOCKVECTOR_NBLOCKS (bl);
- index += 1;
-
- /* Don't print out blocks that have gone by. */
- while (index < last_index
- && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < pc)
- index++;
-
- while (index < last_index
- && BLOCK_END (BLOCKVECTOR_BLOCK (bl, index)) < end)
- {
- if (blocks_printed[index] == 0)
- {
- if (print_block_frame_labels (gdbarch,
- BLOCKVECTOR_BLOCK (bl, index),
- &have_default, stream))
- values_printed = 1;
- blocks_printed[index] = 1;
- }
- index++;
- }
- if (have_default)
- return;
- if (values_printed && this_level_only)
- return;
-
- /* After handling the function's top-level block, stop. Don't
- continue to its superblock, the block of per-file symbols.
- Also do not continue to the containing function of an inlined
- function. */
- if (BLOCK_FUNCTION (block))
- break;
- block = BLOCK_SUPERBLOCK (block);
- }
-
- if (!values_printed && !this_level_only)
- fprintf_filtered (stream, _("No catches.\n"));
-#endif
-}
-
void
locals_info (char *args, int from_tty)
{
0, gdb_stdout);
}
-static void
-catch_info (char *ignore, int from_tty)
-{
- /* Assume g++ compiled code; old GDB 4.16 behaviour. */
- print_frame_label_vars (get_selected_frame (_("No frame selected.")),
- 0, gdb_stdout);
-}
-
/* Iterate over all the argument variables in block B.
Returns 1 if any argument was walked; 0 otherwise. */
int i;
int level = 1;
struct function_bounds *func_bounds = NULL;
+ struct cleanup *cleanups;
if (arg != NULL)
return;
frame = parse_frame_specification ("0");
- sals = decode_line_spec (arg, 1);
+ sals = decode_line_spec (arg, DECODE_LINE_FUNFIRSTLINE);
+ cleanups = make_cleanup (xfree, sals.sals);
func_bounds = (struct function_bounds *) xmalloc (
sizeof (struct function_bounds) * sals.nelts);
+ make_cleanup (xfree, func_bounds);
for (i = 0; (i < sals.nelts && !found); i++)
{
- if (sals.sals[i].pc == 0
- || find_pc_partial_function (sals.sals[i].pc, NULL,
- &func_bounds[i].low,
- &func_bounds[i].high) == 0)
+ if (sals.sals[i].pspace != current_program_space)
+ func_bounds[i].low = func_bounds[i].high = 0;
+ else if (sals.sals[i].pc == 0
+ || find_pc_partial_function (sals.sals[i].pc, NULL,
+ &func_bounds[i].low,
+ &func_bounds[i].high) == 0)
{
func_bounds[i].low = func_bounds[i].high = 0;
}
}
while (!found && level == 0);
- if (func_bounds)
- xfree (func_bounds);
+ do_cleanups (cleanups);
if (!found)
printf_filtered (_("'%s' not within current stack frame.\n"), arg);
Select the stack frame that contains <func>.\n\
Usage: func <name>\n"));
- add_info ("catch", catch_info,
- _("Exceptions that can be caught in the current stack frame."));
-
add_setshow_enum_cmd ("frame-arguments", class_stack,
print_frame_arguments_choices, &print_frame_arguments,
_("Set printing of non-scalar frame arguments"),
projects / deliverable / binutils-gdb.git / blobdiff