/* 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, 2002, 2003, 2004, 2005
- Free Software Foundation, Inc.
+ 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 Free Software Foundation, Inc.
This file is part of GDB.
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 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#include <ctype.h>
#include "defs.h"
-#include "gdb_string.h"
#include "value.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "ui-out.h"
#include "block.h"
#include "stack.h"
-#include "gdb_assert.h"
#include "dictionary.h"
#include "exceptions.h"
#include "reggroups.h"
#include "regcache.h"
+#include "solib.h"
+#include "valprint.h"
+#include "gdbthread.h"
+#include "cp-support.h"
+#include "disasm.h"
+#include "inline-frame.h"
-/* Prototypes for exported functions. */
-
-void args_info (char *, int);
-
-void locals_info (char *, int);
+#include "gdb_assert.h"
+#include <ctype.h>
+#include "gdb_string.h"
void (*deprecated_selected_frame_level_changed_hook) (int);
-void _initialize_stack (void);
-
-/* Prototypes for local functions. */
-
-static void down_command (char *, int);
-
-static void down_silently_base (char *);
-
-static void down_silently_command (char *, int);
-
-static void up_command (char *, int);
+/* The possible choices of "set print frame-arguments, and the value
+ of this setting. */
-static void up_silently_base (char *);
+static const char *print_frame_arguments_choices[] =
+ {"all", "scalars", "none", NULL};
+static const char *print_frame_arguments = "scalars";
-static void up_silently_command (char *, int);
-
-void frame_command (char *, int);
-
-static void current_frame_command (char *, int);
-
-static void print_frame_arg_vars (struct frame_info *, struct ui_file *);
-
-static void catch_info (char *, int);
-
-static void args_plus_locals_info (char *, int);
-
-static void print_frame_label_vars (struct frame_info *, int,
- struct ui_file *);
+/* Prototypes for local functions. */
static void print_frame_local_vars (struct frame_info *, int,
struct ui_file *);
-static int print_block_frame_labels (struct block *, int *,
- struct ui_file *);
-
-static int print_block_frame_locals (struct block *,
- struct frame_info *,
- int,
- struct ui_file *);
-
-static void print_frame (struct frame_info *fi,
- int print_level,
- enum print_what print_what,
- int print_args,
+static void print_frame (struct frame_info *frame, int print_level,
+ enum print_what print_what, int print_args,
struct symtab_and_line sal);
-static void set_current_sal_from_frame (struct frame_info *, int);
-
-static void backtrace_command (char *, int);
-
-static void frame_info (char *, int);
-
-extern int addressprint; /* Print addresses, or stay symbolic only? */
-
/* 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
\f
struct print_stack_frame_args
- {
- struct frame_info *fi;
- int print_level;
- enum print_what print_what;
- int print_args;
- };
-
-/* Show or print the frame arguments.
- Pass the args the way catch_errors wants them. */
+{
+ struct frame_info *frame;
+ int print_level;
+ enum print_what print_what;
+ int print_args;
+};
+
+/* Show or print the frame arguments; stub for catch_errors. */
+
static int
print_stack_frame_stub (void *args)
{
struct print_stack_frame_args *p = args;
- int center = (p->print_what == SRC_LINE
- || p->print_what == SRC_AND_LOC);
+ int center = (p->print_what == SRC_LINE || p->print_what == SRC_AND_LOC);
- print_frame_info (p->fi, p->print_level, p->print_what, p->print_args);
- set_current_sal_from_frame (p->fi, center);
+ print_frame_info (p->frame, p->print_level, p->print_what, p->print_args);
+ set_current_sal_from_frame (p->frame, center);
return 0;
}
-/* Show or print a stack frame FI briefly. The output is format
+/* Return 1 if we should display the address in addition to the location,
+ because we are in the middle of a statement. */
+
+static int
+frame_show_address (struct frame_info *frame,
+ struct symtab_and_line sal)
+{
+ /* If there is a line number, but no PC, then there is no location
+ information associated with this sal. The only way that should
+ happen is for the call sites of inlined functions (SAL comes from
+ find_frame_sal). Otherwise, we would have some PC range if the
+ SAL came from a line table. */
+ if (sal.line != 0 && sal.pc == 0 && sal.end == 0)
+ {
+ if (get_next_frame (frame) == NULL)
+ gdb_assert (inline_skipped_frames (inferior_ptid) > 0);
+ else
+ gdb_assert (get_frame_type (get_next_frame (frame)) == INLINE_FRAME);
+ return 0;
+ }
+
+ return get_frame_pc (frame) != sal.pc;
+}
+
+/* Show or print a stack frame FRAME briefly. The output is format
according to PRINT_LEVEL and PRINT_WHAT printing the frame's
relative level, function name, argument list, and file name and
line number. If the frame's PC is not at the beginning of the
source line, the actual PC is printed at the beginning. */
void
-print_stack_frame (struct frame_info *fi, int print_level,
+print_stack_frame (struct frame_info *frame, int print_level,
enum print_what print_what)
{
struct print_stack_frame_args args;
- args.fi = fi;
+ args.frame = frame;
args.print_level = print_level;
args.print_what = print_what;
+ /* For mi, alway print location and address. */
+ args.print_what = ui_out_is_mi_like_p (uiout) ? LOC_AND_ADDRESS : print_what;
args.print_args = 1;
- catch_errors (print_stack_frame_stub, (char *) &args, "", RETURN_MASK_ALL);
+ catch_errors (print_stack_frame_stub, &args, "", RETURN_MASK_ERROR);
}
struct print_args_args
{
struct symbol *func;
- struct frame_info *fi;
+ struct frame_info *frame;
struct ui_file *stream;
};
-static int print_args_stub (void *);
+static int print_args_stub (void *args);
-/* Print nameless args on STREAM.
- FI is the frameinfo for this frame, START is the offset
- of the first nameless arg, and NUM is the number of nameless args to
- print. FIRST is nonzero if this is the first argument (not just
- the first nameless arg). */
+/* Print nameless arguments of frame FRAME on STREAM, where START is
+ the offset of the first nameless argument, and NUM is the number of
+ nameless arguments to print. FIRST is nonzero if this is the first
+ argument (not just the first nameless argument). */
static void
-print_frame_nameless_args (struct frame_info *fi, long start, int num,
+print_frame_nameless_args (struct frame_info *frame, long start, int num,
int first, struct ui_file *stream)
{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int i;
CORE_ADDR argsaddr;
long arg_value;
for (i = 0; i < num; i++)
{
QUIT;
- argsaddr = get_frame_args_address (fi);
+ argsaddr = get_frame_args_address (frame);
if (!argsaddr)
return;
- arg_value = read_memory_integer (argsaddr + start, sizeof (int));
+ arg_value = read_memory_integer (argsaddr + start,
+ sizeof (int), byte_order);
if (!first)
fprintf_filtered (stream, ", ");
fprintf_filtered (stream, "%ld", arg_value);
}
}
-/* Print the arguments of a stack frame, given the function FUNC
- running in that frame (as a symbol), the info on the frame,
- and the number of args according to the stack frame (or -1 if unknown). */
+/* Print the arguments of frame FRAME on STREAM, given the function
+ FUNC running in that frame (as a symbol), where NUM is the number
+ of arguments according to the stack frame (or -1 if the number of
+ arguments is unknown). */
-/* References here and elsewhere to "number of args according to the
- stack frame" appear in all cases to refer to "number of ints of args
- according to the stack frame". At least for VAX, i386, isi. */
+/* Note that currently the "number of arguments according to the
+ stack frame" is only known on VAX where i refers to the "number of
+ ints of arguments according to the stack frame". */
static void
-print_frame_args (struct symbol *func, struct frame_info *fi, int num,
- struct ui_file *stream)
+print_frame_args (struct symbol *func, struct frame_info *frame,
+ int num, struct ui_file *stream)
{
- struct block *b = NULL;
int first = 1;
- struct dict_iterator iter;
- struct symbol *sym;
- struct value *val;
/* Offset of next stack argument beyond the one we have seen that is
- at the highest offset.
- -1 if we haven't come to a stack argument yet. */
+ at the highest offset, or -1 if we haven't come to a stack
+ argument yet. */
long highest_offset = -1;
- int arg_size;
/* 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;
+ /* 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);
if (func)
{
- b = SYMBOL_BLOCK_VALUE (func);
+ struct block *b = SYMBOL_BLOCK_VALUE (func);
+ struct dict_iterator iter;
+ struct symbol *sym;
+ struct value *val;
ALL_BLOCK_SYMBOLS (b, iter, sym)
{
/* Keep track of the highest stack argument offset seen, and
skip over any kinds of symbols we don't care about. */
+ if (!SYMBOL_IS_ARGUMENT (sym))
+ continue;
+
switch (SYMBOL_CLASS (sym))
{
case LOC_ARG:
case LOC_REF_ARG:
{
long current_offset = SYMBOL_VALUE (sym);
- arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym));
+ int arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym));
/* Compute address of next argument by adding the size of
this argument and rounding to an int boundary. */
((current_offset + arg_size + sizeof (int) - 1)
& ~(sizeof (int) - 1));
- /* If this is the highest offset seen yet, set highest_offset. */
+ /* If this is the highest offset seen yet, set
+ highest_offset. */
if (highest_offset == -1
|| (current_offset > highest_offset))
highest_offset = current_offset;
- /* Add the number of ints we're about to print to args_printed. */
+ /* Add the number of ints we're about to print to
+ args_printed. */
args_printed += (arg_size + sizeof (int) - 1) / sizeof (int);
}
- /* We care about types of symbols, but don't need to keep track of
- stack offsets in them. */
- case LOC_REGPARM:
+ /* We care about types of symbols, but don't need to
+ keep track of stack offsets in them. */
+ case LOC_REGISTER:
case LOC_REGPARM_ADDR:
- case LOC_LOCAL_ARG:
- case LOC_BASEREG_ARG:
- case LOC_COMPUTED_ARG:
- break;
-
- /* Other types of symbols we just skip over. */
+ case LOC_COMPUTED:
+ case LOC_OPTIMIZED_OUT:
default:
- continue;
+ break;
}
/* We have to look up the symbol because arguments can have
two entries (one a parameter, one a local) and the one we
want is the local, which lookup_symbol will find for us.
- This includes gcc1 (not gcc2) on the sparc when passing a
+ This includes gcc1 (not gcc2) on SPARC when passing a
small structure and gcc2 when the argument type is float
and it is passed as a double and converted to float by
the prologue (in the latter case the type of the LOC_ARG
symbol is double and the type of the LOC_LOCAL symbol is
float). */
- /* But if the parameter name is null, don't try it.
- Null parameter names occur on the RS/6000, for traceback tables.
- FIXME, should we even print them? */
+ /* But if the parameter name is null, don't try it. Null
+ parameter names occur on the RS/6000, for traceback
+ tables. FIXME, should we even print them? */
- if (*DEPRECATED_SYMBOL_NAME (sym))
+ if (*SYMBOL_LINKAGE_NAME (sym))
{
struct symbol *nsym;
- nsym = lookup_symbol
- (DEPRECATED_SYMBOL_NAME (sym),
- b, VAR_DOMAIN, (int *) NULL, (struct symtab **) NULL);
- if (SYMBOL_CLASS (nsym) == LOC_REGISTER)
+ nsym = lookup_symbol (SYMBOL_LINKAGE_NAME (sym),
+ b, VAR_DOMAIN, NULL);
+ gdb_assert (nsym != NULL);
+ if (SYMBOL_CLASS (nsym) == LOC_REGISTER
+ && !SYMBOL_IS_ARGUMENT (nsym))
{
- /* There is a LOC_ARG/LOC_REGISTER pair. This means that
- it was passed on the stack and loaded into a register,
- or passed in a register and stored in a stack slot.
- GDB 3.x used the LOC_ARG; GDB 4.0-4.11 used the LOC_REGISTER.
+ /* There is a LOC_ARG/LOC_REGISTER pair. This means
+ that it was passed on the stack and loaded into a
+ register, or passed in a register and stored in a
+ stack slot. GDB 3.x used the LOC_ARG; GDB
+ 4.0-4.11 used the LOC_REGISTER.
Reasons for using the LOC_ARG:
- (1) because find_saved_registers may be slow for remote
- debugging,
- (2) because registers are often re-used and stack slots
- rarely (never?) are. Therefore using the stack slot is
- much less likely to print garbage.
+
+ (1) Because find_saved_registers may be slow for
+ remote debugging.
+
+ (2) Because registers are often re-used and stack
+ slots rarely (never?) are. Therefore using
+ the stack slot is much less likely to print
+ garbage.
Reasons why we might want to use the LOC_REGISTER:
- (1) So that the backtrace prints the same value as
- "print foo". I see no compelling reason why this needs
- to be the case; having the backtrace print the value which
- was passed in, and "print foo" print the value as modified
- within the called function, makes perfect sense to me.
-
- Additional note: It might be nice if "info args" displayed
- both values.
- One more note: There is a case with sparc structure passing
- where we need to use the LOC_REGISTER, but this is dealt with
- by creating a single LOC_REGPARM in symbol reading. */
+
+ (1) So that the backtrace prints the same value
+ as "print foo". I see no compelling reason
+ why this needs to be the case; having the
+ backtrace print the value which was passed
+ in, and "print foo" print the value as
+ modified within the called function, makes
+ perfect sense to me.
+
+ Additional note: It might be nice if "info args"
+ displayed both values.
+
+ One more note: There is a case with SPARC
+ structure passing where we need to use the
+ LOC_REGISTER, but this is dealt with by creating
+ a single LOC_REGPARM in symbol reading. */
/* Leave sym (the LOC_ARG) alone. */
;
list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym),
- SYMBOL_LANGUAGE (sym), DMGL_PARAMS | DMGL_ANSI);
+ SYMBOL_LANGUAGE (sym),
+ DMGL_PARAMS | DMGL_ANSI);
ui_out_field_stream (uiout, "name", stb);
annotate_arg_name_end ();
ui_out_text (uiout, "=");
- /* Avoid value_print because it will deref ref parameters. We just
- want to print their addresses. Print ??? for args whose address
- we do not know. We pass 2 as "recurse" to val_print because our
- standard indentation here is 4 spaces, and val_print indents
- 2 for each recurse. */
- val = read_var_value (sym, fi);
-
- annotate_arg_value (val == NULL ? NULL : value_type (val));
+ if (print_args)
+ {
+ /* Avoid value_print because it will deref ref parameters.
+ We just want to print their addresses. Print ??? for
+ args whose address we do not know. We pass 2 as
+ "recurse" to val_print because our standard indentation
+ here is 4 spaces, and val_print indents 2 for each
+ recurse. */
+ val = read_var_value (sym, frame);
+
+ annotate_arg_value (val == NULL ? NULL : value_type (val));
+
+ if (val)
+ {
+ const struct language_defn *language;
+ struct value_print_options opts;
+
+ /* Use the appropriate language to display our symbol,
+ unless the user forced the language to a specific
+ language. */
+ if (language_mode == language_mode_auto)
+ language = language_def (SYMBOL_LANGUAGE (sym));
+ else
+ language = current_language;
+
+ get_raw_print_options (&opts);
+ opts.deref_ref = 0;
+ opts.summary = summary;
+ common_val_print (val, stb->stream, 2, &opts, language);
+ ui_out_field_stream (uiout, "value", stb);
+ }
+ else
+ ui_out_text (uiout, "???");
+ }
+ else
+ ui_out_text (uiout, "...");
- if (val)
- {
- val_print (value_type (val), value_contents (val), 0,
- VALUE_ADDRESS (val),
- stb->stream, 0, 0, 2, Val_no_prettyprint);
- ui_out_field_stream (uiout, "value", stb);
- }
- else
- ui_out_text (uiout, "???");
/* Invoke ui_out_tuple_end. */
do_cleanups (list_chain);
long start;
if (highest_offset == -1)
- start = FRAME_ARGS_SKIP;
+ start = gdbarch_frame_args_skip (get_frame_arch (frame));
else
start = highest_offset;
- print_frame_nameless_args (fi, start, num - args_printed,
+ print_frame_nameless_args (frame, start, num - args_printed,
first, stream);
}
+
do_cleanups (old_chain);
}
-/* Pass the args the way catch_errors wants them. */
+/* Stub for catch_errors. */
static int
print_args_stub (void *args)
{
+ struct print_args_args *p = args;
+ struct gdbarch *gdbarch = get_frame_arch (p->frame);
int numargs;
- struct print_args_args *p = (struct print_args_args *) args;
- if (FRAME_NUM_ARGS_P ())
+ if (gdbarch_frame_num_args_p (gdbarch))
{
- numargs = FRAME_NUM_ARGS (p->fi);
+ numargs = gdbarch_frame_num_args (gdbarch, p->frame);
gdb_assert (numargs >= 0);
}
else
numargs = -1;
- print_frame_args (p->func, p->fi, numargs, p->stream);
+ print_frame_args (p->func, p->frame, numargs, p->stream);
return 0;
}
-/* Set the current source and line to the location of the given
- frame, if possible. When CENTER is true, adjust so the
- relevant line is in the center of the next 'list'. */
+/* Set the current source and line to the location given by frame
+ FRAME, if possible. When CENTER is true, adjust so the relevant
+ line is in the center of the next 'list'. */
-static void
-set_current_sal_from_frame (struct frame_info *fi, int center)
+void
+set_current_sal_from_frame (struct frame_info *frame, int center)
{
struct symtab_and_line sal;
- find_frame_sal (fi, &sal);
+ find_frame_sal (frame, &sal);
if (sal.symtab)
{
if (center)
}
}
-/* Print information about a frame for frame "fi" at level "level".
- Used in "where" output, also used to emit breakpoint or step
- messages.
- LEVEL is the level of the frame, or -1 if it is the
- innermost frame but we don't want to print the level.
- The meaning of the SOURCE argument is:
- SRC_LINE: Print only source line
- LOCATION: Print only location
- LOC_AND_SRC: Print location and source line. */
+/* If ON, GDB will display disassembly of the next source line when
+ execution of the program being debugged stops.
+ If AUTO (which is the default), or there's no line info to determine
+ the source line of the next instruction, display disassembly of next
+ instruction instead. */
+
+static enum auto_boolean disassemble_next_line;
+
+static void
+show_disassemble_next_line (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c,
+ const char *value)
+{
+ fprintf_filtered (file, _("\
+Debugger's willingness to use disassemble-next-line is %s.\n"),
+ value);
+}
+
+/* Show assembly codes; stub for catch_errors. */
+
+struct gdb_disassembly_stub_args
+{
+ struct gdbarch *gdbarch;
+ int how_many;
+ CORE_ADDR low;
+ CORE_ADDR high;
+};
+
+static void
+gdb_disassembly_stub (void *args)
+{
+ struct gdb_disassembly_stub_args *p = args;
+ gdb_disassembly (p->gdbarch, uiout, 0,
+ DISASSEMBLY_RAW_INSN, p->how_many,
+ p->low, p->high);
+}
+
+/* Use TRY_CATCH to catch the exception from the gdb_disassembly
+ because it will be broken by filter sometime. */
+
+static void
+do_gdb_disassembly (struct gdbarch *gdbarch,
+ int how_many, CORE_ADDR low, CORE_ADDR high)
+{
+ volatile struct gdb_exception exception;
+ struct gdb_disassembly_stub_args args;
+
+ args.gdbarch = gdbarch;
+ args.how_many = how_many;
+ args.low = low;
+ args.high = high;
+ TRY_CATCH (exception, RETURN_MASK_ALL)
+ {
+ gdb_disassembly_stub (&args);
+ }
+ /* If an exception was thrown while doing the disassembly, print
+ the error message, to give the user a clue of what happened. */
+ if (exception.reason == RETURN_ERROR)
+ exception_print (gdb_stderr, exception);
+}
+
+/* Print information about frame FRAME. The output is format according
+ to PRINT_LEVEL and PRINT_WHAT and PRINT ARGS. The meaning of
+ PRINT_WHAT is:
+
+ SRC_LINE: Print only source line.
+ LOCATION: Print only location.
+ LOC_AND_SRC: Print location and source line.
+
+ Used in "where" output, and to emit breakpoint or step
+ messages. */
void
-print_frame_info (struct frame_info *fi, int print_level,
+print_frame_info (struct frame_info *frame, int print_level,
enum print_what print_what, int print_args)
{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
struct symtab_and_line sal;
int source_print;
int location_print;
- if (get_frame_type (fi) == DUMMY_FRAME
- || get_frame_type (fi) == SIGTRAMP_FRAME)
+ if (get_frame_type (frame) == DUMMY_FRAME
+ || get_frame_type (frame) == SIGTRAMP_FRAME
+ || get_frame_type (frame) == ARCH_FRAME)
{
struct cleanup *uiout_cleanup
= make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
- annotate_frame_begin (print_level ? frame_relative_level (fi) : 0,
- get_frame_pc (fi));
+ annotate_frame_begin (print_level ? frame_relative_level (frame) : 0,
+ gdbarch, get_frame_pc (frame));
/* Do this regardless of SOURCE because we don't have any source
to list for this frame. */
{
ui_out_text (uiout, "#");
ui_out_field_fmt_int (uiout, 2, ui_left, "level",
- frame_relative_level (fi));
+ frame_relative_level (frame));
}
if (ui_out_is_mi_like_p (uiout))
{
annotate_frame_address ();
- ui_out_field_core_addr (uiout, "addr", get_frame_pc (fi));
+ ui_out_field_core_addr (uiout, "addr",
+ gdbarch, get_frame_pc (frame));
annotate_frame_address_end ();
}
- if (get_frame_type (fi) == DUMMY_FRAME)
+ if (get_frame_type (frame) == DUMMY_FRAME)
{
annotate_function_call ();
ui_out_field_string (uiout, "func", "<function called from gdb>");
}
- else if (get_frame_type (fi) == SIGTRAMP_FRAME)
+ else if (get_frame_type (frame) == SIGTRAMP_FRAME)
{
annotate_signal_handler_caller ();
ui_out_field_string (uiout, "func", "<signal handler called>");
}
+ else if (get_frame_type (frame) == ARCH_FRAME)
+ {
+ ui_out_field_string (uiout, "func", "<cross-architecture call>");
+ }
ui_out_text (uiout, "\n");
annotate_frame_end ();
return;
}
- /* If fi is not the innermost frame, that normally means that fi->pc
- points to *after* the call instruction, and we want to get the
- line containing the call, never the next line. But if the next
- frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the next frame
- was not entered as the result of a call, and we want to get the
- line containing fi->pc. */
- find_frame_sal (fi, &sal);
+ /* If FRAME is not the innermost frame, that normally means that
+ FRAME->pc points to *after* the call instruction, and we want to
+ get the line containing the call, never the next line. But if
+ the next frame is a SIGTRAMP_FRAME or a DUMMY_FRAME, then the
+ next frame was not entered as the result of a call, and we want
+ to get the line containing FRAME->pc. */
+ find_frame_sal (frame, &sal);
location_print = (print_what == LOCATION
|| print_what == LOC_AND_ADDRESS
|| print_what == SRC_AND_LOC);
if (location_print || !sal.symtab)
- print_frame (fi, print_level, print_what, print_args, sal);
+ print_frame (frame, print_level, print_what, print_args, sal);
source_print = (print_what == SRC_LINE || print_what == SRC_AND_LOC);
+ /* If disassemble-next-line is set to auto or on and doesn't have
+ the line debug messages for $pc, output the next instruction. */
+ if ((disassemble_next_line == AUTO_BOOLEAN_AUTO
+ || disassemble_next_line == AUTO_BOOLEAN_TRUE)
+ && source_print && !sal.symtab)
+ do_gdb_disassembly (get_frame_arch (frame), 1,
+ get_frame_pc (frame), get_frame_pc (frame) + 1);
+
if (source_print && sal.symtab)
{
int done = 0;
int mid_statement = ((print_what == SRC_LINE)
- && (get_frame_pc (fi) != sal.pc));
+ && frame_show_address (frame, sal));
if (annotation_level)
done = identify_source_line (sal.symtab, sal.line, mid_statement,
- get_frame_pc (fi));
+ get_frame_pc (frame));
if (!done)
{
if (deprecated_print_frame_info_listing_hook)
sal.line + 1, 0);
else
{
+ struct value_print_options opts;
+ get_user_print_options (&opts);
/* 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,
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)
+ if (opts.addressprint && mid_statement)
{
- ui_out_field_core_addr (uiout, "addr", get_frame_pc (fi));
+ ui_out_field_core_addr (uiout, "addr",
+ gdbarch, get_frame_pc (frame));
ui_out_text (uiout, "\t");
}
print_source_lines (sal.symtab, sal.line, sal.line + 1, 0);
}
}
+
+ /* If disassemble-next-line is set to on and there is line debug
+ messages, output assembly codes for next line. */
+ if (disassemble_next_line == AUTO_BOOLEAN_TRUE)
+ do_gdb_disassembly (get_frame_arch (frame), -1,
+ get_frame_pc (frame), sal.end);
}
if (print_what != LOCATION)
- set_default_breakpoint (1, get_frame_pc (fi), sal.symtab, sal.line);
+ set_default_breakpoint (1, get_frame_pc (frame), sal.symtab, sal.line);
annotate_frame_end ();
gdb_flush (gdb_stdout);
}
-static void
-print_frame (struct frame_info *fi,
- int print_level,
- enum print_what print_what,
- int print_args,
- struct symtab_and_line sal)
+/* Attempt to obtain the FUNNAME and FUNLANG of the function corresponding
+ to FRAME. */
+void
+find_frame_funname (struct frame_info *frame, char **funname,
+ enum language *funlang)
{
struct symbol *func;
- char *funname = 0;
- enum language funlang = language_unknown;
- 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);
+ *funname = NULL;
+ *funlang = language_unknown;
- func = find_pc_function (get_frame_address_in_block (fi));
+ func = get_frame_function (frame);
if (func)
{
/* In certain pathological cases, the symtabs give the wrong
function (when we are in the first function in a file which
is compiled without debugging symbols, the previous function
is compiled with debugging symbols, and the "foo.o" symbol
- that is supposed to tell us where the file with debugging symbols
- ends has been truncated by ar because it is longer than 15
- characters). This also occurs if the user uses asm() to create
- a function but not stabs for it (in a file compiled -g).
+ that is supposed to tell us where the file with debugging
+ symbols ends has been truncated by ar because it is longer
+ than 15 characters). This also occurs if the user uses asm()
+ to create a function but not stabs for it (in a file compiled
+ with -g).
So look in the minimal symbol tables as well, and if it comes
up with a larger address for the function use that instead.
- I don't think this can ever cause any problems; there shouldn't
- be any minimal symbols in the middle of a function; if this is
- ever changed many parts of GDB will need to be changed (and we'll
- create a find_pc_minimal_function or some such). */
+ I don't think this can ever cause any problems; there
+ shouldn't be any minimal symbols in the middle of a function;
+ if this is 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 = NULL;
+
+ /* Don't attempt to do this for inlined functions, which do not
+ have a corresponding minimal symbol. */
+ if (!block_inlined_p (SYMBOL_BLOCK_VALUE (func)))
+ msymbol
+ = lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame));
- struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (get_frame_address_in_block (fi));
if (msymbol != NULL
&& (SYMBOL_VALUE_ADDRESS (msymbol)
> BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
/* We also don't know anything about the function besides
its address and name. */
func = 0;
- funname = DEPRECATED_SYMBOL_NAME (msymbol);
- funlang = SYMBOL_LANGUAGE (msymbol);
+ *funname = SYMBOL_PRINT_NAME (msymbol);
+ *funlang = SYMBOL_LANGUAGE (msymbol);
}
else
{
- /* I'd like to use SYMBOL_PRINT_NAME() here, to display the
- demangled name that we already have stored in the symbol
- table, but we stored a version with DMGL_PARAMS turned
- on, and here we don't want to display parameters. So call
- the demangler again, with DMGL_ANSI only. (Yes, I know
- that printf_symbol_filtered() will again try to demangle
- the name on the fly, but the issue is that if
- cplus_demangle() fails here, it'll fail there too. So we
- want to catch the failure ("demangled==NULL" case below)
- here, while we still have our hands on the function
- symbol.) */
- char *demangled;
- funname = DEPRECATED_SYMBOL_NAME (func);
- funlang = SYMBOL_LANGUAGE (func);
- if (funlang == language_cplus)
+ *funname = SYMBOL_PRINT_NAME (func);
+ *funlang = SYMBOL_LANGUAGE (func);
+ if (*funlang == language_cplus)
{
- demangled = cplus_demangle (funname, DMGL_ANSI);
- if (demangled == NULL)
- /* If the demangler fails, try the demangled name from
- the symbol table. This'll have parameters, but
- that's preferable to diplaying a mangled name. */
- funname = SYMBOL_PRINT_NAME (func);
+ /* It seems appropriate to use SYMBOL_PRINT_NAME() here,
+ to display the demangled name that we already have
+ stored in the symbol table, but we stored a version
+ with DMGL_PARAMS turned on, and here we don't want to
+ display parameters. So remove the parameters. */
+ char *func_only = cp_remove_params (*funname);
+ if (func_only)
+ {
+ *funname = func_only;
+ make_cleanup (xfree, func_only);
+ }
}
}
}
else
{
- struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (get_frame_address_in_block (fi));
+ struct minimal_symbol *msymbol =
+ lookup_minimal_symbol_by_pc (get_frame_address_in_block (frame));
+
if (msymbol != NULL)
{
- funname = DEPRECATED_SYMBOL_NAME (msymbol);
- funlang = SYMBOL_LANGUAGE (msymbol);
+ *funname = SYMBOL_PRINT_NAME (msymbol);
+ *funlang = SYMBOL_LANGUAGE (msymbol);
}
}
+}
- annotate_frame_begin (print_level ? frame_relative_level (fi) : 0,
- get_frame_pc (fi));
+static void
+print_frame (struct frame_info *frame, int print_level,
+ enum print_what print_what, int print_args,
+ struct symtab_and_line sal)
+{
+ struct gdbarch *gdbarch = get_frame_arch (frame);
+ char *funname = NULL;
+ enum language funlang = language_unknown;
+ struct ui_stream *stb;
+ struct cleanup *old_chain, *list_chain;
+ struct value_print_options opts;
+
+ stb = ui_out_stream_new (uiout);
+ old_chain = make_cleanup_ui_out_stream_delete (stb);
+
+ find_frame_funname (frame, &funname, &funlang);
+
+ annotate_frame_begin (print_level ? frame_relative_level (frame) : 0,
+ gdbarch, get_frame_pc (frame));
list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
{
ui_out_text (uiout, "#");
ui_out_field_fmt_int (uiout, 2, ui_left, "level",
- frame_relative_level (fi));
+ frame_relative_level (frame));
}
- if (addressprint)
- if (get_frame_pc (fi) != sal.pc
- || !sal.symtab
+ get_user_print_options (&opts);
+ if (opts.addressprint)
+ if (frame_show_address (frame, sal) || !sal.symtab
|| print_what == LOC_AND_ADDRESS)
{
annotate_frame_address ();
- ui_out_field_core_addr (uiout, "addr", get_frame_pc (fi));
+ ui_out_field_core_addr (uiout, "addr", gdbarch, get_frame_pc (frame));
annotate_frame_address_end ();
ui_out_text (uiout, " in ");
}
annotate_frame_function_name ();
- fprintf_symbol_filtered (stb->stream, funname ? funname : "??", funlang,
- DMGL_ANSI);
+ fprintf_symbol_filtered (stb->stream, funname ? funname : "??",
+ funlang, DMGL_ANSI);
ui_out_field_stream (uiout, "func", stb);
ui_out_wrap_hint (uiout, " ");
annotate_frame_args ();
{
struct print_args_args args;
struct cleanup *args_list_chain;
- args.fi = fi;
- args.func = func;
+ args.frame = frame;
+ args.func = find_pc_function (get_frame_address_in_block (frame));
args.stream = gdb_stdout;
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. */
+ catch_errors (print_args_stub, &args, "", RETURN_MASK_ERROR);
+ /* 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);
QUIT;
ui_out_text (uiout, " at ");
annotate_frame_source_file ();
ui_out_field_string (uiout, "file", sal.symtab->filename);
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ const char *fullname = symtab_to_fullname (sal.symtab);
+ if (fullname != NULL)
+ ui_out_field_string (uiout, "fullname", fullname);
+ }
annotate_frame_source_file_end ();
ui_out_text (uiout, ":");
annotate_frame_source_line ();
annotate_frame_source_end ();
}
-#ifdef PC_SOLIB
if (!funname || (!sal.symtab || !sal.symtab->filename))
{
- char *lib = PC_SOLIB (get_frame_pc (fi));
+#ifdef PC_SOLIB
+ char *lib = PC_SOLIB (get_frame_pc (frame));
+#else
+ char *lib = solib_name_from_address (get_frame_pc (frame));
+#endif
if (lib)
{
annotate_frame_where ();
ui_out_field_string (uiout, "from", lib);
}
}
-#endif /* PC_SOLIB */
/* do_cleanups will call ui_out_tuple_end() for us. */
do_cleanups (list_chain);
do_cleanups (old_chain);
}
\f
-/* Show the frame info. If this is the tui, it will be shown in
- the source display otherwise, nothing is done */
-void
-show_stack_frame (struct frame_info *fi)
-{
-}
-\f
-/* Read a frame specification in whatever the appropriate format is.
- Call error() if the specification is in any way invalid (i.e. this
- function never returns NULL). When SEPECTED_P is non-NULL set it's
- target to indicate that the default selected frame was used. */
+/* Read a frame specification in whatever the appropriate format is
+ from FRAME_EXP. Call error(), printing MESSAGE, if the
+ specification is in any way invalid (so this function never returns
+ NULL). When SEPECTED_P is non-NULL set its target to indicate that
+ the default selected frame was used. */
static struct frame_info *
parse_frame_specification_1 (const char *frame_exp, const char *message,
{
int i;
for (i = 0; i < numargs; i++)
- addrs[i] = value_as_address (args[0]);
+ addrs[i] = value_as_address (args[i]);
}
/* Assume that the single arg[0] is an address, use that to identify
struct frame_id id = frame_id_build_wild (addrs[0]);
struct frame_info *fid;
- /* If SETUP_ARBITRARY_FRAME is defined, then frame
- specifications take at least 2 addresses. It is important to
- detect this case here so that "frame 100" does not give a
- confusing error message like "frame specification requires
- two addresses". This of course does not solve the "frame
- 100" problem for machines on which a frame specification can
- be made with one address. To solve that, we need a new
- syntax for a specifying a frame by address. I think the
- cleanest syntax is $frame(0x45) ($frame(0x23,0x45) for two
- args, etc.), but people might think that is too much typing,
- so I guess *0x23,0x45 would be a possible alternative (commas
- really should be used instead of spaces to delimit; using
- spaces normally works in an expression). */
-#ifdef SETUP_ARBITRARY_FRAME
- error (_("No frame %s"), paddr_d (addrs[0]));
-#endif
/* If (s)he specifies the frame with an address, he deserves
what (s)he gets. Still, give the highest one that matches.
(NOTE: cagney/2004-10-29: Why highest, or outer-most, I don't
{
if (frame_id_eq (id, get_frame_id (fid)))
{
- while (frame_id_eq (id, frame_unwind_id (fid)))
- fid = get_prev_frame (fid);
+ struct frame_info *prev_frame;
+
+ while (1)
+ {
+ prev_frame = get_prev_frame (fid);
+ if (!prev_frame
+ || !frame_id_eq (id, get_frame_id (prev_frame)))
+ break;
+ fid = prev_frame;
+ }
return fid;
}
}
error (_("Too many args in frame specification"));
}
-struct frame_info *
+static struct frame_info *
parse_frame_specification (char *frame_exp)
{
return parse_frame_specification_1 (frame_exp, NULL, NULL);
}
-/* Print verbosely the selected frame or the frame at address ADDR.
- This means absolutely all information in the frame is printed. */
+/* Print verbosely the selected frame or the frame at address
+ ADDR_EXP. Absolutely all information in the frame is printed. */
static void
frame_info (char *addr_exp, int from_tty)
enum language funlang = language_unknown;
const char *pc_regname;
int selected_frame_p;
+ struct gdbarch *gdbarch;
+ struct cleanup *back_to = make_cleanup (null_cleanup, NULL);
fi = parse_frame_specification_1 (addr_exp, "No stack.", &selected_frame_p);
+ gdbarch = get_frame_arch (fi);
/* Name of the value returned by get_frame_pc(). Per comments, "pc"
is not a good name. */
- if (PC_REGNUM >= 0)
- /* OK, this is weird. The PC_REGNUM hardware register's value can
+ if (gdbarch_pc_regnum (gdbarch) >= 0)
+ /* OK, this is weird. The gdbarch_pc_regnum hardware register's value can
easily not match that of the internal value returned by
get_frame_pc(). */
- pc_regname = REGISTER_NAME (PC_REGNUM);
+ pc_regname = gdbarch_register_name (gdbarch, gdbarch_pc_regnum (gdbarch));
else
- /* But then, this is weird to. Even without PC_REGNUM, an
+ /* But then, this is weird to. Even without gdbarch_pc_regnum, an
architectures will often have a hardware register called "pc",
and that register's value, again, can easily not match
get_frame_pc(). */
find_frame_sal (fi, &sal);
func = get_frame_function (fi);
/* FIXME: cagney/2002-11-28: Why bother? Won't sal.symtab contain
- the same value. */
+ the same value? */
s = find_pc_symtab (get_frame_pc (fi));
if (func)
{
- /* I'd like to use SYMBOL_PRINT_NAME() here, to display
- * the demangled name that we already have stored in
- * the symbol table, but we stored a version with
- * DMGL_PARAMS turned on, and here we don't want
- * to display parameters. So call the demangler again,
- * with DMGL_ANSI only. RT
- * (Yes, I know that printf_symbol_filtered() will
- * again try to demangle the name on the fly, but
- * the issue is that if cplus_demangle() fails here,
- * it'll fail there too. So we want to catch the failure
- * ("demangled==NULL" case below) here, while we still
- * have our hands on the function symbol.)
- */
- char *demangled;
- funname = DEPRECATED_SYMBOL_NAME (func);
+ funname = SYMBOL_PRINT_NAME (func);
funlang = SYMBOL_LANGUAGE (func);
if (funlang == language_cplus)
{
- demangled = cplus_demangle (funname, DMGL_ANSI);
- /* If the demangler fails, try the demangled name
- * from the symbol table. This'll have parameters,
- * but that's preferable to diplaying a mangled name.
- */
- if (demangled == NULL)
- funname = SYMBOL_PRINT_NAME (func);
+ /* It seems appropriate to use SYMBOL_PRINT_NAME() here,
+ to display the demangled name that we already have
+ stored in the symbol table, but we stored a version
+ with DMGL_PARAMS turned on, and here we don't want to
+ display parameters. So remove the parameters. */
+ char *func_only = cp_remove_params (funname);
+ if (func_only)
+ {
+ funname = func_only;
+ make_cleanup (xfree, func_only);
+ }
}
}
else
{
- struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi));
+ struct minimal_symbol *msymbol;
+
+ msymbol = lookup_minimal_symbol_by_pc (get_frame_pc (fi));
if (msymbol != NULL)
{
- funname = DEPRECATED_SYMBOL_NAME (msymbol);
+ funname = SYMBOL_PRINT_NAME (msymbol);
funlang = SYMBOL_LANGUAGE (msymbol);
}
}
{
printf_filtered (_("Stack level %d, frame at "),
frame_relative_level (fi));
- print_address_numeric (get_frame_base (fi), 1, gdb_stdout);
- printf_filtered (":\n");
}
else
{
printf_filtered (_("Stack frame at "));
- print_address_numeric (get_frame_base (fi), 1, gdb_stdout);
- printf_filtered (":\n");
}
+ fputs_filtered (paddress (gdbarch, get_frame_base (fi)), gdb_stdout);
+ printf_filtered (":\n");
printf_filtered (" %s = ", pc_regname);
- print_address_numeric (get_frame_pc (fi), 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, get_frame_pc (fi)), gdb_stdout);
wrap_here (" ");
if (funname)
puts_filtered ("; ");
wrap_here (" ");
printf_filtered ("saved %s ", pc_regname);
- print_address_numeric (frame_pc_unwind (fi), 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, frame_unwind_caller_pc (fi)), gdb_stdout);
printf_filtered ("\n");
- if (calling_frame_info)
+ if (calling_frame_info == NULL)
+ {
+ enum unwind_stop_reason reason;
+
+ reason = get_frame_unwind_stop_reason (fi);
+ if (reason != UNWIND_NO_REASON)
+ printf_filtered (_(" Outermost frame: %s\n"),
+ frame_stop_reason_string (reason));
+ }
+ else if (get_frame_type (fi) == INLINE_FRAME)
+ printf_filtered (" inlined into frame %d",
+ frame_relative_level (get_prev_frame (fi)));
+ else
{
printf_filtered (" called by frame at ");
- print_address_numeric (get_frame_base (calling_frame_info),
- 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, get_frame_base (calling_frame_info)),
+ gdb_stdout);
}
if (get_next_frame (fi) && calling_frame_info)
puts_filtered (",");
if (get_next_frame (fi))
{
printf_filtered (" caller of frame at ");
- print_address_numeric (get_frame_base (get_next_frame (fi)), 1,
- gdb_stdout);
+ fputs_filtered (paddress (gdbarch, get_frame_base (get_next_frame (fi))),
+ gdb_stdout);
}
if (get_next_frame (fi) || calling_frame_info)
puts_filtered ("\n");
+
if (s)
printf_filtered (" source language %s.\n",
language_str (s->language));
else
{
printf_filtered (" Arglist at ");
- print_address_numeric (arg_list, 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout);
printf_filtered (",");
- if (!FRAME_NUM_ARGS_P ())
+ if (!gdbarch_frame_num_args_p (gdbarch))
{
numargs = -1;
puts_filtered (" args: ");
}
else
{
- numargs = FRAME_NUM_ARGS (fi);
+ numargs = gdbarch_frame_num_args (gdbarch, fi);
gdb_assert (numargs >= 0);
if (numargs == 0)
puts_filtered (" no args.");
else
{
printf_filtered (" Locals at ");
- print_address_numeric (arg_list, 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, arg_list), gdb_stdout);
printf_filtered (",");
}
}
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)
+ if (gdbarch_sp_regnum (gdbarch) >= 0)
{
/* Find out the location of the saved stack pointer with out
actually evaluating it. */
- frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr,
+ frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch),
+ &optimized, &lval, &addr,
&realnum, NULL);
if (!optimized && lval == not_lval)
{
- char value[MAX_REGISTER_SIZE];
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ int sp_size = register_size (gdbarch, gdbarch_sp_regnum (gdbarch));
+ gdb_byte value[MAX_REGISTER_SIZE];
CORE_ADDR sp;
- frame_register_unwind (fi, SP_REGNUM, &optimized, &lval, &addr,
+ frame_register_unwind (fi, gdbarch_sp_regnum (gdbarch),
+ &optimized, &lval, &addr,
&realnum, value);
/* NOTE: cagney/2003-05-22: This is assuming that the
stack pointer was packed as an unsigned integer. That
may or may not be valid. */
- sp = extract_unsigned_integer (value, register_size (current_gdbarch, SP_REGNUM));
+ sp = extract_unsigned_integer (value, sp_size, byte_order);
printf_filtered (" Previous frame's sp is ");
- print_address_numeric (sp, 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, sp), gdb_stdout);
printf_filtered ("\n");
need_nl = 0;
}
else if (!optimized && lval == lval_memory)
{
printf_filtered (" Previous frame's sp at ");
- print_address_numeric (addr, 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, addr), 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));
+ gdbarch_register_name (gdbarch, realnum));
need_nl = 0;
}
/* else keep quiet. */
}
count = 0;
- numregs = NUM_REGS + NUM_PSEUDO_REGS;
+ numregs = gdbarch_num_regs (gdbarch)
+ + gdbarch_num_pseudo_regs (gdbarch);
for (i = 0; i < numregs; i++)
- if (i != SP_REGNUM
- && gdbarch_register_reggroup_p (current_gdbarch, i, all_reggroup))
+ if (i != gdbarch_sp_regnum (gdbarch)
+ && gdbarch_register_reggroup_p (gdbarch, i, all_reggroup))
{
/* Find out the location of the saved register without
fetching the corresponding value. */
else
puts_filtered (",");
wrap_here (" ");
- printf_filtered (" %s at ", REGISTER_NAME (i));
- print_address_numeric (addr, 1, gdb_stdout);
+ printf_filtered (" %s at ",
+ gdbarch_register_name (gdbarch, i));
+ fputs_filtered (paddress (gdbarch, addr), gdb_stdout);
count++;
}
}
if (count || need_nl)
puts_filtered ("\n");
}
+
+ do_cleanups (back_to);
}
-/* Print briefly all stack frames or just the innermost COUNT frames. */
+/* Print briefly all stack frames or just the innermost COUNT_EXP
+ frames. */
-static void backtrace_command_1 (char *count_exp, int show_locals,
- int from_tty);
static void
backtrace_command_1 (char *count_exp, int show_locals, int from_tty)
{
if (!target_has_stack)
error (_("No stack."));
- /* The following code must do two things. First, it must
- set the variable TRAILING to the frame from which we should start
+ /* The following code must do two things. First, it must set the
+ variable TRAILING to the frame from which we should start
printing. Second, it must set the variable count to the number
of frames which we should print, or -1 if all of them. */
trailing = get_current_frame ();
- /* The target can be in a state where there is no valid frames
- (e.g., just connected). */
- if (trailing == NULL)
- error (_("No stack."));
-
trailing_level = 0;
if (count_exp)
{
current = get_prev_frame (current);
}
- /* Will stop when CURRENT reaches the top of the stack. TRAILING
- will be COUNT below it. */
+ /* Will stop when CURRENT reaches the top of the stack.
+ TRAILING will be COUNT below it. */
while (current)
{
QUIT;
{
struct partial_symtab *ps;
- /* Read in symbols for all of the frames. Need to do this in
- a separate pass so that "Reading in symbols for xxx" messages
- don't screw up the appearance of the backtrace. Also
- if people have strong opinions against reading symbols for
+ /* Read in symbols for all of the frames. Need to do this in a
+ separate pass so that "Reading in symbols for xxx" messages
+ don't screw up the appearance of the backtrace. Also if
+ people have strong opinions against reading symbols for
backtrace this may have to be an option. */
i = count;
- for (fi = trailing;
- fi != NULL && i--;
- fi = get_prev_frame (fi))
+ for (fi = trailing; fi != NULL && i--; fi = get_prev_frame (fi))
{
QUIT;
ps = find_pc_psymtab (get_frame_address_in_block (fi));
if (ps)
- PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in */
+ PSYMTAB_TO_SYMTAB (ps); /* Force syms to come in. */
}
}
- for (i = 0, fi = trailing;
- fi && count--;
- i++, fi = get_prev_frame (fi))
+ for (i = 0, fi = trailing; fi && count--; i++, fi = get_prev_frame (fi))
{
QUIT;
print_frame_info (fi, 1, LOCATION, 1);
if (show_locals)
print_frame_local_vars (fi, 1, gdb_stdout);
+
+ /* Save the last frame to check for error conditions. */
+ trailing = fi;
}
/* If we've stopped before the end, mention that. */
if (fi && from_tty)
printf_filtered (_("(More stack frames follow...)\n"));
+
+ /* If we've run out of frames, and the reason appears to be an error
+ condition, print it. */
+ if (fi == NULL && trailing != NULL)
+ {
+ enum unwind_stop_reason reason;
+
+ reason = get_frame_unwind_stop_reason (trailing);
+ if (reason > UNWIND_FIRST_ERROR)
+ printf_filtered (_("Backtrace stopped: %s\n"),
+ frame_stop_reason_string (reason));
+ }
}
struct backtrace_command_args
- {
- char *count_exp;
- int show_locals;
- int from_tty;
- };
+{
+ char *count_exp;
+ int show_locals;
+ int from_tty;
+};
+
+/* Stub for catch_errors. */
-/* Stub to call backtrace_command_1 by way of an error catcher. */
static int
backtrace_command_stub (void *data)
{
- struct backtrace_command_args *args = (struct backtrace_command_args *)data;
+ struct backtrace_command_args *args = data;
backtrace_command_1 (args->count_exp, args->show_locals, args->from_tty);
return 0;
}
static void
backtrace_command (char *arg, int from_tty)
{
- struct cleanup *old_chain = (struct cleanup *) NULL;
- char **argv = (char **) NULL;
- int argIndicatingFullTrace = (-1), totArgLen = 0, argc = 0;
- char *argPtr = arg;
+ struct cleanup *old_chain = NULL;
+ int fulltrace_arg = -1, arglen = 0, argc = 0;
struct backtrace_command_args btargs;
- if (arg != (char *) NULL)
+ if (arg)
{
+ char **argv;
int i;
- argv = buildargv (arg);
+ argv = gdb_buildargv (arg);
old_chain = make_cleanup_freeargv (argv);
argc = 0;
- for (i = 0; (argv[i] != (char *) NULL); i++)
+ for (i = 0; argv[i]; i++)
{
unsigned int j;
- for (j = 0; (j < strlen (argv[i])); j++)
+ for (j = 0; j < strlen (argv[i]); j++)
argv[i][j] = tolower (argv[i][j]);
- if (argIndicatingFullTrace < 0 && subset_compare (argv[i], "full"))
- argIndicatingFullTrace = argc;
+ if (fulltrace_arg < 0 && subset_compare (argv[i], "full"))
+ fulltrace_arg = argc;
else
{
+ arglen += strlen (argv[i]);
argc++;
- totArgLen += strlen (argv[i]);
}
}
- totArgLen += argc;
- if (argIndicatingFullTrace >= 0)
+ arglen += argc;
+ if (fulltrace_arg >= 0)
{
- if (totArgLen > 0)
+ if (arglen > 0)
{
- argPtr = (char *) xmalloc (totArgLen + 1);
- if (!argPtr)
- nomem (0);
- else
+ arg = xmalloc (arglen + 1);
+ memset (arg, 0, arglen + 1);
+ for (i = 0; i < (argc + 1); i++)
{
- memset (argPtr, 0, totArgLen + 1);
- for (i = 0; (i < (argc + 1)); i++)
+ if (i != fulltrace_arg)
{
- if (i != argIndicatingFullTrace)
- {
- strcat (argPtr, argv[i]);
- strcat (argPtr, " ");
- }
+ strcat (arg, argv[i]);
+ strcat (arg, " ");
}
}
}
else
- argPtr = (char *) NULL;
+ arg = NULL;
}
}
- btargs.count_exp = argPtr;
- btargs.show_locals = (argIndicatingFullTrace >= 0);
+ btargs.count_exp = arg;
+ btargs.show_locals = (fulltrace_arg >= 0);
btargs.from_tty = from_tty;
- catch_errors (backtrace_command_stub, (char *)&btargs, "", RETURN_MASK_ERROR);
+ catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR);
- if (argIndicatingFullTrace >= 0 && totArgLen > 0)
- xfree (argPtr);
+ if (fulltrace_arg >= 0 && arglen > 0)
+ xfree (arg);
if (old_chain)
do_cleanups (old_chain);
}
-static void backtrace_full_command (char *arg, int from_tty);
static void
backtrace_full_command (char *arg, int from_tty)
{
btargs.count_exp = arg;
btargs.show_locals = 1;
btargs.from_tty = from_tty;
- catch_errors (backtrace_command_stub, (char *)&btargs, "", RETURN_MASK_ERROR);
+ catch_errors (backtrace_command_stub, &btargs, "", RETURN_MASK_ERROR);
}
\f
-/* Print the local variables of a block B active in FRAME.
+/* Print the local variables of a block B active in FRAME on STREAM.
Return 1 if any variables were printed; 0 otherwise. */
static int
-print_block_frame_locals (struct block *b, struct frame_info *fi,
+print_block_frame_locals (struct block *b, struct frame_info *frame,
int num_tabs, struct ui_file *stream)
{
struct dict_iterator iter;
- int j;
struct symbol *sym;
int values_printed = 0;
+ int j;
ALL_BLOCK_SYMBOLS (b, iter, sym)
{
case LOC_LOCAL:
case LOC_REGISTER:
case LOC_STATIC:
- case LOC_BASEREG:
case LOC_COMPUTED:
+ if (SYMBOL_IS_ARGUMENT (sym))
+ break;
values_printed = 1;
- for (j = 0; j < num_tabs; j++)
- fputs_filtered ("\t", stream);
- fputs_filtered (SYMBOL_PRINT_NAME (sym), stream);
- fputs_filtered (" = ", stream);
- print_variable_value (sym, fi, stream);
- fprintf_filtered (stream, "\n");
+ print_variable_and_value (NULL, sym, frame, stream, 4 * num_tabs);
break;
default:
break;
}
}
+
return values_printed;
}
/* Same, but print labels. */
static int
-print_block_frame_labels (struct block *b, int *have_default,
- struct ui_file *stream)
+print_block_frame_labels (struct gdbarch *gdbarch, struct block *b,
+ int *have_default, struct ui_file *stream)
{
struct dict_iterator iter;
struct symbol *sym;
ALL_BLOCK_SYMBOLS (b, iter, sym)
{
- if (strcmp (DEPRECATED_SYMBOL_NAME (sym), "default") == 0)
+ if (strcmp (SYMBOL_LINKAGE_NAME (sym), "default") == 0)
{
if (*have_default)
continue;
if (SYMBOL_CLASS (sym) == LOC_LABEL)
{
struct symtab_and_line sal;
+ struct value_print_options opts;
sal = find_pc_line (SYMBOL_VALUE_ADDRESS (sym), 0);
values_printed = 1;
fputs_filtered (SYMBOL_PRINT_NAME (sym), stream);
- if (addressprint)
+ get_user_print_options (&opts);
+ if (opts.addressprint)
{
fprintf_filtered (stream, " ");
- print_address_numeric (SYMBOL_VALUE_ADDRESS (sym), 1, stream);
+ fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (sym)),
+ stream);
}
fprintf_filtered (stream, " in file %s, line %d\n",
sal.symtab->filename, sal.line);
}
}
+
return values_printed;
}
-/* Print on STREAM all the local variables in frame FRAME,
- including all the blocks active in that frame
- at its current pc.
+/* Print on STREAM all the local variables in frame FRAME, including
+ all the blocks active in that frame at its current PC.
- Returns 1 if the job was done,
- or 0 if nothing was printed because we have no info
- on the function running in FRAME. */
+ Returns 1 if the job was done, or 0 if nothing was printed because
+ we have no info on the function running in FRAME. */
static void
-print_frame_local_vars (struct frame_info *fi, int num_tabs,
+print_frame_local_vars (struct frame_info *frame, int num_tabs,
struct ui_file *stream)
{
- struct block *block = get_frame_block (fi, 0);
+ struct block *block = get_frame_block (frame, 0);
int values_printed = 0;
if (block == 0)
return;
}
- while (block != 0)
+ while (block)
{
- if (print_block_frame_locals (block, fi, num_tabs, stream))
+ if (print_block_frame_locals (block, frame, num_tabs, stream))
values_printed = 1;
- /* After handling the function's top-level block, stop.
- Don't continue to its superblock, the block of
- per-file symbols. */
+ /* 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)
- {
- fprintf_filtered (stream, "No locals.\n");
- }
+ fprintf_filtered (stream, _("No locals.\n"));
}
/* Same, but print labels. */
static void
-print_frame_label_vars (struct frame_info *fi, int this_level_only,
+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 (fi, 0);
+ 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 (fi);
+ CORE_ADDR pc = get_frame_pc (frame);
if (block == 0)
{
}
bl = blockvector_for_pc (BLOCK_END (block) - 4, &index);
- blocks_printed = (char *) alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char));
+ blocks_printed = alloca (BLOCKVECTOR_NBLOCKS (bl) * sizeof (char));
memset (blocks_printed, 0, BLOCKVECTOR_NBLOCKS (bl) * sizeof (char));
while (block != 0)
{
if (blocks_printed[index] == 0)
{
- if (print_block_frame_labels (BLOCKVECTOR_BLOCK (bl, index), &have_default, stream))
+ if (print_block_frame_labels (gdbarch,
+ BLOCKVECTOR_BLOCK (bl, index),
+ &have_default, stream))
values_printed = 1;
blocks_printed[index] = 1;
}
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. */
+ /* 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");
- }
+ fprintf_filtered (stream, _("No catches.\n"));
+#endif
}
void
locals_info (char *args, int from_tty)
{
- print_frame_local_vars (get_selected_frame ("No frame selected."),
+ print_frame_local_vars (get_selected_frame (_("No frame selected.")),
0, gdb_stdout);
}
{
struct symtab_and_line *sal;
- /* Check for target support for exception handling */
- sal = target_enable_exception_callback (EX_EVENT_CATCH, 1);
- if (sal)
- {
- /* Currently not handling this */
- /* Ideally, here we should interact with the C++ runtime
- system to find the list of active handlers, etc. */
- fprintf_filtered (gdb_stdout, "Info catch not supported with this target/compiler combination.\n");
- }
- else
- {
- /* Assume g++ compiled code -- old v 4.16 behaviour */
- print_frame_label_vars (get_selected_frame ("No frame selected."),
- 0, gdb_stdout);
- }
+ /* Assume g++ compiled code; old GDB 4.16 behaviour. */
+ print_frame_label_vars (get_selected_frame (_("No frame selected.")),
+ 0, gdb_stdout);
}
static void
-print_frame_arg_vars (struct frame_info *fi,
- struct ui_file *stream)
+print_frame_arg_vars (struct frame_info *frame, struct ui_file *stream)
{
- struct symbol *func = get_frame_function (fi);
+ struct symbol *func = get_frame_function (frame);
struct block *b;
struct dict_iterator iter;
struct symbol *sym, *sym2;
if (func == 0)
{
- fprintf_filtered (stream, "No symbol table info available.\n");
+ fprintf_filtered (stream, _("No symbol table info available.\n"));
return;
}
b = SYMBOL_BLOCK_VALUE (func);
ALL_BLOCK_SYMBOLS (b, iter, sym)
{
- switch (SYMBOL_CLASS (sym))
+ /* Don't worry about things which aren't arguments. */
+ if (SYMBOL_IS_ARGUMENT (sym))
{
- case LOC_ARG:
- case LOC_LOCAL_ARG:
- case LOC_REF_ARG:
- case LOC_REGPARM:
- case LOC_REGPARM_ADDR:
- case LOC_BASEREG_ARG:
- case LOC_COMPUTED_ARG:
values_printed = 1;
- fputs_filtered (SYMBOL_PRINT_NAME (sym), stream);
- fputs_filtered (" = ", stream);
/* We have to look up the symbol because arguments can have
two entries (one a parameter, one a local) and the one we
float). There are also LOC_ARG/LOC_REGISTER pairs which
are not combined in symbol-reading. */
- sym2 = lookup_symbol (DEPRECATED_SYMBOL_NAME (sym),
- b, VAR_DOMAIN, (int *) NULL, (struct symtab **) NULL);
- print_variable_value (sym2, fi, stream);
- fprintf_filtered (stream, "\n");
- break;
-
- default:
- /* Don't worry about things which aren't arguments. */
- break;
+ sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym),
+ b, VAR_DOMAIN, NULL);
+ print_variable_and_value (SYMBOL_PRINT_NAME (sym), sym2,
+ frame, stream, 0);
}
}
+
if (!values_printed)
- {
- fprintf_filtered (stream, "No arguments.\n");
- }
+ fprintf_filtered (stream, _("No arguments.\n"));
}
void
args_info (char *ignore, int from_tty)
{
- print_frame_arg_vars (get_selected_frame ("No frame selected."),
+ print_frame_arg_vars (get_selected_frame (_("No frame selected.")),
gdb_stdout);
}
}
\f
-/* Select frame FI. Also print the stack frame and show the source if
- this is the tui version. */
+/* Select frame FRAME. 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_and_print_frame (struct frame_info *frame)
{
- select_frame (fi);
- if (fi)
- print_stack_frame (fi, 1, SRC_AND_LOC);
+ select_frame (frame);
+ if (frame)
+ print_stack_frame (frame, 1, SRC_AND_LOC);
}
\f
/* Return the symbol-block in which the selected frame is executing.
struct block *
get_selected_block (CORE_ADDR *addr_in_block)
{
- if (!target_has_stack)
+ if (!has_stack_frames ())
return 0;
- /* NOTE: cagney/2002-11-28: Why go to all this effort to not create
- a selected/current frame? Perhaps this function is called,
- indirectly, by WFI in "infrun.c" where avoiding the creation of
- an inner most frame is very important (it slows down single
- step). I suspect, though that this was true in the deep dark
- past but is no longer the case. A mindless look at all the
- callers tends to support this theory. I think we should be able
- to assume that there is always a selcted frame. */
- /* gdb_assert (deprecated_selected_frame != NULL); So, do you feel
- lucky? */
- if (!deprecated_selected_frame)
- {
- CORE_ADDR pc = read_pc ();
- if (addr_in_block != NULL)
- *addr_in_block = pc;
- return block_for_pc (pc);
- }
- return get_frame_block (deprecated_selected_frame, addr_in_block);
+ return get_frame_block (get_selected_frame (NULL), addr_in_block);
}
/* Find a frame a certain number of levels away from FRAME.
how much farther the original request asked to go. */
struct frame_info *
-find_relative_frame (struct frame_info *frame,
- int *level_offset_ptr)
+find_relative_frame (struct frame_info *frame, int *level_offset_ptr)
{
- struct frame_info *prev;
- struct frame_info *frame1;
-
- /* Going up is simple: just do get_prev_frame enough times
- or until initial frame is reached. */
+ /* Going up is simple: just call get_prev_frame enough times or
+ until the initial frame is reached. */
while (*level_offset_ptr > 0)
{
- prev = get_prev_frame (frame);
- if (prev == 0)
+ struct frame_info *prev = get_prev_frame (frame);
+ if (!prev)
break;
(*level_offset_ptr)--;
frame = prev;
}
+
/* Going down is just as simple. */
- if (*level_offset_ptr < 0)
+ while (*level_offset_ptr < 0)
{
- while (*level_offset_ptr < 0)
- {
- frame1 = get_next_frame (frame);
- if (!frame1)
- break;
- frame = frame1;
- (*level_offset_ptr)++;
- }
+ struct frame_info *next = get_next_frame (frame);
+ if (!next)
+ break;
+ (*level_offset_ptr)++;
+ frame = next;
}
+
return frame;
}
-/* The "select_frame" command. With no arg, NOP.
- With arg LEVEL_EXP, select the frame at level LEVEL if it is a
- valid level. Otherwise, treat level_exp as an address expression
- and select it. See parse_frame_specification for more info on proper
- frame expressions. */
+/* The "select_frame" command. With no argument this is a NOP.
+ Select the frame at level LEVEL_EXP if it is a valid level.
+ Otherwise, treat LEVEL_EXP as an address expression and select it.
+
+ See parse_frame_specification for more info on proper frame
+ expressions. */
void
select_frame_command (char *level_exp, int from_tty)
select_frame (parse_frame_specification_1 (level_exp, "No stack.", NULL));
}
-/* The "frame" command. With no arg, print selected frame briefly.
- With arg, behaves like select_frame and then prints the selected
- frame. */
+/* The "frame" command. With no argument, print the selected frame
+ briefly. With an argument, behave like select_frame and then print
+ the selected frame. */
-void
+static void
frame_command (char *level_exp, int from_tty)
{
select_frame_command (level_exp, from_tty);
print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
}
-/* The XDB Compatibility command to print the current frame. */
+/* The XDB Compatibility command to print the current frame. */
static void
current_frame_command (char *level_exp, int from_tty)
{
- print_stack_frame (get_selected_frame ("No stack."), 1, SRC_AND_LOC);
+ print_stack_frame (get_selected_frame (_("No stack.")), 1, SRC_AND_LOC);
}
-/* Select the frame up one or COUNT stack levels
- from the previously selected frame, and print it briefly. */
+/* Select the frame up one or COUNT_EXP stack levels from the
+ previously selected frame, and print it briefly. */
static void
up_silently_base (char *count_exp)
{
- struct frame_info *fi;
- int count = 1, count1;
+ struct frame_info *frame;
+ int count = 1;
+
if (count_exp)
count = parse_and_eval_long (count_exp);
- count1 = count;
- fi = find_relative_frame (get_selected_frame ("No stack."), &count1);
- if (count1 != 0 && count_exp == 0)
+ frame = find_relative_frame (get_selected_frame ("No stack."), &count);
+ if (count != 0 && count_exp == NULL)
error (_("Initial frame selected; you cannot go up."));
- select_frame (fi);
+ select_frame (frame);
}
static void
print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
}
-/* Select the frame down one or COUNT stack levels
- from the previously selected frame, and print it briefly. */
+/* Select the frame down one or COUNT_EXP stack levels from the previously
+ selected frame, and print it briefly. */
static void
down_silently_base (char *count_exp)
{
struct frame_info *frame;
- int count = -1, count1;
+ int count = -1;
if (count_exp)
count = -parse_and_eval_long (count_exp);
- count1 = count;
- frame = find_relative_frame (get_selected_frame ("No stack."), &count1);
- if (count1 != 0 && count_exp == 0)
+ frame = find_relative_frame (get_selected_frame ("No stack."), &count);
+ if (count != 0 && count_exp == NULL)
{
+ /* We only do this if COUNT_EXP is not specified. That way
+ "down" means to really go down (and let me know if that is
+ impossible), but "down 9999" can be used to mean go all the
+ way down without getting an error. */
- /* We only do this if count_exp is not specified. That way "down"
- means to really go down (and let me know if that is
- impossible), but "down 9999" can be used to mean go all the way
- down without getting an error. */
-
- error (_("Bottom (i.e., innermost) frame selected; you cannot go down."));
+ error (_("Bottom (innermost) frame selected; you cannot go down."));
}
select_frame (frame);
print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
}
\f
+
void
return_command (char *retval_exp, int from_tty)
{
+ struct frame_info *thisframe;
+ struct gdbarch *gdbarch;
struct symbol *thisfun;
struct value *return_value = NULL;
const char *query_prefix = "";
- thisfun = get_frame_function (get_selected_frame ("No selected frame."));
+ thisframe = get_selected_frame ("No selected frame.");
+ thisfun = get_frame_function (thisframe);
+ gdbarch = get_frame_arch (thisframe);
+
+ if (get_frame_type (get_current_frame ()) == INLINE_FRAME)
+ error (_("Can not force return from an inlined function."));
/* Compute the return value. If the computation triggers an error,
let it bail. If the return type can't be handled, set
message. */
if (retval_exp)
{
+ struct expression *retval_expr = parse_expression (retval_exp);
+ struct cleanup *old_chain = make_cleanup (xfree, retval_expr);
struct type *return_type = NULL;
/* Compute the return value. Should the computation fail, this
call throws an error. */
- return_value = parse_and_eval (retval_exp);
+ return_value = evaluate_expression (retval_expr);
/* Cast return value to the return type of the function. Should
the cast fail, this call throws an error. */
if (thisfun != NULL)
return_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (thisfun));
if (return_type == NULL)
- return_type = builtin_type_int;
+ {
+ if (retval_expr->elts[0].opcode != UNOP_CAST)
+ error (_("Return value type not available for selected "
+ "stack frame.\n"
+ "Please use an explicit cast of the value to return."));
+ return_type = value_type (return_value);
+ }
+ do_cleanups (old_chain);
CHECK_TYPEDEF (return_type);
return_value = value_cast (return_type, return_value);
return-value's location. However, do still evaluate the
return expression so that, even when the expression result
is discarded, side effects such as "return i++" still
- occure. */
+ occur. */
return_value = NULL;
- /* FIXME: cagney/2004-01-17: If the architecture implements both
- return_value and extract_returned_value_address, should allow
- "return" to work - don't set return_value to NULL. */
- else if (!gdbarch_return_value_p (current_gdbarch)
- && (TYPE_CODE (return_type) == TYPE_CODE_STRUCT
- || TYPE_CODE (return_type) == TYPE_CODE_UNION))
- {
- /* NOTE: cagney/2003-10-20: Compatibility hack for legacy
- code. Old architectures don't expect STORE_RETURN_VALUE
- to be called with with a small struct that needs to be
- stored in registers. Don't start doing it now. */
- query_prefix = "\
-A structure or union return type is not supported by this architecture.\n\
-If you continue, the return value that you specified will be ignored.\n";
- return_value = NULL;
- }
- else if (using_struct_return (return_type, 0))
+ else if (thisfun != NULL
+ && using_struct_return (gdbarch,
+ SYMBOL_TYPE (thisfun), return_type))
{
query_prefix = "\
The location at which to store the function's return value is unknown.\n\
error (_("Not confirmed"));
}
- /* NOTE: cagney/2003-01-18: Is this silly? Rather than pop each
- frame in turn, should this code just go straight to the relevant
- frame and pop that? */
-
- /* First discard all frames inner-to the selected frame (making the
- selected frame current). */
- {
- struct frame_id selected_id = get_frame_id (get_selected_frame (NULL));
- while (!frame_id_eq (selected_id, get_frame_id (get_current_frame ())))
- {
- if (frame_id_inner (selected_id, get_frame_id (get_current_frame ())))
- /* Caught in the safety net, oops! We've gone way past the
- selected frame. */
- error (_("Problem while popping stack frames (corrupt stack?)"));
- frame_pop (get_current_frame ());
- }
- }
+ /* Discard the selected frame and all frames inner-to it. */
+ frame_pop (get_selected_frame (NULL));
- /* Second discard the selected frame (which is now also the current
- frame). */
- frame_pop (get_current_frame ());
-
- /* Store RETURN_VAUE in the just-returned register set. */
+ /* Store RETURN_VALUE in the just-returned register set. */
if (return_value != NULL)
{
struct type *return_type = value_type (return_value);
- gdb_assert (gdbarch_return_value (current_gdbarch, return_type,
- NULL, NULL, NULL)
+ struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ());
+ struct type *func_type = thisfun == NULL ? NULL : SYMBOL_TYPE (thisfun);
+
+ gdb_assert (gdbarch_return_value (gdbarch, func_type, return_type, NULL,
+ NULL, NULL)
== RETURN_VALUE_REGISTER_CONVENTION);
- gdbarch_return_value (current_gdbarch, return_type,
- current_regcache, NULL /*read*/,
+ gdbarch_return_value (gdbarch, func_type, return_type,
+ get_current_regcache (), NULL /*read*/,
value_contents (return_value) /*write*/);
}
select_frame_command ("0", 0);
}
-/* Sets the scope to input function name, provided that the
- function is within the current stack frame */
+/* Sets the scope to input function name, provided that the function
+ is within the current stack frame */
struct function_bounds
{
CORE_ADDR low, high;
};
-static void func_command (char *arg, int from_tty);
static void
func_command (char *arg, int from_tty)
{
- struct frame_info *fp;
+ struct frame_info *frame;
int found = 0;
struct symtabs_and_lines sals;
int i;
int level = 1;
- struct function_bounds *func_bounds = (struct function_bounds *) NULL;
+ struct function_bounds *func_bounds = NULL;
- if (arg != (char *) NULL)
+ if (arg != NULL)
return;
- fp = parse_frame_specification ("0");
+ frame = parse_frame_specification ("0");
sals = decode_line_spec (arg, 1);
func_bounds = (struct function_bounds *) xmalloc (
sizeof (struct function_bounds) * sals.nelts);
for (i = 0; (i < sals.nelts && !found); i++)
{
- if (sals.sals[i].pc == (CORE_ADDR) 0 ||
- find_pc_partial_function (sals.sals[i].pc,
- (char **) NULL,
- &func_bounds[i].low,
- &func_bounds[i].high) == 0)
+ 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 = (CORE_ADDR) NULL;
+ func_bounds[i].low = func_bounds[i].high = 0;
}
}
do
{
for (i = 0; (i < sals.nelts && !found); i++)
- found = (get_frame_pc (fp) >= func_bounds[i].low &&
- get_frame_pc (fp) < func_bounds[i].high);
+ found = (get_frame_pc (frame) >= func_bounds[i].low
+ && get_frame_pc (frame) < func_bounds[i].high);
if (!found)
{
level = 1;
- fp = find_relative_frame (fp, &level);
+ frame = find_relative_frame (frame, &level);
}
}
while (!found && level == 0);
if (!found)
printf_filtered (_("'%s' not within current stack frame.\n"), arg);
- else if (fp != deprecated_selected_frame)
- select_and_print_frame (fp);
+ else if (frame != get_selected_frame (NULL))
+ select_and_print_frame (frame);
}
/* Gets the language of the current frame. */
enum language
get_frame_language (void)
{
- struct symtab *s;
- enum language flang; /* The language of the current frame */
+ struct frame_info *frame = deprecated_safe_get_selected_frame ();
- if (deprecated_selected_frame)
+ if (frame)
{
/* We determine the current frame language by looking up its
- associated symtab. To retrieve this symtab, we use the frame PC.
- However we cannot use the frame pc as is, because it usually points
- to the instruction following the "call", which is sometimes the first
- instruction of another function. So we rely on
- get_frame_address_in_block(), it provides us with a PC which is
- guaranteed to be inside the frame's code block. */
- s = find_pc_symtab (get_frame_address_in_block (deprecated_selected_frame));
+ associated symtab. To retrieve this symtab, we use the frame
+ PC. However we cannot use the frame PC as is, because it
+ usually points to the instruction following the "call", which
+ is sometimes the first instruction of another function. So
+ we rely on get_frame_address_in_block(), it provides us with
+ a PC that is guaranteed to be inside the frame's code
+ block. */
+ CORE_ADDR pc = get_frame_address_in_block (frame);
+ struct symtab *s = find_pc_symtab (pc);
+
if (s)
- flang = s->language;
- else
- flang = language_unknown;
+ return s->language;
}
- else
- flang = language_unknown;
- return flang;
+ return language_unknown;
}
\f
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_stack (void);
+
void
_initialize_stack (void)
{
backtrace_limit = 30;
#endif
- add_com ("return", class_stack, return_command,
- "Make selected stack frame return to its caller.\n\
+ add_com ("return", class_stack, return_command, _("\
+Make selected stack frame return to its caller.\n\
Control remains in the debugger, but when you continue\n\
execution will resume in the frame above the one now selected.\n\
-If an argument is given, it is an expression for the value to return.");
-
- add_com ("up", class_stack, up_command,
- "Select and print stack frame that called this one.\n\
-An argument says how many frames up to go.");
- add_com ("up-silently", class_support, up_silently_command,
- "Same as the `up' command, but does not print anything.\n\
-This is useful in command scripts.");
-
- add_com ("down", class_stack, down_command,
- "Select and print stack frame called by this one.\n\
-An argument says how many frames down to go.");
+If an argument is given, it is an expression for the value to return."));
+
+ add_com ("up", class_stack, up_command, _("\
+Select and print stack frame that called this one.\n\
+An argument says how many frames up to go."));
+ add_com ("up-silently", class_support, up_silently_command, _("\
+Same as the `up' command, but does not print anything.\n\
+This is useful in command scripts."));
+
+ add_com ("down", class_stack, down_command, _("\
+Select and print stack frame called by this one.\n\
+An argument says how many frames down to go."));
add_com_alias ("do", "down", class_stack, 1);
add_com_alias ("dow", "down", class_stack, 1);
- add_com ("down-silently", class_support, down_silently_command,
- "Same as the `down' command, but does not print anything.\n\
-This is useful in command scripts.");
+ add_com ("down-silently", class_support, down_silently_command, _("\
+Same as the `down' command, but does not print anything.\n\
+This is useful in command scripts."));
- add_com ("frame", class_stack, frame_command,
- "Select and print a stack frame.\n\
+ add_com ("frame", class_stack, frame_command, _("\
+Select and print a stack frame.\n\
With no argument, print the selected stack frame. (See also \"info frame\").\n\
An argument specifies the frame to select.\n\
It can be a stack frame number or the address of the frame.\n\
With argument, nothing is printed if input is coming from\n\
-a command file or a user-defined command.");
+a command file or a user-defined command."));
add_com_alias ("f", "frame", class_stack, 1);
if (xdb_commands)
{
add_com ("L", class_stack, current_frame_command,
- "Print the current stack frame.\n");
+ _("Print the current stack frame.\n"));
add_com_alias ("V", "frame", class_stack, 1);
}
- add_com ("select-frame", class_stack, select_frame_command,
- "Select a stack frame without printing anything.\n\
+ add_com ("select-frame", class_stack, select_frame_command, _("\
+Select a stack frame without printing anything.\n\
An argument specifies the frame to select.\n\
-It can be a stack frame number or the address of the frame.\n");
+It can be a stack frame number or the address of the frame.\n"));
- add_com ("backtrace", class_stack, backtrace_command,
- "Print backtrace of all stack frames, or innermost COUNT frames.\n\
+ add_com ("backtrace", class_stack, backtrace_command, _("\
+Print backtrace of all stack frames, or innermost COUNT frames.\n\
With a negative argument, print outermost -COUNT frames.\n\
-Use of the 'full' qualifier also prints the values of the local variables.\n");
+Use of the 'full' qualifier also prints the values of the local variables.\n"));
add_com_alias ("bt", "backtrace", class_stack, 0);
if (xdb_commands)
{
add_com_alias ("t", "backtrace", class_stack, 0);
- add_com ("T", class_stack, backtrace_full_command,
- "Print backtrace of all stack frames, or innermost COUNT frames \n\
+ add_com ("T", class_stack, backtrace_full_command, _("\
+Print backtrace of all stack frames, or innermost COUNT frames \n\
and the values of the local variables.\n\
With a negative argument, print outermost -COUNT frames.\n\
-Usage: T <count>\n");
+Usage: T <count>\n"));
}
add_com_alias ("where", "backtrace", class_alias, 0);
add_info ("stack", backtrace_command,
- "Backtrace of the stack, or innermost COUNT frames.");
+ _("Backtrace of the stack, or innermost COUNT frames."));
add_info_alias ("s", "stack", 1);
add_info ("frame", frame_info,
- "All about selected stack frame, or frame at ADDR.");
+ _("All about selected stack frame, or frame at ADDR."));
add_info_alias ("f", "frame", 1);
add_info ("locals", locals_info,
- "Local variables of current stack frame.");
+ _("Local variables of current stack frame."));
add_info ("args", args_info,
- "Argument variables of current stack frame.");
+ _("Argument variables of current stack frame."));
if (xdb_commands)
add_com ("l", class_info, args_plus_locals_info,
- "Argument and local variables of current stack frame.");
+ _("Argument and local variables of current stack frame."));
if (dbx_commands)
- add_com ("func", class_stack, func_command,
- "Select the stack frame that contains <func>.\nUsage: func <name>\n");
+ add_com ("func", class_stack, func_command, _("\
+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.");
+ _("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"),
+ _("Show printing of non-scalar frame arguments"),
+ NULL, NULL, NULL, &setprintlist, &showprintlist);
+
+ add_setshow_auto_boolean_cmd ("disassemble-next-line", class_stack,
+ &disassemble_next_line, _("\
+Set whether to disassemble next source line or insn when execution stops."), _("\
+Show whether to disassemble next source line or insn when execution stops."), _("\
+If ON, GDB will display disassembly of the next source line, in addition\n\
+to displaying the source line itself. If the next source line cannot\n\
+be displayed (e.g., source is unavailable or there's no line info), GDB\n\
+will display disassembly of next instruction instead of showing the\n\
+source line.\n\
+If AUTO, display disassembly of next instruction only if the source line\n\
+cannot be displayed.\n\
+If OFF (which is the default), never display the disassembly of the next\n\
+source line."),
+ NULL,
+ show_disassemble_next_line,
+ &setlist, &showlist);
+ disassemble_next_line = AUTO_BOOLEAN_FALSE;
#if 0
- add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command,
- "Specify maximum number of frames for \"backtrace\" to print by default.",
+ add_cmd ("backtrace-limit", class_stack, set_backtrace_limit_command, _(\
+"Specify maximum number of frames for \"backtrace\" to print by default."),
&setlist);
- add_info ("backtrace-limit", backtrace_limit_info,
- "The maximum number of frames for \"backtrace\" to print by default.");
+ add_info ("backtrace-limit", backtrace_limit_info, _("\
+The maximum number of frames for \"backtrace\" to print by default."));
#endif
}