Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009 Free Software Foundation, Inc.
+ 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
#include "exceptions.h"
#include "observer.h"
#include "solist.h"
-#include "solib.h"
#include "parser-defs.h"
#include "charset.h"
+#include "arch-utils.h"
#ifdef TUI
-#include "tui/tui.h" /* For tui_active et.al. */
+#include "tui/tui.h" /* For tui_active et al. */
#endif
#if defined(__MINGW32__) && !defined(PRINTF_HAS_LONG_LONG)
# define USE_PRINTF_I64 0
#endif
-extern int asm_demangle; /* Whether to demangle syms in asm printouts */
+extern int asm_demangle; /* Whether to demangle syms in asm
+ printouts. */
struct format_data
{
show_max_symbolic_offset (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-The largest offset that will be printed in <symbol+1234> form is %s.\n"),
+ fprintf_filtered (file,
+ _("The largest offset that will be "
+ "printed in <symbol+1234> form is %s.\n"),
value);
}
show_print_symbol_filename (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Printing of source filename and line number with <symbol> is %s.\n"),
+ fprintf_filtered (file, _("Printing of source filename and "
+ "line number with <symbol> is %s.\n"),
value);
}
/* Program space associated with `block'. */
struct program_space *pspace;
- /* Innermost block required by this expression when evaluated */
+ /* Innermost block required by this expression when evaluated. */
struct block *block;
- /* Status of this display (enabled or disabled) */
+ /* Status of this display (enabled or disabled). */
int enabled_p;
};
static int display_number;
-/* Prototypes for exported functions. */
+/* Prototypes for exported functions. */
void output_command (char *, int);
void _initialize_printcmd (void);
-/* Prototypes for local functions. */
+/* Prototypes for local functions. */
static void do_one_display (struct display *);
\f
/* Characters default to one byte. */
val.size = osize ? 'b' : osize;
break;
+ case 's':
+ /* Display strings with byte size chars unless explicitly
+ specified. */
+ val.size = '\0';
+ break;
+
default:
/* The default is the size most recently specified. */
val.size = osize;
case 's':
{
struct type *elttype = value_type (val);
+
next_address = (value_address (val)
- + val_print_string (elttype,
+ + val_print_string (elttype, NULL,
value_address (val), -1,
- stream, options));
+ stream, options) * len);
}
return;
struct value_print_options opts = *options;
opts.format = 0;
opts.deref_ref = 0;
- val_print (type, valaddr, 0, 0, stream, 0, &opts,
+ val_print (type, valaddr, 0, 0, stream, 0, NULL, &opts,
current_language);
return;
}
case 'a':
{
CORE_ADDR addr = unpack_pointer (type, valaddr);
+
print_address (gdbarch, addr, stream);
}
break;
case 'c':
{
struct value_print_options opts = *options;
- opts.format = 0;
+ opts.format = 0;
if (TYPE_UNSIGNED (type))
type = builtin_type (gdbarch)->builtin_true_unsigned_char;
else
settings of the demangle and asm_demangle variables. */
void
-print_address_symbolic (CORE_ADDR addr, struct ui_file *stream,
+print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr,
+ struct ui_file *stream,
int do_demangle, char *leadin)
{
char *name = NULL;
struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name);
make_cleanup (free_current_contents, &filename);
- if (build_address_symbolic (addr, do_demangle, &name, &offset,
+ if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset,
&filename, &line, &unmapped))
{
do_cleanups (cleanup_chain);
}
/* Given an address ADDR return all the elements needed to print the
- address in a symbolic form. NAME can be mangled or not depending
+ address in a symbolic form. NAME can be mangled or not depending
on DO_DEMANGLE (and also on the asm_demangle global variable,
- manipulated via ''set print asm-demangle''). Return 0 in case of
- success, when all the info in the OUT paramters is valid. Return 1
- otherwise. */
+ manipulated via ''set print asm-demangle''). Return 0 in case of
+ success, when all the info in the OUT paramters is valid. Return 1
+ otherwise. */
int
-build_address_symbolic (CORE_ADDR addr, /* IN */
+build_address_symbolic (struct gdbarch *gdbarch,
+ CORE_ADDR addr, /* IN */
int do_demangle, /* IN */
char **name, /* OUT */
int *offset, /* OUT */
if (symbol)
{
+ /* If this is a function (i.e. a code address), strip out any
+ non-address bits. For instance, display a pointer to the
+ first instruction of a Thumb function as <function>; the
+ second instruction will be <function+2>, even though the
+ pointer is <function+3>. This matches the ISA behavior. */
+ addr = gdbarch_addr_bits_remove (gdbarch, addr);
+
name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol));
if (do_demangle || asm_demangle)
name_temp = SYMBOL_PRINT_NAME (symbol);
CORE_ADDR addr, struct ui_file *stream)
{
fputs_filtered (paddress (gdbarch, addr), stream);
- print_address_symbolic (addr, stream, asm_demangle, " ");
+ print_address_symbolic (gdbarch, addr, stream, asm_demangle, " ");
}
/* Return a prefix for instruction address:
struct ui_file *stream, int do_demangle)
{
struct value_print_options opts;
+
get_user_print_options (&opts);
if (addr == 0)
{
else if (opts.addressprint)
{
fputs_filtered (paddress (gdbarch, addr), stream);
- print_address_symbolic (addr, stream, do_demangle, " ");
+ print_address_symbolic (gdbarch, addr, stream, do_demangle, " ");
}
else
{
- print_address_symbolic (addr, stream, do_demangle, "");
+ print_address_symbolic (gdbarch, addr, stream, do_demangle, "");
}
}
\f
next_gdbarch = gdbarch;
next_address = addr;
- /* String or instruction format implies fetch single bytes
- regardless of the specified size. */
- if (format == 's' || format == 'i')
+ /* Instruction format implies fetch single bytes
+ regardless of the specified size.
+ The case of strings is handled in decode_format, only explicit
+ size operator are not changed to 'b'. */
+ if (format == 'i')
size = 'b';
if (size == 'a')
else if (size == 'g')
val_type = builtin_type (next_gdbarch)->builtin_int64;
+ if (format == 's')
+ {
+ struct type *char_type = NULL;
+
+ /* Search for "char16_t" or "char32_t" types or fall back to 8-bit char
+ if type is not found. */
+ if (size == 'h')
+ char_type = builtin_type (next_gdbarch)->builtin_char16;
+ else if (size == 'w')
+ char_type = builtin_type (next_gdbarch)->builtin_char32;
+ if (char_type)
+ val_type = char_type;
+ else
+ {
+ if (size != '\0' && size != 'b')
+ warning (_("Unable to display strings with "
+ "size '%c', using 'b' instead."), size);
+ size = 'b';
+ val_type = builtin_type (next_gdbarch)->builtin_int8;
+ }
+ }
+
maxelts = 8;
if (size == 'w')
maxelts = 4;
the address stored in LAST_EXAMINE_VALUE. FIXME: Should
the disassembler be modified so that LAST_EXAMINE_VALUE
is left with the byte sequence from the last complete
- instruction fetched from memory? */
+ instruction fetched from memory? */
last_examine_value = value_at_lazy (val_type, next_address);
if (last_examine_value)
if (exp && *exp)
{
- struct type *type;
expr = parse_expression (exp);
old_chain = make_cleanup (free_current_contents, &expr);
cleanup = 1;
struct expression *expr = parse_expression (exp);
struct cleanup *old_chain =
make_cleanup (free_current_contents, &expr);
+
evaluate_expression (expr);
do_cleanups (old_chain);
}
struct minimal_symbol *msymbol;
long val;
struct obj_section *section;
- CORE_ADDR load_addr;
+ CORE_ADDR load_addr, context_pc = 0;
int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero
- if exp is a field of `this'. */
+ if exp is a field of `this'. */
if (exp == 0)
error (_("Argument required."));
- sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN,
+ sym = lookup_symbol (exp, get_selected_block (&context_pc), VAR_DOMAIN,
&is_a_field_of_this);
if (sym == NULL)
{
Unfortunately DWARF 2 stores the frame-base (instead of the
function) location in a function's symbol. Oops! For the
moment enable this when/where applicable. */
- SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout);
+ SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc,
+ gdb_stdout);
break;
case LOC_REGISTER:
old_chain = make_cleanup (free_current_contents, &expr);
val = evaluate_expression (expr);
if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF)
- val = value_ind (val);
+ val = coerce_ref (val);
/* In rvalue contexts, such as this, functions are coerced into
pointers to functions. This makes "x/i main" work. */
if (/* last_format == 'i' && */
do_examine (fmt, next_gdbarch, next_address);
/* If the examine succeeds, we remember its size and format for next
- time. */
- last_size = fmt.size;
+ time. Set last_size to 'b' for strings. */
+ if (fmt.format == 's')
+ last_size = 'b';
+ else
+ last_size = fmt.size;
last_format = fmt.format;
- /* Set a couple of internal variables if appropriate. */
+ /* Set a couple of internal variables if appropriate. */
if (last_examine_value)
{
/* Make last address examined available to the user as $_. Use
/* Display a single auto-display.
Do nothing if the display cannot be printed in the current context,
- or if the display is disabled. */
+ or if the display is disabled. */
static void
do_one_display (struct display *d)
if (d->enabled_p == 0)
return;
+ /* The expression carries the architecture that was used at parse time.
+ This is a problem if the expression depends on architecture features
+ (e.g. register numbers), and the current architecture is now different.
+ For example, a display statement like "display/i $pc" is expected to
+ display the PC register of the current architecture, not the arch at
+ the time the display command was given. Therefore, we re-parse the
+ expression if the current architecture has changed. */
+ if (d->exp != NULL && d->exp->gdbarch != get_current_arch ())
+ {
+ xfree (d->exp);
+ d->exp = NULL;
+ d->block = NULL;
+ }
+
if (d->exp == NULL)
{
volatile struct gdb_exception ex;
+
TRY_CATCH (ex, RETURN_MASK_ALL)
{
innermost_block = NULL;
if (current_display_number >= 0)
{
disable_display (current_display_number);
- fprintf_unfiltered (gdb_stderr, _("\
-Disabling display %d to avoid infinite recursion.\n"),
+ fprintf_unfiltered (gdb_stderr,
+ _("Disabling display %d to "
+ "avoid infinite recursion.\n"),
current_display_number);
}
current_display_number = -1;
}
}
-/* Return 1 if D uses SOLIB (and will become dangling when SOLIB
- is unloaded), otherwise return 0. */
-
-static int
-display_uses_solib_p (const struct display *d,
- const struct so_list *solib)
-{
- int endpos;
- struct expression *const exp = d->exp;
- const union exp_element *const elts = exp->elts;
-
- if (d->block != NULL
- && d->pspace == solib->pspace
- && solib_contains_address_p (solib, d->block->startaddr))
- return 1;
-
- for (endpos = exp->nelts; endpos > 0; )
- {
- int i, args, oplen = 0;
-
- exp->language_defn->la_exp_desc->operator_length (exp, endpos,
- &oplen, &args);
- gdb_assert (oplen > 0);
-
- i = endpos - oplen;
- if (elts[i].opcode == OP_VAR_VALUE)
- {
- const struct block *const block = elts[i + 1].block;
- const struct symbol *const symbol = elts[i + 2].symbol;
- const struct obj_section *const section =
- SYMBOL_OBJ_SECTION (symbol);
-
- if (block != NULL
- && solib_contains_address_p (solib,
- block->startaddr))
- return 1;
-
- if (section && section->objfile == solib->objfile)
- return 1;
- }
- endpos -= oplen;
- }
-
- return 0;
-}
-
/* display_chain items point to blocks and expressions. Some expressions in
turn may point to symbols.
Both symbols and blocks are obstack_alloc'd on objfile_stack, and are
static void
clear_dangling_display_expressions (struct so_list *solib)
{
+ struct objfile *objfile = solib->objfile;
struct display *d;
- struct objfile *objfile = NULL;
- for (d = display_chain; d; d = d->next)
+ /* With no symbol file we cannot have a block or expression from it. */
+ if (objfile == NULL)
+ return;
+ if (objfile->separate_debug_objfile_backlink)
+ objfile = objfile->separate_debug_objfile_backlink;
+ gdb_assert (objfile->pspace == solib->pspace);
+
+ for (d = display_chain; d != NULL; d = d->next)
{
- if (d->exp && display_uses_solib_p (d, solib))
- {
- xfree (d->exp);
- d->exp = NULL;
- d->block = NULL;
- }
+ if (d->pspace != solib->pspace)
+ continue;
+
+ if (lookup_objfile_from_block (d->block) == objfile
+ || (d->exp && exp_uses_objfile (d->exp, objfile)))
+ {
+ xfree (d->exp);
+ d->exp = NULL;
+ d->block = NULL;
+ }
}
}
\f
struct frame_info *frame,
struct ui_file *stream, int indent)
{
- struct value *val;
- struct value_print_options opts;
+ volatile struct gdb_exception except;
if (!name)
name = SYMBOL_PRINT_NAME (var);
fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name);
+ TRY_CATCH (except, RETURN_MASK_ERROR)
+ {
+ struct value *val;
+ struct value_print_options opts;
- val = read_var_value (var, frame);
- get_user_print_options (&opts);
- common_val_print (val, stream, indent, &opts, current_language);
+ val = read_var_value (var, frame);
+ get_user_print_options (&opts);
+ common_val_print (val, stream, indent, &opts, current_language);
+ }
+ if (except.reason < 0)
+ fprintf_filtered(stream, "<error reading variable %s (%s)>", name,
+ except.message);
fprintf_filtered (stream, "\n");
}
+/* printf "printf format string" ARG to STREAM. */
+
static void
-printf_command (char *arg, int from_tty)
+ui_printf (char *arg, struct ui_file *stream)
{
char *f = NULL;
char *s = arg;
if (s == 0)
error_no_arg (_("format-control string and values to print"));
- /* Skip white space before format string */
+ /* Skip white space before format string. */
while (*s == ' ' || *s == '\t')
s++;
*f++ = '"';
break;
default:
- /* ??? TODO: handle other escape sequences */
+ /* ??? TODO: handle other escape sequences. */
error (_("Unrecognized escape character \\%c in format string."),
c);
}
}
if (bad)
- error (_("Inappropriate modifiers to format specifier '%c' in printf"),
+ error (_("Inappropriate modifiers to "
+ "format specifier '%c' in printf"),
*f);
f++;
/* Windows' printf does support long long, but not the usual way.
Convert %lld to %I64d. */
int length_before_ll = f - last_arg - 1 - lcount;
+
strncpy (current_substring, last_arg, length_before_ll);
strcpy (current_substring + length_before_ll, "I64");
current_substring[length_before_ll + 3] =
{
/* Convert %ls or %lc to %s. */
int length_before_ls = f - last_arg - 2;
+
strncpy (current_substring, last_arg, length_before_ls);
strcpy (current_substring + length_before_ls, "s");
current_substring += length_before_ls + 2;
while (*s != '\0')
{
char *s1;
+
if (nargs == allocated_args)
val_args = (struct value **) xrealloc ((char *) val_args,
(allocated_args *= 2)
gdb_byte *str;
CORE_ADDR tem;
int j;
+
tem = value_as_address (val_args[i]);
/* This is a %s argument. Find the length of the string. */
for (j = 0;; j++)
{
gdb_byte c;
+
QUIT;
read_memory (tem + j, &c, 1);
if (c == 0)
read_memory (tem, str, j);
str[j] = 0;
- printf_filtered (current_substring, (char *) str);
+ fprintf_filtered (stream, current_substring, (char *) str);
}
break;
case wide_string_arg:
obstack_init (&output);
inner_cleanup = make_cleanup_obstack_free (&output);
- convert_between_encodings (target_wide_charset (byte_order),
+ convert_between_encodings (target_wide_charset (gdbarch),
host_charset (),
str, j, wcwidth,
&output, translit_char);
obstack_grow_str0 (&output, "");
- printf_filtered (current_substring, obstack_base (&output));
+ fprintf_filtered (stream, current_substring,
+ obstack_base (&output));
do_cleanups (inner_cleanup);
}
break;
{
struct gdbarch *gdbarch
= get_type_arch (value_type (val_args[i]));
- enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
struct type *wctype = lookup_typename (current_language, gdbarch,
"wchar_t", NULL, 0);
struct type *valtype;
obstack_init (&output);
inner_cleanup = make_cleanup_obstack_free (&output);
- convert_between_encodings (target_wide_charset (byte_order),
+ convert_between_encodings (target_wide_charset (gdbarch),
host_charset (),
bytes, TYPE_LENGTH (valtype),
TYPE_LENGTH (valtype),
&output, translit_char);
obstack_grow_str0 (&output, "");
- printf_filtered (current_substring, obstack_base (&output));
+ fprintf_filtered (stream, current_substring,
+ obstack_base (&output));
do_cleanups (inner_cleanup);
}
break;
if (inv)
error (_("Invalid floating value found in program."));
- printf_filtered (current_substring, (double) val);
+ fprintf_filtered (stream, current_substring, (double) val);
break;
}
case long_double_arg:
if (inv)
error (_("Invalid floating value found in program."));
- printf_filtered (current_substring, (long double) val);
+ fprintf_filtered (stream, current_substring,
+ (long double) val);
break;
}
#else
#if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG)
{
long long val = value_as_long (val_args[i]);
- printf_filtered (current_substring, val);
+
+ fprintf_filtered (stream, current_substring, val);
break;
}
#else
case int_arg:
{
int val = value_as_long (val_args[i]);
- printf_filtered (current_substring, val);
+
+ fprintf_filtered (stream, current_substring, val);
break;
}
case long_arg:
{
long val = value_as_long (val_args[i]);
- printf_filtered (current_substring, val);
+
+ fprintf_filtered (stream, current_substring, val);
break;
}
case decfloat_arg:
{
const gdb_byte *param_ptr = value_contents (val_args[i]);
+
#if defined (PRINTF_HAS_DECFLOAT)
/* If we have native support for Decimal floating
printing, handle it here. */
- printf_filtered (current_substring, param_ptr);
+ fprintf_filtered (stream, current_substring, param_ptr);
#else
/* As a workaround until vasprintf has native support for DFP
decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr);
/* Print the DFP value. */
- printf_filtered (current_substring, decstr);
+ fprintf_filtered (stream, current_substring, decstr);
break;
#endif
while (*p)
{
int is_percent = (*p == '%');
+
*fmt_p++ = *p++;
if (is_percent)
{
*fmt_p++ = 'l';
*fmt_p++ = 'x';
*fmt_p++ = '\0';
- printf_filtered (fmt, val);
+ fprintf_filtered (stream, fmt, val);
}
else
{
*fmt_p++ = 's';
*fmt_p++ = '\0';
- printf_filtered (fmt, "(nil)");
+ fprintf_filtered (stream, fmt, "(nil)");
}
break;
/* Skip to the next substring. */
current_substring += strlen (current_substring) + 1;
}
- /* Print the portion of the format string after the last argument. */
- puts_filtered (last_arg);
+ /* Print the portion of the format string after the last argument.
+ Note that this will not include any ordinary %-specs, but it
+ might include "%%". That is why we use printf_filtered and not
+ puts_filtered here. Also, we pass a dummy argument because
+ some platforms have modified GCC to include -Wformat-security
+ by default, which will warn here if there is no argument. */
+ fprintf_filtered (stream, last_arg, 0);
}
do_cleanups (old_cleanups);
}
+/* Implement the "printf" command. */
+
+static void
+printf_command (char *arg, int from_tty)
+{
+ ui_printf (arg, gdb_stdout);
+}
+
+/* Implement the "eval" command. */
+
+static void
+eval_command (char *arg, int from_tty)
+{
+ struct ui_file *ui_out = mem_fileopen ();
+ struct cleanup *cleanups = make_cleanup_ui_file_delete (ui_out);
+ char *expanded;
+
+ ui_printf (arg, ui_out);
+
+ expanded = ui_file_xstrdup (ui_out, NULL);
+ make_cleanup (xfree, expanded);
+
+ execute_command (expanded, from_tty);
+
+ do_cleanups (cleanups);
+}
+
void
_initialize_printcmd (void)
{
\nWith a subcommand, this command modifies parts of the gdb environment.\n\
You can see these environment settings with the \"show\" command."));
- /* "call" is the same as "set", but handy for dbx users to call fns. */
+ /* "call" is the same as "set", but handy for dbx users to call fns. */
c = add_com ("call", class_vars, call_command, _("\
Call a function in the program.\n\
The argument is the function name and arguments, in the notation of the\n\
NULL,
show_print_symbol_filename,
&setprintlist, &showprintlist);
+
+ add_com ("eval", no_class, eval_command, _("\
+Convert \"printf format string\", arg1, arg2, arg3, ..., argn to\n\
+a command line, and call it."));
}
projects / deliverable / binutils-gdb.git / blobdiff