/* Print values for GNU debugger GDB.
- 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) 1986-2016 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 "defs.h"
-#include "gdb_string.h"
#include "frame.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "target.h"
#include "breakpoint.h"
#include "demangle.h"
+#include "gdb-demangle.h"
#include "valprint.h"
#include "annotate.h"
#include "symfile.h" /* for overlay functions */
#include "objfiles.h" /* ditto */
#include "completer.h" /* for completion functions */
#include "ui-out.h"
-#include "gdb_assert.h"
#include "block.h"
#include "disasm.h"
+#include "dfp.h"
+#include "observer.h"
+#include "solist.h"
+#include "parser-defs.h"
+#include "charset.h"
+#include "arch-utils.h"
+#include "cli/cli-utils.h"
+#include "format.h"
+#include "source.h"
#ifdef TUI
-#include "tui/tui.h" /* For tui_active et.al. */
+#include "tui/tui.h" /* For tui_active et al. */
#endif
-extern int asm_demangle; /* Whether to demangle syms in asm printouts */
-extern int addressprint; /* Whether to print hex addresses in HLL " */
-
-struct format_data
- {
- int count;
- char format;
- char size;
- };
-
/* Last specified output format. */
-static char last_format = 'x';
+static char last_format = 0;
/* Last specified examination size. 'b', 'h', 'w' or `q'. */
static char last_size = 'w';
-/* Default address to examine next. */
+/* Default address to examine next, and associated architecture. */
+static struct gdbarch *next_gdbarch;
static CORE_ADDR next_address;
+/* Number of delay instructions following current disassembled insn. */
+
+static int branch_delay_insns;
+
/* Last address examined. */
static CORE_ADDR last_examine_address;
printed as `0x1234 <symbol+offset>'. */
static unsigned int max_symbolic_offset = UINT_MAX;
+static void
+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"),
+ value);
+}
/* Append the source filename and linenumber of the symbol when
printing a symbolic value as `<symbol at filename:linenum>' if set. */
static int print_symbol_filename = 0;
+static void
+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"),
+ value);
+}
/* Number of auto-display expression currently being displayed.
- So that we can disable it if we get an error or a signal within it.
+ So that we can disable it if we get a signal within it.
-1 when not doing one. */
-int current_display_number;
-
-/* Flag to low-level print routines that this value is being printed
- in an epoch window. We'd like to pass this as a parameter, but
- every routine would need to take it. Perhaps we can encapsulate
- this in the I/O stream once we have GNU stdio. */
-
-int inspect_it = 0;
+static int current_display_number;
struct display
{
/* Chain link to next auto-display item. */
struct display *next;
+
+ /* The expression as the user typed it. */
+ char *exp_string;
+
/* Expression to be evaluated and displayed. */
- struct expression *exp;
+ expression_up exp;
+
/* Item number of this auto-display item. */
int number;
+
/* Display format specified. */
struct format_data format;
- /* Innermost block required by this expression when evaluated */
- struct block *block;
- /* Status of this display (enabled or disabled) */
+
+ /* Program space associated with `block'. */
+ struct program_space *pspace;
+
+ /* Innermost block required by this expression when evaluated. */
+ const struct block *block;
+
+ /* Status of this display (enabled or disabled). */
int enabled_p;
};
static int display_number;
-/* Prototypes for exported functions. */
-
-void output_command (char *, int);
-
-void _initialize_printcmd (void);
-
-/* Prototypes for local functions. */
+/* Walk the following statement or block through all displays.
+ ALL_DISPLAYS_SAFE does so even if the statement deletes the current
+ display. */
-static void delete_display (int);
+#define ALL_DISPLAYS(B) \
+ for (B = display_chain; B; B = B->next)
-static void enable_display (char *, int);
+#define ALL_DISPLAYS_SAFE(B,TMP) \
+ for (B = display_chain; \
+ B ? (TMP = B->next, 1): 0; \
+ B = TMP)
-static void disable_display_command (char *, int);
+/* Prototypes for exported functions. */
-static void printf_command (char *, int);
+void _initialize_printcmd (void);
-static void display_info (char *, int);
+/* Prototypes for local functions. */
static void do_one_display (struct display *);
-
-static void undisplay_command (char *, int);
-
-static void free_display (struct display *);
-
-static void display_command (char *, int);
-
-void x_command (char *, int);
-
-static void address_info (char *, int);
-
-static void set_command (char *, int);
-
-static void call_command (char *, int);
-
-static void inspect_command (char *, int);
-
-static void print_command (char *, int);
-
-static void print_command_1 (char *, int, int);
-
-static void validate_format (struct format_data, char *);
-
-static void print_formatted (struct value *, int, int, struct ui_file *);
-
-static struct format_data decode_format (char **, int, int);
-
-static void sym_info (char *, int);
\f
/* Decode a format specification. *STRING_PTR should point to it.
past the specification and past all whitespace following it. */
static struct format_data
-decode_format (char **string_ptr, int oformat, int osize)
+decode_format (const char **string_ptr, int oformat, int osize)
{
struct format_data val;
- char *p = *string_ptr;
+ const char *p = *string_ptr;
val.format = '?';
val.size = '?';
val.count = 1;
+ val.raw = 0;
+ if (*p == '-')
+ {
+ val.count = -1;
+ p++;
+ }
if (*p >= '0' && *p <= '9')
- val.count = atoi (p);
+ val.count *= atoi (p);
while (*p >= '0' && *p <= '9')
p++;
{
if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g')
val.size = *p++;
+ else if (*p == 'r')
+ {
+ val.raw = 1;
+ p++;
+ }
else if (*p >= 'a' && *p <= 'z')
val.format = *p++;
else
switch (val.format)
{
case 'a':
- case 's':
- /* Pick the appropriate size for an address. */
- if (TARGET_PTR_BIT == 64)
- val.size = osize ? 'g' : osize;
- else if (TARGET_PTR_BIT == 32)
- val.size = osize ? 'w' : osize;
- else if (TARGET_PTR_BIT == 16)
- val.size = osize ? 'h' : osize;
- else
- /* Bad value for TARGET_PTR_BIT */
- internal_error (__FILE__, __LINE__, "failed internal consistency check");
+ /* Pick the appropriate size for an address. This is deferred
+ until do_examine when we know the actual architecture to use.
+ A special size value of 'a' is used to indicate this case. */
+ val.size = osize ? 'a' : osize;
break;
case 'f':
/* Floating point has to be word or giantword. */
/* 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;
return val;
}
\f
-/* Print value VAL on stream according to FORMAT, a letter or 0.
+/* Print value VAL on stream according to OPTIONS.
Do not end with a newline.
- 0 means print VAL according to its own type.
SIZE is the letter for the size of datum being printed.
- This is used to pad hex numbers so they line up. */
+ This is used to pad hex numbers so they line up. SIZE is 0
+ for print / output and set for examine. */
static void
-print_formatted (struct value *val, int format, int size,
+print_formatted (struct value *val, int size,
+ const struct value_print_options *options,
struct ui_file *stream)
{
struct type *type = check_typedef (value_type (val));
int len = TYPE_LENGTH (type);
if (VALUE_LVAL (val) == lval_memory)
- {
- next_address = VALUE_ADDRESS (val) + len;
- }
+ next_address = value_address (val) + len;
- switch (format)
+ if (size)
{
- case 's':
- /* FIXME: Need to handle wchar_t's here... */
- next_address = VALUE_ADDRESS (val)
- + val_print_string (VALUE_ADDRESS (val), -1, 1, stream);
- break;
+ switch (options->format)
+ {
+ case 's':
+ {
+ struct type *elttype = value_type (val);
- case 'i':
- /* The old comment says
- "Force output out, print_insn not using _filtered".
- I'm not completely sure what that means, I suspect most print_insn
- now do use _filtered, so I guess it's obsolete.
- --Yes, it does filter now, and so this is obsolete. -JB */
-
- /* We often wrap here if there are long symbolic names. */
- wrap_here (" ");
- next_address = VALUE_ADDRESS (val)
- + gdb_print_insn (VALUE_ADDRESS (val), stream);
- break;
+ next_address = (value_address (val)
+ + val_print_string (elttype, NULL,
+ value_address (val), -1,
+ stream, options) * len);
+ }
+ return;
- default:
- if (format == 0
- || TYPE_CODE (type) == TYPE_CODE_ARRAY
- || TYPE_CODE (type) == TYPE_CODE_STRING
- || TYPE_CODE (type) == TYPE_CODE_STRUCT
- || TYPE_CODE (type) == TYPE_CODE_UNION
- || TYPE_CODE (type) == TYPE_CODE_NAMESPACE)
- /* If format is 0, use the 'natural' format for
- * that type of value. If the type is non-scalar,
- * we have to use language rules to print it as
- * a series of scalars.
- */
- value_print (val, stream, format, Val_pretty_default);
- else
- /* User specified format, so don't look to the
- * the type to tell us what to do.
- */
- print_scalar_formatted (value_contents (val), type,
- format, size, stream);
+ case 'i':
+ /* We often wrap here if there are long symbolic names. */
+ wrap_here (" ");
+ next_address = (value_address (val)
+ + gdb_print_insn (get_type_arch (type),
+ value_address (val), stream,
+ &branch_delay_insns));
+ return;
+ }
}
+
+ if (options->format == 0 || options->format == 's'
+ || TYPE_CODE (type) == TYPE_CODE_REF
+ || TYPE_CODE (type) == TYPE_CODE_ARRAY
+ || TYPE_CODE (type) == TYPE_CODE_STRING
+ || TYPE_CODE (type) == TYPE_CODE_STRUCT
+ || TYPE_CODE (type) == TYPE_CODE_UNION
+ || TYPE_CODE (type) == TYPE_CODE_NAMESPACE)
+ value_print (val, stream, options);
+ else
+ /* User specified format, so don't look to the type to tell us
+ what to do. */
+ val_print_scalar_formatted (type,
+ value_embedded_offset (val),
+ val,
+ options, size, stream);
}
-/* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
- according to letters FORMAT and SIZE on STREAM.
- FORMAT may not be zero. Formats s and i are not supported at this level.
+/* Return builtin floating point type of same length as TYPE.
+ If no such type is found, return TYPE itself. */
+static struct type *
+float_type_from_length (struct type *type)
+{
+ struct gdbarch *gdbarch = get_type_arch (type);
+ const struct builtin_type *builtin = builtin_type (gdbarch);
+
+ if (TYPE_LENGTH (type) == TYPE_LENGTH (builtin->builtin_float))
+ type = builtin->builtin_float;
+ else if (TYPE_LENGTH (type) == TYPE_LENGTH (builtin->builtin_double))
+ type = builtin->builtin_double;
+ else if (TYPE_LENGTH (type) == TYPE_LENGTH (builtin->builtin_long_double))
+ type = builtin->builtin_long_double;
- This is how the elements of an array or structure are printed
- with a format. */
+ return type;
+}
+
+/* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
+ according to OPTIONS and SIZE on STREAM. Formats s and i are not
+ supported at this level. */
void
-print_scalar_formatted (const void *valaddr, struct type *type,
- int format, int size, struct ui_file *stream)
+print_scalar_formatted (const gdb_byte *valaddr, struct type *type,
+ const struct value_print_options *options,
+ int size, struct ui_file *stream)
{
+ struct gdbarch *gdbarch = get_type_arch (type);
LONGEST val_long = 0;
unsigned int len = TYPE_LENGTH (type);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
+ /* String printing should go through val_print_scalar_formatted. */
+ gdb_assert (options->format != 's');
- if (len > sizeof(LONGEST) &&
- (TYPE_CODE (type) == TYPE_CODE_INT
- || TYPE_CODE (type) == TYPE_CODE_ENUM))
+ if (len > sizeof(LONGEST)
+ && (TYPE_CODE (type) == TYPE_CODE_INT
+ || TYPE_CODE (type) == TYPE_CODE_ENUM))
{
- switch (format)
+ switch (options->format)
{
case 'o':
- print_octal_chars (stream, valaddr, len);
+ print_octal_chars (stream, valaddr, len, byte_order);
return;
case 'u':
case 'd':
- print_decimal_chars (stream, valaddr, len);
+ print_decimal_chars (stream, valaddr, len, byte_order);
return;
case 't':
- print_binary_chars (stream, valaddr, len);
+ print_binary_chars (stream, valaddr, len, byte_order);
return;
case 'x':
- print_hex_chars (stream, valaddr, len);
+ print_hex_chars (stream, valaddr, len, byte_order);
return;
case 'c':
- print_char_chars (stream, valaddr, len);
+ print_char_chars (stream, type, valaddr, len, byte_order);
return;
default:
break;
};
}
- if (format != 'f')
+ if (options->format != 'f')
val_long = unpack_long (type, valaddr);
/* If the value is a pointer, and pointers and addresses are not the
same, then at this point, the value's length (in target bytes) is
- TARGET_ADDR_BIT/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */
+ gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */
if (TYPE_CODE (type) == TYPE_CODE_PTR)
- len = TARGET_ADDR_BIT / TARGET_CHAR_BIT;
+ len = gdbarch_addr_bit (gdbarch) / TARGET_CHAR_BIT;
/* If we are printing it as unsigned, truncate it in case it is actually
a negative signed value (e.g. "print/u (short)-1" should print 65535
(if shorts are 16 bits) instead of 4294967295). */
- if (format != 'd')
+ if (options->format != 'd' || TYPE_UNSIGNED (type))
{
if (len < sizeof (LONGEST))
val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1;
}
- switch (format)
+ switch (options->format)
{
case 'x':
if (!size)
{
- /* no size specified, like in print. Print varying # of digits. */
+ /* No size specified, like in print. Print varying # of digits. */
print_longest (stream, 'x', 1, val_long);
}
else
print_longest (stream, size, 1, val_long);
break;
default:
- error ("Undefined output size \"%c\".", size);
+ error (_("Undefined output size \"%c\"."), size);
}
break;
case 'a':
{
CORE_ADDR addr = unpack_pointer (type, valaddr);
- print_address (addr, stream);
+
+ print_address (gdbarch, addr, stream);
}
break;
case 'c':
- value_print (value_from_longest (builtin_type_true_char, val_long),
- stream, 0, Val_pretty_default);
+ {
+ struct value_print_options opts = *options;
+
+ opts.format = 0;
+ if (TYPE_UNSIGNED (type))
+ type = builtin_type (gdbarch)->builtin_true_unsigned_char;
+ else
+ type = builtin_type (gdbarch)->builtin_true_char;
+
+ value_print (value_from_longest (type, val_long), stream, &opts);
+ }
break;
case 'f':
- if (len == TYPE_LENGTH (builtin_type_float))
- type = builtin_type_float;
- else if (len == TYPE_LENGTH (builtin_type_double))
- type = builtin_type_double;
- else if (len == TYPE_LENGTH (builtin_type_long_double))
- type = builtin_type_long_double;
+ type = float_type_from_length (type);
print_floating (valaddr, type, stream);
break;
case 0:
- internal_error (__FILE__, __LINE__, "failed internal consistency check");
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
case 't':
/* Binary; 't' stands for "two". */
width = 64;
break;
default:
- error ("Undefined output size \"%c\".", size);
+ error (_("Undefined output size \"%c\"."), size);
}
bits[width] = '\0';
if (*cp == '\0')
cp--;
}
- strcpy (buf, cp);
+ strncpy (buf, cp, sizeof (bits));
fputs_filtered (buf, stream);
}
break;
+ case 'z':
+ print_hex_chars (stream, valaddr, len, byte_order);
+ break;
+
default:
- error ("Undefined output format \"%c\".", format);
+ error (_("Undefined output format \"%c\"."), options->format);
}
}
/* Specify default address for `x' command.
- `info lines' uses this. */
+ The `info lines' command uses this. */
void
-set_next_address (CORE_ADDR addr)
+set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr)
{
+ struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
+
+ next_gdbarch = gdbarch;
next_address = addr;
/* Make address available to the user as $_. */
set_internalvar (lookup_internalvar ("_"),
- value_from_pointer (lookup_pointer_type (builtin_type_void),
- addr));
+ value_from_pointer (ptr_type, addr));
}
/* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM,
DO_DEMANGLE controls whether to print a symbol in its native "raw" form,
or to interpret it as a possible C++ name and convert it back to source
form. However note that DO_DEMANGLE can be overridden by the specific
- settings of the demangle and asm_demangle variables. */
+ settings of the demangle and asm_demangle variables. Returns
+ non-zero if anything was printed; zero otherwise. */
-void
-print_address_symbolic (CORE_ADDR addr, struct ui_file *stream, int do_demangle,
- char *leadin)
+int
+print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr,
+ struct ui_file *stream,
+ int do_demangle, char *leadin)
{
char *name = NULL;
char *filename = NULL;
int offset = 0;
int line = 0;
- /* throw away both name and filename */
+ /* Throw away both name and filename. */
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, &filename, &line, &unmapped))
+ if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset,
+ &filename, &line, &unmapped))
{
do_cleanups (cleanup_chain);
- return;
+ return 0;
}
fputs_filtered (leadin, stream);
fputs_filtered (">", stream);
do_cleanups (cleanup_chain);
+ return 1;
}
/* 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 */
int *line, /* OUT */
int *unmapped) /* OUT */
{
- struct minimal_symbol *msymbol;
+ struct bound_minimal_symbol msymbol;
struct symbol *symbol;
- struct symtab *symtab = 0;
CORE_ADDR name_location = 0;
- asection *section = 0;
- char *name_temp = "";
+ struct obj_section *section = NULL;
+ const char *name_temp = "";
- /* Let's say it is unmapped. */
+ /* Let's say it is mapped (not unmapped). */
*unmapped = 0;
/* Determine if the address is in an overlay, and whether it is
- mapped. */
+ mapped. */
if (overlay_debugging)
{
section = find_pc_overlay (addr);
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);
else
- name_temp = DEPRECATED_SYMBOL_NAME (symbol);
+ name_temp = SYMBOL_LINKAGE_NAME (symbol);
}
- if (msymbol != NULL)
+ if (msymbol.minsym != NULL
+ && MSYMBOL_HAS_SIZE (msymbol.minsym)
+ && MSYMBOL_SIZE (msymbol.minsym) == 0
+ && MSYMBOL_TYPE (msymbol.minsym) != mst_text
+ && MSYMBOL_TYPE (msymbol.minsym) != mst_text_gnu_ifunc
+ && MSYMBOL_TYPE (msymbol.minsym) != mst_file_text)
+ msymbol.minsym = NULL;
+
+ if (msymbol.minsym != NULL)
{
- if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL)
+ if (BMSYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL)
{
+ /* 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. */
+ if (MSYMBOL_TYPE (msymbol.minsym) == mst_text
+ || MSYMBOL_TYPE (msymbol.minsym) == mst_text_gnu_ifunc
+ || MSYMBOL_TYPE (msymbol.minsym) == mst_file_text
+ || MSYMBOL_TYPE (msymbol.minsym) == mst_solib_trampoline)
+ addr = gdbarch_addr_bits_remove (gdbarch, addr);
+
/* The msymbol is closer to the address than the symbol;
use the msymbol instead. */
symbol = 0;
- symtab = 0;
- name_location = SYMBOL_VALUE_ADDRESS (msymbol);
+ name_location = BMSYMBOL_VALUE_ADDRESS (msymbol);
if (do_demangle || asm_demangle)
- name_temp = SYMBOL_PRINT_NAME (msymbol);
+ name_temp = MSYMBOL_PRINT_NAME (msymbol.minsym);
else
- name_temp = DEPRECATED_SYMBOL_NAME (msymbol);
+ name_temp = MSYMBOL_LINKAGE_NAME (msymbol.minsym);
}
}
- if (symbol == NULL && msymbol == NULL)
+ if (symbol == NULL && msymbol.minsym == NULL)
return 1;
/* If the nearest symbol is too far away, don't print anything symbolic. */
if (sal.symtab)
{
- *filename = xstrdup (sal.symtab->filename);
+ *filename = xstrdup (symtab_to_filename_for_display (sal.symtab));
*line = sal.line;
}
- else if (symtab && symbol && symbol->line)
- {
- *filename = xstrdup (symtab->filename);
- *line = symbol->line;
- }
- else if (symtab)
- {
- *filename = xstrdup (symtab->filename);
- *line = -1;
- }
}
return 0;
}
-/* Print address ADDR on STREAM. USE_LOCAL means the same thing as for
- print_longest. */
-void
-print_address_numeric (CORE_ADDR addr, int use_local, struct ui_file *stream)
-{
- /* Truncate address to the size of a target address, avoiding shifts
- larger or equal than the width of a CORE_ADDR. The local
- variable ADDR_BIT stops the compiler reporting a shift overflow
- when it won't occur. */
- /* NOTE: This assumes that the significant address information is
- kept in the least significant bits of ADDR - the upper bits were
- either zero or sign extended. Should ADDRESS_TO_POINTER() or
- some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
-
- int addr_bit = TARGET_ADDR_BIT;
-
- if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
- addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
- print_longest (stream, 'x', use_local, (ULONGEST) addr);
-}
/* Print address ADDR symbolically on STREAM.
First print it as a number. Then perhaps print
<SYMBOL + OFFSET> after the number. */
void
-print_address (CORE_ADDR addr, struct ui_file *stream)
+print_address (struct gdbarch *gdbarch,
+ CORE_ADDR addr, struct ui_file *stream)
+{
+ fputs_filtered (paddress (gdbarch, addr), stream);
+ print_address_symbolic (gdbarch, addr, stream, asm_demangle, " ");
+}
+
+/* Return a prefix for instruction address:
+ "=> " for current instruction, else " ". */
+
+const char *
+pc_prefix (CORE_ADDR addr)
{
- print_address_numeric (addr, 1, stream);
- print_address_symbolic (addr, stream, asm_demangle, " ");
+ if (has_stack_frames ())
+ {
+ struct frame_info *frame;
+ CORE_ADDR pc;
+
+ frame = get_selected_frame (NULL);
+ if (get_frame_pc_if_available (frame, &pc) && pc == addr)
+ return "=> ";
+ }
+ return " ";
}
/* Print address ADDR symbolically on STREAM. Parameter DEMANGLE
controls whether to print the symbolic name "raw" or demangled.
- Global setting "addressprint" controls whether to print hex address
- or not. */
+ Return non-zero if anything was printed; zero otherwise. */
-void
-print_address_demangle (CORE_ADDR addr, struct ui_file *stream, int do_demangle)
+int
+print_address_demangle (const struct value_print_options *opts,
+ struct gdbarch *gdbarch, CORE_ADDR addr,
+ struct ui_file *stream, int do_demangle)
+{
+ if (opts->addressprint)
+ {
+ fputs_filtered (paddress (gdbarch, addr), stream);
+ print_address_symbolic (gdbarch, addr, stream, do_demangle, " ");
+ }
+ else
+ {
+ return print_address_symbolic (gdbarch, addr, stream, do_demangle, "");
+ }
+ return 1;
+}
+\f
+
+/* Find the address of the instruction that is INST_COUNT instructions before
+ the instruction at ADDR.
+ Since some architectures have variable-length instructions, we can't just
+ simply subtract INST_COUNT * INSN_LEN from ADDR. Instead, we use line
+ number information to locate the nearest known instruction boundary,
+ and disassemble forward from there. If we go out of the symbol range
+ during disassembling, we return the lowest address we've got so far and
+ set the number of instructions read to INST_READ. */
+
+static CORE_ADDR
+find_instruction_backward (struct gdbarch *gdbarch, CORE_ADDR addr,
+ int inst_count, int *inst_read)
{
- if (addr == 0)
+ /* The vector PCS is used to store instruction addresses within
+ a pc range. */
+ CORE_ADDR loop_start, loop_end, p;
+ VEC (CORE_ADDR) *pcs = NULL;
+ struct symtab_and_line sal;
+ struct cleanup *cleanup = make_cleanup (VEC_cleanup (CORE_ADDR), &pcs);
+
+ *inst_read = 0;
+ loop_start = loop_end = addr;
+
+ /* In each iteration of the outer loop, we get a pc range that ends before
+ LOOP_START, then we count and store every instruction address of the range
+ iterated in the loop.
+ If the number of instructions counted reaches INST_COUNT, return the
+ stored address that is located INST_COUNT instructions back from ADDR.
+ If INST_COUNT is not reached, we subtract the number of counted
+ instructions from INST_COUNT, and go to the next iteration. */
+ do
{
- fprintf_filtered (stream, "0");
+ VEC_truncate (CORE_ADDR, pcs, 0);
+ sal = find_pc_sect_line (loop_start, NULL, 1);
+ if (sal.line <= 0)
+ {
+ /* We reach here when line info is not available. In this case,
+ we print a message and just exit the loop. The return value
+ is calculated after the loop. */
+ printf_filtered (_("No line number information available "
+ "for address "));
+ wrap_here (" ");
+ print_address (gdbarch, loop_start - 1, gdb_stdout);
+ printf_filtered ("\n");
+ break;
+ }
+
+ loop_end = loop_start;
+ loop_start = sal.pc;
+
+ /* This loop pushes instruction addresses in the range from
+ LOOP_START to LOOP_END. */
+ for (p = loop_start; p < loop_end;)
+ {
+ VEC_safe_push (CORE_ADDR, pcs, p);
+ p += gdb_insn_length (gdbarch, p);
+ }
+
+ inst_count -= VEC_length (CORE_ADDR, pcs);
+ *inst_read += VEC_length (CORE_ADDR, pcs);
}
- else if (addressprint)
+ while (inst_count > 0);
+
+ /* After the loop, the vector PCS has instruction addresses of the last
+ source line we processed, and INST_COUNT has a negative value.
+ We return the address at the index of -INST_COUNT in the vector for
+ the reason below.
+ Let's assume the following instruction addresses and run 'x/-4i 0x400e'.
+ Line X of File
+ 0x4000
+ 0x4001
+ 0x4005
+ Line Y of File
+ 0x4009
+ 0x400c
+ => 0x400e
+ 0x4011
+ find_instruction_backward is called with INST_COUNT = 4 and expected to
+ return 0x4001. When we reach here, INST_COUNT is set to -1 because
+ it was subtracted by 2 (from Line Y) and 3 (from Line X). The value
+ 4001 is located at the index 1 of the last iterated line (= Line X),
+ which is simply calculated by -INST_COUNT.
+ The case when the length of PCS is 0 means that we reached an area for
+ which line info is not available. In such case, we return LOOP_START,
+ which was the lowest instruction address that had line info. */
+ p = VEC_length (CORE_ADDR, pcs) > 0
+ ? VEC_index (CORE_ADDR, pcs, -inst_count)
+ : loop_start;
+
+ /* INST_READ includes all instruction addresses in a pc range. Need to
+ exclude the beginning part up to the address we're returning. That
+ is, exclude {0x4000} in the example above. */
+ if (inst_count < 0)
+ *inst_read += inst_count;
+
+ do_cleanups (cleanup);
+ return p;
+}
+
+/* Backward read LEN bytes of target memory from address MEMADDR + LEN,
+ placing the results in GDB's memory from MYADDR + LEN. Returns
+ a count of the bytes actually read. */
+
+static int
+read_memory_backward (struct gdbarch *gdbarch,
+ CORE_ADDR memaddr, gdb_byte *myaddr, int len)
+{
+ int errcode;
+ int nread; /* Number of bytes actually read. */
+
+ /* First try a complete read. */
+ errcode = target_read_memory (memaddr, myaddr, len);
+ if (errcode == 0)
{
- print_address_numeric (addr, 1, stream);
- print_address_symbolic (addr, stream, do_demangle, " ");
+ /* Got it all. */
+ nread = len;
}
else
{
- print_address_symbolic (addr, stream, do_demangle, "");
+ /* Loop, reading one byte at a time until we get as much as we can. */
+ memaddr += len;
+ myaddr += len;
+ for (nread = 0; nread < len; ++nread)
+ {
+ errcode = target_read_memory (--memaddr, --myaddr, 1);
+ if (errcode != 0)
+ {
+ /* The read was unsuccessful, so exit the loop. */
+ printf_filtered (_("Cannot access memory at address %s\n"),
+ paddress (gdbarch, memaddr));
+ break;
+ }
+ }
}
+ return nread;
}
-\f
-/* These are the types that $__ will get after an examine command of one
- of these sizes. */
+/* Returns true if X (which is LEN bytes wide) is the number zero. */
+
+static int
+integer_is_zero (const gdb_byte *x, int len)
+{
+ int i = 0;
+
+ while (i < len && x[i] == 0)
+ ++i;
+ return (i == len);
+}
+
+/* Find the start address of a string in which ADDR is included.
+ Basically we search for '\0' and return the next address,
+ but if OPTIONS->PRINT_MAX is smaller than the length of a string,
+ we stop searching and return the address to print characters as many as
+ PRINT_MAX from the string. */
+
+static CORE_ADDR
+find_string_backward (struct gdbarch *gdbarch,
+ CORE_ADDR addr, int count, int char_size,
+ const struct value_print_options *options,
+ int *strings_counted)
+{
+ const int chunk_size = 0x20;
+ gdb_byte *buffer = NULL;
+ struct cleanup *cleanup = NULL;
+ int read_error = 0;
+ int chars_read = 0;
+ int chars_to_read = chunk_size;
+ int chars_counted = 0;
+ int count_original = count;
+ CORE_ADDR string_start_addr = addr;
+
+ gdb_assert (char_size == 1 || char_size == 2 || char_size == 4);
+ buffer = (gdb_byte *) xmalloc (chars_to_read * char_size);
+ cleanup = make_cleanup (xfree, buffer);
+ while (count > 0 && read_error == 0)
+ {
+ int i;
+
+ addr -= chars_to_read * char_size;
+ chars_read = read_memory_backward (gdbarch, addr, buffer,
+ chars_to_read * char_size);
+ chars_read /= char_size;
+ read_error = (chars_read == chars_to_read) ? 0 : 1;
+ /* Searching for '\0' from the end of buffer in backward direction. */
+ for (i = 0; i < chars_read && count > 0 ; ++i, ++chars_counted)
+ {
+ int offset = (chars_to_read - i - 1) * char_size;
+
+ if (integer_is_zero (buffer + offset, char_size)
+ || chars_counted == options->print_max)
+ {
+ /* Found '\0' or reached print_max. As OFFSET is the offset to
+ '\0', we add CHAR_SIZE to return the start address of
+ a string. */
+ --count;
+ string_start_addr = addr + offset + char_size;
+ chars_counted = 0;
+ }
+ }
+ }
+
+ /* Update STRINGS_COUNTED with the actual number of loaded strings. */
+ *strings_counted = count_original - count;
-static struct type *examine_i_type;
+ if (read_error != 0)
+ {
+ /* In error case, STRING_START_ADDR is pointing to the string that
+ was last successfully loaded. Rewind the partially loaded string. */
+ string_start_addr -= chars_counted * char_size;
+ }
-static struct type *examine_b_type;
-static struct type *examine_h_type;
-static struct type *examine_w_type;
-static struct type *examine_g_type;
+ do_cleanups (cleanup);
+ return string_start_addr;
+}
/* Examine data at address ADDR in format FMT.
Fetch it from memory and print on gdb_stdout. */
static void
-do_examine (struct format_data fmt, CORE_ADDR addr)
+do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr)
{
char format = 0;
char size;
struct type *val_type = NULL;
int i;
int maxelts;
+ struct value_print_options opts;
+ int need_to_update_next_address = 0;
+ CORE_ADDR addr_rewound = 0;
format = fmt.format;
size = fmt.size;
count = fmt.count;
+ 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 (format == 'i')
- val_type = examine_i_type;
- else if (size == 'b')
- val_type = examine_b_type;
+ if (size == 'a')
+ {
+ /* Pick the appropriate size for an address. */
+ if (gdbarch_ptr_bit (next_gdbarch) == 64)
+ size = 'g';
+ else if (gdbarch_ptr_bit (next_gdbarch) == 32)
+ size = 'w';
+ else if (gdbarch_ptr_bit (next_gdbarch) == 16)
+ size = 'h';
+ else
+ /* Bad value for gdbarch_ptr_bit. */
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
+ }
+
+ if (size == 'b')
+ val_type = builtin_type (next_gdbarch)->builtin_int8;
else if (size == 'h')
- val_type = examine_h_type;
+ val_type = builtin_type (next_gdbarch)->builtin_int16;
else if (size == 'w')
- val_type = examine_w_type;
+ val_type = builtin_type (next_gdbarch)->builtin_int32;
else if (size == 'g')
- val_type = examine_g_type;
+ 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')
if (format == 's' || format == 'i')
maxelts = 1;
+ get_formatted_print_options (&opts, format);
+
+ if (count < 0)
+ {
+ /* This is the negative repeat count case.
+ We rewind the address based on the given repeat count and format,
+ then examine memory from there in forward direction. */
+
+ count = -count;
+ if (format == 'i')
+ {
+ next_address = find_instruction_backward (gdbarch, addr, count,
+ &count);
+ }
+ else if (format == 's')
+ {
+ next_address = find_string_backward (gdbarch, addr, count,
+ TYPE_LENGTH (val_type),
+ &opts, &count);
+ }
+ else
+ {
+ next_address = addr - count * TYPE_LENGTH (val_type);
+ }
+
+ /* The following call to print_formatted updates next_address in every
+ iteration. In backward case, we store the start address here
+ and update next_address with it before exiting the function. */
+ addr_rewound = (format == 's'
+ ? next_address - TYPE_LENGTH (val_type)
+ : next_address);
+ need_to_update_next_address = 1;
+ }
+
/* Print as many objects as specified in COUNT, at most maxelts per line,
with the address of the next one at the start of each line. */
while (count > 0)
{
QUIT;
- print_address (next_address, gdb_stdout);
+ if (format == 'i')
+ fputs_filtered (pc_prefix (next_address), gdb_stdout);
+ print_address (next_gdbarch, next_address, gdb_stdout);
printf_filtered (":");
for (i = maxelts;
i > 0 && count > 0;
value_free (last_examine_value);
/* The value to be displayed is not fetched greedily.
- Instead, to avoid the posibility of a fetched value not
- being used, its retreval is delayed until the print code
+ Instead, to avoid the possibility of a fetched value not
+ being used, its retrieval is delayed until the print code
uses it. When examining an instruction stream, the
disassembler will perform its own memory fetch using just
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)
release_value (last_examine_value);
- print_formatted (last_examine_value, format, size, gdb_stdout);
+ print_formatted (last_examine_value, size, &opts, gdb_stdout);
+
+ /* Display any branch delay slots following the final insn. */
+ if (format == 'i' && count == 1)
+ count += branch_delay_insns;
}
printf_filtered ("\n");
gdb_flush (gdb_stdout);
}
+
+ if (need_to_update_next_address)
+ next_address = addr_rewound;
}
\f
static void
-validate_format (struct format_data fmt, char *cmdname)
+validate_format (struct format_data fmt, const char *cmdname)
{
if (fmt.size != 0)
- error ("Size letters are meaningless in \"%s\" command.", cmdname);
+ error (_("Size letters are meaningless in \"%s\" command."), cmdname);
if (fmt.count != 1)
- error ("Item count other than 1 is meaningless in \"%s\" command.",
+ error (_("Item count other than 1 is meaningless in \"%s\" command."),
cmdname);
- if (fmt.format == 'i' || fmt.format == 's')
- error ("Format letter \"%c\" is meaningless in \"%s\" command.",
+ if (fmt.format == 'i')
+ error (_("Format letter \"%c\" is meaningless in \"%s\" command."),
fmt.format, cmdname);
}
-/* Evaluate string EXP as an expression in the current language and
- print the resulting value. EXP may contain a format specifier as the
- first argument ("/x myvar" for example, to print myvar in hex).
- */
+/* Parse print command format string into *FMTP and update *EXPP.
+ CMDNAME should name the current command. */
-static void
-print_command_1 (char *exp, int inspect, int voidprint)
+void
+print_command_parse_format (const char **expp, const char *cmdname,
+ struct format_data *fmtp)
{
- struct expression *expr;
- struct cleanup *old_chain = 0;
- char format = 0;
- struct value *val;
- struct format_data fmt;
- int cleanup = 0;
-
- /* Pass inspect flag to the rest of the print routines in a global (sigh). */
- inspect_it = inspect;
+ const char *exp = *expp;
if (exp && *exp == '/')
{
exp++;
- fmt = decode_format (&exp, last_format, 0);
- validate_format (fmt, "print");
- last_format = format = fmt.format;
+ *fmtp = decode_format (&exp, last_format, 0);
+ validate_format (*fmtp, cmdname);
+ last_format = fmtp->format;
}
else
{
- fmt.count = 1;
- fmt.format = 0;
- fmt.size = 0;
+ fmtp->count = 1;
+ fmtp->format = 0;
+ fmtp->size = 0;
+ fmtp->raw = 0;
}
- if (exp && *exp)
- {
- struct type *type;
- expr = parse_expression (exp);
- old_chain = make_cleanup (free_current_contents, &expr);
- cleanup = 1;
- val = evaluate_expression (expr);
- }
- else
- val = access_value_history (0);
+ *expp = exp;
+}
- if (voidprint || (val && value_type (val) &&
- TYPE_CODE (value_type (val)) != TYPE_CODE_VOID))
- {
- int histindex = record_latest_value (val);
+/* Print VAL to console according to *FMTP, including recording it to
+ the history. */
- if (histindex >= 0)
- annotate_value_history_begin (histindex, value_type (val));
- else
- annotate_value_begin (value_type (val));
+void
+print_value (struct value *val, const struct format_data *fmtp)
+{
+ struct value_print_options opts;
+ int histindex = record_latest_value (val);
- if (inspect)
- printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", exp, histindex);
- else if (histindex >= 0)
- printf_filtered ("$%d = ", histindex);
+ annotate_value_history_begin (histindex, value_type (val));
- if (histindex >= 0)
- annotate_value_history_value ();
+ printf_filtered ("$%d = ", histindex);
- print_formatted (val, format, fmt.size, gdb_stdout);
- printf_filtered ("\n");
+ annotate_value_history_value ();
- if (histindex >= 0)
- annotate_value_history_end ();
- else
- annotate_value_end ();
+ get_formatted_print_options (&opts, fmtp->format);
+ opts.raw = fmtp->raw;
+
+ print_formatted (val, fmtp->size, &opts, gdb_stdout);
+ printf_filtered ("\n");
+
+ annotate_value_history_end ();
+}
+
+/* Evaluate string EXP as an expression in the current language and
+ print the resulting value. EXP may contain a format specifier as the
+ first argument ("/x myvar" for example, to print myvar in hex). */
- if (inspect)
- printf_unfiltered ("\") )\030");
+static void
+print_command_1 (const char *exp, int voidprint)
+{
+ struct value *val;
+ struct format_data fmt;
+
+ print_command_parse_format (&exp, "print", &fmt);
+
+ if (exp && *exp)
+ {
+ expression_up expr = parse_expression (exp);
+ val = evaluate_expression (expr.get ());
}
+ else
+ val = access_value_history (0);
- if (cleanup)
- do_cleanups (old_chain);
- inspect_it = 0; /* Reset print routines to normal */
+ if (voidprint || (val && value_type (val) &&
+ TYPE_CODE (value_type (val)) != TYPE_CODE_VOID))
+ print_value (val, &fmt);
}
static void
print_command (char *exp, int from_tty)
{
- print_command_1 (exp, 0, 1);
+ print_command_1 (exp, 1);
}
-/* Same as print, except in epoch, it gets its own window */
+/* Same as print, except it doesn't print void results. */
static void
-inspect_command (char *exp, int from_tty)
+call_command (char *exp, int from_tty)
{
- extern int epoch_interface;
-
- print_command_1 (exp, epoch_interface, 1);
+ print_command_1 (exp, 0);
}
-/* Same as print, except it doesn't print void results. */
+/* Implementation of the "output" command. */
+
static void
-call_command (char *exp, int from_tty)
+output_command (char *exp, int from_tty)
{
- print_command_1 (exp, 0, 0);
+ output_command_const (exp, from_tty);
}
+/* Like output_command, but takes a const string as argument. */
+
void
-output_command (char *exp, int from_tty)
+output_command_const (const char *exp, int from_tty)
{
- struct expression *expr;
- struct cleanup *old_chain;
char format = 0;
struct value *val;
struct format_data fmt;
+ struct value_print_options opts;
+
+ fmt.size = 0;
+ fmt.raw = 0;
if (exp && *exp == '/')
{
format = fmt.format;
}
- expr = parse_expression (exp);
- old_chain = make_cleanup (free_current_contents, &expr);
+ expression_up expr = parse_expression (exp);
- val = evaluate_expression (expr);
+ val = evaluate_expression (expr.get ());
annotate_value_begin (value_type (val));
- print_formatted (val, format, fmt.size, gdb_stdout);
+ get_formatted_print_options (&opts, format);
+ opts.raw = fmt.raw;
+ print_formatted (val, fmt.size, &opts, gdb_stdout);
annotate_value_end ();
wrap_here ("");
gdb_flush (gdb_stdout);
-
- do_cleanups (old_chain);
}
static void
set_command (char *exp, int from_tty)
{
- struct expression *expr = parse_expression (exp);
- struct cleanup *old_chain =
- make_cleanup (free_current_contents, &expr);
- evaluate_expression (expr);
- do_cleanups (old_chain);
+ expression_up expr = parse_expression (exp);
+
+ if (expr->nelts >= 1)
+ switch (expr->elts[0].opcode)
+ {
+ case UNOP_PREINCREMENT:
+ case UNOP_POSTINCREMENT:
+ case UNOP_PREDECREMENT:
+ case UNOP_POSTDECREMENT:
+ case BINOP_ASSIGN:
+ case BINOP_ASSIGN_MODIFY:
+ case BINOP_COMMA:
+ break;
+ default:
+ warning
+ (_("Expression is not an assignment (and might have no effect)"));
+ }
+
+ evaluate_expression (expr.get ());
}
static void
struct minimal_symbol *msymbol;
struct objfile *objfile;
struct obj_section *osect;
- asection *sect;
CORE_ADDR addr, sect_addr;
int matches = 0;
unsigned int offset;
if (!arg)
- error_no_arg ("address");
+ error_no_arg (_("address"));
addr = parse_and_eval_address (arg);
ALL_OBJSECTIONS (objfile, osect)
{
- sect = osect->the_bfd_section;
- sect_addr = overlay_mapped_address (addr, sect);
+ /* Only process each object file once, even if there's a separate
+ debug file. */
+ if (objfile->separate_debug_objfile_backlink)
+ continue;
- if (osect->addr <= sect_addr && sect_addr < osect->endaddr &&
- (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, sect)))
+ sect_addr = overlay_mapped_address (addr, osect);
+
+ if (obj_section_addr (osect) <= sect_addr
+ && sect_addr < obj_section_endaddr (osect)
+ && (msymbol
+ = lookup_minimal_symbol_by_pc_section (sect_addr, osect).minsym))
{
+ const char *obj_name, *mapped, *sec_name, *msym_name;
+ char *loc_string;
+ struct cleanup *old_chain;
+
matches = 1;
- offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol);
+ offset = sect_addr - MSYMBOL_VALUE_ADDRESS (objfile, msymbol);
+ mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped");
+ sec_name = osect->the_bfd_section->name;
+ msym_name = MSYMBOL_PRINT_NAME (msymbol);
+
+ /* Don't print the offset if it is zero.
+ We assume there's no need to handle i18n of "sym + offset". */
if (offset)
- printf_filtered ("%s + %u in ",
- SYMBOL_PRINT_NAME (msymbol), offset);
+ loc_string = xstrprintf ("%s + %u", msym_name, offset);
else
- printf_filtered ("%s in ",
- SYMBOL_PRINT_NAME (msymbol));
- if (pc_in_unmapped_range (addr, sect))
- printf_filtered ("load address range of ");
- if (section_is_overlay (sect))
- printf_filtered ("%s overlay ",
- section_is_mapped (sect) ? "mapped" : "unmapped");
- printf_filtered ("section %s", sect->name);
- printf_filtered ("\n");
+ loc_string = xstrprintf ("%s", msym_name);
+
+ /* Use a cleanup to free loc_string in case the user quits
+ a pagination request inside printf_filtered. */
+ old_chain = make_cleanup (xfree, loc_string);
+
+ gdb_assert (osect->objfile && objfile_name (osect->objfile));
+ obj_name = objfile_name (osect->objfile);
+
+ if (MULTI_OBJFILE_P ())
+ if (pc_in_unmapped_range (addr, osect))
+ if (section_is_overlay (osect))
+ printf_filtered (_("%s in load address range of "
+ "%s overlay section %s of %s\n"),
+ loc_string, mapped, sec_name, obj_name);
+ else
+ printf_filtered (_("%s in load address range of "
+ "section %s of %s\n"),
+ loc_string, sec_name, obj_name);
+ else
+ if (section_is_overlay (osect))
+ printf_filtered (_("%s in %s overlay section %s of %s\n"),
+ loc_string, mapped, sec_name, obj_name);
+ else
+ printf_filtered (_("%s in section %s of %s\n"),
+ loc_string, sec_name, obj_name);
+ else
+ if (pc_in_unmapped_range (addr, osect))
+ if (section_is_overlay (osect))
+ printf_filtered (_("%s in load address range of %s overlay "
+ "section %s\n"),
+ loc_string, mapped, sec_name);
+ else
+ printf_filtered (_("%s in load address range of section %s\n"),
+ loc_string, sec_name);
+ else
+ if (section_is_overlay (osect))
+ printf_filtered (_("%s in %s overlay section %s\n"),
+ loc_string, mapped, sec_name);
+ else
+ printf_filtered (_("%s in section %s\n"),
+ loc_string, sec_name);
+
+ do_cleanups (old_chain);
}
}
if (matches == 0)
- printf_filtered ("No symbol matches %s.\n", arg);
+ printf_filtered (_("No symbol matches %s.\n"), arg);
}
static void
address_info (char *exp, int from_tty)
{
+ struct gdbarch *gdbarch;
+ int regno;
struct symbol *sym;
- struct minimal_symbol *msymbol;
+ struct bound_minimal_symbol msymbol;
long val;
- long basereg;
- asection *section;
- CORE_ADDR load_addr;
- int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero
- if exp is a field of `this'. */
+ struct obj_section *section;
+ CORE_ADDR load_addr, context_pc = 0;
+ struct field_of_this_result is_a_field_of_this;
if (exp == 0)
- error ("Argument required.");
+ error (_("Argument required."));
- sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN,
- &is_a_field_of_this, (struct symtab **) NULL);
+ sym = lookup_symbol (exp, get_selected_block (&context_pc), VAR_DOMAIN,
+ &is_a_field_of_this).symbol;
if (sym == NULL)
{
- if (is_a_field_of_this)
+ if (is_a_field_of_this.type != NULL)
{
printf_filtered ("Symbol \"");
fprintf_symbol_filtered (gdb_stdout, exp,
return;
}
- msymbol = lookup_minimal_symbol (exp, NULL, NULL);
+ msymbol = lookup_bound_minimal_symbol (exp);
- if (msymbol != NULL)
+ if (msymbol.minsym != NULL)
{
- load_addr = SYMBOL_VALUE_ADDRESS (msymbol);
+ struct objfile *objfile = msymbol.objfile;
+
+ gdbarch = get_objfile_arch (objfile);
+ load_addr = BMSYMBOL_VALUE_ADDRESS (msymbol);
printf_filtered ("Symbol \"");
fprintf_symbol_filtered (gdb_stdout, exp,
current_language->la_language, DMGL_ANSI);
printf_filtered ("\" is at ");
- print_address_numeric (load_addr, 1, gdb_stdout);
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
printf_filtered (" in a file compiled without debugging");
- section = SYMBOL_BFD_SECTION (msymbol);
+ section = MSYMBOL_OBJ_SECTION (objfile, msymbol.minsym);
if (section_is_overlay (section))
{
load_addr = overlay_unmapped_address (load_addr, section);
printf_filtered (",\n -- loaded at ");
- print_address_numeric (load_addr, 1, gdb_stdout);
- printf_filtered (" in overlay section %s", section->name);
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
+ printf_filtered (" in overlay section %s",
+ section->the_bfd_section->name);
}
printf_filtered (".\n");
}
else
- error ("No symbol \"%s\" in current context.", exp);
+ error (_("No symbol \"%s\" in current context."), exp);
return;
}
printf_filtered ("Symbol \"");
- fprintf_symbol_filtered (gdb_stdout, DEPRECATED_SYMBOL_NAME (sym),
+ fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym),
current_language->la_language, DMGL_ANSI);
printf_filtered ("\" is ");
val = SYMBOL_VALUE (sym);
- basereg = SYMBOL_BASEREG (sym);
- section = SYMBOL_BFD_SECTION (sym);
+ if (SYMBOL_OBJFILE_OWNED (sym))
+ section = SYMBOL_OBJ_SECTION (symbol_objfile (sym), sym);
+ else
+ section = NULL;
+ gdbarch = symbol_arch (sym);
+
+ if (SYMBOL_COMPUTED_OPS (sym) != NULL)
+ {
+ SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc,
+ gdb_stdout);
+ printf_filtered (".\n");
+ return;
+ }
switch (SYMBOL_CLASS (sym))
{
case LOC_LABEL:
printf_filtered ("a label at address ");
- print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym),
- 1, gdb_stdout);
+ load_addr = SYMBOL_VALUE_ADDRESS (sym);
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
if (section_is_overlay (section))
{
load_addr = overlay_unmapped_address (load_addr, section);
printf_filtered (",\n -- loaded at ");
- print_address_numeric (load_addr, 1, gdb_stdout);
- printf_filtered (" in overlay section %s", section->name);
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
+ printf_filtered (" in overlay section %s",
+ section->the_bfd_section->name);
}
break;
case LOC_COMPUTED:
- case LOC_COMPUTED_ARG:
- /* FIXME: cagney/2004-01-26: It should be possible to
- unconditionally call the SYMBOL_OPS method when available.
- 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_OPS (sym)->describe_location (sym, gdb_stdout);
- break;
+ gdb_assert_not_reached (_("LOC_COMPUTED variable missing a method"));
case LOC_REGISTER:
- printf_filtered ("a variable in register %s", REGISTER_NAME (val));
+ /* GDBARCH is the architecture associated with the objfile the symbol
+ is defined in; the target architecture may be different, and may
+ provide additional registers. However, we do not know the target
+ architecture at this point. We assume the objfile architecture
+ will contain all the standard registers that occur in debug info
+ in that objfile. */
+ regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch);
+
+ if (SYMBOL_IS_ARGUMENT (sym))
+ printf_filtered (_("an argument in register %s"),
+ gdbarch_register_name (gdbarch, regno));
+ else
+ printf_filtered (_("a variable in register %s"),
+ gdbarch_register_name (gdbarch, regno));
break;
case LOC_STATIC:
- printf_filtered ("static storage at address ");
- print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym),
- 1, gdb_stdout);
- if (section_is_overlay (section))
- {
- load_addr = overlay_unmapped_address (load_addr, section);
- printf_filtered (",\n -- loaded at ");
- print_address_numeric (load_addr, 1, gdb_stdout);
- printf_filtered (" in overlay section %s", section->name);
- }
- break;
-
- case LOC_INDIRECT:
- printf_filtered ("external global (indirect addressing), at address *(");
- print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym),
- 1, gdb_stdout);
- printf_filtered (")");
+ printf_filtered (_("static storage at address "));
+ load_addr = SYMBOL_VALUE_ADDRESS (sym);
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
if (section_is_overlay (section))
{
load_addr = overlay_unmapped_address (load_addr, section);
- printf_filtered (",\n -- loaded at ");
- print_address_numeric (load_addr, 1, gdb_stdout);
- printf_filtered (" in overlay section %s", section->name);
+ printf_filtered (_(",\n -- loaded at "));
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
+ printf_filtered (_(" in overlay section %s"),
+ section->the_bfd_section->name);
}
break;
- case LOC_REGPARM:
- printf_filtered ("an argument in register %s", REGISTER_NAME (val));
- break;
-
case LOC_REGPARM_ADDR:
- printf_filtered ("address of an argument in register %s", REGISTER_NAME (val));
+ /* Note comment at LOC_REGISTER. */
+ regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch);
+ printf_filtered (_("address of an argument in register %s"),
+ gdbarch_register_name (gdbarch, regno));
break;
case LOC_ARG:
- printf_filtered ("an argument at offset %ld", val);
- break;
-
- case LOC_LOCAL_ARG:
- printf_filtered ("an argument at frame offset %ld", val);
+ printf_filtered (_("an argument at offset %ld"), val);
break;
case LOC_LOCAL:
- printf_filtered ("a local variable at frame offset %ld", val);
+ printf_filtered (_("a local variable at frame offset %ld"), val);
break;
case LOC_REF_ARG:
- printf_filtered ("a reference argument at offset %ld", val);
- break;
-
- case LOC_BASEREG:
- printf_filtered ("a variable at offset %ld from register %s",
- val, REGISTER_NAME (basereg));
- break;
-
- case LOC_BASEREG_ARG:
- printf_filtered ("an argument at offset %ld from register %s",
- val, REGISTER_NAME (basereg));
+ printf_filtered (_("a reference argument at offset %ld"), val);
break;
case LOC_TYPEDEF:
- printf_filtered ("a typedef");
+ printf_filtered (_("a typedef"));
break;
case LOC_BLOCK:
- printf_filtered ("a function at address ");
- print_address_numeric (load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)),
- 1, gdb_stdout);
+ printf_filtered (_("a function at address "));
+ load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
if (section_is_overlay (section))
{
load_addr = overlay_unmapped_address (load_addr, section);
- printf_filtered (",\n -- loaded at ");
- print_address_numeric (load_addr, 1, gdb_stdout);
- printf_filtered (" in overlay section %s", section->name);
+ printf_filtered (_(",\n -- loaded at "));
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
+ printf_filtered (_(" in overlay section %s"),
+ section->the_bfd_section->name);
}
break;
case LOC_UNRESOLVED:
{
- struct minimal_symbol *msym;
+ struct bound_minimal_symbol msym;
- msym = lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym), NULL, NULL);
- if (msym == NULL)
+ msym = lookup_minimal_symbol_and_objfile (SYMBOL_LINKAGE_NAME (sym));
+ if (msym.minsym == NULL)
printf_filtered ("unresolved");
else
{
- section = SYMBOL_BFD_SECTION (msym);
- printf_filtered ("static storage at address ");
- print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (msym),
- 1, gdb_stdout);
- if (section_is_overlay (section))
+ section = MSYMBOL_OBJ_SECTION (msym.objfile, msym.minsym);
+
+ if (section
+ && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0)
+ {
+ load_addr = MSYMBOL_VALUE_RAW_ADDRESS (msym.minsym);
+ printf_filtered (_("a thread-local variable at offset %s "
+ "in the thread-local storage for `%s'"),
+ paddress (gdbarch, load_addr),
+ objfile_name (section->objfile));
+ }
+ else
{
- load_addr = overlay_unmapped_address (load_addr, section);
- printf_filtered (",\n -- loaded at ");
- print_address_numeric (load_addr, 1, gdb_stdout);
- printf_filtered (" in overlay section %s", section->name);
+ load_addr = BMSYMBOL_VALUE_ADDRESS (msym);
+ printf_filtered (_("static storage at address "));
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
+ if (section_is_overlay (section))
+ {
+ load_addr = overlay_unmapped_address (load_addr, section);
+ printf_filtered (_(",\n -- loaded at "));
+ fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
+ printf_filtered (_(" in overlay section %s"),
+ section->the_bfd_section->name);
+ }
}
}
}
break;
- case LOC_HP_THREAD_LOCAL_STATIC:
- printf_filtered (
- "a thread-local variable at offset %ld from the thread base register %s",
- val, REGISTER_NAME (basereg));
- break;
-
case LOC_OPTIMIZED_OUT:
- printf_filtered ("optimized out");
+ printf_filtered (_("optimized out"));
break;
default:
- printf_filtered ("of unknown (botched) type");
+ printf_filtered (_("of unknown (botched) type"));
break;
}
printf_filtered (".\n");
}
\f
-void
+
+static void
x_command (char *exp, int from_tty)
{
- struct expression *expr;
struct format_data fmt;
struct cleanup *old_chain;
struct value *val;
- fmt.format = last_format;
+ fmt.format = last_format ? last_format : 'x';
fmt.size = last_size;
fmt.count = 1;
+ fmt.raw = 0;
if (exp && *exp == '/')
{
- exp++;
- fmt = decode_format (&exp, last_format, last_size);
+ const char *tmp = exp + 1;
+
+ fmt = decode_format (&tmp, last_format, last_size);
+ exp = (char *) tmp;
}
/* If we have an expression, evaluate it and use it as the address. */
if (exp != 0 && *exp != 0)
{
- expr = parse_expression (exp);
- /* Cause expression not to be there any more
- if this command is repeated with Newline.
- But don't clobber a user-defined command's definition. */
+ expression_up expr = parse_expression (exp);
+ /* Cause expression not to be there any more if this command is
+ repeated with Newline. But don't clobber a user-defined
+ command's definition. */
if (from_tty)
*exp = 0;
- old_chain = make_cleanup (free_current_contents, &expr);
- val = evaluate_expression (expr);
+ val = evaluate_expression (expr.get ());
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' && */
TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC
&& VALUE_LVAL (val) == lval_memory)
- next_address = VALUE_ADDRESS (val);
+ next_address = value_address (val);
else
next_address = value_as_address (val);
- do_cleanups (old_chain);
+
+ next_gdbarch = expr->gdbarch;
}
- do_examine (fmt, next_address);
+ if (!next_gdbarch)
+ error_no_arg (_("starting display address"));
- /* If the examine succeeds, we remember its size and format for next time. */
- last_size = fmt.size;
+ do_examine (fmt, next_gdbarch, next_address);
+
+ /* If the examine succeeds, we remember its size and format for next
+ 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
value_from_pointer (pointer_type,
last_examine_address));
- /* Make contents of last address examined available to the user as $__. */
- /* If the last value has not been fetched from memory then don't
- fetch it now - instead mark it by voiding the $__ variable. */
+ /* Make contents of last address examined available to the user
+ as $__. If the last value has not been fetched from memory
+ then don't fetch it now; instead mark it by voiding the $__
+ variable. */
if (value_lazy (last_examine_value))
- set_internalvar (lookup_internalvar ("__"),
- allocate_value (builtin_type_void));
+ clear_internalvar (lookup_internalvar ("__"));
else
set_internalvar (lookup_internalvar ("__"), last_examine_value);
}
Specify the expression. */
static void
-display_command (char *exp, int from_tty)
+display_command (char *arg, int from_tty)
{
struct format_data fmt;
- struct expression *expr;
- struct display *new;
- int display_it = 1;
-
-#if defined(TUI)
- /* NOTE: cagney/2003-02-13 The `tui_active' was previously
- `tui_version'. */
- if (tui_active && exp != NULL && *exp == '$')
- display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE);
-#endif
+ struct display *newobj;
+ const char *exp = arg;
- if (display_it)
+ if (exp == 0)
{
- if (exp == 0)
- {
- do_displays ();
- return;
- }
-
- if (*exp == '/')
- {
- exp++;
- fmt = decode_format (&exp, 0, 0);
- if (fmt.size && fmt.format == 0)
- fmt.format = 'x';
- if (fmt.format == 'i' || fmt.format == 's')
- fmt.size = 'b';
- }
- else
- {
- fmt.format = 0;
- fmt.size = 0;
- fmt.count = 0;
- }
+ do_displays ();
+ return;
+ }
- innermost_block = 0;
- expr = parse_expression (exp);
+ if (*exp == '/')
+ {
+ exp++;
+ fmt = decode_format (&exp, 0, 0);
+ if (fmt.size && fmt.format == 0)
+ fmt.format = 'x';
+ if (fmt.format == 'i' || fmt.format == 's')
+ fmt.size = 'b';
+ }
+ else
+ {
+ fmt.format = 0;
+ fmt.size = 0;
+ fmt.count = 0;
+ fmt.raw = 0;
+ }
- new = (struct display *) xmalloc (sizeof (struct display));
+ innermost_block = NULL;
+ expression_up expr = parse_expression (exp);
- new->exp = expr;
- new->block = innermost_block;
- new->next = display_chain;
- new->number = ++display_number;
- new->format = fmt;
- new->enabled_p = 1;
- display_chain = new;
+ newobj = new display ();
- if (from_tty && target_has_execution)
- do_one_display (new);
+ newobj->exp_string = xstrdup (exp);
+ newobj->exp = std::move (expr);
+ newobj->block = innermost_block;
+ newobj->pspace = current_program_space;
+ newobj->number = ++display_number;
+ newobj->format = fmt;
+ newobj->enabled_p = 1;
+ newobj->next = NULL;
- dont_repeat ();
+ if (display_chain == NULL)
+ display_chain = newobj;
+ else
+ {
+ struct display *last;
+
+ for (last = display_chain; last->next != NULL; last = last->next)
+ ;
+ last->next = newobj;
}
+
+ if (from_tty)
+ do_one_display (newobj);
+
+ dont_repeat ();
}
static void
free_display (struct display *d)
{
- xfree (d->exp);
- xfree (d);
+ xfree (d->exp_string);
+ delete d;
}
-/* Clear out the display_chain.
- Done when new symtabs are loaded, since this invalidates
- the types stored in many expressions. */
+/* Clear out the display_chain. Done when new symtabs are loaded,
+ since this invalidates the types stored in many expressions. */
void
clear_displays (void)
while ((d = display_chain) != NULL)
{
- xfree (d->exp);
display_chain = d->next;
- xfree (d);
+ free_display (d);
}
}
-/* Delete the auto-display number NUM. */
+/* Delete the auto-display DISPLAY. */
static void
-delete_display (int num)
+delete_display (struct display *display)
{
- struct display *d1, *d;
+ struct display *d;
- if (!display_chain)
- error ("No display number %d.", num);
+ gdb_assert (display != NULL);
- if (display_chain->number == num)
- {
- d1 = display_chain;
- display_chain = d1->next;
- free_display (d1);
- }
- else
- for (d = display_chain;; d = d->next)
+ if (display_chain == display)
+ display_chain = display->next;
+
+ ALL_DISPLAYS (d)
+ if (d->next == display)
{
- if (d->next == 0)
- error ("No display number %d.", num);
- if (d->next->number == num)
- {
- d1 = d->next;
- d->next = d1->next;
- free_display (d1);
- break;
- }
+ d->next = display->next;
+ break;
}
+
+ free_display (display);
}
-/* Delete some values from the auto-display chain.
- Specify the element numbers. */
+/* Call FUNCTION on each of the displays whose numbers are given in
+ ARGS. DATA is passed unmodified to FUNCTION. */
static void
-undisplay_command (char *args, int from_tty)
+map_display_numbers (char *args,
+ void (*function) (struct display *,
+ void *),
+ void *data)
{
- char *p = args;
- char *p1;
int num;
- if (args == 0)
+ if (args == NULL)
+ error_no_arg (_("one or more display numbers"));
+
+ number_or_range_parser parser (args);
+
+ while (!parser.finished ())
{
- if (query ("Delete all auto-display expressions? "))
- clear_displays ();
- dont_repeat ();
- return;
+ const char *p = parser.cur_tok ();
+
+ num = parser.get_number ();
+ if (num == 0)
+ warning (_("bad display number at or near '%s'"), p);
+ else
+ {
+ struct display *d, *tmp;
+
+ ALL_DISPLAYS_SAFE (d, tmp)
+ if (d->number == num)
+ break;
+ if (d == NULL)
+ printf_unfiltered (_("No display number %d.\n"), num);
+ else
+ function (d, data);
+ }
}
+}
- while (*p)
- {
- p1 = p;
- while (*p1 >= '0' && *p1 <= '9')
- p1++;
- if (*p1 && *p1 != ' ' && *p1 != '\t')
- error ("Arguments must be display numbers.");
+/* Callback for map_display_numbers, that deletes a display. */
- num = atoi (p);
+static void
+do_delete_display (struct display *d, void *data)
+{
+ delete_display (d);
+}
- delete_display (num);
+/* "undisplay" command. */
- p = p1;
- while (*p == ' ' || *p == '\t')
- p++;
+static void
+undisplay_command (char *args, int from_tty)
+{
+ if (args == NULL)
+ {
+ if (query (_("Delete all auto-display expressions? ")))
+ clear_displays ();
+ dont_repeat ();
+ return;
}
+
+ map_display_numbers (args, do_delete_display, NULL);
dont_repeat ();
}
/* 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 ())
+ {
+ d->exp.reset ();
+ d->block = NULL;
+ }
+
+ if (d->exp == NULL)
+ {
+
+ TRY
+ {
+ innermost_block = NULL;
+ d->exp = parse_expression (d->exp_string);
+ d->block = innermost_block;
+ }
+ CATCH (ex, RETURN_MASK_ALL)
+ {
+ /* Can't re-parse the expression. Disable this display item. */
+ d->enabled_p = 0;
+ warning (_("Unable to display \"%s\": %s"),
+ d->exp_string, ex.message);
+ return;
+ }
+ END_CATCH
+ }
+
if (d->block)
- within_current_scope = contained_in (get_selected_block (0), d->block);
+ {
+ if (d->pspace == current_program_space)
+ within_current_scope = contained_in (get_selected_block (0), d->block);
+ else
+ within_current_scope = 0;
+ }
else
within_current_scope = 1;
if (!within_current_scope)
return;
- current_display_number = d->number;
+ scoped_restore save_display_number
+ = make_scoped_restore (¤t_display_number, d->number);
annotate_display_begin ();
printf_filtered ("%d", d->number);
printf_filtered (": ");
if (d->format.size)
{
- CORE_ADDR addr;
- struct value *val;
annotate_display_format ();
annotate_display_expression ();
- print_expression (d->exp, gdb_stdout);
+ puts_filtered (d->exp_string);
annotate_display_expression_end ();
- if (d->format.count != 1)
+ if (d->format.count != 1 || d->format.format == 'i')
printf_filtered ("\n");
else
printf_filtered (" ");
- val = evaluate_expression (d->exp);
- addr = value_as_address (val);
- if (d->format.format == 'i')
- addr = ADDR_BITS_REMOVE (addr);
-
annotate_display_value ();
- do_examine (d->format, addr);
+ TRY
+ {
+ struct value *val;
+ CORE_ADDR addr;
+
+ val = evaluate_expression (d->exp.get ());
+ addr = value_as_address (val);
+ if (d->format.format == 'i')
+ addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr);
+ do_examine (d->format, d->exp->gdbarch, addr);
+ }
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered (gdb_stdout, _("<error: %s>\n"), ex.message);
+ }
+ END_CATCH
}
else
{
+ struct value_print_options opts;
+
annotate_display_format ();
if (d->format.format)
annotate_display_expression ();
- print_expression (d->exp, gdb_stdout);
+ puts_filtered (d->exp_string);
annotate_display_expression_end ();
printf_filtered (" = ");
annotate_display_expression ();
- print_formatted (evaluate_expression (d->exp),
- d->format.format, d->format.size, gdb_stdout);
+ get_formatted_print_options (&opts, d->format.format);
+ opts.raw = d->format.raw;
+
+ TRY
+ {
+ struct value *val;
+
+ val = evaluate_expression (d->exp.get ());
+ print_formatted (val, d->format.size, &opts, gdb_stdout);
+ }
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message);
+ }
+ END_CATCH
+
printf_filtered ("\n");
}
annotate_display_end ();
gdb_flush (gdb_stdout);
- current_display_number = -1;
}
/* Display all of the values on the auto-display chain which can be
d->enabled_p = 0;
return;
}
- printf_unfiltered ("No display number %d.\n", num);
+ printf_unfiltered (_("No display number %d.\n"), num);
}
void
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;
struct display *d;
if (!display_chain)
- printf_unfiltered ("There are no auto-display expressions now.\n");
+ printf_unfiltered (_("There are no auto-display expressions now.\n"));
else
- printf_filtered ("Auto-display expressions now in effect:\n\
-Num Enb Expression\n");
+ printf_filtered (_("Auto-display expressions now in effect:\n\
+Num Enb Expression\n"));
for (d = display_chain; d; d = d->next)
{
d->format.format);
else if (d->format.format)
printf_filtered ("/%c ", d->format.format);
- print_expression (d->exp, gdb_stdout);
+ puts_filtered (d->exp_string);
if (d->block && !contained_in (get_selected_block (0), d->block))
- printf_filtered (" (cannot be evaluated in the current context)");
+ printf_filtered (_(" (cannot be evaluated in the current context)"));
printf_filtered ("\n");
gdb_flush (gdb_stdout);
}
}
+/* Callback fo map_display_numbers, that enables or disables the
+ passed in display D. */
+
static void
-enable_display (char *args, int from_tty)
+do_enable_disable_display (struct display *d, void *data)
{
- char *p = args;
- char *p1;
- int num;
- struct display *d;
+ d->enabled_p = *(int *) data;
+}
- if (p == 0)
+/* Implamentation of both the "disable display" and "enable display"
+ commands. ENABLE decides what to do. */
+
+static void
+enable_disable_display_command (char *args, int from_tty, int enable)
+{
+ if (args == NULL)
{
- for (d = display_chain; d; d = d->next)
- d->enabled_p = 1;
+ struct display *d;
+
+ ALL_DISPLAYS (d)
+ d->enabled_p = enable;
+ return;
}
- else
- while (*p)
- {
- p1 = p;
- while (*p1 >= '0' && *p1 <= '9')
- p1++;
- if (*p1 && *p1 != ' ' && *p1 != '\t')
- error ("Arguments must be display numbers.");
- num = atoi (p);
+ map_display_numbers (args, do_enable_disable_display, &enable);
+}
- for (d = display_chain; d; d = d->next)
- if (d->number == num)
- {
- d->enabled_p = 1;
- goto win;
- }
- printf_unfiltered ("No display number %d.\n", num);
- win:
- p = p1;
- while (*p == ' ' || *p == '\t')
- p++;
- }
+/* The "enable display" command. */
+
+static void
+enable_display_command (char *args, int from_tty)
+{
+ enable_disable_display_command (args, from_tty, 1);
}
+/* The "disable display" command. */
+
static void
disable_display_command (char *args, int from_tty)
{
- char *p = args;
- char *p1;
+ enable_disable_display_command (args, from_tty, 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
+ obstack_free'd when a shared library is unloaded.
+ Clear pointers that are about to become dangling.
+ Both .exp and .block fields will be restored next time we need to display
+ an item by re-parsing .exp_string field in the new execution context. */
+
+static void
+clear_dangling_display_expressions (struct objfile *objfile)
+{
struct display *d;
+ struct program_space *pspace;
- if (p == 0)
+ /* With no symbol file we cannot have a block or expression from it. */
+ if (objfile == NULL)
+ return;
+ pspace = objfile->pspace;
+ if (objfile->separate_debug_objfile_backlink)
{
- for (d = display_chain; d; d = d->next)
- d->enabled_p = 0;
+ objfile = objfile->separate_debug_objfile_backlink;
+ gdb_assert (objfile->pspace == pspace);
}
- else
- while (*p)
- {
- p1 = p;
- while (*p1 >= '0' && *p1 <= '9')
- p1++;
- if (*p1 && *p1 != ' ' && *p1 != '\t')
- error ("Arguments must be display numbers.");
- disable_display (atoi (p));
+ for (d = display_chain; d != NULL; d = d->next)
+ {
+ if (d->pspace != pspace)
+ continue;
- p = p1;
- while (*p == ' ' || *p == '\t')
- p++;
+ if (lookup_objfile_from_block (d->block) == objfile
+ || (d->exp != NULL && exp_uses_objfile (d->exp.get (), objfile)))
+ {
+ d->exp.reset ();
+ d->block = NULL;
}
+ }
}
\f
-/* Print the value in stack frame FRAME of a variable
- specified by a struct symbol. */
+/* Print the value in stack frame FRAME of a variable specified by a
+ struct symbol. NAME is the name to print; if NULL then VAR's print
+ name will be used. STREAM is the ui_file on which to print the
+ value. INDENT specifies the number of indent levels to print
+ before printing the variable name.
+
+ This function invalidates FRAME. */
void
-print_variable_value (struct symbol *var, struct frame_info *frame,
- struct ui_file *stream)
+print_variable_and_value (const char *name, struct symbol *var,
+ struct frame_info *frame,
+ struct ui_file *stream, int indent)
{
- struct value *val = read_var_value (var, frame);
- value_print (val, stream, 0, Val_pretty_default);
+ if (!name)
+ name = SYMBOL_PRINT_NAME (var);
+
+ fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name);
+ TRY
+ {
+ struct value *val;
+ struct value_print_options opts;
+
+ /* READ_VAR_VALUE needs a block in order to deal with non-local
+ references (i.e. to handle nested functions). In this context, we
+ print variables that are local to this frame, so we can avoid passing
+ a block to it. */
+ val = read_var_value (var, NULL, frame);
+ get_user_print_options (&opts);
+ opts.deref_ref = 1;
+ common_val_print (val, stream, indent, &opts, current_language);
+
+ /* common_val_print invalidates FRAME when a pretty printer calls inferior
+ function. */
+ frame = NULL;
+ }
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered(stream, "<error reading variable %s (%s)>", name,
+ except.message);
+ }
+ END_CATCH
+
+ fprintf_filtered (stream, "\n");
}
+/* Subroutine of ui_printf to simplify it.
+ Print VALUE to STREAM using FORMAT.
+ VALUE is a C-style string on the target. */
+
static void
-printf_command (char *arg, int from_tty)
+printf_c_string (struct ui_file *stream, const char *format,
+ struct value *value)
{
- char *f = NULL;
- char *s = arg;
- char *string = NULL;
- struct value **val_args;
- char *substrings;
- char *current_substring;
- int nargs = 0;
- int allocated_args = 20;
- struct cleanup *old_cleanups;
+ gdb_byte *str;
+ CORE_ADDR tem;
+ int j;
- val_args = (struct value **) xmalloc (allocated_args
- * sizeof (struct value *));
- old_cleanups = make_cleanup (free_current_contents, &val_args);
+ tem = value_as_address (value);
- if (s == 0)
- error_no_arg ("format-control string and values to print");
+ /* This is a %s argument. Find the length of the string. */
+ for (j = 0;; j++)
+ {
+ gdb_byte c;
- /* Skip white space before format string */
- while (*s == ' ' || *s == '\t')
- s++;
+ QUIT;
+ read_memory (tem + j, &c, 1);
+ if (c == 0)
+ break;
+ }
- /* A format string should follow, enveloped in double quotes */
- if (*s++ != '"')
- error ("Bad format string, missing '\"'.");
+ /* Copy the string contents into a string inside GDB. */
+ str = (gdb_byte *) alloca (j + 1);
+ if (j != 0)
+ read_memory (tem, str, j);
+ str[j] = 0;
- /* Parse the format-control string and copy it into the string STRING,
- processing some kinds of escape sequence. */
+ fprintf_filtered (stream, format, (char *) str);
+}
- f = string = (char *) alloca (strlen (s) + 1);
+/* Subroutine of ui_printf to simplify it.
+ Print VALUE to STREAM using FORMAT.
+ VALUE is a wide C-style string on the target. */
- while (*s != '"')
+static void
+printf_wide_c_string (struct ui_file *stream, const char *format,
+ struct value *value)
+{
+ gdb_byte *str;
+ CORE_ADDR tem;
+ int j;
+ struct gdbarch *gdbarch = get_type_arch (value_type (value));
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+ struct type *wctype = lookup_typename (current_language, gdbarch,
+ "wchar_t", NULL, 0);
+ int wcwidth = TYPE_LENGTH (wctype);
+ gdb_byte *buf = (gdb_byte *) alloca (wcwidth);
+ struct obstack output;
+ struct cleanup *inner_cleanup;
+
+ tem = value_as_address (value);
+
+ /* This is a %s argument. Find the length of the string. */
+ for (j = 0;; j += wcwidth)
{
- int c = *s++;
- switch (c)
- {
- case '\0':
- error ("Bad format string, non-terminated '\"'.");
+ QUIT;
+ read_memory (tem + j, buf, wcwidth);
+ if (extract_unsigned_integer (buf, wcwidth, byte_order) == 0)
+ break;
+ }
- case '\\':
- switch (c = *s++)
- {
- case '\\':
- *f++ = '\\';
- break;
- case 'a':
- *f++ = '\a';
- break;
- case 'b':
- *f++ = '\b';
- break;
- case 'f':
- *f++ = '\f';
- break;
- case 'n':
- *f++ = '\n';
- break;
- case 'r':
- *f++ = '\r';
- break;
- case 't':
- *f++ = '\t';
- break;
- case 'v':
- *f++ = '\v';
- break;
- case '"':
- *f++ = '"';
- break;
- default:
- /* ??? TODO: handle other escape sequences */
- error ("Unrecognized escape character \\%c in format string.",
- c);
- }
- break;
+ /* Copy the string contents into a string inside GDB. */
+ str = (gdb_byte *) alloca (j + wcwidth);
+ if (j != 0)
+ read_memory (tem, str, j);
+ memset (&str[j], 0, wcwidth);
- default:
- *f++ = c;
+ obstack_init (&output);
+ inner_cleanup = make_cleanup_obstack_free (&output);
+
+ convert_between_encodings (target_wide_charset (gdbarch),
+ host_charset (),
+ str, j, wcwidth,
+ &output, translit_char);
+ obstack_grow_str0 (&output, "");
+
+ fprintf_filtered (stream, format, obstack_base (&output));
+ do_cleanups (inner_cleanup);
+}
+
+/* Subroutine of ui_printf to simplify it.
+ Print VALUE, a decimal floating point value, to STREAM using FORMAT. */
+
+static void
+printf_decfloat (struct ui_file *stream, const char *format,
+ struct value *value)
+{
+ const gdb_byte *param_ptr = value_contents (value);
+
+#if defined (PRINTF_HAS_DECFLOAT)
+ /* If we have native support for Decimal floating
+ printing, handle it here. */
+ fprintf_filtered (stream, format, param_ptr);
+#else
+ /* As a workaround until vasprintf has native support for DFP
+ we convert the DFP values to string and print them using
+ the %s format specifier. */
+ const char *p;
+
+ /* Parameter data. */
+ struct type *param_type = value_type (value);
+ struct gdbarch *gdbarch = get_type_arch (param_type);
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
+ /* DFP output data. */
+ struct value *dfp_value = NULL;
+ gdb_byte *dfp_ptr;
+ int dfp_len = 16;
+ gdb_byte dec[16];
+ struct type *dfp_type = NULL;
+ char decstr[MAX_DECIMAL_STRING];
+
+ /* Points to the end of the string so that we can go back
+ and check for DFP length modifiers. */
+ p = format + strlen (format);
+
+ /* Look for the float/double format specifier. */
+ while (*p != 'f' && *p != 'e' && *p != 'E'
+ && *p != 'g' && *p != 'G')
+ p--;
+
+ /* Search for the '%' char and extract the size and type of
+ the output decimal value based on its modifiers
+ (%Hf, %Df, %DDf). */
+ while (*--p != '%')
+ {
+ if (*p == 'H')
+ {
+ dfp_len = 4;
+ dfp_type = builtin_type (gdbarch)->builtin_decfloat;
+ }
+ else if (*p == 'D' && *(p - 1) == 'D')
+ {
+ dfp_len = 16;
+ dfp_type = builtin_type (gdbarch)->builtin_declong;
+ p--;
+ }
+ else
+ {
+ dfp_len = 8;
+ dfp_type = builtin_type (gdbarch)->builtin_decdouble;
}
}
- /* Skip over " and following space and comma. */
- s++;
- *f++ = '\0';
- while (*s == ' ' || *s == '\t')
- s++;
+ /* Conversion between different DFP types. */
+ if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT)
+ decimal_convert (param_ptr, TYPE_LENGTH (param_type),
+ byte_order, dec, dfp_len, byte_order);
+ else
+ /* If this is a non-trivial conversion, just output 0.
+ A correct converted value can be displayed by explicitly
+ casting to a DFP type. */
+ decimal_from_string (dec, dfp_len, byte_order, "0");
- if (*s != ',' && *s != 0)
- error ("Invalid argument syntax");
+ dfp_value = value_from_decfloat (dfp_type, dec);
- if (*s == ',')
- s++;
- while (*s == ' ' || *s == '\t')
- s++;
+ dfp_ptr = (gdb_byte *) value_contents (dfp_value);
- /* Need extra space for the '\0's. Doubling the size is sufficient. */
- substrings = alloca (strlen (string) * 2);
- current_substring = substrings;
+ decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr);
- {
- /* Now scan the string for %-specs and see what kinds of args they want.
- argclass[I] classifies the %-specs so we can give printf_filtered
- something of the right size. */
+ /* Print the DFP value. */
+ fprintf_filtered (stream, "%s", decstr);
+#endif
+}
- enum argclass
- {
- no_arg, int_arg, string_arg, double_arg, long_long_arg
- };
- enum argclass *argclass;
- enum argclass this_argclass;
- char *last_arg;
- int nargs_wanted;
- int lcount;
- int i;
+/* Subroutine of ui_printf to simplify it.
+ Print VALUE, a target pointer, to STREAM using FORMAT. */
- argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass);
- nargs_wanted = 0;
- f = string;
- last_arg = string;
- while (*f)
- if (*f++ == '%')
+static void
+printf_pointer (struct ui_file *stream, const char *format,
+ struct value *value)
+{
+ /* We avoid the host's %p because pointers are too
+ likely to be the wrong size. The only interesting
+ modifier for %p is a width; extract that, and then
+ handle %p as glibc would: %#x or a literal "(nil)". */
+
+ const char *p;
+ char *fmt, *fmt_p;
+#ifdef PRINTF_HAS_LONG_LONG
+ long long val = value_as_long (value);
+#else
+ long val = value_as_long (value);
+#endif
+
+ fmt = (char *) alloca (strlen (format) + 5);
+
+ /* Copy up to the leading %. */
+ p = format;
+ fmt_p = fmt;
+ while (*p)
+ {
+ int is_percent = (*p == '%');
+
+ *fmt_p++ = *p++;
+ if (is_percent)
{
- lcount = 0;
- while (strchr ("0123456789.hlL-+ #", *f))
- {
- if (*f == 'l' || *f == 'L')
- lcount++;
- f++;
- }
- switch (*f)
- {
- case 's':
- this_argclass = string_arg;
- break;
+ if (*p == '%')
+ *fmt_p++ = *p++;
+ else
+ break;
+ }
+ }
- case 'e':
- case 'f':
- case 'g':
- this_argclass = double_arg;
- break;
+ if (val != 0)
+ *fmt_p++ = '#';
- case '*':
- error ("`*' not supported for precision or width in printf");
+ /* Copy any width. */
+ while (*p >= '0' && *p < '9')
+ *fmt_p++ = *p++;
- case 'n':
- error ("Format specifier `n' not supported in printf");
+ gdb_assert (*p == 'p' && *(p + 1) == '\0');
+ if (val != 0)
+ {
+#ifdef PRINTF_HAS_LONG_LONG
+ *fmt_p++ = 'l';
+#endif
+ *fmt_p++ = 'l';
+ *fmt_p++ = 'x';
+ *fmt_p++ = '\0';
+ fprintf_filtered (stream, fmt, val);
+ }
+ else
+ {
+ *fmt_p++ = 's';
+ *fmt_p++ = '\0';
+ fprintf_filtered (stream, fmt, "(nil)");
+ }
+}
- case '%':
- this_argclass = no_arg;
- break;
+/* printf "printf format string" ARG to STREAM. */
- default:
- if (lcount > 1)
- this_argclass = long_long_arg;
- else
- this_argclass = int_arg;
- break;
- }
- f++;
- if (this_argclass != no_arg)
- {
- strncpy (current_substring, last_arg, f - last_arg);
- current_substring += f - last_arg;
- *current_substring++ = '\0';
- last_arg = f;
- argclass[nargs_wanted++] = this_argclass;
- }
- }
+static void
+ui_printf (const char *arg, struct ui_file *stream)
+{
+ struct format_piece *fpieces;
+ const char *s = arg;
+ struct value **val_args;
+ int allocated_args = 20;
+ struct cleanup *old_cleanups;
+
+ val_args = XNEWVEC (struct value *, allocated_args);
+ old_cleanups = make_cleanup (free_current_contents, &val_args);
+
+ if (s == 0)
+ error_no_arg (_("format-control string and values to print"));
+
+ s = skip_spaces_const (s);
+
+ /* A format string should follow, enveloped in double quotes. */
+ if (*s++ != '"')
+ error (_("Bad format string, missing '\"'."));
+
+ fpieces = parse_format_string (&s);
+
+ make_cleanup (free_format_pieces_cleanup, &fpieces);
+
+ if (*s++ != '"')
+ error (_("Bad format string, non-terminated '\"'."));
+
+ s = skip_spaces_const (s);
+
+ if (*s != ',' && *s != 0)
+ error (_("Invalid argument syntax"));
+
+ if (*s == ',')
+ s++;
+ s = skip_spaces_const (s);
+
+ {
+ int nargs = 0;
+ int nargs_wanted;
+ int i, fr;
+ char *current_substring;
+
+ nargs_wanted = 0;
+ for (fr = 0; fpieces[fr].string != NULL; fr++)
+ if (fpieces[fr].argclass != literal_piece)
+ ++nargs_wanted;
/* Now, parse all arguments and evaluate them.
Store the VALUEs in VAL_ARGS. */
while (*s != '\0')
{
- char *s1;
+ const char *s1;
+
if (nargs == allocated_args)
val_args = (struct value **) xrealloc ((char *) val_args,
(allocated_args *= 2)
s1 = s;
val_args[nargs] = parse_to_comma_and_eval (&s1);
- /* If format string wants a float, unchecked-convert the value to
- floating point of the same size */
-
- if (argclass[nargs] == double_arg)
- {
- struct type *type = value_type (val_args[nargs]);
- if (TYPE_LENGTH (type) == sizeof (float))
- val_args[nargs]->type = builtin_type_float;
- if (TYPE_LENGTH (type) == sizeof (double))
- val_args[nargs]->type = builtin_type_double;
- }
nargs++;
s = s1;
if (*s == ',')
}
if (nargs != nargs_wanted)
- error ("Wrong number of arguments for specified format-string");
+ error (_("Wrong number of arguments for specified format-string"));
/* Now actually print them. */
- current_substring = substrings;
- for (i = 0; i < nargs; i++)
+ i = 0;
+ for (fr = 0; fpieces[fr].string != NULL; fr++)
{
- switch (argclass[i])
+ current_substring = fpieces[fr].string;
+ switch (fpieces[fr].argclass)
{
case string_arg:
+ printf_c_string (stream, current_substring, val_args[i]);
+ break;
+ case wide_string_arg:
+ printf_wide_c_string (stream, current_substring, val_args[i]);
+ break;
+ case wide_char_arg:
{
- char *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++)
- {
- char c;
- QUIT;
- read_memory (tem + j, &c, 1);
- if (c == 0)
- break;
- }
-
- /* Copy the string contents into a string inside GDB. */
- str = (char *) alloca (j + 1);
- if (j != 0)
- read_memory (tem, str, j);
- str[j] = 0;
-
- printf_filtered (current_substring, str);
+ struct gdbarch *gdbarch
+ = get_type_arch (value_type (val_args[i]));
+ struct type *wctype = lookup_typename (current_language, gdbarch,
+ "wchar_t", NULL, 0);
+ struct type *valtype;
+ struct obstack output;
+ struct cleanup *inner_cleanup;
+ const gdb_byte *bytes;
+
+ valtype = value_type (val_args[i]);
+ if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype)
+ || TYPE_CODE (valtype) != TYPE_CODE_INT)
+ error (_("expected wchar_t argument for %%lc"));
+
+ bytes = value_contents (val_args[i]);
+
+ obstack_init (&output);
+ inner_cleanup = make_cleanup_obstack_free (&output);
+
+ convert_between_encodings (target_wide_charset (gdbarch),
+ host_charset (),
+ bytes, TYPE_LENGTH (valtype),
+ TYPE_LENGTH (valtype),
+ &output, translit_char);
+ obstack_grow_str0 (&output, "");
+
+ fprintf_filtered (stream, current_substring,
+ obstack_base (&output));
+ do_cleanups (inner_cleanup);
}
break;
case double_arg:
{
- double val = value_as_double (val_args[i]);
- printf_filtered (current_substring, val);
+ struct type *type = value_type (val_args[i]);
+ DOUBLEST val;
+ int inv;
+
+ /* If format string wants a float, unchecked-convert the value
+ to floating point of the same size. */
+ type = float_type_from_length (type);
+ val = unpack_double (type, value_contents (val_args[i]), &inv);
+ if (inv)
+ error (_("Invalid floating value found in program."));
+
+ fprintf_filtered (stream, current_substring, (double) val);
+ break;
+ }
+ case long_double_arg:
+#ifdef HAVE_LONG_DOUBLE
+ {
+ struct type *type = value_type (val_args[i]);
+ DOUBLEST val;
+ int inv;
+
+ /* If format string wants a float, unchecked-convert the value
+ to floating point of the same size. */
+ type = float_type_from_length (type);
+ val = unpack_double (type, value_contents (val_args[i]), &inv);
+ if (inv)
+ error (_("Invalid floating value found in program."));
+
+ fprintf_filtered (stream, current_substring,
+ (long double) val);
break;
}
+#else
+ error (_("long double not supported in printf"));
+#endif
case long_long_arg:
-#if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG)
+#ifdef 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
- error ("long long not supported in printf");
+ error (_("long long not supported in printf"));
#endif
case int_arg:
{
- /* FIXME: there should be separate int_arg and long_arg. */
+ int val = value_as_long (val_args[i]);
+
+ 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;
}
- default: /* purecov: deadcode */
- error ("internal error in printf_command"); /* purecov: deadcode */
+ /* Handles decimal floating values. */
+ case decfloat_arg:
+ printf_decfloat (stream, current_substring, val_args[i]);
+ break;
+ case ptr_arg:
+ printf_pointer (stream, current_substring, val_args[i]);
+ break;
+ case literal_piece:
+ /* Print a portion of the format string that has no
+ directives. 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, current_substring, 0);
+ break;
+ default:
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
}
- /* Skip to the next substring. */
- current_substring += strlen (current_substring) + 1;
+ /* Maybe advance to the next argument. */
+ if (fpieces[fr].argclass != literal_piece)
+ ++i;
}
- /* Print the portion of the format string after the last argument. */
- puts_filtered (last_arg);
}
do_cleanups (old_cleanups);
}
+/* Implement the "printf" command. */
+
+static void
+printf_command (char *arg, int from_tty)
+{
+ ui_printf (arg, gdb_stdout);
+ gdb_flush (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);
+
+ ui_printf (arg, ui_out);
+
+ std::string expanded = ui_file_as_string (ui_out);
+
+ execute_command (&expanded[0], from_tty);
+
+ do_cleanups (cleanups);
+}
+
void
_initialize_printcmd (void)
{
current_display_number = -1;
+ observer_attach_free_objfile (clear_dangling_display_expressions);
+
add_info ("address", address_info,
- "Describe where symbol SYM is stored.");
+ _("Describe where symbol SYM is stored."));
- add_info ("symbol", sym_info,
- "Describe what symbol is at location ADDR.\n\
-Only for symbols with fixed locations (global or static scope).");
+ add_info ("symbol", sym_info, _("\
+Describe what symbol is at location ADDR.\n\
+Only for symbols with fixed locations (global or static scope)."));
- add_com ("x", class_vars, x_command,
- concat ("Examine memory: x/FMT ADDRESS.\n\
+ add_com ("x", class_vars, x_command, _("\
+Examine memory: x/FMT ADDRESS.\n\
ADDRESS is an expression for the memory address to examine.\n\
FMT is a repeat count followed by a format letter and a size letter.\n\
Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\
- t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n",
- "Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\
+ t(binary), f(float), a(address), i(instruction), c(char), s(string)\n\
+ and z(hex, zero padded on the left).\n\
+Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\
The specified number of objects of the specified size are printed\n\
-according to the format.\n\n\
+according to the format. If a negative number is specified, memory is\n\
+examined backward from the address.\n\n\
Defaults for format and size letters are those previously used.\n\
Default count is 1. Default address is following last thing printed\n\
-with this command or \"print\".", NULL));
+with this command or \"print\"."));
#if 0
add_com ("whereis", class_vars, whereis_command,
- "Print line number and file of definition of variable.");
+ _("Print line number and file of definition of variable."));
#endif
- add_info ("display", display_info,
- "Expressions to display when program stops, with code numbers.");
+ add_info ("display", display_info, _("\
+Expressions to display when program stops, with code numbers."));
- add_cmd ("undisplay", class_vars, undisplay_command,
- "Cancel some expressions to be displayed when program stops.\n\
+ add_cmd ("undisplay", class_vars, undisplay_command, _("\
+Cancel some expressions to be displayed when program stops.\n\
Arguments are the code numbers of the expressions to stop displaying.\n\
No argument means cancel all automatic-display expressions.\n\
\"delete display\" has the same effect as this command.\n\
-Do \"info display\" to see current list of code numbers.",
+Do \"info display\" to see current list of code numbers."),
&cmdlist);
- add_com ("display", class_vars, display_command,
- "Print value of expression EXP each time the program stops.\n\
+ add_com ("display", class_vars, display_command, _("\
+Print value of expression EXP each time the program stops.\n\
/FMT may be used before EXP as in the \"print\" command.\n\
/FMT \"i\" or \"s\" or including a size-letter is allowed,\n\
as in the \"x\" command, and then EXP is used to get the address to examine\n\
and examining is done as in the \"x\" command.\n\n\
With no argument, display all currently requested auto-display expressions.\n\
-Use \"undisplay\" to cancel display requests previously made."
- );
+Use \"undisplay\" to cancel display requests previously made."));
- add_cmd ("display", class_vars, enable_display,
- "Enable some expressions to be displayed when program stops.\n\
+ add_cmd ("display", class_vars, enable_display_command, _("\
+Enable some expressions to be displayed when program stops.\n\
Arguments are the code numbers of the expressions to resume displaying.\n\
No argument means enable all automatic-display expressions.\n\
-Do \"info display\" to see current list of code numbers.", &enablelist);
+Do \"info display\" to see current list of code numbers."), &enablelist);
- add_cmd ("display", class_vars, disable_display_command,
- "Disable some expressions to be displayed when program stops.\n\
+ add_cmd ("display", class_vars, disable_display_command, _("\
+Disable some expressions to be displayed when program stops.\n\
Arguments are the code numbers of the expressions to stop displaying.\n\
No argument means disable all automatic-display expressions.\n\
-Do \"info display\" to see current list of code numbers.", &disablelist);
+Do \"info display\" to see current list of code numbers."), &disablelist);
- add_cmd ("display", class_vars, undisplay_command,
- "Cancel some expressions to be displayed when program stops.\n\
+ add_cmd ("display", class_vars, undisplay_command, _("\
+Cancel some expressions to be displayed when program stops.\n\
Arguments are the code numbers of the expressions to stop displaying.\n\
No argument means cancel all automatic-display expressions.\n\
-Do \"info display\" to see current list of code numbers.", &deletelist);
+Do \"info display\" to see current list of code numbers."), &deletelist);
- add_com ("printf", class_vars, printf_command,
- "printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\
-This is useful for formatted output in user-defined commands.");
+ add_com ("printf", class_vars, printf_command, _("\
+printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\
+This is useful for formatted output in user-defined commands."));
- add_com ("output", class_vars, output_command,
- "Like \"print\" but don't put in value history and don't print newline.\n\
-This is useful in user-defined commands.");
+ add_com ("output", class_vars, output_command, _("\
+Like \"print\" but don't put in value history and don't print newline.\n\
+This is useful in user-defined commands."));
- add_prefix_cmd ("set", class_vars, set_command,
- concat ("Evaluate expression EXP and assign result to variable VAR, using assignment\n\
+ add_prefix_cmd ("set", class_vars, set_command, _("\
+Evaluate expression EXP and assign result to variable VAR, using assignment\n\
syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\
example). VAR may be a debugger \"convenience\" variable (names starting\n\
with $), a register (a few standard names starting with $), or an actual\n\
-variable in the program being debugged. EXP is any valid expression.\n",
- "Use \"set variable\" for variables with names identical to set subcommands.\n\
-\nWith a subcommand, this command modifies parts of the gdb environment.\n\
-You can see these environment settings with the \"show\" command.", NULL),
+variable in the program being debugged. EXP is any valid expression.\n\
+Use \"set variable\" for variables with names identical to set subcommands.\n\
+\n\
+With a subcommand, this command modifies parts of the gdb environment.\n\
+You can see these environment settings with the \"show\" command."),
&setlist, "set ", 1, &cmdlist);
if (dbx_commands)
- add_com ("assign", class_vars, set_command, concat ("Evaluate expression \
-EXP and assign result to variable VAR, using assignment\n\
+ add_com ("assign", class_vars, set_command, _("\
+Evaluate expression EXP and assign result to variable VAR, using assignment\n\
syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\
example). VAR may be a debugger \"convenience\" variable (names starting\n\
with $), a register (a few standard names starting with $), or an actual\n\
-variable in the program being debugged. EXP is any valid expression.\n",
- "Use \"set variable\" for variables with names identical to set subcommands.\n\
+variable in the program being debugged. EXP is any valid expression.\n\
+Use \"set variable\" for variables with names identical to set subcommands.\n\
\nWith a subcommand, this command modifies parts of the gdb environment.\n\
-You can see these environment settings with the \"show\" command.", NULL));
+You can see these environment settings with the \"show\" command."));
- /* "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\
+ /* "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\
current working language. The result is printed and saved in the value\n\
-history, if it is not void.");
- set_cmd_completer (c, location_completer);
+history, if it is not void."));
+ set_cmd_completer (c, expression_completer);
- add_cmd ("variable", class_vars, set_command,
- "Evaluate expression EXP and assign result to variable VAR, using assignment\n\
+ add_cmd ("variable", class_vars, set_command, _("\
+Evaluate expression EXP and assign result to variable VAR, using assignment\n\
syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\
example). VAR may be a debugger \"convenience\" variable (names starting\n\
with $), a register (a few standard names starting with $), or an actual\n\
variable in the program being debugged. EXP is any valid expression.\n\
-This may usually be abbreviated to simply \"set\".",
+This may usually be abbreviated to simply \"set\"."),
&setlist);
- c = add_com ("print", class_vars, print_command,
- concat ("Print value of expression EXP.\n\
+ c = add_com ("print", class_vars, print_command, _("\
+Print value of expression EXP.\n\
Variables accessible are those of the lexical environment of the selected\n\
stack frame, plus all those whose scope is global or an entire file.\n\
\n\
$NUM gets previous value number NUM. $ and $$ are the last two values.\n\
$$NUM refers to NUM'th value back from the last one.\n\
-Names starting with $ refer to registers (with the values they would have\n",
- "if the program were to return to the stack frame now selected, restoring\n\
+Names starting with $ refer to registers (with the values they would have\n\
+if the program were to return to the stack frame now selected, restoring\n\
all registers saved by frames farther in) or else to debugger\n\
\"convenience\" variables (any such name not a known register).\n\
-Use assignment expressions to give values to convenience variables.\n",
- "\n\
+Use assignment expressions to give values to convenience variables.\n\
+\n\
{TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\
@ is a binary operator for treating consecutive data objects\n\
anywhere in memory as an array. FOO@NUM gives an array whose first\n\
element is FOO, whose second element is stored in the space following\n\
where FOO is stored, etc. FOO must be an expression whose value\n\
-resides in memory.\n",
- "\n\
+resides in memory.\n\
+\n\
EXP may be preceded with /FMT, where FMT is a format letter\n\
-but no count or size letter (see \"x\" command).", NULL));
- set_cmd_completer (c, location_completer);
+but no count or size letter (see \"x\" command)."));
+ set_cmd_completer (c, expression_completer);
add_com_alias ("p", "print", class_vars, 1);
-
- c = add_com ("inspect", class_vars, inspect_command,
- "Same as \"print\" command, except that if you are running in the epoch\n\
-environment, the value is printed in its own window.");
- set_cmd_completer (c, location_completer);
-
- deprecated_add_show_from_set
- (add_set_cmd ("max-symbolic-offset", no_class, var_uinteger,
- (char *) &max_symbolic_offset,
- "Set the largest offset that will be printed in <symbol+1234> form.",
- &setprintlist),
- &showprintlist);
- deprecated_add_show_from_set
- (add_set_cmd ("symbol-filename", no_class, var_boolean,
- (char *) &print_symbol_filename, "\
-Set printing of source filename and line number with <symbol>.",
- &setprintlist),
- &showprintlist);
-
- /* For examine/instruction a single byte quantity is specified as
- the data. This avoids problems with value_at_lazy() requiring a
- valid data type (and rejecting VOID). */
- examine_i_type = init_type (TYPE_CODE_INT, 1, 0, "examine_i_type", NULL);
-
- examine_b_type = init_type (TYPE_CODE_INT, 1, 0, "examine_b_type", NULL);
- examine_h_type = init_type (TYPE_CODE_INT, 2, 0, "examine_h_type", NULL);
- examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL);
- examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL);
-
+ add_com_alias ("inspect", "print", class_vars, 1);
+
+ add_setshow_uinteger_cmd ("max-symbolic-offset", no_class,
+ &max_symbolic_offset, _("\
+Set the largest offset that will be printed in <symbol+1234> form."), _("\
+Show the largest offset that will be printed in <symbol+1234> form."), _("\
+Tell GDB to only display the symbolic form of an address if the\n\
+offset between the closest earlier symbol and the address is less than\n\
+the specified maximum offset. The default is \"unlimited\", which tells GDB\n\
+to always print the symbolic form of an address if any symbol precedes\n\
+it. Zero is equivalent to \"unlimited\"."),
+ NULL,
+ show_max_symbolic_offset,
+ &setprintlist, &showprintlist);
+ add_setshow_boolean_cmd ("symbol-filename", no_class,
+ &print_symbol_filename, _("\
+Set printing of source filename and line number with <symbol>."), _("\
+Show printing of source filename and line number with <symbol>."), NULL,
+ 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