/* Print values for GNU debugger GDB.
- Copyright (C) 1986-2013 Free Software Foundation, Inc.
+ Copyright (C) 1986-2015 Free Software Foundation, Inc.
This file is part of GDB.
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 "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 "valprint.h"
-#include "exceptions.h"
#include "observer.h"
#include "solist.h"
#include "parser-defs.h"
#include "tui/tui.h" /* For tui_active et al. */
#endif
-struct format_data
- {
- int count;
- char format;
- char size;
-
- /* True if the value should be printed raw -- that is, bypassing
- python-based formatters. */
- unsigned char raw;
- };
-
/* Last specified output format. */
static char last_format = 0;
supported at this level. */
void
-print_scalar_formatted (const void *valaddr, struct type *type,
+print_scalar_formatted (const gdb_byte *valaddr, struct type *type,
const struct value_print_options *options,
int size, struct ui_file *stream)
{
int *line, /* OUT */
int *unmapped) /* OUT */
{
- struct minimal_symbol *msymbol;
+ struct bound_minimal_symbol msymbol;
struct symbol *symbol;
CORE_ADDR name_location = 0;
struct obj_section *section = NULL;
save some memory, but for many debug format--ELF/DWARF or
anything/stabs--it would be inconvenient to eliminate those minimal
symbols anyway). */
- msymbol = lookup_minimal_symbol_by_pc_section (addr, section).minsym;
+ msymbol = lookup_minimal_symbol_by_pc_section (addr, section);
symbol = find_pc_sect_function (addr, section);
if (symbol)
name_temp = SYMBOL_LINKAGE_NAME (symbol);
}
- if (msymbol != NULL
- && MSYMBOL_HAS_SIZE (msymbol)
- && MSYMBOL_SIZE (msymbol) == 0
- && MSYMBOL_TYPE (msymbol) != mst_text
- && MSYMBOL_TYPE (msymbol) != mst_text_gnu_ifunc
- && MSYMBOL_TYPE (msymbol) != mst_file_text)
- 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 != 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) == mst_text
- || MSYMBOL_TYPE (msymbol) == mst_text_gnu_ifunc
- || MSYMBOL_TYPE (msymbol) == mst_file_text
- || MSYMBOL_TYPE (msymbol) == mst_solib_trampoline)
+ 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;
- 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 = SYMBOL_LINKAGE_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. */
}
\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);
fmt.format, cmdname);
}
+/* Parse print command format string into *FMTP and update *EXPP.
+ CMDNAME should name the current command. */
+
+void
+print_command_parse_format (const char **expp, const char *cmdname,
+ struct format_data *fmtp)
+{
+ const char *exp = *expp;
+
+ if (exp && *exp == '/')
+ {
+ exp++;
+ *fmtp = decode_format (&exp, last_format, 0);
+ validate_format (*fmtp, cmdname);
+ last_format = fmtp->format;
+ }
+ else
+ {
+ fmtp->count = 1;
+ fmtp->format = 0;
+ fmtp->size = 0;
+ fmtp->raw = 0;
+ }
+
+ *expp = exp;
+}
+
+/* Print VAL to console according to *FMTP, including recording it to
+ the history. */
+
+void
+print_value (struct value *val, const struct format_data *fmtp)
+{
+ struct value_print_options opts;
+ int histindex = record_latest_value (val);
+
+ annotate_value_history_begin (histindex, value_type (val));
+
+ printf_filtered ("$%d = ", histindex);
+
+ annotate_value_history_value ();
+
+ get_formatted_print_options (&opts, fmtp->format);
+ opts.raw = fmtp->raw;
+
+ print_formatted (val, fmtp->size, &opts, gdb_stdout);
+ printf_filtered ("\n");
+
+ annotate_value_history_end ();
+}
+
/* Evaluate string EXP as an expression in the current language and
print the resulting value. EXP may contain a format specifier as the
first argument ("/x myvar" for example, to print myvar in hex). */
{
struct expression *expr;
struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
- char format = 0;
struct value *val;
struct format_data fmt;
- if (exp && *exp == '/')
- {
- exp++;
- fmt = decode_format (&exp, last_format, 0);
- validate_format (fmt, "print");
- last_format = format = fmt.format;
- }
- else
- {
- fmt.count = 1;
- fmt.format = 0;
- fmt.size = 0;
- fmt.raw = 0;
- }
+ print_command_parse_format (&exp, "print", &fmt);
if (exp && *exp)
{
if (voidprint || (val && value_type (val) &&
TYPE_CODE (value_type (val)) != TYPE_CODE_VOID))
- {
- struct value_print_options opts;
- int histindex = record_latest_value (val);
-
- if (histindex >= 0)
- annotate_value_history_begin (histindex, value_type (val));
- else
- annotate_value_begin (value_type (val));
-
- if (histindex >= 0)
- printf_filtered ("$%d = ", histindex);
-
- if (histindex >= 0)
- annotate_value_history_value ();
-
- get_formatted_print_options (&opts, format);
- opts.raw = fmt.raw;
-
- print_formatted (val, fmt.size, &opts, gdb_stdout);
- printf_filtered ("\n");
-
- if (histindex >= 0)
- annotate_value_history_end ();
- else
- annotate_value_end ();
- }
+ print_value (val, &fmt);
do_cleanups (old_chain);
}
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 = SYMBOL_PRINT_NAME (msymbol);
+ 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". */
a pagination request inside printf_filtered. */
old_chain = make_cleanup (xfree, loc_string);
- gdb_assert (osect->objfile && osect->objfile->name);
- obj_name = osect->objfile->name;
+ 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))
struct gdbarch *gdbarch;
int regno;
struct symbol *sym;
- struct minimal_symbol *msymbol;
+ struct bound_minimal_symbol msymbol;
long val;
struct obj_section *section;
CORE_ADDR load_addr, context_pc = 0;
error (_("Argument required."));
sym = lookup_symbol (exp, get_selected_block (&context_pc), VAR_DOMAIN,
- &is_a_field_of_this);
+ &is_a_field_of_this).symbol;
if (sym == NULL)
{
if (is_a_field_of_this.type != NULL)
return;
}
- msymbol = lookup_minimal_symbol (exp, NULL, NULL);
+ msymbol = lookup_bound_minimal_symbol (exp);
- if (msymbol != NULL)
+ if (msymbol.minsym != NULL)
{
- struct objfile *objfile = msymbol_objfile (msymbol);
+ struct objfile *objfile = msymbol.objfile;
gdbarch = get_objfile_arch (objfile);
- load_addr = SYMBOL_VALUE_ADDRESS (msymbol);
+ load_addr = BMSYMBOL_VALUE_ADDRESS (msymbol);
printf_filtered ("Symbol \"");
fprintf_symbol_filtered (gdb_stdout, exp,
printf_filtered ("\" is at ");
fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
printf_filtered (" in a file compiled without debugging");
- section = SYMBOL_OBJ_SECTION (objfile, msymbol);
+ section = MSYMBOL_OBJ_SECTION (objfile, msymbol.minsym);
if (section_is_overlay (section))
{
load_addr = overlay_unmapped_address (load_addr, section);
current_language->la_language, DMGL_ANSI);
printf_filtered ("\" is ");
val = SYMBOL_VALUE (sym);
- section = SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sym), sym);
- gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile);
+ 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)
{
printf_filtered ("unresolved");
else
{
- section = SYMBOL_OBJ_SECTION (msym.objfile, msym.minsym);
- load_addr = SYMBOL_VALUE_ADDRESS (msym.minsym);
+ section = MSYMBOL_OBJ_SECTION (msym.objfile, msym.minsym);
if (section
&& (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0)
- printf_filtered (_("a thread-local variable at offset %s "
- "in the thread-local storage for `%s'"),
- paddress (gdbarch, load_addr),
- section->objfile->name);
+ {
+ 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 = BMSYMBOL_VALUE_ADDRESS (msym);
printf_filtered (_("static storage at address "));
fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout);
if (section_is_overlay (section))
{
struct format_data fmt;
struct expression *expr;
- struct display *new;
- int display_it = 1;
+ struct display *newobj;
const char *exp = arg;
-#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
-
- if (display_it)
+ if (exp == 0)
{
- if (exp == 0)
- {
- do_displays ();
- return;
- }
+ 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;
- fmt.raw = 0;
- }
+ 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;
+ }
- innermost_block = NULL;
- expr = parse_expression (exp);
+ innermost_block = NULL;
+ expr = parse_expression (exp);
- new = (struct display *) xmalloc (sizeof (struct display));
+ newobj = XNEW (struct display);
- new->exp_string = xstrdup (exp);
- new->exp = expr;
- new->block = innermost_block;
- new->pspace = current_program_space;
- new->next = display_chain;
- new->number = ++display_number;
- new->format = fmt;
- new->enabled_p = 1;
- display_chain = new;
+ newobj->exp_string = xstrdup (exp);
+ newobj->exp = expr;
+ newobj->block = innermost_block;
+ newobj->pspace = current_program_space;
+ newobj->next = display_chain;
+ newobj->number = ++display_number;
+ newobj->format = fmt;
+ newobj->enabled_p = 1;
+ display_chain = newobj;
- if (from_tty && target_has_execution)
- do_one_display (new);
+ if (from_tty)
+ do_one_display (newobj);
- dont_repeat ();
- }
+ dont_repeat ();
}
static void
while (!state.finished)
{
- char *p = state.string;
+ const char *p = state.string;
num = get_number_or_range (&state);
if (num == 0)
if (d->exp == NULL)
{
- volatile struct gdb_exception ex;
- TRY_CATCH (ex, RETURN_MASK_ALL)
+ TRY
{
innermost_block = NULL;
d->exp = parse_expression (d->exp_string);
d->block = innermost_block;
}
- if (ex.reason < 0)
+ CATCH (ex, RETURN_MASK_ALL)
{
/* Can't re-parse the expression. Disable this display item. */
d->enabled_p = 0;
d->exp_string, ex.message);
return;
}
+ END_CATCH
}
if (d->block)
printf_filtered (": ");
if (d->format.size)
{
- volatile struct gdb_exception ex;
annotate_display_format ();
annotate_display_value ();
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ TRY
{
struct value *val;
CORE_ADDR addr;
addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr);
do_examine (d->format, d->exp->gdbarch, addr);
}
- if (ex.reason < 0)
- fprintf_filtered (gdb_stdout, _("<error: %s>\n"), ex.message);
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered (gdb_stdout, _("<error: %s>\n"), ex.message);
+ }
+ END_CATCH
}
else
{
struct value_print_options opts;
- volatile struct gdb_exception ex;
annotate_display_format ();
get_formatted_print_options (&opts, d->format.format);
opts.raw = d->format.raw;
- TRY_CATCH (ex, RETURN_MASK_ERROR)
+ TRY
{
struct value *val;
val = evaluate_expression (d->exp);
print_formatted (val, d->format.size, &opts, gdb_stdout);
}
- if (ex.reason < 0)
- fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message);
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message);
+ }
+ END_CATCH
+
printf_filtered ("\n");
}
an item by re-parsing .exp_string field in the new execution context. */
static void
-clear_dangling_display_expressions (struct so_list *solib)
+clear_dangling_display_expressions (struct objfile *objfile)
{
- struct objfile *objfile = solib->objfile;
struct display *d;
+ struct program_space *pspace;
/* 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)
- objfile = objfile->separate_debug_objfile_backlink;
- gdb_assert (objfile->pspace == solib->pspace);
+ {
+ objfile = objfile->separate_debug_objfile_backlink;
+ gdb_assert (objfile->pspace == pspace);
+ }
for (d = display_chain; d != NULL; d = d->next)
{
- if (d->pspace != solib->pspace)
+ if (d->pspace != pspace)
continue;
if (lookup_objfile_from_block (d->block) == objfile
struct frame_info *frame,
struct ui_file *stream, int indent)
{
- volatile struct gdb_exception except;
if (!name)
name = SYMBOL_PRINT_NAME (var);
fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name);
- TRY_CATCH (except, RETURN_MASK_ERROR)
+ TRY
{
struct value *val;
struct value_print_options opts;
- val = read_var_value (var, frame);
+ /* 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);
function. */
frame = NULL;
}
- if (except.reason < 0)
- fprintf_filtered(stream, "<error reading variable %s (%s)>", name,
- except.message);
+ CATCH (except, RETURN_MASK_ERROR)
+ {
+ fprintf_filtered(stream, "<error reading variable %s (%s)>", name,
+ except.message);
+ }
+ END_CATCH
+
fprintf_filtered (stream, "\n");
}
struct type *wctype = lookup_typename (current_language, gdbarch,
"wchar_t", NULL, 0);
int wcwidth = TYPE_LENGTH (wctype);
- gdb_byte *buf = alloca (wcwidth);
+ gdb_byte *buf = (gdb_byte *) alloca (wcwidth);
struct obstack output;
struct cleanup *inner_cleanup;
long val = value_as_long (value);
#endif
- fmt = alloca (strlen (format) + 5);
+ fmt = (char *) alloca (strlen (format) + 5);
/* Copy up to the leading %. */
p = format;
int allocated_args = 20;
struct cleanup *old_cleanups;
- val_args = xmalloc (allocated_args * sizeof (struct value *));
+ val_args = XNEWVEC (struct value *, allocated_args);
old_cleanups = make_cleanup (free_current_contents, &val_args);
if (s == 0)
printf_command (char *arg, int from_tty)
{
ui_printf (arg, gdb_stdout);
+ gdb_flush (gdb_stdout);
}
/* Implement the "eval" command. */
current_display_number = -1;
- observer_attach_solib_unloaded (clear_dangling_display_expressions);
+ observer_attach_free_objfile (clear_dangling_display_expressions);
add_info ("address", address_info,
_("Describe where symbol SYM is stored."));
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