mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
/* Support for printing Go values for GDB, the GNU debugger.
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Copyright (C) 2012-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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NOTE: This currently only provides special support for printing gccgo
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strings. 6g objects are handled in Python.
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The remaining gccgo types may also be handled in Python.
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Strings are handled specially here, at least for now, in case the Python
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support is unavailable. */
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#include "defs.h"
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#include "gdbtypes.h"
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#include "gdbcore.h"
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#include "go-lang.h"
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#include "c-lang.h"
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#include "valprint.h"
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#include "cli/cli-style.h"
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/* Print a Go string.
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Note: We assume
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gdb_assert (go_classify_struct_type (type) == GO_TYPE_STRING). */
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static void
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print_go_string (struct type *type,
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LONGEST embedded_offset, CORE_ADDR address,
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struct ui_file *stream, int recurse,
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struct value *val,
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const struct value_print_options *options)
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{
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struct gdbarch *gdbarch = type->arch ();
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struct type *elt_ptr_type = type->field (0).type ();
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struct type *elt_type = elt_ptr_type->target_type ();
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LONGEST length;
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/* TODO(dje): The encapsulation of what a pointer is belongs in value.c.
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I.e. If there's going to be unpack_pointer, there should be
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unpack_value_field_as_pointer. Do this until we can get
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unpack_value_field_as_pointer. */
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LONGEST addr;
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const gdb_byte *valaddr = val->contents_for_printing ().data ();
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if (! unpack_value_field_as_long (type, valaddr, embedded_offset, 0,
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val, &addr))
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error (_("Unable to read string address"));
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if (! unpack_value_field_as_long (type, valaddr, embedded_offset, 1,
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val, &length))
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error (_("Unable to read string length"));
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/* TODO(dje): Print address of struct or actual string? */
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if (options->addressprint)
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{
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gdb_puts (paddress (gdbarch, addr), stream);
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gdb_puts (" ", stream);
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}
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if (length < 0)
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{
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gdb_printf (_("<invalid length: %ps>"),
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styled_string (metadata_style.style (),
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plongest (addr)));
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return;
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}
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/* TODO(dje): Perhaps we should pass "UTF8" for ENCODING.
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The target encoding is a global switch.
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Either choice is problematic. */
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val_print_string (elt_type, NULL, addr, length, stream, options);
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}
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/* See go-lang.h. */
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void
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go_language::value_print_inner (struct value *val, struct ui_file *stream,
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int recurse,
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const struct value_print_options *options) const
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{
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struct type *type = check_typedef (val->type ());
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switch (type->code ())
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{
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case TYPE_CODE_STRUCT:
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{
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enum go_type go_type = go_classify_struct_type (type);
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switch (go_type)
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{
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case GO_TYPE_STRING:
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if (! options->raw)
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{
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print_go_string (type, val->embedded_offset (),
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val->address (),
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stream, recurse, val, options);
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return;
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}
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break;
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default:
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break;
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}
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}
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[[fallthrough]];
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default:
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c_value_print_inner (val, stream, recurse, options);
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break;
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}
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}
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