Files
binutils-gdb/gdb/mdebugread.h
Guinevere Larsen 5cbfbe4263 gdb: wrap mdebug debuginfo reading in ifdefs
This commit aims to allow a user to enable or disable mdebug support at
compilation time. To do that, a new configure option is added, called
--enable-gdb-mdebug-support (and the accompanying --disable version). By
default, support is enabled, and if a user decides to disable support,
the file mdebugread.c won't be compiled in the final binary, and the
macro MDEBUG_FORMAT_AVAILABLE won't be defined.

That macro is used to control the definitions of mdebug reading, either
the actual definition in mdebugread.c, or a static inline version that
only emits the following warning:

> No mdebug support available.

Ideally, we'd like to guard the entirity of mdebugread in the macro, but
the alpha-mdebug-tdep file uses those directly, and I don't think we
should restrict alpha hosts to requiring that debug format compiled in,
nor do I understand the tdep file enough to be comfortable disentangling
the requirements.

Reviewed-By: Eli Zaretskii <eliz@gnu.org>
Approved-By: Andrew Burgess <aburgess@redhat.com>
2025-06-03 13:36:32 -03:00

75 lines
2.2 KiB
C

/* Read a symbol table in ECOFF format (Third-Eye).
Copyright (C) 2004-2025 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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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, see <http://www.gnu.org/licenses/>. */
#ifndef GDB_MDEBUGREAD_H
#define GDB_MDEBUGREAD_H
#include "coff/sym.h"
#include "coff/symconst.h"
/* Specific information about a procedure. Architectures (ab)uses
this to save memory. */
struct mdebug_extra_func_info
{
long numargs; /* Number of args to procedure (was iopt). */
PDR pdr; /* Procedure descriptor record. */
};
/* Special symbol found in blocks associated with routines. We can
hang mdebug_extra_func_info's off of this. */
#define MDEBUG_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
#if defined(MDEBUG_FORMAT_AVAILABLE)
extern void elfmdebug_build_psymtabs (struct objfile *,
const struct ecoff_debug_swap *,
asection *);
/* Read ECOFF debugging information from a BFD section. This is
called from mipsread.c. It parses the section into a
ecoff_debug_info struct, and then lets the rest of the file handle
it as normal. */
extern void mipsmdebug_build_psymtabs (struct objfile *,
const struct ecoff_debug_swap *,
struct ecoff_debug_info *);
#else /* MDEBUG_FORMAT_AVAILABLE */
static inline void
elfmdebug_build_psymtabs (struct objfile *,
const struct ecoff_debug_swap *,
asection *)
{
warning (_("No mdebug support available"));
}
static inline void
mipsmdebug_build_psymtabs (struct objfile *,
const struct ecoff_debug_swap *,
struct ecoff_debug_info *)
{
warning (_("No mdebug support available"));
}
#endif /* MDEBUG_FORMAT_AVAILABLE */
#endif /* GDB_MDEBUGREAD_H */