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/* Definitions for BFD wrappers used by GDB.
Copyright (C) 2011-2014 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_BFD_H
#define GDB_BFD_H
#include "registry.h"
DECLARE_REGISTRY (bfd);
/* Open a read-only (FOPEN_RB) BFD given arguments like bfd_fopen.
Returns NULL on error. On success, returns a new reference to the
BFD, which must be freed with gdb_bfd_unref. BFDs returned by this
call are shared among all callers opening the same file. If FD is
not -1, then after this call it is owned by BFD. */
struct bfd *gdb_bfd_open (const char *name, const char *target, int fd);
/* Increment the reference count of ABFD. It is fine for ABFD to be
NULL; in this case the function does nothing. */
void gdb_bfd_ref (struct bfd *abfd);
/* Decrement the reference count of ABFD. If this is the last
reference, ABFD will be freed. If ABFD is NULL, this function does
nothing. */
void gdb_bfd_unref (struct bfd *abfd);
/* Mark the CHILD BFD as being a member of PARENT. Also, increment
the reference count of CHILD. Calling this function ensures that
as along as CHILD remains alive, PARENT will as well. Both CHILD
and PARENT must be non-NULL. This can be called more than once
with the same arguments; but it is not allowed to call it for a
single CHILD with different values for PARENT. */
void gdb_bfd_mark_parent (bfd *child, bfd *parent);
/* Try to read or map the contents of the section SECT. If
successful, the section data is returned and *SIZE is set to the
size of the section data; this may not be the same as the size
according to bfd_get_section_size if the section was compressed.
The returned section data is associated with the BFD and will be
destroyed when the BFD is destroyed. There is no other way to free
it; for temporary uses of section data, see
bfd_malloc_and_get_section. SECT may not have relocations. This
function will throw on error. */
const gdb_byte *gdb_bfd_map_section (asection *section, bfd_size_type *size);
/* Compute the CRC for ABFD. The CRC is used to find and verify
separate debug files. When successful, this fills in *CRC_OUT and
returns 1. Otherwise, this issues a warning and returns 0. */
int gdb_bfd_crc (struct bfd *abfd, unsigned long *crc_out);
/* A wrapper for bfd_fopen that initializes the gdb-specific reference
count. */
bfd *gdb_bfd_fopen (const char *, const char *, const char *, int);
/* A wrapper for bfd_openr that initializes the gdb-specific reference
count. */
bfd *gdb_bfd_openr (const char *, const char *);
/* A wrapper for bfd_openw that initializes the gdb-specific reference
count. */
bfd *gdb_bfd_openw (const char *, const char *);
/* A wrapper for bfd_openr_iovec that initializes the gdb-specific
reference count. */
bfd *gdb_bfd_openr_iovec (const char *filename, const char *target,
void *(*open_func) (struct bfd *nbfd,
void *open_closure),
void *open_closure,
file_ptr (*pread_func) (struct bfd *nbfd,
void *stream,
void *buf,
file_ptr nbytes,
file_ptr offset),
int (*close_func) (struct bfd *nbfd,
void *stream),
int (*stat_func) (struct bfd *abfd,
void *stream,
struct stat *sb));
/* A wrapper for bfd_openr_next_archived_file that initializes the
gdb-specific reference count. */
bfd *gdb_bfd_openr_next_archived_file (bfd *archive, bfd *previous);
/* A wrapper for bfd_fdopenr that initializes the gdb-specific
reference count. */
bfd *gdb_bfd_fdopenr (const char *filename, const char *target, int fd);
/* Return the index of the BFD section SECTION. Ordinarily this is
just the section's index, but for some special sections, like
bfd_com_section_ptr, it will be a synthesized value. */
int gdb_bfd_section_index (bfd *abfd, asection *section);
/* Like bfd_count_sections, but include any possible global sections,
like bfd_com_section_ptr. */
int gdb_bfd_count_sections (bfd *abfd);
/* Return true if any section requires relocations, false
otherwise. */
int gdb_bfd_requires_relocations (bfd *abfd);
#endif /* GDB_BFD_H */
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