/* opncls.c -- open and close a BFD.
- Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 1997
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
+ 2001, 2002
Free Software Foundation, Inc.
Written by Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-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
-(at your option) any later version.
+ 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
+ (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.
+ 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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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. */
#include "bfd.h"
#include "sysdep.h"
#define S_IXOTH 0001 /* Execute by others. */
#endif
+/* Counter used to initialize the bfd identifier. */
+
+static unsigned int _bfd_id_counter = 0;
+
/* fdopen is a loser -- we should use stdio exclusively. Unfortunately
if we do that we can't use fcntl. */
-/* FIXME: This is no longer used. */
-long _bfd_chunksize = -1;
-
/* Return a new BFD. All BFD's are allocated through this routine. */
bfd *
{
bfd *nbfd;
- nbfd = (bfd *) bfd_zmalloc (sizeof (bfd));
+ nbfd = (bfd *) bfd_zmalloc ((bfd_size_type) sizeof (bfd));
if (nbfd == NULL)
return NULL;
+ nbfd->id = _bfd_id_counter++;
+
nbfd->memory = (PTR) objalloc_create ();
if (nbfd->memory == NULL)
{
bfd_set_error (bfd_error_no_memory);
+ free (nbfd);
return NULL;
}
nbfd->direction = no_direction;
nbfd->iostream = NULL;
nbfd->where = 0;
+ if (!bfd_hash_table_init_n (&nbfd->section_htab,
+ bfd_section_hash_newfunc,
+ 251))
+ {
+ free (nbfd);
+ return NULL;
+ }
nbfd->sections = (asection *) NULL;
+ nbfd->section_tail = &nbfd->sections;
nbfd->format = bfd_unknown;
nbfd->my_archive = (bfd *) NULL;
- nbfd->origin = 0;
- nbfd->opened_once = false;
- nbfd->output_has_begun = false;
+ nbfd->origin = 0;
+ nbfd->opened_once = FALSE;
+ nbfd->output_has_begun = FALSE;
nbfd->section_count = 0;
nbfd->usrdata = (PTR) NULL;
- nbfd->cacheable = false;
+ nbfd->cacheable = FALSE;
nbfd->flags = BFD_NO_FLAGS;
- nbfd->mtime_set = false;
+ nbfd->mtime_set = FALSE;
return nbfd;
}
bfd *nbfd;
nbfd = _bfd_new_bfd ();
+ if (nbfd == NULL)
+ return NULL;
nbfd->xvec = obfd->xvec;
nbfd->my_archive = obfd;
nbfd->direction = read_direction;
return nbfd;
}
+/* Delete a BFD. */
+
+void
+_bfd_delete_bfd (abfd)
+ bfd *abfd;
+{
+ bfd_hash_table_free (&abfd->section_htab);
+ objalloc_free ((struct objalloc *) abfd->memory);
+ free (abfd);
+}
+
/*
SECTION
Opening and closing BFDs
bfd_openr
SYNOPSIS
- bfd *bfd_openr(CONST char *filename, CONST char *target);
+ bfd *bfd_openr(const char *filename, const char *target);
DESCRIPTION
Open the file @var{filename} (using <<fopen>>) with the target
that function.
If <<NULL>> is returned then an error has occured. Possible errors
- are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> or <<system_call>> error.
+ are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> or
+ <<system_call>> error.
*/
bfd *
bfd_openr (filename, target)
- CONST char *filename;
- CONST char *target;
+ const char *filename;
+ const char *target;
{
bfd *nbfd;
const bfd_target *target_vec;
target_vec = bfd_find_target (target, nbfd);
if (target_vec == NULL)
{
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
- bfd_set_error (bfd_error_invalid_target);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
if (bfd_open_file (nbfd) == NULL)
{
- /* File didn't exist, or some such */
+ /* File didn't exist, or some such. */
bfd_set_error (bfd_error_system_call);
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
won't cause a storage leak.
o - We open the file stream last, since we don't want to have to
close it if anything goes wrong. Closing the stream means closing
- the file descriptor too, even though we didn't open it.
- */
+ the file descriptor too, even though we didn't open it. */
/*
FUNCTION
- bfd_fdopenr
+ bfd_fdopenr
SYNOPSIS
- bfd *bfd_fdopenr(CONST char *filename, CONST char *target, int fd);
+ bfd *bfd_fdopenr(const char *filename, const char *target, int fd);
DESCRIPTION
- <<bfd_fdopenr>> is to <<bfd_fopenr>> much like <<fdopen>> is to <<fopen>>.
- It opens a BFD on a file already described by the @var{fd}
- supplied.
-
- When the file is later <<bfd_close>>d, the file descriptor will be closed.
-
- If the caller desires that this file descriptor be cached by BFD
- (opened as needed, closed as needed to free descriptors for
- other opens), with the supplied @var{fd} used as an initial
- file descriptor (but subject to closure at any time), call
- bfd_set_cacheable(bfd, 1) on the returned BFD. The default is to
- assume no cacheing; the file descriptor will remain open until
- <<bfd_close>>, and will not be affected by BFD operations on other
- files.
-
- Possible errors are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> and <<bfd_error_system_call>>.
+ <<bfd_fdopenr>> is to <<bfd_fopenr>> much like <<fdopen>> is to
+ <<fopen>>. It opens a BFD on a file already described by the
+ @var{fd} supplied.
+
+ When the file is later <<bfd_close>>d, the file descriptor will
+ be closed. If the caller desires that this file descriptor be
+ cached by BFD (opened as needed, closed as needed to free
+ descriptors for other opens), with the supplied @var{fd} used as
+ an initial file descriptor (but subject to closure at any time),
+ call bfd_set_cacheable(bfd, 1) on the returned BFD. The default
+ is to assume no cacheing; the file descriptor will remain open
+ until <<bfd_close>>, and will not be affected by BFD operations
+ on other files.
+
+ Possible errors are <<bfd_error_no_memory>>,
+ <<bfd_error_invalid_target>> and <<bfd_error_system_call>>.
*/
bfd *
bfd_fdopenr (filename, target, fd)
- CONST char *filename;
- CONST char *target;
+ const char *filename;
+ const char *target;
int fd;
{
bfd *nbfd;
bfd_set_error (bfd_error_system_call);
#if ! defined(HAVE_FCNTL) || ! defined(F_GETFL)
- fdflags = O_RDWR; /* Assume full access */
+ fdflags = O_RDWR; /* Assume full access. */
#else
fdflags = fcntl (fd, F_GETFL, NULL);
#endif
- if (fdflags == -1) return NULL;
+ if (fdflags == -1)
+ return NULL;
nbfd = _bfd_new_bfd ();
if (nbfd == NULL)
target_vec = bfd_find_target (target, nbfd);
if (target_vec == NULL)
{
- bfd_set_error (bfd_error_invalid_target);
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
-#if defined(VMS) || defined(__GO32__)
- nbfd->iostream = (PTR)fopen(filename, FOPEN_RB);
+#ifndef HAVE_FDOPEN
+ nbfd->iostream = (PTR) fopen (filename, FOPEN_RB);
#else
- /* (O_ACCMODE) parens are to avoid Ultrix header file bug */
- switch (fdflags & (O_ACCMODE)) {
- case O_RDONLY: nbfd->iostream = (PTR) fdopen (fd, FOPEN_RB); break;
- case O_WRONLY: nbfd->iostream = (PTR) fdopen (fd, FOPEN_RUB); break;
- case O_RDWR: nbfd->iostream = (PTR) fdopen (fd, FOPEN_RUB); break;
- default: abort ();
- }
+ /* (O_ACCMODE) parens are to avoid Ultrix header file bug. */
+ switch (fdflags & (O_ACCMODE))
+ {
+ case O_RDONLY: nbfd->iostream = (PTR) fdopen (fd, FOPEN_RB); break;
+ case O_WRONLY: nbfd->iostream = (PTR) fdopen (fd, FOPEN_RUB); break;
+ case O_RDWR: nbfd->iostream = (PTR) fdopen (fd, FOPEN_RUB); break;
+ default: abort ();
+ }
#endif
if (nbfd->iostream == NULL)
{
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
- /* OK, put everything where it belongs */
-
+ /* OK, put everything where it belongs. */
nbfd->filename = filename;
/* As a special case we allow a FD open for read/write to
be written through, although doing so requires that we end
the previous clause with a preposition. */
- /* (O_ACCMODE) parens are to avoid Ultrix header file bug */
- switch (fdflags & O_ACCMODE)
+ /* (O_ACCMODE) parens are to avoid Ultrix header file bug. */
+ switch (fdflags & (O_ACCMODE))
{
case O_RDONLY: nbfd->direction = read_direction; break;
case O_WRONLY: nbfd->direction = write_direction; break;
if (! bfd_cache_init (nbfd))
{
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
- nbfd->opened_once = true;
+ nbfd->opened_once = TRUE;
return nbfd;
}
bfd_openstreamr
SYNOPSIS
- bfd *bfd_openstreamr();
+ bfd *bfd_openstreamr(const char *, const char *, PTR);
DESCRIPTION
*/
bfd *
-bfd_openstreamr (filename, target, stream)
+bfd_openstreamr (filename, target, streamarg)
const char *filename;
const char *target;
- FILE *stream;
+ PTR streamarg;
{
+ FILE *stream = (FILE *) streamarg;
bfd *nbfd;
const bfd_target *target_vec;
target_vec = bfd_find_target (target, nbfd);
if (target_vec == NULL)
{
- bfd_set_error (bfd_error_invalid_target);
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
nbfd->iostream = (PTR) stream;
nbfd->filename = filename;
nbfd->direction = read_direction;
-
+
if (! bfd_cache_init (nbfd))
{
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
return nbfd;
}
\f
-/** bfd_openw -- open for writing.
- Returns a pointer to a freshly-allocated BFD on success, or NULL.
+/* bfd_openw -- open for writing.
+ Returns a pointer to a freshly-allocated BFD on success, or NULL.
- See comment by bfd_fdopenr before you try to modify this function. */
+ See comment by bfd_fdopenr before you try to modify this function. */
/*
FUNCTION
bfd_openw
SYNOPSIS
- bfd *bfd_openw(CONST char *filename, CONST char *target);
+ bfd *bfd_openw(const char *filename, const char *target);
DESCRIPTION
Create a BFD, associated with file @var{filename}, using the
bfd *
bfd_openw (filename, target)
- CONST char *filename;
- CONST char *target;
+ const char *filename;
+ const char *target;
{
bfd *nbfd;
const bfd_target *target_vec;
- bfd_set_error (bfd_error_system_call);
-
/* nbfd has to point to head of malloc'ed block so that bfd_close may
- reclaim it correctly. */
-
+ reclaim it correctly. */
nbfd = _bfd_new_bfd ();
if (nbfd == NULL)
return NULL;
target_vec = bfd_find_target (target, nbfd);
if (target_vec == NULL)
{
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
if (bfd_open_file (nbfd) == NULL)
{
- bfd_set_error (bfd_error_system_call); /* File not writeable, etc */
- objalloc_free ((struct objalloc *) nbfd->memory);
- free (nbfd);
+ /* File not writeable, etc. */
+ bfd_set_error (bfd_error_system_call);
+ _bfd_delete_bfd (nbfd);
return NULL;
}
bfd_close
SYNOPSIS
- boolean bfd_close(bfd *abfd);
+ bfd_boolean bfd_close (bfd *abfd);
DESCRIPTION
- Close a BFD. If the BFD was open for writing,
- then pending operations are completed and the file written out
- and closed. If the created file is executable, then
- <<chmod>> is called to mark it as such.
+ Close a BFD. If the BFD was open for writing, then pending
+ operations are completed and the file written out and closed.
+ If the created file is executable, then <<chmod>> is called
+ to mark it as such.
All memory attached to the BFD is released.
if it was passed in to BFD by <<bfd_fdopenr>>).
RETURNS
- <<true>> is returned if all is ok, otherwise <<false>>.
+ <<TRUE>> is returned if all is ok, otherwise <<FALSE>>.
*/
-boolean
+bfd_boolean
bfd_close (abfd)
bfd *abfd;
{
- boolean ret;
+ bfd_boolean ret;
- if (!bfd_read_p (abfd))
+ if (bfd_write_p (abfd))
{
if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd)))
- return false;
+ return FALSE;
}
if (! BFD_SEND (abfd, _close_and_cleanup, (abfd)))
- return false;
+ return FALSE;
ret = bfd_cache_close (abfd);
/* If the file was open for writing and is now executable,
- make it so */
+ make it so. */
if (ret
&& abfd->direction == write_direction
&& abfd->flags & EXEC_P)
if (stat (abfd->filename, &buf) == 0)
{
- int mask = umask (0);
+ unsigned int mask = umask (0);
+
umask (mask);
chmod (abfd->filename,
(0777
}
}
- objalloc_free ((struct objalloc *) abfd->memory);
- free (abfd);
+ _bfd_delete_bfd (abfd);
return ret;
}
bfd_close_all_done
SYNOPSIS
- boolean bfd_close_all_done(bfd *);
+ bfd_boolean bfd_close_all_done (bfd *);
DESCRIPTION
- Close a BFD. Differs from <<bfd_close>>
- since it does not complete any pending operations. This
- routine would be used if the application had just used BFD for
- swapping and didn't want to use any of the writing code.
+ Close a BFD. Differs from <<bfd_close>> since it does not
+ complete any pending operations. This routine would be used
+ if the application had just used BFD for swapping and didn't
+ want to use any of the writing code.
If the created file is executable, then <<chmod>> is called
to mark it as such.
All memory attached to the BFD is released.
RETURNS
- <<true>> is returned if all is ok, otherwise <<false>>.
-
+ <<TRUE>> is returned if all is ok, otherwise <<FALSE>>.
*/
-boolean
+bfd_boolean
bfd_close_all_done (abfd)
bfd *abfd;
{
- boolean ret;
+ bfd_boolean ret;
ret = bfd_cache_close (abfd);
/* If the file was open for writing and is now executable,
- make it so */
+ make it so. */
if (ret
&& abfd->direction == write_direction
&& abfd->flags & EXEC_P)
if (stat (abfd->filename, &buf) == 0)
{
- int mask = umask (0);
+ unsigned int mask = umask (0);
+
umask (mask);
chmod (abfd->filename,
- (0x777
+ (0777
& (buf.st_mode | ((S_IXUSR | S_IXGRP | S_IXOTH) &~ mask))));
}
}
- objalloc_free ((struct objalloc *) abfd->memory);
- free (abfd);
+ _bfd_delete_bfd (abfd);
return ret;
}
bfd_create
SYNOPSIS
- bfd *bfd_create(CONST char *filename, bfd *templ);
+ bfd *bfd_create(const char *filename, bfd *templ);
DESCRIPTION
- Create a new BFD in the manner of
- <<bfd_openw>>, but without opening a file. The new BFD
- takes the target from the target used by @var{template}. The
- format is always set to <<bfd_object>>.
-
+ Create a new BFD in the manner of <<bfd_openw>>, but without
+ opening a file. The new BFD takes the target from the target
+ used by @var{template}. The format is always set to <<bfd_object>>.
*/
bfd *
bfd_create (filename, templ)
- CONST char *filename;
+ const char *filename;
bfd *templ;
{
bfd *nbfd;
nbfd->xvec = templ->xvec;
nbfd->direction = no_direction;
bfd_set_format (nbfd, bfd_object);
+
return nbfd;
}
+/*
+FUNCTION
+ bfd_make_writable
+
+SYNOPSIS
+ bfd_boolean bfd_make_writable (bfd *abfd);
+
+DESCRIPTION
+ Takes a BFD as created by <<bfd_create>> and converts it
+ into one like as returned by <<bfd_openw>>. It does this
+ by converting the BFD to BFD_IN_MEMORY. It's assumed that
+ you will call <<bfd_make_readable>> on this bfd later.
+
+RETURNS
+ <<TRUE>> is returned if all is ok, otherwise <<FALSE>>.
+*/
+
+bfd_boolean
+bfd_make_writable(abfd)
+ bfd *abfd;
+{
+ struct bfd_in_memory *bim;
+
+ if (abfd->direction != no_direction)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+
+ bim = ((struct bfd_in_memory *)
+ bfd_malloc ((bfd_size_type) sizeof (struct bfd_in_memory)));
+ abfd->iostream = (PTR) bim;
+ /* bfd_bwrite will grow these as needed. */
+ bim->size = 0;
+ bim->buffer = 0;
+
+ abfd->flags |= BFD_IN_MEMORY;
+ abfd->direction = write_direction;
+ abfd->where = 0;
+
+ return TRUE;
+}
+
+/*
+FUNCTION
+ bfd_make_readable
+
+SYNOPSIS
+ bfd_boolean bfd_make_readable (bfd *abfd);
+
+DESCRIPTION
+ Takes a BFD as created by <<bfd_create>> and
+ <<bfd_make_writable>> and converts it into one like as
+ returned by <<bfd_openr>>. It does this by writing the
+ contents out to the memory buffer, then reversing the
+ direction.
+
+RETURNS
+ <<TRUE>> is returned if all is ok, otherwise <<FALSE>>. */
+
+bfd_boolean
+bfd_make_readable(abfd)
+ bfd *abfd;
+{
+ if (abfd->direction != write_direction || !(abfd->flags & BFD_IN_MEMORY))
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+
+ if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd)))
+ return FALSE;
+
+ if (! BFD_SEND (abfd, _close_and_cleanup, (abfd)))
+ return FALSE;
+
+
+ abfd->arch_info = &bfd_default_arch_struct;
+
+ abfd->where = 0;
+ abfd->format = bfd_unknown;
+ abfd->my_archive = (bfd *) NULL;
+ abfd->origin = 0;
+ abfd->opened_once = FALSE;
+ abfd->output_has_begun = FALSE;
+ abfd->section_count = 0;
+ abfd->usrdata = (PTR) NULL;
+ abfd->cacheable = FALSE;
+ abfd->flags = BFD_IN_MEMORY;
+ abfd->mtime_set = FALSE;
+
+ abfd->target_defaulted = TRUE;
+ abfd->direction = read_direction;
+ abfd->sections = 0;
+ abfd->symcount = 0;
+ abfd->outsymbols = 0;
+ abfd->tdata.any = 0;
+
+ bfd_section_list_clear (abfd);
+ bfd_check_format (abfd, bfd_object);
+
+ return TRUE;
+}
+
/*
INTERNAL_FUNCTION
bfd_alloc
PTR
bfd_alloc (abfd, size)
bfd *abfd;
- size_t size;
+ bfd_size_type size;
{
PTR ret;
+ if (size != (unsigned long) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
ret = objalloc_alloc (abfd->memory, (unsigned long) size);
if (ret == NULL)
bfd_set_error (bfd_error_no_memory);
PTR
bfd_zalloc (abfd, size)
bfd *abfd;
- size_t size;
+ bfd_size_type size;
{
PTR res;
res = bfd_alloc (abfd, size);
if (res)
- memset (res, 0, size);
+ memset (res, 0, (size_t) size);
return res;
}
-/* Free a block allocated for a BFD. */
+/* Free a block allocated for a BFD.
+ Note: Also frees all more recently allocated blocks! */
void
bfd_release (abfd, block)
projects / deliverable / binutils-gdb.git / blobdiff