/* opncls.c -- open and close a BFD.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
- Written by Cygnus Support.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
+ 2001, 2002
+ Free Software Foundation, Inc.
-This file is part of BFD, the Binary File Descriptor library.
+ Written by Cygnus Support.
-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 file is part of BFD, the Binary File Descriptor library.
-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 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.
-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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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.
-/* $Id$ */
+ 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"
+#include "objalloc.h"
#include "libbfd.h"
-#include "obstack.h"
-extern void bfd_cache_init();
-FILE *bfd_open_file();
+
+#ifndef S_IXUSR
+#define S_IXUSR 0100 /* Execute by owner. */
+#endif
+#ifndef S_IXGRP
+#define S_IXGRP 0010 /* Execute by group. */
+#endif
+#ifndef S_IXOTH
+#define S_IXOTH 0001 /* Execute by others. */
+#endif
/* fdopen is a loser -- we should use stdio exclusively. Unfortunately
if we do that we can't use fcntl. */
-
-#define obstack_chunk_alloc bfd_xmalloc
-#define obstack_chunk_free free
-
/* Return a new BFD. All BFD's are allocated through this routine. */
-bfd *new_bfd()
+bfd *
+_bfd_new_bfd ()
{
bfd *nbfd;
- nbfd = (bfd *)zalloc (sizeof (bfd));
- if (!nbfd)
- return 0;
+ nbfd = (bfd *) bfd_zmalloc ((bfd_size_type) sizeof (bfd));
+ if (nbfd == NULL)
+ return NULL;
- bfd_check_init();
- obstack_begin((PTR)&nbfd->memory, 128);
+ nbfd->memory = (PTR) objalloc_create ();
+ if (nbfd->memory == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ free (nbfd);
+ return NULL;
+ }
nbfd->arch_info = &bfd_default_arch_struct;
nbfd->direction = no_direction;
nbfd->iostream = NULL;
nbfd->where = 0;
- nbfd->sections = (asection *)NULL;
+ if (!bfd_hash_table_init (&nbfd->section_htab, bfd_section_hash_newfunc))
+ {
+ 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->my_archive = (bfd *) NULL;
+ nbfd->origin = 0;
nbfd->opened_once = false;
nbfd->output_has_begun = false;
nbfd->section_count = 0;
- nbfd->usrdata = (PTR)NULL;
- nbfd->sections = (asection *)NULL;
+ nbfd->usrdata = (PTR) NULL;
nbfd->cacheable = false;
- nbfd->flags = NO_FLAGS;
+ nbfd->flags = BFD_NO_FLAGS;
nbfd->mtime_set = false;
-
return nbfd;
}
/* Allocate a new BFD as a member of archive OBFD. */
-bfd *new_bfd_contained_in(obfd)
-bfd *obfd;
+bfd *
+_bfd_new_bfd_contained_in (obfd)
+ bfd *obfd;
{
- bfd *nbfd = new_bfd();
- nbfd->xvec = obfd->xvec;
- nbfd->my_archive = obfd;
- nbfd->direction = read_direction;
- nbfd->target_defaulted = obfd->target_defaulted;
- return nbfd;
+ bfd *nbfd;
+
+ nbfd = _bfd_new_bfd ();
+ nbfd->xvec = obfd->xvec;
+ nbfd->my_archive = obfd;
+ nbfd->direction = read_direction;
+ nbfd->target_defaulted = obfd->target_defaulted;
+ 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
+ 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
- This function opens the file supplied (using <<fopen>>) with the target
- supplied, it returns a pointer to the created BFD.
+ Open the file @var{filename} (using <<fopen>>) with the target
+ @var{target}. Return a pointer to the created BFD.
+
+ Calls <<bfd_find_target>>, so @var{target} is interpreted as by
+ that function.
- If NULL is returned then an error has occured. Possible errors
- are <<no_memory>>, <<invalid_target>> or <<system_call>> error.
+ If <<NULL>> is returned then an error has occured. Possible errors
+ are <<bfd_error_no_memory>>, <<bfd_error_invalid_target>> or <<system_call>> error.
*/
bfd *
-DEFUN(bfd_openr, (filename, target),
- CONST char *filename AND
- CONST char *target)
+bfd_openr (filename, target)
+ const char *filename;
+ const char *target;
{
bfd *nbfd;
- bfd_target *target_vec;
+ const bfd_target *target_vec;
- nbfd = new_bfd();
- if (nbfd == NULL) {
- bfd_error = no_memory;
+ nbfd = _bfd_new_bfd ();
+ if (nbfd == NULL)
return NULL;
- }
target_vec = bfd_find_target (target, nbfd);
- if (target_vec == NULL) {
- bfd_error = invalid_target;
- return NULL;
- }
+ if (target_vec == NULL)
+ {
+ bfd_set_error (bfd_error_invalid_target);
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
nbfd->filename = filename;
- nbfd->direction = read_direction;
+ nbfd->direction = read_direction;
+
+ if (bfd_open_file (nbfd) == NULL)
+ {
+ /* File didn't exist, or some such. */
+ bfd_set_error (bfd_error_system_call);
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
- if (bfd_open_file (nbfd) == NULL) {
- bfd_error = system_call_error; /* File didn't exist, or some such */
- bfd_release(nbfd,0);
- return NULL;
- }
return nbfd;
}
-
/* Don't try to `optimize' this function:
o - We lock using stack space so that interrupting the locking
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
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.
+ <<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.
+ supplied.
+
+ When the file is later <<bfd_close>>d, the file descriptor will be closed.
- Possible errors are no_memory, invalid_target and system_call
- error.
+ 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 *
-DEFUN(bfd_fdopenr,(filename, target, fd),
- CONST char *filename AND
- CONST char *target AND
- int fd)
+bfd_fdopenr (filename, target, fd)
+ const char *filename;
+ const char *target;
+ int fd;
{
bfd *nbfd;
- bfd_target *target_vec;
+ const bfd_target *target_vec;
int fdflags;
- bfd_error = system_call_error;
-
-#ifdef NO_FCNTL
- fdflags = O_RDWR; /* Assume full access */
+ bfd_set_error (bfd_error_system_call);
+#if ! defined(HAVE_FCNTL) || ! defined(F_GETFL)
+ fdflags = O_RDWR; /* Assume full access. */
#else
fdflags = fcntl (fd, F_GETFL, NULL);
#endif
if (fdflags == -1) return NULL;
- nbfd = new_bfd();
-
- if (nbfd == NULL) {
- bfd_error = no_memory;
+ nbfd = _bfd_new_bfd ();
+ if (nbfd == NULL)
return NULL;
- }
target_vec = bfd_find_target (target, nbfd);
- if (target_vec == NULL) {
- bfd_error = invalid_target;
- return NULL;
- }
-
-#ifdef FASCIST_FDOPEN
- nbfd->iostream = (char *) fdopen (fd, FOPEN_RB);
+ if (target_vec == NULL)
+ {
+ bfd_set_error (bfd_error_invalid_target);
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
+
+#ifndef HAVE_FDOPEN
+ nbfd->iostream = (PTR) fopen (filename, FOPEN_RB);
#else
- /* if the fd were open for read only, this still would not hurt: */
- nbfd->iostream = (char *) fdopen (fd, FOPEN_RUB);
+ /* (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) {
- (void) obstack_free (&nbfd->memory, (PTR)0);
- return NULL;
- }
-
- /* OK, put everything where it belongs */
+ if (nbfd->iostream == NULL)
+ {
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
+
+ /* 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)) {
- case O_RDONLY: nbfd->direction = read_direction; break;
- case O_WRONLY: nbfd->direction = write_direction; break;
- case O_RDWR: nbfd->direction = both_direction; break;
- default: abort ();
- }
-
- bfd_cache_init (nbfd);
+ /* (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;
+ case O_RDWR: nbfd->direction = both_direction; break;
+ default: abort ();
+ }
+
+ if (! bfd_cache_init (nbfd))
+ {
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
+ nbfd->opened_once = true;
+
+ return nbfd;
+}
+
+/*
+FUNCTION
+ bfd_openstreamr
+
+SYNOPSIS
+ bfd *bfd_openstreamr(const char *, const char *, PTR);
+
+DESCRIPTION
+
+ Open a BFD for read access on an existing stdio stream. When
+ the BFD is passed to <<bfd_close>>, the stream will be closed.
+*/
+
+bfd *
+bfd_openstreamr (filename, target, streamarg)
+ const char *filename;
+ const char *target;
+ PTR streamarg;
+{
+ FILE *stream = (FILE *) streamarg;
+ bfd *nbfd;
+ const bfd_target *target_vec;
+
+ nbfd = _bfd_new_bfd ();
+ if (nbfd == NULL)
+ return NULL;
+
+ target_vec = bfd_find_target (target, nbfd);
+ if (target_vec == NULL)
+ {
+ bfd_set_error (bfd_error_invalid_target);
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
+
+ nbfd->iostream = (PTR) stream;
+ nbfd->filename = filename;
+ nbfd->direction = read_direction;
+
+ if (! bfd_cache_init (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
- Creates a BFD, associated with file @var{filename}, using the
- file format @var{target}, and returns a pointer to it.
+ Create a BFD, associated with file @var{filename}, using the
+ file format @var{target}, and return a pointer to it.
- Possible errors are system_call_error, no_memory,
- invalid_target.
+ Possible errors are <<bfd_error_system_call>>, <<bfd_error_no_memory>>,
+ <<bfd_error_invalid_target>>.
*/
bfd *
-DEFUN(bfd_openw,(filename, target),
- CONST char *filename AND
- CONST char *target)
+bfd_openw (filename, target)
+ const char *filename;
+ const char *target;
{
bfd *nbfd;
- bfd_target *target_vec;
-
- bfd_error = system_call_error;
+ const bfd_target *target_vec;
- /* nbfd has to point to head of malloc'ed block so that bfd_close may
- reclaim it correctly. */
+ bfd_set_error (bfd_error_system_call);
- nbfd = new_bfd();
- if (nbfd == NULL) {
- bfd_error = no_memory;
+ /* nbfd has to point to head of malloc'ed block so that bfd_close may
+ reclaim it correctly. */
+ nbfd = _bfd_new_bfd ();
+ if (nbfd == NULL)
return NULL;
- }
target_vec = bfd_find_target (target, nbfd);
- if (target_vec == NULL) return NULL;
+ if (target_vec == NULL)
+ {
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
nbfd->filename = filename;
nbfd->direction = write_direction;
- if (bfd_open_file (nbfd) == NULL) {
- bfd_error = system_call_error; /* File not writeable, etc */
- (void) obstack_free (&nbfd->memory, (PTR)0);
- return NULL;
+ if (bfd_open_file (nbfd) == NULL)
+ {
+ /* File not writeable, etc. */
+ bfd_set_error (bfd_error_system_call);
+ _bfd_delete_bfd (nbfd);
+ return NULL;
}
+
return nbfd;
}
bfd_close
SYNOPSIS
- boolean bfd_close(bfd *);
+ boolean bfd_close(bfd *abfd);
DESCRIPTION
- This function closes a BFD. If the BFD was open for writing,
+ 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's obstacks is released.
+ All memory attached to the BFD is released.
+
+ The file descriptor associated with the BFD is closed (even
+ if it was passed in to BFD by <<bfd_fdopenr>>).
RETURNS
<<true>> is returned if all is ok, otherwise <<false>>.
boolean
-DEFUN(bfd_close,(abfd),
- bfd *abfd)
+bfd_close (abfd)
+ bfd *abfd;
{
- if (!bfd_read_p(abfd))
- if (BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd)) != true)
- return false;
+ boolean ret;
- if (BFD_SEND (abfd, _close_and_cleanup, (abfd)) != true) return false;
+ if (bfd_write_p (abfd))
+ {
+ if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd)))
+ return false;
+ }
- bfd_cache_close(abfd);
+ if (! BFD_SEND (abfd, _close_and_cleanup, (abfd)))
+ return false;
- /* If the file was open for writing and is now executable,
- make it so */
- if (abfd->direction == write_direction
- && abfd->flags & EXEC_P) {
- struct stat buf;
- stat(abfd->filename, &buf);
-#ifndef S_IXUSR
-#define S_IXUSR 0100 /* Execute by owner. */
-#endif
-#ifndef S_IXGRP
-#define S_IXGRP 0010 /* Execute by group. */
-#endif
-#ifndef S_IXOTH
-#define S_IXOTH 0001 /* Execute by others. */
-#endif
+ ret = bfd_cache_close (abfd);
- chmod(abfd->filename, 0777 & (buf.st_mode | S_IXUSR | S_IXGRP | S_IXOTH));
- }
- (void) obstack_free (&abfd->memory, (PTR)0);
- (void) free(abfd);
- return true;
+ /* If the file was open for writing and is now executable,
+ make it so. */
+ if (ret
+ && abfd->direction == write_direction
+ && abfd->flags & EXEC_P)
+ {
+ struct stat buf;
+
+ if (stat (abfd->filename, &buf) == 0)
+ {
+ unsigned int mask = umask (0);
+
+ umask (mask);
+ chmod (abfd->filename,
+ (0777
+ & (buf.st_mode | ((S_IXUSR | S_IXGRP | S_IXOTH) &~ mask))));
+ }
+ }
+
+ _bfd_delete_bfd (abfd);
+
+ return ret;
}
/*
boolean bfd_close_all_done(bfd *);
DESCRIPTION
- This function closes a BFD. It differs from <<bfd_close>>
+ 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's obstacks is released.
+ All memory attached to the BFD is released.
RETURNS
<<true>> is returned if all is ok, otherwise <<false>>.
-
*/
boolean
-DEFUN(bfd_close_all_done,(abfd),
- bfd *abfd)
+bfd_close_all_done (abfd)
+ bfd *abfd;
{
- bfd_cache_close(abfd);
+ boolean ret;
- /* If the file was open for writing and is now executable,
- make it so */
- if (abfd->direction == write_direction
- && abfd->flags & EXEC_P) {
- struct stat buf;
- stat(abfd->filename, &buf);
-#ifndef S_IXUSR
-#define S_IXUSR 0100 /* Execute by owner. */
-#endif
-#ifndef S_IXGRP
-#define S_IXGRP 0010 /* Execute by group. */
-#endif
-#ifndef S_IXOTH
-#define S_IXOTH 0001 /* Execute by others. */
-#endif
+ ret = bfd_cache_close (abfd);
- chmod(abfd->filename, 0x777 &(buf.st_mode | S_IXUSR | S_IXGRP | S_IXOTH));
- }
- (void) obstack_free (&abfd->memory, (PTR)0);
- (void) free(abfd);
- return true;
+ /* If the file was open for writing and is now executable,
+ make it so. */
+ if (ret
+ && abfd->direction == write_direction
+ && abfd->flags & EXEC_P)
+ {
+ struct stat buf;
+
+ if (stat (abfd->filename, &buf) == 0)
+ {
+ unsigned int mask = umask (0);
+
+ umask (mask);
+ chmod (abfd->filename,
+ (0777
+ & (buf.st_mode | ((S_IXUSR | S_IXGRP | S_IXOTH) &~ mask))));
+ }
+ }
+
+ _bfd_delete_bfd (abfd);
+
+ return ret;
}
-
/*
-FUNCTION
- bfd_alloc_size
+FUNCTION
+ bfd_create
SYNOPSIS
- bfd_size_type bfd_alloc_size(bfd *abfd);
+ bfd *bfd_create(const char *filename, bfd *templ);
DESCRIPTION
- Return the number of bytes in the obstacks connected to the
- supplied BFD.
-
+ 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_size_type
-DEFUN(bfd_alloc_size,(abfd),
- bfd *abfd)
+bfd *
+bfd_create (filename, templ)
+ const char *filename;
+ bfd *templ;
{
- struct _obstack_chunk *chunk = abfd->memory.chunk;
- size_t size = 0;
- while (chunk) {
- size += chunk->limit - &(chunk->contents[0]);
- chunk = chunk->prev;
- }
- return size;
-}
+ bfd *nbfd;
+ nbfd = _bfd_new_bfd ();
+ if (nbfd == NULL)
+ return NULL;
+ nbfd->filename = filename;
+ if (templ)
+ nbfd->xvec = templ->xvec;
+ nbfd->direction = no_direction;
+ bfd_set_format (nbfd, bfd_object);
+ return nbfd;
+}
/*
FUNCTION
- bfd_create
+ bfd_make_writable
SYNOPSIS
- bfd *bfd_create(CONST char *filename, bfd *template);
+ boolean bfd_make_writable(bfd *abfd);
DESCRIPTION
- This routine creates 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>>.
+ 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 *
-DEFUN(bfd_create,(filename, template),
- CONST char *filename AND
- bfd *template)
+boolean
+bfd_make_writable(abfd)
+ bfd *abfd;
{
- bfd *nbfd = new_bfd();
- if (nbfd == (bfd *)NULL) {
- bfd_error = no_memory;
- return (bfd *)NULL;
- }
- nbfd->filename = filename;
- if(template) {
- nbfd->xvec = template->xvec;
- }
- nbfd->direction = no_direction;
- bfd_set_format(nbfd, bfd_object);
- return nbfd;
+ 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;
}
-/*
-INTERNAL_FUNCTION
- bfd_alloc_by_size_t
+/*
+FUNCTION
+ bfd_make_readable
SYNOPSIS
- PTR bfd_alloc_by_size_t(bfd *abfd, size_t wanted);
+ boolean bfd_make_readable(bfd *abfd);
DESCRIPTION
- This function allocates a block of memory in the obstack
- attatched to <<abfd>> and returns a pointer to it.
-*/
+ 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>>. */
-PTR
-DEFUN(bfd_alloc_by_size_t,(abfd, size),
- bfd *abfd AND
- size_t size)
+boolean
+bfd_make_readable(abfd)
+ bfd *abfd;
{
- PTR res = obstack_alloc(&(abfd->memory), size);
- return res;
-}
+ if (abfd->direction != write_direction || !(abfd->flags & BFD_IN_MEMORY))
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return false;
+ }
-DEFUN(void bfd_alloc_grow,(abfd, ptr, size),
- bfd *abfd AND
- PTR ptr AND
- bfd_size_type size)
-{
- (void) obstack_grow(&(abfd->memory), ptr, size);
-}
-DEFUN(PTR bfd_alloc_finish,(abfd),
- bfd *abfd)
-{
- return obstack_finish(&(abfd->memory));
-}
+ if (! BFD_SEND_FMT (abfd, _bfd_write_contents, (abfd)))
+ return false;
-DEFUN(PTR bfd_alloc, (abfd, size),
- bfd *abfd AND
- bfd_size_type size)
-{
- return bfd_alloc_by_size_t(abfd, (size_t)size);
-}
+ if (! BFD_SEND (abfd, _close_and_cleanup, (abfd)))
+ return false;
-DEFUN(PTR bfd_zalloc,(abfd, size),
- bfd *abfd AND
- bfd_size_type size)
-{
- PTR res = bfd_alloc(abfd, size);
- memset(res, 0, (size_t)size);
- return res;
-}
-DEFUN(PTR bfd_realloc,(abfd, old, size),
- bfd *abfd AND
- PTR old AND
- bfd_size_type size)
-{
- PTR res = bfd_alloc(abfd, size);
- memcpy(res, old, (size_t)size);
- return res;
-}
+ abfd->arch_info = &bfd_default_arch_struct;
+ abfd->where = 0;
+ abfd->sections = (asection *) NULL;
+ 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_check_format(abfd, bfd_object);
+ return true;
+}
+/*
+INTERNAL_FUNCTION
+ bfd_alloc
+SYNOPSIS
+ PTR bfd_alloc (bfd *abfd, size_t wanted);
+DESCRIPTION
+ Allocate a block of @var{wanted} bytes of memory attached to
+ <<abfd>> and return a pointer to it.
+*/
+PTR
+bfd_alloc (abfd, size)
+ bfd *abfd;
+ 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);
+ return ret;
+}
+
+PTR
+bfd_zalloc (abfd, size)
+ bfd *abfd;
+ bfd_size_type size;
+{
+ PTR res;
+
+ res = bfd_alloc (abfd, size);
+ if (res)
+ memset (res, 0, (size_t) size);
+ return res;
+}
+
+/* Free a block allocated for a BFD.
+ Note: Also frees all more recently allocated blocks! */
+void
+bfd_release (abfd, block)
+ bfd *abfd;
+ PTR block;
+{
+ objalloc_free_block ((struct objalloc *) abfd->memory, block);
+}
projects / deliverable / binutils-gdb.git / blobdiff