/* opncls.c -- open and close a BFD.
- Copyright (C) 1990 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
+ 2001
+ Free Software Foundation, Inc.
+
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
#include "bfd.h"
#include "sysdep.h"
+#include "objalloc.h"
#include "libbfd.h"
-#include "obstack.h"
#ifndef S_IXUSR
#define S_IXUSR 0100 /* Execute by owner. */
/* fdopen is a loser -- we should use stdio exclusively. Unfortunately
if we do that we can't use fcntl. */
-
-#define obstack_chunk_alloc malloc
-#define obstack_chunk_free free
-
-#ifndef HAVE_GETPAGESIZE
-#define getpagesize() 2048
-#endif
-
+/* FIXME: This is no longer used. */
long _bfd_chunksize = -1;
/* Return a new BFD. All BFD's are allocated through this routine. */
{
bfd *nbfd;
- nbfd = (bfd *)bfd_zmalloc (sizeof (bfd));
- if (!nbfd)
- return 0;
-
- if (_bfd_chunksize <= 0)
- {
- _bfd_chunksize = getpagesize ();
- if (_bfd_chunksize <= 0)
- _bfd_chunksize = 2048;
- /* Leave some slush space, since many malloc implementations
- prepend a header, and may wind up wasting another page
- because of it. */
- _bfd_chunksize -= 32;
- }
+ nbfd = (bfd *) bfd_zmalloc ((bfd_size_type) sizeof (bfd));
+ if (nbfd == NULL)
+ return NULL;
- if (!obstack_begin(&nbfd->memory, _bfd_chunksize))
+ nbfd->memory = (PTR) objalloc_create ();
+ if (nbfd->memory == NULL)
{
bfd_set_error (bfd_error_no_memory);
- return 0;
+ 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->usrdata = (PTR) NULL;
nbfd->cacheable = false;
- nbfd->flags = NO_FLAGS;
+ nbfd->flags = BFD_NO_FLAGS;
nbfd->mtime_set = false;
return nbfd;
{
bfd *nbfd;
- nbfd = _bfd_new_bfd();
+ nbfd = _bfd_new_bfd ();
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
bfd *
bfd_openr (filename, target)
- CONST char *filename;
- CONST char *target;
+ const char *filename;
+ const char *target;
{
bfd *nbfd;
const bfd_target *target_vec;
- nbfd = _bfd_new_bfd();
+ 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);
- 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;
- if (bfd_open_file (nbfd) == NULL) {
- bfd_set_error (bfd_error_system_call); /* File didn't exist, or some such */
- bfd_release(nbfd,0);
- return NULL;
- }
+ 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;
+ }
+
return nbfd;
}
-
/* Don't try to `optimize' this function:
o - We lock using stack space so that interrupting the locking
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 *
bfd_fdopenr (filename, target, fd)
- CONST char *filename;
- CONST char *target;
+ const char *filename;
+ const char *target;
int fd;
{
bfd *nbfd;
#endif
if (fdflags == -1) return NULL;
- nbfd = _bfd_new_bfd();
-
+ 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);
- return NULL;
- }
-#if defined(VMS) || defined(__GO32__) || defined (WINGDB)
- nbfd->iostream = (PTR)fopen(filename, 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
/* (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 ();
- }
+ 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;
- }
+
+ if (nbfd->iostream == NULL)
+ {
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
/* OK, put everything where it belongs */
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 ();
- }
-
+ 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))
- return NULL;
+ {
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
+ 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;
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))
- return NULL;
+ {
+ _bfd_delete_bfd (nbfd);
+ return NULL;
+ }
return nbfd;
}
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;
/* nbfd has to point to head of malloc'ed block so that bfd_close may
reclaim it correctly. */
- nbfd = _bfd_new_bfd();
+ 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_set_error (bfd_error_system_call); /* File not writeable, etc */
- (void) obstack_free (&nbfd->memory, (PTR)0);
- return NULL;
+ if (bfd_open_file (nbfd) == NULL)
+ {
+ bfd_set_error (bfd_error_system_call); /* File not writeable, etc */
+ _bfd_delete_bfd (nbfd);
+ return NULL;
}
+
return nbfd;
}
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>>).
if (stat (abfd->filename, &buf) == 0)
{
- int mask = umask (0);
+ unsigned int mask = umask (0);
umask (mask);
chmod (abfd->filename,
(0777
}
}
- (void) obstack_free (&abfd->memory, (PTR)0);
- (void) free (abfd);
+ _bfd_delete_bfd (abfd);
return ret;
}
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>>.
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))));
}
}
- (void) obstack_free (&abfd->memory, (PTR)0);
- (void) free(abfd);
- return ret;
-}
-
-
-/*
-FUNCTION
- bfd_alloc_size
-
-SYNOPSIS
- bfd_size_type bfd_alloc_size(bfd *abfd);
-DESCRIPTION
- Return the number of bytes in the obstacks connected to @var{abfd}.
-
-*/
+ _bfd_delete_bfd (abfd);
-bfd_size_type
-bfd_alloc_size (abfd)
- bfd *abfd;
-{
- struct _obstack_chunk *chunk = abfd->memory.chunk;
- size_t size = 0;
- while (chunk) {
- size += chunk->limit - &(chunk->contents[0]);
- chunk = chunk->prev;
- }
- return size;
+ return ret;
}
-
-
/*
FUNCTION
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 *
bfd_create (filename, templ)
- CONST char *filename;
+ const char *filename;
bfd *templ;
{
- bfd *nbfd = _bfd_new_bfd();
- if (nbfd == (bfd *)NULL)
- return (bfd *)NULL;
+ bfd *nbfd;
+
+ nbfd = _bfd_new_bfd ();
+ if (nbfd == NULL)
+ return NULL;
nbfd->filename = filename;
- if(templ) {
+ if (templ)
nbfd->xvec = templ->xvec;
- }
nbfd->direction = no_direction;
- bfd_set_format(nbfd, bfd_object);
+ bfd_set_format (nbfd, bfd_object);
return nbfd;
}
/*
-INTERNAL_FUNCTION
- bfd_alloc_by_size_t
+FUNCTION
+ bfd_make_writable
SYNOPSIS
- PTR bfd_alloc_by_size_t(bfd *abfd, size_t wanted);
+ boolean bfd_make_writable(bfd *abfd);
DESCRIPTION
- Allocate a block of @var{wanted} bytes of memory in the obstack
- attatched to <<abfd>> and return a pointer to it.
-*/
+ 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>>.
+*/
-PTR
-bfd_alloc_by_size_t (abfd, size)
+boolean
+bfd_make_writable(abfd)
bfd *abfd;
- size_t size;
{
- PTR ret;
+ struct bfd_in_memory *bim;
- ret = obstack_alloc (&(abfd->memory), size);
- if (ret == NULL)
- bfd_set_error (bfd_error_no_memory);
- return ret;
+ 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;
}
-void
-bfd_alloc_grow (abfd, ptr, size)
+/*
+FUNCTION
+ bfd_make_readable
+
+SYNOPSIS
+ 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>>. */
+
+boolean
+bfd_make_readable(abfd)
bfd *abfd;
- PTR ptr;
- size_t size;
{
- (void) obstack_grow(&(abfd->memory), ptr, size);
+ 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->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_finish (abfd)
+bfd_alloc (abfd, size)
bfd *abfd;
+ bfd_size_type size;
{
PTR ret;
- ret = obstack_finish (&(abfd->memory));
+ 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_alloc (abfd, size)
- bfd *abfd;
- size_t size;
-{
- return bfd_alloc_by_size_t(abfd, (size_t)size);
-}
-
PTR
bfd_zalloc (abfd, size)
bfd *abfd;
- size_t size;
+ bfd_size_type size;
{
PTR res;
- res = bfd_alloc(abfd, size);
+
+ res = bfd_alloc (abfd, size);
if (res)
- memset(res, 0, (size_t)size);
+ 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