1 /* Very simple "bfd" target, for GDB, the GNU debugger.
3 Copyright 2003 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
24 #include "bfd-target.h"
25 #include "gdb_assert.h"
26 #include "gdb_string.h"
28 /* Locate all mappable sections of a BFD file, filling in a target
31 struct section_closure
33 struct section_table
*end
;
37 add_to_section_table (struct bfd
*abfd
, struct bfd_section
*asect
,
40 struct section_closure
*pp
= closure
;
43 /* NOTE: cagney/2003-10-22: Is this pruning useful? */
44 aflag
= bfd_get_section_flags (abfd
, asect
);
45 if (!(aflag
& SEC_ALLOC
))
47 if (bfd_section_size (abfd
, asect
) == 0)
50 pp
->end
->the_bfd_section
= asect
;
51 pp
->end
->addr
= bfd_section_vma (abfd
, asect
);
52 pp
->end
->endaddr
= pp
->end
->addr
+ bfd_section_size (abfd
, asect
);
57 build_target_sections_from_bfd (struct target_ops
*targ
, struct bfd
*abfd
)
60 struct section_table
*start
;
61 struct section_closure cl
;
63 count
= bfd_count_sections (abfd
);
64 target_resize_to_sections (targ
, count
);
65 start
= targ
->to_sections
;
66 cl
.end
= targ
->to_sections
;
67 bfd_map_over_sections (abfd
, add_to_section_table
, &cl
);
68 gdb_assert (cl
.end
- start
<= count
);
72 target_bfd_xfer_partial (struct target_ops
*ops
,
73 enum target_object object
,
74 const char *annex
, void *readbuf
,
75 const void *writebuf
, ULONGEST offset
, LONGEST len
)
79 case TARGET_OBJECT_MEMORY
:
81 struct section_table
*s
= target_section_by_addr (ops
, offset
);
84 /* If the length extends beyond the section, truncate it. Be
85 careful to not suffer from overflow (wish S contained a
87 if ((offset
- s
->addr
+ len
) > (s
->endaddr
- s
->addr
))
88 len
= (s
->endaddr
- s
->addr
) - (offset
- s
->addr
);
90 && !bfd_get_section_contents (s
->bfd
, s
->the_bfd_section
,
91 readbuf
, offset
- s
->addr
, len
))
97 /* FIXME: cagney/2003-10-31: The BFD interface doesn't yet
98 take a const buffer. */
100 && !bfd_set_section_contents (s
->bfd
, s
->the_bfd_section
,
101 writebuf
, offset
- s
->addr
, len
))
112 target_bfd_xclose (struct target_ops
*t
, int quitting
)
114 bfd_close (t
->to_data
);
115 xfree (t
->to_sections
);
120 target_bfd_reopen (struct bfd
*bfd
)
122 struct target_ops
*t
= XZALLOC (struct target_ops
);
123 t
->to_shortname
= "bfd";
124 t
->to_longname
= "BFD backed target";
125 t
->to_doc
= "You should never see this";
126 t
->to_xfer_partial
= target_bfd_xfer_partial
;
127 t
->to_xclose
= target_bfd_xclose
;
129 build_target_sections_from_bfd (t
, bfd
);
This page took 0.031865 seconds and 4 git commands to generate.