1054 lines
26 KiB
C
1054 lines
26 KiB
C
/* BFD back-end for Intel Hex objects.
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Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004
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Free Software Foundation, Inc.
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Written by Ian Lance Taylor of Cygnus Support <ian@cygnus.com>.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* This is what Intel Hex files look like:
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1. INTEL FORMATS
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A. Intel 1
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16-bit address-field format, for files 64k bytes in length or less.
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DATA RECORD
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Byte 1 Header = colon(:)
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2..3 The number of data bytes in hex notation
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4..5 High byte of the record load address
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6..7 Low byte of the record load address
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8..9 Record type, must be "00"
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10..x Data bytes in hex notation:
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x = (number of bytes - 1) * 2 + 11
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x+1..x+2 Checksum in hex notation
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x+3..x+4 Carriage return, line feed
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END RECORD
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Byte 1 Header = colon (:)
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2..3 The byte count, must be "00"
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4..7 Transfer-address (usually "0000")
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the jump-to address, execution start address
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8..9 Record type, must be "01"
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10..11 Checksum, in hex notation
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12..13 Carriage return, line feed
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B. INTEL 2
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MCS-86 format, using a 20-bit address for files larger than 64K bytes.
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DATA RECORD
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Byte 1 Header = colon (:)
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2..3 The byte count of this record, hex notation
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4..5 High byte of the record load address
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6..7 Low byte of the record load address
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8..9 Record type, must be "00"
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10..x The data bytes in hex notation:
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x = (number of data bytes - 1) * 2 + 11
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x+1..x+2 Checksum in hex notation
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x+3..x+4 Carriage return, line feed
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EXTENDED ADDRESS RECORD
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Byte 1 Header = colon(:)
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2..3 The byte count, must be "02"
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4..7 Load address, must be "0000"
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8..9 Record type, must be "02"
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10..11 High byte of the offset address
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12..13 Low byte of the offset address
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14..15 Checksum in hex notation
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16..17 Carriage return, line feed
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The checksums are the two's complement of the 8-bit sum
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without carry of the byte count, offset address, and the
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record type.
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START ADDRESS RECORD
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Byte 1 Header = colon (:)
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2..3 The byte count, must be "04"
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4..7 Load address, must be "0000"
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8..9 Record type, must be "03"
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10..13 8086 CS value
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14..17 8086 IP value
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18..19 Checksum in hex notation
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20..21 Carriage return, line feed
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Another document reports these additional types:
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EXTENDED LINEAR ADDRESS RECORD
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Byte 1 Header = colon (:)
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2..3 The byte count, must be "02"
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4..7 Load address, must be "0000"
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8..9 Record type, must be "04"
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10..13 Upper 16 bits of address of subsequent records
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14..15 Checksum in hex notation
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16..17 Carriage return, line feed
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START LINEAR ADDRESS RECORD
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Byte 1 Header = colon (:)
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2..3 The byte count, must be "02"
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4..7 Load address, must be "0000"
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8..9 Record type, must be "05"
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10..13 Upper 16 bits of start address
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14..15 Checksum in hex notation
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16..17 Carriage return, line feed
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The MRI compiler uses this, which is a repeat of type 5:
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EXTENDED START RECORD
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Byte 1 Header = colon (:)
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2..3 The byte count, must be "04"
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4..7 Load address, must be "0000"
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8..9 Record type, must be "05"
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10..13 Upper 16 bits of start address
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14..17 Lower 16 bits of start address
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18..19 Checksum in hex notation
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20..21 Carriage return, line feed
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*/
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "libiberty.h"
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#include "safe-ctype.h"
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static void ihex_init
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PARAMS ((void));
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static bfd_boolean ihex_mkobject
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PARAMS ((bfd *));
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static INLINE int ihex_get_byte
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PARAMS ((bfd *, bfd_boolean *));
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static void ihex_bad_byte
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PARAMS ((bfd *, unsigned int, int, bfd_boolean));
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static bfd_boolean ihex_scan
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PARAMS ((bfd *));
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static const bfd_target *ihex_object_p
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PARAMS ((bfd *));
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static bfd_boolean ihex_read_section
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PARAMS ((bfd *, asection *, bfd_byte *));
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static bfd_boolean ihex_get_section_contents
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PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
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static bfd_boolean ihex_set_section_contents
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PARAMS ((bfd *, asection *, const PTR, file_ptr, bfd_size_type));
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static bfd_boolean ihex_write_record
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PARAMS ((bfd *, size_t, unsigned int, unsigned int, bfd_byte *));
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static bfd_boolean ihex_write_object_contents
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PARAMS ((bfd *));
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static bfd_boolean ihex_set_arch_mach
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PARAMS ((bfd *, enum bfd_architecture, unsigned long));
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static int ihex_sizeof_headers
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PARAMS ((bfd *, bfd_boolean));
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/* The number of bytes we put on one line during output. */
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#define CHUNK 16
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/* Macros for converting between hex and binary. */
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#define NIBBLE(x) (hex_value (x))
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#define HEX2(buffer) ((NIBBLE ((buffer)[0]) << 4) + NIBBLE ((buffer)[1]))
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#define HEX4(buffer) ((HEX2 (buffer) << 8) + HEX2 ((buffer) + 2))
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#define ISHEX(x) (hex_p (x))
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/* When we write out an ihex value, the values can not be output as
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they are seen. Instead, we hold them in memory in this structure. */
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struct ihex_data_list
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{
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struct ihex_data_list *next;
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bfd_byte *data;
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bfd_vma where;
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bfd_size_type size;
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};
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/* The ihex tdata information. */
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struct ihex_data_struct
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{
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struct ihex_data_list *head;
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struct ihex_data_list *tail;
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};
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/* Initialize by filling in the hex conversion array. */
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static void
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ihex_init ()
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{
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static bfd_boolean inited;
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if (! inited)
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{
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inited = TRUE;
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hex_init ();
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}
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}
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/* Create an ihex object. */
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static bfd_boolean
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ihex_mkobject (abfd)
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bfd *abfd;
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{
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struct ihex_data_struct *tdata;
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bfd_size_type amt = sizeof (struct ihex_data_struct);
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tdata = (struct ihex_data_struct *) bfd_alloc (abfd, amt);
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if (tdata == NULL)
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return FALSE;
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abfd->tdata.ihex_data = tdata;
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tdata->head = NULL;
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tdata->tail = NULL;
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return TRUE;
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}
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/* Read a byte from a BFD. Set *ERRORPTR if an error occurred.
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Return EOF on error or end of file. */
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static INLINE int
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ihex_get_byte (abfd, errorptr)
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bfd *abfd;
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bfd_boolean *errorptr;
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{
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bfd_byte c;
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if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1)
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{
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if (bfd_get_error () != bfd_error_file_truncated)
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*errorptr = TRUE;
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return EOF;
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}
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return (int) (c & 0xff);
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}
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/* Report a problem in an Intel Hex file. */
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static void
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ihex_bad_byte (abfd, lineno, c, error)
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bfd *abfd;
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unsigned int lineno;
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int c;
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bfd_boolean error;
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{
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if (c == EOF)
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{
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if (! error)
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bfd_set_error (bfd_error_file_truncated);
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}
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else
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{
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char buf[10];
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if (! ISPRINT (c))
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sprintf (buf, "\\%03o", (unsigned int) c);
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else
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{
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buf[0] = c;
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buf[1] = '\0';
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}
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(*_bfd_error_handler)
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(_("%B:%d: unexpected character `%s' in Intel Hex file"),
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abfd, lineno, buf);
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bfd_set_error (bfd_error_bad_value);
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}
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}
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/* Read an Intel hex file and turn it into sections. We create a new
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section for each contiguous set of bytes. */
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static bfd_boolean
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ihex_scan (abfd)
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bfd *abfd;
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{
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bfd_vma segbase;
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bfd_vma extbase;
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asection *sec;
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unsigned int lineno;
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bfd_boolean error;
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bfd_byte *buf = NULL;
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size_t bufsize;
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int c;
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
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goto error_return;
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abfd->start_address = 0;
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segbase = 0;
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extbase = 0;
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sec = NULL;
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lineno = 1;
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error = FALSE;
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bufsize = 0;
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while ((c = ihex_get_byte (abfd, &error)) != EOF)
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{
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if (c == '\r')
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continue;
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else if (c == '\n')
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{
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++lineno;
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continue;
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}
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else if (c != ':')
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{
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ihex_bad_byte (abfd, lineno, c, error);
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goto error_return;
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}
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else
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{
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file_ptr pos;
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char hdr[8];
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unsigned int i;
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unsigned int len;
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bfd_vma addr;
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unsigned int type;
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unsigned int chars;
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unsigned int chksum;
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/* This is a data record. */
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pos = bfd_tell (abfd) - 1;
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/* Read the header bytes. */
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if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8)
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goto error_return;
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for (i = 0; i < 8; i++)
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{
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if (! ISHEX (hdr[i]))
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{
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ihex_bad_byte (abfd, lineno, hdr[i], error);
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goto error_return;
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}
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}
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len = HEX2 (hdr);
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addr = HEX4 (hdr + 2);
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type = HEX2 (hdr + 6);
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/* Read the data bytes. */
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chars = len * 2 + 2;
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if (chars >= bufsize)
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{
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buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) chars);
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if (buf == NULL)
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goto error_return;
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bufsize = chars;
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}
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if (bfd_bread (buf, (bfd_size_type) chars, abfd) != chars)
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goto error_return;
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for (i = 0; i < chars; i++)
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{
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if (! ISHEX (buf[i]))
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{
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ihex_bad_byte (abfd, lineno, hdr[i], error);
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goto error_return;
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}
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}
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/* Check the checksum. */
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chksum = len + addr + (addr >> 8) + type;
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for (i = 0; i < len; i++)
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chksum += HEX2 (buf + 2 * i);
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if (((- chksum) & 0xff) != (unsigned int) HEX2 (buf + 2 * i))
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{
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(*_bfd_error_handler)
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(_("%B:%u: bad checksum in Intel Hex file (expected %u, found %u)"),
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abfd, lineno,
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(- chksum) & 0xff, (unsigned int) HEX2 (buf + 2 * i));
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bfd_set_error (bfd_error_bad_value);
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goto error_return;
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}
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|
switch (type)
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{
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case 0:
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/* This is a data record. */
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if (sec != NULL
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&& sec->vma + sec->size == extbase + segbase + addr)
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{
|
|
/* This data goes at the end of the section we are
|
|
currently building. */
|
|
sec->size += len;
|
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}
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else if (len > 0)
|
|
{
|
|
char secbuf[20];
|
|
char *secname;
|
|
bfd_size_type amt;
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|
|
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sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1);
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|
amt = strlen (secbuf) + 1;
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secname = (char *) bfd_alloc (abfd, amt);
|
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if (secname == NULL)
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|
goto error_return;
|
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strcpy (secname, secbuf);
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sec = bfd_make_section (abfd, secname);
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if (sec == NULL)
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goto error_return;
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sec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC;
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sec->vma = extbase + segbase + addr;
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sec->lma = extbase + segbase + addr;
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sec->size = len;
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sec->filepos = pos;
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|
}
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break;
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|
|
|
case 1:
|
|
/* An end record. */
|
|
if (abfd->start_address == 0)
|
|
abfd->start_address = addr;
|
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if (buf != NULL)
|
|
free (buf);
|
|
return TRUE;
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|
|
|
case 2:
|
|
/* An extended address record. */
|
|
if (len != 2)
|
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{
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(*_bfd_error_handler)
|
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(_("%B:%u: bad extended address record length in Intel Hex file"),
|
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abfd, lineno);
|
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bfd_set_error (bfd_error_bad_value);
|
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goto error_return;
|
|
}
|
|
|
|
segbase = HEX4 (buf) << 4;
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|
|
|
sec = NULL;
|
|
|
|
break;
|
|
|
|
case 3:
|
|
/* An extended start address record. */
|
|
if (len != 4)
|
|
{
|
|
(*_bfd_error_handler)
|
|
(_("%B:%u: bad extended start address length in Intel Hex file"),
|
|
abfd, lineno);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
goto error_return;
|
|
}
|
|
|
|
abfd->start_address += (HEX4 (buf) << 4) + HEX4 (buf + 4);
|
|
|
|
sec = NULL;
|
|
|
|
break;
|
|
|
|
case 4:
|
|
/* An extended linear address record. */
|
|
if (len != 2)
|
|
{
|
|
(*_bfd_error_handler)
|
|
(_("%B:%u: bad extended linear address record length in Intel Hex file"),
|
|
abfd, lineno);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
goto error_return;
|
|
}
|
|
|
|
extbase = HEX4 (buf) << 16;
|
|
|
|
sec = NULL;
|
|
|
|
break;
|
|
|
|
case 5:
|
|
/* An extended linear start address record. */
|
|
if (len != 2 && len != 4)
|
|
{
|
|
(*_bfd_error_handler)
|
|
(_("%B:%u: bad extended linear start address length in Intel Hex file"),
|
|
abfd, lineno);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
goto error_return;
|
|
}
|
|
|
|
if (len == 2)
|
|
abfd->start_address += HEX4 (buf) << 16;
|
|
else
|
|
abfd->start_address = (HEX4 (buf) << 16) + HEX4 (buf + 4);
|
|
|
|
sec = NULL;
|
|
|
|
break;
|
|
|
|
default:
|
|
(*_bfd_error_handler)
|
|
(_("%B:%u: unrecognized ihex type %u in Intel Hex file"),
|
|
abfd, lineno, type);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
goto error_return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (error)
|
|
goto error_return;
|
|
|
|
if (buf != NULL)
|
|
free (buf);
|
|
|
|
return TRUE;
|
|
|
|
error_return:
|
|
if (buf != NULL)
|
|
free (buf);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Try to recognize an Intel Hex file. */
|
|
|
|
static const bfd_target *
|
|
ihex_object_p (abfd)
|
|
bfd *abfd;
|
|
{
|
|
PTR tdata_save;
|
|
bfd_byte b[9];
|
|
unsigned int i;
|
|
unsigned int type;
|
|
|
|
ihex_init ();
|
|
|
|
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
|
|
return NULL;
|
|
if (bfd_bread (b, (bfd_size_type) 9, abfd) != 9)
|
|
{
|
|
if (bfd_get_error () == bfd_error_file_truncated)
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return NULL;
|
|
}
|
|
|
|
if (b[0] != ':')
|
|
{
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 1; i < 9; i++)
|
|
{
|
|
if (! ISHEX (b[i]))
|
|
{
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
type = HEX2 (b + 7);
|
|
if (type > 5)
|
|
{
|
|
bfd_set_error (bfd_error_wrong_format);
|
|
return NULL;
|
|
}
|
|
|
|
/* OK, it looks like it really is an Intel Hex file. */
|
|
tdata_save = abfd->tdata.any;
|
|
if (! ihex_mkobject (abfd) || ! ihex_scan (abfd))
|
|
{
|
|
if (abfd->tdata.any != tdata_save && abfd->tdata.any != NULL)
|
|
bfd_release (abfd, abfd->tdata.any);
|
|
abfd->tdata.any = tdata_save;
|
|
return NULL;
|
|
}
|
|
|
|
return abfd->xvec;
|
|
}
|
|
|
|
/* Read the contents of a section in an Intel Hex file. */
|
|
|
|
static bfd_boolean
|
|
ihex_read_section (abfd, section, contents)
|
|
bfd *abfd;
|
|
asection *section;
|
|
bfd_byte *contents;
|
|
{
|
|
int c;
|
|
bfd_byte *p;
|
|
bfd_byte *buf = NULL;
|
|
size_t bufsize;
|
|
bfd_boolean error;
|
|
|
|
if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0)
|
|
goto error_return;
|
|
|
|
p = contents;
|
|
bufsize = 0;
|
|
error = FALSE;
|
|
while ((c = ihex_get_byte (abfd, &error)) != EOF)
|
|
{
|
|
char hdr[8];
|
|
unsigned int len;
|
|
bfd_vma addr;
|
|
unsigned int type;
|
|
unsigned int i;
|
|
|
|
if (c == '\r' || c == '\n')
|
|
continue;
|
|
|
|
/* This is called after ihex_scan has succeeded, so we ought to
|
|
know the exact format. */
|
|
BFD_ASSERT (c == ':');
|
|
|
|
if (bfd_bread (hdr, (bfd_size_type) 8, abfd) != 8)
|
|
goto error_return;
|
|
|
|
len = HEX2 (hdr);
|
|
addr = HEX4 (hdr + 2);
|
|
type = HEX2 (hdr + 6);
|
|
|
|
/* We should only see type 0 records here. */
|
|
if (type != 0)
|
|
{
|
|
(*_bfd_error_handler)
|
|
(_("%B: internal error in ihex_read_section"), abfd);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
goto error_return;
|
|
}
|
|
|
|
if (len * 2 > bufsize)
|
|
{
|
|
buf = (bfd_byte *) bfd_realloc (buf, (bfd_size_type) len * 2);
|
|
if (buf == NULL)
|
|
goto error_return;
|
|
bufsize = len * 2;
|
|
}
|
|
|
|
if (bfd_bread (buf, (bfd_size_type) len * 2, abfd) != len * 2)
|
|
goto error_return;
|
|
|
|
for (i = 0; i < len; i++)
|
|
*p++ = HEX2 (buf + 2 * i);
|
|
if ((bfd_size_type) (p - contents) >= section->size)
|
|
{
|
|
/* We've read everything in the section. */
|
|
if (buf != NULL)
|
|
free (buf);
|
|
return TRUE;
|
|
}
|
|
|
|
/* Skip the checksum. */
|
|
if (bfd_bread (buf, (bfd_size_type) 2, abfd) != 2)
|
|
goto error_return;
|
|
}
|
|
|
|
if ((bfd_size_type) (p - contents) < section->size)
|
|
{
|
|
(*_bfd_error_handler)
|
|
(_("%B: bad section length in ihex_read_section"), abfd);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
goto error_return;
|
|
}
|
|
|
|
if (buf != NULL)
|
|
free (buf);
|
|
|
|
return TRUE;
|
|
|
|
error_return:
|
|
if (buf != NULL)
|
|
free (buf);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Get the contents of a section in an Intel Hex file. */
|
|
|
|
static bfd_boolean
|
|
ihex_get_section_contents (abfd, section, location, offset, count)
|
|
bfd *abfd;
|
|
asection *section;
|
|
PTR location;
|
|
file_ptr offset;
|
|
bfd_size_type count;
|
|
{
|
|
if (section->used_by_bfd == NULL)
|
|
{
|
|
section->used_by_bfd = bfd_alloc (abfd, section->size);
|
|
if (section->used_by_bfd == NULL)
|
|
return FALSE;
|
|
if (! ihex_read_section (abfd, section, section->used_by_bfd))
|
|
return FALSE;
|
|
}
|
|
|
|
memcpy (location, (bfd_byte *) section->used_by_bfd + offset,
|
|
(size_t) count);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Set the contents of a section in an Intel Hex file. */
|
|
|
|
static bfd_boolean
|
|
ihex_set_section_contents (abfd, section, location, offset, count)
|
|
bfd *abfd;
|
|
asection *section;
|
|
const PTR location;
|
|
file_ptr offset;
|
|
bfd_size_type count;
|
|
{
|
|
struct ihex_data_list *n;
|
|
bfd_byte *data;
|
|
struct ihex_data_struct *tdata;
|
|
bfd_size_type amt;
|
|
|
|
if (count == 0
|
|
|| (section->flags & SEC_ALLOC) == 0
|
|
|| (section->flags & SEC_LOAD) == 0)
|
|
return TRUE;
|
|
|
|
amt = sizeof (struct ihex_data_list);
|
|
n = (struct ihex_data_list *) bfd_alloc (abfd, amt);
|
|
if (n == NULL)
|
|
return FALSE;
|
|
|
|
data = (bfd_byte *) bfd_alloc (abfd, count);
|
|
if (data == NULL)
|
|
return FALSE;
|
|
memcpy (data, location, (size_t) count);
|
|
|
|
n->data = data;
|
|
n->where = section->lma + offset;
|
|
n->size = count;
|
|
|
|
/* Sort the records by address. Optimize for the common case of
|
|
adding a record to the end of the list. */
|
|
tdata = abfd->tdata.ihex_data;
|
|
if (tdata->tail != NULL
|
|
&& n->where >= tdata->tail->where)
|
|
{
|
|
tdata->tail->next = n;
|
|
n->next = NULL;
|
|
tdata->tail = n;
|
|
}
|
|
else
|
|
{
|
|
register struct ihex_data_list **pp;
|
|
|
|
for (pp = &tdata->head;
|
|
*pp != NULL && (*pp)->where < n->where;
|
|
pp = &(*pp)->next)
|
|
;
|
|
n->next = *pp;
|
|
*pp = n;
|
|
if (n->next == NULL)
|
|
tdata->tail = n;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Write a record out to an Intel Hex file. */
|
|
|
|
static bfd_boolean
|
|
ihex_write_record (abfd, count, addr, type, data)
|
|
bfd *abfd;
|
|
size_t count;
|
|
unsigned int addr;
|
|
unsigned int type;
|
|
bfd_byte *data;
|
|
{
|
|
static const char digs[] = "0123456789ABCDEF";
|
|
char buf[9 + CHUNK * 2 + 4];
|
|
char *p;
|
|
unsigned int chksum;
|
|
unsigned int i;
|
|
size_t total;
|
|
|
|
#define TOHEX(buf, v) \
|
|
((buf)[0] = digs[((v) >> 4) & 0xf], (buf)[1] = digs[(v) & 0xf])
|
|
|
|
buf[0] = ':';
|
|
TOHEX (buf + 1, count);
|
|
TOHEX (buf + 3, (addr >> 8) & 0xff);
|
|
TOHEX (buf + 5, addr & 0xff);
|
|
TOHEX (buf + 7, type);
|
|
|
|
chksum = count + addr + (addr >> 8) + type;
|
|
|
|
for (i = 0, p = buf + 9; i < count; i++, p += 2, data++)
|
|
{
|
|
TOHEX (p, *data);
|
|
chksum += *data;
|
|
}
|
|
|
|
TOHEX (p, (- chksum) & 0xff);
|
|
p[2] = '\r';
|
|
p[3] = '\n';
|
|
|
|
total = 9 + count * 2 + 4;
|
|
if (bfd_bwrite (buf, (bfd_size_type) total, abfd) != total)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Write out an Intel Hex file. */
|
|
|
|
static bfd_boolean
|
|
ihex_write_object_contents (abfd)
|
|
bfd *abfd;
|
|
{
|
|
bfd_vma segbase;
|
|
bfd_vma extbase;
|
|
struct ihex_data_list *l;
|
|
|
|
segbase = 0;
|
|
extbase = 0;
|
|
for (l = abfd->tdata.ihex_data->head; l != NULL; l = l->next)
|
|
{
|
|
bfd_vma where;
|
|
bfd_byte *p;
|
|
bfd_size_type count;
|
|
|
|
where = l->where;
|
|
p = l->data;
|
|
count = l->size;
|
|
while (count > 0)
|
|
{
|
|
size_t now;
|
|
unsigned int rec_addr;
|
|
|
|
now = count;
|
|
if (count > CHUNK)
|
|
now = CHUNK;
|
|
|
|
if (where > segbase + extbase + 0xffff)
|
|
{
|
|
bfd_byte addr[2];
|
|
|
|
/* We need a new base address. */
|
|
if (where <= 0xfffff)
|
|
{
|
|
/* The addresses should be sorted. */
|
|
BFD_ASSERT (extbase == 0);
|
|
|
|
segbase = where & 0xf0000;
|
|
addr[0] = (bfd_byte)(segbase >> 12) & 0xff;
|
|
addr[1] = (bfd_byte)(segbase >> 4) & 0xff;
|
|
if (! ihex_write_record (abfd, 2, 0, 2, addr))
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* The extended address record and the extended
|
|
linear address record are combined, at least by
|
|
some readers. We need an extended linear address
|
|
record here, so if we've already written out an
|
|
extended address record, zero it out to avoid
|
|
confusion. */
|
|
if (segbase != 0)
|
|
{
|
|
addr[0] = 0;
|
|
addr[1] = 0;
|
|
if (! ihex_write_record (abfd, 2, 0, 2, addr))
|
|
return FALSE;
|
|
segbase = 0;
|
|
}
|
|
|
|
extbase = where & 0xffff0000;
|
|
if (where > extbase + 0xffff)
|
|
{
|
|
char buf[20];
|
|
|
|
sprintf_vma (buf, where);
|
|
(*_bfd_error_handler)
|
|
(_("%s: address 0x%s out of range for Intel Hex file"),
|
|
bfd_get_filename (abfd), buf);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
}
|
|
addr[0] = (bfd_byte)(extbase >> 24) & 0xff;
|
|
addr[1] = (bfd_byte)(extbase >> 16) & 0xff;
|
|
if (! ihex_write_record (abfd, 2, 0, 4, addr))
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
rec_addr = where - (extbase + segbase);
|
|
|
|
/* Output records shouldn't cross 64K boundaries. */
|
|
if (rec_addr + now > 0xffff)
|
|
now = 0x10000 - rec_addr;
|
|
|
|
if (! ihex_write_record (abfd, now, rec_addr, 0, p))
|
|
return FALSE;
|
|
|
|
where += now;
|
|
p += now;
|
|
count -= now;
|
|
}
|
|
}
|
|
|
|
if (abfd->start_address != 0)
|
|
{
|
|
bfd_vma start;
|
|
bfd_byte startbuf[4];
|
|
|
|
start = abfd->start_address;
|
|
|
|
if (start <= 0xfffff)
|
|
{
|
|
startbuf[0] = (bfd_byte)((start & 0xf0000) >> 12) & 0xff;
|
|
startbuf[1] = 0;
|
|
startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
|
|
startbuf[3] = (bfd_byte)start & 0xff;
|
|
if (! ihex_write_record (abfd, 4, 0, 3, startbuf))
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
startbuf[0] = (bfd_byte)(start >> 24) & 0xff;
|
|
startbuf[1] = (bfd_byte)(start >> 16) & 0xff;
|
|
startbuf[2] = (bfd_byte)(start >> 8) & 0xff;
|
|
startbuf[3] = (bfd_byte)start & 0xff;
|
|
if (! ihex_write_record (abfd, 4, 0, 5, startbuf))
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (! ihex_write_record (abfd, 0, 0, 1, NULL))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Set the architecture for the output file. The architecture is
|
|
irrelevant, so we ignore errors about unknown architectures. */
|
|
|
|
static bfd_boolean
|
|
ihex_set_arch_mach (abfd, arch, mach)
|
|
bfd *abfd;
|
|
enum bfd_architecture arch;
|
|
unsigned long mach;
|
|
{
|
|
if (! bfd_default_set_arch_mach (abfd, arch, mach))
|
|
{
|
|
if (arch != bfd_arch_unknown)
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/* Get the size of the headers, for the linker. */
|
|
|
|
static int
|
|
ihex_sizeof_headers (abfd, exec)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
bfd_boolean exec ATTRIBUTE_UNUSED;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Some random definitions for the target vector. */
|
|
|
|
#define ihex_close_and_cleanup _bfd_generic_close_and_cleanup
|
|
#define ihex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
|
|
#define ihex_new_section_hook _bfd_generic_new_section_hook
|
|
#define ihex_get_section_contents_in_window \
|
|
_bfd_generic_get_section_contents_in_window
|
|
|
|
#define ihex_get_symtab_upper_bound bfd_0l
|
|
#define ihex_canonicalize_symtab \
|
|
((long (*) PARAMS ((bfd *, asymbol **))) bfd_0l)
|
|
#define ihex_make_empty_symbol _bfd_generic_make_empty_symbol
|
|
#define ihex_print_symbol _bfd_nosymbols_print_symbol
|
|
#define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info
|
|
#define ihex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
|
|
#define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
|
|
#define ihex_get_lineno _bfd_nosymbols_get_lineno
|
|
#define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line
|
|
#define ihex_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
|
|
#define ihex_read_minisymbols _bfd_nosymbols_read_minisymbols
|
|
#define ihex_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
|
|
|
|
#define ihex_get_reloc_upper_bound \
|
|
((long (*) PARAMS ((bfd *, asection *))) bfd_0l)
|
|
#define ihex_canonicalize_reloc \
|
|
((long (*) PARAMS ((bfd *, asection *, arelent **, asymbol **))) bfd_0l)
|
|
#define ihex_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
|
|
|
|
#define ihex_bfd_get_relocated_section_contents \
|
|
bfd_generic_get_relocated_section_contents
|
|
#define ihex_bfd_relax_section bfd_generic_relax_section
|
|
#define ihex_bfd_gc_sections bfd_generic_gc_sections
|
|
#define ihex_bfd_merge_sections bfd_generic_merge_sections
|
|
#define ihex_bfd_is_group_section bfd_generic_is_group_section
|
|
#define ihex_bfd_discard_group bfd_generic_discard_group
|
|
#define ihex_section_already_linked \
|
|
_bfd_generic_section_already_linked
|
|
#define ihex_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
|
|
#define ihex_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
|
|
#define ihex_bfd_link_add_symbols _bfd_generic_link_add_symbols
|
|
#define ihex_bfd_link_just_syms _bfd_generic_link_just_syms
|
|
#define ihex_bfd_final_link _bfd_generic_final_link
|
|
#define ihex_bfd_link_split_section _bfd_generic_link_split_section
|
|
|
|
/* The Intel Hex target vector. */
|
|
|
|
const bfd_target ihex_vec =
|
|
{
|
|
"ihex", /* name */
|
|
bfd_target_ihex_flavour,
|
|
BFD_ENDIAN_UNKNOWN, /* target byte order */
|
|
BFD_ENDIAN_UNKNOWN, /* target headers byte order */
|
|
0, /* object flags */
|
|
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD), /* section flags */
|
|
0, /* leading underscore */
|
|
' ', /* ar_pad_char */
|
|
16, /* ar_max_namelen */
|
|
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
|
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
|
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
|
|
bfd_getb64, bfd_getb_signed_64, bfd_putb64,
|
|
bfd_getb32, bfd_getb_signed_32, bfd_putb32,
|
|
bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
|
|
|
|
{
|
|
_bfd_dummy_target,
|
|
ihex_object_p, /* bfd_check_format */
|
|
_bfd_dummy_target,
|
|
_bfd_dummy_target,
|
|
},
|
|
{
|
|
bfd_false,
|
|
ihex_mkobject,
|
|
_bfd_generic_mkarchive,
|
|
bfd_false,
|
|
},
|
|
{ /* bfd_write_contents */
|
|
bfd_false,
|
|
ihex_write_object_contents,
|
|
_bfd_write_archive_contents,
|
|
bfd_false,
|
|
},
|
|
|
|
BFD_JUMP_TABLE_GENERIC (ihex),
|
|
BFD_JUMP_TABLE_COPY (_bfd_generic),
|
|
BFD_JUMP_TABLE_CORE (_bfd_nocore),
|
|
BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
|
|
BFD_JUMP_TABLE_SYMBOLS (ihex),
|
|
BFD_JUMP_TABLE_RELOCS (ihex),
|
|
BFD_JUMP_TABLE_WRITE (ihex),
|
|
BFD_JUMP_TABLE_LINK (ihex),
|
|
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
|
|
|
|
NULL,
|
|
|
|
(PTR) 0
|
|
};
|