diff options
Diffstat (limited to 'binutils-2.24/bfd/srec.c')
| -rw-r--r-- | binutils-2.24/bfd/srec.c | 1381 |
1 files changed, 0 insertions, 1381 deletions
diff --git a/binutils-2.24/bfd/srec.c b/binutils-2.24/bfd/srec.c deleted file mode 100644 index ded9e76c..00000000 --- a/binutils-2.24/bfd/srec.c +++ /dev/null @@ -1,1381 +0,0 @@ -/* BFD back-end for s-record objects. - Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011 - Free Software Foundation, Inc. - Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>. - - 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 3 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. - - 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., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - - -/* SUBSECTION - S-Record handling - - DESCRIPTION - - Ordinary S-Records cannot hold anything but addresses and - data, so that's all that we implement. - - The only interesting thing is that S-Records may come out of - order and there is no header, so an initial scan is required - to discover the minimum and maximum addresses used to create - the vma and size of the only section we create. We - arbitrarily call this section ".text". - - When bfd_get_section_contents is called the file is read - again, and this time the data is placed into a bfd_alloc'd - area. - - Any number of sections may be created for output, we save them - up and output them when it's time to close the bfd. - - An s record looks like: - - EXAMPLE - S<type><length><address><data><checksum> - - DESCRIPTION - Where - o length - is the number of bytes following upto the checksum. Note that - this is not the number of chars following, since it takes two - chars to represent a byte. - o type - is one of: - 0) header record - 1) two byte address data record - 2) three byte address data record - 3) four byte address data record - 7) four byte address termination record - 8) three byte address termination record - 9) two byte address termination record - - o address - is the start address of the data following, or in the case of - a termination record, the start address of the image - o data - is the data. - o checksum - is the sum of all the raw byte data in the record, from the length - upwards, modulo 256 and subtracted from 255. - - SUBSECTION - Symbol S-Record handling - - DESCRIPTION - Some ICE equipment understands an addition to the standard - S-Record format; symbols and their addresses can be sent - before the data. - - The format of this is: - ($$ <modulename> - (<space> <symbol> <address>)*) - $$ - - so a short symbol table could look like: - - EXAMPLE - $$ flash.x - $$ flash.c - _port6 $0 - _delay $4 - _start $14 - _etext $8036 - _edata $8036 - _end $8036 - $$ - - DESCRIPTION - We allow symbols to be anywhere in the data stream - the module names - are always ignored. */ - -#include "sysdep.h" -#include "bfd.h" -#include "libbfd.h" -#include "libiberty.h" -#include "safe-ctype.h" - - -/* Macros for converting between hex and binary. */ - -static const char digs[] = "0123456789ABCDEF"; - -#define NIBBLE(x) hex_value(x) -#define HEX(buffer) ((NIBBLE ((buffer)[0])<<4) + NIBBLE ((buffer)[1])) -#define TOHEX(d, x, ch) \ - d[1] = digs[(x) & 0xf]; \ - d[0] = digs[((x)>>4)&0xf]; \ - ch += ((x) & 0xff); -#define ISHEX(x) hex_p(x) - -/* The maximum number of address+data+crc bytes on a line is FF. */ -#define MAXCHUNK 0xff - -/* Default size for a CHUNK. */ -#define DEFAULT_CHUNK 16 - -/* The number of data bytes we actually fit onto a line on output. - This variable can be modified by objcopy's --srec-len parameter. - For a 0x75 byte record you should set --srec-len=0x70. */ -unsigned int Chunk = DEFAULT_CHUNK; - -/* The type of srec output (free or forced to S3). - This variable can be modified by objcopy's --srec-forceS3 - parameter. */ -bfd_boolean S3Forced = FALSE; - -/* When writing an S-record file, the S-records can not be output as - they are seen. This structure is used to hold them in memory. */ - -struct srec_data_list_struct -{ - struct srec_data_list_struct *next; - bfd_byte *data; - bfd_vma where; - bfd_size_type size; -}; - -typedef struct srec_data_list_struct srec_data_list_type; - -/* When scanning the S-record file, a linked list of srec_symbol - structures is built to represent the symbol table (if there is - one). */ - -struct srec_symbol -{ - struct srec_symbol *next; - const char *name; - bfd_vma val; -}; - -/* The S-record tdata information. */ - -typedef struct srec_data_struct - { - srec_data_list_type *head; - srec_data_list_type *tail; - unsigned int type; - struct srec_symbol *symbols; - struct srec_symbol *symtail; - asymbol *csymbols; - } -tdata_type; - -/* Initialize by filling in the hex conversion array. */ - -static void -srec_init (void) -{ - static bfd_boolean inited = FALSE; - - if (! inited) - { - inited = TRUE; - hex_init (); - } -} - -/* Set up the S-record tdata information. */ - -static bfd_boolean -srec_mkobject (bfd *abfd) -{ - tdata_type *tdata; - - srec_init (); - - tdata = (tdata_type *) bfd_alloc (abfd, sizeof (tdata_type)); - if (tdata == NULL) - return FALSE; - - abfd->tdata.srec_data = tdata; - tdata->type = 1; - tdata->head = NULL; - tdata->tail = NULL; - tdata->symbols = NULL; - tdata->symtail = NULL; - tdata->csymbols = NULL; - - return TRUE; -} - -/* Read a byte from an S record file. Set *ERRORPTR if an error - occurred. Return EOF on error or end of file. */ - -static int -srec_get_byte (bfd *abfd, bfd_boolean *errorptr) -{ - bfd_byte c; - - if (bfd_bread (&c, (bfd_size_type) 1, abfd) != 1) - { - if (bfd_get_error () != bfd_error_file_truncated) - *errorptr = TRUE; - return EOF; - } - - return (int) (c & 0xff); -} - -/* Report a problem in an S record file. FIXME: This probably should - not call fprintf, but we really do need some mechanism for printing - error messages. */ - -static void -srec_bad_byte (bfd *abfd, - unsigned int lineno, - int c, - bfd_boolean error) -{ - if (c == EOF) - { - if (! error) - bfd_set_error (bfd_error_file_truncated); - } - else - { - char buf[10]; - - if (! ISPRINT (c)) - sprintf (buf, "\\%03o", (unsigned int) c); - else - { - buf[0] = c; - buf[1] = '\0'; - } - (*_bfd_error_handler) - (_("%B:%d: Unexpected character `%s' in S-record file\n"), - abfd, lineno, buf); - bfd_set_error (bfd_error_bad_value); - } -} - -/* Add a new symbol found in an S-record file. */ - -static bfd_boolean -srec_new_symbol (bfd *abfd, const char *name, bfd_vma val) -{ - struct srec_symbol *n; - - n = (struct srec_symbol *) bfd_alloc (abfd, sizeof (* n)); - if (n == NULL) - return FALSE; - - n->name = name; - n->val = val; - - if (abfd->tdata.srec_data->symbols == NULL) - abfd->tdata.srec_data->symbols = n; - else - abfd->tdata.srec_data->symtail->next = n; - abfd->tdata.srec_data->symtail = n; - n->next = NULL; - - ++abfd->symcount; - - return TRUE; -} - -/* Read the S record file and turn it into sections. We create a new - section for each contiguous set of bytes. */ - -static bfd_boolean -srec_scan (bfd *abfd) -{ - int c; - unsigned int lineno = 1; - bfd_boolean error = FALSE; - bfd_byte *buf = NULL; - size_t bufsize = 0; - asection *sec = NULL; - char *symbuf = NULL; - - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) - goto error_return; - - while ((c = srec_get_byte (abfd, &error)) != EOF) - { - /* We only build sections from contiguous S-records, so if this - is not an S-record, then stop building a section. */ - if (c != 'S' && c != '\r' && c != '\n') - sec = NULL; - - switch (c) - { - default: - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - - case '\n': - ++lineno; - break; - - case '\r': - break; - - case '$': - /* Starting a module name, which we ignore. */ - while ((c = srec_get_byte (abfd, &error)) != '\n' - && c != EOF) - ; - if (c == EOF) - { - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - - ++lineno; - break; - - case ' ': - do - { - bfd_size_type alc; - char *p, *symname; - bfd_vma symval; - - /* Starting a symbol definition. */ - while ((c = srec_get_byte (abfd, &error)) != EOF - && (c == ' ' || c == '\t')) - ; - - if (c == '\n' || c == '\r') - break; - - if (c == EOF) - { - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - - alc = 10; - symbuf = (char *) bfd_malloc (alc + 1); - if (symbuf == NULL) - goto error_return; - - p = symbuf; - - *p++ = c; - while ((c = srec_get_byte (abfd, &error)) != EOF - && ! ISSPACE (c)) - { - if ((bfd_size_type) (p - symbuf) >= alc) - { - char *n; - - alc *= 2; - n = (char *) bfd_realloc (symbuf, alc + 1); - if (n == NULL) - goto error_return; - p = n + (p - symbuf); - symbuf = n; - } - - *p++ = c; - } - - if (c == EOF) - { - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - - *p++ = '\0'; - symname = (char *) bfd_alloc (abfd, (bfd_size_type) (p - symbuf)); - if (symname == NULL) - goto error_return; - strcpy (symname, symbuf); - free (symbuf); - symbuf = NULL; - - while ((c = srec_get_byte (abfd, &error)) != EOF - && (c == ' ' || c == '\t')) - ; - if (c == EOF) - { - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - - /* Skip a dollar sign before the hex value. */ - if (c == '$') - { - c = srec_get_byte (abfd, &error); - if (c == EOF) - { - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - } - - symval = 0; - while (ISHEX (c)) - { - symval <<= 4; - symval += NIBBLE (c); - c = srec_get_byte (abfd, &error); - if (c == EOF) - { - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - } - - if (! srec_new_symbol (abfd, symname, symval)) - goto error_return; - } - while (c == ' ' || c == '\t') - ; - - if (c == '\n') - ++lineno; - else if (c != '\r') - { - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - - break; - - case 'S': - { - file_ptr pos; - char hdr[3]; - unsigned int bytes; - bfd_vma address; - bfd_byte *data; - unsigned char check_sum; - - /* Starting an S-record. */ - - pos = bfd_tell (abfd) - 1; - - if (bfd_bread (hdr, (bfd_size_type) 3, abfd) != 3) - goto error_return; - - if (! ISHEX (hdr[1]) || ! ISHEX (hdr[2])) - { - if (! ISHEX (hdr[1])) - c = hdr[1]; - else - c = hdr[2]; - srec_bad_byte (abfd, lineno, c, error); - goto error_return; - } - - check_sum = bytes = HEX (hdr + 1); - if (bytes * 2 > bufsize) - { - if (buf != NULL) - free (buf); - buf = (bfd_byte *) bfd_malloc ((bfd_size_type) bytes * 2); - if (buf == NULL) - goto error_return; - bufsize = bytes * 2; - } - - if (bfd_bread (buf, (bfd_size_type) bytes * 2, abfd) != bytes * 2) - goto error_return; - - /* Ignore the checksum byte. */ - --bytes; - - address = 0; - data = buf; - switch (hdr[0]) - { - case '0': - case '5': - /* Prologue--ignore the file name, but stop building a - section at this point. */ - sec = NULL; - break; - - case '3': - check_sum += HEX (data); - address = HEX (data); - data += 2; - --bytes; - /* Fall through. */ - case '2': - check_sum += HEX (data); - address = (address << 8) | HEX (data); - data += 2; - --bytes; - /* Fall through. */ - case '1': - check_sum += HEX (data); - address = (address << 8) | HEX (data); - data += 2; - check_sum += HEX (data); - address = (address << 8) | HEX (data); - data += 2; - bytes -= 2; - - if (sec != NULL - && sec->vma + sec->size == address) - { - /* This data goes at the end of the section we are - currently building. */ - sec->size += bytes; - } - else - { - char secbuf[20]; - char *secname; - bfd_size_type amt; - flagword flags; - - sprintf (secbuf, ".sec%d", bfd_count_sections (abfd) + 1); - amt = strlen (secbuf) + 1; - secname = (char *) bfd_alloc (abfd, amt); - strcpy (secname, secbuf); - flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC; - sec = bfd_make_section_with_flags (abfd, secname, flags); - if (sec == NULL) - goto error_return; - sec->vma = address; - sec->lma = address; - sec->size = bytes; - sec->filepos = pos; - } - - while (bytes > 0) - { - check_sum += HEX (data); - data += 2; - bytes--; - } - check_sum = 255 - (check_sum & 0xff); - if (check_sum != HEX (data)) - { - (*_bfd_error_handler) - (_("%B:%d: Bad checksum in S-record file\n"), - abfd, lineno); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - - break; - - case '7': - check_sum += HEX (data); - address = HEX (data); - data += 2; - /* Fall through. */ - case '8': - check_sum += HEX (data); - address = (address << 8) | HEX (data); - data += 2; - /* Fall through. */ - case '9': - check_sum += HEX (data); - address = (address << 8) | HEX (data); - data += 2; - check_sum += HEX (data); - address = (address << 8) | HEX (data); - data += 2; - - /* This is a termination record. */ - abfd->start_address = address; - - check_sum = 255 - (check_sum & 0xff); - if (check_sum != HEX (data)) - { - (*_bfd_error_handler) - (_("%B:%d: Bad checksum in S-record file\n"), - abfd, lineno); - bfd_set_error (bfd_error_bad_value); - goto error_return; - } - - if (buf != NULL) - free (buf); - - return TRUE; - } - } - break; - } - } - - if (error) - goto error_return; - - if (buf != NULL) - free (buf); - - return TRUE; - - error_return: - if (symbuf != NULL) - free (symbuf); - if (buf != NULL) - free (buf); - return FALSE; -} - -/* Check whether an existing file is an S-record file. */ - -static const bfd_target * -srec_object_p (bfd *abfd) -{ - void * tdata_save; - bfd_byte b[4]; - - srec_init (); - - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 - || bfd_bread (b, (bfd_size_type) 4, abfd) != 4) - return NULL; - - if (b[0] != 'S' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3])) - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - tdata_save = abfd->tdata.any; - if (! srec_mkobject (abfd) || ! srec_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; - } - - if (abfd->symcount > 0) - abfd->flags |= HAS_SYMS; - - return abfd->xvec; -} - -/* Check whether an existing file is an S-record file with symbols. */ - -static const bfd_target * -symbolsrec_object_p (bfd *abfd) -{ - void * tdata_save; - char b[2]; - - srec_init (); - - if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 - || bfd_bread (b, (bfd_size_type) 2, abfd) != 2) - return NULL; - - if (b[0] != '$' || b[1] != '$') - { - bfd_set_error (bfd_error_wrong_format); - return NULL; - } - - tdata_save = abfd->tdata.any; - if (! srec_mkobject (abfd) || ! srec_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; - } - - if (abfd->symcount > 0) - abfd->flags |= HAS_SYMS; - - return abfd->xvec; -} - -/* Read in the contents of a section in an S-record file. */ - -static bfd_boolean -srec_read_section (bfd *abfd, asection *section, bfd_byte *contents) -{ - int c; - bfd_size_type sofar = 0; - bfd_boolean error = FALSE; - bfd_byte *buf = NULL; - size_t bufsize = 0; - - if (bfd_seek (abfd, section->filepos, SEEK_SET) != 0) - goto error_return; - - while ((c = srec_get_byte (abfd, &error)) != EOF) - { - bfd_byte hdr[3]; - unsigned int bytes; - bfd_vma address; - bfd_byte *data; - - if (c == '\r' || c == '\n') - continue; - - /* This is called after srec_scan has already been called, so we - ought to know the exact format. */ - BFD_ASSERT (c == 'S'); - - if (bfd_bread (hdr, (bfd_size_type) 3, abfd) != 3) - goto error_return; - - BFD_ASSERT (ISHEX (hdr[1]) && ISHEX (hdr[2])); - - bytes = HEX (hdr + 1); - - if (bytes * 2 > bufsize) - { - if (buf != NULL) - free (buf); - buf = (bfd_byte *) bfd_malloc ((bfd_size_type) bytes * 2); - if (buf == NULL) - goto error_return; - bufsize = bytes * 2; - } - - if (bfd_bread (buf, (bfd_size_type) bytes * 2, abfd) != bytes * 2) - goto error_return; - - address = 0; - data = buf; - switch (hdr[0]) - { - default: - BFD_ASSERT (sofar == section->size); - if (buf != NULL) - free (buf); - return TRUE; - - case '3': - address = HEX (data); - data += 2; - --bytes; - /* Fall through. */ - case '2': - address = (address << 8) | HEX (data); - data += 2; - --bytes; - /* Fall through. */ - case '1': - address = (address << 8) | HEX (data); - data += 2; - address = (address << 8) | HEX (data); - data += 2; - bytes -= 2; - - if (address != section->vma + sofar) - { - /* We've come to the end of this section. */ - BFD_ASSERT (sofar == section->size); - if (buf != NULL) - free (buf); - return TRUE; - } - - /* Don't consider checksum. */ - --bytes; - - while (bytes-- != 0) - { - contents[sofar] = HEX (data); - data += 2; - ++sofar; - } - - break; - } - } - - if (error) - goto error_return; - - BFD_ASSERT (sofar == section->size); - - if (buf != NULL) - free (buf); - - return TRUE; - - error_return: - if (buf != NULL) - free (buf); - return FALSE; -} - -/* Get the contents of a section in an S-record file. */ - -static bfd_boolean -srec_get_section_contents (bfd *abfd, - asection *section, - void * location, - file_ptr offset, - bfd_size_type count) -{ - if (count == 0) - return TRUE; - - if (offset + count < count - || offset + count > section->size) - { - bfd_set_error (bfd_error_invalid_operation); - return FALSE; - } - - if (section->used_by_bfd == NULL) - { - section->used_by_bfd = bfd_alloc (abfd, section->size); - if (section->used_by_bfd == NULL) - return FALSE; - - if (! srec_read_section (abfd, section, - (bfd_byte *) section->used_by_bfd)) - return FALSE; - } - - memcpy (location, (bfd_byte *) section->used_by_bfd + offset, - (size_t) count); - - return TRUE; -} - -/* Set the architecture. We accept an unknown architecture here. */ - -static bfd_boolean -srec_set_arch_mach (bfd *abfd, enum bfd_architecture arch, unsigned long mach) -{ - if (arch != bfd_arch_unknown) - return bfd_default_set_arch_mach (abfd, arch, mach); - - abfd->arch_info = & bfd_default_arch_struct; - return TRUE; -} - -/* We have to save up all the Srecords for a splurge before output. */ - -static bfd_boolean -srec_set_section_contents (bfd *abfd, - sec_ptr section, - const void * location, - file_ptr offset, - bfd_size_type bytes_to_do) -{ - int opb = bfd_octets_per_byte (abfd); - tdata_type *tdata = abfd->tdata.srec_data; - srec_data_list_type *entry; - - entry = (srec_data_list_type *) bfd_alloc (abfd, sizeof (* entry)); - if (entry == NULL) - return FALSE; - - if (bytes_to_do - && (section->flags & SEC_ALLOC) - && (section->flags & SEC_LOAD)) - { - bfd_byte *data; - - data = (bfd_byte *) bfd_alloc (abfd, bytes_to_do); - if (data == NULL) - return FALSE; - memcpy ((void *) data, location, (size_t) bytes_to_do); - - /* Ff S3Forced is TRUE then always select S3 records, - regardless of the siez of the addresses. */ - if (S3Forced) - tdata->type = 3; - else if ((section->lma + (offset + bytes_to_do) / opb - 1) <= 0xffff) - ; /* The default, S1, is OK. */ - else if ((section->lma + (offset + bytes_to_do) / opb - 1) <= 0xffffff - && tdata->type <= 2) - tdata->type = 2; - else - tdata->type = 3; - - entry->data = data; - entry->where = section->lma + offset / opb; - entry->size = bytes_to_do; - - /* Sort the records by address. Optimize for the common case of - adding a record to the end of the list. */ - if (tdata->tail != NULL - && entry->where >= tdata->tail->where) - { - tdata->tail->next = entry; - entry->next = NULL; - tdata->tail = entry; - } - else - { - srec_data_list_type **look; - - for (look = &tdata->head; - *look != NULL && (*look)->where < entry->where; - look = &(*look)->next) - ; - entry->next = *look; - *look = entry; - if (entry->next == NULL) - tdata->tail = entry; - } - } - return TRUE; -} - -/* Write a record of type, of the supplied number of bytes. The - supplied bytes and length don't have a checksum. That's worked out - here. */ - -static bfd_boolean -srec_write_record (bfd *abfd, - unsigned int type, - bfd_vma address, - const bfd_byte *data, - const bfd_byte *end) -{ - char buffer[2 * MAXCHUNK + 6]; - unsigned int check_sum = 0; - const bfd_byte *src = data; - char *dst = buffer; - char *length; - bfd_size_type wrlen; - - *dst++ = 'S'; - *dst++ = '0' + type; - - length = dst; - dst += 2; /* Leave room for dst. */ - - switch (type) - { - case 3: - case 7: - TOHEX (dst, (address >> 24), check_sum); - dst += 2; - case 8: - case 2: - TOHEX (dst, (address >> 16), check_sum); - dst += 2; - case 9: - case 1: - case 0: - TOHEX (dst, (address >> 8), check_sum); - dst += 2; - TOHEX (dst, (address), check_sum); - dst += 2; - break; - - } - for (src = data; src < end; src++) - { - TOHEX (dst, *src, check_sum); - dst += 2; - } - - /* Fill in the length. */ - TOHEX (length, (dst - length) / 2, check_sum); - check_sum &= 0xff; - check_sum = 255 - check_sum; - TOHEX (dst, check_sum, check_sum); - dst += 2; - - *dst++ = '\r'; - *dst++ = '\n'; - wrlen = dst - buffer; - - return bfd_bwrite ((void *) buffer, wrlen, abfd) == wrlen; -} - -static bfd_boolean -srec_write_header (bfd *abfd) -{ - unsigned int len = strlen (abfd->filename); - - /* I'll put an arbitrary 40 char limit on header size. */ - if (len > 40) - len = 40; - - return srec_write_record (abfd, 0, (bfd_vma) 0, - (bfd_byte *) abfd->filename, - (bfd_byte *) abfd->filename + len); -} - -static bfd_boolean -srec_write_section (bfd *abfd, - tdata_type *tdata, - srec_data_list_type *list) -{ - unsigned int octets_written = 0; - bfd_byte *location = list->data; - - /* Validate number of data bytes to write. The srec length byte - counts the address, data and crc bytes. S1 (tdata->type == 1) - records have two address bytes, S2 (tdata->type == 2) records - have three, and S3 (tdata->type == 3) records have four. - The total length can't exceed 255, and a zero data length will - spin for a long time. */ - if (Chunk == 0) - Chunk = 1; - else if (Chunk > MAXCHUNK - tdata->type - 2) - Chunk = MAXCHUNK - tdata->type - 2; - - while (octets_written < list->size) - { - bfd_vma address; - unsigned int octets_this_chunk = list->size - octets_written; - - if (octets_this_chunk > Chunk) - octets_this_chunk = Chunk; - - address = list->where + octets_written / bfd_octets_per_byte (abfd); - - if (! srec_write_record (abfd, - tdata->type, - address, - location, - location + octets_this_chunk)) - return FALSE; - - octets_written += octets_this_chunk; - location += octets_this_chunk; - } - - return TRUE; -} - -static bfd_boolean -srec_write_terminator (bfd *abfd, tdata_type *tdata) -{ - return srec_write_record (abfd, 10 - tdata->type, - abfd->start_address, NULL, NULL); -} - -static bfd_boolean -srec_write_symbols (bfd *abfd) -{ - /* Dump out the symbols of a bfd. */ - int i; - int count = bfd_get_symcount (abfd); - - if (count) - { - bfd_size_type len; - asymbol **table = bfd_get_outsymbols (abfd); - - len = strlen (abfd->filename); - if (bfd_bwrite ("$$ ", (bfd_size_type) 3, abfd) != 3 - || bfd_bwrite (abfd->filename, len, abfd) != len - || bfd_bwrite ("\r\n", (bfd_size_type) 2, abfd) != 2) - return FALSE; - - for (i = 0; i < count; i++) - { - asymbol *s = table[i]; - if (! bfd_is_local_label (abfd, s) - && (s->flags & BSF_DEBUGGING) == 0) - { - /* Just dump out non debug symbols. */ - char buf[43], *p; - - len = strlen (s->name); - if (bfd_bwrite (" ", (bfd_size_type) 2, abfd) != 2 - || bfd_bwrite (s->name, len, abfd) != len) - return FALSE; - - sprintf_vma (buf + 2, (s->value - + s->section->output_section->lma - + s->section->output_offset)); - p = buf + 2; - while (p[0] == '0' && p[1] != 0) - p++; - len = strlen (p); - p[len] = '\r'; - p[len + 1] = '\n'; - *--p = '$'; - *--p = ' '; - len += 4; - if (bfd_bwrite (p, len, abfd) != len) - return FALSE; - } - } - if (bfd_bwrite ("$$ \r\n", (bfd_size_type) 5, abfd) != 5) - return FALSE; - } - - return TRUE; -} - -static bfd_boolean -internal_srec_write_object_contents (bfd *abfd, int symbols) -{ - tdata_type *tdata = abfd->tdata.srec_data; - srec_data_list_type *list; - - if (symbols) - { - if (! srec_write_symbols (abfd)) - return FALSE; - } - - if (! srec_write_header (abfd)) - return FALSE; - - /* Now wander though all the sections provided and output them. */ - list = tdata->head; - - while (list != (srec_data_list_type *) NULL) - { - if (! srec_write_section (abfd, tdata, list)) - return FALSE; - list = list->next; - } - return srec_write_terminator (abfd, tdata); -} - -static bfd_boolean -srec_write_object_contents (bfd *abfd) -{ - return internal_srec_write_object_contents (abfd, 0); -} - -static bfd_boolean -symbolsrec_write_object_contents (bfd *abfd) -{ - return internal_srec_write_object_contents (abfd, 1); -} - -static int -srec_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info ATTRIBUTE_UNUSED) -{ - return 0; -} - -/* Return the amount of memory needed to read the symbol table. */ - -static long -srec_get_symtab_upper_bound (bfd *abfd) -{ - return (bfd_get_symcount (abfd) + 1) * sizeof (asymbol *); -} - -/* Return the symbol table. */ - -static long -srec_canonicalize_symtab (bfd *abfd, asymbol **alocation) -{ - bfd_size_type symcount = bfd_get_symcount (abfd); - asymbol *csymbols; - unsigned int i; - - csymbols = abfd->tdata.srec_data->csymbols; - if (csymbols == NULL && symcount != 0) - { - asymbol *c; - struct srec_symbol *s; - - csymbols = (asymbol *) bfd_alloc (abfd, symcount * sizeof (asymbol)); - if (csymbols == NULL) - return -1; - abfd->tdata.srec_data->csymbols = csymbols; - - for (s = abfd->tdata.srec_data->symbols, c = csymbols; - s != NULL; - s = s->next, ++c) - { - c->the_bfd = abfd; - c->name = s->name; - c->value = s->val; - c->flags = BSF_GLOBAL; - c->section = bfd_abs_section_ptr; - c->udata.p = NULL; - } - } - - for (i = 0; i < symcount; i++) - *alocation++ = csymbols++; - *alocation = NULL; - - return symcount; -} - -static void -srec_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED, - asymbol *symbol, - symbol_info *ret) -{ - bfd_symbol_info (symbol, ret); -} - -static void -srec_print_symbol (bfd *abfd, - void * afile, - asymbol *symbol, - bfd_print_symbol_type how) -{ - FILE *file = (FILE *) afile; - - switch (how) - { - case bfd_print_symbol_name: - fprintf (file, "%s", symbol->name); - break; - default: - bfd_print_symbol_vandf (abfd, (void *) file, symbol); - fprintf (file, " %-5s %s", - symbol->section->name, - symbol->name); - } -} - -#define srec_close_and_cleanup _bfd_generic_close_and_cleanup -#define srec_bfd_free_cached_info _bfd_generic_bfd_free_cached_info -#define srec_new_section_hook _bfd_generic_new_section_hook -#define srec_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) -#define srec_bfd_is_local_label_name bfd_generic_is_local_label_name -#define srec_get_lineno _bfd_nosymbols_get_lineno -#define srec_find_nearest_line _bfd_nosymbols_find_nearest_line -#define srec_find_inliner_info _bfd_nosymbols_find_inliner_info -#define srec_make_empty_symbol _bfd_generic_make_empty_symbol -#define srec_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol -#define srec_read_minisymbols _bfd_generic_read_minisymbols -#define srec_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol -#define srec_get_section_contents_in_window _bfd_generic_get_section_contents_in_window -#define srec_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents -#define srec_bfd_relax_section bfd_generic_relax_section -#define srec_bfd_gc_sections bfd_generic_gc_sections -#define srec_bfd_lookup_section_flags bfd_generic_lookup_section_flags -#define srec_bfd_merge_sections bfd_generic_merge_sections -#define srec_bfd_is_group_section bfd_generic_is_group_section -#define srec_bfd_discard_group bfd_generic_discard_group -#define srec_section_already_linked _bfd_generic_section_already_linked -#define srec_bfd_define_common_symbol bfd_generic_define_common_symbol -#define srec_bfd_link_hash_table_create _bfd_generic_link_hash_table_create -#define srec_bfd_link_hash_table_free _bfd_generic_link_hash_table_free -#define srec_bfd_link_add_symbols _bfd_generic_link_add_symbols -#define srec_bfd_link_just_syms _bfd_generic_link_just_syms -#define srec_bfd_copy_link_hash_symbol_type \ - _bfd_generic_copy_link_hash_symbol_type -#define srec_bfd_final_link _bfd_generic_final_link -#define srec_bfd_link_split_section _bfd_generic_link_split_section - -const bfd_target srec_vec = -{ - "srec", /* Name. */ - bfd_target_srec_flavour, - BFD_ENDIAN_UNKNOWN, /* Target byte order. */ - BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */ - (HAS_RELOC | EXEC_P | /* Object flags. */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS - | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */ - 0, /* Leading underscore. */ - ' ', /* AR_pad_char. */ - 16, /* AR_max_namelen. */ - 0, /* match priority. */ - 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, - srec_object_p, /* bfd_check_format. */ - _bfd_dummy_target, - _bfd_dummy_target, - }, - { - bfd_false, - srec_mkobject, - _bfd_generic_mkarchive, - bfd_false, - }, - { /* bfd_write_contents. */ - bfd_false, - srec_write_object_contents, - _bfd_write_archive_contents, - bfd_false, - }, - - BFD_JUMP_TABLE_GENERIC (srec), - BFD_JUMP_TABLE_COPY (_bfd_generic), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), - BFD_JUMP_TABLE_SYMBOLS (srec), - BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), - BFD_JUMP_TABLE_WRITE (srec), - BFD_JUMP_TABLE_LINK (srec), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - NULL, - - NULL -}; - -const bfd_target symbolsrec_vec = -{ - "symbolsrec", /* Name. */ - bfd_target_srec_flavour, - BFD_ENDIAN_UNKNOWN, /* Target byte order. */ - BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */ - (HAS_RELOC | EXEC_P | /* Object flags. */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), - (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS - | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */ - 0, /* Leading underscore. */ - ' ', /* AR_pad_char. */ - 16, /* AR_max_namelen. */ - 0, /* match priority. */ - 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, /* Headers. */ - - { - _bfd_dummy_target, - symbolsrec_object_p, /* bfd_check_format. */ - _bfd_dummy_target, - _bfd_dummy_target, - }, - { - bfd_false, - srec_mkobject, - _bfd_generic_mkarchive, - bfd_false, - }, - { /* bfd_write_contents. */ - bfd_false, - symbolsrec_write_object_contents, - _bfd_write_archive_contents, - bfd_false, - }, - - BFD_JUMP_TABLE_GENERIC (srec), - BFD_JUMP_TABLE_COPY (_bfd_generic), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), - BFD_JUMP_TABLE_SYMBOLS (srec), - BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), - BFD_JUMP_TABLE_WRITE (srec), - BFD_JUMP_TABLE_LINK (srec), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - NULL, - - NULL -}; 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