/* BFD back-end for s-record objects.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000
+ 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.
S-Record handling
DESCRIPTION
-
+
Ordinary S-Records cannot hold anything but addresses and
data, so that's all that we implement.
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
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
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
We allow symbols to be anywhere in the data stream - the module names
are always ignored.
-
+
*/
#include "bfd.h"
#include "libiberty.h"
#include <ctype.h>
+static void srec_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
+static void srec_print_symbol
+ PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type));
static void srec_init PARAMS ((void));
static boolean srec_mkobject PARAMS ((bfd *));
static int srec_get_byte PARAMS ((bfd *, boolean *));
const bfd_byte *));
static boolean srec_write_header PARAMS ((bfd *));
static boolean srec_write_symbols PARAMS ((bfd *));
-
-/* Macros for converting between hex and binary. */
+static boolean srec_new_symbol PARAMS ((bfd *, const char *, bfd_vma));
+static boolean srec_get_section_contents
+ PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
+static boolean srec_set_arch_mach
+ PARAMS ((bfd *, enum bfd_architecture, unsigned long));
+static boolean srec_set_section_contents
+ PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
+static boolean internal_srec_write_object_contents PARAMS ((bfd *, int));
+static boolean srec_write_object_contents PARAMS ((bfd *));
+static boolean symbolsrec_write_object_contents PARAMS ((bfd *));
+static int srec_sizeof_headers PARAMS ((bfd *, boolean));
+static asymbol *srec_make_empty_symbol PARAMS ((bfd *));
+static long srec_get_symtab_upper_bound PARAMS ((bfd *));
+static long srec_get_symtab PARAMS ((bfd *, asymbol **));
+
+/* Macros for converting between hex and binary. */
static CONST char digs[] = "0123456789ABCDEF";
ch += ((x) & 0xff);
#define ISHEX(x) hex_p(x)
-/* Initialize by filling in the hex conversion array. */
+/* Initialize by filling in the hex conversion array. */
static void
srec_init ()
}
}
-/* The maximum number of bytes on a line is FF */
+/* The maximum number of bytes on a line is FF. */
#define MAXCHUNK 0xff
-/* The number of bytes we fit onto a line on output */
-#define CHUNK 21
+
+/* Default size for a CHUNK. */
+#define DEFAULT_CHUNK 16
+
+/* The number of 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. */
+boolean S3Forced = 0;
/* 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. */
buf[1] = '\0';
}
(*_bfd_error_handler)
- ("%s:%d: Unexpected character `%s' in S-record file\n",
+ (_("%s:%d: Unexpected character `%s' in S-record file\n"),
bfd_get_filename (abfd), lineno, buf);
bfd_set_error (bfd_error_bad_value);
}
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;
break;
case ' ':
- {
- char *symname;
- bfd_vma symval;
-
- /* Starting a symbol definition. */
- while ((c = srec_get_byte (abfd, &error)) != EOF
- && (c == ' ' || c == '\t'))
- ;
- if (c == EOF)
- {
- srec_bad_byte (abfd, lineno, c, error);
- goto error_return;
- }
+ do
+ {
+ unsigned int alc;
+ char *p, *symname;
+ bfd_vma symval;
- obstack_1grow (&abfd->memory, c);
- while ((c = srec_get_byte (abfd, &error)) != EOF
- && ! isspace (c))
- obstack_1grow (&abfd->memory, c);
- if (c == EOF)
- {
- srec_bad_byte (abfd, lineno, c, error);
- goto error_return;
- }
+ /* Starting a symbol definition. */
+ while ((c = srec_get_byte (abfd, &error)) != EOF
+ && (c == ' ' || c == '\t'))
+ ;
- symname = obstack_finish (&abfd->memory);
- if (symname == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- goto error_return;
- }
-
- while ((c = srec_get_byte (abfd, &error)) != EOF
- && (c == ' ' || c == '\t'))
- ;
- if (c == EOF)
- {
- srec_bad_byte (abfd, lineno, c, error);
- goto error_return;
- }
+ if (c == '\n' || c == '\r')
+ break;
- /* Skip a dollar sign before the hex value. */
- if (c == '$')
- {
- c = srec_get_byte (abfd, &error);
- if (c == EOF)
- {
- srec_bad_byte (abfd, lineno, c, error);
- goto error_return;
- }
- }
+ if (c == EOF)
+ {
+ srec_bad_byte (abfd, lineno, c, error);
+ goto error_return;
+ }
- symval = 0;
- while (ISHEX (c))
- {
- symval <<= 4;
- symval += NIBBLE (c);
- c = srec_get_byte (abfd, &error);
- }
+ alc = 10;
+ symbuf = (char *) bfd_malloc (alc + 1);
+ if (symbuf == NULL)
+ goto error_return;
- if (c == EOF || ! isspace (c))
- {
- srec_bad_byte (abfd, lineno, c, error);
+ p = symbuf;
+
+ *p++ = c;
+ while ((c = srec_get_byte (abfd, &error)) != EOF
+ && ! isspace (c))
+ {
+ if ((unsigned int) (p - symbuf) >= alc)
+ {
+ char *n;
+
+ alc *= 2;
+ n = (char *) bfd_realloc (symbuf, alc + 1);
+ if (n == NULL)
+ goto error_return;
+ p = n + (p - symbuf);
+ symbuf = n;
+ }
+
+ *p++ = c;
+ }
+
+ if (c == EOF)
+ {
+ srec_bad_byte (abfd, lineno, c, error);
+ goto error_return;
+ }
+
+ *p++ = '\0';
+ symname = bfd_alloc (abfd, p - symbuf);
+ if (symname == NULL)
goto error_return;
- }
+ strcpy (symname, symbuf);
+ free (symbuf);
+ symbuf = NULL;
+
+ while ((c = srec_get_byte (abfd, &error)) != EOF
+ && (c == ' ' || c == '\t'))
+ ;
+ if (c == EOF)
+ {
+ srec_bad_byte (abfd, lineno, c, error);
+ goto error_return;
+ }
+
+ /* Skip a dollar sign before the hex value. */
+ if (c == '$')
+ {
+ 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 (! srec_new_symbol (abfd, symname, symval))
+ goto error_return;
+ }
+ while (c == ' ' || c == '\t')
+ ;
- if (! srec_new_symbol (abfd, symname, symval))
+ if (c == '\n')
+ ++lineno;
+ else if (c != '\r')
+ {
+ srec_bad_byte (abfd, lineno, c, error);
goto error_return;
+ }
- if (c == '\n')
- ++lineno;
-
- }
break;
-
+
case 'S':
{
file_ptr pos;
return true;
error_return:
+ if (symbuf != NULL)
+ free (symbuf);
if (buf != NULL)
free (buf);
return false;
|| ! srec_scan (abfd))
return NULL;
+ if (abfd->symcount > 0)
+ abfd->flags |= HAS_SYMS;
+
return abfd->xvec;
}
|| ! srec_scan (abfd))
return NULL;
+ if (abfd->symcount > 0)
+ abfd->flags |= HAS_SYMS;
+
return abfd->xvec;
}
return true;
}
-/* we have to save up all the Srecords for a splurge before output */
+/* Set the architecture. We accept an unknown architecture here. */
+
+static boolean
+srec_set_arch_mach (abfd, arch, mach)
+ bfd *abfd;
+ enum bfd_architecture arch;
+ unsigned long mach;
+{
+ if (arch == bfd_arch_unknown)
+ {
+ abfd->arch_info = &bfd_default_arch_struct;
+ return true;
+ }
+ return bfd_default_set_arch_mach (abfd, arch, mach);
+}
+
+/* We have to save up all the Srecords for a splurge before output. */
static boolean
srec_set_section_contents (abfd, section, location, offset, bytes_to_do)
return false;
memcpy ((PTR) data, location, (size_t) bytes_to_do);
- if ((section->lma + offset + bytes_to_do - 1) <= 0xffff)
- {
-
- }
+ /* 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 - 1) <= 0xffff)
+ ; /* The default, S1, is OK. */
else if ((section->lma + offset + bytes_to_do - 1) <= 0xffffff
- && tdata->type < 2)
- {
- tdata->type = 2;
- }
+ && tdata->type <= 2)
+ tdata->type = 2;
else
- {
- tdata->type = 3;
- }
+ tdata->type = 3;
entry->data = data;
entry->where = section->lma + offset;
/* 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
-*/
+ here. */
+
static boolean
srec_write_record (abfd, type, address, data, end)
bfd *abfd;
*dst++ = '0' + type;
length = dst;
- dst += 2; /* leave room for dst*/
+ dst += 2; /* Leave room for dst. */
switch (type)
{
dst += 2;
}
- /* Fill in the length */
+ /* Fill in the length. */
TOHEX (length, (dst - length) / 2, check_sum);
check_sum &= 0xff;
check_sum = 255 - check_sum;
return true;
}
-
-
static boolean
srec_write_header (abfd)
bfd *abfd;
bfd_byte *dst = buffer;
unsigned int i;
- /* I'll put an arbitary 40 char limit on header size */
+ /* I'll put an arbitary 40 char limit on header size. */
for (i = 0; i < 40 && abfd->filename[i]; i++)
- {
- *dst++ = abfd->filename[i];
- }
+ *dst++ = abfd->filename[i];
+
return srec_write_record (abfd, 0, 0, buffer, dst);
}
tdata_type *tdata;
srec_data_list_type *list;
{
- unsigned int bytes_written = 0;
+ unsigned int octets_written = 0;
bfd_byte *location = list->data;
- while (bytes_written < list->size)
+ while (octets_written < list->size)
{
bfd_vma address;
+ unsigned int octets_this_chunk = list->size - octets_written;
- unsigned int bytes_this_chunk = list->size - bytes_written;
-
- if (bytes_this_chunk > CHUNK)
- {
- bytes_this_chunk = CHUNK;
- }
+ if (octets_this_chunk > Chunk)
+ octets_this_chunk = Chunk;
- address = list->where + bytes_written;
+ address = list->where + octets_written / bfd_octets_per_byte (abfd);
if (! srec_write_record (abfd,
tdata->type,
address,
location,
- location + bytes_this_chunk))
+ location + octets_this_chunk))
return false;
- bytes_written += bytes_this_chunk;
- location += bytes_this_chunk;
+ octets_written += octets_this_chunk;
+ location += octets_this_chunk;
}
return true;
abfd->start_address, buffer, buffer);
}
-
-
static boolean
srec_write_symbols (abfd)
bfd *abfd;
{
char buffer[MAXCHUNK];
- /* Dump out the symbols of a bfd */
+ /* Dump out the symbols of a bfd. */
int i;
int count = bfd_get_symcount (abfd);
for (i = 0; i < count; i++)
{
asymbol *s = table[i];
-#if 0
- int len = strlen (s->name);
-
- /* If this symbol has a .[ocs] in it, it's probably a file name
- and we'll output that as the module name */
-
- if (len > 3 && s->name[len - 2] == '.')
- {
- int l;
- sprintf (buffer, "$$ %s\r\n", s->name);
- l = strlen (buffer);
- if (bfd_write (buffer, l, 1, abfd) != l)
- return false;
- }
- else
-#endif
- if (s->flags & (BSF_GLOBAL | BSF_LOCAL)
- && (s->flags & BSF_DEBUGGING) == 0
- && s->name[0] != '.'
- && s->name[0] != 't')
+ if (! bfd_is_local_label (abfd, s)
+ && (s->flags & BSF_DEBUGGING) == 0)
{
- /* Just dump out non debug symbols */
+ /* Just dump out non debug symbols. */
bfd_size_type l;
char buf2[40], *p;
if (! srec_write_header (abfd))
return false;
- /* Now wander though all the sections provided and output them */
+ /* Now wander though all the sections provided and output them. */
list = tdata->head;
while (list != (srec_data_list_type *) NULL)
return internal_srec_write_object_contents (abfd, 1);
}
-/*ARGSUSED*/
static int
srec_sizeof_headers (abfd, exec)
- bfd *abfd;
- boolean exec;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ boolean exec ATTRIBUTE_UNUSED;
{
return 0;
}
c->udata.p = NULL;
}
}
-
+
for (i = 0; i < symcount; i++)
*alocation++ = csymbols++;
*alocation = NULL;
return symcount;
}
-/*ARGSUSED*/
-void
+static void
srec_get_symbol_info (ignore_abfd, symbol, ret)
- bfd *ignore_abfd;
+ bfd *ignore_abfd ATTRIBUTE_UNUSED;
asymbol *symbol;
symbol_info *ret;
{
bfd_symbol_info (symbol, ret);
}
-/*ARGSUSED*/
-void
+static void
srec_print_symbol (ignore_abfd, afile, symbol, how)
- bfd *ignore_abfd;
+ bfd *ignore_abfd ATTRIBUTE_UNUSED;
PTR afile;
asymbol *symbol;
bfd_print_symbol_type how;
#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_local_label bfd_generic_is_local_label
+#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_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define srec_get_section_contents_in_window \
_bfd_generic_get_section_contents_in_window
-#define srec_set_arch_mach bfd_default_set_arch_mach
-
#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_merge_sections bfd_generic_merge_sections
#define srec_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
#define srec_bfd_link_add_symbols _bfd_generic_link_add_symbols
#define srec_bfd_final_link _bfd_generic_final_link
{
"srec", /* name */
bfd_target_srec_flavour,
- true, /* target byte order */
- true, /* target headers byte order */
+ 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),
BFD_JUMP_TABLE_LINK (srec),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+ NULL,
+
(PTR) 0
};
-
-
const bfd_target symbolsrec_vec =
{
"symbolsrec", /* name */
bfd_target_srec_flavour,
- true, /* target byte order */
- true, /* target headers byte order */
+ 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),
BFD_JUMP_TABLE_LINK (srec),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+ NULL,
+
(PTR) 0
};
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