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octets vs bytes changes for binutils

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This commit is contained in:
Timothy Wall
2000-02-03 18:12:55 +00:00
parent 8b93c6380e
commit 940b2b788c
6 changed files with 142 additions and 102 deletions
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6
binutils/ChangeLog
View File

@ -1,3 +1,9 @@
2000-02-03 Timothy Wall <twall@redhat.com>
* binutils/objdump.c (dump_section_header, find_symbol_for_address,
show_line, disassemble_bytes, disassemble_data, dump_data):
distinguish between octets and bytes.
2000-01-27 Thomas de Lellis <tdel@windriver.com>
* nm.c (print_symbol_info_bsd): Use bfd_is_undefined_symclass to

211
binutils/objdump.c
View File

@ -337,10 +337,11 @@ dump_section_header (abfd, section, ignored)
PTR ignored ATTRIBUTE_UNUSED;
{
char *comma = "";
int opb = bfd_octets_per_byte (abfd);
printf ("%3d %-13s %08lx ", section->index,
bfd_get_section_name (abfd, section),
(unsigned long) bfd_section_size (abfd, section));
(unsigned long) bfd_section_size (abfd, section) / opb);
printf_vma (bfd_get_section_vma (abfd, section));
printf (" ");
printf_vma (section->lma);
@ -739,6 +740,7 @@ find_symbol_for_address (abfd, sec, vma, require_sec, place)
long min = 0;
long max = sorted_symcount;
long thisplace;
int opb = bfd_octets_per_byte (abfd);
if (sorted_symcount < 1)
return NULL;
@ -786,7 +788,7 @@ find_symbol_for_address (abfd, sec, vma, require_sec, place)
|| ((abfd->flags & HAS_RELOC) != 0
&& vma >= bfd_get_section_vma (abfd, sec)
&& vma < (bfd_get_section_vma (abfd, sec)
+ bfd_section_size (abfd, sec)))))
+ bfd_section_size (abfd, sec) / opb))))
{
long i;
@ -1010,10 +1012,10 @@ skip_to_line (p, line, show)
listing. */
static void
show_line (abfd, section, off)
show_line (abfd, section, addr_offset)
bfd *abfd;
asection *section;
bfd_vma off;
bfd_vma addr_offset;
{
CONST char *filename;
CONST char *functionname;
@ -1022,7 +1024,7 @@ show_line (abfd, section, off)
if (! with_line_numbers && ! with_source_code)
return;
if (! bfd_find_nearest_line (abfd, section, syms, off, &filename,
if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
&functionname, &line))
return;
@ -1231,31 +1233,33 @@ objdump_sprintf (va_alist)
/* Disassemble some data in memory between given values. */
static void
disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
disassemble_bytes (info, disassemble_fn, insns, data,
start_offset, stop_offset, relppp,
relppend)
struct disassemble_info *info;
disassembler_ftype disassemble_fn;
boolean insns;
bfd_byte *data;
bfd_vma start;
bfd_vma stop;
bfd_vma start_offset;
bfd_vma stop_offset;
arelent ***relppp;
arelent **relppend;
{
struct objdump_disasm_info *aux;
asection *section;
int bytes_per_line;
int octets_per_line;
boolean done_dot;
int skip_addr_chars;
bfd_vma i;
bfd_vma addr_offset;
int opb = info->octets_per_byte;
aux = (struct objdump_disasm_info *) info->application_data;
section = aux->sec;
if (insns)
bytes_per_line = 4;
octets_per_line = 4;
else
bytes_per_line = 16;
octets_per_line = 16;
/* Figure out how many characters to skip at the start of an
address, to make the disassembly look nicer. We discard leading
@ -1267,8 +1271,8 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
char buf[30];
char *s;
sprintf_vma (buf,
section->vma + bfd_section_size (section->owner, section));
sprintf_vma (buf, section->vma +
bfd_section_size (section->owner, section) / opb);
s = buf;
while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0'
&& s[4] == '0')
@ -1281,34 +1285,35 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
info->insn_info_valid = 0;
done_dot = false;
i = start;
while (i < stop)
addr_offset = start_offset;
while (addr_offset < stop_offset)
{
bfd_vma z;
int bytes = 0;
int octets = 0;
boolean need_nl = false;
/* If we see more than SKIP_ZEROES bytes of zeroes, we just
/* If we see more than SKIP_ZEROES octets of zeroes, we just
print `...'. */
for (z = i; z < stop; z++)
for (z = addr_offset * opb; z < stop_offset * opb; z++)
if (data[z] != 0)
break;
if (! disassemble_zeroes
&& (info->insn_info_valid == 0
|| info->branch_delay_insns == 0)
&& (z - i >= SKIP_ZEROES
|| (z == stop && z - i < SKIP_ZEROES_AT_END)))
&& (z - addr_offset * opb >= SKIP_ZEROES
|| (z == stop_offset * opb &&
z - addr_offset * opb < SKIP_ZEROES_AT_END)))
{
printf ("\t...\n");
/* If there are more nonzero bytes to follow, we only skip
/* If there are more nonzero octets to follow, we only skip
zeroes in multiples of 4, to try to avoid running over
the start of an instruction which happens to start with
zero. */
if (z != stop)
z = i + ((z - i) &~ 3);
if (z != stop_offset * opb)
z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
bytes = z - i;
octets = z - addr_offset * opb;
}
else
{
@ -1320,13 +1325,13 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
done_dot = false;
if (with_line_numbers || with_source_code)
show_line (aux->abfd, section, i);
show_line (aux->abfd, section, addr_offset);
if (! prefix_addresses)
{
char *s;
sprintf_vma (buf, section->vma + i);
sprintf_vma (buf, section->vma + addr_offset);
for (s = buf + skip_addr_chars; *s == '0'; s++)
*s = ' ';
if (*s == '\0')
@ -1336,7 +1341,7 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
else
{
aux->require_sec = true;
objdump_print_address (section->vma + i, info);
objdump_print_address (section->vma + addr_offset, info);
aux->require_sec = false;
putchar (' ');
}
@ -1351,21 +1356,21 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
info->bytes_per_line = 0;
info->bytes_per_chunk = 0;
/* FIXME: This is wrong. It tests the number of bytes
/* FIXME: This is wrong. It tests the number of octets
in the last instruction, not the current one. */
if (*relppp < relppend
&& (**relppp)->address >= i
&& (**relppp)->address < i + bytes)
&& (**relppp)->address >= addr_offset
&& (**relppp)->address < addr_offset + octets / opb)
info->flags = INSN_HAS_RELOC;
else
info->flags = 0;
bytes = (*disassemble_fn) (section->vma + i, info);
octets = (*disassemble_fn) (section->vma + addr_offset, info);
info->fprintf_func = (fprintf_ftype) fprintf;
info->stream = stdout;
if (info->bytes_per_line != 0)
bytes_per_line = info->bytes_per_line;
if (bytes < 0)
octets_per_line = info->bytes_per_line;
if (octets < 0)
{
if (sfile.current != sfile.buffer)
printf ("%s\n", sfile.buffer);
@ -1377,18 +1382,18 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
{
bfd_vma j;
bytes = bytes_per_line;
if (i + bytes > stop)
bytes = stop - i;
octets = octets_per_line;
if (addr_offset + octets / opb > stop_offset)
octets = (stop_offset - addr_offset) * opb;
for (j = i; j < i + bytes; ++j)
for (j = addr_offset * opb; j < addr_offset * opb + octets; ++j)
{
if (isprint (data[j]))
buf[j - i] = data[j];
buf[j - addr_offset * opb] = data[j];
else
buf[j - i] = '.';
buf[j - addr_offset * opb] = '.';
}
buf[j - i] = '\0';
buf[j - addr_offset * opb] = '\0';
}
if (prefix_addresses
@ -1398,17 +1403,17 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
bfd_vma j;
/* If ! prefix_addresses and ! wide_output, we print
bytes_per_line bytes per line. */
pb = bytes;
if (pb > bytes_per_line && ! prefix_addresses && ! wide_output)
pb = bytes_per_line;
octets_per_line octets per line. */
pb = octets;
if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
pb = octets_per_line;
if (info->bytes_per_chunk)
bpc = info->bytes_per_chunk;
else
bpc = 1;
for (j = i; j < i + pb; j += bpc)
for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
{
int k;
if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
@ -1425,7 +1430,7 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
}
}
for (; pb < bytes_per_line; pb += bpc)
for (; pb < octets_per_line; pb += bpc)
{
int k;
@ -1453,25 +1458,25 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
? show_raw_insn > 0
: show_raw_insn >= 0)
{
while (pb < bytes)
while (pb < octets)
{
bfd_vma j;
char *s;
putchar ('\n');
j = i + pb;
j = addr_offset * opb + pb;
sprintf_vma (buf, section->vma + j);
sprintf_vma (buf, section->vma + j / opb);
for (s = buf + skip_addr_chars; *s == '0'; s++)
*s = ' ';
if (*s == '\0')
*--s = '0';
printf ("%s:\t", buf + skip_addr_chars);
pb += bytes_per_line;
if (pb > bytes)
pb = bytes;
for (; j < i + pb; j += bpc)
pb += octets_per_line;
if (pb > octets)
pb = octets;
for (; j < addr_offset * opb + pb; j += bpc)
{
int k;
@ -1501,8 +1506,8 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
&& (section->flags & SEC_RELOC) != 0)
{
while ((*relppp) < relppend
&& ((**relppp)->address >= (bfd_vma) i
&& (**relppp)->address < (bfd_vma) i + bytes))
&& ((**relppp)->address >= (bfd_vma) addr_offset
&& (**relppp)->address < (bfd_vma) addr_offset + octets / opb))
{
arelent *q;
@ -1553,7 +1558,7 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
if (need_nl)
printf ("\n");
i += bytes;
addr_offset += octets / opb;
}
}
@ -1563,11 +1568,12 @@ static void
disassemble_data (abfd)
bfd *abfd;
{
long i;
long addr_offset;
disassembler_ftype disassemble_fn;
struct disassemble_info disasm_info;
struct objdump_disasm_info aux;
asection *section;
int opb = bfd_octets_per_byte (abfd);
print_files = NULL;
prev_functionname = NULL;
@ -1589,6 +1595,7 @@ disassemble_data (abfd)
aux.require_sec = false;
disasm_info.print_address_func = objdump_print_address;
disasm_info.symbol_at_address_func = objdump_symbol_at_address;
disasm_info.octets_per_byte = opb;
if (machine != (char *) NULL)
{
@ -1646,7 +1653,7 @@ disassemble_data (abfd)
arelent **relbuf = NULL;
arelent **relpp = NULL;
arelent **relppend = NULL;
long stop;
long stop_offset;
asymbol *sym = NULL;
long place = 0;
@ -1709,37 +1716,37 @@ disassemble_data (abfd)
disasm_info.buffer_length = datasize;
if (start_address == (bfd_vma) -1
|| start_address < disasm_info.buffer_vma)
i = 0;
addr_offset = 0;
else
i = start_address - disasm_info.buffer_vma;
addr_offset = start_address - disasm_info.buffer_vma;
if (stop_address == (bfd_vma) -1)
stop = datasize;
stop_offset = datasize / opb;
else
{
if (stop_address < disasm_info.buffer_vma)
stop = 0;
stop_offset = 0;
else
stop = stop_address - disasm_info.buffer_vma;
if (stop > disasm_info.buffer_length)
stop = disasm_info.buffer_length;
stop_offset = stop_address - disasm_info.buffer_vma;
if (stop_offset > disasm_info.buffer_length / opb)
stop_offset = disasm_info.buffer_length / opb;
}
sym = find_symbol_for_address (abfd, section, section->vma + i,
sym = find_symbol_for_address (abfd, section, section->vma + addr_offset,
true, &place);
while (i < stop)
while (addr_offset < stop_offset)
{
asymbol *nextsym;
long nextstop;
long nextstop_offset;
boolean insns;
if (sym != NULL && bfd_asymbol_value (sym) <= section->vma + i)
if (sym != NULL && bfd_asymbol_value (sym) <= section->vma + addr_offset)
{
int x;
for (x = place;
(x < sorted_symcount
&& bfd_asymbol_value (sorted_syms[x]) <= section->vma + i);
&& bfd_asymbol_value (sorted_syms[x]) <= section->vma + addr_offset);
++x)
continue;
disasm_info.symbols = & sorted_syms[place];
@ -1752,13 +1759,13 @@ disassemble_data (abfd)
{
printf ("\n");
objdump_print_addr_with_sym (abfd, section, sym,
section->vma + i,
section->vma + addr_offset,
&disasm_info,
false);
printf (":\n");
}
if (sym != NULL && bfd_asymbol_value (sym) > section->vma + i)
if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
nextsym = sym;
else if (sym == NULL)
nextsym = NULL;
@ -1779,19 +1786,19 @@ disassemble_data (abfd)
nextsym = sorted_syms[place];
}
if (sym != NULL && bfd_asymbol_value (sym) > section->vma + i)
if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
{
nextstop = bfd_asymbol_value (sym) - section->vma;
if (nextstop > stop)
nextstop = stop;
nextstop_offset = bfd_asymbol_value (sym) - section->vma;
if (nextstop_offset > stop_offset)
nextstop_offset = stop_offset;
}
else if (nextsym == NULL)
nextstop = stop;
nextstop_offset = stop_offset;
else
{
nextstop = bfd_asymbol_value (nextsym) - section->vma;
if (nextstop > stop)
nextstop = stop;
nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
if (nextstop_offset > stop_offset)
nextstop_offset = stop_offset;
}
/* If a symbol is explicitly marked as being an object
@ -1799,7 +1806,7 @@ disassemble_data (abfd)
disassembling them. */
if (disassemble_all
|| sym == NULL
|| bfd_asymbol_value (sym) > section->vma + i
|| bfd_asymbol_value (sym) > section->vma + addr_offset
|| ((sym->flags & BSF_OBJECT) == 0
&& (strstr (bfd_asymbol_name (sym), "gnu_compiled")
== NULL)
@ -1810,10 +1817,10 @@ disassemble_data (abfd)
else
insns = false;
disassemble_bytes (&disasm_info, disassemble_fn, insns, data, i,
nextstop, &relpp, relppend);
disassemble_bytes (&disasm_info, disassemble_fn, insns, data,
addr_offset, nextstop_offset, &relpp, relppend);
i = nextstop;
addr_offset = nextstop_offset;
sym = nextsym;
}
@ -2249,8 +2256,9 @@ dump_data (abfd)
asection *section;
bfd_byte *data = 0;
bfd_size_type datasize = 0;
bfd_size_type i;
bfd_size_type start, stop;
bfd_size_type addr_offset;
bfd_size_type start_offset, stop_offset;
int opb = bfd_octets_per_byte (abfd);
for (section = abfd->sections; section != NULL; section =
section->next)
@ -2274,28 +2282,31 @@ dump_data (abfd)
if (start_address == (bfd_vma) -1
|| start_address < section->vma)
start = 0;
start_offset = 0;
else
start = start_address - section->vma;
start_offset = start_address - section->vma;
if (stop_address == (bfd_vma) -1)
stop = bfd_section_size (abfd, section);
stop_offset = bfd_section_size (abfd, section) / opb;
else
{
if (stop_address < section->vma)
stop = 0;
stop_offset = 0;
else
stop = stop_address - section->vma;
if (stop > bfd_section_size (abfd, section))
stop = bfd_section_size (abfd, section);
stop_offset = stop_address - section->vma;
if (stop_offset > bfd_section_size (abfd, section) / opb)
stop_offset = bfd_section_size (abfd, section) / opb;
}
for (i = start; i < stop; i += onaline)
for (addr_offset = start_offset;
addr_offset < stop_offset; addr_offset += onaline)
{
bfd_size_type j;
printf (" %04lx ", (unsigned long int) (i + section->vma));
for (j = i; j < i + onaline; j++)
printf (" %04lx ", (unsigned long int)
(addr_offset + section->vma));
for (j = addr_offset * opb;
j < addr_offset * opb + onaline; j++)
{
if (j < stop)
if (j < stop_offset * opb)
printf ("%02x", (unsigned) (data[j]));
else
printf (" ");
@ -2304,9 +2315,9 @@ dump_data (abfd)
}
printf (" ");
for (j = i; j < i + onaline; j++)
for (j = addr_offset; j < addr_offset * opb + onaline; j++)
{
if (j >= stop)
if (j >= stop_offset * opb)
printf (" ");
else
printf ("%c", isprint (data[j]) ? data[j] : '.');

5
include/ChangeLog
View File

@ -1,3 +1,8 @@
2000-02-03 Timothy Wall <twall@redhat.com>
* dis-asm.h (struct disassemble_info): Added octets_per_byte
field and initialize it to one (1).
2000-01-27 Nick Clifton <nickc@redhat.com>
* dis-asm.h: Add prototype for disassembler_usage().

6
include/dis-asm.h
View File

@ -121,6 +121,11 @@ typedef struct disassemble_info {
int bytes_per_chunk;
enum bfd_endian display_endian;
/* Number of octets per incremented target address
Normally one, but some DSPs have byte sizes of 16 or 32 bits
*/
int octets_per_byte;
/* Results from instruction decoders. Not all decoders yet support
this information. This info is set each time an instruction is
decoded, and is only valid for the last such instruction.
@ -229,6 +234,7 @@ extern int generic_symbol_at_address
(INFO).arch = bfd_arch_unknown, \
(INFO).mach = 0, \
(INFO).endian = BFD_ENDIAN_UNKNOWN, \
(INFO).octets_per_byte = 1, \
INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
/* Call this macro to initialize only the internal variables for the

6
opcodes/ChangeLog
View File

@ -1,3 +1,9 @@
2000-02-03 Timothy Wall <twall@redhat.com>
* dis-buf.c (buffer_read_memory): Use octets_per_byte field
to adjust target address bounds checking and calculate the
appropriate octet offset into data.
2000-01-27 Nick Clifton <nickc@redhat.com>
* arm-dis.c: (parse_disassembler_option): Rename to

10
opcodes/dis-buf.c
View File

@ -29,11 +29,17 @@ buffer_read_memory (memaddr, myaddr, length, info)
int length;
struct disassemble_info *info;
{
int opb = info->octets_per_byte;
int end_addr_offset = length / opb;
int max_addr_offset = info->buffer_length / opb;
int octets = (memaddr - info->buffer_vma) * opb;
if (memaddr < info->buffer_vma
|| memaddr - info->buffer_vma + length > info->buffer_length)
|| memaddr - info->buffer_vma + end_addr_offset > max_addr_offset)
/* Out of bounds. Use EIO because GDB uses it. */
return EIO;
memcpy (myaddr, info->buffer + (memaddr - info->buffer_vma), length);
memcpy (myaddr, info->buffer + octets, length);
return 0;
}