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Added 386 support!

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This commit is contained in:
Steve Chamberlain 1991-05-25 01:51:10 +00:00
parent ebec46845c
commit 20fdc627fa
3 changed files with 140 additions and 114 deletions
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6
bfd/Makefile.in
View File

@ -38,14 +38,14 @@ BFD_LIBS = libbfd.o opncls.o bfd.o archive.o targets.o cache.o \
archures.o
BFD_BACKENDS = oasys.o ieee.o srec.o aout64.o aout32.o sunos.o icoff.o demo64.o \
m68kcoff.o m88k-bcs.o coffswap.o ecoff.o newsos3.o # trad-core.o bout.o
m68kcoff.o i386coff.o m88k-bcs.o coffswap.o ecoff.o newsos3.o # trad-core.o bout.o
BFD_H=$(INCDIR)/bfd.h
SYSDEP_H=$(INCDIR)/sysdep.h
# C source files that correspond to .o's.
CFILES = libbfd.c opncls.c bfd.c archive.c targets.c cache.c archures.c \
aout64.c aout32.c sunos.c demo64.c icoff.c srec.c oasys.c ieee.c m68kcoff.c \
i386coff.c aout64.c aout32.c sunos.c demo64.c icoff.c srec.c oasys.c ieee.c m68kcoff.c \
m88k-bcs.c coffswap.c ecoff.c trad-core.c newsos3.c #bout.c
STAGESTUFF = $(TARGETLIB) $(OFILES)
@ -171,7 +171,7 @@ Makefile: $(srcdir)/Makefile.in $(srcdir)/configure
./configure +norecurse \
+destdir=$(destdir) \
`if [ "$(srcdir)" != "." ] ; then echo +f; fi` \
$(host) +target=$(target);) ; make dep
$(host) +target=$(target);)
dep: $(CFILES)
mkdep $(CFLAGS) $?

234
bfd/coffcode.h
View File

@ -417,6 +417,9 @@ DEFUN(coff_new_section_hook,(abfd_ignore, section_ignore),
#endif
#if M68
section_ignore->alignment_power = 3;
#endif
#if I386
section_ignore->alignment_power = 2;
#endif
return true;
}
@ -545,10 +548,16 @@ DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a),
/* Determine the machine architecture and type. */
abfd->obj_machine = 0;
switch (internal_f->f_magic) {
#ifdef I386MAGIC
case I386MAGIC:
abfd->obj_arch = bfd_arch_i386;
abfd->obj_machine = 0;
break;
#endif
#ifdef MIPS
case MIPS_MAGIC_1:
case MIPS_MAGIC_2:
case MIPS_MAGIC_3:
case MIPS_MAGIC_1:
case MIPS_MAGIC_2:
case MIPS_MAGIC_3:
abfd->obj_arch = bfd_arch_mips;
abfd->obj_machine = 0;
break;
@ -671,10 +680,10 @@ DEFUN(coff_object_p,(abfd),
quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
and Intel 960 readwrite headers (I960WRMAGIC) is that the
optional header is of a different size.
But the mips keeps extra stuff in it's opthdr, so dont check
when doing that
*/
But the mips keeps extra stuff in it's opthdr, so dont check
when doing that
*/
#ifndef MIPS
if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr)
@ -695,15 +704,15 @@ static coff_symbol_type *
DEFUN(coff_symbol_from,(abfd, symbol),
bfd *abfd AND
asymbol *symbol)
{
if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour_enum)
return (coff_symbol_type *)NULL;
if (symbol->the_bfd->tdata == (PTR)NULL)
return (coff_symbol_type *)NULL;
return (coff_symbol_type *) symbol;
}
{
if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour_enum)
return (coff_symbol_type *)NULL;
if (symbol->the_bfd->tdata == (PTR)NULL)
return (coff_symbol_type *)NULL;
return (coff_symbol_type *) symbol;
}
@ -714,59 +723,59 @@ DEFUN(coff_symbol_from,(abfd, symbol),
static void
DEFUN(coff_count_linenumbers,(abfd),
bfd *abfd)
{
{
unsigned int limit = bfd_get_symcount(abfd);
unsigned int i;
asymbol **p;
{
{
asection *s = abfd->sections->output_section;
while (s) {
BFD_ASSERT(s->lineno_count == 0);
s = s->next;
BFD_ASSERT(s->lineno_count == 0);
s = s->next;
}
}
}
for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
asymbol *q_maybe = *p;
if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour_enum) {
coff_symbol_type *q = coffsymbol(q_maybe);
if (q->lineno) {
/*
This symbol has a linenumber, increment the owning
section's linenumber count
asymbol *q_maybe = *p;
if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour_enum) {
coff_symbol_type *q = coffsymbol(q_maybe);
if (q->lineno) {
/*
This symbol has a linenumber, increment the owning
section's linenumber count
*/
alent *l = q->lineno;
q->symbol.section->output_section->lineno_count++;
l++;
while (l->line_number) {
q->symbol.section->output_section->lineno_count++;
l++;
}
}
alent *l = q->lineno;
q->symbol.section->output_section->lineno_count++;
l++;
while (l->line_number) {
q->symbol.section->output_section->lineno_count++;
l++;
}
}
}
}
}
}
/*
This function returns true if the supplied SYMENT has an AUXENT with
a tagndx field which should be relocated.
This function returns true if the supplied SYMENT has an AUXENT with
a tagndx field which should be relocated.
The coff book says that all auxents have this and should be moved,
but all the actual implementations I've looked at do this ..
(sac@cygnus.com)
The coff book says that all auxents have this and should be moved,
but all the actual implementations I've looked at do this ..
(sac@cygnus.com)
*/
static boolean
DEFUN(uses_x_sym_x_tagndx_p,(abfd, native),
bfd *abfd AND
struct internal_syment *native)
{
{
if (BTYPE(native->n_type) == T_STRUCT) return true;
if (BTYPE(native->n_type) == T_UNION) return true;
if (BTYPE(native->n_type) == T_ENUM) return true;
return false;
}
}
/*
@ -808,73 +817,73 @@ applied so we can dig it out through a pointer. */
static void
DEFUN(coff_mangle_symbols,(bfd_ptr),
bfd *bfd_ptr)
{
unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
struct internal_syment *last_tagndx = (struct internal_syment *)NULL;
struct internal_syment *last_file = (struct internal_syment *)NULL;
struct internal_syment *last_fcn = (struct internal_syment *)NULL;
struct internal_syment *block_stack[50];
struct internal_syment **last_block = &block_stack[0];
boolean first_time = true;
unsigned int symbol_index;
unsigned int native_index = 0;
for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) {
coff_symbol_type *coff_symbol_ptr =
coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]);
if (coff_symbol_ptr == (coff_symbol_type *)NULL) {
/*
This symbol has no coff information in it, it will take up
only one slot in the output symbol table
*/
native_index++;
}
else {
struct internal_syment *syment = coff_symbol_ptr->native;
if (syment == (struct internal_syment *)NULL) {
{
unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
struct internal_syment *last_tagndx = (struct internal_syment *)NULL;
struct internal_syment *last_file = (struct internal_syment *)NULL;
struct internal_syment *last_fcn = (struct internal_syment *)NULL;
struct internal_syment *block_stack[50];
struct internal_syment **last_block = &block_stack[0];
boolean first_time = true;
unsigned int symbol_index;
unsigned int native_index = 0;
for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) {
coff_symbol_type *coff_symbol_ptr =
coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]);
if (coff_symbol_ptr == (coff_symbol_type *)NULL) {
/*
This symbol has no coff information in it, it will take up
only one slot in the output symbol table
*/
native_index++;
}
else {
/* Normalize the symbol flags */
if (coff_symbol_ptr->symbol.flags & BSF_FORT_COMM) {
/* a common symbol is undefined with a value */
syment->n_scnum = N_UNDEF;
syment->n_value = coff_symbol_ptr->symbol.value;
struct internal_syment *syment = coff_symbol_ptr->native;
if (syment == (struct internal_syment *)NULL) {
native_index++;
}
else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) {
syment->n_value = coff_symbol_ptr->symbol.value;
}
else if (coff_symbol_ptr->symbol.flags & BSF_UNDEFINED) {
syment->n_scnum = N_UNDEF;
syment->n_value = 0;
}
else if (coff_symbol_ptr->symbol.flags & BSF_ABSOLUTE) {
syment->n_scnum = N_ABS;
syment->n_value = coff_symbol_ptr->symbol.value;
}
else {
syment->n_scnum =
coff_symbol_ptr->symbol.section->output_section->index+1;
syment->n_value =
coff_symbol_ptr->symbol.value +
coff_symbol_ptr->symbol.section->output_offset +
coff_symbol_ptr->symbol.section->output_section->vma;
}
/* If this symbol ties up something then do it */
if (syment->n_sclass == C_FILE && last_file != (struct internal_syment *)NULL)
{
last_file->n_value = native_index;
/* Normalize the symbol flags */
if (coff_symbol_ptr->symbol.flags & BSF_FORT_COMM) {
/* a common symbol is undefined with a value */
syment->n_scnum = N_UNDEF;
syment->n_value = coff_symbol_ptr->symbol.value;
}
else if ((syment->n_sclass == C_EXT
|| syment->n_sclass == C_STAT
else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) {
syment->n_value = coff_symbol_ptr->symbol.value;
}
else if (coff_symbol_ptr->symbol.flags & BSF_UNDEFINED) {
syment->n_scnum = N_UNDEF;
syment->n_value = 0;
}
else if (coff_symbol_ptr->symbol.flags & BSF_ABSOLUTE) {
syment->n_scnum = N_ABS;
syment->n_value = coff_symbol_ptr->symbol.value;
}
else {
syment->n_scnum =
coff_symbol_ptr->symbol.section->output_section->index+1;
syment->n_value =
coff_symbol_ptr->symbol.value +
coff_symbol_ptr->symbol.section->output_offset +
coff_symbol_ptr->symbol.section->output_section->vma;
}
/* If this symbol ties up something then do it */
if (syment->n_sclass == C_FILE && last_file != (struct internal_syment *)NULL)
{
last_file->n_value = native_index;
}
else if ((syment->n_sclass == C_EXT
|| syment->n_sclass == C_STAT
#ifdef C_LEAFEXT
|| syment->n_sclass == C_LEAFEXT
|| syment->n_sclass == C_LEAFSTAT
|| syment->n_sclass == C_LEAFEXT
|| syment->n_sclass == C_LEAFSTAT
#endif
)
&& last_fcn != (struct internal_syment *)NULL)
@ -1343,6 +1352,11 @@ unsigned *magicp,
return true;
break;
#endif
#ifdef I386MAGIC
case bfd_arch_i386:
*magicp = I386MAGIC;
return true;
#endif
#ifdef MC68MAGIC
case bfd_arch_m68k:
*magicp = MC68MAGIC;
@ -2398,7 +2412,10 @@ DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols),
cache_ptr->address -= asect->vma;
cache_ptr->section = (asection *) NULL;
#if I386
cache_ptr->howto = howto_table + dst.r_type;
#endif
#if I960
cache_ptr->howto = howto_table + dst.r_type;
#endif
@ -2510,10 +2527,11 @@ DEFUN(coff_find_nearest_line,(abfd,
file didn't have a C_FILE. xoxorich.
*/
/*
#ifdef WEREBEINGPEDANTIC
return false;
#endif
*/
for (i = 0; i < cof->raw_syment_count; i++) {
if (p->n_sclass == C_FILE) {
/* File name is embeded in auxent */

14
bfd/targets.c
View File

@ -39,6 +39,7 @@ extern bfd_target ieee_vec;
extern bfd_target oasys_vec;
extern bfd_target m88k_bcs_vec;
extern bfd_target m68kcoff_vec;
extern bfd_target i386coff_vec;
#ifdef GNU960
#define ICOFF_LITTLE_VEC icoff_little_vec
@ -61,6 +62,7 @@ extern bfd_target m68kcoff_vec;
#define M88K_BCS_VEC m88k_bcs_vec
#define SREC_VEC srec_vec
#define M68KCOFF_VEC m68kcoff_vec
#define I386COFF_VEC i386coff_vec
#endif
bfd_target *target_vector[] = {
@ -68,6 +70,10 @@ bfd_target *target_vector[] = {
&DEFAULT_VECTOR,
#endif /* DEFAULT_VECTOR */
#ifdef I386COFF_VEC
&I386COFF_VEC,
#endif /* I386COFF_VEC */
#ifdef ECOFF_LITTLE_VEC
&ECOFF_LITTLE_VEC,
#endif
@ -75,9 +81,6 @@ bfd_target *target_vector[] = {
#ifdef ECOFF_BIG_VEC
&ECOFF_BIG_VEC,
#endif
#ifdef M68KCOFF_VEC
&M68KCOFF_VEC,
#endif
#ifdef IEEE_VEC
&IEEE_VEC,
#endif /* IEEE_VEC */
@ -121,5 +124,10 @@ bfd_target *target_vector[] = {
&B_OUT_VEC_BIG_HOST,
#endif /* B_OUT_VEC_BIG_HOST */
#ifdef M68KCOFF_VEC
&M68KCOFF_VEC,
#endif /* M68KCOFF_VEC */
NULL, /* end of list marker */
};