mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-21 01:12:32 +08:00
the famous 'disasm' bug fix.
This commit is contained in:
Steve Chamberlain
parent
9d5ee7e282
commit
8daa713142
316
bfd/coff-code.h
316
bfd/coff-code.h
@ -125,7 +125,7 @@ swap_name(abfd, ptr)
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
static void
|
||||
bfd_coff_swap_sym(abfd, se)
|
||||
bfd *abfd;
|
||||
SYMENT *se;
|
||||
@ -138,7 +138,7 @@ bfd_coff_swap_sym(abfd, se)
|
||||
bfd_h_put_x(abfd, se->n_numaux, &se->n_numaux);
|
||||
}
|
||||
|
||||
void
|
||||
static void
|
||||
bfd_coff_swap_aux(abfd, au, type, class)
|
||||
bfd *abfd;
|
||||
AUXENT *au;
|
||||
@ -164,7 +164,7 @@ bfd_coff_swap_aux(abfd, au, type, class)
|
||||
sp(au->x_sym.x_tagndx);
|
||||
sp(au->x_sym.x_tvndx);
|
||||
|
||||
if (ISARY(type) || class == C_BLOCK) {
|
||||
if (ISARY(type)) {
|
||||
sp(au->x_sym.x_fcnary.x_ary.x_dimen[0]);
|
||||
sp(au->x_sym.x_fcnary.x_ary.x_dimen[1]);
|
||||
sp(au->x_sym.x_fcnary.x_ary.x_dimen[2]);
|
||||
@ -184,7 +184,7 @@ bfd_coff_swap_aux(abfd, au, type, class)
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
static void
|
||||
bfd_coff_swap_lineno(abfd, lineno)
|
||||
bfd *abfd;
|
||||
LINENO *lineno;
|
||||
@ -298,125 +298,123 @@ coff_real_object_p(abfd, nscns, opthdr)
|
||||
unsigned nscns,
|
||||
opthdr;
|
||||
{
|
||||
struct icofdata *tdata;
|
||||
char *file_info; /* buffer for all the headers */
|
||||
size_t readsize; /* length of file_info */
|
||||
struct filehdr *filehdr; /* points into file_info */
|
||||
struct scnhdr *sections; /* points into file_info */
|
||||
/*
|
||||
OK, now we know the format, read in the filehdr, soi-disant "optional
|
||||
header", and all the sections.
|
||||
*/
|
||||
readsize = sizeof(struct filehdr)
|
||||
+ opthdr
|
||||
+ (nscns * sizeof(struct scnhdr));
|
||||
struct icofdata *tdata;
|
||||
char *file_info; /* buffer for all the headers */
|
||||
size_t readsize; /* length of file_info */
|
||||
struct filehdr *filehdr; /* points into file_info */
|
||||
struct scnhdr *sections; /* points into file_info */
|
||||
/*
|
||||
OK, now we know the format, read in the filehdr, soi-disant "optional
|
||||
header", and all the sections.
|
||||
*/
|
||||
readsize = sizeof(struct filehdr)
|
||||
+ opthdr
|
||||
+ (nscns * sizeof(struct scnhdr));
|
||||
|
||||
file_info = malloc(readsize);
|
||||
if (file_info == NULL) {
|
||||
bfd_error = no_memory;
|
||||
return 0;
|
||||
file_info = malloc(readsize);
|
||||
if (file_info == NULL) {
|
||||
bfd_error = no_memory;
|
||||
return 0;
|
||||
}
|
||||
if (bfd_seek(abfd, 0L, SEEK_SET) < 0)
|
||||
return 0;
|
||||
if (bfd_read((void *) file_info, 1, readsize, abfd) != readsize)
|
||||
return 0;
|
||||
filehdr = (struct filehdr *) file_info;
|
||||
sections = (struct scnhdr *) (file_info + sizeof(struct filehdr) + opthdr);
|
||||
|
||||
|
||||
swap_filehdr(abfd, filehdr);
|
||||
|
||||
/* Now copy data as required; construct all asections etc */
|
||||
tdata = (struct icofdata *) malloc(sizeof(struct icofdata) +
|
||||
sizeof(AOUTHDR));
|
||||
if (tdata == NULL) {
|
||||
bfd_error = no_memory;
|
||||
return 0;
|
||||
}
|
||||
tdata->symbol_index_slew = 0;
|
||||
tdata->relocbase =0;
|
||||
tdata->raw_syment_count = 0;
|
||||
tdata->raw_linenos = 0;
|
||||
tdata->raw_syments = 0;
|
||||
tdata->sym_filepos =0;
|
||||
tdata->flags = filehdr->f_flags;
|
||||
if (nscns != 0) {
|
||||
unsigned int i;
|
||||
for (i = 0; i < nscns; i++) {
|
||||
swap_scnhdr(abfd, sections + i);
|
||||
make_a_section_from_file(abfd, sections + i);
|
||||
}
|
||||
if (bfd_seek(abfd, 0L, SEEK_SET) < 0)
|
||||
return 0;
|
||||
if (bfd_read((void *) file_info, 1, readsize, abfd) != readsize)
|
||||
return 0;
|
||||
filehdr = (struct filehdr *) file_info;
|
||||
sections = (struct scnhdr *) (file_info + sizeof(struct filehdr) + opthdr);
|
||||
|
||||
|
||||
swap_filehdr(abfd, filehdr);
|
||||
|
||||
/* Now copy data as required; construct all asections etc */
|
||||
tdata = (struct icofdata *) malloc(sizeof(struct icofdata) +
|
||||
sizeof(AOUTHDR));
|
||||
if (tdata == NULL) {
|
||||
bfd_error = no_memory;
|
||||
return 0;
|
||||
}
|
||||
tdata->symbol_index_slew = 0;
|
||||
tdata->relocbase =0;
|
||||
tdata->raw_syment_count = 0;
|
||||
tdata->raw_linenos = 0;
|
||||
tdata->raw_syments = 0;
|
||||
tdata->sym_filepos =0;
|
||||
tdata->flags = filehdr->f_flags;
|
||||
if (nscns != 0) {
|
||||
unsigned int i;
|
||||
for (i = 0; i < nscns; i++) {
|
||||
swap_scnhdr(abfd, sections + i);
|
||||
make_a_section_from_file(abfd, sections + i);
|
||||
}
|
||||
}
|
||||
/* Determine the machine architecture and type. */
|
||||
abfd->obj_machine = 0;
|
||||
switch (filehdr->f_magic) {
|
||||
}
|
||||
/* Determine the machine architecture and type. */
|
||||
abfd->obj_machine = 0;
|
||||
switch (filehdr->f_magic) {
|
||||
#ifdef MC68MAGIC
|
||||
case MC68MAGIC:
|
||||
case MC68DMAGIC:
|
||||
abfd->obj_arch = bfd_arch_m68k;
|
||||
abfd->obj_machine = 68020;
|
||||
break;
|
||||
case MC68MAGIC:
|
||||
case MC68DMAGIC:
|
||||
abfd->obj_arch = bfd_arch_m68k;
|
||||
abfd->obj_machine = 68020;
|
||||
break;
|
||||
#endif
|
||||
#ifdef I960ROMAGIC
|
||||
case I960ROMAGIC:
|
||||
case I960RWMAGIC:
|
||||
abfd->obj_arch = bfd_arch_i960;
|
||||
switch (F_I960TYPE & filehdr->f_flags) {
|
||||
case F_I960CORE:
|
||||
abfd->obj_machine = bfd_mach_i960_core;
|
||||
break;
|
||||
case F_I960KB:
|
||||
abfd->obj_machine = bfd_mach_i960_kb_sb;
|
||||
break;
|
||||
case F_I960MC:
|
||||
abfd->obj_machine = bfd_mach_i960_mc;
|
||||
break;
|
||||
case F_I960XA:
|
||||
abfd->obj_machine = bfd_mach_i960_xa;
|
||||
break;
|
||||
case F_I960CA:
|
||||
abfd->obj_machine = bfd_mach_i960_ca;
|
||||
break;
|
||||
case F_I960KA:
|
||||
abfd->obj_machine = bfd_mach_i960_ka_sa;
|
||||
break;
|
||||
/*
|
||||
Doomed to fail but sneak out a bit of info in the process.
|
||||
*/
|
||||
default:
|
||||
abfd->obj_machine = filehdr->f_flags & F_I960TYPE;
|
||||
}
|
||||
case I960ROMAGIC:
|
||||
case I960RWMAGIC:
|
||||
abfd->obj_arch = bfd_arch_i960;
|
||||
switch (F_I960TYPE & filehdr->f_flags)
|
||||
{
|
||||
default:
|
||||
case F_I960CORE:
|
||||
abfd->obj_machine = bfd_mach_i960_core;
|
||||
break;
|
||||
case F_I960KB:
|
||||
abfd->obj_machine = bfd_mach_i960_kb_sb;
|
||||
break;
|
||||
case F_I960MC:
|
||||
abfd->obj_machine = bfd_mach_i960_mc;
|
||||
break;
|
||||
case F_I960XA:
|
||||
abfd->obj_machine = bfd_mach_i960_xa;
|
||||
break;
|
||||
case F_I960CA:
|
||||
abfd->obj_machine = bfd_mach_i960_ca;
|
||||
break;
|
||||
case F_I960KA:
|
||||
abfd->obj_machine = bfd_mach_i960_ka_sa;
|
||||
break;
|
||||
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
|
||||
default: /* Unreadable input file type */
|
||||
abfd->obj_arch = bfd_arch_obscure;
|
||||
break;
|
||||
}
|
||||
default: /* Unreadable input file type */
|
||||
abfd->obj_arch = bfd_arch_obscure;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!(filehdr->f_flags & F_RELFLG))
|
||||
abfd->flags |= HAS_RELOC;
|
||||
if ((filehdr->f_flags & F_EXEC))
|
||||
abfd->flags |= EXEC_P;
|
||||
if (!(filehdr->f_flags & F_LNNO))
|
||||
abfd->flags |= HAS_LINENO;
|
||||
if (!(filehdr->f_flags & F_LSYMS))
|
||||
abfd->flags |= HAS_LOCALS;
|
||||
if (!(filehdr->f_flags & F_RELFLG))
|
||||
abfd->flags |= HAS_RELOC;
|
||||
if ((filehdr->f_flags & F_EXEC))
|
||||
abfd->flags |= EXEC_P;
|
||||
if (!(filehdr->f_flags & F_LNNO))
|
||||
abfd->flags |= HAS_LINENO;
|
||||
if (!(filehdr->f_flags & F_LSYMS))
|
||||
abfd->flags |= HAS_LOCALS;
|
||||
|
||||
abfd->tdata = (void *) tdata;
|
||||
bfd_get_symcount(abfd) = filehdr->f_nsyms;
|
||||
if (filehdr->f_nsyms)
|
||||
abfd->flags |= HAS_SYMS;
|
||||
abfd->tdata = (void *) tdata;
|
||||
bfd_get_symcount(abfd) = filehdr->f_nsyms;
|
||||
if (filehdr->f_nsyms)
|
||||
abfd->flags |= HAS_SYMS;
|
||||
|
||||
tdata->sym_filepos = filehdr->f_symptr;
|
||||
tdata->hdr = (struct aouthdr *) (file_info + sizeof(struct filehdr));
|
||||
tdata->sym_filepos = filehdr->f_symptr;
|
||||
tdata->hdr = (struct aouthdr *) (file_info + sizeof(struct filehdr));
|
||||
|
||||
swap_aouthdr(abfd, tdata->hdr);
|
||||
swap_aouthdr(abfd, tdata->hdr);
|
||||
|
||||
tdata->symbols = (coff_symbol_type *) NULL;
|
||||
bfd_get_start_address(abfd) = opthdr ? exec_hdr(abfd)->entry : 0;
|
||||
tdata->symbols = (coff_symbol_type *) NULL;
|
||||
bfd_get_start_address(abfd) = opthdr ? exec_hdr(abfd)->entry : 0;
|
||||
|
||||
return abfd->xvec;
|
||||
return abfd->xvec;
|
||||
}
|
||||
|
||||
|
||||
@ -478,11 +476,10 @@ coff_mkobject(abfd)
|
||||
{
|
||||
char *rawptr;
|
||||
|
||||
|
||||
bfd_error = system_call_error;
|
||||
|
||||
/* Use an intermediate variable for clarity */
|
||||
rawptr = malloc(sizeof(struct icofdata) + sizeof(AOUTHDR));
|
||||
rawptr = zalloc(sizeof(struct icofdata) + sizeof(AOUTHDR));
|
||||
if (rawptr == NULL) {
|
||||
bfd_error = no_memory;
|
||||
return false;
|
||||
@ -532,35 +529,6 @@ coff_count_linenumbers(abfd)
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
This function returns true if the supplied SYMENT has an auxent with
|
||||
and endndx field which should be relocated as the symbol moves
|
||||
within the file.
|
||||
*/
|
||||
static
|
||||
boolean
|
||||
uses_x_sym_x_fcnary_x_fcn_x_endndx_p(native)
|
||||
SYMENT *native;
|
||||
{
|
||||
if (ISFCN(native->n_type))
|
||||
return true;
|
||||
if (native->n_sclass == C_BLOCK)
|
||||
return true;
|
||||
if (native->n_sclass == C_STRTAG)
|
||||
return true;
|
||||
if (native->n_sclass == C_ENTAG)
|
||||
return true;
|
||||
if (native->n_sclass == C_UNTAG)
|
||||
return true;
|
||||
if (native->n_sclass == C_MOS)
|
||||
return true;
|
||||
if(native->n_sclass == C_EOS)
|
||||
return true;
|
||||
if(native->n_sclass == C_MOE)
|
||||
return true;
|
||||
return false;
|
||||
|
||||
}
|
||||
/*
|
||||
This function returns true if the supplied SYMENT has an AUXENT with
|
||||
a tagndx field which should be relocated.
|
||||
@ -581,62 +549,8 @@ SYMENT *native;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
Return the canonical symbol we work out how far it has moved since it
|
||||
started life. This is done by finding the base of the raw syments as
|
||||
read in when a file was slurped, which discovers the original offset
|
||||
into the file. Then we return the value which we've saved in the
|
||||
n_offset field of that name - and voila.
|
||||
*/
|
||||
static
|
||||
unsigned int
|
||||
new_idx(symbol, original_offset)
|
||||
coff_symbol_type *symbol;
|
||||
unsigned int original_offset;
|
||||
{
|
||||
struct icofdata *coff = obj_icof(symbol->symbol.the_bfd);
|
||||
|
||||
/* Point to the native we used to point to */
|
||||
SYMENT *native = coff->raw_syments + original_offset;
|
||||
|
||||
/* We keep the native's new index in it's string space */
|
||||
return native->n_offset;
|
||||
}
|
||||
|
||||
|
||||
/* Function to run through the raw parts of a coff symbol table and
|
||||
loads each SYMENT's n_offset with its output index. If a symbol has
|
||||
been deleted or moved to the end, still mark the offset of the one
|
||||
following it. This makes refs to symbols which have moved point to
|
||||
the symbol which now sits in the spot vacated.
|
||||
*/
|
||||
|
||||
static
|
||||
void
|
||||
preload_n_offset(abfd)
|
||||
bfd *abfd;
|
||||
{
|
||||
unsigned int limit = bfd_get_symcount(abfd);
|
||||
asymbol **p = abfd->outsymbols;
|
||||
bfd *thebfd = (bfd *)NULL;
|
||||
unsigned int native_index;
|
||||
|
||||
native_index = 0;
|
||||
|
||||
/* First phase, mark each SYMENT with final position */
|
||||
while (limit --) {
|
||||
coff_symbol_type *q = coff_symbol_from(abfd, *p);
|
||||
if (q != (coff_symbol_type *)NULL && q->native) {
|
||||
q->native->n_offset = native_index;
|
||||
native_index += 1 + q->native->n_numaux;
|
||||
}
|
||||
else {
|
||||
native_index++;
|
||||
}
|
||||
p++;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
@ -743,8 +657,11 @@ bfd *bfd_ptr;
|
||||
}
|
||||
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_LEAFSTAT
|
||||
#endif
|
||||
)
|
||||
&& last_fcn != (SYMENT *)NULL)
|
||||
{
|
||||
AUXENT *auxent = (AUXENT *)(last_fcn+1);
|
||||
@ -783,6 +700,7 @@ bfd *bfd_ptr;
|
||||
last_file->n_value = native_index;
|
||||
first_time = false;
|
||||
}
|
||||
#ifdef C_LEAFPROC
|
||||
if (syment->n_sclass == C_LEAFPROC && syment->n_numaux == 2) {
|
||||
AUXENT *auxent = (AUXENT *)(syment+2);
|
||||
/* This is the definition of a leaf proc, we'll relocate the
|
||||
@ -792,6 +710,7 @@ bfd *bfd_ptr;
|
||||
coff_symbol_ptr->symbol.section->output_offset +
|
||||
coff_symbol_ptr->symbol.section->output_section->vma ;
|
||||
}
|
||||
#endif
|
||||
/* If this symbol needs to be tied up then remember some facts */
|
||||
if (syment->n_sclass == C_FILE)
|
||||
{
|
||||
@ -1050,7 +969,7 @@ coff_write_relocs(abfd)
|
||||
for (i = 0; i < s->reloc_count; i++) {
|
||||
struct reloc n;
|
||||
arelent *q = p[i];
|
||||
memset(&n, 0, sizeof(n));
|
||||
memset((PTR)&n, 0, sizeof(n));
|
||||
n.r_vaddr = q->address + s->vma;
|
||||
n.r_symndx = get_index((*(q->sym_ptr_ptr)));
|
||||
n.r_type = q->howto->type;
|
||||
@ -1075,12 +994,9 @@ coff_write_linenumbers(abfd)
|
||||
if (l) {
|
||||
/* Found a linenumber entry, output */
|
||||
struct lineno out;
|
||||
bzero( &out, sizeof(out));
|
||||
out.l_lnno = 0;
|
||||
out.l_addr.l_symndx = l->u.offset;
|
||||
#ifdef LINENO_PADDING
|
||||
out.padding[0] = 0;
|
||||
out.padding[1] = 0;
|
||||
#endif
|
||||
bfd_coff_swap_lineno(abfd, &out);
|
||||
bfd_write((void *) &out, 1, LINESZ, abfd);
|
||||
l++;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user