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* xcofflink.c (xcoff_link_add_symbols): Rename local variable sub 

to o.  Clobber and restore the list of new csects around the call
	to _bfd_generic_link_add_one_symbol, in case it wants to report a
	linker error and the linker wants to read the symbol table.  Reset
	the line number count of a real section even if it has no relocs.
	(_bfd_xcoff_bfd_final_link): If shared, set the DYNAMIC flag.
This commit is contained in:
Ian Lance Taylor 1995-11-03 21:20:41 +00:00
parent fa0c23ebb0
commit 583db7a8e1
2 changed files with 83 additions and 50 deletions
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12
bfd/ChangeLog
View File

@ -1,3 +1,15 @@
Fri Nov 3 15:54:59 1995 Ian Lance Taylor <ian@cygnus.com>
* xcofflink.c (xcoff_link_add_symbols): Rename local variable sub
to o. Clobber and restore the list of new csects around the call
to _bfd_generic_link_add_one_symbol, in case it wants to report a
linker error and the linker wants to read the symbol table. Reset
the line number count of a real section even if it has no relocs.
(_bfd_xcoff_bfd_final_link): If shared, set the DYNAMIC flag.
* coffgen.c (_bfd_coff_read_string_table): Warn if the string size
is too small.
Thu Nov 2 23:16:39 1995 Ian Lance Taylor <ian@cygnus.com>
* xcofflink.c (_bfd_ppc_xcoff_relocate_section): Don't warn about

121
bfd/xcofflink.c
View File

@ -878,7 +878,8 @@ xcoff_link_add_symbols (abfd, info)
struct xcoff_link_hash_entry **sym_hash;
asection **csect_cache;
bfd_size_type linesz;
asection *sub;
asection *o;
asection *last_real;
boolean keep_syms;
asection *csect;
unsigned int csect_index;
@ -1004,39 +1005,41 @@ xcoff_link_add_symbols (abfd, info)
/* Read in the relocs and line numbers for each section. */
linesz = bfd_coff_linesz (abfd);
for (sub = abfd->sections; sub != NULL; sub = sub->next)
last_real = NULL;
for (o = abfd->sections; o != NULL; o = o->next)
{
if ((sub->flags & SEC_RELOC) != 0)
last_real = o;
if ((o->flags & SEC_RELOC) != 0)
{
reloc_info[sub->target_index].relocs =
xcoff_read_internal_relocs (abfd, sub, true, (bfd_byte *) NULL,
reloc_info[o->target_index].relocs =
xcoff_read_internal_relocs (abfd, o, true, (bfd_byte *) NULL,
false, (struct internal_reloc *) NULL);
reloc_info[sub->target_index].csects =
(asection **) malloc (sub->reloc_count * sizeof (asection *));
if (reloc_info[sub->target_index].csects == NULL)
reloc_info[o->target_index].csects =
(asection **) malloc (o->reloc_count * sizeof (asection *));
if (reloc_info[o->target_index].csects == NULL)
{
bfd_set_error (bfd_error_no_memory);
goto error_return;
}
memset (reloc_info[sub->target_index].csects, 0,
sub->reloc_count * sizeof (asection *));
memset (reloc_info[o->target_index].csects, 0,
o->reloc_count * sizeof (asection *));
}
if ((info->strip == strip_none || info->strip == strip_some)
&& sub->lineno_count > 0)
&& o->lineno_count > 0)
{
bfd_byte *linenos;
linenos = (bfd_byte *) malloc (sub->lineno_count * linesz);
linenos = (bfd_byte *) malloc (o->lineno_count * linesz);
if (linenos == NULL)
{
bfd_set_error (bfd_error_no_memory);
goto error_return;
}
reloc_info[sub->target_index].linenos = linenos;
if (bfd_seek (abfd, sub->line_filepos, SEEK_SET) != 0
|| (bfd_read (linenos, linesz, sub->lineno_count, abfd)
!= linesz * sub->lineno_count))
reloc_info[o->target_index].linenos = linenos;
if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0
|| (bfd_read (linenos, linesz, o->lineno_count, abfd)
!= linesz * o->lineno_count))
goto error_return;
}
}
@ -1606,11 +1609,24 @@ xcoff_link_add_symbols (abfd, info)
}
}
/* _bfd_generic_link_add_one_symbol may call the linker to
generate an error message, and the linker may try to read
the symbol table to give a good error. Right now, the
line numbers are in an inconsistent state, since they are
counted both in the real sections and in the new csects.
We need to leave the count in the real sections so that
the linker can report the line number of the error
correctly, so temporarily clobber the link to the csects
so that the linker will not try to read the line numbers
a second time from the csects. */
BFD_ASSERT (last_real->next == first_csect);
last_real->next = NULL;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, name, flags, section, value,
(const char *) NULL, copy, true,
(struct bfd_link_hash_entry **) sym_hash)))
goto error_return;
last_real->next = first_csect;
if (smtyp == XTY_CM)
{
@ -1650,30 +1666,34 @@ xcoff_link_add_symbols (abfd, info)
csect_cache += sym.n_numaux + 1;
}
/* Make sure that we have seen all the relocs. */
for (sub = abfd->sections; sub != first_csect; sub = sub->next)
{
/* Reset the section size, since the data is now attached to the
csects. Don't reset the size of the .debug section, since we
need to read it below in bfd_xcoff_size_dynamic_sections. */
if (strcmp (bfd_get_section_name (abfd, sub), ".debug") != 0)
sub->_raw_size = 0;
BFD_ASSERT (last_real == NULL || last_real->next == first_csect);
if ((sub->flags & SEC_RELOC) != 0)
/* Make sure that we have seen all the relocs. */
for (o = abfd->sections; o != first_csect; o = o->next)
{
/* Reset the section size and the line numebr count, since the
data is now attached to the csects. Don't reset the size of
the .debug section, since we need to read it below in
bfd_xcoff_size_dynamic_sections. */
if (strcmp (bfd_get_section_name (abfd, o), ".debug") != 0)
o->_raw_size = 0;
o->lineno_count = 0;
if ((o->flags & SEC_RELOC) != 0)
{
bfd_size_type i;
struct internal_reloc *rel;
asection **rel_csect;
rel = reloc_info[sub->target_index].relocs;
rel_csect = reloc_info[sub->target_index].csects;
for (i = 0; i < sub->reloc_count; i++, rel++, rel_csect++)
rel = reloc_info[o->target_index].relocs;
rel_csect = reloc_info[o->target_index].csects;
for (i = 0; i < o->reloc_count; i++, rel++, rel_csect++)
{
if (*rel_csect == NULL)
{
(*_bfd_error_handler)
("%s: reloc %s:%d not in csect",
bfd_get_filename (abfd), sub->name, i);
bfd_get_filename (abfd), o->name, i);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
@ -1725,33 +1745,31 @@ xcoff_link_add_symbols (abfd, info)
}
}
free (reloc_info[sub->target_index].csects);
reloc_info[sub->target_index].csects = NULL;
free (reloc_info[o->target_index].csects);
reloc_info[o->target_index].csects = NULL;
/* Reset SEC_RELOC, the reloc_count, and the lineno_count,
since the reloc and lineno information is now attached to
the csects. */
sub->flags &=~ SEC_RELOC;
sub->reloc_count = 0;
sub->lineno_count = 0;
/* Reset SEC_RELOC and the reloc_count, since the reloc
information is now attached to the csects. */
o->flags &=~ SEC_RELOC;
o->reloc_count = 0;
/* If we are not keeping memory, free the reloc information. */
if (! info->keep_memory
&& coff_section_data (abfd, sub) != NULL
&& coff_section_data (abfd, sub)->relocs != NULL
&& ! coff_section_data (abfd, sub)->keep_relocs)
&& coff_section_data (abfd, o) != NULL
&& coff_section_data (abfd, o)->relocs != NULL
&& ! coff_section_data (abfd, o)->keep_relocs)
{
free (coff_section_data (abfd, sub)->relocs);
coff_section_data (abfd, sub)->relocs = NULL;
free (coff_section_data (abfd, o)->relocs);
coff_section_data (abfd, o)->relocs = NULL;
}
}
/* Free up the line numbers. FIXME: We could cache these
somewhere for the final link, to avoid reading them again. */
if (reloc_info[sub->target_index].linenos != NULL)
if (reloc_info[o->target_index].linenos != NULL)
{
free (reloc_info[sub->target_index].linenos);
reloc_info[sub->target_index].linenos = NULL;
free (reloc_info[o->target_index].linenos);
reloc_info[o->target_index].linenos = NULL;
}
}
@ -1764,12 +1782,12 @@ xcoff_link_add_symbols (abfd, info)
error_return:
if (reloc_info != NULL)
{
for (sub = abfd->sections; sub != NULL; sub = sub->next)
for (o = abfd->sections; o != NULL; o = o->next)
{
if (reloc_info[sub->target_index].csects != NULL)
free (reloc_info[sub->target_index].csects);
if (reloc_info[sub->target_index].linenos != NULL)
free (reloc_info[sub->target_index].linenos);
if (reloc_info[o->target_index].csects != NULL)
free (reloc_info[o->target_index].csects);
if (reloc_info[o->target_index].linenos != NULL)
free (reloc_info[o->target_index].linenos);
}
free (reloc_info);
}
@ -2894,6 +2912,9 @@ _bfd_xcoff_bfd_final_link (abfd, info)
bfd_byte *external_relocs = NULL;
char strbuf[STRING_SIZE_SIZE];
if (info->shared)
abfd->flags |= DYNAMIC;
symesz = bfd_coff_symesz (abfd);
finfo.info = info;