/* COFF specific linker code.
- Copyright 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
+ Copyright 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
static char *get_name PARAMS ((char *, char **));
static int process_embedded_commands
PARAMS ((bfd *, struct bfd_link_info *, bfd *));
+static void mark_relocs PARAMS ((struct coff_final_link_info *, bfd *));
/* Create an entry in a COFF linker hash table. */
bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
if ((sym.n_sclass == C_EXT
+ || sym.n_sclass == C_WEAKEXT
+ || (obj_pe (abfd) && sym.n_sclass == C_NT_WEAK)
+#ifdef C_SYSTEM
+ || sym.n_sclass == C_SYSTEM
+#endif
|| (sym_is_global && (*sym_is_global) (abfd, &sym)))
&& (sym.n_scnum != 0 || sym.n_value != 0))
{
bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
if (sym.n_sclass == C_EXT
+ || sym.n_sclass == C_WEAKEXT
+ || (obj_pe (abfd) && sym.n_sclass == C_NT_WEAK)
+#ifdef C_SYSTEM
+ || sym.n_sclass == C_SYSTEM
+#endif
|| (sym_is_global && (*sym_is_global) (abfd, &sym)))
{
const char *name;
{
flags = BSF_EXPORT | BSF_GLOBAL;
section = coff_section_from_bfd_index (abfd, sym.n_scnum);
- value -= section->vma;
+ if (! obj_pe (abfd))
+ value -= section->vma;
}
+ if (sym.n_sclass == C_WEAKEXT
+ || (obj_pe (abfd) && sym.n_sclass == C_NT_WEAK))
+ flags = BSF_WEAK;
+
if (! (bfd_coff_link_add_one_symbol
(info, abfd, name, flags, section, value,
(const char *) NULL, copy, false,
&& (*sym_hash)->type == T_NULL)
|| sym.n_scnum != 0
|| (sym.n_value != 0
- && (*sym_hash)->root.type != bfd_link_hash_defined))
+ && (*sym_hash)->root.type != bfd_link_hash_defined
+ && (*sym_hash)->root.type != bfd_link_hash_defweak))
{
(*sym_hash)->class = sym.n_sclass;
if (sym.n_type != T_NULL)
if ((*sym_hash)->type != T_NULL
&& (*sym_hash)->type != sym.n_type)
(*_bfd_error_handler)
- ("Warning: type of symbol `%s' changed from %d to %d in %s",
+ (_("Warning: type of symbol `%s' changed from %d to %d in %s"),
name, (*sym_hash)->type, sym.n_type,
bfd_get_filename (abfd));
(*sym_hash)->type = sym.n_type;
finfo.contents = NULL;
finfo.external_relocs = NULL;
finfo.internal_relocs = NULL;
+ finfo.global_to_static = false;
debug_merge_allocated = false;
coff_data (abfd)->link_info = info;
== bfd_target_coff_flavour))
{
sub = p->u.indirect.section->owner;
- if (! sub->output_has_begun)
+ if (! bfd_coff_link_output_has_begun (sub, & finfo))
{
if (! _bfd_coff_link_input_bfd (&finfo, sub))
goto error_return;
}
}
+ if (! bfd_coff_final_link_postscript (abfd, & finfo))
+ goto error_return;
+
/* Free up the buffers used by _bfd_coff_link_input_bfd. */
coff_debug_merge_hash_table_free (&finfo.debug_merge);
return false;
}
+ /* If doing task linking (ld --task-link) then make a pass through the
+ global symbols, writing out any that are defined, and making them
+ static. */
+ if (info->task_link)
+ {
+ finfo.failed = false;
+ coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_task_globals,
+ (PTR) &finfo);
+ if (finfo.failed)
+ goto error_return;
+ }
+
/* Write out the global symbols. */
finfo.failed = false;
coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym,
*secpp = bfd_com_section_ptr;
}
- /* Extract the flag indicating if this symbol is used by a relocation */
- if (( finfo->info->strip != strip_none
+ /* Extract the flag indicating if this symbol is used by a
+ relocation. */
+ if ((finfo->info->strip != strip_none
|| finfo->info->discard != discard_none)
&& finfo->info->relocateable)
dont_skip_symbol = *indexp;
if (! skip)
{
if (isym.n_sclass == C_EXT
+ || isym.n_sclass == C_WEAKEXT
+ || (obj_pe (input_bfd) && isym.n_sclass == C_NT_WEAK)
+#ifdef C_SYSTEM
+ || isym.n_sclass == C_SYSTEM
+#endif
|| (sym_is_global && (*sym_is_global) (input_bfd, &isym)))
{
/* This is a global symbol. Global symbols come at the
end of the symbol table, so skip them for now.
- Function symbols, however, are an exception, and are
- not moved to the end. */
+ Locally defined function symbols, however, are an
+ exception, and are not moved to the end. */
global = true;
- if (! ISFCN (isym.n_type))
+ if (! ISFCN (isym.n_type) || isym.n_scnum == 0)
skip = true;
}
else
}
/* If we stripping debugging symbols, and this is a debugging
- symbol, then skip it. */
+ symbol, then skip it. FIXME: gas sets the section to N_ABS
+ for some types of debugging symbols; I don't know if this is
+ a bug or not. In any case, we handle it here. */
if (! skip
&& finfo->info->strip == strip_debugger
&& ! dont_skip_symbol
- && isym.n_scnum == N_DEBUG)
+ && (isym.n_scnum == N_DEBUG
+ || (isym.n_scnum == N_ABS
+ && (isym.n_sclass == C_AUTO
+ || isym.n_sclass == C_REG
+ || isym.n_sclass == C_MOS
+ || isym.n_sclass == C_MOE
+ || isym.n_sclass == C_MOU
+ || isym.n_sclass == C_ARG
+ || isym.n_sclass == C_REGPARM
+ || isym.n_sclass == C_FIELD
+ || isym.n_sclass == C_EOS))))
skip = true;
/* If some symbols are stripped based on the name, work out the
if (isym.n_scnum > 0)
{
isym.n_scnum = (*secpp)->output_section->target_index;
- isym.n_value += ((*secpp)->output_section->vma
- + (*secpp)->output_offset
- - (*secpp)->vma);
+ isym.n_value += (*secpp)->output_offset;
+ if (! obj_pe (input_bfd))
+ isym.n_value -= (*secpp)->vma;
+ if (! obj_pe (finfo->output_bfd))
+ isym.n_value += (*secpp)->output_section->vma;
}
/* The value of a C_FILE symbol is the symbol index of the
finfo->last_file = isym;
}
+ /* If doing task linking, convert normal global function symbols to
+ static functions. */
+
+ if (finfo->info->task_link
+ && (isym.n_sclass == C_EXT
+ || isym.n_sclass == C_WEAKEXT
+ || (obj_pe (input_bfd) && isym.n_sclass == C_NT_WEAK)))
+ isym.n_sclass = C_STAT;
+
/* Output the symbol. */
bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym);
&& o->reloc_count != 0)
{
((*_bfd_error_handler)
- ("%s: relocs in section `%s', but it has no contents",
+ (_("%s: relocs in section `%s', but it has no contents"),
bfd_get_filename (input_bfd),
bfd_get_section_name (input_bfd, o)));
bfd_set_error (bfd_error_no_contents);
else
isym.n_scnum = sec->target_index;
isym.n_value = (h->root.u.def.value
- + sec->vma
+ h->root.u.def.section->output_offset);
+ if (! obj_pe (finfo->output_bfd))
+ isym.n_value += sec->vma;
}
break;
if (isym.n_sclass == C_NULL)
isym.n_sclass = C_EXT;
+ /* If doing task linking and this is the pass where we convert
+ defined globals to statics, then do that conversion now. If the
+ symbol is not being converted, just ignore it and it will be
+ output during a later pass. */
+ if (finfo->global_to_static)
+ {
+ if (isym.n_sclass != C_EXT
+ && isym.n_sclass != C_WEAKEXT
+ && (! obj_pe (output_bfd) || isym.n_sclass != C_NT_WEAK))
+ {
+ return true;
+ }
+ isym.n_sclass = C_STAT;
+ }
+
isym.n_numaux = h->numaux;
bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) finfo->outsyms);
return true;
}
+/* Write out task global symbols, converting them to statics. Called
+ via coff_link_hash_traverse. Calls bfd_coff_write_global_sym to do
+ the dirty work, if the symbol we are processing needs conversion. */
+
+boolean
+_bfd_coff_write_task_globals (h, data)
+ struct coff_link_hash_entry *h;
+ PTR data;
+{
+ struct coff_final_link_info *finfo = (struct coff_final_link_info *) data;
+ boolean rtnval = true;
+ boolean save_global_to_static;
+
+ if (h->indx < 0)
+ {
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ save_global_to_static = finfo->global_to_static;
+ finfo->global_to_static = true;
+ rtnval = _bfd_coff_write_global_sym (h, data);
+ finfo->global_to_static = save_global_to_static;
+ break;
+ default:
+ break;
+ }
+ }
+ return (rtnval);
+}
+
/* Handle a link order which is supposed to generate a reloc. */
boolean
sec = sections[symndx];
val = (sec->output_section->vma
+ sec->output_offset
- + sym->n_value
- - sec->vma);
+ + sym->n_value);
+ if (! obj_pe (input_bfd))
+ val -= sec->vma;
}
}
else
if (info->base_file)
{
/* Emit a reloc if the backend thinks it needs it. */
- if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto))
+ if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto))
{
- /* relocation to a symbol in a section which
- isn't absolute - we output the address here
- to a file */
- bfd_vma addr = rel->r_vaddr
- - input_section->vma
- + input_section->output_offset
- + input_section->output_section->vma;
- if (coff_data(output_bfd)->pe)
+ /* Relocation to a symbol in a section which isn't
+ absolute. We output the address here to a file.
+ This file is then read by dlltool when generating the
+ reloc section. Note that the base file is not
+ portable between systems. We write out a long here,
+ and dlltool reads in a long. */
+ long addr = (rel->r_vaddr
+ - input_section->vma
+ + input_section->output_offset
+ + input_section->output_section->vma);
+ if (coff_data (output_bfd)->pe)
addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
- /* FIXME: Shouldn't 4 be sizeof (addr)? */
- fwrite (&addr, 1,4, (FILE *) info->base_file);
+ if (fwrite (&addr, 1, sizeof (long), (FILE *) info->base_file)
+ != sizeof (long))
+ {
+ bfd_set_error (bfd_error_system_call);
+ return false;
+ }
}
}
break;
case bfd_reloc_outofrange:
(*_bfd_error_handler)
- ("%s: bad reloc address 0x%lx in section `%s'",
+ (_("%s: bad reloc address 0x%lx in section `%s'"),
bfd_get_filename (input_bfd),
(unsigned long) rel->r_vaddr,
bfd_get_section_name (input_bfd, input_section));
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