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Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>

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elf64-alpha multiple .got rewrite:

	* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
	(bfd_elf*_mkobject): Don't define here ...
	* elfxx-target.h: ... but rather here.  Default always_size_sections
	hook to NULL.
	* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
	what the #defines in elf-bfd.h transmuted it to anyway.

	* section.c: Add SEC_LINKER_CREATED flag.
	* bfd-in2.h: Rebuild.
	* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
	relocation section flags.
	(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
	SEC_IN_MEMORY to recognize generated bits.
	* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
	Likewise.
	* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
	mips_elf_create_compact_rel_section, mips_elf_create_got_section,
	mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
	* elf32-ppc.c (ppc_elf_create_linker_section,
	ppc_elf_size_dynamic_sections): Likewise.
	* elf32-sparc.c (elf32_sparc_check_relocs,
	elf32_sparc_size_dynamic_sections): Likewise.
	* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
	section flags.
	(_bfd_elf_create_dynamic_sections): Likewise.
	(_bfd_elf_make_linker_section_rela): Likewise.
	* elflink.h (elf_link_create_dynamic_sections): Likewise.
	(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
	(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
	to identify generated bits.
	(elf_link_input_bfd): Likewise.

	* elf64-alpha.c: Rewrite everything touching relocations.
This commit is contained in:
Ian Lance Taylor
1997-01-03 22:09:40 +00:00
parent 98141a3cc1
commit ff12f30335
14 changed files with 1537 additions and 923 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
bfd/elflink.h
View File

@@ -35,7 +35,7 @@ struct elf_info_failed
{
boolean failed;
struct bfd_link_info *info;
};
};
/* Given an ELF BFD, add symbols to the global hash table as
appropriate. */
@@ -281,7 +281,7 @@ elf_link_add_object_symbols (abfd, info)
goto error_return;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd,
(info, abfd,
name + sizeof ".gnu.warning." - 1,
BSF_WARNING, s, (bfd_vma) 0, msg, false, collect,
(struct bfd_link_hash_entry **) NULL)))
@@ -1051,7 +1051,8 @@ elf_link_create_dynamic_sections (abfd, info)
/* Note that we set the SEC_IN_MEMORY flag for all of these
sections. */
flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
/* A dynamically linked executable has a .interp section, but a
shared library does not. */
@@ -1257,7 +1258,7 @@ NAME(_bfd_elf,link_read_relocs) (abfd, o, external_relocs, internal_relocs,
/* Cache the results for next time, if we can. */
if (keep_memory)
elf_section_data (o)->relocs = internal_relocs;
if (alloc1 != NULL)
free (alloc1);
@@ -1371,6 +1372,13 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
if (info->hash->creator->flavour != bfd_target_elf_flavour)
return true;
/* The backend may have to create some sections regardless of whether
we're dynamic or not. */
bed = get_elf_backend_data (output_bfd);
if (bed->elf_backend_always_size_sections
&& ! (*bed->elf_backend_always_size_sections) (output_bfd, info))
return false;
dynobj = elf_hash_table (info)->dynobj;
/* If there were no dynamic objects in the link, there is nothing to
@@ -1410,7 +1418,7 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
if (indx == (bfd_size_type) -1
|| ! elf_add_dynamic_entry (info, DT_SONAME, indx))
return false;
}
}
if (info->symbolic)
{
@@ -1494,7 +1502,6 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
/* The backend must work out the sizes of all the other dynamic
sections. */
bed = get_elf_backend_data (output_bfd);
if (! (*bed->elf_backend_size_dynamic_sections) (output_bfd, info))
return false;
@@ -1805,7 +1812,7 @@ struct elf_finfo_failed
{
boolean failed;
struct elf_final_link_info *finfo;
};
};
/* Do the final step of an ELF link. */
@@ -2221,7 +2228,7 @@ elf_bfd_final_link (abfd, info)
{
if (*rel_hash == NULL)
continue;
BFD_ASSERT ((*rel_hash)->indx >= 0);
if (rel_hdr->sh_entsize == sizeof (Elf_External_Rel))
@@ -2375,11 +2382,10 @@ elf_bfd_final_link (abfd, info)
if ((o->flags & SEC_HAS_CONTENTS) == 0
|| o->_raw_size == 0)
continue;
if ((o->flags & SEC_IN_MEMORY) == 0)
if ((o->flags & SEC_LINKER_CREATED) == 0)
{
/* At this point, we are only interested in sections
created by elf_link_create_dynamic_sections. FIXME:
This test is fragile. */
created by elf_link_create_dynamic_sections. */
continue;
}
if ((elf_section_data (o->output_section)->this_hdr.sh_type
@@ -2927,11 +2933,10 @@ elf_link_input_bfd (finfo, input_bfd)
|| (o->_raw_size == 0 && (o->flags & SEC_RELOC) == 0))
continue;
if ((o->flags & SEC_IN_MEMORY) != 0
&& input_bfd == elf_hash_table (finfo->info)->dynobj)
if ((o->flags & SEC_LINKER_CREATED) != 0)
{
/* Section was created by elf_link_create_dynamic_sections.
FIXME: This test is fragile. */
/* Section was created by elf_link_create_dynamic_sections
or somesuch. */
continue;
}