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Based on patches from Eric Youngdale <eric@aib.com>: 

* elflink.h (NAME(bfd_elf,size_dynamic_sections)): If -Bsymbolic,
	output a DT_SYMBOLIC dynamic entry.
	(elf_adjust_dynamic_symbol): If -Bsymbolic, don't require a PLT
	entry for a locally defined symbol.
	* elf32-i386.c (elf_i386_relocate_section): If -Bsymbolic, do warn
	about undefined symbols, and fill in the GOT entry for a symbol
	defined in a regular object file.
	(elf_i386_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
	reloc rather than a GLOB_DAT reloc for a symbol defined in a
	regular object file.
	* elf32-m68k.c (elf_m68k_relocate_section): If -Bsymbolic, do warn
	about undefined symbols, and fill in the GOT entry for a symbol
	defined in a regular object file.
	(elf_m68k_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
	reloc rather than a GLOB_DAT reloc for a symbol defined in a
	regular object file.
	* elf32-sparc.c (elf32_sparc_relocate_section): If -Bsymbolic, do
	warn about undefined symbols, and fill in the GOT entry for a
	symbol defined in a regular object file.
	(elf32_sparc_finish_dynamic_symbol): If -Bsymbolic, output a
	RELATIVE reloc rather than a GLOB_DAT reloc for a symbol defined
	in a regular object file.
This commit is contained in:
Ian Lance Taylor 1995-07-10 17:31:31 +00:00
parent 5b2c2b363d
commit 951fe66d62
2 changed files with 40 additions and 0 deletions
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24
bfd/ChangeLog
View File

@ -5,6 +5,30 @@ Mon Jul 10 11:45:55 1995 Ken Raeburn <raeburn@cygnus.com>
Mon Jul 10 11:09:58 1995 Ian Lance Taylor <ian@cygnus.com>
Based on patches from Eric Youngdale <eric@aib.com>:
* elflink.h (NAME(bfd_elf,size_dynamic_sections)): If -Bsymbolic,
output a DT_SYMBOLIC dynamic entry.
(elf_adjust_dynamic_symbol): If -Bsymbolic, don't require a PLT
entry for a locally defined symbol.
* elf32-i386.c (elf_i386_relocate_section): If -Bsymbolic, do warn
about undefined symbols, and fill in the GOT entry for a symbol
defined in a regular object file.
(elf_i386_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
reloc rather than a GLOB_DAT reloc for a symbol defined in a
regular object file.
* elf32-m68k.c (elf_m68k_relocate_section): If -Bsymbolic, do warn
about undefined symbols, and fill in the GOT entry for a symbol
defined in a regular object file.
(elf_m68k_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
reloc rather than a GLOB_DAT reloc for a symbol defined in a
regular object file.
* elf32-sparc.c (elf32_sparc_relocate_section): If -Bsymbolic, do
warn about undefined symbols, and fill in the GOT entry for a
symbol defined in a regular object file.
(elf32_sparc_finish_dynamic_symbol): If -Bsymbolic, output a
RELATIVE reloc rather than a GLOB_DAT reloc for a symbol defined
in a regular object file.
* config/m68k-coff.mt (SELECT_VECS): Rename from SELECT_VECTORS.
Correct elements to be actual BFD vector names.

16
bfd/elflink.h
View File

@ -1273,6 +1273,12 @@ NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
return false;
}
if (info->symbolic)
{
if (! elf_add_dynamic_entry (info, DT_SYMBOLIC, 0))
return false;
}
if (rpath != NULL)
{
bfd_size_type indx;
@ -1431,6 +1437,16 @@ elf_adjust_dynamic_symbol (h, data)
bfd *dynobj;
struct elf_backend_data *bed;
/* If -Bsymbolic was used (which means to bind references to global
symbols to the definition within the shared object), and this
symbol was defined in a regular object, then it actually doesn't
need a PLT entry. */
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
&& eif->info->shared
&& eif->info->symbolic
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
h->elf_link_hash_flags &=~ ELF_LINK_HASH_NEEDS_PLT;
/* If this symbol does not require a PLT entry, and it is not
defined by a dynamic object, or is not referenced by a regular
object, ignore it. FIXME: Do we need to worry about symbols