Joseph Myers <joseph@codesourcery.com>
Andrew Stubbs <ams@codesourcery.com>
bfd/
* config.bfd (sh-*-uclinux* | sh[12]-*-uclinux*): Add
bfd_elf32_shl_vec, and FDPIC vectors to targ_selvecs.
* configure.in: Handle FDPIC vectors.
* elf32-sh-relocs.h: Add FDPIC and movi20 relocations.
* elf32-sh.c (DEFAULT_STACK_SIZE): Define.
(SYMBOL_FUNCDESC_LOCAL): Define. Use it instead of
SYMBOL_REFERENCES_LOCAL for function descriptors.
(fdpic_object_p): New.
(sh_reloc_map): Add FDPIC and movi20 relocations.
(sh_elf_info_to_howto, sh_elf_relocate_section): Handle new invalid
range.
(struct elf_sh_plt_info): Add got20 and short_plt. Update all
definitions.
(FDPIC_PLT_ENTRY_SIZE, FDPIC_PLT_LAZY_OFFSET): Define.
(fdpic_sh_plt_entry_be, fdpic_sh_plt_entry_le, fdpic_sh_plts): New.
(FDPIC_SH2A_PLT_ENTRY_SIZE, FDPIC_SH2A_PLT_LAZY_OFFSET): Define.
(fdpic_sh2a_plt_entry_be, fdpic_sh2a_plt_entry_le)
(fdpic_sh2a_short_plt_be, fdpic_sh2a_short_plt_le, fdpic_sh2a_plts):
New.
(get_plt_info): Handle FDPIC.
(MAX_SHORT_PLT): Define.
(get_plt_index, get_plt_offset): Handle short_plt.
(union gotref): New.
(struct elf_sh_link_hash_entry): Add funcdesc, rename tls_type to
got_type and adjust all uses. Add GOT_FUNCDESC.
(struct sh_elf_obj_tdata): Add local_funcdesc. Rename
local_got_tls_type to local_got_type.
(sh_elf_local_got_type): Renamed from sh_elf_local_got_tls_type. All
users changed.
(sh_elf_local_funcdesc): Define.
(struct elf_sh_link_hash_table): Add sfuncdesc, srelfuncdesc, fdpic_p,
and srofixup.
(sh_elf_link_hash_newfunc): Initialize new fields.
(sh_elf_link_hash_table_create): Set fdpic_p.
(sh_elf_omit_section_dynsym): New.
(create_got_section): Create .got.funcdesc, .rela.got.funcdesc
and .rofixup.
(allocate_dynrelocs): Allocate local function descriptors and space
for R_SH_FUNCDESC-related relocations, and for rofixups.
Handle GOT_FUNCDESC. Create fixups. Handle GOT entries which
require function descriptors.
(sh_elf_always_size_sections): Handle PT_GNU_STACK and __stacksize.
(sh_elf_modify_program_headers): New.
(sh_elf_size_dynamic_sections): Allocate function descriptors for
local symbols. Allocate .got.funcdesc contents. Allocate rofixups.
Handle local GOT entries of type GOT_FUNCDESC. Create fixups for
local GOT entries. Ensure that FDPIC libraries always have a PLTGOT
entry in the .dynamic section.
(sh_elf_add_dyn_reloc, sh_elf_got_offset, sh_elf_initialize_funcdesc)
(sh_elf_add_rofixup, sh_elf_osec_to_segment)
(sh_elf_osec_readonly_p, install_movi20_field): New functions.
(sh_elf_relocate_section): Handle new relocations, R_SH_FUNCDESC,
R_SH_GOTFUNCDESC and R_SH_GOTOFFFUNCDESC. Use sh_elf_got_offset
and .got.plt throughout to find _GLOBAL_OFFSET_TABLE_. Add rofixup
read-only section warnings. Handle undefined weak symbols. Generate
fixups for R_SH_DIR32 and GOT entries. Check for cross-segment
relocations and clear EF_SH_PIC. Handle 20-bit relocations.
Always generate R_SH_DIR32 for FDPIC instead of R_SH_RELATIVE.
(sh_elf_gc_sweep_hook): Handle R_SH_FUNCDESC, R_SH_GOTOFF20,
R_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC20, and R_SH_GOTOFFFUNCDESC.
Handle 20-bit relocations.
(sh_elf_copy_indirect_symbol): Copy function descriptor reference
counts.
(sh_elf_check_relocs): Handle new relocations. Make symbols
dynamic for FDPIC relocs. Account for rofixups. Error for FDPIC
symbol mismatches. Allocate a GOT for R_SH_DIR32. Allocate fixups
for R_SH_DIR32.
(sh_elf_copy_private_data): Copy PT_GNU_STACK size.
(sh_elf_merge_private_data): Copy initial flags. Do not clobber
non-mach flags. Set EF_SH_PIC for FDPIC. Reject FDPIC mismatches.
(sh_elf_finish_dynamic_symbol): Do not handle got_funcdesc entries
here. Rename sgot to sgotplt and srel to srelplt. Handle short_plt,
FDPIC descriptors, and got20. Create R_SH_FUNCDESC_VALUE for FDPIC.
Use install_movi20_field. Rename srel to srelgot. Always generate
R_SH_DIR32 for FDPIC instead of R_SH_RELATIVE.
(sh_elf_finish_dynamic_sections): Fill in the GOT pointer in rofixup.
Do not fill in reserved GOT entries for FDPIC. Correct DT_PLTGOT.
Rename sgot to sgotplt. Assert that the right number of rofixups
and dynamic relocations were allocated.
(sh_elf_use_relative_eh_frame, sh_elf_encode_eh_address): New.
(elf_backend_omit_section_dynsym): Use sh_elf_omit_section_dynsym.
(elf_backend_can_make_relative_eh_frame)
(elf_backend_can_make_lsda_relative_eh_frame)
(elf_backend_encode_eh_address): Define.
(TARGET_BIG_SYM, TARGET_BIG_NAME, TARGET_LITTLE_SYM)
(TARGET_LITTLE_NAME, elf_backend_modify_program_headers, elf32_bed):
Redefine for FDPIC vector.
* reloc.c: Add SH FDPIC and movi20 relocations.
* targets.c (_bfd_target_vector): Add FDPIC vectors.
* configure, bfd-in2.h, libbfd.h: Regenerated.
binutils/
* readelf.c (get_machine_flags): Handle EF_SH_PIC and EF_SH_FDPIC.
gas/
* config/tc-sh.c (sh_fdpic): New.
(sh_check_fixup): Handle relocations on movi20.
(parse_exp): Do not reject PIC operators here.
(build_Mytes): Check for unhandled PIC operators here. Use
sh_check_fixup for movi20.
(enum options): Add OPTION_FDPIC.
(md_longopts, md_parse_option, md_show_usage): Add --fdpic.
(sh_fix_adjustable, md_apply_fix): Handle FDPIC and movi20 relocations.
(sh_elf_final_processing): Handle --fdpic.
(sh_uclinux_target_format): New.
(sh_parse_name): Handle FDPIC relocation operators.
* config/tc-sh.h (TARGET_FORMAT): Define specially for TE_UCLINUX.
(sh_uclinux_target_format): Declare for TE_UCLINUX.
* configure.tgt (sh-*-uclinux* | sh[12]-*-uclinux*): Set
em=uclinux.
* doc/c-sh.texi (SH Options): Document --fdpic.
gas/testsuite/
* gas/sh/basic.exp: Run new tests. Handle uClinux like Linux.
* gas/sh/fdpic.d: New file.
* gas/sh/fdpic.s: New file.
* gas/sh/reg-prefix.d: Force big-endian.
* gas/sh/sh2a-pic.d: New file.
* gas/sh/sh2a-pic.s: New file.
* lib/gas-defs.exp (is_elf_format): Include sh*-*-uclinux*.
include/elf/
* sh.h (EF_SH_PIC, EF_SH_FDPIC): Define.
(R_SH_FIRST_INVALID_RELOC_6, R_SH_LAST_INVALID_RELOC_6): New. Adjust
other invalid ranges.
(R_SH_GOT20, R_SH_GOTOFF20, R_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC20)
(R_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC20, R_SH_FUNCDESC)
(R_SH_FUNCDESC_VALUE): New.
ld/
* Makefile.am (ALL_EMULATIONS): Add eshelf_fd.o and eshlelf_fd.o.
(eshelf_fd.c, eshlelf_fd.c): New rules.
* Makefile.in: Regenerate.
* configure.tgt (sh-*-uclinux*): Add shelf_fd and shlelf_fd
emulations.
* emulparams/shelf_fd.sh: New file.
* emulparams/shlelf_fd.sh: New file.
* emulparams/shlelf_linux.sh: Update comment.
ld/testsuite/
* ld-sh/sh.exp: Handle uClinux like Linux.
* lib/ld-lib.exp (is_elf_format): Include sh*-*-uclinux*.
* ld-sh/fdpic-funcdesc-shared.d: New file.
* ld-sh/fdpic-funcdesc-shared.s: New file.
* ld-sh/fdpic-funcdesc-static.d: New file.
* ld-sh/fdpic-funcdesc-static.s: New file.
* ld-sh/fdpic-gotfuncdesc-shared.d: New file.
* ld-sh/fdpic-gotfuncdesc-shared.s: New file.
* ld-sh/fdpic-gotfuncdesc-static.d: New file.
* ld-sh/fdpic-gotfuncdesc-static.s: New file.
* ld-sh/fdpic-gotfuncdesci20-shared.d: New file.
* ld-sh/fdpic-gotfuncdesci20-shared.s: New file.
* ld-sh/fdpic-gotfuncdesci20-static.d: New file.
* ld-sh/fdpic-gotfuncdesci20-static.s: New file.
* ld-sh/fdpic-goti20-shared.d: New file.
* ld-sh/fdpic-goti20-shared.s: New file.
* ld-sh/fdpic-goti20-static.d: New file.
* ld-sh/fdpic-goti20-static.s: New file.
* ld-sh/fdpic-gotofffuncdesc-shared.d: New file.
* ld-sh/fdpic-gotofffuncdesc-shared.s: New file.
* ld-sh/fdpic-gotofffuncdesc-static.d: New file.
* ld-sh/fdpic-gotofffuncdesc-static.s: New file.
* ld-sh/fdpic-gotofffuncdesci20-shared.d: New file.
* ld-sh/fdpic-gotofffuncdesci20-shared.s: New file.
* ld-sh/fdpic-gotofffuncdesci20-static.d: New file.
* ld-sh/fdpic-gotofffuncdesci20-static.s: New file.
* ld-sh/fdpic-gotoffi20-shared.d: New file.
* ld-sh/fdpic-gotoffi20-shared.s: New file.
* ld-sh/fdpic-gotoffi20-static.d: New file.
* ld-sh/fdpic-gotoffi20-static.s: New file.
* ld-sh/fdpic-plt-be.d: New file.
* ld-sh/fdpic-plt-le.d: New file.
* ld-sh/fdpic-plt.s: New file.
* ld-sh/fdpic-plti20-be.d: New file.
* ld-sh/fdpic-plti20-le.d: New file.
* ld-sh/fdpic-stack-default.d: New file.
* ld-sh/fdpic-stack-size.d: New file.
* ld-sh/fdpic-stack.s: New file.
2006-08-02 Richard Sandiford <richard@codesourcery.com>
Kazu Hirata <kazu@codesourcery.com>
Phil Edwards <phil@codesourcery.com>
Nathan Sidwell <nathan@codesourcery.com>
* config.bfd (sh-*-vxworks): Use bfd_elf32_shvxworks_vec and
bfd_elf32_shlvxworks_vec.
* configure.in (bfd_elf32_sh64_vec): Add elf-vxworks.lo.
(bfd_elf32_sh64l_vec, bfd_elf32_sh64lin_vec): Likewise.
(bfd_elf32_sh64blin_vec, bfd_elf32_sh64lnbsd_vec): Likewise.
(bfd_elf32_sh64nbsd_vec, bfd_elf32_sh_vec): Likewise.
(bfd_elf32_shblin_vec, bfd_elf32_shl_vec): Likewise.
(bfd_elf32_shl_symbian_vec, bfd_elf32_shlin_vec): Likewise.
(bfd_elf32_shlnbsd_vec, bfd_elf32_shnbsd_vec): Likewise.
(bfd_elf32_shlvxworks_vec, bfd_elf32_shvxworks_vec): New stanzas.
* configure: Regenerate.
* Makefile.am: Regenerate dependencies.
* Makefile.in: Regenerate.
* elf-vxworks.c (elf_vxworks_gott_symbol_p): New function.
(elf_vxworks_add_symbol_hook): Use it.
(elf_vxworks_link_output_symbol_hook): Likewise. Use the hash
table entry to check for weak undefined symbols and to obtain
the original bfd.
(elf_vxworks_emit_relocs): Use target_index instead of this_idx.
* elf32-sh-relocs.h: New file, split from elf32-sh.c.
(R_SH_DIR32): Use SH_PARTIAL32 for the partial_inplace field,
SH_SRC_MASK32 for the src_mask field, and SH_ELF_RELOC for the
special_function field.
(R_SH_REL32): Use SH_PARTIAL32 and SH_SRC_MASK32 here too.
(R_SH_REL32, R_SH_TLS_GD_32, R_SH_TLS_LD_32): Likewise.
(R_SH_TLS_LDO_32, R_SH_TLS_IE_32, R_SH_TLS_LE_32): Likewise.
(R_SH_TLS_DTPMOD32, R_SH_TLS_DTPOFF32, R_SH_TLS_TPOFF32): Likewise.
(R_SH_GOT32, R_SH_PLT32, R_SH_COPY, R_SH_GLOB_DAT): Likewise.
(R_SH_JMP_SLOT, R_SH_RELATIVE, R_SH_GOTOFF, R_SH_GOTPC): Likewise.
(SH_PARTIAL32, SH_SRC_MASK32, SH_ELF_RELOC): Undefine at end of file.
* elf32-sh.c: Include elf32-vxworks.h.
(MINUS_ONE): Define.
(sh_elf_howto_table): Include elf32-sh-relocs.h with SH_PARTIAL32
set to TRUE, SH_SRC_MASK32 set to 0xffffffff, and SH_ELF_RELOC set
to sh_elf_reloc.
(sh_vxworks_howto_table): New variable. Include elf32-sh-relocs.h
with SH_PARTIAL32 set to FALSE, SH_SRC_MASK32 set to 0, and
SH_ELF_RELOC set to bfd_elf_generic_reloc.
(vxworks_object_p, get_howto_table): New functions.
(sh_elf_reloc_type_lookup): Fix typo. Use get_howto_table.
(sh_elf_info_to_howto): Use get_howto_table.
(sh_elf_relax_section): Honor the partial_inplace field of the
R_SH_DIR32 howto.
(sh_elf_relax_delete_bytes): Likewise.
(elf_sh_plt_info): New structure.
(PLT_ENTRY_SIZE): Replace both definitions with...
(ELF_PLT_ENTRY_SIZE): ...this new macro, with separate definitions for
INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA.
(elf_sh_plt0_entry_be): Update sizes of both definitions accordingly.
(elf_sh_plt0_entry_le): Likewise.
(elf_sh_plt_entry_be, elf_sh_plt_entry_le): Likewise.
(elf_sh_pic_plt_entry_be, elf_sh_pic_plt_entry_le): Likewise.
(elf_sh_plts): New structure, with separate definitions for
INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA.
(elf_sh_plt0_entry): Delete both definitions.
(elf_sh_plt_entry, elf_sh_pic_plt_entry): Likewise.
(elf_sh_sizeof_plt, elf_sh_plt_plt0_offset): Likewise.
(elf_sh_plt_temp_offset, elf_sh_plt_symbol_offset): Likewise.
(elf_sh_plt_reloc_offset): Likewise.
(movi_shori_putval): Delete in favor of...
(install_plt_field): ...this new function, with separate definitions
for INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA.
(get_plt_info): New function, with separate definitions
for INCLUDE_SHMEDIA and !INCLUDE_SHMEDIA.
(elf_sh_plt0_linker_offset, elf_sh_plt0_gotid_offset): Delete.
(VXWORKS_PLT_HEADER_SIZE, VXWORKS_PLT_ENTRY_SIZE): New macros.
(vxworks_sh_plt0_entry_be, vxworks_sh_plt0_entry_le): New constants.
(vxworks_sh_plt_entry_be, vxworks_sh_plt_entry_le): Likewise.
(vxworks_sh_pic_plt_entry_be, vxworks_sh_pic_plt_entry_le): Likewise.
(get_plt_index, get_plt_offset): New functions.
(elf_sh_link_hash_table): Add srelplt2, plt_info and vxworks_p fields.
(sh_elf_link_hash_table_create): Initialize them.
(sh_elf_create_dynamic_sections): Call
elf_vxworks_create_dynamic_sections for VxWorks.
(allocate_dynrelocs): Use htab->plt_info to get the size of PLT
entries. Allocate relocation entries in .rela.plt.unloaded if
generating a VxWorks executable.
(sh_elf_always_size_sections): New function.
(sh_elf_size_dynamic_sections): Extend .rela.plt handling to
.rela.plt.unloaded.
(sh_elf_relocate_section): Use get_howto_table. Honor
partial_inplace when calculating the addend for dynamic
relocations. Use get_plt_index.
(sh_elf_finish_dynamic_symbol): Use get_plt_index, install_plt_field
and htab->plt_info. Fill in the bra .plt offset for VxWorks
executables. Populate .rela.plt.unloaded. Do not make
_GLOBAL_OFFSET_TABLE_ absolute on VxWorks.
(sh_elf_finish_dynamic_sections): Use install_plt_field and
htab->plt_info. Handle cases where there is no special PLT header.
Populate the first relocation in .rela.plt.unloaded and fix up
the remaining entries.
(sh_elf_plt_sym_val): Use get_plt_info.
(elf_backend_always_size_sections): Define.
(TARGET_BIG_SYM, TARGET_BIG_NAME): Override for VxWorks.
(TARGET_LITTLE_SYM, TARGET_BIG_SYM): Likewise.
(elf32_bed, elf_backend_want_plt_sym): Likewise.
(elf_symbol_leading_char, elf_backend_want_got_underscore): Likewise.
(elf_backend_grok_prstatus, elf_backend_grok_psinfo): Likewise.
(elf_backend_add_symbol_hook): Likewise.
(elf_backend_link_output_symbol_hook): Likewise.
(elf_backend_emit_relocs): Likewise.
(elf_backend_final_write_processing): Likewise.
(ELF_MAXPAGESIZE, ELF_COMMONPAGESIZE): Likewise.
* targets.c (bfd_elf32_shlvxworks_vec): Declare.
(bfd_elf32_shvxworks_vec): Likewise.
(_bfd_target_vector): Include bfd_elf32_shlvxworks_vec and
bfd_elf32_shvxworks_vec.
gas/
* config/tc-sh.c (apply_full_field_fix): New function.
(md_apply_fix): Use it instead of md_number_to_chars. Do not fill
in fx_addnumber for BFD_RELOC_32_PLT_PCREL.
(tc_gen_reloc): Use fx_addnumber rather than 0 as the default case.
* config/tc-sh.h (TARGET_FORMAT): Override for TE_VXWORKS.
ld/
2006-08-02 Richard Sandiford <richard@codesourcery.com>
Kazu Hirata <kazu@codesourcery.com>
Phil Edwards <phil@codesourcery.com>
* Makefile.am (ALL_EMULATIONS): Add eshelf_vxworks.o and
eshlelf_vxworks.o.
(eshelf_vxworks.c, eshlelf_vxworks.c): New rules.
* Makefile.in: Regenerate.
* configure.tgt (sh-*-vxworks): Use shelf_vxworks and
shlelf_vxworks.
* emulparams/shelf_vxworks.sh: New file.
* emulparams/shlelf_vxworks.sh: Likewise.
* emulparams/vxworks.sh (FINI): Prefix _etext with ${SYMPREFIX}.
(OTHER_END_SYMBOLS): Likewise _ehdr.
(DATA_END_SYMBOLS): Likewise _edata.
* emultempl/vxworks.em (vxworks_after_open): Check whether output_bfd
is indeed an ELF file before dealing with --force-dynamic.
ld/testsuite/
* ld-sh/rd-sh.exp: Treat vxworks1-static.d specially.
* ld-sh/sh-vxworks.exp: New file.
* ld-sh/sh.exp: Extend sh-linux SIZEOF_HEADERS handling to
sh-*-vxworks.
* ld-sh/vxworks1-le.dd, ld-sh/vxworks1-lib-le.dd,
* ld-sh/vxworks1-lib.dd, ld-sh/vxworks1-lib.nd,
* ld-sh/vxworks1-lib.rd, ld-sh/vxworks1-lib.s,
* ld-sh/vxworks1-static.d, ld-sh/vxworks1.dd,
* ld-sh/vxworks1.ld, ld-sh/vxworks1.rd, ld-sh/vxworks1.s,
* ld-sh/vxworks2-static.sd, ld-sh/vxworks2.s,
* ld-sh/vxworks2.sd, ld-sh/vxworks3-le.dd,
* ld-sh/vxworks3-lib-le.dd, ld-sh/vxworks3-lib.dd,
* ld-sh/vxworks3-lib.s, ld-sh/vxworks3.dd, ld-sh/vxworks3.s,
* ld-sh/vxworks4.d, ld-sh/vxworks4a.s, ld-sh/vxworks4b.s,
* ld-sh/reloc1.s, ld-sh/reloc1.d: New tests.
Nick Clifton
Alan Modra
Richard Sandiford