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4 commits

Author SHA1 Message Date
Nick Clifton
8e45593ff3 2010-05-21 Daniel Jacobowitz <dan@codesourcery.com>
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.
2010-05-25 14:12:43 +00:00
Alan Modra
aa820537ea update copyright dates 2009-09-02 07:25:43 +00:00
Nick Clifton
cd123cb70c Switch sources over to use the GPL version 3 2007-07-03 14:26:43 +00:00
Richard Sandiford
55e6e39790 bfd/
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.
2006-08-04 13:13:56 +00:00