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.

1 files changed, 154 insertions, 9 deletions

diff --git a/bfd/elf32-sh-relocs.h b/bfd/elf32-sh-relocs.h
index 70f3a7b8ae1..05f087562c2 100644
--- a/bfd/elf32-sh-relocs.h
+++ b/bfd/elf32-sh-relocs.h
@@ -1,4 +1,4 @@
-/* Copyright 2006, 2007 Free Software Foundation, Inc.
+/* Copyright 2006, 2007, 2010 Free Software Foundation, Inc.
 
    This file is part of BFD, the Binary File Descriptor library.
 
@@ -1462,19 +1462,164 @@
 	 0,			/* src_mask */
 	 ((bfd_vma) 0) - 1,	/* dst_mask */
 	 FALSE),		/* pcrel_offset */
+#else
+  EMPTY_HOWTO (169),
+  EMPTY_HOWTO (170),
+  EMPTY_HOWTO (171),
+  EMPTY_HOWTO (172),
+  EMPTY_HOWTO (173),
+  EMPTY_HOWTO (174),
+  EMPTY_HOWTO (175),
+  EMPTY_HOWTO (176),
+  EMPTY_HOWTO (177),
+  EMPTY_HOWTO (178),
+  EMPTY_HOWTO (179),
+  EMPTY_HOWTO (180),
+  EMPTY_HOWTO (181),
+  EMPTY_HOWTO (182),
+  EMPTY_HOWTO (183),
+  EMPTY_HOWTO (184),
+  EMPTY_HOWTO (185),
+  EMPTY_HOWTO (186),
+  EMPTY_HOWTO (187),
+  EMPTY_HOWTO (188),
+  EMPTY_HOWTO (189),
+  EMPTY_HOWTO (190),
+  EMPTY_HOWTO (191),
+  EMPTY_HOWTO (192),
+  EMPTY_HOWTO (193),
+  EMPTY_HOWTO (194),
+  EMPTY_HOWTO (195),
+  EMPTY_HOWTO (196),
+#endif
 
   EMPTY_HOWTO (197),
   EMPTY_HOWTO (198),
   EMPTY_HOWTO (199),
   EMPTY_HOWTO (200),
-  EMPTY_HOWTO (201),
-  EMPTY_HOWTO (202),
-  EMPTY_HOWTO (203),
-  EMPTY_HOWTO (204),
-  EMPTY_HOWTO (205),
-  EMPTY_HOWTO (206),
-  EMPTY_HOWTO (207),
-  EMPTY_HOWTO (208),
+
+  /* FDPIC-relative offset to a GOT entry, for movi20.  */
+  HOWTO (R_SH_GOT20,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 20,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_GOT20",		/* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0x00f0ffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* FDPIC-relative offset to a data object, for movi20.  */
+  HOWTO (R_SH_GOTOFF20,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 20,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_GOTOFF20",	/* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0x00f0ffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* FDPIC-relative offset to a GOT entry for a function descriptor.  */
+  HOWTO (R_SH_GOTFUNCDESC,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_GOTFUNCDESC",	/* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* FDPIC-relative offset to a GOT entry for a function descriptor,
+     for movi20.  */
+  HOWTO (R_SH_GOTFUNCDESC20,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 20,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_GOTFUNCDESC20",	/* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0x00f0ffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* FDPIC-relative offset to a function descriptor.  */
+  HOWTO (R_SH_GOTOFFFUNCDESC,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_GOTOFFFUNCDESC",	/* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* FDPIC-relative offset to a function descriptor, for movi20.  */
+  HOWTO (R_SH_GOTOFFFUNCDESC20,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 20,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_GOTOFFFUNCDESC20", /* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0x00f0ffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* Address of an official function descriptor.  */
+  HOWTO (R_SH_FUNCDESC,		/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 32,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_FUNCDESC",	/* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+  /* Function descriptor to be filled in by the dynamic linker.  */
+  HOWTO (R_SH_FUNCDESC_VALUE,	/* type */
+	 0,			/* rightshift */
+	 2,			/* size (0 = byte, 1 = short, 2 = long) */
+	 64,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_signed, /* complain_on_overflow */
+	 bfd_elf_generic_reloc,	/* special_function */
+	 "R_SH_FUNCDESC_VALUE", /* name */
+	 FALSE,			/* partial_inplace */
+	 0,			/* src_mask */
+	 0xffffffff,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
+
+#ifdef INCLUDE_SHMEDIA
   EMPTY_HOWTO (209),
   EMPTY_HOWTO (210),
   EMPTY_HOWTO (211),