diff options
Diffstat (limited to 'bfd/elf64-ia64.c')
| -rw-r--r-- | bfd/elf64-ia64.c | 4097 |
1 files changed, 0 insertions, 4097 deletions
diff --git a/bfd/elf64-ia64.c b/bfd/elf64-ia64.c deleted file mode 100644 index 2fafeb18b29..00000000000 --- a/bfd/elf64-ia64.c +++ /dev/null @@ -1,4097 +0,0 @@ -/* IA-64 support for 64-bit ELF - Copyright 1998, 1999, 2000 Free Software Foundation, Inc. - Contributed by David Mosberger-Tang <davidm@hpl.hp.com> - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "opcode/ia64.h" -#include "elf/ia64.h" - - -/* - * THE RULES for all the stuff the linker creates -- - * - * GOT Entries created in response to LTOFF or LTOFF_FPTR - * relocations. Dynamic relocs created for dynamic - * symbols in an application; REL relocs for locals - * in a shared library. - * - * FPTR The canonical function descriptor. Created for local - * symbols in applications. Descriptors for dynamic symbols - * and local symbols in shared libraries are created by - * ld.so. Thus there are no dynamic relocs against these - * objects. The FPTR relocs for such _are_ passed through - * to the dynamic relocation tables. - * - * FULL_PLT Created for a PCREL21B relocation against a dynamic symbol. - * Requires the creation of a PLTOFF entry. This does not - * require any dynamic relocations. - * - * PLTOFF Created by PLTOFF relocations. For local symbols, this - * is an alternate function descriptor, and in shared libraries - * requires two REL relocations. Note that this cannot be - * transformed into an FPTR relocation, since it must be in - * range of the GP. For dynamic symbols, this is a function - * descriptor for a MIN_PLT entry, and requires one IPLT reloc. - * - * MIN_PLT Created by PLTOFF entries against dynamic symbols. This - * does not reqire dynamic relocations. - */ - -#define USE_RELA /* we want RELA relocs, not REL */ - -#define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0]))) - -typedef struct bfd_hash_entry *(*new_hash_entry_func) - PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); - -/* In dynamically (linker-) created sections, we generally need to keep track - of the place a symbol or expression got allocated to. This is done via hash - tables that store entries of the following type. */ - -struct elf64_ia64_dyn_sym_info -{ - /* The addend for which this entry is relevant. */ - bfd_vma addend; - - /* Next addend in the list. */ - struct elf64_ia64_dyn_sym_info *next; - - bfd_vma got_offset; - bfd_vma fptr_offset; - bfd_vma pltoff_offset; - bfd_vma plt_offset; - bfd_vma plt2_offset; - - /* The symbol table entry, if any, that this was derrived from. */ - struct elf_link_hash_entry *h; - - /* Used to count non-got, non-plt relocations for delayed sizing - of relocation sections. */ - struct elf64_ia64_dyn_reloc_entry - { - struct elf64_ia64_dyn_reloc_entry *next; - asection *srel; - int type; - int count; - } *reloc_entries; - - /* True when the section contents have been updated. */ - unsigned got_done : 1; - unsigned fptr_done : 1; - unsigned pltoff_done : 1; - - /* True for the different kinds of linker data we want created. */ - unsigned want_got : 1; - unsigned want_fptr : 1; - unsigned want_ltoff_fptr : 1; - unsigned want_plt : 1; - unsigned want_plt2 : 1; - unsigned want_pltoff : 1; -}; - -struct elf64_ia64_local_hash_entry -{ - struct bfd_hash_entry root; - struct elf64_ia64_dyn_sym_info *info; -}; - -struct elf64_ia64_local_hash_table -{ - struct bfd_hash_table root; - /* No additional fields for now. */ -}; - -struct elf64_ia64_link_hash_entry -{ - struct elf_link_hash_entry root; - struct elf64_ia64_dyn_sym_info *info; -}; - -struct elf64_ia64_link_hash_table -{ - /* The main hash table */ - struct elf_link_hash_table root; - - asection *got_sec; /* the linkage table section (or NULL) */ - asection *rel_got_sec; /* dynamic relocation section for same */ - asection *fptr_sec; /* function descriptor table (or NULL) */ - asection *plt_sec; /* the primary plt section (or NULL) */ - asection *pltoff_sec; /* private descriptors for plt (or NULL) */ - asection *rel_pltoff_sec; /* dynamic relocation section for same */ - - bfd_size_type minplt_entries; /* number of minplt entries */ - - struct elf64_ia64_local_hash_table loc_hash_table; -}; - -#define elf64_ia64_hash_table(p) \ - ((struct elf64_ia64_link_hash_table *) ((p)->hash)) - -static bfd_reloc_status_type elf64_ia64_reloc - PARAMS ((bfd *abfd, arelent *reloc, asymbol *sym, PTR data, - asection *input_section, bfd *output_bfd, char **error_message)); -static reloc_howto_type * lookup_howto - PARAMS ((unsigned int rtype)); -static reloc_howto_type *elf64_ia64_reloc_type_lookup - PARAMS ((bfd *abfd, bfd_reloc_code_real_type bfd_code)); -static void elf64_ia64_info_to_howto - PARAMS ((bfd *abfd, arelent *bfd_reloc, Elf64_Internal_Rela *elf_reloc)); -static boolean elf64_ia64_relax_section - PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info, - boolean *again)); -static boolean elf64_ia64_section_from_shdr - PARAMS ((bfd *, Elf64_Internal_Shdr *, char *)); -static boolean elf64_ia64_fake_sections - PARAMS ((bfd *abfd, Elf64_Internal_Shdr *hdr, asection *sec)); -static boolean elf64_ia64_add_symbol_hook - PARAMS ((bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *sym, - const char **namep, flagword *flagsp, asection **secp, - bfd_vma *valp)); -static int elf64_ia64_additional_program_headers - PARAMS ((bfd *abfd)); -static boolean elf64_ia64_is_local_label_name - PARAMS ((bfd *abfd, const char *name)); -static boolean elf64_ia64_dynamic_symbol_p - PARAMS ((struct elf_link_hash_entry *h, struct bfd_link_info *info)); -static boolean elf64_ia64_local_hash_table_init - PARAMS ((struct elf64_ia64_local_hash_table *ht, bfd *abfd, - new_hash_entry_func new)); -static struct bfd_hash_entry *elf64_ia64_new_loc_hash_entry - PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table, - const char *string)); -static struct bfd_hash_entry *elf64_ia64_new_elf_hash_entry - PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table, - const char *string)); -static struct bfd_link_hash_table *elf64_ia64_hash_table_create - PARAMS ((bfd *abfd)); -static struct elf64_ia64_local_hash_entry *elf64_ia64_local_hash_lookup - PARAMS ((struct elf64_ia64_local_hash_table *table, const char *string, - boolean create, boolean copy)); -static void elf64_ia64_dyn_sym_traverse - PARAMS ((struct elf64_ia64_link_hash_table *ia64_info, - boolean (*func)(struct elf64_ia64_dyn_sym_info *, PTR), - PTR info)); -static boolean elf64_ia64_create_dynamic_sections - PARAMS ((bfd *abfd, struct bfd_link_info *info)); -static struct elf64_ia64_dyn_sym_info * get_dyn_sym_info - PARAMS ((struct elf64_ia64_link_hash_table *ia64_info, - struct elf_link_hash_entry *h, - bfd *abfd, const Elf_Internal_Rela *rel, boolean create)); -static asection *get_got - PARAMS ((bfd *abfd, struct bfd_link_info *info, - struct elf64_ia64_link_hash_table *ia64_info)); -static asection *get_fptr - PARAMS ((bfd *abfd, struct bfd_link_info *info, - struct elf64_ia64_link_hash_table *ia64_info)); -static asection *get_pltoff - PARAMS ((bfd *abfd, struct bfd_link_info *info, - struct elf64_ia64_link_hash_table *ia64_info)); -static asection *get_reloc_section - PARAMS ((bfd *abfd, struct elf64_ia64_link_hash_table *ia64_info, - asection *sec, boolean create)); -static boolean count_dyn_reloc - PARAMS ((bfd *abfd, struct elf64_ia64_dyn_sym_info *dyn_i, - asection *srel, int type)); -static boolean elf64_ia64_check_relocs - PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec, - const Elf_Internal_Rela *relocs)); -static boolean elf64_ia64_adjust_dynamic_symbol - PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h)); -static unsigned long global_sym_index - PARAMS ((struct elf_link_hash_entry *h)); -static boolean allocate_fptr - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean allocate_global_data_got - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean allocate_global_fptr_got - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean allocate_local_got - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean allocate_pltoff_entries - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean allocate_plt_entries - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean allocate_plt2_entries - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean allocate_dynrel_entries - PARAMS ((struct elf64_ia64_dyn_sym_info *dyn_i, PTR data)); -static boolean elf64_ia64_size_dynamic_sections - PARAMS ((bfd *output_bfd, struct bfd_link_info *info)); -static bfd_reloc_status_type elf64_ia64_install_value - PARAMS ((bfd *abfd, bfd_byte *hit_addr, bfd_vma val, unsigned int r_type)); -static void elf64_ia64_install_dyn_reloc - PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec, - asection *srel, bfd_vma offset, unsigned int type, - long dynindx, bfd_vma addend)); -static bfd_vma set_got_entry - PARAMS ((bfd *abfd, struct bfd_link_info *info, - struct elf64_ia64_dyn_sym_info *dyn_i, long dynindx, - bfd_vma addend, bfd_vma value, unsigned int dyn_r_type)); -static bfd_vma set_fptr_entry - PARAMS ((bfd *abfd, struct bfd_link_info *info, - struct elf64_ia64_dyn_sym_info *dyn_i, - bfd_vma value)); -static bfd_vma set_pltoff_entry - PARAMS ((bfd *abfd, struct bfd_link_info *info, - struct elf64_ia64_dyn_sym_info *dyn_i, - bfd_vma value, boolean)); -static boolean elf64_ia64_final_link - PARAMS ((bfd *abfd, struct bfd_link_info *info)); -static boolean elf64_ia64_relocate_section - PARAMS ((bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd, - asection *input_section, bfd_byte *contents, - Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, - asection **local_sections)); -static boolean elf64_ia64_finish_dynamic_symbol - PARAMS ((bfd *output_bfd, struct bfd_link_info *info, - struct elf_link_hash_entry *h, Elf_Internal_Sym *sym)); -static boolean elf64_ia64_finish_dynamic_sections - PARAMS ((bfd *abfd, struct bfd_link_info *info)); -static boolean elf64_ia64_set_private_flags - PARAMS ((bfd *abfd, flagword flags)); -static boolean elf64_ia64_copy_private_bfd_data - PARAMS ((bfd *ibfd, bfd *obfd)); -static boolean elf64_ia64_merge_private_bfd_data - PARAMS ((bfd *ibfd, bfd *obfd)); -static boolean elf64_ia64_print_private_bfd_data - PARAMS ((bfd *abfd, PTR ptr)); - - -/* ia64-specific relocation */ - -/* Perform a relocation. Not much to do here as all the hard work is - done in elf64_ia64_final_link_relocate. */ -static bfd_reloc_status_type -elf64_ia64_reloc (abfd, reloc, sym, data, input_section, - output_bfd, error_message) - bfd *abfd; - arelent *reloc; - asymbol *sym; - PTR data; - asection *input_section; - bfd *output_bfd; - char **error_message; -{ - if (output_bfd) - { - reloc->address += input_section->output_offset; - return bfd_reloc_ok; - } - *error_message = "Unsupported call to elf64_ia64_reloc"; - return bfd_reloc_notsupported; -} - -#define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \ - HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \ - elf64_ia64_reloc, NAME, false, 0, 0, IN) - -/* This table has to be sorted according to increasing number of the - TYPE field. */ -static reloc_howto_type ia64_howto_table[] = - { - IA64_HOWTO (R_IA64_NONE, "NONE", 0, false, true), - - IA64_HOWTO (R_IA64_IMM14, "IMM14", 0, false, true), - IA64_HOWTO (R_IA64_IMM22, "IMM22", 0, false, true), - IA64_HOWTO (R_IA64_IMM64, "IMM64", 0, false, true), - IA64_HOWTO (R_IA64_DIR32MSB, "DIR32MSB", 2, false, true), - IA64_HOWTO (R_IA64_DIR32LSB, "DIR32LSB", 2, false, true), - IA64_HOWTO (R_IA64_DIR64MSB, "DIR64MSB", 4, false, true), - IA64_HOWTO (R_IA64_DIR64LSB, "DIR64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_GPREL22, "GPREL22", 0, false, true), - IA64_HOWTO (R_IA64_GPREL64I, "GPREL64I", 0, false, true), - IA64_HOWTO (R_IA64_GPREL32MSB, "GPREL32MSB", 2, false, true), - IA64_HOWTO (R_IA64_GPREL32LSB, "GPREL32LSB", 2, false, true), - IA64_HOWTO (R_IA64_GPREL64MSB, "GPREL64MSB", 4, false, true), - IA64_HOWTO (R_IA64_GPREL64LSB, "GPREL64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_LTOFF22, "LTOFF22", 0, false, true), - IA64_HOWTO (R_IA64_LTOFF64I, "LTOFF64I", 0, false, true), - - IA64_HOWTO (R_IA64_PLTOFF22, "PLTOFF22", 0, false, true), - IA64_HOWTO (R_IA64_PLTOFF64I, "PLTOFF64I", 0, false, true), - IA64_HOWTO (R_IA64_PLTOFF64MSB, "PLTOFF64MSB", 4, false, true), - IA64_HOWTO (R_IA64_PLTOFF64LSB, "PLTOFF64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_FPTR64I, "FPTR64I", 0, false, true), - IA64_HOWTO (R_IA64_FPTR32MSB, "FPTR32MSB", 2, false, true), - IA64_HOWTO (R_IA64_FPTR32LSB, "FPTR32LSB", 2, false, true), - IA64_HOWTO (R_IA64_FPTR64MSB, "FPTR64MSB", 4, false, true), - IA64_HOWTO (R_IA64_FPTR64LSB, "FPTR64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_PCREL60B, "PCREL60B", 0, true, true), - IA64_HOWTO (R_IA64_PCREL21B, "PCREL21B", 0, true, true), - IA64_HOWTO (R_IA64_PCREL21M, "PCREL21M", 0, true, true), - IA64_HOWTO (R_IA64_PCREL21F, "PCREL21F", 0, true, true), - IA64_HOWTO (R_IA64_PCREL32MSB, "PCREL32MSB", 2, true, true), - IA64_HOWTO (R_IA64_PCREL32LSB, "PCREL32LSB", 2, true, true), - IA64_HOWTO (R_IA64_PCREL64MSB, "PCREL64MSB", 4, true, true), - IA64_HOWTO (R_IA64_PCREL64LSB, "PCREL64LSB", 4, true, true), - - IA64_HOWTO (R_IA64_LTOFF_FPTR22, "LTOFF_FPTR22", 0, false, true), - IA64_HOWTO (R_IA64_LTOFF_FPTR64I, "LTOFF_FPTR64I", 0, false, true), - IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB, "LTOFF_FPTR64MSB", 4, false, true), - IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB, "LTOFF_FPTR64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_SEGBASE, "SEGBASE", 4, false, true), - IA64_HOWTO (R_IA64_SEGREL32MSB, "SEGREL32MSB", 2, false, true), - IA64_HOWTO (R_IA64_SEGREL32LSB, "SEGREL32LSB", 2, false, true), - IA64_HOWTO (R_IA64_SEGREL64MSB, "SEGREL64MSB", 4, false, true), - IA64_HOWTO (R_IA64_SEGREL64LSB, "SEGREL64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_SECREL32MSB, "SECREL32MSB", 2, false, true), - IA64_HOWTO (R_IA64_SECREL32LSB, "SECREL32LSB", 2, false, true), - IA64_HOWTO (R_IA64_SECREL64MSB, "SECREL64MSB", 4, false, true), - IA64_HOWTO (R_IA64_SECREL64LSB, "SECREL64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_REL32MSB, "REL32MSB", 2, false, true), - IA64_HOWTO (R_IA64_REL32LSB, "REL32LSB", 2, false, true), - IA64_HOWTO (R_IA64_REL64MSB, "REL64MSB", 4, false, true), - IA64_HOWTO (R_IA64_REL64LSB, "REL64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_LTV32MSB, "LTV32MSB", 2, false, true), - IA64_HOWTO (R_IA64_LTV32LSB, "LTV32LSB", 2, false, true), - IA64_HOWTO (R_IA64_LTV64MSB, "LTV64MSB", 4, false, true), - IA64_HOWTO (R_IA64_LTV64LSB, "LTV64LSB", 4, false, true), - - IA64_HOWTO (R_IA64_PCREL21BI, "PCREL21BI", 0, true, true), - IA64_HOWTO (R_IA64_PCREL22, "PCREL22", 0, true, true), - IA64_HOWTO (R_IA64_PCREL64I, "PCREL64I", 0, true, true), - - IA64_HOWTO (R_IA64_IPLTMSB, "IPLTMSB", 4, false, true), - IA64_HOWTO (R_IA64_IPLTLSB, "IPLTLSB", 4, false, true), - IA64_HOWTO (R_IA64_EPLTMSB, "EPLTMSB", 4, false, true), - IA64_HOWTO (R_IA64_EPLTLSB, "EPLTLSB", 4, false, true), - IA64_HOWTO (R_IA64_COPY, "COPY", 4, false, true), - IA64_HOWTO (R_IA64_LTOFF22X, "LTOFF22X", 0, false, true), - IA64_HOWTO (R_IA64_LDXMOV, "LDXMOV", 0, false, true), - - IA64_HOWTO (R_IA64_TPREL22, "TPREL22", 0, false, false), - IA64_HOWTO (R_IA64_TPREL64MSB, "TPREL64MSB", 8, false, false), - IA64_HOWTO (R_IA64_TPREL64LSB, "TPREL64LSB", 8, false, false), - IA64_HOWTO (R_IA64_LTOFF_TP22, "LTOFF_TP22", 0, false, false), - }; - -static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1]; - -/* Given a BFD reloc type, return the matching HOWTO structure. */ - -static reloc_howto_type* -lookup_howto (rtype) - unsigned int rtype; -{ - static int inited = 0; - int i; - - if (!inited) - { - inited = 1; - - memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index)); - for (i = 0; i < NELEMS (ia64_howto_table); ++i) - elf_code_to_howto_index[ia64_howto_table[i].type] = i; - } - - BFD_ASSERT (rtype <= R_IA64_MAX_RELOC_CODE); - i = elf_code_to_howto_index[rtype]; - if (i >= NELEMS (ia64_howto_table)) - return 0; - return ia64_howto_table + i; -} - -static reloc_howto_type* -elf64_ia64_reloc_type_lookup (abfd, bfd_code) - bfd *abfd; - bfd_reloc_code_real_type bfd_code; -{ - unsigned int rtype; - - switch (bfd_code) - { - case BFD_RELOC_NONE: rtype = R_IA64_NONE; break; - - case BFD_RELOC_IA64_IMM14: rtype = R_IA64_IMM14; break; - case BFD_RELOC_IA64_IMM22: rtype = R_IA64_IMM22; break; - case BFD_RELOC_IA64_IMM64: rtype = R_IA64_IMM64; break; - - case BFD_RELOC_IA64_DIR32MSB: rtype = R_IA64_DIR32MSB; break; - case BFD_RELOC_IA64_DIR32LSB: rtype = R_IA64_DIR32LSB; break; - case BFD_RELOC_IA64_DIR64MSB: rtype = R_IA64_DIR64MSB; break; - case BFD_RELOC_IA64_DIR64LSB: rtype = R_IA64_DIR64LSB; break; - - case BFD_RELOC_IA64_GPREL22: rtype = R_IA64_GPREL22; break; - case BFD_RELOC_IA64_GPREL64I: rtype = R_IA64_GPREL64I; break; - case BFD_RELOC_IA64_GPREL32MSB: rtype = R_IA64_GPREL32MSB; break; - case BFD_RELOC_IA64_GPREL32LSB: rtype = R_IA64_GPREL32LSB; break; - case BFD_RELOC_IA64_GPREL64MSB: rtype = R_IA64_GPREL64MSB; break; - case BFD_RELOC_IA64_GPREL64LSB: rtype = R_IA64_GPREL64LSB; break; - - case BFD_RELOC_IA64_LTOFF22: rtype = R_IA64_LTOFF22; break; - case BFD_RELOC_IA64_LTOFF64I: rtype = R_IA64_LTOFF64I; break; - - case BFD_RELOC_IA64_PLTOFF22: rtype = R_IA64_PLTOFF22; break; - case BFD_RELOC_IA64_PLTOFF64I: rtype = R_IA64_PLTOFF64I; break; - case BFD_RELOC_IA64_PLTOFF64MSB: rtype = R_IA64_PLTOFF64MSB; break; - case BFD_RELOC_IA64_PLTOFF64LSB: rtype = R_IA64_PLTOFF64LSB; break; - case BFD_RELOC_IA64_FPTR64I: rtype = R_IA64_FPTR64I; break; - case BFD_RELOC_IA64_FPTR32MSB: rtype = R_IA64_FPTR32MSB; break; - case BFD_RELOC_IA64_FPTR32LSB: rtype = R_IA64_FPTR32LSB; break; - case BFD_RELOC_IA64_FPTR64MSB: rtype = R_IA64_FPTR64MSB; break; - case BFD_RELOC_IA64_FPTR64LSB: rtype = R_IA64_FPTR64LSB; break; - - case BFD_RELOC_IA64_PCREL21B: rtype = R_IA64_PCREL21B; break; - case BFD_RELOC_IA64_PCREL21BI: rtype = R_IA64_PCREL21BI; break; - case BFD_RELOC_IA64_PCREL21M: rtype = R_IA64_PCREL21M; break; - case BFD_RELOC_IA64_PCREL21F: rtype = R_IA64_PCREL21F; break; - case BFD_RELOC_IA64_PCREL22: rtype = R_IA64_PCREL22; break; - case BFD_RELOC_IA64_PCREL60B: rtype = R_IA64_PCREL60B; break; - case BFD_RELOC_IA64_PCREL64I: rtype = R_IA64_PCREL64I; break; - case BFD_RELOC_IA64_PCREL32MSB: rtype = R_IA64_PCREL32MSB; break; - case BFD_RELOC_IA64_PCREL32LSB: rtype = R_IA64_PCREL32LSB; break; - case BFD_RELOC_IA64_PCREL64MSB: rtype = R_IA64_PCREL64MSB; break; - case BFD_RELOC_IA64_PCREL64LSB: rtype = R_IA64_PCREL64LSB; break; - - case BFD_RELOC_IA64_LTOFF_FPTR22: rtype = R_IA64_LTOFF_FPTR22; break; - case BFD_RELOC_IA64_LTOFF_FPTR64I: rtype = R_IA64_LTOFF_FPTR64I; break; - case BFD_RELOC_IA64_LTOFF_FPTR64MSB: rtype = R_IA64_LTOFF_FPTR64MSB; break; - case BFD_RELOC_IA64_LTOFF_FPTR64LSB: rtype = R_IA64_LTOFF_FPTR64LSB; break; - - case BFD_RELOC_IA64_SEGBASE: rtype = R_IA64_SEGBASE; break; - case BFD_RELOC_IA64_SEGREL32MSB: rtype = R_IA64_SEGREL32MSB; break; - case BFD_RELOC_IA64_SEGREL32LSB: rtype = R_IA64_SEGREL32LSB; break; - case BFD_RELOC_IA64_SEGREL64MSB: rtype = R_IA64_SEGREL64MSB; break; - case BFD_RELOC_IA64_SEGREL64LSB: rtype = R_IA64_SEGREL64LSB; break; - - case BFD_RELOC_IA64_SECREL32MSB: rtype = R_IA64_SECREL32MSB; break; - case BFD_RELOC_IA64_SECREL32LSB: rtype = R_IA64_SECREL32LSB; break; - case BFD_RELOC_IA64_SECREL64MSB: rtype = R_IA64_SECREL64MSB; break; - case BFD_RELOC_IA64_SECREL64LSB: rtype = R_IA64_SECREL64LSB; break; - - case BFD_RELOC_IA64_REL32MSB: rtype = R_IA64_REL32MSB; break; - case BFD_RELOC_IA64_REL32LSB: rtype = R_IA64_REL32LSB; break; - case BFD_RELOC_IA64_REL64MSB: rtype = R_IA64_REL64MSB; break; - case BFD_RELOC_IA64_REL64LSB: rtype = R_IA64_REL64LSB; break; - - case BFD_RELOC_IA64_LTV32MSB: rtype = R_IA64_LTV32MSB; break; - case BFD_RELOC_IA64_LTV32LSB: rtype = R_IA64_LTV32LSB; break; - case BFD_RELOC_IA64_LTV64MSB: rtype = R_IA64_LTV64MSB; break; - case BFD_RELOC_IA64_LTV64LSB: rtype = R_IA64_LTV64LSB; break; - - case BFD_RELOC_IA64_IPLTMSB: rtype = R_IA64_IPLTMSB; break; - case BFD_RELOC_IA64_IPLTLSB: rtype = R_IA64_IPLTLSB; break; - case BFD_RELOC_IA64_EPLTMSB: rtype = R_IA64_EPLTMSB; break; - case BFD_RELOC_IA64_EPLTLSB: rtype = R_IA64_EPLTLSB; break; - case BFD_RELOC_IA64_COPY: rtype = R_IA64_COPY; break; - case BFD_RELOC_IA64_LTOFF22X: rtype = R_IA64_LTOFF22X; break; - case BFD_RELOC_IA64_LDXMOV: rtype = R_IA64_LDXMOV; break; - - case BFD_RELOC_IA64_TPREL22: rtype = R_IA64_TPREL22; break; - case BFD_RELOC_IA64_TPREL64MSB: rtype = R_IA64_TPREL64MSB; break; - case BFD_RELOC_IA64_TPREL64LSB: rtype = R_IA64_TPREL64LSB; break; - case BFD_RELOC_IA64_LTOFF_TP22: rtype = R_IA64_LTOFF_TP22; break; - - default: return 0; - } - return lookup_howto (rtype); -} - -/* Given a ELF reloc, return the matching HOWTO structure. */ - -static void -elf64_ia64_info_to_howto (abfd, bfd_reloc, elf_reloc) - bfd *abfd; - arelent *bfd_reloc; - Elf64_Internal_Rela *elf_reloc; -{ - bfd_reloc->howto = lookup_howto (ELF64_R_TYPE (elf_reloc->r_info)); -} - -#define PLT_HEADER_SIZE (3 * 16) -#define PLT_MIN_ENTRY_SIZE (1 * 16) -#define PLT_FULL_ENTRY_SIZE (2 * 16) -#define PLT_RESERVED_WORDS 3 - -static const bfd_byte plt_header[PLT_HEADER_SIZE] = -{ - 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */ - 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */ - 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */ - 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */ - 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */ - 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */ - 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */ - 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */ - 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */ -}; - -static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] = -{ - 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */ - 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */ - 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */ -}; - -static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] = -{ - 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */ - 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0, /* ld8 r16=[r15],8 */ - 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */ - 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */ - 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */ - 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */ -}; - -#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" - -/* Select out of range branch fixup type. Note that Itanium does - not support brl, and so it gets emulated by the kernel. */ -#undef USE_BRL - -static const bfd_byte oor_brl[16] = -{ - 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */ - 0x00, 0x00, 0x00, 0xc0 -}; - -static const bfd_byte oor_ip[48] = -{ - 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */ - 0x01, 0x00, 0x00, 0x60, - 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */ - 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */ - 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */ - 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */ - 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */ - 0x60, 0x00, 0x80, 0x00 /* br b6;; */ -}; - -/* These functions do relaxation for IA-64 ELF. - - This is primarily to support branches to targets out of range; - relaxation of R_IA64_LTOFF22X and R_IA64_LDXMOV not yet supported. */ - -static boolean -elf64_ia64_relax_section (abfd, sec, link_info, again) - bfd *abfd; - asection *sec; - struct bfd_link_info *link_info; - boolean *again; -{ - struct one_fixup - { - struct one_fixup *next; - asection *tsec; - bfd_vma toff; - bfd_vma trampoff; - }; - - Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Rela *internal_relocs; - Elf_Internal_Rela *free_relocs; - Elf_Internal_Rela *irel, *irelend; - bfd_byte *contents; - bfd_byte *free_contents; - Elf64_External_Sym *extsyms; - Elf64_External_Sym *free_extsyms; - struct elf64_ia64_link_hash_table *ia64_info; - struct one_fixup *fixups = NULL; - boolean changed_contents = false; - boolean changed_relocs = false; - - /* Assume we're not going to change any sizes, and we we'll only - need one pass. */ - *again = false; - - /* Nothing to do if there are no relocations. */ - if ((sec->flags & SEC_RELOC) == 0 - || sec->reloc_count == 0) - return true; - - /* If this is the first time we have been called for this section, - initialize the cooked size. */ - if (sec->_cooked_size == 0) - sec->_cooked_size = sec->_raw_size; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - - /* Load the relocations for this section. */ - internal_relocs = (_bfd_elf64_link_read_relocs - (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, - link_info->keep_memory)); - if (internal_relocs == NULL) - goto error_return; - free_relocs = NULL; - if (! link_info->keep_memory) - free_relocs = internal_relocs; - - ia64_info = elf64_ia64_hash_table (link_info); - irelend = internal_relocs + sec->reloc_count; - - for (irel = internal_relocs; irel < irelend; irel++) - if (ELF64_R_TYPE (irel->r_info) == (int) R_IA64_PCREL21B) - break; - - /* No branch-type relocations. */ - if (irel == irelend) - { - if (free_relocs != NULL) - free (free_relocs); - return true; - } - - /* Get the section contents. */ - free_contents = NULL; - if (elf_section_data (sec)->this_hdr.contents != NULL) - contents = elf_section_data (sec)->this_hdr.contents; - else - { - contents = (bfd_byte *) bfd_malloc (sec->_raw_size); - if (contents == NULL) - goto error_return; - free_contents = contents; - - if (! bfd_get_section_contents (abfd, sec, contents, - (file_ptr) 0, sec->_raw_size)) - goto error_return; - } - - /* Read this BFD's symbols. */ - free_extsyms = NULL; - if (symtab_hdr->contents != NULL) - extsyms = (Elf64_External_Sym *) symtab_hdr->contents; - else - { - extsyms = (Elf64_External_Sym *) bfd_malloc (symtab_hdr->sh_size); - if (extsyms == NULL) - goto error_return; - free_extsyms = extsyms; - if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd) - != symtab_hdr->sh_size)) - goto error_return; - } - - for (; irel < irelend; irel++) - { - bfd_vma symaddr, reladdr, trampoff, toff, roff; - Elf_Internal_Sym isym; - asection *tsec; - struct one_fixup *f; - - if (ELF64_R_TYPE (irel->r_info) != (int) R_IA64_PCREL21B) - continue; - - /* Get the value of the symbol referred to by the reloc. */ - if (ELF64_R_SYM (irel->r_info) < symtab_hdr->sh_info) - { - /* A local symbol. */ - bfd_elf64_swap_symbol_in (abfd, - extsyms + ELF64_R_SYM (irel->r_info), - &isym); - if (isym.st_shndx == SHN_UNDEF) - continue; /* We can't do anthing with undefined symbols. */ - else if (isym.st_shndx == SHN_ABS) - tsec = bfd_abs_section_ptr; - else if (isym.st_shndx == SHN_COMMON) - tsec = bfd_com_section_ptr; - else if (isym.st_shndx > 0 && isym.st_shndx < SHN_LORESERVE) - tsec = bfd_section_from_elf_index (abfd, isym.st_shndx); - else - continue; /* who knows. */ - - toff = isym.st_value; - } - else - { - unsigned long indx; - struct elf_link_hash_entry *h; - struct elf64_ia64_dyn_sym_info *dyn_i; - - indx = ELF64_R_SYM (irel->r_info) - symtab_hdr->sh_info; - h = elf_sym_hashes (abfd)[indx]; - BFD_ASSERT (h != NULL); - - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, false); - - /* For branches to dynamic symbols, we're interested instead - in a branch to the PLT entry. */ - if (dyn_i && dyn_i->want_plt2) - { - tsec = ia64_info->plt_sec; - toff = dyn_i->plt2_offset; - } - else - { - /* We can't do anthing with undefined symbols. */ - if (h->root.type == bfd_link_hash_undefined - || h->root.type == bfd_link_hash_undefweak) - continue; - - tsec = h->root.u.def.section; - toff = h->root.u.def.value; - } - } - - symaddr = (tsec->output_section->vma - + tsec->output_offset - + toff - + irel->r_addend); - - roff = irel->r_offset; - reladdr = (sec->output_section->vma - + sec->output_offset - + roff) & -4; - - /* If the branch is in range, no need to do anything. */ - if ((bfd_signed_vma) (symaddr - reladdr) >= -0x1000000 - && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0) - continue; - - /* If the branch and target are in the same section, you've - got one honking big section and we can't help you. You'll - get an error message later. */ - if (tsec == sec) - continue; - - /* Look for an existing fixup to this address. */ - for (f = fixups; f ; f = f->next) - if (f->tsec == tsec && f->toff == toff) - break; - - if (f == NULL) - { - /* Two alternatives: If it's a branch to a PLT entry, we can - make a copy of the FULL_PLT entry. Otherwise, we'll have - to use a `brl' insn to get where we're going. */ - - int size; - - if (tsec == ia64_info->plt_sec) - size = sizeof (plt_full_entry); - else - { -#ifdef USE_BRL - size = sizeof (oor_brl); -#else - size = sizeof (oor_ip); -#endif - } - - /* Resize the current section to make room for the new branch. */ - trampoff = (sec->_cooked_size + 15) & -16; - contents = (bfd_byte *) bfd_realloc (contents, trampoff + size); - if (contents == NULL) - goto error_return; - sec->_cooked_size = trampoff + size; - - if (tsec == ia64_info->plt_sec) - { - memcpy (contents + trampoff, plt_full_entry, size); - - /* Hijack the old relocation for use as the PLTOFF reloc. */ - irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), - R_IA64_PLTOFF22); - irel->r_offset = trampoff; - } - else - { -#ifdef USE_BRL - memcpy (contents + trampoff, oor_brl, size); - irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), - R_IA64_PCREL60B); - irel->r_offset = trampoff + 2; -#else - memcpy (contents + trampoff, oor_ip, size); - irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), - R_IA64_PCREL64I); - irel->r_addend -= 16; - irel->r_offset = trampoff + 2; -#endif - } - - /* Record the fixup so we don't do it again this section. */ - f = (struct one_fixup *) bfd_malloc (sizeof (*f)); - f->next = fixups; - f->tsec = tsec; - f->toff = toff; - f->trampoff = trampoff; - fixups = f; - } - else - { - /* Nop out the reloc, since we're finalizing things here. */ - irel->r_info = ELF64_R_INFO (0, R_IA64_NONE); - } - - /* Fix up the existing branch to hit the trampoline. Hope like - hell this doesn't overflow too. */ - if (elf64_ia64_install_value (abfd, contents + roff, - f->trampoff - (roff & -4), - R_IA64_PCREL21B) != bfd_reloc_ok) - goto error_return; - - changed_contents = true; - changed_relocs = true; - } - - /* Clean up and go home. */ - while (fixups) - { - struct one_fixup *f = fixups; - fixups = fixups->next; - free (f); - } - - if (changed_relocs) - elf_section_data (sec)->relocs = internal_relocs; - else if (free_relocs != NULL) - free (free_relocs); - - if (changed_contents) - elf_section_data (sec)->this_hdr.contents = contents; - else if (free_contents != NULL) - { - if (! link_info->keep_memory) - free (free_contents); - else - { - /* Cache the section contents for elf_link_input_bfd. */ - elf_section_data (sec)->this_hdr.contents = contents; - } - } - - if (free_extsyms != NULL) - { - if (! link_info->keep_memory) - free (free_extsyms); - else - { - /* Cache the symbols for elf_link_input_bfd. */ - symtab_hdr->contents = extsyms; - } - } - - *again = changed_contents || changed_relocs; - return true; - - error_return: - if (free_relocs != NULL) - free (free_relocs); - if (free_contents != NULL) - free (free_contents); - if (free_extsyms != NULL) - free (free_extsyms); - return false; -} - -/* Handle an IA-64 specific section when reading an object file. This - is called when elfcode.h finds a section with an unknown type. */ - -static boolean -elf64_ia64_section_from_shdr (abfd, hdr, name) - bfd *abfd; - Elf64_Internal_Shdr *hdr; - char *name; -{ - asection *newsect; - - /* There ought to be a place to keep ELF backend specific flags, but - at the moment there isn't one. We just keep track of the - sections by their name, instead. Fortunately, the ABI gives - suggested names for all the MIPS specific sections, so we will - probably get away with this. */ - switch (hdr->sh_type) - { - case SHT_IA_64_UNWIND: - if (strcmp (name, ELF_STRING_ia64_unwind) != 0) - return false; - break; - - case SHT_IA_64_EXT: - if (strcmp (name, ELF_STRING_ia64_archext) != 0) - return false; - break; - - default: - return false; - } - - if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name)) - return false; - newsect = hdr->bfd_section; - - if (hdr->sh_flags & SHF_IA_64_SHORT) - newsect->flags |= SEC_SMALL_DATA; - - return true; -} - -/* Set the correct type for an IA-64 ELF section. We do this by the - section name, which is a hack, but ought to work. */ - -static boolean -elf64_ia64_fake_sections (abfd, hdr, sec) - bfd *abfd; - Elf64_Internal_Shdr *hdr; - asection *sec; -{ - register const char *name; - - name = bfd_get_section_name (abfd, sec); - - if (strcmp (name, ELF_STRING_ia64_unwind) == 0) - hdr->sh_type = SHT_IA_64_UNWIND; - else if (strcmp (name, ELF_STRING_ia64_archext) == 0) - hdr->sh_type = SHT_IA_64_EXT; - else if (strcmp (name, ".reloc") == 0) - /* - * This is an ugly, but unfortunately necessary hack that is - * needed when producing EFI binaries on IA-64. It tells - * elf.c:elf_fake_sections() not to consider ".reloc" as a section - * containing ELF relocation info. We need this hack in order to - * be able to generate ELF binaries that can be translated into - * EFI applications (which are essentially COFF objects). Those - * files contain a COFF ".reloc" section inside an ELF64 object, - * which would normally cause BFD to segfault because it would - * attempt to interpret this section as containing relocation - * entries for section "oc". With this hack enabled, ".reloc" - * will be treated as a normal data section, which will avoid the - * segfault. However, you won't be able to create an ELF64 binary - * with a section named "oc" that needs relocations, but that's - * the kind of ugly side-effects you get when detecting section - * types based on their names... In practice, this limitation is - * unlikely to bite. - */ - hdr->sh_type = SHT_PROGBITS; - - if (sec->flags & SEC_SMALL_DATA) - hdr->sh_flags |= SHF_IA_64_SHORT; - - return true; -} - -/* Hook called by the linker routine which adds symbols from an object - file. We use it to put .comm items in .sbss, and not .bss. */ - -static boolean -elf64_ia64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) - bfd *abfd; - struct bfd_link_info *info; - const Elf_Internal_Sym *sym; - const char **namep; - flagword *flagsp; - asection **secp; - bfd_vma *valp; -{ - if (sym->st_shndx == SHN_COMMON - && !info->relocateable - && sym->st_size <= bfd_get_gp_size (abfd)) - { - /* Common symbols less than or equal to -G nn bytes are - automatically put into .sbss. */ - - asection *scomm = bfd_get_section_by_name (abfd, ".scommon"); - - if (scomm == NULL) - { - scomm = bfd_make_section (abfd, ".scommon"); - if (scomm == NULL - || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC - | SEC_IS_COMMON - | SEC_LINKER_CREATED))) - return false; - } - - *secp = scomm; - *valp = sym->st_size; - } - - return true; -} - -/* Return the number of additional phdrs we will need. */ - -static int -elf64_ia64_additional_program_headers (abfd) - bfd *abfd; -{ - asection *s; - int ret = 0; - - /* See if we need a PT_IA_64_ARCHEXT segment. */ - s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext); - if (s && (s->flags & SEC_LOAD)) - ++ret; - - /* See if we need a PT_IA_64_UNWIND segment. */ - s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind); - if (s && (s->flags & SEC_LOAD)) - ++ret; - - return ret; -} - -static boolean -elf64_ia64_modify_segment_map (abfd) - bfd *abfd; -{ - struct elf_segment_map *m, **pm; - asection *s; - - /* If we need a PT_IA_64_ARCHEXT segment, it must come before - all PT_LOAD segments. */ - s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext); - if (s && (s->flags & SEC_LOAD)) - { - for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) - if (m->p_type == PT_IA_64_ARCHEXT) - break; - if (m == NULL) - { - m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m); - if (m == NULL) - return false; - - m->p_type = PT_IA_64_ARCHEXT; - m->count = 1; - m->sections[0] = s; - - /* We want to put it after the PHDR and INTERP segments. */ - pm = &elf_tdata (abfd)->segment_map; - while (*pm != NULL - && ((*pm)->p_type == PT_PHDR - || (*pm)->p_type == PT_INTERP)) - pm = &(*pm)->next; - - m->next = *pm; - *pm = m; - } - } - - /* Install the PT_IA_64_UNWIND segment, if needed. */ - s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind); - if (s && (s->flags & SEC_LOAD)) - { - for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) - if (m->p_type == PT_IA_64_UNWIND) - break; - if (m == NULL) - { - m = (struct elf_segment_map *) bfd_zalloc (abfd, sizeof *m); - if (m == NULL) - return false; - - m->p_type = PT_IA_64_UNWIND; - m->count = 1; - m->sections[0] = s; - m->next = NULL; - - /* We want to put it last. */ - pm = &elf_tdata (abfd)->segment_map; - while (*pm != NULL) - pm = &(*pm)->next; - *pm = m; - } - } - - /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of - the input sections for each output section in the segment and testing - for SHF_IA_64_NORECOV on each. */ - for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next) - if (m->p_type == PT_LOAD) - { - int i; - for (i = m->count - 1; i >= 0; --i) - { - struct bfd_link_order *order = m->sections[i]->link_order_head; - while (order) - { - if (order->type == bfd_indirect_link_order) - { - asection *is = order->u.indirect.section; - bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags; - if (flags & SHF_IA_64_NORECOV) - { - m->p_flags |= PF_IA_64_NORECOV; - goto found; - } - } - order = order->next; - } - } - found:; - } - - return true; -} - - -/* According to the Tahoe assembler spec, all labels starting with a - '.' are local. */ - -static boolean -elf64_ia64_is_local_label_name (abfd, name) - bfd *abfd; - const char *name; -{ - return name[0] == '.'; -} - -/* Should we do dynamic things to this symbol? */ - -static boolean -elf64_ia64_dynamic_symbol_p (h, info) - struct elf_link_hash_entry *h; - struct bfd_link_info *info; -{ - if (h == NULL) - return false; - - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - if (h->dynindx == -1) - return false; - - if (h->root.type == bfd_link_hash_undefweak - || h->root.type == bfd_link_hash_defweak) - return true; - - if ((info->shared && !info->symbolic) - || ((h->elf_link_hash_flags - & (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)) - == (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR))) - return true; - - return false; -} - -static boolean -elf64_ia64_local_hash_table_init (ht, abfd, new) - struct elf64_ia64_local_hash_table *ht; - bfd *abfd; - new_hash_entry_func new; -{ - memset (ht, 0, sizeof(*ht)); - return bfd_hash_table_init (&ht->root, new); -} - -static struct bfd_hash_entry* -elf64_ia64_new_loc_hash_entry (entry, table, string) - struct bfd_hash_entry *entry; - struct bfd_hash_table *table; - const char *string; -{ - struct elf64_ia64_local_hash_entry *ret; - ret = (struct elf64_ia64_local_hash_entry *) entry; - - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (!ret) - ret = bfd_hash_allocate (table, sizeof (*ret)); - - if (!ret) - return 0; - - /* Initialize our local data. All zeros, and definitely easier - than setting a handful of bit fields. */ - memset (ret, 0, sizeof(*ret)); - - /* Call the allocation method of the superclass. */ - ret = ((struct elf64_ia64_local_hash_entry *) - bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); - - return (struct bfd_hash_entry *) ret; -} - -static struct bfd_hash_entry* -elf64_ia64_new_elf_hash_entry (entry, table, string) - struct bfd_hash_entry *entry; - struct bfd_hash_table *table; - const char *string; -{ - struct elf64_ia64_link_hash_entry *ret; - ret = (struct elf64_ia64_link_hash_entry *) entry; - - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (!ret) - ret = bfd_hash_allocate (table, sizeof (*ret)); - - if (!ret) - return 0; - - /* Initialize our local data. All zeros, and definitely easier - than setting a handful of bit fields. */ - memset (ret, 0, sizeof(*ret)); - - /* Call the allocation method of the superclass. */ - ret = ((struct elf64_ia64_link_hash_entry *) - _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, - table, string)); - - return (struct bfd_hash_entry *) ret; -} - -static void -elf64_ia64_hash_copy_indirect (xdir, xind) - struct elf_link_hash_entry *xdir, *xind; -{ - struct elf64_ia64_link_hash_entry *dir, *ind; - - dir = (struct elf64_ia64_link_hash_entry *)xdir; - ind = (struct elf64_ia64_link_hash_entry *)xind; - - /* Copy down any references that we may have already seen to the - symbol which just became indirect. */ - - dir->root.elf_link_hash_flags |= - (ind->root.elf_link_hash_flags - & (ELF_LINK_HASH_REF_DYNAMIC - | ELF_LINK_HASH_REF_REGULAR - | ELF_LINK_HASH_REF_REGULAR_NONWEAK)); - - /* Copy over the got and plt data. This would have been done - by check_relocs. */ - - if (dir->info == NULL) - { - struct elf64_ia64_dyn_sym_info *dyn_i; - - dir->info = dyn_i = ind->info; - ind->info = NULL; - - /* Fix up the dyn_sym_info pointers to the global symbol. */ - for (; dyn_i; dyn_i = dyn_i->next) - dyn_i->h = &dir->root; - } - BFD_ASSERT (ind->info == NULL); - - /* Copy over the dynindx. */ - - if (dir->root.dynindx == -1) - { - dir->root.dynindx = ind->root.dynindx; - dir->root.dynstr_index = ind->root.dynstr_index; - ind->root.dynindx = -1; - ind->root.dynstr_index = 0; - } - BFD_ASSERT (ind->root.dynindx == -1); -} - -static void -elf64_ia64_hash_hide_symbol (xh) - struct elf_link_hash_entry *xh; -{ - struct elf64_ia64_link_hash_entry *h; - struct elf64_ia64_dyn_sym_info *dyn_i; - - h = (struct elf64_ia64_link_hash_entry *)xh; - - h->root.elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; - h->root.dynindx = -1; - - for (dyn_i = h->info; dyn_i; dyn_i = dyn_i->next) - dyn_i->want_plt2 = 0; -} - -/* Create the derived linker hash table. The IA-64 ELF port uses this - derived hash table to keep information specific to the IA-64 ElF - linker (without using static variables). */ - -static struct bfd_link_hash_table* -elf64_ia64_hash_table_create (abfd) - bfd *abfd; -{ - struct elf64_ia64_link_hash_table *ret; - - ret = bfd_alloc (abfd, sizeof (*ret)); - if (!ret) - return 0; - if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, - elf64_ia64_new_elf_hash_entry)) - { - bfd_release (abfd, ret); - return 0; - } - - if (!elf64_ia64_local_hash_table_init (&ret->loc_hash_table, abfd, - elf64_ia64_new_loc_hash_entry)) - return 0; - return &ret->root.root; -} - -/* Look up an entry in a Alpha ELF linker hash table. */ - -static INLINE struct elf64_ia64_local_hash_entry * -elf64_ia64_local_hash_lookup(table, string, create, copy) - struct elf64_ia64_local_hash_table *table; - const char *string; - boolean create, copy; -{ - return ((struct elf64_ia64_local_hash_entry *) - bfd_hash_lookup (&table->root, string, create, copy)); -} - -/* Traverse both local and global hash tables. */ - -struct elf64_ia64_dyn_sym_traverse_data -{ - boolean (*func) PARAMS ((struct elf64_ia64_dyn_sym_info *, PTR)); - PTR data; -}; - -static boolean -elf64_ia64_global_dyn_sym_thunk (xentry, xdata) - struct bfd_hash_entry *xentry; - PTR xdata; -{ - struct elf64_ia64_link_hash_entry *entry - = (struct elf64_ia64_link_hash_entry *) xentry; - struct elf64_ia64_dyn_sym_traverse_data *data - = (struct elf64_ia64_dyn_sym_traverse_data *) xdata; - struct elf64_ia64_dyn_sym_info *dyn_i; - - for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next) - if (! (*data->func) (dyn_i, data->data)) - return false; - return true; -} - -static boolean -elf64_ia64_local_dyn_sym_thunk (xentry, xdata) - struct bfd_hash_entry *xentry; - PTR xdata; -{ - struct elf64_ia64_local_hash_entry *entry - = (struct elf64_ia64_local_hash_entry *) xentry; - struct elf64_ia64_dyn_sym_traverse_data *data - = (struct elf64_ia64_dyn_sym_traverse_data *) xdata; - struct elf64_ia64_dyn_sym_info *dyn_i; - - for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next) - if (! (*data->func) (dyn_i, data->data)) - return false; - return true; -} - -static void -elf64_ia64_dyn_sym_traverse (ia64_info, func, data) - struct elf64_ia64_link_hash_table *ia64_info; - boolean (*func) PARAMS ((struct elf64_ia64_dyn_sym_info *, PTR)); - PTR data; -{ - struct elf64_ia64_dyn_sym_traverse_data xdata; - - xdata.func = func; - xdata.data = data; - - elf_link_hash_traverse (&ia64_info->root, - elf64_ia64_global_dyn_sym_thunk, &xdata); - bfd_hash_traverse (&ia64_info->loc_hash_table.root, - elf64_ia64_local_dyn_sym_thunk, &xdata); -} - -static boolean -elf64_ia64_create_dynamic_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - struct elf64_ia64_link_hash_table *ia64_info; - struct elf_link_hash_entry *h; - asection *s; - - if (! _bfd_elf_create_dynamic_sections (abfd, info)) - return false; - - ia64_info = elf64_ia64_hash_table (info); - - ia64_info->plt_sec = bfd_get_section_by_name (abfd, ".plt"); - ia64_info->got_sec = bfd_get_section_by_name (abfd, ".got"); - - { - flagword flags = bfd_get_section_flags (abfd, ia64_info->got_sec); - bfd_set_section_flags (abfd, ia64_info->got_sec, SEC_SMALL_DATA | flags); - } - - if (!get_pltoff (abfd, info, ia64_info)) - return false; - - s = bfd_make_section(abfd, ".rela.IA_64.pltoff"); - if (s == NULL - || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_LINKER_CREATED - | SEC_READONLY)) - || !bfd_set_section_alignment (abfd, s, 3)) - return false; - ia64_info->rel_pltoff_sec = s; - - s = bfd_make_section(abfd, ".rela.got"); - if (s == NULL - || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_LINKER_CREATED - | SEC_READONLY)) - || !bfd_set_section_alignment (abfd, s, 3)) - return false; - ia64_info->rel_got_sec = s; - - return true; -} - -/* Find and/or create a descriptor for dynamic symbol info. This will - vary based on global or local symbol, and the addend to the reloc. */ - -static struct elf64_ia64_dyn_sym_info * -get_dyn_sym_info (ia64_info, h, abfd, rel, create) - struct elf64_ia64_link_hash_table *ia64_info; - struct elf_link_hash_entry *h; - bfd *abfd; - const Elf_Internal_Rela *rel; - boolean create; -{ - struct elf64_ia64_dyn_sym_info **pp; - struct elf64_ia64_dyn_sym_info *dyn_i; - bfd_vma addend = rel ? rel->r_addend : 0; - - if (h) - pp = &((struct elf64_ia64_link_hash_entry *)h)->info; - else - { - struct elf64_ia64_local_hash_entry *loc_h; - char *addr_name; - size_t len; - - /* Construct a string for use in the elf64_ia64_local_hash_table. - The name describes what was once anonymous memory. */ - - len = sizeof(void*)*2 + 1 + sizeof(bfd_vma)*4 + 1 + 1; - len += 10; /* %p slop */ - - addr_name = alloca (len); - sprintf (addr_name, "%p:%lx", abfd, ELF64_R_SYM (rel->r_info)); - - /* Collect the canonical entry data for this address. */ - loc_h = elf64_ia64_local_hash_lookup (&ia64_info->loc_hash_table, - addr_name, create, create); - BFD_ASSERT (loc_h); - - pp = &loc_h->info; - } - - for (dyn_i = *pp; dyn_i && dyn_i->addend != addend; dyn_i = *pp) - pp = &dyn_i->next; - - if (dyn_i == NULL && create) - { - dyn_i = (struct elf64_ia64_dyn_sym_info *) - bfd_zalloc (abfd, sizeof *dyn_i); - *pp = dyn_i; - dyn_i->addend = addend; - } - - return dyn_i; -} - -static asection * -get_got (abfd, info, ia64_info) - bfd *abfd; - struct bfd_link_info *info; - struct elf64_ia64_link_hash_table *ia64_info; -{ - asection *got, *srel; - bfd *dynobj; - - got = ia64_info->got_sec; - if (!got) - { - flagword flags; - - dynobj = ia64_info->root.dynobj; - if (!dynobj) - ia64_info->root.dynobj = dynobj = abfd; - if (!_bfd_elf_create_got_section (dynobj, info)) - return 0; - - got = bfd_get_section_by_name (dynobj, ".got"); - BFD_ASSERT (got); - ia64_info->got_sec = got; - - flags = bfd_get_section_flags (abfd, got); - bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags); - } - - return got; -} - -/* Create function descriptor section (.opd). This section is called .opd - because it contains "official prodecure descriptors". The "official" - refers to the fact that these descriptors are used when taking the address - of a procedure, thus ensuring a unique address for each procedure. */ - -static asection * -get_fptr (abfd, info, ia64_info) - bfd *abfd; - struct bfd_link_info *info; - struct elf64_ia64_link_hash_table *ia64_info; -{ - asection *fptr; - bfd *dynobj; - - fptr = ia64_info->fptr_sec; - if (!fptr) - { - dynobj = ia64_info->root.dynobj; - if (!dynobj) - ia64_info->root.dynobj = dynobj = abfd; - - fptr = bfd_make_section (dynobj, ".opd"); - if (!fptr - || !bfd_set_section_flags (dynobj, fptr, - (SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_READONLY - | SEC_LINKER_CREATED)) - || !bfd_set_section_alignment (abfd, fptr, 4)) - { - BFD_ASSERT (0); - return NULL; - } - - ia64_info->fptr_sec = fptr; - } - - return fptr; -} - -static asection * -get_pltoff (abfd, info, ia64_info) - bfd *abfd; - struct bfd_link_info *info; - struct elf64_ia64_link_hash_table *ia64_info; -{ - asection *pltoff; - bfd *dynobj; - - pltoff = ia64_info->pltoff_sec; - if (!pltoff) - { - dynobj = ia64_info->root.dynobj; - if (!dynobj) - ia64_info->root.dynobj = dynobj = abfd; - - pltoff = bfd_make_section (dynobj, ELF_STRING_ia64_pltoff); - if (!pltoff - || !bfd_set_section_flags (dynobj, pltoff, - (SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_SMALL_DATA - | SEC_LINKER_CREATED)) - || !bfd_set_section_alignment (abfd, pltoff, 4)) - { - BFD_ASSERT (0); - return NULL; - } - - ia64_info->pltoff_sec = pltoff; - } - - return pltoff; -} - -static asection * -get_reloc_section (abfd, ia64_info, sec, create) - bfd *abfd; - struct elf64_ia64_link_hash_table *ia64_info; - asection *sec; - boolean create; -{ - const char *srel_name; - asection *srel; - bfd *dynobj; - - srel_name = (bfd_elf_string_from_elf_section - (abfd, elf_elfheader(abfd)->e_shstrndx, - elf_section_data(sec)->rel_hdr.sh_name)); - if (srel_name == NULL) - return NULL; - - BFD_ASSERT ((strncmp (srel_name, ".rela", 5) == 0 - && strcmp (bfd_get_section_name (abfd, sec), - srel_name+5) == 0) - || (strncmp (srel_name, ".rel", 4) == 0 - && strcmp (bfd_get_section_name (abfd, sec), - srel_name+4) == 0)); - - dynobj = ia64_info->root.dynobj; - if (!dynobj) - ia64_info->root.dynobj = dynobj = abfd; - - srel = bfd_get_section_by_name (dynobj, srel_name); - if (srel == NULL && create) - { - srel = bfd_make_section (dynobj, srel_name); - if (srel == NULL - || !bfd_set_section_flags (dynobj, srel, - (SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_LINKER_CREATED - | SEC_READONLY)) - || !bfd_set_section_alignment (dynobj, srel, 3)) - return NULL; - } - - return srel; -} - -static boolean -count_dyn_reloc (abfd, dyn_i, srel, type) - bfd *abfd; - struct elf64_ia64_dyn_sym_info *dyn_i; - asection *srel; - int type; -{ - struct elf64_ia64_dyn_reloc_entry *rent; - - for (rent = dyn_i->reloc_entries; rent; rent = rent->next) - if (rent->srel == srel && rent->type == type) - break; - - if (!rent) - { - rent = (struct elf64_ia64_dyn_reloc_entry *) - bfd_alloc (abfd, sizeof (*rent)); - if (!rent) - return false; - - rent->next = dyn_i->reloc_entries; - rent->srel = srel; - rent->type = type; - rent->count = 0; - dyn_i->reloc_entries = rent; - } - rent->count++; - - return true; -} - -static boolean -elf64_ia64_check_relocs (abfd, info, sec, relocs) - bfd *abfd; - struct bfd_link_info *info; - asection *sec; - const Elf_Internal_Rela *relocs; -{ - struct elf64_ia64_link_hash_table *ia64_info; - const Elf_Internal_Rela *relend; - Elf_Internal_Shdr *symtab_hdr; - const Elf_Internal_Rela *rel; - asection *got, *fptr, *srel; - - if (info->relocateable) - return true; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - ia64_info = elf64_ia64_hash_table (info); - - got = fptr = srel = NULL; - - relend = relocs + sec->reloc_count; - for (rel = relocs; rel < relend; ++rel) - { - enum { - NEED_GOT = 1, - NEED_FPTR = 2, - NEED_PLTOFF = 4, - NEED_MIN_PLT = 8, - NEED_FULL_PLT = 16, - NEED_DYNREL = 32, - NEED_LTOFF_FPTR = 64, - }; - - struct elf_link_hash_entry *h = NULL; - unsigned long r_symndx = ELF64_R_SYM (rel->r_info); - struct elf64_ia64_dyn_sym_info *dyn_i; - int need_entry; - boolean maybe_dynamic; - int dynrel_type; - - if (r_symndx >= symtab_hdr->sh_info) - { - /* We're dealing with a global symbol -- find its hash entry - and mark it as being referenced. */ - long indx = r_symndx - symtab_hdr->sh_info; - h = elf_sym_hashes (abfd)[indx]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - h->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR; - } - - /* We can only get preliminary data on whether a symbol is - locally or externally defined, as not all of the input files - have yet been processed. Do something with what we know, as - this may help reduce memory usage and processing time later. */ - maybe_dynamic = false; - if (h && ((info->shared && ! info->symbolic) - || ! (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) - || h->root.type == bfd_link_hash_defweak)) - maybe_dynamic = true; - - need_entry = 0; - switch (ELF64_R_TYPE (rel->r_info)) - { - case R_IA64_TPREL22: - case R_IA64_TPREL64MSB: - case R_IA64_TPREL64LSB: - case R_IA64_LTOFF_TP22: - return false; - - case R_IA64_LTOFF_FPTR22: - case R_IA64_LTOFF_FPTR64I: - case R_IA64_LTOFF_FPTR64MSB: - case R_IA64_LTOFF_FPTR64LSB: - need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR; - break; - - case R_IA64_FPTR64I: - case R_IA64_FPTR32MSB: - case R_IA64_FPTR32LSB: - case R_IA64_FPTR64MSB: - case R_IA64_FPTR64LSB: - if (info->shared || h) - need_entry = NEED_FPTR | NEED_DYNREL; - else - need_entry = NEED_FPTR; - dynrel_type = R_IA64_FPTR64LSB; - break; - - case R_IA64_LTOFF22: - case R_IA64_LTOFF22X: - case R_IA64_LTOFF64I: - need_entry = NEED_GOT; - break; - - case R_IA64_PLTOFF22: - case R_IA64_PLTOFF64I: - case R_IA64_PLTOFF64MSB: - case R_IA64_PLTOFF64LSB: - need_entry = NEED_PLTOFF; - if (h) - { - if (maybe_dynamic) - need_entry |= NEED_MIN_PLT; - } - else - { - (*info->callbacks->warning) - (info, _("@pltoff reloc against local symbol"), 0, - abfd, 0, 0); - } - break; - - case R_IA64_PCREL21B: - case R_IA64_PCREL60B: - /* Depending on where this symbol is defined, we may or may not - need a full plt entry. Only skip if we know we'll not need - the entry -- static or symbolic, and the symbol definition - has already been seen. */ - if (maybe_dynamic && rel->r_addend == 0) - need_entry = NEED_FULL_PLT; - break; - - case R_IA64_IMM14: - case R_IA64_IMM22: - case R_IA64_IMM64: - case R_IA64_DIR32MSB: - case R_IA64_DIR32LSB: - case R_IA64_DIR64MSB: - case R_IA64_DIR64LSB: - /* Shared objects will always need at least a REL relocation. */ - if (info->shared || maybe_dynamic) - need_entry = NEED_DYNREL; - dynrel_type = R_IA64_DIR64LSB; - break; - - case R_IA64_PCREL22: - case R_IA64_PCREL64I: - case R_IA64_PCREL32MSB: - case R_IA64_PCREL32LSB: - case R_IA64_PCREL64MSB: - case R_IA64_PCREL64LSB: - if (maybe_dynamic) - need_entry = NEED_DYNREL; - dynrel_type = R_IA64_PCREL64LSB; - break; - } - - if (!need_entry) - continue; - - if ((need_entry & NEED_FPTR) != 0 - && rel->r_addend) - { - (*info->callbacks->warning) - (info, _("non-zero addend in @fptr reloc"), 0, - abfd, 0, 0); - } - - dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, true); - - /* Record whether or not this is a local symbol. */ - dyn_i->h = h; - - /* Create what's needed. */ - if (need_entry & NEED_GOT) - { - if (!got) - { - got = get_got (abfd, info, ia64_info); - if (!got) - return false; - } - dyn_i->want_got = 1; - } - if (need_entry & NEED_FPTR) - { - if (!fptr) - { - fptr = get_fptr (abfd, info, ia64_info); - if (!fptr) - return false; - } - - /* FPTRs for shared libraries are allocated by the dynamic - linker. Make sure this local symbol will appear in the - dynamic symbol table. */ - if (!h && info->shared) - { - if (! (_bfd_elf64_link_record_local_dynamic_symbol - (info, abfd, r_symndx))) - return false; - } - - dyn_i->want_fptr = 1; - } - if (need_entry & NEED_LTOFF_FPTR) - dyn_i->want_ltoff_fptr = 1; - if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT)) - { - if (!ia64_info->root.dynobj) - ia64_info->root.dynobj = abfd; - h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; - dyn_i->want_plt = 1; - } - if (need_entry & NEED_FULL_PLT) - dyn_i->want_plt2 = 1; - if (need_entry & NEED_PLTOFF) - dyn_i->want_pltoff = 1; - if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC)) - { - if (!srel) - { - srel = get_reloc_section (abfd, ia64_info, sec, true); - if (!srel) - return false; - } - if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type)) - return false; - } - } - - return true; -} - -struct elf64_ia64_allocate_data -{ - struct bfd_link_info *info; - bfd_size_type ofs; -}; - -/* For cleanliness, and potentially faster dynamic loading, allocate - external GOT entries first. */ - -static boolean -allocate_global_data_got (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - - if (dyn_i->want_got - && ! dyn_i->want_fptr - && elf64_ia64_dynamic_symbol_p (dyn_i->h, x->info)) - { - dyn_i->got_offset = x->ofs; - x->ofs += 8; - } - return true; -} - -/* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */ - -static boolean -allocate_global_fptr_got (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - - if (dyn_i->want_got - && dyn_i->want_fptr - && elf64_ia64_dynamic_symbol_p (dyn_i->h, x->info)) - { - dyn_i->got_offset = x->ofs; - x->ofs += 8; - } - return true; -} - -/* Lastly, allocate all the GOT entries for local data. */ - -static boolean -allocate_local_got (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - - if (dyn_i->want_got - && ! elf64_ia64_dynamic_symbol_p (dyn_i->h, x->info)) - { - dyn_i->got_offset = x->ofs; - x->ofs += 8; - } - return true; -} - -/* Search for the index of a global symbol in it's defining object file. */ - -static unsigned long -global_sym_index (h) - struct elf_link_hash_entry *h; -{ - struct elf_link_hash_entry **p; - bfd *obj; - - BFD_ASSERT (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak); - - obj = h->root.u.def.section->owner; - for (p = elf_sym_hashes (obj); *p != h; ++p) - continue; - - return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info; -} - -/* Allocate function descriptors. We can do these for every function - in a main executable that is not exported. */ - -static boolean -allocate_fptr (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - - if (dyn_i->want_fptr) - { - struct elf_link_hash_entry *h = dyn_i->h; - - if (h) - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - if (x->info->shared) - { - if (h && h->dynindx == -1) - { - BFD_ASSERT ((h->root.type == bfd_link_hash_defined) - || (h->root.type == bfd_link_hash_defweak)); - - if (!_bfd_elf64_link_record_local_dynamic_symbol - (x->info, h->root.u.def.section->owner, - global_sym_index (h))) - return false; - } - - dyn_i->want_fptr = 0; - } - else if (h == NULL || h->dynindx == -1) - { - dyn_i->fptr_offset = x->ofs; - x->ofs += 16; - } - else - dyn_i->want_fptr = 0; - } - return true; -} - -/* Allocate all the minimal PLT entries. */ - -static boolean -allocate_plt_entries (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - - if (dyn_i->want_plt) - { - struct elf_link_hash_entry *h = dyn_i->h; - - if (h) - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */ - if (elf64_ia64_dynamic_symbol_p (h, x->info)) - { - bfd_size_type offset = x->ofs; - if (offset == 0) - offset = PLT_HEADER_SIZE; - dyn_i->plt_offset = offset; - x->ofs = offset + PLT_MIN_ENTRY_SIZE; - - dyn_i->want_pltoff = 1; - } - else - { - dyn_i->want_plt = 0; - dyn_i->want_plt2 = 0; - } - } - return true; -} - -/* Allocate all the full PLT entries. */ - -static boolean -allocate_plt2_entries (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - - if (dyn_i->want_plt2) - { - struct elf_link_hash_entry *h = dyn_i->h; - bfd_size_type ofs = x->ofs; - - dyn_i->plt2_offset = ofs; - x->ofs = ofs + PLT_FULL_ENTRY_SIZE; - - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - dyn_i->h->plt.offset = ofs; - } - return true; -} - -/* Allocate all the PLTOFF entries requested by relocations and - plt entries. We can't share space with allocated FPTR entries, - because the latter are not necessarily addressable by the GP. - ??? Relaxation might be able to determine that they are. */ - -static boolean -allocate_pltoff_entries (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - - if (dyn_i->want_pltoff) - { - dyn_i->pltoff_offset = x->ofs; - x->ofs += 16; - } - return true; -} - -/* Allocate dynamic relocations for those symbols that turned out - to be dynamic. */ - -static boolean -allocate_dynrel_entries (dyn_i, data) - struct elf64_ia64_dyn_sym_info *dyn_i; - PTR data; -{ - struct elf64_ia64_allocate_data *x = (struct elf64_ia64_allocate_data *)data; - struct elf64_ia64_link_hash_table *ia64_info; - struct elf64_ia64_dyn_reloc_entry *rent; - boolean dynamic_symbol, shared; - - ia64_info = elf64_ia64_hash_table (x->info); - dynamic_symbol = elf64_ia64_dynamic_symbol_p (dyn_i->h, x->info); - shared = x->info->shared; - - /* Take care of the normal data relocations. */ - - for (rent = dyn_i->reloc_entries; rent; rent = rent->next) - { - switch (rent->type) - { - case R_IA64_FPTR64LSB: - /* Allocate one iff !want_fptr, which by this point will - be true only if we're actually allocating one statically - in the main executable. */ - if (dyn_i->want_fptr) - continue; - break; - case R_IA64_PCREL64LSB: - if (!dynamic_symbol) - continue; - break; - case R_IA64_DIR64LSB: - if (!dynamic_symbol && !shared) - continue; - break; - } - rent->srel->_raw_size += sizeof (Elf64_External_Rela) * rent->count; - } - - /* Take care of the GOT and PLT relocations. */ - - if (((dynamic_symbol || shared) && dyn_i->want_got) - || (dyn_i->want_ltoff_fptr && dyn_i->h && dyn_i->h->dynindx != -1)) - ia64_info->rel_got_sec->_raw_size += sizeof (Elf64_External_Rela); - - if (dyn_i->want_pltoff) - { - bfd_size_type t = 0; - - /* Dynamic symbols get one IPLT relocation. Local symbols in - shared libraries get two REL relocations. Local symbols in - main applications get nothing. */ - if (dynamic_symbol) - t = sizeof (Elf64_External_Rela); - else if (shared) - t = 2 * sizeof (Elf64_External_Rela); - - ia64_info->rel_pltoff_sec->_raw_size += t; - } - - return true; -} - -static boolean -elf64_ia64_adjust_dynamic_symbol (info, h) - struct bfd_link_info *info; - struct elf_link_hash_entry *h; -{ - /* ??? Undefined symbols with PLT entries should be re-defined - to be the PLT entry. */ - - /* If this is a weak symbol, and there is a real definition, the - processor independent code will have arranged for us to see the - real definition first, and we can just use the same value. */ - if (h->weakdef != NULL) - { - BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined - || h->weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->weakdef->root.u.def.section; - h->root.u.def.value = h->weakdef->root.u.def.value; - return true; - } - - /* If this is a reference to a symbol defined by a dynamic object which - is not a function, we might allocate the symbol in our .dynbss section - and allocate a COPY dynamic relocation. - - But IA-64 code is canonically PIC, so as a rule we can avoid this sort - of hackery. */ - - return true; -} - -static boolean -elf64_ia64_size_dynamic_sections (output_bfd, info) - bfd *output_bfd; - struct bfd_link_info *info; -{ - struct elf64_ia64_allocate_data data; - struct elf64_ia64_link_hash_table *ia64_info; - asection *sec; - bfd *dynobj; - boolean reltext = false; - boolean relplt = false; - - dynobj = elf_hash_table(info)->dynobj; - ia64_info = elf64_ia64_hash_table (info); - BFD_ASSERT(dynobj != NULL); - data.info = info; - - /* Set the contents of the .interp section to the interpreter. */ - if (ia64_info->root.dynamic_sections_created - && !info->shared) - { - sec = bfd_get_section_by_name (dynobj, ".interp"); - BFD_ASSERT (sec != NULL); - sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER; - sec->_raw_size = strlen (ELF_DYNAMIC_INTERPRETER) + 1; - } - - /* DT_INIT and DT_FINI get function descriptors not raw code addresses. - Force their symbols to have pltoff entries so we can use those. */ - if (ia64_info->root.dynamic_sections_created) - { - struct elf_link_hash_entry *h; - struct elf64_ia64_dyn_sym_info *dyn_i; - - if (info->init_function - && (h = elf_link_hash_lookup (elf_hash_table (info), - info->init_function, false, - false, false)) - && (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR - | ELF_LINK_HASH_DEF_REGULAR)) != 0) - { - dyn_i = get_dyn_sym_info (ia64_info, h, output_bfd, NULL, true); - dyn_i->want_pltoff = 1; - } - - if (info->fini_function - && (h = elf_link_hash_lookup (elf_hash_table (info), - info->fini_function, false, - false, false)) - && (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR - | ELF_LINK_HASH_DEF_REGULAR)) != 0) - { - dyn_i = get_dyn_sym_info (ia64_info, h, output_bfd, NULL, true); - dyn_i->want_pltoff = 1; - } - } - - /* Allocate the GOT entries. */ - - if (ia64_info->got_sec) - { - data.ofs = 0; - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data); - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data); - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data); - ia64_info->got_sec->_raw_size = data.ofs; - } - - /* Allocate the FPTR entries. */ - - if (ia64_info->fptr_sec) - { - data.ofs = 0; - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data); - ia64_info->fptr_sec->_raw_size = data.ofs; - } - - /* Now that we've seen all of the input files, we can decide which - symbols need plt entries. Allocate the minimal PLT entries first. - We do this even though dynamic_sections_created may be false, because - this has the side-effect of clearing want_plt and want_plt2. */ - - data.ofs = 0; - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data); - - ia64_info->minplt_entries = 0; - if (data.ofs) - { - ia64_info->minplt_entries - = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE; - } - - /* Align the pointer for the plt2 entries. */ - data.ofs = (data.ofs + 31) & -32; - - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data); - if (data.ofs != 0) - { - BFD_ASSERT (ia64_info->root.dynamic_sections_created); - - ia64_info->plt_sec->_raw_size = data.ofs; - - /* If we've got a .plt, we need some extra memory for the dynamic - linker. We stuff these in .got.plt. */ - sec = bfd_get_section_by_name (dynobj, ".got.plt"); - sec->_raw_size = 8 * PLT_RESERVED_WORDS; - } - - /* Allocate the PLTOFF entries. */ - - if (ia64_info->pltoff_sec) - { - data.ofs = 0; - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data); - ia64_info->pltoff_sec->_raw_size = data.ofs; - } - - if (ia64_info->root.dynamic_sections_created) - { - /* Allocate space for the dynamic relocations that turned out to be - required. */ - - elf64_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data); - } - - /* We have now determined the sizes of the various dynamic sections. - Allocate memory for them. */ - for (sec = dynobj->sections; sec != NULL; sec = sec->next) - { - boolean strip; - - if (!(sec->flags & SEC_LINKER_CREATED)) - continue; - - /* If we don't need this section, strip it from the output file. - There were several sections primarily related to dynamic - linking that must be create before the linker maps input - sections to output sections. The linker does that before - bfd_elf_size_dynamic_sections is called, and it is that - function which decides whether anything needs to go into - these sections. */ - - strip = (sec->_raw_size == 0); - - if (sec == ia64_info->got_sec) - strip = false; - else if (sec == ia64_info->rel_got_sec) - { - if (strip) - ia64_info->rel_got_sec = NULL; - else - /* We use the reloc_count field as a counter if we need to - copy relocs into the output file. */ - sec->reloc_count = 0; - } - else if (sec == ia64_info->fptr_sec) - { - if (strip) - ia64_info->fptr_sec = NULL; - } - else if (sec == ia64_info->plt_sec) - { - if (strip) - ia64_info->plt_sec = NULL; - } - else if (sec == ia64_info->pltoff_sec) - { - if (strip) - ia64_info->pltoff_sec = NULL; - } - else if (sec == ia64_info->rel_pltoff_sec) - { - if (strip) - ia64_info->rel_pltoff_sec = NULL; - else - { - relplt = true; - /* We use the reloc_count field as a counter if we need to - copy relocs into the output file. */ - sec->reloc_count = 0; - } - } - else - { - const char *name; - - /* It's OK to base decisions on the section name, because none - of the dynobj section names depend upon the input files. */ - name = bfd_get_section_name (dynobj, sec); - - if (strcmp (name, ".got.plt") == 0) - strip = false; - else if (strncmp (name, ".rel", 4) == 0) - { - if (!strip) - { - const char *outname; - asection *target; - - /* If this relocation section applies to a read only - section, then we probably need a DT_TEXTREL entry. */ - outname = bfd_get_section_name (output_bfd, - sec->output_section); - if (outname[4] == 'a') - outname += 5; - else - outname += 4; - - target = bfd_get_section_by_name (output_bfd, outname); - if (target != NULL - && (target->flags & SEC_READONLY) != 0 - && (target->flags & SEC_ALLOC) != 0) - reltext = true; - - /* We use the reloc_count field as a counter if we need to - copy relocs into the output file. */ - sec->reloc_count = 0; - } - } - else - continue; - } - - if (strip) - _bfd_strip_section_from_output (info, sec); - else - { - /* Allocate memory for the section contents. */ - sec->contents = (bfd_byte *) bfd_zalloc(dynobj, sec->_raw_size); - if (sec->contents == NULL && sec->_raw_size != 0) - return false; - } - } - - if (elf_hash_table (info)->dynamic_sections_created) - { - /* Add some entries to the .dynamic section. We fill in the values - later (in finish_dynamic_sections) but we must add the entries now - so that we get the correct size for the .dynamic section. */ - - if (!info->shared) - { - /* The DT_DEBUG entry is filled in by the dynamic linker and used - by the debugger. */ - if (!bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0)) - return false; - } - - if (! bfd_elf64_add_dynamic_entry (info, DT_IA_64_PLT_RESERVE, 0)) - return false; - if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0)) - return false; - - if (relplt) - { - if (! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA) - || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0)) - return false; - } - - if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT, - sizeof(Elf64_External_Rela))) - return false; - - if (reltext) - { - if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0)) - return false; - } - } - - /* ??? Perhaps force __gp local. */ - - return true; -} - -static bfd_reloc_status_type -elf64_ia64_install_value (abfd, hit_addr, val, r_type) - bfd *abfd; - bfd_byte *hit_addr; - bfd_vma val; - unsigned int r_type; -{ - const struct ia64_operand *op; - int bigendian = 0, shift = 0; - bfd_vma t0, t1, insn, dword; - enum ia64_opnd opnd; - const char *err; - size_t size = 8; - - opnd = IA64_OPND_NIL; - switch (r_type) - { - case R_IA64_NONE: - case R_IA64_LDXMOV: - return bfd_reloc_ok; - - /* Instruction relocations. */ - - case R_IA64_IMM14: opnd = IA64_OPND_IMM14; break; - - case R_IA64_PCREL21F: opnd = IA64_OPND_TGT25; break; - case R_IA64_PCREL21M: opnd = IA64_OPND_TGT25b; break; - case R_IA64_PCREL60B: opnd = IA64_OPND_TGT64; break; - case R_IA64_PCREL21B: - case R_IA64_PCREL21BI: - opnd = IA64_OPND_TGT25c; - break; - - case R_IA64_IMM22: - case R_IA64_GPREL22: - case R_IA64_LTOFF22: - case R_IA64_LTOFF22X: - case R_IA64_PLTOFF22: - case R_IA64_PCREL22: - case R_IA64_LTOFF_FPTR22: - opnd = IA64_OPND_IMM22; - break; - - case R_IA64_IMM64: - case R_IA64_GPREL64I: - case R_IA64_LTOFF64I: - case R_IA64_PLTOFF64I: - case R_IA64_PCREL64I: - case R_IA64_FPTR64I: - case R_IA64_LTOFF_FPTR64I: - opnd = IA64_OPND_IMMU64; - break; - - /* Data relocations. */ - - case R_IA64_DIR32MSB: - case R_IA64_GPREL32MSB: - case R_IA64_FPTR32MSB: - case R_IA64_PCREL32MSB: - case R_IA64_SEGREL32MSB: - case R_IA64_SECREL32MSB: - case R_IA64_LTV32MSB: - size = 4; bigendian = 1; - break; - - case R_IA64_DIR32LSB: - case R_IA64_GPREL32LSB: - case R_IA64_FPTR32LSB: - case R_IA64_PCREL32LSB: - case R_IA64_SEGREL32LSB: - case R_IA64_SECREL32LSB: - case R_IA64_LTV32LSB: - size = 4; bigendian = 0; - break; - - case R_IA64_DIR64MSB: - case R_IA64_GPREL64MSB: - case R_IA64_PLTOFF64MSB: - case R_IA64_FPTR64MSB: - case R_IA64_PCREL64MSB: - case R_IA64_LTOFF_FPTR64MSB: - case R_IA64_SEGREL64MSB: - case R_IA64_SECREL64MSB: - case R_IA64_LTV64MSB: - size = 8; bigendian = 1; - break; - - case R_IA64_DIR64LSB: - case R_IA64_GPREL64LSB: - case R_IA64_PLTOFF64LSB: - case R_IA64_FPTR64LSB: - case R_IA64_PCREL64LSB: - case R_IA64_LTOFF_FPTR64LSB: - case R_IA64_SEGREL64LSB: - case R_IA64_SECREL64LSB: - case R_IA64_LTV64LSB: - size = 8; bigendian = 0; - break; - - /* Unsupported / Dynamic relocations. */ - - case R_IA64_REL32MSB: - case R_IA64_REL32LSB: - case R_IA64_REL64MSB: - case R_IA64_REL64LSB: - - case R_IA64_IPLTMSB: - case R_IA64_IPLTLSB: - case R_IA64_EPLTMSB: - case R_IA64_EPLTLSB: - case R_IA64_COPY: - - case R_IA64_SEGBASE: - - case R_IA64_TPREL22: - case R_IA64_TPREL64MSB: - case R_IA64_TPREL64LSB: - case R_IA64_LTOFF_TP22: - - default: - return bfd_reloc_notsupported; - } - - switch (opnd) - { - case IA64_OPND_IMMU64: - hit_addr -= (long) hit_addr & 0x3; - t0 = bfd_get_64 (abfd, hit_addr); - t1 = bfd_get_64 (abfd, hit_addr + 8); - - /* tmpl/s: bits 0.. 5 in t0 - slot 0: bits 5..45 in t0 - slot 1: bits 46..63 in t0, bits 0..22 in t1 - slot 2: bits 23..63 in t1 */ - - /* First, clear the bits that form the 64 bit constant. */ - t0 &= ~(0x3ffffLL << 46); - t1 &= ~(0x7fffffLL - | (( (0x07fLL << 13) | (0x1ffLL << 27) - | (0x01fLL << 22) | (0x001LL << 21) - | (0x001LL << 36)) << 23)); - - t0 |= ((val >> 22) & 0x03ffffLL) << 46; /* 18 lsbs of imm41 */ - t1 |= ((val >> 40) & 0x7fffffLL) << 0; /* 23 msbs of imm41 */ - t1 |= ( (((val >> 0) & 0x07f) << 13) /* imm7b */ - | (((val >> 7) & 0x1ff) << 27) /* imm9d */ - | (((val >> 16) & 0x01f) << 22) /* imm5c */ - | (((val >> 21) & 0x001) << 21) /* ic */ - | (((val >> 63) & 0x001) << 36)) << 23; /* i */ - - bfd_put_64 (abfd, t0, hit_addr); - bfd_put_64 (abfd, t1, hit_addr + 8); - break; - - case IA64_OPND_TGT64: - hit_addr -= (long) hit_addr & 0x3; - t0 = bfd_get_64 (abfd, hit_addr); - t1 = bfd_get_64 (abfd, hit_addr + 8); - - /* tmpl/s: bits 0.. 5 in t0 - slot 0: bits 5..45 in t0 - slot 1: bits 46..63 in t0, bits 0..22 in t1 - slot 2: bits 23..63 in t1 */ - - /* First, clear the bits that form the 64 bit constant. */ - t0 &= ~(0x3ffffLL << 46); - t1 &= ~(0x7fffffLL - | ((1LL << 36 | 0xfffffLL << 13) << 23)); - - val >>= 4; - t0 |= ((val >> 20) & 0xffffLL) << 2 << 46; /* 16 lsbs of imm39 */ - t1 |= ((val >> 36) & 0x7fffffLL) << 0; /* 23 msbs of imm39 */ - t1 |= ((((val >> 0) & 0xfffffLL) << 13) /* imm20b */ - | (((val >> 59) & 0x1LL) << 36)) << 23; /* i */ - - bfd_put_64 (abfd, t0, hit_addr); - bfd_put_64 (abfd, t1, hit_addr + 8); - break; - - default: - switch ((long) hit_addr & 0x3) - { - case 0: shift = 5; break; - case 1: shift = 14; hit_addr += 3; break; - case 2: shift = 23; hit_addr += 6; break; - case 3: return bfd_reloc_notsupported; /* shouldn't happen... */ - } - dword = bfd_get_64 (abfd, hit_addr); - insn = (dword >> shift) & 0x1ffffffffffLL; - - op = elf64_ia64_operands + opnd; - err = (*op->insert) (op, val, &insn); - if (err) - return bfd_reloc_overflow; - - dword &= ~(0x1ffffffffffLL << shift); - dword |= (insn << shift); - bfd_put_64 (abfd, dword, hit_addr); - break; - - case IA64_OPND_NIL: - /* A data relocation. */ - if (bigendian) - if (size == 4) - bfd_putb32 (val, hit_addr); - else - bfd_putb64 (val, hit_addr); - else - if (size == 4) - bfd_putl32 (val, hit_addr); - else - bfd_putl64 (val, hit_addr); - break; - } - - return bfd_reloc_ok; -} - -static void -elf64_ia64_install_dyn_reloc (abfd, info, sec, srel, offset, type, - dynindx, addend) - bfd *abfd; - struct bfd_link_info *info; - asection *sec; - asection *srel; - bfd_vma offset; - unsigned int type; - long dynindx; - bfd_vma addend; -{ - Elf_Internal_Rela outrel; - - outrel.r_offset = (sec->output_section->vma - + sec->output_offset - + offset); - - BFD_ASSERT (dynindx != -1); - outrel.r_info = ELF64_R_INFO (dynindx, type); - outrel.r_addend = addend; - - if (elf_section_data (sec)->stab_info != NULL) - { - /* This may be NULL for linker-generated relocations, as it is - inconvenient to pass all the bits around. And this shouldn't - happen. */ - BFD_ASSERT (info != NULL); - - offset = (_bfd_stab_section_offset - (abfd, &elf_hash_table (info)->stab_info, sec, - &elf_section_data (sec)->stab_info, offset)); - if (offset == (bfd_vma) -1) - { - /* Run for the hills. We shouldn't be outputting a relocation - for this. So do what everyone else does and output a no-op. */ - outrel.r_info = ELF64_R_INFO (0, R_IA64_NONE); - outrel.r_addend = 0; - offset = 0; - } - outrel.r_offset = offset; - } - - bfd_elf64_swap_reloca_out (abfd, &outrel, - ((Elf64_External_Rela *) srel->contents - + srel->reloc_count++)); - BFD_ASSERT (sizeof(Elf64_External_Rela) * srel->reloc_count - <= srel->_cooked_size); -} - -/* Store an entry for target address TARGET_ADDR in the linkage table - and return the gp-relative address of the linkage table entry. */ - -static bfd_vma -set_got_entry (abfd, info, dyn_i, dynindx, addend, value, dyn_r_type) - bfd *abfd; - struct bfd_link_info *info; - struct elf64_ia64_dyn_sym_info *dyn_i; - long dynindx; - bfd_vma addend; - bfd_vma value; - unsigned int dyn_r_type; -{ - struct elf64_ia64_link_hash_table *ia64_info; - asection *got_sec; - - ia64_info = elf64_ia64_hash_table (info); - got_sec = ia64_info->got_sec; - - BFD_ASSERT ((dyn_i->got_offset & 7) == 0); - - if (! dyn_i->got_done) - { - dyn_i->got_done = true; - - /* Store the target address in the linkage table entry. */ - bfd_put_64 (abfd, value, got_sec->contents + dyn_i->got_offset); - - /* Install a dynamic relocation if needed. */ - if (info->shared - || elf64_ia64_dynamic_symbol_p (dyn_i->h, info) - || (dynindx != -1 && dyn_r_type == R_IA64_FPTR64LSB)) - { - if (dynindx == -1) - { - dyn_r_type = R_IA64_REL64LSB; - dynindx = 0; - addend = value; - } - - if (bfd_big_endian (abfd)) - { - switch (dyn_r_type) - { - case R_IA64_REL64LSB: - dyn_r_type = R_IA64_REL64MSB; - break; - case R_IA64_DIR64LSB: - dyn_r_type = R_IA64_DIR64MSB; - break; - case R_IA64_FPTR64LSB: - dyn_r_type = R_IA64_FPTR64MSB; - break; - default: - BFD_ASSERT (false); - break; - } - } - - elf64_ia64_install_dyn_reloc (abfd, NULL, got_sec, - ia64_info->rel_got_sec, - dyn_i->got_offset, dyn_r_type, - dynindx, addend); - } - } - - /* Return the address of the linkage table entry. */ - value = (got_sec->output_section->vma - + got_sec->output_offset - + dyn_i->got_offset); - - return value; -} - -/* Fill in a function descriptor consisting of the function's code - address and its global pointer. Return the descriptor's address. */ - -static bfd_vma -set_fptr_entry (abfd, info, dyn_i, value) - bfd *abfd; - struct bfd_link_info *info; - struct elf64_ia64_dyn_sym_info *dyn_i; - bfd_vma value; -{ - struct elf64_ia64_link_hash_table *ia64_info; - asection *fptr_sec; - - ia64_info = elf64_ia64_hash_table (info); - fptr_sec = ia64_info->fptr_sec; - - if (!dyn_i->fptr_done) - { - dyn_i->fptr_done = 1; - - /* Fill in the function descriptor. */ - bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset); - bfd_put_64 (abfd, _bfd_get_gp_value (abfd), - fptr_sec->contents + dyn_i->fptr_offset + 8); - } - - /* Return the descriptor's address. */ - value = (fptr_sec->output_section->vma - + fptr_sec->output_offset - + dyn_i->fptr_offset); - - return value; -} - -/* Fill in a PLTOFF entry consisting of the function's code address - and its global pointer. Return the descriptor's address. */ - -static bfd_vma -set_pltoff_entry (abfd, info, dyn_i, value, is_plt) - bfd *abfd; - struct bfd_link_info *info; - struct elf64_ia64_dyn_sym_info *dyn_i; - bfd_vma value; - boolean is_plt; -{ - struct elf64_ia64_link_hash_table *ia64_info; - asection *pltoff_sec; - - ia64_info = elf64_ia64_hash_table (info); - pltoff_sec = ia64_info->pltoff_sec; - - /* Don't do anything if this symbol uses a real PLT entry. In - that case, we'll fill this in during finish_dynamic_symbol. */ - if ((! dyn_i->want_plt || is_plt) - && !dyn_i->pltoff_done) - { - /* Fill in the function descriptor. */ - bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset); - bfd_put_64 (abfd, _bfd_get_gp_value (abfd), - pltoff_sec->contents + dyn_i->pltoff_offset + 8); - - /* Install dynamic relocations if needed. */ - if (!is_plt && info->shared) - { - unsigned int dyn_r_type; - - if (bfd_big_endian (abfd)) - dyn_r_type = R_IA64_REL64MSB; - else - dyn_r_type = R_IA64_REL64LSB; - - elf64_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec, - ia64_info->rel_pltoff_sec, - dyn_i->pltoff_offset, - dyn_r_type, 0, 0); - elf64_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec, - ia64_info->rel_pltoff_sec, - dyn_i->pltoff_offset + 8, - dyn_r_type, 0, 0); - } - - dyn_i->pltoff_done = 1; - } - - /* Return the descriptor's address. */ - value = (pltoff_sec->output_section->vma - + pltoff_sec->output_offset - + dyn_i->pltoff_offset); - - return value; -} - -static boolean -elf64_ia64_final_link (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - struct elf64_ia64_link_hash_table *ia64_info; - ia64_info = elf64_ia64_hash_table (info); - - /* Make sure we've got ourselves a nice fat __gp value. */ - if (!info->relocateable) - { - bfd_vma min_vma = (bfd_vma) -1, max_vma = 0; - bfd_vma min_short_vma = min_vma, max_short_vma = 0; - struct elf_link_hash_entry *gp; - bfd_vma gp_val; - asection *os; - - /* Find the min and max vma of all sections marked short. Also - collect min and max vma of any type, for use in selecting a - nice gp. */ - for (os = abfd->sections; os ; os = os->next) - { - bfd_vma lo, hi; - - if ((os->flags & SEC_ALLOC) == 0) - continue; - - lo = os->vma; - hi = os->vma + os->_raw_size; - if (hi < lo) - hi = (bfd_vma) -1; - - if (min_vma > lo) - min_vma = lo; - if (max_vma < hi) - max_vma = hi; - if (os->flags & SEC_SMALL_DATA) - { - if (min_short_vma > lo) - min_short_vma = lo; - if (max_short_vma < hi) - max_short_vma = hi; - } - } - - /* See if the user wants to force a value. */ - gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", false, - false, false); - - if (gp - && (gp->root.type == bfd_link_hash_defined - || gp->root.type == bfd_link_hash_defweak)) - { - asection *gp_sec = gp->root.u.def.section; - gp_val = (gp->root.u.def.value - + gp_sec->output_section->vma - + gp_sec->output_offset); - } - else - { - /* Pick a sensible value. */ - - asection *got_sec = ia64_info->got_sec; - - /* Start with just the address of the .got. */ - if (got_sec) - gp_val = got_sec->output_section->vma; - else if (max_short_vma != 0) - gp_val = min_short_vma; - else - gp_val = min_vma; - - /* If it is possible to address the entire image, but we - don't with the choice above, adjust. */ - if (max_vma - min_vma < 0x400000 - && max_vma - gp_val <= 0x200000 - && gp_val - min_vma > 0x200000) - gp_val = min_vma + 0x200000; - else if (max_short_vma != 0) - { - /* If we don't cover all the short data, adjust. */ - if (max_short_vma - gp_val >= 0x200000) - gp_val = min_short_vma + 0x200000; - - /* If we're addressing stuff past the end, adjust back. */ - if (gp_val > max_vma) - gp_val = max_vma - 0x200000 + 8; - } - } - - /* Validate whether all SHF_IA_64_SHORT sections are within - range of the chosen GP. */ - - if (max_short_vma != 0) - { - if (max_short_vma - min_short_vma >= 0x400000) - { - (*_bfd_error_handler) - (_("%s: short data segment overflowed (0x%lx >= 0x400000)"), - bfd_get_filename (abfd), - (unsigned long)(max_short_vma - min_short_vma)); - return false; - } - else if ((gp_val > min_short_vma - && gp_val - min_short_vma > 0x200000) - || (gp_val < max_short_vma - && max_short_vma - gp_val >= 0x200000)) - { - (*_bfd_error_handler) - (_("%s: __gp does not cover short data segment"), - bfd_get_filename (abfd)); - return false; - } - } - - _bfd_set_gp_value (abfd, gp_val); - } - - /* Tricky bits. DT_INIT and DT_FINI use a pltoff entry, which is - normally initialized in finish_dynamic_sections. Except that - we need all non-plt pltoff entries to be initialized before - finish_dynamic_symbols. This because the array of relocations - used for plt entries (aka DT_JMPREL) begins after all the - non-plt pltoff relocations. If the order gets confused, we - munge either the array or the array base. */ - if (ia64_info->root.dynamic_sections_created) - { - struct elf_link_hash_entry *h; - struct elf64_ia64_dyn_sym_info *dyn_i; - bfd_vma addr; - - if (info->init_function - && (h = elf_link_hash_lookup (elf_hash_table (info), - info->init_function, false, - false, false)) - && (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR - | ELF_LINK_HASH_DEF_REGULAR)) != 0) - { - dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false); - addr = (h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset - + h->root.u.def.value); - (void) set_pltoff_entry (abfd, info, dyn_i, addr, false); - } - - if (info->fini_function - && (h = elf_link_hash_lookup (elf_hash_table (info), - info->fini_function, false, - false, false)) - && (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR - | ELF_LINK_HASH_DEF_REGULAR)) != 0) - { - dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false); - addr = (h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset - + h->root.u.def.value); - (void) set_pltoff_entry (abfd, info, dyn_i, addr, false); - } - } - - /* Invoke the regular ELF backend linker to do all the work. */ - return bfd_elf64_bfd_final_link (abfd, info); -} - -static boolean -elf64_ia64_relocate_section (output_bfd, info, input_bfd, input_section, - contents, relocs, local_syms, local_sections) - bfd *output_bfd; - struct bfd_link_info *info; - bfd *input_bfd; - asection *input_section; - bfd_byte *contents; - Elf_Internal_Rela *relocs; - Elf_Internal_Sym *local_syms; - asection **local_sections; -{ - struct elf64_ia64_link_hash_table *ia64_info; - Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Rela *rel; - Elf_Internal_Rela *relend; - asection *srel; - boolean ret_val = true; /* for non-fatal errors */ - bfd_vma gp_val; - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - ia64_info = elf64_ia64_hash_table (info); - - /* Infect various flags from the input section to the output section. */ - if (info->relocateable) - { - bfd_vma flags; - - flags = elf_section_data(input_section)->this_hdr.sh_flags; - flags &= SHF_IA_64_NORECOV; - - elf_section_data(input_section->output_section) - ->this_hdr.sh_flags |= flags; - } - - gp_val = _bfd_get_gp_value (output_bfd); - srel = get_reloc_section (input_bfd, ia64_info, input_section, false); - - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; ++rel) - { - struct elf_link_hash_entry *h; - struct elf64_ia64_dyn_sym_info *dyn_i; - bfd_reloc_status_type r; - reloc_howto_type *howto; - unsigned long r_symndx; - Elf_Internal_Sym *sym; - unsigned int r_type; - bfd_vma value; - asection *sym_sec; - bfd_byte *hit_addr; - boolean dynamic_symbol_p; - boolean undef_weak_ref; - - r_type = ELF64_R_TYPE (rel->r_info); - if (r_type > R_IA64_MAX_RELOC_CODE) - { - (*_bfd_error_handler) - (_("%s: unknown relocation type %d"), - bfd_get_filename (input_bfd), (int)r_type); - bfd_set_error (bfd_error_bad_value); - ret_val = false; - continue; - } - howto = lookup_howto (r_type); - r_symndx = ELF64_R_SYM (rel->r_info); - - if (info->relocateable) - { - /* This is a relocateable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) - { - sym_sec = local_sections[r_symndx]; - rel->r_addend += sym_sec->output_offset; - } - } - continue; - } - - /* This is a final link. */ - - h = NULL; - sym = NULL; - sym_sec = NULL; - undef_weak_ref = false; - - if (r_symndx < symtab_hdr->sh_info) - { - /* Reloc against local symbol. */ - sym = local_syms + r_symndx; - sym_sec = local_sections[r_symndx]; - value = (sym_sec->output_section->vma - + sym_sec->output_offset - + sym->st_value); - } - else - { - long indx; - - /* Reloc against global symbol. */ - indx = r_symndx - symtab_hdr->sh_info; - h = elf_sym_hashes (input_bfd)[indx]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - value = 0; - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - sym_sec = h->root.u.def.section; - - /* Detect the cases that sym_sec->output_section is - expected to be NULL -- all cases in which the symbol - is defined in another shared module. This includes - PLT relocs for which we've created a PLT entry and - other relocs for which we're prepared to create - dynamic relocations. */ - /* ??? Just accept it NULL and continue. */ - - if (sym_sec->output_section != NULL) - { - value = (h->root.u.def.value - + sym_sec->output_section->vma - + sym_sec->output_offset); - } - } - else if (h->root.type == bfd_link_hash_undefweak) - undef_weak_ref = true; - else if (info->shared && !info->symbolic - && !info->no_undefined - && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) - ; - else - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, rel->r_offset, - (!info->shared || info->no_undefined - || ELF_ST_VISIBILITY (h->other))))) - return false; - ret_val = false; - continue; - } - } - - hit_addr = contents + rel->r_offset; - value += rel->r_addend; - dynamic_symbol_p = elf64_ia64_dynamic_symbol_p (h, info); - - switch (r_type) - { - case R_IA64_NONE: - case R_IA64_LDXMOV: - continue; - - case R_IA64_IMM14: - case R_IA64_IMM22: - case R_IA64_IMM64: - case R_IA64_DIR32MSB: - case R_IA64_DIR32LSB: - case R_IA64_DIR64MSB: - case R_IA64_DIR64LSB: - /* Install a dynamic relocation for this reloc. */ - if ((dynamic_symbol_p || info->shared) - && (input_section->flags & SEC_ALLOC) != 0) - { - unsigned int dyn_r_type; - long dynindx; - - BFD_ASSERT (srel != NULL); - - /* If we don't need dynamic symbol lookup, find a - matching RELATIVE relocation. */ - dyn_r_type = r_type; - if (dynamic_symbol_p) - dynindx = h->dynindx; - else - { - switch (r_type) - { - case R_IA64_DIR32MSB: - dyn_r_type = R_IA64_REL32MSB; - break; - case R_IA64_DIR32LSB: - dyn_r_type = R_IA64_REL32LSB; - break; - case R_IA64_DIR64MSB: - dyn_r_type = R_IA64_REL64MSB; - break; - case R_IA64_DIR64LSB: - dyn_r_type = R_IA64_REL64LSB; - break; - - default: - /* We can't represent this without a dynamic symbol. - Adjust the relocation to be against an output - section symbol, which are always present in the - dynamic symbol table. */ - /* ??? People shouldn't be doing non-pic code in - shared libraries. Hork. */ - (*_bfd_error_handler) - (_("%s: linking non-pic code in a shared library"), - bfd_get_filename (input_bfd)); - ret_val = false; - continue; - } - dynindx = 0; - } - - elf64_ia64_install_dyn_reloc (output_bfd, info, input_section, - srel, rel->r_offset, dyn_r_type, - dynindx, rel->r_addend); - } - /* FALLTHRU */ - - case R_IA64_LTV32MSB: - case R_IA64_LTV32LSB: - case R_IA64_LTV64MSB: - case R_IA64_LTV64LSB: - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - break; - - case R_IA64_GPREL22: - case R_IA64_GPREL64I: - case R_IA64_GPREL32MSB: - case R_IA64_GPREL32LSB: - case R_IA64_GPREL64MSB: - case R_IA64_GPREL64LSB: - if (dynamic_symbol_p) - { - (*_bfd_error_handler) - (_("%s: @gprel relocation against dynamic symbol %s"), - bfd_get_filename (input_bfd), h->root.root.string); - ret_val = false; - continue; - } - value -= gp_val; - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - break; - - case R_IA64_LTOFF22: - case R_IA64_LTOFF22X: - case R_IA64_LTOFF64I: - dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false); - value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1), - rel->r_addend, value, R_IA64_DIR64LSB); - value -= gp_val; - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - break; - - case R_IA64_PLTOFF22: - case R_IA64_PLTOFF64I: - case R_IA64_PLTOFF64MSB: - case R_IA64_PLTOFF64LSB: - dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false); - value = set_pltoff_entry (output_bfd, info, dyn_i, value, false); - value -= gp_val; - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - break; - - case R_IA64_FPTR64I: - case R_IA64_FPTR32MSB: - case R_IA64_FPTR32LSB: - case R_IA64_FPTR64MSB: - case R_IA64_FPTR64LSB: - dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false); - if (dyn_i->want_fptr) - { - if (!undef_weak_ref) - value = set_fptr_entry (output_bfd, info, dyn_i, value); - } - else - { - long dynindx; - - /* Otherwise, we expect the dynamic linker to create - the entry. */ - - if (h) - { - if (h->dynindx != -1) - dynindx = h->dynindx; - else - dynindx = (_bfd_elf_link_lookup_local_dynindx - (info, h->root.u.def.section->owner, - global_sym_index (h))); - } - else - { - dynindx = (_bfd_elf_link_lookup_local_dynindx - (info, input_bfd, r_symndx)); - } - - elf64_ia64_install_dyn_reloc (output_bfd, info, input_section, - srel, rel->r_offset, r_type, - dynindx, rel->r_addend); - value = 0; - } - - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - break; - - case R_IA64_LTOFF_FPTR22: - case R_IA64_LTOFF_FPTR64I: - case R_IA64_LTOFF_FPTR64MSB: - case R_IA64_LTOFF_FPTR64LSB: - { - long dynindx; - - dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false); - if (dyn_i->want_fptr) - { - BFD_ASSERT (h == NULL || h->dynindx == -1) - if (!undef_weak_ref) - value = set_fptr_entry (output_bfd, info, dyn_i, value); - dynindx = -1; - } - else - { - /* Otherwise, we expect the dynamic linker to create - the entry. */ - if (h) - { - if (h->dynindx != -1) - dynindx = h->dynindx; - else - dynindx = (_bfd_elf_link_lookup_local_dynindx - (info, h->root.u.def.section->owner, - global_sym_index (h))); - } - else - dynindx = (_bfd_elf_link_lookup_local_dynindx - (info, input_bfd, r_symndx)); - value = 0; - } - - value = set_got_entry (output_bfd, info, dyn_i, dynindx, - rel->r_addend, value, R_IA64_FPTR64LSB); - value -= gp_val; - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - } - break; - - case R_IA64_PCREL32MSB: - case R_IA64_PCREL32LSB: - case R_IA64_PCREL64MSB: - case R_IA64_PCREL64LSB: - /* Install a dynamic relocation for this reloc. */ - if (dynamic_symbol_p) - { - BFD_ASSERT (srel != NULL); - - elf64_ia64_install_dyn_reloc (output_bfd, info, input_section, - srel, rel->r_offset, r_type, - h->dynindx, rel->r_addend); - } - goto finish_pcrel; - - case R_IA64_PCREL21BI: - case R_IA64_PCREL21F: - case R_IA64_PCREL21M: - /* ??? These two are only used for speculation fixup code. - They should never be dynamic. */ - if (dynamic_symbol_p) - { - (*_bfd_error_handler) - (_("%s: dynamic relocation against speculation fixup"), - bfd_get_filename (input_bfd)); - ret_val = false; - continue; - } - if (undef_weak_ref) - { - (*_bfd_error_handler) - (_("%s: speculation fixup against undefined weak symbol"), - bfd_get_filename (input_bfd)); - ret_val = false; - continue; - } - goto finish_pcrel; - - case R_IA64_PCREL21B: - case R_IA64_PCREL60B: - /* We should have created a PLT entry for any dynamic symbol. */ - dyn_i = NULL; - if (h) - dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false); - - if (dyn_i && dyn_i->want_plt2) - { - /* Should have caught this earlier. */ - BFD_ASSERT (rel->r_addend == 0); - - value = (ia64_info->plt_sec->output_section->vma - + ia64_info->plt_sec->output_offset - + dyn_i->plt2_offset); - } - else - { - /* Since there's no PLT entry, Validate that this is - locally defined. */ - BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL); - - /* If the symbol is undef_weak, we shouldn't be trying - to call it. There's every chance that we'd wind up - with an out-of-range fixup here. Don't bother setting - any value at all. */ - if (undef_weak_ref) - continue; - } - goto finish_pcrel; - - case R_IA64_PCREL22: - case R_IA64_PCREL64I: - finish_pcrel: - /* Make pc-relative. */ - value -= (input_section->output_section->vma - + input_section->output_offset - + rel->r_offset) & ~ (bfd_vma) 0x3; - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - break; - - case R_IA64_SEGREL32MSB: - case R_IA64_SEGREL32LSB: - case R_IA64_SEGREL64MSB: - case R_IA64_SEGREL64LSB: - { - struct elf_segment_map *m; - Elf_Internal_Phdr *p; - - /* Find the segment that contains the output_section. */ - for (m = elf_tdata (output_bfd)->segment_map, - p = elf_tdata (output_bfd)->phdr; - m != NULL; - m = m->next, p++) - { - int i; - for (i = m->count - 1; i >= 0; i--) - if (m->sections[i] == sym_sec->output_section) - break; - if (i >= 0) - break; - } - - if (m == NULL) - { - /* If the input section was discarded from the output, then - do nothing. */ - - if (bfd_is_abs_section (sym_sec->output_section)) - r = bfd_reloc_ok; - else - r = bfd_reloc_notsupported; - } - else - { - /* The VMA of the segment is the vaddr of the associated - program header. */ - if (value > p->p_vaddr) - value -= p->p_vaddr; - else - value = 0; - r = elf64_ia64_install_value (output_bfd, hit_addr, value, - r_type); - } - break; - } - - case R_IA64_SECREL32MSB: - case R_IA64_SECREL32LSB: - case R_IA64_SECREL64MSB: - case R_IA64_SECREL64LSB: - /* Make output-section relative. */ - if (value > input_section->output_section->vma) - value -= input_section->output_section->vma; - else - value = 0; - r = elf64_ia64_install_value (output_bfd, hit_addr, value, r_type); - break; - - case R_IA64_SEGBASE: - - case R_IA64_REL32MSB: - case R_IA64_REL32LSB: - case R_IA64_REL64MSB: - case R_IA64_REL64LSB: - - case R_IA64_IPLTMSB: - case R_IA64_IPLTLSB: - case R_IA64_EPLTMSB: - case R_IA64_EPLTLSB: - case R_IA64_COPY: - - case R_IA64_TPREL22: - case R_IA64_TPREL64MSB: - case R_IA64_TPREL64LSB: - case R_IA64_LTOFF_TP22: - default: - r = bfd_reloc_notsupported; - break; - } - - switch (r) - { - case bfd_reloc_ok: - break; - - case bfd_reloc_undefined: - /* This can happen for global table relative relocs if - __gp is undefined. This is a panic situation so we - don't try to continue. */ - (*info->callbacks->undefined_symbol) - (info, "__gp", input_bfd, input_section, rel->r_offset, 1); - return false; - - case bfd_reloc_notsupported: - { - const char *name; - - if (h) - name = h->root.root.string; - else - { - name = bfd_elf_string_from_elf_section (input_bfd, - symtab_hdr->sh_link, - sym->st_name); - if (name == NULL) - return false; - if (*name == '\0') - name = bfd_section_name (input_bfd, input_section); - } - if (!(*info->callbacks->warning) (info, _("unsupported reloc"), - name, input_bfd, - input_section, rel->r_offset)) - return false; - ret_val = false; - } - break; - - case bfd_reloc_dangerous: - case bfd_reloc_outofrange: - case bfd_reloc_overflow: - default: - { - const char *name; - - if (h) - name = h->root.root.string; - else - { - name = bfd_elf_string_from_elf_section (input_bfd, - symtab_hdr->sh_link, - sym->st_name); - if (name == NULL) - return false; - if (*name == '\0') - name = bfd_section_name (input_bfd, input_section); - } - if (!(*info->callbacks->reloc_overflow) (info, name, - howto->name, 0, - input_bfd, - input_section, - rel->r_offset)) - return false; - ret_val = false; - } - break; - } - } - - return ret_val; -} - -static boolean -elf64_ia64_finish_dynamic_symbol (output_bfd, info, h, sym) - bfd *output_bfd; - struct bfd_link_info *info; - struct elf_link_hash_entry *h; - Elf_Internal_Sym *sym; -{ - struct elf64_ia64_link_hash_table *ia64_info; - struct elf64_ia64_dyn_sym_info *dyn_i; - - ia64_info = elf64_ia64_hash_table (info); - dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false); - - /* Fill in the PLT data, if required. */ - if (dyn_i && dyn_i->want_plt) - { - Elf_Internal_Rela outrel; - bfd_byte *loc; - asection *plt_sec; - bfd_vma plt_addr, pltoff_addr, gp_val, index; - Elf64_External_Rela *rel; - - gp_val = _bfd_get_gp_value (output_bfd); - - /* Initialize the minimal PLT entry. */ - - index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE; - plt_sec = ia64_info->plt_sec; - loc = plt_sec->contents + dyn_i->plt_offset; - - memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE); - elf64_ia64_install_value (output_bfd, loc, index, R_IA64_IMM22); - elf64_ia64_install_value (output_bfd, loc+2, -dyn_i->plt_offset, - R_IA64_PCREL21B); - - plt_addr = (plt_sec->output_section->vma - + plt_sec->output_offset - + dyn_i->plt_offset); - pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, true); - - /* Initialize the FULL PLT entry, if needed. */ - if (dyn_i->want_plt2) - { - loc = plt_sec->contents + dyn_i->plt2_offset; - - memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE); - elf64_ia64_install_value (output_bfd, loc, pltoff_addr - gp_val, - R_IA64_IMM22); - - /* Mark the symbol as undefined, rather than as defined in the - plt section. Leave the value alone. */ - /* ??? We didn't redefine it in adjust_dynamic_symbol in the - first place. But perhaps elflink.h did some for us. */ - if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) - sym->st_shndx = SHN_UNDEF; - } - - /* Create the dynamic relocation. */ - outrel.r_offset = pltoff_addr; - if (bfd_little_endian (output_bfd)) - outrel.r_info = ELF64_R_INFO (h->dynindx, R_IA64_IPLTLSB); - else - outrel.r_info = ELF64_R_INFO (h->dynindx, R_IA64_IPLTMSB); - outrel.r_addend = 0; - - /* This is fun. In the .IA_64.pltoff section, we've got entries - that correspond both to real PLT entries, and those that - happened to resolve to local symbols but need to be created - to satisfy @pltoff relocations. The .rela.IA_64.pltoff - relocations for the real PLT should come at the end of the - section, so that they can be indexed by plt entry at runtime. - - We emitted all of the relocations for the non-PLT @pltoff - entries during relocate_section. So we can consider the - existing sec->reloc_count to be the base of the array of - PLT relocations. */ - - rel = (Elf64_External_Rela *)ia64_info->rel_pltoff_sec->contents; - rel += ia64_info->rel_pltoff_sec->reloc_count; - - bfd_elf64_swap_reloca_out (output_bfd, &outrel, rel + index); - } - - /* Mark some specially defined symbols as absolute. */ - if (strcmp (h->root.root.string, "_DYNAMIC") == 0 - || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 - || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0) - sym->st_shndx = SHN_ABS; - - return true; -} - -static boolean -elf64_ia64_finish_dynamic_sections (abfd, info) - bfd *abfd; - struct bfd_link_info *info; -{ - struct elf64_ia64_link_hash_table *ia64_info; - bfd *dynobj; - - ia64_info = elf64_ia64_hash_table (info); - dynobj = ia64_info->root.dynobj; - - if (elf_hash_table (info)->dynamic_sections_created) - { - Elf64_External_Dyn *dyncon, *dynconend; - asection *sdyn, *sgotplt; - bfd_vma gp_val; - - sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); - sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); - BFD_ASSERT (sdyn != NULL); - dyncon = (Elf64_External_Dyn *) sdyn->contents; - dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); - - gp_val = _bfd_get_gp_value (abfd); - - for (; dyncon < dynconend; dyncon++) - { - Elf_Internal_Dyn dyn; - const char *name; - asection *s; - - bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); - - switch (dyn.d_tag) - { - case DT_PLTGOT: - dyn.d_un.d_ptr = gp_val; - break; - - case DT_PLTRELSZ: - dyn.d_un.d_val = (ia64_info->minplt_entries - * sizeof (Elf64_External_Rela)); - break; - - case DT_JMPREL: - /* See the comment above in finish_dynamic_symbol. */ - dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma - + ia64_info->rel_pltoff_sec->output_offset - + (ia64_info->rel_pltoff_sec->reloc_count - * sizeof (Elf64_External_Rela))); - break; - - case DT_IA_64_PLT_RESERVE: - dyn.d_un.d_ptr = (sgotplt->output_section->vma - + sgotplt->output_offset); - break; - - case DT_RELASZ: - /* Do not have RELASZ include JMPREL. This makes things - easier on ld.so. This is not what the rest of BFD set up. */ - dyn.d_un.d_val -= (ia64_info->minplt_entries - * sizeof (Elf64_External_Rela)); - break; - - case DT_INIT: - case DT_FINI: - { - struct elf_link_hash_entry *h; - struct elf64_ia64_dyn_sym_info *dyn_i; - const char *which; - - if (dyn.d_tag == DT_INIT) - which = info->init_function; - else - which = info->fini_function; - - h = elf_link_hash_lookup (elf_hash_table (info), which, - false, false, false); - dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false); - dyn.d_un.d_ptr = set_pltoff_entry (abfd, info, dyn_i, - dyn.d_un.d_ptr, 0); - } - } - - bfd_elf64_swap_dyn_out (abfd, &dyn, dyncon); - } - - /* Initialize the PLT0 entry */ - if (ia64_info->plt_sec) - { - bfd_byte *loc = ia64_info->plt_sec->contents; - bfd_vma pltres; - - memcpy (loc, plt_header, PLT_HEADER_SIZE); - - pltres = (sgotplt->output_section->vma - + sgotplt->output_offset - - gp_val); - - elf64_ia64_install_value (abfd, loc+1, pltres, R_IA64_GPREL22); - } - } - - return true; -} - -/* ELF file flag handling: */ - -/* Function to keep IA-64 specific file flags. */ -static boolean -elf64_ia64_set_private_flags (abfd, flags) - bfd *abfd; - flagword flags; -{ - BFD_ASSERT (!elf_flags_init (abfd) - || elf_elfheader (abfd)->e_flags == flags); - - elf_elfheader (abfd)->e_flags = flags; - elf_flags_init (abfd) = true; - return true; -} - -/* Copy backend specific data from one object module to another */ -static boolean -elf64_ia64_copy_private_bfd_data (ibfd, obfd) - bfd *ibfd, *obfd; -{ - if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return true; - - BFD_ASSERT (!elf_flags_init (obfd) - || (elf_elfheader (obfd)->e_flags - == elf_elfheader (ibfd)->e_flags)); - - elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; - elf_flags_init (obfd) = true; - return true; -} - -/* Merge backend specific data from an object file to the output - object file when linking. */ -static boolean -elf64_ia64_merge_private_bfd_data (ibfd, obfd) - bfd *ibfd, *obfd; -{ - flagword out_flags; - flagword in_flags; - boolean ok = true; - - /* Don't even pretend to support mixed-format linking. */ - if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return false; - - in_flags = elf_elfheader (ibfd)->e_flags; - out_flags = elf_elfheader (obfd)->e_flags; - - if (! elf_flags_init (obfd)) - { - elf_flags_init (obfd) = true; - elf_elfheader (obfd)->e_flags = in_flags; - - if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) - && bfd_get_arch_info (obfd)->the_default) - { - return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), - bfd_get_mach (ibfd)); - } - - return true; - } - - /* Check flag compatibility. */ - if (in_flags == out_flags) - return true; - - if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL)) - { - (*_bfd_error_handler) - (_("%s: linking trap-on-NULL-dereference with non-trapping files"), - bfd_get_filename (ibfd)); - - bfd_set_error (bfd_error_bad_value); - ok = false; - } - if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE)) - { - (*_bfd_error_handler) - (_("%s: linking big-endian files with little-endian files"), - bfd_get_filename (ibfd)); - - bfd_set_error (bfd_error_bad_value); - ok = false; - } - if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64)) - { - (*_bfd_error_handler) - (_("%s: linking 64-bit files with 32-bit files"), - bfd_get_filename (ibfd)); - - bfd_set_error (bfd_error_bad_value); - ok = false; - } - - return ok; -} - -static boolean -elf64_ia64_print_private_bfd_data (abfd, ptr) - bfd *abfd; - PTR ptr; -{ - FILE *file = (FILE *) ptr; - flagword flags = elf_elfheader (abfd)->e_flags; - - BFD_ASSERT (abfd != NULL && ptr != NULL); - - fprintf (file, "private flags = %s%s%s%s\n", - (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "", - (flags & EF_IA_64_EXT) ? "EXT, " : "", - (flags & EF_IA_64_BE) ? "BE, " : "LE, ", - (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32"); - _bfd_elf_print_private_bfd_data (abfd, ptr); - return true; -} - -#define TARGET_LITTLE_SYM bfd_elf64_ia64_little_vec -#define TARGET_LITTLE_NAME "elf64-ia64-little" -#define TARGET_BIG_SYM bfd_elf64_ia64_big_vec -#define TARGET_BIG_NAME "elf64-ia64-big" -#define ELF_ARCH bfd_arch_ia64 -#define ELF_MACHINE_CODE EM_IA_64 -#define ELF_MACHINE_ALT1 1999 /* EAS2.3 */ -#define ELF_MACHINE_ALT2 1998 /* EAS2.2 */ -#define ELF_MAXPAGESIZE 0x10000 /* 64KB */ - -#define elf_backend_section_from_shdr \ - elf64_ia64_section_from_shdr -#define elf_backend_fake_sections \ - elf64_ia64_fake_sections -#define elf_backend_add_symbol_hook \ - elf64_ia64_add_symbol_hook -#define elf_backend_additional_program_headers \ - elf64_ia64_additional_program_headers -#define elf_backend_modify_segment_map \ - elf64_ia64_modify_segment_map -#define elf_info_to_howto \ - elf64_ia64_info_to_howto - -#define bfd_elf64_bfd_reloc_type_lookup \ - elf64_ia64_reloc_type_lookup -#define bfd_elf64_bfd_is_local_label_name \ - elf64_ia64_is_local_label_name -#define bfd_elf64_bfd_relax_section \ - elf64_ia64_relax_section - -/* Stuff for the BFD linker: */ -#define bfd_elf64_bfd_link_hash_table_create \ - elf64_ia64_hash_table_create -#define elf_backend_create_dynamic_sections \ - elf64_ia64_create_dynamic_sections -#define elf_backend_check_relocs \ - elf64_ia64_check_relocs -#define elf_backend_adjust_dynamic_symbol \ - elf64_ia64_adjust_dynamic_symbol -#define elf_backend_size_dynamic_sections \ - elf64_ia64_size_dynamic_sections -#define elf_backend_relocate_section \ - elf64_ia64_relocate_section -#define elf_backend_finish_dynamic_symbol \ - elf64_ia64_finish_dynamic_symbol -#define elf_backend_finish_dynamic_sections \ - elf64_ia64_finish_dynamic_sections -#define bfd_elf64_bfd_final_link \ - elf64_ia64_final_link - -#define bfd_elf64_bfd_copy_private_bfd_data \ - elf64_ia64_copy_private_bfd_data -#define bfd_elf64_bfd_merge_private_bfd_data \ - elf64_ia64_merge_private_bfd_data -#define bfd_elf64_bfd_set_private_flags \ - elf64_ia64_set_private_flags -#define bfd_elf64_bfd_print_private_bfd_data \ - elf64_ia64_print_private_bfd_data - -#define elf_backend_plt_readonly 1 -#define elf_backend_want_plt_sym 0 -#define elf_backend_plt_alignment 5 -#define elf_backend_got_header_size 0 -#define elf_backend_plt_header_size PLT_HEADER_SIZE -#define elf_backend_want_got_plt 1 -#define elf_backend_may_use_rel_p 1 -#define elf_backend_may_use_rela_p 1 -#define elf_backend_default_use_rela_p 1 -#define elf_backend_want_dynbss 0 -#define elf_backend_copy_indirect_symbol elf64_ia64_hash_copy_indirect -#define elf_backend_hide_symbol elf64_ia64_hash_hide_symbol - -#include "elf64-target.h" |