/* IA-64 support for 64-bit ELF
- Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1998-2016 Free Software Foundation, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "opcode/ia64.h"
#include "elf/ia64.h"
#include "objalloc.h"
#include "hashtab.h"
+#include "bfd_stdint.h"
+#include "elfxx-ia64.h"
/* THE RULES for all the stuff the linker creates --
MIN_PLT Created by PLTOFF entries against dynamic symbols. This
does not require dynamic relocations. */
-#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 elfNN_ia64_dyn_sym_info
-{
- /* The addend for which this entry is relevant. */
- bfd_vma addend;
-
- /* Next addend in the list. */
- struct elfNN_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;
- bfd_vma tprel_offset;
- bfd_vma dtpmod_offset;
- bfd_vma dtprel_offset;
-
- /* The symbol table entry, if any, that this was derived from. */
- struct elf_link_hash_entry *h;
-
- /* Used to count non-got, non-plt relocations for delayed sizing
- of relocation sections. */
- struct elfNN_ia64_dyn_reloc_entry
- {
- struct elfNN_ia64_dyn_reloc_entry *next;
- asection *srel;
- int type;
- int count;
-
- /* Is this reloc against readonly section? */
- bfd_boolean reltext;
- } *reloc_entries;
-
- /* TRUE when the section contents have been updated. */
- unsigned got_done : 1;
- unsigned fptr_done : 1;
- unsigned pltoff_done : 1;
- unsigned tprel_done : 1;
- unsigned dtpmod_done : 1;
- unsigned dtprel_done : 1;
-
- /* TRUE for the different kinds of linker data we want created. */
- unsigned want_got : 1;
- unsigned want_gotx : 1;
- unsigned want_fptr : 1;
- unsigned want_ltoff_fptr : 1;
- unsigned want_plt : 1;
- unsigned want_plt2 : 1;
- unsigned want_pltoff : 1;
- unsigned want_tprel : 1;
- unsigned want_dtpmod : 1;
- unsigned want_dtprel : 1;
-};
-
-struct elfNN_ia64_local_hash_entry
-{
- int id;
- unsigned int r_sym;
- struct elfNN_ia64_dyn_sym_info *info;
-
- /* TRUE if this hash entry's addends was translated for
- SHF_MERGE optimization. */
- unsigned sec_merge_done : 1;
-};
-
-struct elfNN_ia64_link_hash_entry
-{
- struct elf_link_hash_entry root;
- struct elfNN_ia64_dyn_sym_info *info;
-};
-
-struct elfNN_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 *rel_fptr_sec; /* dynamic relocation section for same */
- 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 */
- unsigned reltext : 1; /* are there relocs against readonly sections? */
- unsigned self_dtpmod_done : 1;/* has self DTPMOD entry been finished? */
- bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry */
-
- htab_t loc_hash_table;
- void *loc_hash_memory;
-};
-
-struct elfNN_ia64_allocate_data
-{
- struct bfd_link_info *info;
- bfd_size_type ofs;
-};
-
-#define elfNN_ia64_hash_table(p) \
- ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
-
-static bfd_reloc_status_type elfNN_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 *elfNN_ia64_reloc_type_lookup
- PARAMS ((bfd *abfd, bfd_reloc_code_real_type bfd_code));
-static void elfNN_ia64_info_to_howto
- PARAMS ((bfd *abfd, arelent *bfd_reloc, Elf_Internal_Rela *elf_reloc));
-static bfd_boolean elfNN_ia64_relax_section
- PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info,
- bfd_boolean *again));
-static void elfNN_ia64_relax_ldxmov
- PARAMS((bfd_byte *contents, bfd_vma off));
-static bfd_boolean is_unwind_section_name
- PARAMS ((bfd *abfd, const char *));
-static bfd_boolean elfNN_ia64_section_from_shdr
- PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
-static bfd_boolean elfNN_ia64_section_flags
- PARAMS ((flagword *, const Elf_Internal_Shdr *));
-static bfd_boolean elfNN_ia64_fake_sections
- PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, asection *sec));
-static void elfNN_ia64_final_write_processing
- PARAMS ((bfd *abfd, bfd_boolean linker));
-static bfd_boolean elfNN_ia64_add_symbol_hook
- PARAMS ((bfd *abfd, struct bfd_link_info *info, Elf_Internal_Sym *sym,
- const char **namep, flagword *flagsp, asection **secp,
- bfd_vma *valp));
-static int elfNN_ia64_additional_program_headers
- PARAMS ((bfd *abfd));
-static bfd_boolean elfNN_ia64_modify_segment_map
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_boolean elfNN_ia64_is_local_label_name
- PARAMS ((bfd *abfd, const char *name));
-static bfd_boolean elfNN_ia64_dynamic_symbol_p
- PARAMS ((struct elf_link_hash_entry *h, struct bfd_link_info *info, int));
-static struct bfd_hash_entry *elfNN_ia64_new_elf_hash_entry
- PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table,
- const char *string));
-static void elfNN_ia64_hash_copy_indirect
- PARAMS ((const struct elf_backend_data *, struct elf_link_hash_entry *,
- struct elf_link_hash_entry *));
-static void elfNN_ia64_hash_hide_symbol
- PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
-static hashval_t elfNN_ia64_local_htab_hash PARAMS ((const void *));
-static int elfNN_ia64_local_htab_eq PARAMS ((const void *ptr1,
- const void *ptr2));
-static struct bfd_link_hash_table *elfNN_ia64_hash_table_create
- PARAMS ((bfd *abfd));
-static void elfNN_ia64_hash_table_free
- PARAMS ((struct bfd_link_hash_table *hash));
-static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
- PARAMS ((struct bfd_hash_entry *, PTR));
-static int elfNN_ia64_local_dyn_sym_thunk
- PARAMS ((void **, PTR));
-static void elfNN_ia64_dyn_sym_traverse
- PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
- bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR),
- PTR info));
-static bfd_boolean elfNN_ia64_create_dynamic_sections
- PARAMS ((bfd *abfd, struct bfd_link_info *info));
-static struct elfNN_ia64_local_hash_entry * get_local_sym_hash
- PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
- bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create));
-static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
- PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
- struct elf_link_hash_entry *h,
- bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create));
-static asection *get_got
- PARAMS ((bfd *abfd, struct bfd_link_info *info,
- struct elfNN_ia64_link_hash_table *ia64_info));
-static asection *get_fptr
- PARAMS ((bfd *abfd, struct bfd_link_info *info,
- struct elfNN_ia64_link_hash_table *ia64_info));
-static asection *get_pltoff
- PARAMS ((bfd *abfd, struct bfd_link_info *info,
- struct elfNN_ia64_link_hash_table *ia64_info));
-static asection *get_reloc_section
- PARAMS ((bfd *abfd, struct elfNN_ia64_link_hash_table *ia64_info,
- asection *sec, bfd_boolean create));
-static bfd_boolean elfNN_ia64_check_relocs
- PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec,
- const Elf_Internal_Rela *relocs));
-static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
- PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h));
-static long global_sym_index
- PARAMS ((struct elf_link_hash_entry *h));
-static bfd_boolean allocate_fptr
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean allocate_global_data_got
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean allocate_global_fptr_got
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean allocate_local_got
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean allocate_pltoff_entries
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean allocate_plt_entries
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean allocate_plt2_entries
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean allocate_dynrel_entries
- PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
-static bfd_boolean elfNN_ia64_size_dynamic_sections
- PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
-static bfd_reloc_status_type elfNN_ia64_install_value
- PARAMS ((bfd_byte *hit_addr, bfd_vma val, unsigned int r_type));
-static void elfNN_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 elfNN_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 elfNN_ia64_dyn_sym_info *dyn_i,
- bfd_vma value));
-static bfd_vma set_pltoff_entry
- PARAMS ((bfd *abfd, struct bfd_link_info *info,
- struct elfNN_ia64_dyn_sym_info *dyn_i,
- bfd_vma value, bfd_boolean));
-static bfd_vma elfNN_ia64_tprel_base
- PARAMS ((struct bfd_link_info *info));
-static bfd_vma elfNN_ia64_dtprel_base
- PARAMS ((struct bfd_link_info *info));
-static int elfNN_ia64_unwind_entry_compare
- PARAMS ((const PTR, const PTR));
-static bfd_boolean elfNN_ia64_choose_gp
- PARAMS ((bfd *abfd, struct bfd_link_info *info));
-static bfd_boolean elfNN_ia64_final_link
- PARAMS ((bfd *abfd, struct bfd_link_info *info));
-static bfd_boolean elfNN_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 bfd_boolean elfNN_ia64_finish_dynamic_symbol
- PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
- struct elf_link_hash_entry *h, Elf_Internal_Sym *sym));
-static bfd_boolean elfNN_ia64_finish_dynamic_sections
- PARAMS ((bfd *abfd, struct bfd_link_info *info));
-static bfd_boolean elfNN_ia64_set_private_flags
- PARAMS ((bfd *abfd, flagword flags));
-static bfd_boolean elfNN_ia64_merge_private_bfd_data
- PARAMS ((bfd *ibfd, bfd *obfd));
-static bfd_boolean elfNN_ia64_print_private_bfd_data
- PARAMS ((bfd *abfd, PTR ptr));
-static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
- PARAMS ((const Elf_Internal_Rela *));
-static bfd_boolean elfNN_ia64_hpux_vec
- PARAMS ((const bfd_target *vec));
-static void elfNN_hpux_post_process_headers
- PARAMS ((bfd *abfd, struct bfd_link_info *info));
-bfd_boolean elfNN_hpux_backend_section_from_bfd_section
- PARAMS ((bfd *abfd, asection *sec, int *retval));
-\f
/* ia64-specific relocation. */
+#define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
+
/* Perform a relocation. Not much to do here as all the hard work is
done in elfNN_ia64_final_link_relocate. */
static bfd_reloc_status_type
-elfNN_ia64_reloc (abfd, reloc, sym, data, input_section,
- output_bfd, error_message)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *reloc;
- asymbol *sym ATTRIBUTE_UNUSED;
- PTR data ATTRIBUTE_UNUSED;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
+ia64_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc,
+ asymbol *sym ATTRIBUTE_UNUSED,
+ PTR data ATTRIBUTE_UNUSED, asection *input_section,
+ bfd *output_bfd, char **error_message)
{
if (output_bfd)
{
if (input_section->flags & SEC_DEBUGGING)
return bfd_reloc_continue;
- *error_message = "Unsupported call to elfNN_ia64_reloc";
+ *error_message = "Unsupported call to ia64_elf_reloc";
return bfd_reloc_notsupported;
}
#define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
- elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
+ ia64_elf_reloc, NAME, FALSE, 0, -1, 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_NONE, "NONE", 3, FALSE, TRUE),
IA64_HOWTO (R_IA64_IMM14, "IMM14", 0, FALSE, TRUE),
IA64_HOWTO (R_IA64_IMM22, "IMM22", 0, FALSE, TRUE),
IA64_HOWTO (R_IA64_TPREL64LSB, "TPREL64LSB", 4, FALSE, FALSE),
IA64_HOWTO (R_IA64_LTOFF_TPREL22, "LTOFF_TPREL22", 0, FALSE, FALSE),
- IA64_HOWTO (R_IA64_DTPMOD64MSB, "TPREL64MSB", 4, FALSE, FALSE),
- IA64_HOWTO (R_IA64_DTPMOD64LSB, "TPREL64LSB", 4, FALSE, FALSE),
+ IA64_HOWTO (R_IA64_DTPMOD64MSB, "DTPMOD64MSB", 4, FALSE, FALSE),
+ IA64_HOWTO (R_IA64_DTPMOD64LSB, "DTPMOD64LSB", 4, FALSE, FALSE),
IA64_HOWTO (R_IA64_LTOFF_DTPMOD22, "LTOFF_DTPMOD22", 0, FALSE, FALSE),
IA64_HOWTO (R_IA64_DTPREL14, "DTPREL14", 0, FALSE, FALSE),
/* Given a BFD reloc type, return the matching HOWTO structure. */
-static reloc_howto_type *
-lookup_howto (rtype)
- unsigned int rtype;
+reloc_howto_type *
+ia64_elf_lookup_howto (unsigned int rtype)
{
static int inited = 0;
int i;
elf_code_to_howto_index[ia64_howto_table[i].type] = i;
}
- BFD_ASSERT (rtype <= R_IA64_MAX_RELOC_CODE);
+ if (rtype > R_IA64_MAX_RELOC_CODE)
+ return 0;
i = elf_code_to_howto_index[rtype];
if (i >= NELEMS (ia64_howto_table))
return 0;
return ia64_howto_table + i;
}
-static reloc_howto_type*
-elfNN_ia64_reloc_type_lookup (abfd, bfd_code)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type bfd_code;
+reloc_howto_type*
+ia64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type bfd_code)
{
unsigned int rtype;
default: return 0;
}
- return lookup_howto (rtype);
-}
+ return ia64_elf_lookup_howto (rtype);
+}
+
+reloc_howto_type *
+ia64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (ia64_howto_table) / sizeof (ia64_howto_table[0]);
+ i++)
+ if (ia64_howto_table[i].name != NULL
+ && strcasecmp (ia64_howto_table[i].name, r_name) == 0)
+ return &ia64_howto_table[i];
+
+ return NULL;
+}
+
+#define BTYPE_SHIFT 6
+#define Y_SHIFT 26
+#define X6_SHIFT 27
+#define X4_SHIFT 27
+#define X3_SHIFT 33
+#define X2_SHIFT 31
+#define X_SHIFT 33
+#define OPCODE_SHIFT 37
+
+#define OPCODE_BITS (0xfLL << OPCODE_SHIFT)
+#define X6_BITS (0x3fLL << X6_SHIFT)
+#define X4_BITS (0xfLL << X4_SHIFT)
+#define X3_BITS (0x7LL << X3_SHIFT)
+#define X2_BITS (0x3LL << X2_SHIFT)
+#define X_BITS (0x1LL << X_SHIFT)
+#define Y_BITS (0x1LL << Y_SHIFT)
+#define BTYPE_BITS (0x7LL << BTYPE_SHIFT)
+#define PREDICATE_BITS (0x3fLL)
+
+#define IS_NOP_B(i) \
+ (((i) & (OPCODE_BITS | X6_BITS)) == (2LL << OPCODE_SHIFT))
+#define IS_NOP_F(i) \
+ (((i) & (OPCODE_BITS | X_BITS | X6_BITS | Y_BITS)) \
+ == (0x1LL << X6_SHIFT))
+#define IS_NOP_I(i) \
+ (((i) & (OPCODE_BITS | X3_BITS | X6_BITS | Y_BITS)) \
+ == (0x1LL << X6_SHIFT))
+#define IS_NOP_M(i) \
+ (((i) & (OPCODE_BITS | X3_BITS | X2_BITS | X4_BITS | Y_BITS)) \
+ == (0x1LL << X4_SHIFT))
+#define IS_BR_COND(i) \
+ (((i) & (OPCODE_BITS | BTYPE_BITS)) == (0x4LL << OPCODE_SHIFT))
+#define IS_BR_CALL(i) \
+ (((i) & OPCODE_BITS) == (0x5LL << OPCODE_SHIFT))
-/* Given a ELF reloc, return the matching HOWTO structure. */
-
-static void
-elfNN_ia64_info_to_howto (abfd, bfd_reloc, elf_reloc)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *bfd_reloc;
- Elf_Internal_Rela *elf_reloc;
+bfd_boolean
+ia64_elf_relax_br (bfd_byte *contents, bfd_vma off)
{
- bfd_reloc->howto
- = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc->r_info));
-}
-\f
-#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
+ unsigned int template_val, mlx;
+ bfd_vma t0, t1, s0, s1, s2, br_code;
+ long br_slot;
+ bfd_byte *hit_addr;
-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;; */
-};
+ hit_addr = (bfd_byte *) (contents + off);
+ br_slot = (intptr_t) hit_addr & 0x3;
+ hit_addr -= br_slot;
+ t0 = bfd_getl64 (hit_addr + 0);
+ t1 = bfd_getl64 (hit_addr + 8);
-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>;; */
-};
+ /* Check if we can turn br into brl. A label is always at the start
+ of the bundle. Even if there are predicates on NOPs, we still
+ perform this optimization. */
+ template_val = t0 & 0x1e;
+ s0 = (t0 >> 5) & 0x1ffffffffffLL;
+ s1 = ((t0 >> 46) | (t1 << 18)) & 0x1ffffffffffLL;
+ s2 = (t1 >> 23) & 0x1ffffffffffLL;
+ switch (br_slot)
+ {
+ case 0:
+ /* Check if slot 1 and slot 2 are NOPs. Possible template is
+ BBB. We only need to check nop.b. */
+ if (!(IS_NOP_B (s1) && IS_NOP_B (s2)))
+ return FALSE;
+ br_code = s0;
+ break;
+ case 1:
+ /* Check if slot 2 is NOP. Possible templates are MBB and BBB.
+ For BBB, slot 0 also has to be nop.b. */
+ if (!((template_val == 0x12 /* MBB */
+ && IS_NOP_B (s2))
+ || (template_val == 0x16 /* BBB */
+ && IS_NOP_B (s0)
+ && IS_NOP_B (s2))))
+ return FALSE;
+ br_code = s1;
+ break;
+ case 2:
+ /* Check if slot 1 is NOP. Possible templates are MIB, MBB, BBB,
+ MMB and MFB. For BBB, slot 0 also has to be nop.b. */
+ if (!((template_val == 0x10 /* MIB */
+ && IS_NOP_I (s1))
+ || (template_val == 0x12 /* MBB */
+ && IS_NOP_B (s1))
+ || (template_val == 0x16 /* BBB */
+ && IS_NOP_B (s0)
+ && IS_NOP_B (s1))
+ || (template_val == 0x18 /* MMB */
+ && IS_NOP_M (s1))
+ || (template_val == 0x1c /* MFB */
+ && IS_NOP_F (s1))))
+ return FALSE;
+ br_code = s2;
+ break;
+ default:
+ /* It should never happen. */
+ abort ();
+ }
-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, 0x70, 0x29, 0xc0, /* ld8.acq 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;; */
-};
+ /* We can turn br.cond/br.call into brl.cond/brl.call. */
+ if (!(IS_BR_COND (br_code) || IS_BR_CALL (br_code)))
+ return FALSE;
-#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
+ /* Turn br into brl by setting bit 40. */
+ br_code |= 0x1LL << 40;
-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
-};
+ /* Turn the old bundle into a MLX bundle with the same stop-bit
+ variety. */
+ if (t0 & 0x1)
+ mlx = 0x5;
+ else
+ mlx = 0x4;
-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;; */
-};
+ if (template_val == 0x16)
+ {
+ /* For BBB, we need to put nop.m in slot 0. We keep the original
+ predicate only if slot 0 isn't br. */
+ if (br_slot == 0)
+ t0 = 0LL;
+ else
+ t0 &= PREDICATE_BITS << 5;
+ t0 |= 0x1LL << (X4_SHIFT + 5);
+ }
+ else
+ {
+ /* Keep the original instruction in slot 0. */
+ t0 &= 0x1ffffffffffLL << 5;
+ }
-static size_t oor_branch_size = sizeof (oor_brl);
+ t0 |= mlx;
-void
-bfd_elfNN_ia64_after_parse (int itanium)
-{
- oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
+ /* Put brl in slot 1. */
+ t1 = br_code << 23;
+
+ bfd_putl64 (t0, hit_addr);
+ bfd_putl64 (t1, hit_addr + 8);
+ return TRUE;
}
-static void
-elfNN_ia64_relax_brl (bfd_byte *contents, bfd_vma off)
+void
+ia64_elf_relax_brl (bfd_byte *contents, bfd_vma off)
{
- int template;
+ int template_val;
bfd_byte *hit_addr;
bfd_vma t0, t1, i0, i1, i2;
hit_addr = (bfd_byte *) (contents + off);
- hit_addr -= (long) hit_addr & 0x3;
+ hit_addr -= (intptr_t) hit_addr & 0x3;
t0 = bfd_getl64 (hit_addr);
t1 = bfd_getl64 (hit_addr + 8);
/* Turn a MLX bundle into a MBB bundle with the same stop-bit
variety. */
- template = 0x12;
- if ((t0 & 0x1fLL) == 5)
- template += 1;
- t0 = (i1 << 46) | (i0 << 5) | template;
+ if (t0 & 0x1)
+ template_val = 0x13;
+ else
+ template_val = 0x12;
+ t0 = (i1 << 46) | (i0 << 5) | template_val;
t1 = (i2 << 23) | (i1 >> 18);
bfd_putl64 (t0, hit_addr);
bfd_putl64 (t1, hit_addr + 8);
}
-\f
-/* These functions do relaxation for IA-64 ELF. */
-
-static bfd_boolean
-elfNN_ia64_relax_section (abfd, sec, link_info, again)
- bfd *abfd;
- asection *sec;
- struct bfd_link_info *link_info;
- bfd_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 *irel, *irelend;
- bfd_byte *contents;
- Elf_Internal_Sym *isymbuf = NULL;
- struct elfNN_ia64_link_hash_table *ia64_info;
- struct one_fixup *fixups = NULL;
- bfd_boolean changed_contents = FALSE;
- bfd_boolean changed_relocs = FALSE;
- bfd_boolean changed_got = FALSE;
- bfd_vma gp = 0;
-
- /* Assume we're not going to change any sizes, and we'll only need
- one pass. */
- *again = FALSE;
-
- /* Don't even try to relax for non-ELF outputs. */
- if (!is_elf_hash_table (link_info->hash))
- return FALSE;
-
- /* Nothing to do if there are no relocations or there is no need for
- the relax finalize pass. */
- if ((sec->flags & SEC_RELOC) == 0
- || sec->reloc_count == 0
- || (!link_info->need_relax_finalize
- && sec->need_finalize_relax == 0))
- return TRUE;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
-
- /* Load the relocations for this section. */
- internal_relocs = (_bfd_elf_link_read_relocs
- (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
- link_info->keep_memory));
- if (internal_relocs == NULL)
- return FALSE;
-
- ia64_info = elfNN_ia64_hash_table (link_info);
- irelend = internal_relocs + sec->reloc_count;
-
- /* Get the section contents. */
- if (elf_section_data (sec)->this_hdr.contents != NULL)
- contents = elf_section_data (sec)->this_hdr.contents;
- else
- {
- if (!bfd_malloc_and_get_section (abfd, sec, &contents))
- goto error_return;
- }
-
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
- bfd_vma symaddr, reladdr, trampoff, toff, roff;
- asection *tsec;
- struct one_fixup *f;
- bfd_size_type amt;
- bfd_boolean is_branch;
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- char symtype;
-
- switch (r_type)
- {
- case R_IA64_PCREL21B:
- case R_IA64_PCREL21BI:
- case R_IA64_PCREL21M:
- case R_IA64_PCREL21F:
- /* In the finalize pass, all br relaxations are done. We can
- skip it. */
- if (!link_info->need_relax_finalize)
- continue;
- is_branch = TRUE;
- break;
-
- case R_IA64_PCREL60B:
- /* We can't optimize brl to br before the finalize pass since
- br relaxations will increase the code size. Defer it to
- the finalize pass. */
- if (link_info->need_relax_finalize)
- {
- sec->need_finalize_relax = 1;
- continue;
- }
- is_branch = TRUE;
- break;
-
- case R_IA64_LTOFF22X:
- case R_IA64_LDXMOV:
- /* We can't relax ldx/mov before the finalize pass since
- br relaxations will increase the code size. Defer it to
- the finalize pass. */
- if (link_info->need_relax_finalize)
- {
- sec->need_finalize_relax = 1;
- continue;
- }
- is_branch = FALSE;
- break;
-
- default:
- continue;
- }
-
- /* Get the value of the symbol referred to by the reloc. */
- if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
- {
- /* A local symbol. */
- Elf_Internal_Sym *isym;
-
- /* Read this BFD's local symbols. */
- if (isymbuf == NULL)
- {
- isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- if (isymbuf == NULL)
- isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
- symtab_hdr->sh_info, 0,
- NULL, NULL, NULL);
- if (isymbuf == 0)
- goto error_return;
- }
-
- isym = isymbuf + ELFNN_R_SYM (irel->r_info);
- if (isym->st_shndx == SHN_UNDEF)
- continue; /* We can't do anything 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 == SHN_IA_64_ANSI_COMMON)
- tsec = bfd_com_section_ptr;
- else
- tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
-
- toff = isym->st_value;
- dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
- symtype = ELF_ST_TYPE (isym->st_info);
- }
- else
- {
- unsigned long indx;
- struct elf_link_hash_entry *h;
-
- indx = ELFNN_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 (is_branch && dyn_i && dyn_i->want_plt2)
- {
- /* Internal branches shouldn't be sent to the PLT.
- Leave this for now and we'll give an error later. */
- if (r_type != R_IA64_PCREL21B)
- continue;
-
- tsec = ia64_info->plt_sec;
- toff = dyn_i->plt2_offset;
- BFD_ASSERT (irel->r_addend == 0);
- }
-
- /* Can't do anything else with dynamic symbols. */
- else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
- continue;
-
- else
- {
- /* We can't do anything 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;
- }
-
- symtype = h->type;
- }
-
- if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
- {
- /* At this stage in linking, no SEC_MERGE symbol has been
- adjusted, so all references to such symbols need to be
- passed through _bfd_merged_section_offset. (Later, in
- relocate_section, all SEC_MERGE symbols *except* for
- section symbols have been adjusted.)
-
- gas may reduce relocations against symbols in SEC_MERGE
- sections to a relocation against the section symbol when
- the original addend was zero. When the reloc is against
- a section symbol we should include the addend in the
- offset passed to _bfd_merged_section_offset, since the
- location of interest is the original symbol. On the
- other hand, an access to "sym+addend" where "sym" is not
- a section symbol should not include the addend; Such an
- access is presumed to be an offset from "sym"; The
- location of interest is just "sym". */
- if (symtype == STT_SECTION)
- toff += irel->r_addend;
-
- toff = _bfd_merged_section_offset (abfd, &tsec,
- elf_section_data (tsec)->sec_info,
- toff);
-
- if (symtype != STT_SECTION)
- toff += irel->r_addend;
- }
- else
- toff += irel->r_addend;
-
- symaddr = tsec->output_section->vma + tsec->output_offset + toff;
-
- roff = irel->r_offset;
-
- if (is_branch)
- {
- bfd_signed_vma offset;
-
- reladdr = (sec->output_section->vma
- + sec->output_offset
- + roff) & (bfd_vma) -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)
- {
- /* If the 60-bit branch is in 21-bit range, optimize it. */
- if (r_type == R_IA64_PCREL60B)
- {
- elfNN_ia64_relax_brl (contents, roff);
-
- irel->r_info
- = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
- R_IA64_PCREL21B);
-
- /* If the original relocation offset points to slot
- 1, change it to slot 2. */
- if ((irel->r_offset & 3) == 1)
- irel->r_offset += 1;
- }
-
- continue;
- }
- else if (r_type == R_IA64_PCREL60B)
- continue;
-
- /* We can't put a trampoline in a .init/.fini section. Issue
- an error. */
- if (strcmp (sec->output_section->name, ".init") == 0
- || strcmp (sec->output_section->name, ".fini") == 0)
- {
- (*_bfd_error_handler)
- (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
- sec->owner, sec, (unsigned long) roff);
- bfd_set_error (bfd_error_bad_value);
- goto error_return;
- }
-
- /* 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. */
-
- size_t size;
-
- if (tsec == ia64_info->plt_sec)
- size = sizeof (plt_full_entry);
- else
- size = oor_branch_size;
-
- /* Resize the current section to make room for the new branch. */
- trampoff = (sec->size + 15) & (bfd_vma) -16;
-
- /* If trampoline is out of range, there is nothing we
- can do. */
- offset = trampoff - (roff & (bfd_vma) -4);
- if (offset < -0x1000000 || offset > 0x0FFFFF0)
- continue;
-
- amt = trampoff + size;
- contents = (bfd_byte *) bfd_realloc (contents, amt);
- if (contents == NULL)
- goto error_return;
- sec->size = amt;
-
- 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 = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
- R_IA64_PLTOFF22);
- irel->r_offset = trampoff;
- }
- else
- {
- if (size == sizeof (oor_ip))
- {
- memcpy (contents + trampoff, oor_ip, size);
- irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
- R_IA64_PCREL64I);
- irel->r_addend -= 16;
- irel->r_offset = trampoff + 2;
- }
- else
- {
- memcpy (contents + trampoff, oor_brl, size);
- irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
- R_IA64_PCREL60B);
- irel->r_offset = trampoff + 2;
- }
-
- }
-
- /* Record the fixup so we don't do it again this section. */
- f = (struct one_fixup *)
- bfd_malloc ((bfd_size_type) sizeof (*f));
- f->next = fixups;
- f->tsec = tsec;
- f->toff = toff;
- f->trampoff = trampoff;
- fixups = f;
- }
- else
- {
- /* If trampoline is out of range, there is nothing we
- can do. */
- offset = f->trampoff - (roff & (bfd_vma) -4);
- if (offset < -0x1000000 || offset > 0x0FFFFF0)
- continue;
-
- /* Nop out the reloc, since we're finalizing things here. */
- irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
- }
-
- /* Fix up the existing branch to hit the trampoline. */
- if (elfNN_ia64_install_value (contents + roff, offset, r_type)
- != bfd_reloc_ok)
- goto error_return;
-
- changed_contents = TRUE;
- changed_relocs = TRUE;
- }
- else
- {
- /* Fetch the gp. */
- if (gp == 0)
- {
- bfd *obfd = sec->output_section->owner;
- gp = _bfd_get_gp_value (obfd);
- if (gp == 0)
- {
- if (!elfNN_ia64_choose_gp (obfd, link_info))
- goto error_return;
- gp = _bfd_get_gp_value (obfd);
- }
- }
-
- /* If the data is out of range, do nothing. */
- if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
- ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
- continue;
-
- if (r_type == R_IA64_LTOFF22X)
- {
- irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
- R_IA64_GPREL22);
- changed_relocs = TRUE;
- if (dyn_i->want_gotx)
- {
- dyn_i->want_gotx = 0;
- changed_got |= !dyn_i->want_got;
- }
- }
- else
- {
- elfNN_ia64_relax_ldxmov (contents, roff);
- irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
- changed_contents = TRUE;
- changed_relocs = TRUE;
- }
- }
- }
-
- /* ??? If we created fixups, this may push the code segment large
- enough that the data segment moves, which will change the GP.
- Reset the GP so that we re-calculate next round. We need to
- do this at the _beginning_ of the next round; now will not do. */
-
- /* Clean up and go home. */
- while (fixups)
- {
- struct one_fixup *f = fixups;
- fixups = fixups->next;
- free (f);
- }
-
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- {
- if (! link_info->keep_memory)
- free (isymbuf);
- else
- {
- /* Cache the symbols for elf_link_input_bfd. */
- symtab_hdr->contents = (unsigned char *) isymbuf;
- }
- }
-
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- {
- if (!changed_contents && !link_info->keep_memory)
- free (contents);
- else
- {
- /* Cache the section contents for elf_link_input_bfd. */
- elf_section_data (sec)->this_hdr.contents = contents;
- }
- }
-
- if (elf_section_data (sec)->relocs != internal_relocs)
- {
- if (!changed_relocs)
- free (internal_relocs);
- else
- elf_section_data (sec)->relocs = internal_relocs;
- }
-
- if (changed_got)
- {
- struct elfNN_ia64_allocate_data data;
- data.info = link_info;
- data.ofs = 0;
- ia64_info->self_dtpmod_offset = (bfd_vma) -1;
-
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
- ia64_info->got_sec->size = data.ofs;
-
- /* ??? Resize .rela.got too. */
- }
-
- if (!link_info->need_relax_finalize)
- sec->need_finalize_relax = 0;
-
- *again = changed_contents || changed_relocs;
- return TRUE;
-
- error_return:
- if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
- free (isymbuf);
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- free (contents);
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
- free (internal_relocs);
- return FALSE;
-}
-static void
-elfNN_ia64_relax_ldxmov (contents, off)
- bfd_byte *contents;
- bfd_vma off;
+void
+ia64_elf_relax_ldxmov (bfd_byte *contents, bfd_vma off)
{
int shift, r1, r3;
bfd_vma dword, insn;
bfd_putl64 (dword, contents + off);
}
\f
-/* Return TRUE if NAME is an unwind table section name. */
-
-static inline bfd_boolean
-is_unwind_section_name (abfd, name)
- bfd *abfd;
- const char *name;
+bfd_reloc_status_type
+ia64_elf_install_value (bfd_byte *hit_addr, bfd_vma v, unsigned int r_type)
{
- size_t len1, len2, len3;
-
- if (elfNN_ia64_hpux_vec (abfd->xvec)
- && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
- return FALSE;
-
- len1 = sizeof (ELF_STRING_ia64_unwind) - 1;
- len2 = sizeof (ELF_STRING_ia64_unwind_info) - 1;
- len3 = sizeof (ELF_STRING_ia64_unwind_once) - 1;
- return ((strncmp (name, ELF_STRING_ia64_unwind, len1) == 0
- && strncmp (name, ELF_STRING_ia64_unwind_info, len2) != 0)
- || strncmp (name, ELF_STRING_ia64_unwind_once, len3) == 0);
-}
+ const struct ia64_operand *op;
+ int bigendian = 0, shift = 0;
+ bfd_vma t0, t1, dword;
+ ia64_insn insn;
+ enum ia64_opnd opnd;
+ const char *err;
+ size_t size = 8;
+#ifdef BFD_HOST_U_64_BIT
+ BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v;
+#else
+ bfd_vma val = v;
+#endif
-/* Handle an IA-64 specific section when reading an object file. This
- is called when elfcode.h finds a section with an unknown type. */
+ opnd = IA64_OPND_NIL;
+ switch (r_type)
+ {
+ case R_IA64_NONE:
+ case R_IA64_LDXMOV:
+ return bfd_reloc_ok;
-static bfd_boolean
-elfNN_ia64_section_from_shdr (abfd, hdr, name)
- bfd *abfd;
- Elf_Internal_Shdr *hdr;
- const char *name;
-{
- asection *newsect;
+ /* Instruction relocations. */
- /* 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:
- case SHT_IA_64_HP_OPT_ANOT:
+ case R_IA64_IMM14:
+ case R_IA64_TPREL14:
+ case R_IA64_DTPREL14:
+ opnd = IA64_OPND_IMM14;
break;
- case SHT_IA_64_EXT:
- if (strcmp (name, ELF_STRING_ia64_archext) != 0)
- return FALSE;
+ 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;
- default:
- return FALSE;
- }
-
- if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
- return FALSE;
- newsect = hdr->bfd_section;
-
- return TRUE;
-}
-
-/* Convert IA-64 specific section flags to bfd internal section flags. */
+ 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:
+ case R_IA64_TPREL22:
+ case R_IA64_DTPREL22:
+ case R_IA64_LTOFF_TPREL22:
+ case R_IA64_LTOFF_DTPMOD22:
+ case R_IA64_LTOFF_DTPREL22:
+ opnd = IA64_OPND_IMM22;
+ break;
-/* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
- flag. */
+ 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:
+ case R_IA64_TPREL64I:
+ case R_IA64_DTPREL64I:
+ opnd = IA64_OPND_IMMU64;
+ break;
-static bfd_boolean
-elfNN_ia64_section_flags (flags, hdr)
- flagword *flags;
- const Elf_Internal_Shdr *hdr;
-{
- if (hdr->sh_flags & SHF_IA_64_SHORT)
- *flags |= SEC_SMALL_DATA;
+ /* Data relocations. */
- 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 bfd_boolean
-elfNN_ia64_fake_sections (abfd, hdr, sec)
- bfd *abfd ATTRIBUTE_UNUSED;
- Elf_Internal_Shdr *hdr;
- asection *sec;
-{
- register const char *name;
-
- name = bfd_get_section_name (abfd, sec);
-
- if (is_unwind_section_name (abfd, name))
- {
- /* We don't have the sections numbered at this point, so sh_info
- is set later, in elfNN_ia64_final_write_processing. */
- hdr->sh_type = SHT_IA_64_UNWIND;
- hdr->sh_flags |= SHF_LINK_ORDER;
- }
- else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
- hdr->sh_type = SHT_IA_64_EXT;
- else if (strcmp (name, ".HP.opt_annot") == 0)
- hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
- 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 ELFNN 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 ELFNN 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;
-}
-
-/* The final processing done just before writing out an IA-64 ELF
- object file. */
-
-static void
-elfNN_ia64_final_write_processing (abfd, linker)
- bfd *abfd;
- bfd_boolean linker ATTRIBUTE_UNUSED;
-{
- Elf_Internal_Shdr *hdr;
- asection *s;
-
- for (s = abfd->sections; s; s = s->next)
- {
- hdr = &elf_section_data (s)->this_hdr;
- switch (hdr->sh_type)
- {
- case SHT_IA_64_UNWIND:
- /* The IA-64 processor-specific ABI requires setting sh_link
- to the unwind section, whereas HP-UX requires sh_info to
- do so. For maximum compatibility, we'll set both for
- now... */
- hdr->sh_info = hdr->sh_link;
- break;
- }
- }
-
- if (! elf_flags_init (abfd))
- {
- unsigned long flags = 0;
-
- if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
- flags |= EF_IA_64_BE;
- if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
- flags |= EF_IA_64_ABI64;
-
- elf_elfheader(abfd)->e_flags = flags;
- elf_flags_init (abfd) = 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 bfd_boolean
-elfNN_ia64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
- bfd *abfd;
- struct bfd_link_info *info;
- Elf_Internal_Sym *sym;
- const char **namep ATTRIBUTE_UNUSED;
- flagword *flagsp ATTRIBUTE_UNUSED;
- asection **secp;
- bfd_vma *valp;
-{
- if (sym->st_shndx == SHN_COMMON
- && !info->relocatable
- && sym->st_size <= elf_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
-elfNN_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;
-
- /* Count how many PT_IA_64_UNWIND segments we need. */
- for (s = abfd->sections; s; s = s->next)
- if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
- ++ret;
-
- return ret;
-}
-
-static bfd_boolean
-elfNN_ia64_modify_segment_map (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
-{
- struct elf_segment_map *m, **pm;
- Elf_Internal_Shdr *hdr;
- 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, (bfd_size_type) 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 PT_IA_64_UNWIND segments, if needed. */
- for (s = abfd->sections; s; s = s->next)
- {
- hdr = &elf_section_data (s)->this_hdr;
- if (hdr->sh_type != SHT_IA_64_UNWIND)
- continue;
-
- 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)
- {
- int i;
-
- /* Look through all sections in the unwind segment
- for a match since there may be multiple sections
- to a segment. */
- for (i = m->count - 1; i >= 0; --i)
- if (m->sections[i] == s)
- break;
-
- if (i >= 0)
- break;
- }
-
- if (m == NULL)
- {
- m = ((struct elf_segment_map *)
- bfd_zalloc (abfd, (bfd_size_type) 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 bfd_boolean
-elfNN_ia64_is_local_label_name (abfd, name)
- bfd *abfd ATTRIBUTE_UNUSED;
- const char *name;
-{
- return name[0] == '.';
-}
-
-/* Should we do dynamic things to this symbol? */
-
-static bfd_boolean
-elfNN_ia64_dynamic_symbol_p (h, info, r_type)
- struct elf_link_hash_entry *h;
- struct bfd_link_info *info;
- int r_type;
-{
- bfd_boolean ignore_protected
- = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
- || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
-
- return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
-}
-\f
-static struct bfd_hash_entry*
-elfNN_ia64_new_elf_hash_entry (entry, table, string)
- struct bfd_hash_entry *entry;
- struct bfd_hash_table *table;
- const char *string;
-{
- struct elfNN_ia64_link_hash_entry *ret;
- ret = (struct elfNN_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;
-
- /* Call the allocation method of the superclass. */
- ret = ((struct elfNN_ia64_link_hash_entry *)
- _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
- table, string));
-
- ret->info = NULL;
- return (struct bfd_hash_entry *) ret;
-}
-
-static void
-elfNN_ia64_hash_copy_indirect (bed, xdir, xind)
- const struct elf_backend_data *bed ATTRIBUTE_UNUSED;
- struct elf_link_hash_entry *xdir, *xind;
-{
- struct elfNN_ia64_link_hash_entry *dir, *ind;
-
- dir = (struct elfNN_ia64_link_hash_entry *) xdir;
- ind = (struct elfNN_ia64_link_hash_entry *) xind;
-
- /* Copy down any references that we may have already seen to the
- symbol which just became indirect. */
-
- dir->root.ref_dynamic |= ind->root.ref_dynamic;
- dir->root.ref_regular |= ind->root.ref_regular;
- dir->root.ref_regular_nonweak |= ind->root.ref_regular_nonweak;
- dir->root.needs_plt |= ind->root.needs_plt;
-
- if (ind->root.root.type != bfd_link_hash_indirect)
- return;
-
- /* Copy over the got and plt data. This would have been done
- by check_relocs. */
-
- if (dir->info == NULL)
- {
- struct elfNN_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
-elfNN_ia64_hash_hide_symbol (info, xh, force_local)
- struct bfd_link_info *info;
- struct elf_link_hash_entry *xh;
- bfd_boolean force_local;
-{
- struct elfNN_ia64_link_hash_entry *h;
- struct elfNN_ia64_dyn_sym_info *dyn_i;
-
- h = (struct elfNN_ia64_link_hash_entry *)xh;
-
- _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
-
- for (dyn_i = h->info; dyn_i; dyn_i = dyn_i->next)
- {
- dyn_i->want_plt2 = 0;
- dyn_i->want_plt = 0;
- }
-}
-
-/* Compute a hash of a local hash entry. */
-
-static hashval_t
-elfNN_ia64_local_htab_hash (ptr)
- const void *ptr;
-{
- struct elfNN_ia64_local_hash_entry *entry
- = (struct elfNN_ia64_local_hash_entry *) ptr;
-
- return (((entry->id & 0xff) << 24) | ((entry->id & 0xff00) << 8))
- ^ entry->r_sym ^ (entry->id >> 16);
-}
-
-/* Compare local hash entries. */
-
-static int
-elfNN_ia64_local_htab_eq (ptr1, ptr2)
- const void *ptr1, *ptr2;
-{
- struct elfNN_ia64_local_hash_entry *entry1
- = (struct elfNN_ia64_local_hash_entry *) ptr1;
- struct elfNN_ia64_local_hash_entry *entry2
- = (struct elfNN_ia64_local_hash_entry *) ptr2;
-
- return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
-}
-
-/* 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*
-elfNN_ia64_hash_table_create (abfd)
- bfd *abfd;
-{
- struct elfNN_ia64_link_hash_table *ret;
-
- ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
- if (!ret)
- return 0;
-
- if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
- elfNN_ia64_new_elf_hash_entry))
- {
- free (ret);
- return 0;
- }
-
- ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
- elfNN_ia64_local_htab_eq, NULL);
- ret->loc_hash_memory = objalloc_create ();
- if (!ret->loc_hash_table || !ret->loc_hash_memory)
- {
- free (ret);
- return 0;
- }
-
- return &ret->root.root;
-}
-
-/* Destroy IA-64 linker hash table. */
-
-static void
-elfNN_ia64_hash_table_free (hash)
- struct bfd_link_hash_table *hash;
-{
- struct elfNN_ia64_link_hash_table *ia64_info
- = (struct elfNN_ia64_link_hash_table *) hash;
- if (ia64_info->loc_hash_table)
- htab_delete (ia64_info->loc_hash_table);
- if (ia64_info->loc_hash_memory)
- objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
- _bfd_generic_link_hash_table_free (hash);
-}
-
-/* Traverse both local and global hash tables. */
-
-struct elfNN_ia64_dyn_sym_traverse_data
-{
- bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
- PTR data;
-};
-
-static bfd_boolean
-elfNN_ia64_global_dyn_sym_thunk (xentry, xdata)
- struct bfd_hash_entry *xentry;
- PTR xdata;
-{
- struct elfNN_ia64_link_hash_entry *entry
- = (struct elfNN_ia64_link_hash_entry *) xentry;
- struct elfNN_ia64_dyn_sym_traverse_data *data
- = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
- struct elfNN_ia64_dyn_sym_info *dyn_i;
-
- if (entry->root.root.type == bfd_link_hash_warning)
- entry = (struct elfNN_ia64_link_hash_entry *) entry->root.root.u.i.link;
-
- for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next)
- if (! (*data->func) (dyn_i, data->data))
- return FALSE;
- return TRUE;
-}
-
-static bfd_boolean
-elfNN_ia64_local_dyn_sym_thunk (slot, xdata)
- void **slot;
- PTR xdata;
-{
- struct elfNN_ia64_local_hash_entry *entry
- = (struct elfNN_ia64_local_hash_entry *) *slot;
- struct elfNN_ia64_dyn_sym_traverse_data *data
- = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
- struct elfNN_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 0;
- return 1;
-}
-
-static void
-elfNN_ia64_dyn_sym_traverse (ia64_info, func, data)
- struct elfNN_ia64_link_hash_table *ia64_info;
- bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
- PTR data;
-{
- struct elfNN_ia64_dyn_sym_traverse_data xdata;
-
- xdata.func = func;
- xdata.data = data;
-
- elf_link_hash_traverse (&ia64_info->root,
- elfNN_ia64_global_dyn_sym_thunk, &xdata);
- htab_traverse (ia64_info->loc_hash_table,
- elfNN_ia64_local_dyn_sym_thunk, &xdata);
-}
-\f
-static bfd_boolean
-elfNN_ia64_create_dynamic_sections (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- struct elfNN_ia64_link_hash_table *ia64_info;
- asection *s;
-
- if (! _bfd_elf_create_dynamic_sections (abfd, info))
- return FALSE;
-
- ia64_info = elfNN_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);
- /* The .got section is always aligned at 8 bytes. */
- bfd_set_section_alignment (abfd, ia64_info->got_sec, 3);
- }
-
- 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 hash entry for local symbol. */
-static struct elfNN_ia64_local_hash_entry *
-get_local_sym_hash (ia64_info, abfd, rel, create)
- struct elfNN_ia64_link_hash_table *ia64_info;
- bfd *abfd;
- const Elf_Internal_Rela *rel;
- bfd_boolean create;
-{
- struct elfNN_ia64_local_hash_entry e, *ret;
- asection *sec = abfd->sections;
- hashval_t h = (((sec->id & 0xff) << 24) | ((sec->id & 0xff00) << 8))
- ^ ELFNN_R_SYM (rel->r_info) ^ (sec->id >> 16);
- void **slot;
-
- e.id = sec->id;
- e.r_sym = ELFNN_R_SYM (rel->r_info);
- slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
- create ? INSERT : NO_INSERT);
-
- if (!slot)
- return NULL;
-
- if (*slot)
- return (struct elfNN_ia64_local_hash_entry *) *slot;
-
- ret = (struct elfNN_ia64_local_hash_entry *)
- objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
- sizeof (struct elfNN_ia64_local_hash_entry));
- if (ret)
- {
- memset (ret, 0, sizeof (*ret));
- ret->id = sec->id;
- ret->r_sym = ELFNN_R_SYM (rel->r_info);
- *slot = ret;
- }
- return ret;
-}
-
-/* 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 elfNN_ia64_dyn_sym_info *
-get_dyn_sym_info (ia64_info, h, abfd, rel, create)
- struct elfNN_ia64_link_hash_table *ia64_info;
- struct elf_link_hash_entry *h;
- bfd *abfd;
- const Elf_Internal_Rela *rel;
- bfd_boolean create;
-{
- struct elfNN_ia64_dyn_sym_info **pp;
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- bfd_vma addend = rel ? rel->r_addend : 0;
-
- if (h)
- pp = &((struct elfNN_ia64_link_hash_entry *)h)->info;
- else
- {
- struct elfNN_ia64_local_hash_entry *loc_h;
-
- loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
- if (!loc_h)
- {
- BFD_ASSERT (!create);
- return NULL;
- }
-
- 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 elfNN_ia64_dyn_sym_info *)
- bfd_zalloc (abfd, (bfd_size_type) 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 elfNN_ia64_link_hash_table *ia64_info;
-{
- asection *got;
- 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;
-
- /* The .got section is always aligned at 8 bytes. */
- if (!bfd_set_section_alignment (abfd, got, 3))
- return 0;
-
- 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 procedure 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 elfNN_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
- | (info->pie ? 0 : SEC_READONLY)
- | SEC_LINKER_CREATED))
- || !bfd_set_section_alignment (abfd, fptr, 4))
- {
- BFD_ASSERT (0);
- return NULL;
- }
-
- ia64_info->fptr_sec = fptr;
-
- if (info->pie)
- {
- asection *fptr_rel;
- fptr_rel = bfd_make_section(dynobj, ".rela.opd");
- if (fptr_rel == NULL
- || !bfd_set_section_flags (dynobj, fptr_rel,
- (SEC_ALLOC | SEC_LOAD
- | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY
- | SEC_LINKER_CREATED
- | SEC_READONLY))
- || !bfd_set_section_alignment (abfd, fptr_rel, 3))
- {
- BFD_ASSERT (0);
- return NULL;
- }
-
- ia64_info->rel_fptr_sec = fptr_rel;
- }
- }
-
- return fptr;
-}
-
-static asection *
-get_pltoff (abfd, info, ia64_info)
- bfd *abfd;
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- struct elfNN_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 elfNN_ia64_link_hash_table *ia64_info;
- asection *sec;
- bfd_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 bfd_boolean
-count_dyn_reloc (bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
- asection *srel, int type, bfd_boolean reltext)
-{
- struct elfNN_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 elfNN_ia64_dyn_reloc_entry *)
- bfd_alloc (abfd, (bfd_size_type) 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->reltext = reltext;
- rent->count++;
-
- return TRUE;
-}
-
-static bfd_boolean
-elfNN_ia64_check_relocs (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
-{
- struct elfNN_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, *pltoff;
-
- if (info->relocatable)
- return TRUE;
-
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- ia64_info = elfNN_ia64_hash_table (info);
-
- got = fptr = srel = pltoff = NULL;
-
- relend = relocs + sec->reloc_count;
- for (rel = relocs; rel < relend; ++rel)
- {
- enum {
- NEED_GOT = 1,
- NEED_GOTX = 2,
- NEED_FPTR = 4,
- NEED_PLTOFF = 8,
- NEED_MIN_PLT = 16,
- NEED_FULL_PLT = 32,
- NEED_DYNREL = 64,
- NEED_LTOFF_FPTR = 128,
- NEED_TPREL = 256,
- NEED_DTPMOD = 512,
- NEED_DTPREL = 1024
- };
-
- struct elf_link_hash_entry *h = NULL;
- unsigned long r_symndx = ELFNN_R_SYM (rel->r_info);
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- int need_entry;
- bfd_boolean maybe_dynamic;
- int dynrel_type = R_IA64_NONE;
-
- 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->ref_regular = 1;
- }
-
- /* 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->executable
- && (!info->symbolic
- || info->unresolved_syms_in_shared_libs == RM_IGNORE))
- || !h->def_regular
- || h->root.type == bfd_link_hash_defweak))
- maybe_dynamic = TRUE;
-
- need_entry = 0;
- switch (ELFNN_R_TYPE (rel->r_info))
- {
- case R_IA64_TPREL64MSB:
- case R_IA64_TPREL64LSB:
- if (info->shared || maybe_dynamic)
- need_entry = NEED_DYNREL;
- dynrel_type = R_IA64_TPREL64LSB;
- if (info->shared)
- info->flags |= DF_STATIC_TLS;
- break;
-
- case R_IA64_LTOFF_TPREL22:
- need_entry = NEED_TPREL;
- if (info->shared)
- info->flags |= DF_STATIC_TLS;
- break;
-
- case R_IA64_DTPREL64MSB:
- case R_IA64_DTPREL64LSB:
- if (info->shared || maybe_dynamic)
- need_entry = NEED_DYNREL;
- dynrel_type = R_IA64_DTPREL64LSB;
- break;
-
- case R_IA64_LTOFF_DTPREL22:
- need_entry = NEED_DTPREL;
- break;
-
- case R_IA64_DTPMOD64MSB:
- case R_IA64_DTPMOD64LSB:
- if (info->shared || maybe_dynamic)
- need_entry = NEED_DYNREL;
- dynrel_type = R_IA64_DTPMOD64LSB;
- break;
-
- case R_IA64_LTOFF_DTPMOD22:
- need_entry = NEED_DTPMOD;
- break;
-
- case R_IA64_LTOFF_FPTR22:
- case R_IA64_LTOFF_FPTR64I:
- case R_IA64_LTOFF_FPTR32MSB:
- case R_IA64_LTOFF_FPTR32LSB:
- 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_LTOFF64I:
- need_entry = NEED_GOT;
- break;
-
- case R_IA64_LTOFF22X:
- need_entry = NEED_GOTX;
- 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, (bfd_vma) 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_IPLTMSB:
- case R_IA64_IPLTLSB:
- /* Shared objects will always need at least a REL relocation. */
- if (info->shared || maybe_dynamic)
- need_entry = NEED_DYNREL;
- dynrel_type = R_IA64_IPLTLSB;
- 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, (bfd_vma) 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 | NEED_GOTX | NEED_TPREL
- | NEED_DTPMOD | NEED_DTPREL))
- {
- if (!got)
- {
- got = get_got (abfd, info, ia64_info);
- if (!got)
- return FALSE;
- }
- if (need_entry & NEED_GOT)
- dyn_i->want_got = 1;
- if (need_entry & NEED_GOTX)
- dyn_i->want_gotx = 1;
- if (need_entry & NEED_TPREL)
- dyn_i->want_tprel = 1;
- if (need_entry & NEED_DTPMOD)
- dyn_i->want_dtpmod = 1;
- if (need_entry & NEED_DTPREL)
- dyn_i->want_dtprel = 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_elf_link_record_local_dynamic_symbol
- (info, abfd, (long) 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->needs_plt = 1;
- dyn_i->want_plt = 1;
- }
- if (need_entry & NEED_FULL_PLT)
- dyn_i->want_plt2 = 1;
- if (need_entry & NEED_PLTOFF)
- {
- /* This is needed here, in case @pltoff is used in a non-shared
- link. */
- if (!pltoff)
- {
- pltoff = get_pltoff (abfd, info, ia64_info);
- if (!pltoff)
- return FALSE;
- }
-
- 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,
- (sec->flags & SEC_READONLY) != 0))
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-/* For cleanliness, and potentially faster dynamic loading, allocate
- external GOT entries first. */
-
-static bfd_boolean
-allocate_global_data_got (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
-
- if ((dyn_i->want_got || dyn_i->want_gotx)
- && ! dyn_i->want_fptr
- && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
- {
- dyn_i->got_offset = x->ofs;
- x->ofs += 8;
- }
- if (dyn_i->want_tprel)
- {
- dyn_i->tprel_offset = x->ofs;
- x->ofs += 8;
- }
- if (dyn_i->want_dtpmod)
- {
- if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
- {
- dyn_i->dtpmod_offset = x->ofs;
- x->ofs += 8;
- }
- else
- {
- struct elfNN_ia64_link_hash_table *ia64_info;
-
- ia64_info = elfNN_ia64_hash_table (x->info);
- if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
- {
- ia64_info->self_dtpmod_offset = x->ofs;
- x->ofs += 8;
- }
- dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
- }
- }
- if (dyn_i->want_dtprel)
- {
- dyn_i->dtprel_offset = x->ofs;
- x->ofs += 8;
- }
- return TRUE;
-}
-
-/* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
-
-static bfd_boolean
-allocate_global_fptr_got (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
-
- if (dyn_i->want_got
- && dyn_i->want_fptr
- && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTR64LSB))
- {
- dyn_i->got_offset = x->ofs;
- x->ofs += 8;
- }
- return TRUE;
-}
-
-/* Lastly, allocate all the GOT entries for local data. */
-
-static bfd_boolean
-allocate_local_got (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
-
- if ((dyn_i->want_got || dyn_i->want_gotx)
- && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
- {
- 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 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 bfd_boolean
-allocate_fptr (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_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->executable
- && (!h
- || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak))
- {
- if (h && h->dynindx == -1)
- {
- BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
- || (h->root.type == bfd_link_hash_defweak));
-
- if (!bfd_elf_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 bfd_boolean
-allocate_plt_entries (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_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 NEEDS_PLT. */
- if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
- {
- 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 bfd_boolean
-allocate_plt2_entries (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_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 bfd_boolean
-allocate_pltoff_entries (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_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 bfd_boolean
-allocate_dynrel_entries (dyn_i, data)
- struct elfNN_ia64_dyn_sym_info *dyn_i;
- PTR data;
-{
- struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
- struct elfNN_ia64_link_hash_table *ia64_info;
- struct elfNN_ia64_dyn_reloc_entry *rent;
- bfd_boolean dynamic_symbol, shared, resolved_zero;
-
- ia64_info = elfNN_ia64_hash_table (x->info);
-
- /* Note that this can't be used in relation to FPTR relocs below. */
- dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
-
- shared = x->info->shared;
- resolved_zero = (dyn_i->h
- && ELF_ST_VISIBILITY (dyn_i->h->other)
- && dyn_i->h->root.type == bfd_link_hash_undefweak);
-
- /* Take care of the normal data relocations. */
-
- for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
- {
- int count = rent->count;
-
- switch (rent->type)
- {
- case R_IA64_FPTR64LSB:
- /* Allocate one iff !want_fptr and not PIE, which by this point
- will be true only if we're actually allocating one statically
- in the main executable. Position independent executables
- need a relative reloc. */
- if (dyn_i->want_fptr && !x->info->pie)
- continue;
- break;
- case R_IA64_PCREL64LSB:
- if (!dynamic_symbol)
- continue;
- break;
- case R_IA64_DIR64LSB:
- if (!dynamic_symbol && !shared)
- continue;
- break;
- case R_IA64_IPLTLSB:
- if (!dynamic_symbol && !shared)
- continue;
- /* Use two REL relocations for IPLT relocations
- against local symbols. */
- if (!dynamic_symbol)
- count *= 2;
- break;
- case R_IA64_TPREL64LSB:
- case R_IA64_DTPREL64LSB:
- case R_IA64_DTPMOD64LSB:
- break;
- default:
- abort ();
- }
- if (rent->reltext)
- ia64_info->reltext = 1;
- rent->srel->size += sizeof (ElfNN_External_Rela) * count;
- }
-
- /* Take care of the GOT and PLT relocations. */
-
- if ((!resolved_zero
- && (dynamic_symbol || shared)
- && (dyn_i->want_got || dyn_i->want_gotx))
- || (dyn_i->want_ltoff_fptr
- && dyn_i->h
- && dyn_i->h->dynindx != -1))
- {
- if (!dyn_i->want_ltoff_fptr
- || !x->info->pie
- || dyn_i->h == NULL
- || dyn_i->h->root.type != bfd_link_hash_undefweak)
- ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
- }
- if ((dynamic_symbol || shared) && dyn_i->want_tprel)
- ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
- if (dynamic_symbol && dyn_i->want_dtpmod)
- ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
- if (dynamic_symbol && dyn_i->want_dtprel)
- ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
- if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
- {
- if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
- ia64_info->rel_fptr_sec->size += sizeof (ElfNN_External_Rela);
- }
-
- if (!resolved_zero && 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 (ElfNN_External_Rela);
- else if (shared)
- t = 2 * sizeof (ElfNN_External_Rela);
-
- ia64_info->rel_pltoff_sec->size += t;
- }
-
- return TRUE;
-}
-
-static bfd_boolean
-elfNN_ia64_adjust_dynamic_symbol (info, h)
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
- 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->u.weakdef != NULL)
- {
- BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
- || h->u.weakdef->root.type == bfd_link_hash_defweak);
- h->root.u.def.section = h->u.weakdef->root.u.def.section;
- h->root.u.def.value = h->u.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 bfd_boolean
-elfNN_ia64_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info;
-{
- struct elfNN_ia64_allocate_data data;
- struct elfNN_ia64_link_hash_table *ia64_info;
- asection *sec;
- bfd *dynobj;
- bfd_boolean relplt = FALSE;
-
- dynobj = elf_hash_table(info)->dynobj;
- ia64_info = elfNN_ia64_hash_table (info);
- ia64_info->self_dtpmod_offset = (bfd_vma) -1;
- 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->executable)
- {
- sec = bfd_get_section_by_name (dynobj, ".interp");
- BFD_ASSERT (sec != NULL);
- sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
- sec->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
- }
-
- /* Allocate the GOT entries. */
-
- if (ia64_info->got_sec)
- {
- data.ofs = 0;
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
- ia64_info->got_sec->size = data.ofs;
- }
-
- /* Allocate the FPTR entries. */
-
- if (ia64_info->fptr_sec)
- {
- data.ofs = 0;
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
- ia64_info->fptr_sec->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;
- elfNN_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) & (bfd_vma) -32;
-
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
- if (data.ofs != 0 || ia64_info->root.dynamic_sections_created)
- {
- /* FIXME: we always reserve the memory for dynamic linker even if
- there are no PLT entries since dynamic linker may assume the
- reserved memory always exists. */
-
- BFD_ASSERT (ia64_info->root.dynamic_sections_created);
-
- ia64_info->plt_sec->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->size = 8 * PLT_RESERVED_WORDS;
- }
-
- /* Allocate the PLTOFF entries. */
-
- if (ia64_info->pltoff_sec)
- {
- data.ofs = 0;
- elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
- ia64_info->pltoff_sec->size = data.ofs;
- }
-
- if (ia64_info->root.dynamic_sections_created)
- {
- /* Allocate space for the dynamic relocations that turned out to be
- required. */
-
- if (info->shared && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
- ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
- elfNN_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)
- {
- bfd_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->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->rel_fptr_sec)
- {
- if (strip)
- ia64_info->rel_fptr_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->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)
- {
- /* 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->size);
- if (sec->contents == NULL && sec->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->executable)
- {
- /* The DT_DEBUG entry is filled in by the dynamic linker and used
- by the debugger. */
-#define add_dynamic_entry(TAG, VAL) \
- _bfd_elf_add_dynamic_entry (info, TAG, VAL)
-
- if (!add_dynamic_entry (DT_DEBUG, 0))
- return FALSE;
- }
-
- if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
- return FALSE;
- if (!add_dynamic_entry (DT_PLTGOT, 0))
- return FALSE;
-
- if (relplt)
- {
- if (!add_dynamic_entry (DT_PLTRELSZ, 0)
- || !add_dynamic_entry (DT_PLTREL, DT_RELA)
- || !add_dynamic_entry (DT_JMPREL, 0))
- return FALSE;
- }
-
- if (!add_dynamic_entry (DT_RELA, 0)
- || !add_dynamic_entry (DT_RELASZ, 0)
- || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
- return FALSE;
-
- if (ia64_info->reltext)
- {
- if (!add_dynamic_entry (DT_TEXTREL, 0))
- return FALSE;
- info->flags |= DF_TEXTREL;
- }
- }
-
- /* ??? Perhaps force __gp local. */
-
- return TRUE;
-}
-
-static bfd_reloc_status_type
-elfNN_ia64_install_value (hit_addr, v, r_type)
- bfd_byte *hit_addr;
- bfd_vma v;
- 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;
-#ifdef BFD_HOST_U_64_BIT
- BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v;
-#else
- bfd_vma val = v;
-#endif
-
- 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:
- case R_IA64_TPREL14:
- case R_IA64_DTPREL14:
- 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:
- case R_IA64_TPREL22:
- case R_IA64_DTPREL22:
- case R_IA64_LTOFF_TPREL22:
- case R_IA64_LTOFF_DTPMOD22:
- case R_IA64_LTOFF_DTPREL22:
- 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:
- case R_IA64_TPREL64I:
- case R_IA64_DTPREL64I:
- 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_LTOFF_FPTR32MSB:
- case R_IA64_SEGREL32MSB:
- case R_IA64_SECREL32MSB:
- case R_IA64_LTV32MSB:
- case R_IA64_DTPREL32MSB:
- size = 4; bigendian = 1;
- break;
-
- case R_IA64_DIR32LSB:
- case R_IA64_GPREL32LSB:
- case R_IA64_FPTR32LSB:
- case R_IA64_PCREL32LSB:
- case R_IA64_LTOFF_FPTR32LSB:
- case R_IA64_SEGREL32LSB:
- case R_IA64_SECREL32LSB:
- case R_IA64_LTV32LSB:
- case R_IA64_DTPREL32LSB:
- 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:
- case R_IA64_TPREL64MSB:
- case R_IA64_DTPMOD64MSB:
- case R_IA64_DTPREL64MSB:
- 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:
- case R_IA64_TPREL64LSB:
- case R_IA64_DTPMOD64LSB:
- case R_IA64_DTPREL64LSB:
- size = 8; bigendian = 0;
- break;
-
- /* Unsupported / Dynamic relocations. */
- default:
- return bfd_reloc_notsupported;
- }
-
- switch (opnd)
- {
- case IA64_OPND_IMMU64:
- hit_addr -= (long) hit_addr & 0x3;
- t0 = bfd_getl64 (hit_addr);
- t1 = bfd_getl64 (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_putl64 (t0, hit_addr);
- bfd_putl64 (t1, hit_addr + 8);
- break;
-
- case IA64_OPND_TGT64:
- hit_addr -= (long) hit_addr & 0x3;
- t0 = bfd_getl64 (hit_addr);
- t1 = bfd_getl64 (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_putl64 (t0, hit_addr);
- bfd_putl64 (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_getl64 (hit_addr);
- insn = (dword >> shift) & 0x1ffffffffffLL;
-
- op = elf64_ia64_operands + opnd;
- err = (*op->insert) (op, val, (ia64_insn *)& insn);
- if (err)
- return bfd_reloc_overflow;
-
- dword &= ~(0x1ffffffffffLL << shift);
- dword |= (insn << shift);
- bfd_putl64 (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
-elfNN_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;
- bfd_byte *loc;
-
- BFD_ASSERT (dynindx != -1);
- outrel.r_info = ELFNN_R_INFO (dynindx, type);
- outrel.r_addend = addend;
- outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
- if (outrel.r_offset >= (bfd_vma) -2)
- {
- /* 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 = ELFNN_R_INFO (0, R_IA64_NONE);
- outrel.r_addend = 0;
- outrel.r_offset = 0;
- }
- else
- outrel.r_offset += sec->output_section->vma + sec->output_offset;
-
- loc = srel->contents;
- loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
- bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
- BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count <= srel->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 elfNN_ia64_dyn_sym_info *dyn_i;
- long dynindx;
- bfd_vma addend;
- bfd_vma value;
- unsigned int dyn_r_type;
-{
- struct elfNN_ia64_link_hash_table *ia64_info;
- asection *got_sec;
- bfd_boolean done;
- bfd_vma got_offset;
-
- ia64_info = elfNN_ia64_hash_table (info);
- got_sec = ia64_info->got_sec;
-
- switch (dyn_r_type)
- {
- case R_IA64_TPREL64LSB:
- done = dyn_i->tprel_done;
- dyn_i->tprel_done = TRUE;
- got_offset = dyn_i->tprel_offset;
- break;
- case R_IA64_DTPMOD64LSB:
- if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
- {
- done = dyn_i->dtpmod_done;
- dyn_i->dtpmod_done = TRUE;
- }
- else
- {
- done = ia64_info->self_dtpmod_done;
- ia64_info->self_dtpmod_done = TRUE;
- dynindx = 0;
- }
- got_offset = dyn_i->dtpmod_offset;
- break;
- case R_IA64_DTPREL64LSB:
- done = dyn_i->dtprel_done;
- dyn_i->dtprel_done = TRUE;
- got_offset = dyn_i->dtprel_offset;
- break;
- default:
- done = dyn_i->got_done;
- dyn_i->got_done = TRUE;
- got_offset = dyn_i->got_offset;
- break;
- }
-
- BFD_ASSERT ((got_offset & 7) == 0);
-
- if (! done)
- {
- /* Store the target address in the linkage table entry. */
- bfd_put_64 (abfd, value, got_sec->contents + got_offset);
-
- /* Install a dynamic relocation if needed. */
- if (((info->shared
- && (!dyn_i->h
- || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
- || dyn_i->h->root.type != bfd_link_hash_undefweak)
- && dyn_r_type != R_IA64_DTPREL64LSB)
- || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
- || (dynindx != -1 && dyn_r_type == R_IA64_FPTR64LSB))
- && (!dyn_i->want_ltoff_fptr
- || !info->pie
- || !dyn_i->h
- || dyn_i->h->root.type != bfd_link_hash_undefweak))
- {
- if (dynindx == -1
- && dyn_r_type != R_IA64_TPREL64LSB
- && dyn_r_type != R_IA64_DTPMOD64LSB
- && dyn_r_type != R_IA64_DTPREL64LSB)
- {
- 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;
- case R_IA64_TPREL64LSB:
- dyn_r_type = R_IA64_TPREL64MSB;
- break;
- case R_IA64_DTPMOD64LSB:
- dyn_r_type = R_IA64_DTPMOD64MSB;
- break;
- case R_IA64_DTPREL64LSB:
- dyn_r_type = R_IA64_DTPREL64MSB;
- break;
- default:
- BFD_ASSERT (FALSE);
- break;
- }
- }
-
- elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
- ia64_info->rel_got_sec,
- 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
- + 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 elfNN_ia64_dyn_sym_info *dyn_i;
- bfd_vma value;
-{
- struct elfNN_ia64_link_hash_table *ia64_info;
- asection *fptr_sec;
-
- ia64_info = elfNN_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);
- if (ia64_info->rel_fptr_sec)
- {
- Elf_Internal_Rela outrel;
- bfd_byte *loc;
-
- if (bfd_little_endian (abfd))
- outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
- else
- outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
- outrel.r_addend = value;
- outrel.r_offset = (fptr_sec->output_section->vma
- + fptr_sec->output_offset
- + dyn_i->fptr_offset);
- loc = ia64_info->rel_fptr_sec->contents;
- loc += ia64_info->rel_fptr_sec->reloc_count++
- * sizeof (ElfNN_External_Rela);
- bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
- }
- }
-
- /* 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 elfNN_ia64_dyn_sym_info *dyn_i;
- bfd_vma value;
- bfd_boolean is_plt;
-{
- struct elfNN_ia64_link_hash_table *ia64_info;
- asection *pltoff_sec;
-
- ia64_info = elfNN_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)
- {
- bfd_vma gp = _bfd_get_gp_value (abfd);
-
- /* Fill in the function descriptor. */
- bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
- bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
-
- /* Install dynamic relocations if needed. */
- if (!is_plt
- && info->shared
- && (!dyn_i->h
- || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
- || dyn_i->h->root.type != bfd_link_hash_undefweak))
- {
- unsigned int dyn_r_type;
-
- if (bfd_big_endian (abfd))
- dyn_r_type = R_IA64_REL64MSB;
- else
- dyn_r_type = R_IA64_REL64LSB;
-
- elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
- ia64_info->rel_pltoff_sec,
- dyn_i->pltoff_offset,
- dyn_r_type, 0, value);
- elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
- ia64_info->rel_pltoff_sec,
- dyn_i->pltoff_offset + 8,
- dyn_r_type, 0, gp);
- }
-
- 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;
-}
-
-/* Return the base VMA address which should be subtracted from real addresses
- when resolving @tprel() relocation.
- Main program TLS (whose template starts at PT_TLS p_vaddr)
- is assigned offset round(16, PT_TLS p_align). */
-
-static bfd_vma
-elfNN_ia64_tprel_base (info)
- struct bfd_link_info *info;
-{
- asection *tls_sec = elf_hash_table (info)->tls_sec;
-
- BFD_ASSERT (tls_sec != NULL);
- return tls_sec->vma - align_power ((bfd_vma) 16, tls_sec->alignment_power);
-}
-
-/* Return the base VMA address which should be subtracted from real addresses
- when resolving @dtprel() relocation.
- This is PT_TLS segment p_vaddr. */
-
-static bfd_vma
-elfNN_ia64_dtprel_base (info)
- struct bfd_link_info *info;
-{
- BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
- return elf_hash_table (info)->tls_sec->vma;
-}
-
-/* Called through qsort to sort the .IA_64.unwind section during a
- non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
- to the output bfd so we can do proper endianness frobbing. */
-
-static bfd *elfNN_ia64_unwind_entry_compare_bfd;
-
-static int
-elfNN_ia64_unwind_entry_compare (a, b)
- const PTR a;
- const PTR b;
-{
- bfd_vma av, bv;
-
- av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
- bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
-
- return (av < bv ? -1 : av > bv ? 1 : 0);
-}
-
-/* Make sure we've got ourselves a nice fat __gp value. */
-static bfd_boolean
-elfNN_ia64_choose_gp (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- 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;
- struct elfNN_ia64_link_hash_table *ia64_info;
-
- ia64_info = elfNN_ia64_hash_table (info);
-
- /* 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->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);
-
- return TRUE;
-}
-
-static bfd_boolean
-elfNN_ia64_final_link (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- struct elfNN_ia64_link_hash_table *ia64_info;
- asection *unwind_output_sec;
-
- ia64_info = elfNN_ia64_hash_table (info);
-
- /* Make sure we've got ourselves a nice fat __gp value. */
- if (!info->relocatable)
- {
- bfd_vma gp_val = _bfd_get_gp_value (abfd);
- struct elf_link_hash_entry *gp;
-
- if (gp_val == 0)
- {
- if (! elfNN_ia64_choose_gp (abfd, info))
- return FALSE;
- gp_val = _bfd_get_gp_value (abfd);
- }
-
- gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
- FALSE, FALSE);
- if (gp)
- {
- gp->root.type = bfd_link_hash_defined;
- gp->root.u.def.value = gp_val;
- gp->root.u.def.section = bfd_abs_section_ptr;
- }
- }
-
- /* If we're producing a final executable, we need to sort the contents
- of the .IA_64.unwind section. Force this section to be relocated
- into memory rather than written immediately to the output file. */
- unwind_output_sec = NULL;
- if (!info->relocatable)
- {
- asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
- if (s)
- {
- unwind_output_sec = s->output_section;
- unwind_output_sec->contents
- = bfd_malloc (unwind_output_sec->size);
- if (unwind_output_sec->contents == NULL)
- return FALSE;
- }
- }
-
- /* Invoke the regular ELF backend linker to do all the work. */
- if (!bfd_elf_final_link (abfd, info))
- return FALSE;
-
- if (unwind_output_sec)
- {
- elfNN_ia64_unwind_entry_compare_bfd = abfd;
- qsort (unwind_output_sec->contents,
- (size_t) (unwind_output_sec->size / 24),
- 24,
- elfNN_ia64_unwind_entry_compare);
-
- if (! bfd_set_section_contents (abfd, unwind_output_sec,
- unwind_output_sec->contents, (bfd_vma) 0,
- unwind_output_sec->size))
- return FALSE;
- }
-
- return TRUE;
-}
-
-static bfd_boolean
-elfNN_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 elfNN_ia64_link_hash_table *ia64_info;
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Rela *rel;
- Elf_Internal_Rela *relend;
- asection *srel;
- bfd_boolean ret_val = TRUE; /* for non-fatal errors */
- bfd_vma gp_val;
-
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- ia64_info = elfNN_ia64_hash_table (info);
-
- /* Infect various flags from the input section to the output section. */
- if (info->relocatable)
- {
- 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;
- return TRUE;
- }
-
- 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 elfNN_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;
- bfd_boolean dynamic_symbol_p;
- bfd_boolean undef_weak_ref;
-
- r_type = ELFNN_R_TYPE (rel->r_info);
- if (r_type > R_IA64_MAX_RELOC_CODE)
- {
- (*_bfd_error_handler)
- (_("%B: unknown relocation type %d"),
- input_bfd, (int) r_type);
- bfd_set_error (bfd_error_bad_value);
- ret_val = FALSE;
- continue;
- }
-
- howto = lookup_howto (r_type);
- r_symndx = ELFNN_R_SYM (rel->r_info);
- h = NULL;
- sym = NULL;
- sym_sec = NULL;
- undef_weak_ref = FALSE;
-
- if (r_symndx < symtab_hdr->sh_info)
- {
- /* Reloc against local symbol. */
- asection *msec;
- sym = local_syms + r_symndx;
- sym_sec = local_sections[r_symndx];
- msec = sym_sec;
- value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
- if ((sym_sec->flags & SEC_MERGE)
- && ELF_ST_TYPE (sym->st_info) == STT_SECTION
- && sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE)
- {
- struct elfNN_ia64_local_hash_entry *loc_h;
-
- loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
- if (loc_h && ! loc_h->sec_merge_done)
- {
- struct elfNN_ia64_dyn_sym_info *dynent;
-
- for (dynent = loc_h->info; dynent; dynent = dynent->next)
- {
- msec = sym_sec;
- dynent->addend =
- _bfd_merged_section_offset (output_bfd, &msec,
- elf_section_data (msec)->
- sec_info,
- sym->st_value
- + dynent->addend);
- dynent->addend -= sym->st_value;
- dynent->addend += msec->output_section->vma
- + msec->output_offset
- - sym_sec->output_section->vma
- - sym_sec->output_offset;
- }
- loc_h->sec_merge_done = 1;
- }
- }
- }
- else
- {
- bfd_boolean unresolved_reloc;
- bfd_boolean warned;
- struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
-
- RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
- r_symndx, symtab_hdr, sym_hashes,
- h, sym_sec, value,
- unresolved_reloc, warned);
-
- if (h->root.type == bfd_link_hash_undefweak)
- undef_weak_ref = TRUE;
- else if (warned)
- continue;
- }
-
- hit_addr = contents + rel->r_offset;
- value += rel->r_addend;
- dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
-
- 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)
- && r_symndx != 0
- && (input_section->flags & SEC_ALLOC) != 0)
- {
- unsigned int dyn_r_type;
- long dynindx;
- bfd_vma addend;
-
- BFD_ASSERT (srel != NULL);
-
- switch (r_type)
- {
- case R_IA64_IMM14:
- case R_IA64_IMM22:
- case R_IA64_IMM64:
- /* ??? People shouldn't be doing non-pic code in
- shared libraries nor dynamic executables. */
- (*_bfd_error_handler)
- (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
- input_bfd,
- h->root.root.string);
- ret_val = FALSE;
- continue;
-
- default:
- break;
- }
-
- /* 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;
- addend = rel->r_addend;
- value = 0;
- }
- 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:
- break;
- }
- dynindx = 0;
- addend = value;
- }
-
- elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
- srel, rel->r_offset, dyn_r_type,
- dynindx, addend);
- }
- /* Fall through. */
-
- case R_IA64_LTV32MSB:
- case R_IA64_LTV32LSB:
- case R_IA64_LTV64MSB:
- case R_IA64_LTV64LSB:
- r = elfNN_ia64_install_value (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)
- (_("%B: @gprel relocation against dynamic symbol %s"),
- input_bfd, h->root.root.string);
- ret_val = FALSE;
- continue;
- }
- value -= gp_val;
- r = elfNN_ia64_install_value (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 = elfNN_ia64_install_value (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 = elfNN_ia64_install_value (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);
- }
- if (!dyn_i->want_fptr || info->pie)
- {
- long dynindx;
- unsigned int dyn_r_type = r_type;
- bfd_vma addend = rel->r_addend;
-
- /* Otherwise, we expect the dynamic linker to create
- the entry. */
-
- if (dyn_i->want_fptr)
- {
- if (r_type == R_IA64_FPTR64I)
- {
- /* 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)
- (_("%B: linking non-pic code in a position independent executable"),
- input_bfd);
- ret_val = FALSE;
- continue;
- }
- dynindx = 0;
- addend = value;
- dyn_r_type = r_type + R_IA64_REL64LSB - R_IA64_FPTR64LSB;
- }
- else 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)));
- value = 0;
- }
- else
- {
- dynindx = (_bfd_elf_link_lookup_local_dynindx
- (info, input_bfd, (long) r_symndx));
- value = 0;
- }
-
- elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
- srel, rel->r_offset, dyn_r_type,
- dynindx, addend);
- }
-
- r = elfNN_ia64_install_value (hit_addr, value, r_type);
- break;
-
- case R_IA64_LTOFF_FPTR22:
- case R_IA64_LTOFF_FPTR64I:
- case R_IA64_LTOFF_FPTR32MSB:
- case R_IA64_LTOFF_FPTR32LSB:
- 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, (long) 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 = elfNN_ia64_install_value (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 && r_symndx != 0)
- {
- BFD_ASSERT (srel != NULL);
-
- elfNN_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_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_PCREL21BI:
- case R_IA64_PCREL21F:
- case R_IA64_PCREL21M:
- case R_IA64_PCREL22:
- case R_IA64_PCREL64I:
- /* The PCREL21BI reloc is specifically not intended for use with
- dynamic relocs. PCREL21F and PCREL21M are used for speculation
- fixup code, and thus probably ought not be dynamic. The
- PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
- if (dynamic_symbol_p)
- {
- const char *msg;
-
- if (r_type == R_IA64_PCREL21BI)
- msg = _("%B: @internal branch to dynamic symbol %s");
- else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
- msg = _("%B: speculation fixup to dynamic symbol %s");
- else
- msg = _("%B: @pcrel relocation against dynamic symbol %s");
- (*_bfd_error_handler) (msg, input_bfd, h->root.root.string);
- ret_val = FALSE;
- continue;
- }
- goto finish_pcrel;
-
- finish_pcrel:
- /* Make pc-relative. */
- value -= (input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset) & ~ (bfd_vma) 0x3;
- r = elfNN_ia64_install_value (hit_addr, value, r_type);
- break;
-
- case R_IA64_SEGREL32MSB:
- case R_IA64_SEGREL32LSB:
- case R_IA64_SEGREL64MSB:
- case R_IA64_SEGREL64LSB:
- if (r_symndx == 0)
- {
- /* If the input section was discarded from the output, then
- do nothing. */
- r = bfd_reloc_ok;
- }
- else
- {
- 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] == input_section->output_section)
- break;
- if (i >= 0)
- break;
- }
-
- if (m == NULL)
- {
- 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 = elfNN_ia64_install_value (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 to section where the symbol
- is defined. PR 475 */
- if (sym_sec)
- value -= sym_sec->output_section->vma;
- r = elfNN_ia64_install_value (hit_addr, value, r_type);
- break;
-
- case R_IA64_IPLTMSB:
- case R_IA64_IPLTLSB:
- /* Install a dynamic relocation for this reloc. */
- if ((dynamic_symbol_p || info->shared)
- && (input_section->flags & SEC_ALLOC) != 0)
- {
- BFD_ASSERT (srel != NULL);
-
- /* If we don't need dynamic symbol lookup, install two
- RELATIVE relocations. */
- if (!dynamic_symbol_p)
- {
- unsigned int dyn_r_type;
-
- if (r_type == R_IA64_IPLTMSB)
- dyn_r_type = R_IA64_REL64MSB;
- else
- dyn_r_type = R_IA64_REL64LSB;
-
- elfNN_ia64_install_dyn_reloc (output_bfd, info,
- input_section,
- srel, rel->r_offset,
- dyn_r_type, 0, value);
- elfNN_ia64_install_dyn_reloc (output_bfd, info,
- input_section,
- srel, rel->r_offset + 8,
- dyn_r_type, 0, gp_val);
- }
- else
- elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
- srel, rel->r_offset, r_type,
- h->dynindx, rel->r_addend);
- }
-
- if (r_type == R_IA64_IPLTMSB)
- r_type = R_IA64_DIR64MSB;
- else
- r_type = R_IA64_DIR64LSB;
- elfNN_ia64_install_value (hit_addr, value, r_type);
- r = elfNN_ia64_install_value (hit_addr + 8, gp_val, r_type);
- break;
-
- case R_IA64_TPREL14:
- case R_IA64_TPREL22:
- case R_IA64_TPREL64I:
- value -= elfNN_ia64_tprel_base (info);
- r = elfNN_ia64_install_value (hit_addr, value, r_type);
- break;
-
- case R_IA64_DTPREL14:
- case R_IA64_DTPREL22:
- case R_IA64_DTPREL64I:
- case R_IA64_DTPREL64LSB:
- case R_IA64_DTPREL64MSB:
- value -= elfNN_ia64_dtprel_base (info);
- r = elfNN_ia64_install_value (hit_addr, value, r_type);
- break;
-
- case R_IA64_LTOFF_TPREL22:
- case R_IA64_LTOFF_DTPMOD22:
- case R_IA64_LTOFF_DTPREL22:
- {
- int got_r_type;
- long dynindx = h ? h->dynindx : -1;
- bfd_vma r_addend = rel->r_addend;
-
- switch (r_type)
- {
- default:
- case R_IA64_LTOFF_TPREL22:
- if (!dynamic_symbol_p)
- {
- if (!info->shared)
- value -= elfNN_ia64_tprel_base (info);
- else
- {
- r_addend += value - elfNN_ia64_dtprel_base (info);
- dynindx = 0;
- }
- }
- got_r_type = R_IA64_TPREL64LSB;
- break;
- case R_IA64_LTOFF_DTPMOD22:
- if (!dynamic_symbol_p && !info->shared)
- value = 1;
- got_r_type = R_IA64_DTPMOD64LSB;
- break;
- case R_IA64_LTOFF_DTPREL22:
- if (!dynamic_symbol_p)
- value -= elfNN_ia64_dtprel_base (info);
- got_r_type = R_IA64_DTPREL64LSB;
- break;
- }
- dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
- value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
- value, got_r_type);
- value -= gp_val;
- r = elfNN_ia64_install_value (hit_addr, value, r_type);
- }
- break;
-
- 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 = NULL;
- 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, sym_sec);
- }
- if (!(*info->callbacks->reloc_overflow) (info, &h->root,
- name, howto->name,
- (bfd_vma) 0,
- input_bfd,
- input_section,
- rel->r_offset))
- return FALSE;
- ret_val = FALSE;
- }
- break;
- }
- }
-
- return ret_val;
-}
-
-static bfd_boolean
-elfNN_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 elfNN_ia64_link_hash_table *ia64_info;
- struct elfNN_ia64_dyn_sym_info *dyn_i;
-
- ia64_info = elfNN_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;
-
- 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);
- elfNN_ia64_install_value (loc, index, R_IA64_IMM22);
- elfNN_ia64_install_value (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);
- elfNN_ia64_install_value (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.c did some for us. */
- if (!h->def_regular)
- sym->st_shndx = SHN_UNDEF;
- }
+ case R_IA64_DIR32MSB:
+ case R_IA64_GPREL32MSB:
+ case R_IA64_FPTR32MSB:
+ case R_IA64_PCREL32MSB:
+ case R_IA64_LTOFF_FPTR32MSB:
+ case R_IA64_SEGREL32MSB:
+ case R_IA64_SECREL32MSB:
+ case R_IA64_LTV32MSB:
+ case R_IA64_DTPREL32MSB:
+ size = 4; bigendian = 1;
+ break;
- /* Create the dynamic relocation. */
- outrel.r_offset = pltoff_addr;
- if (bfd_little_endian (output_bfd))
- outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
- else
- outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
- outrel.r_addend = 0;
+ case R_IA64_DIR32LSB:
+ case R_IA64_GPREL32LSB:
+ case R_IA64_FPTR32LSB:
+ case R_IA64_PCREL32LSB:
+ case R_IA64_LTOFF_FPTR32LSB:
+ case R_IA64_SEGREL32LSB:
+ case R_IA64_SECREL32LSB:
+ case R_IA64_LTV32LSB:
+ case R_IA64_DTPREL32LSB:
+ size = 4; bigendian = 0;
+ break;
- /* 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.
+ 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:
+ case R_IA64_TPREL64MSB:
+ case R_IA64_DTPMOD64MSB:
+ case R_IA64_DTPREL64MSB:
+ size = 8; bigendian = 1;
+ break;
- 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. */
+ 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:
+ case R_IA64_TPREL64LSB:
+ case R_IA64_DTPMOD64LSB:
+ case R_IA64_DTPREL64LSB:
+ size = 8; bigendian = 0;
+ break;
- loc = ia64_info->rel_pltoff_sec->contents;
- loc += ((ia64_info->rel_pltoff_sec->reloc_count + index)
- * sizeof (ElfNN_External_Rela));
- bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
+ /* Unsupported / Dynamic relocations. */
+ default:
+ return bfd_reloc_notsupported;
}
- /* 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 bfd_boolean
-elfNN_ia64_finish_dynamic_sections (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- struct elfNN_ia64_link_hash_table *ia64_info;
- bfd *dynobj;
-
- ia64_info = elfNN_ia64_hash_table (info);
- dynobj = ia64_info->root.dynobj;
-
- if (elf_hash_table (info)->dynamic_sections_created)
+ switch (opnd)
{
- ElfNN_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 = (ElfNN_External_Dyn *) sdyn->contents;
- dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
-
- gp_val = _bfd_get_gp_value (abfd);
-
- for (; dyncon < dynconend; dyncon++)
- {
- Elf_Internal_Dyn dyn;
-
- bfd_elfNN_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 (ElfNN_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 (ElfNN_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 (ElfNN_External_Rela));
- break;
- }
-
- bfd_elfNN_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);
+ case IA64_OPND_IMMU64:
+ hit_addr -= (intptr_t) hit_addr & 0x3;
+ t0 = bfd_getl64 (hit_addr);
+ t1 = bfd_getl64 (hit_addr + 8);
- pltres = (sgotplt->output_section->vma
- + sgotplt->output_offset
- - gp_val);
+ /* 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 */
- elfNN_ia64_install_value (loc+1, pltres, R_IA64_GPREL22);
- }
- }
+ /* 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));
- return TRUE;
-}
-\f
-/* ELF file flag handling: */
+ 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 */
-/* Function to keep IA-64 specific file flags. */
-static bfd_boolean
-elfNN_ia64_set_private_flags (abfd, flags)
- bfd *abfd;
- flagword flags;
-{
- BFD_ASSERT (!elf_flags_init (abfd)
- || elf_elfheader (abfd)->e_flags == flags);
+ bfd_putl64 (t0, hit_addr);
+ bfd_putl64 (t1, hit_addr + 8);
+ break;
- elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = TRUE;
- return TRUE;
-}
+ case IA64_OPND_TGT64:
+ hit_addr -= (intptr_t) hit_addr & 0x3;
+ t0 = bfd_getl64 (hit_addr);
+ t1 = bfd_getl64 (hit_addr + 8);
-/* Merge backend specific data from an object file to the output
- object file when linking. */
-static bfd_boolean
-elfNN_ia64_merge_private_bfd_data (ibfd, obfd)
- bfd *ibfd, *obfd;
-{
- flagword out_flags;
- flagword in_flags;
- bfd_boolean ok = TRUE;
+ /* 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 */
- /* 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;
+ /* First, clear the bits that form the 64 bit constant. */
+ t0 &= ~(0x3ffffLL << 46);
+ t1 &= ~(0x7fffffLL
+ | ((1LL << 36 | 0xfffffLL << 13) << 23));
- in_flags = elf_elfheader (ibfd)->e_flags;
- out_flags = elf_elfheader (obfd)->e_flags;
+ 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 */
- if (! elf_flags_init (obfd))
- {
- elf_flags_init (obfd) = TRUE;
- elf_elfheader (obfd)->e_flags = in_flags;
+ bfd_putl64 (t0, hit_addr);
+ bfd_putl64 (t1, hit_addr + 8);
+ break;
- if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
- && bfd_get_arch_info (obfd)->the_default)
+ default:
+ switch ((intptr_t) hit_addr & 0x3)
{
- return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
- bfd_get_mach (ibfd));
+ 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_getl64 (hit_addr);
+ insn = (dword >> shift) & 0x1ffffffffffLL;
- return TRUE;
- }
-
- /* Check flag compatibility. */
- if (in_flags == out_flags)
- return TRUE;
-
- /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
- if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
- elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
-
- if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
- {
- (*_bfd_error_handler)
- (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
- 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)
- (_("%B: linking big-endian files with little-endian files"),
- 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)
- (_("%B: linking 64-bit files with 32-bit files"),
- ibfd);
-
- bfd_set_error (bfd_error_bad_value);
- ok = FALSE;
- }
- if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
- {
- (*_bfd_error_handler)
- (_("%B: linking constant-gp files with non-constant-gp files"),
- ibfd);
-
- bfd_set_error (bfd_error_bad_value);
- ok = FALSE;
- }
- if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
- != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
- {
- (*_bfd_error_handler)
- (_("%B: linking auto-pic files with non-auto-pic files"),
- ibfd);
-
- bfd_set_error (bfd_error_bad_value);
- ok = FALSE;
- }
-
- return ok;
-}
-
-static bfd_boolean
-elfNN_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%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_REDUCEDFP) ? "REDUCEDFP, " : "",
- (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
- (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
- (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
- (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
-
- _bfd_elf_print_private_bfd_data (abfd, ptr);
- return TRUE;
-}
-
-static enum elf_reloc_type_class
-elfNN_ia64_reloc_type_class (rela)
- const Elf_Internal_Rela *rela;
-{
- switch ((int) ELFNN_R_TYPE (rela->r_info))
- {
- case R_IA64_REL32MSB:
- case R_IA64_REL32LSB:
- case R_IA64_REL64MSB:
- case R_IA64_REL64LSB:
- return reloc_class_relative;
- case R_IA64_IPLTMSB:
- case R_IA64_IPLTLSB:
- return reloc_class_plt;
- case R_IA64_COPY:
- return reloc_class_copy;
- default:
- return reloc_class_normal;
- }
-}
-
-static struct bfd_elf_special_section const elfNN_ia64_special_sections[]=
-{
- { ".sbss", 5, -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
- { ".sdata", 6, -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
- { NULL, 0, 0, 0, 0 }
-};
-
-static bfd_boolean
-elfNN_ia64_hpux_vec (const bfd_target *vec)
-{
- extern const bfd_target bfd_elfNN_ia64_hpux_big_vec;
- return (vec == & bfd_elfNN_ia64_hpux_big_vec);
-}
-
-static void
-elfNN_hpux_post_process_headers (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info ATTRIBUTE_UNUSED;
-{
- Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd);
-
- i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
- i_ehdrp->e_ident[EI_ABIVERSION] = 1;
-}
-
-bfd_boolean
-elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval)
- bfd *abfd ATTRIBUTE_UNUSED;
- asection *sec;
- int *retval;
-{
- if (bfd_is_com_section (sec))
- {
- *retval = SHN_IA_64_ANSI_COMMON;
- return TRUE;
- }
- return FALSE;
-}
+ op = elf64_ia64_operands + opnd;
+ err = (*op->insert) (op, val, &insn);
+ if (err)
+ return bfd_reloc_overflow;
-static void
-elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
- asymbol *asym)
-{
- elf_symbol_type *elfsym = (elf_symbol_type *) asym;;
+ dword &= ~(0x1ffffffffffLL << shift);
+ dword |= (insn << shift);
+ bfd_putl64 (dword, hit_addr);
+ break;
- switch (elfsym->internal_elf_sym.st_shndx)
- {
- case SHN_IA_64_ANSI_COMMON:
- asym->section = bfd_com_section_ptr;
- asym->value = elfsym->internal_elf_sym.st_size;
- asym->flags &= ~BSF_GLOBAL;
+ 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;
}
-}
-
-\f
-#define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
-#define TARGET_LITTLE_NAME "elfNN-ia64-little"
-#define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
-#define TARGET_BIG_NAME "elfNN-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 \
- elfNN_ia64_section_from_shdr
-#define elf_backend_section_flags \
- elfNN_ia64_section_flags
-#define elf_backend_fake_sections \
- elfNN_ia64_fake_sections
-#define elf_backend_final_write_processing \
- elfNN_ia64_final_write_processing
-#define elf_backend_add_symbol_hook \
- elfNN_ia64_add_symbol_hook
-#define elf_backend_additional_program_headers \
- elfNN_ia64_additional_program_headers
-#define elf_backend_modify_segment_map \
- elfNN_ia64_modify_segment_map
-#define elf_info_to_howto \
- elfNN_ia64_info_to_howto
-
-#define bfd_elfNN_bfd_reloc_type_lookup \
- elfNN_ia64_reloc_type_lookup
-#define bfd_elfNN_bfd_is_local_label_name \
- elfNN_ia64_is_local_label_name
-#define bfd_elfNN_bfd_relax_section \
- elfNN_ia64_relax_section
-
-/* Stuff for the BFD linker: */
-#define bfd_elfNN_bfd_link_hash_table_create \
- elfNN_ia64_hash_table_create
-#define bfd_elfNN_bfd_link_hash_table_free \
- elfNN_ia64_hash_table_free
-#define elf_backend_create_dynamic_sections \
- elfNN_ia64_create_dynamic_sections
-#define elf_backend_check_relocs \
- elfNN_ia64_check_relocs
-#define elf_backend_adjust_dynamic_symbol \
- elfNN_ia64_adjust_dynamic_symbol
-#define elf_backend_size_dynamic_sections \
- elfNN_ia64_size_dynamic_sections
-#define elf_backend_relocate_section \
- elfNN_ia64_relocate_section
-#define elf_backend_finish_dynamic_symbol \
- elfNN_ia64_finish_dynamic_symbol
-#define elf_backend_finish_dynamic_sections \
- elfNN_ia64_finish_dynamic_sections
-#define bfd_elfNN_bfd_final_link \
- elfNN_ia64_final_link
-#define bfd_elfNN_bfd_merge_private_bfd_data \
- elfNN_ia64_merge_private_bfd_data
-#define bfd_elfNN_bfd_set_private_flags \
- elfNN_ia64_set_private_flags
-#define bfd_elfNN_bfd_print_private_bfd_data \
- elfNN_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_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 elfNN_ia64_hash_copy_indirect
-#define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
-#define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
-#define elf_backend_rela_normal 1
-#define elf_backend_special_sections elfNN_ia64_special_sections
-
-/* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
- SHF_LINK_ORDER. But it doesn't set theh sh_link or sh_info fields.
- We don't want to flood users with so many error messages. We turn
- off the warning for now. It will be turned on later when the Intel
- compiler is fixed. */
-#define elf_backend_link_order_error_handler NULL
-
-#include "elfNN-target.h"
-
-/* HPUX-specific vectors. */
-
-#undef TARGET_LITTLE_SYM
-#undef TARGET_LITTLE_NAME
-#undef TARGET_BIG_SYM
-#define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
-#undef TARGET_BIG_NAME
-#define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
-
-/* These are HP-UX specific functions. */
-
-#undef elf_backend_post_process_headers
-#define elf_backend_post_process_headers elfNN_hpux_post_process_headers
-
-#undef elf_backend_section_from_bfd_section
-#define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
-
-#undef elf_backend_symbol_processing
-#define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
-
-#undef elf_backend_want_p_paddr_set_to_zero
-#define elf_backend_want_p_paddr_set_to_zero 1
-
-#undef ELF_MAXPAGESIZE
-#define ELF_MAXPAGESIZE 0x1000 /* 1K */
-
-#undef elfNN_bed
-#define elfNN_bed elfNN_ia64_hpux_bed
-
-#include "elfNN-target.h"
-
-#undef elf_backend_want_p_paddr_set_to_zero
+ return bfd_reloc_ok;
+}
projects / binutils.git / blobdiff