/* X86-64 specific support for ELF
Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
- 2010, 2011
+ 2010, 2011, 2012
Free Software Foundation, Inc.
Contributed by Jan Hubicka <jh@suse.cz>.
#include "bfd_stdint.h"
#include "objalloc.h"
#include "hashtab.h"
+#include "dwarf2.h"
+#include "libiberty.h"
#include "elf/x86-64.h"
+#ifdef CORE_HEADER
+#include <stdarg.h>
+#include CORE_HEADER
+#endif
+
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
#define MINUS_ONE (~ (bfd_vma) 0)
HOWTO(R_X86_64_IRELATIVE, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
bfd_elf_generic_reloc, "R_X86_64_IRELATIVE", FALSE, MINUS_ONE,
MINUS_ONE, FALSE),
+ HOWTO(R_X86_64_RELATIVE64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_X86_64_RELATIVE64", FALSE, MINUS_ONE,
+ MINUS_ONE, FALSE),
/* We have a gap in the reloc numbers here.
R_X86_64_standard counts the number up to this point, and
/* GNU extension to record C++ vtable member usage. */
HOWTO (R_X86_64_GNU_VTENTRY, 0, 4, 0, FALSE, 0, complain_overflow_dont,
_bfd_elf_rel_vtable_reloc_fn, "R_X86_64_GNU_VTENTRY", FALSE, 0, 0,
- FALSE)
+ FALSE),
+
+/* Use complain_overflow_bitfield on R_X86_64_32 for x32. */
+ HOWTO(R_X86_64_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
+ bfd_elf_generic_reloc, "R_X86_64_32", FALSE, 0xffffffff, 0xffffffff,
+ FALSE)
};
#define IS_X86_64_PCREL_TYPE(TYPE) \
{
unsigned i;
- if (r_type < (unsigned int) R_X86_64_GNU_VTINHERIT
- || r_type >= (unsigned int) R_X86_64_max)
+ if (r_type == (unsigned int) R_X86_64_32)
+ {
+ if (ABI_64_P (abfd))
+ i = r_type;
+ else
+ i = ARRAY_SIZE (x86_64_elf_howto_table) - 1;
+ }
+ else if (r_type < (unsigned int) R_X86_64_GNU_VTINHERIT
+ || r_type >= (unsigned int) R_X86_64_max)
{
if (r_type >= (unsigned int) R_X86_64_standard)
{
}
static reloc_howto_type *
-elf_x86_64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+elf_x86_64_reloc_name_lookup (bfd *abfd,
const char *r_name)
{
unsigned int i;
- for (i = 0;
- i < (sizeof (x86_64_elf_howto_table)
- / sizeof (x86_64_elf_howto_table[0]));
- i++)
+ if (!ABI_64_P (abfd) && strcasecmp (r_name, "R_X86_64_32") == 0)
+ {
+ /* Get x32 R_X86_64_32. */
+ reloc_howto_type *reloc
+ = &x86_64_elf_howto_table[ARRAY_SIZE (x86_64_elf_howto_table) - 1];
+ BFD_ASSERT (reloc->type == (unsigned int) R_X86_64_32);
+ return reloc;
+ }
+
+ for (i = 0; i < ARRAY_SIZE (x86_64_elf_howto_table); i++)
if (x86_64_elf_howto_table[i].name != NULL
&& strcasecmp (x86_64_elf_howto_table[i].name, r_name) == 0)
return &x86_64_elf_howto_table[i];
default:
return FALSE;
+ case 296: /* sizeof(istruct elf_prstatus) on Linux/x32 */
+ /* pr_cursig */
+ elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+
+ /* pr_pid */
+ elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
+
+ /* pr_reg */
+ offset = 72;
+ size = 216;
+
+ break;
+
case 336: /* sizeof(istruct elf_prstatus) on Linux/x86_64 */
/* pr_cursig */
elf_tdata (abfd)->core_signal
default:
return FALSE;
+ case 124: /* sizeof(struct elf_prpsinfo) on Linux/x32 */
+ elf_tdata (abfd)->core_pid
+ = bfd_get_32 (abfd, note->descdata + 12);
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ break;
+
case 136: /* sizeof(struct elf_prpsinfo) on Linux/x86_64 */
elf_tdata (abfd)->core_pid
= bfd_get_32 (abfd, note->descdata + 24);
return TRUE;
}
+
+#ifdef CORE_HEADER
+static char *
+elf_x86_64_write_core_note (bfd *abfd, char *buf, int *bufsiz,
+ int note_type, ...)
+{
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ va_list ap;
+ const char *fname, *psargs;
+ long pid;
+ int cursig;
+ const void *gregs;
+
+ switch (note_type)
+ {
+ default:
+ return NULL;
+
+ case NT_PRPSINFO:
+ va_start (ap, note_type);
+ fname = va_arg (ap, const char *);
+ psargs = va_arg (ap, const char *);
+ va_end (ap);
+
+ if (bed->s->elfclass == ELFCLASS32)
+ {
+ prpsinfo32_t data;
+ memset (&data, 0, sizeof (data));
+ strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
+ strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
+ return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
+ &data, sizeof (data));
+ }
+ else
+ {
+ prpsinfo_t data;
+ memset (&data, 0, sizeof (data));
+ strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
+ strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
+ return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
+ &data, sizeof (data));
+ }
+ /* NOTREACHED */
+
+ case NT_PRSTATUS:
+ va_start (ap, note_type);
+ pid = va_arg (ap, long);
+ cursig = va_arg (ap, int);
+ gregs = va_arg (ap, const void *);
+ va_end (ap);
+
+ if (bed->s->elfclass == ELFCLASS32)
+ {
+ if (bed->elf_machine_code == EM_X86_64)
+ {
+ prstatusx32_t prstat;
+ memset (&prstat, 0, sizeof (prstat));
+ prstat.pr_pid = pid;
+ prstat.pr_cursig = cursig;
+ memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
+ return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
+ &prstat, sizeof (prstat));
+ }
+ else
+ {
+ prstatus32_t prstat;
+ memset (&prstat, 0, sizeof (prstat));
+ prstat.pr_pid = pid;
+ prstat.pr_cursig = cursig;
+ memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
+ return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
+ &prstat, sizeof (prstat));
+ }
+ }
+ else
+ {
+ prstatus_t prstat;
+ memset (&prstat, 0, sizeof (prstat));
+ prstat.pr_pid = pid;
+ prstat.pr_cursig = cursig;
+ memcpy (&prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
+ return elfcore_write_note (abfd, buf, bufsiz, "CORE", note_type,
+ &prstat, sizeof (prstat));
+ }
+ }
+ /* NOTREACHED */
+}
+#endif
\f
/* Functions for the x86-64 ELF linker. */
section. */
#define ELF64_DYNAMIC_INTERPRETER "/lib/ld64.so.1"
-#define ELF32_DYNAMIC_INTERPRETER "/lib/ld32.so.1"
+#define ELF32_DYNAMIC_INTERPRETER "/lib/ldx32.so.1"
/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
copying dynamic variables from a shared lib into an app's dynbss
0, 0, 0, 0 /* replaced with offset to start of .plt0. */
};
+/* .eh_frame covering the .plt section. */
+
+static const bfd_byte elf_x86_64_eh_frame_plt[] =
+{
+#define PLT_CIE_LENGTH 20
+#define PLT_FDE_LENGTH 36
+#define PLT_FDE_START_OFFSET 4 + PLT_CIE_LENGTH + 8
+#define PLT_FDE_LEN_OFFSET 4 + PLT_CIE_LENGTH + 12
+ PLT_CIE_LENGTH, 0, 0, 0, /* CIE length */
+ 0, 0, 0, 0, /* CIE ID */
+ 1, /* CIE version */
+ 'z', 'R', 0, /* Augmentation string */
+ 1, /* Code alignment factor */
+ 0x78, /* Data alignment factor */
+ 16, /* Return address column */
+ 1, /* Augmentation size */
+ DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding */
+ DW_CFA_def_cfa, 7, 8, /* DW_CFA_def_cfa: r7 (rsp) ofs 8 */
+ DW_CFA_offset + 16, 1, /* DW_CFA_offset: r16 (rip) at cfa-8 */
+ DW_CFA_nop, DW_CFA_nop,
+
+ PLT_FDE_LENGTH, 0, 0, 0, /* FDE length */
+ PLT_CIE_LENGTH + 8, 0, 0, 0, /* CIE pointer */
+ 0, 0, 0, 0, /* R_X86_64_PC32 .plt goes here */
+ 0, 0, 0, 0, /* .plt size goes here */
+ 0, /* Augmentation size */
+ DW_CFA_def_cfa_offset, 16, /* DW_CFA_def_cfa_offset: 16 */
+ DW_CFA_advance_loc + 6, /* DW_CFA_advance_loc: 6 to __PLT__+6 */
+ DW_CFA_def_cfa_offset, 24, /* DW_CFA_def_cfa_offset: 24 */
+ DW_CFA_advance_loc + 10, /* DW_CFA_advance_loc: 10 to __PLT__+16 */
+ DW_CFA_def_cfa_expression, /* DW_CFA_def_cfa_expression */
+ 11, /* Block length */
+ DW_OP_breg7, 8, /* DW_OP_breg7 (rsp): 8 */
+ DW_OP_breg16, 0, /* DW_OP_breg16 (rip): 0 */
+ DW_OP_lit15, DW_OP_and, DW_OP_lit11, DW_OP_ge,
+ DW_OP_lit3, DW_OP_shl, DW_OP_plus,
+ DW_CFA_nop, DW_CFA_nop, DW_CFA_nop, DW_CFA_nop
+};
+
/* x86-64 ELF linker hash entry. */
struct elf_x86_64_link_hash_entry
/* Short-cuts to get to dynamic linker sections. */
asection *sdynbss;
asection *srelbss;
+ asection *plt_eh_frame;
union
{
/* The offset into sgot of the GOT entry used by the PLT entry
above. */
bfd_vma tlsdesc_got;
+
+ /* The index of the next R_X86_64_JUMP_SLOT entry in .rela.plt. */
+ bfd_vma next_jump_slot_index;
+ /* The index of the next R_X86_64_IRELATIVE entry in .rela.plt. */
+ bfd_vma next_irelative_index;
};
/* Get the x86-64 ELF linker hash table from a link_info structure. */
ret->sdynbss = NULL;
ret->srelbss = NULL;
+ ret->plt_eh_frame = NULL;
ret->sym_cache.abfd = NULL;
ret->tlsdesc_plt = 0;
ret->tlsdesc_got = 0;
ret->tls_ld_got.refcount = 0;
ret->sgotplt_jump_table_size = 0;
ret->tls_module_base = NULL;
+ ret->next_jump_slot_index = 0;
+ ret->next_irelative_index = 0;
if (ABI_64_P (abfd))
{
|| (!info->shared && !htab->srelbss))
abort ();
+ if (!info->no_ld_generated_unwind_info
+ && bfd_get_section_by_name (dynobj, ".eh_frame") == NULL
+ && htab->elf.splt != NULL)
+ {
+ flagword flags = get_elf_backend_data (dynobj)->dynamic_sec_flags;
+ htab->plt_eh_frame
+ = bfd_make_section_with_flags (dynobj, ".eh_frame",
+ flags | SEC_READONLY);
+ if (htab->plt_eh_frame == NULL
+ || !bfd_set_section_alignment (dynobj, htab->plt_eh_frame, 3))
+ return FALSE;
+
+ htab->plt_eh_frame->size = sizeof (elf_x86_64_eh_frame_plt);
+ htab->plt_eh_frame->contents
+ = bfd_alloc (dynobj, htab->plt_eh_frame->size);
+ memcpy (htab->plt_eh_frame->contents, elf_x86_64_eh_frame_plt,
+ sizeof (elf_x86_64_eh_frame_plt));
+ }
return TRUE;
}
return TRUE;
}
-typedef union
- {
- unsigned char c[2];
- uint16_t i;
- }
-x86_64_opcode16;
-
-typedef union
- {
- unsigned char c[4];
- uint32_t i;
- }
-x86_64_opcode32;
-
/* Return TRUE if the TLS access code sequence support transition
from R_TYPE. */
.word 0x6666; rex64; call __tls_get_addr
can transit to different access model. */
- static x86_64_opcode32 call = { { 0x66, 0x66, 0x48, 0xe8 } };
+ static const unsigned char call[] = { 0x66, 0x66, 0x48, 0xe8 };
+ static const unsigned char leaq[] = { 0x66, 0x48, 0x8d, 0x3d };
+
if ((offset + 12) > sec->size
- || bfd_get_32 (abfd, contents + offset + 4) != call.i)
+ || memcmp (contents + offset + 4, call, 4) != 0)
return FALSE;
if (ABI_64_P (abfd))
{
- static x86_64_opcode32 leaq = { { 0x66, 0x48, 0x8d, 0x3d } };
if (offset < 4
- || bfd_get_32 (abfd, contents + offset - 4) != leaq.i)
+ || memcmp (contents + offset - 4, leaq, 4) != 0)
return FALSE;
}
else
{
- static x86_64_opcode16 lea = { { 0x8d, 0x3d } };
if (offset < 3
- || bfd_get_8 (abfd, contents + offset - 3) != 0x48
- || bfd_get_16 (abfd, contents + offset - 2) != lea.i)
+ || memcmp (contents + offset - 3, leaq + 1, 3) != 0)
return FALSE;
}
}
call __tls_get_addr
can transit to different access model. */
- static x86_64_opcode32 ld = { { 0x48, 0x8d, 0x3d, 0xe8 } };
- x86_64_opcode32 op;
+ static const unsigned char lea[] = { 0x48, 0x8d, 0x3d };
if (offset < 3 || (offset + 9) > sec->size)
return FALSE;
- op.i = bfd_get_32 (abfd, contents + offset - 3);
- op.c[3] = bfd_get_8 (abfd, contents + offset + 4);
- if (op.i != ld.i)
+ if (memcmp (contents + offset - 3, lea, 3) != 0
+ || 0xe8 != *(contents + offset + 4))
return FALSE;
}
if (offset + 2 <= sec->size)
{
/* Make sure that it's a call *x@tlsdesc(%rax). */
- static x86_64_opcode16 call = { { 0xff, 0x10 } };
- return bfd_get_16 (abfd, contents + offset) == call.i;
+ static const unsigned char call[] = { 0xff, 0x10 };
+ return memcmp (contents + offset, call, 2) == 0;
}
return FALSE;
default:
break;
- case R_X86_64_64:
case R_X86_64_DTPOFF64:
case R_X86_64_TPOFF64:
case R_X86_64_PC64:
case R_X86_64_PLT32:
case R_X86_64_GOTPCREL:
case R_X86_64_GOTPCREL64:
- if (!_bfd_elf_create_ifunc_sections (abfd, info))
+ if (htab->elf.dynobj == NULL)
+ htab->elf.dynobj = abfd;
+ if (!_bfd_elf_create_ifunc_sections (htab->elf.dynobj, info))
return FALSE;
break;
}
}
}
- if (h->size == 0)
- {
- (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
- h->root.root.string);
- return TRUE;
- }
-
/* We must allocate the symbol in our .dynbss section, which will
become part of the .bss section of the executable. There will be
an entry for this symbol in the .dynsym section. The dynamic
/* We must generate a R_X86_64_COPY reloc to tell the dynamic linker
to copy the initial value out of the dynamic object and into the
runtime process image. */
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
+ if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
{
const struct elf_backend_data *bed;
bed = get_elf_backend_data (info->output_bfd);
if (h->root.type == bfd_link_hash_indirect)
return TRUE;
- if (h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
eh = (struct elf_x86_64_link_hash_entry *) h;
info = (struct bfd_link_info *) inf;
struct elf_x86_64_link_hash_entry *eh;
struct elf_dyn_relocs *p;
- if (h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
/* Skip local IFUNC symbols. */
if (h->forced_local && h->type == STT_GNU_IFUNC)
return TRUE;
{
srel = elf_section_data (p->sec)->sreloc;
srel->size += p->count * bed->s->sizeof_rela;
- if ((p->sec->output_section->flags & SEC_READONLY) != 0)
+ if ((p->sec->output_section->flags & SEC_READONLY) != 0
+ && (info->flags & DF_TEXTREL) == 0)
{
info->flags |= DF_TEXTREL;
if (info->warn_shared_textrel && info->shared)
info->callbacks->einfo (_("%P: %B: warning: relocation in readonly section `%A'.\n"),
p->sec->owner, p->sec);
- break;
}
}
}
incremented. However, when we reserve space for TLS descriptors,
it's not incremented, so in order to compute the space reserved
for them, it suffices to multiply the reloc count by the jump
- slot size. */
+ slot size.
+
+ PR ld/13302: We start next_irelative_index at the end of .rela.plt
+ so that R_X86_64_IRELATIVE entries come last. */
if (htab->elf.srelplt)
- htab->sgotplt_jump_table_size
- = elf_x86_64_compute_jump_table_size (htab);
+ {
+ htab->sgotplt_jump_table_size
+ = elf_x86_64_compute_jump_table_size (htab);
+ htab->next_irelative_index = htab->elf.srelplt->reloc_count - 1;
+ }
+ else if (htab->elf.irelplt)
+ htab->next_irelative_index = htab->elf.irelplt->reloc_count - 1;
if (htab->tlsdesc_plt)
{
return FALSE;
}
+ if (htab->plt_eh_frame != NULL
+ && htab->elf.splt != NULL
+ && htab->elf.splt->size != 0
+ && (htab->elf.splt->flags & SEC_EXCLUDE) == 0)
+ bfd_put_32 (dynobj, htab->elf.splt->size,
+ htab->plt_eh_frame->contents + PLT_FDE_LEN_OFFSET);
+
if (htab->elf.dynamic_sections_created)
{
/* Add some entries to the .dynamic section. We fill in the
return FALSE;
}
- howto = x86_64_elf_howto_table + r_type;
+ if (r_type != (int) R_X86_64_32
+ || ABI_64_P (output_bfd))
+ howto = x86_64_elf_howto_table + r_type;
+ else
+ howto = (x86_64_elf_howto_table
+ + ARRAY_SIZE (x86_64_elf_howto_table) - 1);
r_symndx = htab->r_sym (rel->r_info);
h = NULL;
sym = NULL;
if (info->relocatable)
continue;
+ if (rel->r_addend == 0
+ && r_type == R_X86_64_64
+ && !ABI_64_P (output_bfd))
+ {
+ /* For x32, treat R_X86_64_64 like R_X86_64_32 and zero-extend
+ it to 64bit if addend is zero. */
+ r_type = R_X86_64_32;
+ memset (contents + rel->r_offset + 4, 0, 4);
+ }
+
/* Since STT_GNU_IFUNC symbol must go through PLT, we handle
it here if it is defined in a non-shared object. */
if (h != NULL
}
/* Generate dynamic relcoation only when there is a
- non-GOF reference in a shared object. */
+ non-GOT reference in a shared object. */
if (info->shared && h->non_got_ref)
{
Elf_Internal_Rela outrel;
case R_X86_64_PC16:
case R_X86_64_PC32:
if (info->shared
- && ABI_64_P (output_bfd)
&& (input_section->flags & SEC_ALLOC) != 0
&& (input_section->flags & SEC_READONLY) != 0
&& h != NULL)
outrel.r_info = htab->r_info (0, R_X86_64_RELATIVE);
outrel.r_addend = relocation + rel->r_addend;
}
+ else if (r_type == R_X86_64_64
+ && !ABI_64_P (output_bfd))
+ {
+ relocate = TRUE;
+ outrel.r_info = htab->r_info (0,
+ R_X86_64_RELATIVE64);
+ outrel.r_addend = relocation + rel->r_addend;
+ }
else
{
long sindx;
break;
case R_X86_64_TPOFF32:
+ case R_X86_64_TPOFF64:
BFD_ASSERT (info->executable);
relocation = elf_x86_64_tpoff (info, relocation);
break;
not process them. */
if (unresolved_reloc
&& !((input_section->flags & SEC_DEBUGGING) != 0
- && h->def_dynamic))
+ && h->def_dynamic)
+ && _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset) != (bfd_vma) -1)
(*_bfd_error_handler)
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
input_bfd,
if (plt == htab->elf.splt)
{
- plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
- got_offset = (plt_index + 3) * GOT_ENTRY_SIZE;
+ got_offset = h->plt.offset / PLT_ENTRY_SIZE - 1;
+ got_offset = (got_offset + 3) * GOT_ENTRY_SIZE;
}
else
{
- plt_index = h->plt.offset / PLT_ENTRY_SIZE;
- got_offset = plt_index * GOT_ENTRY_SIZE;
+ got_offset = h->plt.offset / PLT_ENTRY_SIZE;
+ got_offset = got_offset * GOT_ENTRY_SIZE;
}
/* Fill in the entry in the procedure linkage table. */
- 6),
plt->contents + h->plt.offset + 2);
- /* Don't fill PLT entry for static executables. */
- if (plt == htab->elf.splt)
- {
- /* Put relocation index. */
- bfd_put_32 (output_bfd, plt_index,
- plt->contents + h->plt.offset + 7);
- /* Put offset for jmp .PLT0. */
- bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE),
- plt->contents + h->plt.offset + 12);
- }
-
/* Fill in the entry in the global offset table, initially this
points to the pushq instruction in the PLT which is at offset 6. */
bfd_put_64 (output_bfd, (plt->output_section->vma
rela.r_addend = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
+ /* R_X86_64_IRELATIVE comes last. */
+ plt_index = htab->next_irelative_index--;
}
else
{
rela.r_info = htab->r_info (h->dynindx, R_X86_64_JUMP_SLOT);
rela.r_addend = 0;
+ plt_index = htab->next_jump_slot_index++;
+ }
+
+ /* Don't fill PLT entry for static executables. */
+ if (plt == htab->elf.splt)
+ {
+ /* Put relocation index. */
+ bfd_put_32 (output_bfd, plt_index,
+ plt->contents + h->plt.offset + 7);
+ /* Put offset for jmp .PLT0. */
+ bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE),
+ plt->contents + h->plt.offset + 12);
}
bed = get_elf_backend_data (output_bfd);
GOT_ENTRY_SIZE;
}
+ /* Adjust .eh_frame for .plt section. */
+ if (htab->plt_eh_frame != NULL)
+ {
+ if (htab->elf.splt != NULL
+ && htab->elf.splt->size != 0
+ && (htab->elf.splt->flags & SEC_EXCLUDE) == 0
+ && htab->elf.splt->output_section != NULL
+ && htab->plt_eh_frame->output_section != NULL)
+ {
+ bfd_vma plt_start = htab->elf.splt->output_section->vma;
+ bfd_vma eh_frame_start = htab->plt_eh_frame->output_section->vma
+ + htab->plt_eh_frame->output_offset
+ + PLT_FDE_START_OFFSET;
+ bfd_put_signed_32 (dynobj, plt_start - eh_frame_start,
+ htab->plt_eh_frame->contents
+ + PLT_FDE_START_OFFSET);
+ }
+ if (htab->plt_eh_frame->sec_info_type
+ == ELF_INFO_TYPE_EH_FRAME)
+ {
+ if (! _bfd_elf_write_section_eh_frame (output_bfd, info,
+ htab->plt_eh_frame,
+ htab->plt_eh_frame->contents))
+ return FALSE;
+ }
+ }
+
if (htab->elf.sgot && htab->elf.sgot->size > 0)
elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
= GOT_ENTRY_SIZE;
#define elf_backend_want_plt_sym 0
#define elf_backend_got_header_size (GOT_ENTRY_SIZE*3)
#define elf_backend_rela_normal 1
+#define elf_backend_plt_alignment 4
#define elf_info_to_howto elf_x86_64_info_to_howto
#define elf_backend_gc_sweep_hook elf_x86_64_gc_sweep_hook
#define elf_backend_grok_prstatus elf_x86_64_grok_prstatus
#define elf_backend_grok_psinfo elf_x86_64_grok_psinfo
+#ifdef CORE_HEADER
+#define elf_backend_write_core_note elf_x86_64_write_core_note
+#endif
#define elf_backend_reloc_type_class elf_x86_64_reloc_type_class
#define elf_backend_relocate_section elf_x86_64_relocate_section
#define elf_backend_size_dynamic_sections elf_x86_64_size_dynamic_sections
#define elf_backend_hash_symbol \
elf_x86_64_hash_symbol
-#undef elf_backend_post_process_headers
#define elf_backend_post_process_headers _bfd_elf_set_osabi
#include "elf64-target.h"
#undef elf_backend_object_p
#define elf_backend_object_p elf64_l1om_elf_object_p
-#undef elf_backend_post_process_headers
#undef elf_backend_static_tls_alignment
#undef elf_backend_want_plt_sym
#undef elf64_bed
#define elf64_bed elf64_l1om_fbsd_bed
-#undef elf_backend_post_process_headers
-#define elf_backend_post_process_headers _bfd_elf_set_osabi
+#include "elf64-target.h"
+
+/* Intel K1OM support. */
+
+static bfd_boolean
+elf64_k1om_elf_object_p (bfd *abfd)
+{
+ /* Set the right machine number for an K1OM elf64 file. */
+ bfd_default_set_arch_mach (abfd, bfd_arch_k1om, bfd_mach_k1om);
+ return TRUE;
+}
+
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf64_k1om_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf64-k1om"
+#undef ELF_ARCH
+#define ELF_ARCH bfd_arch_k1om
+
+#undef ELF_MACHINE_CODE
+#define ELF_MACHINE_CODE EM_K1OM
+
+#undef ELF_OSABI
+
+#undef elf64_bed
+#define elf64_bed elf64_k1om_bed
+
+#undef elf_backend_object_p
+#define elf_backend_object_p elf64_k1om_elf_object_p
+
+#undef elf_backend_static_tls_alignment
+
+#undef elf_backend_want_plt_sym
+#define elf_backend_want_plt_sym 0
+
+#include "elf64-target.h"
+
+/* FreeBSD K1OM support. */
+
+#undef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM bfd_elf64_k1om_freebsd_vec
+#undef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "elf64-k1om-freebsd"
+
+#undef ELF_OSABI
+#define ELF_OSABI ELFOSABI_FREEBSD
+
+#undef elf64_bed
+#define elf64_bed elf64_k1om_fbsd_bed
#include "elf64-target.h"
#undef ELF_OSABI
-#undef elf_backend_post_process_headers
-
#undef elf_backend_object_p
#define elf_backend_object_p \
elf32_x86_64_elf_object_p
projects / platform / upstream / binutils.git / blobdiff