#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/alpha.h"
#define ALPHAECOFF
#define NO_COFF_RELOCS
#define NO_COFF_SYMBOLS
#define NO_COFF_LINENOS
#include "coff/internal.h"
#include "coff/sym.h"
#include "coff/symconst.h"
#include "coff/ecoff.h"
#include "coff/alpha.h"
#include "aout/ar.h"
#include "libcoff.h"
#include "libecoff.h"
#define ECOFF_64
#include "ecoffswap.h"
#define OP_LDA 0x08
#define OP_LDAH 0x09
#define OP_LDQ 0x29
#define OP_BR 0x30
#define OP_BSR 0x34
#define INSN_LDA (OP_LDA << 26)
#define INSN_LDAH (OP_LDAH << 26)
#define INSN_LDQ (OP_LDQ << 26)
#define INSN_BR (OP_BR << 26)
#define INSN_ADDQ 0x40000400
#define INSN_RDUNIQ 0x0000009e
#define INSN_SUBQ 0x40000520
#define INSN_S4SUBQ 0x40000560
#define INSN_UNOP 0x2ffe0000
#define INSN_JSR 0x68004000
#define INSN_JMP 0x68000000
#define INSN_JSR_MASK 0xfc00c000
#define INSN_A(I,A) (I | (A << 21))
#define INSN_AB(I,A,B) (I | (A << 21) | (B << 16))
#define INSN_ABC(I,A,B,C) (I | (A << 21) | (B << 16) | C)
#define INSN_ABO(I,A,B,O) (I | (A << 21) | (B << 16) | ((O) & 0xffff))
#define INSN_AD(I,A,D) (I | (A << 21) | (((D) >> 2) & 0x1fffff))
#ifdef USE_SECUREPLT
bfd_boolean elf64_alpha_use_secureplt = TRUE;
#else
bfd_boolean elf64_alpha_use_secureplt = FALSE;
#endif
#define OLD_PLT_HEADER_SIZE 32
#define OLD_PLT_ENTRY_SIZE 12
#define NEW_PLT_HEADER_SIZE 36
#define NEW_PLT_ENTRY_SIZE 4
#define PLT_HEADER_SIZE \
(elf64_alpha_use_secureplt ? NEW_PLT_HEADER_SIZE : OLD_PLT_HEADER_SIZE)
#define PLT_ENTRY_SIZE \
(elf64_alpha_use_secureplt ? NEW_PLT_ENTRY_SIZE : OLD_PLT_ENTRY_SIZE)
#define MAX_GOT_SIZE (64*1024)
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so"
struct alpha_elf_link_hash_entry
{
struct elf_link_hash_entry root;
EXTR esym;
int flags;
#define ALPHA_ELF_LINK_HASH_LU_ADDR 0x01
#define ALPHA_ELF_LINK_HASH_LU_MEM 0x02
#define ALPHA_ELF_LINK_HASH_LU_BYTE 0x04
#define ALPHA_ELF_LINK_HASH_LU_JSR 0x08
#define ALPHA_ELF_LINK_HASH_LU_TLSGD 0x10
#define ALPHA_ELF_LINK_HASH_LU_TLSLDM 0x20
#define ALPHA_ELF_LINK_HASH_LU_JSRDIRECT 0x40
#define ALPHA_ELF_LINK_HASH_LU_PLT 0x38
#define ALPHA_ELF_LINK_HASH_TLS_IE 0x80
struct alpha_elf_got_entry
{
struct alpha_elf_got_entry *next;
bfd *gotobj;
bfd_vma addend;
int got_offset;
int plt_offset;
int use_count;
unsigned char reloc_type;
unsigned char flags;
unsigned char reloc_done;
unsigned char reloc_xlated;
} *got_entries;
struct alpha_elf_reloc_entry
{
struct alpha_elf_reloc_entry *next;
asection *srel;
unsigned int rtype;
unsigned int reltext : 1;
unsigned long count;
} *reloc_entries;
};
struct alpha_elf_link_hash_table
{
struct elf_link_hash_table root;
bfd *got_list;
};
#define alpha_elf_link_hash_lookup(table, string, create, copy, follow) \
((struct alpha_elf_link_hash_entry *) \
elf_link_hash_lookup (&(table)->root, (string), (create), \
(copy), (follow)))
#define alpha_elf_link_hash_traverse(table, func, info) \
(elf_link_hash_traverse \
(&(table)->root, \
(bfd_boolean (*) (struct elf_link_hash_entry *, PTR)) (func), \
(info)))
#define alpha_elf_hash_table(p) \
((struct alpha_elf_link_hash_table *) ((p)->hash))
#define alpha_elf_sym_hashes(abfd) \
((struct alpha_elf_link_hash_entry **)elf_sym_hashes(abfd))
static inline bfd_boolean
alpha_elf_dynamic_symbol_p (struct elf_link_hash_entry *h,
struct bfd_link_info *info)
{
return _bfd_elf_dynamic_symbol_p (h, info, 0);
}
static struct bfd_hash_entry *
elf64_alpha_link_hash_newfunc (struct bfd_hash_entry *entry,
struct bfd_hash_table *table,
const char *string)
{
struct alpha_elf_link_hash_entry *ret =
(struct alpha_elf_link_hash_entry *) entry;
if (ret == (struct alpha_elf_link_hash_entry *) NULL)
ret = ((struct alpha_elf_link_hash_entry *)
bfd_hash_allocate (table,
sizeof (struct alpha_elf_link_hash_entry)));
if (ret == (struct alpha_elf_link_hash_entry *) NULL)
return (struct bfd_hash_entry *) ret;
ret = ((struct alpha_elf_link_hash_entry *)
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
table, string));
if (ret != (struct alpha_elf_link_hash_entry *) NULL)
{
memset (&ret->esym, 0, sizeof (EXTR));
ret->esym.ifd = -2;
ret->flags = 0;
ret->got_entries = NULL;
ret->reloc_entries = NULL;
}
return (struct bfd_hash_entry *) ret;
}
static struct bfd_link_hash_table *
elf64_alpha_bfd_link_hash_table_create (bfd *abfd)
{
struct alpha_elf_link_hash_table *ret;
bfd_size_type amt = sizeof (struct alpha_elf_link_hash_table);
ret = (struct alpha_elf_link_hash_table *) bfd_zmalloc (amt);
if (ret == (struct alpha_elf_link_hash_table *) NULL)
return NULL;
if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
elf64_alpha_link_hash_newfunc))
{
free (ret);
return NULL;
}
return &ret->root.root;
}
struct alpha_elf_obj_tdata
{
struct elf_obj_tdata root;
struct alpha_elf_got_entry ** local_got_entries;
bfd *gotobj;
bfd *in_got_link_next;
bfd *got_link_next;
asection *got;
int total_got_size;
int local_got_size;
};
#define alpha_elf_tdata(abfd) \
((struct alpha_elf_obj_tdata *) (abfd)->tdata.any)
static bfd_boolean
elf64_alpha_mkobject (bfd *abfd)
{
bfd_size_type amt = sizeof (struct alpha_elf_obj_tdata);
abfd->tdata.any = bfd_zalloc (abfd, amt);
if (abfd->tdata.any == NULL)
return FALSE;
return TRUE;
}
static bfd_boolean
elf64_alpha_object_p (bfd *abfd)
{
return bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
}
static bfd_reloc_status_type
elf64_alpha_reloc_nil (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc,
asymbol *sym ATTRIBUTE_UNUSED,
PTR data ATTRIBUTE_UNUSED, asection *sec,
bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED)
{
if (output_bfd)
reloc->address += sec->output_offset;
return bfd_reloc_ok;
}
static bfd_reloc_status_type
elf64_alpha_reloc_bad (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc,
asymbol *sym ATTRIBUTE_UNUSED,
PTR data ATTRIBUTE_UNUSED, asection *sec,
bfd *output_bfd, char **error_message ATTRIBUTE_UNUSED)
{
if (output_bfd)
reloc->address += sec->output_offset;
return bfd_reloc_notsupported;
}
static bfd_reloc_status_type
elf64_alpha_do_reloc_gpdisp (bfd *abfd, bfd_vma gpdisp, bfd_byte *p_ldah,
bfd_byte *p_lda)
{
bfd_reloc_status_type ret = bfd_reloc_ok;
bfd_vma addend;
unsigned long i_ldah, i_lda;
i_ldah = bfd_get_32 (abfd, p_ldah);
i_lda = bfd_get_32 (abfd, p_lda);
if (((i_ldah >> 26) & 0x3f) != 0x09
|| ((i_lda >> 26) & 0x3f) != 0x08)
ret = bfd_reloc_dangerous;
addend = ((i_ldah & 0xffff) << 16) | (i_lda & 0xffff);
addend = (addend ^ 0x80008000) - 0x80008000;
gpdisp += addend;
if ((bfd_signed_vma) gpdisp < -(bfd_signed_vma) 0x80000000
|| (bfd_signed_vma) gpdisp >= (bfd_signed_vma) 0x7fff8000)
ret = bfd_reloc_overflow;
i_ldah = ((i_ldah & 0xffff0000)
| (((gpdisp >> 16) + ((gpdisp >> 15) & 1)) & 0xffff));
i_lda = (i_lda & 0xffff0000) | (gpdisp & 0xffff);
bfd_put_32 (abfd, (bfd_vma) i_ldah, p_ldah);
bfd_put_32 (abfd, (bfd_vma) i_lda, p_lda);
return ret;
}
static bfd_reloc_status_type
elf64_alpha_reloc_gpdisp (bfd *abfd, arelent *reloc_entry,
asymbol *sym ATTRIBUTE_UNUSED, PTR data,
asection *input_section, bfd *output_bfd,
char **err_msg)
{
bfd_reloc_status_type ret;
bfd_vma gp, relocation;
bfd_vma high_address;
bfd_byte *p_ldah, *p_lda;
if (output_bfd)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
high_address = bfd_get_section_limit (abfd, input_section);
if (reloc_entry->address > high_address
|| reloc_entry->address + reloc_entry->addend > high_address)
return bfd_reloc_outofrange;
gp = _bfd_get_gp_value (abfd);
relocation = (input_section->output_section->vma
+ input_section->output_offset
+ reloc_entry->address);
p_ldah = (bfd_byte *) data + reloc_entry->address;
p_lda = p_ldah + reloc_entry->addend;
ret = elf64_alpha_do_reloc_gpdisp (abfd, gp - relocation, p_ldah, p_lda);
if (ret == bfd_reloc_dangerous)
*err_msg = _("GPDISP relocation did not find ldah and lda instructions");
return ret;
}
#define MINUS_ONE (((bfd_vma)0) - 1)
#define SKIP_HOWTO(N) \
HOWTO(N, 0, 0, 0, 0, 0, 0, elf64_alpha_reloc_bad, 0, 0, 0, 0, 0)
static reloc_howto_type elf64_alpha_howto_table[] =
{
HOWTO (R_ALPHA_NONE,
0,
0,
8,
TRUE,
0,
complain_overflow_dont,
elf64_alpha_reloc_nil,
"NONE",
FALSE,
0,
0,
TRUE),
HOWTO (R_ALPHA_REFLONG,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
0,
"REFLONG",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ALPHA_REFQUAD,
0,
4,
64,
FALSE,
0,
complain_overflow_bitfield,
0,
"REFQUAD",
FALSE,
MINUS_ONE,
MINUS_ONE,
FALSE),
HOWTO (R_ALPHA_GPREL32,
0,
2,
32,
FALSE,
0,
complain_overflow_bitfield,
0,
"GPREL32",
FALSE,
0xffffffff,
0xffffffff,
FALSE),
HOWTO (R_ALPHA_LITERAL,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"ELF_LITERAL",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_LITUSE,
0,
1,
32,
FALSE,
0,
complain_overflow_dont,
elf64_alpha_reloc_nil,
"LITUSE",
FALSE,
0,
0,
FALSE),
HOWTO (R_ALPHA_GPDISP,
16,
2,
16,
FALSE,
0,
complain_overflow_dont,
elf64_alpha_reloc_gpdisp,
"GPDISP",
FALSE,
0xffff,
0xffff,
TRUE),
HOWTO (R_ALPHA_BRADDR,
2,
2,
21,
TRUE,
0,
complain_overflow_signed,
0,
"BRADDR",
FALSE,
0x1fffff,
0x1fffff,
TRUE),
HOWTO (R_ALPHA_HINT,
2,
1,
14,
TRUE,
0,
complain_overflow_dont,
0,
"HINT",
FALSE,
0x3fff,
0x3fff,
TRUE),
HOWTO (R_ALPHA_SREL16,
0,
1,
16,
TRUE,
0,
complain_overflow_signed,
0,
"SREL16",
FALSE,
0xffff,
0xffff,
TRUE),
HOWTO (R_ALPHA_SREL32,
0,
2,
32,
TRUE,
0,
complain_overflow_signed,
0,
"SREL32",
FALSE,
0xffffffff,
0xffffffff,
TRUE),
HOWTO (R_ALPHA_SREL64,
0,
4,
64,
TRUE,
0,
complain_overflow_signed,
0,
"SREL64",
FALSE,
MINUS_ONE,
MINUS_ONE,
TRUE),
SKIP_HOWTO (12),
SKIP_HOWTO (13),
SKIP_HOWTO (14),
SKIP_HOWTO (15),
SKIP_HOWTO (16),
HOWTO (R_ALPHA_GPRELHIGH,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"GPRELHIGH",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_GPRELLOW,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
0,
"GPRELLOW",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_GPREL16,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"GPREL16",
FALSE,
0xffff,
0xffff,
FALSE),
SKIP_HOWTO (20),
SKIP_HOWTO (21),
SKIP_HOWTO (22),
SKIP_HOWTO (23),
HOWTO (R_ALPHA_COPY,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"COPY",
FALSE,
0,
0,
TRUE),
HOWTO (R_ALPHA_GLOB_DAT,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"GLOB_DAT",
FALSE,
0,
0,
TRUE),
HOWTO (R_ALPHA_JMP_SLOT,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"JMP_SLOT",
FALSE,
0,
0,
TRUE),
HOWTO (R_ALPHA_RELATIVE,
0,
0,
0,
FALSE,
0,
complain_overflow_dont,
bfd_elf_generic_reloc,
"RELATIVE",
FALSE,
0,
0,
TRUE),
HOWTO (R_ALPHA_BRSGP,
2,
2,
21,
TRUE,
0,
complain_overflow_signed,
0,
"BRSGP",
FALSE,
0x1fffff,
0x1fffff,
TRUE),
HOWTO (R_ALPHA_TLSGD,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"TLSGD",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_TLSLDM,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"TLSLDM",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_DTPMOD64,
0,
4,
64,
FALSE,
0,
complain_overflow_bitfield,
0,
"DTPMOD64",
FALSE,
MINUS_ONE,
MINUS_ONE,
FALSE),
HOWTO (R_ALPHA_GOTDTPREL,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"GOTDTPREL",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_DTPREL64,
0,
4,
64,
FALSE,
0,
complain_overflow_bitfield,
0,
"DTPREL64",
FALSE,
MINUS_ONE,
MINUS_ONE,
FALSE),
HOWTO (R_ALPHA_DTPRELHI,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"DTPRELHI",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_DTPRELLO,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
0,
"DTPRELLO",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_DTPREL16,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"DTPREL16",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_GOTTPREL,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"GOTTPREL",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_TPREL64,
0,
4,
64,
FALSE,
0,
complain_overflow_bitfield,
0,
"TPREL64",
FALSE,
MINUS_ONE,
MINUS_ONE,
FALSE),
HOWTO (R_ALPHA_TPRELHI,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"TPRELHI",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_TPRELLO,
0,
1,
16,
FALSE,
0,
complain_overflow_dont,
0,
"TPRELLO",
FALSE,
0xffff,
0xffff,
FALSE),
HOWTO (R_ALPHA_TPREL16,
0,
1,
16,
FALSE,
0,
complain_overflow_signed,
0,
"TPREL16",
FALSE,
0xffff,
0xffff,
FALSE),
};
struct elf_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
int elf_reloc_val;
};
static const struct elf_reloc_map elf64_alpha_reloc_map[] =
{
{BFD_RELOC_NONE, R_ALPHA_NONE},
{BFD_RELOC_32, R_ALPHA_REFLONG},
{BFD_RELOC_64, R_ALPHA_REFQUAD},
{BFD_RELOC_CTOR, R_ALPHA_REFQUAD},
{BFD_RELOC_GPREL32, R_ALPHA_GPREL32},
{BFD_RELOC_ALPHA_ELF_LITERAL, R_ALPHA_LITERAL},
{BFD_RELOC_ALPHA_LITUSE, R_ALPHA_LITUSE},
{BFD_RELOC_ALPHA_GPDISP, R_ALPHA_GPDISP},
{BFD_RELOC_23_PCREL_S2, R_ALPHA_BRADDR},
{BFD_RELOC_ALPHA_HINT, R_ALPHA_HINT},
{BFD_RELOC_16_PCREL, R_ALPHA_SREL16},
{BFD_RELOC_32_PCREL, R_ALPHA_SREL32},
{BFD_RELOC_64_PCREL, R_ALPHA_SREL64},
{BFD_RELOC_ALPHA_GPREL_HI16, R_ALPHA_GPRELHIGH},
{BFD_RELOC_ALPHA_GPREL_LO16, R_ALPHA_GPRELLOW},
{BFD_RELOC_GPREL16, R_ALPHA_GPREL16},
{BFD_RELOC_ALPHA_BRSGP, R_ALPHA_BRSGP},
{BFD_RELOC_ALPHA_TLSGD, R_ALPHA_TLSGD},
{BFD_RELOC_ALPHA_TLSLDM, R_ALPHA_TLSLDM},
{BFD_RELOC_ALPHA_DTPMOD64, R_ALPHA_DTPMOD64},
{BFD_RELOC_ALPHA_GOTDTPREL16, R_ALPHA_GOTDTPREL},
{BFD_RELOC_ALPHA_DTPREL64, R_ALPHA_DTPREL64},
{BFD_RELOC_ALPHA_DTPREL_HI16, R_ALPHA_DTPRELHI},
{BFD_RELOC_ALPHA_DTPREL_LO16, R_ALPHA_DTPRELLO},
{BFD_RELOC_ALPHA_DTPREL16, R_ALPHA_DTPREL16},
{BFD_RELOC_ALPHA_GOTTPREL16, R_ALPHA_GOTTPREL},
{BFD_RELOC_ALPHA_TPREL64, R_ALPHA_TPREL64},
{BFD_RELOC_ALPHA_TPREL_HI16, R_ALPHA_TPRELHI},
{BFD_RELOC_ALPHA_TPREL_LO16, R_ALPHA_TPRELLO},
{BFD_RELOC_ALPHA_TPREL16, R_ALPHA_TPREL16},
};
static reloc_howto_type *
elf64_alpha_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
const struct elf_reloc_map *i, *e;
i = e = elf64_alpha_reloc_map;
e += sizeof (elf64_alpha_reloc_map) / sizeof (struct elf_reloc_map);
for (; i != e; ++i)
{
if (i->bfd_reloc_val == code)
return &elf64_alpha_howto_table[i->elf_reloc_val];
}
return 0;
}
static void
elf64_alpha_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
unsigned r_type = ELF64_R_TYPE(dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_ALPHA_max);
cache_ptr->howto = &elf64_alpha_howto_table[r_type];
}
#define alpha_got_entry_size(r_type) \
(r_type == R_ALPHA_TLSGD || r_type == R_ALPHA_TLSLDM ? 16 : 8)
#define alpha_get_dtprel_base(info) \
(elf_hash_table (info)->tls_sec->vma)
#define alpha_get_tprel_base(info) \
(elf_hash_table (info)->tls_sec->vma \
- align_power ((bfd_vma) 16, \
elf_hash_table (info)->tls_sec->alignment_power))
static bfd_boolean
elf64_alpha_section_from_shdr (bfd *abfd,
Elf_Internal_Shdr *hdr,
const char *name,
int shindex)
{
asection *newsect;
switch (hdr->sh_type)
{
case SHT_ALPHA_DEBUG:
if (strcmp (name, ".mdebug") != 0)
return FALSE;
break;
default:
return FALSE;
}
if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
return FALSE;
newsect = hdr->bfd_section;
if (hdr->sh_type == SHT_ALPHA_DEBUG)
{
if (! bfd_set_section_flags (abfd, newsect,
(bfd_get_section_flags (abfd, newsect)
| SEC_DEBUGGING)))
return FALSE;
}
return TRUE;
}
static bfd_boolean
elf64_alpha_section_flags (flagword *flags, const Elf_Internal_Shdr *hdr)
{
if (hdr->sh_flags & SHF_ALPHA_GPREL)
*flags |= SEC_SMALL_DATA;
return TRUE;
}
static bfd_boolean
elf64_alpha_fake_sections (bfd *abfd, Elf_Internal_Shdr *hdr, asection *sec)
{
register const char *name;
name = bfd_get_section_name (abfd, sec);
if (strcmp (name, ".mdebug") == 0)
{
hdr->sh_type = SHT_ALPHA_DEBUG;
if ((abfd->flags & DYNAMIC) != 0 )
hdr->sh_entsize = 0;
else
hdr->sh_entsize = 1;
}
else if ((sec->flags & SEC_SMALL_DATA)
|| strcmp (name, ".sdata") == 0
|| strcmp (name, ".sbss") == 0
|| strcmp (name, ".lit4") == 0
|| strcmp (name, ".lit8") == 0)
hdr->sh_flags |= SHF_ALPHA_GPREL;
return TRUE;
}
static bfd_boolean
elf64_alpha_add_symbol_hook (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))
{
asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
if (scomm == NULL)
{
scomm = bfd_make_section_with_flags (abfd, ".scommon",
(SEC_ALLOC
| SEC_IS_COMMON
| SEC_LINKER_CREATED));
if (scomm == NULL)
return FALSE;
}
*secp = scomm;
*valp = sym->st_size;
}
return TRUE;
}
static bfd_boolean
elf64_alpha_create_got_section (bfd *abfd,
struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
flagword flags;
asection *s;
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_LINKER_CREATED);
s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
if (s == NULL
|| !bfd_set_section_alignment (abfd, s, 3))
return FALSE;
alpha_elf_tdata (abfd)->got = s;
alpha_elf_tdata (abfd)->gotobj = abfd;
return TRUE;
}
static bfd_boolean
elf64_alpha_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
{
asection *s;
flagword flags;
struct elf_link_hash_entry *h;
struct bfd_link_hash_entry *bh;
flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_LINKER_CREATED
| (elf64_alpha_use_secureplt ? SEC_READONLY : 0));
s = bfd_make_section_anyway_with_flags (abfd, ".plt", flags);
if (s == NULL || ! bfd_set_section_alignment (abfd, s, 4))
return FALSE;
bh = NULL;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
(bfd_vma) 0, (const char *) NULL, FALSE,
get_elf_backend_data (abfd)->collect, &bh)))
return FALSE;
h = (struct elf_link_hash_entry *) bh;
h->def_regular = 1;
h->type = STT_OBJECT;
if (info->shared && ! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_LINKER_CREATED | SEC_READONLY);
s = bfd_make_section_anyway_with_flags (abfd, ".rela.plt", flags);
if (s == NULL || ! bfd_set_section_alignment (abfd, s, 3))
return FALSE;
if (elf64_alpha_use_secureplt)
{
flags = SEC_ALLOC | SEC_LINKER_CREATED;
s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
if (s == NULL || ! bfd_set_section_alignment (abfd, s, 3))
return FALSE;
}
if (alpha_elf_tdata(abfd)->gotobj == NULL)
{
if (!elf64_alpha_create_got_section (abfd, info))
return FALSE;
}
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_LINKER_CREATED | SEC_READONLY);
s = bfd_make_section_anyway_with_flags (abfd, ".rela.got", flags);
if (s == NULL
|| !bfd_set_section_alignment (abfd, s, 3))
return FALSE;
bh = NULL;
if (!(_bfd_generic_link_add_one_symbol
(info, abfd, "_GLOBAL_OFFSET_TABLE_", BSF_GLOBAL,
alpha_elf_tdata(abfd)->got, (bfd_vma) 0, (const char *) NULL,
FALSE, get_elf_backend_data (abfd)->collect, &bh)))
return FALSE;
h = (struct elf_link_hash_entry *) bh;
h->def_regular = 1;
h->type = STT_OBJECT;
if (info->shared
&& ! bfd_elf_link_record_dynamic_symbol (info, h))
return FALSE;
elf_hash_table (info)->hgot = h;
return TRUE;
}
static bfd_boolean
elf64_alpha_read_ecoff_info (bfd *abfd, asection *section,
struct ecoff_debug_info *debug)
{
HDRR *symhdr;
const struct ecoff_debug_swap *swap;
char *ext_hdr = NULL;
swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
memset (debug, 0, sizeof (*debug));
ext_hdr = (char *) bfd_malloc (swap->external_hdr_size);
if (ext_hdr == NULL && swap->external_hdr_size != 0)
goto error_return;
if (! bfd_get_section_contents (abfd, section, ext_hdr, (file_ptr) 0,
swap->external_hdr_size))
goto error_return;
symhdr = &debug->symbolic_header;
(*swap->swap_hdr_in) (abfd, ext_hdr, symhdr);
#define READ(ptr, offset, count, size, type) \
if (symhdr->count == 0) \
debug->ptr = NULL; \
else \
{ \
bfd_size_type amt = (bfd_size_type) size * symhdr->count; \
debug->ptr = (type) bfd_malloc (amt); \
if (debug->ptr == NULL) \
goto error_return; \
if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \
|| bfd_bread (debug->ptr, amt, abfd) != amt) \
goto error_return; \
}
READ (line, cbLineOffset, cbLine, sizeof (unsigned char), unsigned char *);
READ (external_dnr, cbDnOffset, idnMax, swap->external_dnr_size, PTR);
READ (external_pdr, cbPdOffset, ipdMax, swap->external_pdr_size, PTR);
READ (external_sym, cbSymOffset, isymMax, swap->external_sym_size, PTR);
READ (external_opt, cbOptOffset, ioptMax, swap->external_opt_size, PTR);
READ (external_aux, cbAuxOffset, iauxMax, sizeof (union aux_ext),
union aux_ext *);
READ (ss, cbSsOffset, issMax, sizeof (char), char *);
READ (ssext, cbSsExtOffset, issExtMax, sizeof (char), char *);
READ (external_fdr, cbFdOffset, ifdMax, swap->external_fdr_size, PTR);
READ (external_rfd, cbRfdOffset, crfd, swap->external_rfd_size, PTR);
READ (external_ext, cbExtOffset, iextMax, swap->external_ext_size, PTR);
#undef READ
debug->fdr = NULL;
return TRUE;
error_return:
if (ext_hdr != NULL)
free (ext_hdr);
if (debug->line != NULL)
free (debug->line);
if (debug->external_dnr != NULL)
free (debug->external_dnr);
if (debug->external_pdr != NULL)
free (debug->external_pdr);
if (debug->external_sym != NULL)
free (debug->external_sym);
if (debug->external_opt != NULL)
free (debug->external_opt);
if (debug->external_aux != NULL)
free (debug->external_aux);
if (debug->ss != NULL)
free (debug->ss);
if (debug->ssext != NULL)
free (debug->ssext);
if (debug->external_fdr != NULL)
free (debug->external_fdr);
if (debug->external_rfd != NULL)
free (debug->external_rfd);
if (debug->external_ext != NULL)
free (debug->external_ext);
return FALSE;
}
static bfd_boolean
elf64_alpha_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
{
return name[0] == '$';
}
struct mips_elf_find_line
{
struct ecoff_debug_info d;
struct ecoff_find_line i;
};
static bfd_boolean
elf64_alpha_find_nearest_line (bfd *abfd, asection *section, asymbol **symbols,
bfd_vma offset, const char **filename_ptr,
const char **functionname_ptr,
unsigned int *line_ptr)
{
asection *msec;
if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset,
filename_ptr, functionname_ptr,
line_ptr, 0,
&elf_tdata (abfd)->dwarf2_find_line_info))
return TRUE;
msec = bfd_get_section_by_name (abfd, ".mdebug");
if (msec != NULL)
{
flagword origflags;
struct mips_elf_find_line *fi;
const struct ecoff_debug_swap * const swap =
get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
origflags = msec->flags;
if (elf_section_data (msec)->this_hdr.sh_type != SHT_NOBITS)
msec->flags |= SEC_HAS_CONTENTS;
fi = elf_tdata (abfd)->find_line_info;
if (fi == NULL)
{
bfd_size_type external_fdr_size;
char *fraw_src;
char *fraw_end;
struct fdr *fdr_ptr;
bfd_size_type amt = sizeof (struct mips_elf_find_line);
fi = (struct mips_elf_find_line *) bfd_zalloc (abfd, amt);
if (fi == NULL)
{
msec->flags = origflags;
return FALSE;
}
if (!elf64_alpha_read_ecoff_info (abfd, msec, &fi->d))
{
msec->flags = origflags;
return FALSE;
}
amt = fi->d.symbolic_header.ifdMax * sizeof (struct fdr);
fi->d.fdr = (struct fdr *) bfd_alloc (abfd, amt);
if (fi->d.fdr == NULL)
{
msec->flags = origflags;
return FALSE;
}
external_fdr_size = swap->external_fdr_size;
fdr_ptr = fi->d.fdr;
fraw_src = (char *) fi->d.external_fdr;
fraw_end = (fraw_src
+ fi->d.symbolic_header.ifdMax * external_fdr_size);
for (; fraw_src < fraw_end; fraw_src += external_fdr_size, fdr_ptr++)
(*swap->swap_fdr_in) (abfd, (PTR) fraw_src, fdr_ptr);
elf_tdata (abfd)->find_line_info = fi;
}
if (_bfd_ecoff_locate_line (abfd, section, offset, &fi->d, swap,
&fi->i, filename_ptr, functionname_ptr,
line_ptr))
{
msec->flags = origflags;
return TRUE;
}
msec->flags = origflags;
}
return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
filename_ptr, functionname_ptr,
line_ptr);
}
struct extsym_info
{
bfd *abfd;
struct bfd_link_info *info;
struct ecoff_debug_info *debug;
const struct ecoff_debug_swap *swap;
bfd_boolean failed;
};
static bfd_boolean
elf64_alpha_output_extsym (struct alpha_elf_link_hash_entry *h, PTR data)
{
struct extsym_info *einfo = (struct extsym_info *) data;
bfd_boolean strip;
asection *sec, *output_section;
if (h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
if (h->root.indx == -2)
strip = FALSE;
else if ((h->root.def_dynamic
|| h->root.ref_dynamic
|| h->root.root.type == bfd_link_hash_new)
&& !h->root.def_regular
&& !h->root.ref_regular)
strip = TRUE;
else if (einfo->info->strip == strip_all
|| (einfo->info->strip == strip_some
&& bfd_hash_lookup (einfo->info->keep_hash,
h->root.root.root.string,
FALSE, FALSE) == NULL))
strip = TRUE;
else
strip = FALSE;
if (strip)
return TRUE;
if (h->esym.ifd == -2)
{
h->esym.jmptbl = 0;
h->esym.cobol_main = 0;
h->esym.weakext = 0;
h->esym.reserved = 0;
h->esym.ifd = ifdNil;
h->esym.asym.value = 0;
h->esym.asym.st = stGlobal;
if (h->root.root.type != bfd_link_hash_defined
&& h->root.root.type != bfd_link_hash_defweak)
h->esym.asym.sc = scAbs;
else
{
const char *name;
sec = h->root.root.u.def.section;
output_section = sec->output_section;
if (output_section == NULL)
h->esym.asym.sc = scUndefined;
else
{
name = bfd_section_name (output_section->owner, output_section);
if (strcmp (name, ".text") == 0)
h->esym.asym.sc = scText;
else if (strcmp (name, ".data") == 0)
h->esym.asym.sc = scData;
else if (strcmp (name, ".sdata") == 0)
h->esym.asym.sc = scSData;
else if (strcmp (name, ".rodata") == 0
|| strcmp (name, ".rdata") == 0)
h->esym.asym.sc = scRData;
else if (strcmp (name, ".bss") == 0)
h->esym.asym.sc = scBss;
else if (strcmp (name, ".sbss") == 0)
h->esym.asym.sc = scSBss;
else if (strcmp (name, ".init") == 0)
h->esym.asym.sc = scInit;
else if (strcmp (name, ".fini") == 0)
h->esym.asym.sc = scFini;
else
h->esym.asym.sc = scAbs;
}
}
h->esym.asym.reserved = 0;
h->esym.asym.index = indexNil;
}
if (h->root.root.type == bfd_link_hash_common)
h->esym.asym.value = h->root.root.u.c.size;
else if (h->root.root.type == bfd_link_hash_defined
|| h->root.root.type == bfd_link_hash_defweak)
{
if (h->esym.asym.sc == scCommon)
h->esym.asym.sc = scBss;
else if (h->esym.asym.sc == scSCommon)
h->esym.asym.sc = scSBss;
sec = h->root.root.u.def.section;
output_section = sec->output_section;
if (output_section != NULL)
h->esym.asym.value = (h->root.root.u.def.value
+ sec->output_offset
+ output_section->vma);
else
h->esym.asym.value = 0;
}
if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap,
h->root.root.root.string,
&h->esym))
{
einfo->failed = TRUE;
return FALSE;
}
return TRUE;
}
static struct alpha_elf_got_entry *
get_got_entry (bfd *abfd, struct alpha_elf_link_hash_entry *h,
unsigned long r_type, unsigned long r_symndx,
bfd_vma r_addend)
{
struct alpha_elf_got_entry *gotent;
struct alpha_elf_got_entry **slot;
if (h)
slot = &h->got_entries;
else
{
struct alpha_elf_got_entry **local_got_entries;
local_got_entries = alpha_elf_tdata(abfd)->local_got_entries;
if (!local_got_entries)
{
bfd_size_type size;
Elf_Internal_Shdr *symtab_hdr;
symtab_hdr = &elf_tdata(abfd)->symtab_hdr;
size = symtab_hdr->sh_info;
size *= sizeof (struct alpha_elf_got_entry *);
local_got_entries
= (struct alpha_elf_got_entry **) bfd_zalloc (abfd, size);
if (!local_got_entries)
return NULL;
alpha_elf_tdata (abfd)->local_got_entries = local_got_entries;
}
slot = &local_got_entries[r_symndx];
}
for (gotent = *slot; gotent ; gotent = gotent->next)
if (gotent->gotobj == abfd
&& gotent->reloc_type == r_type
&& gotent->addend == r_addend)
break;
if (!gotent)
{
int entry_size;
bfd_size_type amt;
amt = sizeof (struct alpha_elf_got_entry);
gotent = (struct alpha_elf_got_entry *) bfd_alloc (abfd, amt);
if (!gotent)
return NULL;
gotent->gotobj = abfd;
gotent->addend = r_addend;
gotent->got_offset = -1;
gotent->plt_offset = -1;
gotent->use_count = 1;
gotent->reloc_type = r_type;
gotent->reloc_done = 0;
gotent->reloc_xlated = 0;
gotent->next = *slot;
*slot = gotent;
entry_size = alpha_got_entry_size (r_type);
alpha_elf_tdata (abfd)->total_got_size += entry_size;
if (!h)
alpha_elf_tdata(abfd)->local_got_size += entry_size;
}
else
gotent->use_count += 1;
return gotent;
}
static bfd_boolean
elf64_alpha_want_plt (struct alpha_elf_link_hash_entry *ah)
{
return ((ah->root.type == STT_FUNC
|| ah->root.root.type == bfd_link_hash_undefweak
|| ah->root.root.type == bfd_link_hash_undefined)
&& (ah->flags & ALPHA_ELF_LINK_HASH_LU_PLT) != 0
&& (ah->flags & ~ALPHA_ELF_LINK_HASH_LU_PLT) == 0);
}
static bfd_boolean
elf64_alpha_check_relocs (bfd *abfd, struct bfd_link_info *info,
asection *sec, const Elf_Internal_Rela *relocs)
{
bfd *dynobj;
asection *sreloc;
const char *rel_sec_name;
Elf_Internal_Shdr *symtab_hdr;
struct alpha_elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel, *relend;
bfd_size_type amt;
if (info->relocatable)
return TRUE;
if ((sec->flags & SEC_ALLOC) == 0)
return TRUE;
dynobj = elf_hash_table(info)->dynobj;
if (dynobj == NULL)
elf_hash_table(info)->dynobj = dynobj = abfd;
sreloc = NULL;
rel_sec_name = NULL;
symtab_hdr = &elf_tdata(abfd)->symtab_hdr;
sym_hashes = alpha_elf_sym_hashes(abfd);
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; ++rel)
{
enum {
NEED_GOT = 1,
NEED_GOT_ENTRY = 2,
NEED_DYNREL = 4
};
unsigned long r_symndx, r_type;
struct alpha_elf_link_hash_entry *h;
unsigned int gotent_flags;
bfd_boolean maybe_dynamic;
unsigned int need;
bfd_vma addend;
r_symndx = ELF64_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
while (h->root.root.type == bfd_link_hash_indirect
|| h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
h->root.ref_regular = 1;
}
maybe_dynamic = FALSE;
if (h && ((info->shared
&& (!info->symbolic
|| info->unresolved_syms_in_shared_libs == RM_IGNORE))
|| !h->root.def_regular
|| h->root.root.type == bfd_link_hash_defweak))
maybe_dynamic = TRUE;
need = 0;
gotent_flags = 0;
r_type = ELF64_R_TYPE (rel->r_info);
addend = rel->r_addend;
switch (r_type)
{
case R_ALPHA_LITERAL:
need = NEED_GOT | NEED_GOT_ENTRY;
while (++rel < relend && ELF64_R_TYPE (rel->r_info) == R_ALPHA_LITUSE)
if (rel->r_addend >= 1 && rel->r_addend <= 6)
gotent_flags |= 1 << rel->r_addend;
--rel;
if (gotent_flags == 0)
gotent_flags = ALPHA_ELF_LINK_HASH_LU_ADDR;
break;
case R_ALPHA_GPDISP:
case R_ALPHA_GPREL16:
case R_ALPHA_GPREL32:
case R_ALPHA_GPRELHIGH:
case R_ALPHA_GPRELLOW:
case R_ALPHA_BRSGP:
need = NEED_GOT;
break;
case R_ALPHA_REFLONG:
case R_ALPHA_REFQUAD:
if (info->shared || maybe_dynamic)
need = NEED_DYNREL;
break;
case R_ALPHA_TLSLDM:
r_symndx = 0;
h = 0;
maybe_dynamic = FALSE;
case R_ALPHA_TLSGD:
case R_ALPHA_GOTDTPREL:
need = NEED_GOT | NEED_GOT_ENTRY;
break;
case R_ALPHA_GOTTPREL:
need = NEED_GOT | NEED_GOT_ENTRY;
gotent_flags = ALPHA_ELF_LINK_HASH_TLS_IE;
if (info->shared)
info->flags |= DF_STATIC_TLS;
break;
case R_ALPHA_TPREL64:
if (info->shared || maybe_dynamic)
need = NEED_DYNREL;
if (info->shared)
info->flags |= DF_STATIC_TLS;
break;
}
if (need & NEED_GOT)
{
if (alpha_elf_tdata(abfd)->gotobj == NULL)
{
if (!elf64_alpha_create_got_section (abfd, info))
return FALSE;
}
}
if (need & NEED_GOT_ENTRY)
{
struct alpha_elf_got_entry *gotent;
gotent = get_got_entry (abfd, h, r_type, r_symndx, addend);
if (!gotent)
return FALSE;
if (gotent_flags)
{
gotent->flags |= gotent_flags;
if (h)
{
gotent_flags |= h->flags;
h->flags = gotent_flags;
h->root.needs_plt
= (maybe_dynamic && elf64_alpha_want_plt (h));
}
}
}
if (need & NEED_DYNREL)
{
if (rel_sec_name == NULL)
{
rel_sec_name = (bfd_elf_string_from_elf_section
(abfd, elf_elfheader(abfd)->e_shstrndx,
elf_section_data(sec)->rel_hdr.sh_name));
if (rel_sec_name == NULL)
return FALSE;
BFD_ASSERT (strncmp (rel_sec_name, ".rela", 5) == 0
&& strcmp (bfd_get_section_name (abfd, sec),
rel_sec_name+5) == 0);
}
if (sreloc == NULL)
{
sreloc = bfd_get_section_by_name (dynobj, rel_sec_name);
if (sreloc == NULL)
{
flagword flags;
flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_LINKER_CREATED | SEC_READONLY);
if (sec->flags & SEC_ALLOC)
flags |= SEC_ALLOC | SEC_LOAD;
sreloc = bfd_make_section_with_flags (dynobj,
rel_sec_name,
flags);
if (sreloc == NULL
|| !bfd_set_section_alignment (dynobj, sreloc, 3))
return FALSE;
}
}
if (h)
{
struct alpha_elf_reloc_entry *rent;
for (rent = h->reloc_entries; rent; rent = rent->next)
if (rent->rtype == r_type && rent->srel == sreloc)
break;
if (!rent)
{
amt = sizeof (struct alpha_elf_reloc_entry);
rent = (struct alpha_elf_reloc_entry *) bfd_alloc (abfd, amt);
if (!rent)
return FALSE;
rent->srel = sreloc;
rent->rtype = r_type;
rent->count = 1;
rent->reltext = (sec->flags & SEC_READONLY) != 0;
rent->next = h->reloc_entries;
h->reloc_entries = rent;
}
else
rent->count++;
}
else if (info->shared)
{
sreloc->size += sizeof (Elf64_External_Rela);
if (sec->flags & SEC_READONLY)
info->flags |= DF_TEXTREL;
}
}
}
return TRUE;
}
static bfd_boolean
elf64_alpha_adjust_dynamic_symbol (struct bfd_link_info *info,
struct elf_link_hash_entry *h)
{
bfd *dynobj;
asection *s;
struct alpha_elf_link_hash_entry *ah;
dynobj = elf_hash_table(info)->dynobj;
ah = (struct alpha_elf_link_hash_entry *)h;
if (alpha_elf_dynamic_symbol_p (h, info) && elf64_alpha_want_plt (ah))
{
h->needs_plt = TRUE;
s = bfd_get_section_by_name(dynobj, ".plt");
if (!s && !elf64_alpha_create_dynamic_sections (dynobj, info))
return FALSE;
return TRUE;
}
else
h->needs_plt = FALSE;
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;
}
return TRUE;
}
static bfd_boolean
elf64_alpha_merge_ind_symbols (struct alpha_elf_link_hash_entry *hi,
PTR dummy ATTRIBUTE_UNUSED)
{
struct alpha_elf_link_hash_entry *hs;
if (hi->root.root.type != bfd_link_hash_indirect)
return TRUE;
hs = hi;
do {
hs = (struct alpha_elf_link_hash_entry *)hs->root.root.u.i.link;
} while (hs->root.root.type == bfd_link_hash_indirect);
hs->flags |= hi->flags;
if (hs->got_entries == NULL)
hs->got_entries = hi->got_entries;
else
{
struct alpha_elf_got_entry *gi, *gs, *gin, *gsh;
gsh = hs->got_entries;
for (gi = hi->got_entries; gi ; gi = gin)
{
gin = gi->next;
for (gs = gsh; gs ; gs = gs->next)
if (gi->gotobj == gs->gotobj
&& gi->reloc_type == gs->reloc_type
&& gi->addend == gs->addend)
{
gi->use_count += gs->use_count;
goto got_found;
}
gi->next = hs->got_entries;
hs->got_entries = gi;
got_found:;
}
}
hi->got_entries = NULL;
if (hs->reloc_entries == NULL)
hs->reloc_entries = hi->reloc_entries;
else
{
struct alpha_elf_reloc_entry *ri, *rs, *rin, *rsh;
rsh = hs->reloc_entries;
for (ri = hi->reloc_entries; ri ; ri = rin)
{
rin = ri->next;
for (rs = rsh; rs ; rs = rs->next)
if (ri->rtype == rs->rtype && ri->srel == rs->srel)
{
rs->count += ri->count;
goto found_reloc;
}
ri->next = hs->reloc_entries;
hs->reloc_entries = ri;
found_reloc:;
}
}
hi->reloc_entries = NULL;
return TRUE;
}
static bfd_boolean
elf64_alpha_can_merge_gots (bfd *a, bfd *b)
{
int total = alpha_elf_tdata (a)->total_got_size;
bfd *bsub;
if (total + alpha_elf_tdata (b)->total_got_size <= MAX_GOT_SIZE)
return TRUE;
if ((total += alpha_elf_tdata (b)->local_got_size) > MAX_GOT_SIZE)
return FALSE;
for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next)
{
struct alpha_elf_link_hash_entry **hashes = alpha_elf_sym_hashes (bsub);
Elf_Internal_Shdr *symtab_hdr = &elf_tdata (bsub)->symtab_hdr;
int i, n;
n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info;
for (i = 0; i < n; ++i)
{
struct alpha_elf_got_entry *ae, *be;
struct alpha_elf_link_hash_entry *h;
h = hashes[i];
while (h->root.root.type == bfd_link_hash_indirect
|| h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
for (be = h->got_entries; be ; be = be->next)
{
if (be->use_count == 0)
continue;
if (be->gotobj != b)
continue;
for (ae = h->got_entries; ae ; ae = ae->next)
if (ae->gotobj == a
&& ae->reloc_type == be->reloc_type
&& ae->addend == be->addend)
goto global_found;
total += alpha_got_entry_size (be->reloc_type);
if (total > MAX_GOT_SIZE)
return FALSE;
global_found:;
}
}
}
return TRUE;
}
static void
elf64_alpha_merge_gots (bfd *a, bfd *b)
{
int total = alpha_elf_tdata (a)->total_got_size;
bfd *bsub;
{
int e = alpha_elf_tdata (b)->local_got_size;
total += e;
alpha_elf_tdata (a)->local_got_size += e;
}
for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next)
{
struct alpha_elf_got_entry **local_got_entries;
struct alpha_elf_link_hash_entry **hashes;
Elf_Internal_Shdr *symtab_hdr;
int i, n;
local_got_entries = alpha_elf_tdata (bsub)->local_got_entries;
if (local_got_entries)
{
n = elf_tdata (bsub)->symtab_hdr.sh_info;
for (i = 0; i < n; ++i)
{
struct alpha_elf_got_entry *ent;
for (ent = local_got_entries[i]; ent; ent = ent->next)
ent->gotobj = a;
}
}
hashes = alpha_elf_sym_hashes (bsub);
symtab_hdr = &elf_tdata (bsub)->symtab_hdr;
n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info;
for (i = 0; i < n; ++i)
{
struct alpha_elf_got_entry *ae, *be, **pbe, **start;
struct alpha_elf_link_hash_entry *h;
h = hashes[i];
while (h->root.root.type == bfd_link_hash_indirect
|| h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
pbe = start = &h->got_entries;
while ((be = *pbe) != NULL)
{
if (be->use_count == 0)
{
*pbe = be->next;
memset (be, 0xa5, sizeof (*be));
goto kill;
}
if (be->gotobj != b)
goto next;
for (ae = *start; ae ; ae = ae->next)
if (ae->gotobj == a
&& ae->reloc_type == be->reloc_type
&& ae->addend == be->addend)
{
ae->flags |= be->flags;
ae->use_count += be->use_count;
*pbe = be->next;
memset (be, 0xa5, sizeof (*be));
goto kill;
}
be->gotobj = a;
total += alpha_got_entry_size (be->reloc_type);
next:;
pbe = &be->next;
kill:;
}
}
alpha_elf_tdata (bsub)->gotobj = a;
}
alpha_elf_tdata (a)->total_got_size = total;
{
bfd *next;
bsub = a;
while ((next = alpha_elf_tdata (bsub)->in_got_link_next) != NULL)
bsub = next;
alpha_elf_tdata (bsub)->in_got_link_next = b;
}
}
static bfd_boolean
elf64_alpha_calc_got_offsets_for_symbol (struct alpha_elf_link_hash_entry *h,
PTR arg ATTRIBUTE_UNUSED)
{
struct alpha_elf_got_entry *gotent;
if (h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
for (gotent = h->got_entries; gotent; gotent = gotent->next)
if (gotent->use_count > 0)
{
struct alpha_elf_obj_tdata *td;
bfd_size_type *plge;
td = alpha_elf_tdata (gotent->gotobj);
plge = &td->got->size;
gotent->got_offset = *plge;
*plge += alpha_got_entry_size (gotent->reloc_type);
}
return TRUE;
}
static void
elf64_alpha_calc_got_offsets (struct bfd_link_info *info)
{
bfd *i, *got_list = alpha_elf_hash_table(info)->got_list;
for (i = got_list; i ; i = alpha_elf_tdata(i)->got_link_next)
alpha_elf_tdata(i)->got->size = 0;
alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
elf64_alpha_calc_got_offsets_for_symbol,
NULL);
for (i = got_list; i ; i = alpha_elf_tdata(i)->got_link_next)
{
bfd_size_type got_offset = alpha_elf_tdata(i)->got->size;
bfd *j;
for (j = i; j ; j = alpha_elf_tdata(j)->in_got_link_next)
{
struct alpha_elf_got_entry **local_got_entries, *gotent;
int k, n;
local_got_entries = alpha_elf_tdata(j)->local_got_entries;
if (!local_got_entries)
continue;
for (k = 0, n = elf_tdata(j)->symtab_hdr.sh_info; k < n; ++k)
for (gotent = local_got_entries[k]; gotent; gotent = gotent->next)
if (gotent->use_count > 0)
{
gotent->got_offset = got_offset;
got_offset += alpha_got_entry_size (gotent->reloc_type);
}
}
alpha_elf_tdata(i)->got->size = got_offset;
}
}
static bfd_boolean
elf64_alpha_size_got_sections (struct bfd_link_info *info)
{
bfd *i, *got_list, *cur_got_obj = NULL;
int something_changed = 0;
got_list = alpha_elf_hash_table (info)->got_list;
if (got_list == NULL)
{
for (i = info->input_bfds; i ; i = i->link_next)
{
bfd *this_got = alpha_elf_tdata (i)->gotobj;
if (this_got == NULL)
continue;
BFD_ASSERT (this_got == i);
if (alpha_elf_tdata (this_got)->total_got_size > MAX_GOT_SIZE)
{
(*_bfd_error_handler)
(_("%B: .got subsegment exceeds 64K (size %d)"),
i, alpha_elf_tdata (this_got)->total_got_size);
return FALSE;
}
if (got_list == NULL)
got_list = this_got;
else
alpha_elf_tdata(cur_got_obj)->got_link_next = this_got;
cur_got_obj = this_got;
}
if (got_list == NULL)
return TRUE;
alpha_elf_hash_table (info)->got_list = got_list;
something_changed = 1;
}
cur_got_obj = got_list;
i = alpha_elf_tdata(cur_got_obj)->got_link_next;
while (i != NULL)
{
if (elf64_alpha_can_merge_gots (cur_got_obj, i))
{
elf64_alpha_merge_gots (cur_got_obj, i);
alpha_elf_tdata(i)->got->size = 0;
i = alpha_elf_tdata(i)->got_link_next;
alpha_elf_tdata(cur_got_obj)->got_link_next = i;
something_changed = 1;
}
else
{
cur_got_obj = i;
i = alpha_elf_tdata(i)->got_link_next;
}
}
if (1 || something_changed)
elf64_alpha_calc_got_offsets (info);
return TRUE;
}
static bfd_boolean
elf64_alpha_size_plt_section_1 (struct alpha_elf_link_hash_entry *h, PTR data)
{
asection *splt = (asection *) data;
struct alpha_elf_got_entry *gotent;
bfd_boolean saw_one = FALSE;
if (!h->root.needs_plt)
return TRUE;
for (gotent = h->got_entries; gotent ; gotent = gotent->next)
if (gotent->reloc_type == R_ALPHA_LITERAL
&& gotent->use_count > 0)
{
if (splt->size == 0)
splt->size = PLT_HEADER_SIZE;
gotent->plt_offset = splt->size;
splt->size += PLT_ENTRY_SIZE;
saw_one = TRUE;
}
if (!saw_one)
h->root.needs_plt = FALSE;
return TRUE;
}
static bfd_boolean
elf64_alpha_size_plt_section (struct bfd_link_info *info)
{
asection *splt, *spltrel, *sgotplt;
unsigned long entries;
bfd *dynobj;
dynobj = elf_hash_table(info)->dynobj;
splt = bfd_get_section_by_name (dynobj, ".plt");
if (splt == NULL)
return TRUE;
splt->size = 0;
alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
elf64_alpha_size_plt_section_1, splt);
spltrel = bfd_get_section_by_name (dynobj, ".rela.plt");
if (splt->size)
{
if (elf64_alpha_use_secureplt)
entries = (splt->size - NEW_PLT_HEADER_SIZE) / NEW_PLT_ENTRY_SIZE;
else
entries = (splt->size - OLD_PLT_HEADER_SIZE) / OLD_PLT_ENTRY_SIZE;
}
else
entries = 0;
spltrel->size = entries * sizeof (Elf64_External_Rela);
if (elf64_alpha_use_secureplt)
{
sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
sgotplt->size = entries ? 16 : 0;
}
return TRUE;
}
static bfd_boolean
elf64_alpha_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info)
{
bfd *i;
if (info->relocatable)
return TRUE;
alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
elf64_alpha_merge_ind_symbols,
NULL);
if (!elf64_alpha_size_got_sections (info))
return FALSE;
i = alpha_elf_hash_table (info)->got_list;
for ( ; i ; i = alpha_elf_tdata(i)->got_link_next)
{
asection *s = alpha_elf_tdata(i)->got;
if (s->size > 0)
{
s->contents = (bfd_byte *) bfd_zalloc (i, s->size);
if (s->contents == NULL)
return FALSE;
}
}
return TRUE;
}
static int
alpha_dynamic_entries_for_reloc (int r_type, int dynamic, int shared)
{
switch (r_type)
{
case R_ALPHA_TLSGD:
return (dynamic ? 2 : shared ? 1 : 0);
case R_ALPHA_TLSLDM:
return shared;
case R_ALPHA_LITERAL:
case R_ALPHA_GOTTPREL:
return dynamic || shared;
case R_ALPHA_GOTDTPREL:
return dynamic;
case R_ALPHA_REFLONG:
case R_ALPHA_REFQUAD:
case R_ALPHA_TPREL64:
return dynamic || shared;
default:
return 0;
}
}
static bfd_boolean
elf64_alpha_calc_dynrel_sizes (struct alpha_elf_link_hash_entry *h,
struct bfd_link_info *info)
{
bfd_boolean dynamic;
struct alpha_elf_reloc_entry *relent;
unsigned long entries;
if (h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
if (!h->root.def_regular
&& h->root.ref_regular
&& !h->root.def_dynamic
&& (h->root.root.type == bfd_link_hash_defined
|| h->root.root.type == bfd_link_hash_defweak)
&& !(h->root.root.u.def.section->owner->flags & DYNAMIC))
h->root.def_regular = 1;
dynamic = alpha_elf_dynamic_symbol_p (&h->root, info);
if (h->root.root.type == bfd_link_hash_undefweak && !dynamic)
return TRUE;
for (relent = h->reloc_entries; relent; relent = relent->next)
{
entries = alpha_dynamic_entries_for_reloc (relent->rtype, dynamic,
info->shared);
if (entries)
{
relent->srel->size +=
entries * sizeof (Elf64_External_Rela) * relent->count;
if (relent->reltext)
info->flags |= DT_TEXTREL;
}
}
return TRUE;
}
static bfd_boolean
elf64_alpha_size_rela_got_1 (struct alpha_elf_link_hash_entry *h,
struct bfd_link_info *info)
{
bfd_boolean dynamic;
struct alpha_elf_got_entry *gotent;
unsigned long entries;
if (h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link;
if (h->root.needs_plt)
return TRUE;
dynamic = alpha_elf_dynamic_symbol_p (&h->root, info);
if (h->root.root.type == bfd_link_hash_undefweak && !dynamic)
return TRUE;
entries = 0;
for (gotent = h->got_entries; gotent ; gotent = gotent->next)
if (gotent->use_count > 0)
entries += alpha_dynamic_entries_for_reloc (gotent->reloc_type,
dynamic, info->shared);
if (entries > 0)
{
bfd *dynobj = elf_hash_table(info)->dynobj;
asection *srel = bfd_get_section_by_name (dynobj, ".rela.got");
BFD_ASSERT (srel != NULL);
srel->size += sizeof (Elf64_External_Rela) * entries;
}
return TRUE;
}
static bfd_boolean
elf64_alpha_size_rela_got_section (struct bfd_link_info *info)
{
unsigned long entries;
bfd *i, *dynobj;
asection *srel;
entries = 0;
for (i = alpha_elf_hash_table(info)->got_list;
i ; i = alpha_elf_tdata(i)->got_link_next)
{
bfd *j;
for (j = i; j ; j = alpha_elf_tdata(j)->in_got_link_next)
{
struct alpha_elf_got_entry **local_got_entries, *gotent;
int k, n;
local_got_entries = alpha_elf_tdata(j)->local_got_entries;
if (!local_got_entries)
continue;
for (k = 0, n = elf_tdata(j)->symtab_hdr.sh_info; k < n; ++k)
for (gotent = local_got_entries[k];
gotent ; gotent = gotent->next)
if (gotent->use_count > 0)
entries += (alpha_dynamic_entries_for_reloc
(gotent->reloc_type, 0, info->shared));
}
}
dynobj = elf_hash_table(info)->dynobj;
srel = bfd_get_section_by_name (dynobj, ".rela.got");
if (!srel)
{
BFD_ASSERT (entries == 0);
return TRUE;
}
srel->size = sizeof (Elf64_External_Rela) * entries;
alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
elf64_alpha_size_rela_got_1, info);
return TRUE;
}
static bfd_boolean
elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info)
{
bfd *dynobj;
asection *s;
bfd_boolean relplt;
dynobj = elf_hash_table(info)->dynobj;
BFD_ASSERT(dynobj != NULL);
if (elf_hash_table (info)->dynamic_sections_created)
{
if (info->executable)
{
s = bfd_get_section_by_name (dynobj, ".interp");
BFD_ASSERT (s != NULL);
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
}
alpha_elf_link_hash_traverse (alpha_elf_hash_table (info),
elf64_alpha_calc_dynrel_sizes, info);
elf64_alpha_size_rela_got_section (info);
elf64_alpha_size_plt_section (info);
}
relplt = FALSE;
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char *name;
if (!(s->flags & SEC_LINKER_CREATED))
continue;
name = bfd_get_section_name (dynobj, s);
if (strncmp (name, ".rela", 5) == 0)
{
if (s->size != 0)
{
if (strcmp (name, ".rela.plt") == 0)
relplt = TRUE;
s->reloc_count = 0;
}
}
else if (strncmp (name, ".got", 4) != 0
&& strcmp (name, ".plt") != 0
&& strcmp (name, ".dynbss") != 0)
{
continue;
}
if (s->size == 0)
{
s->flags |= SEC_EXCLUDE;
}
else if ((s->flags & SEC_HAS_CONTENTS) != 0)
{
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
if (s->contents == NULL)
return FALSE;
}
}
if (elf_hash_table (info)->dynamic_sections_created)
{
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
if (info->executable)
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
}
if (relplt)
{
if (!add_dynamic_entry (DT_PLTGOT, 0)
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|| !add_dynamic_entry (DT_JMPREL, 0))
return FALSE;
if (elf64_alpha_use_secureplt
&& !add_dynamic_entry (DT_ALPHA_PLTRO, 1))
return FALSE;
}
if (!add_dynamic_entry (DT_RELA, 0)
|| !add_dynamic_entry (DT_RELASZ, 0)
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
return FALSE;
if (info->flags & DF_TEXTREL)
{
if (!add_dynamic_entry (DT_TEXTREL, 0))
return FALSE;
}
}
#undef add_dynamic_entry
return TRUE;
}
struct alpha_relax_info
{
bfd *abfd;
asection *sec;
bfd_byte *contents;
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *relocs, *relend;
struct bfd_link_info *link_info;
bfd_vma gp;
bfd *gotobj;
asection *tsec;
struct alpha_elf_link_hash_entry *h;
struct alpha_elf_got_entry **first_gotent;
struct alpha_elf_got_entry *gotent;
bfd_boolean changed_contents;
bfd_boolean changed_relocs;
unsigned char other;
};
static Elf_Internal_Rela *
elf64_alpha_find_reloc_at_ofs (Elf_Internal_Rela *rel,
Elf_Internal_Rela *relend,
bfd_vma offset, int type)
{
while (rel < relend)
{
if (rel->r_offset == offset
&& ELF64_R_TYPE (rel->r_info) == (unsigned int) type)
return rel;
++rel;
}
return NULL;
}
static bfd_boolean
elf64_alpha_relax_got_load (struct alpha_relax_info *info, bfd_vma symval,
Elf_Internal_Rela *irel, unsigned long r_type)
{
unsigned int insn;
bfd_signed_vma disp;
insn = bfd_get_32 (info->abfd, info->contents + irel->r_offset);
if (insn >> 26 != OP_LDQ)
{
reloc_howto_type *howto = elf64_alpha_howto_table + r_type;
((*_bfd_error_handler)
("%B: %A+0x%lx: warning: %s relocation against unexpected insn",
info->abfd, info->sec,
(unsigned long) irel->r_offset, howto->name));
return TRUE;
}
if (alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info))
return TRUE;
if (r_type == R_ALPHA_GOTTPREL && info->link_info->shared)
return TRUE;
if (r_type == R_ALPHA_LITERAL)
{
if ((info->h && info->h->root.root.type == bfd_link_hash_undefweak)
|| (!info->link_info->shared
&& (symval >= (bfd_vma)-0x8000 || symval < 0x8000)))
{
disp = 0;
insn = (OP_LDA << 26) | (insn & (31 << 21)) | (31 << 16);
insn |= (symval & 0xffff);
r_type = R_ALPHA_NONE;
}
else
{
disp = symval - info->gp;
insn = (OP_LDA << 26) | (insn & 0x03ff0000);
r_type = R_ALPHA_GPREL16;
}
}
else
{
bfd_vma dtp_base, tp_base;
BFD_ASSERT (elf_hash_table (info->link_info)->tls_sec != NULL);
dtp_base = alpha_get_dtprel_base (info->link_info);
tp_base = alpha_get_tprel_base (info->link_info);
disp = symval - (r_type == R_ALPHA_GOTDTPREL ? dtp_base : tp_base);
insn = (OP_LDA << 26) | (insn & (31 << 21)) | (31 << 16);
switch (r_type)
{
case R_ALPHA_GOTDTPREL:
r_type = R_ALPHA_DTPREL16;
break;
case R_ALPHA_GOTTPREL:
r_type = R_ALPHA_TPREL16;
break;
default:
BFD_ASSERT (0);
return FALSE;
}
}
if (disp < -0x8000 || disp >= 0x8000)
return TRUE;
bfd_put_32 (info->abfd, (bfd_vma) insn, info->contents + irel->r_offset);
info->changed_contents = TRUE;
if (--info->gotent->use_count == 0)
{
int sz = alpha_got_entry_size (r_type);
alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
if (!info->h)
alpha_elf_tdata (info->gotobj)->local_got_size -= sz;
}
irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), r_type);
info->changed_relocs = TRUE;
return TRUE;
}
static bfd_vma
elf64_alpha_relax_opt_call (struct alpha_relax_info *info, bfd_vma symval)
{
if ((info->other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_NOPV)
return symval;
else if ((info->other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_STD_GPLOAD)
;
else
{
Elf_Internal_Rela *tsec_relocs, *tsec_relend, *tsec_free, *gpdisp;
bfd_vma ofs;
if (info->sec == info->tsec)
{
tsec_relocs = info->relocs;
tsec_relend = info->relend;
tsec_free = NULL;
}
else
{
tsec_relocs = (_bfd_elf_link_read_relocs
(info->abfd, info->tsec, (PTR) NULL,
(Elf_Internal_Rela *) NULL,
info->link_info->keep_memory));
if (tsec_relocs == NULL)
return 0;
tsec_relend = tsec_relocs + info->tsec->reloc_count;
tsec_free = (info->link_info->keep_memory ? NULL : tsec_relocs);
}
ofs = (symval - info->tsec->output_section->vma
- info->tsec->output_offset);
gpdisp = (elf64_alpha_find_reloc_at_ofs
(tsec_relocs, tsec_relend, ofs, R_ALPHA_GPDISP));
if (!gpdisp || gpdisp->r_addend != 4)
{
if (tsec_free)
free (tsec_free);
return 0;
}
if (tsec_free)
free (tsec_free);
}
if (info->link_info->hash->creator != info->tsec->owner->xvec
|| info->gotobj != alpha_elf_tdata (info->tsec->owner)->gotobj)
return 0;
return symval + 8;
}
static bfd_boolean
elf64_alpha_relax_with_lituse (struct alpha_relax_info *info,
bfd_vma symval, Elf_Internal_Rela *irel)
{
Elf_Internal_Rela *urel, *irelend = info->relend;
int flags, count, i;
bfd_signed_vma disp;
bfd_boolean fits16;
bfd_boolean fits32;
bfd_boolean lit_reused = FALSE;
bfd_boolean all_optimized = TRUE;
unsigned int lit_insn;
lit_insn = bfd_get_32 (info->abfd, info->contents + irel->r_offset);
if (lit_insn >> 26 != OP_LDQ)
{
((*_bfd_error_handler)
("%B: %A+0x%lx: warning: LITERAL relocation against unexpected insn",
info->abfd, info->sec,
(unsigned long) irel->r_offset));
return TRUE;
}
if (alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info))
return TRUE;
for (urel = irel+1, flags = count = 0; urel < irelend; ++urel, ++count)
{
if (ELF64_R_TYPE (urel->r_info) != R_ALPHA_LITUSE)
break;
if (urel->r_addend <= 6)
flags |= 1 << urel->r_addend;
}
disp = symval - info->gp;
for (urel = irel+1, i = 0; i < count; ++i, ++urel)
{
unsigned int insn;
int insn_disp;
bfd_signed_vma xdisp;
insn = bfd_get_32 (info->abfd, info->contents + urel->r_offset);
switch (urel->r_addend)
{
case LITUSE_ALPHA_ADDR:
default:
all_optimized = FALSE;
break;
case LITUSE_ALPHA_BASE:
insn_disp = ((insn & 0xffff) ^ 0x8000) - 0x8000;
xdisp = disp + insn_disp;
fits16 = (xdisp >= - (bfd_signed_vma) 0x8000 && xdisp < 0x8000);
fits32 = (xdisp >= - (bfd_signed_vma) 0x80000000
&& xdisp < 0x7fff8000);
if (fits16)
{
insn = (insn & 0xffe0ffff) | (lit_insn & 0x001f0000);
urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
R_ALPHA_GPREL16);
urel->r_addend = irel->r_addend;
info->changed_relocs = TRUE;
bfd_put_32 (info->abfd, (bfd_vma) insn,
info->contents + urel->r_offset);
info->changed_contents = TRUE;
}
else if (fits32 && !(flags & ~6))
{
irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
R_ALPHA_GPRELHIGH);
lit_insn = (OP_LDAH << 26) | (lit_insn & 0x03ff0000);
bfd_put_32 (info->abfd, (bfd_vma) lit_insn,
info->contents + irel->r_offset);
lit_reused = TRUE;
info->changed_contents = TRUE;
urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
R_ALPHA_GPRELLOW);
urel->r_addend = irel->r_addend;
info->changed_relocs = TRUE;
}
else
all_optimized = FALSE;
break;
case LITUSE_ALPHA_BYTOFF:
insn &= ~ (unsigned) 0x001ff000;
insn |= ((symval & 7) << 13) | 0x1000;
urel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
urel->r_addend = 0;
info->changed_relocs = TRUE;
bfd_put_32 (info->abfd, (bfd_vma) insn,
info->contents + urel->r_offset);
info->changed_contents = TRUE;
break;
case LITUSE_ALPHA_JSR:
case LITUSE_ALPHA_TLSGD:
case LITUSE_ALPHA_TLSLDM:
case LITUSE_ALPHA_JSRDIRECT:
{
bfd_vma optdest, org;
bfd_signed_vma odisp;
if (info->h && info->h->root.root.type == bfd_link_hash_undefweak)
{
insn |= 31 << 16;
bfd_put_32 (info->abfd, (bfd_vma) insn,
info->contents + urel->r_offset);
info->changed_contents = TRUE;
break;
}
optdest = elf64_alpha_relax_opt_call (info, symval);
org = (info->sec->output_section->vma
+ info->sec->output_offset
+ urel->r_offset + 4);
odisp = (optdest ? optdest : symval) - org;
if (odisp >= -0x400000 && odisp < 0x400000)
{
Elf_Internal_Rela *xrel;
if ((insn & INSN_JSR_MASK) == INSN_JSR)
insn = (OP_BSR << 26) | (insn & 0x03e00000);
else
insn = (OP_BR << 26) | (insn & 0x03e00000);
urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
R_ALPHA_BRADDR);
urel->r_addend = irel->r_addend;
if (optdest)
urel->r_addend += optdest - symval;
else
all_optimized = FALSE;
bfd_put_32 (info->abfd, (bfd_vma) insn,
info->contents + urel->r_offset);
xrel = (elf64_alpha_find_reloc_at_ofs
(info->relocs, info->relend, urel->r_offset,
R_ALPHA_HINT));
if (xrel)
xrel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
info->changed_contents = TRUE;
info->changed_relocs = TRUE;
}
else
all_optimized = FALSE;
if (optdest)
{
Elf_Internal_Rela *gpdisp
= (elf64_alpha_find_reloc_at_ofs
(info->relocs, irelend, urel->r_offset + 4,
R_ALPHA_GPDISP));
if (gpdisp)
{
bfd_byte *p_ldah = info->contents + gpdisp->r_offset;
bfd_byte *p_lda = p_ldah + gpdisp->r_addend;
unsigned int ldah = bfd_get_32 (info->abfd, p_ldah);
unsigned int lda = bfd_get_32 (info->abfd, p_lda);
if (ldah == 0x27ba0000 && lda == 0x23bd0000)
{
bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_ldah);
bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_lda);
gpdisp->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
info->changed_contents = TRUE;
info->changed_relocs = TRUE;
}
}
}
}
break;
}
}
if (all_optimized)
{
if (--info->gotent->use_count == 0)
{
int sz = alpha_got_entry_size (R_ALPHA_LITERAL);
alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
if (!info->h)
alpha_elf_tdata (info->gotobj)->local_got_size -= sz;
}
if (!lit_reused)
{
irel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
info->changed_relocs = TRUE;
bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP,
info->contents + irel->r_offset);
info->changed_contents = TRUE;
}
return TRUE;
}
else
return elf64_alpha_relax_got_load (info, symval, irel, R_ALPHA_LITERAL);
}
static bfd_boolean
elf64_alpha_relax_tls_get_addr (struct alpha_relax_info *info, bfd_vma symval,
Elf_Internal_Rela *irel, bfd_boolean is_gd)
{
bfd_byte *pos[5];
unsigned int insn;
Elf_Internal_Rela *gpdisp, *hint;
bfd_boolean dynamic, use_gottprel, pos1_unusable;
unsigned long new_symndx;
dynamic = alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info);
if (is_gd && info->h && (info->h->flags & ALPHA_ELF_LINK_HASH_TLS_IE))
;
else if (info->link_info->shared && !dynamic
&& (info->link_info->flags & DF_STATIC_TLS))
;
else if (info->link_info->shared)
return TRUE;
if (irel + 2 >= info->relend)
return TRUE;
if (ELF64_R_TYPE (irel[1].r_info) != R_ALPHA_LITERAL
|| ELF64_R_TYPE (irel[2].r_info) != R_ALPHA_LITUSE
|| irel[2].r_addend != (is_gd ? LITUSE_ALPHA_TLSGD : LITUSE_ALPHA_TLSLDM))
return TRUE;
gpdisp = elf64_alpha_find_reloc_at_ofs (info->relocs, info->relend,
irel[2].r_offset + 4, R_ALPHA_GPDISP);
if (!gpdisp)
return TRUE;
pos[0] = info->contents + irel[0].r_offset;
pos[1] = info->contents + irel[1].r_offset;
pos[2] = info->contents + irel[2].r_offset;
pos[3] = info->contents + gpdisp->r_offset;
pos[4] = pos[3] + gpdisp->r_addend;
pos1_unusable = FALSE;
if (pos[1] + 4 == pos[0])
{
bfd_byte *tmp = pos[0];
pos[0] = pos[1];
pos[1] = tmp;
}
else if (pos[1] < pos[0])
pos1_unusable = TRUE;
if (pos[1] >= pos[2] || pos[2] >= pos[3])
return TRUE;
{
struct alpha_elf_got_entry *lit_gotent;
struct alpha_elf_link_hash_entry *lit_h;
unsigned long indx;
BFD_ASSERT (ELF64_R_SYM (irel[1].r_info) >= info->symtab_hdr->sh_info);
indx = ELF64_R_SYM (irel[1].r_info) - info->symtab_hdr->sh_info;
lit_h = alpha_elf_sym_hashes (info->abfd)[indx];
while (lit_h->root.root.type == bfd_link_hash_indirect
|| lit_h->root.root.type == bfd_link_hash_warning)
lit_h = (struct alpha_elf_link_hash_entry *) lit_h->root.root.u.i.link;
for (lit_gotent = lit_h->got_entries; lit_gotent ;
lit_gotent = lit_gotent->next)
if (lit_gotent->gotobj == info->gotobj
&& lit_gotent->reloc_type == R_ALPHA_LITERAL
&& lit_gotent->addend == irel[1].r_addend)
break;
BFD_ASSERT (lit_gotent);
if (--lit_gotent->use_count == 0)
{
int sz = alpha_got_entry_size (R_ALPHA_LITERAL);
alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
}
}
use_gottprel = FALSE;
new_symndx = is_gd ? ELF64_R_SYM (irel->r_info) : 0;
switch (!dynamic && !info->link_info->shared)
{
case 1:
{
bfd_vma tp_base;
bfd_signed_vma disp;
BFD_ASSERT (elf_hash_table (info->link_info)->tls_sec != NULL);
tp_base = alpha_get_tprel_base (info->link_info);
disp = symval - tp_base;
if (disp >= -0x8000 && disp < 0x8000)
{
insn = (OP_LDA << 26) | (16 << 21) | (31 << 16);
bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]);
bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[1]);
irel[0].r_offset = pos[0] - info->contents;
irel[0].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_TPREL16);
irel[1].r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
break;
}
else if (disp >= -(bfd_signed_vma) 0x80000000
&& disp < (bfd_signed_vma) 0x7fff8000
&& !pos1_unusable)
{
insn = (OP_LDAH << 26) | (16 << 21) | (31 << 16);
bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]);
insn = (OP_LDA << 26) | (16 << 21) | (16 << 16);
bfd_put_32 (info->abfd, (bfd_vma) insn, pos[1]);
irel[0].r_offset = pos[0] - info->contents;
irel[0].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_TPRELHI);
irel[1].r_offset = pos[1] - info->contents;
irel[1].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_TPRELLO);
break;
}
}
default:
use_gottprel = TRUE;
insn = (OP_LDQ << 26) | (16 << 21) | (29 << 16);
bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]);
bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[1]);
irel[0].r_offset = pos[0] - info->contents;
irel[0].r_info = ELF64_R_INFO (new_symndx, R_ALPHA_GOTTPREL);
irel[1].r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
break;
}
bfd_put_32 (info->abfd, (bfd_vma) INSN_RDUNIQ, pos[2]);
insn = INSN_ADDQ | (16 << 21) | (0 << 16) | (0 << 0);
bfd_put_32 (info->abfd, (bfd_vma) insn, pos[3]);
bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[4]);
irel[2].r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
gpdisp->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
hint = elf64_alpha_find_reloc_at_ofs (info->relocs, info->relend,
irel[2].r_offset, R_ALPHA_HINT);
if (hint)
hint->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
info->changed_contents = TRUE;
info->changed_relocs = TRUE;
if (--info->gotent->use_count == 0)
{
int sz = alpha_got_entry_size (info->gotent->reloc_type);
alpha_elf_tdata (info->gotobj)->total_got_size -= sz;
if (!info->h)
alpha_elf_tdata (info->gotobj)->local_got_size -= sz;
}
if (use_gottprel)
{
struct alpha_elf_got_entry *tprel_gotent;
for (tprel_gotent = *info->first_gotent; tprel_gotent ;
tprel_gotent = tprel_gotent->next)
if (tprel_gotent->gotobj == info->gotobj
&& tprel_gotent->reloc_type == R_ALPHA_GOTTPREL
&& tprel_gotent->addend == irel->r_addend)
break;
if (tprel_gotent)
tprel_gotent->use_count++;
else
{
if (info->gotent->use_count == 0)
tprel_gotent = info->gotent;
else
{
tprel_gotent = (struct alpha_elf_got_entry *)
bfd_alloc (info->abfd, sizeof (struct alpha_elf_got_entry));
if (!tprel_gotent)
return FALSE;
tprel_gotent->next = *info->first_gotent;
*info->first_gotent = tprel_gotent;
tprel_gotent->gotobj = info->gotobj;
tprel_gotent->addend = irel->r_addend;
tprel_gotent->got_offset = -1;
tprel_gotent->reloc_done = 0;
tprel_gotent->reloc_xlated = 0;
}
tprel_gotent->use_count = 1;
tprel_gotent->reloc_type = R_ALPHA_GOTTPREL;
}
}
return TRUE;
}
static bfd_boolean
elf64_alpha_relax_section (bfd *abfd, asection *sec,
struct bfd_link_info *link_info, bfd_boolean *again)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *internal_relocs;
Elf_Internal_Rela *irel, *irelend;
Elf_Internal_Sym *isymbuf = NULL;
struct alpha_elf_got_entry **local_got_entries;
struct alpha_relax_info info;
*again = FALSE;
if (link_info->relocatable
|| ((sec->flags & (SEC_CODE | SEC_RELOC | SEC_ALLOC))
!= (SEC_CODE | SEC_RELOC | SEC_ALLOC))
|| sec->reloc_count == 0)
return TRUE;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
local_got_entries = alpha_elf_tdata(abfd)->local_got_entries;
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;
memset(&info, 0, sizeof (info));
info.abfd = abfd;
info.sec = sec;
info.link_info = link_info;
info.symtab_hdr = symtab_hdr;
info.relocs = internal_relocs;
info.relend = irelend = internal_relocs + sec->reloc_count;
info.gotobj = alpha_elf_tdata (abfd)->gotobj;
if (info.gotobj)
{
asection *sgot = alpha_elf_tdata (info.gotobj)->got;
info.gp = (sgot->output_section->vma
+ sgot->output_offset
+ 0x8000);
}
if (elf_section_data (sec)->this_hdr.contents != NULL)
info.contents = elf_section_data (sec)->this_hdr.contents;
else
{
if (!bfd_malloc_and_get_section (abfd, sec, &info.contents))
goto error_return;
}
for (irel = internal_relocs; irel < irelend; irel++)
{
bfd_vma symval;
struct alpha_elf_got_entry *gotent;
unsigned long r_type = ELF64_R_TYPE (irel->r_info);
unsigned long r_symndx = ELF64_R_SYM (irel->r_info);
switch (r_type)
{
case R_ALPHA_LITERAL:
case R_ALPHA_GPRELHIGH:
case R_ALPHA_GPRELLOW:
case R_ALPHA_GOTDTPREL:
case R_ALPHA_GOTTPREL:
case R_ALPHA_TLSGD:
break;
case R_ALPHA_TLSLDM:
r_symndx = 0;
break;
default:
continue;
}
if (r_symndx < symtab_hdr->sh_info)
{
Elf_Internal_Sym *isym;
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 == NULL)
goto error_return;
}
isym = isymbuf + r_symndx;
if (r_type == R_ALPHA_TLSLDM)
{
info.tsec = bfd_abs_section_ptr;
symval = alpha_get_tprel_base (info.link_info);
}
else
{
symval = isym->st_value;
if (isym->st_shndx == SHN_UNDEF)
continue;
else if (isym->st_shndx == SHN_ABS)
info.tsec = bfd_abs_section_ptr;
else if (isym->st_shndx == SHN_COMMON)
info.tsec = bfd_com_section_ptr;
else
info.tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
}
info.h = NULL;
info.other = isym->st_other;
if (local_got_entries)
info.first_gotent = &local_got_entries[r_symndx];
else
{
info.first_gotent = &info.gotent;
info.gotent = NULL;
}
}
else
{
unsigned long indx;
struct alpha_elf_link_hash_entry *h;
indx = r_symndx - symtab_hdr->sh_info;
h = alpha_elf_sym_hashes (abfd)[indx];
BFD_ASSERT (h != NULL);
while (h->root.root.type == bfd_link_hash_indirect
|| h->root.root.type == bfd_link_hash_warning)
h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link;
if (h->root.root.type == bfd_link_hash_undefined)
continue;
if (h->root.root.type == bfd_link_hash_undefweak)
{
info.tsec = bfd_abs_section_ptr;
symval = 0;
}
else if (!h->root.def_regular)
{
if (r_type != R_ALPHA_TLSGD)
continue;
info.tsec = bfd_abs_section_ptr;
symval = 0;
}
else
{
info.tsec = h->root.root.u.def.section;
symval = h->root.root.u.def.value;
}
info.h = h;
info.other = h->root.other;
info.first_gotent = &h->got_entries;
}
for (gotent = *info.first_gotent; gotent ; gotent = gotent->next)
if (gotent->gotobj == info.gotobj
&& gotent->reloc_type == r_type
&& gotent->addend == irel->r_addend)
break;
info.gotent = gotent;
symval += info.tsec->output_section->vma + info.tsec->output_offset;
symval += irel->r_addend;
switch (r_type)
{
case R_ALPHA_LITERAL:
BFD_ASSERT(info.gotent != NULL);
if (irel+1 < irelend
&& ELF64_R_TYPE (irel[1].r_info) == R_ALPHA_LITUSE)
{
if (!elf64_alpha_relax_with_lituse (&info, symval, irel))
goto error_return;
}
else
{
if (!elf64_alpha_relax_got_load (&info, symval, irel, r_type))
goto error_return;
}
break;
case R_ALPHA_GOTDTPREL:
case R_ALPHA_GOTTPREL:
BFD_ASSERT(info.gotent != NULL);
if (!elf64_alpha_relax_got_load (&info, symval, irel, r_type))
goto error_return;
break;
case R_ALPHA_TLSGD:
case R_ALPHA_TLSLDM:
BFD_ASSERT(info.gotent != NULL);
if (!elf64_alpha_relax_tls_get_addr (&info, symval, irel,
r_type == R_ALPHA_TLSGD))
goto error_return;
break;
}
}
if (!elf64_alpha_size_plt_section (link_info))
return FALSE;
if (!elf64_alpha_size_got_sections (link_info))
return FALSE;
if (!elf64_alpha_size_rela_got_section (link_info))
return FALSE;
if (isymbuf != NULL
&& symtab_hdr->contents != (unsigned char *) isymbuf)
{
if (!link_info->keep_memory)
free (isymbuf);
else
{
symtab_hdr->contents = (unsigned char *) isymbuf;
}
}
if (info.contents != NULL
&& elf_section_data (sec)->this_hdr.contents != info.contents)
{
if (!info.changed_contents && !link_info->keep_memory)
free (info.contents);
else
{
elf_section_data (sec)->this_hdr.contents = info.contents;
}
}
if (elf_section_data (sec)->relocs != internal_relocs)
{
if (!info.changed_relocs)
free (internal_relocs);
else
elf_section_data (sec)->relocs = internal_relocs;
}
*again = info.changed_contents || info.changed_relocs;
return TRUE;
error_return:
if (isymbuf != NULL
&& symtab_hdr->contents != (unsigned char *) isymbuf)
free (isymbuf);
if (info.contents != NULL
&& elf_section_data (sec)->this_hdr.contents != info.contents)
free (info.contents);
if (internal_relocs != NULL
&& elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
return FALSE;
}
static void
elf64_alpha_emit_dynrel (bfd *abfd, struct bfd_link_info *info,
asection *sec, asection *srel, bfd_vma offset,
long dynindx, long rtype, bfd_vma addend)
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
BFD_ASSERT (srel != NULL);
outrel.r_info = ELF64_R_INFO (dynindx, rtype);
outrel.r_addend = addend;
offset = _bfd_elf_section_offset (abfd, info, sec, offset);
if ((offset | 1) != (bfd_vma) -1)
outrel.r_offset = sec->output_section->vma + sec->output_offset + offset;
else
memset (&outrel, 0, sizeof (outrel));
loc = srel->contents;
loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
bfd_elf64_swap_reloca_out (abfd, &outrel, loc);
BFD_ASSERT (sizeof (Elf64_External_Rela) * srel->reloc_count <= srel->size);
}
static bfd_boolean
elf64_alpha_relocate_section_r (bfd *output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
bfd *input_bfd, asection *input_section,
bfd_byte *contents ATTRIBUTE_UNUSED,
Elf_Internal_Rela *relocs,
Elf_Internal_Sym *local_syms,
asection **local_sections)
{
unsigned long symtab_hdr_sh_info;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
bfd_boolean ret_val = TRUE;
symtab_hdr_sh_info = elf_tdata (input_bfd)->symtab_hdr.sh_info;
relend = relocs + input_section->reloc_count;
for (rel = relocs; rel < relend; rel++)
{
unsigned long r_symndx;
Elf_Internal_Sym *sym;
asection *sec;
unsigned long r_type;
r_type = ELF64_R_TYPE(rel->r_info);
if (r_type >= R_ALPHA_max)
{
(*_bfd_error_handler)
(_("%B: unknown relocation type %d"),
input_bfd, (int) r_type);
bfd_set_error (bfd_error_bad_value);
ret_val = FALSE;
continue;
}
r_symndx = ELF64_R_SYM(rel->r_info);
if (r_type == R_ALPHA_GPDISP || r_type == R_ALPHA_LITUSE)
continue;
if (r_symndx < symtab_hdr_sh_info)
{
sym = local_syms + r_symndx;
if (ELF_ST_TYPE(sym->st_info) == STT_SECTION)
{
sec = local_sections[r_symndx];
rel->r_addend += sec->output_offset + sym->st_value;
}
}
}
return ret_val;
}
static bfd_boolean
elf64_alpha_relocate_section (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)
{
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
asection *sgot, *srel, *srelgot;
bfd *dynobj, *gotobj;
bfd_vma gp, tp_base, dtp_base;
struct alpha_elf_got_entry **local_got_entries;
bfd_boolean ret_val;
if (info->relocatable)
return elf64_alpha_relocate_section_r (output_bfd, info, input_bfd,
input_section, contents, relocs,
local_syms, local_sections);
ret_val = TRUE;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
dynobj = elf_hash_table (info)->dynobj;
if (dynobj)
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
else
srelgot = NULL;
if (input_section->flags & SEC_ALLOC)
{
const char *section_name;
section_name = (bfd_elf_string_from_elf_section
(input_bfd, elf_elfheader(input_bfd)->e_shstrndx,
elf_section_data(input_section)->rel_hdr.sh_name));
BFD_ASSERT(section_name != NULL);
srel = bfd_get_section_by_name (dynobj, section_name);
}
else
srel = NULL;
gotobj = alpha_elf_tdata (input_bfd)->gotobj;
if (gotobj)
{
sgot = alpha_elf_tdata (gotobj)->got;
gp = _bfd_get_gp_value (gotobj);
if (gp == 0)
{
gp = (sgot->output_section->vma
+ sgot->output_offset
+ 0x8000);
_bfd_set_gp_value (gotobj, gp);
}
}
else
{
sgot = NULL;
gp = 0;
}
local_got_entries = alpha_elf_tdata(input_bfd)->local_got_entries;
if (elf_hash_table (info)->tls_sec != NULL)
{
dtp_base = alpha_get_dtprel_base (info);
tp_base = alpha_get_tprel_base (info);
}
else
dtp_base = tp_base = 0;
relend = relocs + input_section->reloc_count;
for (rel = relocs; rel < relend; rel++)
{
struct alpha_elf_link_hash_entry *h = NULL;
struct alpha_elf_got_entry *gotent;
bfd_reloc_status_type r;
reloc_howto_type *howto;
unsigned long r_symndx;
Elf_Internal_Sym *sym = NULL;
asection *sec = NULL;
bfd_vma value;
bfd_vma addend;
bfd_boolean dynamic_symbol_p;
bfd_boolean undef_weak_ref = FALSE;
unsigned long r_type;
r_type = ELF64_R_TYPE(rel->r_info);
if (r_type >= R_ALPHA_max)
{
(*_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 = elf64_alpha_howto_table + r_type;
r_symndx = ELF64_R_SYM(rel->r_info);
if (r_type == R_ALPHA_TLSLDM)
r_symndx = 0;
if (r_symndx < symtab_hdr->sh_info)
{
asection *msec;
sym = local_syms + r_symndx;
sec = local_sections[r_symndx];
msec = sec;
value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
if (r_symndx == 0
&& (r_type == R_ALPHA_TLSLDM
|| r_type == R_ALPHA_GOTTPREL
|| r_type == R_ALPHA_TPREL64
|| r_type == R_ALPHA_TPRELHI
|| r_type == R_ALPHA_TPRELLO
|| r_type == R_ALPHA_TPREL16))
value = dtp_base;
if (local_got_entries)
gotent = local_got_entries[r_symndx];
else
gotent = NULL;
if ((sec->flags & SEC_MERGE)
&& ELF_ST_TYPE (sym->st_info) == STT_SECTION
&& sec->sec_info_type == ELF_INFO_TYPE_MERGE
&& gotent
&& !gotent->reloc_xlated)
{
struct alpha_elf_got_entry *ent;
for (ent = gotent; ent; ent = ent->next)
{
ent->reloc_xlated = 1;
if (ent->use_count == 0)
continue;
msec = sec;
ent->addend =
_bfd_merged_section_offset (output_bfd, &msec,
elf_section_data (sec)->
sec_info,
sym->st_value + ent->addend);
ent->addend -= sym->st_value;
ent->addend += msec->output_section->vma
+ msec->output_offset
- sec->output_section->vma
- sec->output_offset;
}
}
dynamic_symbol_p = FALSE;
}
else
{
bfd_boolean warned;
bfd_boolean unresolved_reloc;
struct elf_link_hash_entry *hh;
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,
hh, sec, value,
unresolved_reloc, warned);
if (warned)
continue;
if (value == 0
&& ! unresolved_reloc
&& hh->root.type == bfd_link_hash_undefweak)
undef_weak_ref = TRUE;
h = (struct alpha_elf_link_hash_entry *) hh;
dynamic_symbol_p = alpha_elf_dynamic_symbol_p (&h->root, info);
gotent = h->got_entries;
}
addend = rel->r_addend;
value += addend;
for (; gotent ; gotent = gotent->next)
if (gotent->gotobj == gotobj
&& gotent->reloc_type == r_type
&& gotent->addend == addend)
break;
switch (r_type)
{
case R_ALPHA_GPDISP:
{
bfd_byte *p_ldah, *p_lda;
BFD_ASSERT(gp != 0);
value = (input_section->output_section->vma
+ input_section->output_offset
+ rel->r_offset);
p_ldah = contents + rel->r_offset;
p_lda = p_ldah + rel->r_addend;
r = elf64_alpha_do_reloc_gpdisp (input_bfd, gp - value,
p_ldah, p_lda);
}
break;
case R_ALPHA_LITERAL:
BFD_ASSERT(sgot != NULL);
BFD_ASSERT(gp != 0);
BFD_ASSERT(gotent != NULL);
BFD_ASSERT(gotent->use_count >= 1);
if (!gotent->reloc_done)
{
gotent->reloc_done = 1;
bfd_put_64 (output_bfd, value,
sgot->contents + gotent->got_offset);
if (info->shared && !dynamic_symbol_p && !undef_weak_ref)
elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
gotent->got_offset, 0,
R_ALPHA_RELATIVE, value);
}
value = (sgot->output_section->vma
+ sgot->output_offset
+ gotent->got_offset);
value -= gp;
goto default_reloc;
case R_ALPHA_GPREL32:
if (r_symndx == 0)
{
r = bfd_reloc_ok;
break;
}
case R_ALPHA_GPREL16:
case R_ALPHA_GPRELLOW:
if (dynamic_symbol_p)
{
(*_bfd_error_handler)
(_("%B: gp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
BFD_ASSERT(gp != 0);
value -= gp;
goto default_reloc;
case R_ALPHA_GPRELHIGH:
if (dynamic_symbol_p)
{
(*_bfd_error_handler)
(_("%B: gp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
BFD_ASSERT(gp != 0);
value -= gp;
value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
goto default_reloc;
case R_ALPHA_HINT:
if (dynamic_symbol_p)
{
r = bfd_reloc_ok;
break;
}
value -= 4;
goto default_reloc;
case R_ALPHA_BRADDR:
if (dynamic_symbol_p)
{
(*_bfd_error_handler)
(_("%B: pc-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
value -= 4;
goto default_reloc;
case R_ALPHA_BRSGP:
{
int other;
const char *name;
value -= 4;
if (h != NULL && sec != NULL
&& alpha_elf_tdata (sec->owner)->gotobj
&& gotobj != alpha_elf_tdata (sec->owner)->gotobj)
{
(*_bfd_error_handler)
(_("%B: change in gp: BRSGP %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
if (h != NULL)
other = h->root.other;
else
other = sym->st_other;
switch (other & STO_ALPHA_STD_GPLOAD)
{
case STO_ALPHA_NOPV:
break;
case STO_ALPHA_STD_GPLOAD:
value += 8;
break;
default:
if (h != NULL)
name = h->root.root.root.string;
else
{
name = (bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name));
if (name == NULL)
name = _("<unknown>");
else if (name[0] == 0)
name = bfd_section_name (input_bfd, sec);
}
(*_bfd_error_handler)
(_("%B: !samegp reloc against symbol without .prologue: %s"),
input_bfd, name);
ret_val = FALSE;
break;
}
goto default_reloc;
}
case R_ALPHA_REFLONG:
case R_ALPHA_REFQUAD:
case R_ALPHA_DTPREL64:
case R_ALPHA_TPREL64:
{
long dynindx, dyntype = r_type;
bfd_vma dynaddend;
if (dynamic_symbol_p)
{
BFD_ASSERT(h->root.dynindx != -1);
dynindx = h->root.dynindx;
dynaddend = addend;
addend = 0, value = 0;
}
else if (r_type == R_ALPHA_DTPREL64)
{
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
value -= dtp_base;
goto default_reloc;
}
else if (r_type == R_ALPHA_TPREL64)
{
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
if (!info->shared)
{
value -= tp_base;
goto default_reloc;
}
dynindx = 0;
dynaddend = value - dtp_base;
}
else if (info->shared
&& r_symndx != 0
&& (input_section->flags & SEC_ALLOC)
&& !undef_weak_ref)
{
if (r_type == R_ALPHA_REFLONG)
{
(*_bfd_error_handler)
(_("%B: unhandled dynamic relocation against %s"),
input_bfd,
h->root.root.root.string);
ret_val = FALSE;
}
dynindx = 0;
dyntype = R_ALPHA_RELATIVE;
dynaddend = value;
}
else
goto default_reloc;
if (input_section->flags & SEC_ALLOC)
elf64_alpha_emit_dynrel (output_bfd, info, input_section,
srel, rel->r_offset, dynindx,
dyntype, dynaddend);
}
goto default_reloc;
case R_ALPHA_SREL16:
case R_ALPHA_SREL32:
case R_ALPHA_SREL64:
if (dynamic_symbol_p)
{
(*_bfd_error_handler)
(_("%B: pc-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
else if ((info->shared || info->pie) && undef_weak_ref)
{
(*_bfd_error_handler)
(_("%B: pc-relative relocation against undefined weak symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
if (r_symndx == 0)
howto = (elf64_alpha_howto_table
+ (r_type - R_ALPHA_SREL32 + R_ALPHA_REFLONG));
goto default_reloc;
case R_ALPHA_TLSLDM:
dynamic_symbol_p = 0;
case R_ALPHA_TLSGD:
if (!gotent->reloc_done)
{
gotent->reloc_done = 1;
bfd_put_64 (output_bfd, !info->shared && !dynamic_symbol_p,
sgot->contents + gotent->got_offset);
if (info->shared && !dynamic_symbol_p)
elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
gotent->got_offset, 0,
R_ALPHA_DTPMOD64, 0);
if (dynamic_symbol_p || r_type == R_ALPHA_TLSLDM)
value = 0;
else
{
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
value -= dtp_base;
}
bfd_put_64 (output_bfd, value,
sgot->contents + gotent->got_offset + 8);
}
value = (sgot->output_section->vma
+ sgot->output_offset
+ gotent->got_offset);
value -= gp;
goto default_reloc;
case R_ALPHA_DTPRELHI:
case R_ALPHA_DTPRELLO:
case R_ALPHA_DTPREL16:
if (dynamic_symbol_p)
{
(*_bfd_error_handler)
(_("%B: dtp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
value -= dtp_base;
if (r_type == R_ALPHA_DTPRELHI)
value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
goto default_reloc;
case R_ALPHA_TPRELHI:
case R_ALPHA_TPRELLO:
case R_ALPHA_TPREL16:
if (info->shared)
{
(*_bfd_error_handler)
(_("%B: TLS local exec code cannot be linked into shared objects"),
input_bfd);
ret_val = FALSE;
}
else if (dynamic_symbol_p)
{
(*_bfd_error_handler)
(_("%B: tp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
value -= tp_base;
if (r_type == R_ALPHA_TPRELHI)
value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1);
goto default_reloc;
case R_ALPHA_GOTDTPREL:
case R_ALPHA_GOTTPREL:
BFD_ASSERT(sgot != NULL);
BFD_ASSERT(gp != 0);
BFD_ASSERT(gotent != NULL);
BFD_ASSERT(gotent->use_count >= 1);
if (!gotent->reloc_done)
{
gotent->reloc_done = 1;
if (dynamic_symbol_p)
value = 0;
else
{
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
if (r_type == R_ALPHA_GOTDTPREL)
value -= dtp_base;
else if (!info->shared)
value -= tp_base;
else
{
elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
gotent->got_offset, 0,
R_ALPHA_TPREL64,
value - dtp_base);
value = 0;
}
}
bfd_put_64 (output_bfd, value,
sgot->contents + gotent->got_offset);
}
value = (sgot->output_section->vma
+ sgot->output_offset
+ gotent->got_offset);
value -= gp;
goto default_reloc;
default:
default_reloc:
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset, value, 0);
break;
}
switch (r)
{
case bfd_reloc_ok:
break;
case bfd_reloc_overflow:
{
const char *name;
if (r_symndx < symtab_hdr->sh_info
&& sec != NULL && howto->pc_relative
&& elf_discarded_section (sec))
break;
if (h != NULL)
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, sec);
}
if (! ((*info->callbacks->reloc_overflow)
(info, (h ? &h->root.root : NULL), name, howto->name,
(bfd_vma) 0, input_bfd, input_section,
rel->r_offset)))
ret_val = FALSE;
}
break;
default:
case bfd_reloc_outofrange:
abort ();
}
}
return ret_val;
}
static bfd_boolean
elf64_alpha_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
struct alpha_elf_link_hash_entry *ah = (struct alpha_elf_link_hash_entry *)h;
bfd *dynobj = elf_hash_table(info)->dynobj;
if (h->needs_plt)
{
asection *splt, *sgot, *srel;
Elf_Internal_Rela outrel;
bfd_byte *loc;
bfd_vma got_addr, plt_addr;
bfd_vma plt_index;
struct alpha_elf_got_entry *gotent;
BFD_ASSERT (h->dynindx != -1);
splt = bfd_get_section_by_name (dynobj, ".plt");
BFD_ASSERT (splt != NULL);
srel = bfd_get_section_by_name (dynobj, ".rela.plt");
BFD_ASSERT (srel != NULL);
for (gotent = ah->got_entries; gotent ; gotent = gotent->next)
if (gotent->reloc_type == R_ALPHA_LITERAL
&& gotent->use_count > 0)
{
unsigned int insn;
int disp;
sgot = alpha_elf_tdata (gotent->gotobj)->got;
BFD_ASSERT (sgot != NULL);
BFD_ASSERT (gotent->got_offset != -1);
BFD_ASSERT (gotent->plt_offset != -1);
got_addr = (sgot->output_section->vma
+ sgot->output_offset
+ gotent->got_offset);
plt_addr = (splt->output_section->vma
+ splt->output_offset
+ gotent->plt_offset);
plt_index = (gotent->plt_offset-PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
if (elf64_alpha_use_secureplt)
{
disp = (PLT_HEADER_SIZE - 4) - (gotent->plt_offset + 4);
insn = INSN_AD (INSN_BR, 31, disp);
bfd_put_32 (output_bfd, insn,
splt->contents + gotent->plt_offset);
plt_index = ((gotent->plt_offset - NEW_PLT_HEADER_SIZE)
/ NEW_PLT_ENTRY_SIZE);
}
else
{
disp = -(gotent->plt_offset + 4);
insn = INSN_AD (INSN_BR, 28, disp);
bfd_put_32 (output_bfd, insn,
splt->contents + gotent->plt_offset);
bfd_put_32 (output_bfd, INSN_UNOP,
splt->contents + gotent->plt_offset + 4);
bfd_put_32 (output_bfd, INSN_UNOP,
splt->contents + gotent->plt_offset + 8);
plt_index = ((gotent->plt_offset - OLD_PLT_HEADER_SIZE)
/ OLD_PLT_ENTRY_SIZE);
}
outrel.r_offset = got_addr;
outrel.r_info = ELF64_R_INFO(h->dynindx, R_ALPHA_JMP_SLOT);
outrel.r_addend = 0;
loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
bfd_put_64 (output_bfd, plt_addr,
sgot->contents + gotent->got_offset);
}
}
else if (alpha_elf_dynamic_symbol_p (h, info))
{
asection *srel;
struct alpha_elf_got_entry *gotent;
srel = bfd_get_section_by_name (dynobj, ".rela.got");
BFD_ASSERT (srel != NULL);
for (gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries;
gotent != NULL;
gotent = gotent->next)
{
asection *sgot;
long r_type;
if (gotent->use_count == 0)
continue;
sgot = alpha_elf_tdata (gotent->gotobj)->got;
r_type = gotent->reloc_type;
switch (r_type)
{
case R_ALPHA_LITERAL:
r_type = R_ALPHA_GLOB_DAT;
break;
case R_ALPHA_TLSGD:
r_type = R_ALPHA_DTPMOD64;
break;
case R_ALPHA_GOTDTPREL:
r_type = R_ALPHA_DTPREL64;
break;
case R_ALPHA_GOTTPREL:
r_type = R_ALPHA_TPREL64;
break;
case R_ALPHA_TLSLDM:
default:
abort ();
}
elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
gotent->got_offset, h->dynindx,
r_type, gotent->addend);
if (gotent->reloc_type == R_ALPHA_TLSGD)
elf64_alpha_emit_dynrel (output_bfd, info, sgot, srel,
gotent->got_offset + 8, h->dynindx,
R_ALPHA_DTPREL64, gotent->addend);
}
}
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
elf64_alpha_finish_dynamic_sections (bfd *output_bfd,
struct bfd_link_info *info)
{
bfd *dynobj;
asection *sdyn;
dynobj = elf_hash_table (info)->dynobj;
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
if (elf_hash_table (info)->dynamic_sections_created)
{
asection *splt, *sgotplt, *srelaplt;
Elf64_External_Dyn *dyncon, *dynconend;
bfd_vma plt_vma, gotplt_vma;
splt = bfd_get_section_by_name (dynobj, ".plt");
srelaplt = bfd_get_section_by_name (output_bfd, ".rela.plt");
BFD_ASSERT (splt != NULL && sdyn != NULL);
plt_vma = splt->output_section->vma + splt->output_offset;
gotplt_vma = 0;
if (elf64_alpha_use_secureplt)
{
sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
BFD_ASSERT (sgotplt != NULL);
if (sgotplt->size > 0)
gotplt_vma = sgotplt->output_section->vma + sgotplt->output_offset;
}
dyncon = (Elf64_External_Dyn *) sdyn->contents;
dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
for (; dyncon < dynconend; dyncon++)
{
Elf_Internal_Dyn dyn;
bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
switch (dyn.d_tag)
{
case DT_PLTGOT:
dyn.d_un.d_ptr
= elf64_alpha_use_secureplt ? gotplt_vma : plt_vma;
break;
case DT_PLTRELSZ:
dyn.d_un.d_val = srelaplt ? srelaplt->size : 0;
break;
case DT_JMPREL:
dyn.d_un.d_ptr = srelaplt ? srelaplt->vma : 0;
break;
case DT_RELASZ:
if (srelaplt)
dyn.d_un.d_val -= srelaplt->size;
break;
}
bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
}
if (splt->size > 0)
{
unsigned int insn;
int ofs;
if (elf64_alpha_use_secureplt)
{
ofs = gotplt_vma - (plt_vma + PLT_HEADER_SIZE);
insn = INSN_ABC (INSN_SUBQ, 27, 28, 25);
bfd_put_32 (output_bfd, insn, splt->contents);
insn = INSN_ABO (INSN_LDAH, 28, 28, (ofs + 0x8000) >> 16);
bfd_put_32 (output_bfd, insn, splt->contents + 4);
insn = INSN_ABC (INSN_S4SUBQ, 25, 25, 25);
bfd_put_32 (output_bfd, insn, splt->contents + 8);
insn = INSN_ABO (INSN_LDA, 28, 28, ofs);
bfd_put_32 (output_bfd, insn, splt->contents + 12);
insn = INSN_ABO (INSN_LDQ, 27, 28, 0);
bfd_put_32 (output_bfd, insn, splt->contents + 16);
insn = INSN_ABC (INSN_ADDQ, 25, 25, 25);
bfd_put_32 (output_bfd, insn, splt->contents + 20);
insn = INSN_ABO (INSN_LDQ, 28, 28, 8);
bfd_put_32 (output_bfd, insn, splt->contents + 24);
insn = INSN_AB (INSN_JMP, 31, 27);
bfd_put_32 (output_bfd, insn, splt->contents + 28);
insn = INSN_AD (INSN_BR, 28, -PLT_HEADER_SIZE);
bfd_put_32 (output_bfd, insn, splt->contents + 32);
}
else
{
insn = INSN_AD (INSN_BR, 27, 0);
bfd_put_32 (output_bfd, insn, splt->contents);
insn = INSN_ABO (INSN_LDQ, 27, 27, 12);
bfd_put_32 (output_bfd, insn, splt->contents + 4);
insn = INSN_UNOP;
bfd_put_32 (output_bfd, insn, splt->contents + 8);
insn = INSN_AB (INSN_JMP, 27, 27);
bfd_put_32 (output_bfd, insn, splt->contents + 12);
bfd_put_64 (output_bfd, 0, splt->contents + 16);
bfd_put_64 (output_bfd, 0, splt->contents + 24);
}
elf_section_data (splt->output_section)->this_hdr.sh_entsize = 0;
}
}
return TRUE;
}
static bfd_boolean
elf64_alpha_final_link (bfd *abfd, struct bfd_link_info *info)
{
asection *o;
struct bfd_link_order *p;
asection *mdebug_sec;
struct ecoff_debug_info debug;
const struct ecoff_debug_swap *swap
= get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
HDRR *symhdr = &debug.symbolic_header;
PTR mdebug_handle = NULL;
mdebug_sec = NULL;
for (o = abfd->sections; o != (asection *) NULL; o = o->next)
{
if (strcmp (o->name, ".mdebug") == 0)
{
struct extsym_info einfo;
symhdr->magic = swap->sym_magic;
symhdr->vstamp = 0;
symhdr->ilineMax = 0;
symhdr->cbLine = 0;
symhdr->idnMax = 0;
symhdr->ipdMax = 0;
symhdr->isymMax = 0;
symhdr->ioptMax = 0;
symhdr->iauxMax = 0;
symhdr->issMax = 0;
symhdr->issExtMax = 0;
symhdr->ifdMax = 0;
symhdr->crfd = 0;
symhdr->iextMax = 0;
debug.line = NULL;
debug.external_dnr = NULL;
debug.external_pdr = NULL;
debug.external_sym = NULL;
debug.external_opt = NULL;
debug.external_aux = NULL;
debug.ss = NULL;
debug.ssext = debug.ssext_end = NULL;
debug.external_fdr = NULL;
debug.external_rfd = NULL;
debug.external_ext = debug.external_ext_end = NULL;
mdebug_handle = bfd_ecoff_debug_init (abfd, &debug, swap, info);
if (mdebug_handle == (PTR) NULL)
return FALSE;
if (1)
{
asection *s;
EXTR esym;
bfd_vma last = 0;
unsigned int i;
static const char * const name[] =
{
".text", ".init", ".fini", ".data",
".rodata", ".sdata", ".sbss", ".bss"
};
static const int sc[] = { scText, scInit, scFini, scData,
scRData, scSData, scSBss, scBss };
esym.jmptbl = 0;
esym.cobol_main = 0;
esym.weakext = 0;
esym.reserved = 0;
esym.ifd = ifdNil;
esym.asym.iss = issNil;
esym.asym.st = stLocal;
esym.asym.reserved = 0;
esym.asym.index = indexNil;
for (i = 0; i < 8; i++)
{
esym.asym.sc = sc[i];
s = bfd_get_section_by_name (abfd, name[i]);
if (s != NULL)
{
esym.asym.value = s->vma;
last = s->vma + s->size;
}
else
esym.asym.value = last;
if (! bfd_ecoff_debug_one_external (abfd, &debug, swap,
name[i], &esym))
return FALSE;
}
}
for (p = o->map_head.link_order;
p != (struct bfd_link_order *) NULL;
p = p->next)
{
asection *input_section;
bfd *input_bfd;
const struct ecoff_debug_swap *input_swap;
struct ecoff_debug_info input_debug;
char *eraw_src;
char *eraw_end;
if (p->type != bfd_indirect_link_order)
{
if (p->type == bfd_data_link_order)
continue;
abort ();
}
input_section = p->u.indirect.section;
input_bfd = input_section->owner;
if (bfd_get_flavour (input_bfd) != bfd_target_elf_flavour
|| (get_elf_backend_data (input_bfd)
->elf_backend_ecoff_debug_swap) == NULL)
{
continue;
}
input_swap = (get_elf_backend_data (input_bfd)
->elf_backend_ecoff_debug_swap);
BFD_ASSERT (p->size == input_section->size);
if (!elf64_alpha_read_ecoff_info (input_bfd, input_section,
&input_debug))
return FALSE;
if (! (bfd_ecoff_debug_accumulate
(mdebug_handle, abfd, &debug, swap, input_bfd,
&input_debug, input_swap, info)))
return FALSE;
eraw_src = input_debug.external_ext;
eraw_end = (eraw_src
+ (input_debug.symbolic_header.iextMax
* input_swap->external_ext_size));
for (;
eraw_src < eraw_end;
eraw_src += input_swap->external_ext_size)
{
EXTR ext;
const char *name;
struct alpha_elf_link_hash_entry *h;
(*input_swap->swap_ext_in) (input_bfd, (PTR) eraw_src, &ext);
if (ext.asym.sc == scNil
|| ext.asym.sc == scUndefined
|| ext.asym.sc == scSUndefined)
continue;
name = input_debug.ssext + ext.asym.iss;
h = alpha_elf_link_hash_lookup (alpha_elf_hash_table (info),
name, FALSE, FALSE, TRUE);
if (h == NULL || h->esym.ifd != -2)
continue;
if (ext.ifd != -1)
{
BFD_ASSERT (ext.ifd
< input_debug.symbolic_header.ifdMax);
ext.ifd = input_debug.ifdmap[ext.ifd];
}
h->esym = ext;
}
free (input_debug.line);
free (input_debug.external_dnr);
free (input_debug.external_pdr);
free (input_debug.external_sym);
free (input_debug.external_opt);
free (input_debug.external_aux);
free (input_debug.ss);
free (input_debug.ssext);
free (input_debug.external_fdr);
free (input_debug.external_rfd);
free (input_debug.external_ext);
input_section->flags &=~ SEC_HAS_CONTENTS;
}
einfo.abfd = abfd;
einfo.info = info;
einfo.debug = &debug;
einfo.swap = swap;
einfo.failed = FALSE;
elf_link_hash_traverse (elf_hash_table (info),
elf64_alpha_output_extsym,
(PTR) &einfo);
if (einfo.failed)
return FALSE;
o->size = bfd_ecoff_debug_size (abfd, &debug, swap);
o->map_head.link_order = (struct bfd_link_order *) NULL;
mdebug_sec = o;
}
}
if (! bfd_elf_final_link (abfd, info))
return FALSE;
{
bfd *i, *dynobj = elf_hash_table(info)->dynobj;
for (i = alpha_elf_hash_table(info)->got_list;
i != NULL;
i = alpha_elf_tdata(i)->got_link_next)
{
asection *sgot;
if (i == dynobj)
continue;
sgot = alpha_elf_tdata(i)->got;
if (! bfd_set_section_contents (abfd, sgot->output_section,
sgot->contents,
(file_ptr) sgot->output_offset,
sgot->size))
return FALSE;
}
}
if (mdebug_sec != (asection *) NULL)
{
BFD_ASSERT (abfd->output_has_begun);
if (! bfd_ecoff_write_accumulated_debug (mdebug_handle, abfd, &debug,
swap, info,
mdebug_sec->filepos))
return FALSE;
bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info);
}
return TRUE;
}
static enum elf_reloc_type_class
elf64_alpha_reloc_type_class (const Elf_Internal_Rela *rela)
{
switch ((int) ELF64_R_TYPE (rela->r_info))
{
case R_ALPHA_RELATIVE:
return reloc_class_relative;
case R_ALPHA_JMP_SLOT:
return reloc_class_plt;
case R_ALPHA_COPY:
return reloc_class_copy;
default:
return reloc_class_normal;
}
}
static const struct bfd_elf_special_section elf64_alpha_special_sections[] =
{
{ ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
{ ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
{ NULL, 0, 0, 0, 0 }
};
static const struct ecoff_debug_swap
elf64_alpha_ecoff_debug_swap =
{
magicSym2,
8,
sizeof (struct hdr_ext),
sizeof (struct dnr_ext),
sizeof (struct pdr_ext),
sizeof (struct sym_ext),
sizeof (struct opt_ext),
sizeof (struct fdr_ext),
sizeof (struct rfd_ext),
sizeof (struct ext_ext),
ecoff_swap_hdr_in,
ecoff_swap_dnr_in,
ecoff_swap_pdr_in,
ecoff_swap_sym_in,
ecoff_swap_opt_in,
ecoff_swap_fdr_in,
ecoff_swap_rfd_in,
ecoff_swap_ext_in,
_bfd_ecoff_swap_tir_in,
_bfd_ecoff_swap_rndx_in,
ecoff_swap_hdr_out,
ecoff_swap_dnr_out,
ecoff_swap_pdr_out,
ecoff_swap_sym_out,
ecoff_swap_opt_out,
ecoff_swap_fdr_out,
ecoff_swap_rfd_out,
ecoff_swap_ext_out,
_bfd_ecoff_swap_tir_out,
_bfd_ecoff_swap_rndx_out,
elf64_alpha_read_ecoff_info
};
static const struct elf_size_info alpha_elf_size_info =
{
sizeof (Elf64_External_Ehdr),
sizeof (Elf64_External_Phdr),
sizeof (Elf64_External_Shdr),
sizeof (Elf64_External_Rel),
sizeof (Elf64_External_Rela),
sizeof (Elf64_External_Sym),
sizeof (Elf64_External_Dyn),
sizeof (Elf_External_Note),
8,
1,
64, 3,
ELFCLASS64, EV_CURRENT,
bfd_elf64_write_out_phdrs,
bfd_elf64_write_shdrs_and_ehdr,
bfd_elf64_write_relocs,
bfd_elf64_swap_symbol_in,
bfd_elf64_swap_symbol_out,
bfd_elf64_slurp_reloc_table,
bfd_elf64_slurp_symbol_table,
bfd_elf64_swap_dyn_in,
bfd_elf64_swap_dyn_out,
bfd_elf64_swap_reloc_in,
bfd_elf64_swap_reloc_out,
bfd_elf64_swap_reloca_in,
bfd_elf64_swap_reloca_out
};
#define TARGET_LITTLE_SYM bfd_elf64_alpha_vec
#define TARGET_LITTLE_NAME "elf64-alpha"
#define ELF_ARCH bfd_arch_alpha
#define ELF_MACHINE_CODE EM_ALPHA
#define ELF_MAXPAGESIZE 0x10000
#define bfd_elf64_bfd_link_hash_table_create \
elf64_alpha_bfd_link_hash_table_create
#define bfd_elf64_bfd_reloc_type_lookup \
elf64_alpha_bfd_reloc_type_lookup
#define elf_info_to_howto \
elf64_alpha_info_to_howto
#define bfd_elf64_mkobject \
elf64_alpha_mkobject
#define elf_backend_object_p \
elf64_alpha_object_p
#define elf_backend_section_from_shdr \
elf64_alpha_section_from_shdr
#define elf_backend_section_flags \
elf64_alpha_section_flags
#define elf_backend_fake_sections \
elf64_alpha_fake_sections
#define bfd_elf64_bfd_is_local_label_name \
elf64_alpha_is_local_label_name
#define bfd_elf64_find_nearest_line \
elf64_alpha_find_nearest_line
#define bfd_elf64_bfd_relax_section \
elf64_alpha_relax_section
#define elf_backend_add_symbol_hook \
elf64_alpha_add_symbol_hook
#define elf_backend_check_relocs \
elf64_alpha_check_relocs
#define elf_backend_create_dynamic_sections \
elf64_alpha_create_dynamic_sections
#define elf_backend_adjust_dynamic_symbol \
elf64_alpha_adjust_dynamic_symbol
#define elf_backend_always_size_sections \
elf64_alpha_always_size_sections
#define elf_backend_size_dynamic_sections \
elf64_alpha_size_dynamic_sections
#define elf_backend_relocate_section \
elf64_alpha_relocate_section
#define elf_backend_finish_dynamic_symbol \
elf64_alpha_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
elf64_alpha_finish_dynamic_sections
#define bfd_elf64_bfd_final_link \
elf64_alpha_final_link
#define elf_backend_reloc_type_class \
elf64_alpha_reloc_type_class
#define elf_backend_ecoff_debug_swap \
&elf64_alpha_ecoff_debug_swap
#define elf_backend_size_info \
alpha_elf_size_info
#define elf_backend_special_sections \
elf64_alpha_special_sections
#define elf_backend_want_got_plt 0
#define elf_backend_plt_readonly 0
#define elf_backend_want_plt_sym 1
#define elf_backend_got_header_size 0
#include "elf64-target.h"
#undef TARGET_LITTLE_SYM
#define TARGET_LITTLE_SYM bfd_elf64_alpha_freebsd_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf64-alpha-freebsd"
static void
elf64_alpha_fbsd_post_process_headers (bfd * abfd,
struct bfd_link_info * link_info ATTRIBUTE_UNUSED)
{
Elf_Internal_Ehdr * i_ehdrp;
i_ehdrp = elf_elfheader (abfd);
i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
#ifdef OLD_FREEBSD_ABI_LABEL
memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8);
#endif
}
#undef elf_backend_post_process_headers
#define elf_backend_post_process_headers \
elf64_alpha_fbsd_post_process_headers
#undef elf64_bed
#define elf64_bed elf64_alpha_fbsd_bed
#include "elf64-target.h"