uint64_t
i386_linux_core_read_xcr0 (struct gdbarch *gdbarch,
struct target_ops *target, bfd *abfd)
{
asection *xstate = bfd_get_section_by_name (abfd, ".reg-xstate");
uint64_t xcr0;
if (xstate)
{
size_t size = bfd_section_size (abfd, xstate);
/* Check extended state size. */
if (size < I386_XSTATE_AVX_SIZE)
xcr0 = I386_XSTATE_SSE_MASK;
else
{
char contents[8];
if (! bfd_get_section_contents (abfd, xstate, contents,
I386_LINUX_XSAVE_XCR0_OFFSET,
8))
{
warning (_("Couldn't read `xcr0' bytes from "
"`.reg-xstate' section in core file."));
return 0;
}
xcr0 = bfd_get_64 (abfd, contents);
}
}
else
xcr0 = 0;
return xcr0;
}
static bfd_vma
read_value (bfd *abfd, bfd_byte *buf, int width, int is_signed)
{
bfd_vma value;
switch (width)
{
case 2:
if (is_signed)
value = bfd_get_signed_16 (abfd, buf);
else
value = bfd_get_16 (abfd, buf);
break;
case 4:
if (is_signed)
value = bfd_get_signed_32 (abfd, buf);
else
value = bfd_get_32 (abfd, buf);
break;
case 8:
if (is_signed)
value = bfd_get_signed_64 (abfd, buf);
else
value = bfd_get_64 (abfd, buf);
break;
default:
BFD_FAIL ();
return 0;
}
return value;
}
uint64_t
i386fbsd_core_read_xcr0 (bfd *abfd)
{
asection *xstate = bfd_get_section_by_name (abfd, ".reg-xstate");
uint64_t xcr0;
if (xstate)
{
size_t size = bfd_section_size (abfd, xstate);
/* Check extended state size. */
if (size < X86_XSTATE_AVX_SIZE)
xcr0 = X86_XSTATE_SSE_MASK;
else
{
char contents[8];
if (! bfd_get_section_contents (abfd, xstate, contents,
I386_FBSD_XSAVE_XCR0_OFFSET,
8))
{
warning (_("Couldn't read `xcr0' bytes from "
"`.reg-xstate' section in core file."));
return X86_XSTATE_SSE_MASK;
}
xcr0 = bfd_get_64 (abfd, contents);
}
}
else
xcr0 = X86_XSTATE_SSE_MASK;
return xcr0;
}
/* Insert the addend/value into the instruction or data object being
relocated. */
bfd_reloc_status_type
_bfd_aarch64_elf_put_addend (bfd *abfd,
bfd_byte *address, bfd_reloc_code_real_type r_type,
reloc_howto_type *howto, bfd_signed_vma addend)
{
bfd_reloc_status_type status = bfd_reloc_ok;
bfd_signed_vma old_addend = addend;
bfd_vma contents;
int size;
size = bfd_get_reloc_size (howto);
switch (size)
{
case 2:
contents = bfd_get_16 (abfd, address);
break;
case 4:
if (howto->src_mask != 0xffffffff)
/* Must be 32-bit instruction, always little-endian. */
contents = bfd_getl32 (address);
else
/* Must be 32-bit data (endianness dependent). */
contents = bfd_get_32 (abfd, address);
break;
case 8:
contents = bfd_get_64 (abfd, address);
break;
default:
abort ();
}
switch (howto->complain_on_overflow)
{
case complain_overflow_dont:
break;
case complain_overflow_signed:
status = aarch64_signed_overflow (addend,
howto->bitsize + howto->rightshift);
break;
case complain_overflow_unsigned:
status = aarch64_unsigned_overflow (addend,
howto->bitsize + howto->rightshift);
break;
case complain_overflow_bitfield:
default:
abort ();
}
addend >>= howto->rightshift;
switch (r_type)
{
case BFD_RELOC_AARCH64_JUMP26:
case BFD_RELOC_AARCH64_CALL26:
contents = reencode_branch_ofs_26 (contents, addend);
break;
case BFD_RELOC_AARCH64_BRANCH19:
contents = reencode_cond_branch_ofs_19 (contents, addend);
break;
case BFD_RELOC_AARCH64_TSTBR14:
contents = reencode_tst_branch_ofs_14 (contents, addend);
break;
case BFD_RELOC_AARCH64_LD_LO19_PCREL:
case BFD_RELOC_AARCH64_GOT_LD_PREL19:
if (old_addend & ((1 << howto->rightshift) - 1))
return bfd_reloc_overflow;
contents = reencode_ld_lit_ofs_19 (contents, addend);
break;
case BFD_RELOC_AARCH64_TLSDESC_CALL:
break;
case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
case BFD_RELOC_AARCH64_ADR_GOT_PAGE:
case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
case BFD_RELOC_AARCH64_ADR_HI21_NC_PCREL:
contents = reencode_adr_imm (contents, addend);
break;
case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_HI12:
case BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC:
case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC:
case BFD_RELOC_AARCH64_ADD_LO12:
/* Corresponds to: add rd, rn, #uimm12 to provide the low order
12 bits of the page offset following
BFD_RELOC_AARCH64_ADR_HI21_PCREL which computes the
(pc-relative) page base. */
contents = reencode_add_imm (contents, addend);
break;
case BFD_RELOC_AARCH64_LDST8_LO12:
case BFD_RELOC_AARCH64_LDST16_LO12:
case BFD_RELOC_AARCH64_LDST32_LO12:
case BFD_RELOC_AARCH64_LDST64_LO12:
case BFD_RELOC_AARCH64_LDST128_LO12:
case BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC:
case BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC:
case BFD_RELOC_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC:
case BFD_RELOC_AARCH64_TLSIE_LD32_GOTTPREL_LO12_NC:
case BFD_RELOC_AARCH64_LD64_GOT_LO12_NC:
case BFD_RELOC_AARCH64_LD32_GOT_LO12_NC:
if (old_addend & ((1 << howto->rightshift) - 1))
return bfd_reloc_overflow;
/* Used for ldr*|str* rt, [rn, #uimm12] to provide the low order
12 bits of the page offset following BFD_RELOC_AARCH64_ADR_HI21_PCREL
which computes the (pc-relative) page base. */
contents = reencode_ldst_pos_imm (contents, addend);
break;
/* Group relocations to create high bits of a 16, 32, 48 or 64
bit signed data or abs address inline. Will change
instruction to MOVN or MOVZ depending on sign of calculated
value. */
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1_NC:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0:
case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G0_NC:
case BFD_RELOC_AARCH64_MOVW_G0_S:
case BFD_RELOC_AARCH64_MOVW_G1_S:
case BFD_RELOC_AARCH64_MOVW_G2_S:
/* NOTE: We can only come here with movz or movn. */
if (addend < 0)
{
/* Force use of MOVN. */
addend = ~addend;
contents = reencode_movzn_to_movn (contents);
}
else
{
/* Force use of MOVZ. */
contents = reencode_movzn_to_movz (contents);
}
/* fall through */
/* Group relocations to create a 16, 32, 48 or 64 bit unsigned
data or abs address inline. */
case BFD_RELOC_AARCH64_MOVW_G0:
case BFD_RELOC_AARCH64_MOVW_G0_NC:
case BFD_RELOC_AARCH64_MOVW_G1:
case BFD_RELOC_AARCH64_MOVW_G1_NC:
case BFD_RELOC_AARCH64_MOVW_G2:
case BFD_RELOC_AARCH64_MOVW_G2_NC:
case BFD_RELOC_AARCH64_MOVW_G3:
contents = reencode_movw_imm (contents, addend);
break;
default:
/* Repack simple data */
if (howto->dst_mask & (howto->dst_mask + 1))
return bfd_reloc_notsupported;
contents = ((contents & ~howto->dst_mask) | (addend & howto->dst_mask));
break;
}
switch (size)
{
case 2:
bfd_put_16 (abfd, contents, address);
break;
case 4:
if (howto->dst_mask != 0xffffffff)
/* must be 32-bit instruction, always little-endian */
bfd_putl32 (contents, address);
else
/* must be 32-bit data (endianness dependent) */
bfd_put_32 (abfd, contents, address);
break;
case 8:
bfd_put_64 (abfd, contents, address);
break;
default:
abort ();
}
return status;
}
