/* AArch64-specific support for NN-bit ELF.
- Copyright (C) 2009-2017 Free Software Foundation, Inc.
+ Copyright (C) 2009-2018 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of BFD, the Binary File Descriptor library.
fragments of the form:
adrp x0, :tlsgd:foo
- R_AARCH64_TLSGD_ADR_PAGE21(foo)
+ R_AARCH64_TLSGD_ADR_PAGE21(foo)
add x0, :tlsgd_lo12:foo
- R_AARCH64_TLSGD_ADD_LO12_NC(foo)
+ R_AARCH64_TLSGD_ADD_LO12_NC(foo)
bl __tls_get_addr
nop
For TLS descriptors the assembler will present us with code
fragments of the form:
- adrp x0, :tlsdesc:foo R_AARCH64_TLSDESC_ADR_PAGE21(foo)
- ldr x1, [x0, #:tlsdesc_lo12:foo] R_AARCH64_TLSDESC_LD64_LO12(foo)
- add x0, x0, #:tlsdesc_lo12:foo R_AARCH64_TLSDESC_ADD_LO12(foo)
+ adrp x0, :tlsdesc:foo R_AARCH64_TLSDESC_ADR_PAGE21(foo)
+ ldr x1, [x0, #:tlsdesc_lo12:foo] R_AARCH64_TLSDESC_LD64_LO12(foo)
+ add x0, x0, #:tlsdesc_lo12:foo R_AARCH64_TLSDESC_ADD_LO12(foo)
.tlsdesccall foo
- blr x1 R_AARCH64_TLSDESC_CALL(foo)
+ blr x1 R_AARCH64_TLSDESC_CALL(foo)
The relocations R_AARCH64_TLSGD_{ADR_PREL21,ADD_LO12_NC} against foo
indicate that foo is thread local and should be accessed via the
#define HOWTO64(...) EMPTY_HOWTO (0)
#define HOWTO32(...) HOWTO (__VA_ARGS__)
#define LOG_FILE_ALIGN 2
-#define BFD_RELOC_AARCH64_TLSDESC_LD32_LO12 BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC
-#define R_AARCH64_P32_TLSDESC_ADD_LO12 R_AARCH64_P32_TLSDESC_ADD_LO12_NC
+#define BFD_RELOC_AARCH64_TLSDESC_LD32_LO12 BFD_RELOC_AARCH64_TLSDESC_LD32_LO12_NC
+#define R_AARCH64_P32_TLSDESC_ADD_LO12 R_AARCH64_P32_TLSDESC_ADD_LO12_NC
#endif
#define IS_AARCH64_TLS_RELOC(R_TYPE) \
#define RELOC_SIZE(HTAB) (sizeof (ElfNN_External_Rela))
/* GOT Entry size - 8 bytes in ELF64 and 4 bytes in ELF32. */
-#define GOT_ENTRY_SIZE (ARCH_SIZE / 8)
-#define PLT_ENTRY_SIZE (32)
-#define PLT_SMALL_ENTRY_SIZE (16)
-#define PLT_TLSDESC_ENTRY_SIZE (32)
+#define GOT_ENTRY_SIZE (ARCH_SIZE / 8)
+#define PLT_ENTRY_SIZE (32)
+#define PLT_SMALL_ENTRY_SIZE (16)
+#define PLT_TLSDESC_ENTRY_SIZE (32)
/* Encoding of the nop instruction. */
#define INSN_NOP 0xd503201f
0x1f, 0x20, 0x03, 0xd5, /* nop */
};
-#define elf_info_to_howto elfNN_aarch64_info_to_howto
-#define elf_info_to_howto_rel elfNN_aarch64_info_to_howto
+#define elf_info_to_howto elfNN_aarch64_info_to_howto
+#define elf_info_to_howto_rel elfNN_aarch64_info_to_howto
#define AARCH64_ELF_ABI_VERSION 0
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
+ /* Group relocations to create a 16, 32, 48 or 64 bit
+ PC relative address inline. */
+
+ /* MOV[NZ]: ((S+A-P) >> 0) & 0xffff */
+ HOWTO64 (AARCH64_R (MOVW_PREL_G0), /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 17, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ AARCH64_R_STR (MOVW_PREL_G0), /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* MOVK: ((S+A-P) >> 0) & 0xffff [no overflow check] */
+ HOWTO64 (AARCH64_R (MOVW_PREL_G0_NC), /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ AARCH64_R_STR (MOVW_PREL_G0_NC), /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* MOV[NZ]: ((S+A-P) >> 16) & 0xffff */
+ HOWTO64 (AARCH64_R (MOVW_PREL_G1), /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 17, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ AARCH64_R_STR (MOVW_PREL_G1), /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* MOVK: ((S+A-P) >> 16) & 0xffff [no overflow check] */
+ HOWTO64 (AARCH64_R (MOVW_PREL_G1_NC), /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ AARCH64_R_STR (MOVW_PREL_G1_NC), /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* MOV[NZ]: ((S+A-P) >> 32) & 0xffff */
+ HOWTO64 (AARCH64_R (MOVW_PREL_G2), /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 17, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ AARCH64_R_STR (MOVW_PREL_G2), /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* MOVK: ((S+A-P) >> 32) & 0xffff [no overflow check] */
+ HOWTO64 (AARCH64_R (MOVW_PREL_G2_NC), /* type */
+ 32, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ AARCH64_R_STR (MOVW_PREL_G2_NC), /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
+ /* MOV[NZ]: ((S+A-P) >> 48) & 0xffff */
+ HOWTO64 (AARCH64_R (MOVW_PREL_G3), /* type */
+ 48, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ TRUE, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bfd_elf_generic_reloc, /* special_function */
+ AARCH64_R_STR (MOVW_PREL_G3), /* name */
+ FALSE, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ TRUE), /* pcrel_offset */
+
/* Relocations to generate 19, 21 and 33 bit PC-relative load/store
addresses: PG(x) is (x & ~0xfff). */
/* Given R_TYPE, return the bfd internal relocation enumerator. */
static bfd_reloc_code_real_type
-elfNN_aarch64_bfd_reloc_from_type (unsigned int r_type)
+elfNN_aarch64_bfd_reloc_from_type (bfd *abfd, unsigned int r_type)
{
static bfd_boolean initialized_p = FALSE;
/* Indexed by R_TYPE, values are offsets in the howto_table. */
/* PR 17512: file: b371e70a. */
if (r_type >= R_AARCH64_end)
{
- _bfd_error_handler (_("Invalid AArch64 reloc number: %d"), r_type);
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r_type);
bfd_set_error (bfd_error_bad_value);
return BFD_RELOC_AARCH64_NONE;
}
}
static reloc_howto_type *
-elfNN_aarch64_howto_from_type (unsigned int r_type)
+elfNN_aarch64_howto_from_type (bfd *abfd, unsigned int r_type)
{
bfd_reloc_code_real_type val;
reloc_howto_type *howto;
if (r_type == R_AARCH64_NONE)
return &elfNN_aarch64_howto_none;
- val = elfNN_aarch64_bfd_reloc_from_type (r_type);
+ val = elfNN_aarch64_bfd_reloc_from_type (abfd, r_type);
howto = elfNN_aarch64_howto_from_bfd_reloc (val);
if (howto != NULL)
}
static void
-elfNN_aarch64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
+elfNN_aarch64_info_to_howto (bfd *abfd, arelent *bfd_reloc,
Elf_Internal_Rela *elf_reloc)
{
unsigned int r_type;
r_type = ELFNN_R_TYPE (elf_reloc->r_info);
- bfd_reloc->howto = elfNN_aarch64_howto_from_type (r_type);
+ bfd_reloc->howto = elfNN_aarch64_howto_from_type (abfd, r_type);
}
static reloc_howto_type *
return NULL;
}
-#define TARGET_LITTLE_SYM aarch64_elfNN_le_vec
-#define TARGET_LITTLE_NAME "elfNN-littleaarch64"
-#define TARGET_BIG_SYM aarch64_elfNN_be_vec
-#define TARGET_BIG_NAME "elfNN-bigaarch64"
+#define TARGET_LITTLE_SYM aarch64_elfNN_le_vec
+#define TARGET_LITTLE_NAME "elfNN-littleaarch64"
+#define TARGET_BIG_SYM aarch64_elfNN_be_vec
+#define TARGET_BIG_NAME "elfNN-bigaarch64"
/* The linker script knows the section names for placement.
The entry_names are used to do simple name mangling on the stubs.
reloc_howto_type *howto;
bfd_vma place;
- howto = elfNN_aarch64_howto_from_type (r_type);
+ howto = elfNN_aarch64_howto_from_type (input_bfd, r_type);
place = (input_section->output_section->vma + input_section->output_offset
+ offset);
- r_type = elfNN_aarch64_bfd_reloc_from_type (r_type);
+ r_type = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type);
value = _bfd_aarch64_elf_resolve_relocation (r_type, place, value, 0, FALSE);
return _bfd_aarch64_elf_put_addend (input_bfd,
input_section->contents + offset, r_type,
if (stub_entry == NULL)
{
/* xgettext:c-format */
- _bfd_error_handler (_("%B: cannot create stub entry %s"),
+ _bfd_error_handler (_("%pB: cannot create stub entry %s"),
section->owner, stub_name);
return NULL;
}
case aarch64_stub_long_branch:
/* We want the value relative to the address 12 bytes back from the
- value itself. */
+ value itself. */
if (!aarch64_relocate (AARCH64_R (PRELNN), stub_bfd, stub_sec,
stub_entry->stub_offset + 16, sym_value + 12))
BFD_FAIL ();
*rt = AARCH64_RT (insn);
*rt2 = *rt;
if (AARCH64_BIT (insn, 21) == 1)
- {
+ {
*pair = TRUE;
*rt2 = AARCH64_RT2 (insn);
}
if (symbol_got_type == GOT_TLS_IE && GOT_TLS_GD_ANY_P (reloc_got_type))
return TRUE;
- if (bfd_link_pic (info))
+ if (!bfd_link_executable (info))
return FALSE;
if (h && h->root.type == bfd_link_hash_undefweak)
unsigned long r_symndx)
{
bfd_reloc_code_real_type bfd_r_type
- = elfNN_aarch64_bfd_reloc_from_type (r_type);
+ = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type);
if (! aarch64_can_relax_tls (input_bfd, info, bfd_r_type, h, r_symndx))
return bfd_r_type;
abfd = stub_entry->target_section->owner;
if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc))
_bfd_error_handler
- (_("%B: error: Erratum 835769 stub out "
+ (_("%pB: error: Erratum 835769 stub out "
"of range (input file too large)"), abfd);
target = stub_entry->target_value;
abfd = stub_entry->target_section->owner;
if (!aarch64_valid_branch_p (veneer_entry_loc, veneered_insn_loc))
_bfd_error_handler
- (_("%B: error: Erratum 843419 stub out "
+ (_("%pB: error: Erratum 843419 stub out "
"of range (input file too large)"), abfd);
branch_insn = 0x14000000;
name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, NULL);
_bfd_error_handler
/* xgettext:c-format */
- (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
- input_bfd, input_section, rel->r_offset, howto->name, name);
+ (_("%pB(%pA+%#" PRIx64 "): "
+ "unresolvable %s relocation against symbol `%s'"),
+ input_bfd, input_section, (uint64_t) rel->r_offset,
+ howto->name, name);
bfd_set_error (bfd_error_bad_value);
return bfd_reloc_notsupported;
}
NULL);
_bfd_error_handler
/* xgettext:c-format */
- (_("%B: relocation %s against STT_GNU_IFUNC "
+ (_("%pB: relocation %s against STT_GNU_IFUNC "
"symbol `%s' isn't handled by %s"), input_bfd,
howto->name, name, __FUNCTION__);
bfd_set_error (bfd_error_bad_value);
sym, NULL);
_bfd_error_handler
/* xgettext:c-format */
- (_("%B: relocation %s against STT_GNU_IFUNC "
- "symbol `%s' has non-zero addend: %Ld"),
- input_bfd, howto->name, name, rel->r_addend);
+ (_("%pB: relocation %s against STT_GNU_IFUNC "
+ "symbol `%s' has non-zero addend: %" PRId64),
+ input_bfd, howto->name, name, (int64_t) rel->r_addend);
bfd_set_error (bfd_error_bad_value);
return bfd_reloc_notsupported;
}
case BFD_RELOC_AARCH64_NN:
/* When generating a shared object or relocatable executable, these
- relocations are copied into the output file to be resolved at
- run time. */
+ relocations are copied into the output file to be resolved at
+ run time. */
if (((bfd_link_pic (info)
|| globals->root.is_relocatable_executable)
&& (input_section->flags & SEC_ALLOC)
case BFD_RELOC_AARCH64_ADR_HI21_PCREL:
case BFD_RELOC_AARCH64_ADR_LO21_PCREL:
case BFD_RELOC_AARCH64_LD_LO19_PCREL:
+ case BFD_RELOC_AARCH64_MOVW_PREL_G0:
+ case BFD_RELOC_AARCH64_MOVW_PREL_G0_NC:
+ case BFD_RELOC_AARCH64_MOVW_PREL_G1:
+ case BFD_RELOC_AARCH64_MOVW_PREL_G1_NC:
+ case BFD_RELOC_AARCH64_MOVW_PREL_G2:
+ case BFD_RELOC_AARCH64_MOVW_PREL_G2_NC:
+ case BFD_RELOC_AARCH64_MOVW_PREL_G3:
if (bfd_link_pic (info)
&& (input_section->flags & SEC_ALLOC) != 0
&& (input_section->flags & SEC_READONLY) != 0
_bfd_error_handler
/* xgettext:c-format */
- (_("%B: relocation %s against symbol `%s' which may bind "
+ (_("%pB: relocation %s against symbol `%s' which may bind "
"externally can not be used when making a shared object; "
"recompile with -fPIC"),
input_bfd, elfNN_aarch64_howto_table[howto_index].name,
int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
_bfd_error_handler
/* xgettext:c-format */
- (_("%B: Local symbol descriptor table be NULL when applying "
+ (_("%pB: Local symbol descriptor table be NULL when applying "
"relocation %s against local symbol"),
input_bfd, elfNN_aarch64_howto_table[howto_index].name);
abort ();
BFD_ASSERT (globals && input_bfd && contents && rel);
- switch (elfNN_aarch64_bfd_reloc_from_type (r_type))
+ switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type))
{
case BFD_RELOC_AARCH64_TLSDESC_ADR_PAGE21:
case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
if (is_local)
{
/* Tiny TLSDESC->LE relaxation:
- ldr x1, :tlsdesc:var => movz R0, #:tprel_g1:var
- adr x0, :tlsdesc:var => movk R0, #:tprel_g0_nc:var
+ ldr x1, :tlsdesc:var => movz R0, #:tprel_g1:var
+ adr x0, :tlsdesc:var => movk R0, #:tprel_g0_nc:var
.tlsdesccall var
- blr x1 => nop
+ blr x1 => nop
Where R is x for LP64, and w for ILP32. */
BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21));
else
{
/* Tiny TLSDESC->IE relaxation:
- ldr x1, :tlsdesc:var => ldr x0, :gottprel:var
- adr x0, :tlsdesc:var => nop
+ ldr x1, :tlsdesc:var => ldr x0, :gottprel:var
+ adr x0, :tlsdesc:var => nop
.tlsdesccall var
- blr x1 => nop
+ blr x1 => nop
*/
BFD_ASSERT (ELFNN_R_TYPE (rel[1].r_info) == AARCH64_R (TLSDESC_ADR_PREL21));
BFD_ASSERT (ELFNN_R_TYPE (rel[2].r_info) == AARCH64_R (TLSDESC_CALL));
if (is_local)
{
/* Tiny GD->LE relaxation:
- adr x0, :tlsgd:var => mrs x1, tpidr_el0
- bl __tls_get_addr => add R0, R1, #:tprel_hi12:x, lsl #12
- nop => add R0, R0, #:tprel_lo12_nc:x
+ adr x0, :tlsgd:var => mrs x1, tpidr_el0
+ bl __tls_get_addr => add R0, R1, #:tprel_hi12:x, lsl #12
+ nop => add R0, R0, #:tprel_lo12_nc:x
Where R is x for LP64, and x for Ilp32. */
else
{
/* Tiny GD->IE relaxation:
- adr x0, :tlsgd:var => ldr R0, :gottprel:var
- bl __tls_get_addr => mrs x1, tpidr_el0
- nop => add R0, R0, R1
+ adr x0, :tlsgd:var => ldr R0, :gottprel:var
+ bl __tls_get_addr => mrs x1, tpidr_el0
+ nop => add R0, R0, R1
Where R is x for LP64, and w for Ilp32. */
if (is_local)
{
/* Large GD->LE relaxation:
- movz x0, #:tlsgd_g1:var => movz x0, #:tprel_g2:var, lsl #32
+ movz x0, #:tlsgd_g1:var => movz x0, #:tprel_g2:var, lsl #32
movk x0, #:tlsgd_g0_nc:var => movk x0, #:tprel_g1_nc:var, lsl #16
- add x0, gp, x0 => movk x0, #:tprel_g0_nc:var
- bl __tls_get_addr => mrs x1, tpidr_el0
- nop => add x0, x0, x1
+ add x0, gp, x0 => movk x0, #:tprel_g0_nc:var
+ bl __tls_get_addr => mrs x1, tpidr_el0
+ nop => add x0, x0, x1
*/
rel[2].r_info = ELFNN_R_INFO (ELFNN_R_SYM (rel->r_info),
AARCH64_R (TLSLE_MOVW_TPREL_G0_NC));
else
{
/* Large GD->IE relaxation:
- movz x0, #:tlsgd_g1:var => movz x0, #:gottprel_g1:var, lsl #16
+ movz x0, #:tlsgd_g1:var => movz x0, #:gottprel_g1:var, lsl #16
movk x0, #:tlsgd_g0_nc:var => movk x0, #:gottprel_g0_nc:var
- add x0, gp, x0 => ldr x0, [gp, x0]
- bl __tls_get_addr => mrs x1, tpidr_el0
- nop => add x0, x0, x1
+ add x0, gp, x0 => ldr x0, [gp, x0]
+ bl __tls_get_addr => mrs x1, tpidr_el0
+ nop => add x0, x0, x1
*/
rel[2].r_info = ELFNN_R_INFO (STN_UNDEF, R_AARCH64_NONE);
bfd_putl32 (0xd2a80000, contents + rel->r_offset + 0);
if (is_local)
{
/* GD->LE relaxation
- add x0, #:tlsgd_lo12:var => movk R0, :tprel_g0_nc:var
- bl __tls_get_addr => mrs x1, tpidr_el0
- nop => add R0, R1, R0
+ add x0, #:tlsgd_lo12:var => movk R0, :tprel_g0_nc:var
+ bl __tls_get_addr => mrs x1, tpidr_el0
+ nop => add R0, R1, R0
Where R is x for lp64 mode, and w for ILP32 mode. */
else
{
/* GD->IE relaxation
- ADD x0, #:tlsgd_lo12:var => ldr R0, [x0, #:gottprel_lo12:var]
- BL __tls_get_addr => mrs x1, tpidr_el0
+ ADD x0, #:tlsgd_lo12:var => ldr R0, [x0, #:gottprel_lo12:var]
+ BL __tls_get_addr => mrs x1, tpidr_el0
R_AARCH64_CALL26
- NOP => add R0, R1, R0
+ NOP => add R0, R1, R0
Where R is x for lp64 mode, and w for ilp32 mode. */
case BFD_RELOC_AARCH64_TLSDESC_ADD_LO12:
case BFD_RELOC_AARCH64_TLSDESC_CALL:
/* GD->IE/LE relaxation:
- add x0, x0, #:tlsdesc_lo12:var => nop
- blr xd => nop
+ add x0, x0, #:tlsdesc_lo12:var => nop
+ blr xd => nop
*/
bfd_putl32 (INSN_NOP, contents + rel->r_offset);
return bfd_reloc_ok;
case BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21:
/* IE->LE relaxation:
- adrp xd, :gottprel:var => movz Rd, :tprel_g1:var
+ adrp xd, :gottprel:var => movz Rd, :tprel_g1:var
Where R is x for lp64 mode, and w for ILP32 mode. */
if (is_local)
case BFD_RELOC_AARCH64_TLSIE_LDNN_GOTTPREL_LO12_NC:
/* IE->LE relaxation:
- ldr xd, [xm, #:gottprel_lo12:var] => movk Rd, :tprel_g0_nc:var
+ ldr xd, [xm, #:gottprel_lo12:var] => movk Rd, :tprel_g0_nc:var
Where R is x for lp64 mode, and w for ILP32 mode. */
if (is_local)
r_symndx = ELFNN_R_SYM (rel->r_info);
r_type = ELFNN_R_TYPE (rel->r_info);
- howto = bfd_reloc.howto = elfNN_aarch64_howto_from_type (r_type);
+ bfd_reloc.howto = elfNN_aarch64_howto_from_type (input_bfd, r_type);
+ howto = bfd_reloc.howto;
if (howto == NULL)
return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
_bfd_error_handler
((sym_type == STT_TLS
/* xgettext:c-format */
- ? _("%B(%A+%#Lx): %s used with TLS symbol %s")
+ ? _("%pB(%pA+%#" PRIx64 "): %s used with TLS symbol %s")
/* xgettext:c-format */
- : _("%B(%A+%#Lx): %s used with non-TLS symbol %s")),
+ : _("%pB(%pA+%#" PRIx64 "): %s used with non-TLS symbol %s")),
input_bfd,
- input_section, rel->r_offset, howto->name, name);
+ input_section, (uint64_t) rel->r_offset, howto->name, name);
}
/* We relax only if we can see that there can be a valid transition
- from a reloc type to another.
- We call elfNN_aarch64_final_link_relocate unless we're completely
- done, i.e., the relaxation produced the final output we want. */
+ from a reloc type to another.
+ We call elfNN_aarch64_final_link_relocate unless we're completely
+ done, i.e., the relaxation produced the final output we want. */
relaxed_bfd_r_type = aarch64_tls_transition (input_bfd, info, r_type,
h, r_symndx);
r = bfd_reloc_continue;
/* There may be multiple consecutive relocations for the
- same offset. In that case we are supposed to treat the
- output of each relocation as the addend for the next. */
+ same offset. In that case we are supposed to treat the
+ output of each relocation as the addend for the next. */
if (rel + 1 < relend
&& rel->r_offset == rel[1].r_offset
&& ELFNN_R_TYPE (rel[1].r_info) != R_AARCH64_NONE
h, &unresolved_reloc,
save_addend, &addend, sym);
- switch (elfNN_aarch64_bfd_reloc_from_type (r_type))
+ switch (elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type))
{
case BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC:
case BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21:
indx = h && h->dynindx != -1 ? h->dynindx : 0;
need_relocs =
- (bfd_link_pic (info) || indx != 0) &&
+ (!bfd_link_executable (info) || indx != 0) &&
(h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak);
bfd_elfNN_swap_reloca_out (output_bfd, &rela, loc);
bfd_reloc_code_real_type real_type =
- elfNN_aarch64_bfd_reloc_from_type (r_type);
+ elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type);
if (real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PREL21
|| real_type == BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21
indx = h && h->dynindx != -1 ? h->dynindx : 0;
need_relocs =
- (bfd_link_pic (info) || indx != 0) &&
+ (!bfd_link_executable (info) || indx != 0) &&
(h == NULL
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak);
}
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
- because such sections are not SEC_ALLOC and thus ld.so will
- not process them. */
+ because such sections are not SEC_ALLOC and thus ld.so will
+ not process them. */
if (unresolved_reloc
&& !((input_section->flags & SEC_DEBUGGING) != 0
&& h->def_dynamic)
{
_bfd_error_handler
/* xgettext:c-format */
- (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
- input_bfd, input_section, rel->r_offset, howto->name,
+ (_("%pB(%pA+%#" PRIx64 "): "
+ "unresolvable %s relocation against symbol `%s'"),
+ input_bfd, input_section, (uint64_t) rel->r_offset, howto->name,
h->root.root.string);
return FALSE;
}
if (r != bfd_reloc_ok && r != bfd_reloc_continue)
{
bfd_reloc_code_real_type real_r_type
- = elfNN_aarch64_bfd_reloc_from_type (r_type);
+ = elfNN_aarch64_bfd_reloc_from_type (input_bfd, r_type);
switch (r)
{
if (!elf_flags_init (obfd))
{
/* If the input is the default architecture and had the default
- flags then do not bother setting the flags for the output
- architecture, instead allow future merges to do this. If no
- future merges ever set these flags then they will retain their
- uninitialised values, which surprise surprise, correspond
- to the default values. */
+ flags then do not bother setting the flags for the output
+ architecture, instead allow future merges to do this. If no
+ future merges ever set these flags then they will retain their
+ uninitialised values, which surprise surprise, correspond
+ to the default values. */
if (bfd_get_arch_info (ibfd)->the_default
&& elf_elfheader (ibfd)->e_flags == 0)
return TRUE;
return TRUE;
}
+/* Find dynamic relocs for H that apply to read-only sections. */
+
+static asection *
+readonly_dynrelocs (struct elf_link_hash_entry *h)
+{
+ struct elf_dyn_relocs *p;
+
+ for (p = elf_aarch64_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *s = p->sec->output_section;
+
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ return p->sec;
+ }
+ return NULL;
+}
+
/* Return true if we need copy relocation against EH. */
static bfd_boolean
if (ELIMINATE_COPY_RELOCS)
{
struct elf_aarch64_link_hash_entry *eh;
- /* If we didn't find any dynamic relocs in read-only sections, then
+ /* If we don't find any dynamic relocs in read-only sections, then
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
eh = (struct elf_aarch64_link_hash_entry *) h;
if (!need_copy_relocation_p (eh))
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
{
/* xgettext:c-format */
- _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
+ _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
return FALSE;
}
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
-
- /* PR15323, ref flags aren't set for references in the same
- object. */
- h->root.non_ir_ref_regular = 1;
}
/* Could be done earlier, if h were already available. */
/* It is referenced by a non-shared object. */
h->ref_regular = 1;
- h->root.non_ir_ref_regular = 1;
}
switch (bfd_r_type)
{
+ case BFD_RELOC_AARCH64_16:
+#if ARCH_SIZE == 64
+ case BFD_RELOC_AARCH64_32:
+#endif
+ if (bfd_link_pic (info) && (sec->flags & SEC_ALLOC) != 0)
+ {
+ if (h != NULL
+ /* This is an absolute symbol. It represents a value instead
+ of an address. */
+ && ((h->root.type == bfd_link_hash_defined
+ && bfd_is_abs_section (h->root.u.def.section))
+ /* This is an undefined symbol. */
+ || h->root.type == bfd_link_hash_undefined))
+ break;
+
+ /* For local symbols, defined global symbols in a non-ABS section,
+ it is assumed that the value is an address. */
+ int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: relocation %s against `%s' can not be used when making "
+ "a shared object"),
+ abfd, elfNN_aarch64_howto_table[howto_index].name,
+ (h) ? h->root.root.string : "a local symbol");
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ else
+ break;
+
case BFD_RELOC_AARCH64_MOVW_G0_NC:
case BFD_RELOC_AARCH64_MOVW_G1_NC:
case BFD_RELOC_AARCH64_MOVW_G2_NC:
int howto_index = bfd_r_type - BFD_RELOC_AARCH64_RELOC_START;
_bfd_error_handler
/* xgettext:c-format */
- (_("%B: relocation %s against `%s' can not be used when making "
+ (_("%pB: relocation %s against `%s' can not be used when making "
"a shared object; recompile with -fPIC"),
abfd, elfNN_aarch64_howto_table[howto_index].name,
(h) ? h->root.root.string : "a local symbol");
0, &sym))
{
/* xgettext:c-format */
- _bfd_error_handler (_("%B symbol number %lu references"
+ _bfd_error_handler (_("%pB symbol number %lu references"
" nonexistent SHT_SYMTAB_SHNDX section"),
abfd, r_symndx);
/* Ideally an error class should be returned here. */
else if (htab->root.dynamic_sections_created && h->plt.refcount > 0)
{
/* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
+ Undefined weak syms won't yet be marked as dynamic. */
if (h->dynindx == -1 && !h->forced_local
&& h->root.type == bfd_link_hash_undefweak)
{
dyn = htab->root.dynamic_sections_created;
/* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
+ Undefined weak syms won't yet be marked as dynamic. */
if (dyn && h->dynindx == -1 && !h->forced_local
&& h->root.type == bfd_link_hash_undefweak)
{
if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
&& (bfd_link_pic (info)
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
+ || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
+ /* Undefined weak symbol in static PIE resolves to 0 without
+ any dynamic relocations. */
+ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
{
htab->root.srelgot->size += RELOC_SIZE (htab);
}
indx = h && h->dynindx != -1 ? h->dynindx : 0;
if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|| h->root.type != bfd_link_hash_undefweak)
- && (bfd_link_pic (info)
+ && (!bfd_link_executable (info)
|| indx != 0
|| WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
{
if (bfd_link_pic (info))
{
/* Relocs that use pc_count are those that appear on a call
- insn, or certain REL relocs that can generated via assembly.
- We want calls to protected symbols to resolve directly to the
- function rather than going via the plt. If people want
- function pointer comparisons to work as expected then they
- should avoid writing weird assembly. */
+ insn, or certain REL relocs that can generated via assembly.
+ We want calls to protected symbols to resolve directly to the
+ function rather than going via the plt. If people want
+ function pointer comparisons to work as expected then they
+ should avoid writing weird assembly. */
if (SYMBOL_CALLS_LOCAL (info, h))
{
struct elf_dyn_relocs **pp;
}
/* Also discard relocs on undefined weak syms with non-default
- visibility. */
+ visibility. */
if (eh->dyn_relocs != NULL && h->root.type == bfd_link_hash_undefweak)
{
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
else if (ELIMINATE_COPY_RELOCS)
{
/* For the non-shared case, discard space for relocs against
- symbols which turn out to need copy relocs or are not
- dynamic. */
+ symbols which turn out to need copy relocs or are not
+ dynamic. */
if (!h->non_got_ref
&& ((h->def_dynamic
return elfNN_aarch64_allocate_ifunc_dynrelocs (h, inf);
}
-/* Find any dynamic relocs that apply to read-only sections. */
+/* Set DF_TEXTREL if we find any dynamic relocs that apply to
+ read-only sections. */
static bfd_boolean
-aarch64_readonly_dynrelocs (struct elf_link_hash_entry * h, void * inf)
+maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
{
- struct elf_aarch64_link_hash_entry * eh;
- struct elf_dyn_relocs * p;
+ asection *sec;
- eh = (struct elf_aarch64_link_hash_entry *) h;
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- asection *s = p->sec;
+ if (h->root.type == bfd_link_hash_indirect)
+ return TRUE;
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- {
- struct bfd_link_info *info = (struct bfd_link_info *) inf;
+ sec = readonly_dynrelocs (h);
+ if (sec != NULL)
+ {
+ struct bfd_link_info *info = (struct bfd_link_info *) info_p;
- info->flags |= DF_TEXTREL;
+ info->flags |= DF_TEXTREL;
+ info->callbacks->minfo
+ (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
+ sec->owner, h->root.root.string, sec);
- /* Not an error, just cut short the traversal. */
- return FALSE;
- }
+ /* Not an error, just cut short the traversal. */
+ return FALSE;
}
return TRUE;
}
htab->root.splt->size += PLT_TLSDESC_ENTRY_SIZE;
/* If we're not using lazy TLS relocations, don't generate the
- GOT entry required. */
+ GOT entry required. */
if (!(info->flags & DF_BIND_NOW))
{
htab->dt_tlsdesc_got = htab->root.sgot->size;
continue;
/* Allocate memory for the section contents. We use bfd_zalloc
- here in case unused entries are not reclaimed before the
- section's contents are written out. This should not happen,
- but this way if it does, we get a R_AARCH64_NONE reloc instead
- of garbage. */
+ here in case unused entries are not reclaimed before the
+ section's contents are written out. This should not happen,
+ but this way if it does, we get a R_AARCH64_NONE reloc instead
+ of garbage. */
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
if (s->contents == NULL)
return FALSE;
if (htab->root.dynamic_sections_created)
{
/* Add some entries to the .dynamic section. We fill in the
- values later, in elfNN_aarch64_finish_dynamic_sections, but we
- must add the entries now so that we get the correct size for
- the .dynamic section. The DT_DEBUG entry is filled in by the
- dynamic linker and used by the debugger. */
+ values later, in elfNN_aarch64_finish_dynamic_sections, but we
+ must add the entries now so that we get the correct size for
+ the .dynamic section. The DT_DEBUG entry is filled in by the
+ dynamic linker and used by the debugger. */
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
/* If any dynamic relocs apply to a read-only section,
then we need a DT_TEXTREL entry. */
if ((info->flags & DF_TEXTREL) == 0)
- elf_link_hash_traverse (& htab->root, aarch64_readonly_dynrelocs,
- info);
+ elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
if ((info->flags & DF_TEXTREL) != 0)
{
asection *plt, *gotplt, *relplt;
/* This symbol has an entry in the procedure linkage table. Set
- it up. */
+ it up. */
/* When building a static executable, use .iplt, .igot.plt and
.rela.iplt sections for STT_GNU_IFUNC symbols. */
}
if (h->got.offset != (bfd_vma) - 1
- && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL)
+ && elf_aarch64_hash_entry (h)->got_type == GOT_NORMAL
+ /* Undefined weak symbol in static PIE resolves to 0 without
+ any dynamic relocations. */
+ && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
{
Elf_Internal_Rela rela;
bfd_byte *loc;
/* This symbol has an entry in the global offset table. Set it
- up. */
+ up. */
if (htab->root.sgot == NULL || htab->root.srelgot == NULL)
abort ();
if (bfd_is_abs_section (htab->root.sgotplt->output_section))
{
_bfd_error_handler
- (_("discarded output section: `%A'"), htab->root.sgotplt);
+ (_("discarded output section: `%pA'"), htab->root.sgotplt);
return FALSE;
}
#define ELF_MINPAGESIZE 0x1000
#define ELF_COMMONPAGESIZE 0x1000
-#define bfd_elfNN_close_and_cleanup \
+#define bfd_elfNN_close_and_cleanup \
elfNN_aarch64_close_and_cleanup
-#define bfd_elfNN_bfd_free_cached_info \
+#define bfd_elfNN_bfd_free_cached_info \
elfNN_aarch64_bfd_free_cached_info
#define bfd_elfNN_bfd_is_target_special_symbol \
elfNN_aarch64_is_target_special_symbol
-#define bfd_elfNN_bfd_link_hash_table_create \
+#define bfd_elfNN_bfd_link_hash_table_create \
elfNN_aarch64_link_hash_table_create
#define bfd_elfNN_bfd_merge_private_bfd_data \
#define elf_backend_object_p \
elfNN_aarch64_object_p
-#define elf_backend_output_arch_local_syms \
+#define elf_backend_output_arch_local_syms \
elfNN_aarch64_output_arch_local_syms
#define elf_backend_plt_sym_val \
#define elf_backend_may_use_rel_p 0
#define elf_backend_may_use_rela_p 1
#define elf_backend_default_use_rela_p 1
-#define elf_backend_rela_normal 1
+#define elf_backend_rela_normal 1
#define elf_backend_dtrel_excludes_plt 1
#define elf_backend_got_header_size (GOT_ENTRY_SIZE * 3)
#define elf_backend_default_execstack 0
#define elf_backend_extern_protected_data 1
#define elf_backend_hash_symbol elf_aarch64_hash_symbol
-#undef elf_backend_obj_attrs_section
+#undef elf_backend_obj_attrs_section
#define elf_backend_obj_attrs_section ".ARM.attributes"
#include "elfNN-target.h"
projects / deliverable / binutils-gdb.git / blobdiff