/* BFD support for handling relocation entries.
- Copyright (C) 1990-2018 Free Software Foundation, Inc.
+ Copyright (C) 1990-2020 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
. bfd *, char **);
.
. {* The textual name of the relocation type. *}
-. char *name;
+. const char *name;
.};
.
*/
return bfd_reloc_undefined;
/* Is the address of the relocation really within the section? */
- octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+ octets = reloc_entry->address * bfd_octets_per_byte (abfd, input_section);
if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets))
return bfd_reloc_outofrange;
else
output_base = reloc_target_output_section->vma;
- relocation += output_base + symbol->section->output_offset;
+ output_base += symbol->section->output_offset;
+
+ /* If symbol addresses are in octets, convert to bytes. */
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && (symbol->section->flags & SEC_ELF_OCTETS))
+ output_base *= bfd_octets_per_byte (abfd, input_section);
+
+ relocation += output_base;
/* Add in supplied addend. */
relocation += reloc_entry->addend;
it will have been checked in `bfd_perform_relocation already'. */
/* Is the address of the relocation really within the section? */
- octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+ octets = reloc_entry->address * bfd_octets_per_byte (abfd, input_section);
if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets))
return bfd_reloc_outofrange;
else
output_base = reloc_target_output_section->vma;
- relocation += output_base + symbol->section->output_offset;
+ output_base += symbol->section->output_offset;
+
+ /* If symbol addresses are in octets, convert to bytes. */
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && (symbol->section->flags & SEC_ELF_OCTETS))
+ output_base *= bfd_octets_per_byte (abfd, input_section);
+
+ relocation += output_base;
/* Add in supplied addend. */
relocation += reloc_entry->addend;
bfd_vma addend)
{
bfd_vma relocation;
- bfd_size_type octets = address * bfd_octets_per_byte (input_bfd);
+ bfd_size_type octets = (address
+ * bfd_octets_per_byte (input_bfd, input_section));
/* Sanity check the address. */
if (!bfd_reloc_offset_in_range (howto, input_bfd, input_section, octets))
}
return _bfd_relocate_contents (howto, input_bfd, relocation,
- contents
- + address * bfd_octets_per_byte (input_bfd));
+ contents + octets);
}
/* Relocate a given location using a given value and howto. */
relocations against discarded symbols, to make ignorable debug or unwind
information more obvious. */
-void
+bfd_reloc_status_type
_bfd_clear_contents (reloc_howto_type *howto,
bfd *input_bfd,
asection *input_section,
- bfd_byte *location)
+ bfd_byte *buf,
+ bfd_vma off)
{
bfd_vma x;
+ bfd_byte *location;
+
+ if (!bfd_reloc_offset_in_range (howto, input_bfd, input_section, off))
+ return bfd_reloc_outofrange;
/* Get the value we are going to relocate. */
+ location = buf + off;
x = read_reloc (input_bfd, location, howto);
/* Zero out the unwanted bits of X. */
/* For a range list, use 1 instead of 0 as placeholder. 0
would terminate the list, hiding any later entries. */
- if (strcmp (bfd_get_section_name (input_bfd, input_section),
- ".debug_ranges") == 0
+ if (strcmp (bfd_section_name (input_section), ".debug_ranges") == 0
&& (howto->dst_mask & 1) != 0)
x |= 1;
/* Put the relocated value back in the object file. */
write_reloc (input_bfd, x, location, howto);
+ return bfd_reloc_ok;
}
/*
BFD_RELOC_PPC64_ENTRY
ENUMX
BFD_RELOC_PPC64_REL24_NOTOC
+ENUMX
+ BFD_RELOC_PPC64_D34
+ENUMX
+ BFD_RELOC_PPC64_D34_LO
+ENUMX
+ BFD_RELOC_PPC64_D34_HI30
+ENUMX
+ BFD_RELOC_PPC64_D34_HA30
+ENUMX
+ BFD_RELOC_PPC64_PCREL34
+ENUMX
+ BFD_RELOC_PPC64_GOT_PCREL34
+ENUMX
+ BFD_RELOC_PPC64_PLT_PCREL34
+ENUMX
+ BFD_RELOC_PPC64_ADDR16_HIGHER34
+ENUMX
+ BFD_RELOC_PPC64_ADDR16_HIGHERA34
+ENUMX
+ BFD_RELOC_PPC64_ADDR16_HIGHEST34
+ENUMX
+ BFD_RELOC_PPC64_ADDR16_HIGHESTA34
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHER34
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHERA34
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHEST34
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHESTA34
+ENUMX
+ BFD_RELOC_PPC64_D28
+ENUMX
+ BFD_RELOC_PPC64_PCREL28
ENUMDOC
Power(rs6000) and PowerPC relocations.
BFD_RELOC_PPC64_TPREL16_DS
ENUMX
BFD_RELOC_PPC64_TPREL16_LO_DS
+ENUMX
+ BFD_RELOC_PPC64_TPREL16_HIGH
+ENUMX
+ BFD_RELOC_PPC64_TPREL16_HIGHA
ENUMX
BFD_RELOC_PPC64_TPREL16_HIGHER
ENUMX
BFD_RELOC_PPC64_DTPREL16_DS
ENUMX
BFD_RELOC_PPC64_DTPREL16_LO_DS
+ENUMX
+ BFD_RELOC_PPC64_DTPREL16_HIGH
+ENUMX
+ BFD_RELOC_PPC64_DTPREL16_HIGHA
ENUMX
BFD_RELOC_PPC64_DTPREL16_HIGHER
ENUMX
ENUMX
BFD_RELOC_PPC64_DTPREL16_HIGHESTA
ENUMX
- BFD_RELOC_PPC64_TPREL16_HIGH
+ BFD_RELOC_PPC64_TPREL34
ENUMX
- BFD_RELOC_PPC64_TPREL16_HIGHA
+ BFD_RELOC_PPC64_DTPREL34
ENUMX
- BFD_RELOC_PPC64_DTPREL16_HIGH
+ BFD_RELOC_PPC64_GOT_TLSGD34
ENUMX
- BFD_RELOC_PPC64_DTPREL16_HIGHA
+ BFD_RELOC_PPC64_GOT_TLSLD34
+ENUMX
+ BFD_RELOC_PPC64_GOT_TPREL34
+ENUMX
+ BFD_RELOC_PPC64_GOT_DTPREL34
+ENUMX
+ BFD_RELOC_PPC64_TLS_PCREL
ENUMDOC
PowerPC and PowerPC64 thread-local storage relocations.
ENUMDOC
ARM 26-bit pc-relative branch for B or conditional BL instruction.
+ENUM
+ BFD_RELOC_THUMB_PCREL_BRANCH5
+ENUMDOC
+ ARM 5-bit pc-relative branch for Branch Future instructions.
+
+ENUM
+ BFD_RELOC_THUMB_PCREL_BFCSEL
+ENUMDOC
+ ARM 6-bit pc-relative branch for BFCSEL instruction.
+
+ENUM
+ BFD_RELOC_ARM_THUMB_BF17
+ENUMDOC
+ ARM 17-bit pc-relative branch for Branch Future instructions.
+
+ENUM
+ BFD_RELOC_ARM_THUMB_BF13
+ENUMDOC
+ ARM 13-bit pc-relative branch for BFCSEL instruction.
+
+ENUM
+ BFD_RELOC_ARM_THUMB_BF19
+ENUMDOC
+ ARM 19-bit pc-relative branch for Branch Future Link instruction.
+
+ENUM
+ BFD_RELOC_ARM_THUMB_LOOP12
+ENUMDOC
+ ARM 12-bit pc-relative branch for Low Overhead Loop instructions.
+
ENUM
BFD_RELOC_THUMB_PCREL_BRANCH7
ENUMX
BFD_RELOC_ARM_T32_CP_OFF_IMM
ENUMX
BFD_RELOC_ARM_T32_CP_OFF_IMM_S2
+ENUMX
+ BFD_RELOC_ARM_T32_VLDR_VSTR_OFF_IMM
ENUMX
BFD_RELOC_ARM_ADR_IMM
ENUMX
For ex9 and ifc using.
ENUM
BFD_RELOC_NDS32_TPOFF
+ENUMX
+ BFD_RELOC_NDS32_GOTTPOFF
ENUMX
BFD_RELOC_NDS32_TLS_LE_HI20
ENUMX
BFD_RELOC_NDS32_TLS_LE_LO12
+ENUMX
+ BFD_RELOC_NDS32_TLS_LE_20
+ENUMX
+ BFD_RELOC_NDS32_TLS_LE_15S0
+ENUMX
+ BFD_RELOC_NDS32_TLS_LE_15S1
+ENUMX
+ BFD_RELOC_NDS32_TLS_LE_15S2
ENUMX
BFD_RELOC_NDS32_TLS_LE_ADD
ENUMX
BFD_RELOC_NDS32_TLS_LE_LS
-ENUMX
- BFD_RELOC_NDS32_GOTTPOFF
ENUMX
BFD_RELOC_NDS32_TLS_IE_HI20
+ENUMX
+ BFD_RELOC_NDS32_TLS_IE_LO12
ENUMX
BFD_RELOC_NDS32_TLS_IE_LO12S2
ENUMX
- BFD_RELOC_NDS32_TLS_TPOFF
+ BFD_RELOC_NDS32_TLS_IEGP_HI20
ENUMX
- BFD_RELOC_NDS32_TLS_LE_20
+ BFD_RELOC_NDS32_TLS_IEGP_LO12
ENUMX
- BFD_RELOC_NDS32_TLS_LE_15S0
+ BFD_RELOC_NDS32_TLS_IEGP_LO12S2
ENUMX
- BFD_RELOC_NDS32_TLS_LE_15S1
+ BFD_RELOC_NDS32_TLS_IEGP_LW
ENUMX
- BFD_RELOC_NDS32_TLS_LE_15S2
+ BFD_RELOC_NDS32_TLS_DESC
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_HI20
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_LO12
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_20
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_SDA17S2
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_ADD
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_FUNC
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_CALL
+ENUMX
+ BFD_RELOC_NDS32_TLS_DESC_MEM
+ENUMX
+ BFD_RELOC_NDS32_REMOVE
+ENUMX
+ BFD_RELOC_NDS32_GROUP
ENUMDOC
For TLS.
+ENUM
+ BFD_RELOC_NDS32_LSI
+ENUMDOC
+ For floating load store relaxation.
ENUM
Freescale S12Z reloc.
This is a 15 bit relative address. If the most significant bits are all zero
then it may be truncated to 8 bits.
-ENUM
- BFD_RELOC_16C_NUM08
-ENUMX
- BFD_RELOC_16C_NUM08_C
-ENUMX
- BFD_RELOC_16C_NUM16
-ENUMX
- BFD_RELOC_16C_NUM16_C
-ENUMX
- BFD_RELOC_16C_NUM32
-ENUMX
- BFD_RELOC_16C_NUM32_C
-ENUMX
- BFD_RELOC_16C_DISP04
-ENUMX
- BFD_RELOC_16C_DISP04_C
-ENUMX
- BFD_RELOC_16C_DISP08
-ENUMX
- BFD_RELOC_16C_DISP08_C
-ENUMX
- BFD_RELOC_16C_DISP16
-ENUMX
- BFD_RELOC_16C_DISP16_C
-ENUMX
- BFD_RELOC_16C_DISP24
-ENUMX
- BFD_RELOC_16C_DISP24_C
-ENUMX
- BFD_RELOC_16C_DISP24a
-ENUMX
- BFD_RELOC_16C_DISP24a_C
-ENUMX
- BFD_RELOC_16C_REG04
-ENUMX
- BFD_RELOC_16C_REG04_C
-ENUMX
- BFD_RELOC_16C_REG04a
-ENUMX
- BFD_RELOC_16C_REG04a_C
-ENUMX
- BFD_RELOC_16C_REG14
-ENUMX
- BFD_RELOC_16C_REG14_C
-ENUMX
- BFD_RELOC_16C_REG16
-ENUMX
- BFD_RELOC_16C_REG16_C
-ENUMX
- BFD_RELOC_16C_REG20
-ENUMX
- BFD_RELOC_16C_REG20_C
-ENUMX
- BFD_RELOC_16C_ABS20
-ENUMX
- BFD_RELOC_16C_ABS20_C
-ENUMX
- BFD_RELOC_16C_ABS24
-ENUMX
- BFD_RELOC_16C_ABS24_C
-ENUMX
- BFD_RELOC_16C_IMM04
-ENUMX
- BFD_RELOC_16C_IMM04_C
-ENUMX
- BFD_RELOC_16C_IMM16
-ENUMX
- BFD_RELOC_16C_IMM16_C
-ENUMX
- BFD_RELOC_16C_IMM20
-ENUMX
- BFD_RELOC_16C_IMM20_C
-ENUMX
- BFD_RELOC_16C_IMM24
-ENUMX
- BFD_RELOC_16C_IMM24_C
-ENUMX
- BFD_RELOC_16C_IMM32
-ENUMX
- BFD_RELOC_16C_IMM32_C
-ENUMDOC
- NS CR16C Relocations.
ENUM
BFD_RELOC_CR16_NUM8
ENUM
BFD_RELOC_OR1K_REL_26
+ENUMX
+ BFD_RELOC_OR1K_SLO16
+ENUMX
+ BFD_RELOC_OR1K_PCREL_PG21
+ENUMX
+ BFD_RELOC_OR1K_LO13
+ENUMX
+ BFD_RELOC_OR1K_SLO13
ENUMX
BFD_RELOC_OR1K_GOTPC_HI16
ENUMX
BFD_RELOC_OR1K_GOTPC_LO16
ENUMX
BFD_RELOC_OR1K_GOT16
+ENUMX
+ BFD_RELOC_OR1K_GOT_PG21
+ENUMX
+ BFD_RELOC_OR1K_GOT_LO13
ENUMX
BFD_RELOC_OR1K_PLT26
ENUMX
- BFD_RELOC_OR1K_GOTOFF_HI16
+ BFD_RELOC_OR1K_PLTA26
ENUMX
- BFD_RELOC_OR1K_GOTOFF_LO16
+ BFD_RELOC_OR1K_GOTOFF_SLO16
ENUMX
BFD_RELOC_OR1K_COPY
ENUMX
BFD_RELOC_OR1K_TLS_GD_HI16
ENUMX
BFD_RELOC_OR1K_TLS_GD_LO16
+ENUMX
+ BFD_RELOC_OR1K_TLS_GD_PG21
+ENUMX
+ BFD_RELOC_OR1K_TLS_GD_LO13
ENUMX
BFD_RELOC_OR1K_TLS_LDM_HI16
ENUMX
BFD_RELOC_OR1K_TLS_LDM_LO16
+ENUMX
+ BFD_RELOC_OR1K_TLS_LDM_PG21
+ENUMX
+ BFD_RELOC_OR1K_TLS_LDM_LO13
ENUMX
BFD_RELOC_OR1K_TLS_LDO_HI16
ENUMX
BFD_RELOC_OR1K_TLS_LDO_LO16
ENUMX
BFD_RELOC_OR1K_TLS_IE_HI16
+ENUMX
+ BFD_RELOC_OR1K_TLS_IE_AHI16
ENUMX
BFD_RELOC_OR1K_TLS_IE_LO16
+ENUMX
+ BFD_RELOC_OR1K_TLS_IE_PG21
+ENUMX
+ BFD_RELOC_OR1K_TLS_IE_LO13
ENUMX
BFD_RELOC_OR1K_TLS_LE_HI16
+ENUMX
+ BFD_RELOC_OR1K_TLS_LE_AHI16
ENUMX
BFD_RELOC_OR1K_TLS_LE_LO16
+ENUMX
+ BFD_RELOC_OR1K_TLS_LE_SLO16
ENUMX
BFD_RELOC_OR1K_TLS_TPOFF
ENUMX
ENUMX
BFD_RELOC_XTENSA_DIFF32
ENUMDOC
+ Xtensa relocations for backward compatibility. These have been replaced
+ by BFD_RELOC_XTENSA_PDIFF and BFD_RELOC_XTENSA_NDIFF.
Xtensa relocations to mark the difference of two local symbols.
These are only needed to support linker relaxation and can be ignored
when not relaxing. The field is set to the value of the difference
BFD_RELOC_XTENSA_TLS_CALL
ENUMDOC
Xtensa TLS relocations.
+ENUM
+ BFD_RELOC_XTENSA_PDIFF8
+ENUMX
+ BFD_RELOC_XTENSA_PDIFF16
+ENUMX
+ BFD_RELOC_XTENSA_PDIFF32
+ENUMX
+ BFD_RELOC_XTENSA_NDIFF8
+ENUMX
+ BFD_RELOC_XTENSA_NDIFF16
+ENUMX
+ BFD_RELOC_XTENSA_NDIFF32
+ENUMDOC
+ Xtensa relocations to mark the difference of two local symbols.
+ These are only needed to support linker relaxation and can be ignored
+ when not relaxing. The field is set to the value of the difference
+ assuming no relaxation. The relocation encodes the position of the
+ subtracted symbol so the linker can determine whether to adjust the field
+ value. PDIFF relocations are used for positive differences, NDIFF
+ relocations are used for negative differences. The difference value
+ is treated as unsigned with these relocation types, giving full
+ 8/16 value ranges.
ENUM
BFD_RELOC_Z80_DISP8
ENUMDOC
8 bit signed offset in (ix+d) or (iy+d).
+ENUM
+ BFD_RELOC_Z80_BYTE0
+ENUMDOC
+ First 8 bits of multibyte (32, 24 or 16 bit) value.
+ENUM
+ BFD_RELOC_Z80_BYTE1
+ENUMDOC
+ Second 8 bits of multibyte (32, 24 or 16 bit) value.
+ENUM
+ BFD_RELOC_Z80_BYTE2
+ENUMDOC
+ Third 8 bits of multibyte (32 or 24 bit) value.
+ENUM
+ BFD_RELOC_Z80_BYTE3
+ENUMDOC
+ Fourth 8 bits of multibyte (32 bit) value.
+ENUM
+ BFD_RELOC_Z80_WORD0
+ENUMDOC
+ Lowest 16 bits of multibyte (32 or 24 bit) value.
+ENUM
+ BFD_RELOC_Z80_WORD1
+ENUMDOC
+ Highest 16 bits of multibyte (32 or 24 bit) value.
+ENUM
+ BFD_RELOC_Z80_16_BE
+ENUMDOC
+ Like BFD_RELOC_16 but big-endian.
ENUM
BFD_RELOC_Z8K_DISP7
ENUMDOC
Tilera TILE-Gx Relocations.
+ENUM
+ BFD_RELOC_BPF_64
+ENUMX
+ BFD_RELOC_BPF_32
+ENUMX
+ BFD_RELOC_BPF_16
+ENUMX
+ BFD_RELOC_BPF_DISP16
+ENUMX
+ BFD_RELOC_BPF_DISP32
+ENUMDOC
+ Linux eBPF relocations.
+
ENUM
BFD_RELOC_EPIPHANY_SIMM8
ENUMDOC
ENUMDOC
C-SKY relocations.
+ENUM
+ BFD_RELOC_S12Z_OPR
+ENUMDOC
+ S12Z relocations.
+
ENDSENUM
BFD_RELOC_UNUSED
CODE_FRAGMENT
reloc_howto_type *
bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
{
- switch (code)
- {
- case BFD_RELOC_CTOR:
- /* The type of reloc used in a ctor, which will be as wide as the
- address - so either a 64, 32, or 16 bitter. */
- switch (bfd_arch_bits_per_address (abfd))
- {
- case 64:
- BFD_FAIL ();
- break;
- case 32:
- return &bfd_howto_32;
- case 16:
- BFD_FAIL ();
- break;
- default:
- BFD_FAIL ();
- }
- break;
- default:
- BFD_FAIL ();
- }
+ /* Very limited support is provided for relocs in generic targets
+ such as elf32-little. FIXME: Should we always return NULL? */
+ if (code == BFD_RELOC_CTOR
+ && bfd_arch_bits_per_address (abfd) == 32)
+ return &bfd_howto_32;
return NULL;
}
goto error_return;
}
- if (symbol->section && discarded_section (symbol->section))
+ /* Zap reloc field when the symbol is from a discarded
+ section, ignoring any addend. Do the same when called
+ from bfd_simple_get_relocated_section_contents for
+ undefined symbols in debug sections. This is to keep
+ debug info reasonably sane, in particular so that
+ DW_FORM_ref_addr to another file's .debug_info isn't
+ confused with an offset into the current file's
+ .debug_info. */
+ if ((symbol->section != NULL && discarded_section (symbol->section))
+ || (symbol->section == bfd_und_section_ptr
+ && (input_section->flags & SEC_DEBUGGING) != 0
+ && link_info->input_bfds == link_info->output_bfd))
{
- bfd_byte *p;
+ bfd_vma off;
static reloc_howto_type none_howto
= HOWTO (0, 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL,
"unused", FALSE, 0, 0, FALSE);
- p = data + (*parent)->address * bfd_octets_per_byte (input_bfd);
- _bfd_clear_contents ((*parent)->howto, input_bfd, input_section,
- p);
+ off = ((*parent)->address
+ * bfd_octets_per_byte (input_bfd, input_section));
+ _bfd_clear_contents ((*parent)->howto, input_bfd,
+ input_section, data, off);
(*parent)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
(*parent)->addend = 0;
(*parent)->howto = &none_howto;
free (reloc_vector);
return data;
-error_return:
+ error_return:
free (reloc_vector);
return NULL;
}
projects / deliverable / binutils-gdb.git / blobdiff