/* BFD support for handling relocation entries.
- Copyright (C) 1990-2016 Free Software Foundation, Inc.
+ Copyright (C) 1990-2017 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
+#include "bfdver.h"
/*
DOCDD
INODE
return flag;
}
+/* HOWTO describes a relocation, at offset OCTET. Return whether the
+ relocation field is within SECTION of ABFD. */
+
+static bfd_boolean
+reloc_offset_in_range (reloc_howto_type *howto, bfd *abfd,
+ asection *section, bfd_size_type octet)
+{
+ bfd_size_type octet_end = bfd_get_section_limit_octets (abfd, section);
+ bfd_size_type reloc_size = bfd_get_reloc_size (howto);
+
+ /* The reloc field must be contained entirely within the section.
+ Allow zero length fields (marker relocs or NONE relocs where no
+ relocation will be performed) at the end of the section. */
+ return octet <= octet_end && octet + reloc_size <= octet_end;
+}
+
/*
FUNCTION
bfd_perform_relocation
if (howto == NULL)
return bfd_reloc_undefined;
- /* Is the address of the relocation really within the section?
- Include the size of the reloc in the test for out of range addresses.
- PR 17512: file: c146ab8b, 46dff27f, 38e53ebf. */
+ /* Is the address of the relocation really within the section? */
octets = reloc_entry->address * bfd_octets_per_byte (abfd);
- if (octets + bfd_get_reloc_size (howto)
- > bfd_get_section_limit_octets (abfd, input_section))
+ if (!reloc_offset_in_range (howto, abfd, input_section, octets))
return bfd_reloc_outofrange;
/* Work out which section the relocation is targeted at and the
/* Is the address of the relocation really within the section? */
octets = reloc_entry->address * bfd_octets_per_byte (abfd);
- if (octets + bfd_get_reloc_size (howto)
- > bfd_get_section_limit_octets (abfd, input_section))
+ if (!reloc_offset_in_range (howto, abfd, input_section, octets))
return bfd_reloc_outofrange;
/* Work out which section the relocation is targeted at and the
bfd_size_type octets = address * bfd_octets_per_byte (input_bfd);
/* Sanity check the address. */
- if (octets + bfd_get_reloc_size (howto)
- > bfd_get_section_limit_octets (input_bfd, input_section))
+ if (!reloc_offset_in_range (howto, input_bfd, input_section, octets))
return bfd_reloc_outofrange;
/* This function assumes that we are dealing with a basic relocation
BFD_RELOC_PPC_VLE_SDAREL_HA16A
ENUMX
BFD_RELOC_PPC_VLE_SDAREL_HA16D
+ENUMX
+ BFD_RELOC_PPC_16DX_HA
ENUMX
BFD_RELOC_PPC_REL16DX_HA
ENUMX
BFD_RELOC_ARC_S21H_PCREL_PLT
ENUMX
BFD_RELOC_ARC_NPS_CMEM16
+ENUMX
+ BFD_RELOC_ARC_JLI_SECTOFF
ENUMDOC
ARC relocs.
ENUMDOC
This is a 5 bit reloc for the AVR that stores an I/O register
number for the SBIC, SBIS, SBI and CBI instructions
+
+ENUM
+ BFD_RELOC_RISCV_HI20
+ENUMX
+ BFD_RELOC_RISCV_PCREL_HI20
+ENUMX
+ BFD_RELOC_RISCV_PCREL_LO12_I
+ENUMX
+ BFD_RELOC_RISCV_PCREL_LO12_S
+ENUMX
+ BFD_RELOC_RISCV_LO12_I
+ENUMX
+ BFD_RELOC_RISCV_LO12_S
+ENUMX
+ BFD_RELOC_RISCV_GPREL12_I
+ENUMX
+ BFD_RELOC_RISCV_GPREL12_S
+ENUMX
+ BFD_RELOC_RISCV_TPREL_HI20
+ENUMX
+ BFD_RELOC_RISCV_TPREL_LO12_I
+ENUMX
+ BFD_RELOC_RISCV_TPREL_LO12_S
+ENUMX
+ BFD_RELOC_RISCV_TPREL_ADD
+ENUMX
+ BFD_RELOC_RISCV_CALL
+ENUMX
+ BFD_RELOC_RISCV_CALL_PLT
+ENUMX
+ BFD_RELOC_RISCV_ADD8
+ENUMX
+ BFD_RELOC_RISCV_ADD16
+ENUMX
+ BFD_RELOC_RISCV_ADD32
+ENUMX
+ BFD_RELOC_RISCV_ADD64
+ENUMX
+ BFD_RELOC_RISCV_SUB8
+ENUMX
+ BFD_RELOC_RISCV_SUB16
+ENUMX
+ BFD_RELOC_RISCV_SUB32
+ENUMX
+ BFD_RELOC_RISCV_SUB64
+ENUMX
+ BFD_RELOC_RISCV_GOT_HI20
+ENUMX
+ BFD_RELOC_RISCV_TLS_GOT_HI20
+ENUMX
+ BFD_RELOC_RISCV_TLS_GD_HI20
+ENUMX
+ BFD_RELOC_RISCV_JMP
+ENUMX
+ BFD_RELOC_RISCV_TLS_DTPMOD32
+ENUMX
+ BFD_RELOC_RISCV_TLS_DTPREL32
+ENUMX
+ BFD_RELOC_RISCV_TLS_DTPMOD64
+ENUMX
+ BFD_RELOC_RISCV_TLS_DTPREL64
+ENUMX
+ BFD_RELOC_RISCV_TLS_TPREL32
+ENUMX
+ BFD_RELOC_RISCV_TLS_TPREL64
+ENUMX
+ BFD_RELOC_RISCV_ALIGN
+ENUMX
+ BFD_RELOC_RISCV_RVC_BRANCH
+ENUMX
+ BFD_RELOC_RISCV_RVC_JUMP
+ENUMX
+ BFD_RELOC_RISCV_RVC_LUI
+ENUMX
+ BFD_RELOC_RISCV_GPREL_I
+ENUMX
+ BFD_RELOC_RISCV_GPREL_S
+ENUMX
+ BFD_RELOC_RISCV_TPREL_I
+ENUMX
+ BFD_RELOC_RISCV_TPREL_S
+ENUMX
+ BFD_RELOC_RISCV_RELAX
+ENUMX
+ BFD_RELOC_RISCV_CFA
+ENUMX
+ BFD_RELOC_RISCV_SUB6
+ENUMX
+ BFD_RELOC_RISCV_SET6
+ENUMX
+ BFD_RELOC_RISCV_SET8
+ENUMX
+ BFD_RELOC_RISCV_SET16
+ENUMX
+ BFD_RELOC_RISCV_SET32
+ENUMX
+ BFD_RELOC_RISCV_32_PCREL
+ENUMDOC
+ RISC-V relocations.
+
ENUM
BFD_RELOC_RL78_NEG8
ENUMX
ENUMDOC
Relocations used by the Altera Nios II core.
+ENUM
+ BFD_RELOC_PRU_U16
+ENUMDOC
+ PRU LDI 16-bit unsigned data-memory relocation.
+ENUM
+ BFD_RELOC_PRU_U16_PMEMIMM
+ENUMDOC
+ PRU LDI 16-bit unsigned instruction-memory relocation.
+ENUM
+ BFD_RELOC_PRU_LDI32
+ENUMDOC
+ PRU relocation for two consecutive LDI load instructions that load a
+ 32 bit value into a register. If the higher bits are all zero, then
+ the second instruction may be relaxed.
+ENUM
+ BFD_RELOC_PRU_S10_PCREL
+ENUMDOC
+ PRU QBBx 10-bit signed PC-relative relocation.
+ENUM
+ BFD_RELOC_PRU_U8_PCREL
+ENUMDOC
+ PRU 8-bit unsigned relocation used for the LOOP instruction.
+ENUM
+ BFD_RELOC_PRU_32_PMEM
+ENUMX
+ BFD_RELOC_PRU_16_PMEM
+ENUMDOC
+ PRU Program Memory relocations. Used to convert from byte addressing to
+ 32-bit word addressing.
+ENUM
+ BFD_RELOC_PRU_GNU_DIFF8
+ENUMX
+ BFD_RELOC_PRU_GNU_DIFF16
+ENUMX
+ BFD_RELOC_PRU_GNU_DIFF32
+ENUMX
+ BFD_RELOC_PRU_GNU_DIFF16_PMEM
+ENUMX
+ BFD_RELOC_PRU_GNU_DIFF32_PMEM
+ENUMDOC
+ PRU 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
+ second symbol so the linker can determine whether to adjust the field
+ value. The PMEM variants encode the word difference, instead of byte
+ difference between symbols.
+
ENUM
BFD_RELOC_IQ2000_OFFSET_16
ENUMX
ENUMDOC
Unsigned 12 bit byte offset for 64 bit load/store from the page of
the GOT entry for this symbol. Used in conjunction with
- BFD_RELOC_AARCH64_ADR_GOTPAGE. Valid in LP64 ABI only.
+ BFD_RELOC_AARCH64_ADR_GOT_PAGE. Valid in LP64 ABI only.
ENUM
BFD_RELOC_AARCH64_LD32_GOT_LO12_NC
ENUMDOC
Unsigned 12 bit byte offset for 32 bit load/store from the page of
the GOT entry for this symbol. Used in conjunction with
- BFD_RELOC_AARCH64_ADR_GOTPAGE. Valid in ILP32 ABI only.
+ BFD_RELOC_AARCH64_ADR_GOT_PAGE. Valid in ILP32 ABI only.
ENUM
BFD_RELOC_AARCH64_MOVW_GOTOFF_G0_NC
ENUMDOC
ENUMDOC
AArch64 TLS DESC relocation.
ENUM
- BFD_RELOC_AARCH64_TLSDESC_LD64_LO12_NC
+ BFD_RELOC_AARCH64_TLSDESC_LD64_LO12
ENUMDOC
AArch64 TLS DESC relocation.
ENUM
ENUMDOC
AArch64 TLS DESC relocation.
ENUM
- BFD_RELOC_AARCH64_TLSDESC_ADD_LO12_NC
+ BFD_RELOC_AARCH64_TLSDESC_ADD_LO12
ENUMDOC
AArch64 TLS DESC relocation.
ENUM
ENUMDOC
Visium Relocations.
+ENUM
+ BFD_RELOC_WASM32_LEB128
+ENUMX
+ BFD_RELOC_WASM32_LEB128_GOT
+ENUMX
+ BFD_RELOC_WASM32_LEB128_GOT_CODE
+ENUMX
+ BFD_RELOC_WASM32_LEB128_PLT
+ENUMX
+ BFD_RELOC_WASM32_PLT_INDEX
+ENUMX
+ BFD_RELOC_WASM32_ABS32_CODE
+ENUMX
+ BFD_RELOC_WASM32_COPY
+ENUMX
+ BFD_RELOC_WASM32_CODE_POINTER
+ENUMX
+ BFD_RELOC_WASM32_INDEX
+ENUMX
+ BFD_RELOC_WASM32_PLT_SIG
+ENUMDOC
+ WebAssembly relocations.
+
ENDSENUM
BFD_RELOC_UNUSED
CODE_FRAGMENT
{
case 64:
BFD_FAIL ();
+ break;
case 32:
return &bfd_howto_32;
case 16:
BFD_FAIL ();
+ break;
default:
BFD_FAIL ();
}
+ break;
default:
BFD_FAIL ();
}
{
if (flaginfo != NULL)
{
- (*_bfd_error_handler) (_("INPUT_SECTION_FLAGS are not supported.\n"));
+ _bfd_error_handler (_("INPUT_SECTION_FLAGS are not supported.\n"));
return FALSE;
}
return TRUE;
if (!bfd_get_full_section_contents (input_bfd, input_section, &data))
return NULL;
+ if (data == NULL)
+ return NULL;
+
if (reloc_size == 0)
return data;
if (symbol == NULL)
{
link_info->callbacks->einfo
+ /* xgettext:c-format */
(_("%X%P: %B(%A): error: relocation for offset %V has no value\n"),
abfd, input_section, (* parent)->address);
goto error_return;
complete binaries. Do not abort, but issue an error
message instead. */
link_info->callbacks->einfo
+ /* xgettext:c-format */
(_("%X%P: %B(%A): relocation \"%R\" goes out of range\n"),
abfd, input_section, * parent);
goto error_return;
This error can result when processing a corrupt binary.
Do not abort. Issue an error message instead. */
link_info->callbacks->einfo
+ /* xgettext:c-format */
(_("%X%P: %B(%A): relocation \"%R\" is not supported\n"),
abfd, input_section, * parent);
goto error_return;
/* PR 17512; file: 90c2a92e.
Report unexpected results, without aborting. */
link_info->callbacks->einfo
+ /* xgettext:c-format */
(_("%X%P: %B(%A): relocation \"%R\" returns an unrecognized value %x\n"),
abfd, input_section, * parent, r);
break;
free (reloc_vector);
return NULL;
}
+
+/*
+INTERNAL_FUNCTION
+ _bfd_generic_set_reloc
+
+SYNOPSIS
+ void _bfd_generic_set_reloc
+ (bfd *abfd,
+ sec_ptr section,
+ arelent **relptr,
+ unsigned int count);
+
+DESCRIPTION
+ Installs a new set of internal relocations in SECTION.
+*/
+
+void
+_bfd_generic_set_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ sec_ptr section,
+ arelent **relptr,
+ unsigned int count)
+{
+ section->orelocation = relptr;
+ section->reloc_count = count;
+}
+
+/*
+INTERNAL_FUNCTION
+ _bfd_unrecognized_reloc
+
+SYNOPSIS
+ bfd_boolean _bfd_unrecognized_reloc
+ (bfd * abfd,
+ sec_ptr section,
+ unsigned int r_type);
+
+DESCRIPTION
+ Reports an unrecognized reloc.
+ Written as a function in order to reduce code duplication.
+ Returns FALSE so that it can be called from a return statement.
+*/
+
+bfd_boolean
+_bfd_unrecognized_reloc (bfd * abfd, sec_ptr section, unsigned int r_type)
+{
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%B: unrecognized relocation (%#x) in section `%A'"),
+ abfd, r_type, section);
+
+ /* PR 21803: Suggest the most likely cause of this error. */
+ _bfd_error_handler (_("Is this version of the linker - %s - out of date ?"),
+ BFD_VERSION_STRING);
+
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+}
projects / thirdparty / binutils-gdb.git / blobdiff