/* BFD support for handling relocation entries.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003
+ 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Written by Cygnus Support.
.typedef struct reloc_cache_entry
.{
. {* A pointer into the canonical table of pointers. *}
-. struct symbol_cache_entry **sym_ptr_ptr;
+. struct bfd_symbol **sym_ptr_ptr;
.
. {* offset in section. *}
. bfd_size_type address;
o <<sym_ptr_ptr>>
The symbol table pointer points to a pointer to the symbol
- associated with the relocation request. It is
- the pointer into the table returned by the back end's
- <<get_symtab>> action. @xref{Symbols}. The symbol is referenced
- through a pointer to a pointer so that tools like the linker
- can fix up all the symbols of the same name by modifying only
- one pointer. The relocation routine looks in the symbol and
- uses the base of the section the symbol is attached to and the
- value of the symbol as the initial relocation offset. If the
- symbol pointer is zero, then the section provided is looked up.
+ associated with the relocation request. It is the pointer
+ into the table returned by the back end's
+ <<canonicalize_symtab>> action. @xref{Symbols}. The symbol is
+ referenced through a pointer to a pointer so that tools like
+ the linker can fix up all the symbols of the same name by
+ modifying only one pointer. The relocation routine looks in
+ the symbol and uses the base of the section the symbol is
+ attached to and the value of the symbol as the initial
+ relocation offset. If the symbol pointer is zero, then the
+ section provided is looked up.
o <<address>>
information that libbfd needs to know to tie up a back end's data.
CODE_FRAGMENT
-.struct symbol_cache_entry; {* Forward declaration. *}
+.struct bfd_symbol; {* Forward declaration. *}
.
.struct reloc_howto_struct
.{
.
. {* If this field is non null, then the supplied function is
. called rather than the normal function. This allows really
-. strange relocation methods to be accomodated (e.g., i960 callj
+. strange relocation methods to be accommodated (e.g., i960 callj
. instructions). *}
. bfd_reloc_status_type (*special_function)
-. (bfd *, arelent *, struct symbol_cache_entry *, void *, asection *,
+. (bfd *, arelent *, struct bfd_symbol *, void *, asection *,
. bfd *, char **);
.
. {* The textual name of the relocation type. *}
}
/* Is the address of the relocation really within the section? */
- if (reloc_entry->address > (input_section->_cooked_size
- / bfd_octets_per_byte (abfd)))
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
return bfd_reloc_outofrange;
- /* Work out which section the relocation is targetted at and the
+ /* Work out which section the relocation is targeted at and the
initial relocation command value. */
/* Get symbol value. (Common symbols are special.) */
}
/* Is the address of the relocation really within the section? */
- if (reloc_entry->address > (input_section->_cooked_size
- / bfd_octets_per_byte (abfd)))
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
return bfd_reloc_outofrange;
- /* Work out which section the relocation is targetted at and the
+ /* Work out which section the relocation is targeted at and the
initial relocation command value. */
/* Get symbol value. (Common symbols are special.) */
bfd_vma relocation;
/* Sanity check the address. */
- if (address > input_section->_raw_size)
+ if (address > bfd_get_section_limit (input_bfd, input_section))
return bfd_reloc_outofrange;
/* This function assumes that we are dealing with a basic relocation
The 24-bit relocation is used in some Intel 960 configurations.
+ENUM
+ BFD_RELOC_32_SECREL
+ENUMDOC
+ Section relative relocations. Some targets need this for DWARF2.
+
ENUM
BFD_RELOC_32_GOT_PCREL
ENUMX
BFD_RELOC_LO16
ENUMDOC
Low 16 bits.
-ENUM
- BFD_RELOC_PCREL_HI16_S
-ENUMDOC
- Like BFD_RELOC_HI16_S, but PC relative.
-ENUM
- BFD_RELOC_PCREL_LO16
-ENUMDOC
- Like BFD_RELOC_LO16, but PC relative.
ENUM
BFD_RELOC_MIPS_LITERAL
BFD_RELOC_MIPS_RELGOT
ENUMX
BFD_RELOC_MIPS_JALR
+ENUMDOC
+ MIPS ELF relocations.
COMMENT
+
ENUM
BFD_RELOC_FRV_LABEL16
ENUMX
BFD_RELOC_FRV_GPRELHI
ENUMX
BFD_RELOC_FRV_GPRELLO
+ENUMX
+ BFD_RELOC_FRV_GOT12
+ENUMX
+ BFD_RELOC_FRV_GOTHI
+ENUMX
+ BFD_RELOC_FRV_GOTLO
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC_GOT12
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC_GOTHI
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC_GOTLO
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC_VALUE
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC_GOTOFF12
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC_GOTOFFHI
+ENUMX
+ BFD_RELOC_FRV_FUNCDESC_GOTOFFLO
+ENUMX
+ BFD_RELOC_FRV_GOTOFF12
+ENUMX
+ BFD_RELOC_FRV_GOTOFFHI
+ENUMX
+ BFD_RELOC_FRV_GOTOFFLO
ENUMDOC
Fujitsu Frv Relocations.
COMMENT
-COMMENT
-ENUMDOC
- MIPS ELF relocations.
-COMMENT
ENUM
BFD_RELOC_MN10300_GOTOFF24
ENUMDOC
ENUM
BFD_RELOC_CTOR
ENUMDOC
- The type of reloc used to build a contructor table - at the moment
+ The type of reloc used to build a constructor table - at the moment
probably a 32 bit wide absolute relocation, but the target can choose.
It generally does map to one of the other relocation types.
BFD_RELOC_ARM_OFFSET_IMM
ENUMX
BFD_RELOC_ARM_SHIFT_IMM
+ENUMX
+ BFD_RELOC_ARM_SMI
ENUMX
BFD_RELOC_ARM_SWI
ENUMX
ENUMDOC
These relocs are only used within the ARM assembler. They are not
(at present) written to any object files.
+ENUM
+ BFD_RELOC_ARM_TARGET1
+ENUMDOC
+ Pc-relative or absolute relocation depending on target. Used for
+ entries in .init_array sections.
+ENUM
+ BFD_RELOC_ARM_ROSEGREL32
+ENUMDOC
+ Read-only segment base relative address.
+ENUM
+ BFD_RELOC_ARM_SBREL32
+ENUMDOC
+ Data segment base relative address.
+ENUM
+ BFD_RELOC_ARM_TARGET2
+ENUMDOC
+ This reloc is used for References to RTTI dta from exception handling
+ tables. The actual definition depends on the target. It may be a
+ pc-relative or some form of GOT-indirect relocation.
+ENUM
+ BFD_RELOC_ARM_PREL31
+ENUMDOC
+ 31-bit PC relative address.
ENUM
BFD_RELOC_SH_PCDISP8BY2
ENUMX
BFD_RELOC_SH_PCDISP12BY2
+ENUMX
+ BFD_RELOC_SH_IMM3
+ENUMX
+ BFD_RELOC_SH_IMM3U
+ENUMX
+ BFD_RELOC_SH_DISP12
+ENUMX
+ BFD_RELOC_SH_DISP12BY2
+ENUMX
+ BFD_RELOC_SH_DISP12BY4
+ENUMX
+ BFD_RELOC_SH_DISP12BY8
+ENUMX
+ BFD_RELOC_SH_DISP20
+ENUMX
+ BFD_RELOC_SH_DISP20BY8
ENUMX
BFD_RELOC_SH_IMM4
ENUMX
ENUMDOC
This is a 16-bit reloc containing the small data area offset for use in
add3, load, and store instructions.
+ENUM
+ BFD_RELOC_M32R_GOT24
+ENUMX
+ BFD_RELOC_M32R_26_PLTREL
+ENUMX
+ BFD_RELOC_M32R_COPY
+ENUMX
+ BFD_RELOC_M32R_GLOB_DAT
+ENUMX
+ BFD_RELOC_M32R_JMP_SLOT
+ENUMX
+ BFD_RELOC_M32R_RELATIVE
+ENUMX
+ BFD_RELOC_M32R_GOTOFF
+ENUMX
+ BFD_RELOC_M32R_GOTOFF_HI_ULO
+ENUMX
+ BFD_RELOC_M32R_GOTOFF_HI_SLO
+ENUMX
+ BFD_RELOC_M32R_GOTOFF_LO
+ENUMX
+ BFD_RELOC_M32R_GOTPC24
+ENUMX
+ BFD_RELOC_M32R_GOT16_HI_ULO
+ENUMX
+ BFD_RELOC_M32R_GOT16_HI_SLO
+ENUMX
+ BFD_RELOC_M32R_GOT16_LO
+ENUMX
+ BFD_RELOC_M32R_GOTPC_HI_ULO
+ENUMX
+ BFD_RELOC_M32R_GOTPC_HI_SLO
+ENUMX
+ BFD_RELOC_M32R_GOTPC_LO
+ENUMDOC
+ For PIC.
+
ENUM
BFD_RELOC_V850_9_PCREL
BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
ENUMDOC
This is a 16 bit offset from the short data area pointer, with the
- bits placed non-contigously in the instruction.
+ bits placed non-contiguously in the instruction.
ENUM
BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
ENUMDOC
This is a 16 bit offset from the zero data area pointer, with the
- bits placed non-contigously in the instruction.
+ bits placed non-contiguously in the instruction.
ENUM
BFD_RELOC_V850_CALLT_6_7_OFFSET
ENUMDOC
BFD_RELOC_MMIX_PUSHJ_2
ENUMX
BFD_RELOC_MMIX_PUSHJ_3
+ENUMX
+ BFD_RELOC_MMIX_PUSHJ_STUBBABLE
ENUMDOC
These are relocations for the PUSHJ instruction.
ENUM
included in the output.
VTABLE_INHERIT is a zero-space relocation used to describe to the
- linker the inheritence tree of a C++ virtual function table. The
+ linker the inheritance tree of a C++ virtual function table. The
relocation's symbol should be the parent class' vtable, and the
relocation should be located at the child vtable.
Motorola 68HC11 reloc.
This reloc marks the beginning of a jump/call instruction.
It is used for linker relaxation to correctly identify beginning
- of instruction and change some branchs to use PC-relative
+ of instruction and change some branches to use PC-relative
addressing mode.
ENUM
BFD_RELOC_M68HC11_RL_GROUP
This is a 24-bit reloc that represents the address with a 16-bit
value and a 8-bit page number. The symbol address is transformed
to follow the 16K memory bank of 68HC12 (seen as mapped in the window).
+ENUM
+ BFD_RELOC_M68HC12_5B
+ENUMDOC
+ Motorola 68HC12 reloc.
+ This is the 5 bits of a value.
+
+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_CRX_REL4
+ENUMX
+ BFD_RELOC_CRX_REL8
+ENUMX
+ BFD_RELOC_CRX_REL8_CMP
+ENUMX
+ BFD_RELOC_CRX_REL16
+ENUMX
+ BFD_RELOC_CRX_REL24
+ENUMX
+ BFD_RELOC_CRX_REL32
+ENUMX
+ BFD_RELOC_CRX_REGREL12
+ENUMX
+ BFD_RELOC_CRX_REGREL22
+ENUMX
+ BFD_RELOC_CRX_REGREL28
+ENUMX
+ BFD_RELOC_CRX_REGREL32
+ENUMX
+ BFD_RELOC_CRX_ABS16
+ENUMX
+ BFD_RELOC_CRX_ABS32
+ENUMX
+ BFD_RELOC_CRX_NUM8
+ENUMX
+ BFD_RELOC_CRX_NUM16
+ENUMX
+ BFD_RELOC_CRX_NUM32
+ENUMX
+ BFD_RELOC_CRX_IMM16
+ENUMX
+ BFD_RELOC_CRX_IMM32
+ENUMX
+ BFD_RELOC_CRX_SWITCH8
+ENUMX
+ BFD_RELOC_CRX_SWITCH16
+ENUMX
+ BFD_RELOC_CRX_SWITCH32
+ENUMDOC
+ NS CRX Relocations.
ENUM
BFD_RELOC_CRIS_BDISP8
BFD_RELOC_MSP430_16_PCREL_BYTE
ENUMX
BFD_RELOC_MSP430_16_BYTE
+ENUMX
+ BFD_RELOC_MSP430_2X_PCREL
+ENUMX
+ BFD_RELOC_MSP430_RL_PCREL
ENUMDOC
msp430 specific relocation codes
ENUMDOC
Xtensa relocation used in ELF object files for symbols that may require
PLT entries. Otherwise, this is just a generic 32-bit relocation.
+ENUM
+ BFD_RELOC_XTENSA_DIFF8
+ENUMX
+ BFD_RELOC_XTENSA_DIFF16
+ENUMX
+ BFD_RELOC_XTENSA_DIFF32
+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
+ first symbol so the linker can determine whether to adjust the field
+ value.
+ENUM
+ BFD_RELOC_XTENSA_SLOT0_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT1_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT2_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT3_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT4_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT5_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT6_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT7_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT8_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT9_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT10_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT11_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT12_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT13_OP
+ENUMX
+ BFD_RELOC_XTENSA_SLOT14_OP
+ENUMDOC
+ Generic Xtensa relocations for instruction operands. Only the slot
+ number is encoded in the relocation. The relocation applies to the
+ last PC-relative immediate operand, or if there are no PC-relative
+ immediates, to the last immediate operand.
+ENUM
+ BFD_RELOC_XTENSA_SLOT0_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT1_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT2_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT3_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT4_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT5_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT6_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT7_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT8_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT9_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT10_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT11_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT12_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT13_ALT
+ENUMX
+ BFD_RELOC_XTENSA_SLOT14_ALT
+ENUMDOC
+ Alternate Xtensa relocations. Only the slot is encoded in the
+ relocation. The meaning of these relocations is opcode-specific.
ENUM
BFD_RELOC_XTENSA_OP0
ENUMX
ENUMX
BFD_RELOC_XTENSA_OP2
ENUMDOC
- Generic Xtensa relocations. Only the operand number is encoded
- in the relocation. The details are determined by extracting the
- instruction opcode.
+ Xtensa relocations for backward compatibility. These have all been
+ replaced by BFD_RELOC_XTENSA_SLOT0_OP.
ENUM
BFD_RELOC_XTENSA_ASM_EXPAND
ENUMDOC
DESCRIPTION
Provides default handling for relaxing for back ends which
- don't do relaxing -- i.e., does nothing.
+ don't do relaxing.
*/
bfd_boolean
long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
arelent **reloc_vector = NULL;
long reloc_count;
+ bfd_size_type sz;
if (reloc_size < 0)
goto error_return;
goto error_return;
/* Read in the section. */
- if (!bfd_get_section_contents (input_bfd,
- input_section,
- data,
- 0,
- input_section->_raw_size))
+ sz = input_section->rawsize ? input_section->rawsize : input_section->size;
+ if (!bfd_get_section_contents (input_bfd, input_section, data, 0, sz))
goto error_return;
- /* We're not relaxing the section, so just copy the size info. */
- input_section->_cooked_size = input_section->_raw_size;
- input_section->reloc_done = TRUE;
-
reloc_count = bfd_canonicalize_reloc (input_bfd,
input_section,
reloc_vector,
break;
case bfd_reloc_overflow:
if (!((*link_info->callbacks->reloc_overflow)
- (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
+ (link_info, NULL,
+ bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
(*parent)->howto->name, (*parent)->addend,
input_bfd, input_section, (*parent)->address)))
goto error_return;