/* BFD support for handling relocation entries.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
Written by Cygnus Support.
/* DO compile in the reloc_code name table from libbfd.h. */
#define _BFD_MAKE_TABLE_bfd_reloc_code_real
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "bfdlink.h"
#include "libbfd.h"
/*
. {* Do not complain on overflow. *}
. complain_overflow_dont,
.
-. {* Complain if the bitfield overflows, whether it is considered
-. as signed or unsigned. *}
+. {* Complain if the value overflows when considered as a signed
+. number one bit larger than the field. ie. A bitfield of N bits
+. is allowed to represent -2**n to 2**n-1. *}
. complain_overflow_bitfield,
.
-. {* Complain if the value overflows when considered as signed
+. {* Complain if the value overflows when considered as a signed
. number. *}
. complain_overflow_signed,
.
bfd_vma fieldmask, addrmask, signmask, ss, a;
bfd_reloc_status_type flag = bfd_reloc_ok;
- a = relocation;
-
/* Note: BITSIZE should always be <= ADDRSIZE, but in case it's not,
we'll be permissive: extra bits in the field mask will
automatically extend the address mask for purposes of the
overflow check. */
fieldmask = N_ONES (bitsize);
+ signmask = ~fieldmask;
addrmask = N_ONES (addrsize) | fieldmask;
+ a = (relocation & addrmask) >> rightshift;;
switch (how)
{
case complain_overflow_signed:
/* If any sign bits are set, all sign bits must be set. That
is, A must be a valid negative address after shifting. */
- a = (a & addrmask) >> rightshift;
signmask = ~ (fieldmask >> 1);
- ss = a & signmask;
- if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
- flag = bfd_reloc_overflow;
- break;
-
- case complain_overflow_unsigned:
- /* We have an overflow if the address does not fit in the field. */
- a = (a & addrmask) >> rightshift;
- if ((a & ~ fieldmask) != 0)
- flag = bfd_reloc_overflow;
- break;
+ /* Fall thru */
case complain_overflow_bitfield:
/* Bitfields are sometimes signed, sometimes unsigned. We
of n bits is allowed to store -2**n to 2**n-1. Thus overflow
if the value has some, but not all, bits set outside the
field. */
- a >>= rightshift;
- ss = a & ~ fieldmask;
- if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & ~ fieldmask))
+ ss = a & signmask;
+ if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
+ flag = bfd_reloc_overflow;
+ break;
+
+ case complain_overflow_unsigned:
+ /* We have an overflow if the address does not fit in the field. */
+ if ((a & signmask) != 0)
flag = bfd_reloc_overflow;
break;
7) if they are different you have to figure out which version is
right. */
relocation -= reloc_entry->addend;
- reloc_entry->addend = 0;
+ /* FIXME: There should be no target specific code here... */
+ if (strcmp (abfd->xvec->name, "coff-z8k") != 0)
+ reloc_entry->addend = 0;
}
else
{
the size of an address. For bitfields, all the bits matter.
See also bfd_check_overflow. */
fieldmask = N_ONES (howto->bitsize);
+ signmask = ~fieldmask;
addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
- a = relocation;
- b = x & howto->src_mask;
+ a = (relocation & addrmask) >> rightshift;
+ b = (x & howto->src_mask & addrmask) >> bitpos;
switch (howto->complain_on_overflow)
{
case complain_overflow_signed:
- a = (a & addrmask) >> rightshift;
-
/* If any sign bits are set, all sign bits must be set.
That is, A must be a valid negative address after
shifting. */
- signmask = ~ (fieldmask >> 1);
+ signmask = ~(fieldmask >> 1);
+ /* Fall thru */
+
+ case complain_overflow_bitfield:
+ /* Much like the signed check, but for a field one bit
+ wider. We allow a bitfield to represent numbers in the
+ range -2**n to 2**n-1, where n is the number of bits in the
+ field. Note that when bfd_vma is 32 bits, a 32-bit reloc
+ can't overflow, which is exactly what we want. */
ss = a & signmask;
if (ss != 0 && ss != ((addrmask >> rightshift) & signmask))
flag = bfd_reloc_overflow;
SRC_MASK has more bits than BITSIZE, we can get into
trouble; we would need to verify that B is in range, as
we do for A above. */
- signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
+ ss = ((~howto->src_mask) >> 1) & howto->src_mask;
+ ss >>= bitpos;
/* Set all the bits above the sign bit. */
- b = (b ^ signmask) - signmask;
-
- b = (b & addrmask) >> bitpos;
+ b = (b ^ ss) - ss;
/* Now we can do the addition. */
sum = a + b;
positive inputs. The test below looks only at the sign
bits, and it really just
SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
- */
- signmask = (fieldmask >> 1) + 1;
- if (((~ (a ^ b)) & (a ^ sum)) & signmask)
- flag = bfd_reloc_overflow;
+ We mask with addrmask here to explicitly allow an address
+ wrap-around. The Linux kernel relies on it, and it is
+ the only way to write assembler code which can run when
+ loaded at a location 0x80000000 away from the location at
+ which it is linked. */
+ if (((~(a ^ b)) & (a ^ sum)) & signmask & addrmask)
+ flag = bfd_reloc_overflow;
break;
case complain_overflow_unsigned:
separate test, we can check for this by or-ing in the
operands when testing for the sum overflowing its final
field. */
- a = (a & addrmask) >> rightshift;
- b = (b & addrmask) >> bitpos;
sum = (a + b) & addrmask;
- if ((a | b | sum) & ~ fieldmask)
- flag = bfd_reloc_overflow;
-
- break;
-
- case complain_overflow_bitfield:
- /* Much like the signed check, but for a field one bit
- wider, and no trimming inputs with addrmask. We allow a
- bitfield to represent numbers in the range -2**n to
- 2**n-1, where n is the number of bits in the field.
- Note that when bfd_vma is 32 bits, a 32-bit reloc can't
- overflow, which is exactly what we want. */
- a >>= rightshift;
-
- signmask = ~ fieldmask;
- ss = a & signmask;
- if (ss != 0 && ss != (((bfd_vma) -1 >> rightshift) & signmask))
- flag = bfd_reloc_overflow;
-
- signmask = ((~ howto->src_mask) >> 1) & howto->src_mask;
- b = (b ^ signmask) - signmask;
-
- b >>= bitpos;
-
- sum = a + b;
-
- /* We mask with addrmask here to explicitly allow an address
- wrap-around. The Linux kernel relies on it, and it is
- the only way to write assembler code which can run when
- loaded at a location 0x80000000 away from the location at
- which it is linked. */
- signmask = fieldmask + 1;
- if (((~ (a ^ b)) & (a ^ sum)) & signmask & addrmask)
+ if ((a | b | sum) & signmask)
flag = bfd_reloc_overflow;
-
break;
default:
switch (size)
{
default:
- case 0:
abort ();
case 1:
bfd_put_8 (input_bfd, x, location);
return flag;
}
+/* Clear a given location using a given howto, by applying a relocation value
+ of zero and discarding any in-place addend. This is used for fixed-up
+ relocations against discarded symbols, to make ignorable debug or unwind
+ information more obvious. */
+
+void
+_bfd_clear_contents (reloc_howto_type *howto,
+ bfd *input_bfd,
+ bfd_byte *location)
+{
+ int size;
+ bfd_vma x = 0;
+
+ /* Get the value we are going to relocate. */
+ size = bfd_get_reloc_size (howto);
+ switch (size)
+ {
+ default:
+ case 0:
+ abort ();
+ case 1:
+ x = bfd_get_8 (input_bfd, location);
+ break;
+ case 2:
+ x = bfd_get_16 (input_bfd, location);
+ break;
+ case 4:
+ x = bfd_get_32 (input_bfd, location);
+ break;
+ case 8:
+#ifdef BFD64
+ x = bfd_get_64 (input_bfd, location);
+#else
+ abort ();
+#endif
+ break;
+ }
+
+ /* Zero out the unwanted bits of X. */
+ x &= ~howto->dst_mask;
+
+ /* Put the relocated value back in the object file. */
+ switch (size)
+ {
+ default:
+ case 0:
+ abort ();
+ case 1:
+ bfd_put_8 (input_bfd, x, location);
+ break;
+ case 2:
+ bfd_put_16 (input_bfd, x, location);
+ break;
+ case 4:
+ bfd_put_32 (input_bfd, x, location);
+ break;
+ case 8:
+#ifdef BFD64
+ bfd_put_64 (input_bfd, x, location);
+#else
+ abort ();
+#endif
+ break;
+ }
+}
+
/*
DOCDD
INODE
howto manager, , typedef arelent, Relocations
-SECTION
+SUBSECTION
The howto manager
When an application wants to create a relocation, but doesn't
ENUMDOC
SPARC TLS relocations
+ENUM
+ BFD_RELOC_SPU_IMM7
+ENUMX
+ BFD_RELOC_SPU_IMM8
+ENUMX
+ BFD_RELOC_SPU_IMM10
+ENUMX
+ BFD_RELOC_SPU_IMM10W
+ENUMX
+ BFD_RELOC_SPU_IMM16
+ENUMX
+ BFD_RELOC_SPU_IMM16W
+ENUMX
+ BFD_RELOC_SPU_IMM18
+ENUMX
+ BFD_RELOC_SPU_PCREL9a
+ENUMX
+ BFD_RELOC_SPU_PCREL9b
+ENUMX
+ BFD_RELOC_SPU_PCREL16
+ENUMX
+ BFD_RELOC_SPU_LO16
+ENUMX
+ BFD_RELOC_SPU_HI16
+ENUMDOC
+ SPU Relocations.
+
ENUM
BFD_RELOC_ALPHA_GPDISP_HI16
ENUMDOC
MIPS ELF relocations.
COMMENT
+ENUM
+ BFD_RELOC_MIPS_COPY
+ENUMX
+ BFD_RELOC_MIPS_JUMP_SLOT
+ENUMDOC
+ MIPS ELF relocations (VxWorks extensions).
+COMMENT
+
ENUM
BFD_RELOC_FRV_LABEL16
ENUMX
BFD_RELOC_386_TLS_DTPOFF32
ENUMX
BFD_RELOC_386_TLS_TPOFF32
+ENUMX
+ BFD_RELOC_386_TLS_GOTDESC
+ENUMX
+ BFD_RELOC_386_TLS_DESC_CALL
+ENUMX
+ BFD_RELOC_386_TLS_DESC
ENUMDOC
i386/elf relocations
BFD_RELOC_X86_64_GOTTPOFF
ENUMX
BFD_RELOC_X86_64_TPOFF32
+ENUMX
+ BFD_RELOC_X86_64_GOTOFF64
+ENUMX
+ BFD_RELOC_X86_64_GOTPC32
+ENUMX
+ BFD_RELOC_X86_64_GOT64
+ENUMX
+ BFD_RELOC_X86_64_GOTPCREL64
+ENUMX
+ BFD_RELOC_X86_64_GOTPC64
+ENUMX
+ BFD_RELOC_X86_64_GOTPLT64
+ENUMX
+ BFD_RELOC_X86_64_PLTOFF64
+ENUMX
+ BFD_RELOC_X86_64_GOTPC32_TLSDESC
+ENUMX
+ BFD_RELOC_X86_64_TLSDESC_CALL
+ENUMX
+ BFD_RELOC_X86_64_TLSDESC
ENUMDOC
x86-64/elf relocations
Thumb 22 bit pc-relative branch. The lowest bit must be zero and is
not stored in the instruction. The 2nd lowest bit comes from a 1 bit
field in the instruction.
+ENUM
+ BFD_RELOC_ARM_PCREL_CALL
+ENUMDOC
+ ARM 26-bit pc-relative branch for an unconditional BL or BLX instruction.
+ENUM
+ BFD_RELOC_ARM_PCREL_JUMP
+ENUMDOC
+ ARM 26-bit pc-relative branch for B or conditional BL instruction.
ENUM
BFD_RELOC_THUMB_PCREL_BRANCH7
BFD_RELOC_ARM_PREL31
ENUMDOC
31-bit PC relative address.
+ENUM
+ BFD_RELOC_ARM_MOVW
+ENUMX
+ BFD_RELOC_ARM_MOVT
+ENUMX
+ BFD_RELOC_ARM_MOVW_PCREL
+ENUMX
+ BFD_RELOC_ARM_MOVT_PCREL
+ENUMX
+ BFD_RELOC_ARM_THUMB_MOVW
+ENUMX
+ BFD_RELOC_ARM_THUMB_MOVT
+ENUMX
+ BFD_RELOC_ARM_THUMB_MOVW_PCREL
+ENUMX
+ BFD_RELOC_ARM_THUMB_MOVT_PCREL
+ENUMDOC
+ Low and High halfword relocations for MOVW and MOVT instructions.
ENUM
BFD_RELOC_ARM_JUMP_SLOT
ENUMDOC
ARM thread-local storage relocations.
+ENUM
+ BFD_RELOC_ARM_ALU_PC_G0_NC
+ENUMX
+ BFD_RELOC_ARM_ALU_PC_G0
+ENUMX
+ BFD_RELOC_ARM_ALU_PC_G1_NC
+ENUMX
+ BFD_RELOC_ARM_ALU_PC_G1
+ENUMX
+ BFD_RELOC_ARM_ALU_PC_G2
+ENUMX
+ BFD_RELOC_ARM_LDR_PC_G0
+ENUMX
+ BFD_RELOC_ARM_LDR_PC_G1
+ENUMX
+ BFD_RELOC_ARM_LDR_PC_G2
+ENUMX
+ BFD_RELOC_ARM_LDRS_PC_G0
+ENUMX
+ BFD_RELOC_ARM_LDRS_PC_G1
+ENUMX
+ BFD_RELOC_ARM_LDRS_PC_G2
+ENUMX
+ BFD_RELOC_ARM_LDC_PC_G0
+ENUMX
+ BFD_RELOC_ARM_LDC_PC_G1
+ENUMX
+ BFD_RELOC_ARM_LDC_PC_G2
+ENUMX
+ BFD_RELOC_ARM_ALU_SB_G0_NC
+ENUMX
+ BFD_RELOC_ARM_ALU_SB_G0
+ENUMX
+ BFD_RELOC_ARM_ALU_SB_G1_NC
+ENUMX
+ BFD_RELOC_ARM_ALU_SB_G1
+ENUMX
+ BFD_RELOC_ARM_ALU_SB_G2
+ENUMX
+ BFD_RELOC_ARM_LDR_SB_G0
+ENUMX
+ BFD_RELOC_ARM_LDR_SB_G1
+ENUMX
+ BFD_RELOC_ARM_LDR_SB_G2
+ENUMX
+ BFD_RELOC_ARM_LDRS_SB_G0
+ENUMX
+ BFD_RELOC_ARM_LDRS_SB_G1
+ENUMX
+ BFD_RELOC_ARM_LDRS_SB_G2
+ENUMX
+ BFD_RELOC_ARM_LDC_SB_G0
+ENUMX
+ BFD_RELOC_ARM_LDC_SB_G1
+ENUMX
+ BFD_RELOC_ARM_LDC_SB_G2
+ENUMDOC
+ ARM group relocations.
+
ENUM
BFD_RELOC_ARM_IMMEDIATE
ENUMX
BFD_RELOC_ARM_ADRL_IMMEDIATE
ENUMX
BFD_RELOC_ARM_T32_IMMEDIATE
+ENUMX
+ BFD_RELOC_ARM_T32_ADD_IMM
+ENUMX
+ BFD_RELOC_ARM_T32_IMM12
+ENUMX
+ BFD_RELOC_ARM_T32_ADD_PC12
ENUMX
BFD_RELOC_ARM_SHIFT_IMM
ENUMX
- BFD_RELOC_ARM_SMI
+ BFD_RELOC_ARM_SMC
ENUMX
BFD_RELOC_ARM_SWI
ENUMX
BFD_RELOC_ARM_CP_OFF_IMM
ENUMX
BFD_RELOC_ARM_CP_OFF_IMM_S2
+ENUMX
+ BFD_RELOC_ARM_T32_CP_OFF_IMM
+ENUMX
+ BFD_RELOC_ARM_T32_CP_OFF_IMM_S2
ENUMX
BFD_RELOC_ARM_ADR_IMM
ENUMX
stored in the instruction. The high 24 bits are installed in bits 23
through 0.
+ENUM
+ BFD_RELOC_BFIN_16_IMM
+ENUMDOC
+ ADI Blackfin 16 bit immediate absolute reloc.
+ENUM
+ BFD_RELOC_BFIN_16_HIGH
+ENUMDOC
+ ADI Blackfin 16 bit immediate absolute reloc higher 16 bits.
+ENUM
+ BFD_RELOC_BFIN_4_PCREL
+ENUMDOC
+ ADI Blackfin 'a' part of LSETUP.
+ENUM
+ BFD_RELOC_BFIN_5_PCREL
+ENUMDOC
+ ADI Blackfin.
+ENUM
+ BFD_RELOC_BFIN_16_LOW
+ENUMDOC
+ ADI Blackfin 16 bit immediate absolute reloc lower 16 bits.
+ENUM
+ BFD_RELOC_BFIN_10_PCREL
+ENUMDOC
+ ADI Blackfin.
+ENUM
+ BFD_RELOC_BFIN_11_PCREL
+ENUMDOC
+ ADI Blackfin 'b' part of LSETUP.
+ENUM
+ BFD_RELOC_BFIN_12_PCREL_JUMP
+ENUMDOC
+ ADI Blackfin.
+ENUM
+ BFD_RELOC_BFIN_12_PCREL_JUMP_S
+ENUMDOC
+ ADI Blackfin Short jump, pcrel.
+ENUM
+ BFD_RELOC_BFIN_24_PCREL_CALL_X
+ENUMDOC
+ ADI Blackfin Call.x not implemented.
+ENUM
+ BFD_RELOC_BFIN_24_PCREL_JUMP_L
+ENUMDOC
+ ADI Blackfin Long Jump pcrel.
+ENUM
+ BFD_RELOC_BFIN_GOT17M4
+ENUMX
+ BFD_RELOC_BFIN_GOTHI
+ENUMX
+ BFD_RELOC_BFIN_GOTLO
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC_GOT17M4
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC_GOTHI
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC_GOTLO
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC_VALUE
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC_GOTOFF17M4
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC_GOTOFFHI
+ENUMX
+ BFD_RELOC_BFIN_FUNCDESC_GOTOFFLO
+ENUMX
+ BFD_RELOC_BFIN_GOTOFF17M4
+ENUMX
+ BFD_RELOC_BFIN_GOTOFFHI
+ENUMX
+ BFD_RELOC_BFIN_GOTOFFLO
+ENUMDOC
+ ADI Blackfin FD-PIC relocations.
+ENUM
+ BFD_RELOC_BFIN_GOT
+ENUMDOC
+ ADI Blackfin GOT relocation.
+ENUM
+ BFD_RELOC_BFIN_PLTPC
+ENUMDOC
+ ADI Blackfin PLTPC relocation.
+ENUM
+ BFD_ARELOC_BFIN_PUSH
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_CONST
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_ADD
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_SUB
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_MULT
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_DIV
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_MOD
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_LSHIFT
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_RSHIFT
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_AND
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_OR
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_XOR
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_LAND
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_LOR
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_LEN
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_NEG
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_COMP
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_PAGE
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_HWPAGE
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+ENUM
+ BFD_ARELOC_BFIN_ADDR
+ENUMDOC
+ ADI Blackfin arithmetic relocation.
+
ENUM
BFD_RELOC_D10V_10_PCREL_R
ENUMDOC
ENUMDOC
DLX relocs
+ENUM
+ BFD_RELOC_M32C_HI8
+ENUMX
+ BFD_RELOC_M32C_RL_JUMP
+ENUMX
+ BFD_RELOC_M32C_RL_1ADDR
+ENUMX
+ BFD_RELOC_M32C_RL_2ADDR
+ENUMDOC
+ Renesas M16C/M32C Relocations.
+
ENUM
BFD_RELOC_M32R_24
ENUMDOC
ENUMDOC
Motorola Mcore relocations.
+ENUM
+ BFD_RELOC_MEP_8
+ENUMX
+ BFD_RELOC_MEP_16
+ENUMX
+ BFD_RELOC_MEP_32
+ENUMX
+ BFD_RELOC_MEP_PCREL8A2
+ENUMX
+ BFD_RELOC_MEP_PCREL12A2
+ENUMX
+ BFD_RELOC_MEP_PCREL17A2
+ENUMX
+ BFD_RELOC_MEP_PCREL24A2
+ENUMX
+ BFD_RELOC_MEP_PCABS24A2
+ENUMX
+ BFD_RELOC_MEP_LOW16
+ENUMX
+ BFD_RELOC_MEP_HI16U
+ENUMX
+ BFD_RELOC_MEP_HI16S
+ENUMX
+ BFD_RELOC_MEP_GPREL
+ENUMX
+ BFD_RELOC_MEP_TPREL
+ENUMX
+ BFD_RELOC_MEP_TPREL7
+ENUMX
+ BFD_RELOC_MEP_TPREL7A2
+ENUMX
+ BFD_RELOC_MEP_TPREL7A4
+ENUMX
+ BFD_RELOC_MEP_UIMM24
+ENUMX
+ BFD_RELOC_MEP_ADDR24A4
+ENUMX
+ BFD_RELOC_MEP_GNU_VTINHERIT
+ENUMX
+ BFD_RELOC_MEP_GNU_VTENTRY
+ENUMDOC
+ Toshiba Media Processor Relocations.
+COMMENT
+
ENUM
BFD_RELOC_MMIX_GETA
ENUMX
ENUMDOC
This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
of program memory address) into 8 bit immediate value of LDI insn.
+ENUM
+ BFD_RELOC_AVR_MS8_LDI
+ENUMDOC
+ This is a 16 bit reloc for the AVR that stores 8 bit value (most high 8 bit
+ of 32 bit value) into 8 bit immediate value of LDI insn.
ENUM
BFD_RELOC_AVR_LO8_LDI_NEG
ENUMDOC
This is a 16 bit reloc for the AVR that stores negated 8 bit value
(most high 8 bit of program memory address) into 8 bit immediate value
of LDI or SUBI insn.
+ENUM
+ BFD_RELOC_AVR_MS8_LDI_NEG
+ENUMDOC
+ This is a 16 bit reloc for the AVR that stores negated 8 bit value (msb
+ of 32 bit value) into 8 bit immediate value of LDI insn.
ENUM
BFD_RELOC_AVR_LO8_LDI_PM
ENUMDOC
This is a 16 bit reloc for the AVR that stores 8 bit value (usually
command address) into 8 bit immediate value of LDI insn.
+ENUM
+ BFD_RELOC_AVR_LO8_LDI_GS
+ENUMDOC
+ This is a 16 bit reloc for the AVR that stores 8 bit value
+ (command address) into 8 bit immediate value of LDI insn. If the address
+ is beyond the 128k boundary, the linker inserts a jump stub for this reloc
+ in the lower 128k.
ENUM
BFD_RELOC_AVR_HI8_LDI_PM
ENUMDOC
This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
of command address) into 8 bit immediate value of LDI insn.
+ENUM
+ BFD_RELOC_AVR_HI8_LDI_GS
+ENUMDOC
+ This is a 16 bit reloc for the AVR that stores 8 bit value (high 8 bit
+ of command address) into 8 bit immediate value of LDI insn. If the address
+ is beyond the 128k boundary, the linker inserts a jump stub for this reloc
+ below 128k.
ENUM
BFD_RELOC_AVR_HH8_LDI_PM
ENUMDOC
ENUMDOC
Long displacement extension.
+ENUM
+ BFD_RELOC_SCORE_DUMMY1
+ENUMDOC
+ Score relocations
+ENUM
+ BFD_RELOC_SCORE_GPREL15
+ENUMDOC
+ Low 16 bit for load/store
+ENUM
+ BFD_RELOC_SCORE_DUMMY2
+ENUMX
+ BFD_RELOC_SCORE_JMP
+ENUMDOC
+ This is a 24-bit reloc with the right 1 bit assumed to be 0
+ENUM
+ BFD_RELOC_SCORE_BRANCH
+ENUMDOC
+ This is a 19-bit reloc with the right 1 bit assumed to be 0
+ENUM
+ BFD_RELOC_SCORE16_JMP
+ENUMDOC
+ This is a 11-bit reloc with the right 1 bit assumed to be 0
+ENUM
+ BFD_RELOC_SCORE16_BRANCH
+ENUMDOC
+ This is a 8-bit reloc with the right 1 bit assumed to be 0
+ENUM
+ BFD_RELOC_SCORE_GOT15
+ENUMX
+ BFD_RELOC_SCORE_GOT_LO16
+ENUMX
+ BFD_RELOC_SCORE_CALL15
+ENUMX
+ BFD_RELOC_SCORE_DUMMY_HI16
+ENUMDOC
+ Undocumented Score relocs
+
ENUM
BFD_RELOC_IP2K_FR9
ENUMDOC
ENUMDOC
NS CR16C Relocations.
-ENUM
+ENUM
BFD_RELOC_CRX_REL4
ENUMX
BFD_RELOC_CRX_REL8
BFD_RELOC_CRX_SWITCH16
ENUMX
BFD_RELOC_CRX_SWITCH32
-ENUMDOC
+ENUMDOC
NS CRX Relocations.
ENUM
ENUMDOC
Sony Xstormy16 Relocations.
+ENUM
+ BFD_RELOC_RELC
+ENUMDOC
+ Self-describing complex relocations.
+COMMENT
+
+ENUM
+ BFD_RELOC_XC16X_PAG
+ENUMX
+ BFD_RELOC_XC16X_POF
+ENUMX
+ BFD_RELOC_XC16X_SEG
+ENUMX
+ BFD_RELOC_XC16X_SOF
+ENUMDOC
+ Infineon Relocations.
+
ENUM
BFD_RELOC_VAX_GLOB_DAT
ENUMX
BFD_RELOC_VAX_RELATIVE
ENUMDOC
Relocations used by VAX ELF.
-
+
+ENUM
+ BFD_RELOC_MT_PC16
+ENUMDOC
+ Morpho MT - 16 bit immediate relocation.
+ENUM
+ BFD_RELOC_MT_HI16
+ENUMDOC
+ Morpho MT - Hi 16 bits of an address.
+ENUM
+ BFD_RELOC_MT_LO16
+ENUMDOC
+ Morpho MT - Low 16 bits of an address.
+ENUM
+ BFD_RELOC_MT_GNU_VTINHERIT
+ENUMDOC
+ Morpho MT - Used to tell the linker which vtable entries are used.
+ENUM
+ BFD_RELOC_MT_GNU_VTENTRY
+ENUMDOC
+ Morpho MT - Used to tell the linker which vtable entries are used.
+ENUM
+ BFD_RELOC_MT_PCINSN8
+ENUMDOC
+ Morpho MT - 8 bit immediate relocation.
+
ENUM
BFD_RELOC_MSP430_10_PCREL
ENUMX
ENUM
BFD_RELOC_XTENSA_ASM_EXPAND
ENUMDOC
- Xtensa relocation to mark that the assembler expanded the
+ Xtensa relocation to mark that the assembler expanded the
instructions from an original target. The expansion size is
encoded in the reloc size.
ENUM
BFD_RELOC_XTENSA_ASM_SIMPLIFY
ENUMDOC
- Xtensa relocation to mark that the linker should simplify
- assembler-expanded instructions. This is commonly used
- internally by the linker after analysis of a
+ Xtensa relocation to mark that the linker should simplify
+ assembler-expanded instructions. This is commonly used
+ internally by the linker after analysis of a
BFD_RELOC_XTENSA_ASM_EXPAND.
+ENUM
+ BFD_RELOC_Z80_DISP8
+ENUMDOC
+ 8 bit signed offset in (ix+d) or (iy+d).
+
+ENUM
+ BFD_RELOC_Z8K_DISP7
+ENUMDOC
+ DJNZ offset.
+ENUM
+ BFD_RELOC_Z8K_CALLR
+ENUMDOC
+ CALR offset.
+ENUM
+ BFD_RELOC_Z8K_IMM4L
+ENUMDOC
+ 4 bit value.
+
ENDSENUM
BFD_RELOC_UNUSED
CODE_FRAGMENT
/*
FUNCTION
bfd_reloc_type_lookup
+ bfd_reloc_name_lookup
SYNOPSIS
reloc_howto_type *bfd_reloc_type_lookup
(bfd *abfd, bfd_reloc_code_real_type code);
+ reloc_howto_type *bfd_reloc_name_lookup
+ (bfd *abfd, const char *reloc_name);
DESCRIPTION
Return a pointer to a howto structure which, when
return BFD_SEND (abfd, reloc_type_lookup, (abfd, code));
}
+reloc_howto_type *
+bfd_reloc_name_lookup (bfd *abfd, const char *reloc_name)
+{
+ return BFD_SEND (abfd, reloc_name_lookup, (abfd, reloc_name));
+}
+
static reloc_howto_type bfd_howto_32 =
-HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
+HOWTO (0, 00, 2, 32, FALSE, 0, complain_overflow_dont, 0, "VRT32", FALSE, 0xffffffff, 0xffffffff, TRUE);
/*
INTERNAL_FUNCTION
bfd_boolean
bfd_generic_gc_sections (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
return TRUE;
}
for (parent = reloc_vector; *parent != NULL; parent++)
{
char *error_message = NULL;
- bfd_reloc_status_type r =
- bfd_perform_relocation (input_bfd,
- *parent,
- data,
- input_section,
- relocatable ? abfd : NULL,
- &error_message);
+ asymbol *symbol;
+ bfd_reloc_status_type r;
+
+ symbol = *(*parent)->sym_ptr_ptr;
+ if (symbol->section && elf_discarded_section (symbol->section))
+ {
+ bfd_byte *p;
+ 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, p);
+ (*parent)->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
+ (*parent)->addend = 0;
+ (*parent)->howto = &none_howto;
+ r = bfd_reloc_ok;
+ }
+ else
+ r = bfd_perform_relocation (input_bfd,
+ *parent,
+ data,
+ input_section,
+ relocatable ? abfd : NULL,
+ &error_message);
if (relocatable)
{
projects / binutils.git / blobdiff