/* BFD support for handling relocation entries.
- Copyright (C) 1990-2016 Free Software Foundation, Inc.
+ Copyright (C) 1990-2018 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
.
.typedef enum bfd_reloc_status
.{
-. {* No errors detected. *}
-. bfd_reloc_ok,
+. {* No errors detected. Note - the value 2 is used so that it
+. will not be mistaken for the boolean TRUE or FALSE values. *}
+. bfd_reloc_ok = 2,
.
. {* The relocation was performed, but there was an overflow. *}
. bfd_reloc_overflow,
/*
DESCRIPTION
-
Here is a description of each of the fields within an <<arelent>>:
+ Here is a description of each of the fields within an <<arelent>>:
- o <<sym_ptr_ptr>>
+ 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
- <<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.
+ 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
+ <<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>>
-
The <<address>> field gives the offset in bytes from the base of
- the section data which owns the relocation record to the first
- byte of relocatable information. The actual data relocated
- will be relative to this point; for example, a relocation
- type which modifies the bottom two bytes of a four byte word
- would not touch the first byte pointed to in a big endian
- world.
+ The <<address>> field gives the offset in bytes from the base of
+ the section data which owns the relocation record to the first
+ byte of relocatable information. The actual data relocated
+ will be relative to this point; for example, a relocation
+ type which modifies the bottom two bytes of a four byte word
+ would not touch the first byte pointed to in a big endian
+ world.
o <<addend>>
| return foo[0x12345678];
| }
- Could be compiled into:
+ Could be compiled into:
| linkw fp,#-4
| moveb @@#12345678,d0
| unlk fp
| rts
- This could create a reloc pointing to <<foo>>, but leave the
- offset in the data, something like:
+ This could create a reloc pointing to <<foo>>, but leave the
+ offset in the data, something like:
|RELOCATION RECORDS FOR [.text]:
|offset type value
|0000000c 4e5e ; unlk fp
|0000000e 4e75 ; rts
- Using coff and an 88k, some instructions don't have enough
- space in them to represent the full address range, and
- pointers have to be loaded in two parts. So you'd get something like:
+ Using coff and an 88k, some instructions don't have enough
+ space in them to represent the full address range, and
+ pointers have to be loaded in two parts. So you'd get something like:
| or.u r13,r0,hi16(_foo+0x12345678)
| ld.b r2,r13,lo16(_foo+0x12345678)
| jmp r1
- This should create two relocs, both pointing to <<_foo>>, and with
- 0x12340000 in their addend field. The data would consist of:
+ This should create two relocs, both pointing to <<_foo>>, and with
+ 0x12340000 in their addend field. The data would consist of:
|RELOCATION RECORDS FOR [.text]:
|offset type value
|00000004 1c4d5678 ; ld.b r2,r13,0x5678
|00000008 f400c001 ; jmp r1
- The relocation routine digs out the value from the data, adds
- it to the addend to get the original offset, and then adds the
- value of <<_foo>>. Note that all 32 bits have to be kept around
- somewhere, to cope with carry from bit 15 to bit 16.
+ The relocation routine digs out the value from the data, adds
+ it to the addend to get the original offset, and then adds the
+ value of <<_foo>>. Note that all 32 bits have to be kept around
+ somewhere, to cope with carry from bit 15 to bit 16.
- One further example is the sparc and the a.out format. The
- sparc has a similar problem to the 88k, in that some
- instructions don't have room for an entire offset, but on the
- sparc the parts are created in odd sized lumps. The designers of
- the a.out format chose to not use the data within the section
- for storing part of the offset; all the offset is kept within
- the reloc. Anything in the data should be ignored.
+ One further example is the sparc and the a.out format. The
+ sparc has a similar problem to the 88k, in that some
+ instructions don't have room for an entire offset, but on the
+ sparc the parts are created in odd sized lumps. The designers of
+ the a.out format chose to not use the data within the section
+ for storing part of the offset; all the offset is kept within
+ the reloc. Anything in the data should be ignored.
| save %sp,-112,%sp
| sethi %hi(_foo+0x12345678),%g2
| ret
| restore
- Both relocs contain a pointer to <<foo>>, and the offsets
- contain junk.
+ Both relocs contain a pointer to <<foo>>, and the offsets
+ contain junk.
|RELOCATION RECORDS FOR [.text]:
|offset type value
|0000000c 81c7e008 ; ret
|00000010 81e80000 ; restore
- o <<howto>>
+ o <<howto>>
- The <<howto>> field can be imagined as a
- relocation instruction. It is a pointer to a structure which
- contains information on what to do with all of the other
- information in the reloc record and data section. A back end
- would normally have a relocation instruction set and turn
- relocations into pointers to the correct structure on input -
- but it would be possible to create each howto field on demand.
+ The <<howto>> field can be imagined as a
+ relocation instruction. It is a pointer to a structure which
+ contains information on what to do with all of the other
+ information in the reloc record and data section. A back end
+ would normally have a relocation instruction set and turn
+ relocations into pointers to the correct structure on input -
+ but it would be possible to create each howto field on demand.
*/
/*
SUBSUBSECTION
- <<reloc_howto_type>>
+ <<reloc_howto_type>>
- The <<reloc_howto_type>> is a structure which contains all the
- information that libbfd needs to know to tie up a back end's data.
+ The <<reloc_howto_type>> is a structure which contains all the
+ information that libbfd needs to know to tie up a back end's data.
CODE_FRAGMENT
.struct bfd_symbol; {* Forward declaration. *}
.#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \
. HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \
-. NAME, FALSE, 0, 0, IN)
+. NAME, FALSE, 0, 0, IN)
.
DESCRIPTION
.#define EMPTY_HOWTO(C) \
. HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
-. NULL, FALSE, 0, 0, FALSE)
+. NULL, FALSE, 0, 0, FALSE)
.
DESCRIPTION
Helper routine to turn a symbol into a relocation value.
-.#define HOWTO_PREPARE(relocation, symbol) \
-. { \
-. if (symbol != NULL) \
-. { \
-. if (bfd_is_com_section (symbol->section)) \
-. { \
-. relocation = 0; \
-. } \
-. else \
-. { \
-. relocation = symbol->value; \
-. } \
-. } \
+.#define HOWTO_PREPARE(relocation, symbol) \
+. { \
+. if (symbol != NULL) \
+. { \
+. if (bfd_is_com_section (symbol->section)) \
+. { \
+. relocation = 0; \
+. } \
+. else \
+. { \
+. relocation = symbol->value; \
+. } \
+. } \
. }
.
*/
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. */
+ is, A must be a valid negative address after shifting. */
signmask = ~ (fieldmask >> 1);
/* Fall thru */
return flag;
}
+/*
+FUNCTION
+ bfd_reloc_offset_in_range
+
+SYNOPSIS
+ bfd_boolean bfd_reloc_offset_in_range
+ (reloc_howto_type *howto,
+ bfd *abfd,
+ asection *section,
+ bfd_size_type offset);
+
+DESCRIPTION
+ Returns TRUE if the reloc described by @var{HOWTO} can be
+ applied at @var{OFFSET} octets in @var{SECTION}.
+
+*/
+
+/* HOWTO describes a relocation, at offset OCTET. Return whether the
+ relocation field is within SECTION of ABFD. */
+
+bfd_boolean
+bfd_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
SYNOPSIS
bfd_reloc_status_type bfd_perform_relocation
- (bfd *abfd,
- arelent *reloc_entry,
- void *data,
- asection *input_section,
- bfd *output_bfd,
+ (bfd *abfd,
+ arelent *reloc_entry,
+ void *data,
+ asection *input_section,
+ bfd *output_bfd,
char **error_message);
DESCRIPTION
asymbol *symbol;
symbol = *(reloc_entry->sym_ptr_ptr);
- if (bfd_is_abs_section (symbol->section)
- && output_bfd != NULL)
- {
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
-
- /* PR 17512: file: 0f67f69d. */
- if (howto == NULL)
- return bfd_reloc_undefined;
/* If we are not producing relocatable output, return an error if
the symbol is not defined. An undefined weak symbol is
/* If there is a function supplied to handle this relocation type,
call it. It'll return `bfd_reloc_continue' if further processing
can be done. */
- if (howto->special_function)
+ if (howto && howto->special_function)
{
bfd_reloc_status_type cont;
+
+ /* Note - we do not call bfd_reloc_offset_in_range here as the
+ reloc_entry->address field might actually be valid for the
+ backend concerned. It is up to the special_function itself
+ to call bfd_reloc_offset_in_range if needed. */
cont = howto->special_function (abfd, reloc_entry, symbol, data,
input_section, output_bfd,
error_message);
return cont;
}
- /* 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. */
+ if (bfd_is_abs_section (symbol->section)
+ && output_bfd != NULL)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* PR 17512: file: 0f67f69d. */
+ if (howto == NULL)
+ return bfd_reloc_undefined;
+
+ /* 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 (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets))
return bfd_reloc_outofrange;
/* Work out which section the relocation is targeted at and the
R result
Do this:
- (( i i i i i o o o o o from bfd_get<size>
- and S S S S S) to get the size offset we want
- + r r r r r r r r r r) to get the final value to place
- and D D D D D to chop to right size
+ (( i i i i i o o o o o from bfd_get<size>
+ and S S S S S) to get the size offset we want
+ + r r r r r r r r r r) to get the final value to place
+ and D D D D D to chop to right size
-----------------------
- = A A A A A
+ = A A A A A
And this:
- ( i i i i i o o o o o from bfd_get<size>
- and N N N N N ) get instruction
+ ( i i i i i o o o o o from bfd_get<size>
+ and N N N N N ) get instruction
-----------------------
- = B B B B B
+ = B B B B B
And then:
- ( B B B B B
- or A A A A A)
+ ( B B B B B
+ or A A A A A)
-----------------------
- = R R R R R R R R R R put into bfd_put<size>
+ = R R R R R R R R R R put into bfd_put<size>
*/
#define DOIT(x) \
SYNOPSIS
bfd_reloc_status_type bfd_install_relocation
- (bfd *abfd,
- arelent *reloc_entry,
- void *data, bfd_vma data_start,
- asection *input_section,
+ (bfd *abfd,
+ arelent *reloc_entry,
+ void *data, bfd_vma data_start,
+ asection *input_section,
char **error_message);
DESCRIPTION
bfd_byte *data;
symbol = *(reloc_entry->sym_ptr_ptr);
- if (bfd_is_abs_section (symbol->section))
- {
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
/* If there is a function supplied to handle this relocation type,
call it. It'll return `bfd_reloc_continue' if further processing
can be done. */
- if (howto->special_function)
+ if (howto && howto->special_function)
{
bfd_reloc_status_type cont;
+ /* Note - we do not call bfd_reloc_offset_in_range here as the
+ reloc_entry->address field might actually be valid for the
+ backend concerned. It is up to the special_function itself
+ to call bfd_reloc_offset_in_range if needed. */
/* XXX - The special_function calls haven't been fixed up to deal
with creating new relocations and section contents. */
cont = howto->special_function (abfd, reloc_entry, symbol,
return cont;
}
+ if (bfd_is_abs_section (symbol->section))
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ /* No need to check for howto != NULL if !bfd_is_abs_section as
+ 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);
- if (octets + bfd_get_reloc_size (howto)
- > bfd_get_section_limit_octets (abfd, input_section))
+ if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets))
return bfd_reloc_outofrange;
/* Work out which section the relocation is targeted at and the
R result
Do this:
- (( i i i i i o o o o o from bfd_get<size>
- and S S S S S) to get the size offset we want
- + r r r r r r r r r r) to get the final value to place
- and D D D D D to chop to right size
+ (( i i i i i o o o o o from bfd_get<size>
+ and S S S S S) to get the size offset we want
+ + r r r r r r r r r r) to get the final value to place
+ and D D D D D to chop to right size
-----------------------
- = A A A A A
+ = A A A A A
And this:
- ( i i i i i o o o o o from bfd_get<size>
- and N N N N N ) get instruction
+ ( i i i i i o o o o o from bfd_get<size>
+ and N N N N N ) get instruction
-----------------------
- = B B B B B
+ = B B B B B
And then:
- ( B B B B B
- or A A A A A)
+ ( B B B B B
+ or A A A A A)
-----------------------
- = R R R R R R R R R R put into bfd_put<size>
+ = R R R R R R R R R R put into bfd_put<size>
*/
#define DOIT(x) \
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 (!bfd_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_vma a, b, sum;
/* Get the values to be added together. For signed and unsigned
- relocations, we assume that all values should be truncated to
- the size of an address. For bitfields, all the bits matter.
- See also bfd_check_overflow. */
+ relocations, we assume that all values should be truncated to
+ 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))
flag = bfd_reloc_overflow;
/* We only need this next bit of code if the sign bit of B
- is below the sign bit of A. This would only happen if
- SRC_MASK had fewer bits than BITSIZE. Note that if
- 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. */
+ is below the sign bit of A. This would only happen if
+ SRC_MASK had fewer bits than BITSIZE. Note that if
+ 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. */
ss = ((~howto->src_mask) >> 1) & howto->src_mask;
ss >>= bitpos;
sum = a + b;
/* See if the result has the correct sign. Bits above the
- sign bit are junk now; ignore them. If the sum is
- positive, make sure we did not have all negative inputs;
- if the sum is negative, make sure we did not have all
- positive inputs. The test below looks only at the sign
- bits, and it really just
- SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
+ sign bit are junk now; ignore them. If the sum is
+ positive, make sure we did not have all negative inputs;
+ if the sum is negative, make sure we did not have all
+ positive inputs. The test below looks only at the sign
+ bits, and it really just
+ SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
We mask with addrmask here to explicitly allow an address
wrap-around. The Linux kernel relies on it, and it is
case complain_overflow_unsigned:
/* Checking for an unsigned overflow is relatively easy:
- trim the addresses and add, and trim the result as well.
- Overflow is normally indicated when the result does not
- fit in the field. However, we also need to consider the
- case when, e.g., fieldmask is 0x7fffffff or smaller, an
- input is 0x80000000, and bfd_vma is only 32 bits; then we
- will get sum == 0, but there is an overflow, since the
- inputs did not fit in the field. Instead of doing a
- separate test, we can check for this by or-ing in the
- operands when testing for the sum overflowing its final
- field. */
+ trim the addresses and add, and trim the result as well.
+ Overflow is normally indicated when the result does not
+ fit in the field. However, we also need to consider the
+ case when, e.g., fieldmask is 0x7fffffff or smaller, an
+ input is 0x80000000, and bfd_vma is only 32 bits; then we
+ will get sum == 0, but there is an overflow, since the
+ inputs did not fit in the field. Instead of doing a
+ separate test, we can check for this by or-ing in the
+ operands when testing for the sum overflowing its final
+ field. */
sum = (a + b) & addrmask;
if ((a | b | sum) & signmask)
flag = bfd_reloc_overflow;
away some literal section references. The symbol is ignored (read
as the absolute section symbol), and the "addend" indicates the type
of instruction using the register:
- 1 - "memory" fmt insn
- 2 - byte-manipulation (byte offset reg)
- 3 - jsr (target of branch)
+ 1 - "memory" fmt insn
+ 2 - byte-manipulation (byte offset reg)
+ 3 - jsr (target of branch)
ENUM
BFD_RELOC_ALPHA_HINT
ENUMDOC
microMIPS PC-relative relocations.
+ENUM
+ BFD_RELOC_MIPS16_16_PCREL_S1
+ENUMDOC
+ MIPS16 PC-relative relocation.
+
ENUM
BFD_RELOC_MIPS_21_PCREL_S2
ENUMX
BFD_RELOC_FT32_17
ENUMX
BFD_RELOC_FT32_18
+ENUMX
+ BFD_RELOC_FT32_RELAX
+ENUMX
+ BFD_RELOC_FT32_SC0
+ENUMX
+ BFD_RELOC_FT32_SC1
+ENUMX
+ BFD_RELOC_FT32_15
+ENUMX
+ BFD_RELOC_FT32_DIFF32
ENUMDOC
FT32 ELF relocations.
COMMENT
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
ENUMX
BFD_RELOC_AC_SECTOFF_U8_2
ENUMX
- BFD_RELOC_AC_SECTFOFF_S9
+ BFD_RELOC_AC_SECTOFF_S9
ENUMX
- BFD_RELOC_AC_SECTFOFF_S9_1
+ BFD_RELOC_AC_SECTOFF_S9_1
ENUMX
- BFD_RELOC_AC_SECTFOFF_S9_2
+ BFD_RELOC_AC_SECTOFF_S9_2
ENUMX
BFD_RELOC_ARC_SECTOFF_ME_1
ENUMX
BFD_RELOC_ARC_SECTOFF_1
ENUMX
BFD_RELOC_ARC_SECTOFF_2
+ENUMX
+ BFD_RELOC_ARC_SDA_12
ENUMX
BFD_RELOC_ARC_SDA16_ST2
ENUMX
BFD_RELOC_ARC_S25W_PCREL_PLT
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
relocation enumerators. N.B. the order of the enumerators is
important as several tables in the AArch64 bfd backend are indexed
by these enumerators; make sure they are all synced.
+ENUM
+ BFD_RELOC_AARCH64_NULL
+ENUMDOC
+ Deprecated AArch64 null relocation code.
ENUM
BFD_RELOC_AARCH64_NONE
ENUMDOC
AArch64 MOV[NZ] instruction with most significant bits 32 to 47
of a signed value. Changes instruction to MOVZ or MOVN depending on the
value's sign.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_PREL_G0
+ENUMDOC
+ AArch64 MOV[NZ] instruction with most significant bits 0 to 15
+ of a signed value. Changes instruction to MOVZ or MOVN depending on the
+ value's sign.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_PREL_G0_NC
+ENUMDOC
+ AArch64 MOV[NZ] instruction with most significant bits 0 to 15
+ of a signed value. Changes instruction to MOVZ or MOVN depending on the
+ value's sign.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_PREL_G1
+ENUMDOC
+ AArch64 MOVK instruction with most significant bits 16 to 31
+ of a signed value.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_PREL_G1_NC
+ENUMDOC
+ AArch64 MOVK instruction with most significant bits 16 to 31
+ of a signed value.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_PREL_G2
+ENUMDOC
+ AArch64 MOVK instruction with most significant bits 32 to 47
+ of a signed value.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_PREL_G2_NC
+ENUMDOC
+ AArch64 MOVK instruction with most significant bits 32 to 47
+ of a signed value.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_PREL_G3
+ENUMDOC
+ AArch64 MOVK instruction with most significant bits 47 to 63
+ of a signed value.
ENUM
BFD_RELOC_AARCH64_LD_LO19_PCREL
ENUMDOC
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
- (_("%X%P: %B(%A): error: relocation for offset %V has no value\n"),
+ /* xgettext:c-format */
+ (_("%X%P: %pB(%pA): error: relocation for offset %V has no value\n"),
abfd, input_section, (* parent)->address);
goto error_return;
}
switch (r)
{
case bfd_reloc_undefined:
- if (!((*link_info->callbacks->undefined_symbol)
- (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
- input_bfd, input_section, (*parent)->address,
- TRUE)))
- goto error_return;
+ (*link_info->callbacks->undefined_symbol)
+ (link_info, bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
+ input_bfd, input_section, (*parent)->address, TRUE);
break;
case bfd_reloc_dangerous:
BFD_ASSERT (error_message != NULL);
- if (!((*link_info->callbacks->reloc_dangerous)
- (link_info, error_message, input_bfd, input_section,
- (*parent)->address)))
- goto error_return;
+ (*link_info->callbacks->reloc_dangerous)
+ (link_info, error_message,
+ input_bfd, input_section, (*parent)->address);
break;
case bfd_reloc_overflow:
- if (!((*link_info->callbacks->reloc_overflow)
- (link_info, NULL,
- bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
- (*parent)->howto->name, (*parent)->addend,
- input_bfd, input_section, (*parent)->address)))
- goto error_return;
+ (*link_info->callbacks->reloc_overflow)
+ (link_info, NULL,
+ bfd_asymbol_name (*(*parent)->sym_ptr_ptr),
+ (*parent)->howto->name, (*parent)->addend,
+ input_bfd, input_section, (*parent)->address);
break;
case bfd_reloc_outofrange:
/* PR ld/13730:
complete binaries. Do not abort, but issue an error
message instead. */
link_info->callbacks->einfo
- (_("%X%P: %B(%A): relocation \"%R\" goes out of range\n"),
+ /* xgettext:c-format */
+ (_("%X%P: %pB(%pA): relocation \"%pR\" 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
- (_("%X%P: %B(%A): relocation \"%R\" is not supported\n"),
+ /* xgettext:c-format */
+ (_("%X%P: %pB(%pA): relocation \"%pR\" is not supported\n"),
abfd, input_section, * parent);
goto error_return;
/* PR 17512; file: 90c2a92e.
Report unexpected results, without aborting. */
link_info->callbacks->einfo
- (_("%X%P: %B(%A): relocation \"%R\" returns an unrecognized value %x\n"),
+ /* xgettext:c-format */
+ (_("%X%P: %pB(%pA): relocation \"%pR\" 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 (_("%pB: unrecognized relocation (%#x) in section `%pA'"),
+ 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;
+}
+
+reloc_howto_type *
+_bfd_norelocs_bfd_reloc_type_lookup
+ (bfd *abfd,
+ bfd_reloc_code_real_type code ATTRIBUTE_UNUSED)
+{
+ return (reloc_howto_type *) _bfd_ptr_bfd_null_error (abfd);
+}
+
+reloc_howto_type *
+_bfd_norelocs_bfd_reloc_name_lookup (bfd *abfd,
+ const char *reloc_name ATTRIBUTE_UNUSED)
+{
+ return (reloc_howto_type *) _bfd_ptr_bfd_null_error (abfd);
+}
+
+long
+_bfd_nodynamic_canonicalize_dynamic_reloc (bfd *abfd,
+ arelent **relp ATTRIBUTE_UNUSED,
+ asymbol **symp ATTRIBUTE_UNUSED)
+{
+ return _bfd_long_bfd_n1_error (abfd);
+}
projects / deliverable / binutils-gdb.git / blobdiff