/* BFD support for handling relocation entries.
- Copyright (C) 1990-2014 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,
. {* The symbol to relocate against was undefined. *}
. bfd_reloc_undefined,
.
-. {* The relocation was performed, but may not be ok - presently
-. generated only when linking i960 coff files with i960 b.out
-. symbols. If this type is returned, the error_message argument
-. to bfd_perform_relocation will be set. *}
+. {* The relocation was performed, but may not be ok. If this type is
+. returned, the error_message argument to bfd_perform_relocation
+. will be set. *}
. bfd_reloc_dangerous
. }
. bfd_reloc_status_type;
.
+.typedef const struct reloc_howto_struct reloc_howto_type;
.
.typedef struct reloc_cache_entry
.{
/*
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. *}
-.
.struct reloc_howto_struct
.{
-. {* The type field has mainly a documentary use - the back end can
-. do what it wants with it, though normally the back end's
-. external idea of what a reloc number is stored
-. in this field. For example, a PC relative word relocation
-. in a coff environment has the type 023 - because that's
-. what the outside world calls a R_PCRWORD reloc. *}
+. {* The type field has mainly a documentary use - the back end can
+. do what it wants with it, though normally the back end's idea of
+. an external reloc number is stored in this field. *}
. unsigned int type;
.
-. {* The value the final relocation is shifted right by. This drops
-. unwanted data from the relocation. *}
-. unsigned int rightshift;
-.
-. {* The size of the item to be relocated. This is *not* a
-. power-of-two measure. To get the number of bytes operated
-. on by a type of relocation, use bfd_get_reloc_size. *}
-. int size;
+. {* The encoded size of the item to be relocated. This is *not* a
+. power-of-two measure. Use bfd_get_reloc_size to find the size
+. of the item in bytes. *}
+. unsigned int size:3;
.
-. {* The number of bits in the item to be relocated. This is used
-. when doing overflow checking. *}
-. unsigned int bitsize;
+. {* The number of bits in the field to be relocated. This is used
+. when doing overflow checking. *}
+. unsigned int bitsize:7;
.
-. {* The relocation is relative to the field being relocated. *}
-. bfd_boolean pc_relative;
+. {* The value the final relocation is shifted right by. This drops
+. unwanted data from the relocation. *}
+. unsigned int rightshift:6;
.
-. {* The bit position of the reloc value in the destination.
-. The relocated value is left shifted by this amount. *}
-. unsigned int bitpos;
+. {* The bit position of the reloc value in the destination.
+. The relocated value is left shifted by this amount. *}
+. unsigned int bitpos:6;
.
. {* What type of overflow error should be checked for when
. relocating. *}
-. enum complain_overflow complain_on_overflow;
+. ENUM_BITFIELD (complain_overflow) complain_on_overflow:2;
.
-. {* 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 accommodated (e.g., i960 callj
-. instructions). *}
-. bfd_reloc_status_type (*special_function)
-. (bfd *, arelent *, struct bfd_symbol *, void *, asection *,
-. bfd *, char **);
+. {* The relocation value should be negated before applying. *}
+. unsigned int negate:1;
.
-. {* The textual name of the relocation type. *}
-. char *name;
+. {* The relocation is relative to the item being relocated. *}
+. unsigned int pc_relative:1;
.
. {* Some formats record a relocation addend in the section contents
. rather than with the relocation. For ELF formats this is the
. USE_REL targets set this field to TRUE. Why this is so is peculiar
. to each particular target. For relocs that aren't used in partial
. links (e.g. GOT stuff) it doesn't matter what this is set to. *}
-. bfd_boolean partial_inplace;
+. unsigned int partial_inplace:1;
+.
+. {* When some formats create PC relative instructions, they leave
+. the value of the pc of the place being relocated in the offset
+. slot of the instruction, so that a PC relative relocation can
+. be made just by adding in an ordinary offset (e.g., sun3 a.out).
+. Some formats leave the displacement part of an instruction
+. empty (e.g., ELF); this flag signals the fact. *}
+. unsigned int pcrel_offset:1;
.
. {* src_mask selects the part of the instruction (or data) to be used
. in the relocation sum. If the target relocations don't have an
. addend in the reloc, eg. ELF USE_REL, src_mask will normally equal
. dst_mask to extract the addend from the section contents. If
. relocations do have an addend in the reloc, eg. ELF USE_RELA, this
-. field should be zero. Non-zero values for ELF USE_RELA targets are
-. bogus as in those cases the value in the dst_mask part of the
-. section contents should be treated as garbage. *}
+. field should normally be zero. Non-zero values for ELF USE_RELA
+. targets should be viewed with suspicion as normally the value in
+. the dst_mask part of the section contents should be ignored. *}
. bfd_vma src_mask;
.
. {* dst_mask selects which parts of the instruction (or data) are
. replaced with a relocated value. *}
. bfd_vma dst_mask;
.
-. {* When some formats create PC relative instructions, they leave
-. the value of the pc of the place being relocated in the offset
-. slot of the instruction, so that a PC relative relocation can
-. be made just by adding in an ordinary offset (e.g., sun3 a.out).
-. Some formats leave the displacement part of an instruction
-. empty (e.g., m88k bcs); this flag signals the fact. *}
-. bfd_boolean pcrel_offset;
+. {* 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 accommodated. *}
+. bfd_reloc_status_type (*special_function)
+. (bfd *, arelent *, struct bfd_symbol *, void *, asection *,
+. bfd *, char **);
+.
+. {* The textual name of the relocation type. *}
+. char *name;
.};
.
*/
The HOWTO Macro
DESCRIPTION
- The HOWTO define is horrible and will go away.
+ The HOWTO macro fills in a reloc_howto_type (a typedef for
+ const struct reloc_howto_struct).
-.#define HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
-. { (unsigned) C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC }
-
-DESCRIPTION
- And will be replaced with the totally magic way. But for the
- moment, we are compatible, so do it this way.
-
-.#define NEWHOWTO(FUNCTION, NAME, SIZE, REL, IN) \
-. HOWTO (0, 0, SIZE, 0, REL, 0, complain_overflow_dont, FUNCTION, \
-. NAME, FALSE, 0, 0, IN)
-.
+.#define HOWTO(type, right, size, bits, pcrel, left, ovf, func, name, \
+. inplace, src_mask, dst_mask, pcrel_off) \
+. { (unsigned) type, size < 0 ? -size : size, bits, right, left, ovf, \
+. size < 0, pcrel, inplace, pcrel_off, src_mask, dst_mask, func, name }
DESCRIPTION
This is used to fill in an empty howto entry in an array.
.#define EMPTY_HOWTO(C) \
. HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
-. 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; \
-. } \
-. } \
-. }
+. NULL, FALSE, 0, 0, FALSE)
.
*/
case 2: return 4;
case 3: return 0;
case 4: return 8;
- case 8: return 16;
- case -2: return 4;
+ case 5: return 3;
default: abort ();
}
}
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;
+}
+
+/* Read and return the section contents at DATA converted to a host
+ integer (bfd_vma). The number of bytes read is given by the HOWTO. */
+
+static bfd_vma
+read_reloc (bfd *abfd, bfd_byte *data, reloc_howto_type *howto)
+{
+ switch (howto->size)
+ {
+ case 0:
+ return bfd_get_8 (abfd, data);
+
+ case 1:
+ return bfd_get_16 (abfd, data);
+
+ case 2:
+ return bfd_get_32 (abfd, data);
+
+ case 3:
+ break;
+
+#ifdef BFD64
+ case 4:
+ return bfd_get_64 (abfd, data);
+#endif
+
+ case 5:
+ return bfd_get_24 (abfd, data);
+
+ default:
+ abort ();
+ }
+ return 0;
+}
+
+/* Convert VAL to target format and write to DATA. The number of
+ bytes written is given by the HOWTO. */
+
+static void
+write_reloc (bfd *abfd, bfd_vma val, bfd_byte *data, reloc_howto_type *howto)
+{
+ switch (howto->size)
+ {
+ case 0:
+ bfd_put_8 (abfd, val, data);
+ break;
+
+ case 1:
+ bfd_put_16 (abfd, val, data);
+ break;
+
+ case 2:
+ bfd_put_32 (abfd, val, data);
+ break;
+
+ case 3:
+ break;
+
+#ifdef BFD64
+ case 4:
+ bfd_put_64 (abfd, val, data);
+ break;
+#endif
+
+ case 5:
+ bfd_put_24 (abfd, val, data);
+ break;
+
+ default:
+ abort ();
+ }
+}
+
+/* Apply RELOCATION value to target bytes at DATA, according to
+ HOWTO. */
+
+static void
+apply_reloc (bfd *abfd, bfd_byte *data, reloc_howto_type *howto,
+ bfd_vma relocation)
+{
+ bfd_vma val = read_reloc (abfd, data, howto);
+
+ if (howto->negate)
+ relocation = -relocation;
+
+ val = ((val & ~howto->dst_mask)
+ | (((val & howto->src_mask) + relocation) & howto->dst_mask));
+
+ write_reloc (abfd, val, data, howto);
+}
+
/*
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
{
bfd_vma relocation;
bfd_reloc_status_type flag = bfd_reloc_ok;
- bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+ bfd_size_type octets;
bfd_vma output_base = 0;
reloc_howto_type *howto = reloc_entry->howto;
asection *reloc_target_output_section;
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;
- }
/* 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;
}
+ 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? */
- if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+ 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
the addend to be the negative of the position of the location
within the section; for example, i386-aout does this. For
i386-aout, pcrel_offset is FALSE. Some other targets do not
- include the position of the location; for example, m88kbcs,
- or ELF. For those targets, pcrel_offset is TRUE.
+ include the position of the location; for example, ELF.
+ For those targets, pcrel_offset is TRUE.
If we are producing relocatable output, then we must ensure
that this reloc will be correctly computed when the final
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) \
- x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
-
- switch (howto->size)
- {
- case 0:
- {
- char x = bfd_get_8 (abfd, (char *) data + octets);
- DOIT (x);
- bfd_put_8 (abfd, x, (unsigned char *) data + octets);
- }
- break;
-
- case 1:
- {
- short x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
- DOIT (x);
- bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + octets);
- }
- break;
- case 2:
- {
- long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
- DOIT (x);
- bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
- }
- break;
- case -2:
- {
- long x = bfd_get_32 (abfd, (bfd_byte *) data + octets);
- relocation = -relocation;
- DOIT (x);
- bfd_put_32 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
- }
- break;
-
- case -1:
- {
- long x = bfd_get_16 (abfd, (bfd_byte *) data + octets);
- relocation = -relocation;
- DOIT (x);
- bfd_put_16 (abfd, (bfd_vma) x, (bfd_byte *) data + octets);
- }
- break;
-
- case 3:
- /* Do nothing */
- break;
-
- case 4:
-#ifdef BFD64
- {
- bfd_vma x = bfd_get_64 (abfd, (bfd_byte *) data + octets);
- DOIT (x);
- bfd_put_64 (abfd, x, (bfd_byte *) data + octets);
- }
-#else
- abort ();
-#endif
- break;
- default:
- return bfd_reloc_other;
- }
-
+ data = (bfd_byte *) data + octets;
+ apply_reloc (abfd, data, howto, relocation);
return flag;
}
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_vma relocation;
bfd_reloc_status_type flag = bfd_reloc_ok;
- bfd_size_type octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+ bfd_size_type octets;
bfd_vma output_base = 0;
reloc_howto_type *howto = reloc_entry->howto;
asection *reloc_target_output_section;
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? */
- if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ octets = reloc_entry->address * bfd_octets_per_byte (abfd);
+ 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
the addend to be the negative of the position of the location
within the section; for example, i386-aout does this. For
i386-aout, pcrel_offset is FALSE. Some other targets do not
- include the position of the location; for example, m88kbcs,
- or ELF. For those targets, pcrel_offset is TRUE.
+ include the position of the location; for example, ELF.
+ For those targets, pcrel_offset is TRUE.
If we are producing relocatable output, then we must ensure
that this reloc will be correctly computed when the final
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) \
- x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
-
data = (bfd_byte *) data_start + (octets - data_start_offset);
-
- switch (howto->size)
- {
- case 0:
- {
- char x = bfd_get_8 (abfd, data);
- DOIT (x);
- bfd_put_8 (abfd, x, data);
- }
- break;
-
- case 1:
- {
- short x = bfd_get_16 (abfd, data);
- DOIT (x);
- bfd_put_16 (abfd, (bfd_vma) x, data);
- }
- break;
- case 2:
- {
- long x = bfd_get_32 (abfd, data);
- DOIT (x);
- bfd_put_32 (abfd, (bfd_vma) x, data);
- }
- break;
- case -2:
- {
- long x = bfd_get_32 (abfd, data);
- relocation = -relocation;
- DOIT (x);
- bfd_put_32 (abfd, (bfd_vma) x, data);
- }
- break;
-
- case 3:
- /* Do nothing */
- break;
-
- case 4:
- {
- bfd_vma x = bfd_get_64 (abfd, data);
- DOIT (x);
- bfd_put_64 (abfd, x, data);
- }
- break;
- default:
- return bfd_reloc_other;
- }
-
+ apply_reloc (abfd, data, howto, relocation);
return flag;
}
bfd_vma addend)
{
bfd_vma relocation;
+ bfd_size_type octets = address * bfd_octets_per_byte (input_bfd);
/* Sanity check the address. */
- if (address > bfd_get_section_limit (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
location we are relocating. Some targets (e.g., i386-aout)
arrange for the contents of the section to be the negative of the
offset of the location within the section; for such targets
- pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
- simply leave the contents of the section as zero; for such
- targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
- need to subtract out the offset of the location within the
- section (which is just ADDRESS). */
+ pcrel_offset is FALSE. Other targets (e.g., ELF) simply leave
+ the contents of the section as zero; for such targets
+ pcrel_offset is TRUE. If pcrel_offset is FALSE we do not need to
+ subtract out the offset of the location within the section (which
+ is just ADDRESS). */
if (howto->pc_relative)
{
relocation -= (input_section->output_section->vma
}
return _bfd_relocate_contents (howto, input_bfd, relocation,
- contents + address);
+ contents
+ + address * bfd_octets_per_byte (input_bfd));
}
/* Relocate a given location using a given value and howto. */
bfd_vma relocation,
bfd_byte *location)
{
- int size;
- bfd_vma x = 0;
+ bfd_vma x;
bfd_reloc_status_type flag;
unsigned int rightshift = howto->rightshift;
unsigned int bitpos = howto->bitpos;
- /* If the size is negative, negate RELOCATION. This isn't very
- general. */
- if (howto->size < 0)
+ if (howto->negate)
relocation = -relocation;
/* 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;
- }
+ x = read_reloc (input_bfd, location, howto);
/* Check for overflow. FIXME: We may drop bits during the addition
which we don't check for. We must either check at every single
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;
| (((x & howto->src_mask) + relocation) & howto->dst_mask));
/* Put the relocated value back in the object file. */
- switch (size)
- {
- default:
- 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;
- }
-
+ write_reloc (input_bfd, x, location, howto);
return flag;
}
asection *input_section,
bfd_byte *location)
{
- int size;
- bfd_vma x = 0;
+ bfd_vma x;
/* 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;
- }
+ x = read_reloc (input_bfd, location, howto);
/* Zero out the unwanted bits of X. */
x &= ~howto->dst_mask;
x |= 1;
/* 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;
- }
+ write_reloc (input_bfd, x, location, howto);
}
/*
of the relocation itself; sometimes they are relative to the start of
the section containing the relocation. It depends on the specific target.
-The 24-bit relocation is used in some Intel 960 configurations.
-
ENUM
BFD_RELOC_32_SECREL
ENUMDOC
handled specially, because the value the register will have is
decided relatively late.
-ENUM
- BFD_RELOC_I960_CALLJ
-ENUMDOC
- Reloc types used for i960/b.out.
-
ENUM
BFD_RELOC_NONE
ENUMX
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
COMMENT
ENUM
- BFD_RELOC_FRV_LABEL16
+ BFD_RELOC_FT32_10
ENUMX
- BFD_RELOC_FRV_LABEL24
+ BFD_RELOC_FT32_20
ENUMX
- BFD_RELOC_FRV_LO16
+ BFD_RELOC_FT32_17
ENUMX
- BFD_RELOC_FRV_HI16
+ 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
+
+ENUM
+ BFD_RELOC_FRV_LABEL16
+ENUMX
+ BFD_RELOC_FRV_LABEL24
+ENUMX
+ BFD_RELOC_FRV_LO16
+ENUMX
+ BFD_RELOC_FRV_HI16
ENUMX
BFD_RELOC_FRV_GPREL12
ENUMX
BFD_RELOC_386_TLS_DESC
ENUMX
BFD_RELOC_386_IRELATIVE
+ENUMX
+ BFD_RELOC_386_GOT32X
ENUMDOC
i386/elf relocations
BFD_RELOC_X86_64_PC32_BND
ENUMX
BFD_RELOC_X86_64_PLT32_BND
+ENUMX
+ BFD_RELOC_X86_64_GOTPCRELX
+ENUMX
+ BFD_RELOC_X86_64_REX_GOTPCRELX
ENUMDOC
x86-64/elf relocations
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_PPC64_HIGHER
ENUMX
BFD_RELOC_PPC64_ADDR16_HIGH
ENUMX
BFD_RELOC_PPC64_ADDR16_HIGHA
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGH
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHA
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHER
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHERA
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHEST
+ENUMX
+ BFD_RELOC_PPC64_REL16_HIGHESTA
ENUMX
BFD_RELOC_PPC64_ADDR64_LOCAL
+ENUMX
+ BFD_RELOC_PPC64_ENTRY
+ENUMX
+ BFD_RELOC_PPC64_REL24_NOTOC
ENUMDOC
Power(rs6000) and PowerPC relocations.
ENUMDOC
Low and High halfword relocations for MOVW and MOVT instructions.
+ENUM
+ BFD_RELOC_ARM_GOTFUNCDESC
+ENUMX
+ BFD_RELOC_ARM_GOTOFFFUNCDESC
+ENUMX
+ BFD_RELOC_ARM_FUNCDESC
+ENUMX
+ BFD_RELOC_ARM_FUNCDESC_VALUE
+ENUMX
+ BFD_RELOC_ARM_TLS_GD32_FDPIC
+ENUMX
+ BFD_RELOC_ARM_TLS_LDM32_FDPIC
+ENUMX
+ BFD_RELOC_ARM_TLS_IE32_FDPIC
+ENUMDOC
+ ARM FDPIC specific relocations.
+
ENUM
BFD_RELOC_ARM_JUMP_SLOT
ENUMX
ENUMDOC
ARM support for STT_GNU_IFUNC.
+ENUM
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G0_NC
+ENUMX
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G1_NC
+ENUMX
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G2_NC
+ENUMX
+ BFD_RELOC_ARM_THUMB_ALU_ABS_G3_NC
+ENUMDOC
+ Thumb1 relocations to support execute-only code.
+
ENUM
BFD_RELOC_ARM_IMMEDIATE
ENUMX
Renesas / SuperH SH relocs. Not all of these appear in object files.
ENUM
- BFD_RELOC_ARC_B22_PCREL
-ENUMDOC
- ARC Cores relocs.
- ARC 22 bit pc-relative branch. The lowest two bits must be zero and are
- not stored in the instruction. The high 20 bits are installed in bits 26
- through 7 of the instruction.
-ENUM
- BFD_RELOC_ARC_B26
+ BFD_RELOC_ARC_NONE
+ENUMX
+ BFD_RELOC_ARC_8
+ENUMX
+ BFD_RELOC_ARC_16
+ENUMX
+ BFD_RELOC_ARC_24
+ENUMX
+ BFD_RELOC_ARC_32
+ENUMX
+ BFD_RELOC_ARC_N8
+ENUMX
+ BFD_RELOC_ARC_N16
+ENUMX
+ BFD_RELOC_ARC_N24
+ENUMX
+ BFD_RELOC_ARC_N32
+ENUMX
+ BFD_RELOC_ARC_SDA
+ENUMX
+ BFD_RELOC_ARC_SECTOFF
+ENUMX
+ BFD_RELOC_ARC_S21H_PCREL
+ENUMX
+ BFD_RELOC_ARC_S21W_PCREL
+ENUMX
+ BFD_RELOC_ARC_S25H_PCREL
+ENUMX
+ BFD_RELOC_ARC_S25W_PCREL
+ENUMX
+ BFD_RELOC_ARC_SDA32
+ENUMX
+ BFD_RELOC_ARC_SDA_LDST
+ENUMX
+ BFD_RELOC_ARC_SDA_LDST1
+ENUMX
+ BFD_RELOC_ARC_SDA_LDST2
+ENUMX
+ BFD_RELOC_ARC_SDA16_LD
+ENUMX
+ BFD_RELOC_ARC_SDA16_LD1
+ENUMX
+ BFD_RELOC_ARC_SDA16_LD2
+ENUMX
+ BFD_RELOC_ARC_S13_PCREL
+ENUMX
+ BFD_RELOC_ARC_W
+ENUMX
+ BFD_RELOC_ARC_32_ME
+ENUMX
+ BFD_RELOC_ARC_32_ME_S
+ENUMX
+ BFD_RELOC_ARC_N32_ME
+ENUMX
+ BFD_RELOC_ARC_SECTOFF_ME
+ENUMX
+ BFD_RELOC_ARC_SDA32_ME
+ENUMX
+ BFD_RELOC_ARC_W_ME
+ENUMX
+ BFD_RELOC_AC_SECTOFF_U8
+ENUMX
+ BFD_RELOC_AC_SECTOFF_U8_1
+ENUMX
+ BFD_RELOC_AC_SECTOFF_U8_2
+ENUMX
+ BFD_RELOC_AC_SECTOFF_S9
+ENUMX
+ BFD_RELOC_AC_SECTOFF_S9_1
+ENUMX
+ BFD_RELOC_AC_SECTOFF_S9_2
+ENUMX
+ BFD_RELOC_ARC_SECTOFF_ME_1
+ENUMX
+ BFD_RELOC_ARC_SECTOFF_ME_2
+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_32_PCREL
+ENUMX
+ BFD_RELOC_ARC_PC32
+ENUMX
+ BFD_RELOC_ARC_GOT32
+ENUMX
+ BFD_RELOC_ARC_GOTPC32
+ENUMX
+ BFD_RELOC_ARC_PLT32
+ENUMX
+ BFD_RELOC_ARC_COPY
+ENUMX
+ BFD_RELOC_ARC_GLOB_DAT
+ENUMX
+ BFD_RELOC_ARC_JMP_SLOT
+ENUMX
+ BFD_RELOC_ARC_RELATIVE
+ENUMX
+ BFD_RELOC_ARC_GOTOFF
+ENUMX
+ BFD_RELOC_ARC_GOTPC
+ENUMX
+ BFD_RELOC_ARC_S21W_PCREL_PLT
+ENUMX
+ BFD_RELOC_ARC_S25H_PCREL_PLT
+ENUMX
+ BFD_RELOC_ARC_TLS_DTPMOD
+ENUMX
+ BFD_RELOC_ARC_TLS_TPOFF
+ENUMX
+ BFD_RELOC_ARC_TLS_GD_GOT
+ENUMX
+ BFD_RELOC_ARC_TLS_GD_LD
+ENUMX
+ BFD_RELOC_ARC_TLS_GD_CALL
+ENUMX
+ BFD_RELOC_ARC_TLS_IE_GOT
+ENUMX
+ BFD_RELOC_ARC_TLS_DTPOFF
+ENUMX
+ BFD_RELOC_ARC_TLS_DTPOFF_S9
+ENUMX
+ BFD_RELOC_ARC_TLS_LE_S9
+ENUMX
+ BFD_RELOC_ARC_TLS_LE_32
+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 26 bit absolute branch. The lowest two bits must be zero and are not
- stored in the instruction. The high 24 bits are installed in bits 23
- through 0.
+ ARC relocs.
ENUM
BFD_RELOC_BFIN_16_IMM
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
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
BFD_RELOC_RL78_LO16
ENUMX
BFD_RELOC_RL78_CODE
+ENUMX
+ BFD_RELOC_RL78_SADDR
ENUMDOC
Renesas RL78 Relocations.
Motorola 68HC12/XGATE reloc.
This is the 8 bit high part of an absolute address and immediately follows
a matching LO8XG part.
+ENUM
+ BFD_RELOC_S12Z_15_PCREL
+ENUMDOC
+ 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
Relocs used in TLS code for CRIS.
ENUM
- BFD_RELOC_860_COPY
-ENUMX
- BFD_RELOC_860_GLOB_DAT
-ENUMX
- BFD_RELOC_860_JUMP_SLOT
-ENUMX
- BFD_RELOC_860_RELATIVE
-ENUMX
- BFD_RELOC_860_PC26
-ENUMX
- BFD_RELOC_860_PLT26
-ENUMX
- BFD_RELOC_860_PC16
-ENUMX
- BFD_RELOC_860_LOW0
-ENUMX
- BFD_RELOC_860_SPLIT0
-ENUMX
- BFD_RELOC_860_LOW1
-ENUMX
- BFD_RELOC_860_SPLIT1
-ENUMX
- BFD_RELOC_860_LOW2
-ENUMX
- BFD_RELOC_860_SPLIT2
-ENUMX
- BFD_RELOC_860_LOW3
-ENUMX
- BFD_RELOC_860_LOGOT0
-ENUMX
- BFD_RELOC_860_SPGOT0
-ENUMX
- BFD_RELOC_860_LOGOT1
-ENUMX
- BFD_RELOC_860_SPGOT1
-ENUMX
- BFD_RELOC_860_LOGOTOFF0
-ENUMX
- BFD_RELOC_860_SPGOTOFF0
-ENUMX
- BFD_RELOC_860_LOGOTOFF1
-ENUMX
- BFD_RELOC_860_SPGOTOFF1
-ENUMX
- BFD_RELOC_860_LOGOTOFF2
-ENUMX
- BFD_RELOC_860_LOGOTOFF3
-ENUMX
- BFD_RELOC_860_LOPC
-ENUMX
- BFD_RELOC_860_HIGHADJ
-ENUMX
- BFD_RELOC_860_HAGOT
-ENUMX
- BFD_RELOC_860_HAGOTOFF
+ BFD_RELOC_OR1K_REL_26
ENUMX
- BFD_RELOC_860_HAPC
+ BFD_RELOC_OR1K_SLO16
ENUMX
- BFD_RELOC_860_HIGH
+ BFD_RELOC_OR1K_PCREL_PG21
ENUMX
- BFD_RELOC_860_HIGOT
+ BFD_RELOC_OR1K_LO13
ENUMX
- BFD_RELOC_860_HIGOTOFF
-ENUMDOC
- Intel i860 Relocations.
-
-ENUM
- BFD_RELOC_OR1K_REL_26
+ 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
BFD_RELOC_NIOS2_CALL_LO
ENUMX
BFD_RELOC_NIOS2_CALL_HA
+ENUMX
+ BFD_RELOC_NIOS2_R2_S12
+ENUMX
+ BFD_RELOC_NIOS2_R2_I10_1_PCREL
+ENUMX
+ BFD_RELOC_NIOS2_R2_T1I7_1_PCREL
+ENUMX
+ BFD_RELOC_NIOS2_R2_T1I7_2
+ENUMX
+ BFD_RELOC_NIOS2_R2_T2I4
+ENUMX
+ BFD_RELOC_NIOS2_R2_T2I4_1
+ENUMX
+ BFD_RELOC_NIOS2_R2_T2I4_2
+ENUMX
+ BFD_RELOC_NIOS2_R2_X1I7_2
+ENUMX
+ BFD_RELOC_NIOS2_R2_X2L5
+ENUMX
+ BFD_RELOC_NIOS2_R2_F1I5_2
+ENUMX
+ BFD_RELOC_NIOS2_R2_L5I4X1
+ENUMX
+ BFD_RELOC_NIOS2_R2_T1X1I6
+ENUMX
+ BFD_RELOC_NIOS2_R2_T1X1I6_2
ENUMDOC
Relocations used by the Altera Nios II core.
ENUM
- BFD_RELOC_IQ2000_OFFSET_16
-ENUMX
- BFD_RELOC_IQ2000_OFFSET_21
+ 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
+ BFD_RELOC_IQ2000_OFFSET_21
ENUMX
BFD_RELOC_IQ2000_UHI16
ENUMDOC
BFD_RELOC_MACH_O_PAIR
ENUMDOC
Pair of relocation. Contains the first symbol.
+ENUM
+ BFD_RELOC_MACH_O_SUBTRACTOR32
+ENUMDOC
+ Symbol will be substracted. Must be followed by a BFD_RELOC_32.
+ENUM
+ BFD_RELOC_MACH_O_SUBTRACTOR64
+ENUMDOC
+ Symbol will be substracted. Must be followed by a BFD_RELOC_64.
ENUM
BFD_RELOC_MACH_O_X86_64_BRANCH32
ENUMDOC
Used when loading a GOT entry with movq. It is specially marked so that
the linker could optimize the movq to a leaq if possible.
-ENUM
- BFD_RELOC_MACH_O_X86_64_SUBTRACTOR32
-ENUMDOC
- Symbol will be substracted. Must be followed by a BFD_RELOC_64.
-ENUM
- BFD_RELOC_MACH_O_X86_64_SUBTRACTOR64
-ENUMDOC
- Symbol will be substracted. Must be followed by a BFD_RELOC_64.
ENUM
BFD_RELOC_MACH_O_X86_64_PCREL32_1
ENUMDOC
BFD_RELOC_MACH_O_X86_64_PCREL32_4
ENUMDOC
Same as BFD_RELOC_32_PCREL but with an implicit -4 addend.
+ENUM
+ BFD_RELOC_MACH_O_X86_64_TLV
+ENUMDOC
+ Used when referencing a TLV entry.
+
+
+ENUM
+ BFD_RELOC_MACH_O_ARM64_ADDEND
+ENUMDOC
+ Addend for PAGE or PAGEOFF.
+ENUM
+ BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGE21
+ENUMDOC
+ Relative offset to page of GOT slot.
+ENUM
+ BFD_RELOC_MACH_O_ARM64_GOT_LOAD_PAGEOFF12
+ENUMDOC
+ Relative offset within page of GOT slot.
+ENUM
+ BFD_RELOC_MACH_O_ARM64_POINTER_TO_GOT
+ENUMDOC
+ Address of a GOT entry.
ENUM
BFD_RELOC_MICROBLAZE_32_LO
ENUMDOC
This is a 64 bit reloc that stores 32-bit thread pointer relative offset
to two words (uses imm instruction).
+ENUM
+ BFD_RELOC_MICROBLAZE_64_TEXTPCREL
+ENUMDOC
+ This is a 64 bit reloc that stores the 32 bit pc relative
+ value in two words (with an imm instruction). The relocation is
+ PC-relative offset from start of TEXT.
+ENUM
+ BFD_RELOC_MICROBLAZE_64_TEXTREL
+ENUMDOC
+ This is a 64 bit reloc that stores the 32 bit offset
+ value in two words (with an imm instruction). The relocation is
+ relative offset from start of TEXT.
ENUM
BFD_RELOC_AARCH64_RELOC_START
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
+ Unsigned 16 bit byte offset for 64 bit load/store from the GOT entry
+ for this symbol. Valid in LP64 ABI only.
+ENUM
+ BFD_RELOC_AARCH64_MOVW_GOTOFF_G1
+ENUMDOC
+ Unsigned 16 bit byte higher offset for 64 bit load/store from the GOT entry
+ for this symbol. Valid in LP64 ABI only.
+ENUM
+ BFD_RELOC_AARCH64_LD64_GOTOFF_LO15
+ENUMDOC
+ Unsigned 15 bit byte offset for 64 bit load/store from the page of
+ the GOT entry for this symbol. Valid in LP64 ABI only.
+ENUM
+ BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14
+ENUMDOC
+ Scaled 14 bit byte offset to the page base of the global offset table.
+ENUM
+ BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15
+ENUMDOC
+ Scaled 15 bit byte offset to the page base of the global offset table.
ENUM
BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21
ENUMDOC
tls_index structure as part of an adrp instruction using a 21 bit PC
relative value. Used in conjunction with
BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC.
+ENUM
+ BFD_RELOC_AARCH64_TLSGD_ADR_PREL21
+ENUMDOC
+ AArch64 TLS General Dynamic
ENUM
BFD_RELOC_AARCH64_TLSGD_ADD_LO12_NC
ENUMDOC
tls_index structure. Used in conjunction with
BFD_RELOC_AARCH64_TLSGD_ADR_PAGE21.
ENUM
- BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1
+ BFD_RELOC_AARCH64_TLSGD_MOVW_G0_NC
ENUMDOC
- AArch64 TLS INITIAL EXEC relocation.
+ AArch64 TLS General Dynamic relocation.
ENUM
- BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC
+ BFD_RELOC_AARCH64_TLSGD_MOVW_G1
ENUMDOC
- AArch64 TLS INITIAL EXEC relocation.
+ AArch64 TLS General Dynamic relocation.
ENUM
BFD_RELOC_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21
ENUMDOC
BFD_RELOC_AARCH64_TLSIE_LD_GOTTPREL_PREL19
ENUMDOC
AArch64 TLS INITIAL EXEC relocation.
+ENUM
+ BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC
+ENUMDOC
+ AArch64 TLS INITIAL EXEC relocation.
+ENUM
+ BFD_RELOC_AARCH64_TLSIE_MOVW_GOTTPREL_G1
+ENUMDOC
+ AArch64 TLS INITIAL EXEC relocation.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_HI12
+ENUMDOC
+ bit[23:12] of byte offset to module TLS base address.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12
+ENUMDOC
+ Unsigned 12 bit byte offset to module TLS base address.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12_NC
+ENUMDOC
+ No overflow check version of BFD_RELOC_AARCH64_TLSLD_ADD_DTPREL_LO12.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_ADD_LO12_NC
+ENUMDOC
+ Unsigned 12 bit byte offset to global offset table entry for a symbols
+ tls_index structure. Used in conjunction with
+ BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_ADR_PAGE21
+ENUMDOC
+ GOT entry page address for AArch64 TLS Local Dynamic, used with ADRP
+ instruction.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_ADR_PREL21
+ENUMDOC
+ GOT entry address for AArch64 TLS Local Dynamic, used with ADR instruction.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12
+ENUMDOC
+ bit[11:1] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLD_LDST16_DTPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12
+ENUMDOC
+ bit[11:2] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLD_LDST32_DTPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12
+ENUMDOC
+ bit[11:3] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLD_LDST64_DTPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12
+ENUMDOC
+ bit[11:0] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLD_LDST8_DTPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0
+ENUMDOC
+ bit[15:0] of byte offset to module TLS base address.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0_NC
+ENUMDOC
+ No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G0
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1
+ENUMDOC
+ bit[31:16] of byte offset to module TLS base address.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC
+ENUMDOC
+ No overflow check version of BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G2
+ENUMDOC
+ bit[47:32] of byte offset to module TLS base address.
ENUM
BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G2
ENUMDOC
BFD_RELOC_AARCH64_TLSLE_ADD_TPREL_LO12_NC
ENUMDOC
AArch64 TLS LOCAL EXEC relocation.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12
+ENUMDOC
+ bit[11:1] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLE_LDST16_TPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12
+ENUMDOC
+ bit[11:2] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLE_LDST32_TPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12
+ENUMDOC
+ bit[11:3] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLE_LDST64_TPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12
+ENUMDOC
+ bit[11:0] of byte offset to module TLS base address, encoded in ldst
+ instructions.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLE_LDST8_TPREL_LO12, but no overflow check.
ENUM
BFD_RELOC_AARCH64_TLSDESC_LD_PREL19
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
AArch64 unspecified load/store instruction, holding bits 0 to 11 of the
address. Used in conjunction with BFD_RELOC_AARCH64_ADR_HI21_PCREL.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12
+ENUMDOC
+ AArch64 pseudo relocation code for TLS local dynamic mode. It's to be
+ used internally by the AArch64 assembler and not (currently) written to
+ any object files.
+ENUM
+ BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLD_LDST_DTPREL_LO12, but no overflow check.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12
+ENUMDOC
+ AArch64 pseudo relocation code for TLS local exec mode. It's to be
+ used internally by the AArch64 assembler and not (currently) written to
+ any object files.
+ENUM
+ BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12_NC
+ENUMDOC
+ Similar as BFD_RELOC_AARCH64_TLSLE_LDST_TPREL_LO12, but no overflow check.
ENUM
BFD_RELOC_AARCH64_LD_GOT_LO12_NC
ENUMDOC
ENUMDOC
AArch64 pseudo relocation code to be used internally by the AArch64
assembler and not (currently) written to any object files.
-
ENUM
BFD_RELOC_TILEPRO_COPY
ENUMX
BFD_RELOC_TILEGX_IMM8_Y1_TLS_ADD
ENUMDOC
Tilera TILE-Gx Relocations.
+
ENUM
BFD_RELOC_EPIPHANY_SIMM8
ENUMDOC
ENUMDOC
Adapteva EPIPHANY - 8 bit immediate for 16 bit mov instruction.
+ENUM
+ BFD_RELOC_VISIUM_HI16
+ENUMX
+ BFD_RELOC_VISIUM_LO16
+ENUMX
+ BFD_RELOC_VISIUM_IM16
+ENUMX
+ BFD_RELOC_VISIUM_REL16
+ENUMX
+ BFD_RELOC_VISIUM_HI16_PCREL
+ENUMX
+ BFD_RELOC_VISIUM_LO16_PCREL
+ENUMX
+ BFD_RELOC_VISIUM_IM16_PCREL
+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.
+
+ENUM
+ BFD_RELOC_CKCORE_NONE
+ENUMX
+ BFD_RELOC_CKCORE_ADDR32
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM8BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM11BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM4BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL32
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_JSR_IMM11BY2
+ENUMX
+ BFD_RELOC_CKCORE_GNU_VTINHERIT
+ENUMX
+ BFD_RELOC_CKCORE_GNU_VTENTRY
+ENUMX
+ BFD_RELOC_CKCORE_RELATIVE
+ENUMX
+ BFD_RELOC_CKCORE_COPY
+ENUMX
+ BFD_RELOC_CKCORE_GLOB_DAT
+ENUMX
+ BFD_RELOC_CKCORE_JUMP_SLOT
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF
+ENUMX
+ BFD_RELOC_CKCORE_GOTPC
+ENUMX
+ BFD_RELOC_CKCORE_GOT32
+ENUMX
+ BFD_RELOC_CKCORE_PLT32
+ENUMX
+ BFD_RELOC_CKCORE_ADDRGOT
+ENUMX
+ BFD_RELOC_CKCORE_ADDRPLT
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM26BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM16BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM16BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM10BY2
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM10BY4
+ENUMX
+ BFD_RELOC_CKCORE_ADDR_HI16
+ENUMX
+ BFD_RELOC_CKCORE_ADDR_LO16
+ENUMX
+ BFD_RELOC_CKCORE_GOTPC_HI16
+ENUMX
+ BFD_RELOC_CKCORE_GOTPC_LO16
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF_HI16
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF_LO16
+ENUMX
+ BFD_RELOC_CKCORE_GOT12
+ENUMX
+ BFD_RELOC_CKCORE_GOT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_GOT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_PLT12
+ENUMX
+ BFD_RELOC_CKCORE_PLT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_PLT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRGOT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRGOT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRPLT_HI16
+ENUMX
+ BFD_RELOC_CKCORE_ADDRPLT_LO16
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_JSR_IMM26BY2
+ENUMX
+ BFD_RELOC_CKCORE_TOFFSET_LO16
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_LO16
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM18BY2
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_IMM18
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_IMM18BY2
+ENUMX
+ BFD_RELOC_CKCORE_DOFFSET_IMM18BY4
+ENUMX
+ BFD_RELOC_CKCORE_GOTOFF_IMM18
+ENUMX
+ BFD_RELOC_CKCORE_GOT_IMM18BY4
+ENUMX
+ BFD_RELOC_CKCORE_PLT_IMM18BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_IMM7BY4
+ENUMX
+ BFD_RELOC_CKCORE_TLS_LE32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_IE32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_GD32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_LDM32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_LDO32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_DTPMOD32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_DTPOFF32
+ENUMX
+ BFD_RELOC_CKCORE_TLS_TPOFF32
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_FLRW_IMM8BY4
+ENUMX
+ BFD_RELOC_CKCORE_NOJSRI
+ENUMX
+ BFD_RELOC_CKCORE_CALLGRAPH
+ENUMX
+ BFD_RELOC_CKCORE_IRELATIVE
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_BLOOP_IMM4BY4
+ENUMX
+ BFD_RELOC_CKCORE_PCREL_BLOOP_IMM12BY4
+ENUMDOC
+ C-SKY relocations.
ENDSENUM
BFD_RELOC_UNUSED
{
case 64:
BFD_FAIL ();
+ break;
case 32:
return &bfd_howto_32;
case 16:
BFD_FAIL ();
+ break;
default:
BFD_FAIL ();
}
+ break;
default:
BFD_FAIL ();
}
struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
bfd_boolean *again)
{
- if (link_info->relocatable)
+ if (bfd_link_relocatable (link_info))
(*link_info->callbacks->einfo)
(_("%P%F: --relax and -r may not be used together\n"));
{
if (flaginfo != NULL)
{
- (*_bfd_error_handler) (_("INPUT_SECTION_FLAGS are not supported.\n"));
+ _bfd_error_handler (_("INPUT_SECTION_FLAGS are not supported"));
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 (reloc_count > 0)
{
arelent **parent;
+
for (parent = reloc_vector; *parent != NULL; parent++)
{
char *error_message = NULL;
bfd_reloc_status_type r;
symbol = *(*parent)->sym_ptr_ptr;
- if (symbol->section && discarded_section (symbol->section))
+ /* PR ld/19628: A specially crafted input file
+ can result in a NULL symbol pointer here. */
+ if (symbol == NULL)
+ {
+ link_info->callbacks->einfo
+ /* xgettext:c-format */
+ (_("%X%P: %pB(%pA): error: relocation for offset %V has no value\n"),
+ abfd, input_section, (* parent)->address);
+ goto error_return;
+ }
+
+ /* 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;
static reloc_howto_type none_howto
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;
+
+ case bfd_reloc_notsupported:
+ /* PR ld/17512
+ 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: %pB(%pA): relocation \"%pR\" is not supported\n"),
abfd, input_section, * parent);
goto error_return;
default:
- abort ();
+ /* PR 17512; file: 90c2a92e.
+ Report unexpected results, without aborting. */
+ link_info->callbacks->einfo
+ /* 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 type %#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