X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Freloc.c;h=33cd67150cfdeeab3be0014b97380fcb8658ec57;hb=b899eb3bb807be1094fde9a2f1c8628232bc0743;hp=e78e582c1f301b579bb0dde3d7d910d69619c02a;hpb=188fd7aea619d9f66a822bad881d8f56892b60aa;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/reloc.c b/bfd/reloc.c index e78e582c1f..33cd67150c 100644 --- a/bfd/reloc.c +++ b/bfd/reloc.c @@ -1,5 +1,5 @@ /* BFD support for handling relocation entries. - Copyright (C) 1990-2018 Free Software Foundation, Inc. + Copyright (C) 1990-2020 Free Software Foundation, Inc. Written by Cygnus Support. This file is part of BFD, the Binary File Descriptor library. @@ -94,6 +94,7 @@ CODE_FRAGMENT . } . bfd_reloc_status_type; . +.typedef const struct reloc_howto_struct reloc_howto_type; . .typedef struct reloc_cache_entry .{ @@ -279,51 +280,39 @@ SUBSUBSECTION 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. *} -. 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 @@ -340,29 +329,39 @@ CODE_FRAGMENT . 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., ELF); 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. *} +. const char *name; .}; . */ @@ -372,19 +371,13 @@ FUNCTION 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. @@ -393,25 +386,6 @@ DESCRIPTION . 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; \ -. } \ -. } \ -. } -. */ /* @@ -436,9 +410,7 @@ bfd_get_reloc_size (reloc_howto_type *howto) case 2: return 4; case 3: return 0; case 4: return 8; - case 8: return 16; - case -1: return 2; - case -2: return 4; + case 5: return 3; default: abort (); } } @@ -573,6 +545,96 @@ bfd_reloc_offset_in_range (reloc_howto_type *howto, 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 @@ -660,7 +722,7 @@ bfd_perform_relocation (bfd *abfd, return bfd_reloc_undefined; /* Is the address of the relocation really within the section? */ - octets = reloc_entry->address * bfd_octets_per_byte (abfd); + octets = reloc_entry->address * bfd_octets_per_byte (abfd, input_section); if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets)) return bfd_reloc_outofrange; @@ -682,7 +744,14 @@ bfd_perform_relocation (bfd *abfd, else output_base = reloc_target_output_section->vma; - relocation += output_base + symbol->section->output_offset; + output_base += symbol->section->output_offset; + + /* If symbol addresses are in octets, convert to bytes. */ + if (bfd_get_flavour (abfd) == bfd_target_elf_flavour + && (symbol->section->flags & SEC_ELF_OCTETS)) + output_base *= bfd_octets_per_byte (abfd, input_section); + + relocation += output_base; /* Add in supplied addend. */ relocation += reloc_entry->addend; @@ -912,70 +981,8 @@ space consuming. For each target: = R R R R R R R R R R put into bfd_put */ -#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; } @@ -1052,7 +1059,7 @@ bfd_install_relocation (bfd *abfd, 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); + octets = reloc_entry->address * bfd_octets_per_byte (abfd, input_section); if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets)) return bfd_reloc_outofrange; @@ -1073,7 +1080,14 @@ bfd_install_relocation (bfd *abfd, else output_base = reloc_target_output_section->vma; - relocation += output_base + symbol->section->output_offset; + output_base += symbol->section->output_offset; + + /* If symbol addresses are in octets, convert to bytes. */ + if (bfd_get_flavour (abfd) == bfd_target_elf_flavour + && (symbol->section->flags & SEC_ELF_OCTETS)) + output_base *= bfd_octets_per_byte (abfd, input_section); + + relocation += output_base; /* Add in supplied addend. */ relocation += reloc_entry->addend; @@ -1300,59 +1314,8 @@ space consuming. For each target: = R R R R R R R R R R put into bfd_put */ -#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; } @@ -1388,7 +1351,8 @@ _bfd_final_link_relocate (reloc_howto_type *howto, bfd_vma addend) { bfd_vma relocation; - bfd_size_type octets = address * bfd_octets_per_byte (input_bfd); + bfd_size_type octets = (address + * bfd_octets_per_byte (input_bfd, input_section)); /* Sanity check the address. */ if (!bfd_reloc_offset_in_range (howto, input_bfd, input_section, octets)) @@ -1419,8 +1383,7 @@ _bfd_final_link_relocate (reloc_howto_type *howto, } return _bfd_relocate_contents (howto, input_bfd, relocation, - contents - + address * bfd_octets_per_byte (input_bfd)); + contents + octets); } /* Relocate a given location using a given value and howto. */ @@ -1431,42 +1394,16 @@ _bfd_relocate_contents (reloc_howto_type *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: - abort (); - case 0: - return bfd_reloc_ok; - 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 @@ -1572,28 +1509,7 @@ _bfd_relocate_contents (reloc_howto_type *howto, | (((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; } @@ -1602,74 +1518,35 @@ _bfd_relocate_contents (reloc_howto_type *howto, relocations against discarded symbols, to make ignorable debug or unwind information more obvious. */ -void +bfd_reloc_status_type _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, asection *input_section, - bfd_byte *location) + bfd_byte *buf, + bfd_vma off) { - int size; - bfd_vma x = 0; + bfd_vma x; + bfd_byte *location; + + if (!bfd_reloc_offset_in_range (howto, input_bfd, input_section, off)) + return bfd_reloc_outofrange; /* Get the value we are going to relocate. */ - size = bfd_get_reloc_size (howto); - switch (size) - { - default: - abort (); - case 0: - return; - 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; - } + location = buf + off; + x = read_reloc (input_bfd, location, howto); /* Zero out the unwanted bits of X. */ x &= ~howto->dst_mask; /* For a range list, use 1 instead of 0 as placeholder. 0 would terminate the list, hiding any later entries. */ - if (strcmp (bfd_get_section_name (input_bfd, input_section), - ".debug_ranges") == 0 + if (strcmp (bfd_section_name (input_section), ".debug_ranges") == 0 && (howto->dst_mask & 1) != 0) 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); + return bfd_reloc_ok; } /* @@ -2996,10 +2873,58 @@ 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 +ENUMX + BFD_RELOC_PPC64_D34 +ENUMX + BFD_RELOC_PPC64_D34_LO +ENUMX + BFD_RELOC_PPC64_D34_HI30 +ENUMX + BFD_RELOC_PPC64_D34_HA30 +ENUMX + BFD_RELOC_PPC64_PCREL34 +ENUMX + BFD_RELOC_PPC64_GOT_PCREL34 +ENUMX + BFD_RELOC_PPC64_PLT_PCREL34 +ENUMX + BFD_RELOC_PPC64_ADDR16_HIGHER34 +ENUMX + BFD_RELOC_PPC64_ADDR16_HIGHERA34 +ENUMX + BFD_RELOC_PPC64_ADDR16_HIGHEST34 +ENUMX + BFD_RELOC_PPC64_ADDR16_HIGHESTA34 +ENUMX + BFD_RELOC_PPC64_REL16_HIGHER34 +ENUMX + BFD_RELOC_PPC64_REL16_HIGHERA34 +ENUMX + BFD_RELOC_PPC64_REL16_HIGHEST34 +ENUMX + BFD_RELOC_PPC64_REL16_HIGHESTA34 +ENUMX + BFD_RELOC_PPC64_D28 +ENUMX + BFD_RELOC_PPC64_PCREL28 ENUMDOC Power(rs6000) and PowerPC relocations. @@ -3067,6 +2992,10 @@ ENUMX BFD_RELOC_PPC64_TPREL16_DS ENUMX BFD_RELOC_PPC64_TPREL16_LO_DS +ENUMX + BFD_RELOC_PPC64_TPREL16_HIGH +ENUMX + BFD_RELOC_PPC64_TPREL16_HIGHA ENUMX BFD_RELOC_PPC64_TPREL16_HIGHER ENUMX @@ -3079,6 +3008,10 @@ ENUMX BFD_RELOC_PPC64_DTPREL16_DS ENUMX BFD_RELOC_PPC64_DTPREL16_LO_DS +ENUMX + BFD_RELOC_PPC64_DTPREL16_HIGH +ENUMX + BFD_RELOC_PPC64_DTPREL16_HIGHA ENUMX BFD_RELOC_PPC64_DTPREL16_HIGHER ENUMX @@ -3088,13 +3021,19 @@ ENUMX ENUMX BFD_RELOC_PPC64_DTPREL16_HIGHESTA ENUMX - BFD_RELOC_PPC64_TPREL16_HIGH + BFD_RELOC_PPC64_TPREL34 ENUMX - BFD_RELOC_PPC64_TPREL16_HIGHA + BFD_RELOC_PPC64_DTPREL34 ENUMX - BFD_RELOC_PPC64_DTPREL16_HIGH + BFD_RELOC_PPC64_GOT_TLSGD34 ENUMX - BFD_RELOC_PPC64_DTPREL16_HIGHA + BFD_RELOC_PPC64_GOT_TLSLD34 +ENUMX + BFD_RELOC_PPC64_GOT_TPREL34 +ENUMX + BFD_RELOC_PPC64_GOT_DTPREL34 +ENUMX + BFD_RELOC_PPC64_TLS_PCREL ENUMDOC PowerPC and PowerPC64 thread-local storage relocations. @@ -3136,6 +3075,36 @@ ENUM ENUMDOC ARM 26-bit pc-relative branch for B or conditional BL instruction. +ENUM + BFD_RELOC_THUMB_PCREL_BRANCH5 +ENUMDOC + ARM 5-bit pc-relative branch for Branch Future instructions. + +ENUM + BFD_RELOC_THUMB_PCREL_BFCSEL +ENUMDOC + ARM 6-bit pc-relative branch for BFCSEL instruction. + +ENUM + BFD_RELOC_ARM_THUMB_BF17 +ENUMDOC + ARM 17-bit pc-relative branch for Branch Future instructions. + +ENUM + BFD_RELOC_ARM_THUMB_BF13 +ENUMDOC + ARM 13-bit pc-relative branch for BFCSEL instruction. + +ENUM + BFD_RELOC_ARM_THUMB_BF19 +ENUMDOC + ARM 19-bit pc-relative branch for Branch Future Link instruction. + +ENUM + BFD_RELOC_ARM_THUMB_LOOP12 +ENUMDOC + ARM 12-bit pc-relative branch for Low Overhead Loop instructions. + ENUM BFD_RELOC_THUMB_PCREL_BRANCH7 ENUMX @@ -3215,6 +3184,12 @@ 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. @@ -3378,6 +3353,8 @@ ENUMX BFD_RELOC_ARM_T32_CP_OFF_IMM ENUMX BFD_RELOC_ARM_T32_CP_OFF_IMM_S2 +ENUMX + BFD_RELOC_ARM_T32_VLDR_VSTR_OFF_IMM ENUMX BFD_RELOC_ARM_ADR_IMM ENUMX @@ -4376,32 +4353,66 @@ ENUMDOC 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 @@ -5943,87 +5954,11 @@ ENUMDOC This is the 8 bit high part of an absolute address and immediately follows a matching LO8XG part. ENUM - BFD_RELOC_16C_NUM08 -ENUMX - BFD_RELOC_16C_NUM08_C -ENUMX - BFD_RELOC_16C_NUM16 -ENUMX - BFD_RELOC_16C_NUM16_C -ENUMX - BFD_RELOC_16C_NUM32 -ENUMX - BFD_RELOC_16C_NUM32_C -ENUMX - BFD_RELOC_16C_DISP04 -ENUMX - BFD_RELOC_16C_DISP04_C -ENUMX - BFD_RELOC_16C_DISP08 -ENUMX - BFD_RELOC_16C_DISP08_C -ENUMX - BFD_RELOC_16C_DISP16 -ENUMX - BFD_RELOC_16C_DISP16_C -ENUMX - BFD_RELOC_16C_DISP24 -ENUMX - BFD_RELOC_16C_DISP24_C -ENUMX - BFD_RELOC_16C_DISP24a -ENUMX - BFD_RELOC_16C_DISP24a_C -ENUMX - BFD_RELOC_16C_REG04 -ENUMX - BFD_RELOC_16C_REG04_C -ENUMX - BFD_RELOC_16C_REG04a -ENUMX - BFD_RELOC_16C_REG04a_C -ENUMX - BFD_RELOC_16C_REG14 -ENUMX - BFD_RELOC_16C_REG14_C -ENUMX - BFD_RELOC_16C_REG16 -ENUMX - BFD_RELOC_16C_REG16_C -ENUMX - BFD_RELOC_16C_REG20 -ENUMX - BFD_RELOC_16C_REG20_C -ENUMX - BFD_RELOC_16C_ABS20 -ENUMX - BFD_RELOC_16C_ABS20_C -ENUMX - BFD_RELOC_16C_ABS24 -ENUMX - BFD_RELOC_16C_ABS24_C -ENUMX - BFD_RELOC_16C_IMM04 -ENUMX - BFD_RELOC_16C_IMM04_C -ENUMX - BFD_RELOC_16C_IMM16 -ENUMX - BFD_RELOC_16C_IMM16_C -ENUMX - BFD_RELOC_16C_IMM20 -ENUMX - BFD_RELOC_16C_IMM20_C -ENUMX - BFD_RELOC_16C_IMM24 -ENUMX - BFD_RELOC_16C_IMM24_C -ENUMX - BFD_RELOC_16C_IMM32 -ENUMX - BFD_RELOC_16C_IMM32_C + BFD_RELOC_S12Z_15_PCREL ENUMDOC - NS CR16C Relocations. + 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_CR16_NUM8 @@ -6228,18 +6163,30 @@ ENUMDOC ENUM BFD_RELOC_OR1K_REL_26 +ENUMX + BFD_RELOC_OR1K_SLO16 +ENUMX + BFD_RELOC_OR1K_PCREL_PG21 +ENUMX + BFD_RELOC_OR1K_LO13 +ENUMX + 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 @@ -6252,22 +6199,40 @@ 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 @@ -6708,6 +6673,30 @@ ENUM BFD_RELOC_Z80_DISP8 ENUMDOC 8 bit signed offset in (ix+d) or (iy+d). +ENUM + BFD_RELOC_Z80_BYTE0 +ENUMDOC + First 8 bits of multibyte (32, 24 or 16 bit) value. +ENUM + BFD_RELOC_Z80_BYTE1 +ENUMDOC + Second 8 bits of multibyte (32, 24 or 16 bit) value. +ENUM + BFD_RELOC_Z80_BYTE2 +ENUMDOC + Third 8 bits of multibyte (32 or 24 bit) value. +ENUM + BFD_RELOC_Z80_BYTE3 +ENUMDOC + Fourth 8 bits of multibyte (32 bit) value. +ENUM + BFD_RELOC_Z80_WORD0 +ENUMDOC + Lowest 16 bits of multibyte (32 or 24 bit) value. +ENUM + BFD_RELOC_Z80_WORD1 +ENUMDOC + Highest 16 bits of multibyte (32 or 24 bit) value. ENUM BFD_RELOC_Z8K_DISP7 @@ -6793,6 +6782,10 @@ ENUM 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 @@ -7892,6 +7885,19 @@ ENUMX ENUMDOC Tilera TILE-Gx Relocations. +ENUM + BFD_RELOC_BPF_64 +ENUMX + BFD_RELOC_BPF_32 +ENUMX + BFD_RELOC_BPF_16 +ENUMX + BFD_RELOC_BPF_DISP16 +ENUMX + BFD_RELOC_BPF_DISP32 +ENUMDOC + Linux eBPF relocations. + ENUM BFD_RELOC_EPIPHANY_SIMM8 ENUMDOC @@ -7961,6 +7967,144 @@ ENUMX 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. + +ENUM + BFD_RELOC_S12Z_OPR +ENUMDOC + S12Z relocations. + ENDSENUM BFD_RELOC_UNUSED CODE_FRAGMENT @@ -8017,28 +8161,11 @@ DESCRIPTION reloc_howto_type * bfd_default_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) { - switch (code) - { - case BFD_RELOC_CTOR: - /* The type of reloc used in a ctor, which will be as wide as the - address - so either a 64, 32, or 16 bitter. */ - switch (bfd_arch_bits_per_address (abfd)) - { - case 64: - BFD_FAIL (); - break; - case 32: - return &bfd_howto_32; - case 16: - BFD_FAIL (); - break; - default: - BFD_FAIL (); - } - break; - default: - BFD_FAIL (); - } + /* Very limited support is provided for relocs in generic targets + such as elf32-little. FIXME: Should we always return NULL? */ + if (code == BFD_RELOC_CTOR + && bfd_arch_bits_per_address (abfd) == 32) + return &bfd_howto_32; return NULL; } @@ -8239,16 +8366,28 @@ bfd_generic_get_relocated_section_contents (bfd *abfd, goto error_return; } - if (symbol->section && discarded_section (symbol->section)) + /* 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; + bfd_vma off; static reloc_howto_type none_howto = HOWTO (0, 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, "unused", FALSE, 0, 0, FALSE); - p = data + (*parent)->address * bfd_octets_per_byte (input_bfd); - _bfd_clear_contents ((*parent)->howto, input_bfd, input_section, - p); + off = ((*parent)->address + * bfd_octets_per_byte (input_bfd, input_section)); + _bfd_clear_contents ((*parent)->howto, input_bfd, + input_section, data, off); (*parent)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; (*parent)->addend = 0; (*parent)->howto = &none_howto;