12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337 |
- /* BFD back-end for National Semiconductor's CRX ELF
- Copyright (C) 2004-2015 Free Software Foundation, Inc.
- Written by Tomer Levi, NSC, Israel.
- This file is part of BFD, the Binary File Descriptor library.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
- MA 02110-1301, USA. */
- #include "sysdep.h"
- #include "bfd.h"
- #include "bfdlink.h"
- #include "libbfd.h"
- #include "elf-bfd.h"
- #include "elf/crx.h"
- static reloc_howto_type *elf_crx_reloc_type_lookup
- (bfd *, bfd_reloc_code_real_type);
- static void elf_crx_info_to_howto
- (bfd *, arelent *, Elf_Internal_Rela *);
- static bfd_boolean elf32_crx_relax_delete_bytes
- (struct bfd_link_info *, bfd *, asection *, bfd_vma, int);
- static bfd_reloc_status_type crx_elf_final_link_relocate
- (reloc_howto_type *, bfd *, bfd *, asection *,
- bfd_byte *, bfd_vma, bfd_vma, bfd_vma,
- struct bfd_link_info *, asection *, int);
- static bfd_boolean elf32_crx_relocate_section
- (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
- static bfd_boolean elf32_crx_relax_section
- (bfd *, asection *, struct bfd_link_info *, bfd_boolean *);
- static bfd_byte * elf32_crx_get_relocated_section_contents
- (bfd *, struct bfd_link_info *, struct bfd_link_order *,
- bfd_byte *, bfd_boolean, asymbol **);
- /* crx_reloc_map array maps BFD relocation enum into a CRGAS relocation type. */
- struct crx_reloc_map
- {
- bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */
- unsigned short crx_reloc_type; /* CRX relocation type. */
- };
- static const struct crx_reloc_map crx_reloc_map[R_CRX_MAX] =
- {
- {BFD_RELOC_NONE, R_CRX_NONE},
- {BFD_RELOC_CRX_REL4, R_CRX_REL4},
- {BFD_RELOC_CRX_REL8, R_CRX_REL8},
- {BFD_RELOC_CRX_REL8_CMP, R_CRX_REL8_CMP},
- {BFD_RELOC_CRX_REL16, R_CRX_REL16},
- {BFD_RELOC_CRX_REL24, R_CRX_REL24},
- {BFD_RELOC_CRX_REL32, R_CRX_REL32},
- {BFD_RELOC_CRX_REGREL12, R_CRX_REGREL12},
- {BFD_RELOC_CRX_REGREL22, R_CRX_REGREL22},
- {BFD_RELOC_CRX_REGREL28, R_CRX_REGREL28},
- {BFD_RELOC_CRX_REGREL32, R_CRX_REGREL32},
- {BFD_RELOC_CRX_ABS16, R_CRX_ABS16},
- {BFD_RELOC_CRX_ABS32, R_CRX_ABS32},
- {BFD_RELOC_CRX_NUM8, R_CRX_NUM8},
- {BFD_RELOC_CRX_NUM16, R_CRX_NUM16},
- {BFD_RELOC_CRX_NUM32, R_CRX_NUM32},
- {BFD_RELOC_CRX_IMM16, R_CRX_IMM16},
- {BFD_RELOC_CRX_IMM32, R_CRX_IMM32},
- {BFD_RELOC_CRX_SWITCH8, R_CRX_SWITCH8},
- {BFD_RELOC_CRX_SWITCH16, R_CRX_SWITCH16},
- {BFD_RELOC_CRX_SWITCH32, R_CRX_SWITCH32}
- };
- static reloc_howto_type crx_elf_howto_table[] =
- {
- HOWTO (R_CRX_NONE, /* type */
- 0, /* rightshift */
- 3, /* size */
- 0, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_NONE", /* name */
- FALSE, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REL4, /* type */
- 1, /* rightshift */
- 0, /* size */
- 4, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REL4", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xf, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REL8, /* type */
- 1, /* rightshift */
- 0, /* size */
- 8, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REL8", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REL8_CMP, /* type */
- 1, /* rightshift */
- 0, /* size */
- 8, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REL8_CMP", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REL16, /* type */
- 1, /* rightshift */
- 1, /* size */
- 16, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REL16", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REL24, /* type */
- 1, /* rightshift */
- 2, /* size */
- 24, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REL24", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REL32, /* type */
- 1, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- TRUE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REL32", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REGREL12, /* type */
- 0, /* rightshift */
- 1, /* size */
- 12, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REGREL12", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xfff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REGREL22, /* type */
- 0, /* rightshift */
- 2, /* size */
- 22, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REGREL22", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0x3fffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REGREL28, /* type */
- 0, /* rightshift */
- 2, /* size */
- 28, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REGREL28", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xfffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_REGREL32, /* type */
- 0, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_REGREL32", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_ABS16, /* type */
- 0, /* rightshift */
- 1, /* size */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_ABS16", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_ABS32, /* type */
- 0, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_ABS32", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_NUM8, /* type */
- 0, /* rightshift */
- 0, /* size */
- 8, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_NUM8", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_NUM16, /* type */
- 0, /* rightshift */
- 1, /* size */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_NUM16", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_NUM32, /* type */
- 0, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_NUM32", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_IMM16, /* type */
- 0, /* rightshift */
- 1, /* size */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_IMM16", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- HOWTO (R_CRX_IMM32, /* type */
- 0, /* rightshift */
- 2, /* size */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_IMM32", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- FALSE), /* pcrel_offset */
- /* An 8 bit switch table entry. This is generated for an expression
- such as ``.byte L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_CRX_SWITCH8, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_SWITCH8", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xff, /* dst_mask */
- TRUE), /* pcrel_offset */
- /* A 16 bit switch table entry. This is generated for an expression
- such as ``.word L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_CRX_SWITCH16, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_SWITCH16", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffff, /* dst_mask */
- TRUE), /* pcrel_offset */
- /* A 32 bit switch table entry. This is generated for an expression
- such as ``.long L1 - L2''. The offset holds the difference
- between the reloc address and L2. */
- HOWTO (R_CRX_SWITCH32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- FALSE, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_unsigned, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_CRX_SWITCH32", /* name */
- FALSE, /* partial_inplace */
- 0x0, /* src_mask */
- 0xffffffff, /* dst_mask */
- TRUE) /* pcrel_offset */
- };
- /* Retrieve a howto ptr using a BFD reloc_code. */
- static reloc_howto_type *
- elf_crx_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- bfd_reloc_code_real_type code)
- {
- unsigned int i;
- for (i = 0; i < R_CRX_MAX; i++)
- if (code == crx_reloc_map[i].bfd_reloc_enum)
- return &crx_elf_howto_table[crx_reloc_map[i].crx_reloc_type];
- printf ("This relocation Type is not supported -0x%x\n", code);
- return 0;
- }
- static reloc_howto_type *
- elf_crx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- const char *r_name)
- {
- unsigned int i;
- for (i = 0;
- i < sizeof (crx_elf_howto_table) / sizeof (crx_elf_howto_table[0]);
- i++)
- if (crx_elf_howto_table[i].name != NULL
- && strcasecmp (crx_elf_howto_table[i].name, r_name) == 0)
- return &crx_elf_howto_table[i];
- return NULL;
- }
- /* Retrieve a howto ptr using an internal relocation entry. */
- static void
- elf_crx_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
- Elf_Internal_Rela *dst)
- {
- unsigned int r_type = ELF32_R_TYPE (dst->r_info);
- if (r_type >= R_CRX_MAX)
- {
- (*_bfd_error_handler) (_("%B: unrecognised CRX reloc number: %d"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- r_type = R_CRX_NONE;
- }
- cache_ptr->howto = &crx_elf_howto_table[r_type];
- }
- /* Perform a relocation as part of a final link. */
- static bfd_reloc_status_type
- crx_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd,
- bfd *output_bfd ATTRIBUTE_UNUSED,
- asection *input_section, bfd_byte *contents,
- bfd_vma offset, bfd_vma Rvalue, bfd_vma addend,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec ATTRIBUTE_UNUSED,
- int is_local ATTRIBUTE_UNUSED)
- {
- unsigned short r_type = howto->type;
- bfd_byte *hit_data = contents + offset;
- bfd_vma reloc_bits, check;
- switch (r_type)
- {
- case R_CRX_IMM16:
- case R_CRX_IMM32:
- case R_CRX_ABS16:
- case R_CRX_ABS32:
- case R_CRX_REL8_CMP:
- case R_CRX_REL16:
- case R_CRX_REL24:
- case R_CRX_REL32:
- case R_CRX_REGREL12:
- case R_CRX_REGREL22:
- case R_CRX_REGREL28:
- case R_CRX_REGREL32:
- /* 'hit_data' is relative to the start of the instruction, not the
- relocation offset. Advance it to account for the exact offset. */
- hit_data += 2;
- break;
- case R_CRX_REL4:
- /* This relocation type is used only in 'Branch if Equal to 0'
- instructions and requires special handling. */
- Rvalue -= 1;
- break;
- case R_CRX_NONE:
- return bfd_reloc_ok;
- break;
- case R_CRX_SWITCH8:
- case R_CRX_SWITCH16:
- case R_CRX_SWITCH32:
- /* We only care about the addend, where the difference between
- expressions is kept. */
- Rvalue = 0;
- default:
- break;
- }
- if (howto->pc_relative)
- {
- /* Subtract the address of the section containing the location. */
- Rvalue -= (input_section->output_section->vma
- + input_section->output_offset);
- /* Subtract the position of the location within the section. */
- Rvalue -= offset;
- }
- /* Add in supplied addend. */
- Rvalue += addend;
- /* Complain if the bitfield overflows, whether it is considered
- as signed or unsigned. */
- check = Rvalue >> howto->rightshift;
- /* Assumes two's complement. This expression avoids
- overflow if howto->bitsize is the number of bits in
- bfd_vma. */
- reloc_bits = (((1 << (howto->bitsize - 1)) - 1) << 1) | 1;
- if (((bfd_vma) check & ~reloc_bits) != 0
- && (((bfd_vma) check & ~reloc_bits)
- != (-(bfd_vma) 1 & ~reloc_bits)))
- {
- /* The above right shift is incorrect for a signed
- value. See if turning on the upper bits fixes the
- overflow. */
- if (howto->rightshift && (bfd_signed_vma) Rvalue < 0)
- {
- check |= ((bfd_vma) - 1
- & ~((bfd_vma) - 1
- >> howto->rightshift));
- if (((bfd_vma) check & ~reloc_bits)
- != (-(bfd_vma) 1 & ~reloc_bits))
- return bfd_reloc_overflow;
- }
- else
- return bfd_reloc_overflow;
- }
- /* Drop unwanted bits from the value we are relocating to. */
- Rvalue >>= (bfd_vma) howto->rightshift;
- /* Apply dst_mask to select only relocatable part of the insn. */
- Rvalue &= howto->dst_mask;
- switch (howto->size)
- {
- case 0:
- if (r_type == R_CRX_REL4)
- {
- Rvalue <<= 4;
- Rvalue |= (bfd_get_8 (input_bfd, hit_data) & 0x0f);
- }
- bfd_put_8 (input_bfd, (unsigned char) Rvalue, hit_data);
- break;
- case 1:
- if (r_type == R_CRX_REGREL12)
- Rvalue |= (bfd_get_16 (input_bfd, hit_data) & 0xf000);
- bfd_put_16 (input_bfd, Rvalue, hit_data);
- break;
- case 2:
- if (r_type == R_CRX_REL24
- || r_type == R_CRX_REGREL22
- || r_type == R_CRX_REGREL28)
- Rvalue |= (((bfd_get_16 (input_bfd, hit_data) << 16) |
- bfd_get_16 (input_bfd, hit_data + 2)) & ~howto->dst_mask);
- if (r_type == R_CRX_NUM32 || r_type == R_CRX_SWITCH32)
- /* Relocation on DATA is purely little-endian, that is, for a
- multi-byte datum, the lowest address in memory contains the
- little end of the datum, that is, the least significant byte.
- Therefore we use BFD's byte Putting functions. */
- bfd_put_32 (input_bfd, Rvalue, hit_data);
- else
- /* Relocation on INSTRUCTIONS is different : Instructions are
- word-addressable, that is, each word itself is arranged according
- to little-endian convention, whereas the words are arranged with
- respect to one another in BIG ENDIAN fashion.
- When there is an immediate value that spans a word boundary, it is
- split in a big-endian way with respect to the words. */
- {
- bfd_put_16 (input_bfd, (Rvalue >> 16) & 0xffff, hit_data);
- bfd_put_16 (input_bfd, Rvalue & 0xffff, hit_data + 2);
- }
- break;
- default:
- return bfd_reloc_notsupported;
- }
- return bfd_reloc_ok;
- }
- /* Delete some bytes from a section while relaxing. */
- static bfd_boolean
- elf32_crx_relax_delete_bytes (struct bfd_link_info *link_info, bfd *abfd,
- asection *sec, bfd_vma addr, int count)
- {
- Elf_Internal_Shdr *symtab_hdr;
- unsigned int sec_shndx;
- bfd_byte *contents;
- Elf_Internal_Rela *irel, *irelend;
- bfd_vma toaddr;
- Elf_Internal_Sym *isym;
- Elf_Internal_Sym *isymend;
- struct elf_link_hash_entry **sym_hashes;
- struct elf_link_hash_entry **end_hashes;
- struct elf_link_hash_entry **start_hashes;
- unsigned int symcount;
- sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
- contents = elf_section_data (sec)->this_hdr.contents;
- toaddr = sec->size;
- irel = elf_section_data (sec)->relocs;
- irelend = irel + sec->reloc_count;
- /* Actually delete the bytes. */
- memmove (contents + addr, contents + addr + count,
- (size_t) (toaddr - addr - count));
- sec->size -= count;
- /* Adjust all the relocs. */
- for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
- {
- /* Get the new reloc address. */
- if ((irel->r_offset > addr
- && irel->r_offset < toaddr))
- irel->r_offset -= count;
- }
- /* Adjust the local symbols defined in this section. */
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- isym = (Elf_Internal_Sym *) symtab_hdr->contents;
- for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++)
- {
- if (isym->st_shndx == sec_shndx
- && isym->st_value > addr
- && isym->st_value < toaddr)
- {
- /* Adjust the addend of SWITCH relocations in this section,
- which reference this local symbol. */
- for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
- {
- unsigned long r_symndx;
- Elf_Internal_Sym *rsym;
- bfd_vma addsym, subsym;
- /* Skip if not a SWITCH relocation. */
- if (ELF32_R_TYPE (irel->r_info) != (int) R_CRX_SWITCH8
- && ELF32_R_TYPE (irel->r_info) != (int) R_CRX_SWITCH16
- && ELF32_R_TYPE (irel->r_info) != (int) R_CRX_SWITCH32)
- continue;
- r_symndx = ELF32_R_SYM (irel->r_info);
- rsym = (Elf_Internal_Sym *) symtab_hdr->contents + r_symndx;
- /* Skip if not the local adjusted symbol. */
- if (rsym != isym)
- continue;
- addsym = isym->st_value;
- subsym = addsym - irel->r_addend;
- /* Fix the addend only when -->> (addsym > addr >= subsym). */
- if (subsym <= addr)
- irel->r_addend -= count;
- else
- continue;
- }
- isym->st_value -= count;
- }
- }
- /* Now adjust the global symbols defined in this section. */
- symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- - symtab_hdr->sh_info);
- sym_hashes = start_hashes = elf_sym_hashes (abfd);
- end_hashes = sym_hashes + symcount;
- for (; sym_hashes < end_hashes; sym_hashes++)
- {
- struct elf_link_hash_entry *sym_hash = *sym_hashes;
- /* The '--wrap SYMBOL' option is causing a pain when the object file,
- containing the definition of __wrap_SYMBOL, includes a direct
- call to SYMBOL as well. Since both __wrap_SYMBOL and SYMBOL reference
- the same symbol (which is __wrap_SYMBOL), but still exist as two
- different symbols in 'sym_hashes', we don't want to adjust
- the global symbol __wrap_SYMBOL twice.
- This check is only relevant when symbols are being wrapped. */
- if (link_info->wrap_hash != NULL)
- {
- struct elf_link_hash_entry **cur_sym_hashes;
- /* Loop only over the symbols whom been already checked. */
- for (cur_sym_hashes = start_hashes; cur_sym_hashes < sym_hashes;
- cur_sym_hashes++)
- {
- /* If the current symbol is identical to 'sym_hash', that means
- the symbol was already adjusted (or at least checked). */
- if (*cur_sym_hashes == sym_hash)
- break;
- }
- /* Don't adjust the symbol again. */
- if (cur_sym_hashes < sym_hashes)
- continue;
- }
- if ((sym_hash->root.type == bfd_link_hash_defined
- || sym_hash->root.type == bfd_link_hash_defweak)
- && sym_hash->root.u.def.section == sec
- && sym_hash->root.u.def.value > addr
- && sym_hash->root.u.def.value < toaddr)
- sym_hash->root.u.def.value -= count;
- }
- return TRUE;
- }
- /* This is a version of bfd_generic_get_relocated_section_contents
- which uses elf32_crx_relocate_section. */
- static bfd_byte *
- elf32_crx_get_relocated_section_contents (bfd *output_bfd,
- struct bfd_link_info *link_info,
- struct bfd_link_order *link_order,
- bfd_byte *data,
- bfd_boolean relocatable,
- asymbol **symbols)
- {
- Elf_Internal_Shdr *symtab_hdr;
- asection *input_section = link_order->u.indirect.section;
- bfd *input_bfd = input_section->owner;
- asection **sections = NULL;
- Elf_Internal_Rela *internal_relocs = NULL;
- Elf_Internal_Sym *isymbuf = NULL;
- /* We only need to handle the case of relaxing, or of having a
- particular set of section contents, specially. */
- if (relocatable
- || elf_section_data (input_section)->this_hdr.contents == NULL)
- return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
- link_order, data,
- relocatable,
- symbols);
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- memcpy (data, elf_section_data (input_section)->this_hdr.contents,
- (size_t) input_section->size);
- if ((input_section->flags & SEC_RELOC) != 0
- && input_section->reloc_count > 0)
- {
- Elf_Internal_Sym *isym;
- Elf_Internal_Sym *isymend;
- asection **secpp;
- bfd_size_type amt;
- internal_relocs = (_bfd_elf_link_read_relocs
- (input_bfd, input_section, NULL,
- (Elf_Internal_Rela *) NULL, FALSE));
- if (internal_relocs == NULL)
- goto error_return;
- if (symtab_hdr->sh_info != 0)
- {
- isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- if (isymbuf == NULL)
- isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
- symtab_hdr->sh_info, 0,
- NULL, NULL, NULL);
- if (isymbuf == NULL)
- goto error_return;
- }
- amt = symtab_hdr->sh_info;
- amt *= sizeof (asection *);
- sections = bfd_malloc (amt);
- if (sections == NULL && amt != 0)
- goto error_return;
- isymend = isymbuf + symtab_hdr->sh_info;
- for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
- {
- asection *isec;
- if (isym->st_shndx == SHN_UNDEF)
- isec = bfd_und_section_ptr;
- else if (isym->st_shndx == SHN_ABS)
- isec = bfd_abs_section_ptr;
- else if (isym->st_shndx == SHN_COMMON)
- isec = bfd_com_section_ptr;
- else
- isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
- *secpp = isec;
- }
- if (! elf32_crx_relocate_section (output_bfd, link_info, input_bfd,
- input_section, data, internal_relocs,
- isymbuf, sections))
- goto error_return;
- if (sections != NULL)
- free (sections);
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (elf_section_data (input_section)->relocs != internal_relocs)
- free (internal_relocs);
- }
- return data;
- error_return:
- if (sections != NULL)
- free (sections);
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (internal_relocs != NULL
- && elf_section_data (input_section)->relocs != internal_relocs)
- free (internal_relocs);
- return NULL;
- }
- /* Relocate a CRX ELF section. */
- static bfd_boolean
- elf32_crx_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
- bfd *input_bfd, asection *input_section,
- bfd_byte *contents, Elf_Internal_Rela *relocs,
- Elf_Internal_Sym *local_syms,
- asection **local_sections)
- {
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- Elf_Internal_Rela *rel, *relend;
- symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (input_bfd);
- rel = relocs;
- relend = relocs + input_section->reloc_count;
- for (; rel < relend; rel++)
- {
- int r_type;
- reloc_howto_type *howto;
- unsigned long r_symndx;
- Elf_Internal_Sym *sym;
- asection *sec;
- struct elf_link_hash_entry *h;
- bfd_vma relocation;
- bfd_reloc_status_type r;
- r_symndx = ELF32_R_SYM (rel->r_info);
- r_type = ELF32_R_TYPE (rel->r_info);
- howto = crx_elf_howto_table + (r_type);
- h = NULL;
- sym = NULL;
- sec = NULL;
- if (r_symndx < symtab_hdr->sh_info)
- {
- sym = local_syms + r_symndx;
- sec = local_sections[r_symndx];
- relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
- }
- else
- {
- bfd_boolean unresolved_reloc, warned, ignored;
- RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
- r_symndx, symtab_hdr, sym_hashes,
- h, sec, relocation,
- unresolved_reloc, warned, ignored);
- }
- if (sec != NULL && discarded_section (sec))
- RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
- rel, 1, relend, howto, 0, contents);
- if (bfd_link_relocatable (info))
- continue;
- r = crx_elf_final_link_relocate (howto, input_bfd, output_bfd,
- input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend,
- info, sec, h == NULL);
- if (r != bfd_reloc_ok)
- {
- const char *name;
- const char *msg = (const char *) 0;
- if (h != NULL)
- name = h->root.root.string;
- else
- {
- name = (bfd_elf_string_from_elf_section
- (input_bfd, symtab_hdr->sh_link, sym->st_name));
- if (name == NULL || *name == '\0')
- name = bfd_section_name (input_bfd, sec);
- }
- switch (r)
- {
- case bfd_reloc_overflow:
- if (!((*info->callbacks->reloc_overflow)
- (info, (h ? &h->root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
- break;
- case bfd_reloc_undefined:
- if (!((*info->callbacks->undefined_symbol)
- (info, name, input_bfd, input_section,
- rel->r_offset, TRUE)))
- return FALSE;
- break;
- case bfd_reloc_outofrange:
- msg = _("internal error: out of range error");
- goto common_error;
- case bfd_reloc_notsupported:
- msg = _("internal error: unsupported relocation error");
- goto common_error;
- case bfd_reloc_dangerous:
- msg = _("internal error: dangerous error");
- goto common_error;
- default:
- msg = _("internal error: unknown error");
- /* Fall through. */
- common_error:
- if (!((*info->callbacks->warning)
- (info, msg, name, input_bfd, input_section,
- rel->r_offset)))
- return FALSE;
- break;
- }
- }
- }
- return TRUE;
- }
- /* This function handles relaxing for the CRX.
- There's quite a few relaxing opportunites available on the CRX:
- * bal/bcond:32 -> bal/bcond:16 2 bytes
- * bcond:16 -> bcond:8 2 bytes
- * cmpbcond:24 -> cmpbcond:8 2 bytes
- * arithmetic imm32 -> arithmetic imm16 2 bytes
- Symbol- and reloc-reading infrastructure copied from elf-m10200.c. */
- static bfd_boolean
- elf32_crx_relax_section (bfd *abfd, asection *sec,
- struct bfd_link_info *link_info, bfd_boolean *again)
- {
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *irel, *irelend;
- bfd_byte *contents = NULL;
- Elf_Internal_Sym *isymbuf = NULL;
- /* Assume nothing changes. */
- *again = FALSE;
- /* We don't have to do anything for a relocatable link, if
- this section does not have relocs, or if this is not a
- code section. */
- if (bfd_link_relocatable (link_info)
- || (sec->flags & SEC_RELOC) == 0
- || sec->reloc_count == 0
- || (sec->flags & SEC_CODE) == 0)
- return TRUE;
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- /* Get a copy of the native relocations. */
- internal_relocs = (_bfd_elf_link_read_relocs
- (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
- link_info->keep_memory));
- if (internal_relocs == NULL)
- goto error_return;
- /* Walk through them looking for relaxing opportunities. */
- irelend = internal_relocs + sec->reloc_count;
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- bfd_vma symval;
- /* If this isn't something that can be relaxed, then ignore
- this reloc. */
- if (ELF32_R_TYPE (irel->r_info) != (int) R_CRX_REL32
- && ELF32_R_TYPE (irel->r_info) != (int) R_CRX_REL16
- && ELF32_R_TYPE (irel->r_info) != (int) R_CRX_REL24
- && ELF32_R_TYPE (irel->r_info) != (int) R_CRX_IMM32)
- continue;
- /* Get the section contents if we haven't done so already. */
- if (contents == NULL)
- {
- /* Get cached copy if it exists. */
- if (elf_section_data (sec)->this_hdr.contents != NULL)
- contents = elf_section_data (sec)->this_hdr.contents;
- /* Go get them off disk. */
- else if (!bfd_malloc_and_get_section (abfd, sec, &contents))
- goto error_return;
- }
- /* Read this BFD's local symbols if we haven't done so already. */
- if (isymbuf == NULL && symtab_hdr->sh_info != 0)
- {
- isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- if (isymbuf == NULL)
- isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
- symtab_hdr->sh_info, 0,
- NULL, NULL, NULL);
- if (isymbuf == NULL)
- goto error_return;
- }
- /* Get the value of the symbol referred to by the reloc. */
- if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
- {
- /* A local symbol. */
- Elf_Internal_Sym *isym;
- asection *sym_sec;
- isym = isymbuf + ELF32_R_SYM (irel->r_info);
- if (isym->st_shndx == SHN_UNDEF)
- sym_sec = bfd_und_section_ptr;
- else if (isym->st_shndx == SHN_ABS)
- sym_sec = bfd_abs_section_ptr;
- else if (isym->st_shndx == SHN_COMMON)
- sym_sec = bfd_com_section_ptr;
- else
- sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
- symval = (isym->st_value
- + sym_sec->output_section->vma
- + sym_sec->output_offset);
- }
- else
- {
- unsigned long indx;
- struct elf_link_hash_entry *h;
- /* An external symbol. */
- indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
- h = elf_sym_hashes (abfd)[indx];
- BFD_ASSERT (h != NULL);
- if (h->root.type != bfd_link_hash_defined
- && h->root.type != bfd_link_hash_defweak)
- /* This appears to be a reference to an undefined
- symbol. Just ignore it--it will be caught by the
- regular reloc processing. */
- continue;
- symval = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- }
- /* For simplicity of coding, we are going to modify the section
- contents, the section relocs, and the BFD symbol table. We
- must tell the rest of the code not to free up this
- information. It would be possible to instead create a table
- of changes which have to be made, as is done in coff-mips.c;
- that would be more work, but would require less memory when
- the linker is run. */
- /* Try to turn a 32bit pc-relative branch/call into
- a 16bit pc-relative branch/call. */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CRX_REL32)
- {
- bfd_vma value = symval;
- /* Deal with pc-relative gunk. */
- value -= (sec->output_section->vma + sec->output_offset);
- value -= irel->r_offset;
- value += irel->r_addend;
- /* See if the value will fit in 16 bits, note the high value is
- 0xfffe + 2 as the target will be two bytes closer if we are
- able to relax. */
- if ((long) value < 0x10000 && (long) value > -0x10002)
- {
- unsigned short code;
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
- /* Verify it's a 'bal'/'bcond' and fix the opcode. */
- if ((code & 0xfff0) == 0x3170)
- bfd_put_8 (abfd, 0x30, contents + irel->r_offset + 1);
- else if ((code & 0xf0ff) == 0x707f)
- bfd_put_8 (abfd, 0x7e, contents + irel->r_offset);
- else
- continue;
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CRX_REL16);
- /* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
- /* Try to turn a 16bit pc-relative branch into an
- 8bit pc-relative branch. */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CRX_REL16)
- {
- bfd_vma value = symval;
- /* Deal with pc-relative gunk. */
- value -= (sec->output_section->vma + sec->output_offset);
- value -= irel->r_offset;
- value += irel->r_addend;
- /* See if the value will fit in 8 bits, note the high value is
- 0xfc + 2 as the target will be two bytes closer if we are
- able to relax. */
- if ((long) value < 0xfe && (long) value > -0x100)
- {
- unsigned short code;
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
- /* Verify it's a 'bcond' opcode. */
- if ((code & 0xf0ff) != 0x707e)
- continue;
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CRX_REL8);
- /* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
- /* Try to turn a 24bit pc-relative cmp&branch into
- an 8bit pc-relative cmp&branch. */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CRX_REL24)
- {
- bfd_vma value = symval;
- /* Deal with pc-relative gunk. */
- value -= (sec->output_section->vma + sec->output_offset);
- value -= irel->r_offset;
- value += irel->r_addend;
- /* See if the value will fit in 8 bits, note the high value is
- 0x7e + 2 as the target will be two bytes closer if we are
- able to relax. */
- if ((long) value < 0x100 && (long) value > -0x100)
- {
- unsigned short code;
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
- /* Verify it's a 'cmp&branch' opcode. */
- if ((code & 0xfff0) != 0x3180 && (code & 0xfff0) != 0x3190
- && (code & 0xfff0) != 0x31a0 && (code & 0xfff0) != 0x31c0
- && (code & 0xfff0) != 0x31d0 && (code & 0xfff0) != 0x31e0
- /* Or a Co-processor branch ('bcop'). */
- && (code & 0xfff0) != 0x3010 && (code & 0xfff0) != 0x3110)
- continue;
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
- /* Fix the opcode. */
- bfd_put_8 (abfd, 0x30, contents + irel->r_offset + 1);
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CRX_REL8_CMP);
- /* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 4, 2))
- goto error_return;
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
- /* Try to turn a 32bit immediate address into
- a 16bit immediate address. */
- if (ELF32_R_TYPE (irel->r_info) == (int) R_CRX_IMM32)
- {
- bfd_vma value = symval;
- /* See if the value will fit in 16 bits. */
- if ((long) value < 0x7fff && (long) value > -0x8000)
- {
- unsigned short code;
- /* Get the opcode. */
- code = (unsigned short) bfd_get_16 (abfd, contents + irel->r_offset);
- /* Verify it's a 'arithmetic double'. */
- if ((code & 0xf0f0) != 0x20f0)
- continue;
- /* Note that we've changed the relocs, section contents, etc. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (unsigned char *) isymbuf;
- /* Fix the opcode. */
- bfd_put_8 (abfd, (code & 0xff) - 0x10, contents + irel->r_offset);
- /* Fix the relocation's type. */
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- R_CRX_IMM16);
- /* Delete two bytes of data. */
- if (!elf32_crx_relax_delete_bytes (link_info, abfd, sec,
- irel->r_offset + 2, 2))
- goto error_return;
- /* That will change things, so, we should relax again.
- Note that this is not required, and it may be slow. */
- *again = TRUE;
- }
- }
- }
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- {
- if (! link_info->keep_memory)
- free (isymbuf);
- else
- {
- /* Cache the symbols for elf_link_input_bfd. */
- symtab_hdr->contents = (unsigned char *) isymbuf;
- }
- }
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- {
- if (! link_info->keep_memory)
- free (contents);
- else
- {
- /* Cache the section contents for elf_link_input_bfd. */
- elf_section_data (sec)->this_hdr.contents = contents;
- }
- }
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
- free (internal_relocs);
- return TRUE;
- error_return:
- if (isymbuf != NULL
- && symtab_hdr->contents != (unsigned char *) isymbuf)
- free (isymbuf);
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- free (contents);
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
- free (internal_relocs);
- return FALSE;
- }
- /* Definitions for setting CRX target vector. */
- #define TARGET_LITTLE_SYM crx_elf32_vec
- #define TARGET_LITTLE_NAME "elf32-crx"
- #define ELF_ARCH bfd_arch_crx
- #define ELF_MACHINE_CODE EM_CRX
- #define ELF_MAXPAGESIZE 0x1
- #define elf_symbol_leading_char '_'
- #define bfd_elf32_bfd_reloc_type_lookup elf_crx_reloc_type_lookup
- #define bfd_elf32_bfd_reloc_name_lookup \
- elf_crx_reloc_name_lookup
- #define elf_info_to_howto elf_crx_info_to_howto
- #define elf_info_to_howto_rel 0
- #define elf_backend_relocate_section elf32_crx_relocate_section
- #define bfd_elf32_bfd_relax_section elf32_crx_relax_section
- #define bfd_elf32_bfd_get_relocated_section_contents \
- elf32_crx_get_relocated_section_contents
- #define elf_backend_can_gc_sections 1
- #define elf_backend_rela_normal 1
- #include "elf32-target.h"
|