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- /* V850-specific support for 32-bit ELF
- Copyright (C) 1996-2022 Free Software Foundation, Inc.
- 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. */
- /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char
- dependencies. As is the gas & simulator code for the v850. */
- #include "sysdep.h"
- #include "bfd.h"
- #include "bfdlink.h"
- #include "libbfd.h"
- #include "elf-bfd.h"
- #include "elf/v850.h"
- #include "libiberty.h"
- #include "elf32-v850.h"
- /* Sign-extend a 17-bit number. */
- #define SEXT17(x) ((((x) & 0x1ffff) ^ 0x10000) - 0x10000)
- /* Sign-extend a 22-bit number. */
- #define SEXT22(x) ((((x) & 0x3fffff) ^ 0x200000) - 0x200000)
- static reloc_howto_type v850_elf_howto_table[];
- /* Look through the relocs for a section during the first phase, and
- allocate space in the global offset table or procedure linkage
- table. */
- static bool
- v850_elf_check_relocs (bfd *abfd,
- struct bfd_link_info *info,
- asection *sec,
- const Elf_Internal_Rela *relocs)
- {
- bool ret = true;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- const Elf_Internal_Rela *rel;
- const Elf_Internal_Rela *rel_end;
- unsigned int r_type;
- int other = 0;
- const char *common = NULL;
- if (bfd_link_relocatable (info))
- return true;
- #ifdef DEBUG
- _bfd_error_handler ("v850_elf_check_relocs called for section %pA in %pB",
- sec, abfd);
- #endif
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (abfd);
- rel_end = relocs + sec->reloc_count;
- for (rel = relocs; rel < rel_end; rel++)
- {
- unsigned long r_symndx;
- struct elf_link_hash_entry *h;
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
- else
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- }
- r_type = ELF32_R_TYPE (rel->r_info);
- switch (r_type)
- {
- default:
- break;
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_V850_GNU_VTINHERIT:
- if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return false;
- break;
- /* This relocation describes which C++ vtable entries
- are actually used. Record for later use during GC. */
- case R_V850_GNU_VTENTRY:
- if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return false;
- break;
- case R_V850_SDA_16_16_SPLIT_OFFSET:
- case R_V850_SDA_16_16_OFFSET:
- case R_V850_SDA_15_16_OFFSET:
- case R_V810_GPWLO_1:
- case R_V850_HWLO:
- case R_V850_HWLO_1:
- other = V850_OTHER_SDA;
- common = ".scommon";
- goto small_data_common;
- case R_V850_ZDA_16_16_SPLIT_OFFSET:
- case R_V850_ZDA_16_16_OFFSET:
- case R_V850_ZDA_15_16_OFFSET:
- other = V850_OTHER_ZDA;
- common = ".zcommon";
- goto small_data_common;
- case R_V850_TDA_4_4_OFFSET:
- case R_V850_TDA_4_5_OFFSET:
- case R_V850_TDA_7_7_OFFSET:
- case R_V850_TDA_6_8_OFFSET:
- case R_V850_TDA_7_8_OFFSET:
- case R_V850_TDA_16_16_OFFSET:
- other = V850_OTHER_TDA;
- common = ".tcommon";
- /* fall through */
- #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA)
- small_data_common:
- if (h)
- {
- /* Flag which type of relocation was used. */
- h->other |= other;
- if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
- && (h->other & V850_OTHER_ERROR) == 0)
- {
- const char * msg;
- char *buff;
- switch (h->other & V850_OTHER_MASK)
- {
- default:
- msg = _("variable `%s' cannot occupy in multiple small data regions");
- break;
- case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
- msg = _("variable `%s' can only be in one of the small, zero, and tiny data regions");
- break;
- case V850_OTHER_SDA | V850_OTHER_ZDA:
- msg = _("variable `%s' cannot be in both small and zero data regions simultaneously");
- break;
- case V850_OTHER_SDA | V850_OTHER_TDA:
- msg = _("variable `%s' cannot be in both small and tiny data regions simultaneously");
- break;
- case V850_OTHER_ZDA | V850_OTHER_TDA:
- msg = _("variable `%s' cannot be in both zero and tiny data regions simultaneously");
- break;
- }
- if (asprintf (&buff, msg, h->root.root.string) < 0)
- buff = NULL;
- else
- msg = buff;
- info->callbacks->warning (info, msg, h->root.root.string,
- abfd, h->root.u.def.section,
- (bfd_vma) 0);
- free (buff);
- bfd_set_error (bfd_error_bad_value);
- h->other |= V850_OTHER_ERROR;
- ret = false;
- }
- }
- if (h && h->root.type == bfd_link_hash_common
- && h->root.u.c.p
- && !strcmp (bfd_section_name (h->root.u.c.p->section), "COMMON"))
- {
- asection * section;
- section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
- section->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
- }
- #ifdef DEBUG
- fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
- v850_elf_howto_table[ (int)r_type ].name,
- (h && h->root.root.string) ? h->root.root.string : "<unknown>",
- (h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
- #endif
- break;
- }
- }
- return ret;
- }
- /* In the old version, when an entry was checked out from the table,
- it was deleted. This produced an error if the entry was needed
- more than once, as the second attempted retry failed.
- In the current version, the entry is not deleted, instead we set
- the field 'found' to TRUE. If a second lookup matches the same
- entry, then we know that the hi16s reloc has already been updated
- and does not need to be updated a second time.
- TODO - TOFIX: If it is possible that we need to restore 2 different
- addresses from the same table entry, where the first generates an
- overflow, whilst the second do not, then this code will fail. */
- typedef struct hi16s_location
- {
- bfd_vma addend;
- bfd_byte *address;
- unsigned long counter;
- bool found;
- struct hi16s_location *next;
- }
- hi16s_location;
- static hi16s_location * previous_hi16s;
- static hi16s_location * free_hi16s;
- static unsigned long hi16s_counter;
- static void
- remember_hi16s_reloc (bfd *abfd, bfd_vma addend, bfd_byte *address)
- {
- hi16s_location * entry = NULL;
- size_t amt = sizeof (* free_hi16s);
- /* Find a free structure. */
- if (free_hi16s == NULL)
- free_hi16s = bfd_zalloc (abfd, amt);
- entry = free_hi16s;
- free_hi16s = free_hi16s->next;
- entry->addend = addend;
- entry->address = address;
- entry->counter = hi16s_counter ++;
- entry->found = false;
- entry->next = previous_hi16s;
- previous_hi16s = entry;
- /* Cope with wrap around of our counter. */
- if (hi16s_counter == 0)
- {
- /* XXX: Assume that all counter entries differ only in their low 16 bits. */
- for (entry = previous_hi16s; entry != NULL; entry = entry->next)
- entry->counter &= 0xffff;
- hi16s_counter = 0x10000;
- }
- }
- static bfd_byte *
- find_remembered_hi16s_reloc (bfd_vma addend, bool *already_found)
- {
- hi16s_location *match = NULL;
- hi16s_location *entry;
- bfd_byte *addr;
- /* Search the table. Record the most recent entry that matches. */
- for (entry = previous_hi16s; entry; entry = entry->next)
- {
- if (entry->addend == addend
- && (match == NULL || match->counter < entry->counter))
- {
- match = entry;
- }
- }
- if (match == NULL)
- return NULL;
- /* Extract the address. */
- addr = match->address;
- /* Remember if this entry has already been used before. */
- if (already_found)
- * already_found = match->found;
- /* Note that this entry has now been used. */
- match->found = true;
- return addr;
- }
- /* Calculate the final operand value for a R_V850_LO16 or
- R_V850_LO16_SPLIT_OFFSET. *INSN is the current operand value and
- ADDEND is the sum of the relocation symbol and offset. Store the
- operand value in *INSN and return true on success.
- The assembler has already done some of this: If the value stored in
- the instruction has its 15th bit set, (counting from zero) then the
- assembler will have added 1 to the value stored in the associated
- HI16S reloc. So for example, these relocations:
- movhi hi( fred ), r0, r1
- movea lo( fred ), r1, r1
- will store 0 in the value fields for the MOVHI and MOVEA instructions
- and addend will be the address of fred, but for these instructions:
- movhi hi( fred + 0x123456 ), r0, r1
- movea lo( fred + 0x123456 ), r1, r1
- the value stored in the MOVHI instruction will be 0x12 and the value
- stored in the MOVEA instruction will be 0x3456. If however the
- instructions were:
- movhi hi( fred + 0x10ffff ), r0, r1
- movea lo( fred + 0x10ffff ), r1, r1
- then the value stored in the MOVHI instruction would be 0x11 (not
- 0x10) and the value stored in the MOVEA instruction would be 0xffff.
- Thus (assuming for the moment that the addend is 0), at run time the
- MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
- adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
- the instructions were:
- movhi hi( fred - 1 ), r0, r1
- movea lo( fred - 1 ), r1, r1
- then 0 is stored in the MOVHI instruction and -1 is stored in the
- MOVEA instruction.
- Overflow can occur if the addition of the value stored in the
- instruction plus the addend sets the 15th bit when before it was clear.
- This is because the 15th bit will be sign extended into the high part,
- thus reducing its value by one, but since the 15th bit was originally
- clear, the assembler will not have added 1 to the previous HI16S reloc
- to compensate for this effect. For example:
- movhi hi( fred + 0x123456 ), r0, r1
- movea lo( fred + 0x123456 ), r1, r1
- The value stored in HI16S reloc is 0x12, the value stored in the LO16
- reloc is 0x3456. If we assume that the address of fred is 0x00007000
- then the relocations become:
- HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
- LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
- but when the instructions are executed, the MOVEA instruction's value
- is signed extended, so the sum becomes:
- 0x00120000
- + 0xffffa456
- ------------
- 0x0011a456 but 'fred + 0x123456' = 0x0012a456
- Note that if the 15th bit was set in the value stored in the LO16
- reloc, then we do not have to do anything:
- movhi hi( fred + 0x10ffff ), r0, r1
- movea lo( fred + 0x10ffff ), r1, r1
- HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
- LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
- 0x00110000
- + 0x00006fff
- ------------
- 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
- Overflow can also occur if the computation carries into the 16th bit
- and it also results in the 15th bit having the same value as the 15th
- bit of the original value. What happens is that the HI16S reloc
- will have already examined the 15th bit of the original value and
- added 1 to the high part if the bit is set. This compensates for the
- sign extension of 15th bit of the result of the computation. But now
- there is a carry into the 16th bit, and this has not been allowed for.
- So, for example if fred is at address 0xf000:
- movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
- movea lo( fred + 0xffff ), r1, r1
- HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
- LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
- 0x00010000
- + 0xffffefff
- ------------
- 0x0000efff but 'fred + 0xffff' = 0x0001efff
- Similarly, if the 15th bit remains clear, but overflow occurs into
- the 16th bit then (assuming the address of fred is 0xf000):
- movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
- movea lo( fred + 0x7000 ), r1, r1
- HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
- LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
- 0x00000000
- + 0x00006fff
- ------------
- 0x00006fff but 'fred + 0x7000' = 0x00016fff
- Note - there is no need to change anything if a carry occurs, and the
- 15th bit changes its value from being set to being clear, as the HI16S
- reloc will have already added in 1 to the high part for us:
- movhi hi( fred + 0xffff ), r0, r1 [bit 15 of the offset is set]
- movea lo( fred + 0xffff ), r1, r1
- HI16S: 0x0001 + (0x00007000 >> 16)
- LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
- 0x00010000
- + 0x00006fff (bit 15 not set, so the top half is zero)
- ------------
- 0x00016fff which is right (assuming that fred is at 0x7000)
- but if the 15th bit goes from being clear to being set, then we must
- once again handle overflow:
- movhi hi( fred + 0x7000 ), r0, r1 [bit 15 of the offset is clear]
- movea lo( fred + 0x7000 ), r1, r1
- HI16S: 0x0000 + (0x0000ffff >> 16)
- LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
- 0x00000000
- + 0x00006fff (bit 15 not set, so the top half is zero)
- ------------
- 0x00006fff which is wrong (assuming that fred is at 0xffff). */
- static bool
- v850_elf_perform_lo16_relocation (bfd *abfd, unsigned long *insn,
- unsigned long addend)
- {
- #define BIT15_SET(x) ((x) & 0x8000)
- #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
- if ((BIT15_SET (*insn + addend) && ! BIT15_SET (addend))
- || (OVERFLOWS (addend, *insn)
- && ((! BIT15_SET (*insn)) || (BIT15_SET (addend)))))
- {
- bool already_updated;
- bfd_byte *hi16s_address = find_remembered_hi16s_reloc
- (addend, & already_updated);
- /* Amend the matching HI16_S relocation. */
- if (hi16s_address != NULL)
- {
- if (! already_updated)
- {
- unsigned long hi_insn = bfd_get_16 (abfd, hi16s_address);
- hi_insn += 1;
- bfd_put_16 (abfd, hi_insn, hi16s_address);
- }
- }
- else
- {
- _bfd_error_handler (_("failed to find previous HI16 reloc"));
- return false;
- }
- }
- #undef OVERFLOWS
- #undef BIT15_SET
- /* Do not complain if value has top bit set, as this has been
- anticipated. */
- *insn = (*insn + addend) & 0xffff;
- return true;
- }
- /* FIXME: The code here probably ought to be removed and the code in reloc.c
- allowed to do its stuff instead. At least for most of the relocs, anyway. */
- static bfd_reloc_status_type
- v850_elf_perform_relocation (bfd *abfd,
- unsigned int r_type,
- bfd_vma addend,
- bfd_byte *address)
- {
- unsigned long insn;
- unsigned long result;
- bfd_signed_vma saddend = (bfd_signed_vma) addend;
- switch (r_type)
- {
- default:
- #ifdef DEBUG
- _bfd_error_handler ("%pB: unsupported relocation type %#x",
- abfd, r_type);
- #endif
- return bfd_reloc_notsupported;
- case R_V850_REL32:
- case R_V850_ABS32:
- case R_V810_WORD:
- case R_V850_PC32:
- bfd_put_32 (abfd, addend, address);
- return bfd_reloc_ok;
- case R_V850_WLO23:
- case R_V850_23:
- insn = bfd_get_32 (abfd, address);
- insn &= ~((0x7f << 4) | (0x7fff80 << (16-7)));
- insn |= ((addend & 0x7f) << 4) | ((addend & 0x7fff80) << (16-7));
- bfd_put_32 (abfd, (bfd_vma) insn, address);
- return bfd_reloc_ok;
- case R_V850_PCR22:
- case R_V850_22_PCREL:
- if (saddend > 0x1fffff || saddend < -0x200000)
- return bfd_reloc_overflow;
- if ((addend % 2) != 0)
- return bfd_reloc_dangerous;
- insn = bfd_get_32 (abfd, address);
- insn &= ~0xfffe003f;
- insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
- bfd_put_32 (abfd, (bfd_vma) insn, address);
- return bfd_reloc_ok;
- case R_V850_PC17:
- case R_V850_17_PCREL:
- if (saddend > 0xffff || saddend < -0x10000)
- return bfd_reloc_overflow;
- if ((addend % 2) != 0)
- return bfd_reloc_dangerous;
- insn = bfd_get_32 (abfd, address);
- insn &= ~ 0xfffe0010;
- insn |= ((addend & 0xfffe) << 16) | ((addend & 0x10000) >> (16-4));
- break;
- case R_V850_PC16U:
- case R_V850_16_PCREL:
- if ((saddend < -0xffff) || (saddend > 0))
- return bfd_reloc_overflow;
- if ((addend % 2) != 0)
- return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, address);
- insn &= ~0xfffe;
- insn |= (-addend & 0xfffe);
- break;
- case R_V850_PC9:
- case R_V850_9_PCREL:
- if (saddend > 0xff || saddend < -0x100)
- return bfd_reloc_overflow;
- if ((addend % 2) != 0)
- return bfd_reloc_dangerous;
- insn = bfd_get_16 (abfd, address);
- insn &= ~ 0xf870;
- insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
- break;
- case R_V810_WHI:
- case R_V850_HI16:
- addend += (bfd_get_16 (abfd, address) << 16);
- addend = (addend >> 16);
- insn = addend;
- break;
- case R_V810_WHI1:
- case R_V850_HI16_S:
- /* Remember where this relocation took place. */
- remember_hi16s_reloc (abfd, addend, address);
- addend += (bfd_get_16 (abfd, address) << 16);
- addend = (addend >> 16) + ((addend & 0x8000) != 0);
- /* This relocation cannot overflow. */
- if (addend > 0xffff)
- addend = 0;
- insn = addend;
- break;
- case R_V810_WLO:
- case R_V850_LO16:
- insn = bfd_get_16 (abfd, address);
- if (! v850_elf_perform_lo16_relocation (abfd, &insn, addend))
- return bfd_reloc_overflow;
- break;
- case R_V810_BYTE:
- case R_V850_8:
- addend += (char) bfd_get_8 (abfd, address);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0x7f || saddend < -0x80)
- return bfd_reloc_overflow;
- bfd_put_8 (abfd, addend, address);
- return bfd_reloc_ok;
- case R_V850_CALLT_16_16_OFFSET:
- addend += bfd_get_16 (abfd, address);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0xffff || saddend < 0)
- return bfd_reloc_overflow;
- insn = addend;
- break;
- case R_V850_CALLT_15_16_OFFSET:
- insn = bfd_get_16 (abfd, address);
- addend += insn & 0xfffe;
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0xffff || saddend < 0)
- return bfd_reloc_overflow;
- insn = (0xfffe & addend)
- | (insn & ~0xfffe);
- break;
- case R_V850_CALLT_6_7_OFFSET:
- insn = bfd_get_16 (abfd, address);
- addend += ((insn & 0x3f) << 1);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0x7e || saddend < 0)
- return bfd_reloc_overflow;
- if (addend & 1)
- return bfd_reloc_dangerous;
- insn &= 0xff80;
- insn |= (addend >> 1);
- break;
- case R_V850_16:
- case R_V810_HWORD:
- case R_V850_SDA_16_16_OFFSET:
- case R_V850_ZDA_16_16_OFFSET:
- case R_V850_TDA_16_16_OFFSET:
- addend += bfd_get_16 (abfd, address);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0x7fff || saddend < -0x8000)
- return bfd_reloc_overflow;
- insn = addend;
- break;
- case R_V850_16_S1:
- case R_V850_SDA_15_16_OFFSET:
- case R_V850_ZDA_15_16_OFFSET:
- case R_V810_GPWLO_1:
- insn = bfd_get_16 (abfd, address);
- addend += (insn & 0xfffe);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0x7ffe || saddend < -0x8000)
- return bfd_reloc_overflow;
- if (addend & 1)
- return bfd_reloc_dangerous;
- insn = (addend &~ (bfd_vma) 1) | (insn & 1);
- break;
- case R_V850_TDA_6_8_OFFSET:
- insn = bfd_get_16 (abfd, address);
- addend += ((insn & 0x7e) << 1);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0xfc || saddend < 0)
- return bfd_reloc_overflow;
- if (addend & 3)
- return bfd_reloc_dangerous;
- insn &= 0xff81;
- insn |= (addend >> 1);
- break;
- case R_V850_TDA_7_8_OFFSET:
- insn = bfd_get_16 (abfd, address);
- addend += ((insn & 0x7f) << 1);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0xfe || saddend < 0)
- return bfd_reloc_overflow;
- if (addend & 1)
- return bfd_reloc_dangerous;
- insn &= 0xff80;
- insn |= (addend >> 1);
- break;
- case R_V850_TDA_7_7_OFFSET:
- insn = bfd_get_16 (abfd, address);
- addend += insn & 0x7f;
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0x7f || saddend < 0)
- return bfd_reloc_overflow;
- insn &= 0xff80;
- insn |= addend;
- break;
- case R_V850_TDA_4_5_OFFSET:
- insn = bfd_get_16 (abfd, address);
- addend += ((insn & 0xf) << 1);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0x1e || saddend < 0)
- return bfd_reloc_overflow;
- if (addend & 1)
- return bfd_reloc_dangerous;
- insn &= 0xfff0;
- insn |= (addend >> 1);
- break;
- case R_V850_TDA_4_4_OFFSET:
- insn = bfd_get_16 (abfd, address);
- addend += insn & 0xf;
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0xf || saddend < 0)
- return bfd_reloc_overflow;
- insn &= 0xfff0;
- insn |= addend;
- break;
- case R_V810_WLO_1:
- case R_V850_HWLO:
- case R_V850_HWLO_1:
- case R_V850_LO16_S1:
- insn = bfd_get_16 (abfd, address);
- result = insn & 0xfffe;
- if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
- return bfd_reloc_overflow;
- if (result & 1)
- return bfd_reloc_overflow;
- insn = (result & 0xfffe)
- | (insn & ~0xfffe);
- bfd_put_16 (abfd, insn, address);
- return bfd_reloc_ok;
- case R_V850_BLO:
- case R_V850_LO16_SPLIT_OFFSET:
- insn = bfd_get_32 (abfd, address);
- result = ((insn & 0xfffe0000) >> 16) | ((insn & 0x20) >> 5);
- if (! v850_elf_perform_lo16_relocation (abfd, &result, addend))
- return bfd_reloc_overflow;
- insn = (((result << 16) & 0xfffe0000)
- | ((result << 5) & 0x20)
- | (insn & ~0xfffe0020));
- bfd_put_32 (abfd, insn, address);
- return bfd_reloc_ok;
- case R_V850_16_SPLIT_OFFSET:
- case R_V850_SDA_16_16_SPLIT_OFFSET:
- case R_V850_ZDA_16_16_SPLIT_OFFSET:
- insn = bfd_get_32 (abfd, address);
- addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
- saddend = (bfd_signed_vma) addend;
- if (saddend > 0x7fff || saddend < -0x8000)
- return bfd_reloc_overflow;
- insn &= 0x0001ffdf;
- insn |= (addend & 1) << 5;
- insn |= (addend &~ (bfd_vma) 1) << 16;
- bfd_put_32 (abfd, (bfd_vma) insn, address);
- return bfd_reloc_ok;
- case R_V850_GNU_VTINHERIT:
- case R_V850_GNU_VTENTRY:
- return bfd_reloc_ok;
- }
- bfd_put_16 (abfd, (bfd_vma) insn, address);
- return bfd_reloc_ok;
- }
- /* Insert the addend into the instruction. */
- static bfd_reloc_status_type
- v850_elf_reloc (bfd *abfd ATTRIBUTE_UNUSED,
- arelent *reloc,
- asymbol *symbol,
- void * data ATTRIBUTE_UNUSED,
- asection *isection,
- bfd *obfd,
- char **err ATTRIBUTE_UNUSED)
- {
- long relocation;
- /* If there is an output BFD,
- and the symbol is not a section name (which is only defined at final link time),
- and either we are not putting the addend into the instruction
- or the addend is zero, so there is nothing to add into the instruction
- then just fixup the address and return. */
- if (obfd != NULL
- && (symbol->flags & BSF_SECTION_SYM) == 0
- && (! reloc->howto->partial_inplace
- || reloc->addend == 0))
- {
- reloc->address += isection->output_offset;
- return bfd_reloc_ok;
- }
- /* Catch relocs involving undefined symbols. */
- if (bfd_is_und_section (symbol->section)
- && (symbol->flags & BSF_WEAK) == 0
- && obfd == NULL)
- return bfd_reloc_undefined;
- /* We handle final linking of some relocs ourselves. */
- /* Is the address of the relocation really within the section? */
- if (reloc->address > bfd_get_section_limit (abfd, isection))
- return bfd_reloc_outofrange;
- /* Work out which section the relocation is targeted at and the
- initial relocation command value. */
- if (reloc->howto->pc_relative)
- return bfd_reloc_ok;
- /* Get symbol value. (Common symbols are special.) */
- if (bfd_is_com_section (symbol->section))
- relocation = 0;
- else
- relocation = symbol->value;
- /* Convert input-section-relative symbol value to absolute + addend. */
- relocation += symbol->section->output_section->vma;
- relocation += symbol->section->output_offset;
- relocation += reloc->addend;
- reloc->addend = relocation;
- return bfd_reloc_ok;
- }
- /* This function is used for relocs which are only used
- for relaxing, which the linker should otherwise ignore. */
- static bfd_reloc_status_type
- v850_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
- arelent *reloc_entry,
- asymbol *symbol ATTRIBUTE_UNUSED,
- void * data ATTRIBUTE_UNUSED,
- asection *input_section,
- bfd *output_bfd,
- char **error_message ATTRIBUTE_UNUSED)
- {
- if (output_bfd != NULL)
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
- /* Note: It is REQUIRED that the 'type' value of each entry
- in this array match the index of the entry in the array.
- SeeAlso: RELOC_NUBMER in include/elf/v850.h. */
- static reloc_howto_type v850_elf_howto_table[] =
- {
- /* This reloc does nothing. */
- HOWTO (R_V850_NONE, /* Type. */
- 0, /* Rightshift. */
- 3, /* Size (0 = byte, 1 = short, 2 = long). */
- 0, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- bfd_elf_generic_reloc, /* Special_function. */
- "R_V850_NONE", /* Name. */
- false, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* A PC relative 9 bit branch. */
- HOWTO (R_V850_9_PCREL, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 9, /* Bitsize. */
- true, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_bitfield, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_9_PCREL", /* Name. */
- false, /* Partial_inplace. */
- 0x00ffffff, /* Src_mask. */
- 0x00ffffff, /* Dst_mask. */
- true), /* PCrel_offset. */
- /* A PC relative 22 bit branch. */
- HOWTO (R_V850_22_PCREL, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 22, /* Bitsize. */
- true, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_signed, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_22_PCREL", /* Name. */
- false, /* Partial_inplace. */
- 0x07ffff80, /* Src_mask. */
- 0x07ffff80, /* Dst_mask. */
- true), /* PCrel_offset. */
- /* High 16 bits of symbol value. */
- HOWTO (R_V850_HI16_S, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_HI16_S", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* High 16 bits of symbol value. */
- HOWTO (R_V850_HI16, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_HI16", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* Low 16 bits of symbol value. */
- HOWTO (R_V850_LO16, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_LO16", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* Simple 32bit reloc. */
- HOWTO (R_V850_ABS32, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 32, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_ABS32", /* Name. */
- false, /* Partial_inplace. */
- 0xffffffff, /* Src_mask. */
- 0xffffffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* Simple 16bit reloc. */
- HOWTO (R_V850_16, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- bfd_elf_generic_reloc, /* Special_function. */
- "R_V850_16", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* Simple 8bit reloc. */
- HOWTO (R_V850_8, /* Type. */
- 0, /* Rightshift. */
- 0, /* Size (0 = byte, 1 = short, 2 = long). */
- 8, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- bfd_elf_generic_reloc, /* Special_function. */
- "R_V850_8", /* Name. */
- false, /* Partial_inplace. */
- 0xff, /* Src_mask. */
- 0xff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 16 bit offset from the short data area pointer. */
- HOWTO (R_V850_SDA_16_16_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_SDA_16_16_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 15 bit offset from the short data area pointer. */
- HOWTO (R_V850_SDA_15_16_OFFSET, /* Type. */
- 1, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 1, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_SDA_15_16_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0xfffe, /* Src_mask. */
- 0xfffe, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 16 bit offset from the zero data area pointer. */
- HOWTO (R_V850_ZDA_16_16_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_ZDA_16_16_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 15 bit offset from the zero data area pointer. */
- HOWTO (R_V850_ZDA_15_16_OFFSET, /* Type. */
- 1, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 1, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_ZDA_15_16_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0xfffe, /* Src_mask. */
- 0xfffe, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 6 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_6_8_OFFSET, /* Type. */
- 2, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 8, /* Bitsize. */
- false, /* PC_relative. */
- 1, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_TDA_6_8_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0x7e, /* Src_mask. */
- 0x7e, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 8 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_7_8_OFFSET, /* Type. */
- 1, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 8, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_TDA_7_8_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0x7f, /* Src_mask. */
- 0x7f, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 7 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_7_7_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 7, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_TDA_7_7_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0x7f, /* Src_mask. */
- 0x7f, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 16 bit offset from the tiny data area pointer! */
- HOWTO (R_V850_TDA_16_16_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_TDA_16_16_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xfff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 5 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_4_5_OFFSET, /* Type. */
- 1, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 5, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_TDA_4_5_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0x0f, /* Src_mask. */
- 0x0f, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 4 bit offset from the tiny data area pointer. */
- HOWTO (R_V850_TDA_4_4_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 4, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_TDA_4_4_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0x0f, /* Src_mask. */
- 0x0f, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 16 bit offset from the short data area pointer. */
- HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_SDA_16_16_SPLIT_OFFSET",/* Name. */
- false, /* Partial_inplace. */
- 0xfffe0020, /* Src_mask. */
- 0xfffe0020, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 16 bit offset from the zero data area pointer. */
- HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_ZDA_16_16_SPLIT_OFFSET",/* Name. */
- false, /* Partial_inplace. */
- 0xfffe0020, /* Src_mask. */
- 0xfffe0020, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 6 bit offset from the call table base pointer. */
- HOWTO (R_V850_CALLT_6_7_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 7, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_CALLT_6_7_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0x3f, /* Src_mask. */
- 0x3f, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* 16 bit offset from the call table base pointer. */
- HOWTO (R_V850_CALLT_16_16_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_CALLT_16_16_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* GNU extension to record C++ vtable hierarchy */
- HOWTO (R_V850_GNU_VTINHERIT, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 0, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- NULL, /* Special_function. */
- "R_V850_GNU_VTINHERIT", /* Name. */
- false, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* GNU extension to record C++ vtable member usage. */
- HOWTO (R_V850_GNU_VTENTRY, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 0, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */
- "R_V850_GNU_VTENTRY", /* Name. */
- false, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall
- pseudo-op when it finds a function call which can be relaxed. */
- HOWTO (R_V850_LONGCALL, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 32, /* Bitsize. */
- true, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_signed, /* Complain_on_overflow. */
- v850_elf_ignore_reloc, /* Special_function. */
- "R_V850_LONGCALL", /* Name. */
- false, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- true), /* PCrel_offset. */
- /* Indicates a .longjump pseudo-op. The compiler will generate a
- .longjump pseudo-op when it finds a branch which can be relaxed. */
- HOWTO (R_V850_LONGJUMP, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 32, /* Bitsize. */
- true, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_signed, /* Complain_on_overflow. */
- v850_elf_ignore_reloc, /* Special_function. */
- "R_V850_LONGJUMP", /* Name. */
- false, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- true), /* PCrel_offset. */
- HOWTO (R_V850_ALIGN, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 0, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_unsigned, /* Complain_on_overflow. */
- v850_elf_ignore_reloc, /* Special_function. */
- "R_V850_ALIGN", /* Name. */
- false, /* Partial_inplace. */
- 0, /* Src_mask. */
- 0, /* Dst_mask. */
- true), /* PCrel_offset. */
- /* Simple pc-relative 32bit reloc. */
- HOWTO (R_V850_REL32, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 32, /* Bitsize. */
- true, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_REL32", /* Name. */
- false, /* Partial_inplace. */
- 0xffffffff, /* Src_mask. */
- 0xffffffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* An ld.bu version of R_V850_LO16. */
- HOWTO (R_V850_LO16_SPLIT_OFFSET, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_LO16_SPLIT_OFFSET", /* Name. */
- false, /* Partial_inplace. */
- 0xfffe0020, /* Src_mask. */
- 0xfffe0020, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* A unsigned PC relative 16 bit loop. */
- HOWTO (R_V850_16_PCREL, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- true, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_bitfield, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_16_PCREL", /* Name. */
- false, /* Partial_inplace. */
- 0xfffe, /* Src_mask. */
- 0xfffe, /* Dst_mask. */
- true), /* PCrel_offset. */
- /* A PC relative 17 bit branch. */
- HOWTO (R_V850_17_PCREL, /* Type. */
- 0, /* Rightshift. */
- 2, /* Size (0 = byte, 1 = short, 2 = long). */
- 17, /* Bitsize. */
- true, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_bitfield, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_17_PCREL", /* Name. */
- false, /* Partial_inplace. */
- 0x0010fffe, /* Src_mask. */
- 0x0010fffe, /* Dst_mask. */
- true), /* PCrel_offset. */
- /* A 23bit offset ld/st. */
- HOWTO (R_V850_23, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 23, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_dont, /* complain_on_overflow. */
- v850_elf_reloc, /* special_function. */
- "R_V850_23", /* name. */
- false, /* partial_inplace. */
- 0xffff07f0, /* src_mask. */
- 0xffff07f0, /* dst_mask. */
- false), /* pcrel_offset. */
- /* A PC relative 32 bit branch. */
- HOWTO (R_V850_32_PCREL, /* type. */
- 1, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
- true, /* pc_relative. */
- 1, /* bitpos. */
- complain_overflow_signed, /* complain_on_overflow. */
- v850_elf_reloc, /* special_function. */
- "R_V850_32_PCREL", /* name. */
- false, /* partial_inplace. */
- 0xfffffffe, /* src_mask. */
- 0xfffffffe, /* dst_mask. */
- true), /* pcrel_offset. */
- /* A absolute 32 bit branch. */
- HOWTO (R_V850_32_ABS, /* type. */
- 1, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
- true, /* pc_relative. */
- 1, /* bitpos. */
- complain_overflow_signed, /* complain_on_overflow. */
- v850_elf_reloc, /* special_function. */
- "R_V850_32_ABS", /* name. */
- false, /* partial_inplace. */
- 0xfffffffe, /* src_mask. */
- 0xfffffffe, /* dst_mask. */
- false), /* pcrel_offset. */
- /* High 16 bits of symbol value. */
- HOWTO (R_V850_HI16, /* Type. */
- 0, /* Rightshift. */
- 1, /* Size (0 = byte, 1 = short, 2 = long). */
- 16, /* Bitsize. */
- false, /* PC_relative. */
- 0, /* Bitpos. */
- complain_overflow_dont, /* Complain_on_overflow. */
- v850_elf_reloc, /* Special_function. */
- "R_V850_HI16", /* Name. */
- false, /* Partial_inplace. */
- 0xffff, /* Src_mask. */
- 0xffff, /* Dst_mask. */
- false), /* PCrel_offset. */
- /* Low 16 bits of symbol value. */
- HOWTO (R_V850_16_S1, /* type. */
- 1, /* rightshift. */
- 1, /* size (0 = byte, 1 = short, 2 = long). */
- 16, /* bitsize. */
- false, /* pc_relative. */
- 1, /* bitpos. */
- complain_overflow_dont, /* complain_on_overflow. */
- v850_elf_reloc, /* special_function. */
- "R_V850_16_S1", /* name. */
- false, /* partial_inplace. */
- 0xfffe, /* src_mask. */
- 0xfffe, /* dst_mask. */
- false), /* pcrel_offset. */
- /* Low 16 bits of symbol value. */
- HOWTO (R_V850_LO16_S1, /* type. */
- 1, /* rightshift. */
- 1, /* size (0 = byte, 1 = short, 2 = long). */
- 16, /* bitsize. */
- false, /* pc_relative. */
- 1, /* bitpos. */
- complain_overflow_dont, /* complain_on_overflow. */
- v850_elf_reloc, /* special_function. */
- "R_V850_LO16_S1", /* name. */
- false, /* partial_inplace. */
- 0xfffe, /* src_mask. */
- 0xfffe, /* dst_mask. */
- false), /* pcrel_offset. */
- /* 16 bit offset from the call table base pointer. */
- HOWTO (R_V850_CALLT_15_16_OFFSET, /* type. */
- 1, /* rightshift. */
- 1, /* size (0 = byte, 1 = short, 2 = long). */
- 16, /* bitsize. */
- false, /* pc_relative. */
- 1, /* bitpos. */
- complain_overflow_dont, /* complain_on_overflow. */
- v850_elf_reloc, /* special_function. */
- "R_V850_CALLT_15_16_OFFSET", /* name. */
- false, /* partial_inplace. */
- 0xfffe, /* src_mask. */
- 0xfffe, /* dst_mask. */
- false), /* pcrel_offset. */
- /* Like R_V850_32 PCREL, but referring to the GOT table entry for
- the symbol. */
- HOWTO (R_V850_32_GOTPCREL, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
- true, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_unsigned, /* complain_on_overflow. */
- v850_elf_reloc, /* special_function. */
- "R_V850_32_GOTPCREL", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- true), /* pcrel_offset. */
- /* Like R_V850_SDA_, but referring to the GOT table entry for
- the symbol. */
- HOWTO (R_V850_16_GOT, /* type. */
- 0, /* rightshift. */
- 2, /* 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_V850_16_GOT", /* name. */
- false, /* partial_inplace. */
- 0xffff, /* src_mask. */
- 0xffff, /* dst_mask. */
- false), /* pcrel_offset. */
- HOWTO (R_V850_32_GOT, /* 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_V850_32_GOT", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- false), /* pcrel_offset. */
- /* Like R_V850_22_PCREL, but referring to the procedure linkage table
- entry for the symbol. */
- HOWTO (R_V850_22_PLT, /* type. */
- 1, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 22, /* bitsize. */
- true, /* pc_relative. */
- 7, /* bitpos. */
- complain_overflow_signed, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_22_PLT", /* name. */
- false, /* partial_inplace. */
- 0x07ffff80, /* src_mask. */
- 0x07ffff80, /* dst_mask. */
- true), /* pcrel_offset. */
- HOWTO (R_V850_32_PLT, /* type. */
- 1, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
- true, /* pc_relative. */
- 1, /* bitpos. */
- complain_overflow_signed, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_32_PLT", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- true), /* pcrel_offset. */
- /* This is used only by the dynamic linker. The symbol should exist
- both in the object being run and in some shared library. The
- dynamic linker copies the data addressed by the symbol from the
- shared library into the object, because the object being
- run has to have the data at some particular address. */
- HOWTO (R_V850_COPY, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long). */
- 32, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_COPY", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- false), /* pcrel_offset. */
- /* Like R_M32R_24, but used when setting global offset table
- entries. */
- HOWTO (R_V850_GLOB_DAT, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_GLOB_DAT", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- false), /* pcrel_offset. */
- /* Marks a procedure linkage table entry for a symbol. */
- HOWTO (R_V850_JMP_SLOT, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_JMP_SLOT", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- false), /* pcrel_offset. */
- /* Used only by the dynamic linker. When the object is run, this
- longword is set to the load address of the object, plus the
- addend. */
- HOWTO (R_V850_RELATIVE, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_RELATIVE", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- false), /* pcrel_offset. */
- HOWTO (R_V850_16_GOTOFF, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_16_GOTOFF", /* name. */
- false, /* partial_inplace. */
- 0xffff, /* src_mask. */
- 0xffff, /* dst_mask. */
- false), /* pcrel_offset. */
- HOWTO (R_V850_32_GOTOFF, /* type. */
- 0, /* rightshift. */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_bitfield, /* complain_on_overflow. */
- bfd_elf_generic_reloc, /* special_function. */
- "R_V850_32_GOTOFF", /* name. */
- false, /* partial_inplace. */
- 0xffffffff, /* src_mask. */
- 0xffffffff, /* dst_mask. */
- false), /* pcrel_offset. */
- HOWTO (R_V850_CODE, /* type. */
- 0, /* rightshift. */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_unsigned, /* complain_on_overflow. */
- v850_elf_ignore_reloc, /* special_function. */
- "R_V850_CODE", /* name. */
- false, /* partial_inplace. */
- 0, /* src_mask. */
- 0, /* dst_mask. */
- true), /* pcrel_offset. */
- HOWTO (R_V850_DATA, /* type. */
- 0, /* rightshift. */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize. */
- false, /* pc_relative. */
- 0, /* bitpos. */
- complain_overflow_unsigned, /* complain_on_overflow. */
- v850_elf_ignore_reloc, /* special_function. */
- "R_V850_DATA", /* name. */
- false, /* partial_inplace. */
- 0, /* src_mask. */
- 0, /* dst_mask. */
- true), /* pcrel_offset. */
- };
- /* Map BFD reloc types to V850 ELF reloc types. */
- struct v850_elf_reloc_map
- {
- /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an
- unsigned char. */
- bfd_reloc_code_real_type bfd_reloc_val;
- unsigned int elf_reloc_val;
- };
- static const struct v850_elf_reloc_map v850_elf_reloc_map[] =
- {
- { BFD_RELOC_NONE, R_V850_NONE },
- { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL },
- { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL },
- { BFD_RELOC_HI16_S, R_V850_HI16_S },
- { BFD_RELOC_HI16, R_V850_HI16 },
- { BFD_RELOC_LO16, R_V850_LO16 },
- { BFD_RELOC_32, R_V850_ABS32 },
- { BFD_RELOC_32_PCREL, R_V850_REL32 },
- { BFD_RELOC_16, R_V850_16 },
- { BFD_RELOC_8, R_V850_8 },
- { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
- { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
- { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
- { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
- { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
- { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
- { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
- { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
- { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
- { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
- { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_LO16_SPLIT_OFFSET },
- { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
- { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
- { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET },
- { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET },
- { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT },
- { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY },
- { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL },
- { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP },
- { BFD_RELOC_V850_ALIGN, R_V850_ALIGN },
- { BFD_RELOC_V850_16_PCREL, R_V850_16_PCREL },
- { BFD_RELOC_V850_17_PCREL, R_V850_17_PCREL },
- { BFD_RELOC_V850_23, R_V850_23 },
- { BFD_RELOC_V850_32_PCREL, R_V850_32_PCREL },
- { BFD_RELOC_V850_32_ABS, R_V850_32_ABS },
- { BFD_RELOC_V850_16_SPLIT_OFFSET, R_V850_HI16 },
- { BFD_RELOC_V850_16_S1, R_V850_16_S1 },
- { BFD_RELOC_V850_LO16_S1, R_V850_LO16_S1 },
- { BFD_RELOC_V850_CALLT_15_16_OFFSET, R_V850_CALLT_15_16_OFFSET },
- { BFD_RELOC_V850_32_GOTPCREL, R_V850_32_GOTPCREL },
- { BFD_RELOC_V850_16_GOT, R_V850_16_GOT },
- { BFD_RELOC_V850_32_GOT, R_V850_32_GOT },
- { BFD_RELOC_V850_22_PLT_PCREL, R_V850_22_PLT },
- { BFD_RELOC_V850_32_PLT_PCREL, R_V850_32_PLT },
- { BFD_RELOC_V850_COPY, R_V850_COPY },
- { BFD_RELOC_V850_GLOB_DAT, R_V850_GLOB_DAT },
- { BFD_RELOC_V850_JMP_SLOT, R_V850_JMP_SLOT },
- { BFD_RELOC_V850_RELATIVE, R_V850_RELATIVE },
- { BFD_RELOC_V850_16_GOTOFF, R_V850_16_GOTOFF },
- { BFD_RELOC_V850_32_GOTOFF, R_V850_32_GOTOFF },
- { BFD_RELOC_V850_CODE, R_V850_CODE },
- { BFD_RELOC_V850_DATA, R_V850_DATA },
- };
- #define V800_RELOC(name,sz,bit,shift,complain,pcrel,resolver) \
- HOWTO (name, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \
- bfd_elf_ ## resolver ## _reloc, #name, false, 0, ~0, false)
- #define V800_EMPTY(name) EMPTY_HOWTO (name - R_V810_NONE)
- #define bfd_elf_v850_reloc v850_elf_reloc
- /* Note: It is REQUIRED that the 'type' value (R_V810_...) of each entry
- in this array match the index of the entry in the array minus 0x30.
- See: bfd_elf_v850_relocate_section(), v800_elf_reloc_type_lookup()
- and v800_elf_info_to_howto(). */
- static reloc_howto_type v800_elf_howto_table[] =
- {
- V800_RELOC (R_V810_NONE, 0, 0, 0, dont, false, generic), /* Type = 0x30 */
- V800_RELOC (R_V810_BYTE, 0, 8, 0, dont, false, generic),
- V800_RELOC (R_V810_HWORD, 1, 16, 0, dont, false, generic),
- V800_RELOC (R_V810_WORD, 2, 32, 0, dont, false, generic),
- V800_RELOC (R_V810_WLO, 1, 16, 0, dont, false, generic),
- V800_RELOC (R_V810_WHI, 1, 16, 0, dont, false, generic),
- V800_RELOC (R_V810_WHI1, 1, 16, 0, dont, false, generic),
- V800_RELOC (R_V810_GPBYTE, 0, 8, 0, dont, false, v850),
- V800_RELOC (R_V810_GPHWORD, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_GPWORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V810_GPWLO, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_GPWHI, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_GPWHI1, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V850_HWLO, 1, 16, 0, dont, false, generic),
- V800_EMPTY (R_V810_reserved1),
- V800_RELOC (R_V850_EP7BIT, 0, 7, 0, unsigned, false, v850),
- V800_RELOC (R_V850_EPHBYTE, 0, 8, 1, unsigned, false, v850),
- V800_RELOC (R_V850_EPWBYTE, 0, 8, 2, unsigned, false, v850),
- V800_RELOC (R_V850_REGHWLO, 1, 16, 0, dont, false, v850),
- V800_EMPTY (R_V810_reserved2),
- V800_RELOC (R_V850_GPHWLO, 1, 16, 0, dont, false, v850),
- V800_EMPTY (R_V810_reserved3),
- V800_RELOC (R_V850_PCR22, 2, 22, 0, signed, true, generic),
- V800_RELOC (R_V850_BLO, 2, 24, 0, dont, false, v850),
- V800_RELOC (R_V850_EP4BIT, 0, 4, 0, unsigned, false, v850),
- V800_RELOC (R_V850_EP5BIT, 0, 5, 0, unsigned, false, v850),
- V800_RELOC (R_V850_REGBLO, 2, 24, 0, dont, false, v850),
- V800_RELOC (R_V850_GPBLO, 2, 24, 0, dont, false, v850),
- V800_RELOC (R_V810_WLO_1, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_GPWLO_1, 1, 16, 0, signed, false, v850),
- V800_RELOC (R_V850_BLO_1, 2, 16, 0, signed, false, v850),
- V800_RELOC (R_V850_HWLO_1, 1, 16, 0, signed, false, v850),
- V800_EMPTY (R_V810_reserved4),
- V800_RELOC (R_V850_GPBLO_1, 2, 16, 1, signed, false, v850),
- V800_RELOC (R_V850_GPHWLO_1, 1, 16, 1, signed, false, v850),
- V800_EMPTY (R_V810_reserved5),
- V800_RELOC (R_V850_EPBLO, 2, 16, 1, signed, false, v850),
- V800_RELOC (R_V850_EPHWLO, 1, 16, 1, signed, false, v850),
- V800_EMPTY (R_V810_reserved6),
- V800_RELOC (R_V850_EPWLO_N, 1, 16, 1, signed, false, v850),
- V800_RELOC (R_V850_PC32, 2, 32, 1, signed, true, v850),
- V800_RELOC (R_V850_W23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_GPW23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_EPW23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_B23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_GPB23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_EPB23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_PC16U, 1, 16, 1, unsigned, true, generic),
- V800_RELOC (R_V850_PC17, 2, 17, 1, signed, true, generic),
- V800_RELOC (R_V850_DW8, 2, 8, 2, signed, false, v850),
- V800_RELOC (R_V850_GPDW8, 2, 8, 2, signed, false, v850),
- V800_RELOC (R_V850_EPDW8, 2, 8, 2, signed, false, v850),
- V800_RELOC (R_V850_PC9, 1, 9, 3, signed, true, v850),
- V800_RELOC (R_V810_REGBYTE, 0, 8, 0, dont, false, v850),
- V800_RELOC (R_V810_REGHWORD, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_REGWORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V810_REGWLO, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_REGWHI, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_REGWHI1, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V850_REGW23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_REGB23BIT, 2, 23, 1, signed, false, v850),
- V800_RELOC (R_V850_REGDW8, 2, 8, 2, signed, false, v850),
- V800_RELOC (R_V810_EPBYTE, 0, 8, 0, dont, false, v850),
- V800_RELOC (R_V810_EPHWORD, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_EPWORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V850_WLO23, 2, 32, 1, dont, false, v850),
- V800_RELOC (R_V850_WORD_E, 2, 32, 1, dont, false, v850),
- V800_RELOC (R_V850_REGWORD_E, 2, 32, 1, dont, false, v850),
- V800_RELOC (R_V850_WORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V850_GPWORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V850_REGWORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V850_EPWORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V810_TPBYTE, 0, 8, 0, dont, false, v850),
- V800_RELOC (R_V810_TPHWORD, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_TPWORD, 2, 32, 0, dont, false, v850),
- V800_RELOC (R_V810_TPWLO, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_TPWHI, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V810_TPWHI1, 1, 16, 0, dont, false, v850),
- V800_RELOC (R_V850_TPHWLO, 1, 16, 1, dont, false, v850),
- V800_RELOC (R_V850_TPBLO, 2, 24, 0, dont, false, v850),
- V800_RELOC (R_V810_TPWLO_1, 1, 16, 0, signed, false, v850),
- V800_RELOC (R_V850_TPBLO_1, 2, 16, 0, signed, false, v850),
- V800_RELOC (R_V850_TPHWLO_1, 1, 16, 0, signed, false, v850),
- V800_RELOC (R_V850_TP23BIT, 2, 23, 0, signed, false, v850),
- V800_RELOC (R_V850_TPW23BIT, 2, 23, 0, signed, false, v850),
- V800_RELOC (R_V850_TPDW8, 2, 8, 0, signed, false, v850)
- };
- /* Map a bfd relocation into the appropriate howto structure. */
- static reloc_howto_type *
- v850_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- bfd_reloc_code_real_type code)
- {
- unsigned int i;
- for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
- if (v850_elf_reloc_map[i].bfd_reloc_val == code)
- {
- unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
- BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
- return v850_elf_howto_table + elf_reloc_val;
- }
- return NULL;
- }
- static reloc_howto_type *
- v850_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
- const char *r_name)
- {
- unsigned int i;
- for (i = 0;
- i < sizeof (v850_elf_howto_table) / sizeof (v850_elf_howto_table[0]);
- i++)
- if (v850_elf_howto_table[i].name != NULL
- && strcasecmp (v850_elf_howto_table[i].name, r_name) == 0)
- return &v850_elf_howto_table[i];
- return NULL;
- }
- /* Set the howto pointer for an V850 ELF reloc. */
- static bool
- v850_elf_info_to_howto_rel (bfd *abfd,
- arelent *cache_ptr,
- Elf_Internal_Rela *dst)
- {
- unsigned int r_type;
- r_type = ELF32_R_TYPE (dst->r_info);
- if (r_type >= (unsigned int) R_V850_max)
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- cache_ptr->howto = &v850_elf_howto_table[r_type];
- return true;
- }
- /* Set the howto pointer for a V850 ELF reloc (type RELA). */
- static bool
- v850_elf_info_to_howto_rela (bfd *abfd,
- arelent * cache_ptr,
- Elf_Internal_Rela *dst)
- {
- unsigned int r_type;
- r_type = ELF32_R_TYPE (dst->r_info);
- if (r_type >= (unsigned int) R_V850_max)
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- cache_ptr->howto = &v850_elf_howto_table[r_type];
- return true;
- }
- static bool
- v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
- {
- return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
- || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
- }
- static bool
- v850_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
- {
- return v850_elf_is_local_label_name (abfd, sym->name);
- }
- /* We overload some of the bfd_reloc error codes for own purposes. */
- #define bfd_reloc_gp_not_found bfd_reloc_other
- #define bfd_reloc_ep_not_found bfd_reloc_continue
- #define bfd_reloc_ctbp_not_found (bfd_reloc_dangerous + 1)
- /* Perform a relocation as part of a final link. */
- static bfd_reloc_status_type
- v850_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 value,
- bfd_vma addend,
- struct bfd_link_info *info,
- asection *sym_sec,
- int is_local ATTRIBUTE_UNUSED)
- {
- unsigned int r_type = howto->type;
- bfd_byte *hit_data = contents + offset;
- /* Adjust the value according to the relocation. */
- switch (r_type)
- {
- case R_V850_PC9:
- case R_V850_9_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset);
- value -= offset;
- break;
- case R_V850_PC16U:
- case R_V850_16_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset
- + offset);
- /* If the sign extension will corrupt the value then we have overflowed. */
- if ((value & 0xffff0000) != 0xffff0000)
- return bfd_reloc_overflow;
- break;
- case R_V850_PC17:
- case R_V850_17_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset
- + offset);
- /* If the sign extension will corrupt the value then we have overflowed. */
- if (((value & 0xffff0000) != 0x0) && ((value & 0xffff0000) != 0xffff0000))
- return bfd_reloc_overflow;
- value = SEXT17 (value);
- break;
- case R_V850_PCR22:
- case R_V850_22_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset
- + offset);
- /* If the sign extension will corrupt the value then we have overflowed. */
- if (((value & 0xffe00000) != 0x0) && ((value & 0xffe00000) != 0xffe00000))
- return bfd_reloc_overflow;
- /* Only the bottom 22 bits of the PC are valid. */
- value = SEXT22 (value);
- break;
- case R_V850_PC32:
- case R_V850_32_PCREL:
- value -= (input_section->output_section->vma
- + input_section->output_offset
- + offset);
- break;
- case R_V850_32_ABS:
- case R_V850_23:
- case R_V850_HI16_S:
- case R_V850_HI16:
- case R_V850_LO16:
- case R_V850_LO16_S1:
- case R_V850_LO16_SPLIT_OFFSET:
- case R_V850_16:
- case R_V850_ABS32:
- case R_V850_8:
- case R_V810_BYTE:
- case R_V810_HWORD:
- case R_V810_WORD:
- case R_V810_WLO:
- case R_V810_WHI:
- case R_V810_WHI1:
- case R_V810_WLO_1:
- case R_V850_WLO23:
- case R_V850_BLO:
- break;
- case R_V850_ZDA_15_16_OFFSET:
- case R_V850_ZDA_16_16_OFFSET:
- case R_V850_ZDA_16_16_SPLIT_OFFSET:
- if (sym_sec == NULL)
- return bfd_reloc_undefined;
- value -= sym_sec->output_section->vma;
- break;
- case R_V850_SDA_15_16_OFFSET:
- case R_V850_SDA_16_16_OFFSET:
- case R_V850_SDA_16_16_SPLIT_OFFSET:
- case R_V810_GPWLO_1:
- {
- unsigned long gp;
- struct bfd_link_hash_entry * h;
- if (sym_sec == NULL)
- return bfd_reloc_undefined;
- /* Get the value of __gp. */
- h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true);
- if (h == NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_gp_not_found;
- gp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= sym_sec->output_section->vma;
- value -= (gp - sym_sec->output_section->vma);
- }
- break;
- case R_V850_TDA_4_4_OFFSET:
- case R_V850_TDA_4_5_OFFSET:
- case R_V850_TDA_7_7_OFFSET:
- case R_V850_TDA_7_8_OFFSET:
- case R_V850_TDA_6_8_OFFSET:
- case R_V850_TDA_16_16_OFFSET:
- {
- unsigned long ep;
- struct bfd_link_hash_entry * h;
- /* Get the value of __ep. */
- h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
- if (h == NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_ep_not_found;
- ep = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= ep;
- }
- break;
- case R_V850_CALLT_6_7_OFFSET:
- {
- unsigned long ctbp;
- struct bfd_link_hash_entry * h;
- /* Get the value of __ctbp. */
- h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
- if (h == NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_ctbp_not_found;
- ctbp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= ctbp;
- }
- break;
- case R_V850_CALLT_15_16_OFFSET:
- case R_V850_CALLT_16_16_OFFSET:
- {
- unsigned long ctbp;
- struct bfd_link_hash_entry * h;
- if (sym_sec == NULL)
- return bfd_reloc_undefined;
- /* Get the value of __ctbp. */
- h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
- if (h == NULL
- || h->type != bfd_link_hash_defined)
- return bfd_reloc_ctbp_not_found;
- ctbp = (h->u.def.value
- + h->u.def.section->output_section->vma
- + h->u.def.section->output_offset);
- value -= sym_sec->output_section->vma;
- value -= (ctbp - sym_sec->output_section->vma);
- }
- break;
- case R_V850_NONE:
- case R_V810_NONE:
- case R_V850_GNU_VTINHERIT:
- case R_V850_GNU_VTENTRY:
- case R_V850_LONGCALL:
- case R_V850_LONGJUMP:
- case R_V850_ALIGN:
- return bfd_reloc_ok;
- default:
- #ifdef DEBUG
- _bfd_error_handler ("%pB: unsupported relocation type %#x",
- input_bfd, r_type);
- #endif
- return bfd_reloc_notsupported;
- }
- /* Perform the relocation. */
- return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
- }
- /* Relocate an V850 ELF section. */
- static int
- v850_elf_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;
- Elf_Internal_Rela *relend;
- symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
- sym_hashes = elf_sym_hashes (input_bfd);
- /* Reset the list of remembered HI16S relocs to empty. */
- free_hi16s = previous_hi16s;
- previous_hi16s = NULL;
- hi16s_counter = 0;
- rel = relocs;
- relend = relocs + input_section->reloc_count;
- for (; rel < relend; rel++)
- {
- unsigned 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);
- if (r_type == R_V850_GNU_VTENTRY
- || r_type == R_V850_GNU_VTINHERIT)
- continue;
- if (bfd_get_arch (input_bfd) == bfd_arch_v850_rh850)
- howto = v800_elf_howto_table + (r_type - R_V810_NONE);
- else
- howto = v850_elf_howto_table + r_type;
- BFD_ASSERT (r_type == howto->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
- {
- bool unresolved_reloc, warned, ignored;
- /* Note - this check is delayed until now as it is possible and
- valid to have a file without any symbols but with relocs that
- can be processed. */
- if (sym_hashes == NULL)
- {
- info->callbacks->warning
- (info, "no hash table available",
- NULL, input_bfd, input_section, (bfd_vma) 0);
- return false;
- }
- 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;
- /* FIXME: We should use the addend, but the COFF relocations don't. */
- r = v850_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 = NULL;
- 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 (sec);
- }
- switch ((int) r)
- {
- case bfd_reloc_overflow:
- (*info->callbacks->reloc_overflow)
- (info, (h ? &h->root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
- break;
- case bfd_reloc_undefined:
- (*info->callbacks->undefined_symbol)
- (info, name, input_bfd, input_section, rel->r_offset, true);
- 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 relocation");
- goto common_error;
- case bfd_reloc_gp_not_found:
- msg = _("could not locate special linker symbol __gp");
- goto common_error;
- case bfd_reloc_ep_not_found:
- msg = _("could not locate special linker symbol __ep");
- goto common_error;
- case bfd_reloc_ctbp_not_found:
- msg = _("could not locate special linker symbol __ctbp");
- goto common_error;
- default:
- msg = _("internal error: unknown error");
- /* fall through */
- common_error:
- (*info->callbacks->warning) (info, msg, name, input_bfd,
- input_section, rel->r_offset);
- break;
- }
- }
- }
- return true;
- }
- static asection *
- v850_elf_gc_mark_hook (asection *sec,
- struct bfd_link_info *info,
- Elf_Internal_Rela *rel,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym *sym)
- {
- if (h != NULL)
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_V850_GNU_VTINHERIT:
- case R_V850_GNU_VTENTRY:
- return NULL;
- }
- return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
- }
- static void
- v850_set_note (bfd * abfd, asection * s, enum v850_notes note, unsigned int val)
- {
- bfd_byte * data = s->contents + ((note - 1) * SIZEOF_V850_NOTE);
- bfd_put_32 (abfd, 4, data + 0);
- bfd_put_32 (abfd, 4, data + 4);
- bfd_put_32 (abfd, note, data + 8);
- memcpy (data + 12, V850_NOTE_NAME, 4);
- bfd_put_32 (abfd, val, data + 16);
- }
- /* Create the note section if not already present. This is done early so
- that the linker maps the sections to the right place in the output. */
- static asection *
- v850_elf_make_note_section (bfd * abfd)
- {
- asection *s;
- bfd_byte *data;
- flagword flags;
- enum v850_notes id;
- /* Make the note section. */
- flags = SEC_READONLY | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_MERGE;
- s = bfd_make_section_anyway_with_flags (abfd, V850_NOTE_SECNAME, flags);
- if (s == NULL)
- return NULL;
- if (!bfd_set_section_alignment (s, 2))
- return NULL;
- /* Allocate space for all known notes. */
- if (!bfd_set_section_size (s, NUM_V850_NOTES * SIZEOF_V850_NOTE))
- return NULL;
- data = bfd_zalloc (abfd, NUM_V850_NOTES * SIZEOF_V850_NOTE);
- if (data == NULL)
- return NULL;
- s->contents = data;
- /* Provide default (= uninitilaised) values for all of the notes. */
- for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
- v850_set_note (abfd, s, id, 0);
- return s;
- }
- /* Create the note section if not already present. This is done early so
- that the linker maps the sections to the right place in the output. */
- bool
- v850_elf_create_sections (struct bfd_link_info * info)
- {
- bfd * ibfd;
- /* If we already have a note section, do not make another. */
- for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
- if (bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME) != NULL)
- return true;
- return v850_elf_make_note_section (info->input_bfds) != NULL;
- }
- bool
- v850_elf_set_note (bfd * abfd, enum v850_notes note, unsigned int val)
- {
- asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
- if (val > 2)
- /* At the moment, no known note has a value over 2. */
- return false;
- if (notes == NULL)
- notes = v850_elf_make_note_section (abfd);
- if (notes == NULL)
- return false;
- v850_set_note (abfd, notes, note, val);
- return true;
- }
- /* Copy a v850 note section from one object module to another. */
- static void
- v850_elf_copy_notes (bfd *ibfd, bfd *obfd)
- {
- asection * onotes;
- asection * inotes;
- /* If the output bfd does not have a note section, then
- skip the merge. The normal input to output section
- copying will take care of everythng for us. */
- if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
- return;
- if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) == NULL)
- return;
- if (bfd_section_size (inotes) == bfd_section_size (onotes))
- {
- bfd_byte * icont;
- bfd_byte * ocont;
- if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
- BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
- if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
- /* If the output is being stripped then it is possible for
- the notes section to disappear. In this case do nothing. */
- return;
- /* Copy/overwrite notes from the input to the output. */
- memcpy (ocont, icont, bfd_section_size (onotes));
- }
- }
- /* Copy backend specific data from one object module to another. */
- static bool
- v850_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
- {
- v850_elf_copy_notes (ibfd, obfd);
- return _bfd_elf_copy_private_bfd_data (ibfd, obfd);
- }
- #define bfd_elf32_bfd_copy_private_bfd_data v850_elf_copy_private_bfd_data
- static bool
- v850_elf_merge_notes (bfd * ibfd, bfd *obfd)
- {
- asection * onotes;
- asection * inotes;
- bool result = true;
- /* If the output bfd does not have a note section, then
- skip the merge. The normal input to output section
- copying will take care of everythng for us. */
- if ((onotes = bfd_get_section_by_name (obfd, V850_NOTE_SECNAME)) == NULL)
- return true;
- if ((inotes = bfd_get_section_by_name (ibfd, V850_NOTE_SECNAME)) != NULL)
- {
- enum v850_notes id;
- bfd_byte * icont;
- bfd_byte * ocont;
- BFD_ASSERT (bfd_section_size (inotes) == bfd_section_size (onotes));
- if ((icont = elf_section_data (inotes)->this_hdr.contents) == NULL)
- BFD_ASSERT (bfd_malloc_and_get_section (ibfd, inotes, & icont));
- if ((ocont = elf_section_data (onotes)->this_hdr.contents) == NULL)
- BFD_ASSERT (bfd_malloc_and_get_section (obfd, onotes, & ocont));
- for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
- {
- unsigned int ival;
- unsigned int oval;
- bfd_byte * idata = icont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
- bfd_byte * odata = ocont + ((id - 1) * SIZEOF_V850_NOTE) + 16;
- ival = bfd_get_32 (ibfd, idata);
- oval = bfd_get_32 (obfd, odata);
- if (ival == 0 || ival == oval)
- continue;
- if (oval == 0)
- {
- bfd_put_32 (obfd, ival, odata);
- v850_set_note (obfd, onotes, id, ival);
- continue;
- }
- /* We have a mismatch. The ABI defines how to handle
- this siutation on a per note type basis. */
- switch (id)
- {
- case V850_NOTE_ALIGNMENT:
- if (oval == EF_RH850_DATA_ALIGN4)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("error: %pB needs 8-byte alignment but %pB is set for 4-byte alignment"),
- ibfd, obfd);
- result = false;
- }
- else
- /* ibfd uses 4-byte alignment, obfd uses 8-byte alignment.
- Leave the obfd alignment as it is. */
- BFD_ASSERT (oval == EF_RH850_DATA_ALIGN8);
- break;
- case V850_NOTE_DATA_SIZE:
- if (oval == EF_RH850_DOUBLE32)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("error: %pB uses 64-bit doubles but "
- "%pB uses 32-bit doubles"), ibfd, obfd);
- result = false;
- }
- else
- /* ibfd uses 32-bit doubles, obfd uses 64-bit doubles.
- This is acceptable. Honest, that is what the ABI says. */
- BFD_ASSERT (oval == EF_RH850_DOUBLE64);
- break;
- case V850_NOTE_FPU_INFO:
- if (oval == EF_RH850_FPU20)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("error: %pB uses FPU-3.0 but %pB only supports FPU-2.0"),
- ibfd, obfd);
- result = false;
- }
- else
- /* ibfd uses FPU-2.0, obfd uses FPU-3.0. Leave obfd as it is. */
- BFD_ASSERT (oval == EF_RH850_FPU30);
- break;
- default:
- /* None of the other conflicts matter.
- Stick with the current output values. */
- break;
- }
- }
- /* FIXME: We should also check for conflicts between the notes
- and the EF flags in the ELF header. */
- }
- return result;
- }
- static void
- print_v850_note (bfd * abfd, FILE * file, bfd_byte * data, enum v850_notes id)
- {
- unsigned int value = bfd_get_32 (abfd, data + ((id - 1) * SIZEOF_V850_NOTE) + 16);
- switch (id)
- {
- case V850_NOTE_ALIGNMENT:
- fprintf (file, _(" alignment of 8-byte entities: "));
- switch (value)
- {
- case EF_RH850_DATA_ALIGN4: fprintf (file, _("4-byte")); break;
- case EF_RH850_DATA_ALIGN8: fprintf (file, _("8-byte")); break;
- case 0: fprintf (file, _("not set")); break;
- default: fprintf (file, _("unknown: %x"), value); break;
- }
- fputc ('\n', file);
- break;
- case V850_NOTE_DATA_SIZE:
- fprintf (file, _(" size of doubles: "));
- switch (value)
- {
- case EF_RH850_DOUBLE32: fprintf (file, _("4-bytes")); break;
- case EF_RH850_DOUBLE64: fprintf (file, _("8-bytes")); break;
- case 0: fprintf (file, _("not set")); break;
- default: fprintf (file, _("unknown: %x"), value); break;
- }
- fputc ('\n', file);
- break;
- case V850_NOTE_FPU_INFO:
- fprintf (file, _(" FPU support required: "));
- switch (value)
- {
- case EF_RH850_FPU20: fprintf (file, _("FPU-2.0")); break;
- case EF_RH850_FPU30: fprintf (file, _("FPU-3.0")); break;
- case 0: fprintf (file, _("none")); break;
- default: fprintf (file, _("unknown: %x"), value); break;
- }
- fputc ('\n', file);
- break;
- case V850_NOTE_SIMD_INFO:
- fprintf (file, _("SIMD use: "));
- switch (value)
- {
- case EF_RH850_SIMD: fprintf (file, _("yes")); break;
- case 0: fprintf (file, _("no")); break;
- default: fprintf (file, _("unknown: %x"), value); break;
- }
- fputc ('\n', file);
- break;
- case V850_NOTE_CACHE_INFO:
- fprintf (file, _("CACHE use: "));
- switch (value)
- {
- case EF_RH850_CACHE: fprintf (file, _("yes")); break;
- case 0: fprintf (file, _("no")); break;
- default: fprintf (file, _("unknown: %x"), value); break;
- }
- fputc ('\n', file);
- break;
- case V850_NOTE_MMU_INFO:
- fprintf (file, _("MMU use: "));
- switch (value)
- {
- case EF_RH850_MMU: fprintf (file, _("yes")); break;
- case 0: fprintf (file, _("no")); break;
- default: fprintf (file, _("unknown: %x"), value); break;
- }
- fputc ('\n', file);
- break;
- default:
- BFD_ASSERT (0);
- }
- }
- static void
- v850_elf_print_notes (bfd * abfd, FILE * file)
- {
- asection * notes = bfd_get_section_by_name (abfd, V850_NOTE_SECNAME);
- enum v850_notes id;
- if (notes == NULL || notes->contents == NULL)
- return;
- BFD_ASSERT (bfd_section_size (notes) == NUM_V850_NOTES * SIZEOF_V850_NOTE);
- for (id = V850_NOTE_ALIGNMENT; id <= NUM_V850_NOTES; id++)
- print_v850_note (abfd, file, notes->contents, id);
- }
- /* Set the right machine number and architecture. */
- static bool
- v850_elf_object_p (bfd *abfd)
- {
- enum bfd_architecture arch;
- unsigned long mach;
- switch (elf_elfheader (abfd)->e_machine)
- {
- case EM_V800:
- arch = bfd_arch_v850_rh850;
- mach = (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
- ? bfd_mach_v850e3v5 : bfd_mach_v850e2v3;
- break;
- case EM_CYGNUS_V850:
- case EM_V850:
- arch = bfd_arch_v850;
- switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
- {
- default:
- case E_V850_ARCH: mach = bfd_mach_v850; break;
- case E_V850E_ARCH: mach = bfd_mach_v850e; break;
- case E_V850E1_ARCH: mach = bfd_mach_v850e1; break;
- case E_V850E2_ARCH: mach = bfd_mach_v850e2; break;
- case E_V850E2V3_ARCH: mach = bfd_mach_v850e2v3; break;
- case E_V850E3V5_ARCH: mach = bfd_mach_v850e3v5; break;
- }
- break;
- default:
- return false;
- }
- return bfd_default_set_arch_mach (abfd, arch, mach);
- }
- /* Store the machine number in the flags field. */
- static bool
- v850_elf_final_write_processing (bfd *abfd)
- {
- unsigned long val;
- switch (bfd_get_arch (abfd))
- {
- case bfd_arch_v850_rh850:
- val = EF_RH850_ABI;
- if (bfd_get_mach (abfd) == bfd_mach_v850e3v5)
- val |= EF_V800_850E3;
- elf_elfheader (abfd)->e_flags |= val;
- break;
- case bfd_arch_v850:
- switch (bfd_get_mach (abfd))
- {
- default:
- case bfd_mach_v850: val = E_V850_ARCH; break;
- case bfd_mach_v850e: val = E_V850E_ARCH; break;
- case bfd_mach_v850e1: val = E_V850E1_ARCH; break;
- case bfd_mach_v850e2: val = E_V850E2_ARCH; break;
- case bfd_mach_v850e2v3: val = E_V850E2V3_ARCH; break;
- case bfd_mach_v850e3v5: val = E_V850E3V5_ARCH; break;
- }
- elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
- elf_elfheader (abfd)->e_flags |= val;
- break;
- default:
- break;
- }
- return _bfd_elf_final_write_processing (abfd);
- }
- /* Function to keep V850 specific file flags. */
- static bool
- v850_elf_set_private_flags (bfd *abfd, flagword flags)
- {
- BFD_ASSERT (!elf_flags_init (abfd)
- || elf_elfheader (abfd)->e_flags == flags);
- elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = true;
- return true;
- }
- /* Merge backend specific data from an object file
- to the output object file when linking. */
- static bool
- v850_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
- {
- bfd *obfd = info->output_bfd;
- flagword out_flags;
- flagword in_flags;
- bool result = true;
- if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
- || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
- result &= v850_elf_merge_notes (ibfd, obfd);
- in_flags = elf_elfheader (ibfd)->e_flags;
- out_flags = elf_elfheader (obfd)->e_flags;
- if (! elf_flags_init (obfd))
- {
- /* If the input is the default architecture then do not
- bother setting the flags for the output architecture,
- instead allow future merges to do this. If no future
- merges ever set these flags then they will retain their
- unitialised values, which surprise surprise, correspond
- to the default values. */
- if (bfd_get_arch_info (ibfd)->the_default)
- return true;
- elf_flags_init (obfd) = true;
- elf_elfheader (obfd)->e_flags = in_flags;
- if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
- && bfd_get_arch_info (obfd)->the_default)
- result &= bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
- return result;
- }
- /* Check flag compatibility. */
- if (in_flags == out_flags)
- return result;
- if (bfd_get_arch (obfd) == bfd_arch_v850_rh850)
- {
- if ((in_flags & EF_V800_850E3) != (out_flags & EF_V800_850E3))
- {
- _bfd_error_handler
- (_("%pB: architecture mismatch with previous modules"), ibfd);
- elf_elfheader (obfd)->e_flags |= EF_V800_850E3;
- }
- return result;
- }
- if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
- && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
- {
- /* Allow earlier architecture binaries to be linked with later binaries.
- Set the output binary to the later architecture, except for v850e1,
- which we set to v850e. */
- if ( (in_flags & EF_V850_ARCH) == E_V850E1_ARCH
- && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
- return result;
- if ( (in_flags & EF_V850_ARCH) == E_V850_ARCH
- && (out_flags & EF_V850_ARCH) == E_V850E_ARCH)
- {
- elf_elfheader (obfd)->e_flags =
- ((out_flags & ~ EF_V850_ARCH) | E_V850E_ARCH);
- return result;
- }
- if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
- || (in_flags & EF_V850_ARCH) == E_V850E_ARCH)
- && (out_flags & EF_V850_ARCH) == E_V850E2_ARCH)
- {
- elf_elfheader (obfd)->e_flags =
- ((out_flags & ~ EF_V850_ARCH) | E_V850E2_ARCH);
- return result;
- }
- if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
- || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
- || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH)
- && (out_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
- {
- elf_elfheader (obfd)->e_flags =
- ((out_flags & ~ EF_V850_ARCH) | E_V850E2V3_ARCH);
- return result;
- }
- if (( (in_flags & EF_V850_ARCH) == E_V850_ARCH
- || (in_flags & EF_V850_ARCH) == E_V850E_ARCH
- || (in_flags & EF_V850_ARCH) == E_V850E2_ARCH
- || (in_flags & EF_V850_ARCH) == E_V850E2V3_ARCH)
- && (out_flags & EF_V850_ARCH) == E_V850E3V5_ARCH)
- {
- elf_elfheader (obfd)->e_flags =
- ((out_flags & ~ EF_V850_ARCH) | E_V850E3V5_ARCH);
- return result;
- }
- _bfd_error_handler
- (_("%pB: architecture mismatch with previous modules"), ibfd);
- }
- return result;
- }
- /* Display the flags field. */
- static bool
- v850_elf_print_private_bfd_data (bfd *abfd, void * ptr)
- {
- FILE * file = (FILE *) ptr;
- BFD_ASSERT (abfd != NULL && ptr != NULL);
- _bfd_elf_print_private_bfd_data (abfd, ptr);
- /* xgettext:c-format. */
- fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
- if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
- {
- if ((elf_elfheader (abfd)->e_flags & EF_RH850_ABI) != EF_RH850_ABI)
- fprintf (file, _("unknown v850 architecture"));
- else if (elf_elfheader (abfd)->e_flags & EF_V800_850E3)
- fprintf (file, _("v850 E3 architecture"));
- else
- fprintf (file, _("v850 architecture"));
- }
- else
- {
- switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
- {
- default:
- case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
- case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
- case E_V850E1_ARCH: fprintf (file, _("v850e1 architecture")); break;
- case E_V850E2_ARCH: fprintf (file, _("v850e2 architecture")); break;
- case E_V850E2V3_ARCH: fprintf (file, _("v850e2v3 architecture")); break;
- case E_V850E3V5_ARCH: fprintf (file, _("v850e3v5 architecture")); break;
- }
- }
- fputc ('\n', file);
- v850_elf_print_notes (abfd, file);
- return true;
- }
- /* V850 ELF uses four common sections. One is the usual one, and the
- others are for (small) objects in one of the special data areas:
- small, tiny and zero. All the objects are kept together, and then
- referenced via the gp register, the ep register or the r0 register
- respectively, which yields smaller, faster assembler code. This
- approach is copied from elf32-mips.c. */
- static asection v850_elf_scom_section;
- static const asymbol v850_elf_scom_symbol =
- GLOBAL_SYM_INIT (".scommon", &v850_elf_scom_section);
- static asection v850_elf_scom_section =
- BFD_FAKE_SECTION (v850_elf_scom_section, &v850_elf_scom_symbol,
- ".scommon", 0,
- SEC_IS_COMMON | SEC_SMALL_DATA | SEC_ALLOC | SEC_DATA);
- static asection v850_elf_tcom_section;
- static const asymbol v850_elf_tcom_symbol =
- GLOBAL_SYM_INIT (".tcommon", &v850_elf_tcom_section);
- static asection v850_elf_tcom_section =
- BFD_FAKE_SECTION (v850_elf_tcom_section, &v850_elf_tcom_symbol,
- ".tcommon", 0,
- SEC_IS_COMMON | SEC_SMALL_DATA);
- static asection v850_elf_zcom_section;
- static const asymbol v850_elf_zcom_symbol =
- GLOBAL_SYM_INIT (".zcommon", &v850_elf_zcom_section);
- static asection v850_elf_zcom_section =
- BFD_FAKE_SECTION (v850_elf_zcom_section, &v850_elf_zcom_symbol,
- ".zcommon", 0,
- SEC_IS_COMMON | SEC_SMALL_DATA);
- /* Given a BFD section, try to locate the
- corresponding ELF section index. */
- static bool
- v850_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
- asection *sec,
- int *retval)
- {
- if (strcmp (bfd_section_name (sec), ".scommon") == 0)
- *retval = SHN_V850_SCOMMON;
- else if (strcmp (bfd_section_name (sec), ".tcommon") == 0)
- *retval = SHN_V850_TCOMMON;
- else if (strcmp (bfd_section_name (sec), ".zcommon") == 0)
- *retval = SHN_V850_ZCOMMON;
- else
- return false;
- return true;
- }
- /* Handle the special V850 section numbers that a symbol may use. */
- static void
- v850_elf_symbol_processing (bfd *abfd, asymbol *asym)
- {
- elf_symbol_type * elfsym = (elf_symbol_type *) asym;
- unsigned int indx;
- indx = elfsym->internal_elf_sym.st_shndx;
- /* If the section index is an "ordinary" index, then it may
- refer to a v850 specific section created by the assembler.
- Check the section's type and change the index it matches.
- FIXME: Should we alter the st_shndx field as well ? */
- if (indx < elf_numsections (abfd))
- switch (elf_elfsections (abfd)[indx]->sh_type)
- {
- case SHT_V850_SCOMMON:
- indx = SHN_V850_SCOMMON;
- break;
- case SHT_V850_TCOMMON:
- indx = SHN_V850_TCOMMON;
- break;
- case SHT_V850_ZCOMMON:
- indx = SHN_V850_ZCOMMON;
- break;
- default:
- break;
- }
- switch (indx)
- {
- case SHN_V850_SCOMMON:
- asym->section = & v850_elf_scom_section;
- asym->value = elfsym->internal_elf_sym.st_size;
- break;
- case SHN_V850_TCOMMON:
- asym->section = & v850_elf_tcom_section;
- asym->value = elfsym->internal_elf_sym.st_size;
- break;
- case SHN_V850_ZCOMMON:
- asym->section = & v850_elf_zcom_section;
- asym->value = elfsym->internal_elf_sym.st_size;
- break;
- }
- }
- /* Hook called by the linker routine which adds symbols from an object
- file. We must handle the special v850 section numbers here. */
- static bool
- v850_elf_add_symbol_hook (bfd *abfd,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- Elf_Internal_Sym *sym,
- const char **namep ATTRIBUTE_UNUSED,
- flagword *flagsp ATTRIBUTE_UNUSED,
- asection **secp,
- bfd_vma *valp)
- {
- unsigned int indx = sym->st_shndx;
- /* If the section index is an "ordinary" index, then it may
- refer to a v850 specific section created by the assembler.
- Check the section's type and change the index it matches.
- FIXME: Should we alter the st_shndx field as well ? */
- if (indx < elf_numsections (abfd))
- switch (elf_elfsections (abfd)[indx]->sh_type)
- {
- case SHT_V850_SCOMMON:
- indx = SHN_V850_SCOMMON;
- break;
- case SHT_V850_TCOMMON:
- indx = SHN_V850_TCOMMON;
- break;
- case SHT_V850_ZCOMMON:
- indx = SHN_V850_ZCOMMON;
- break;
- default:
- break;
- }
- switch (indx)
- {
- case SHN_V850_SCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".scommon");
- (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
- *valp = sym->st_size;
- break;
- case SHN_V850_TCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".tcommon");
- (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
- *valp = sym->st_size;
- break;
- case SHN_V850_ZCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".zcommon");
- (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
- *valp = sym->st_size;
- break;
- }
- return true;
- }
- static int
- v850_elf_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
- const char *name ATTRIBUTE_UNUSED,
- Elf_Internal_Sym *sym,
- asection *input_sec,
- struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
- {
- /* If we see a common symbol, which implies a relocatable link, then
- if a symbol was in a special common section in an input file, mark
- it as a special common in the output file. */
- if (sym->st_shndx == SHN_COMMON)
- {
- if (strcmp (input_sec->name, ".scommon") == 0)
- sym->st_shndx = SHN_V850_SCOMMON;
- else if (strcmp (input_sec->name, ".tcommon") == 0)
- sym->st_shndx = SHN_V850_TCOMMON;
- else if (strcmp (input_sec->name, ".zcommon") == 0)
- sym->st_shndx = SHN_V850_ZCOMMON;
- }
- /* The price we pay for using h->other unused bits as flags in the
- linker is cleaning up after ourselves. */
- sym->st_other &= ~(V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA
- | V850_OTHER_ERROR);
- return 1;
- }
- static bool
- v850_elf_section_from_shdr (bfd *abfd,
- Elf_Internal_Shdr *hdr,
- const char *name,
- int shindex)
- {
- flagword flags;
- /* There ought to be a place to keep ELF backend specific flags, but
- at the moment there isn't one. We just keep track of the
- sections by their name, instead. */
- if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
- return false;
- flags = 0;
- switch (hdr->sh_type)
- {
- case SHT_V850_SCOMMON:
- case SHT_V850_TCOMMON:
- case SHT_V850_ZCOMMON:
- flags = SEC_IS_COMMON;
- }
- if ((hdr->sh_flags & SHF_V850_GPREL) != 0)
- flags |= SEC_SMALL_DATA;
- return (flags == 0
- || bfd_set_section_flags (hdr->bfd_section,
- hdr->bfd_section->flags | flags));
- }
- /* Set the correct type for a V850 ELF section. We do this
- by the section name, which is a hack, but ought to work. */
- static bool
- v850_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
- Elf_Internal_Shdr *hdr,
- asection *sec)
- {
- const char * name;
- name = bfd_section_name (sec);
- if (strcmp (name, ".scommon") == 0)
- hdr->sh_type = SHT_V850_SCOMMON;
- else if (strcmp (name, ".tcommon") == 0)
- hdr->sh_type = SHT_V850_TCOMMON;
- else if (strcmp (name, ".zcommon") == 0)
- hdr->sh_type = SHT_V850_ZCOMMON;
- /* Tweak the section type of .note.renesas. */
- else if (strcmp (name, V850_NOTE_SECNAME) == 0)
- {
- hdr->sh_type = SHT_RENESAS_INFO;
- hdr->sh_entsize = SIZEOF_V850_NOTE;
- }
- return true;
- }
- /* Delete some bytes from a section while relaxing. */
- static bool
- v850_elf_relax_delete_bytes (bfd *abfd,
- asection *sec,
- bfd_vma addr,
- bfd_vma toaddr,
- int count)
- {
- Elf_Internal_Shdr *symtab_hdr;
- Elf32_External_Sym *extsyms;
- Elf32_External_Sym *esym;
- Elf32_External_Sym *esymend;
- int sym_index;
- unsigned int sec_shndx;
- bfd_byte *contents;
- Elf_Internal_Rela *irel;
- Elf_Internal_Rela *irelend;
- struct elf_link_hash_entry *sym_hash;
- Elf_External_Sym_Shndx *shndx;
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
- sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
- contents = elf_section_data (sec)->this_hdr.contents;
- /* The deletion must stop at the next ALIGN reloc for an alignment
- power larger than the number of bytes we are deleting. */
- /* Actually delete the bytes. */
- #if (DEBUG_RELAX & 2)
- fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
- sec->name, addr, toaddr, count );
- #endif
- memmove (contents + addr, contents + addr + count,
- toaddr - addr - count);
- memset (contents + toaddr-count, 0, count);
- /* Adjust all the relocs. */
- irel = elf_section_data (sec)->relocs;
- irelend = irel + sec->reloc_count;
- if (elf_symtab_shndx_list (abfd))
- {
- Elf_Internal_Shdr *shndx_hdr;
- shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
- shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
- }
- else
- {
- shndx = NULL;
- }
- for (; irel < irelend; irel++)
- {
- bfd_vma raddr, paddr, symval;
- Elf_Internal_Sym isym;
- /* Get the new reloc address. */
- raddr = irel->r_offset;
- if ((raddr >= (addr + count) && raddr < toaddr))
- irel->r_offset -= count;
- if (raddr >= addr && raddr < addr + count)
- {
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
- (int) R_V850_NONE);
- continue;
- }
- if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
- continue;
- bfd_elf32_swap_symbol_in (abfd,
- extsyms + ELF32_R_SYM (irel->r_info),
- shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
- & isym);
- if (isym.st_shndx != sec_shndx)
- continue;
- /* Get the value of the symbol referred to by the reloc. */
- if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
- {
- symval = isym.st_value;
- #if (DEBUG_RELAX & 2)
- {
- char * name = bfd_elf_string_from_elf_section
- (abfd, symtab_hdr->sh_link, isym.st_name);
- fprintf (stderr,
- "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
- sec->name, name, isym.st_name,
- sec->output_section->vma, sec->output_offset,
- isym.st_value, irel->r_addend);
- }
- #endif
- }
- 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);
- symval = h->root.u.def.value;
- #if (DEBUG_RELAX & 2)
- fprintf (stderr,
- "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
- sec->name, h->root.root.string, h->root.u.def.value,
- sec->output_section->vma, sec->output_offset, irel->r_addend);
- #endif
- }
- paddr = symval + irel->r_addend;
- if ( (symval >= addr + count && symval < toaddr)
- && (paddr < addr + count || paddr >= toaddr))
- irel->r_addend += count;
- else if ( (symval < addr + count || symval >= toaddr)
- && (paddr >= addr + count && paddr < toaddr))
- irel->r_addend -= count;
- }
- /* Adjust the local symbols defined in this section. */
- esym = extsyms;
- esymend = esym + symtab_hdr->sh_info;
- for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
- {
- Elf_Internal_Sym isym;
- bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
- if (isym.st_shndx == sec_shndx
- && isym.st_value >= addr + count
- && isym.st_value < toaddr)
- {
- isym.st_value -= count;
- if (isym.st_value + isym.st_size >= toaddr)
- isym.st_size += count;
- bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
- }
- else if (isym.st_shndx == sec_shndx
- && isym.st_value < addr + count)
- {
- if (isym.st_value+isym.st_size >= addr + count
- && isym.st_value+isym.st_size < toaddr)
- isym.st_size -= count;
- if (isym.st_value >= addr
- && isym.st_value < addr + count)
- isym.st_value = addr;
- bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
- }
- }
- /* Now adjust the global symbols defined in this section. */
- esym = extsyms + symtab_hdr->sh_info;
- esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
- for (sym_index = 0; esym < esymend; esym ++, sym_index ++)
- {
- Elf_Internal_Sym isym;
- bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
- sym_hash = elf_sym_hashes (abfd) [sym_index];
- if (isym.st_shndx == sec_shndx
- && ((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 + count
- && (sym_hash)->root.u.def.value < toaddr)
- {
- if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
- {
- isym.st_size += count;
- bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
- }
- (sym_hash)->root.u.def.value -= count;
- }
- else if (isym.st_shndx == sec_shndx
- && ((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 + count)
- {
- if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
- && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
- isym.st_size -= count;
- if ((sym_hash)->root.u.def.value >= addr
- && (sym_hash)->root.u.def.value < addr + count)
- (sym_hash)->root.u.def.value = addr;
- bfd_elf32_swap_symbol_out (abfd, & isym, esym, shndx);
- }
- if (shndx)
- ++ shndx;
- }
- return true;
- }
- #define NOP_OPCODE (0x0000)
- #define MOVHI 0x0640 /* 4byte. */
- #define MOVHI_MASK 0x07e0
- #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte. */
- #define MOVHI_R2(insn) ((insn) >> 11)
- #define MOVEA 0x0620 /* 2byte. */
- #define MOVEA_MASK 0x07e0
- #define MOVEA_R1(insn) ((insn) & 0x1f)
- #define MOVEA_R2(insn) ((insn) >> 11)
- #define JARL_4 0x00040780 /* 4byte. */
- #define JARL_4_MASK 0xFFFF07FF
- #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
- #define ADD_I 0x0240 /* 2byte. */
- #define ADD_I_MASK 0x07e0
- #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte. */
- #define ADD_R2(insn) ((insn) >> 11)
- #define JMP_R 0x0060 /* 2byte. */
- #define JMP_R_MASK 0xFFE0
- #define JMP_R1(insn) ((insn) & 0x1f)
- static bool
- v850_elf_relax_section (bfd *abfd,
- asection *sec,
- struct bfd_link_info *link_info,
- bool *again)
- {
- Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *irel;
- Elf_Internal_Rela *irelend;
- Elf_Internal_Rela *irelalign = NULL;
- Elf_Internal_Sym *isymbuf = NULL;
- bfd_byte *contents = NULL;
- bfd_vma addr = 0;
- bfd_vma toaddr;
- int align_pad_size = 0;
- bool result = true;
- *again = false;
- if (bfd_link_relocatable (link_info)
- || (sec->flags & SEC_RELOC) == 0
- || sec->reloc_count == 0)
- return true;
- symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
- internal_relocs = (_bfd_elf_link_read_relocs
- (abfd, sec, NULL, NULL, link_info->keep_memory));
- if (internal_relocs == NULL)
- goto error_return;
- irelend = internal_relocs + sec->reloc_count;
- while (addr < sec->size)
- {
- toaddr = sec->size;
- for (irel = internal_relocs; irel < irelend; irel ++)
- if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
- && irel->r_offset > addr
- && irel->r_offset < toaddr)
- toaddr = irel->r_offset;
- #ifdef DEBUG_RELAX
- fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
- addr, toaddr, align_pad_size);
- #endif
- if (irelalign)
- {
- bfd_vma alignto;
- bfd_vma alignmoveto;
- alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
- alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
- if (alignmoveto < alignto)
- {
- bfd_vma i;
- align_pad_size = alignto - alignmoveto;
- #ifdef DEBUG_RELAX
- fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
- alignmoveto, toaddr, align_pad_size);
- #endif
- if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
- toaddr, align_pad_size))
- goto error_return;
- for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
- (i + 1) < toaddr; i += 2)
- bfd_put_16 (abfd, NOP_OPCODE, contents + i);
- addr = alignmoveto;
- }
- else
- align_pad_size = 0;
- }
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- bfd_vma laddr;
- bfd_vma addend;
- bfd_vma symval;
- int insn[5];
- int no_match = -1;
- Elf_Internal_Rela *hi_irelfn;
- Elf_Internal_Rela *lo_irelfn;
- Elf_Internal_Rela *irelcall;
- bfd_signed_vma foff;
- unsigned int r_type;
- if (! (irel->r_offset >= addr && irel->r_offset < toaddr
- && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
- || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
- continue;
- #ifdef DEBUG_RELAX
- fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
- irel->r_info,
- irel->r_offset,
- irel->r_addend );
- #endif
- /* Get the section contents. */
- if (contents == NULL)
- {
- if (elf_section_data (sec)->this_hdr.contents != NULL)
- contents = elf_section_data (sec)->this_hdr.contents;
- 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;
- }
- laddr = irel->r_offset;
- if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
- {
- /* Check code for -mlong-calls output. */
- if (laddr + 16 <= (bfd_vma) sec->size)
- {
- insn[0] = bfd_get_16 (abfd, contents + laddr);
- insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
- insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
- insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
- insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
- if ((insn[0] & MOVHI_MASK) != MOVHI
- || MOVHI_R1 (insn[0]) != 0)
- no_match = 0;
- if (no_match < 0
- && ((insn[1] & MOVEA_MASK) != MOVEA
- || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
- no_match = 1;
- if (no_match < 0
- && (insn[2] & JARL_4_MASK) != JARL_4)
- no_match = 2;
- if (no_match < 0
- && ((insn[3] & ADD_I_MASK) != ADD_I
- || ADD_I5 (insn[3]) != 4
- || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
- no_match = 3;
- if (no_match < 0
- && ((insn[4] & JMP_R_MASK) != JMP_R
- || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
- no_match = 4;
- }
- else
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: %#" PRIx64 ": warning: %s points to "
- "unrecognized insns"),
- abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
- continue;
- }
- if (no_match >= 0)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: %#" PRIx64 ": warning: %s points to "
- "unrecognized insn %#x"),
- abfd,
- (uint64_t) (irel->r_offset + no_match),
- "R_V850_LONGCALL",
- insn[no_match]);
- continue;
- }
- /* Get the reloc for the address from which the register is
- being loaded. This reloc will tell us which function is
- actually being called. */
- for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
- {
- r_type = ELF32_R_TYPE (hi_irelfn->r_info);
- if (hi_irelfn->r_offset == laddr + 2
- && (r_type == (int) R_V850_HI16_S || r_type == (int) R_V810_WHI1))
- break;
- }
- for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
- {
- r_type = ELF32_R_TYPE (lo_irelfn->r_info);
- if (lo_irelfn->r_offset == laddr + 6
- && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
- break;
- }
- for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
- {
- r_type = ELF32_R_TYPE (irelcall->r_info);
- if (irelcall->r_offset == laddr + 8
- && (r_type == (int) R_V850_22_PCREL || r_type == (int) R_V850_PCR22))
- break;
- }
- if ( hi_irelfn == irelend
- || lo_irelfn == irelend
- || irelcall == irelend)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: %#" PRIx64 ": warning: %s points to "
- "unrecognized reloc"),
- abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL");
- continue;
- }
- if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
- {
- Elf_Internal_Sym * isym;
- /* A local symbol. */
- isym = isymbuf + ELF32_R_SYM (irelcall->r_info);
- symval = isym->st_value;
- }
- else
- {
- unsigned long indx;
- struct elf_link_hash_entry * h;
- /* An external symbol. */
- indx = ELF32_R_SYM (irelcall->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;
- }
- if (symval + irelcall->r_addend != irelcall->r_offset + 4)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: %#" PRIx64 ": warning: %s points to "
- "unrecognized reloc %#" PRIx64),
- abfd, (uint64_t) irel->r_offset, "R_V850_LONGCALL",
- (uint64_t) irelcall->r_offset);
- continue;
- }
- /* Get the value of the symbol referred to by the reloc. */
- if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
- {
- Elf_Internal_Sym *isym;
- asection *sym_sec;
- /* A local symbol. */
- isym = isymbuf + ELF32_R_SYM (hi_irelfn->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 (hi_irelfn->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);
- }
- addend = irel->r_addend;
- foff = (symval + addend
- - (irel->r_offset
- + sec->output_section->vma
- + sec->output_offset
- + 4));
- #ifdef DEBUG_RELAX
- fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
- irel->r_offset,
- (irel->r_offset
- + sec->output_section->vma
- + sec->output_offset),
- symval, addend, foff);
- #endif
- if (foff < -0x100000 || foff >= 0x100000)
- /* After all that work, we can't shorten this function call. */
- continue;
- /* 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. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (bfd_byte *) isymbuf;
- /* Replace the long call with a jarl. */
- if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_PCR22);
- else
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
- addend = 0;
- if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
- /* If this needs to be changed because of future relaxing,
- it will be handled here like other internal IND12W
- relocs. */
- bfd_put_32 (abfd,
- 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
- contents + irel->r_offset);
- else
- /* We can't fully resolve this yet, because the external
- symbol value may be changed by future relaxing.
- We let the final link phase handle it. */
- bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
- contents + irel->r_offset);
- hi_irelfn->r_info =
- ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
- lo_irelfn->r_info =
- ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
- irelcall->r_info =
- ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
- if (! v850_elf_relax_delete_bytes (abfd, sec,
- irel->r_offset + 4, toaddr, 12))
- goto error_return;
- align_pad_size += 12;
- }
- else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
- {
- /* Check code for -mlong-jumps output. */
- if (laddr + 10 <= (bfd_vma) sec->size)
- {
- insn[0] = bfd_get_16 (abfd, contents + laddr);
- insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
- insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
- if ((insn[0] & MOVHI_MASK) != MOVHI
- || MOVHI_R1 (insn[0]) != 0)
- no_match = 0;
- if (no_match < 0
- && ((insn[1] & MOVEA_MASK) != MOVEA
- || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
- no_match = 1;
- if (no_match < 0
- && ((insn[2] & JMP_R_MASK) != JMP_R
- || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
- no_match = 2;
- }
- else
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: %#" PRIx64 ": warning: %s points to "
- "unrecognized insns"),
- abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
- continue;
- }
- if (no_match >= 0)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: %#" PRIx64 ": warning: %s points to "
- "unrecognized insn %#x"),
- abfd,
- (uint64_t) (irel->r_offset + no_match),
- "R_V850_LONGJUMP",
- insn[no_match]);
- continue;
- }
- /* Get the reloc for the address from which the register is
- being loaded. This reloc will tell us which function is
- actually being called. */
- for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
- {
- r_type = ELF32_R_TYPE (hi_irelfn->r_info);
- if (hi_irelfn->r_offset == laddr + 2
- && ((r_type == (int) R_V850_HI16_S) || r_type == (int) R_V810_WHI1))
- break;
- }
- for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
- {
- r_type = ELF32_R_TYPE (lo_irelfn->r_info);
- if (lo_irelfn->r_offset == laddr + 6
- && (r_type == (int) R_V850_LO16 || r_type == (int) R_V810_WLO))
- break;
- }
- if ( hi_irelfn == irelend
- || lo_irelfn == irelend)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: %#" PRIx64 ": warning: %s points to "
- "unrecognized reloc"),
- abfd, (uint64_t) irel->r_offset, "R_V850_LONGJUMP");
- continue;
- }
- /* Get the value of the symbol referred to by the reloc. */
- if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
- {
- Elf_Internal_Sym * isym;
- asection * sym_sec;
- /* A local symbol. */
- isym = isymbuf + ELF32_R_SYM (hi_irelfn->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);
- #ifdef DEBUG_RELAX
- {
- char * name = bfd_elf_string_from_elf_section
- (abfd, symtab_hdr->sh_link, isym->st_name);
- fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
- sym_sec->name, name, isym->st_name,
- sym_sec->output_section->vma,
- sym_sec->output_offset,
- isym->st_value, irel->r_addend);
- }
- #endif
- }
- 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);
- #ifdef DEBUG_RELAX
- fprintf (stderr,
- "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
- sec->name, h->root.root.string, h->root.u.def.value,
- sec->output_section->vma, sec->output_offset, irel->r_addend);
- #endif
- }
- addend = irel->r_addend;
- foff = (symval + addend
- - (irel->r_offset
- + sec->output_section->vma
- + sec->output_offset
- + 4));
- #ifdef DEBUG_RELAX
- fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
- irel->r_offset,
- (irel->r_offset
- + sec->output_section->vma
- + sec->output_offset),
- symval, addend, foff);
- #endif
- if (foff < -0x100000 || foff >= 0x100000)
- /* After all that work, we can't shorten this function call. */
- continue;
- /* 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. */
- elf_section_data (sec)->relocs = internal_relocs;
- elf_section_data (sec)->this_hdr.contents = contents;
- symtab_hdr->contents = (bfd_byte *) isymbuf;
- if (foff < -0x100 || foff >= 0x100)
- {
- /* Replace the long jump with a jr. */
- if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PCR22);
- else
- irel->r_info =
- ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
- irel->r_addend = addend;
- addend = 0;
- if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
- /* If this needs to be changed because of future relaxing,
- it will be handled here like other internal IND12W
- relocs. */
- bfd_put_32 (abfd,
- 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
- contents + irel->r_offset);
- else
- /* We can't fully resolve this yet, because the external
- symbol value may be changed by future relaxing.
- We let the final link phase handle it. */
- bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
- hi_irelfn->r_info =
- ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
- lo_irelfn->r_info =
- ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
- if (!v850_elf_relax_delete_bytes (abfd, sec,
- irel->r_offset + 4, toaddr, 6))
- goto error_return;
- align_pad_size += 6;
- }
- else
- {
- /* Replace the long jump with a br. */
- if (bfd_get_arch (abfd) == bfd_arch_v850_rh850)
- irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_PC9);
- else
- irel->r_info =
- ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
- irel->r_addend = addend;
- addend = 0;
- if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
- /* If this needs to be changed because of future relaxing,
- it will be handled here like other internal IND12W
- relocs. */
- bfd_put_16 (abfd,
- 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
- contents + irel->r_offset);
- else
- /* We can't fully resolve this yet, because the external
- symbol value may be changed by future relaxing.
- We let the final link phase handle it. */
- bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
- hi_irelfn->r_info =
- ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
- lo_irelfn->r_info =
- ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
- if (!v850_elf_relax_delete_bytes (abfd, sec,
- irel->r_offset + 2, toaddr, 8))
- goto error_return;
- align_pad_size += 8;
- }
- }
- }
- irelalign = NULL;
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
- && irel->r_offset == toaddr)
- {
- irel->r_offset -= align_pad_size;
- if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
- irelalign = irel;
- }
- }
- addr = toaddr;
- }
- if (!irelalign)
- {
- #ifdef DEBUG_RELAX
- fprintf (stderr, "relax pad %d shorten %d -> %d\n",
- align_pad_size,
- sec->size,
- sec->size - align_pad_size);
- #endif
- sec->size -= align_pad_size;
- }
- finish:
- if (elf_section_data (sec)->relocs != internal_relocs)
- free (internal_relocs);
- if (elf_section_data (sec)->this_hdr.contents != (unsigned char *) contents)
- free (contents);
- if (symtab_hdr->contents != (bfd_byte *) isymbuf)
- free (isymbuf);
- return result;
- error_return:
- result = false;
- goto finish;
- }
- static const struct bfd_elf_special_section v850_elf_special_sections[] =
- {
- { STRING_COMMA_LEN (".call_table_data"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE) },
- { STRING_COMMA_LEN (".call_table_text"), 0, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
- + SHF_EXECINSTR) },
- { STRING_COMMA_LEN (".rosdata"), -2, SHT_PROGBITS, (SHF_ALLOC
- + SHF_V850_GPREL) },
- { STRING_COMMA_LEN (".rozdata"), -2, SHT_PROGBITS, (SHF_ALLOC
- + SHF_V850_R0REL) },
- { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_GPREL) },
- { STRING_COMMA_LEN (".scommon"), -2, SHT_V850_SCOMMON, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_GPREL) },
- { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_GPREL) },
- { STRING_COMMA_LEN (".tbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_EPREL) },
- { STRING_COMMA_LEN (".tcommon"), -2, SHT_V850_TCOMMON, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_R0REL) },
- { STRING_COMMA_LEN (".tdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_EPREL) },
- { STRING_COMMA_LEN (".zbss"), -2, SHT_NOBITS, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_R0REL) },
- { STRING_COMMA_LEN (".zcommon"), -2, SHT_V850_ZCOMMON, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_R0REL) },
- { STRING_COMMA_LEN (".zdata"), -2, SHT_PROGBITS, (SHF_ALLOC + SHF_WRITE
- + SHF_V850_R0REL) },
- { NULL, 0, 0, 0, 0 }
- };
- #define TARGET_LITTLE_SYM v850_elf32_vec
- #define TARGET_LITTLE_NAME "elf32-v850"
- #define ELF_ARCH bfd_arch_v850
- #define ELF_MACHINE_CODE EM_V850
- #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
- #define ELF_MAXPAGESIZE 0x1000
- #define elf_info_to_howto v850_elf_info_to_howto_rela
- #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
- #define elf_backend_check_relocs v850_elf_check_relocs
- #define elf_backend_relocate_section v850_elf_relocate_section
- #define elf_backend_object_p v850_elf_object_p
- #define elf_backend_final_write_processing v850_elf_final_write_processing
- #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
- #define elf_backend_symbol_processing v850_elf_symbol_processing
- #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
- #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
- #define elf_backend_section_from_shdr v850_elf_section_from_shdr
- #define elf_backend_fake_sections v850_elf_fake_sections
- #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
- #define elf_backend_special_sections v850_elf_special_sections
- #define elf_backend_can_gc_sections 1
- #define elf_backend_rela_normal 1
- #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
- #define bfd_elf32_bfd_is_target_special_symbol v850_elf_is_target_special_symbol
- #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
- #define bfd_elf32_bfd_reloc_name_lookup v850_elf_reloc_name_lookup
- #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
- #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
- #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
- #define bfd_elf32_bfd_relax_section v850_elf_relax_section
- #define elf_symbol_leading_char '_'
- #undef elf32_bed
- #define elf32_bed elf32_v850_bed
- #include "elf32-target.h"
- /* Map BFD reloc types to V800 ELF reloc types. */
- static const struct v850_elf_reloc_map v800_elf_reloc_map[] =
- {
- { BFD_RELOC_NONE, R_V810_NONE },
- { BFD_RELOC_8, R_V810_BYTE },
- { BFD_RELOC_16, R_V810_HWORD },
- { BFD_RELOC_32, R_V810_WORD },
- { BFD_RELOC_LO16, R_V810_WLO },
- { BFD_RELOC_HI16, R_V810_WHI },
- { BFD_RELOC_HI16_S, R_V810_WHI1 },
- { BFD_RELOC_V850_32_PCREL, R_V850_PC32 },
- { BFD_RELOC_V850_22_PCREL, R_V850_PCR22 },
- { BFD_RELOC_V850_17_PCREL, R_V850_PC17 },
- { BFD_RELOC_V850_16_PCREL, R_V850_PC16U },
- { BFD_RELOC_V850_9_PCREL, R_V850_PC9 },
- { BFD_RELOC_V850_LO16_S1, R_V810_WLO_1 }, /* Or R_V850_HWLO or R_V850_HWLO_1. */
- { BFD_RELOC_V850_23, R_V850_WLO23 },
- { BFD_RELOC_V850_LO16_SPLIT_OFFSET, R_V850_BLO },
- { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V810_HWORD },
- { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V810_HWORD },
- { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V810_HWORD },
- { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V810_GPWLO_1 }
- };
- /* Map a bfd relocation into the appropriate howto structure. */
- static reloc_howto_type *
- v800_elf_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
- {
- unsigned int i;
- BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
- for (i = ARRAY_SIZE (v800_elf_reloc_map); i --;)
- if (v800_elf_reloc_map[i].bfd_reloc_val == code)
- {
- unsigned int elf_reloc_val = v800_elf_reloc_map[i].elf_reloc_val;
- unsigned int idx = elf_reloc_val - R_V810_NONE;
- BFD_ASSERT (v800_elf_howto_table[idx].type == elf_reloc_val);
- return v800_elf_howto_table + idx;
- }
- #ifdef DEBUG
- fprintf (stderr, "failed to find v800 equiv of bfd reloc code %d\n", code);
- #endif
- return NULL;
- }
- static reloc_howto_type *
- v800_elf_reloc_name_lookup (bfd * abfd, const char * r_name)
- {
- unsigned int i;
- BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_v850_rh850);
- for (i = ARRAY_SIZE (v800_elf_howto_table); i--;)
- if (v800_elf_howto_table[i].name != NULL
- && strcasecmp (v800_elf_howto_table[i].name, r_name) == 0)
- return v800_elf_howto_table + i;
- return NULL;
- }
- /* Set the howto pointer in CACHE_PTR for a V800 ELF reloc. */
- static bool
- v800_elf_info_to_howto (bfd * abfd,
- arelent * cache_ptr,
- Elf_Internal_Rela * dst)
- {
- unsigned int r_type = ELF32_R_TYPE (dst->r_info);
- if (r_type == R_V800_NONE)
- r_type = R_V810_NONE;
- if (bfd_get_arch (abfd) != bfd_arch_v850_rh850
- || r_type >= (unsigned int) R_V800_max
- || r_type < (unsigned int) R_V810_NONE
- || (r_type - R_V810_NONE) >= ARRAY_SIZE (v800_elf_howto_table))
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- cache_ptr->howto = v800_elf_howto_table + (r_type - R_V810_NONE);
- return true;
- }
- #undef TARGET_LITTLE_SYM
- #define TARGET_LITTLE_SYM v800_elf32_vec
- #undef TARGET_LITTLE_NAME
- #define TARGET_LITTLE_NAME "elf32-v850-rh850"
- #undef ELF_ARCH
- #define ELF_ARCH bfd_arch_v850_rh850
- #undef ELF_MACHINE_CODE
- #define ELF_MACHINE_CODE EM_V800
- #undef ELF_MACHINE_ALT1
- #undef elf32_bed
- #define elf32_bed elf32_v850_rh850_bed
- #undef elf_info_to_howto
- #define elf_info_to_howto v800_elf_info_to_howto
- #undef elf_info_to_howto_rel
- #define elf_info_to_howto_rel NULL
- #undef bfd_elf32_bfd_reloc_type_lookup
- #define bfd_elf32_bfd_reloc_type_lookup v800_elf_reloc_type_lookup
- #undef bfd_elf32_bfd_reloc_name_lookup
- #define bfd_elf32_bfd_reloc_name_lookup v800_elf_reloc_name_lookup
- #include "elf32-target.h"
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