diff options
Diffstat (limited to 'binutils-2.17/bfd/elf32-ip2k.c')
| -rw-r--r-- | binutils-2.17/bfd/elf32-ip2k.c | 1573 |
1 files changed, 0 insertions, 1573 deletions
diff --git a/binutils-2.17/bfd/elf32-ip2k.c b/binutils-2.17/bfd/elf32-ip2k.c deleted file mode 100644 index 135ef131..00000000 --- a/binutils-2.17/bfd/elf32-ip2k.c +++ /dev/null @@ -1,1573 +0,0 @@ -/* Ubicom IP2xxx specific support for 32-bit ELF - Copyright 2000, 2001, 2002, 2003, 2004, 2005 - 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 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/ip2k.h" - -/* Struct used to pass miscellaneous paramaters which - helps to avoid overly long parameter lists. */ -struct misc -{ - Elf_Internal_Shdr * symtab_hdr; - Elf_Internal_Rela * irelbase; - bfd_byte * contents; - Elf_Internal_Sym * isymbuf; -}; - -struct ip2k_opcode -{ - unsigned short opcode; - unsigned short mask; -}; - -static bfd_boolean ip2k_relaxed = FALSE; - -static const struct ip2k_opcode ip2k_page_opcode[] = -{ - {0x0010, 0xFFF8}, /* Page. */ - {0x0000, 0x0000}, -}; - -#define IS_PAGE_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_page_opcode) - -static const struct ip2k_opcode ip2k_jmp_opcode[] = -{ - {0xE000, 0xE000}, /* Jmp. */ - {0x0000, 0x0000}, -}; - -#define IS_JMP_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_jmp_opcode) - -static const struct ip2k_opcode ip2k_snc_opcode[] = -{ - {0xA00B, 0xFFFF}, /* Snc. */ - {0x0000, 0x0000}, -}; - -#define IS_SNC_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_snc_opcode) - -static const struct ip2k_opcode ip2k_inc_1sp_opcode[] = -{ - {0x2B81, 0xFFFF}, /* Inc 1(SP). */ - {0x0000, 0x0000}, -}; - -#define IS_INC_1SP_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_inc_1sp_opcode) - -static const struct ip2k_opcode ip2k_add_2sp_w_opcode[] = -{ - {0x1F82, 0xFFFF}, /* Add 2(SP),w. */ - {0x0000, 0x0000}, -}; - -#define IS_ADD_2SP_W_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_add_2sp_w_opcode) - -static const struct ip2k_opcode ip2k_add_w_wreg_opcode[] = -{ - {0x1C0A, 0xFFFF}, /* Add w,wreg. */ - {0x1E0A, 0xFFFF}, /* Add wreg,w. */ - {0x0000, 0x0000}, -}; - -#define IS_ADD_W_WREG_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_add_w_wreg_opcode) - -static const struct ip2k_opcode ip2k_add_pcl_w_opcode[] = -{ - {0x1E09, 0xFFFF}, /* Add pcl,w. */ - {0x0000, 0x0000}, -}; - -#define IS_ADD_PCL_W_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_add_pcl_w_opcode) - -static const struct ip2k_opcode ip2k_skip_opcodes[] = -{ - {0xB000, 0xF000}, /* sb */ - {0xA000, 0xF000}, /* snb */ - {0x7600, 0xFE00}, /* cse/csne #lit */ - {0x5800, 0xFC00}, /* incsnz */ - {0x4C00, 0xFC00}, /* decsnz */ - {0x4000, 0xFC00}, /* cse/csne */ - {0x3C00, 0xFC00}, /* incsz */ - {0x2C00, 0xFC00}, /* decsz */ - {0x0000, 0x0000}, -}; - -#define IS_SKIP_OPCODE(code) \ - ip2k_is_opcode (code, ip2k_skip_opcodes) - -/* Relocation tables. */ -static reloc_howto_type ip2k_elf_howto_table [] = -{ -#define IP2K_HOWTO(t,rs,s,bs,pr,bp,name,sm,dm) \ - HOWTO(t, /* type */ \ - rs, /* rightshift */ \ - s, /* size (0 = byte, 1 = short, 2 = long) */ \ - bs, /* bitsize */ \ - pr, /* pc_relative */ \ - bp, /* bitpos */ \ - complain_overflow_dont,/* complain_on_overflow */ \ - bfd_elf_generic_reloc,/* special_function */ \ - name, /* name */ \ - FALSE, /* partial_inplace */ \ - sm, /* src_mask */ \ - dm, /* dst_mask */ \ - pr) /* pcrel_offset */ - - /* This reloc does nothing. */ - IP2K_HOWTO (R_IP2K_NONE, 0,2,32, FALSE, 0, "R_IP2K_NONE", 0, 0), - /* A 16 bit absolute relocation. */ - IP2K_HOWTO (R_IP2K_16, 0,1,16, FALSE, 0, "R_IP2K_16", 0, 0xffff), - /* A 32 bit absolute relocation. */ - IP2K_HOWTO (R_IP2K_32, 0,2,32, FALSE, 0, "R_IP2K_32", 0, 0xffffffff), - /* A 8-bit data relocation for the FR9 field. Ninth bit is computed specially. */ - IP2K_HOWTO (R_IP2K_FR9, 0,1,9, FALSE, 0, "R_IP2K_FR9", 0, 0x00ff), - /* A 4-bit data relocation. */ - IP2K_HOWTO (R_IP2K_BANK, 8,1,4, FALSE, 0, "R_IP2K_BANK", 0, 0x000f), - /* A 13-bit insn relocation - word address => right-shift 1 bit extra. */ - IP2K_HOWTO (R_IP2K_ADDR16CJP, 1,1,13, FALSE, 0, "R_IP2K_ADDR16CJP", 0, 0x1fff), - /* A 3-bit insn relocation - word address => right-shift 1 bit extra. */ - IP2K_HOWTO (R_IP2K_PAGE3, 14,1,3, FALSE, 0, "R_IP2K_PAGE3", 0, 0x0007), - /* Two 8-bit data relocations. */ - IP2K_HOWTO (R_IP2K_LO8DATA, 0,1,8, FALSE, 0, "R_IP2K_LO8DATA", 0, 0x00ff), - IP2K_HOWTO (R_IP2K_HI8DATA, 8,1,8, FALSE, 0, "R_IP2K_HI8DATA", 0, 0x00ff), - /* Two 8-bit insn relocations. word address => right-shift 1 bit extra. */ - IP2K_HOWTO (R_IP2K_LO8INSN, 1,1,8, FALSE, 0, "R_IP2K_LO8INSN", 0, 0x00ff), - IP2K_HOWTO (R_IP2K_HI8INSN, 9,1,8, FALSE, 0, "R_IP2K_HI8INSN", 0, 0x00ff), - - /* Special 1 bit relocation for SKIP instructions. */ - IP2K_HOWTO (R_IP2K_PC_SKIP, 1,1,1, FALSE, 12, "R_IP2K_PC_SKIP", 0xfffe, 0x1000), - /* 16 bit word address. */ - IP2K_HOWTO (R_IP2K_TEXT, 1,1,16, FALSE, 0, "R_IP2K_TEXT", 0, 0xffff), - /* A 7-bit offset relocation for the FR9 field. Eigth and ninth bit comes from insn. */ - IP2K_HOWTO (R_IP2K_FR_OFFSET, 0,1,9, FALSE, 0, "R_IP2K_FR_OFFSET", 0x180, 0x007f), - /* Bits 23:16 of an address. */ - IP2K_HOWTO (R_IP2K_EX8DATA, 16,1,8, FALSE, 0, "R_IP2K_EX8DATA", 0, 0x00ff), -}; - - -/* Map BFD reloc types to IP2K ELF reloc types. */ - -static reloc_howto_type * -ip2k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - /* Note that the ip2k_elf_howto_table is indxed by the R_ - constants. Thus, the order that the howto records appear in the - table *must* match the order of the relocation types defined in - include/elf/ip2k.h. */ - - switch (code) - { - case BFD_RELOC_NONE: - return &ip2k_elf_howto_table[ (int) R_IP2K_NONE]; - case BFD_RELOC_16: - return &ip2k_elf_howto_table[ (int) R_IP2K_16]; - case BFD_RELOC_32: - return &ip2k_elf_howto_table[ (int) R_IP2K_32]; - case BFD_RELOC_IP2K_FR9: - return &ip2k_elf_howto_table[ (int) R_IP2K_FR9]; - case BFD_RELOC_IP2K_BANK: - return &ip2k_elf_howto_table[ (int) R_IP2K_BANK]; - case BFD_RELOC_IP2K_ADDR16CJP: - return &ip2k_elf_howto_table[ (int) R_IP2K_ADDR16CJP]; - case BFD_RELOC_IP2K_PAGE3: - return &ip2k_elf_howto_table[ (int) R_IP2K_PAGE3]; - case BFD_RELOC_IP2K_LO8DATA: - return &ip2k_elf_howto_table[ (int) R_IP2K_LO8DATA]; - case BFD_RELOC_IP2K_HI8DATA: - return &ip2k_elf_howto_table[ (int) R_IP2K_HI8DATA]; - case BFD_RELOC_IP2K_LO8INSN: - return &ip2k_elf_howto_table[ (int) R_IP2K_LO8INSN]; - case BFD_RELOC_IP2K_HI8INSN: - return &ip2k_elf_howto_table[ (int) R_IP2K_HI8INSN]; - case BFD_RELOC_IP2K_PC_SKIP: - return &ip2k_elf_howto_table[ (int) R_IP2K_PC_SKIP]; - case BFD_RELOC_IP2K_TEXT: - return &ip2k_elf_howto_table[ (int) R_IP2K_TEXT]; - case BFD_RELOC_IP2K_FR_OFFSET: - return &ip2k_elf_howto_table[ (int) R_IP2K_FR_OFFSET]; - case BFD_RELOC_IP2K_EX8DATA: - return &ip2k_elf_howto_table[ (int) R_IP2K_EX8DATA]; - default: - /* Pacify gcc -Wall. */ - return NULL; - } - return NULL; -} - -static void -ip2k_get_mem (bfd *abfd ATTRIBUTE_UNUSED, - bfd_byte *addr, - int length, - bfd_byte *ptr) -{ - while (length --) - * ptr ++ = bfd_get_8 (abfd, addr ++); -} - -static bfd_boolean -ip2k_is_opcode (bfd_byte *code, const struct ip2k_opcode *opcodes) -{ - unsigned short insn = (code[0] << 8) | code[1]; - - while (opcodes->mask != 0) - { - if ((insn & opcodes->mask) == opcodes->opcode) - return TRUE; - - opcodes ++; - } - - return FALSE; -} - -#define PAGENO(ABSADDR) ((ABSADDR) & 0xFFFFC000) -#define BASEADDR(SEC) ((SEC)->output_section->vma + (SEC)->output_offset) - -#define UNDEFINED_SYMBOL (~(bfd_vma)0) - -/* Return the value of the symbol associated with the relocation IREL. */ - -static bfd_vma -symbol_value (bfd *abfd, - Elf_Internal_Shdr *symtab_hdr, - Elf_Internal_Sym *isymbuf, - Elf_Internal_Rela *irel) -{ - if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) - { - Elf_Internal_Sym *isym; - asection *sym_sec; - - isym = isymbuf + ELF32_R_SYM (irel->r_info); - if (isym->st_shndx == SHN_UNDEF) - sym_sec = bfd_und_section_ptr; - else if (isym->st_shndx == SHN_ABS) - sym_sec = bfd_abs_section_ptr; - else if (isym->st_shndx == SHN_COMMON) - sym_sec = bfd_com_section_ptr; - else - sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); - - return isym->st_value + BASEADDR (sym_sec); - } - else - { - unsigned long indx; - struct elf_link_hash_entry *h; - - 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) - return UNDEFINED_SYMBOL; - - return (h->root.u.def.value + BASEADDR (h->root.u.def.section)); - } -} - -/* Determine if the instruction sequence matches that for - the prologue of a switch dispatch table with fewer than - 128 entries. - - sc - page $nnn0 - jmp $nnn0 - add w,wreg - add pcl,w - addr=> - page $nnn1 - jmp $nnn1 - page $nnn2 - jmp $nnn2 - ... - page $nnnN - jmp $nnnN - - After relaxation. - sc - page $nnn0 - jmp $nnn0 - add pcl,w - addr=> - jmp $nnn1 - jmp $nnn2 - ... - jmp $nnnN */ - -static int -ip2k_is_switch_table_128 (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - bfd_vma addr, - bfd_byte *contents) -{ - bfd_byte code[4]; - int index = 0; - - /* Check current page-jmp. */ - if (addr + 4 > sec->size) - return -1; - - ip2k_get_mem (abfd, contents + addr, 4, code); - - if ((! IS_PAGE_OPCODE (code + 0)) - || (! IS_JMP_OPCODE (code + 2))) - return -1; - - /* Search back. */ - while (1) - { - if (addr < 4) - return -1; - - /* Check previous 2 instructions. */ - ip2k_get_mem (abfd, contents + addr - 4, 4, code); - if ((IS_ADD_W_WREG_OPCODE (code + 0)) - && (IS_ADD_PCL_W_OPCODE (code + 2))) - return index; - - if ((! IS_PAGE_OPCODE (code + 0)) - || (! IS_JMP_OPCODE (code + 2))) - return -1; - - index++; - addr -= 4; - } -} - -/* Determine if the instruction sequence matches that for - the prologue switch dispatch table with fewer than - 256 entries but more than 127. - - Before relaxation. - push %lo8insn(label) ; Push address of table - push %hi8insn(label) - add w,wreg ; index*2 => offset - snc ; CARRY SET? - inc 1(sp) ; Propagate MSB into table address - add 2(sp),w ; Add low bits of offset to table address - snc ; and handle any carry-out - inc 1(sp) - addr=> - page __indjmp ; Do an indirect jump to that location - jmp __indjmp - label: ; case dispatch table starts here - page $nnn1 - jmp $nnn1 - page $nnn2 - jmp $nnn2 - ... - page $nnnN - jmp $nnnN - - After relaxation. - push %lo8insn(label) ; Push address of table - push %hi8insn(label) - add 2(sp),w ; Add low bits of offset to table address - snc ; and handle any carry-out - inc 1(sp) - addr=> - page __indjmp ; Do an indirect jump to that location - jmp __indjmp - label: ; case dispatch table starts here - jmp $nnn1 - jmp $nnn2 - ... - jmp $nnnN */ - -static int -ip2k_is_switch_table_256 (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - bfd_vma addr, - bfd_byte *contents) -{ - bfd_byte code[16]; - int index = 0; - - /* Check current page-jmp. */ - if (addr + 4 > sec->size) - return -1; - - ip2k_get_mem (abfd, contents + addr, 4, code); - if ((! IS_PAGE_OPCODE (code + 0)) - || (! IS_JMP_OPCODE (code + 2))) - return -1; - - /* Search back. */ - while (1) - { - if (addr < 16) - return -1; - - /* Check previous 8 instructions. */ - ip2k_get_mem (abfd, contents + addr - 16, 16, code); - if ((IS_ADD_W_WREG_OPCODE (code + 0)) - && (IS_SNC_OPCODE (code + 2)) - && (IS_INC_1SP_OPCODE (code + 4)) - && (IS_ADD_2SP_W_OPCODE (code + 6)) - && (IS_SNC_OPCODE (code + 8)) - && (IS_INC_1SP_OPCODE (code + 10)) - && (IS_PAGE_OPCODE (code + 12)) - && (IS_JMP_OPCODE (code + 14))) - return index; - - if ((IS_ADD_W_WREG_OPCODE (code + 2)) - && (IS_SNC_OPCODE (code + 4)) - && (IS_INC_1SP_OPCODE (code + 6)) - && (IS_ADD_2SP_W_OPCODE (code + 8)) - && (IS_SNC_OPCODE (code + 10)) - && (IS_INC_1SP_OPCODE (code + 12)) - && (IS_JMP_OPCODE (code + 14))) - return index; - - if ((! IS_PAGE_OPCODE (code + 0)) - || (! IS_JMP_OPCODE (code + 2))) - return -1; - - index++; - addr -= 4; - } -} - -/* Returns the expected page state for the given instruction not including - the effect of page instructions. */ - -static bfd_vma -ip2k_nominal_page_bits (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - bfd_vma addr, - bfd_byte *contents) -{ - bfd_vma page = PAGENO (BASEADDR (sec) + addr); - - /* Check if section flows into this page. If not then the page - bits are assumed to match the PC. This will be true unless - the user has a page instruction without a call/jump, in which - case they are on their own. */ - if (PAGENO (BASEADDR (sec)) == page) - return page; - - /* Section flows across page boundary. The page bits should match - the PC unless there is a possible flow from the previous page, - in which case it is not possible to determine the value of the - page bits. */ - while (PAGENO (BASEADDR (sec) + addr - 2) == page) - { - bfd_byte code[2]; - - addr -= 2; - ip2k_get_mem (abfd, contents + addr, 2, code); - if (!IS_PAGE_OPCODE (code)) - continue; - - /* Found a page instruction, check if jump table. */ - if (ip2k_is_switch_table_128 (abfd, sec, addr, contents) != -1) - /* Jump table => page is conditional. */ - continue; - - if (ip2k_is_switch_table_256 (abfd, sec, addr, contents) != -1) - /* Jump table => page is conditional. */ - continue; - - /* Found a page instruction, check if conditional. */ - if (addr >= 2) - { - ip2k_get_mem (abfd, contents + addr - 2, 2, code); - if (IS_SKIP_OPCODE (code)) - /* Page is conditional. */ - continue; - } - - /* Unconditional page instruction => page bits should be correct. */ - return page; - } - - /* Flow from previous page => page bits are impossible to determine. */ - return 0; -} - -static bfd_boolean -ip2k_test_page_insn (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - Elf_Internal_Rela *irel, - struct misc *misc) -{ - bfd_vma symval; - - /* Get the value of the symbol referred to by the reloc. */ - symval = symbol_value (abfd, misc->symtab_hdr, misc->isymbuf, irel); - if (symval == UNDEFINED_SYMBOL) - /* This appears to be a reference to an undefined - symbol. Just ignore it--it will be caught by the - regular reloc processing. */ - return FALSE; - - /* Test if we can delete this page instruction. */ - if (PAGENO (symval + irel->r_addend) != - ip2k_nominal_page_bits (abfd, sec, irel->r_offset, misc->contents)) - return FALSE; - - return TRUE; -} - -/* Parts of a Stabs entry. */ - -#define STRDXOFF 0 -#define TYPEOFF 4 -#define OTHEROFF 5 -#define DESCOFF 6 -#define VALOFF 8 -#define STABSIZE 12 - -/* Adjust all the relocations entries after adding or inserting instructions. */ - -static void -adjust_all_relocations (bfd *abfd, - asection *sec, - bfd_vma addr, - bfd_vma endaddr, - int count, - int noadj) -{ - Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Sym *isymbuf, *isym, *isymend; - unsigned int shndx; - bfd_byte *contents; - Elf_Internal_Rela *irel, *irelend, *irelbase; - struct elf_link_hash_entry **sym_hashes; - struct elf_link_hash_entry **end_hashes; - unsigned int symcount; - asection *stab; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; - - shndx = _bfd_elf_section_from_bfd_section (abfd, sec); - - contents = elf_section_data (sec)->this_hdr.contents; - - irelbase = elf_section_data (sec)->relocs; - irelend = irelbase + sec->reloc_count; - - for (irel = irelbase; irel < irelend; irel++) - { - if (ELF32_R_TYPE (irel->r_info) != R_IP2K_NONE) - { - /* Get the value of the symbol referred to by the reloc. */ - if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) - { - asection *sym_sec; - - /* A local symbol. */ - isym = isymbuf + ELF32_R_SYM (irel->r_info); - sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); - - if (isym->st_shndx == shndx) - { - bfd_vma baseaddr = BASEADDR (sec); - bfd_vma symval = BASEADDR (sym_sec) + isym->st_value - + irel->r_addend; - - if ((baseaddr + addr + noadj) <= symval - && symval < (baseaddr + endaddr)) - irel->r_addend += count; - } - } - } - - /* Do this only for PC space relocations. */ - if (addr <= irel->r_offset && irel->r_offset < endaddr) - irel->r_offset += count; - } - - /* Now fix the stab relocations. */ - stab = bfd_get_section_by_name (abfd, ".stab"); - if (stab) - { - bfd_byte *stabcontents, *stabend, *stabp; - bfd_size_type stab_size = stab->rawsize ? stab->rawsize : stab->size; - - irelbase = elf_section_data (stab)->relocs; - irelend = irelbase + stab->reloc_count; - - /* Pull out the contents of the stab section. */ - if (elf_section_data (stab)->this_hdr.contents != NULL) - stabcontents = elf_section_data (stab)->this_hdr.contents; - else - { - if (!bfd_malloc_and_get_section (abfd, stab, &stabcontents)) - { - if (stabcontents != NULL) - free (stabcontents); - return; - } - - /* We need to remember this. */ - elf_section_data (stab)->this_hdr.contents = stabcontents; - } - - stabend = stabcontents + stab_size; - - for (irel = irelbase; irel < irelend; irel++) - { - if (ELF32_R_TYPE (irel->r_info) != R_IP2K_NONE) - { - /* Get the value of the symbol referred to by the reloc. */ - if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) - { - asection *sym_sec; - - /* A local symbol. */ - isym = isymbuf + ELF32_R_SYM (irel->r_info); - sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); - - if (sym_sec == sec) - { - const char *name; - unsigned long strx; - unsigned char type, other; - unsigned short desc; - bfd_vma value; - bfd_vma baseaddr = BASEADDR (sec); - bfd_vma symval = BASEADDR (sym_sec) + isym->st_value - + irel->r_addend; - - if ((baseaddr + addr) <= symval - && symval <= (baseaddr + endaddr)) - irel->r_addend += count; - - /* Go hunt up a function and fix its line info if needed. */ - stabp = stabcontents + irel->r_offset - 8; - - /* Go pullout the stab entry. */ - strx = bfd_h_get_32 (abfd, stabp + STRDXOFF); - type = bfd_h_get_8 (abfd, stabp + TYPEOFF); - other = bfd_h_get_8 (abfd, stabp + OTHEROFF); - desc = bfd_h_get_16 (abfd, stabp + DESCOFF); - value = bfd_h_get_32 (abfd, stabp + VALOFF); - - name = bfd_get_stab_name (type); - - if (strcmp (name, "FUN") == 0) - { - int function_adjusted = 0; - - if (symval > (baseaddr + addr)) - /* Not in this function. */ - continue; - - /* Hey we got a function hit. */ - stabp += STABSIZE; - for (;stabp < stabend; stabp += STABSIZE) - { - /* Go pullout the stab entry. */ - strx = bfd_h_get_32 (abfd, stabp + STRDXOFF); - type = bfd_h_get_8 (abfd, stabp + TYPEOFF); - other = bfd_h_get_8 (abfd, stabp + OTHEROFF); - desc = bfd_h_get_16 (abfd, stabp + DESCOFF); - value = bfd_h_get_32 (abfd, stabp + VALOFF); - - name = bfd_get_stab_name (type); - - if (strcmp (name, "FUN") == 0) - { - /* Hit another function entry. */ - if (function_adjusted) - { - /* Adjust the value. */ - value += count; - - /* We need to put it back. */ - bfd_h_put_32 (abfd, value,stabp + VALOFF); - } - - /* And then bale out. */ - break; - } - - if (strcmp (name, "SLINE") == 0) - { - /* Got a line entry. */ - if ((baseaddr + addr) <= (symval + value)) - { - /* Adjust the line entry. */ - value += count; - - /* We need to put it back. */ - bfd_h_put_32 (abfd, value,stabp + VALOFF); - function_adjusted = 1; - } - } - } - } - } - } - } - } - } - - /* When adding an instruction back it is sometimes necessary to move any - global or local symbol that was referencing the first instruction of - the moved block to refer to the first instruction of the inserted block. - - For example adding a PAGE instruction before a CALL or JMP requires - that any label on the CALL or JMP is moved to the PAGE insn. */ - addr += noadj; - - /* Adjust the local symbols defined in this section. */ - isymend = isymbuf + symtab_hdr->sh_info; - for (isym = isymbuf; isym < isymend; isym++) - { - if (isym->st_shndx == shndx - && addr <= isym->st_value - && isym->st_value < endaddr) - isym->st_value += count; - } - - /* Now adjust the global symbols defined in this section. */ - symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) - - symtab_hdr->sh_info); - sym_hashes = elf_sym_hashes (abfd); - end_hashes = sym_hashes + symcount; - for (; sym_hashes < end_hashes; sym_hashes++) - { - struct elf_link_hash_entry *sym_hash = *sym_hashes; - - if ((sym_hash->root.type == bfd_link_hash_defined - || sym_hash->root.type == bfd_link_hash_defweak) - && sym_hash->root.u.def.section == sec) - { - if (addr <= sym_hash->root.u.def.value - && sym_hash->root.u.def.value < endaddr) - sym_hash->root.u.def.value += count; - } - } - - return; -} - -/* Delete some bytes from a section while relaxing. */ - -static bfd_boolean -ip2k_elf_relax_delete_bytes (bfd *abfd, - asection *sec, - bfd_vma addr, - int count) -{ - bfd_byte *contents = elf_section_data (sec)->this_hdr.contents; - bfd_vma endaddr = sec->size; - - /* Actually delete the bytes. */ - memmove (contents + addr, contents + addr + count, - endaddr - addr - count); - - sec->size -= count; - - adjust_all_relocations (abfd, sec, addr + count, endaddr, -count, 0); - return TRUE; -} - -static bfd_boolean -ip2k_delete_page_insn (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - Elf_Internal_Rela *irel, - bfd_boolean *again, - struct misc *misc) -{ - /* Note that we've changed the relocs, section contents, etc. */ - elf_section_data (sec)->relocs = misc->irelbase; - elf_section_data (sec)->this_hdr.contents = misc->contents; - misc->symtab_hdr->contents = (bfd_byte *) misc->isymbuf; - - /* Fix the relocation's type. */ - irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_IP2K_NONE); - - /* Delete the PAGE insn. */ - if (!ip2k_elf_relax_delete_bytes (abfd, sec, irel->r_offset, 2)) - return FALSE; - - /* Modified => will need to iterate relaxation again. */ - *again = TRUE; - - return TRUE; -} - -static bfd_boolean -ip2k_relax_switch_table_128 (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - Elf_Internal_Rela *irel, - bfd_boolean *again, - struct misc *misc) -{ - Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count; - Elf_Internal_Rela *ireltest = irel; - bfd_byte code[4]; - bfd_vma addr; - - /* Test all page instructions. */ - addr = irel->r_offset; - while (1) - { - if (addr + 4 > sec->size) - break; - - ip2k_get_mem (abfd, misc->contents + addr, 4, code); - if ((! IS_PAGE_OPCODE (code + 0)) - || (! IS_JMP_OPCODE (code + 2))) - break; - - /* Validate relocation entry (every entry should have a matching - relocation entry). */ - if (ireltest >= irelend) - { - _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information.")); - return FALSE; - } - - if (ireltest->r_offset != addr) - { - _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information.")); - return FALSE; - } - - if (! ip2k_test_page_insn (abfd, sec, ireltest, misc)) - /* Un-removable page insn => nothing can be done. */ - return TRUE; - - addr += 4; - ireltest += 2; - } - - /* Relaxable. Adjust table header. */ - ip2k_get_mem (abfd, misc->contents + irel->r_offset - 4, 4, code); - if ((! IS_ADD_W_WREG_OPCODE (code + 0)) - || (! IS_ADD_PCL_W_OPCODE (code + 2))) - { - _bfd_error_handler (_("ip2k relaxer: switch table header corrupt.")); - return FALSE; - } - - if (!ip2k_elf_relax_delete_bytes (abfd, sec, irel->r_offset - 4, 2)) - return FALSE; - - *again = TRUE; - - /* Delete all page instructions in table. */ - while (irel < ireltest) - { - if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc)) - return FALSE; - irel += 2; - } - - return TRUE; -} - -static bfd_boolean -ip2k_relax_switch_table_256 (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - Elf_Internal_Rela *irel, - bfd_boolean *again, - struct misc *misc) -{ - Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count; - Elf_Internal_Rela *ireltest = irel; - bfd_byte code[12]; - bfd_vma addr; - - /* Test all page instructions. */ - addr = irel->r_offset; - - while (1) - { - if (addr + 4 > sec->size) - break; - - ip2k_get_mem (abfd, misc->contents + addr, 4, code); - - if ((! IS_PAGE_OPCODE (code + 0)) - || (! IS_JMP_OPCODE (code + 2))) - break; - - /* Validate relocation entry (every entry should have a matching - relocation entry). */ - if (ireltest >= irelend) - { - _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information.")); - return FALSE; - } - - if (ireltest->r_offset != addr) - { - _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information.")); - return FALSE; - } - - if (!ip2k_test_page_insn (abfd, sec, ireltest, misc)) - /* Un-removable page insn => nothing can be done. */ - return TRUE; - - addr += 4; - ireltest += 2; - } - - /* Relaxable. Adjust table header. */ - ip2k_get_mem (abfd, misc->contents + irel->r_offset - 4, 2, code); - if (IS_PAGE_OPCODE (code)) - addr = irel->r_offset - 16; - else - addr = irel->r_offset - 14; - - ip2k_get_mem (abfd, misc->contents + addr, 12, code); - if ((!IS_ADD_W_WREG_OPCODE (code + 0)) - || (!IS_SNC_OPCODE (code + 2)) - || (!IS_INC_1SP_OPCODE (code + 4)) - || (!IS_ADD_2SP_W_OPCODE (code + 6)) - || (!IS_SNC_OPCODE (code + 8)) - || (!IS_INC_1SP_OPCODE (code + 10))) - { - _bfd_error_handler (_("ip2k relaxer: switch table header corrupt.")); - return FALSE; - } - - /* Delete first 3 opcodes. */ - if (!ip2k_elf_relax_delete_bytes (abfd, sec, addr + 0, 6)) - return FALSE; - - *again = TRUE; - - /* Delete all page instructions in table. */ - while (irel < ireltest) - { - if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc)) - return FALSE; - irel += 2; - } - - return TRUE; -} - -/* This function handles relaxation of a section in a specific page. */ - -static bfd_boolean -ip2k_elf_relax_section_page (bfd *abfd, - asection *sec, - bfd_boolean *again, - struct misc *misc, - unsigned long page_start, - unsigned long page_end) -{ - Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count; - Elf_Internal_Rela *irel; - int switch_table_128; - int switch_table_256; - - /* Walk thru the section looking for relaxation opportunities. */ - for (irel = misc->irelbase; irel < irelend; irel++) - { - if (ELF32_R_TYPE (irel->r_info) != (int) R_IP2K_PAGE3) - /* Ignore non page instructions. */ - continue; - - if (BASEADDR (sec) + irel->r_offset < page_start) - /* Ignore page instructions on earlier page - they have - already been processed. Remember that there is code flow - that crosses a page boundary. */ - continue; - - if (BASEADDR (sec) + irel->r_offset > page_end) - /* Flow beyond end of page => nothing more to do for this page. */ - return TRUE; - - /* Detect switch tables. */ - switch_table_128 = ip2k_is_switch_table_128 (abfd, sec, irel->r_offset, misc->contents); - switch_table_256 = ip2k_is_switch_table_256 (abfd, sec, irel->r_offset, misc->contents); - - if ((switch_table_128 > 0) || (switch_table_256 > 0)) - /* If the index is greater than 0 then it has already been processed. */ - continue; - - if (switch_table_128 == 0) - { - if (!ip2k_relax_switch_table_128 (abfd, sec, irel, again, misc)) - return FALSE; - - continue; - } - - if (switch_table_256 == 0) - { - if (!ip2k_relax_switch_table_256 (abfd, sec, irel, again, misc)) - return FALSE; - - continue; - } - - /* Simple relax. */ - if (ip2k_test_page_insn (abfd, sec, irel, misc)) - { - if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc)) - return FALSE; - - continue; - } - } - - return TRUE; -} - -/* This function handles relaxing for the ip2k. - - Principle: Start with the first page and remove page instructions that - are not require on this first page. By removing page instructions more - code will fit into this page - repeat until nothing more can be achieved - for this page. Move on to the next page. - - Processing the pages one at a time from the lowest page allows a removal - only policy to be used - pages can be removed but are never reinserted. */ - -static bfd_boolean -ip2k_elf_relax_section (bfd *abfd, - asection *sec, - struct bfd_link_info *link_info, - bfd_boolean *again) -{ - Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Rela *internal_relocs; - bfd_byte *contents = NULL; - Elf_Internal_Sym *isymbuf = NULL; - static asection * first_section = NULL; - static unsigned long search_addr; - static unsigned long page_start = 0; - static unsigned long page_end = 0; - static unsigned int pass = 0; - static bfd_boolean new_pass = FALSE; - static bfd_boolean changed = FALSE; - struct misc misc; - asection *stab; - - /* Assume nothing changes. */ - *again = FALSE; - - if (first_section == NULL) - { - ip2k_relaxed = TRUE; - first_section = sec; - } - - if (first_section == sec) - { - pass++; - new_pass = TRUE; - } - - /* We don't have to do anything for a relocatable link, - if this section does not have relocs, or if this is - not a code section. */ - if (link_info->relocatable - || (sec->flags & SEC_RELOC) == 0 - || sec->reloc_count == 0 - || (sec->flags & SEC_CODE) == 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; - - /* Make sure the stac.rela stuff gets read in. */ - stab = bfd_get_section_by_name (abfd, ".stab"); - - if (stab) - { - /* So stab does exits. */ - Elf_Internal_Rela * irelbase; - - irelbase = _bfd_elf_link_read_relocs (abfd, stab, NULL, NULL, - link_info->keep_memory); - } - - /* Get section contents cached copy if it exists. */ - if (contents == NULL) - { - /* Get cached copy if it exists. */ - if (elf_section_data (sec)->this_hdr.contents != NULL) - contents = elf_section_data (sec)->this_hdr.contents; - else - { - /* Go get them off disk. */ - if (!bfd_malloc_and_get_section (abfd, sec, &contents)) - goto error_return; - } - } - - /* Read this BFD's symbols cached copy if it exists. */ - 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; - } - - misc.symtab_hdr = symtab_hdr; - misc.isymbuf = isymbuf; - misc.irelbase = internal_relocs; - misc.contents = contents; - - /* This is where all the relaxation actually get done. */ - if ((pass == 1) || (new_pass && !changed)) - { - /* On the first pass we simply search for the lowest page that - we havn't relaxed yet. Note that the pass count is reset - each time a page is complete in order to move on to the next page. - If we can't find any more pages then we are finished. */ - if (new_pass) - { - pass = 1; - new_pass = FALSE; - changed = TRUE; /* Pre-initialize to break out of pass 1. */ - search_addr = 0xFFFFFFFF; - } - - if ((BASEADDR (sec) + sec->size < search_addr) - && (BASEADDR (sec) + sec->size > page_end)) - { - if (BASEADDR (sec) <= page_end) - search_addr = page_end + 1; - else - search_addr = BASEADDR (sec); - - /* Found a page => more work to do. */ - *again = TRUE; - } - } - else - { - if (new_pass) - { - new_pass = FALSE; - changed = FALSE; - page_start = PAGENO (search_addr); - page_end = page_start | 0x00003FFF; - } - - /* Only process sections in range. */ - if ((BASEADDR (sec) + sec->size >= page_start) - && (BASEADDR (sec) <= page_end)) - { - if (!ip2k_elf_relax_section_page (abfd, sec, &changed, &misc, page_start, page_end)) - return FALSE; - } - *again = TRUE; - } - - /* Perform some house keeping after relaxing the section. */ - - if (isymbuf != NULL - && symtab_hdr->contents != (unsigned char *) isymbuf) - { - if (! link_info->keep_memory) - free (isymbuf); - else - symtab_hdr->contents = (unsigned char *) isymbuf; - } - - if (contents != NULL - && elf_section_data (sec)->this_hdr.contents != contents) - { - if (! link_info->keep_memory) - free (contents); - else - { - /* Cache the section contents for elf_link_input_bfd. */ - elf_section_data (sec)->this_hdr.contents = contents; - } - } - - if (internal_relocs != NULL - && elf_section_data (sec)->relocs != internal_relocs) - free (internal_relocs); - - return TRUE; - - error_return: - if (isymbuf != NULL - && symtab_hdr->contents != (unsigned char *) isymbuf) - free (isymbuf); - if (contents != NULL - && elf_section_data (sec)->this_hdr.contents != contents) - free (contents); - if (internal_relocs != NULL - && elf_section_data (sec)->relocs != internal_relocs) - free (internal_relocs); - return FALSE; -} - -/* Set the howto pointer for a IP2K ELF reloc. */ - -static void -ip2k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED, - arelent * cache_ptr, - Elf_Internal_Rela * dst) -{ - unsigned int r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - cache_ptr->howto = & ip2k_elf_howto_table [r_type]; -} - -/* Perform a single relocation. - By default we use the standard BFD routines. */ - -static bfd_reloc_status_type -ip2k_final_link_relocate (reloc_howto_type * howto, - bfd * input_bfd, - asection * input_section, - bfd_byte * contents, - Elf_Internal_Rela * rel, - bfd_vma relocation) -{ - static bfd_vma page_addr = 0; - - bfd_reloc_status_type r = bfd_reloc_ok; - switch (howto->type) - { - /* Handle data space relocations. */ - case R_IP2K_FR9: - case R_IP2K_BANK: - if ((relocation & IP2K_DATA_MASK) == IP2K_DATA_VALUE) - relocation &= ~IP2K_DATA_MASK; - else - r = bfd_reloc_notsupported; - break; - - case R_IP2K_LO8DATA: - case R_IP2K_HI8DATA: - case R_IP2K_EX8DATA: - break; - - /* Handle insn space relocations. */ - case R_IP2K_PAGE3: - page_addr = BASEADDR (input_section) + rel->r_offset; - if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE) - relocation &= ~IP2K_INSN_MASK; - else - r = bfd_reloc_notsupported; - break; - - case R_IP2K_ADDR16CJP: - if (BASEADDR (input_section) + rel->r_offset != page_addr + 2) - { - /* No preceding page instruction, verify that it isn't needed. */ - if (PAGENO (relocation + rel->r_addend) != - ip2k_nominal_page_bits (input_bfd, input_section, - rel->r_offset, contents)) - _bfd_error_handler (_("ip2k linker: missing page instruction at 0x%08lx (dest = 0x%08lx)."), - BASEADDR (input_section) + rel->r_offset, - relocation + rel->r_addend); - } - else if (ip2k_relaxed) - { - /* Preceding page instruction. Verify that the page instruction is - really needed. One reason for the relaxation to miss a page is if - the section is not marked as executable. */ - if (!ip2k_is_switch_table_128 (input_bfd, input_section, - rel->r_offset - 2, contents) - && !ip2k_is_switch_table_256 (input_bfd, input_section, - rel->r_offset - 2, contents) - && (PAGENO (relocation + rel->r_addend) == - ip2k_nominal_page_bits (input_bfd, input_section, - rel->r_offset - 2, contents))) - _bfd_error_handler (_("ip2k linker: redundant page instruction at 0x%08lx (dest = 0x%08lx)."), - page_addr, - relocation + rel->r_addend); - } - if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE) - relocation &= ~IP2K_INSN_MASK; - else - r = bfd_reloc_notsupported; - break; - - case R_IP2K_LO8INSN: - case R_IP2K_HI8INSN: - case R_IP2K_PC_SKIP: - if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE) - relocation &= ~IP2K_INSN_MASK; - else - r = bfd_reloc_notsupported; - break; - - case R_IP2K_16: - /* If this is a relocation involving a TEXT - symbol, reduce it to a word address. */ - if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE) - howto = &ip2k_elf_howto_table[ (int) R_IP2K_TEXT]; - break; - - /* Pass others through. */ - default: - break; - } - - /* Only install relocation if above tests did not disqualify it. */ - if (r == bfd_reloc_ok) - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - - return r; -} - -/* Relocate a IP2K ELF section. - - The RELOCATE_SECTION function is called by the new ELF backend linker - to handle the relocations for a section. - - The relocs are always passed as Rela structures; if the section - actually uses Rel structures, the r_addend field will always be - zero. - - This function is responsible for adjusting the section contents as - necessary, and (if using Rela relocs and generating a relocatable - output file) adjusting the reloc addend as necessary. - - This function does not have to worry about setting the reloc - address or the reloc symbol index. - - LOCAL_SYMS is a pointer to the swapped in local symbols. - - LOCAL_SECTIONS is an array giving the section in the input file - corresponding to the st_shndx field of each local symbol. - - The global hash table entry for the global symbols can be found - via elf_sym_hashes (input_bfd). - - When generating relocatable output, this function must handle - STB_LOCAL/STT_SECTION symbols specially. The output symbol is - going to be the section symbol corresponding to the output - section, which means that the addend must be adjusted - accordingly. */ - -static bfd_boolean -ip2k_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED, - 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; - - if (info->relocatable) - return TRUE; - - symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - relend = relocs + input_section->reloc_count; - - for (rel = relocs; rel < relend; rel ++) - { - 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; - const char * name = NULL; - int r_type; - - /* This is a final link. */ - r_type = ELF32_R_TYPE (rel->r_info); - r_symndx = ELF32_R_SYM (rel->r_info); - howto = ip2k_elf_howto_table + ELF32_R_TYPE (rel->r_info); - h = NULL; - sym = NULL; - sec = NULL; - - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections [r_symndx]; - relocation = BASEADDR (sec) + sym->st_value; - - name = bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name); - name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; - } - else - { - bfd_boolean warned; - bfd_boolean unresolved_reloc; - - RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, - r_symndx, symtab_hdr, sym_hashes, - h, sec, relocation, - unresolved_reloc, warned); - - name = h->root.root.string; - } - - /* Finally, the sole IP2K-specific part. */ - r = ip2k_final_link_relocate (howto, input_bfd, input_section, - contents, rel, relocation); - - if (r != bfd_reloc_ok) - { - const char * msg = NULL; - - switch (r) - { - case bfd_reloc_overflow: - r = 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: - r = 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"); - break; - - /* This is how ip2k_final_link_relocate tells us of a non-kosher - reference between insn & data address spaces. */ - case bfd_reloc_notsupported: - if (sym != NULL) /* Only if it's not an unresolved symbol. */ - msg = _("unsupported relocation between data/insn address spaces"); - break; - - case bfd_reloc_dangerous: - msg = _("internal error: dangerous relocation"); - break; - - default: - msg = _("internal error: unknown error"); - break; - } - - if (msg) - r = info->callbacks->warning - (info, msg, name, input_bfd, input_section, rel->r_offset); - - if (! r) - return FALSE; - } - } - - return TRUE; -} - -static asection * -ip2k_elf_gc_mark_hook (asection *sec, - struct bfd_link_info *info ATTRIBUTE_UNUSED, - Elf_Internal_Rela *rel, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - if (h != NULL) - { - switch (ELF32_R_TYPE (rel->r_info)) - { - default: - switch (h->root.type) - { - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - return h->root.u.def.section; - - case bfd_link_hash_common: - return h->root.u.c.p->section; - - default: - break; - } - } - } - else - { - if (!(elf_bad_symtab (sec->owner) - && ELF_ST_BIND (sym->st_info) != STB_LOCAL) - && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) - && sym->st_shndx != SHN_COMMON)) - return bfd_section_from_elf_index (sec->owner, sym->st_shndx); - } - return NULL; -} - -static bfd_boolean -ip2k_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info ATTRIBUTE_UNUSED, - asection *sec ATTRIBUTE_UNUSED, - const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) -{ - /* We don't use got and plt entries for ip2k. */ - return TRUE; -} - -#define TARGET_BIG_SYM bfd_elf32_ip2k_vec -#define TARGET_BIG_NAME "elf32-ip2k" - -#define ELF_ARCH bfd_arch_ip2k -#define ELF_MACHINE_CODE EM_IP2K -#define ELF_MACHINE_ALT1 EM_IP2K_OLD -#define ELF_MAXPAGESIZE 1 /* No pages on the IP2K. */ - -#define elf_info_to_howto_rel NULL -#define elf_info_to_howto ip2k_info_to_howto_rela - -#define elf_backend_can_gc_sections 1 -#define elf_backend_rela_normal 1 -#define elf_backend_gc_mark_hook ip2k_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook ip2k_elf_gc_sweep_hook -#define elf_backend_relocate_section ip2k_elf_relocate_section - -#define elf_symbol_leading_char '_' -#define bfd_elf32_bfd_reloc_type_lookup ip2k_reloc_type_lookup -#define bfd_elf32_bfd_relax_section ip2k_elf_relax_section - -#include "elf32-target.h" |