diff options
Diffstat (limited to 'binutils-2.24/bfd/elf32-rx.c')
| -rw-r--r-- | binutils-2.24/bfd/elf32-rx.c | 3595 |
1 files changed, 0 insertions, 3595 deletions
diff --git a/binutils-2.24/bfd/elf32-rx.c b/binutils-2.24/bfd/elf32-rx.c deleted file mode 100644 index 39174bc4..00000000 --- a/binutils-2.24/bfd/elf32-rx.c +++ /dev/null @@ -1,3595 +0,0 @@ -/* Renesas RX specific support for 32-bit ELF. - Copyright (C) 2008, 2009, 2010, 2011, 2012 - 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "sysdep.h" -#include "bfd.h" -#include "bfd_stdint.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/rx.h" -#include "libiberty.h" - -#define RX_OPCODE_BIG_ENDIAN 0 - -/* This is a meta-target that's used only with objcopy, to avoid the - endian-swap we would otherwise get. We check for this in - rx_elf_object_p(). */ -const bfd_target bfd_elf32_rx_be_ns_vec; -const bfd_target bfd_elf32_rx_be_vec; - -#ifdef DEBUG -char * rx_get_reloc (long); -void rx_dump_symtab (bfd *, void *, void *); -#endif - -#define RXREL(n,sz,bit,shift,complain,pcrel) \ - HOWTO (R_RX_##n, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \ - bfd_elf_generic_reloc, "R_RX_" #n, FALSE, 0, ~0, FALSE) - -/* Note that the relocations around 0x7f are internal to this file; - feel free to move them as needed to avoid conflicts with published - relocation numbers. */ - -static reloc_howto_type rx_elf_howto_table [] = -{ - RXREL (NONE, 0, 0, 0, dont, FALSE), - RXREL (DIR32, 2, 32, 0, signed, FALSE), - RXREL (DIR24S, 2, 24, 0, signed, FALSE), - RXREL (DIR16, 1, 16, 0, dont, FALSE), - RXREL (DIR16U, 1, 16, 0, unsigned, FALSE), - RXREL (DIR16S, 1, 16, 0, signed, FALSE), - RXREL (DIR8, 0, 8, 0, dont, FALSE), - RXREL (DIR8U, 0, 8, 0, unsigned, FALSE), - RXREL (DIR8S, 0, 8, 0, signed, FALSE), - RXREL (DIR24S_PCREL, 2, 24, 0, signed, TRUE), - RXREL (DIR16S_PCREL, 1, 16, 0, signed, TRUE), - RXREL (DIR8S_PCREL, 0, 8, 0, signed, TRUE), - RXREL (DIR16UL, 1, 16, 2, unsigned, FALSE), - RXREL (DIR16UW, 1, 16, 1, unsigned, FALSE), - RXREL (DIR8UL, 0, 8, 2, unsigned, FALSE), - RXREL (DIR8UW, 0, 8, 1, unsigned, FALSE), - RXREL (DIR32_REV, 1, 16, 0, dont, FALSE), - RXREL (DIR16_REV, 1, 16, 0, dont, FALSE), - RXREL (DIR3U_PCREL, 0, 3, 0, dont, TRUE), - - EMPTY_HOWTO (0x13), - EMPTY_HOWTO (0x14), - EMPTY_HOWTO (0x15), - EMPTY_HOWTO (0x16), - EMPTY_HOWTO (0x17), - EMPTY_HOWTO (0x18), - EMPTY_HOWTO (0x19), - EMPTY_HOWTO (0x1a), - EMPTY_HOWTO (0x1b), - EMPTY_HOWTO (0x1c), - EMPTY_HOWTO (0x1d), - EMPTY_HOWTO (0x1e), - EMPTY_HOWTO (0x1f), - - RXREL (RH_3_PCREL, 0, 3, 0, signed, TRUE), - RXREL (RH_16_OP, 1, 16, 0, signed, FALSE), - RXREL (RH_24_OP, 2, 24, 0, signed, FALSE), - RXREL (RH_32_OP, 2, 32, 0, signed, FALSE), - RXREL (RH_24_UNS, 2, 24, 0, unsigned, FALSE), - RXREL (RH_8_NEG, 0, 8, 0, signed, FALSE), - RXREL (RH_16_NEG, 1, 16, 0, signed, FALSE), - RXREL (RH_24_NEG, 2, 24, 0, signed, FALSE), - RXREL (RH_32_NEG, 2, 32, 0, signed, FALSE), - RXREL (RH_DIFF, 2, 32, 0, signed, FALSE), - RXREL (RH_GPRELB, 1, 16, 0, unsigned, FALSE), - RXREL (RH_GPRELW, 1, 16, 0, unsigned, FALSE), - RXREL (RH_GPRELL, 1, 16, 0, unsigned, FALSE), - RXREL (RH_RELAX, 0, 0, 0, dont, FALSE), - - EMPTY_HOWTO (0x2e), - EMPTY_HOWTO (0x2f), - EMPTY_HOWTO (0x30), - EMPTY_HOWTO (0x31), - EMPTY_HOWTO (0x32), - EMPTY_HOWTO (0x33), - EMPTY_HOWTO (0x34), - EMPTY_HOWTO (0x35), - EMPTY_HOWTO (0x36), - EMPTY_HOWTO (0x37), - EMPTY_HOWTO (0x38), - EMPTY_HOWTO (0x39), - EMPTY_HOWTO (0x3a), - EMPTY_HOWTO (0x3b), - EMPTY_HOWTO (0x3c), - EMPTY_HOWTO (0x3d), - EMPTY_HOWTO (0x3e), - EMPTY_HOWTO (0x3f), - EMPTY_HOWTO (0x40), - - RXREL (ABS32, 2, 32, 0, dont, FALSE), - RXREL (ABS24S, 2, 24, 0, signed, FALSE), - RXREL (ABS16, 1, 16, 0, dont, FALSE), - RXREL (ABS16U, 1, 16, 0, unsigned, FALSE), - RXREL (ABS16S, 1, 16, 0, signed, FALSE), - RXREL (ABS8, 0, 8, 0, dont, FALSE), - RXREL (ABS8U, 0, 8, 0, unsigned, FALSE), - RXREL (ABS8S, 0, 8, 0, signed, FALSE), - RXREL (ABS24S_PCREL, 2, 24, 0, signed, TRUE), - RXREL (ABS16S_PCREL, 1, 16, 0, signed, TRUE), - RXREL (ABS8S_PCREL, 0, 8, 0, signed, TRUE), - RXREL (ABS16UL, 1, 16, 0, unsigned, FALSE), - RXREL (ABS16UW, 1, 16, 0, unsigned, FALSE), - RXREL (ABS8UL, 0, 8, 0, unsigned, FALSE), - RXREL (ABS8UW, 0, 8, 0, unsigned, FALSE), - RXREL (ABS32_REV, 2, 32, 0, dont, FALSE), - RXREL (ABS16_REV, 1, 16, 0, dont, FALSE), - -#define STACK_REL_P(x) ((x) <= R_RX_ABS16_REV && (x) >= R_RX_ABS32) - - EMPTY_HOWTO (0x52), - EMPTY_HOWTO (0x53), - EMPTY_HOWTO (0x54), - EMPTY_HOWTO (0x55), - EMPTY_HOWTO (0x56), - EMPTY_HOWTO (0x57), - EMPTY_HOWTO (0x58), - EMPTY_HOWTO (0x59), - EMPTY_HOWTO (0x5a), - EMPTY_HOWTO (0x5b), - EMPTY_HOWTO (0x5c), - EMPTY_HOWTO (0x5d), - EMPTY_HOWTO (0x5e), - EMPTY_HOWTO (0x5f), - EMPTY_HOWTO (0x60), - EMPTY_HOWTO (0x61), - EMPTY_HOWTO (0x62), - EMPTY_HOWTO (0x63), - EMPTY_HOWTO (0x64), - EMPTY_HOWTO (0x65), - EMPTY_HOWTO (0x66), - EMPTY_HOWTO (0x67), - EMPTY_HOWTO (0x68), - EMPTY_HOWTO (0x69), - EMPTY_HOWTO (0x6a), - EMPTY_HOWTO (0x6b), - EMPTY_HOWTO (0x6c), - EMPTY_HOWTO (0x6d), - EMPTY_HOWTO (0x6e), - EMPTY_HOWTO (0x6f), - EMPTY_HOWTO (0x70), - EMPTY_HOWTO (0x71), - EMPTY_HOWTO (0x72), - EMPTY_HOWTO (0x73), - EMPTY_HOWTO (0x74), - EMPTY_HOWTO (0x75), - EMPTY_HOWTO (0x76), - EMPTY_HOWTO (0x77), - - /* These are internal. */ - /* A 5-bit unsigned displacement to a B/W/L address, at bit position 8/12. */ - /* ---- ---- 4--- 3210. */ -#define R_RX_RH_ABS5p8B 0x78 - RXREL (RH_ABS5p8B, 0, 0, 0, dont, FALSE), -#define R_RX_RH_ABS5p8W 0x79 - RXREL (RH_ABS5p8W, 0, 0, 0, dont, FALSE), -#define R_RX_RH_ABS5p8L 0x7a - RXREL (RH_ABS5p8L, 0, 0, 0, dont, FALSE), - /* A 5-bit unsigned displacement to a B/W/L address, at bit position 5/12. */ - /* ---- -432 1--- 0---. */ -#define R_RX_RH_ABS5p5B 0x7b - RXREL (RH_ABS5p5B, 0, 0, 0, dont, FALSE), -#define R_RX_RH_ABS5p5W 0x7c - RXREL (RH_ABS5p5W, 0, 0, 0, dont, FALSE), -#define R_RX_RH_ABS5p5L 0x7d - RXREL (RH_ABS5p5L, 0, 0, 0, dont, FALSE), - /* A 4-bit unsigned immediate at bit position 8. */ -#define R_RX_RH_UIMM4p8 0x7e - RXREL (RH_UIMM4p8, 0, 0, 0, dont, FALSE), - /* A 4-bit negative unsigned immediate at bit position 8. */ -#define R_RX_RH_UNEG4p8 0x7f - RXREL (RH_UNEG4p8, 0, 0, 0, dont, FALSE), - /* End of internal relocs. */ - - RXREL (SYM, 2, 32, 0, dont, FALSE), - RXREL (OPneg, 2, 32, 0, dont, FALSE), - RXREL (OPadd, 2, 32, 0, dont, FALSE), - RXREL (OPsub, 2, 32, 0, dont, FALSE), - RXREL (OPmul, 2, 32, 0, dont, FALSE), - RXREL (OPdiv, 2, 32, 0, dont, FALSE), - RXREL (OPshla, 2, 32, 0, dont, FALSE), - RXREL (OPshra, 2, 32, 0, dont, FALSE), - RXREL (OPsctsize, 2, 32, 0, dont, FALSE), - RXREL (OPscttop, 2, 32, 0, dont, FALSE), - RXREL (OPand, 2, 32, 0, dont, FALSE), - RXREL (OPor, 2, 32, 0, dont, FALSE), - RXREL (OPxor, 2, 32, 0, dont, FALSE), - RXREL (OPnot, 2, 32, 0, dont, FALSE), - RXREL (OPmod, 2, 32, 0, dont, FALSE), - RXREL (OPromtop, 2, 32, 0, dont, FALSE), - RXREL (OPramtop, 2, 32, 0, dont, FALSE) -}; - -/* Map BFD reloc types to RX ELF reloc types. */ - -struct rx_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned int rx_reloc_val; -}; - -static const struct rx_reloc_map rx_reloc_map [] = -{ - { BFD_RELOC_NONE, R_RX_NONE }, - { BFD_RELOC_8, R_RX_DIR8S }, - { BFD_RELOC_16, R_RX_DIR16S }, - { BFD_RELOC_24, R_RX_DIR24S }, - { BFD_RELOC_32, R_RX_DIR32 }, - { BFD_RELOC_RX_16_OP, R_RX_DIR16 }, - { BFD_RELOC_RX_DIR3U_PCREL, R_RX_DIR3U_PCREL }, - { BFD_RELOC_8_PCREL, R_RX_DIR8S_PCREL }, - { BFD_RELOC_16_PCREL, R_RX_DIR16S_PCREL }, - { BFD_RELOC_24_PCREL, R_RX_DIR24S_PCREL }, - { BFD_RELOC_RX_8U, R_RX_DIR8U }, - { BFD_RELOC_RX_16U, R_RX_DIR16U }, - { BFD_RELOC_RX_24U, R_RX_RH_24_UNS }, - { BFD_RELOC_RX_NEG8, R_RX_RH_8_NEG }, - { BFD_RELOC_RX_NEG16, R_RX_RH_16_NEG }, - { BFD_RELOC_RX_NEG24, R_RX_RH_24_NEG }, - { BFD_RELOC_RX_NEG32, R_RX_RH_32_NEG }, - { BFD_RELOC_RX_DIFF, R_RX_RH_DIFF }, - { BFD_RELOC_RX_GPRELB, R_RX_RH_GPRELB }, - { BFD_RELOC_RX_GPRELW, R_RX_RH_GPRELW }, - { BFD_RELOC_RX_GPRELL, R_RX_RH_GPRELL }, - { BFD_RELOC_RX_RELAX, R_RX_RH_RELAX }, - { BFD_RELOC_RX_SYM, R_RX_SYM }, - { BFD_RELOC_RX_OP_SUBTRACT, R_RX_OPsub }, - { BFD_RELOC_RX_OP_NEG, R_RX_OPneg }, - { BFD_RELOC_RX_ABS8, R_RX_ABS8 }, - { BFD_RELOC_RX_ABS16, R_RX_ABS16 }, - { BFD_RELOC_RX_ABS16_REV, R_RX_ABS16_REV }, - { BFD_RELOC_RX_ABS32, R_RX_ABS32 }, - { BFD_RELOC_RX_ABS32_REV, R_RX_ABS32_REV }, - { BFD_RELOC_RX_ABS16UL, R_RX_ABS16UL }, - { BFD_RELOC_RX_ABS16UW, R_RX_ABS16UW }, - { BFD_RELOC_RX_ABS16U, R_RX_ABS16U } -}; - -#define BIGE(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) - -static reloc_howto_type * -rx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - unsigned int i; - - if (code == BFD_RELOC_RX_32_OP) - return rx_elf_howto_table + R_RX_DIR32; - - for (i = ARRAY_SIZE (rx_reloc_map); --i;) - if (rx_reloc_map [i].bfd_reloc_val == code) - return rx_elf_howto_table + rx_reloc_map[i].rx_reloc_val; - - return NULL; -} - -static reloc_howto_type * -rx_reloc_name_lookup (bfd * abfd ATTRIBUTE_UNUSED, const char * r_name) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE (rx_elf_howto_table); i++) - if (rx_elf_howto_table[i].name != NULL - && strcasecmp (rx_elf_howto_table[i].name, r_name) == 0) - return rx_elf_howto_table + i; - - return NULL; -} - -/* Set the howto pointer for an RX ELF reloc. */ - -static void -rx_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); - BFD_ASSERT (r_type < (unsigned int) R_RX_max); - cache_ptr->howto = rx_elf_howto_table + r_type; -} - -static bfd_vma -get_symbol_value (const char * name, - bfd_reloc_status_type * status, - struct bfd_link_info * info, - bfd * input_bfd, - asection * input_section, - int offset) -{ - bfd_vma value = 0; - struct bfd_link_hash_entry * h; - - h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); - - if (h == NULL - || (h->type != bfd_link_hash_defined - && h->type != bfd_link_hash_defweak)) - * status = info->callbacks->undefined_symbol - (info, name, input_bfd, input_section, offset, TRUE); - else - value = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - - return value; -} - -static bfd_vma -get_gp (bfd_reloc_status_type * status, - struct bfd_link_info * info, - bfd * abfd, - asection * sec, - int offset) -{ - static bfd_boolean cached = FALSE; - static bfd_vma cached_value = 0; - - if (!cached) - { - cached_value = get_symbol_value ("__gp", status, info, abfd, sec, offset); - cached = TRUE; - } - return cached_value; -} - -static bfd_vma -get_romstart (bfd_reloc_status_type * status, - struct bfd_link_info * info, - bfd * abfd, - asection * sec, - int offset) -{ - static bfd_boolean cached = FALSE; - static bfd_vma cached_value = 0; - - if (!cached) - { - cached_value = get_symbol_value ("_start", status, info, abfd, sec, offset); - cached = TRUE; - } - return cached_value; -} - -static bfd_vma -get_ramstart (bfd_reloc_status_type * status, - struct bfd_link_info * info, - bfd * abfd, - asection * sec, - int offset) -{ - static bfd_boolean cached = FALSE; - static bfd_vma cached_value = 0; - - if (!cached) - { - cached_value = get_symbol_value ("__datastart", status, info, abfd, sec, offset); - cached = TRUE; - } - return cached_value; -} - -#define NUM_STACK_ENTRIES 16 -static int32_t rx_stack [ NUM_STACK_ENTRIES ]; -static unsigned int rx_stack_top; - -#define RX_STACK_PUSH(val) \ - do \ - { \ - if (rx_stack_top < NUM_STACK_ENTRIES) \ - rx_stack [rx_stack_top ++] = (val); \ - else \ - r = bfd_reloc_dangerous; \ - } \ - while (0) - -#define RX_STACK_POP(dest) \ - do \ - { \ - if (rx_stack_top > 0) \ - (dest) = rx_stack [-- rx_stack_top]; \ - else \ - (dest) = 0, r = bfd_reloc_dangerous; \ - } \ - while (0) - -/* Relocate an RX ELF section. - There is some attempt to make this function usable for many architectures, - both USE_REL and USE_RELA ['twould be nice if such a critter existed], - if only to serve as a learning tool. - - 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 -rx_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; - bfd_boolean pid_mode; - bfd_boolean saw_subtract = FALSE; - - if (elf_elfheader (output_bfd)->e_flags & E_FLAG_RX_PID) - pid_mode = TRUE; - else - pid_mode = FALSE; - - 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; - bfd_boolean unresolved_reloc = TRUE; - int r_type; - - r_type = ELF32_R_TYPE (rel->r_info); - r_symndx = ELF32_R_SYM (rel->r_info); - - howto = rx_elf_howto_table + ELF32_R_TYPE (rel->r_info); - h = NULL; - sym = NULL; - sec = NULL; - relocation = 0; - - if (rx_stack_top == 0) - saw_subtract = FALSE; - - 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); - - name = bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name); - name = (sym->st_name == 0) ? bfd_section_name (input_bfd, sec) : name; - } - else - { - bfd_boolean warned; - - 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; - } - - if (sec != NULL && discarded_section (sec)) - RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, - rel, 1, relend, howto, 0, contents); - - if (info->relocatable) - { - /* This is a relocatable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) - rel->r_addend += sec->output_offset; - continue; - } - - if (h != NULL && h->root.type == bfd_link_hash_undefweak) - /* If the symbol is undefined and weak - then the relocation resolves to zero. */ - relocation = 0; - else - { - if (howto->pc_relative) - { - relocation -= (input_section->output_section->vma - + input_section->output_offset - + rel->r_offset); - if (r_type != R_RX_RH_3_PCREL - && r_type != R_RX_DIR3U_PCREL) - relocation ++; - } - - relocation += rel->r_addend; - } - - r = bfd_reloc_ok; - -#define RANGE(a,b) if (a > (long) relocation || (long) relocation > b) r = bfd_reloc_overflow -#define ALIGN(m) if (relocation & m) r = bfd_reloc_other; -#define OP(i) (contents[rel->r_offset + (i)]) -#define WARN_REDHAT(type) \ - _bfd_error_handler (_("%B:%A: Warning: deprecated Red Hat reloc " type " detected against: %s."), \ - input_bfd, input_section, name) - - /* Check for unsafe relocs in PID mode. These are any relocs where - an absolute address is being computed. There are special cases - for relocs against symbols that are known to be referenced in - crt0.o before the PID base address register has been initialised. */ -#define UNSAFE_FOR_PID \ - do \ - { \ - if (pid_mode \ - && sec != NULL \ - && sec->flags & SEC_READONLY \ - && !(input_section->flags & SEC_DEBUGGING) \ - && strcmp (name, "__pid_base") != 0 \ - && strcmp (name, "__gp") != 0 \ - && strcmp (name, "__romdatastart") != 0 \ - && !saw_subtract) \ - _bfd_error_handler (_("%B(%A): unsafe PID relocation %s at 0x%08lx (against %s in %s)"), \ - input_bfd, input_section, howto->name, \ - input_section->output_section->vma + input_section->output_offset + rel->r_offset, \ - name, sec->name); \ - } \ - while (0) - - /* Opcode relocs are always big endian. Data relocs are bi-endian. */ - switch (r_type) - { - case R_RX_NONE: - break; - - case R_RX_RH_RELAX: - break; - - case R_RX_RH_3_PCREL: - WARN_REDHAT ("RX_RH_3_PCREL"); - RANGE (3, 10); - OP (0) &= 0xf8; - OP (0) |= relocation & 0x07; - break; - - case R_RX_RH_8_NEG: - WARN_REDHAT ("RX_RH_8_NEG"); - relocation = - relocation; - case R_RX_DIR8S_PCREL: - UNSAFE_FOR_PID; - RANGE (-128, 127); - OP (0) = relocation; - break; - - case R_RX_DIR8S: - UNSAFE_FOR_PID; - RANGE (-128, 255); - OP (0) = relocation; - break; - - case R_RX_DIR8U: - UNSAFE_FOR_PID; - RANGE (0, 255); - OP (0) = relocation; - break; - - case R_RX_RH_16_NEG: - WARN_REDHAT ("RX_RH_16_NEG"); - relocation = - relocation; - case R_RX_DIR16S_PCREL: - UNSAFE_FOR_PID; - RANGE (-32768, 32767); -#if RX_OPCODE_BIG_ENDIAN -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_RH_16_OP: - WARN_REDHAT ("RX_RH_16_OP"); - UNSAFE_FOR_PID; - RANGE (-32768, 32767); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_DIR16S: - UNSAFE_FOR_PID; - RANGE (-32768, 65535); - if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) - { - OP (1) = relocation; - OP (0) = relocation >> 8; - } - else - { - OP (0) = relocation; - OP (1) = relocation >> 8; - } - break; - - case R_RX_DIR16U: - UNSAFE_FOR_PID; - RANGE (0, 65536); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_DIR16: - UNSAFE_FOR_PID; - RANGE (-32768, 65536); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_DIR16_REV: - UNSAFE_FOR_PID; - RANGE (-32768, 65536); -#if RX_OPCODE_BIG_ENDIAN - OP (0) = relocation; - OP (1) = relocation >> 8; -#else - OP (1) = relocation; - OP (0) = relocation >> 8; -#endif - break; - - case R_RX_DIR3U_PCREL: - RANGE (3, 10); - OP (0) &= 0xf8; - OP (0) |= relocation & 0x07; - break; - - case R_RX_RH_24_NEG: - UNSAFE_FOR_PID; - WARN_REDHAT ("RX_RH_24_NEG"); - relocation = - relocation; - case R_RX_DIR24S_PCREL: - RANGE (-0x800000, 0x7fffff); -#if RX_OPCODE_BIG_ENDIAN - OP (2) = relocation; - OP (1) = relocation >> 8; - OP (0) = relocation >> 16; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; -#endif - break; - - case R_RX_RH_24_OP: - UNSAFE_FOR_PID; - WARN_REDHAT ("RX_RH_24_OP"); - RANGE (-0x800000, 0x7fffff); -#if RX_OPCODE_BIG_ENDIAN - OP (2) = relocation; - OP (1) = relocation >> 8; - OP (0) = relocation >> 16; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; -#endif - break; - - case R_RX_DIR24S: - UNSAFE_FOR_PID; - RANGE (-0x800000, 0x7fffff); - if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) - { - OP (2) = relocation; - OP (1) = relocation >> 8; - OP (0) = relocation >> 16; - } - else - { - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - } - break; - - case R_RX_RH_24_UNS: - UNSAFE_FOR_PID; - WARN_REDHAT ("RX_RH_24_UNS"); - RANGE (0, 0xffffff); -#if RX_OPCODE_BIG_ENDIAN - OP (2) = relocation; - OP (1) = relocation >> 8; - OP (0) = relocation >> 16; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; -#endif - break; - - case R_RX_RH_32_NEG: - UNSAFE_FOR_PID; - WARN_REDHAT ("RX_RH_32_NEG"); - relocation = - relocation; -#if RX_OPCODE_BIG_ENDIAN - OP (3) = relocation; - OP (2) = relocation >> 8; - OP (1) = relocation >> 16; - OP (0) = relocation >> 24; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - OP (3) = relocation >> 24; -#endif - break; - - case R_RX_RH_32_OP: - UNSAFE_FOR_PID; - WARN_REDHAT ("RX_RH_32_OP"); -#if RX_OPCODE_BIG_ENDIAN - OP (3) = relocation; - OP (2) = relocation >> 8; - OP (1) = relocation >> 16; - OP (0) = relocation >> 24; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - OP (3) = relocation >> 24; -#endif - break; - - case R_RX_DIR32: - if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) - { - OP (3) = relocation; - OP (2) = relocation >> 8; - OP (1) = relocation >> 16; - OP (0) = relocation >> 24; - } - else - { - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - OP (3) = relocation >> 24; - } - break; - - case R_RX_DIR32_REV: - if (BIGE (output_bfd)) - { - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - OP (3) = relocation >> 24; - } - else - { - OP (3) = relocation; - OP (2) = relocation >> 8; - OP (1) = relocation >> 16; - OP (0) = relocation >> 24; - } - break; - - case R_RX_RH_DIFF: - { - bfd_vma val; - WARN_REDHAT ("RX_RH_DIFF"); - val = bfd_get_32 (output_bfd, & OP (0)); - val -= relocation; - bfd_put_32 (output_bfd, val, & OP (0)); - } - break; - - case R_RX_RH_GPRELB: - WARN_REDHAT ("RX_RH_GPRELB"); - relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset); - RANGE (0, 65535); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_RH_GPRELW: - WARN_REDHAT ("RX_RH_GPRELW"); - relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset); - ALIGN (1); - relocation >>= 1; - RANGE (0, 65535); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_RH_GPRELL: - WARN_REDHAT ("RX_RH_GPRELL"); - relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset); - ALIGN (3); - relocation >>= 2; - RANGE (0, 65535); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - /* Internal relocations just for relaxation: */ - case R_RX_RH_ABS5p5B: - RX_STACK_POP (relocation); - RANGE (0, 31); - OP (0) &= 0xf8; - OP (0) |= relocation >> 2; - OP (1) &= 0x77; - OP (1) |= (relocation << 6) & 0x80; - OP (1) |= (relocation << 3) & 0x08; - break; - - case R_RX_RH_ABS5p5W: - RX_STACK_POP (relocation); - RANGE (0, 62); - ALIGN (1); - relocation >>= 1; - OP (0) &= 0xf8; - OP (0) |= relocation >> 2; - OP (1) &= 0x77; - OP (1) |= (relocation << 6) & 0x80; - OP (1) |= (relocation << 3) & 0x08; - break; - - case R_RX_RH_ABS5p5L: - RX_STACK_POP (relocation); - RANGE (0, 124); - ALIGN (3); - relocation >>= 2; - OP (0) &= 0xf8; - OP (0) |= relocation >> 2; - OP (1) &= 0x77; - OP (1) |= (relocation << 6) & 0x80; - OP (1) |= (relocation << 3) & 0x08; - break; - - case R_RX_RH_ABS5p8B: - RX_STACK_POP (relocation); - RANGE (0, 31); - OP (0) &= 0x70; - OP (0) |= (relocation << 3) & 0x80; - OP (0) |= relocation & 0x0f; - break; - - case R_RX_RH_ABS5p8W: - RX_STACK_POP (relocation); - RANGE (0, 62); - ALIGN (1); - relocation >>= 1; - OP (0) &= 0x70; - OP (0) |= (relocation << 3) & 0x80; - OP (0) |= relocation & 0x0f; - break; - - case R_RX_RH_ABS5p8L: - RX_STACK_POP (relocation); - RANGE (0, 124); - ALIGN (3); - relocation >>= 2; - OP (0) &= 0x70; - OP (0) |= (relocation << 3) & 0x80; - OP (0) |= relocation & 0x0f; - break; - - case R_RX_RH_UIMM4p8: - RANGE (0, 15); - OP (0) &= 0x0f; - OP (0) |= relocation << 4; - break; - - case R_RX_RH_UNEG4p8: - RANGE (-15, 0); - OP (0) &= 0x0f; - OP (0) |= (-relocation) << 4; - break; - - /* Complex reloc handling: */ - - case R_RX_ABS32: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); -#if RX_OPCODE_BIG_ENDIAN - OP (3) = relocation; - OP (2) = relocation >> 8; - OP (1) = relocation >> 16; - OP (0) = relocation >> 24; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - OP (3) = relocation >> 24; -#endif - break; - - case R_RX_ABS32_REV: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); -#if RX_OPCODE_BIG_ENDIAN - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - OP (3) = relocation >> 24; -#else - OP (3) = relocation; - OP (2) = relocation >> 8; - OP (1) = relocation >> 16; - OP (0) = relocation >> 24; -#endif - break; - - case R_RX_ABS24S_PCREL: - case R_RX_ABS24S: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - RANGE (-0x800000, 0x7fffff); - if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) - { - OP (2) = relocation; - OP (1) = relocation >> 8; - OP (0) = relocation >> 16; - } - else - { - OP (0) = relocation; - OP (1) = relocation >> 8; - OP (2) = relocation >> 16; - } - break; - - case R_RX_ABS16: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - RANGE (-32768, 65535); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_ABS16_REV: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - RANGE (-32768, 65535); -#if RX_OPCODE_BIG_ENDIAN - OP (0) = relocation; - OP (1) = relocation >> 8; -#else - OP (1) = relocation; - OP (0) = relocation >> 8; -#endif - break; - - case R_RX_ABS16S_PCREL: - case R_RX_ABS16S: - RX_STACK_POP (relocation); - RANGE (-32768, 32767); - if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) - { - OP (1) = relocation; - OP (0) = relocation >> 8; - } - else - { - OP (0) = relocation; - OP (1) = relocation >> 8; - } - break; - - case R_RX_ABS16U: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - RANGE (0, 65536); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_ABS16UL: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - relocation >>= 2; - RANGE (0, 65536); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_ABS16UW: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - relocation >>= 1; - RANGE (0, 65536); -#if RX_OPCODE_BIG_ENDIAN - OP (1) = relocation; - OP (0) = relocation >> 8; -#else - OP (0) = relocation; - OP (1) = relocation >> 8; -#endif - break; - - case R_RX_ABS8: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - RANGE (-128, 255); - OP (0) = relocation; - break; - - case R_RX_ABS8U: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - RANGE (0, 255); - OP (0) = relocation; - break; - - case R_RX_ABS8UL: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - relocation >>= 2; - RANGE (0, 255); - OP (0) = relocation; - break; - - case R_RX_ABS8UW: - UNSAFE_FOR_PID; - RX_STACK_POP (relocation); - relocation >>= 1; - RANGE (0, 255); - OP (0) = relocation; - break; - - case R_RX_ABS8S: - UNSAFE_FOR_PID; - case R_RX_ABS8S_PCREL: - RX_STACK_POP (relocation); - RANGE (-128, 127); - OP (0) = relocation; - break; - - case R_RX_SYM: - if (r_symndx < symtab_hdr->sh_info) - RX_STACK_PUSH (sec->output_section->vma - + sec->output_offset - + sym->st_value - + rel->r_addend); - else - { - if (h != NULL - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak)) - RX_STACK_PUSH (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset - + rel->r_addend); - else - _bfd_error_handler (_("Warning: RX_SYM reloc with an unknown symbol")); - } - break; - - case R_RX_OPneg: - { - int32_t tmp; - - saw_subtract = TRUE; - RX_STACK_POP (tmp); - tmp = - tmp; - RX_STACK_PUSH (tmp); - } - break; - - case R_RX_OPadd: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 += tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPsub: - { - int32_t tmp1, tmp2; - - saw_subtract = TRUE; - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp2 -= tmp1; - RX_STACK_PUSH (tmp2); - } - break; - - case R_RX_OPmul: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 *= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPdiv: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 /= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPshla: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 <<= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPshra: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 >>= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPsctsize: - RX_STACK_PUSH (input_section->size); - break; - - case R_RX_OPscttop: - RX_STACK_PUSH (input_section->output_section->vma); - break; - - case R_RX_OPand: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 &= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPor: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 |= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPxor: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 ^= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPnot: - { - int32_t tmp; - - RX_STACK_POP (tmp); - tmp = ~ tmp; - RX_STACK_PUSH (tmp); - } - break; - - case R_RX_OPmod: - { - int32_t tmp1, tmp2; - - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 %= tmp2; - RX_STACK_PUSH (tmp1); - } - break; - - case R_RX_OPromtop: - RX_STACK_PUSH (get_romstart (&r, info, input_bfd, input_section, rel->r_offset)); - break; - - case R_RX_OPramtop: - RX_STACK_PUSH (get_ramstart (&r, info, input_bfd, input_section, rel->r_offset)); - break; - - default: - r = bfd_reloc_notsupported; - break; - } - - if (r != bfd_reloc_ok) - { - const char * msg = NULL; - - switch (r) - { - case bfd_reloc_overflow: - /* Catch the case of a missing function declaration - and emit a more helpful error message. */ - if (r_type == R_RX_DIR24S_PCREL) - msg = _("%B(%A): error: call to undefined function '%s'"); - else - 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_other: - msg = _("%B(%A): warning: unaligned access to symbol '%s' in the small data area"); - break; - - case bfd_reloc_outofrange: - msg = _("%B(%A): internal error: out of range error"); - break; - - case bfd_reloc_notsupported: - msg = _("%B(%A): internal error: unsupported relocation error"); - break; - - case bfd_reloc_dangerous: - msg = _("%B(%A): internal error: dangerous relocation"); - break; - - default: - msg = _("%B(%A): internal error: unknown error"); - break; - } - - if (msg) - _bfd_error_handler (msg, input_bfd, input_section, name); - - if (! r) - return FALSE; - } - } - - return TRUE; -} - -/* Relaxation Support. */ - -/* Progression of relocations from largest operand size to smallest - operand size. */ - -static int -next_smaller_reloc (int r) -{ - switch (r) - { - case R_RX_DIR32: return R_RX_DIR24S; - case R_RX_DIR24S: return R_RX_DIR16S; - case R_RX_DIR16S: return R_RX_DIR8S; - case R_RX_DIR8S: return R_RX_NONE; - - case R_RX_DIR16: return R_RX_DIR8; - case R_RX_DIR8: return R_RX_NONE; - - case R_RX_DIR16U: return R_RX_DIR8U; - case R_RX_DIR8U: return R_RX_NONE; - - case R_RX_DIR24S_PCREL: return R_RX_DIR16S_PCREL; - case R_RX_DIR16S_PCREL: return R_RX_DIR8S_PCREL; - case R_RX_DIR8S_PCREL: return R_RX_DIR3U_PCREL; - - case R_RX_DIR16UL: return R_RX_DIR8UL; - case R_RX_DIR8UL: return R_RX_NONE; - case R_RX_DIR16UW: return R_RX_DIR8UW; - case R_RX_DIR8UW: return R_RX_NONE; - - case R_RX_RH_32_OP: return R_RX_RH_24_OP; - case R_RX_RH_24_OP: return R_RX_RH_16_OP; - case R_RX_RH_16_OP: return R_RX_DIR8; - - case R_RX_ABS32: return R_RX_ABS24S; - case R_RX_ABS24S: return R_RX_ABS16S; - case R_RX_ABS16: return R_RX_ABS8; - case R_RX_ABS16U: return R_RX_ABS8U; - case R_RX_ABS16S: return R_RX_ABS8S; - case R_RX_ABS8: return R_RX_NONE; - case R_RX_ABS8U: return R_RX_NONE; - case R_RX_ABS8S: return R_RX_NONE; - case R_RX_ABS24S_PCREL: return R_RX_ABS16S_PCREL; - case R_RX_ABS16S_PCREL: return R_RX_ABS8S_PCREL; - case R_RX_ABS8S_PCREL: return R_RX_NONE; - case R_RX_ABS16UL: return R_RX_ABS8UL; - case R_RX_ABS16UW: return R_RX_ABS8UW; - case R_RX_ABS8UL: return R_RX_NONE; - case R_RX_ABS8UW: return R_RX_NONE; - } - return r; -}; - -/* Delete some bytes from a section while relaxing. */ - -static bfd_boolean -elf32_rx_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count, - Elf_Internal_Rela *alignment_rel, int force_snip) -{ - Elf_Internal_Shdr * symtab_hdr; - unsigned int sec_shndx; - bfd_byte * contents; - Elf_Internal_Rela * irel; - Elf_Internal_Rela * irelend; - Elf_Internal_Sym * isym; - Elf_Internal_Sym * isymend; - bfd_vma toaddr; - unsigned int symcount; - struct elf_link_hash_entry ** sym_hashes; - struct elf_link_hash_entry ** end_hashes; - - if (!alignment_rel) - force_snip = 1; - - 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 alignment boundary, if - ALIGNMENT_REL is non-NULL. */ - toaddr = sec->size; - if (alignment_rel) - toaddr = alignment_rel->r_offset; - - irel = elf_section_data (sec)->relocs; - irelend = irel + sec->reloc_count; - - /* Actually delete the bytes. */ - memmove (contents + addr, contents + addr + count, - (size_t) (toaddr - addr - count)); - - /* If we don't have an alignment marker to worry about, we can just - shrink the section. Otherwise, we have to fill in the newly - created gap with NOP insns (0x03). */ - if (force_snip) - sec->size -= count; - else - memset (contents + toaddr - count, 0x03, count); - - /* Adjust all the relocs. */ - for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) - { - /* Get the new reloc address. */ - if (irel->r_offset > addr - && (irel->r_offset < toaddr - || (force_snip && irel->r_offset == toaddr))) - irel->r_offset -= count; - - /* If we see an ALIGN marker at the end of the gap, we move it - to the beginning of the gap, since marking these gaps is what - they're for. */ - if (irel->r_offset == toaddr - && ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX - && irel->r_addend & RX_RELAXA_ALIGN) - irel->r_offset -= count; - } - - /* Adjust the local symbols defined in this section. */ - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - isym = (Elf_Internal_Sym *) symtab_hdr->contents; - isymend = isym + symtab_hdr->sh_info; - - for (; isym < isymend; isym++) - { - /* If the symbol is in the range of memory we just moved, we - have to adjust its value. */ - if (isym->st_shndx == sec_shndx - && isym->st_value > addr - && isym->st_value < toaddr) - isym->st_value -= count; - - /* If the symbol *spans* the bytes we just deleted (i.e. it's - *end* is in the moved bytes but it's *start* isn't), then we - must adjust its size. */ - if (isym->st_shndx == sec_shndx - && isym->st_value < addr - && isym->st_value + isym->st_size > addr - && isym->st_value + isym->st_size < toaddr) - isym->st_size -= 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) - { - /* As above, adjust the value if needed. */ - if (sym_hash->root.u.def.value > addr - && sym_hash->root.u.def.value < toaddr) - sym_hash->root.u.def.value -= count; - - /* As above, adjust the size if needed. */ - if (sym_hash->root.u.def.value < addr - && sym_hash->root.u.def.value + sym_hash->size > addr - && sym_hash->root.u.def.value + sym_hash->size < toaddr) - sym_hash->size -= count; - } - } - - return TRUE; -} - -/* Used to sort relocs by address. If relocs have the same address, - we maintain their relative order, except that R_RX_RH_RELAX - alignment relocs must be the first reloc for any given address. */ - -static void -reloc_bubblesort (Elf_Internal_Rela * r, int count) -{ - int i; - bfd_boolean again; - bfd_boolean swappit; - - /* This is almost a classic bubblesort. It's the slowest sort, but - we're taking advantage of the fact that the relocations are - mostly in order already (the assembler emits them that way) and - we need relocs with the same address to remain in the same - relative order. */ - again = TRUE; - while (again) - { - again = FALSE; - for (i = 0; i < count - 1; i ++) - { - if (r[i].r_offset > r[i + 1].r_offset) - swappit = TRUE; - else if (r[i].r_offset < r[i + 1].r_offset) - swappit = FALSE; - else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX - && (r[i + 1].r_addend & RX_RELAXA_ALIGN)) - swappit = TRUE; - else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX - && (r[i + 1].r_addend & RX_RELAXA_ELIGN) - && !(ELF32_R_TYPE (r[i].r_info) == R_RX_RH_RELAX - && (r[i].r_addend & RX_RELAXA_ALIGN))) - swappit = TRUE; - else - swappit = FALSE; - - if (swappit) - { - Elf_Internal_Rela tmp; - - tmp = r[i]; - r[i] = r[i + 1]; - r[i + 1] = tmp; - /* If we do move a reloc back, re-scan to see if it - needs to be moved even further back. This avoids - most of the O(n^2) behavior for our cases. */ - if (i > 0) - i -= 2; - again = TRUE; - } - } - } -} - - -#define OFFSET_FOR_RELOC(rel, lrel, scale) \ - rx_offset_for_reloc (abfd, rel + 1, symtab_hdr, shndx_buf, intsyms, \ - lrel, abfd, sec, link_info, scale) - -static bfd_vma -rx_offset_for_reloc (bfd * abfd, - Elf_Internal_Rela * rel, - Elf_Internal_Shdr * symtab_hdr, - Elf_External_Sym_Shndx * shndx_buf ATTRIBUTE_UNUSED, - Elf_Internal_Sym * intsyms, - Elf_Internal_Rela ** lrel, - bfd * input_bfd, - asection * input_section, - struct bfd_link_info * info, - int * scale) -{ - bfd_vma symval; - bfd_reloc_status_type r; - - *scale = 1; - - /* REL is the first of 1..N relocations. We compute the symbol - value for each relocation, then combine them if needed. LREL - gets a pointer to the last relocation used. */ - while (1) - { - int32_t tmp1, tmp2; - - /* Get the value of the symbol referred to by the reloc. */ - if (ELF32_R_SYM (rel->r_info) < symtab_hdr->sh_info) - { - /* A local symbol. */ - Elf_Internal_Sym *isym; - asection *ssec; - - isym = intsyms + ELF32_R_SYM (rel->r_info); - - if (isym->st_shndx == SHN_UNDEF) - ssec = bfd_und_section_ptr; - else if (isym->st_shndx == SHN_ABS) - ssec = bfd_abs_section_ptr; - else if (isym->st_shndx == SHN_COMMON) - ssec = bfd_com_section_ptr; - else - ssec = bfd_section_from_elf_index (abfd, - isym->st_shndx); - - /* Initial symbol value. */ - symval = isym->st_value; - - /* GAS may have made this symbol relative to a section, in - which case, we have to add the addend to find the - symbol. */ - if (ELF_ST_TYPE (isym->st_info) == STT_SECTION) - symval += rel->r_addend; - - if (ssec) - { - if ((ssec->flags & SEC_MERGE) - && ssec->sec_info_type == SEC_INFO_TYPE_MERGE) - symval = _bfd_merged_section_offset (abfd, & ssec, - elf_section_data (ssec)->sec_info, - symval); - } - - /* Now make the offset relative to where the linker is putting it. */ - if (ssec) - symval += - ssec->output_section->vma + ssec->output_offset; - - symval += rel->r_addend; - } - else - { - unsigned long indx; - struct elf_link_hash_entry * h; - - /* An external symbol. */ - indx = ELF32_R_SYM (rel->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. */ - if (lrel) - *lrel = rel; - return 0; - } - - symval = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - - symval += rel->r_addend; - } - - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_RX_SYM: - RX_STACK_PUSH (symval); - break; - - case R_RX_OPneg: - RX_STACK_POP (tmp1); - tmp1 = - tmp1; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPadd: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 += tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPsub: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp2 -= tmp1; - RX_STACK_PUSH (tmp2); - break; - - case R_RX_OPmul: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 *= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPdiv: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 /= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPshla: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 <<= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPshra: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 >>= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPsctsize: - RX_STACK_PUSH (input_section->size); - break; - - case R_RX_OPscttop: - RX_STACK_PUSH (input_section->output_section->vma); - break; - - case R_RX_OPand: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 &= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPor: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 |= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPxor: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 ^= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPnot: - RX_STACK_POP (tmp1); - tmp1 = ~ tmp1; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPmod: - RX_STACK_POP (tmp1); - RX_STACK_POP (tmp2); - tmp1 %= tmp2; - RX_STACK_PUSH (tmp1); - break; - - case R_RX_OPromtop: - RX_STACK_PUSH (get_romstart (&r, info, input_bfd, input_section, rel->r_offset)); - break; - - case R_RX_OPramtop: - RX_STACK_PUSH (get_ramstart (&r, info, input_bfd, input_section, rel->r_offset)); - break; - - case R_RX_DIR16UL: - case R_RX_DIR8UL: - case R_RX_ABS16UL: - case R_RX_ABS8UL: - if (rx_stack_top) - RX_STACK_POP (symval); - if (lrel) - *lrel = rel; - *scale = 4; - return symval; - - case R_RX_DIR16UW: - case R_RX_DIR8UW: - case R_RX_ABS16UW: - case R_RX_ABS8UW: - if (rx_stack_top) - RX_STACK_POP (symval); - if (lrel) - *lrel = rel; - *scale = 2; - return symval; - - default: - if (rx_stack_top) - RX_STACK_POP (symval); - if (lrel) - *lrel = rel; - return symval; - } - - rel ++; - } -} - -static void -move_reloc (Elf_Internal_Rela * irel, Elf_Internal_Rela * srel, int delta) -{ - bfd_vma old_offset = srel->r_offset; - - irel ++; - while (irel <= srel) - { - if (irel->r_offset == old_offset) - irel->r_offset += delta; - irel ++; - } -} - -/* Relax one section. */ - -static bfd_boolean -elf32_rx_relax_section (bfd * abfd, - asection * sec, - struct bfd_link_info * link_info, - bfd_boolean * again, - bfd_boolean allow_pcrel3) -{ - Elf_Internal_Shdr * symtab_hdr; - Elf_Internal_Shdr * shndx_hdr; - Elf_Internal_Rela * internal_relocs; - Elf_Internal_Rela * free_relocs = NULL; - Elf_Internal_Rela * irel; - Elf_Internal_Rela * srel; - Elf_Internal_Rela * irelend; - Elf_Internal_Rela * next_alignment; - Elf_Internal_Rela * prev_alignment; - bfd_byte * contents = NULL; - bfd_byte * free_contents = NULL; - Elf_Internal_Sym * intsyms = NULL; - Elf_Internal_Sym * free_intsyms = NULL; - Elf_External_Sym_Shndx * shndx_buf = NULL; - bfd_vma pc; - bfd_vma sec_start; - bfd_vma symval = 0; - int pcrel = 0; - int code = 0; - int section_alignment_glue; - /* how much to scale the relocation by - 1, 2, or 4. */ - int scale; - - /* Assume nothing changes. */ - *again = FALSE; - - /* We don't have to do anything for a relocatable link, if - this section does not have relocs, or if this is not a - code section. */ - if (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; - shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; - - sec_start = sec->output_section->vma + sec->output_offset; - - /* Get the section contents. */ - if (elf_section_data (sec)->this_hdr.contents != NULL) - contents = elf_section_data (sec)->this_hdr.contents; - /* Go get them off disk. */ - else - { - if (! bfd_malloc_and_get_section (abfd, sec, &contents)) - goto error_return; - elf_section_data (sec)->this_hdr.contents = contents; - } - - /* Read this BFD's symbols. */ - /* Get cached copy if it exists. */ - if (symtab_hdr->contents != NULL) - intsyms = (Elf_Internal_Sym *) symtab_hdr->contents; - else - { - intsyms = bfd_elf_get_elf_syms (abfd, symtab_hdr, symtab_hdr->sh_info, 0, NULL, NULL, NULL); - symtab_hdr->contents = (bfd_byte *) intsyms; - } - - if (shndx_hdr->sh_size != 0) - { - bfd_size_type amt; - - amt = symtab_hdr->sh_info; - amt *= sizeof (Elf_External_Sym_Shndx); - shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); - if (shndx_buf == NULL) - goto error_return; - if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0 - || bfd_bread (shndx_buf, amt, abfd) != amt) - goto error_return; - shndx_hdr->contents = (bfd_byte *) shndx_buf; - } - - /* Get a copy of the native relocations. */ - internal_relocs = (_bfd_elf_link_read_relocs - (abfd, sec, NULL, (Elf_Internal_Rela *) NULL, - link_info->keep_memory)); - if (internal_relocs == NULL) - goto error_return; - if (! link_info->keep_memory) - free_relocs = internal_relocs; - - /* The RL_ relocs must be just before the operand relocs they go - with, so we must sort them to guarantee this. We use bubblesort - instead of qsort so we can guarantee that relocs with the same - address remain in the same relative order. */ - reloc_bubblesort (internal_relocs, sec->reloc_count); - - /* Walk through them looking for relaxing opportunities. */ - irelend = internal_relocs + sec->reloc_count; - - /* This will either be NULL or a pointer to the next alignment - relocation. */ - next_alignment = internal_relocs; - /* This will be the previous alignment, although at first it points - to the first real relocation. */ - prev_alignment = internal_relocs; - - /* We calculate worst case shrinkage caused by alignment directives. - No fool-proof, but better than either ignoring the problem or - doing heavy duty analysis of all the alignment markers in all - input sections. */ - section_alignment_glue = 0; - for (irel = internal_relocs; irel < irelend; irel++) - if (ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX - && irel->r_addend & RX_RELAXA_ALIGN) - { - int this_glue = 1 << (irel->r_addend & RX_RELAXA_ANUM); - - if (section_alignment_glue < this_glue) - section_alignment_glue = this_glue; - } - /* Worst case is all 0..N alignments, in order, causing 2*N-1 byte - shrinkage. */ - section_alignment_glue *= 2; - - for (irel = internal_relocs; irel < irelend; irel++) - { - unsigned char *insn; - int nrelocs; - - /* The insns we care about are all marked with one of these. */ - if (ELF32_R_TYPE (irel->r_info) != R_RX_RH_RELAX) - continue; - - if (irel->r_addend & RX_RELAXA_ALIGN - || next_alignment == internal_relocs) - { - /* When we delete bytes, we need to maintain all the alignments - indicated. In addition, we need to be careful about relaxing - jumps across alignment boundaries - these displacements - *grow* when we delete bytes. For now, don't shrink - displacements across an alignment boundary, just in case. - Note that this only affects relocations to the same - section. */ - prev_alignment = next_alignment; - next_alignment += 2; - while (next_alignment < irelend - && (ELF32_R_TYPE (next_alignment->r_info) != R_RX_RH_RELAX - || !(next_alignment->r_addend & RX_RELAXA_ELIGN))) - next_alignment ++; - if (next_alignment >= irelend || next_alignment->r_offset == 0) - next_alignment = NULL; - } - - /* When we hit alignment markers, see if we've shrunk enough - before them to reduce the gap without violating the alignment - requirements. */ - if (irel->r_addend & RX_RELAXA_ALIGN) - { - /* At this point, the next relocation *should* be the ELIGN - end marker. */ - Elf_Internal_Rela *erel = irel + 1; - unsigned int alignment, nbytes; - - if (ELF32_R_TYPE (erel->r_info) != R_RX_RH_RELAX) - continue; - if (!(erel->r_addend & RX_RELAXA_ELIGN)) - continue; - - alignment = 1 << (irel->r_addend & RX_RELAXA_ANUM); - - if (erel->r_offset - irel->r_offset < alignment) - continue; - - nbytes = erel->r_offset - irel->r_offset; - nbytes /= alignment; - nbytes *= alignment; - - elf32_rx_relax_delete_bytes (abfd, sec, erel->r_offset-nbytes, nbytes, next_alignment, - erel->r_offset == sec->size); - *again = TRUE; - - continue; - } - - if (irel->r_addend & RX_RELAXA_ELIGN) - continue; - - insn = contents + irel->r_offset; - - nrelocs = irel->r_addend & RX_RELAXA_RNUM; - - /* At this point, we have an insn that is a candidate for linker - relaxation. There are NRELOCS relocs following that may be - relaxed, although each reloc may be made of more than one - reloc entry (such as gp-rel symbols). */ - - /* Get the value of the symbol referred to by the reloc. Just - in case this is the last reloc in the list, use the RL's - addend to choose between this reloc (no addend) or the next - (yes addend, which means at least one following reloc). */ - - /* srel points to the "current" reloction for this insn - - actually the last reloc for a given operand, which is the one - we need to update. We check the relaxations in the same - order that the relocations happen, so we'll just push it - along as we go. */ - srel = irel; - - pc = sec->output_section->vma + sec->output_offset - + srel->r_offset; - -#define GET_RELOC \ - symval = OFFSET_FOR_RELOC (srel, &srel, &scale); \ - pcrel = symval - pc + srel->r_addend; \ - nrelocs --; - -#define SNIPNR(offset, nbytes) \ - elf32_rx_relax_delete_bytes (abfd, sec, (insn - contents) + offset, nbytes, next_alignment, 0); -#define SNIP(offset, nbytes, newtype) \ - SNIPNR (offset, nbytes); \ - srel->r_info = ELF32_R_INFO (ELF32_R_SYM (srel->r_info), newtype) - - /* The order of these bit tests must match the order that the - relocs appear in. Since we sorted those by offset, we can - predict them. */ - - /* Note that the numbers in, say, DSP6 are the bit offsets of - the code fields that describe the operand. Bits number 0 for - the MSB of insn[0]. */ - - /* DSP* codes: - 0 00 [reg] - 1 01 dsp:8[reg] - 2 10 dsp:16[reg] - 3 11 reg */ - if (irel->r_addend & RX_RELAXA_DSP6) - { - GET_RELOC; - - code = insn[0] & 3; - if (code == 2 && symval/scale <= 255) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - insn[0] &= 0xfc; - insn[0] |= 0x01; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (3, 1, newrel); - *again = TRUE; - } - } - - else if (code == 1 && symval == 0) - { - insn[0] &= 0xfc; - SNIP (2, 1, R_RX_NONE); - *again = TRUE; - } - - /* Special case DSP:5 format: MOV.bwl dsp:5[Rsrc],Rdst. */ - else if (code == 1 && symval/scale <= 31 - /* Decodable bits. */ - && (insn[0] & 0xcc) == 0xcc - /* Width. */ - && (insn[0] & 0x30) != 0x30 - /* Register MSBs. */ - && (insn[1] & 0x88) == 0x00) - { - int newrel = 0; - - insn[0] = 0x88 | (insn[0] & 0x30); - /* The register fields are in the right place already. */ - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - switch ((insn[0] & 0x30) >> 4) - { - case 0: - newrel = R_RX_RH_ABS5p5B; - break; - case 1: - newrel = R_RX_RH_ABS5p5W; - break; - case 2: - newrel = R_RX_RH_ABS5p5L; - break; - } - - move_reloc (irel, srel, -2); - SNIP (2, 1, newrel); - } - - /* Special case DSP:5 format: MOVU.bw dsp:5[Rsrc],Rdst. */ - else if (code == 1 && symval/scale <= 31 - /* Decodable bits. */ - && (insn[0] & 0xf8) == 0x58 - /* Register MSBs. */ - && (insn[1] & 0x88) == 0x00) - { - int newrel = 0; - - insn[0] = 0xb0 | ((insn[0] & 0x04) << 1); - /* The register fields are in the right place already. */ - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - switch ((insn[0] & 0x08) >> 3) - { - case 0: - newrel = R_RX_RH_ABS5p5B; - break; - case 1: - newrel = R_RX_RH_ABS5p5W; - break; - } - - move_reloc (irel, srel, -2); - SNIP (2, 1, newrel); - } - } - - /* A DSP4 operand always follows a DSP6 operand, even if there's - no relocation for it. We have to read the code out of the - opcode to calculate the offset of the operand. */ - if (irel->r_addend & RX_RELAXA_DSP4) - { - int code6, offset = 0; - - GET_RELOC; - - code6 = insn[0] & 0x03; - switch (code6) - { - case 0: offset = 2; break; - case 1: offset = 3; break; - case 2: offset = 4; break; - case 3: offset = 2; break; - } - - code = (insn[0] & 0x0c) >> 2; - - if (code == 2 && symval / scale <= 255) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - - insn[0] &= 0xf3; - insn[0] |= 0x04; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (offset+1, 1, newrel); - *again = TRUE; - } - } - - else if (code == 1 && symval == 0) - { - insn[0] &= 0xf3; - SNIP (offset, 1, R_RX_NONE); - *again = TRUE; - } - /* Special case DSP:5 format: MOV.bwl Rsrc,dsp:5[Rdst] */ - else if (code == 1 && symval/scale <= 31 - /* Decodable bits. */ - && (insn[0] & 0xc3) == 0xc3 - /* Width. */ - && (insn[0] & 0x30) != 0x30 - /* Register MSBs. */ - && (insn[1] & 0x88) == 0x00) - { - int newrel = 0; - - insn[0] = 0x80 | (insn[0] & 0x30); - /* The register fields are in the right place already. */ - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - switch ((insn[0] & 0x30) >> 4) - { - case 0: - newrel = R_RX_RH_ABS5p5B; - break; - case 1: - newrel = R_RX_RH_ABS5p5W; - break; - case 2: - newrel = R_RX_RH_ABS5p5L; - break; - } - - move_reloc (irel, srel, -2); - SNIP (2, 1, newrel); - } - } - - /* These always occur alone, but the offset depends on whether - it's a MEMEX opcode (0x06) or not. */ - if (irel->r_addend & RX_RELAXA_DSP14) - { - int offset; - GET_RELOC; - - if (insn[0] == 0x06) - offset = 3; - else - offset = 4; - - code = insn[1] & 3; - - if (code == 2 && symval / scale <= 255) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - - insn[1] &= 0xfc; - insn[1] |= 0x01; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (offset, 1, newrel); - *again = TRUE; - } - } - else if (code == 1 && symval == 0) - { - insn[1] &= 0xfc; - SNIP (offset, 1, R_RX_NONE); - *again = TRUE; - } - } - - /* IMM* codes: - 0 00 imm:32 - 1 01 simm:8 - 2 10 simm:16 - 3 11 simm:24. */ - - /* These always occur alone. */ - if (irel->r_addend & RX_RELAXA_IMM6) - { - long ssymval; - - GET_RELOC; - - /* These relocations sign-extend, so we must do signed compares. */ - ssymval = (long) symval; - - code = insn[0] & 0x03; - - if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - - insn[0] &= 0xfc; - insn[0] |= 0x03; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (2, 1, newrel); - *again = TRUE; - } - } - - else if (code == 3 && ssymval <= 32767 && ssymval >= -32768) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - - insn[0] &= 0xfc; - insn[0] |= 0x02; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (2, 1, newrel); - *again = TRUE; - } - } - - /* Special case UIMM8 format: CMP #uimm8,Rdst. */ - else if (code == 2 && ssymval <= 255 && ssymval >= 16 - /* Decodable bits. */ - && (insn[0] & 0xfc) == 0x74 - /* Decodable bits. */ - && ((insn[1] & 0xf0) == 0x00)) - { - int newrel; - - insn[0] = 0x75; - insn[1] = 0x50 | (insn[1] & 0x0f); - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - if (STACK_REL_P (ELF32_R_TYPE (srel->r_info))) - newrel = R_RX_ABS8U; - else - newrel = R_RX_DIR8U; - - SNIP (2, 1, newrel); - *again = TRUE; - } - - else if (code == 2 && ssymval <= 127 && ssymval >= -128) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - - insn[0] &= 0xfc; - insn[0] |= 0x01; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (2, 1, newrel); - *again = TRUE; - } - } - - /* Special case UIMM4 format: CMP, MUL, AND, OR. */ - else if (code == 1 && ssymval <= 15 && ssymval >= 0 - /* Decodable bits and immediate type. */ - && insn[0] == 0x75 - /* Decodable bits. */ - && (insn[1] & 0xc0) == 0x00) - { - static const int newop[4] = { 1, 3, 4, 5 }; - - insn[0] = 0x60 | newop[insn[1] >> 4]; - /* The register number doesn't move. */ - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - move_reloc (irel, srel, -1); - - SNIP (2, 1, R_RX_RH_UIMM4p8); - *again = TRUE; - } - - /* Special case UIMM4 format: ADD -> ADD/SUB. */ - else if (code == 1 && ssymval <= 15 && ssymval >= -15 - /* Decodable bits and immediate type. */ - && insn[0] == 0x71 - /* Same register for source and destination. */ - && ((insn[1] >> 4) == (insn[1] & 0x0f))) - { - int newrel; - - /* Note that we can't turn "add $0,Rs" into a NOP - because the flags need to be set right. */ - - if (ssymval < 0) - { - insn[0] = 0x60; /* Subtract. */ - newrel = R_RX_RH_UNEG4p8; - } - else - { - insn[0] = 0x62; /* Add. */ - newrel = R_RX_RH_UIMM4p8; - } - - /* The register number is in the right place. */ - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - move_reloc (irel, srel, -1); - - SNIP (2, 1, newrel); - *again = TRUE; - } - } - - /* These are either matched with a DSP6 (2-byte base) or an id24 - (3-byte base). */ - if (irel->r_addend & RX_RELAXA_IMM12) - { - int dspcode, offset = 0; - long ssymval; - - GET_RELOC; - - if ((insn[0] & 0xfc) == 0xfc) - dspcode = 1; /* Just something with one byte operand. */ - else - dspcode = insn[0] & 3; - switch (dspcode) - { - case 0: offset = 2; break; - case 1: offset = 3; break; - case 2: offset = 4; break; - case 3: offset = 2; break; - } - - /* These relocations sign-extend, so we must do signed compares. */ - ssymval = (long) symval; - - code = (insn[1] >> 2) & 3; - if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - - insn[1] &= 0xf3; - insn[1] |= 0x0c; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (offset, 1, newrel); - *again = TRUE; - } - } - - else if (code == 3 && ssymval <= 32767 && ssymval >= -32768) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - - insn[1] &= 0xf3; - insn[1] |= 0x08; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE (srel->r_info)) - { - SNIP (offset, 1, newrel); - *again = TRUE; - } - } - - /* Special case UIMM8 format: MOV #uimm8,Rdst. */ - else if (code == 2 && ssymval <= 255 && ssymval >= 16 - /* Decodable bits. */ - && insn[0] == 0xfb - /* Decodable bits. */ - && ((insn[1] & 0x03) == 0x02)) - { - int newrel; - - insn[0] = 0x75; - insn[1] = 0x40 | (insn[1] >> 4); - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - if (STACK_REL_P (ELF32_R_TYPE (srel->r_info))) - newrel = R_RX_ABS8U; - else - newrel = R_RX_DIR8U; - - SNIP (2, 1, newrel); - *again = TRUE; - } - - else if (code == 2 && ssymval <= 127 && ssymval >= -128) - { - unsigned int newrel = ELF32_R_TYPE(srel->r_info); - - insn[1] &= 0xf3; - insn[1] |= 0x04; - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - if (newrel != ELF32_R_TYPE(srel->r_info)) - { - SNIP (offset, 1, newrel); - *again = TRUE; - } - } - - /* Special case UIMM4 format: MOV #uimm4,Rdst. */ - else if (code == 1 && ssymval <= 15 && ssymval >= 0 - /* Decodable bits. */ - && insn[0] == 0xfb - /* Decodable bits. */ - && ((insn[1] & 0x03) == 0x02)) - { - insn[0] = 0x66; - insn[1] = insn[1] >> 4; - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - - move_reloc (irel, srel, -1); - - SNIP (2, 1, R_RX_RH_UIMM4p8); - *again = TRUE; - } - } - - if (irel->r_addend & RX_RELAXA_BRA) - { - unsigned int newrel = ELF32_R_TYPE (srel->r_info); - int max_pcrel3 = 4; - int alignment_glue = 0; - - GET_RELOC; - - /* Branches over alignment chunks are problematic, as - deleting bytes here makes the branch *further* away. We - can be agressive with branches within this alignment - block, but not branches outside it. */ - if ((prev_alignment == NULL - || symval < (bfd_vma)(sec_start + prev_alignment->r_offset)) - && (next_alignment == NULL - || symval > (bfd_vma)(sec_start + next_alignment->r_offset))) - alignment_glue = section_alignment_glue; - - if (ELF32_R_TYPE(srel[1].r_info) == R_RX_RH_RELAX - && srel[1].r_addend & RX_RELAXA_BRA - && srel[1].r_offset < irel->r_offset + pcrel) - max_pcrel3 ++; - - newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); - - /* The values we compare PCREL with are not what you'd - expect; they're off by a little to compensate for (1) - where the reloc is relative to the insn, and (2) how much - the insn is going to change when we relax it. */ - - /* These we have to decode. */ - switch (insn[0]) - { - case 0x04: /* BRA pcdsp:24 */ - if (-32768 + alignment_glue <= pcrel - && pcrel <= 32765 - alignment_glue) - { - insn[0] = 0x38; - SNIP (3, 1, newrel); - *again = TRUE; - } - break; - - case 0x38: /* BRA pcdsp:16 */ - if (-128 + alignment_glue <= pcrel - && pcrel <= 127 - alignment_glue) - { - insn[0] = 0x2e; - SNIP (2, 1, newrel); - *again = TRUE; - } - break; - - case 0x2e: /* BRA pcdsp:8 */ - /* Note that there's a risk here of shortening things so - much that we no longer fit this reloc; it *should* - only happen when you branch across a branch, and that - branch also devolves into BRA.S. "Real" code should - be OK. */ - if (max_pcrel3 + alignment_glue <= pcrel - && pcrel <= 10 - alignment_glue - && allow_pcrel3) - { - insn[0] = 0x08; - SNIP (1, 1, newrel); - move_reloc (irel, srel, -1); - *again = TRUE; - } - break; - - case 0x05: /* BSR pcdsp:24 */ - if (-32768 + alignment_glue <= pcrel - && pcrel <= 32765 - alignment_glue) - { - insn[0] = 0x39; - SNIP (1, 1, newrel); - *again = TRUE; - } - break; - - case 0x3a: /* BEQ.W pcdsp:16 */ - case 0x3b: /* BNE.W pcdsp:16 */ - if (-128 + alignment_glue <= pcrel - && pcrel <= 127 - alignment_glue) - { - insn[0] = 0x20 | (insn[0] & 1); - SNIP (1, 1, newrel); - *again = TRUE; - } - break; - - case 0x20: /* BEQ.B pcdsp:8 */ - case 0x21: /* BNE.B pcdsp:8 */ - if (max_pcrel3 + alignment_glue <= pcrel - && pcrel - alignment_glue <= 10 - && allow_pcrel3) - { - insn[0] = 0x10 | ((insn[0] & 1) << 3); - SNIP (1, 1, newrel); - move_reloc (irel, srel, -1); - *again = TRUE; - } - break; - - case 0x16: /* synthetic BNE dsp24 */ - case 0x1e: /* synthetic BEQ dsp24 */ - if (-32767 + alignment_glue <= pcrel - && pcrel <= 32766 - alignment_glue - && insn[1] == 0x04) - { - if (insn[0] == 0x16) - insn[0] = 0x3b; - else - insn[0] = 0x3a; - /* We snip out the bytes at the end else the reloc - will get moved too, and too much. */ - SNIP (3, 2, newrel); - move_reloc (irel, srel, -1); - *again = TRUE; - } - break; - } - - /* Special case - synthetic conditional branches, pcrel24. - Note that EQ and NE have been handled above. */ - if ((insn[0] & 0xf0) == 0x20 - && insn[1] == 0x06 - && insn[2] == 0x04 - && srel->r_offset != irel->r_offset + 1 - && -32767 + alignment_glue <= pcrel - && pcrel <= 32766 - alignment_glue) - { - insn[1] = 0x05; - insn[2] = 0x38; - SNIP (5, 1, newrel); - *again = TRUE; - } - - /* Special case - synthetic conditional branches, pcrel16 */ - if ((insn[0] & 0xf0) == 0x20 - && insn[1] == 0x05 - && insn[2] == 0x38 - && srel->r_offset != irel->r_offset + 1 - && -127 + alignment_glue <= pcrel - && pcrel <= 126 - alignment_glue) - { - int cond = (insn[0] & 0x0f) ^ 0x01; - - insn[0] = 0x20 | cond; - /* By moving the reloc first, we avoid having - delete_bytes move it also. */ - move_reloc (irel, srel, -2); - SNIP (2, 3, newrel); - *again = TRUE; - } - } - - BFD_ASSERT (nrelocs == 0); - - /* Special case - check MOV.bwl #IMM, dsp[reg] and see if we can - use MOV.bwl #uimm:8, dsp:5[r7] format. This is tricky - because it may have one or two relocations. */ - if ((insn[0] & 0xfc) == 0xf8 - && (insn[1] & 0x80) == 0x00 - && (insn[0] & 0x03) != 0x03) - { - int dcode, icode, reg, ioff, dscale, ilen; - bfd_vma disp_val = 0; - long imm_val = 0; - Elf_Internal_Rela * disp_rel = 0; - Elf_Internal_Rela * imm_rel = 0; - - /* Reset this. */ - srel = irel; - - dcode = insn[0] & 0x03; - icode = (insn[1] >> 2) & 0x03; - reg = (insn[1] >> 4) & 0x0f; - - ioff = dcode == 1 ? 3 : dcode == 2 ? 4 : 2; - - /* Figure out what the dispacement is. */ - if (dcode == 1 || dcode == 2) - { - /* There's a displacement. See if there's a reloc for it. */ - if (srel[1].r_offset == irel->r_offset + 2) - { - GET_RELOC; - disp_val = symval; - disp_rel = srel; - } - else - { - if (dcode == 1) - disp_val = insn[2]; - else - { -#if RX_OPCODE_BIG_ENDIAN - disp_val = insn[2] * 256 + insn[3]; -#else - disp_val = insn[2] + insn[3] * 256; -#endif - } - switch (insn[1] & 3) - { - case 1: - disp_val *= 2; - scale = 2; - break; - case 2: - disp_val *= 4; - scale = 4; - break; - } - } - } - - dscale = scale; - - /* Figure out what the immediate is. */ - if (srel[1].r_offset == irel->r_offset + ioff) - { - GET_RELOC; - imm_val = (long) symval; - imm_rel = srel; - } - else - { - unsigned char * ip = insn + ioff; - - switch (icode) - { - case 1: - /* For byte writes, we don't sign extend. Makes the math easier later. */ - if (scale == 1) - imm_val = ip[0]; - else - imm_val = (char) ip[0]; - break; - case 2: -#if RX_OPCODE_BIG_ENDIAN - imm_val = ((char) ip[0] << 8) | ip[1]; -#else - imm_val = ((char) ip[1] << 8) | ip[0]; -#endif - break; - case 3: -#if RX_OPCODE_BIG_ENDIAN - imm_val = ((char) ip[0] << 16) | (ip[1] << 8) | ip[2]; -#else - imm_val = ((char) ip[2] << 16) | (ip[1] << 8) | ip[0]; -#endif - break; - case 0: -#if RX_OPCODE_BIG_ENDIAN - imm_val = (ip[0] << 24) | (ip[1] << 16) | (ip[2] << 8) | ip[3]; -#else - imm_val = (ip[3] << 24) | (ip[2] << 16) | (ip[1] << 8) | ip[0]; -#endif - break; - } - } - - ilen = 2; - - switch (dcode) - { - case 1: - ilen += 1; - break; - case 2: - ilen += 2; - break; - } - - switch (icode) - { - case 1: - ilen += 1; - break; - case 2: - ilen += 2; - break; - case 3: - ilen += 3; - break; - case 4: - ilen += 4; - break; - } - - /* The shortcut happens when the immediate is 0..255, - register r0 to r7, and displacement (scaled) 0..31. */ - - if (0 <= imm_val && imm_val <= 255 - && 0 <= reg && reg <= 7 - && disp_val / dscale <= 31) - { - insn[0] = 0x3c | (insn[1] & 0x03); - insn[1] = (((disp_val / dscale) << 3) & 0x80) | (reg << 4) | ((disp_val/dscale) & 0x0f); - insn[2] = imm_val; - - if (disp_rel) - { - int newrel = R_RX_NONE; - - switch (dscale) - { - case 1: - newrel = R_RX_RH_ABS5p8B; - break; - case 2: - newrel = R_RX_RH_ABS5p8W; - break; - case 4: - newrel = R_RX_RH_ABS5p8L; - break; - } - disp_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (disp_rel->r_info), newrel); - move_reloc (irel, disp_rel, -1); - } - if (imm_rel) - { - imm_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (imm_rel->r_info), R_RX_DIR8U); - move_reloc (disp_rel ? disp_rel : irel, - imm_rel, - irel->r_offset - imm_rel->r_offset + 2); - } - - SNIPNR (3, ilen - 3); - *again = TRUE; - - /* We can't relax this new opcode. */ - irel->r_addend = 0; - } - } - } - - /* We can't reliably relax branches to DIR3U_PCREL unless we know - whatever they're branching over won't shrink any more. If we're - basically done here, do one more pass just for branches - but - don't request a pass after that one! */ - if (!*again && !allow_pcrel3) - { - bfd_boolean ignored; - - elf32_rx_relax_section (abfd, sec, link_info, &ignored, TRUE); - } - - return TRUE; - - error_return: - if (free_relocs != NULL) - free (free_relocs); - - if (free_contents != NULL) - free (free_contents); - - if (shndx_buf != NULL) - { - shndx_hdr->contents = NULL; - free (shndx_buf); - } - - if (free_intsyms != NULL) - free (free_intsyms); - - return FALSE; -} - -static bfd_boolean -elf32_rx_relax_section_wrapper (bfd * abfd, - asection * sec, - struct bfd_link_info * link_info, - bfd_boolean * again) -{ - return elf32_rx_relax_section (abfd, sec, link_info, again, FALSE); -} - -/* Function to set the ELF flag bits. */ - -static bfd_boolean -rx_elf_set_private_flags (bfd * abfd, flagword flags) -{ - elf_elfheader (abfd)->e_flags = flags; - elf_flags_init (abfd) = TRUE; - return TRUE; -} - -static bfd_boolean no_warn_mismatch = FALSE; -static bfd_boolean ignore_lma = TRUE; - -void bfd_elf32_rx_set_target_flags (bfd_boolean, bfd_boolean); - -void -bfd_elf32_rx_set_target_flags (bfd_boolean user_no_warn_mismatch, - bfd_boolean user_ignore_lma) -{ - no_warn_mismatch = user_no_warn_mismatch; - ignore_lma = user_ignore_lma; -} - -/* Converts FLAGS into a descriptive string. - Returns a static pointer. */ - -static const char * -describe_flags (flagword flags) -{ - static char buf [128]; - - buf[0] = 0; - - if (flags & E_FLAG_RX_64BIT_DOUBLES) - strcat (buf, "64-bit doubles"); - else - strcat (buf, "32-bit doubles"); - - if (flags & E_FLAG_RX_DSP) - strcat (buf, ", dsp"); - else - strcat (buf, ", no dsp"); - - if (flags & E_FLAG_RX_PID) - strcat (buf, ", pid"); - else - strcat (buf, ", no pid"); - - if (flags & E_FLAG_RX_ABI) - strcat (buf, ", RX ABI"); - else - strcat (buf, ", GCC ABI"); - - return buf; -} - -/* Merge backend specific data from an object file to the output - object file when linking. */ - -static bfd_boolean -rx_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd) -{ - flagword old_flags; - flagword new_flags; - bfd_boolean error = FALSE; - - new_flags = elf_elfheader (ibfd)->e_flags; - old_flags = elf_elfheader (obfd)->e_flags; - - if (!elf_flags_init (obfd)) - { - /* First call, no flags set. */ - elf_flags_init (obfd) = TRUE; - elf_elfheader (obfd)->e_flags = new_flags; - } - else if (old_flags != new_flags) - { - flagword known_flags; - - known_flags = E_FLAG_RX_ABI | E_FLAG_RX_64BIT_DOUBLES - | E_FLAG_RX_DSP | E_FLAG_RX_PID; - - if ((old_flags ^ new_flags) & known_flags) - { - /* Only complain if flag bits we care about do not match. - Other bits may be set, since older binaries did use some - deprecated flags. */ - if (no_warn_mismatch) - { - elf_elfheader (obfd)->e_flags = (new_flags | old_flags) & known_flags; - } - else - { - _bfd_error_handler ("There is a conflict merging the ELF header flags from %s", - bfd_get_filename (ibfd)); - _bfd_error_handler (" the input file's flags: %s", - describe_flags (new_flags)); - _bfd_error_handler (" the output file's flags: %s", - describe_flags (old_flags)); - error = TRUE; - } - } - else - elf_elfheader (obfd)->e_flags = new_flags & known_flags; - } - - if (error) - bfd_set_error (bfd_error_bad_value); - - return !error; -} - -static bfd_boolean -rx_elf_print_private_bfd_data (bfd * abfd, void * ptr) -{ - FILE * file = (FILE *) ptr; - flagword flags; - - BFD_ASSERT (abfd != NULL && ptr != NULL); - - /* Print normal ELF private data. */ - _bfd_elf_print_private_bfd_data (abfd, ptr); - - flags = elf_elfheader (abfd)->e_flags; - fprintf (file, _("private flags = 0x%lx:"), (long) flags); - - fprintf (file, "%s", describe_flags (flags)); - return TRUE; -} - -/* Return the MACH for an e_flags value. */ - -static int -elf32_rx_machine (bfd * abfd ATTRIBUTE_UNUSED) -{ -#if 0 /* FIXME: EF_RX_CPU_MASK collides with E_FLAG_RX_... - Need to sort out how these flag bits are used. - For now we assume that the flags are OK. */ - if ((elf_elfheader (abfd)->e_flags & EF_RX_CPU_MASK) == EF_RX_CPU_RX) -#endif - return bfd_mach_rx; - - return 0; -} - -static bfd_boolean -rx_elf_object_p (bfd * abfd) -{ - int i; - unsigned int u; - Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr; - int nphdrs = elf_elfheader (abfd)->e_phnum; - sec_ptr bsec; - static int saw_be = FALSE; - - /* We never want to automatically choose the non-swapping big-endian - target. The user can only get that explicitly, such as with -I - and objcopy. */ - if (abfd->xvec == &bfd_elf32_rx_be_ns_vec - && abfd->target_defaulted) - return FALSE; - - /* BFD->target_defaulted is not set to TRUE when a target is chosen - as a fallback, so we check for "scanning" to know when to stop - using the non-swapping target. */ - if (abfd->xvec == &bfd_elf32_rx_be_ns_vec - && saw_be) - return FALSE; - if (abfd->xvec == &bfd_elf32_rx_be_vec) - saw_be = TRUE; - - bfd_default_set_arch_mach (abfd, bfd_arch_rx, - elf32_rx_machine (abfd)); - - /* For each PHDR in the object, we must find some section that - corresponds (based on matching file offsets) and use its VMA - information to reconstruct the p_vaddr field we clobbered when we - wrote it out. */ - for (i=0; i<nphdrs; i++) - { - for (u=0; u<elf_tdata(abfd)->num_elf_sections; u++) - { - Elf_Internal_Shdr *sec = elf_tdata(abfd)->elf_sect_ptr[u]; - - if (phdr[i].p_filesz - && phdr[i].p_offset <= (bfd_vma) sec->sh_offset - && (bfd_vma)sec->sh_offset <= phdr[i].p_offset + (phdr[i].p_filesz - 1)) - { - /* Found one! The difference between the two addresses, - plus the difference between the two file offsets, is - enough information to reconstruct the lma. */ - - /* Example where they aren't: - PHDR[1] = lma fffc0100 offset 00002010 size 00000100 - SEC[6] = vma 00000050 offset 00002050 size 00000040 - - The correct LMA for the section is fffc0140 + (2050-2010). - */ - - phdr[i].p_vaddr = sec->sh_addr + (sec->sh_offset - phdr[i].p_offset); - break; - } - } - - /* We must update the bfd sections as well, so we don't stop - with one match. */ - bsec = abfd->sections; - while (bsec) - { - if (phdr[i].p_filesz - && phdr[i].p_vaddr <= bsec->vma - && bsec->vma <= phdr[i].p_vaddr + (phdr[i].p_filesz - 1)) - { - bsec->lma = phdr[i].p_paddr + (bsec->vma - phdr[i].p_vaddr); - } - bsec = bsec->next; - } - } - - return TRUE; -} - - -#ifdef DEBUG -void -rx_dump_symtab (bfd * abfd, void * internal_syms, void * external_syms) -{ - size_t locsymcount; - Elf_Internal_Sym * isymbuf; - Elf_Internal_Sym * isymend; - Elf_Internal_Sym * isym; - Elf_Internal_Shdr * symtab_hdr; - bfd_boolean free_internal = FALSE, free_external = FALSE; - char * st_info_str; - char * st_info_stb_str; - char * st_other_str; - char * st_shndx_str; - - if (! internal_syms) - { - internal_syms = bfd_malloc (1000); - free_internal = 1; - } - if (! external_syms) - { - external_syms = bfd_malloc (1000); - free_external = 1; - } - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - locsymcount = symtab_hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; - if (free_internal) - isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, - symtab_hdr->sh_info, 0, - internal_syms, external_syms, NULL); - else - isymbuf = internal_syms; - isymend = isymbuf + locsymcount; - - for (isym = isymbuf ; isym < isymend ; isym++) - { - switch (ELF_ST_TYPE (isym->st_info)) - { - case STT_FUNC: st_info_str = "STT_FUNC"; - case STT_SECTION: st_info_str = "STT_SECTION"; - case STT_FILE: st_info_str = "STT_FILE"; - case STT_OBJECT: st_info_str = "STT_OBJECT"; - case STT_TLS: st_info_str = "STT_TLS"; - default: st_info_str = ""; - } - switch (ELF_ST_BIND (isym->st_info)) - { - case STB_LOCAL: st_info_stb_str = "STB_LOCAL"; - case STB_GLOBAL: st_info_stb_str = "STB_GLOBAL"; - default: st_info_stb_str = ""; - } - switch (ELF_ST_VISIBILITY (isym->st_other)) - { - case STV_DEFAULT: st_other_str = "STV_DEFAULT"; - case STV_INTERNAL: st_other_str = "STV_INTERNAL"; - case STV_PROTECTED: st_other_str = "STV_PROTECTED"; - default: st_other_str = ""; - } - switch (isym->st_shndx) - { - case SHN_ABS: st_shndx_str = "SHN_ABS"; - case SHN_COMMON: st_shndx_str = "SHN_COMMON"; - case SHN_UNDEF: st_shndx_str = "SHN_UNDEF"; - default: st_shndx_str = ""; - } - - printf ("isym = %p st_value = %lx st_size = %lx st_name = (%lu) %s " - "st_info = (%d) %s %s st_other = (%d) %s st_shndx = (%d) %s\n", - isym, - (unsigned long) isym->st_value, - (unsigned long) isym->st_size, - isym->st_name, - bfd_elf_string_from_elf_section (abfd, symtab_hdr->sh_link, - isym->st_name), - isym->st_info, st_info_str, st_info_stb_str, - isym->st_other, st_other_str, - isym->st_shndx, st_shndx_str); - } - if (free_internal) - free (internal_syms); - if (free_external) - free (external_syms); -} - -char * -rx_get_reloc (long reloc) -{ - if (0 <= reloc && reloc < R_RX_max) - return rx_elf_howto_table[reloc].name; - return ""; -} -#endif /* DEBUG */ - - -/* We must take care to keep the on-disk copy of any code sections - that are fully linked swapped if the target is big endian, to match - the Renesas tools. */ - -/* The rule is: big endian object that are final-link executables, - have code sections stored with 32-bit words swapped relative to - what you'd get by default. */ - -static bfd_boolean -rx_get_section_contents (bfd * abfd, - sec_ptr section, - void * location, - file_ptr offset, - bfd_size_type count) -{ - int exec = (abfd->flags & EXEC_P) ? 1 : 0; - int s_code = (section->flags & SEC_CODE) ? 1 : 0; - bfd_boolean rv; - -#ifdef DJDEBUG - fprintf (stderr, "dj: get %ld %ld from %s %s e%d sc%d %08lx:%08lx\n", - (long) offset, (long) count, section->name, - bfd_big_endian(abfd) ? "be" : "le", - exec, s_code, (long unsigned) section->filepos, - (long unsigned) offset); -#endif - - if (exec && s_code && bfd_big_endian (abfd)) - { - char * cloc = (char *) location; - bfd_size_type cnt, end_cnt; - - rv = TRUE; - - /* Fetch and swap unaligned bytes at the beginning. */ - if (offset % 4) - { - char buf[4]; - - rv = _bfd_generic_get_section_contents (abfd, section, buf, - (offset & -4), 4); - if (!rv) - return FALSE; - - bfd_putb32 (bfd_getl32 (buf), buf); - - cnt = 4 - (offset % 4); - if (cnt > count) - cnt = count; - - memcpy (location, buf + (offset % 4), cnt); - - count -= cnt; - offset += cnt; - cloc += count; - } - - end_cnt = count % 4; - - /* Fetch and swap the middle bytes. */ - if (count >= 4) - { - rv = _bfd_generic_get_section_contents (abfd, section, cloc, offset, - count - end_cnt); - if (!rv) - return FALSE; - - for (cnt = count; cnt >= 4; cnt -= 4, cloc += 4) - bfd_putb32 (bfd_getl32 (cloc), cloc); - } - - /* Fetch and swap the end bytes. */ - if (end_cnt > 0) - { - char buf[4]; - - /* Fetch the end bytes. */ - rv = _bfd_generic_get_section_contents (abfd, section, buf, - offset + count - end_cnt, 4); - if (!rv) - return FALSE; - - bfd_putb32 (bfd_getl32 (buf), buf); - memcpy (cloc, buf, end_cnt); - } - } - else - rv = _bfd_generic_get_section_contents (abfd, section, location, offset, count); - - return rv; -} - -#ifdef DJDEBUG -static bfd_boolean -rx2_set_section_contents (bfd * abfd, - sec_ptr section, - const void * location, - file_ptr offset, - bfd_size_type count) -{ - bfd_size_type i; - - fprintf (stderr, " set sec %s %08x loc %p offset %#x count %#x\n", - section->name, (unsigned) section->vma, location, (int) offset, (int) count); - for (i = 0; i < count; i++) - { - if (i % 16 == 0 && i > 0) - fprintf (stderr, "\n"); - - if (i % 16 && i % 4 == 0) - fprintf (stderr, " "); - - if (i % 16 == 0) - fprintf (stderr, " %08x:", (int) (section->vma + offset + i)); - - fprintf (stderr, " %02x", ((unsigned char *) location)[i]); - } - fprintf (stderr, "\n"); - - return _bfd_elf_set_section_contents (abfd, section, location, offset, count); -} -#define _bfd_elf_set_section_contents rx2_set_section_contents -#endif - -static bfd_boolean -rx_set_section_contents (bfd * abfd, - sec_ptr section, - const void * location, - file_ptr offset, - bfd_size_type count) -{ - bfd_boolean exec = (abfd->flags & EXEC_P) ? TRUE : FALSE; - bfd_boolean s_code = (section->flags & SEC_CODE) ? TRUE : FALSE; - bfd_boolean rv; - char * swapped_data = NULL; - bfd_size_type i; - bfd_vma caddr = section->vma + offset; - file_ptr faddr = 0; - bfd_size_type scount; - -#ifdef DJDEBUG - bfd_size_type i; - - fprintf (stderr, "\ndj: set %ld %ld to %s %s e%d sc%d\n", - (long) offset, (long) count, section->name, - bfd_big_endian (abfd) ? "be" : "le", - exec, s_code); - - for (i = 0; i < count; i++) - { - int a = section->vma + offset + i; - - if (a % 16 == 0 && a > 0) - fprintf (stderr, "\n"); - - if (a % 16 && a % 4 == 0) - fprintf (stderr, " "); - - if (a % 16 == 0 || i == 0) - fprintf (stderr, " %08x:", (int) (section->vma + offset + i)); - - fprintf (stderr, " %02x", ((unsigned char *) location)[i]); - } - - fprintf (stderr, "\n"); -#endif - - if (! exec || ! s_code || ! bfd_big_endian (abfd)) - return _bfd_elf_set_section_contents (abfd, section, location, offset, count); - - while (count > 0 && caddr > 0 && caddr % 4) - { - switch (caddr % 4) - { - case 0: faddr = offset + 3; break; - case 1: faddr = offset + 1; break; - case 2: faddr = offset - 1; break; - case 3: faddr = offset - 3; break; - } - - rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1); - if (! rv) - return rv; - - location ++; - offset ++; - count --; - caddr ++; - } - - scount = (int)(count / 4) * 4; - if (scount > 0) - { - char * cloc = (char *) location; - - swapped_data = (char *) bfd_alloc (abfd, count); - - for (i = 0; i < count; i += 4) - { - bfd_vma v = bfd_getl32 (cloc + i); - bfd_putb32 (v, swapped_data + i); - } - - rv = _bfd_elf_set_section_contents (abfd, section, swapped_data, offset, scount); - - if (!rv) - return rv; - } - - count -= scount; - location += scount; - offset += scount; - - if (count > 0) - { - caddr = section->vma + offset; - while (count > 0) - { - switch (caddr % 4) - { - case 0: faddr = offset + 3; break; - case 1: faddr = offset + 1; break; - case 2: faddr = offset - 1; break; - case 3: faddr = offset - 3; break; - } - rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1); - if (! rv) - return rv; - - location ++; - offset ++; - count --; - caddr ++; - } - } - - return TRUE; -} - -static bfd_boolean -rx_final_link (bfd * abfd, struct bfd_link_info * info) -{ - asection * o; - - for (o = abfd->sections; o != NULL; o = o->next) - { -#ifdef DJDEBUG - fprintf (stderr, "sec %s fl %x vma %lx lma %lx size %lx raw %lx\n", - o->name, o->flags, o->vma, o->lma, o->size, o->rawsize); -#endif - if (o->flags & SEC_CODE - && bfd_big_endian (abfd) - && o->size % 4) - { -#ifdef DJDEBUG - fprintf (stderr, "adjusting...\n"); -#endif - o->size += 4 - (o->size % 4); - } - } - - return bfd_elf_final_link (abfd, info); -} - -static bfd_boolean -elf32_rx_modify_program_headers (bfd * abfd ATTRIBUTE_UNUSED, - struct bfd_link_info * info ATTRIBUTE_UNUSED) -{ - const struct elf_backend_data * bed; - struct elf_obj_tdata * tdata; - Elf_Internal_Phdr * phdr; - unsigned int count; - unsigned int i; - - bed = get_elf_backend_data (abfd); - tdata = elf_tdata (abfd); - phdr = tdata->phdr; - count = elf_program_header_size (abfd) / bed->s->sizeof_phdr; - - if (ignore_lma) - for (i = count; i-- != 0;) - if (phdr[i].p_type == PT_LOAD) - { - /* The Renesas tools expect p_paddr to be zero. However, - there is no other way to store the writable data in ROM for - startup initialization. So, we let the linker *think* - we're using paddr and vaddr the "usual" way, but at the - last minute we move the paddr into the vaddr (which is what - the simulator uses) and zero out paddr. Note that this - does not affect the section headers, just the program - headers. We hope. */ - phdr[i].p_vaddr = phdr[i].p_paddr; -#if 0 /* If we zero out p_paddr, then the LMA in the section table - becomes wrong. */ - phdr[i].p_paddr = 0; -#endif - } - - return TRUE; -} - -/* The default literal sections should always be marked as "code" (i.e., - SHF_EXECINSTR). This is particularly important for big-endian mode - when we do not want their contents byte reversed. */ -static const struct bfd_elf_special_section elf32_rx_special_sections[] = -{ - { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR }, - { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_EXECINSTR }, - { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR }, - { NULL, 0, 0, 0, 0 } -}; - -#define ELF_ARCH bfd_arch_rx -#define ELF_MACHINE_CODE EM_RX -#define ELF_MAXPAGESIZE 0x1000 - -#define TARGET_BIG_SYM bfd_elf32_rx_be_vec -#define TARGET_BIG_NAME "elf32-rx-be" - -#define TARGET_LITTLE_SYM bfd_elf32_rx_le_vec -#define TARGET_LITTLE_NAME "elf32-rx-le" - -#define elf_info_to_howto_rel NULL -#define elf_info_to_howto rx_info_to_howto_rela -#define elf_backend_object_p rx_elf_object_p -#define elf_backend_relocate_section rx_elf_relocate_section -#define elf_symbol_leading_char ('_') -#define elf_backend_can_gc_sections 1 -#define elf_backend_modify_program_headers elf32_rx_modify_program_headers - -#define bfd_elf32_bfd_reloc_type_lookup rx_reloc_type_lookup -#define bfd_elf32_bfd_reloc_name_lookup rx_reloc_name_lookup -#define bfd_elf32_bfd_set_private_flags rx_elf_set_private_flags -#define bfd_elf32_bfd_merge_private_bfd_data rx_elf_merge_private_bfd_data -#define bfd_elf32_bfd_print_private_bfd_data rx_elf_print_private_bfd_data -#define bfd_elf32_get_section_contents rx_get_section_contents -#define bfd_elf32_set_section_contents rx_set_section_contents -#define bfd_elf32_bfd_final_link rx_final_link -#define bfd_elf32_bfd_relax_section elf32_rx_relax_section_wrapper -#define elf_backend_special_sections elf32_rx_special_sections - -#include "elf32-target.h" - -/* We define a second big-endian target that doesn't have the custom - section get/set hooks, for times when we want to preserve the - pre-swapped .text sections (like objcopy). */ - -#undef TARGET_BIG_SYM -#define TARGET_BIG_SYM bfd_elf32_rx_be_ns_vec -#undef TARGET_BIG_NAME -#define TARGET_BIG_NAME "elf32-rx-be-ns" -#undef TARGET_LITTLE_SYM - -#undef bfd_elf32_get_section_contents -#undef bfd_elf32_set_section_contents - -#undef elf32_bed -#define elf32_bed elf32_rx_be_ns_bed - -#include "elf32-target.h" |