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author | Dan Albert <danalbert@google.com> | 2015-06-17 15:33:58 -0700 |
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committer | Dan Albert <danalbert@google.com> | 2015-06-17 15:33:58 -0700 |
commit | 7a1d76c6c5b354abbba43308d5061eb6ff96d3ea (patch) | |
tree | 78a639d039e517565afa35d7af021a6967bec0d9 /binutils-2.19/bfd/elf32-m32r.c | |
parent | c39479f4ab4d372b518957871e1f205a03e7c3d6 (diff) | |
download | toolchain_binutils-7a1d76c6c5b354abbba43308d5061eb6ff96d3ea.zip toolchain_binutils-7a1d76c6c5b354abbba43308d5061eb6ff96d3ea.tar.gz toolchain_binutils-7a1d76c6c5b354abbba43308d5061eb6ff96d3ea.tar.bz2 |
Remove old versions of binutils.
Change-Id: If634d8d30cfa8c88ca3ba59691a0df4ee5596f85
Diffstat (limited to 'binutils-2.19/bfd/elf32-m32r.c')
-rw-r--r-- | binutils-2.19/bfd/elf32-m32r.c | 4187 |
1 files changed, 0 insertions, 4187 deletions
diff --git a/binutils-2.19/bfd/elf32-m32r.c b/binutils-2.19/bfd/elf32-m32r.c deleted file mode 100644 index 032a17d..0000000 --- a/binutils-2.19/bfd/elf32-m32r.c +++ /dev/null @@ -1,4187 +0,0 @@ -/* M32R-specific support for 32-bit ELF. - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, - 2006, 2007 Free Software Foundation, Inc. - - This file is part of BFD, the Binary File Descriptor library. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#include "sysdep.h" -#include "bfd.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/m32r.h" - -#define NOP_INSN 0x7000 -#define MAKE_PARALLEL(insn) ((insn) | 0x8000) - -/* Use REL instead of RELA to save space. - This only saves space in libraries and object files, but perhaps - relocs will be put in ROM? All in all though, REL relocs are a pain - to work with. */ -/* #define USE_REL 1 - -#ifndef USE_REL -#define USE_REL 0 -#endif */ -/* Use RELA. But use REL to link old objects for backwords compatibility. */ - -/* Functions for the M32R ELF linker. */ - -/* The name of the dynamic interpreter. This is put in the .interp - section. */ - -#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" - -/* The nop opcode we use. */ - -#define M32R_NOP 0x7000f000 - -#define PLT_EMPTY 0x10101010 /* RIE -> RIE */ - -/* The size in bytes of an entry in the procedure linkage table. */ - -#define PLT_ENTRY_SIZE 20 -#define PLT_HEADER_SIZE 20 - -/* The first one entries in a procedure linkage table are reserved, - and the initial contents are unimportant (we zero them out). - Subsequent entries look like this. */ - -#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */ -#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */ -#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */ -#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */ -#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */ - -#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */ -#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */ -#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */ -#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */ -#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */ - -#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */ -#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */ -#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */ -#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */ -#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */ -#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */ -#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */ - - -/* Utility to actually perform an R_M32R_10_PCREL reloc. */ - -static bfd_reloc_status_type -m32r_elf_do_10_pcrel_reloc (bfd *abfd, - reloc_howto_type *howto, - asection *input_section, - bfd_byte *data, - bfd_vma offset, - asection *symbol_section ATTRIBUTE_UNUSED, - bfd_vma symbol_value, - bfd_vma addend) -{ - bfd_signed_vma relocation; - unsigned long x; - bfd_reloc_status_type status; - - /* Sanity check the address (offset in section). */ - if (offset > bfd_get_section_limit (abfd, input_section)) - return bfd_reloc_outofrange; - - relocation = symbol_value + addend; - /* Make it pc relative. */ - relocation -= (input_section->output_section->vma - + input_section->output_offset); - /* These jumps mask off the lower two bits of the current address - before doing pcrel calculations. */ - relocation -= (offset & -(bfd_vma) 4); - - if (relocation < -0x200 || relocation > 0x1ff) - status = bfd_reloc_overflow; - else - status = bfd_reloc_ok; - - x = bfd_get_16 (abfd, data + offset); - relocation >>= howto->rightshift; - relocation <<= howto->bitpos; - x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask); - bfd_put_16 (abfd, (bfd_vma) x, data + offset); - - return status; -} - -/* Handle the R_M32R_10_PCREL reloc. */ - -static bfd_reloc_status_type -m32r_elf_10_pcrel_reloc (bfd * abfd, - arelent * reloc_entry, - asymbol * symbol, - void * data, - asection * input_section, - bfd * output_bfd, - char ** error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (! reloc_entry->howto->partial_inplace - || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto, - input_section, - data, reloc_entry->address, - symbol->section, - (symbol->value - + symbol->section->output_section->vma - + symbol->section->output_offset), - reloc_entry->addend); -} - -/* Do generic partial_inplace relocation. - This is a local replacement for bfd_elf_generic_reloc. */ - -static bfd_reloc_status_type -m32r_elf_generic_reloc (bfd *input_bfd, - arelent *reloc_entry, - asymbol *symbol, - void * data, - asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - bfd_reloc_status_type ret; - bfd_vma relocation; - bfd_byte *inplace_address; - - /* This part is from bfd_elf_generic_reloc. - If we're relocating, and this an external symbol, we don't want - to change anything. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* Now do the reloc in the usual way. - ??? It would be nice to call bfd_elf_generic_reloc here, - but we have partial_inplace set. bfd_elf_generic_reloc will - pass the handling back to bfd_install_relocation which will install - a section relative addend which is wrong. */ - - /* Sanity check the address (offset in section). */ - if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section)) - return bfd_reloc_outofrange; - - ret = bfd_reloc_ok; - if (bfd_is_und_section (symbol->section) - && output_bfd == NULL) - ret = bfd_reloc_undefined; - - if (bfd_is_com_section (symbol->section) - || output_bfd != NULL) - relocation = 0; - else - relocation = symbol->value; - - /* Only do this for a final link. */ - if (output_bfd == NULL) - { - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - } - - relocation += reloc_entry->addend; - inplace_address = (bfd_byte *) data + reloc_entry->address; - -#define DOIT(x) \ - x = ( (x & ~reloc_entry->howto->dst_mask) | \ - (((x & reloc_entry->howto->src_mask) + relocation) & \ - reloc_entry->howto->dst_mask)) - - switch (reloc_entry->howto->size) - { - case 1: - { - short x = bfd_get_16 (input_bfd, inplace_address); - DOIT (x); - bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address); - } - break; - case 2: - { - unsigned long x = bfd_get_32 (input_bfd, inplace_address); - DOIT (x); - bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address); - } - break; - default: - BFD_ASSERT (0); - } - - if (output_bfd != NULL) - reloc_entry->address += input_section->output_offset; - - return ret; -} - -/* Handle the R_M32R_SDA16 reloc. - This reloc is used to compute the address of objects in the small data area - and to perform loads and stores from that area. - The lower 16 bits are sign extended and added to the register specified - in the instruction, which is assumed to point to _SDA_BASE_. */ - -static bfd_reloc_status_type -m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED, - arelent *reloc_entry, - asymbol *symbol, - void * data ATTRIBUTE_UNUSED, - asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - /* This part is from bfd_elf_generic_reloc. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && (! reloc_entry->howto->partial_inplace - || reloc_entry->addend == 0)) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (output_bfd != NULL) - /* FIXME: See bfd_perform_relocation. Is this right? */ - return bfd_reloc_continue; - - /* FIXME: not sure what to do here yet. But then again, the linker - may never call us. */ - abort (); -} - - -/* Handle the R_M32R_HI16_[SU]LO relocs. - HI16_SLO is for the add3 and load/store with displacement instructions. - HI16_ULO is for the or3 instruction. - For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to - the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then - we must add one to the high 16 bytes (which will get subtracted off when - the low 16 bits are added). - These relocs have to be done in combination with an R_M32R_LO16 reloc - because there is a carry from the LO16 to the HI16. Here we just save - the information we need; we do the actual relocation when we see the LO16. - This code is copied from the elf32-mips.c. We also support an arbitrary - number of HI16 relocs to be associated with a single LO16 reloc. The - assembler sorts the relocs to ensure each HI16 immediately precedes its - LO16. However if there are multiple copies, the assembler may not find - the real LO16 so it picks the first one it finds. */ - -struct m32r_hi16 -{ - struct m32r_hi16 *next; - bfd_byte *addr; - bfd_vma addend; -}; - -/* FIXME: This should not be a static variable. */ - -static struct m32r_hi16 *m32r_hi16_list; - -static bfd_reloc_status_type -m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED, - arelent *reloc_entry, - asymbol *symbol, - void * data, - asection *input_section, - bfd *output_bfd, - char **error_message ATTRIBUTE_UNUSED) -{ - bfd_reloc_status_type ret; - bfd_vma relocation; - struct m32r_hi16 *n; - - /* This part is from bfd_elf_generic_reloc. - If we're relocating, and this an external symbol, we don't want - to change anything. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - /* Sanity check the address (offset in section). */ - if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) - return bfd_reloc_outofrange; - - ret = bfd_reloc_ok; - if (bfd_is_und_section (symbol->section) - && output_bfd == NULL) - ret = bfd_reloc_undefined; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value; - - relocation += symbol->section->output_section->vma; - relocation += symbol->section->output_offset; - relocation += reloc_entry->addend; - - /* Save the information, and let LO16 do the actual relocation. */ - n = bfd_malloc ((bfd_size_type) sizeof *n); - if (n == NULL) - return bfd_reloc_outofrange; - n->addr = (bfd_byte *) data + reloc_entry->address; - n->addend = relocation; - n->next = m32r_hi16_list; - m32r_hi16_list = n; - - if (output_bfd != NULL) - reloc_entry->address += input_section->output_offset; - - return ret; -} - -/* Handle an M32R ELF HI16 reloc. */ - -static void -m32r_elf_relocate_hi16 (bfd *input_bfd, - int type, - Elf_Internal_Rela *relhi, - Elf_Internal_Rela *rello, - bfd_byte *contents, - bfd_vma addend) -{ - unsigned long insn; - bfd_vma addlo; - - insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); - - addlo = bfd_get_32 (input_bfd, contents + rello->r_offset); - if (type == R_M32R_HI16_SLO) - addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000; - else - addlo &= 0xffff; - - addend += ((insn & 0xffff) << 16) + addlo; - - /* Reaccount for sign extension of low part. */ - if (type == R_M32R_HI16_SLO - && (addend & 0x8000) != 0) - addend += 0x10000; - - bfd_put_32 (input_bfd, - (insn & 0xffff0000) | ((addend >> 16) & 0xffff), - contents + relhi->r_offset); -} - -/* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit - inplace relocation; this function exists in order to do the - R_M32R_HI16_[SU]LO relocation described above. */ - -static bfd_reloc_status_type -m32r_elf_lo16_reloc (bfd *input_bfd, - arelent *reloc_entry, - asymbol *symbol, - void * data, - asection *input_section, - bfd *output_bfd, - char **error_message) -{ - /* This part is from bfd_elf_generic_reloc. - If we're relocating, and this an external symbol, we don't want - to change anything. */ - if (output_bfd != NULL - && (symbol->flags & BSF_SECTION_SYM) == 0 - && reloc_entry->addend == 0) - { - reloc_entry->address += input_section->output_offset; - return bfd_reloc_ok; - } - - if (m32r_hi16_list != NULL) - { - struct m32r_hi16 *l; - - l = m32r_hi16_list; - while (l != NULL) - { - unsigned long insn; - unsigned long val; - unsigned long vallo; - struct m32r_hi16 *next; - - /* Do the HI16 relocation. Note that we actually don't need - to know anything about the LO16 itself, except where to - find the low 16 bits of the addend needed by the LO16. */ - insn = bfd_get_32 (input_bfd, l->addr); - vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address) - & 0xffff) ^ 0x8000) - 0x8000; - val = ((insn & 0xffff) << 16) + vallo; - val += l->addend; - - /* Reaccount for sign extension of low part. */ - if ((val & 0x8000) != 0) - val += 0x10000; - - insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff); - bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr); - - next = l->next; - free (l); - l = next; - } - - m32r_hi16_list = NULL; - } - - /* Now do the LO16 reloc in the usual way. - ??? It would be nice to call bfd_elf_generic_reloc here, - but we have partial_inplace set. bfd_elf_generic_reloc will - pass the handling back to bfd_install_relocation which will install - a section relative addend which is wrong. */ - return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); -} - - -static reloc_howto_type m32r_elf_howto_table[] = -{ - /* This reloc does nothing. */ - HOWTO (R_M32R_NONE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_NONE", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 16 bit absolute relocation. */ - HOWTO (R_M32R_16, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - m32r_elf_generic_reloc,/* special_function */ - "R_M32R_16", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32 bit absolute relocation. */ - HOWTO (R_M32R_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - m32r_elf_generic_reloc,/* special_function */ - "R_M32R_32", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 24 bit address. */ - HOWTO (R_M32R_24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 24, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - m32r_elf_generic_reloc,/* special_function */ - "R_M32R_24", /* name */ - TRUE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An PC Relative 10-bit relocation, shifted by 2. - This reloc is complicated because relocations are relative to pc & -4. - i.e. branches in the right insn slot use the address of the left insn - slot for pc. */ - /* ??? It's not clear whether this should have partial_inplace set or not. - Branch relaxing in the assembler can store the addend in the insn, - and if bfd_install_relocation gets called the addend may get added - again. */ - HOWTO (R_M32R_10_PCREL, /* type */ - 2, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 10, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - m32r_elf_10_pcrel_reloc, /* special_function */ - "R_M32R_10_PCREL", /* name */ - FALSE, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 18 bit relocation, right shifted by 2. */ - HOWTO (R_M32R_18_PCREL, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_18_PCREL", /* name */ - FALSE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 26 bit relocation, right shifted by 2. */ - /* ??? It's not clear whether this should have partial_inplace set or not. - Branch relaxing in the assembler can store the addend in the insn, - and if bfd_install_relocation gets called the addend may get added - again. */ - HOWTO (R_M32R_26_PCREL, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_26_PCREL", /* name */ - FALSE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* High 16 bits of address when lower 16 is or'd in. */ - HOWTO (R_M32R_HI16_ULO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - m32r_elf_hi16_reloc, /* special_function */ - "R_M32R_HI16_ULO", /* name */ - TRUE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* High 16 bits of address when lower 16 is added in. */ - HOWTO (R_M32R_HI16_SLO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - m32r_elf_hi16_reloc, /* special_function */ - "R_M32R_HI16_SLO", /* name */ - TRUE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Lower 16 bits of address. */ - HOWTO (R_M32R_LO16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - m32r_elf_lo16_reloc, /* special_function */ - "R_M32R_LO16", /* name */ - TRUE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Small data area 16 bits offset. */ - HOWTO (R_M32R_SDA16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - m32r_elf_sda16_reloc, /* special_function */ - "R_M32R_SDA16", /* name */ - TRUE, /* partial_inplace */ /* FIXME: correct? */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* GNU extension to record C++ vtable hierarchy. */ - HOWTO (R_M32R_GNU_VTINHERIT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - NULL, /* special_function */ - "R_M32R_GNU_VTINHERIT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* GNU extension to record C++ vtable member usage. */ - HOWTO (R_M32R_GNU_VTENTRY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_elf_rel_vtable_reloc_fn, /* special_function */ - "R_M32R_GNU_VTENTRY", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - EMPTY_HOWTO (13), - EMPTY_HOWTO (14), - EMPTY_HOWTO (15), - EMPTY_HOWTO (16), - EMPTY_HOWTO (17), - EMPTY_HOWTO (18), - EMPTY_HOWTO (19), - EMPTY_HOWTO (20), - EMPTY_HOWTO (21), - EMPTY_HOWTO (22), - EMPTY_HOWTO (23), - EMPTY_HOWTO (24), - EMPTY_HOWTO (25), - EMPTY_HOWTO (26), - EMPTY_HOWTO (27), - EMPTY_HOWTO (28), - EMPTY_HOWTO (29), - EMPTY_HOWTO (30), - EMPTY_HOWTO (31), - EMPTY_HOWTO (32), - - /* A 16 bit absolute relocation. */ - HOWTO (R_M32R_16_RELA, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_16_RELA", /* name */ - FALSE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32 bit absolute relocation. */ - HOWTO (R_M32R_32_RELA, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc,/* special_function */ - "R_M32R_32_RELA", /* name */ - FALSE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 24 bit address. */ - HOWTO (R_M32R_24_RELA, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 24, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - bfd_elf_generic_reloc,/* special_function */ - "R_M32R_24_RELA", /* name */ - FALSE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_M32R_10_PCREL_RELA, /* type */ - 2, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 10, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - m32r_elf_10_pcrel_reloc, /* special_function */ - "R_M32R_10_PCREL_RELA",/* name */ - FALSE, /* partial_inplace */ - 0xff, /* src_mask */ - 0xff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 18 bit relocation, right shifted by 2. */ - HOWTO (R_M32R_18_PCREL_RELA, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_18_PCREL_RELA",/* name */ - FALSE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* A relative 26 bit relocation, right shifted by 2. */ - HOWTO (R_M32R_26_PCREL_RELA, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_26_PCREL_RELA",/* name */ - FALSE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* High 16 bits of address when lower 16 is or'd in. */ - HOWTO (R_M32R_HI16_ULO_RELA, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_HI16_ULO_RELA",/* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* High 16 bits of address when lower 16 is added in. */ - HOWTO (R_M32R_HI16_SLO_RELA, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_HI16_SLO_RELA",/* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Lower 16 bits of address. */ - HOWTO (R_M32R_LO16_RELA, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_LO16_RELA", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Small data area 16 bits offset. */ - HOWTO (R_M32R_SDA16_RELA, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_SDA16_RELA", /* name */ - TRUE, /* partial_inplace */ /* FIXME: correct? */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* GNU extension to record C++ vtable hierarchy. */ - HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - NULL, /* special_function */ - "R_M32R_RELA_GNU_VTINHERIT", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* GNU extension to record C++ vtable member usage. */ - HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_elf_rel_vtable_reloc_fn, /* special_function */ - "R_M32R_RELA_GNU_VTENTRY", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32 bit PC relative relocation. */ - HOWTO (R_M32R_REL32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc,/* special_function */ - "R_M32R_REL32", /* name */ - FALSE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - EMPTY_HOWTO (46), - EMPTY_HOWTO (47), - - /* Like R_M32R_24, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_M32R_GOT24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 24, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOT24", /* name */ - FALSE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_M32R_PCREL, but referring to the procedure linkage table - entry for the symbol. */ - HOWTO (R_M32R_26_PLTREL, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 24, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_26_PLTREL", /* name */ - FALSE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* This is used only by the dynamic linker. The symbol should exist - both in the object being run and in some shared library. The - dynamic linker copies the data addressed by the symbol from the - shared library into the object, because the object being - run has to have the data at some particular address. */ - HOWTO (R_M32R_COPY, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_COPY", /* name */ - FALSE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_M32R_24, but used when setting global offset table - entries. */ - HOWTO (R_M32R_GLOB_DAT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GLOB_DAT", /* name */ - FALSE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Marks a procedure linkage table entry for a symbol. */ - HOWTO (R_M32R_JMP_SLOT, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_JMP_SLOT", /* name */ - FALSE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Used only by the dynamic linker. When the object is run, this - longword is set to the load address of the object, plus the - addend. */ - HOWTO (R_M32R_RELATIVE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_RELATIVE", /* name */ - FALSE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_M32R_GOTOFF, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 24, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTOFF", /* name */ - FALSE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An PC Relative 24-bit relocation used when setting PIC offset - table register. */ - HOWTO (R_M32R_GOTPC24, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 24, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_unsigned, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTPC24", /* name */ - FALSE, /* partial_inplace */ - 0xffffff, /* src_mask */ - 0xffffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_M32R_GOT16_HI_ULO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOT16_HI_ULO", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_M32R_GOT16_HI_SLO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOT16_HI_SLO", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* Like R_M32R_LO16, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_M32R_GOT16_LO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOT16_LO", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* An PC Relative relocation used when setting PIC offset table register. - Like R_M32R_HI16_ULO, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_M32R_GOTPC_HI_ULO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTPC_HI_ULO", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* An PC Relative relocation used when setting PIC offset table register. - Like R_M32R_HI16_SLO, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_M32R_GOTPC_HI_SLO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTPC_HI_SLO", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - /* An PC Relative relocation used when setting PIC offset table register. - Like R_M32R_LO16, but referring to the GOT table entry for - the symbol. */ - HOWTO (R_M32R_GOTPC_LO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTPC_LO", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - TRUE), /* pcrel_offset */ - - HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTOFF_HI_ULO",/* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */ - 16, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTOFF_HI_SLO",/* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - HOWTO (R_M32R_GOTOFF_LO, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_M32R_GOTOFF_LO", /* name */ - FALSE, /* partial_inplace */ - 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ - FALSE), /* pcrel_offset */ -}; - -/* Map BFD reloc types to M32R ELF reloc types. */ - -struct m32r_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -#ifdef USE_M32R_OLD_RELOC -static const struct m32r_reloc_map m32r_reloc_map_old[] = -{ - { BFD_RELOC_NONE, R_M32R_NONE }, - { BFD_RELOC_16, R_M32R_16 }, - { BFD_RELOC_32, R_M32R_32 }, - { BFD_RELOC_M32R_24, R_M32R_24 }, - { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL }, - { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL }, - { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL }, - { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO }, - { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO }, - { BFD_RELOC_M32R_LO16, R_M32R_LO16 }, - { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 }, - { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT }, - { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY }, -}; -#else -static const struct m32r_reloc_map m32r_reloc_map[] = -{ - { BFD_RELOC_NONE, R_M32R_NONE }, - { BFD_RELOC_16, R_M32R_16_RELA }, - { BFD_RELOC_32, R_M32R_32_RELA }, - { BFD_RELOC_M32R_24, R_M32R_24_RELA }, - { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA }, - { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA }, - { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA }, - { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA }, - { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA }, - { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA }, - { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA }, - { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT }, - { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY }, - { BFD_RELOC_32_PCREL, R_M32R_REL32 }, - - { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 }, - { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL }, - { BFD_RELOC_M32R_COPY, R_M32R_COPY }, - { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT }, - { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT }, - { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE }, - { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF }, - { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 }, - { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO }, - { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO }, - { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO }, - { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO }, - { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO }, - { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO }, - { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO }, - { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO }, - { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO }, -}; -#endif - -static reloc_howto_type * -bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - unsigned int i; - -#ifdef USE_M32R_OLD_RELOC - for (i = 0; - i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map); - i++) - if (m32r_reloc_map_old[i].bfd_reloc_val == code) - return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val]; - -#else /* ! USE_M32R_OLD_RELOC */ - - for (i = 0; - i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map); - i++) - if (m32r_reloc_map[i].bfd_reloc_val == code) - return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val]; -#endif - - return NULL; -} - -static reloc_howto_type * -bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, - const char *r_name) -{ - unsigned int i; - - for (i = 0; - i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]); - i++) - if (m32r_elf_howto_table[i].name != NULL - && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0) - return &m32r_elf_howto_table[i]; - - return NULL; -} - -/* Set the howto pointer for an M32R ELF reloc. */ - -static void -m32r_info_to_howto_rel (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 (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY); - cache_ptr->howto = &m32r_elf_howto_table[r_type]; -} - -static void -m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, - arelent *cache_ptr, - Elf_Internal_Rela *dst) -{ - BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE) - || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY) - && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max))); - cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; -} - - -/* Given a BFD section, try to locate the corresponding ELF section - index. */ - -static bfd_boolean -_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED, - asection *sec, - int *retval) -{ - if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) - { - *retval = SHN_M32R_SCOMMON; - return TRUE; - } - return FALSE; -} - -/* M32R ELF uses two common sections. One is the usual one, and the other - is for small objects. All the small objects are kept together, and then - referenced via one register, which yields faster assembler code. It is - up to the compiler to emit an instruction to load the register with - _SDA_BASE. This is what we use for the small common section. This - approach is copied from elf32-mips.c. */ -static asection m32r_elf_scom_section; -static asymbol m32r_elf_scom_symbol; -static asymbol *m32r_elf_scom_symbol_ptr; - -/* Handle the special M32R section numbers that a symbol may use. */ - -static void -_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym) -{ - elf_symbol_type *elfsym = (elf_symbol_type *) asym; - - switch (elfsym->internal_elf_sym.st_shndx) - { - case SHN_M32R_SCOMMON: - if (m32r_elf_scom_section.name == NULL) - { - /* Initialize the small common section. */ - m32r_elf_scom_section.name = ".scommon"; - m32r_elf_scom_section.flags = SEC_IS_COMMON; - m32r_elf_scom_section.output_section = &m32r_elf_scom_section; - m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol; - m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr; - m32r_elf_scom_symbol.name = ".scommon"; - m32r_elf_scom_symbol.flags = BSF_SECTION_SYM; - m32r_elf_scom_symbol.section = &m32r_elf_scom_section; - m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol; - } - asym->section = &m32r_elf_scom_section; - asym->value = elfsym->internal_elf_sym.st_size; - break; - } -} - -/* Hook called by the linker routine which adds symbols from an object - file. We must handle the special M32R section numbers here. - We also keep watching for whether we need to create the sdata special - linker sections. */ - -static bfd_boolean -m32r_elf_add_symbol_hook (bfd *abfd, - struct bfd_link_info *info, - Elf_Internal_Sym *sym, - const char **namep, - flagword *flagsp ATTRIBUTE_UNUSED, - asection **secp, - bfd_vma *valp) -{ - if (! info->relocatable - && (*namep)[0] == '_' && (*namep)[1] == 'S' - && strcmp (*namep, "_SDA_BASE_") == 0 - && is_elf_hash_table (info->hash)) - { - /* This is simpler than using _bfd_elf_create_linker_section - (our needs are simpler than ppc's needs). Also - _bfd_elf_create_linker_section currently has a bug where if a .sdata - section already exists a new one is created that follows it which - screws of _SDA_BASE_ address calcs because output_offset != 0. */ - struct elf_link_hash_entry *h; - struct bfd_link_hash_entry *bh; - asection *s = bfd_get_section_by_name (abfd, ".sdata"); - - /* The following code was cobbled from elf32-ppc.c and elflink.c. */ - if (s == NULL) - { - flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - - s = bfd_make_section_anyway_with_flags (abfd, ".sdata", - flags); - if (s == NULL) - return FALSE; - bfd_set_section_alignment (abfd, s, 2); - } - - bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", - FALSE, FALSE, FALSE); - - if ((bh == NULL || bh->type == bfd_link_hash_undefined) - && !(_bfd_generic_link_add_one_symbol (info, - abfd, - "_SDA_BASE_", - BSF_GLOBAL, - s, - (bfd_vma) 32768, - NULL, - FALSE, - get_elf_backend_data (abfd)->collect, - &bh))) - return FALSE; - h = (struct elf_link_hash_entry *) bh; - h->type = STT_OBJECT; - } - - switch (sym->st_shndx) - { - case SHN_M32R_SCOMMON: - *secp = bfd_make_section_old_way (abfd, ".scommon"); - (*secp)->flags |= SEC_IS_COMMON; - *valp = sym->st_size; - break; - } - - return TRUE; -} - -/* We have to figure out the SDA_BASE value, so that we can adjust the - symbol value correctly. We look up the symbol _SDA_BASE_ in the output - BFD. If we can't find it, we're stuck. We cache it in the ELF - target data. We don't need to adjust the symbol value for an - external symbol if we are producing relocatable output. */ - -static bfd_reloc_status_type -m32r_elf_final_sda_base (bfd *output_bfd, - struct bfd_link_info *info, - const char **error_message, - bfd_vma *psb) -{ - if (elf_gp (output_bfd) == 0) - { - struct bfd_link_hash_entry *h; - - h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE); - if (h != NULL && h->type == bfd_link_hash_defined) - elf_gp (output_bfd) = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - else - { - /* Only get the error once. */ - *psb = elf_gp (output_bfd) = 4; - *error_message = - (const char *) _("SDA relocation when _SDA_BASE_ not defined"); - return bfd_reloc_dangerous; - } - } - *psb = elf_gp (output_bfd); - return bfd_reloc_ok; -} - -/* Return size of a PLT entry. */ -#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE - -/* The m32r linker needs to keep track of the number of relocs that it - decides to copy in check_relocs for each symbol. This is so that - it can discard PC relative relocs if it doesn't need them when - linking with -Bsymbolic. We store the information in a field - extending the regular ELF linker hash table. */ - -/* This structure keeps track of the number of PC relative relocs we - have copied for a given symbol. */ - -struct elf_m32r_pcrel_relocs_copied -{ - /* Next section. */ - struct elf_m32r_pcrel_relocs_copied *next; - /* A section in dynobj. */ - asection *section; - /* Number of relocs copied in this section. */ - bfd_size_type count; -}; - -/* The sh linker needs to keep track of the number of relocs that it - decides to copy as dynamic relocs in check_relocs for each symbol. - This is so that it can later discard them if they are found to be - unnecessary. We store the information in a field extending the - regular ELF linker hash table. */ - -struct elf_m32r_dyn_relocs -{ - struct elf_m32r_dyn_relocs *next; - - /* The input section of the reloc. */ - asection *sec; - - /* Total number of relocs copied for the input section. */ - bfd_size_type count; - - /* Number of pc-relative relocs copied for the input section. */ - bfd_size_type pc_count; -}; - - -/* m32r ELF linker hash entry. */ - -struct elf_m32r_link_hash_entry -{ - struct elf_link_hash_entry root; - - /* Track dynamic relocs copied for this symbol. */ - struct elf_m32r_dyn_relocs *dyn_relocs; -}; - -/* m32r ELF linker hash table. */ - -struct elf_m32r_link_hash_table -{ - struct elf_link_hash_table root; - - /* Short-cuts to get to dynamic linker sections. */ - asection *sgot; - asection *sgotplt; - asection *srelgot; - asection *splt; - asection *srelplt; - asection *sdynbss; - asection *srelbss; - - /* Small local sym to section mapping cache. */ - struct sym_sec_cache sym_sec; -}; - -/* Traverse an m32r ELF linker hash table. */ - -#define m32r_elf_link_hash_traverse(table, func, info) \ - (elf_link_hash_traverse \ - (&(table)->root, \ - (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ - (info))) - -/* Get the m32r ELF linker hash table from a link_info structure. */ - - -#define m32r_elf_hash_table(p) \ - ((struct elf_m32r_link_hash_table *) ((p)->hash)) - -/* Create an entry in an m32r ELF linker hash table. */ - -static struct bfd_hash_entry * -m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry, - struct bfd_hash_table *table, - const char *string) -{ - struct elf_m32r_link_hash_entry *ret = - (struct elf_m32r_link_hash_entry *) entry; - - /* Allocate the structure if it has not already been allocated by a - subclass. */ - if (ret == NULL) - ret = bfd_hash_allocate (table, - sizeof (struct elf_m32r_link_hash_entry)); - if (ret == NULL) - return NULL; - - /* Call the allocation method of the superclass. */ - ret = ((struct elf_m32r_link_hash_entry *) - _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, - table, string)); - if (ret != NULL) - { - struct elf_m32r_link_hash_entry *eh; - - eh = (struct elf_m32r_link_hash_entry *) ret; - eh->dyn_relocs = NULL; - } - - return (struct bfd_hash_entry *) ret; -} - -/* Create an m32r ELF linker hash table. */ - -static struct bfd_link_hash_table * -m32r_elf_link_hash_table_create (bfd *abfd) -{ - struct elf_m32r_link_hash_table *ret; - bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table); - - ret = bfd_malloc (amt); - if (ret == NULL) - return NULL; - - if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, - m32r_elf_link_hash_newfunc, - sizeof (struct elf_m32r_link_hash_entry))) - { - free (ret); - return NULL; - } - - ret->sgot = NULL; - ret->sgotplt = NULL; - ret->srelgot = NULL; - ret->splt = NULL; - ret->srelplt = NULL; - ret->sdynbss = NULL; - ret->srelbss = NULL; - ret->sym_sec.abfd = NULL; - - return &ret->root.root; -} - -/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up - shortcuts to them in our hash table. */ - -static bfd_boolean -create_got_section (bfd *dynobj, struct bfd_link_info *info) -{ - struct elf_m32r_link_hash_table *htab; - - if (! _bfd_elf_create_got_section (dynobj, info)) - return FALSE; - - htab = m32r_elf_hash_table (info); - htab->sgot = bfd_get_section_by_name (dynobj, ".got"); - htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); - if (! htab->sgot || ! htab->sgotplt) - abort (); - - htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got", - (SEC_ALLOC - | SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_LINKER_CREATED - | SEC_READONLY)); - if (htab->srelgot == NULL - || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) - return FALSE; - - return TRUE; -} - -/* Create dynamic sections when linking against a dynamic object. */ - -static bfd_boolean -m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) -{ - struct elf_m32r_link_hash_table *htab; - flagword flags, pltflags; - asection *s; - const struct elf_backend_data *bed = get_elf_backend_data (abfd); - int ptralign = 2; /* 32bit */ - - htab = m32r_elf_hash_table (info); - - /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and - .rel[a].bss sections. */ - flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY - | SEC_LINKER_CREATED); - - pltflags = flags; - pltflags |= SEC_CODE; - if (bed->plt_not_loaded) - pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); - if (bed->plt_readonly) - pltflags |= SEC_READONLY; - - s = bfd_make_section_with_flags (abfd, ".plt", pltflags); - htab->splt = s; - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) - return FALSE; - - if (bed->want_plt_sym) - { - /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the - .plt section. */ - struct bfd_link_hash_entry *bh = NULL; - struct elf_link_hash_entry *h; - - if (! (_bfd_generic_link_add_one_symbol - (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, - (bfd_vma) 0, NULL, FALSE, - get_elf_backend_data (abfd)->collect, &bh))) - return FALSE; - h = (struct elf_link_hash_entry *) bh; - h->def_regular = 1; - h->type = STT_OBJECT; - htab->root.hplt = h; - - if (info->shared - && ! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - - s = bfd_make_section_with_flags (abfd, - bed->default_use_rela_p ? ".rela.plt" : ".rel.plt", - flags | SEC_READONLY); - htab->srelplt = s; - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, ptralign)) - return FALSE; - - if (htab->sgot == NULL - && ! create_got_section (abfd, info)) - return FALSE; - - { - const char *secname; - char *relname; - flagword secflags; - asection *sec; - - for (sec = abfd->sections; sec; sec = sec->next) - { - secflags = bfd_get_section_flags (abfd, sec); - if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) - || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) - continue; - secname = bfd_get_section_name (abfd, sec); - relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6); - strcpy (relname, ".rela"); - strcat (relname, secname); - if (bfd_get_section_by_name (abfd, secname)) - continue; - s = bfd_make_section_with_flags (abfd, relname, - flags | SEC_READONLY); - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, ptralign)) - return FALSE; - } - } - - if (bed->want_dynbss) - { - /* The .dynbss section is a place to put symbols which are defined - by dynamic objects, are referenced by regular objects, and are - not functions. We must allocate space for them in the process - image and use a R_*_COPY reloc to tell the dynamic linker to - initialize them at run time. The linker script puts the .dynbss - section into the .bss section of the final image. */ - s = bfd_make_section_with_flags (abfd, ".dynbss", - SEC_ALLOC | SEC_LINKER_CREATED); - htab->sdynbss = s; - if (s == NULL) - return FALSE; - /* The .rel[a].bss section holds copy relocs. This section is not - normally needed. We need to create it here, though, so that the - linker will map it to an output section. We can't just create it - only if we need it, because we will not know whether we need it - until we have seen all the input files, and the first time the - main linker code calls BFD after examining all the input files - (size_dynamic_sections) the input sections have already been - mapped to the output sections. If the section turns out not to - be needed, we can discard it later. We will never need this - section when generating a shared object, since they do not use - copy relocs. */ - if (! info->shared) - { - s = bfd_make_section_with_flags (abfd, - (bed->default_use_rela_p - ? ".rela.bss" : ".rel.bss"), - flags | SEC_READONLY); - htab->srelbss = s; - if (s == NULL - || ! bfd_set_section_alignment (abfd, s, ptralign)) - return FALSE; - } - } - - return TRUE; -} - -/* Copy the extra info we tack onto an elf_link_hash_entry. */ - -static void -m32r_elf_copy_indirect_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *dir, - struct elf_link_hash_entry *ind) -{ - struct elf_m32r_link_hash_entry * edir; - struct elf_m32r_link_hash_entry * eind; - - edir = (struct elf_m32r_link_hash_entry *) dir; - eind = (struct elf_m32r_link_hash_entry *) ind; - - if (eind->dyn_relocs != NULL) - { - if (edir->dyn_relocs != NULL) - { - struct elf_m32r_dyn_relocs **pp; - struct elf_m32r_dyn_relocs *p; - - /* Add reloc counts against the indirect sym to the direct sym - list. Merge any entries against the same section. */ - for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) - { - struct elf_m32r_dyn_relocs *q; - - for (q = edir->dyn_relocs; q != NULL; q = q->next) - if (q->sec == p->sec) - { - q->pc_count += p->pc_count; - q->count += p->count; - *pp = p->next; - break; - } - if (q == NULL) - pp = &p->next; - } - *pp = edir->dyn_relocs; - } - - edir->dyn_relocs = eind->dyn_relocs; - eind->dyn_relocs = NULL; - } - - _bfd_elf_link_hash_copy_indirect (info, dir, ind); -} - - -/* Adjust a symbol defined by a dynamic object and referenced by a - regular object. The current definition is in some section of the - dynamic object, but we're not including those sections. We have to - change the definition to something the rest of the link can - understand. */ - -static bfd_boolean -m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info, - struct elf_link_hash_entry *h) -{ - struct elf_m32r_link_hash_table *htab; - struct elf_m32r_link_hash_entry *eh; - struct elf_m32r_dyn_relocs *p; - bfd *dynobj; - asection *s; - -#ifdef DEBUG_PIC - printf ("m32r_elf_adjust_dynamic_symbol()\n"); -#endif - - dynobj = elf_hash_table (info)->dynobj; - - /* Make sure we know what is going on here. */ - BFD_ASSERT (dynobj != NULL - && (h->needs_plt - || h->u.weakdef != NULL - || (h->def_dynamic - && h->ref_regular - && !h->def_regular))); - - /* If this is a function, put it in the procedure linkage table. We - will fill in the contents of the procedure linkage table later, - when we know the address of the .got section. */ - if (h->type == STT_FUNC - || h->needs_plt) - { - if (! info->shared - && !h->def_dynamic - && !h->ref_dynamic - && h->root.type != bfd_link_hash_undefweak - && h->root.type != bfd_link_hash_undefined) - { - /* This case can occur if we saw a PLT reloc in an input - file, but the symbol was never referred to by a dynamic - object. In such a case, we don't actually need to build - a procedure linkage table, and we can just do a PCREL - reloc instead. */ - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - - return TRUE; - } - else - h->plt.offset = (bfd_vma) -1; - - /* If this is a weak symbol, and there is a real definition, the - processor independent code will have arranged for us to see the - real definition first, and we can just use the same value. */ - if (h->u.weakdef != NULL) - { - BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined - || h->u.weakdef->root.type == bfd_link_hash_defweak); - h->root.u.def.section = h->u.weakdef->root.u.def.section; - h->root.u.def.value = h->u.weakdef->root.u.def.value; - return TRUE; - } - - /* This is a reference to a symbol defined by a dynamic object which - is not a function. */ - - /* If we are creating a shared library, we must presume that the - only references to the symbol are via the global offset table. - For such cases we need not do anything here; the relocations will - be handled correctly by relocate_section. */ - if (info->shared) - return TRUE; - - /* If there are no references to this symbol that do not use the - GOT, we don't need to generate a copy reloc. */ - if (!h->non_got_ref) - return TRUE; - - /* If -z nocopyreloc was given, we won't generate them either. */ - if (info->nocopyreloc) - { - h->non_got_ref = 0; - return TRUE; - } - - eh = (struct elf_m32r_link_hash_entry *) h; - for (p = eh->dyn_relocs; p != NULL; p = p->next) - { - s = p->sec->output_section; - if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0) - break; - } - - /* If we didn't find any dynamic relocs in sections which needs the - copy reloc, then we'll be keeping the dynamic relocs and avoiding - the copy reloc. */ - if (p == NULL) - { - h->non_got_ref = 0; - return TRUE; - } - - if (h->size == 0) - { - (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), - h->root.root.string); - return TRUE; - } - - /* We must allocate the symbol in our .dynbss section, which will - become part of the .bss section of the executable. There will be - an entry for this symbol in the .dynsym section. The dynamic - object will contain position independent code, so all references - from the dynamic object to this symbol will go through the global - offset table. The dynamic linker will use the .dynsym entry to - determine the address it must put in the global offset table, so - both the dynamic object and the regular object will refer to the - same memory location for the variable. */ - - htab = m32r_elf_hash_table (info); - s = htab->sdynbss; - BFD_ASSERT (s != NULL); - - /* We must generate a R_M32R_COPY reloc to tell the dynamic linker - to copy the initial value out of the dynamic object and into the - runtime process image. We need to remember the offset into the - .rela.bss section we are going to use. */ - if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) - { - asection *srel; - - srel = htab->srelbss; - BFD_ASSERT (srel != NULL); - srel->size += sizeof (Elf32_External_Rela); - h->needs_copy = 1; - } - - return _bfd_elf_adjust_dynamic_copy (h, s); -} - -/* Allocate space in .plt, .got and associated reloc sections for - dynamic relocs. */ - -static bfd_boolean -allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) -{ - struct bfd_link_info *info; - struct elf_m32r_link_hash_table *htab; - struct elf_m32r_link_hash_entry *eh; - struct elf_m32r_dyn_relocs *p; - - if (h->root.type == bfd_link_hash_indirect) - return TRUE; - - if (h->root.type == bfd_link_hash_warning) - /* When warning symbols are created, they **replace** the "real" - entry in the hash table, thus we never get to see the real - symbol in a hash traversal. So look at it now. */ - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - info = (struct bfd_link_info *) inf; - htab = m32r_elf_hash_table (info); - - eh = (struct elf_m32r_link_hash_entry *) h; - - if (htab->root.dynamic_sections_created - && h->plt.refcount > 0) - { - /* Make sure this symbol is output as a dynamic symbol. - Undefined weak syms won't yet be marked as dynamic. */ - if (h->dynindx == -1 - && !h->forced_local) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - - if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) - { - asection *s = htab->splt; - - /* If this is the first .plt entry, make room for the special - first entry. */ - if (s->size == 0) - s->size += PLT_ENTRY_SIZE; - - h->plt.offset = s->size; - - /* If this symbol is not defined in a regular file, and we are - not generating a shared library, then set the symbol to this - location in the .plt. This is required to make function - pointers compare as equal between the normal executable and - the shared library. */ - if (! info->shared - && !h->def_regular) - { - h->root.u.def.section = s; - h->root.u.def.value = h->plt.offset; - } - - /* Make room for this entry. */ - s->size += PLT_ENTRY_SIZE; - - /* We also need to make an entry in the .got.plt section, which - will be placed in the .got section by the linker script. */ - htab->sgotplt->size += 4; - - /* We also need to make an entry in the .rel.plt section. */ - htab->srelplt->size += sizeof (Elf32_External_Rela); - } - else - { - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - } - else - { - h->plt.offset = (bfd_vma) -1; - h->needs_plt = 0; - } - - if (h->got.refcount > 0) - { - asection *s; - bfd_boolean dyn; - - /* Make sure this symbol is output as a dynamic symbol. - Undefined weak syms won't yet be marked as dynamic. */ - if (h->dynindx == -1 - && !h->forced_local) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - - s = htab->sgot; - - h->got.offset = s->size; - s->size += 4; - dyn = htab->root.dynamic_sections_created; - if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) - htab->srelgot->size += sizeof (Elf32_External_Rela); - } - else - h->got.offset = (bfd_vma) -1; - - if (eh->dyn_relocs == NULL) - return TRUE; - - /* In the shared -Bsymbolic case, discard space allocated for - dynamic pc-relative relocs against symbols which turn out to be - defined in regular objects. For the normal shared case, discard - space for pc-relative relocs that have become local due to symbol - visibility changes. */ - - if (info->shared) - { - if (h->def_regular - && (h->forced_local - || info->symbolic)) - { - struct elf_m32r_dyn_relocs **pp; - - for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) - { - p->count -= p->pc_count; - p->pc_count = 0; - if (p->count == 0) - *pp = p->next; - else - pp = &p->next; - } - } - - /* Also discard relocs on undefined weak syms with non-default - visibility. */ - if (eh->dyn_relocs != NULL - && h->root.type == bfd_link_hash_undefweak) - { - if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) - eh->dyn_relocs = NULL; - - /* Make sure undefined weak symbols are output as a dynamic - symbol in PIEs. */ - else if (h->dynindx == -1 - && !h->forced_local) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - } - } - else - { - /* For the non-shared case, discard space for relocs against - symbols which turn out to need copy relocs or are not - dynamic. */ - - if (!h->non_got_ref - && ((h->def_dynamic - && !h->def_regular) - || (htab->root.dynamic_sections_created - && (h->root.type == bfd_link_hash_undefweak - || h->root.type == bfd_link_hash_undefined)))) - { - /* Make sure this symbol is output as a dynamic symbol. - Undefined weak syms won't yet be marked as dynamic. */ - if (h->dynindx == -1 - && !h->forced_local) - { - if (! bfd_elf_link_record_dynamic_symbol (info, h)) - return FALSE; - } - - /* If that succeeded, we know we'll be keeping all the - relocs. */ - if (h->dynindx != -1) - goto keep; - } - - eh->dyn_relocs = NULL; - - keep: ; - } - - /* Finally, allocate space. */ - for (p = eh->dyn_relocs; p != NULL; p = p->next) - { - asection *sreloc = elf_section_data (p->sec)->sreloc; - sreloc->size += p->count * sizeof (Elf32_External_Rela); - } - - return TRUE; -} - -/* Find any dynamic relocs that apply to read-only sections. */ - -static bfd_boolean -readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf) -{ - struct elf_m32r_link_hash_entry *eh; - struct elf_m32r_dyn_relocs *p; - - if (h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - - eh = (struct elf_m32r_link_hash_entry *) h; - for (p = eh->dyn_relocs; p != NULL; p = p->next) - { - asection *s = p->sec->output_section; - - if (s != NULL && (s->flags & SEC_READONLY) != 0) - { - struct bfd_link_info *info = (struct bfd_link_info *) inf; - - info->flags |= DF_TEXTREL; - - /* Not an error, just cut short the traversal. */ - return FALSE; - } - } - return TRUE; -} - -/* Set the sizes of the dynamic sections. */ - -static bfd_boolean -m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info) -{ - struct elf_m32r_link_hash_table *htab; - bfd *dynobj; - asection *s; - bfd_boolean relocs; - bfd *ibfd; - -#ifdef DEBUG_PIC - printf ("m32r_elf_size_dynamic_sections()\n"); -#endif - - htab = m32r_elf_hash_table (info); - dynobj = htab->root.dynobj; - BFD_ASSERT (dynobj != NULL); - - if (htab->root.dynamic_sections_created) - { - /* Set the contents of the .interp section to the interpreter. */ - if (info->executable) - { - s = bfd_get_section_by_name (dynobj, ".interp"); - BFD_ASSERT (s != NULL); - s->size = sizeof ELF_DYNAMIC_INTERPRETER; - s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; - } - } - - /* Set up .got offsets for local syms, and space for local dynamic - relocs. */ - for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) - { - bfd_signed_vma *local_got; - bfd_signed_vma *end_local_got; - bfd_size_type locsymcount; - Elf_Internal_Shdr *symtab_hdr; - asection *srel; - - if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) - continue; - - for (s = ibfd->sections; s != NULL; s = s->next) - { - struct elf_m32r_dyn_relocs *p; - - for (p = ((struct elf_m32r_dyn_relocs *) - elf_section_data (s)->local_dynrel); - p != NULL; - p = p->next) - { - if (! bfd_is_abs_section (p->sec) - && bfd_is_abs_section (p->sec->output_section)) - { - /* Input section has been discarded, either because - it is a copy of a linkonce section or due to - linker script /DISCARD/, so we'll be discarding - the relocs too. */ - } - else if (p->count != 0) - { - srel = elf_section_data (p->sec)->sreloc; - srel->size += p->count * sizeof (Elf32_External_Rela); - if ((p->sec->output_section->flags & SEC_READONLY) != 0) - info->flags |= DF_TEXTREL; - } - } - } - - local_got = elf_local_got_refcounts (ibfd); - if (!local_got) - continue; - - symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; - locsymcount = symtab_hdr->sh_info; - end_local_got = local_got + locsymcount; - s = htab->sgot; - srel = htab->srelgot; - for (; local_got < end_local_got; ++local_got) - { - if (*local_got > 0) - { - *local_got = s->size; - s->size += 4; - if (info->shared) - srel->size += sizeof (Elf32_External_Rela); - } - else - *local_got = (bfd_vma) -1; - } - } - - /* Allocate global sym .plt and .got entries, and space for global - sym dynamic relocs. */ - elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); - - /* We now have determined the sizes of the various dynamic sections. - Allocate memory for them. */ - relocs = FALSE; - for (s = dynobj->sections; s != NULL; s = s->next) - { - if ((s->flags & SEC_LINKER_CREATED) == 0) - continue; - - if (s == htab->splt - || s == htab->sgot - || s == htab->sgotplt - || s == htab->sdynbss) - { - /* Strip this section if we don't need it; see the - comment below. */ - } - else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) - { - if (s->size != 0 && s != htab->srelplt) - relocs = TRUE; - - /* We use the reloc_count field as a counter if we need - to copy relocs into the output file. */ - s->reloc_count = 0; - } - else - /* It's not one of our sections, so don't allocate space. */ - continue; - - if (s->size == 0) - { - /* If we don't need this section, strip it from the - output file. This is mostly to handle .rela.bss and - .rela.plt. We must create both sections in - create_dynamic_sections, because they must be created - before the linker maps input sections to output - sections. The linker does that before - adjust_dynamic_symbol is called, and it is that - function which decides whether anything needs to go - into these sections. */ - s->flags |= SEC_EXCLUDE; - continue; - } - - if ((s->flags & SEC_HAS_CONTENTS) == 0) - continue; - - /* Allocate memory for the section contents. We use bfd_zalloc - here in case unused entries are not reclaimed before the - section's contents are written out. This should not happen, - but this way if it does, we get a R_M32R_NONE reloc instead - of garbage. */ - s->contents = bfd_zalloc (dynobj, s->size); - if (s->contents == NULL) - return FALSE; - } - - if (htab->root.dynamic_sections_created) - { - /* Add some entries to the .dynamic section. We fill in the - values later, in m32r_elf_finish_dynamic_sections, but we - must add the entries now so that we get the correct size for - the .dynamic section. The DT_DEBUG entry is filled in by the - dynamic linker and used by the debugger. */ -#define add_dynamic_entry(TAG, VAL) \ - _bfd_elf_add_dynamic_entry (info, TAG, VAL) - - if (info->executable) - { - if (! add_dynamic_entry (DT_DEBUG, 0)) - return FALSE; - } - - if (htab->splt->size != 0) - { - if (! add_dynamic_entry (DT_PLTGOT, 0) - || ! add_dynamic_entry (DT_PLTRELSZ, 0) - || ! add_dynamic_entry (DT_PLTREL, DT_RELA) - || ! add_dynamic_entry (DT_JMPREL, 0)) - return FALSE; - } - - if (relocs) - { - if (! add_dynamic_entry (DT_RELA, 0) - || ! add_dynamic_entry (DT_RELASZ, 0) - || ! add_dynamic_entry (DT_RELAENT, - sizeof (Elf32_External_Rela))) - return FALSE; - - /* If any dynamic relocs apply to a read-only section, - then we need a DT_TEXTREL entry. */ - if ((info->flags & DF_TEXTREL) == 0) - elf_link_hash_traverse (&htab->root, readonly_dynrelocs, - info); - - if ((info->flags & DF_TEXTREL) != 0) - { - if (! add_dynamic_entry (DT_TEXTREL, 0)) - return FALSE; - } - } - } -#undef add_dynamic_entry - - return TRUE; -} - -/* Relocate an M32R/D ELF section. - There is some attempt to make this function usable for many architectures, - both for RELA and REL type relocs, 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 adjust 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 -m32r_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 = &elf_tdata (input_bfd)->symtab_hdr; - struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); - Elf_Internal_Rela *rel, *relend; - /* Assume success. */ - bfd_boolean ret = TRUE; - - struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info); - bfd *dynobj; - bfd_vma *local_got_offsets; - asection *sgot, *splt, *sreloc; - bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section); - - dynobj = htab->root.dynobj; - local_got_offsets = elf_local_got_offsets (input_bfd); - - sgot = htab->sgot; - splt = htab->splt; - sreloc = NULL; - - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) - { - int r_type; - reloc_howto_type *howto; - unsigned long r_symndx; - struct elf_link_hash_entry *h; - /* We can't modify r_addend here as elf_link_input_bfd has an assert to - ensure it's zero (we use REL relocs, not RELA). Therefore this - should be assigning zero to `addend', but for clarity we use - `r_addend'. */ - bfd_vma addend = rel->r_addend; - bfd_vma offset = rel->r_offset; - bfd_vma relocation; - Elf_Internal_Sym *sym; - asection *sec; - const char *sym_name; - bfd_reloc_status_type r; - const char *errmsg = NULL; - bfd_boolean use_rel = FALSE; - - h = NULL; - r_type = ELF32_R_TYPE (rel->r_info); - if (r_type < 0 || r_type >= (int) R_M32R_max) - { - (*_bfd_error_handler) (_("%B: unknown relocation type %d"), - input_bfd, - (int) r_type); - bfd_set_error (bfd_error_bad_value); - ret = FALSE; - continue; - } - - if ( r_type == R_M32R_GNU_VTENTRY - || r_type == R_M32R_GNU_VTINHERIT - || r_type == R_M32R_NONE - || r_type == R_M32R_RELA_GNU_VTENTRY - || r_type == R_M32R_RELA_GNU_VTINHERIT) - continue; - - if (r_type <= R_M32R_GNU_VTENTRY) - use_rel = TRUE; - - howto = m32r_elf_howto_table + r_type; - r_symndx = ELF32_R_SYM (rel->r_info); - - sym = NULL; - sec = NULL; - h = NULL; - - if (r_symndx < symtab_hdr->sh_info) - { - /* Local symbol. */ - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - sym_name = "<local symbol>"; - - if (!use_rel) - { - relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); - addend = rel->r_addend; - } - else - { - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); - } - } - else - { - /* External symbol. */ - relocation = 0; - - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - sym_name = h->root.root.string; - - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - bfd_boolean dyn; - sec = h->root.u.def.section; - - dyn = htab->root.dynamic_sections_created; - sec = h->root.u.def.section; - if (r_type == R_M32R_GOTPC24 - || (r_type == R_M32R_GOTPC_HI_ULO - || r_type == R_M32R_GOTPC_HI_SLO - || r_type == R_M32R_GOTPC_LO) - || (r_type == R_M32R_26_PLTREL - && h->plt.offset != (bfd_vma) -1) - || ((r_type == R_M32R_GOT24 - || r_type == R_M32R_GOT16_HI_ULO - || r_type == R_M32R_GOT16_HI_SLO - || r_type == R_M32R_GOT16_LO) - && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, - info->shared, h) - && (! info->shared - || (! info->symbolic && h->dynindx != -1) - || !h->def_regular)) - || (info->shared - && ((! info->symbolic && h->dynindx != -1) - || !h->def_regular) - && (((r_type == R_M32R_16_RELA - || r_type == R_M32R_32_RELA - || r_type == R_M32R_24_RELA - || r_type == R_M32R_HI16_ULO_RELA - || r_type == R_M32R_HI16_SLO_RELA - || r_type == R_M32R_LO16_RELA) - && !h->forced_local) - || r_type == R_M32R_REL32 - || r_type == R_M32R_10_PCREL_RELA - || r_type == R_M32R_18_PCREL_RELA - || r_type == R_M32R_26_PCREL_RELA) - && ((input_section->flags & SEC_ALLOC) != 0 - /* DWARF will emit R_M32R_16(24,32) relocations - in its sections against symbols defined - externally in shared libraries. We can't do - anything with them here. */ - || ((input_section->flags & SEC_DEBUGGING) != 0 - && h->def_dynamic)))) - { - /* In these cases, we don't need the relocation - value. We check specially because in some - obscure cases sec->output_section will be NULL. */ - } - else if (sec->output_section != NULL) - relocation = (h->root.u.def.value - + sec->output_section->vma - + sec->output_offset); - else if (!info->relocatable) - { - (*_bfd_error_handler) - (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), - input_bfd, - input_section, - (long) rel->r_offset, - howto->name, - h->root.root.string); - } - } - else if (h->root.type == bfd_link_hash_undefweak) - ; - else if (info->unresolved_syms_in_objects == RM_IGNORE - && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) - ; - else if (!info->relocatable) - { - if (! ((*info->callbacks->undefined_symbol) - (info, h->root.root.string, input_bfd, - input_section, offset, - (info->unresolved_syms_in_objects == RM_GENERATE_ERROR - || ELF_ST_VISIBILITY (h->other))))) - return FALSE; - } - } - - if (sec != NULL && elf_discarded_section (sec)) - { - /* For relocs against symbols from removed linkonce sections, - or sections discarded by a linker script, we just want the - section contents zeroed. Avoid any special processing. */ - _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); - rel->r_info = 0; - rel->r_addend = 0; - continue; - } - - if (info->relocatable && !use_rel) - { - /* 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 (info->relocatable && use_rel) - { - /* 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) - continue; - - addend += sec->output_offset; - - /* If partial_inplace, we need to store any additional addend - back in the section. */ - if (! howto->partial_inplace) - continue; - /* ??? Here is a nice place to call a special_function - like handler. */ - if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO) - r = _bfd_relocate_contents (howto, input_bfd, - addend, contents + offset); - else - { - Elf_Internal_Rela *lorel; - - /* We allow an arbitrary number of HI16 relocs before the - LO16 reloc. This permits gcc to emit the HI and LO relocs - itself. */ - for (lorel = rel + 1; - (lorel < relend - && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO - || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO)); - lorel++) - continue; - if (lorel < relend - && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16) - { - m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel, - contents, addend); - r = bfd_reloc_ok; - } - else - r = _bfd_relocate_contents (howto, input_bfd, - addend, contents + offset); - } - } - else - { - /* Sanity check the address. */ - if (offset > high_address) - { - r = bfd_reloc_outofrange; - goto check_reloc; - } - - switch ((int) r_type) - { - case R_M32R_GOTOFF: - /* Relocation is relative to the start of the global offset - table (for ld24 rx, #uimm24). eg access at label+addend - - ld24 rx. #label@GOTOFF + addend - sub rx, r12. */ - - BFD_ASSERT (sgot != NULL); - - relocation = -(relocation - sgot->output_section->vma); - rel->r_addend = -rel->r_addend; - break; - - case R_M32R_GOTOFF_HI_ULO: - case R_M32R_GOTOFF_HI_SLO: - case R_M32R_GOTOFF_LO: - BFD_ASSERT (sgot != NULL); - - relocation -= sgot->output_section->vma; - - if ((r_type == R_M32R_GOTOFF_HI_SLO) - && ((relocation + rel->r_addend) & 0x8000)) - rel->r_addend += 0x10000; - break; - - case R_M32R_GOTPC24: - /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation - ld24 rx,#_GLOBAL_OFFSET_TABLE_ - */ - relocation = sgot->output_section->vma; - break; - - case R_M32R_GOTPC_HI_ULO: - case R_M32R_GOTPC_HI_SLO: - case R_M32R_GOTPC_LO: - { - /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation - bl .+4 - seth rx,#high(_GLOBAL_OFFSET_TABLE_) - or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) - or - bl .+4 - seth rx,#shigh(_GLOBAL_OFFSET_TABLE_) - add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) - */ - relocation = sgot->output_section->vma; - relocation -= (input_section->output_section->vma - + input_section->output_offset - + rel->r_offset); - if ((r_type == R_M32R_GOTPC_HI_SLO) - && ((relocation + rel->r_addend) & 0x8000)) - rel->r_addend += 0x10000; - - break; - } - case R_M32R_GOT16_HI_ULO: - case R_M32R_GOT16_HI_SLO: - case R_M32R_GOT16_LO: - /* Fall through. */ - case R_M32R_GOT24: - /* Relocation is to the entry for this symbol in the global - offset table. */ - BFD_ASSERT (sgot != NULL); - - if (h != NULL) - { - bfd_boolean dyn; - bfd_vma off; - - off = h->got.offset; - BFD_ASSERT (off != (bfd_vma) -1); - - dyn = htab->root.dynamic_sections_created; - if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) - || (info->shared - && (info->symbolic - || h->dynindx == -1 - || h->forced_local) - && h->def_regular)) - { - /* This is actually a static link, or it is a - -Bsymbolic link and the symbol is defined - locally, or the symbol was forced to be local - because of a version file. We must initialize - this entry in the global offset table. Since the - offset must always be a multiple of 4, we use the - least significant bit to record whether we have - initialized it already. - - When doing a dynamic link, we create a .rela.got - relocation entry to initialize the value. This - is done in the finish_dynamic_symbol routine. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, - sgot->contents + off); - h->got.offset |= 1; - } - } - - relocation = sgot->output_offset + off; - } - else - { - bfd_vma off; - bfd_byte *loc; - - BFD_ASSERT (local_got_offsets != NULL - && local_got_offsets[r_symndx] != (bfd_vma) -1); - - off = local_got_offsets[r_symndx]; - - /* The offset must always be a multiple of 4. We use - the least significant bit to record whether we have - already processed this entry. */ - if ((off & 1) != 0) - off &= ~1; - else - { - bfd_put_32 (output_bfd, relocation, sgot->contents + off); - - if (info->shared) - { - asection *srelgot; - Elf_Internal_Rela outrel; - - /* We need to generate a R_M32R_RELATIVE reloc - for the dynamic linker. */ - srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); - BFD_ASSERT (srelgot != NULL); - - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + off); - outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); - outrel.r_addend = relocation; - loc = srelgot->contents; - loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); - ++srelgot->reloc_count; - } - - local_got_offsets[r_symndx] |= 1; - } - - relocation = sgot->output_offset + off; - } - if ((r_type == R_M32R_GOT16_HI_SLO) - && ((relocation + rel->r_addend) & 0x8000)) - rel->r_addend += 0x10000; - - break; - - case R_M32R_26_PLTREL: - /* Relocation is to the entry for this symbol in the - procedure linkage table. */ - - /* The native assembler will generate a 26_PLTREL reloc - for a local symbol if you assemble a call from one - section to another when using -K pic. */ - if (h == NULL) - break; - - if (h->forced_local) - break; - - if (h->plt.offset == (bfd_vma) -1) - /* We didn't make a PLT entry for this symbol. This - happens when statically linking PIC code, or when - using -Bsymbolic. */ - break; - - relocation = (splt->output_section->vma - + splt->output_offset - + h->plt.offset); - break; - - case R_M32R_HI16_SLO_RELA: - if ((relocation + rel->r_addend) & 0x8000) - rel->r_addend += 0x10000; - /* Fall through. */ - - case R_M32R_16_RELA: - case R_M32R_24_RELA: - case R_M32R_32_RELA: - case R_M32R_REL32: - case R_M32R_10_PCREL_RELA: - case R_M32R_18_PCREL_RELA: - case R_M32R_26_PCREL_RELA: - case R_M32R_HI16_ULO_RELA: - case R_M32R_LO16_RELA: - if (info->shared - && r_symndx != 0 - && (input_section->flags & SEC_ALLOC) != 0 - && (( r_type != R_M32R_10_PCREL_RELA - && r_type != R_M32R_18_PCREL_RELA - && r_type != R_M32R_26_PCREL_RELA - && r_type != R_M32R_REL32) - || (h != NULL - && h->dynindx != -1 - && (! info->symbolic - || !h->def_regular)))) - { - Elf_Internal_Rela outrel; - bfd_boolean skip, relocate; - bfd_byte *loc; - - /* When generating a shared object, these relocations - are copied into the output file to be resolved at run - time. */ - if (sreloc == NULL) - { - const char *name; - - name = (bfd_elf_string_from_elf_section - (input_bfd, - elf_elfheader (input_bfd)->e_shstrndx, - elf_section_data (input_section)->rel_hdr.sh_name)); - if (name == NULL) - return FALSE; - - BFD_ASSERT (CONST_STRNEQ (name, ".rela") - && strcmp (bfd_get_section_name (input_bfd, - input_section), - name + 5) == 0); - - sreloc = bfd_get_section_by_name (dynobj, name); - BFD_ASSERT (sreloc != NULL); - } - - skip = FALSE; - relocate = FALSE; - - outrel.r_offset = _bfd_elf_section_offset (output_bfd, - info, - input_section, - rel->r_offset); - if (outrel.r_offset == (bfd_vma) -1) - skip = TRUE; - else if (outrel.r_offset == (bfd_vma) -2) - skip = relocate = TRUE; - outrel.r_offset += (input_section->output_section->vma - + input_section->output_offset); - - if (skip) - memset (&outrel, 0, sizeof outrel); - else if ( r_type == R_M32R_10_PCREL_RELA - || r_type == R_M32R_18_PCREL_RELA - || r_type == R_M32R_26_PCREL_RELA - || r_type == R_M32R_REL32) - { - BFD_ASSERT (h != NULL && h->dynindx != -1); - outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); - outrel.r_addend = rel->r_addend; - } - else - { - /* h->dynindx may be -1 if this symbol was marked to - become local. */ - if (h == NULL - || ((info->symbolic || h->dynindx == -1) - && h->def_regular)) - { - relocate = TRUE; - outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); - outrel.r_addend = relocation + rel->r_addend; - } - else - { - BFD_ASSERT (h->dynindx != -1); - outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); - outrel.r_addend = relocation + rel->r_addend; - } - } - - loc = sreloc->contents; - loc += sreloc->reloc_count * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); - ++sreloc->reloc_count; - - /* If this reloc is against an external symbol, we do - not want to fiddle with the addend. Otherwise, we - need to include the symbol value so that it becomes - an addend for the dynamic reloc. */ - if (! relocate) - continue; - break; - } - else if (r_type != R_M32R_10_PCREL_RELA) - break; - /* Fall through. */ - - case (int) R_M32R_10_PCREL : - r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section, - contents, offset, - sec, relocation, addend); - goto check_reloc; - - case (int) R_M32R_HI16_SLO : - case (int) R_M32R_HI16_ULO : - { - Elf_Internal_Rela *lorel; - - /* We allow an arbitrary number of HI16 relocs before the - LO16 reloc. This permits gcc to emit the HI and LO relocs - itself. */ - for (lorel = rel + 1; - (lorel < relend - && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO - || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO)); - lorel++) - continue; - if (lorel < relend - && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16) - { - m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel, - contents, relocation + addend); - r = bfd_reloc_ok; - } - else - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, offset, - relocation, addend); - } - - goto check_reloc; - - case (int) R_M32R_SDA16_RELA: - case (int) R_M32R_SDA16 : - { - const char *name; - - BFD_ASSERT (sec != NULL); - name = bfd_get_section_name (abfd, sec); - - if ( strcmp (name, ".sdata") == 0 - || strcmp (name, ".sbss") == 0 - || strcmp (name, ".scommon") == 0) - { - bfd_vma sda_base; - bfd *out_bfd = sec->output_section->owner; - - r = m32r_elf_final_sda_base (out_bfd, info, - &errmsg, - &sda_base); - if (r != bfd_reloc_ok) - { - ret = FALSE; - goto check_reloc; - } - - /* At this point `relocation' contains the object's - address. */ - relocation -= sda_base; - /* Now it contains the offset from _SDA_BASE_. */ - } - else - { - (*_bfd_error_handler) - (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"), - input_bfd, - sec, - sym_name, - m32r_elf_howto_table[(int) r_type].name); - /*bfd_set_error (bfd_error_bad_value); ??? why? */ - ret = FALSE; - continue; - } - } - /* Fall through. */ - - default : /* OLD_M32R_RELOC */ - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, offset, - relocation, addend); - goto check_reloc; - } - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - - } - - check_reloc: - - if (r != bfd_reloc_ok) - { - /* FIXME: This should be generic enough to go in a utility. */ - const char *name; - - if (h != NULL) - name = h->root.root.string; - else - { - name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name)); - if (name == NULL || *name == '\0') - name = bfd_section_name (input_bfd, sec); - } - - if (errmsg != NULL) - goto common_error; - - switch (r) - { - case bfd_reloc_overflow: - if (! ((*info->callbacks->reloc_overflow) - (info, (h ? &h->root : NULL), name, howto->name, - (bfd_vma) 0, input_bfd, input_section, offset))) - return FALSE; - break; - - case bfd_reloc_undefined: - if (! ((*info->callbacks->undefined_symbol) - (info, name, input_bfd, input_section, - offset, TRUE))) - return FALSE; - break; - - case bfd_reloc_outofrange: - errmsg = _("internal error: out of range error"); - goto common_error; - - case bfd_reloc_notsupported: - errmsg = _("internal error: unsupported relocation error"); - goto common_error; - - case bfd_reloc_dangerous: - errmsg = _("internal error: dangerous error"); - goto common_error; - - default: - errmsg = _("internal error: unknown error"); - /* fall through */ - - common_error: - if (!((*info->callbacks->warning) - (info, errmsg, name, input_bfd, input_section, - offset))) - return FALSE; - break; - } - } - } - - return ret; -} - -/* Finish up dynamic symbol handling. We set the contents of various - dynamic sections here. */ - -static bfd_boolean -m32r_elf_finish_dynamic_symbol (bfd *output_bfd, - struct bfd_link_info *info, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - struct elf_m32r_link_hash_table *htab; - bfd *dynobj; - bfd_byte *loc; - -#ifdef DEBUG_PIC - printf ("m32r_elf_finish_dynamic_symbol()\n"); -#endif - - htab = m32r_elf_hash_table (info); - dynobj = htab->root.dynobj; - - if (h->plt.offset != (bfd_vma) -1) - { - asection *splt; - asection *sgot; - asection *srela; - - bfd_vma plt_index; - bfd_vma got_offset; - Elf_Internal_Rela rela; - - /* This symbol has an entry in the procedure linkage table. Set - it up. */ - - BFD_ASSERT (h->dynindx != -1); - - splt = htab->splt; - sgot = htab->sgotplt; - srela = htab->srelplt; - BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); - - /* Get the index in the procedure linkage table which - corresponds to this symbol. This is the index of this symbol - in all the symbols for which we are making plt entries. The - first entry in the procedure linkage table is reserved. */ - plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; - - /* Get the offset into the .got table of the entry that - corresponds to this function. Each .got entry is 4 bytes. - The first three are reserved. */ - got_offset = (plt_index + 3) * 4; - - /* Fill in the entry in the procedure linkage table. */ - if (! info->shared) - { - bfd_put_32 (output_bfd, - (PLT_ENTRY_WORD0b - + (((sgot->output_section->vma - + sgot->output_offset - + got_offset) >> 16) & 0xffff)), - splt->contents + h->plt.offset); - bfd_put_32 (output_bfd, - (PLT_ENTRY_WORD1b - + ((sgot->output_section->vma - + sgot->output_offset - + got_offset) & 0xffff)), - splt->contents + h->plt.offset + 4); - bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, - splt->contents + h->plt.offset + 8); - bfd_put_32 (output_bfd, - (PLT_ENTRY_WORD3 - + plt_index * sizeof (Elf32_External_Rela)), - splt->contents + h->plt.offset + 12); - bfd_put_32 (output_bfd, - (PLT_ENTRY_WORD4 - + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)), - splt->contents + h->plt.offset + 16); - } - else - { - bfd_put_32 (output_bfd, - PLT_ENTRY_WORD0 + got_offset, - splt->contents + h->plt.offset); - bfd_put_32 (output_bfd, PLT_ENTRY_WORD1, - splt->contents + h->plt.offset + 4); - bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, - splt->contents + h->plt.offset + 8); - bfd_put_32 (output_bfd, - (PLT_ENTRY_WORD3 - + plt_index * sizeof (Elf32_External_Rela)), - splt->contents + h->plt.offset + 12); - bfd_put_32 (output_bfd, - (PLT_ENTRY_WORD4 - + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)), - splt->contents + h->plt.offset + 16); - } - - /* Fill in the entry in the global offset table. */ - bfd_put_32 (output_bfd, - (splt->output_section->vma - + splt->output_offset - + h->plt.offset - + 12), /* same offset */ - sgot->contents + got_offset); - - /* Fill in the entry in the .rela.plt section. */ - rela.r_offset = (sgot->output_section->vma - + sgot->output_offset - + got_offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT); - rela.r_addend = 0; - loc = srela->contents; - loc += plt_index * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - - if (!h->def_regular) - { - /* Mark the symbol as undefined, rather than as defined in - the .plt section. Leave the value alone. */ - sym->st_shndx = SHN_UNDEF; - } - } - - if (h->got.offset != (bfd_vma) -1) - { - asection *sgot; - asection *srela; - Elf_Internal_Rela rela; - - /* This symbol has an entry in the global offset table. Set it - up. */ - - sgot = htab->sgot; - srela = htab->srelgot; - BFD_ASSERT (sgot != NULL && srela != NULL); - - rela.r_offset = (sgot->output_section->vma - + sgot->output_offset - + (h->got.offset &~ 1)); - - /* If this is a -Bsymbolic link, and the symbol is defined - locally, we just want to emit a RELATIVE reloc. Likewise if - the symbol was forced to be local because of a version file. - The entry in the global offset table will already have been - initialized in the relocate_section function. */ - if (info->shared - && (info->symbolic - || h->dynindx == -1 - || h->forced_local) - && h->def_regular) - { - rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); - rela.r_addend = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - } - else - { - BFD_ASSERT ((h->got.offset & 1) == 0); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT); - rela.r_addend = 0; - } - - loc = srela->contents; - loc += srela->reloc_count * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - ++srela->reloc_count; - } - - if (h->needs_copy) - { - asection *s; - Elf_Internal_Rela rela; - - /* This symbols needs a copy reloc. Set it up. */ - - BFD_ASSERT (h->dynindx != -1 - && (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak)); - - s = bfd_get_section_by_name (h->root.u.def.section->owner, - ".rela.bss"); - BFD_ASSERT (s != NULL); - - rela.r_offset = (h->root.u.def.value - + h->root.u.def.section->output_section->vma - + h->root.u.def.section->output_offset); - rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY); - rela.r_addend = 0; - loc = s->contents; - loc += s->reloc_count * sizeof (Elf32_External_Rela); - bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); - ++s->reloc_count; - } - - /* Mark some specially defined symbols as absolute. */ - if (strcmp (h->root.root.string, "_DYNAMIC") == 0 - || h == htab->root.hgot) - sym->st_shndx = SHN_ABS; - - return TRUE; -} - - -/* Finish up the dynamic sections. */ - -static bfd_boolean -m32r_elf_finish_dynamic_sections (bfd *output_bfd, - struct bfd_link_info *info) -{ - struct elf_m32r_link_hash_table *htab; - bfd *dynobj; - asection *sdyn; - asection *sgot; - -#ifdef DEBUG_PIC - printf ("m32r_elf_finish_dynamic_sections()\n"); -#endif - - htab = m32r_elf_hash_table (info); - dynobj = htab->root.dynobj; - - sgot = htab->sgotplt; - sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); - - if (htab->root.dynamic_sections_created) - { - asection *splt; - Elf32_External_Dyn *dyncon, *dynconend; - - BFD_ASSERT (sgot != NULL && sdyn != NULL); - - dyncon = (Elf32_External_Dyn *) sdyn->contents; - dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); - - for (; dyncon < dynconend; dyncon++) - { - Elf_Internal_Dyn dyn; - const char *name; - asection *s; - - bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); - - switch (dyn.d_tag) - { - default: - break; - - case DT_PLTGOT: - name = ".got"; - s = htab->sgot->output_section; - goto get_vma; - case DT_JMPREL: - name = ".rela.plt"; - s = htab->srelplt->output_section; - get_vma: - BFD_ASSERT (s != NULL); - dyn.d_un.d_ptr = s->vma; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_PLTRELSZ: - s = htab->srelplt->output_section; - BFD_ASSERT (s != NULL); - dyn.d_un.d_val = s->size; - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - - case DT_RELASZ: - /* My reading of the SVR4 ABI indicates that the - procedure linkage table relocs (DT_JMPREL) should be - included in the overall relocs (DT_RELA). This is - what Solaris does. However, UnixWare can not handle - that case. Therefore, we override the DT_RELASZ entry - here to make it not include the JMPREL relocs. Since - the linker script arranges for .rela.plt to follow all - other relocation sections, we don't have to worry - about changing the DT_RELA entry. */ - if (htab->srelplt != NULL) - { - s = htab->srelplt->output_section; - dyn.d_un.d_val -= s->size; - } - bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); - break; - } - } - - /* Fill in the first entry in the procedure linkage table. */ - splt = htab->splt; - if (splt && splt->size > 0) - { - if (info->shared) - { - bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents); - bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4); - bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8); - bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12); - bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16); - } - else - { - unsigned long addr; - /* addr = .got + 4 */ - addr = sgot->output_section->vma + sgot->output_offset + 4; - bfd_put_32 (output_bfd, - PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), - splt->contents); - bfd_put_32 (output_bfd, - PLT0_ENTRY_WORD1 | (addr & 0xffff), - splt->contents + 4); - bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); - bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); - bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); - } - - elf_section_data (splt->output_section)->this_hdr.sh_entsize = - PLT_ENTRY_SIZE; - } - } - - /* Fill in the first three entries in the global offset table. */ - if (sgot && sgot->size > 0) - { - if (sdyn == NULL) - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); - else - bfd_put_32 (output_bfd, - sdyn->output_section->vma + sdyn->output_offset, - sgot->contents); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); - bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); - - elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; - } - - return TRUE; -} - - -/* Set the right machine number. */ - -static bfd_boolean -m32r_elf_object_p (bfd *abfd) -{ - switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH) - { - default: - case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break; - case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break; - case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break; - } - return TRUE; -} - -/* Store the machine number in the flags field. */ - -static void -m32r_elf_final_write_processing (bfd *abfd, - bfd_boolean linker ATTRIBUTE_UNUSED) -{ - unsigned long val; - - switch (bfd_get_mach (abfd)) - { - default: - case bfd_mach_m32r: val = E_M32R_ARCH; break; - case bfd_mach_m32rx: val = E_M32RX_ARCH; break; - case bfd_mach_m32r2: val = E_M32R2_ARCH; break; - } - - elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH; - elf_elfheader (abfd)->e_flags |= val; -} - -/* Function to keep M32R specific file flags. */ - -static bfd_boolean -m32r_elf_set_private_flags (bfd *abfd, flagword flags) -{ - BFD_ASSERT (!elf_flags_init (abfd) - || elf_elfheader (abfd)->e_flags == flags); - - elf_elfheader (abfd)->e_flags = flags; - elf_flags_init (abfd) = TRUE; - return TRUE; -} - -/* Merge backend specific data from an object file to the output - object file when linking. */ - -static bfd_boolean -m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) -{ - flagword out_flags; - flagword in_flags; - - if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour - || bfd_get_flavour (obfd) != bfd_target_elf_flavour) - return TRUE; - - in_flags = elf_elfheader (ibfd)->e_flags; - out_flags = elf_elfheader (obfd)->e_flags; - - if (! elf_flags_init (obfd)) - { - /* If the input is the default architecture then do not - bother setting the flags for the output architecture, - instead allow future merges to do this. If no future - merges ever set these flags then they will retain their - unitialised values, which surprise surprise, correspond - to the default values. */ - if (bfd_get_arch_info (ibfd)->the_default) - return TRUE; - - elf_flags_init (obfd) = TRUE; - elf_elfheader (obfd)->e_flags = in_flags; - - if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) - && bfd_get_arch_info (obfd)->the_default) - return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), - bfd_get_mach (ibfd)); - - return TRUE; - } - - /* Check flag compatibility. */ - if (in_flags == out_flags) - return TRUE; - - if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH)) - { - if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH) - || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH) - || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH)) - { - (*_bfd_error_handler) - (_("%B: Instruction set mismatch with previous modules"), ibfd); - - bfd_set_error (bfd_error_bad_value); - return FALSE; - } - } - - return TRUE; -} - -/* Display the flags field. */ - -static bfd_boolean -m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr) -{ - FILE * file = (FILE *) ptr; - - BFD_ASSERT (abfd != NULL && ptr != NULL); - - _bfd_elf_print_private_bfd_data (abfd, ptr); - - fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags); - - switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH) - { - default: - case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break; - case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break; - case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break; - } - - fputc ('\n', file); - - return TRUE; -} - -static asection * -m32r_elf_gc_mark_hook (asection *sec, - struct bfd_link_info *info, - Elf_Internal_Rela *rel, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - if (h != NULL) - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_M32R_GNU_VTINHERIT: - case R_M32R_GNU_VTENTRY: - case R_M32R_RELA_GNU_VTINHERIT: - case R_M32R_RELA_GNU_VTENTRY: - return NULL; - } - - return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); -} - -static bfd_boolean -m32r_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) -{ - /* Update the got entry reference counts for the section being removed. */ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - bfd_signed_vma *local_got_refcounts; - const Elf_Internal_Rela *rel, *relend; - - if (info->relocatable) - return TRUE; - - elf_section_data (sec)->local_dynrel = NULL; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - local_got_refcounts = elf_local_got_refcounts (abfd); - - relend = relocs + sec->reloc_count; - for (rel = relocs; rel < relend; rel++) - { - unsigned long r_symndx; - struct elf_link_hash_entry *h = NULL; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - } - - switch (ELF32_R_TYPE (rel->r_info)) - { - case R_M32R_GOT16_HI_ULO: - case R_M32R_GOT16_HI_SLO: - case R_M32R_GOT16_LO: - case R_M32R_GOTOFF: - case R_M32R_GOTOFF_HI_ULO: - case R_M32R_GOTOFF_HI_SLO: - case R_M32R_GOTOFF_LO: - case R_M32R_GOT24: - case R_M32R_GOTPC_HI_ULO: - case R_M32R_GOTPC_HI_SLO: - case R_M32R_GOTPC_LO: - case R_M32R_GOTPC24: - if (h != NULL) - { - if (h->got.refcount > 0) - h->got.refcount--; - } - else - { - if (local_got_refcounts && local_got_refcounts[r_symndx] > 0) - local_got_refcounts[r_symndx]--; - } - break; - - case R_M32R_16_RELA: - case R_M32R_24_RELA: - case R_M32R_32_RELA: - case R_M32R_REL32: - case R_M32R_HI16_ULO_RELA: - case R_M32R_HI16_SLO_RELA: - case R_M32R_LO16_RELA: - case R_M32R_SDA16_RELA: - case R_M32R_10_PCREL_RELA: - case R_M32R_18_PCREL_RELA: - case R_M32R_26_PCREL_RELA: - if (h != NULL) - { - struct elf_m32r_link_hash_entry *eh; - struct elf_m32r_dyn_relocs **pp; - struct elf_m32r_dyn_relocs *p; - - if (!info->shared && h->plt.refcount > 0) - h->plt.refcount -= 1; - - eh = (struct elf_m32r_link_hash_entry *) h; - - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) - if (p->sec == sec) - { - if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA - || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA - || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA - || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32) - p->pc_count -= 1; - p->count -= 1; - if (p->count == 0) - *pp = p->next; - break; - } - } - break; - - case R_M32R_26_PLTREL: - if (h != NULL) - { - if (h->plt.refcount > 0) - h->plt.refcount--; - } - break; - - default: - break; - } - } - - return TRUE; -} - -/* Look through the relocs for a section during the first phase. - Since we don't do .gots or .plts, we just need to consider the - virtual table relocs for gc. */ - -static bfd_boolean -m32r_elf_check_relocs (bfd *abfd, - struct bfd_link_info *info, - asection *sec, - const Elf_Internal_Rela *relocs) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - struct elf_m32r_link_hash_table *htab; - bfd *dynobj; - bfd_vma *local_got_offsets; - asection *sgot, *srelgot, *sreloc; - - if (info->relocatable) - return TRUE; - - sgot = srelgot = sreloc = NULL; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - - htab = m32r_elf_hash_table (info); - dynobj = htab->root.dynobj; - local_got_offsets = elf_local_got_offsets (abfd); - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - int r_type; - struct elf_link_hash_entry *h; - unsigned long r_symndx; - - r_symndx = ELF32_R_SYM (rel->r_info); - r_type = ELF32_R_TYPE (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - h = NULL; - else - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - while (h->root.type == bfd_link_hash_indirect - || h->root.type == bfd_link_hash_warning) - h = (struct elf_link_hash_entry *) h->root.u.i.link; - } - - /* Some relocs require a global offset table. */ - if (htab->sgot == NULL) - { - switch (r_type) - { - case R_M32R_GOT16_HI_ULO: - case R_M32R_GOT16_HI_SLO: - case R_M32R_GOTOFF: - case R_M32R_GOTOFF_HI_ULO: - case R_M32R_GOTOFF_HI_SLO: - case R_M32R_GOTOFF_LO: - case R_M32R_GOT16_LO: - case R_M32R_GOTPC24: - case R_M32R_GOTPC_HI_ULO: - case R_M32R_GOTPC_HI_SLO: - case R_M32R_GOTPC_LO: - case R_M32R_GOT24: - if (dynobj == NULL) - htab->root.dynobj = dynobj = abfd; - if (! create_got_section (dynobj, info)) - return FALSE; - break; - - default: - break; - } - } - - switch (r_type) - { - case R_M32R_GOT16_HI_ULO: - case R_M32R_GOT16_HI_SLO: - case R_M32R_GOT16_LO: - case R_M32R_GOT24: - - if (h != NULL) - h->got.refcount += 1; - else - { - bfd_signed_vma *local_got_refcounts; - - /* This is a global offset table entry for a local - symbol. */ - local_got_refcounts = elf_local_got_refcounts (abfd); - if (local_got_refcounts == NULL) - { - bfd_size_type size; - - size = symtab_hdr->sh_info; - size *= sizeof (bfd_signed_vma); - local_got_refcounts = bfd_zalloc (abfd, size); - if (local_got_refcounts == NULL) - return FALSE; - elf_local_got_refcounts (abfd) = local_got_refcounts; - } - local_got_refcounts[r_symndx] += 1; - } - break; - - case R_M32R_26_PLTREL: - /* This symbol requires a procedure linkage table entry. We - actually build the entry in adjust_dynamic_symbol, - because this might be a case of linking PIC code without - linking in any dynamic objects, in which case we don't - need to generate a procedure linkage table after all. */ - - /* If this is a local symbol, we resolve it directly without - creating a procedure linkage table entry. */ - if (h == NULL) - continue; - - if (h->forced_local) - break; - - h->needs_plt = 1; - h->plt.refcount += 1; - break; - - case R_M32R_16_RELA: - case R_M32R_24_RELA: - case R_M32R_32_RELA: - case R_M32R_REL32: - case R_M32R_HI16_ULO_RELA: - case R_M32R_HI16_SLO_RELA: - case R_M32R_LO16_RELA: - case R_M32R_SDA16_RELA: - case R_M32R_10_PCREL_RELA: - case R_M32R_18_PCREL_RELA: - case R_M32R_26_PCREL_RELA: - - if (h != NULL && !info->shared) - { - h->non_got_ref = 1; - h->plt.refcount += 1; - } - - /* If we are creating a shared library, and this is a reloc - against a global symbol, or a non PC relative reloc - against a local symbol, then we need to copy the reloc - into the shared library. However, if we are linking with - -Bsymbolic, we do not need to copy a reloc against a - global symbol which is defined in an object we are - including in the link (i.e., DEF_REGULAR is set). At - this point we have not seen all the input files, so it is - possible that DEF_REGULAR is not set now but will be set - later (it is never cleared). We account for that - possibility below by storing information in the - dyn_relocs field of the hash table entry. A similar - situation occurs when creating shared libraries and symbol - visibility changes render the symbol local. - - If on the other hand, we are creating an executable, we - may need to keep relocations for symbols satisfied by a - dynamic library if we manage to avoid copy relocs for the - symbol. */ - if ((info->shared - && (sec->flags & SEC_ALLOC) != 0 - && (( r_type != R_M32R_26_PCREL_RELA - && r_type != R_M32R_18_PCREL_RELA - && r_type != R_M32R_10_PCREL_RELA - && r_type != R_M32R_REL32) - || (h != NULL - && (! info->symbolic - || h->root.type == bfd_link_hash_defweak - || !h->def_regular)))) - || (!info->shared - && (sec->flags & SEC_ALLOC) != 0 - && h != NULL - && (h->root.type == bfd_link_hash_defweak - || !h->def_regular))) - { - struct elf_m32r_dyn_relocs *p; - struct elf_m32r_dyn_relocs **head; - - if (dynobj == NULL) - htab->root.dynobj = dynobj = abfd; - - /* When creating a shared object, we must copy these - relocs into the output file. We create a reloc - section in dynobj and make room for the reloc. */ - if (sreloc == NULL) - { - const char *name; - - name = (bfd_elf_string_from_elf_section - (abfd, - elf_elfheader (abfd)->e_shstrndx, - elf_section_data (sec)->rel_hdr.sh_name)); - if (name == NULL) - return FALSE; - - BFD_ASSERT (CONST_STRNEQ (name, ".rela") - && strcmp (bfd_get_section_name (abfd, sec), - name + 5) == 0); - - sreloc = bfd_get_section_by_name (dynobj, name); - if (sreloc == NULL) - { - flagword flags; - - flags = (SEC_HAS_CONTENTS | SEC_READONLY - | SEC_IN_MEMORY | SEC_LINKER_CREATED); - if ((sec->flags & SEC_ALLOC) != 0) - flags |= SEC_ALLOC | SEC_LOAD; - sreloc = bfd_make_section_with_flags (dynobj, - name, - flags); - if (sreloc == NULL - || ! bfd_set_section_alignment (dynobj, sreloc, 2)) - return FALSE; - } - elf_section_data (sec)->sreloc = sreloc; - } - - /* If this is a global symbol, we count the number of - relocations we need for this symbol. */ - if (h != NULL) - head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs; - else - { - asection *s; - void *vpp; - - /* Track dynamic relocs needed for local syms too. */ - s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, - sec, r_symndx); - if (s == NULL) - return FALSE; - - vpp = &elf_section_data (s)->local_dynrel; - head = (struct elf_m32r_dyn_relocs **) vpp; - } - - p = *head; - if (p == NULL || p->sec != sec) - { - bfd_size_type amt = sizeof (*p); - - p = bfd_alloc (dynobj, amt); - if (p == NULL) - return FALSE; - p->next = *head; - *head = p; - p->sec = sec; - p->count = 0; - p->pc_count = 0; - } - - p->count += 1; - if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA - || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA - || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA - || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32) - p->pc_count += 1; - } - break; - - /* This relocation describes the C++ object vtable hierarchy. - Reconstruct it for later use during GC. */ - case R_M32R_RELA_GNU_VTINHERIT: - case R_M32R_GNU_VTINHERIT: - if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) - return FALSE; - break; - - /* This relocation describes which C++ vtable entries are actually - used. Record for later use during GC. */ - case R_M32R_GNU_VTENTRY: - BFD_ASSERT (h != NULL); - if (h != NULL - && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) - return FALSE; - break; - case R_M32R_RELA_GNU_VTENTRY: - BFD_ASSERT (h != NULL); - if (h != NULL - && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) - return FALSE; - break; - } - } - - return TRUE; -} - -static const struct bfd_elf_special_section m32r_elf_special_sections[] = -{ - { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, - { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, - { NULL, 0, 0, 0, 0 } -}; - -static bfd_boolean -m32r_elf_fake_sections (bfd *abfd, - Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED, - asection *sec) -{ - const char *name; - - name = bfd_get_section_name (abfd, sec); - - /* The generic elf_fake_sections will set up REL_HDR using the - default kind of relocations. But, we may actually need both - kinds of relocations, so we set up the second header here. - - This is not necessary for the O32 ABI since that only uses Elf32_Rel - relocations (cf. System V ABI, MIPS RISC Processor Supplement, - 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one - of the resulting empty .rela.<section> sections starts with - sh_offset == object size, and ld doesn't allow that. While the check - is arguably bogus for empty or SHT_NOBITS sections, it can easily be - avoided by not emitting those useless sections in the first place. */ - if ((sec->flags & SEC_RELOC) != 0) - { - struct bfd_elf_section_data *esd; - bfd_size_type amt = sizeof (Elf_Internal_Shdr); - - esd = elf_section_data (sec); - BFD_ASSERT (esd->rel_hdr2 == NULL); - esd->rel_hdr2 = bfd_zalloc (abfd, amt); - if (!esd->rel_hdr2) - return FALSE; - _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec, - !sec->use_rela_p); - } - - return TRUE; -} - -static enum elf_reloc_type_class -m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela) -{ - switch ((int) ELF32_R_TYPE (rela->r_info)) - { - case R_M32R_RELATIVE: return reloc_class_relative; - case R_M32R_JMP_SLOT: return reloc_class_plt; - case R_M32R_COPY: return reloc_class_copy; - default: return reloc_class_normal; - } -} - -#define ELF_ARCH bfd_arch_m32r -#define ELF_MACHINE_CODE EM_M32R -#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R -#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */ - -#define TARGET_BIG_SYM bfd_elf32_m32r_vec -#define TARGET_BIG_NAME "elf32-m32r" -#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec -#define TARGET_LITTLE_NAME "elf32-m32rle" - -#define elf_info_to_howto m32r_info_to_howto -#define elf_info_to_howto_rel m32r_info_to_howto_rel -#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section -#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing -#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook -#define elf_backend_relocate_section m32r_elf_relocate_section -#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook -#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook -#define elf_backend_check_relocs m32r_elf_check_relocs - -#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections -#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create -#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections -#define elf_backend_omit_section_dynsym \ - ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) -#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections -#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol -#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol -#define elf_backend_reloc_type_class m32r_elf_reloc_type_class -#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol - -#define elf_backend_can_gc_sections 1 -/*#if !USE_REL -#define elf_backend_rela_normal 1 -#endif*/ -#define elf_backend_can_refcount 1 -#define elf_backend_want_got_plt 1 -#define elf_backend_plt_readonly 1 -#define elf_backend_want_plt_sym 0 -#define elf_backend_got_header_size 12 - -#define elf_backend_may_use_rel_p 1 -#ifdef USE_M32R_OLD_RELOC -#define elf_backend_default_use_rela_p 0 -#define elf_backend_may_use_rela_p 0 -#else -#define elf_backend_default_use_rela_p 1 -#define elf_backend_may_use_rela_p 1 -#define elf_backend_fake_sections m32r_elf_fake_sections -#endif - -#define elf_backend_object_p m32r_elf_object_p -#define elf_backend_final_write_processing m32r_elf_final_write_processing -#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data -#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags -#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data -#define elf_backend_special_sections m32r_elf_special_sections - -#include "elf32-target.h" - -#undef ELF_MAXPAGESIZE -#define ELF_MAXPAGESIZE 0x1000 - -#undef TARGET_BIG_SYM -#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec -#undef TARGET_BIG_NAME -#define TARGET_BIG_NAME "elf32-m32r-linux" -#undef TARGET_LITTLE_SYM -#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec -#undef TARGET_LITTLE_NAME -#define TARGET_LITTLE_NAME "elf32-m32rle-linux" -#undef elf32_bed -#define elf32_bed elf32_m32r_lin_bed - -#include "elf32-target.h" - |