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Diffstat (limited to 'bfd/coff-maxq.c')
| -rw-r--r-- | bfd/coff-maxq.c | 447 |
1 files changed, 0 insertions, 447 deletions
diff --git a/bfd/coff-maxq.c b/bfd/coff-maxq.c deleted file mode 100644 index 94d5237..0000000 --- a/bfd/coff-maxq.c +++ /dev/null @@ -1,447 +0,0 @@ -/* BFD back-end for MAXQ COFF binaries. - Copyright 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. - - Contributed by Vineet Sharma (vineets@noida.hcltech.com) Inderpreet S. - (inderpreetb@noida.hcltech.com) - - HCL Technologies Ltd. - - 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 "coff/maxq.h" -#include "coff/internal.h" -#include "libcoff.h" -#include "libiberty.h" - -#ifndef MAXQ20 -#define MAXQ20 1 -#endif - -#define RTYPE2HOWTO(cache_ptr, dst) \ - ((cache_ptr)->howto = \ - ((dst)->r_type < 48 \ - ? howto_table + (((dst)->r_type==47) ? 6: ((dst)->r_type)) \ - : NULL)) - -#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) - -/* Code to swap in the reloc offset. */ -#define SWAP_IN_RELOC_OFFSET H_GET_16 -#define SWAP_OUT_RELOC_OFFSET H_PUT_16 - -#define SHORT_JUMP BFD_RELOC_16_PCREL_S2 -#define LONG_JUMP BFD_RELOC_14 -#define ABSOLUTE_ADDR_FOR_DATA BFD_RELOC_24 - -/* checks the range of short jump -127 to 128 */ -#define IS_SJUMP_RANGE(x) ((x > -128) && (x < 129)) -#define HIGH_WORD_MASK 0xff00 -#define LOW_WORD_MASK 0x00ff - -static long -get_symbol_value (asymbol *symbol) -{ - long relocation = 0; - - if (bfd_is_com_section (symbol->section)) - relocation = 0; - else - relocation = symbol->value + - symbol->section->output_section->vma + symbol->section->output_offset; - - return relocation; -} - -/* This function performs all the maxq relocations. - FIXME: The handling of the addend in the 'BFD_*' - relocations types. */ - -static bfd_reloc_status_type -coff_maxq20_reloc (bfd * abfd, - arelent * reloc_entry, - asymbol * symbol_in, - void * data, - asection * input_section ATTRIBUTE_UNUSED, - bfd * output_bfd ATTRIBUTE_UNUSED, - char ** error_message ATTRIBUTE_UNUSED) -{ - unsigned char *addr = NULL; - unsigned long x = 0; - long call_addr = 0; - short addend = 0; - long diff = 0; - - /* If this is an undefined symbol, return error. */ - if (symbol_in->section == &bfd_und_section - && (symbol_in->flags & BSF_WEAK) == 0) - return bfd_reloc_continue; - - if (data && reloc_entry) - { - addr = (unsigned char *) data + reloc_entry->address; - call_addr = call_addr - call_addr; - call_addr = get_symbol_value (symbol_in); - - /* Over here the value val stores the 8 bit/16 bit value. We will put a - check if we are moving a 16 bit immediate value into an 8 bit - register. In that case we will generate a Upper bytes into PFX[0] - and move the lower 8 bits as SRC. */ - - switch (reloc_entry->howto->type) - { - /* BFD_RELOC_16_PCREL_S2 47 Handles all the relative jumps and - calls Note: Every relative jump or call is in words. */ - case SHORT_JUMP: - /* Handle any addend. */ - addend = reloc_entry->addend; - - if (addend > call_addr || addend > 0) - call_addr = symbol_in->section->output_section->vma + addend; - else if (addend < call_addr && addend > 0) - call_addr = call_addr + addend; - else if (addend < 0) - call_addr = call_addr + addend; - - diff = ((call_addr << 1) - (reloc_entry->address << 1)); - - if (!IS_SJUMP_RANGE (diff)) - { - bfd_perror (_("Can't Make it a Short Jump")); - return bfd_reloc_outofrange; - } - - x = bfd_get_16 (abfd, addr); - - x = x & LOW_WORD_MASK; - x = x | (diff << 8); - bfd_put_16 (abfd, (bfd_vma) x, addr); - - return bfd_reloc_ok; - - case ABSOLUTE_ADDR_FOR_DATA: - case LONG_JUMP: - /* BFD_RELOC_14 Handles intersegment or long jumps which might be - from code to code or code to data segment jumps. Note: When this - fucntion is called by gas the section flags somehow do not - contain the info about the section type(CODE or DATA). Thus the - user needs to evoke the linker after assembling the files - because the Code-Code relocs are word aligned but code-data are - byte aligned. */ - addend = (reloc_entry->addend - reloc_entry->addend); - - /* Handle any addend. */ - addend = reloc_entry->addend; - - /* For relocation involving multiple file added becomes zero thus - this fails - check for zero added. In another case when we try - to add a stub to a file the addend shows the offset from the - start od this file. */ - addend = 0; - - if (!bfd_is_com_section (symbol_in->section) && - ((symbol_in->flags & BSF_OLD_COMMON) == 0)) - { - if (reloc_entry->addend > symbol_in->value) - addend = reloc_entry->addend - symbol_in->value; - - if ((reloc_entry->addend < symbol_in->value) - && (reloc_entry->addend != 0)) - addend = reloc_entry->addend - symbol_in->value; - - if (reloc_entry->addend == symbol_in->value) - addend = 0; - } - - if (bfd_is_com_section (symbol_in->section) || - ((symbol_in->flags & BSF_OLD_COMMON) != 0)) - addend = reloc_entry->addend; - - if (addend < 0 - && (call_addr < (long) (addend * (-1)))) - addend = 0; - - call_addr += addend; - - /* FIXME: This check does not work well with the assembler, - linker needs to be run always. */ - if ((symbol_in->section->flags & SEC_CODE) == SEC_CODE) - { - /* Convert it into words. */ - call_addr = call_addr >> 1; - - if (call_addr > 0xFFFF) /* Intersegment Jump. */ - { - bfd_perror (_("Exceeds Long Jump Range")); - return bfd_reloc_outofrange; - } - } - else - { - /* case ABSOLUTE_ADDR_FOR_DATA : Resolves any code-data - segemnt relocs. These are NOT word aligned. */ - - if (call_addr > 0xFFFF) /* Intersegment Jump. */ - { - bfd_perror (_("Absolute address Exceeds 16 bit Range")); - return bfd_reloc_outofrange; - } - } - - x = bfd_get_32 (abfd, addr); - - x = (x & 0xFF00FF00); - x = (x | ((call_addr & HIGH_WORD_MASK) >> 8)); - x = (x | (call_addr & LOW_WORD_MASK) << 16); - - bfd_put_32 (abfd, (bfd_vma) x, addr); - return bfd_reloc_ok; - - case BFD_RELOC_8: - addend = (reloc_entry->addend - reloc_entry->addend); - - if (!bfd_is_com_section (symbol_in->section) && - ((symbol_in->flags & BSF_OLD_COMMON) == 0)) - { - if (reloc_entry->addend > symbol_in->value) - addend = reloc_entry->addend - symbol_in->value; - if (reloc_entry->addend < symbol_in->value) - addend = reloc_entry->addend - symbol_in->value; - if (reloc_entry->addend == symbol_in->value) - addend = 0; - } - - if (bfd_is_com_section (symbol_in->section) || - ((symbol_in->flags & BSF_OLD_COMMON) != 0)) - addend = reloc_entry->addend; - - if (addend < 0 - && (call_addr < (long) (addend * (-1)))) - addend = 0; - - if (call_addr + addend > 0xFF) - { - bfd_perror (_("Absolute address Exceeds 8 bit Range")); - return bfd_reloc_outofrange; - } - - x = bfd_get_8 (abfd, addr); - x = x & 0x00; - x = x | (call_addr + addend); - - bfd_put_8 (abfd, (bfd_vma) x, addr); - return bfd_reloc_ok; - - case BFD_RELOC_16: - addend = (reloc_entry->addend - reloc_entry->addend); - if (!bfd_is_com_section (symbol_in->section) && - ((symbol_in->flags & BSF_OLD_COMMON) == 0)) - { - if (reloc_entry->addend > symbol_in->value) - addend = reloc_entry->addend - symbol_in->value; - - if (reloc_entry->addend < symbol_in->value) - addend = reloc_entry->addend - symbol_in->value; - - if (reloc_entry->addend == symbol_in->value) - addend = 0; - } - - if (bfd_is_com_section (symbol_in->section) || - ((symbol_in->flags & BSF_OLD_COMMON) != 0)) - addend = reloc_entry->addend; - - if (addend < 0 - && (call_addr < (long) (addend * (-1)))) - addend = 0; - - if ((call_addr + addend) > 0xFFFF) - { - bfd_perror (_("Absolute address Exceeds 16 bit Range")); - return bfd_reloc_outofrange; - } - else - { - unsigned short val = (call_addr + addend); - - x = bfd_get_16 (abfd, addr); - - /* LE */ - x = (x & 0x0000); /* Flush garbage value. */ - x = val; - if ((symbol_in->section->flags & SEC_CODE) == SEC_CODE) - x = x >> 1; /* Convert it into words. */ - } - - bfd_put_16 (abfd, (bfd_vma) x, addr); - return bfd_reloc_ok; - - case BFD_RELOC_32: - addend = (reloc_entry->addend - reloc_entry->addend); - - if (!bfd_is_com_section (symbol_in->section) && - ((symbol_in->flags & BSF_OLD_COMMON) == 0)) - { - if (reloc_entry->addend > symbol_in->value) - addend = reloc_entry->addend - symbol_in->value; - if (reloc_entry->addend < symbol_in->value) - addend = reloc_entry->addend - symbol_in->value; - if (reloc_entry->addend == symbol_in->value) - addend = 0; - } - - if (bfd_is_com_section (symbol_in->section) || - ((symbol_in->flags & BSF_OLD_COMMON) != 0)) - addend = reloc_entry->addend; - - if (addend < 0 - && (call_addr < (long) (addend * (-1)))) - addend = 0; - - if ((call_addr + addend) < 0) - { - bfd_perror ("Absolute address Exceeds 32 bit Range"); - return bfd_reloc_outofrange; - } - - x = bfd_get_32 (abfd, addr); - x = (x & 0x0000); /* Flush garbage value. */ - x = call_addr + addend; - if ((symbol_in->section->flags & SEC_CODE) == SEC_CODE) - x = x >> 1; /* Convert it into words. */ - - bfd_put_32 (abfd, (bfd_vma) x, addr); - return bfd_reloc_ok; - - default: - bfd_perror (_("Unrecognized Reloc Type")); - return bfd_reloc_notsupported; - } - } - - return bfd_reloc_notsupported; -} - -static reloc_howto_type howto_table[] = -{ - EMPTY_HOWTO (0), - EMPTY_HOWTO (1), - { - BFD_RELOC_32, 0, 1, 8, FALSE, 0, complain_overflow_bitfield, - coff_maxq20_reloc, "32Bit", TRUE, 0x000000ff, 0x000000ff, TRUE - }, - { - SHORT_JUMP, 0, 1, 8, FALSE, 0, complain_overflow_bitfield, - coff_maxq20_reloc, "SHORT_JMP", TRUE, 0x000000ff, 0x000000ff, TRUE - }, - { - ABSOLUTE_ADDR_FOR_DATA, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, - coff_maxq20_reloc, "INTERSEGMENT_RELOC", TRUE, 0x00000000, 0x00000000, - FALSE - }, - { - BFD_RELOC_16, 0, 1, 8, FALSE, 0, complain_overflow_bitfield, - coff_maxq20_reloc, "16Bit", TRUE, 0x000000ff, 0x000000ff, TRUE - }, - { - LONG_JUMP, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, - coff_maxq20_reloc, "LONG_JUMP", TRUE, 0x00000000, 0x00000000, FALSE - }, - { - BFD_RELOC_8, 0, 1, 8, FALSE, 0, complain_overflow_bitfield, - coff_maxq20_reloc, "8bit", TRUE, 0x000000ff, 0x000000ff, TRUE - }, - EMPTY_HOWTO (8), - EMPTY_HOWTO (9), - EMPTY_HOWTO (10), -}; - -static reloc_howto_type * -maxq_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - switch (code) - { - /* SHORT JUMP */ - case BFD_RELOC_16_PCREL_S2: - return howto_table + 3; - - /* INTERSEGMENT JUMP */ - case BFD_RELOC_24: - return howto_table + 4; - - /* BYTE RELOC */ - case BFD_RELOC_8: - return howto_table + 7; - - /* WORD RELOC */ - case BFD_RELOC_16: - return howto_table + 5; - - /* LONG RELOC */ - case BFD_RELOC_32: - return howto_table + 2; - - /* LONG JUMP */ - case BFD_RELOC_14: - return howto_table + 6; - - default: - return NULL; - } -} - -static reloc_howto_type * -maxq_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) -{ - unsigned int i; - - for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++) - if (howto_table[i].name != NULL - && strcasecmp (howto_table[i].name, r_name) == 0) - return &howto_table[i]; - - return NULL; -} - -#define coff_bfd_reloc_type_lookup maxq_reloc_type_lookup -#define coff_bfd_reloc_name_lookup maxq_reloc_name_lookup - -/* Perform any necessary magic to the addend in a reloc entry. */ -#define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ - cache_ptr->addend = ext_reloc.r_offset; - -#ifndef bfd_pe_print_pdata -#define bfd_pe_print_pdata NULL -#endif - -#include "coffcode.h" - -#ifndef TARGET_UNDERSCORE -#define TARGET_UNDERSCORE 1 -#endif - -#ifndef EXTRA_S_FLAGS -#define EXTRA_S_FLAGS 0 -#endif - -/* Forward declaration for use initialising alternative_target field. */ -CREATE_LITTLE_COFF_TARGET_VEC (maxqcoff_vec, "coff-maxq", 0, EXTRA_S_FLAGS, - TARGET_UNDERSCORE, NULL, COFF_SWAP_TABLE); - |