-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
- Contributed by David Wood at New York University 7/8/91
+/* BFD back-end for AMD 29000 COFF binaries.
+ Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+ Contributed by David Wood at New York University 7/8/91.
-This file is part of BFD, the Binary File Diddler.
+This file is part of BFD, the Binary File Descriptor library.
-BFD is free software; you can redistribute it and/or modify
+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 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-BFD is distributed in the hope that it will be useful,
+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 BFD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
-/* $Id$ */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define A29K 1
-#include <ansidecl.h>
-#include <sysdep.h>
#include "bfd.h"
+#include "sysdep.h"
#include "libbfd.h"
#include "obstack.h"
-#include "amdcoff.h"
-#include "internalcoff.h"
+#include "coff/a29k.h"
+#include "coff/internal.h"
#include "libcoff.h"
+static long get_symbol_value PARAMS ((asymbol *));
+static bfd_reloc_status_type a29k_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+
#define INSERT_HWORD(WORD,HWORD) \
- (((WORD) & 0xff00ff00) | (((HWORD) & 0xff00) << 8) | ((HWORD)& 0xff))
-#define EXTRACT_HWORD(WORD) (((WORD) & 0x00ff0000) >> 8) | ((WORD) & 0xff)
+ (((WORD) & 0xff00ff00) | (((HWORD) & 0xff00) << 8) | ((HWORD)& 0xff))
+#define EXTRACT_HWORD(WORD) \
+ (((WORD) & 0x00ff0000) >> 8) | ((WORD)& 0xff)
+#define SIGN_EXTEND_HWORD(HWORD) \
+ ((HWORD) & 0x8000 ? (HWORD)|0xffff0000 : (HWORD))
/* Provided the symbol, returns the value reffed */
-static long
-get_symbol_value(symbol)
-asymbol *symbol;
+static long
+get_symbol_value (symbol)
+ asymbol *symbol;
{
long relocation = 0;
- if (symbol != (asymbol *)NULL) {
- if (symbol->flags & BSF_FORT_COMM) {
- relocation = 0;
- } else {
- relocation = symbol->value;
- }
- if (symbol->section != (asection *)NULL) {
- relocation += symbol->section->output_section->vma +
- symbol->section->output_offset;
- }
+ if (bfd_is_com_section (symbol->section))
+ {
+ relocation = 0;
}
+ else
+ {
+ relocation = symbol->value +
+ symbol->section->output_section->vma +
+ symbol->section->output_offset;
+ }
+
return(relocation);
}
-static bfd_reloc_status_enum_type
-a29k_reloc(abfd, reloc_entry, symbol_in, data, input_section)
-bfd *abfd;
-arelent *reloc_entry;
-asymbol *symbol_in;
-unsigned char *data;
-asection *input_section;
+/* this function is in charge of performing all the 29k relocations */
+
+static bfd_reloc_status_type
+a29k_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
{
- static unsigned long part1_consth_active=0;
- static unsigned long part1_consth_value;
- unsigned long insn, value, sym_value;
- unsigned short r_type;
-/* bfd_reloc_status_enum_type result;*/
-/* coff_symbol_type *cs = coffsymbol(symbol_in);*/
+ /* the consth relocation comes in two parts, we have to remember
+ the state between calls, in these variables */
+ static boolean part1_consth_active = false;
+ static unsigned long part1_consth_value;
+
+ unsigned long insn;
+ unsigned long sym_value;
+ unsigned long unsigned_value;
+ unsigned short r_type;
+ long signed_value;
+
+ unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/
+ bfd_byte *hit_data =addr + (bfd_byte *)(data);
- r_type = reloc_entry->howto->type;
-
- /* FIXME: Do we need to check for partial linking here */
- if (symbol_in && (symbol_in->flags & BSF_UNDEFINED)) {
- /* Keep the state machine happy in case we're called again */
- if (r_type == R_IHIHALF) {
- part1_consth_active = 1;
- part1_consth_value = 0;
- }
- return(bfd_reloc_undefined);
- }
-
- if ((part1_consth_active) && (r_type != R_IHCONST)) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"Missing IHCONST in module %s\n",abfd->filename);
- part1_consth_active = 0;
- return(bfd_reloc_dangerous);
- }
-
- insn = bfd_get_32(abfd, data + reloc_entry->address);
- sym_value = get_symbol_value(symbol_in);
-
- switch (r_type) {
- case R_IREL:
- value = EXTRACT_HWORD(insn) << 2;
- value += sym_value + reloc_entry->addend;
- if (value <= 0x3ffff) { /* Absolute jmp/call */
- insn |= 0x01000000; /* Make it absolute */
- /* FIXME: Should we change r_type to R_IABS */
- } else { /* Relative jmp/call */
- value -= reloc_entry->address;
- if (value > 0x3ffff) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"Jmp/call too far; to %d from %s\n",
- symbol_in->name,abfd->filename);
- return(bfd_reloc_outofrange);
- }
- }
- value >>= 2;
- insn = INSERT_HWORD(insn,value);
- break;
- case R_ILOHALF:
- value = EXTRACT_HWORD(insn);
- value += sym_value + reloc_entry->addend;
- insn = INSERT_HWORD(insn,value);
- break;
- case R_IHIHALF: /* consth, part 1 */
- /* Just get the symbol value that is referenced */
- part1_consth_active = 1;
- part1_consth_value = sym_value + reloc_entry->addend;
- return(bfd_reloc_ok); /* Don't modify insn until R_IHCONST */
- break;
- case R_IHCONST: /* consth, part 2 */
- /* Now relocate the reference */
- if (!part1_consth_active) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"IHIHALF missing in module %s\n",
- abfd->filename);
- part1_consth_active = 0;
- return(bfd_reloc_dangerous);
- }
- /* sym_ptr_ptr = r_symndx, in coff_slurp_reloc_table() */
- value = (unsigned int)reloc_entry->addend; /* r_symndx */
- value += part1_consth_value;
- value >>= 16;
- insn = INSERT_HWORD(insn,value);
- part1_consth_active = 0;
- break;
- case R_BYTE:
- value = (insn >> 24) + sym_value + reloc_entry->addend;
- if (value & 0xffffff00) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"byte value too large in module %s\n",
- abfd->filename);
- return(bfd_reloc_overflow);
- }
- insn = (insn & 0x00ffffff) | (value << 24);
- break;
- case R_HWORD:
- value = (insn >> 16) + sym_value + reloc_entry->addend;
- if (value & 0xffff0000) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"hword value too large in module %s\n",
- abfd->filename);
- return(bfd_reloc_overflow);
- }
- insn = (insn & 0x0000ffff) | (value<<16);
- break;
- case R_WORD:
- insn += sym_value + reloc_entry->addend;
- break;
- default:
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"Unrecognized reloc type %d, in module %s\n",
- r_type,abfd->filename);
- return (bfd_reloc_dangerous);
- }
-
- bfd_put_32(abfd, insn, data+reloc_entry->address);
- return(bfd_reloc_ok);
+ r_type = reloc_entry->howto->type;
+
+ if (output_bfd) {
+ /* Partial linking - do nothing */
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+
+ }
+
+ if (symbol_in && (symbol_in->section == &bfd_und_section))
+ {
+ /* Keep the state machine happy in case we're called again */
+ if (r_type == R_IHIHALF)
+ {
+ part1_consth_active = true;
+ part1_consth_value = 0;
+ }
+ return(bfd_reloc_undefined);
+ }
+
+ if ((part1_consth_active) && (r_type != R_IHCONST))
+ {
+ part1_consth_active = false;
+ *error_message = (char *) "Missing IHCONST";
+ return(bfd_reloc_dangerous);
+ }
+
+
+ sym_value = get_symbol_value(symbol_in);
+
+ switch (r_type)
+ {
+ case R_IREL:
+ insn = bfd_get_32(abfd, hit_data);
+ /* Take the value in the field and sign extend it */
+ signed_value = EXTRACT_HWORD(insn);
+ signed_value = SIGN_EXTEND_HWORD(signed_value);
+ signed_value <<= 2;
+ signed_value += sym_value + reloc_entry->addend;
+ if ((signed_value&~0x3ffff) == 0)
+ { /* Absolute jmp/call */
+ insn |= (1<<24); /* Make it absolute */
+ /* FIXME: Should we change r_type to R_IABS */
+ }
+ else
+ {
+ /* Relative jmp/call, so subtract from the value the
+ address of the place we're coming from */
+ signed_value -= (input_section->output_section->vma
+ + input_section->output_offset);
+ if (signed_value>0x1ffff || signed_value<-0x20000)
+ return(bfd_reloc_overflow);
+ }
+ signed_value >>= 2;
+ insn = INSERT_HWORD(insn, signed_value);
+ bfd_put_32(abfd, insn ,hit_data);
+ break;
+ case R_ILOHALF:
+ insn = bfd_get_32(abfd, hit_data);
+ unsigned_value = EXTRACT_HWORD(insn);
+ unsigned_value += sym_value + reloc_entry->addend;
+ insn = INSERT_HWORD(insn, unsigned_value);
+ bfd_put_32(abfd, insn, hit_data);
+ break;
+ case R_IHIHALF:
+ insn = bfd_get_32(abfd, hit_data);
+ /* consth, part 1
+ Just get the symbol value that is referenced */
+ part1_consth_active = true;
+ part1_consth_value = sym_value + reloc_entry->addend;
+ /* Don't modify insn until R_IHCONST */
+ break;
+ case R_IHCONST:
+ insn = bfd_get_32(abfd, hit_data);
+ /* consth, part 2
+ Now relocate the reference */
+ if (part1_consth_active == false) {
+ *error_message = (char *) "Missing IHIHALF";
+ return(bfd_reloc_dangerous);
+ }
+ /* sym_ptr_ptr = r_symndx, in coff_slurp_reloc_table() */
+ unsigned_value = 0; /*EXTRACT_HWORD(insn) << 16;*/
+ unsigned_value += reloc_entry->addend; /* r_symndx */
+ unsigned_value += part1_consth_value;
+ unsigned_value = unsigned_value >> 16;
+ insn = INSERT_HWORD(insn, unsigned_value);
+ part1_consth_active = false;
+ bfd_put_32(abfd, insn, hit_data);
+ break;
+ case R_BYTE:
+ insn = bfd_get_8(abfd, hit_data);
+ unsigned_value = insn + sym_value + reloc_entry->addend;
+ if (unsigned_value & 0xffffff00) {
+ fprintf(stderr,"Relocation problem : ");
+ fprintf(stderr,"byte value too large in module %s\n",
+ abfd->filename);
+ return(bfd_reloc_overflow);
+ }
+ bfd_put_8(abfd, unsigned_value, hit_data);
+ break;
+ case R_HWORD:
+ insn = bfd_get_16(abfd, hit_data);
+ unsigned_value = insn + sym_value + reloc_entry->addend;
+ if (unsigned_value & 0xffff0000) {
+ fprintf(stderr,"Relocation problem : ");
+ fprintf(stderr,"hword value too large in module %s\n",
+ abfd->filename);
+ return(bfd_reloc_overflow);
+ }
+
+ bfd_put_16(abfd, insn, hit_data);
+ break;
+ case R_WORD:
+ insn = bfd_get_32(abfd, hit_data);
+ insn += sym_value + reloc_entry->addend;
+ bfd_put_32(abfd, insn, hit_data);
+ break;
+ default:
+ *error_message = "Unrecognized reloc";
+ return (bfd_reloc_dangerous);
+ }
+
+
+ return(bfd_reloc_ok);
}
/* type rightshift
*/
/*FIXME: I'm not real sure about this table */
-#define NA 0 /* Obsolete fields, via the documentation */
static reloc_howto_type howto_table[] =
{
- {R_ABS, 0, 3, NA, false, NA, NA, true,a29k_reloc,"ABS", true, 0xffffffff,0xffffffff, false},
+ {R_ABS, 0, 3, 32, false, 0, complain_overflow_bitfield,a29k_reloc,"ABS", true, 0xffffffff,0xffffffff, false},
{1}, {2}, {3}, {4}, {5}, {6}, {7}, {8}, {9}, {10},
{11}, {12}, {13}, {14}, {15}, {16}, {17}, {18}, {19}, {20},
{21}, {22}, {23},
- {R_IREL, 0, 3, NA, true, NA, NA, true,a29k_reloc,"IREL", true, 0xffffffff,0xffffffff, false},
- {R_IABS, 0, 3, NA, false, NA, NA, true,a29k_reloc,"IABS", true, 0xffffffff,0xffffffff, false},
- {R_ILOHALF, 0, 3, NA, true, NA, NA, true,a29k_reloc,"ILOHALF", true, 0x0000ffff,0x0000ffff, false},
- {R_IHIHALF, 0, 3, NA, true, NA, NA, true,a29k_reloc,"IHIHALF", true, 0xffff0000,0xffff0000, false},
- {R_IHCONST, 0, 3, NA, true, NA, NA, true,a29k_reloc,"IHCONST", true, 0xffff0000,0xffff0000, false},
- {R_BYTE, 0, 0, NA, false, NA, NA, true,a29k_reloc,"BYTE", true, 0x000000ff,0x000000ff, false},
- {R_HWORD, 0, 1, NA, false, NA, NA, true,a29k_reloc,"HWORD", true, 0x0000ffff,0x0000ffff, false},
- {R_WORD, 0, 2, NA, false, NA, NA, true,a29k_reloc,"WORD", true, 0xffffffff,0xffffffff, false},
+ {R_IREL, 0, 3, 32, true, 0, complain_overflow_signed,a29k_reloc,"IREL", true, 0xffffffff,0xffffffff, false},
+ {R_IABS, 0, 3, 32, false, 0, complain_overflow_bitfield, a29k_reloc,"IABS", true, 0xffffffff,0xffffffff, false},
+ {R_ILOHALF, 0, 3, 16, true, 0, complain_overflow_signed, a29k_reloc,"ILOHALF", true, 0x0000ffff,0x0000ffff, false},
+ {R_IHIHALF, 0, 3, 16, true, 16, complain_overflow_signed, a29k_reloc,"IHIHALF", true, 0xffff0000,0xffff0000, false},
+ {R_IHCONST, 0, 3, 16, true, 0, complain_overflow_signed, a29k_reloc,"IHCONST", true, 0xffff0000,0xffff0000, false},
+ {R_BYTE, 0, 0, 8, false, 0, complain_overflow_bitfield, a29k_reloc,"BYTE", true, 0x000000ff,0x000000ff, false},
+ {R_HWORD, 0, 1, 16, false, 0, complain_overflow_bitfield, a29k_reloc,"HWORD", true, 0x0000ffff,0x0000ffff, false},
+ {R_WORD, 0, 2, 32, false, 0, complain_overflow_bitfield, a29k_reloc,"WORD", true, 0xffffffff,0xffffffff, false},
};
-#undef NA
#define BADMAG(x) A29KBADMAG(x)
+#define RELOC_PROCESSING(relent, reloc, symbols, abfd, section) \
+ reloc_processing(relent, reloc, symbols, abfd, section)
+
+static void DEFUN(reloc_processing,(relent,reloc, symbols, abfd, section) ,
+ arelent *relent AND
+ struct internal_reloc *reloc AND
+ asymbol **symbols AND
+ bfd *abfd AND
+ asection *section)
+{
+ relent->address = reloc->r_vaddr;
+ relent->howto = howto_table + reloc->r_type;
+ if (reloc->r_type == R_IHCONST)
+ {
+ relent->addend = reloc->r_symndx;
+ relent->sym_ptr_ptr= bfd_abs_section.symbol_ptr_ptr;
+ }
+ else
+ {
+ asymbol *ptr;
+ relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx];
+
+ ptr = *(relent->sym_ptr_ptr);
+
+ if (ptr
+ && bfd_asymbol_bfd(ptr) == abfd
+
+ && ((ptr->flags & BSF_OLD_COMMON)== 0))
+ {
+ relent->addend = 0;
+ }
+ else
+ {
+ relent->addend = 0;
+ }
+ relent->address-= section->vma;
+ }
+}
+
#include "coffcode.h"
bfd_target a29kcoff_big_vec =
{
"coff-a29k-big", /* name */
- bfd_target_coff_flavour_enum,
+ bfd_target_coff_flavour,
true, /* data byte order is big */
true, /* header byte order is big */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+ HAS_SYMS | HAS_LOCALS | WP_TEXT),
(SEC_HAS_CONTENTS | SEC_ALLOC /* section flags */
- | SEC_LOAD | SEC_RELOC
- | SEC_READONLY ),
+ | SEC_LOAD | SEC_RELOC
+ | SEC_READONLY ),
+ '_', /* leading underscore */
'/', /* ar_pad_char */
15, /* ar_max_namelen */
+ 2, /* minimum section alignment */
+ /* data */
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16,
+ /* hdrs */
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16,
- 3, /* minimum section alignment */
-_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
-_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
-
-
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
- bfd_false},
- {bfd_false, coff_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- JUMP_TABLE(coff),
- COFF_SWAP_TABLE
- };
+ {
+
+ _bfd_dummy_target,
+ coff_object_p,
+ bfd_generic_archive_p,
+ _bfd_dummy_target
+ },
+ {
+ bfd_false,
+ coff_mkobject,
+ _bfd_generic_mkarchive,
+ bfd_false
+ },
+ {
+ bfd_false,
+ coff_write_object_contents,
+ _bfd_write_archive_contents,
+ bfd_false
+ },
+ JUMP_TABLE(coff),
+ COFF_SWAP_TABLE
+ };
projects / binutils.git / blobdiff