-/* AMD 29000 COFF back-end for BFD.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+/* 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 Descriptor library.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* $Id$ */
-
#define A29K 1
#include "bfd.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) \
((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);
}
/* this function is in charge of performing all the 29k relocations */
static bfd_reloc_status_type
-DEFUN(a29k_reloc,(abfd, reloc_entry, symbol_in, data, input_section),
- bfd *abfd AND
- arelent *reloc_entry AND
- asymbol *symbol_in AND
- unsigned char *data AND
- asection *input_section)
+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;
{
- /* 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;
+ /* 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;
- unsigned long insn;
- unsigned long sym_value;
- unsigned long unsigned_value;
- unsigned short r_type;
- long signed_value;
+ if (output_bfd) {
+ /* Partial linking - do nothing */
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
-
- r_type = reloc_entry->howto->type;
+ }
- /* FIXME: Do we need to check for partial linking here */
- if (symbol_in && (symbol_in->flags & BSF_UNDEFINED))
+ 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)
{
- /* 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);
+ 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);
+ }
- 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 = false;
- return(bfd_reloc_dangerous);
- }
- insn = bfd_get_32(abfd, data + reloc_entry->address);
- sym_value = get_symbol_value(symbol_in);
+ sym_value = get_symbol_value(symbol_in);
- switch (r_type)
+ 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 + reloc_entry->address) & ~0x3ffff) == 0)
+ { /* Absolute jmp/call */
+ insn |= (1<<24); /* Make it absolute */
+ signed_value += reloc_entry->address;
+ /* FIXME: Should we change r_type to R_IABS */
+ }
+ else
{
- case R_IREL:
- /* Take the value in the field and sign extend it */
- signed_value = EXTRACT_HWORD(insn) << 2;
- signed_value = SIGN_EXTEND_HWORD(signed_value);
- 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 */
- signed_value /= 2;
- }
- else
- {
- /* Relative jmp/call, so subtract from the value the
- address of the place we're coming from */
- signed_value -= reloc_entry->address +
- input_section->output_section->vma +
- input_section->output_offset;
- if (signed_value>0x1ffff || signed_value<-0x20000)
- return(bfd_reloc_outofrange);
-
- signed_value /= 2;
- }
- insn = INSERT_HWORD(insn, signed_value);
- break;
- case R_ILOHALF:
- unsigned_value = EXTRACT_HWORD(insn);
- unsigned_value += sym_value + reloc_entry->addend;
- insn = INSERT_HWORD(insn, unsigned_value);
- break;
- case R_IHIHALF:
- /* 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 */
- return(bfd_reloc_ok);
- break;
- case R_IHCONST:
- /* consth, part 2
- Now relocate the reference */
- if (part1_consth_active == false) {
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"IHIHALF missing in module %s\n",
- abfd->filename);
- 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;
- break;
- case R_BYTE:
- unsigned_value = (insn >> 24) + 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);
- }
- insn = (insn & 0x00ffffff) | (unsigned_value << 24);
- break;
- case R_HWORD:
- unsigned_value = (insn >> 16) + 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);
- }
- insn = (insn & 0x0000ffff) | (unsigned_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);
+ /* 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);
+ }
- bfd_put_32(abfd, insn, data+reloc_entry->address);
- return(bfd_reloc_ok);
+
+ 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)
-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)
+static void
+reloc_processing (relent,reloc, symbols, abfd, section)
+ arelent *relent;
+ struct internal_reloc *reloc;
+ asymbol **symbols;
+ bfd *abfd;
+ 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= 0;
+ relent->sym_ptr_ptr= bfd_abs_section.symbol_ptr_ptr;
}
else
{
ptr = *(relent->sym_ptr_ptr);
if (ptr
- && ptr->the_bfd == abfd
- && ptr->section != (asection *) NULL
+ && bfd_asymbol_bfd(ptr) == abfd
+
&& ((ptr->flags & BSF_OLD_COMMON)== 0))
{
- relent->addend = -(ptr->section->vma + ptr->value);
+ relent->addend = 0;
}
else
{
relent->addend = 0;
}
relent->address-= section->vma;
- relent->section = 0;
}
}
bfd_target a29kcoff_big_vec =
{
- "coff-a29k-big", /* name */
- 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),
-
- (SEC_HAS_CONTENTS | SEC_ALLOC /* section flags */
- | SEC_LOAD | SEC_RELOC
- | SEC_READONLY ),
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
- 2, /* minimum section alignment */
- /* data */
- _do_getb64, _do_putb64, _do_getb32,
- _do_putb32, _do_getb16, _do_putb16,
- /* hdrs */
- _do_getb64, _do_putb64, _do_getb32,
- _do_putb32, _do_getb16, _do_putb16,
-
- {
+ "coff-a29k-big", /* name */
+ 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 | WP_TEXT),
+
+ (SEC_HAS_CONTENTS | SEC_ALLOC /* section flags */
+ | 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,
+
+ {
- _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
+ _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
+ },
+
+ BFD_JUMP_TABLE_GENERIC (coff),
+ BFD_JUMP_TABLE_COPY (coff),
+ BFD_JUMP_TABLE_CORE (_bfd_nocore),
+ BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
+ BFD_JUMP_TABLE_SYMBOLS (coff),
+ BFD_JUMP_TABLE_RELOCS (coff),
+ BFD_JUMP_TABLE_WRITE (coff),
+ BFD_JUMP_TABLE_LINK (coff),
+
+ COFF_SWAP_TABLE
};
-
projects / binutils.git / blobdiff