/* BFD back-end for AMD 29000 COFF binaries.
- Copyright 1990, 91, 92, 93, 94, 95, 97, 98, 99, 2000
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001,
+ 2002, 2003
Free Software Foundation, Inc.
Contributed by David Wood at New York University 7/8/91.
static long get_symbol_value PARAMS ((asymbol *));
static bfd_reloc_status_type a29k_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static boolean coff_a29k_relocate_section
+static bfd_boolean coff_a29k_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
struct internal_reloc *, struct internal_syment *, asection **));
-static boolean coff_a29k_adjust_symndx
+static bfd_boolean coff_a29k_adjust_symndx
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
- struct internal_reloc *, boolean *));
+ struct internal_reloc *, bfd_boolean *));
+static void reloc_processing
+ PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *));
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
#define SIGN_EXTEND_HWORD(HWORD) \
(((HWORD) ^ 0x8000) - 0x8000)
-/* Provided the symbol, returns the value reffed */
+/* Provided the symbol, returns the value reffed. */
+
static long
-get_symbol_value (symbol)
+get_symbol_value (symbol)
asymbol *symbol;
-{
+{
long relocation = 0;
if (bfd_is_com_section (symbol->section))
- {
- relocation = 0;
- }
- else
- {
+ relocation = 0;
+ else
relocation = symbol->value +
- symbol->section->output_section->vma +
+ symbol->section->output_section->vma +
symbol->section->output_offset;
- }
- return(relocation);
+ return relocation;
}
-/* this function is in charge of performing all the 29k relocations */
+/* 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,
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;
+ /* The consth relocation comes in two parts, we have to remember
+ the state between calls, in these variables. */
+ static bfd_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;
+ bfd_byte *hit_data =addr + (bfd_byte *) (data);
- if (output_bfd) {
- /* Partial linking - do nothing */
- reloc_entry->address += input_section->output_offset;
- 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 != NULL
&& bfd_is_und_section (symbol_in->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;
+ /* 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;
}
- 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))
+ {
+ 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;
-
- /* See the note on the R_IREL reloc in coff_a29k_relocate_section. */
- if (signed_value == - (long) reloc_entry->address)
- signed_value = 0;
-
- 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
+ switch (r_type)
{
- /* 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_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);
+ 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;
+
+ /* See the note on the R_IREL reloc in coff_a29k_relocate_section. */
+ if (signed_value == - (long) reloc_entry->address)
+ signed_value = 0;
+
+ 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 -= (reloc_entry->address
+ + 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, (bfd_vma) 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, (bfd_vma) 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)
+ {
+ *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, (bfd_vma) 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)
+ 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)
+ return bfd_reloc_overflow;
+ bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
+ break;
+ case R_WORD:
+ insn = bfd_get_32 (abfd, hit_data);
+ insn += sym_value + reloc_entry->addend;
+ bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
+ break;
+ default:
+ *error_message = _("Unrecognized reloc");
+ 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)
- 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)
- 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);
+
+ return(bfd_reloc_ok);
}
-/* type rightshift
- size
- bitsize
- pc-relative
- bitpos
- absolute
- complain_on_overflow
- special_function
- relocation name
- partial_inplace
- src_mask
-*/
-
-/*FIXME: I'm not real sure about this table */
-static reloc_howto_type howto_table[] =
-{
- {R_ABS, 0, 3, 32, false, 0, complain_overflow_bitfield,a29k_reloc,"ABS", true, 0xffffffff,0xffffffff, false},
- EMPTY_HOWTO (1),
- EMPTY_HOWTO (2),
- EMPTY_HOWTO (3),
- EMPTY_HOWTO (4),
- EMPTY_HOWTO (5),
- EMPTY_HOWTO (6),
- EMPTY_HOWTO (7),
- EMPTY_HOWTO (8),
- EMPTY_HOWTO (9),
- EMPTY_HOWTO (10),
- EMPTY_HOWTO (11),
- EMPTY_HOWTO (12),
- 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),
- {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},
-};
+/*FIXME: I'm not real sure about this table. */
+static reloc_howto_type howto_table[] =
+ {
+ {R_ABS, 0, 3, 32, FALSE, 0, complain_overflow_bitfield,a29k_reloc,"ABS", TRUE, 0xffffffff,0xffffffff, FALSE},
+ EMPTY_HOWTO (1),
+ EMPTY_HOWTO (2),
+ EMPTY_HOWTO (3),
+ EMPTY_HOWTO (4),
+ EMPTY_HOWTO (5),
+ EMPTY_HOWTO (6),
+ EMPTY_HOWTO (7),
+ EMPTY_HOWTO (8),
+ EMPTY_HOWTO (9),
+ EMPTY_HOWTO (10),
+ EMPTY_HOWTO (11),
+ EMPTY_HOWTO (12),
+ 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),
+ {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},
+ };
#define BADMAG(x) A29KBADMAG(x)
bfd *abfd;
asection *section;
{
- static bfd_vma ihihalf_vaddr = (bfd_vma) -1;
+ static bfd_vma ihihalf_vaddr = (bfd_vma) -1;
- relent->address = reloc->r_vaddr;
- relent->howto = howto_table + reloc->r_type;
- if (reloc->r_type == R_IHCONST)
- {
+ relent->address = reloc->r_vaddr;
+ relent->howto = howto_table + reloc->r_type;
+ if (reloc->r_type == R_IHCONST)
+ {
/* The address of an R_IHCONST should always be the address of
the immediately preceding R_IHIHALF. relocs generated by gas
are correct, but relocs generated by High C are different (I
can't figure out what the address means for High C). We can
handle both gas and High C by ignoring the address here, and
simply reusing the address saved for R_IHIHALF. */
- if (ihihalf_vaddr == (bfd_vma) -1)
- abort ();
- relent->address = ihihalf_vaddr;
- ihihalf_vaddr = (bfd_vma) -1;
- relent->addend = reloc->r_symndx;
- relent->sym_ptr_ptr= bfd_abs_section_ptr->symbol_ptr_ptr;
+ if (ihihalf_vaddr == (bfd_vma) -1)
+ abort ();
+ relent->address = ihihalf_vaddr;
+ ihihalf_vaddr = (bfd_vma) -1;
+ relent->addend = reloc->r_symndx;
+ relent->sym_ptr_ptr= bfd_abs_section_ptr->symbol_ptr_ptr;
}
- else
+ else
{
asymbol *ptr;
- relent->sym_ptr_ptr = symbols + obj_convert(abfd)[reloc->r_symndx];
- ptr = *(relent->sym_ptr_ptr);
+ relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx];
- if (ptr
- && bfd_asymbol_bfd(ptr) == abfd
+ ptr = *(relent->sym_ptr_ptr);
- && ((ptr->flags & BSF_OLD_COMMON)== 0))
- {
- relent->addend = 0;
- }
+ if (ptr
+ && bfd_asymbol_bfd(ptr) == abfd
+ && ((ptr->flags & BSF_OLD_COMMON) == 0))
+ relent->addend = 0;
else
- {
- relent->addend = 0;
- }
+ relent->addend = 0;
+
relent->address-= section->vma;
if (reloc->r_type == R_IHIHALF)
ihihalf_vaddr = relent->address;
else if (ihihalf_vaddr != (bfd_vma) -1)
abort ();
- }
+ }
}
/* The reloc processing routine for the optimized COFF linker. */
-static boolean
+static bfd_boolean
coff_a29k_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, syms, sections)
bfd *output_bfd ATTRIBUTE_UNUSED;
{
struct internal_reloc *rel;
struct internal_reloc *relend;
- boolean hihalf;
+ bfd_boolean hihalf;
bfd_vma hihalf_val;
- /* If we are performing a relocateable link, we don't need to do a
+ /* If we are performing a relocatable link, we don't need to do a
thing. The caller will take care of adjusting the reloc
addresses and symbol indices. */
- if (info->relocateable)
- return true;
+ if (info->relocatable)
+ return TRUE;
- hihalf = false;
+ hihalf = FALSE;
hihalf_val = 0;
rel = relocs;
struct internal_syment *sym;
asection *sec;
bfd_vma val;
- boolean overflow;
+ bfd_boolean overflow;
unsigned long insn;
long signed_value;
unsigned long unsigned_value;
}
else
{
- if (h->root.type == bfd_link_hash_defined
+ if ( h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
sec = h->root.u.def.section;
{
if (! ((*info->callbacks->undefined_symbol)
(info, h->root.root.string, input_bfd, input_section,
- rel->r_vaddr - input_section->vma, true)))
- return false;
+ rel->r_vaddr - input_section->vma, TRUE)))
+ return FALSE;
}
}
if (! ((*info->callbacks->reloc_dangerous)
(info, _("missing IHCONST reloc"), input_bfd,
input_section, rel->r_vaddr - input_section->vma)))
- return false;
- hihalf = false;
+ return FALSE;
+ hihalf = FALSE;
}
}
- overflow = false;
+ overflow = FALSE;
switch (rel->r_type)
{
default:
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
case R_IREL:
insn = bfd_get_32 (input_bfd, loc);
+ (rel->r_vaddr - input_section->vma));
if (signed_value > 0x1ffff || signed_value < - 0x20000)
{
- overflow = true;
+ overflow = TRUE;
signed_value = 0;
}
}
insn = INSERT_HWORD (insn, signed_value);
bfd_put_32 (input_bfd, (bfd_vma) insn, loc);
-
break;
case R_ILOHALF:
unsigned_value = EXTRACT_HWORD (insn);
unsigned_value += val;
insn = INSERT_HWORD (insn, unsigned_value);
- bfd_put_32 (input_bfd, insn, loc);
+ bfd_put_32 (input_bfd, (bfd_vma) insn, loc);
break;
case R_IHIHALF:
/* Save the value for the R_IHCONST reloc. */
- hihalf = true;
+ hihalf = TRUE;
hihalf_val = val;
break;
if (! ((*info->callbacks->reloc_dangerous)
(info, _("missing IHIHALF reloc"), input_bfd,
input_section, rel->r_vaddr - input_section->vma)))
- return false;
+ return FALSE;
hihalf_val = 0;
}
insn = INSERT_HWORD (insn, unsigned_value);
bfd_put_32 (input_bfd, (bfd_vma) insn, loc);
- hihalf = false;
+ hihalf = FALSE;
break;
rstat = _bfd_relocate_contents (howto_table + rel->r_type,
input_bfd, val, loc);
if (rstat == bfd_reloc_overflow)
- overflow = true;
+ overflow = TRUE;
else if (rstat != bfd_reloc_ok)
abort ();
break;
(info, name, howto_table[rel->r_type].name, (bfd_vma) 0,
input_bfd, input_section,
rel->r_vaddr - input_section->vma)))
- return false;
+ return FALSE;
}
- }
+ }
- return true;
+ return TRUE;
}
#define coff_relocate_section coff_a29k_relocate_section
/* We don't want to change the symndx of a R_IHCONST reloc, since it
is actually an addend, not a symbol index at all. */
-/*ARGSUSED*/
-static boolean
+static bfd_boolean
coff_a29k_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp)
bfd *obfd ATTRIBUTE_UNUSED;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
bfd *ibfd ATTRIBUTE_UNUSED;
asection *sec ATTRIBUTE_UNUSED;
struct internal_reloc *irel;
- boolean *adjustedp;
+ bfd_boolean *adjustedp;
{
if (irel->r_type == R_IHCONST)
- *adjustedp = true;
+ *adjustedp = TRUE;
else
- *adjustedp = false;
- return true;
+ *adjustedp = FALSE;
+ return TRUE;
}
#define coff_adjust_symndx coff_a29k_adjust_symndx
#include "coffcode.h"
-CREATE_BIG_COFF_TARGET_VEC (a29kcoff_big_vec, "coff-a29k-big", 0, SEC_READONLY, '_', NULL)
+CREATE_BIG_COFF_TARGET_VEC (a29kcoff_big_vec, "coff-a29k-big", 0, SEC_READONLY, '_', NULL, COFF_SWAP_TABLE)
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