macro is only ever applied to an asymbol. */
#define ecoffsymbol(asymbol) ((ecoff_symbol_type *) (&((asymbol)->the_bfd)))
-/* This is a hack borrowed from coffcode.h; we need to save the index
- of a symbol when we write it out so that can set the symbol index
- correctly when we write out the relocs. */
-#define ecoff_get_sym_index(symbol) ((unsigned long) (symbol)->udata)
-#define ecoff_set_sym_index(symbol, idx) ((symbol)->udata = (PTR) (idx))
-
/* The page boundary used to align sections in the executable file. */
#define PAGE_SIZE 0x2000
PTR data,
asection *section,
bfd *output_bfd));
+static bfd_reloc_status_type ecoff_reflo_reloc PARAMS ((bfd *abfd,
+ arelent *reloc,
+ asymbol *symbol,
+ PTR data,
+ asection *section,
+ bfd *output_bfd));
static bfd_reloc_status_type ecoff_gprel_reloc PARAMS ((bfd *abfd,
arelent *reloc,
asymbol *symbol,
bfd *abfd;
{
abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *)
- bfd_zalloc (abfd, sizeof(ecoff_data_type)));
+ bfd_zalloc (abfd, sizeof (ecoff_data_type)));
if (abfd->tdata.ecoff_obj_data == NULL)
{
bfd_error = no_memory;
return NULL;
ecoff = ecoff_data (abfd);
+ ecoff->gp_size = 8;
ecoff->sym_filepos = internal_f->f_symptr;
if (internal_a != (struct internal_aouthdr *) NULL)
bfd_error = no_memory;
return (asymbol *) NULL;
}
+ memset (new, 0, sizeof *new);
new->symbol.section = (asection *) NULL;
new->fdr = (FDR *) NULL;
new->local = false;
case stLabel:
case stProc:
case stStaticProc:
+ break;
case stNil:
+ if (MIPS_IS_STAB (ecoff_sym))
+ {
+ asym->flags = BSF_DEBUGGING;
+ return;
+ }
break;
default:
asym->flags = BSF_DEBUGGING;
asym->flags = BSF_DEBUGGING;
break;
case scCommon:
- /* FIXME: We should take a -G argument, which gives the maximum
- size of objects to be put in the small common section. Until
- we do, we put objects of sizes up to 8 in the small common
- section. The assembler should do this for us, but the native
- assembler seems to get confused. */
- if (asym->value > 8)
+ if (asym->value > ecoff_data (abfd)->gp_size)
{
asym->section = &bfd_com_section;
+ asym->flags = 0;
break;
}
/* Fall through. */
/* ECOFF relocs are either against external symbols, or against
sections. If we are producing relocateable output, and the reloc
- is against an external symbol, the resulting reloc will also be
- against the same symbol. In such a case, we don't want to change
- anything about the way the reloc is handled, since it will all be
- done at final link time. Rather than put special case code into
+ is against an external symbol, and nothing has given us any
+ additional addend, the resulting reloc will also be against the
+ same symbol. In such a case, we don't want to change anything
+ about the way the reloc is handled, since it will all be done at
+ final link time. Rather than put special case code into
bfd_perform_relocation, all the reloc types use this howto
function. It just short circuits the reloc if producing
relocateable output against an external symbol. */
bfd *output_bfd;
{
if (output_bfd != (bfd *) NULL
- && (symbol->flags & BSF_SECTION_SYM) == 0)
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
return bfd_reloc_continue;
}
-/* Do a REFHI relocation. The next reloc must be the corresponding
- REFLO. This has to be done in a function so that carry is handled
- correctly. */
+/* Do a REFHI relocation. This has to be done in combination with a
+ REFLO reloc, because there is a carry from the REFLO to the REFHI.
+ Here we just save the information we need; we do the actual
+ relocation when we see the REFLO. ECOFF requires that the REFLO
+ immediately follow the REFHI, so this ought to work. */
+
+static bfd_byte *ecoff_refhi_addr;
+static bfd_vma ecoff_refhi_addend;
static bfd_reloc_status_type
ecoff_refhi_reloc (abfd,
bfd *output_bfd;
{
bfd_reloc_status_type ret;
- arelent *rello;
bfd_vma relocation;
- unsigned long insn;
- unsigned long val;
- unsigned long vallo;
/* If we're relocating, and this an external symbol, we don't want
to change anything. */
if (output_bfd != (bfd *) NULL
- && (symbol->flags & BSF_SECTION_SYM) == 0)
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
&& output_bfd == (bfd *) NULL)
ret = bfd_reloc_undefined;
- rello = reloc_entry + 1;
- BFD_ASSERT (rello->howto->type == ECOFF_R_REFLO
- && *rello->sym_ptr_ptr == *reloc_entry->sym_ptr_ptr);
-
if (bfd_is_com_section (symbol->section))
relocation = 0;
else
if (reloc_entry->address > input_section->_cooked_size)
return bfd_reloc_outofrange;
- insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
- vallo = bfd_get_32 (abfd, (bfd_byte *) data + rello->address) & 0xffff;
- val = ((insn & 0xffff) << 16) + vallo;
- val += relocation;
-
- /* The low order 16 bits are always treated as a signed value.
- Therefore, a negative value in the low order bits requires an
- adjustment in the high order bits. We need to make this
- adjustment in two ways: once for the bits we took from the data,
- and once for the bits we are putting back in to the data. */
- if ((vallo & 0x8000) != 0)
- val -= 0x10000;
- if ((val & 0x8000) != 0)
- val += 0x10000;
-
- insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff);
- bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
+ /* Save the information, and let REFLO do the actual relocation. */
+ ecoff_refhi_addr = (bfd_byte *) data + reloc_entry->address;
+ ecoff_refhi_addend = relocation;
- if (output_bfd != (bfd *) NULL)
+ if (output_bfd != (bfd *) NULL)
reloc_entry->address += input_section->output_offset;
return ret;
}
+/* Do a REFLO relocation. This is a straightforward 16 bit inplace
+ relocation; this function exists in order to do the REFHI
+ relocation described above. */
+
+static bfd_reloc_status_type
+ecoff_reflo_reloc (abfd,
+ reloc_entry,
+ symbol,
+ data,
+ input_section,
+ output_bfd)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+{
+ if (ecoff_refhi_addr != (bfd_byte *) NULL)
+ {
+ unsigned long insn;
+ unsigned long val;
+ unsigned long vallo;
+
+ /* Do the REFHI relocation. Note that we actually don't need to
+ know anything about the REFLO itself, except where to find
+ the low 16 bits of the addend needed by the REFHI. */
+ insn = bfd_get_32 (abfd, ecoff_refhi_addr);
+ vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address)
+ & 0xffff);
+ val = ((insn & 0xffff) << 16) + vallo;
+ val += ecoff_refhi_addend;
+
+ /* The low order 16 bits are always treated as a signed value.
+ Therefore, a negative value in the low order bits requires an
+ adjustment in the high order bits. We need to make this
+ adjustment in two ways: once for the bits we took from the
+ data, and once for the bits we are putting back in to the
+ data. */
+ if ((vallo & 0x8000) != 0)
+ val -= 0x10000;
+ if ((val & 0x8000) != 0)
+ val += 0x10000;
+
+ insn = (insn &~ 0xffff) | ((val >> 16) & 0xffff);
+ bfd_put_32 (abfd, insn, ecoff_refhi_addr);
+
+ ecoff_refhi_addr = (bfd_byte *) NULL;
+ }
+
+ /* Now do the REFLO reloc in the usual way. */
+ return ecoff_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd);
+}
+
/* Do a GPREL relocation. This is a 16 bit value which must become
the offset from the gp register. */
unsigned long val;
unsigned long insn;
- /* If we're relocating, and this an external symbol, we don't want
- to change anything. */
+ /* If we're relocating, and this is an external symbol with no
+ addend, we don't want to change anything. We will only have an
+ addend if this is a newly created reloc, not read from an ECOFF
+ file. */
if (output_bfd != (bfd *) NULL
- && (symbol->flags & BSF_SECTION_SYM) == 0)
+ && (symbol->flags & BSF_SECTION_SYM) == 0
+ && reloc_entry->addend == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
/* We have to figure out the gp value, so that we can adjust the
symbol value correctly. We look up the symbol _gp in the output
BFD. If we can't find it, we're stuck. We cache it in the ECOFF
- target data. */
- if (ecoff_data (output_bfd)->gp == 0)
+ target data. We don't need to adjust the symbol value for an
+ external symbol if we are producing relocateable output. */
+ if (ecoff_data (output_bfd)->gp == 0
+ && (relocateable == false
+ || (symbol->flags & BSF_SECTION_SYM) != 0))
{
if (relocateable != false)
{
insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
- /* Set val to the offset into the section (if we are relocating
- against an external symbol, insn & 0xffff will be zero and so
- will reloc_entry->addend). */
+ /* Set val to the offset into the section or symbol. */
val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff;
if (val & 0x8000)
val -= 0x10000;
- /* Adjust val for the final section location and GP value. */
- val += (relocation - ecoff_data (output_bfd)->gp);
+ /* Adjust val for the final section location and GP value. If we
+ are producing relocateable output, we don't want to do this for
+ an external symbol. */
+ if (relocateable == false
+ || (symbol->flags & BSF_SECTION_SYM) != 0)
+ val += relocation - ecoff_data (output_bfd)->gp;
insn = (insn &~ 0xffff) | (val & 0xffff);
bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
0, /* bitpos */
false, /* absolute (obsolete) */
true, /* complain_on_overflow */
- ecoff_generic_reloc, /* special_function */
+ ecoff_reflo_reloc, /* special_function */
"REFLO", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
case BFD_RELOC_LO16:
ecoff_type = ECOFF_R_REFLO;
break;
+ case BFD_RELOC_MIPS_GPREL:
+ ecoff_type = ECOFF_R_GPREL;
+ break;
default:
return (CONST struct reloc_howto_struct *) NULL;
}
projects / external / binutils.git / commitdiff