+Tue Oct 19 15:26:26 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
+
+ * coff-alpha.c: Implemented reloc handling for the linker, made
+ various other related changes.
+ * libecoff.h (ecoff_backend_data): Added rdata_in_text field.
+ Renamed finish_reloc to adjust_reloc_in. Added adjust_reloc_out
+ field.
+ (ecoff_bfd_get_relocated_section_contents): Don't define.
+ * ecoff.c (ecoff_sec_to_styp_flags, ecoff_styp_to_sec_flags):
+ Handle .lita section.
+ (ecoff_slurp_reloc_table): Handle RELOC_SECTION_FINI.
+ finish_reloc backend field renamed to adjust_reloc_in.
+ (ecoff_bfd_seclet_link): Adjust number of aux entries to
+ debug_align boundary.
+ (ecoff_compute_section_file_positions): If rdata_in_text put
+ .rdata section in text segment, not data segment. Put .pdata
+ section in text segment.
+ (ecoff_write_object_contents): Likewise. Also, call
+ adjust_reloc_out, and handle .lita, .xdata, .pdata, .fini and
+ absolute sections when writing out relocs.
+ * coffswap.h (coff_swap_aouthdr_out): For ALPHAECOFF, output 2 for
+ bldrev field, as on Alpha OSF/1. Padding field is now 2 bytes.
+ * coff-mips.c (mips_ecoff_swap_reloc_out): Added assertion.
+ (mips_adjust_reloc_in): Renamed from mips_finish_reloc.
+ (mips_adjust_reloc_out): New function (does nothing).
+ (mips_ecoff_backend_data): Initialize new fields.
+ (ecoff_bfd_get_relocation_section_contents): Define to be
+ bfd_generic_get_relocated_section_contents.
+
+ * reloc.c (bfd_perform_relocation): Added casts to avoid Alpha
+ OSF/1 cc bug.
+
Thu Oct 14 01:10:35 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
+ * reloc.c (bfd_perform_relocation): Add comments attempting to
+ explain PC relative relocations.
+
* coffcode.h (styp_to_sec_flags): Don't set SEC_DEBUGGING until it
is made to work.
(coff_compute_section_file_positions): Remove check for
/* Prototypes for static functions. */
static boolean mips_ecoff_bad_format_hook PARAMS ((bfd *abfd, PTR filehdr));
-static PTR mips_ecoff_mkobject_hook PARAMS ((bfd *abfd, PTR filehdr,
- PTR aouthdr));
static void mips_ecoff_swap_reloc_in PARAMS ((bfd *, PTR,
struct internal_reloc *));
static void mips_ecoff_swap_reloc_out PARAMS ((bfd *,
const struct internal_reloc *,
PTR));
+static void mips_adjust_reloc_in PARAMS ((bfd *,
+ const struct internal_reloc *,
+ arelent *));
+static void mips_adjust_reloc_out PARAMS ((bfd *, const arelent *,
+ struct internal_reloc *));
static bfd_reloc_status_type mips_generic_reloc PARAMS ((bfd *abfd,
arelent *reloc,
asymbol *symbol,
26, /* bitsize */
false, /* pc_relative */
0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
+ complain_overflow_dont, /* complain_on_overflow */
+ /* This needs complex overflow
+ detection, because the upper four
+ bits must match the PC. */
mips_generic_reloc, /* special_function */
"JMPADDR", /* name */
true, /* partial_inplace */
{
struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
- if (MIPS_ECOFF_BADMAG (*internal_f))
- return false;
-
- return true;
-}
-
-/* Create the MIPS ECOFF backend specific information. */
-
-static PTR
-mips_ecoff_mkobject_hook (abfd, filehdr, aouthdr)
- bfd *abfd;
- PTR filehdr;
- PTR aouthdr;
-{
- struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
- struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr;
- ecoff_data_type *ecoff;
+ switch (internal_f->f_magic)
+ {
+ case MIPS_MAGIC_1:
+ /* I don't know what endianness this implies. */
+ return true;
- if (ecoff_mkobject (abfd) == false)
- return NULL;
+ case MIPS_MAGIC_BIG:
+ case MIPS_MAGIC_BIG2:
+ case MIPS_MAGIC_BIG3:
+ return abfd->xvec->byteorder_big_p;
- ecoff = ecoff_data (abfd);
- ecoff->gp_size = 8;
- ecoff->sym_filepos = internal_f->f_symptr;
+ case MIPS_MAGIC_LITTLE:
+ case MIPS_MAGIC_LITTLE2:
+ case MIPS_MAGIC_LITTLE3:
+ return abfd->xvec->byteorder_big_p == false;
- if (internal_a != (struct internal_aouthdr *) NULL)
- {
- int i;
-
- ecoff->text_start = internal_a->text_start;
- ecoff->text_end = internal_a->text_start + internal_a->tsize;
- ecoff->gp = internal_a->gp_value;
- ecoff->gprmask = internal_a->gprmask;
- for (i = 0; i < 4; i++)
- ecoff->cprmask[i] = internal_a->cprmask[i];
- if (internal_a->magic == ECOFF_AOUT_ZMAGIC)
- abfd->flags |= D_PAGED;
+ default:
+ return false;
}
-
- return (PTR) ecoff;
}
\f
/* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in
{
RELOC *ext = (RELOC *) dst;
+ BFD_ASSERT (intern->r_extern
+ || (intern->r_symndx >= 0 && intern->r_symndx <= 12));
+
bfd_h_put_32 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr);
if (abfd->xvec->header_byteorder_big_p != false)
{
this backend routine. It must fill in the howto field. */
static void
-mips_finish_reloc (abfd, intern, rptr)
+mips_adjust_reloc_in (abfd, intern, rptr)
bfd *abfd;
- struct internal_reloc *intern;
+ const struct internal_reloc *intern;
arelent *rptr;
{
if (intern->r_type > MIPS_R_LITERAL)
rptr->howto = &mips_howto_table[intern->r_type];
}
+/* Make any adjustments needed to a reloc before writing it out. None
+ are needed for MIPS. */
+
+static void
+mips_adjust_reloc_in (abfd, rel, intern)
+ bfd *abfd;
+ const arelent *rel;
+ struct internal_reloc *intern;
+{
+}
+
/* ECOFF relocs are either against external symbols, or against
sections. If we are producing relocateable output, and the reloc
is against an external symbol, and nothing has given us any
FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in,
mips_ecoff_swap_scnhdr_in, mips_ecoff_bad_format_hook,
- ecoff_set_arch_mach_hook, mips_ecoff_mkobject_hook,
+ ecoff_set_arch_mach_hook, ecoff_mkobject_hook,
ecoff_styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook,
ecoff_slurp_symbol_table, NULL, NULL
},
/* Supported architecture. */
bfd_arch_mips,
- /* Big endian magic number. */
- MIPS_MAGIC_BIG,
- /* Little endian magic number. */
- MIPS_MAGIC_LITTLE,
/* Symbol table magic number. */
magicSym,
/* Initial portion of armap string. */
/* The page boundary used to align sections in a demand-paged
executable file. E.g., 0x1000. */
0x1000,
+ /* True if the .rdata section is part of the text segment, as on the
+ Alpha. False if .rdata is part of the data segment, as on the
+ MIPS. */
+ false,
/* Bitsize of constructor entries. */
32,
/* Reloc to use for constructor entries. */
mips_ecoff_swap_reloc_in,
mips_ecoff_swap_reloc_out,
/* Backend reloc tweaking. */
- mips_finish_reloc
+ mips_adjust_reloc_in,
+ mips_adjust_reloc_out
};
/* Looking up a reloc type is MIPS specific. */
#define ecoff_bfd_reloc_type_lookup mips_bfd_reloc_type_lookup
+/* Getting relocated section contents is generic. */
+#define ecoff_bfd_get_relocated_section_contents \
+ bfd_generic_get_relocated_section_contents
+
bfd_target ecoff_little_vec =
{
"ecoff-littlemips", /* name */
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