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authorKen Raeburn <raeburn@cygnus>1994-01-19 23:52:47 +0000
committerKen Raeburn <raeburn@cygnus>1994-01-19 23:52:47 +0000
commit693f8191edcaad38890e6ab459fa8fd42cbde726 (patch)
tree95b908d050ac5bc5bfc55232ed34e7bd2cc2656a /bfd
parent563eb766b1db6d4e877433efa7b6bbb2d578119f (diff)
downloadgdb-693f8191edcaad38890e6ab459fa8fd42cbde726.zip
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(alpha_howto_table): Construct 64-bit negative one values in case of
compilation on a 32-bit machine. Fix pcrel fields of some reloc types. (alpha_bfd_reloc_type_lookup): Handle more relocation types.
Diffstat (limited to 'bfd')
-rw-r--r--bfd/coff-alpha.c1931
1 files changed, 1760 insertions, 171 deletions
diff --git a/bfd/coff-alpha.c b/bfd/coff-alpha.c
index f38f3f6..9153d02 100644
--- a/bfd/coff-alpha.c
+++ b/bfd/coff-alpha.c
@@ -21,8 +21,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
+#include "bfdlink.h"
#include "libbfd.h"
-#include "seclet.h"
#include "coff/internal.h"
#include "coff/sym.h"
#include "coff/symconst.h"
@@ -34,15 +34,26 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Prototypes for static functions. */
static boolean alpha_ecoff_bad_format_hook PARAMS ((bfd *abfd, PTR filehdr));
-static PTR alpha_ecoff_mkobject_hook PARAMS ((bfd *abfd, PTR filehdr,
- PTR aouthdr));
static void alpha_ecoff_swap_reloc_in PARAMS ((bfd *, PTR,
struct internal_reloc *));
static void alpha_ecoff_swap_reloc_out PARAMS ((bfd *,
const struct internal_reloc *,
PTR));
+static void alpha_adjust_reloc_in PARAMS ((bfd *,
+ const struct internal_reloc *,
+ arelent *));
+static void alpha_adjust_reloc_out PARAMS ((bfd *, const arelent *,
+ struct internal_reloc *));
+static bfd_byte *alpha_ecoff_get_relocated_section_contents
+ PARAMS ((bfd *abfd, struct bfd_link_info *, struct bfd_link_order *,
+ bfd_byte *data, boolean relocateable, asymbol **symbols));
+static bfd_vma alpha_convert_external_reloc
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, struct external_reloc *,
+ struct ecoff_link_hash_entry *));
+static boolean alpha_relocate_section PARAMS ((bfd *, struct bfd_link_info *,
+ bfd *, asection *,
+ bfd_byte *, PTR));
-
/* ECOFF has COFF sections, but the debugging information is stored in
a completely different format. ECOFF targets use some of the
swapping routines from coffswap.h, and some of the generic COFF
@@ -50,8 +61,38 @@ static void alpha_ecoff_swap_reloc_out PARAMS ((bfd *,
use coffcode.h itself.
Get the generic COFF swapping routines, except for the reloc,
- symbol, and lineno ones. Give them ecoff names. */
+ symbol, and lineno ones. Give them ecoff names. Define some
+ accessor macros for the large sizes used for Alpha ECOFF. */
+
+#define GET_FILEHDR_SYMPTR bfd_h_get_64
+#define PUT_FILEHDR_SYMPTR bfd_h_put_64
+#define GET_AOUTHDR_TSIZE bfd_h_get_64
+#define PUT_AOUTHDR_TSIZE bfd_h_put_64
+#define GET_AOUTHDR_DSIZE bfd_h_get_64
+#define PUT_AOUTHDR_DSIZE bfd_h_put_64
+#define GET_AOUTHDR_BSIZE bfd_h_get_64
+#define PUT_AOUTHDR_BSIZE bfd_h_put_64
+#define GET_AOUTHDR_ENTRY bfd_h_get_64
+#define PUT_AOUTHDR_ENTRY bfd_h_put_64
+#define GET_AOUTHDR_TEXT_START bfd_h_get_64
+#define PUT_AOUTHDR_TEXT_START bfd_h_put_64
+#define GET_AOUTHDR_DATA_START bfd_h_get_64
+#define PUT_AOUTHDR_DATA_START bfd_h_put_64
+#define GET_SCNHDR_PADDR bfd_h_get_64
+#define PUT_SCNHDR_PADDR bfd_h_put_64
+#define GET_SCNHDR_VADDR bfd_h_get_64
+#define PUT_SCNHDR_VADDR bfd_h_put_64
+#define GET_SCNHDR_SIZE bfd_h_get_64
+#define PUT_SCNHDR_SIZE bfd_h_put_64
+#define GET_SCNHDR_SCNPTR bfd_h_get_64
+#define PUT_SCNHDR_SCNPTR bfd_h_put_64
+#define GET_SCNHDR_RELPTR bfd_h_get_64
+#define PUT_SCNHDR_RELPTR bfd_h_put_64
+#define GET_SCNHDR_LNNOPTR bfd_h_get_64
+#define PUT_SCNHDR_LNNOPTR bfd_h_put_64
+
#define ALPHAECOFF
+
#define NO_COFF_RELOCS
#define NO_COFF_SYMBOLS
#define NO_COFF_LINENOS
@@ -67,57 +108,297 @@ static void alpha_ecoff_swap_reloc_out PARAMS ((bfd *,
#define ECOFF_64
#include "ecoffswap.h"
-/* This is the ECOFF backend structure. The backend_data field of the
- ecoff_tdata structure is set to this when an ECOFF BFD is
- initialized. This is used by the generic ECOFF routines. */
+/* How to process the various reloc types. */
-static const struct ecoff_backend_data alpha_ecoff_backend_data =
+/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
+ from smaller values. Start with zero, widen, *then* decrement. */
+#define MINUS_ONE (((bfd_vma)0) - 1)
+
+static reloc_howto_type alpha_howto_table[] =
{
- /* Supported architecture. */
- bfd_arch_alpha,
- /* Big endian magic number. */
- 0,
- /* Little endian magic number. */
- ALPHA_MAGIC,
- /* Alignment of debugging information. E.g., 4. */
- 8,
- /* The page boundary used to align sections in a demand-paged
- executable file. E.g., 0x1000. */
- 0x10000,
- /* Bitsize of constructor entries. */
- 64,
- /* Sizes of external symbolic information. */
- sizeof (struct hdr_ext),
- sizeof (struct dnr_ext),
- sizeof (struct pdr_ext),
- sizeof (struct sym_ext),
- sizeof (struct opt_ext),
- sizeof (struct fdr_ext),
- sizeof (struct rfd_ext),
- sizeof (struct ext_ext),
- /* Functions to swap in external symbolic data. */
- ecoff_swap_hdr_in,
- ecoff_swap_dnr_in,
- ecoff_swap_pdr_in,
- ecoff_swap_sym_in,
- ecoff_swap_opt_in,
- ecoff_swap_fdr_in,
- ecoff_swap_rfd_in,
- ecoff_swap_ext_in,
- /* Functions to swap out external symbolic data. */
- ecoff_swap_hdr_out,
- ecoff_swap_dnr_out,
- ecoff_swap_pdr_out,
- ecoff_swap_sym_out,
- ecoff_swap_opt_out,
- ecoff_swap_fdr_out,
- ecoff_swap_rfd_out,
- ecoff_swap_ext_out,
- /* External reloc size. */
- RELSZ,
- /* Reloc swapping functions. */
- alpha_ecoff_swap_reloc_in,
- alpha_ecoff_swap_reloc_out
+ /* Reloc type 0 is ignored by itself. However, it appears after a
+ GPDISP reloc to identify the location where the low order 16 bits
+ of the gp register are loaded. */
+ HOWTO (ALPHA_R_IGNORE, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 8, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "IGNORE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A 32 bit reference to a symbol. */
+ HOWTO (ALPHA_R_REFLONG, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* special_function */
+ "REFLONG", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 64 bit reference to a symbol. */
+ HOWTO (ALPHA_R_REFQUAD, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* special_function */
+ "REFQUAD", /* name */
+ true, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 32 bit GP relative offset. This is just like REFLONG except
+ that when the value is used the value of the gp register will be
+ added in. */
+ HOWTO (ALPHA_R_GPREL32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_bitfield, /* complain_on_overflow */
+ 0, /* special_function */
+ "GPREL32", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Used for an instruction that refers to memory off the GP
+ register. The offset is 16 bits of the 32 bit instruction. This
+ reloc always seems to be against the .lita section. */
+ HOWTO (ALPHA_R_LITERAL, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "LITERAL", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* This reloc only appears immediately following a LITERAL reloc.
+ It identifies a use of the literal. It seems that the linker can
+ use this to eliminate a portion of the .lita section. The symbol
+ index is special: 1 means the literal address is in the base
+ register of a memory format instruction; 2 means the literal
+ address is in the byte offset register of a byte-manipulation
+ instruction; 3 means the literal address is in the target
+ register of a jsr instruction. This does not actually do any
+ relocation. */
+ HOWTO (ALPHA_R_LITUSE, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "LITUSE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Load the gp register. This is always used for a ldah instruction
+ which loads the upper 16 bits of the gp register. The next reloc
+ will be an IGNORE reloc which identifies the location of the lda
+ instruction which loads the lower 16 bits. The symbol index of
+ the GPDISP instruction appears to actually be the number of bytes
+ between the ldah and lda instructions. This gives two different
+ ways to determine where the lda instruction is; I don't know why
+ both are used. The value to use for the relocation is the
+ difference between the GP value and the current location; the
+ load will always be done against a register holding the current
+ address. */
+ HOWTO (ALPHA_R_GPDISP, /* type */
+ 16, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "GPDISP", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ true), /* pcrel_offset */
+
+ /* A 21 bit branch. The native assembler generates these for
+ branches within the text segment, and also fills in the PC
+ relative offset in the instruction. */
+ HOWTO (ALPHA_R_BRADDR, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 21, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "BRADDR", /* name */
+ true, /* partial_inplace */
+ 0x1fffff, /* src_mask */
+ 0x1fffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A hint for a jump to a register. */
+ HOWTO (ALPHA_R_HINT, /* type */
+ 2, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 14, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "HINT", /* name */
+ true, /* partial_inplace */
+ 0x3fff, /* src_mask */
+ 0x3fff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* 16 bit PC relative offset. */
+ HOWTO (ALPHA_R_SREL16, /* type */
+ 0, /* rightshift */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "SREL16", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* 32 bit PC relative offset. */
+ HOWTO (ALPHA_R_SREL32, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "SREL32", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* A 64 bit PC relative offset. */
+ HOWTO (ALPHA_R_SREL64, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "SREL64", /* name */
+ true, /* partial_inplace */
+ MINUS_ONE, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Push a value on the reloc evaluation stack. */
+ HOWTO (ALPHA_R_OP_PUSH, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "OP_PUSH", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Store the value from the stack at the given address. Store it in
+ a bitfield of size r_size starting at bit position r_offset. */
+ HOWTO (ALPHA_R_OP_STORE, /* type */
+ 0, /* rightshift */
+ 4, /* size (0 = byte, 1 = short, 2 = long) */
+ 64, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "OP_STORE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ MINUS_ONE, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Subtract the reloc address from the value on the top of the
+ relocation stack. */
+ HOWTO (ALPHA_R_OP_PSUB, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "OP_PSUB", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Shift the value on the top of the relocation stack right by the
+ given value. */
+ HOWTO (ALPHA_R_OP_PRSHIFT, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "OP_PRSHIFT", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Adjust the GP value for a new range in the object file. */
+ HOWTO (ALPHA_R_GPVALUE, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "GPVALUE", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false) /* pcrel_offset */
};
/* See whether the magic number matches. */
@@ -134,136 +415,1376 @@ alpha_ecoff_bad_format_hook (abfd, filehdr)
return true;
}
+
+/* Reloc handling. */
-/* Create an ECOFF object. */
+/* Swap a reloc in. */
-static boolean
-alpha_ecoff_mkobject (abfd)
+static void
+alpha_ecoff_swap_reloc_in (abfd, ext_ptr, intern)
bfd *abfd;
+ PTR ext_ptr;
+ struct internal_reloc *intern;
{
- abfd->tdata.ecoff_obj_data = ((struct ecoff_tdata *)
- bfd_zalloc (abfd, sizeof (ecoff_data_type)));
- if (abfd->tdata.ecoff_obj_data == NULL)
+ const RELOC *ext = (RELOC *) ext_ptr;
+
+ intern->r_vaddr = bfd_h_get_64 (abfd, (bfd_byte *) ext->r_vaddr);
+ intern->r_symndx = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_symndx);
+
+ BFD_ASSERT (abfd->xvec->header_byteorder_big_p == false);
+
+ intern->r_type = ((ext->r_bits[0] & RELOC_BITS0_TYPE_LITTLE)
+ >> RELOC_BITS0_TYPE_SH_LITTLE);
+ intern->r_extern = (ext->r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0;
+ intern->r_offset = ((ext->r_bits[1] & RELOC_BITS1_OFFSET_LITTLE)
+ >> RELOC_BITS1_OFFSET_SH_LITTLE);
+ /* Ignored the reserved bits. */
+ intern->r_size = ((ext->r_bits[3] & RELOC_BITS3_SIZE_LITTLE)
+ >> RELOC_BITS3_SIZE_SH_LITTLE);
+
+ if (intern->r_type == ALPHA_R_LITUSE
+ || intern->r_type == ALPHA_R_GPDISP)
+ {
+ /* Handle the LITUSE and GPDISP relocs specially. Its symndx
+ value is not actually a symbol index, but is instead a
+ special code. We put the code in the r_size field, and
+ clobber the symndx. */
+ if (intern->r_size != 0)
+ abort ();
+ intern->r_size = intern->r_symndx;
+ intern->r_symndx = RELOC_SECTION_NONE;
+ }
+ else if (intern->r_type == ALPHA_R_IGNORE)
{
- bfd_error = no_memory;
- return false;
+ /* The IGNORE reloc generally follows a GPDISP reloc, and is
+ against the .lita section. The section is irrelevant. */
+ if (! intern->r_extern &&
+ (intern->r_symndx == RELOC_SECTION_NONE
+ || intern->r_symndx == RELOC_SECTION_ABS))
+ abort ();
+ if (! intern->r_extern && intern->r_symndx == RELOC_SECTION_LITA)
+ intern->r_symndx = RELOC_SECTION_NONE;
}
+}
+
+/* Swap a reloc out. */
- ecoff_data (abfd)->backend_data = &alpha_ecoff_backend_data;
+static void
+alpha_ecoff_swap_reloc_out (abfd, intern, dst)
+ bfd *abfd;
+ const struct internal_reloc *intern;
+ PTR dst;
+{
+ RELOC *ext = (RELOC *) dst;
+ long symndx;
+ unsigned char size;
+
+ /* Undo the hackery done in swap_reloc_in. */
+ if (intern->r_type == ALPHA_R_LITUSE
+ || intern->r_type == ALPHA_R_GPDISP)
+ {
+ symndx = intern->r_size;
+ size = 0;
+ }
+ else if (intern->r_type == ALPHA_R_IGNORE
+ && ! intern->r_extern
+ && intern->r_symndx == RELOC_SECTION_NONE)
+ {
+ symndx = RELOC_SECTION_LITA;
+ size = intern->r_size;
+ }
+ else
+ {
+ symndx = intern->r_symndx;
+ size = intern->r_size;
+ }
- /* Always create a .scommon section for every BFD. This is a hack so
- that the linker has something to attach scSCommon symbols to. */
- bfd_make_section (abfd, SCOMMON);
+ BFD_ASSERT (intern->r_extern
+ || (intern->r_symndx >= 0 && intern->r_symndx <= 14));
- return true;
+ bfd_h_put_64 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr);
+ bfd_h_put_32 (abfd, symndx, (bfd_byte *) ext->r_symndx);
+
+ BFD_ASSERT (abfd->xvec->header_byteorder_big_p == false);
+
+ ext->r_bits[0] = ((intern->r_type << RELOC_BITS0_TYPE_SH_LITTLE)
+ & RELOC_BITS0_TYPE_LITTLE);
+ ext->r_bits[1] = ((intern->r_extern ? RELOC_BITS1_EXTERN_LITTLE : 0)
+ | ((intern->r_offset << RELOC_BITS1_OFFSET_SH_LITTLE)
+ & RELOC_BITS1_OFFSET_LITTLE));
+ ext->r_bits[2] = 0;
+ ext->r_bits[3] = ((size << RELOC_BITS3_SIZE_SH_LITTLE)
+ & RELOC_BITS3_SIZE_LITTLE);
}
-/* Create the MIPS ECOFF backend specific information. */
+/* Finish canonicalizing a reloc. Part of this is generic to all
+ ECOFF targets, and that part is in ecoff.c. The rest is done in
+ this backend routine. It must fill in the howto field. */
-static PTR
-alpha_ecoff_mkobject_hook (abfd, filehdr, aouthdr)
+static void
+alpha_adjust_reloc_in (abfd, intern, rptr)
bfd *abfd;
- PTR filehdr;
- PTR aouthdr;
+ const struct internal_reloc *intern;
+ arelent *rptr;
{
- struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
- struct internal_aouthdr *internal_a = (struct internal_aouthdr *) aouthdr;
- ecoff_data_type *ecoff;
+ if (intern->r_type > ALPHA_R_GPVALUE)
+ abort ();
- if (alpha_ecoff_mkobject (abfd) == false)
- return NULL;
+ switch (intern->r_type)
+ {
+ case ALPHA_R_BRADDR:
+ case ALPHA_R_SREL16:
+ case ALPHA_R_SREL32:
+ case ALPHA_R_SREL64:
+ /* The PC relative relocs do not seem to use the section VMA as
+ a negative addend. */
+ rptr->addend = 0;
+ break;
- ecoff = ecoff_data (abfd);
- ecoff->gp_size = 8;
- ecoff->sym_filepos = internal_f->f_symptr;
+ case ALPHA_R_GPREL32:
+ case ALPHA_R_LITERAL:
+ /* Copy the gp value for this object file into the addend, to
+ ensure that we are not confused by the linker. */
+ if (! intern->r_extern)
+ rptr->addend += ecoff_data (abfd)->gp;
+ break;
- 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;
+ case ALPHA_R_LITUSE:
+ case ALPHA_R_GPDISP:
+ /* The LITUSE and GPDISP relocs do not use a symbol, or an
+ addend, but they do use a special code. Put this code in the
+ addend field. */
+ rptr->addend = intern->r_size;
+ break;
+
+ case ALPHA_R_OP_STORE:
+ /* The STORE reloc needs the size and offset fields. We store
+ them in the addend. */
+ BFD_ASSERT (intern->r_offset <= 256 && intern->r_size <= 256);
+ rptr->addend = (intern->r_offset << 8) + intern->r_size;
+ break;
+
+ case ALPHA_R_OP_PUSH:
+ case ALPHA_R_OP_PSUB:
+ case ALPHA_R_OP_PRSHIFT:
+ /* The PUSH, PSUB and PRSHIFT relocs do not actually use an
+ address. I believe that the address supplied is really an
+ addend. */
+ rptr->addend = intern->r_vaddr;
+ break;
+
+ case ALPHA_R_GPVALUE:
+ /* Set the addend field to the new GP value. */
+ rptr->addend = intern->r_symndx + ecoff_data (abfd)->gp;
+ break;
+
+ case ALPHA_R_IGNORE:
+ /* If the type is ALPHA_R_IGNORE, make sure this is a reference
+ to the absolute section so that the reloc is ignored. For
+ some reason the address of this reloc type is not adjusted by
+ the section vma. We record the gp value for this object file
+ here, for convenience when doing the GPDISP relocation. */
+ rptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
+ rptr->address = intern->r_vaddr;
+ rptr->addend = ecoff_data (abfd)->gp;
+ break;
+
+ default:
+ break;
}
- return (PTR) ecoff;
+ rptr->howto = &alpha_howto_table[intern->r_type];
}
-
-/* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in
- external form. They use a bit which indicates whether the symbol
- is external. */
-/* Swap a reloc in. */
+/* When writing out a reloc we need to pull some values back out of
+ the addend field into the reloc. This is roughly the reverse of
+ alpha_adjust_reloc_in, except that there are several changes we do
+ not need to undo. */
static void
-alpha_ecoff_swap_reloc_in (abfd, ext_ptr, intern)
+alpha_adjust_reloc_out (abfd, rel, intern)
bfd *abfd;
- PTR ext_ptr;
+ const arelent *rel;
struct internal_reloc *intern;
{
- const RELOC *ext = (RELOC *) ext_ptr;
+ switch (intern->r_type)
+ {
+ case ALPHA_R_LITUSE:
+ case ALPHA_R_GPDISP:
+ intern->r_size = rel->addend;
+ break;
+
+ case ALPHA_R_OP_STORE:
+ intern->r_size = rel->addend & 0xff;
+ intern->r_offset = (rel->addend >> 8) & 0xff;
+ break;
+
+ case ALPHA_R_OP_PUSH:
+ case ALPHA_R_OP_PSUB:
+ case ALPHA_R_OP_PRSHIFT:
+ intern->r_vaddr = rel->addend;
+ break;
+
+ case ALPHA_R_IGNORE:
+ intern->r_vaddr = rel->address;
+ if (intern->r_symndx == RELOC_SECTION_ABS)
+ intern->r_symndx = RELOC_SECTION_NONE;
+ break;
+
+ default:
+ break;
+ }
+}
+
+/* The size of the stack for the relocation evaluator. */
+#define RELOC_STACKSIZE (10)
+
+/* Alpha ECOFF relocs have a built in expression evaluator as well as
+ other interdependencies. Rather than use a bunch of special
+ functions and global variables, we use a single routine to do all
+ the relocation for a section. I haven't yet worked out how the
+ assembler is going to handle this. */
+
+static bfd_byte *
+alpha_ecoff_get_relocated_section_contents (abfd, link_info, link_order,
+ data, relocateable, symbols)
+ bfd *abfd;
+ struct bfd_link_info *link_info;
+ struct bfd_link_order *link_order;
+ bfd_byte *data;
+ boolean relocateable;
+ asymbol **symbols;
+{
+ bfd *input_bfd = link_order->u.indirect.section->owner;
+ asection *input_section = link_order->u.indirect.section;
+ size_t reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section);
+ arelent **reloc_vector = (arelent **) alloca (reloc_size);
+ bfd *output_bfd = relocateable ? abfd : (bfd *) NULL;
+ bfd_vma gp;
+ boolean gp_undefined;
+ bfd_vma stack[RELOC_STACKSIZE];
+ int tos = 0;
+
+ if (! bfd_get_section_contents (input_bfd, input_section, data,
+ (file_ptr) 0, input_section->_raw_size))
+ return NULL;
- intern->r_vaddr = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_vaddr);
- if (abfd->xvec->header_byteorder_big_p != false)
+ /* The section size is not going to change. */
+ input_section->_cooked_size = input_section->_raw_size;
+ input_section->reloc_done = true;
+
+ if (bfd_canonicalize_reloc (input_bfd, input_section, reloc_vector,
+ symbols)
+ == 0)
+ return data;
+
+ /* Get the GP value for the output BFD. */
+ gp_undefined = false;
+ if (ecoff_data (abfd)->gp == 0)
{
- intern->r_symndx = (((int) ext->r_bits[0]
- << RELOC_BITS0_SYMNDX_SH_LEFT_BIG)
- | ((int) ext->r_bits[1]
- << RELOC_BITS1_SYMNDX_SH_LEFT_BIG)
- | ((int) ext->r_bits[2]
- << RELOC_BITS2_SYMNDX_SH_LEFT_BIG));
- intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG)
- >> RELOC_BITS3_TYPE_SH_BIG);
- intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0;
+ if (relocateable != false)
+ {
+ asection *sec;
+ bfd_vma lo;
+
+ /* Make up a value. */
+ lo = (bfd_vma) -1;
+ for (sec = abfd->sections; sec != NULL; sec = sec->next)
+ {
+ if (sec->vma < lo
+ && (strcmp (sec->name, ".sbss") == 0
+ || strcmp (sec->name, ".sdata") == 0
+ || strcmp (sec->name, ".lit4") == 0
+ || strcmp (sec->name, ".lit8") == 0
+ || strcmp (sec->name, ".lita") == 0))
+ lo = sec->vma;
+ }
+ ecoff_data (abfd)->gp = lo + 0x8000;
+ }
+ else
+ {
+ struct bfd_link_hash_entry *h;
+
+ h = bfd_link_hash_lookup (link_info->hash, "_gp", false, false,
+ true);
+ if (h == (struct bfd_link_hash_entry *) NULL
+ || h->type != bfd_link_hash_defined)
+ gp_undefined = true;
+ else
+ ecoff_data (abfd)->gp = (h->u.def.value
+ + h->u.def.section->output_section->vma
+ + h->u.def.section->output_offset);
+ }
}
- else
+ gp = ecoff_data (abfd)->gp;
+
+ for (; *reloc_vector != (arelent *) NULL; reloc_vector++)
{
- intern->r_symndx = (((int) ext->r_bits[0]
- << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE)
- | ((int) ext->r_bits[1]
- << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE)
- | ((int) ext->r_bits[2]
- << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE));
- intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE)
- >> RELOC_BITS3_TYPE_SH_LITTLE);
- intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0;
+ arelent *rel;
+ bfd_reloc_status_type r;
+ char *err;
+
+ rel = *reloc_vector;
+ r = bfd_reloc_ok;
+ switch (rel->howto->type)
+ {
+ case ALPHA_R_IGNORE:
+ rel->address += input_section->output_offset;
+ break;
+
+ case ALPHA_R_REFLONG:
+ case ALPHA_R_REFQUAD:
+ case ALPHA_R_BRADDR:
+ case ALPHA_R_HINT:
+ case ALPHA_R_SREL16:
+ case ALPHA_R_SREL32:
+ case ALPHA_R_SREL64:
+ if (relocateable
+ && ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0)
+ {
+ rel->address += input_section->output_offset;
+ break;
+ }
+ r = bfd_perform_relocation (input_bfd, rel, data, input_section,
+ output_bfd, &err);
+ break;
+
+ case ALPHA_R_GPREL32:
+ /* This relocation is used in a switch table. It is a 32
+ bit offset from the current GP value. We must adjust it
+ by the different between the original GP value and the
+ current GP value. The original GP value is stored in the
+ addend. We adjust the addend and let
+ bfd_perform_relocation finish the job. */
+ rel->addend -= gp;
+ r = bfd_perform_relocation (input_bfd, rel, data, input_section,
+ output_bfd, &err);
+ if (r == bfd_reloc_ok && gp_undefined)
+ {
+ r = bfd_reloc_dangerous;
+ err = (char *) "GP relative relocation used when GP not defined";
+ }
+ break;
+
+ case ALPHA_R_LITERAL:
+ /* This is a reference to a literal value, generally
+ (always?) in the .lita section. This is a 16 bit GP
+ relative relocation. Sometimes the subsequent reloc is a
+ LITUSE reloc, which indicates how this reloc is used.
+ This sometimes permits rewriting the two instructions
+ referred to by the LITERAL and the LITUSE into different
+ instructions which do not refer to .lita. This can save
+ a memory reference, and permits removing a value from
+ .lita thus saving GP relative space.
+
+ We do not these optimizations. To do them we would need
+ to arrange to link the .lita section first, so that by
+ the time we got here we would know the final values to
+ use. This would not be particularly difficult, but it is
+ not currently implemented. */
+
+ {
+ unsigned long insn;
+
+ /* I believe that the LITERAL reloc will only apply to a
+ ldq instruction, so check my assumption. */
+ insn = bfd_get_32 (input_bfd, data + rel->address);
+ BFD_ASSERT (((insn >> 26) & 0x3f) == 0x29);
+
+ rel->addend -= gp;
+ r = bfd_perform_relocation (input_bfd, rel, data, input_section,
+ output_bfd, &err);
+ if (r == bfd_reloc_ok && gp_undefined)
+ {
+ r = bfd_reloc_dangerous;
+ err =
+ (char *) "GP relative relocation used when GP not defined";
+ }
+ }
+ break;
+
+ case ALPHA_R_LITUSE:
+ /* See ALPHA_R_LITERAL above for the uses of this reloc. It
+ does not cause anything to happen, itself. */
+ rel->address += input_section->output_offset;
+ break;
+
+ case ALPHA_R_GPDISP:
+ /* This marks the ldah of an ldah/lda pair which loads the
+ gp register with the difference of the gp value and the
+ current location. The second of the pair is r_size bytes
+ ahead, and is marked with an ALPHA_R_IGNORE reloc. */
+ {
+ unsigned long insn1, insn2;
+ bfd_vma addend;
+
+ BFD_ASSERT (reloc_vector[1] != NULL
+ && reloc_vector[1]->howto->type == ALPHA_R_IGNORE
+ && (rel->address + rel->addend
+ == reloc_vector[1]->address));
+
+ /* Get the two instructions. */
+ insn1 = bfd_get_32 (input_bfd, data + rel->address);
+ insn2 = bfd_get_32 (input_bfd, data + rel->address + rel->addend);
+
+ BFD_ASSERT (((insn1 >> 26) & 0x3f) == 0x09); /* ldah */
+ BFD_ASSERT (((insn2 >> 26) & 0x3f) == 0x08); /* lda */
+
+ /* Get the existing addend. We must account for the sign
+ extension done by lda and ldah. */
+ addend = ((insn1 & 0xffff) << 16) + (insn2 & 0xffff);
+ if (insn1 & 0x8000)
+ {
+ addend -= 0x80000000;
+ addend -= 0x80000000;
+ }
+ if (insn2 & 0x8000)
+ addend -= 0x10000;
+
+ /* The existing addend includes the different between the
+ gp of the input BFD and the address in the input BFD.
+ Subtract this out. */
+ addend -= (reloc_vector[1]->addend
+ - (input_section->vma + rel->address));
+
+ /* Now add in the final gp value, and subtract out the
+ final address. */
+ addend += (gp
+ - (input_section->output_section->vma
+ + input_section->output_offset
+ + rel->address));
+
+ /* Change the instructions, accounting for the sign
+ extension, and write them out. */
+ if (addend & 0x8000)
+ addend += 0x10000;
+ insn1 = (insn1 & 0xffff0000) | ((addend >> 16) & 0xffff);
+ insn2 = (insn2 & 0xffff0000) | (addend & 0xffff);
+
+ bfd_put_32 (input_bfd, (bfd_vma) insn1, data + rel->address);
+ bfd_put_32 (input_bfd, (bfd_vma) insn2,
+ data + rel->address + rel->addend);
+
+ rel->address += input_section->output_offset;
+ }
+ break;
+
+ case ALPHA_R_OP_PUSH:
+ /* Push a value on the reloc evaluation stack. */
+ {
+ asymbol *symbol;
+ bfd_vma relocation;
+
+ if (relocateable)
+ {
+ rel->address += input_section->output_offset;
+ break;
+ }
+
+ /* Figure out the relocation of this symbol. */
+ symbol = *rel->sym_ptr_ptr;
+
+ if (symbol->section == &bfd_und_section)
+ r = bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += rel->addend;
+
+ if (tos >= RELOC_STACKSIZE)
+ abort ();
+
+ stack[tos++] = relocation;
+ }
+ break;
+
+ case ALPHA_R_OP_STORE:
+ /* Store a value from the reloc stack into a bitfield. */
+ {
+ bfd_vma val;
+ int offset, size;
+
+ if (relocateable)
+ {
+ rel->address += input_section->output_offset;
+ break;
+ }
+
+ if (tos == 0)
+ abort ();
+
+ /* The offset and size for this reloc are encoded into the
+ addend field by alpha_adjust_reloc_in. */
+ offset = (rel->addend >> 8) & 0xff;
+ size = rel->addend & 0xff;
+
+ val = bfd_get_64 (abfd, data + rel->address);
+ val &=~ (((1 << size) - 1) << offset);
+ val |= (stack[--tos] & ((1 << size) - 1)) << offset;
+ bfd_put_64 (abfd, val, data + rel->address);
+ }
+ break;
+
+ case ALPHA_R_OP_PSUB:
+ /* Subtract a value from the top of the stack. */
+ {
+ asymbol *symbol;
+ bfd_vma relocation;
+
+ if (relocateable)
+ {
+ rel->address += input_section->output_offset;
+ break;
+ }
+
+ /* Figure out the relocation of this symbol. */
+ symbol = *rel->sym_ptr_ptr;
+
+ if (symbol->section == &bfd_und_section)
+ r = bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += rel->addend;
+
+ if (tos == 0)
+ abort ();
+
+ stack[tos - 1] -= relocation;
+ }
+ break;
+
+ case ALPHA_R_OP_PRSHIFT:
+ /* Shift the value on the top of the stack. */
+ {
+ asymbol *symbol;
+ bfd_vma relocation;
+
+ if (relocateable)
+ {
+ rel->address += input_section->output_offset;
+ break;
+ }
+
+ /* Figure out the relocation of this symbol. */
+ symbol = *rel->sym_ptr_ptr;
+
+ if (symbol->section == &bfd_und_section)
+ r = bfd_reloc_undefined;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += rel->addend;
+
+ if (tos == 0)
+ abort ();
+
+ stack[tos - 1] >>= relocation;
+ }
+ break;
+
+ case ALPHA_R_GPVALUE:
+ /* I really don't know if this does the right thing. */
+ gp = rel->addend;
+ gp_undefined = false;
+ break;
+
+ default:
+ abort ();
+ }
+
+ if (relocateable)
+ {
+ asection *os = input_section->output_section;
+
+ /* A partial link, so keep the relocs. */
+ os->orelocation[os->reloc_count] = rel;
+ os->reloc_count++;
+ }
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ case bfd_reloc_undefined:
+ if (! ((*link_info->callbacks->undefined_symbol)
+ (link_info, bfd_asymbol_name (*rel->sym_ptr_ptr),
+ input_bfd, input_section, rel->address)))
+ return NULL;
+ break;
+ case bfd_reloc_dangerous:
+ if (! ((*link_info->callbacks->reloc_dangerous)
+ (link_info, err, input_bfd, input_section,
+ rel->address)))
+ return NULL;
+ break;
+ case bfd_reloc_overflow:
+ if (! ((*link_info->callbacks->reloc_overflow)
+ (link_info, input_bfd, input_section, rel->address)))
+ return NULL;
+ break;
+ case bfd_reloc_outofrange:
+ default:
+ abort ();
+ break;
+ }
+ }
}
+
+ if (tos != 0)
+ abort ();
+
+ return data;
}
-/* Swap a reloc out. */
+/* Get the howto structure for a generic reloc type. */
-static void
-alpha_ecoff_swap_reloc_out (abfd, intern, dst)
+static CONST struct reloc_howto_struct *
+alpha_bfd_reloc_type_lookup (abfd, code)
bfd *abfd;
- const struct internal_reloc *intern;
- PTR dst;
+ bfd_reloc_code_real_type code;
{
- RELOC *ext = (RELOC *) dst;
+ int alpha_type;
- bfd_h_put_32 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr);
- if (abfd->xvec->header_byteorder_big_p != false)
+ switch (code)
{
- ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG;
- ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG;
- ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG;
- ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG)
- & RELOC_BITS3_TYPE_BIG)
- | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0));
+ case BFD_RELOC_32:
+ alpha_type = ALPHA_R_REFLONG;
+ break;
+ case BFD_RELOC_64:
+ alpha_type = ALPHA_R_REFQUAD;
+ break;
+ case BFD_RELOC_GPREL32:
+ alpha_type = ALPHA_R_GPREL32;
+ break;
+ case BFD_RELOC_ALPHA_LITERAL:
+ alpha_type = ALPHA_R_LITERAL;
+ break;
+ case BFD_RELOC_ALPHA_LITUSE:
+ alpha_type = ALPHA_R_LITUSE;
+ break;
+ case BFD_RELOC_ALPHA_GPDISP_HI16:
+ alpha_type = ALPHA_R_GPDISP;
+ break;
+ case BFD_RELOC_ALPHA_GPDISP_LO16:
+ alpha_type = ALPHA_R_IGNORE;
+ break;
+ case BFD_RELOC_23_PCREL_S2:
+ alpha_type = ALPHA_R_BRADDR;
+ break;
+ case BFD_RELOC_ALPHA_HINT:
+ alpha_type = ALPHA_R_HINT;
+ break;
+ case BFD_RELOC_16_PCREL:
+ alpha_type = ALPHA_R_SREL16;
+ break;
+ case BFD_RELOC_32_PCREL:
+ alpha_type = ALPHA_R_SREL32;
+ break;
+ case BFD_RELOC_64_PCREL:
+ alpha_type = ALPHA_R_SREL64;
+ break;
+#if 0
+ case ???:
+ alpha_type = ALPHA_R_OP_PUSH;
+ break;
+ case ???:
+ alpha_type = ALPHA_R_OP_STORE;
+ break;
+ case ???:
+ alpha_type = ALPHA_R_OP_PSUB;
+ break;
+ case ???:
+ alpha_type = ALPHA_R_OP_PRSHIFT;
+ break;
+ case ???:
+ alpha_type = ALPHA_R_GPVALUE;
+ break;
+#endif
+ default:
+ return (CONST struct reloc_howto_struct *) NULL;
+ }
+
+ return &alpha_howto_table[alpha_type];
+}
+
+/* A helper routine for alpha_relocate_section which converts an
+ external reloc when generating relocateable output. Returns the
+ relocation amount. */
+
+static bfd_vma
+alpha_convert_external_reloc (output_bfd, info, input_bfd, ext_rel, h)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ struct external_reloc *ext_rel;
+ struct ecoff_link_hash_entry *h;
+{
+ unsigned long r_symndx;
+ bfd_vma relocation;
+
+ BFD_ASSERT (info->relocateable);
+
+ if (h->root.type == bfd_link_hash_defined)
+ {
+ asection *hsec;
+ const char *name;
+
+ /* This symbol is defined in the output. Convert the reloc from
+ being against the symbol to being against the section. */
+
+ /* Clear the r_extern bit. */
+ ext_rel->r_bits[1] &=~ RELOC_BITS1_EXTERN_LITTLE;
+
+ /* Compute a new r_symndx value. */
+ hsec = h->root.u.def.section;
+ name = bfd_get_section_name (output_bfd, hsec->output_section);
+
+ r_symndx = -1;
+ switch (name[1])
+ {
+ case 'A':
+ if (strcmp (name, "*ABS*") == 0)
+ r_symndx = RELOC_SECTION_ABS;
+ break;
+ case 'b':
+ if (strcmp (name, ".bss") == 0)
+ r_symndx = RELOC_SECTION_BSS;
+ break;
+ case 'd':
+ if (strcmp (name, ".data") == 0)
+ r_symndx = RELOC_SECTION_DATA;
+ break;
+ case 'f':
+ if (strcmp (name, ".fini") == 0)
+ r_symndx = RELOC_SECTION_FINI;
+ break;
+ case 'i':
+ if (strcmp (name, ".init") == 0)
+ r_symndx = RELOC_SECTION_INIT;
+ break;
+ case 'l':
+ if (strcmp (name, ".lita") == 0)
+ r_symndx = RELOC_SECTION_LITA;
+ else if (strcmp (name, ".lit8") == 0)
+ r_symndx = RELOC_SECTION_LIT8;
+ else if (strcmp (name, ".lit4") == 0)
+ r_symndx = RELOC_SECTION_LIT4;
+ break;
+ case 'p':
+ if (strcmp (name, ".pdata") == 0)
+ r_symndx = RELOC_SECTION_PDATA;
+ break;
+ case 'r':
+ if (strcmp (name, ".rdata") == 0)
+ r_symndx = RELOC_SECTION_RDATA;
+ break;
+ case 's':
+ if (strcmp (name, ".sdata") == 0)
+ r_symndx = RELOC_SECTION_SDATA;
+ else if (strcmp (name, ".sbss") == 0)
+ r_symndx = RELOC_SECTION_SBSS;
+ break;
+ case 't':
+ if (strcmp (name, ".text") == 0)
+ r_symndx = RELOC_SECTION_TEXT;
+ break;
+ case 'x':
+ if (strcmp (name, ".xdata") == 0)
+ r_symndx = RELOC_SECTION_XDATA;
+ break;
+ }
+
+ if (r_symndx == -1)
+ abort ();
+
+ /* Add the section VMA and the symbol value. */
+ relocation = (h->root.u.def.value
+ + hsec->output_section->vma
+ + hsec->output_offset);
}
else
{
- ext->r_bits[0] = intern->r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE;
- ext->r_bits[1] = intern->r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE;
- ext->r_bits[2] = intern->r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE;
- ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE)
- & RELOC_BITS3_TYPE_LITTLE)
- | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0));
+ /* Change the symndx value to the right one for
+ the output BFD. */
+ r_symndx = h->indx;
+ if (r_symndx == -1)
+ {
+ /* Caller must give an error. */
+ r_symndx = 0;
+ }
+ relocation = 0;
}
+
+ /* Write out the new r_symndx value. */
+ bfd_h_put_32 (input_bfd, (bfd_vma) r_symndx,
+ (bfd_byte *) ext_rel->r_symndx);
+
+ return relocation;
+}
+
+/* Relocate a section while linking an Alpha ECOFF file. This is
+ quite similar to get_relocated_section_contents. Perhaps they
+ could be combined somehow. */
+
+static boolean
+alpha_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, external_relocs)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ PTR external_relocs;
+{
+ asection **symndx_to_section;
+ struct ecoff_link_hash_entry **sym_hashes;
+ bfd_vma gp;
+ boolean gp_undefined;
+ bfd_vma stack[RELOC_STACKSIZE];
+ int tos = 0;
+ struct external_reloc *ext_rel;
+ struct external_reloc *ext_rel_end;
+
+ /* We keep a table mapping the symndx found in an internal reloc to
+ the appropriate section. This is faster than looking up the
+ section by name each time. */
+ symndx_to_section = ecoff_data (input_bfd)->symndx_to_section;
+ if (symndx_to_section == (asection **) NULL)
+ {
+ symndx_to_section = ((asection **)
+ bfd_alloc (input_bfd,
+ (NUM_RELOC_SECTIONS
+ * sizeof (asection *))));
+
+ symndx_to_section[RELOC_SECTION_NONE] = NULL;
+ symndx_to_section[RELOC_SECTION_TEXT] =
+ bfd_get_section_by_name (input_bfd, ".text");
+ symndx_to_section[RELOC_SECTION_RDATA] =
+ bfd_get_section_by_name (input_bfd, ".rdata");
+ symndx_to_section[RELOC_SECTION_DATA] =
+ bfd_get_section_by_name (input_bfd, ".data");
+ symndx_to_section[RELOC_SECTION_SDATA] =
+ bfd_get_section_by_name (input_bfd, ".sdata");
+ symndx_to_section[RELOC_SECTION_SBSS] =
+ bfd_get_section_by_name (input_bfd, ".sbss");
+ symndx_to_section[RELOC_SECTION_BSS] =
+ bfd_get_section_by_name (input_bfd, ".bss");
+ symndx_to_section[RELOC_SECTION_INIT] =
+ bfd_get_section_by_name (input_bfd, ".init");
+ symndx_to_section[RELOC_SECTION_LIT8] =
+ bfd_get_section_by_name (input_bfd, ".lit8");
+ symndx_to_section[RELOC_SECTION_LIT4] =
+ bfd_get_section_by_name (input_bfd, ".lit4");
+ symndx_to_section[RELOC_SECTION_XDATA] =
+ bfd_get_section_by_name (input_bfd, ".xdata");
+ symndx_to_section[RELOC_SECTION_PDATA] =
+ bfd_get_section_by_name (input_bfd, ".pdata");
+ symndx_to_section[RELOC_SECTION_FINI] =
+ bfd_get_section_by_name (input_bfd, ".fini");
+ symndx_to_section[RELOC_SECTION_LITA] =
+ bfd_get_section_by_name (input_bfd, ".lita");
+ symndx_to_section[RELOC_SECTION_ABS] = &bfd_abs_section;
+
+ ecoff_data (input_bfd)->symndx_to_section = symndx_to_section;
+ }
+
+ sym_hashes = ecoff_data (input_bfd)->sym_hashes;
+
+ gp = ecoff_data (output_bfd)->gp;
+ if (gp == 0)
+ gp_undefined = true;
+ else
+ gp_undefined = false;
+
+ BFD_ASSERT (output_bfd->xvec->header_byteorder_big_p == false);
+ BFD_ASSERT (input_bfd->xvec->header_byteorder_big_p == false);
+
+ ext_rel = (struct external_reloc *) external_relocs;
+ ext_rel_end = ext_rel + input_section->reloc_count;
+ for (; ext_rel < ext_rel_end; ext_rel++)
+ {
+ bfd_vma r_vaddr;
+ unsigned long r_symndx;
+ int r_type;
+ int r_extern;
+ int r_offset;
+ int r_size;
+ boolean relocatep;
+ boolean adjust_addrp;
+ boolean gp_usedp;
+ bfd_vma addend;
+
+ r_vaddr = bfd_h_get_64 (input_bfd, (bfd_byte *) ext_rel->r_vaddr);
+ r_symndx = bfd_h_get_32 (input_bfd, (bfd_byte *) ext_rel->r_symndx);
+
+ r_type = ((ext_rel->r_bits[0] & RELOC_BITS0_TYPE_LITTLE)
+ >> RELOC_BITS0_TYPE_SH_LITTLE);
+ r_extern = (ext_rel->r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0;
+ r_offset = ((ext_rel->r_bits[1] & RELOC_BITS1_OFFSET_LITTLE)
+ >> RELOC_BITS1_OFFSET_SH_LITTLE);
+ /* Ignored the reserved bits. */
+ r_size = ((ext_rel->r_bits[3] & RELOC_BITS3_SIZE_LITTLE)
+ >> RELOC_BITS3_SIZE_SH_LITTLE);
+
+ relocatep = false;
+ adjust_addrp = true;
+ gp_usedp = false;
+ addend = 0;
+
+ switch (r_type)
+ {
+ default:
+ abort ();
+
+ case ALPHA_R_IGNORE:
+ /* This reloc appears after a GPDISP reloc. It marks the
+ position of the second instruction to be altered by the
+ GPDISP reloc, but is not otherwise used for anything.
+ For some reason, the address of the relocation does not
+ appear to include the section VMA, unlike the other
+ relocation types. */
+ if (info->relocateable)
+ bfd_h_put_64 (input_bfd,
+ input_section->output_offset + r_vaddr,
+ (bfd_byte *) ext_rel->r_vaddr);
+ adjust_addrp = false;
+ break;
+
+ case ALPHA_R_REFLONG:
+ case ALPHA_R_REFQUAD:
+ case ALPHA_R_BRADDR:
+ case ALPHA_R_HINT:
+ case ALPHA_R_SREL16:
+ case ALPHA_R_SREL32:
+ case ALPHA_R_SREL64:
+ relocatep = true;
+ break;
+
+ case ALPHA_R_GPREL32:
+ /* This relocation is used in a switch table. It is a 32
+ bit offset from the current GP value. We must adjust it
+ by the different between the original GP value and the
+ current GP value. */
+ relocatep = true;
+ addend = ecoff_data (input_bfd)->gp - gp;
+ gp_usedp = true;
+ break;
+
+ case ALPHA_R_LITERAL:
+ /* This is a reference to a literal value, generally
+ (always?) in the .lita section. This is a 16 bit GP
+ relative relocation. Sometimes the subsequent reloc is a
+ LITUSE reloc, which indicates how this reloc is used.
+ This sometimes permits rewriting the two instructions
+ referred to by the LITERAL and the LITUSE into different
+ instructions which do not refer to .lita. This can save
+ a memory reference, and permits removing a value from
+ .lita thus saving GP relative space.
+
+ We do not these optimizations. To do them we would need
+ to arrange to link the .lita section first, so that by
+ the time we got here we would know the final values to
+ use. This would not be particularly difficult, but it is
+ not currently implemented. */
+
+ /* I believe that the LITERAL reloc will only apply to a ldq
+ instruction, so check my assumption. */
+ BFD_ASSERT (((bfd_get_32 (input_bfd,
+ contents + r_vaddr - input_section->vma)
+ >> 26)
+ & 0x3f)
+ == 0x29);
+
+ relocatep = true;
+ addend = ecoff_data (input_bfd)->gp - gp;
+ gp_usedp = true;
+ break;
+
+ case ALPHA_R_LITUSE:
+ /* See ALPHA_R_LITERAL above for the uses of this reloc. It
+ does not cause anything to happen, itself. */
+ break;
+
+ case ALPHA_R_GPDISP:
+ /* This marks the ldah of an ldah/lda pair which loads the
+ gp register with the difference of the gp value and the
+ current location. The second of the pair is r_symndx
+ bytes ahead, and is also marked with an ALPHA_R_IGNORE
+ reloc. */
+ {
+ unsigned long insn1, insn2;
+
+ BFD_ASSERT (ext_rel + 1 < ext_rel_end
+ && (((ext_rel + 1)->r_bits[0]
+ & RELOC_BITS0_TYPE_LITTLE)
+ >> RELOC_BITS0_TYPE_SH_LITTLE) == ALPHA_R_IGNORE
+ && (bfd_h_get_64 (input_bfd,
+ (bfd_byte *) (ext_rel + 1)->r_vaddr)
+ == r_vaddr - input_section->vma + r_symndx));
+
+ /* Get the two instructions. */
+ insn1 = bfd_get_32 (input_bfd,
+ contents + r_vaddr - input_section->vma);
+ insn2 = bfd_get_32 (input_bfd,
+ (contents
+ + r_vaddr
+ - input_section->vma
+ + r_symndx));
+
+ BFD_ASSERT (((insn1 >> 26) & 0x3f) == 0x09); /* ldah */
+ BFD_ASSERT (((insn2 >> 26) & 0x3f) == 0x08); /* lda */
+
+ /* Get the existing addend. We must account for the sign
+ extension done by lda and ldah. */
+ addend = ((insn1 & 0xffff) << 16) + (insn2 & 0xffff);
+ if (insn1 & 0x8000)
+ {
+ /* This is addend -= 0x100000000 without causing an
+ integer overflow on a 32 bit host. */
+ addend -= 0x80000000;
+ addend -= 0x80000000;
+ }
+ if (insn2 & 0x8000)
+ addend -= 0x10000;
+
+ /* The existing addend includes the difference between the
+ gp of the input BFD and the address in the input BFD.
+ We want to change this to the difference between the
+ final GP and the final address. */
+ addend += (gp
+ - ecoff_data (input_bfd)->gp
+ + input_section->vma
+ - (input_section->output_section->vma
+ + input_section->output_offset));
+
+ /* Change the instructions, accounting for the sign
+ extension, and write them out. */
+ if (addend & 0x8000)
+ addend += 0x10000;
+ insn1 = (insn1 & 0xffff0000) | ((addend >> 16) & 0xffff);
+ insn2 = (insn2 & 0xffff0000) | (addend & 0xffff);
+
+ bfd_put_32 (input_bfd, (bfd_vma) insn1,
+ contents + r_vaddr - input_section->vma);
+ bfd_put_32 (input_bfd, (bfd_vma) insn2,
+ contents + r_vaddr - input_section->vma + r_symndx);
+
+ gp_usedp = true;
+ }
+ break;
+
+ case ALPHA_R_OP_PUSH:
+ case ALPHA_R_OP_PSUB:
+ case ALPHA_R_OP_PRSHIFT:
+ /* Manipulate values on the reloc evaluation stack. The
+ r_vaddr field is not an address in input_section, it is
+ the current value (including any addend) of the object
+ being used. */
+ if (! r_extern)
+ {
+ asection *s;
+
+ s = symndx_to_section[r_symndx];
+ if (s == (asection *) NULL)
+ abort ();
+ addend = s->output_section->vma + s->output_offset - s->vma;
+ }
+ else
+ {
+ struct ecoff_link_hash_entry *h;
+
+ h = sym_hashes[r_symndx];
+ if (h == (struct ecoff_link_hash_entry *) NULL)
+ abort ();
+
+ if (! info->relocateable)
+ {
+ if (h->root.type == bfd_link_hash_defined)
+ addend = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ else
+ {
+ /* Note that we pass the address as 0, since we
+ do not have a meaningful number for the
+ location within the section that is being
+ relocated. */
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, (bfd_vma) 0)))
+ return false;
+ addend = 0;
+ }
+ }
+ else
+ {
+ if (h->root.type != bfd_link_hash_defined
+ && h->indx == -1)
+ {
+ /* This symbol is not being written out. Pass
+ the address as 0, as with undefined_symbol,
+ above. */
+ if (! ((*info->callbacks->unattached_reloc)
+ (info, h->root.root.string, input_bfd,
+ input_section, (bfd_vma) 0)))
+ return false;
+ }
+
+ addend = alpha_convert_external_reloc (output_bfd, info,
+ input_bfd,
+ ext_rel, h);
+ }
+ }
+
+ addend += r_vaddr;
+
+ if (info->relocateable)
+ {
+ /* Adjust r_vaddr by the addend. */
+ bfd_h_put_64 (input_bfd, addend,
+ (bfd_byte *) ext_rel->r_vaddr);
+ }
+ else
+ {
+ switch (r_type)
+ {
+ case ALPHA_R_OP_PUSH:
+ if (tos >= RELOC_STACKSIZE)
+ abort ();
+ stack[tos++] = addend;
+ break;
+
+ case ALPHA_R_OP_PSUB:
+ if (tos == 0)
+ abort ();
+ stack[tos - 1] -= addend;
+ break;
+
+ case ALPHA_R_OP_PRSHIFT:
+ if (tos == 0)
+ abort ();
+ stack[tos - 1] >>= addend;
+ break;
+ }
+ }
+
+ adjust_addrp = false;
+ break;
+
+ case ALPHA_R_OP_STORE:
+ /* Store a value from the reloc stack into a bitfield. If
+ we are generating relocateable output, all we do is
+ adjust the address of the reloc. */
+ if (! info->relocateable)
+ {
+ bfd_vma val;
+
+ if (tos == 0)
+ abort ();
+
+ /* FIXME: I don't know what kind of overflow checking,
+ if any, should be done here. */
+ val = bfd_get_64 (input_bfd,
+ contents + r_vaddr - input_section->vma);
+ val &=~ (((1 << r_size) - 1) << r_offset);
+ val |= (stack[--tos] & ((1 << r_size) - 1)) << r_offset;
+ bfd_put_64 (input_bfd, val,
+ contents + r_vaddr - input_section->vma);
+ }
+ break;
+
+ case ALPHA_R_GPVALUE:
+ /* I really don't know if this does the right thing. */
+ gp = ecoff_data (input_bfd)->gp + r_symndx;
+ gp_undefined = false;
+ break;
+ }
+
+ if (relocatep)
+ {
+ reloc_howto_type *howto;
+ struct ecoff_link_hash_entry *h = NULL;
+ asection *s = NULL;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+
+ /* Perform a relocation. */
+
+ howto = &alpha_howto_table[r_type];
+
+ if (r_extern)
+ {
+ h = sym_hashes[r_symndx];
+ /* If h is NULL, that means that there is a reloc
+ against an external symbol which we thought was just
+ a debugging symbol. This should not happen. */
+ if (h == (struct ecoff_link_hash_entry *) NULL)
+ abort ();
+ }
+ else
+ {
+ if (r_symndx < 0 || r_symndx >= NUM_RELOC_SECTIONS)
+ s = NULL;
+ else
+ s = symndx_to_section[r_symndx];
+
+ if (s == (asection *) NULL)
+ abort ();
+ }
+
+ if (info->relocateable)
+ {
+ /* We are generating relocateable output, and must
+ convert the existing reloc. */
+ if (r_extern)
+ {
+ if (h->root.type != bfd_link_hash_defined
+ && h->indx == -1)
+ {
+ /* This symbol is not being written out. */
+ if (! ((*info->callbacks->unattached_reloc)
+ (info, h->root.root.string, input_bfd,
+ input_section, r_vaddr - input_section->vma)))
+ return false;
+ }
+
+ relocation = alpha_convert_external_reloc (output_bfd,
+ info,
+ input_bfd,
+ ext_rel,
+ h);
+ }
+ else
+ {
+ /* This is a relocation against a section. Adjust
+ the value by the amount the section moved. */
+ relocation = (s->output_section->vma
+ + s->output_offset
+ - s->vma);
+ }
+
+ /* If this is PC relative, the existing object file
+ appears to already have the reloc worked out. We
+ must subtract out the old value and add in the new
+ one. */
+ if (howto->pc_relative)
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ - input_section->vma);
+
+ /* Put in any addend. */
+ relocation += addend;
+
+ /* Adjust the contents. */
+ r = _bfd_relocate_contents (howto, input_bfd, relocation,
+ (contents
+ + r_vaddr
+ - input_section->vma));
+ }
+ else
+ {
+ /* We are producing a final executable. */
+ if (r_extern)
+ {
+ /* This is a reloc against a symbol. */
+ if (h->root.type == bfd_link_hash_defined)
+ {
+ asection *hsec;
+
+ hsec = h->root.u.def.section;
+ relocation = (h->root.u.def.value
+ + hsec->output_section->vma
+ + hsec->output_offset);
+ }
+ else
+ {
+ if (! ((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section,
+ r_vaddr - input_section->vma)))
+ return false;
+ relocation = 0;
+ }
+ }
+ else
+ {
+ /* This is a reloc against a section. */
+ relocation = (s->output_section->vma
+ + s->output_offset
+ - s->vma);
+
+ /* Adjust a PC relative relocation by removing the
+ reference to the original source section. */
+ if (howto->pc_relative)
+ relocation += input_section->vma;
+ }
+
+ r = _bfd_final_link_relocate (howto,
+ input_bfd,
+ input_section,
+ contents,
+ r_vaddr - input_section->vma,
+ relocation,
+ addend);
+ }
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ case bfd_reloc_overflow:
+ if (! ((*info->callbacks->reloc_overflow)
+ (info, input_bfd, input_section,
+ r_vaddr - input_section->vma)))
+ return false;
+ break;
+ }
+ }
+ }
+
+ if (info->relocateable && adjust_addrp)
+ {
+ /* Change the address of the relocation. */
+ bfd_h_put_64 (input_bfd,
+ (input_section->output_section->vma
+ + input_section->output_offset
+ - input_section->vma
+ + r_vaddr),
+ (bfd_byte *) ext_rel->r_vaddr);
+ }
+
+ if (gp_usedp && gp_undefined)
+ {
+ if (! ((*info->callbacks->reloc_dangerous)
+ (info, "GP relative relocation when GP not defined",
+ input_bfd, input_section, r_vaddr - input_section->vma)))
+ return false;
+ /* Only give the error once per link. */
+ ecoff_data (output_bfd)->gp = gp = 4;
+ gp_undefined = false;
+ }
+ }
+
+ if (tos != 0)
+ abort ();
+
+ return true;
}
#define ecoff_core_file_p _bfd_dummy_target
@@ -272,28 +1793,96 @@ alpha_ecoff_swap_reloc_out (abfd, intern, dst)
#define ecoff_core_file_matches_executable_p \
_bfd_dummy_core_file_matches_executable_p
-/* This is the COFF backend structure. The backend_data field of the
- bfd_target structure is set to this. The section reading code in
- coffgen.c uses this structure. */
-
-static CONST bfd_coff_backend_data alpha_ecoff_std_swap_table = {
- (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */
- (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */
- (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */
- (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */
- (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */
- (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */
- (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */
- alpha_ecoff_swap_filehdr_out, alpha_ecoff_swap_aouthdr_out,
- alpha_ecoff_swap_scnhdr_out,
- FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
- alpha_ecoff_swap_filehdr_in, alpha_ecoff_swap_aouthdr_in,
- alpha_ecoff_swap_scnhdr_in, alpha_ecoff_bad_format_hook,
- ecoff_set_arch_mach_hook, alpha_ecoff_mkobject_hook,
- ecoff_styp_to_sec_flags, ecoff_make_section_hook, ecoff_set_alignment_hook,
- ecoff_slurp_symbol_table
+/* This is the ECOFF backend structure. The backend field of the
+ target vector points to this. */
+
+static const struct ecoff_backend_data alpha_ecoff_backend_data =
+{
+ /* COFF backend structure. */
+ {
+ (void (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_in */
+ (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */
+ (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */
+ (unsigned (*) PARAMS ((bfd *,PTR,int,int,PTR))) bfd_void, /* aux_out */
+ (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */
+ (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */
+ (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */
+ alpha_ecoff_swap_filehdr_out, alpha_ecoff_swap_aouthdr_out,
+ alpha_ecoff_swap_scnhdr_out,
+ FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, true,
+ alpha_ecoff_swap_filehdr_in, alpha_ecoff_swap_aouthdr_in,
+ alpha_ecoff_swap_scnhdr_in, alpha_ecoff_bad_format_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_alpha,
+ /* Initial portion of armap string. */
+ "________64",
+ /* The page boundary used to align sections in a demand-paged
+ executable file. E.g., 0x1000. */
+ 0x2000,
+ /* 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. */
+ true,
+ /* Bitsize of constructor entries. */
+ 64,
+ /* Reloc to use for constructor entries. */
+ &alpha_howto_table[ALPHA_R_REFQUAD],
+ {
+ /* Symbol table magic number. */
+ magicSym2,
+ /* Alignment of debugging information. E.g., 4. */
+ 8,
+ /* Sizes of external symbolic information. */
+ sizeof (struct hdr_ext),
+ sizeof (struct dnr_ext),
+ sizeof (struct pdr_ext),
+ sizeof (struct sym_ext),
+ sizeof (struct opt_ext),
+ sizeof (struct fdr_ext),
+ sizeof (struct rfd_ext),
+ sizeof (struct ext_ext),
+ /* Functions to swap in external symbolic data. */
+ ecoff_swap_hdr_in,
+ ecoff_swap_dnr_in,
+ ecoff_swap_pdr_in,
+ ecoff_swap_sym_in,
+ ecoff_swap_opt_in,
+ ecoff_swap_fdr_in,
+ ecoff_swap_rfd_in,
+ ecoff_swap_ext_in,
+ /* Functions to swap out external symbolic data. */
+ ecoff_swap_hdr_out,
+ ecoff_swap_dnr_out,
+ ecoff_swap_pdr_out,
+ ecoff_swap_sym_out,
+ ecoff_swap_opt_out,
+ ecoff_swap_fdr_out,
+ ecoff_swap_rfd_out,
+ ecoff_swap_ext_out
+ },
+ /* External reloc size. */
+ RELSZ,
+ /* Reloc swapping functions. */
+ alpha_ecoff_swap_reloc_in,
+ alpha_ecoff_swap_reloc_out,
+ /* Backend reloc tweaking. */
+ alpha_adjust_reloc_in,
+ alpha_adjust_reloc_out,
+ /* Relocate section contents while linking. */
+ alpha_relocate_section
};
+/* Looking up a reloc type is Alpha specific. */
+#define ecoff_bfd_reloc_type_lookup alpha_bfd_reloc_type_lookup
+
+/* So is getting relocated section contents. */
+#define ecoff_bfd_get_relocated_section_contents \
+ alpha_ecoff_get_relocated_section_contents
+
bfd_target ecoffalpha_little_vec =
{
"ecoff-littlealpha", /* name */
@@ -303,7 +1892,7 @@ bfd_target ecoffalpha_little_vec =
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* sect
flags */
@@ -311,19 +1900,19 @@ bfd_target ecoffalpha_little_vec =
' ', /* ar_pad_char */
15, /* ar_max_namelen */
4, /* minimum alignment power */
- _do_getl64, _do_getl_signed_64, _do_putl64,
- _do_getl32, _do_getl_signed_32, _do_putl32,
- _do_getl16, _do_getl_signed_16, _do_putl16, /* data */
- _do_getl64, _do_getl_signed_64, _do_putl64,
- _do_getl32, _do_getl_signed_32, _do_putl32,
- _do_getl16, _do_getl_signed_16, _do_putl16, /* hdrs */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
{_bfd_dummy_target, coff_object_p, /* bfd_check_format */
ecoff_archive_p, _bfd_dummy_target},
- {bfd_false, alpha_ecoff_mkobject, /* bfd_set_format */
+ {bfd_false, ecoff_mkobject, /* bfd_set_format */
_bfd_generic_mkarchive, bfd_false},
{bfd_false, ecoff_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
JUMP_TABLE (ecoff),
- (PTR) &alpha_ecoff_std_swap_table
+ (PTR) &alpha_ecoff_backend_data
};