diff options
Diffstat (limited to 'binutils-2.17/bfd/coff-alpha.c')
| -rw-r--r-- | binutils-2.17/bfd/coff-alpha.c | 2424 |
1 files changed, 0 insertions, 2424 deletions
diff --git a/binutils-2.17/bfd/coff-alpha.c b/binutils-2.17/bfd/coff-alpha.c deleted file mode 100644 index d9b89050..00000000 --- a/binutils-2.17/bfd/coff-alpha.c +++ /dev/null @@ -1,2424 +0,0 @@ -/* BFD back-end for ALPHA Extended-Coff files. - Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, - 2003, 2004, 2005 Free Software Foundation, Inc. - Modified from coff-mips.c by Steve Chamberlain <sac@cygnus.com> and - Ian Lance Taylor <ian@cygnus.com>. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bfdlink.h" -#include "libbfd.h" -#include "coff/internal.h" -#include "coff/sym.h" -#include "coff/symconst.h" -#include "coff/ecoff.h" -#include "coff/alpha.h" -#include "aout/ar.h" -#include "libcoff.h" -#include "libecoff.h" - -/* Prototypes for static functions. */ - -static const bfd_target *alpha_ecoff_object_p - PARAMS ((bfd *)); -static bfd_boolean alpha_ecoff_bad_format_hook - PARAMS ((bfd *abfd, PTR filehdr)); -static PTR alpha_ecoff_mkobject_hook - PARAMS ((bfd *, 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 reloc_howto_type *alpha_bfd_reloc_type_lookup - PARAMS ((bfd *, bfd_reloc_code_real_type)); -static bfd_byte *alpha_ecoff_get_relocated_section_contents - PARAMS ((bfd *abfd, struct bfd_link_info *, struct bfd_link_order *, - bfd_byte *data, bfd_boolean relocatable, 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 bfd_boolean alpha_relocate_section - PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, PTR)); -static bfd_boolean alpha_adjust_headers - PARAMS ((bfd *, struct internal_filehdr *, struct internal_aouthdr *)); -static PTR alpha_ecoff_read_ar_hdr - PARAMS ((bfd *)); -static bfd *alpha_ecoff_get_elt_at_filepos - PARAMS ((bfd *, file_ptr)); -static bfd *alpha_ecoff_openr_next_archived_file - PARAMS ((bfd *, bfd *)); -static bfd *alpha_ecoff_get_elt_at_index - PARAMS ((bfd *, symindex)); - -/* 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 - routines in coffgen.c, but, unlike the real COFF targets, do not - use coffcode.h itself. - - Get the generic COFF swapping routines, except for the reloc, - symbol, and lineno ones. Give them ecoff names. Define some - accessor macros for the large sizes used for Alpha ECOFF. */ - -#define GET_FILEHDR_SYMPTR H_GET_64 -#define PUT_FILEHDR_SYMPTR H_PUT_64 -#define GET_AOUTHDR_TSIZE H_GET_64 -#define PUT_AOUTHDR_TSIZE H_PUT_64 -#define GET_AOUTHDR_DSIZE H_GET_64 -#define PUT_AOUTHDR_DSIZE H_PUT_64 -#define GET_AOUTHDR_BSIZE H_GET_64 -#define PUT_AOUTHDR_BSIZE H_PUT_64 -#define GET_AOUTHDR_ENTRY H_GET_64 -#define PUT_AOUTHDR_ENTRY H_PUT_64 -#define GET_AOUTHDR_TEXT_START H_GET_64 -#define PUT_AOUTHDR_TEXT_START H_PUT_64 -#define GET_AOUTHDR_DATA_START H_GET_64 -#define PUT_AOUTHDR_DATA_START H_PUT_64 -#define GET_SCNHDR_PADDR H_GET_64 -#define PUT_SCNHDR_PADDR H_PUT_64 -#define GET_SCNHDR_VADDR H_GET_64 -#define PUT_SCNHDR_VADDR H_PUT_64 -#define GET_SCNHDR_SIZE H_GET_64 -#define PUT_SCNHDR_SIZE H_PUT_64 -#define GET_SCNHDR_SCNPTR H_GET_64 -#define PUT_SCNHDR_SCNPTR H_PUT_64 -#define GET_SCNHDR_RELPTR H_GET_64 -#define PUT_SCNHDR_RELPTR H_PUT_64 -#define GET_SCNHDR_LNNOPTR H_GET_64 -#define PUT_SCNHDR_LNNOPTR H_PUT_64 - -#define ALPHAECOFF - -#define NO_COFF_RELOCS -#define NO_COFF_SYMBOLS -#define NO_COFF_LINENOS -#define coff_swap_filehdr_in alpha_ecoff_swap_filehdr_in -#define coff_swap_filehdr_out alpha_ecoff_swap_filehdr_out -#define coff_swap_aouthdr_in alpha_ecoff_swap_aouthdr_in -#define coff_swap_aouthdr_out alpha_ecoff_swap_aouthdr_out -#define coff_swap_scnhdr_in alpha_ecoff_swap_scnhdr_in -#define coff_swap_scnhdr_out alpha_ecoff_swap_scnhdr_out -#include "coffswap.h" - -/* Get the ECOFF swapping routines. */ -#define ECOFF_64 -#include "ecoffswap.h" - -/* How to process the various reloc types. */ - -static bfd_reloc_status_type reloc_nil - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); - -static bfd_reloc_status_type -reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *reloc ATTRIBUTE_UNUSED; - asymbol *sym ATTRIBUTE_UNUSED; - PTR data ATTRIBUTE_UNUSED; - asection *sec ATTRIBUTE_UNUSED; - bfd *output_bfd ATTRIBUTE_UNUSED; - char **error_message ATTRIBUTE_UNUSED; -{ - return bfd_reloc_ok; -} - -/* 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[] = -{ - /* 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 */ - reloc_nil, /* special_function */ - "IGNORE", /* name */ - TRUE, /* 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 */ - reloc_nil, /* 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 */ - reloc_nil, /* 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 */ -}; - -/* Recognize an Alpha ECOFF file. */ - -static const bfd_target * -alpha_ecoff_object_p (abfd) - bfd *abfd; -{ - static const bfd_target *ret; - - ret = coff_object_p (abfd); - - if (ret != NULL) - { - asection *sec; - - /* Alpha ECOFF has a .pdata section. The lnnoptr field of the - .pdata section is the number of entries it contains. Each - entry takes up 8 bytes. The number of entries is required - since the section is aligned to a 16 byte boundary. When we - link .pdata sections together, we do not want to include the - alignment bytes. We handle this on input by faking the size - of the .pdata section to remove the unwanted alignment bytes. - On output we will set the lnnoptr field and force the - alignment. */ - sec = bfd_get_section_by_name (abfd, _PDATA); - if (sec != (asection *) NULL) - { - bfd_size_type size; - - size = sec->line_filepos * 8; - BFD_ASSERT (size == sec->size - || size + 8 == sec->size); - if (! bfd_set_section_size (abfd, sec, size)) - return NULL; - } - } - - return ret; -} - -/* See whether the magic number matches. */ - -static bfd_boolean -alpha_ecoff_bad_format_hook (abfd, filehdr) - bfd *abfd ATTRIBUTE_UNUSED; - PTR filehdr; -{ - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - - if (! ALPHA_ECOFF_BADMAG (*internal_f)) - return TRUE; - - if (ALPHA_ECOFF_COMPRESSEDMAG (*internal_f)) - (*_bfd_error_handler) - (_("%B: Cannot handle compressed Alpha binaries.\n" - " Use compiler flags, or objZ, to generate uncompressed binaries."), - abfd); - - return FALSE; -} - -/* This is a hook called by coff_real_object_p to create any backend - specific information. */ - -static PTR -alpha_ecoff_mkobject_hook (abfd, filehdr, aouthdr) - bfd *abfd; - PTR filehdr; - PTR aouthdr; -{ - PTR ecoff; - - ecoff = _bfd_ecoff_mkobject_hook (abfd, filehdr, aouthdr); - - if (ecoff != NULL) - { - struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; - - /* Set additional BFD flags according to the object type from the - machine specific file header flags. */ - switch (internal_f->f_flags & F_ALPHA_OBJECT_TYPE_MASK) - { - case F_ALPHA_SHARABLE: - abfd->flags |= DYNAMIC; - break; - case F_ALPHA_CALL_SHARED: - /* Always executable if using shared libraries as the run time - loader might resolve undefined references. */ - abfd->flags |= (DYNAMIC | EXEC_P); - break; - } - } - return ecoff; -} - -/* Reloc handling. */ - -/* Swap a reloc in. */ - -static void -alpha_ecoff_swap_reloc_in (abfd, ext_ptr, intern) - bfd *abfd; - PTR ext_ptr; - struct internal_reloc *intern; -{ - const RELOC *ext = (RELOC *) ext_ptr; - - intern->r_vaddr = H_GET_64 (abfd, ext->r_vaddr); - intern->r_symndx = H_GET_32 (abfd, ext->r_symndx); - - BFD_ASSERT (bfd_header_little_endian (abfd)); - - 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) - { - /* 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_ABS) - abort (); - if (! intern->r_extern && intern->r_symndx == RELOC_SECTION_LITA) - intern->r_symndx = RELOC_SECTION_ABS; - } -} - -/* Swap a reloc out. */ - -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_ABS) - { - symndx = RELOC_SECTION_LITA; - size = intern->r_size; - } - else - { - symndx = intern->r_symndx; - size = intern->r_size; - } - - /* XXX FIXME: The maximum symndx value used to be 14 but this - fails with object files produced by DEC's C++ compiler. - Where does the value 14 (or 15) come from anyway ? */ - BFD_ASSERT (intern->r_extern - || (intern->r_symndx >= 0 && intern->r_symndx <= 15)); - - H_PUT_64 (abfd, intern->r_vaddr, ext->r_vaddr); - H_PUT_32 (abfd, symndx, ext->r_symndx); - - BFD_ASSERT (bfd_header_little_endian (abfd)); - - 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); -} - -/* 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 void -alpha_adjust_reloc_in (abfd, intern, rptr) - bfd *abfd; - const struct internal_reloc *intern; - arelent *rptr; -{ - if (intern->r_type > ALPHA_R_GPVALUE) - { - (*_bfd_error_handler) - (_("%B: unknown/unsupported relocation type %d"), - abfd, intern->r_type); - bfd_set_error (bfd_error_bad_value); - rptr->addend = 0; - rptr->howto = NULL; - return; - } - - switch (intern->r_type) - { - case ALPHA_R_BRADDR: - case ALPHA_R_SREL16: - case ALPHA_R_SREL32: - case ALPHA_R_SREL64: - /* This relocs appear to be fully resolved when they are against - internal symbols. Against external symbols, BRADDR at least - appears to be resolved against the next instruction. */ - if (! intern->r_extern) - rptr->addend = 0; - else - rptr->addend = - (intern->r_vaddr + 4); - break; - - 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; - - 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); - 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_ptr->symbol_ptr_ptr; - rptr->address = intern->r_vaddr; - rptr->addend = ecoff_data (abfd)->gp; - break; - - default: - break; - } - - rptr->howto = &alpha_howto_table[intern->r_type]; -} - -/* 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_adjust_reloc_out (abfd, rel, intern) - bfd *abfd ATTRIBUTE_UNUSED; - const arelent *rel; - struct internal_reloc *intern; -{ - 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; - 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, relocatable, symbols) - bfd *abfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - bfd_byte *data; - bfd_boolean relocatable; - asymbol **symbols; -{ - bfd *input_bfd = link_order->u.indirect.section->owner; - asection *input_section = link_order->u.indirect.section; - long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); - arelent **reloc_vector = NULL; - long reloc_count; - bfd *output_bfd = relocatable ? abfd : (bfd *) NULL; - bfd_vma gp; - bfd_size_type sz; - bfd_boolean gp_undefined; - bfd_vma stack[RELOC_STACKSIZE]; - int tos = 0; - - if (reloc_size < 0) - goto error_return; - reloc_vector = (arelent **) bfd_malloc ((bfd_size_type) reloc_size); - if (reloc_vector == NULL && reloc_size != 0) - goto error_return; - - sz = input_section->rawsize ? input_section->rawsize : input_section->size; - if (! bfd_get_section_contents (input_bfd, input_section, data, 0, sz)) - goto error_return; - - reloc_count = bfd_canonicalize_reloc (input_bfd, input_section, - reloc_vector, symbols); - if (reloc_count < 0) - goto error_return; - if (reloc_count == 0) - goto successful_return; - - /* Get the GP value for the output BFD. */ - gp_undefined = FALSE; - gp = _bfd_get_gp_value (abfd); - if (gp == 0) - { - if (relocatable) - { - 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; - } - gp = lo + 0x8000; - _bfd_set_gp_value (abfd, gp); - } - 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 - { - gp = (h->u.def.value - + h->u.def.section->output_section->vma - + h->u.def.section->output_offset); - _bfd_set_gp_value (abfd, gp); - } - } - } - - for (; *reloc_vector != (arelent *) NULL; reloc_vector++) - { - 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 (relocatable - && ((*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 or ldl instruction, so check my assumption. */ - insn = bfd_get_32 (input_bfd, data + rel->address); - BFD_ASSERT (((insn >> 26) & 0x3f) == 0x29 - || ((insn >> 26) & 0x3f) == 0x28); - - 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; it used to be marked with an ALPHA_R_IGNORE reloc, - but that no longer happens in OSF/1 3.2. */ - { - unsigned long insn1, insn2; - bfd_vma addend; - - /* 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 -= (ecoff_data (input_bfd)->gp - - (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 (relocatable) - { - rel->address += input_section->output_offset; - break; - } - - /* Figure out the relocation of this symbol. */ - symbol = *rel->sym_ptr_ptr; - - if (bfd_is_und_section (symbol->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 (relocatable) - { - 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 (relocatable) - { - rel->address += input_section->output_offset; - break; - } - - /* Figure out the relocation of this symbol. */ - symbol = *rel->sym_ptr_ptr; - - if (bfd_is_und_section (symbol->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 (relocatable) - { - rel->address += input_section->output_offset; - break; - } - - /* Figure out the relocation of this symbol. */ - symbol = *rel->sym_ptr_ptr; - - if (bfd_is_und_section (symbol->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 (relocatable) - { - 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, TRUE))) - goto error_return; - break; - case bfd_reloc_dangerous: - if (! ((*link_info->callbacks->reloc_dangerous) - (link_info, err, input_bfd, input_section, - rel->address))) - goto error_return; - break; - case bfd_reloc_overflow: - if (! ((*link_info->callbacks->reloc_overflow) - (link_info, NULL, - bfd_asymbol_name (*rel->sym_ptr_ptr), - rel->howto->name, rel->addend, input_bfd, - input_section, rel->address))) - goto error_return; - break; - case bfd_reloc_outofrange: - default: - abort (); - break; - } - } - } - - if (tos != 0) - abort (); - - successful_return: - if (reloc_vector != NULL) - free (reloc_vector); - return data; - - error_return: - if (reloc_vector != NULL) - free (reloc_vector); - return NULL; -} - -/* Get the howto structure for a generic reloc type. */ - -static reloc_howto_type * -alpha_bfd_reloc_type_lookup (abfd, code) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - int alpha_type; - - switch (code) - { - case BFD_RELOC_32: - alpha_type = ALPHA_R_REFLONG; - break; - case BFD_RELOC_64: - case BFD_RELOC_CTOR: - 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; - default: - return (reloc_howto_type *) NULL; - } - - return &alpha_howto_table[alpha_type]; -} - -/* A helper routine for alpha_relocate_section which converts an - external reloc when generating relocatable output. Returns the - relocation amount. */ - -static bfd_vma -alpha_convert_external_reloc (output_bfd, info, input_bfd, ext_rel, h) - bfd *output_bfd ATTRIBUTE_UNUSED; - 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->relocatable); - - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - { - 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 = (unsigned long) -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; - else if (strcmp (name, ".rconst") == 0) - r_symndx = RELOC_SECTION_RCONST; - 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 == (unsigned long) -1) - abort (); - - /* Add the section VMA and the symbol value. */ - relocation = (h->root.u.def.value - + hsec->output_section->vma - + hsec->output_offset); - } - else - { - /* Change the symndx value to the right one for - the output BFD. */ - r_symndx = h->indx; - if (r_symndx == (unsigned long) -1) - { - /* Caller must give an error. */ - r_symndx = 0; - } - relocation = 0; - } - - /* Write out the new r_symndx value. */ - H_PUT_32 (input_bfd, r_symndx, 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 bfd_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, *lita_sec; - struct ecoff_link_hash_entry **sym_hashes; - bfd_vma gp; - bfd_boolean gp_undefined; - bfd_vma stack[RELOC_STACKSIZE]; - int tos = 0; - struct external_reloc *ext_rel; - struct external_reloc *ext_rel_end; - bfd_size_type amt; - - /* 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) - { - amt = NUM_RELOC_SECTIONS * sizeof (asection *); - symndx_to_section = (asection **) bfd_alloc (input_bfd, amt); - if (!symndx_to_section) - return FALSE; - - 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_ptr; - symndx_to_section[RELOC_SECTION_RCONST] = - bfd_get_section_by_name (input_bfd, ".rconst"); - - ecoff_data (input_bfd)->symndx_to_section = symndx_to_section; - } - - sym_hashes = ecoff_data (input_bfd)->sym_hashes; - - /* On the Alpha, the .lita section must be addressable by the global - pointer. To support large programs, we need to allow multiple - global pointers. This works as long as each input .lita section - is <64KB big. This implies that when producing relocatable - output, the .lita section is limited to 64KB. . */ - - lita_sec = symndx_to_section[RELOC_SECTION_LITA]; - gp = _bfd_get_gp_value (output_bfd); - if (! info->relocatable && lita_sec != NULL) - { - struct ecoff_section_tdata *lita_sec_data; - - /* Make sure we have a section data structure to which we can - hang on to the gp value we pick for the section. */ - lita_sec_data = ecoff_section_data (input_bfd, lita_sec); - if (lita_sec_data == NULL) - { - amt = sizeof (struct ecoff_section_tdata); - lita_sec_data = ((struct ecoff_section_tdata *) - bfd_zalloc (input_bfd, amt)); - lita_sec->used_by_bfd = lita_sec_data; - } - - if (lita_sec_data->gp != 0) - { - /* If we already assigned a gp to this section, we better - stick with that value. */ - gp = lita_sec_data->gp; - } - else - { - bfd_vma lita_vma; - bfd_size_type lita_size; - - lita_vma = lita_sec->output_offset + lita_sec->output_section->vma; - lita_size = lita_sec->size; - - if (gp == 0 - || lita_vma < gp - 0x8000 - || lita_vma + lita_size >= gp + 0x8000) - { - /* Either gp hasn't been set at all or the current gp - cannot address this .lita section. In both cases we - reset the gp to point into the "middle" of the - current input .lita section. */ - if (gp && !ecoff_data (output_bfd)->issued_multiple_gp_warning) - { - (*info->callbacks->warning) (info, - _("using multiple gp values"), - (char *) NULL, output_bfd, - (asection *) NULL, (bfd_vma) 0); - ecoff_data (output_bfd)->issued_multiple_gp_warning = TRUE; - } - if (lita_vma < gp - 0x8000) - gp = lita_vma + lita_size - 0x8000; - else - gp = lita_vma + 0x8000; - - } - - lita_sec_data->gp = gp; - } - - _bfd_set_gp_value (output_bfd, gp); - } - - gp_undefined = (gp == 0); - - BFD_ASSERT (bfd_header_little_endian (output_bfd)); - BFD_ASSERT (bfd_header_little_endian (input_bfd)); - - 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; - bfd_boolean relocatep; - bfd_boolean adjust_addrp; - bfd_boolean gp_usedp; - bfd_vma addend; - - r_vaddr = H_GET_64 (input_bfd, ext_rel->r_vaddr); - r_symndx = H_GET_32 (input_bfd, 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) - { - case ALPHA_R_GPRELHIGH: - (*_bfd_error_handler) - (_("%B: unsupported relocation: ALPHA_R_GPRELHIGH"), - input_bfd); - bfd_set_error (bfd_error_bad_value); - continue; - - case ALPHA_R_GPRELLOW: - (*_bfd_error_handler) - (_("%B: unsupported relocation: ALPHA_R_GPRELLOW"), - input_bfd); - bfd_set_error (bfd_error_bad_value); - continue; - - default: - (*_bfd_error_handler) - (_("%B: unknown relocation type %d"), - input_bfd, (int) r_type); - bfd_set_error (bfd_error_bad_value); - continue; - - case ALPHA_R_IGNORE: - /* This reloc appears after a GPDISP reloc. On earlier - versions of OSF/1, It marked the position of the second - instruction to be altered by the GPDISP reloc, but it 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->relocatable) - H_PUT_64 (input_bfd, input_section->output_offset + r_vaddr, - ext_rel->r_vaddr); - adjust_addrp = FALSE; - break; - - case ALPHA_R_REFLONG: - case ALPHA_R_REFQUAD: - case ALPHA_R_HINT: - relocatep = TRUE; - break; - - case ALPHA_R_BRADDR: - case ALPHA_R_SREL16: - case ALPHA_R_SREL32: - case ALPHA_R_SREL64: - if (r_extern) - addend += - (r_vaddr + 4); - 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 - or ldl instruction, so check my assumption. */ - { - unsigned long insn; - - insn = bfd_get_32 (input_bfd, - contents + r_vaddr - input_section->vma); - BFD_ASSERT (((insn >> 26) & 0x3f) == 0x29 - || ((insn >> 26) & 0x3f) == 0x28); - } - - 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. It used to be marked with an ALPHA_R_IGNORE - reloc, but OSF/1 3.2 no longer does that. */ - { - unsigned long insn1, insn2; - - /* 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->relocatable) - { - if (h->root.type == bfd_link_hash_defined - || h->root.type == bfd_link_hash_defweak) - 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, TRUE))) - return FALSE; - addend = 0; - } - } - else - { - if (h->root.type != bfd_link_hash_defined - && h->root.type != bfd_link_hash_defweak - && 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->relocatable) - { - /* Adjust r_vaddr by the addend. */ - H_PUT_64 (input_bfd, addend, 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 relocatable output, all we do is - adjust the address of the reloc. */ - if (! info->relocatable) - { - bfd_vma mask; - bfd_vma val; - - if (tos == 0) - abort (); - - /* Get the relocation mask. The separate steps and the - casts to bfd_vma are attempts to avoid a bug in the - Alpha OSF 1.3 C compiler. See reloc.c for more - details. */ - mask = 1; - mask <<= (bfd_vma) r_size; - mask -= 1; - - /* 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 &=~ mask << (bfd_vma) r_offset; - val |= (stack[--tos] & mask) << (bfd_vma) 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 >= NUM_RELOC_SECTIONS) - s = NULL; - else - s = symndx_to_section[r_symndx]; - - if (s == (asection *) NULL) - abort (); - } - - if (info->relocatable) - { - /* We are generating relocatable output, and must - convert the existing reloc. */ - if (r_extern) - { - if (h->root.type != bfd_link_hash_defined - && h->root.type != bfd_link_hash_defweak - && 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 - || h->root.type == bfd_link_hash_defweak) - { - 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, TRUE))) - 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: - { - const char *name; - - if (r_extern) - name = sym_hashes[r_symndx]->root.root.string; - else - name = bfd_section_name (input_bfd, - symndx_to_section[r_symndx]); - if (! ((*info->callbacks->reloc_overflow) - (info, NULL, name, - alpha_howto_table[r_type].name, - (bfd_vma) 0, input_bfd, input_section, - r_vaddr - input_section->vma))) - return FALSE; - } - break; - } - } - } - - if (info->relocatable && adjust_addrp) - { - /* Change the address of the relocation. */ - H_PUT_64 (input_bfd, - (input_section->output_section->vma - + input_section->output_offset - - input_section->vma - + r_vaddr), - ext_rel->r_vaddr); - } - - if (gp_usedp && gp_undefined) - { - if (! ((*info->callbacks->reloc_dangerous) - (info, _("GP relative relocation used when GP not defined"), - input_bfd, input_section, r_vaddr - input_section->vma))) - return FALSE; - /* Only give the error once per link. */ - gp = 4; - _bfd_set_gp_value (output_bfd, gp); - gp_undefined = FALSE; - } - } - - if (tos != 0) - abort (); - - return TRUE; -} - -/* Do final adjustments to the filehdr and the aouthdr. This routine - sets the dynamic bits in the file header. */ - -static bfd_boolean -alpha_adjust_headers (abfd, fhdr, ahdr) - bfd *abfd; - struct internal_filehdr *fhdr; - struct internal_aouthdr *ahdr ATTRIBUTE_UNUSED; -{ - if ((abfd->flags & (DYNAMIC | EXEC_P)) == (DYNAMIC | EXEC_P)) - fhdr->f_flags |= F_ALPHA_CALL_SHARED; - else if ((abfd->flags & DYNAMIC) != 0) - fhdr->f_flags |= F_ALPHA_SHARABLE; - return TRUE; -} - -/* Archive handling. In OSF/1 (or Digital Unix) v3.2, Digital - introduced archive packing, in which the elements in an archive are - optionally compressed using a simple dictionary scheme. We know - how to read such archives, but we don't write them. */ - -#define alpha_ecoff_slurp_armap _bfd_ecoff_slurp_armap -#define alpha_ecoff_slurp_extended_name_table \ - _bfd_ecoff_slurp_extended_name_table -#define alpha_ecoff_construct_extended_name_table \ - _bfd_ecoff_construct_extended_name_table -#define alpha_ecoff_truncate_arname _bfd_ecoff_truncate_arname -#define alpha_ecoff_write_armap _bfd_ecoff_write_armap -#define alpha_ecoff_generic_stat_arch_elt _bfd_ecoff_generic_stat_arch_elt -#define alpha_ecoff_update_armap_timestamp _bfd_ecoff_update_armap_timestamp - -/* A compressed file uses this instead of ARFMAG. */ - -#define ARFZMAG "Z\012" - -/* Read an archive header. This is like the standard routine, but it - also accepts ARFZMAG. */ - -static PTR -alpha_ecoff_read_ar_hdr (abfd) - bfd *abfd; -{ - struct areltdata *ret; - struct ar_hdr *h; - - ret = (struct areltdata *) _bfd_generic_read_ar_hdr_mag (abfd, ARFZMAG); - if (ret == NULL) - return NULL; - - h = (struct ar_hdr *) ret->arch_header; - if (strncmp (h->ar_fmag, ARFZMAG, 2) == 0) - { - bfd_byte ab[8]; - - /* This is a compressed file. We must set the size correctly. - The size is the eight bytes after the dummy file header. */ - if (bfd_seek (abfd, (file_ptr) FILHSZ, SEEK_CUR) != 0 - || bfd_bread (ab, (bfd_size_type) 8, abfd) != 8 - || bfd_seek (abfd, (file_ptr) (- (FILHSZ + 8)), SEEK_CUR) != 0) - return NULL; - - ret->parsed_size = H_GET_64 (abfd, ab); - } - - return (PTR) ret; -} - -/* Get an archive element at a specified file position. This is where - we uncompress the archive element if necessary. */ - -static bfd * -alpha_ecoff_get_elt_at_filepos (archive, filepos) - bfd *archive; - file_ptr filepos; -{ - bfd *nbfd = NULL; - struct areltdata *tdata; - struct ar_hdr *hdr; - bfd_byte ab[8]; - bfd_size_type size; - bfd_byte *buf, *p; - struct bfd_in_memory *bim; - - nbfd = _bfd_get_elt_at_filepos (archive, filepos); - if (nbfd == NULL) - goto error_return; - - if ((nbfd->flags & BFD_IN_MEMORY) != 0) - { - /* We have already expanded this BFD. */ - return nbfd; - } - - tdata = (struct areltdata *) nbfd->arelt_data; - hdr = (struct ar_hdr *) tdata->arch_header; - if (strncmp (hdr->ar_fmag, ARFZMAG, 2) != 0) - return nbfd; - - /* We must uncompress this element. We do this by copying it into a - memory buffer, and making bfd_bread and bfd_seek use that buffer. - This can use a lot of memory, but it's simpler than getting a - temporary file, making that work with the file descriptor caching - code, and making sure that it is deleted at all appropriate - times. It can be changed if it ever becomes important. */ - - /* The compressed file starts with a dummy ECOFF file header. */ - if (bfd_seek (nbfd, (file_ptr) FILHSZ, SEEK_SET) != 0) - goto error_return; - - /* The next eight bytes are the real file size. */ - if (bfd_bread (ab, (bfd_size_type) 8, nbfd) != 8) - goto error_return; - size = H_GET_64 (nbfd, ab); - - if (size == 0) - buf = NULL; - else - { - bfd_size_type left; - bfd_byte dict[4096]; - unsigned int h; - bfd_byte b; - - buf = (bfd_byte *) bfd_alloc (nbfd, size); - if (buf == NULL) - goto error_return; - p = buf; - - left = size; - - /* I don't know what the next eight bytes are for. */ - if (bfd_bread (ab, (bfd_size_type) 8, nbfd) != 8) - goto error_return; - - /* This is the uncompression algorithm. It's a simple - dictionary based scheme in which each character is predicted - by a hash of the previous three characters. A control byte - indicates whether the character is predicted or whether it - appears in the input stream; each control byte manages the - next eight bytes in the output stream. */ - memset (dict, 0, sizeof dict); - h = 0; - while (bfd_bread (&b, (bfd_size_type) 1, nbfd) == 1) - { - unsigned int i; - - for (i = 0; i < 8; i++, b >>= 1) - { - bfd_byte n; - - if ((b & 1) == 0) - n = dict[h]; - else - { - if (! bfd_bread (&n, (bfd_size_type) 1, nbfd)) - goto error_return; - dict[h] = n; - } - - *p++ = n; - - --left; - if (left == 0) - break; - - h <<= 4; - h ^= n; - h &= sizeof dict - 1; - } - - if (left == 0) - break; - } - } - - /* Now the uncompressed file contents are in buf. */ - bim = ((struct bfd_in_memory *) - bfd_alloc (nbfd, (bfd_size_type) sizeof (struct bfd_in_memory))); - if (bim == NULL) - goto error_return; - bim->size = size; - bim->buffer = buf; - - nbfd->mtime_set = TRUE; - nbfd->mtime = strtol (hdr->ar_date, (char **) NULL, 10); - - nbfd->flags |= BFD_IN_MEMORY; - nbfd->iostream = (PTR) bim; - BFD_ASSERT (! nbfd->cacheable); - - return nbfd; - - error_return: - if (nbfd != NULL) - bfd_close (nbfd); - return NULL; -} - -/* Open the next archived file. */ - -static bfd * -alpha_ecoff_openr_next_archived_file (archive, last_file) - bfd *archive; - bfd *last_file; -{ - file_ptr filestart; - - if (last_file == NULL) - filestart = bfd_ardata (archive)->first_file_filepos; - else - { - struct areltdata *t; - struct ar_hdr *h; - bfd_size_type size; - - /* We can't use arelt_size here, because that uses parsed_size, - which is the uncompressed size. We need the compressed size. */ - t = (struct areltdata *) last_file->arelt_data; - h = (struct ar_hdr *) t->arch_header; - size = strtol (h->ar_size, (char **) NULL, 10); - - /* Pad to an even boundary... - Note that last_file->origin can be odd in the case of - BSD-4.4-style element with a long odd size. */ - filestart = last_file->origin + size; - filestart += filestart % 2; - } - - return alpha_ecoff_get_elt_at_filepos (archive, filestart); -} - -/* Open the archive file given an index into the armap. */ - -static bfd * -alpha_ecoff_get_elt_at_index (abfd, index) - bfd *abfd; - symindex index; -{ - carsym *entry; - - entry = bfd_ardata (abfd)->symdefs + index; - return alpha_ecoff_get_elt_at_filepos (abfd, entry->file_offset); -} - -/* 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,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,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, 0, FILNMLEN, TRUE, FALSE, 4, FALSE, 2, - alpha_ecoff_swap_filehdr_in, alpha_ecoff_swap_aouthdr_in, - alpha_ecoff_swap_scnhdr_in, NULL, - alpha_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook, - alpha_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags, - _bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, 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, - _bfd_ecoff_swap_tir_in, - _bfd_ecoff_swap_rndx_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, - _bfd_ecoff_swap_tir_out, - _bfd_ecoff_swap_rndx_out, - /* Function to read in symbolic data. */ - _bfd_ecoff_slurp_symbolic_info - }, - /* 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, - /* Do final adjustments to filehdr and aouthdr. */ - alpha_adjust_headers, - /* Read an element from an archive at a given file position. */ - alpha_ecoff_get_elt_at_filepos -}; - -/* Looking up a reloc type is Alpha specific. */ -#define _bfd_ecoff_bfd_reloc_type_lookup alpha_bfd_reloc_type_lookup - -/* So is getting relocated section contents. */ -#define _bfd_ecoff_bfd_get_relocated_section_contents \ - alpha_ecoff_get_relocated_section_contents - -/* Handling file windows is generic. */ -#define _bfd_ecoff_get_section_contents_in_window \ - _bfd_generic_get_section_contents_in_window - -/* Relaxing sections is generic. */ -#define _bfd_ecoff_bfd_relax_section bfd_generic_relax_section -#define _bfd_ecoff_bfd_gc_sections bfd_generic_gc_sections -#define _bfd_ecoff_bfd_merge_sections bfd_generic_merge_sections -#define _bfd_ecoff_bfd_is_group_section bfd_generic_is_group_section -#define _bfd_ecoff_bfd_discard_group bfd_generic_discard_group -#define _bfd_ecoff_section_already_linked \ - _bfd_generic_section_already_linked - -const bfd_target ecoffalpha_little_vec = -{ - "ecoff-littlealpha", /* name */ - bfd_target_ecoff_flavour, - BFD_ENDIAN_LITTLE, /* data byte order is little */ - BFD_ENDIAN_LITTLE, /* header byte order is little */ - - (HAS_RELOC | EXEC_P | /* object flags */ - HAS_LINENO | HAS_DEBUG | - HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), - - (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), - 0, /* leading underscore */ - ' ', /* ar_pad_char */ - 15, /* ar_max_namelen */ - 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, alpha_ecoff_object_p, /* bfd_check_format */ - _bfd_ecoff_archive_p, _bfd_dummy_target}, - {bfd_false, _bfd_ecoff_mkobject, /* bfd_set_format */ - _bfd_generic_mkarchive, bfd_false}, - {bfd_false, _bfd_ecoff_write_object_contents, /* bfd_write_contents */ - _bfd_write_archive_contents, bfd_false}, - - BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), - BFD_JUMP_TABLE_COPY (_bfd_ecoff), - BFD_JUMP_TABLE_CORE (_bfd_nocore), - BFD_JUMP_TABLE_ARCHIVE (alpha_ecoff), - BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), - BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), - BFD_JUMP_TABLE_WRITE (_bfd_ecoff), - BFD_JUMP_TABLE_LINK (_bfd_ecoff), - BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), - - NULL, - - (PTR) &alpha_ecoff_backend_data -}; |