771 lines
25 KiB
C
771 lines
25 KiB
C
/* Generic target-file-type support for the BFD library.
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Copyright 1990, 91, 92, 93, 1994 Free Software Foundation, Inc.
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Written by Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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/*
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SECTION
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Targets
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DESCRIPTION
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Each port of BFD to a different machine requries the creation
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of a target back end. All the back end provides to the root
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part of BFD is a structure containing pointers to functions
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which perform certain low level operations on files. BFD
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translates the applications's requests through a pointer into
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calls to the back end routines.
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When a file is opened with <<bfd_openr>>, its format and
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target are unknown. BFD uses various mechanisms to determine
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how to interpret the file. The operations performed are:
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o Create a BFD by calling the internal routine
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<<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
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target string supplied to <<bfd_openr>> and the new BFD pointer.
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o If a null target string was provided to <<bfd_find_target>>,
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look up the environment variable <<GNUTARGET>> and use
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that as the target string.
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o If the target string is still <<NULL>>, or the target string is
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<<default>>, then use the first item in the target vector
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as the target type, and set <<target_defaulted>> in the BFD to
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cause <<bfd_check_format>> to loop through all the targets.
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@xref{bfd_target}. @xref{Formats}.
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o Otherwise, inspect the elements in the target vector
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one by one, until a match on target name is found. When found,
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use it.
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o Otherwise return the error <<bfd_error_invalid_target>> to
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<<bfd_openr>>.
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o <<bfd_openr>> attempts to open the file using
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<<bfd_open_file>>, and returns the BFD.
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Once the BFD has been opened and the target selected, the file
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format may be determined. This is done by calling
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<<bfd_check_format>> on the BFD with a suggested format.
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If <<target_defaulted>> has been set, each possible target
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type is tried to see if it recognizes the specified format.
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<<bfd_check_format>> returns <<true>> when the caller guesses right.
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@menu
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@* bfd_target::
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@end menu
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*/
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/*
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INODE
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bfd_target, , Targets, Targets
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DOCDD
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SUBSECTION
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bfd_target
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DESCRIPTION
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This structure contains everything that BFD knows about a
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target. It includes things like its byte order, name, and which
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routines to call to do various operations.
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Every BFD points to a target structure with its <<xvec>>
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member.
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The macros below are used to dispatch to functions through the
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<<bfd_target>> vector. They are used in a number of macros further
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down in @file{bfd.h}, and are also used when calling various
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routines by hand inside the BFD implementation. The @var{arglist}
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argument must be parenthesized; it contains all the arguments
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to the called function.
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They make the documentation (more) unpleasant to read, so if
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someone wants to fix this and not break the above, please do.
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.#define BFD_SEND(bfd, message, arglist) \
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. ((*((bfd)->xvec->message)) arglist)
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.
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.#ifdef DEBUG_BFD_SEND
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.#undef BFD_SEND
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.#define BFD_SEND(bfd, message, arglist) \
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. (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
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. ((*((bfd)->xvec->message)) arglist) : \
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. (bfd_assert (__FILE__,__LINE__), NULL))
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.#endif
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For operations which index on the BFD format:
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.#define BFD_SEND_FMT(bfd, message, arglist) \
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. (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
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.
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.#ifdef DEBUG_BFD_SEND
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.#undef BFD_SEND_FMT
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.#define BFD_SEND_FMT(bfd, message, arglist) \
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. (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
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. (((bfd)->xvec->message[(int)((bfd)->format)]) arglist) : \
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. (bfd_assert (__FILE__,__LINE__), NULL))
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.#endif
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This is the structure which defines the type of BFD this is. The
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<<xvec>> member of the struct <<bfd>> itself points here. Each
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module that implements access to a different target under BFD,
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defines one of these.
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FIXME, these names should be rationalised with the names of
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the entry points which call them. Too bad we can't have one
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macro to define them both!
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.enum bfd_flavour {
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. bfd_target_unknown_flavour,
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. bfd_target_aout_flavour,
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. bfd_target_coff_flavour,
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. bfd_target_ecoff_flavour,
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. bfd_target_elf_flavour,
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. bfd_target_ieee_flavour,
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. bfd_target_nlm_flavour,
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. bfd_target_oasys_flavour,
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. bfd_target_tekhex_flavour,
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. bfd_target_srec_flavour,
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. bfd_target_som_flavour,
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. bfd_target_os9k_flavour};
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.
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.{* Forward declaration. *}
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.typedef struct bfd_link_info _bfd_link_info;
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.
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.typedef struct bfd_target
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.{
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Identifies the kind of target, e.g., SunOS4, Ultrix, etc.
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. char *name;
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The "flavour" of a back end is a general indication about the contents
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of a file.
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. enum bfd_flavour flavour;
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The order of bytes within the data area of a file.
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. boolean byteorder_big_p;
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The order of bytes within the header parts of a file.
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. boolean header_byteorder_big_p;
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A mask of all the flags which an executable may have set -
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from the set <<NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.
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. flagword object_flags;
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A mask of all the flags which a section may have set - from
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the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.
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. flagword section_flags;
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The character normally found at the front of a symbol
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(if any), perhaps `_'.
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. char symbol_leading_char;
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The pad character for file names within an archive header.
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. char ar_pad_char;
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The maximum number of characters in an archive header.
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. unsigned short ar_max_namelen;
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The minimum alignment restriction for any section.
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. unsigned int align_power_min;
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Entries for byte swapping for data. These are different from the other
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entry points, since they don't take a BFD asthe first argument.
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Certain other handlers could do the same.
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. bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *));
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. bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
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. void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
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. bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *));
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. bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
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. void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
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. bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *));
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. bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
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. void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
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Byte swapping for the headers
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. bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *));
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. bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
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. void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
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. bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *));
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. bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
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. void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
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. bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *));
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. bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
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. void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
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Format dependent routines: these are vectors of entry points
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within the target vector structure, one for each format to check.
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Check the format of a file being read. Return a <<bfd_target *>> or zero.
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. const struct bfd_target *(*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
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Set the format of a file being written.
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. boolean (*_bfd_set_format[bfd_type_end]) PARAMS ((bfd *));
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Write cached information into a file being written, at <<bfd_close>>.
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. boolean (*_bfd_write_contents[bfd_type_end]) PARAMS ((bfd *));
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The general target vector.
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.
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. {* Generic entry points. *}
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.#define BFD_JUMP_TABLE_GENERIC(NAME)\
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.CAT(NAME,_close_and_cleanup),\
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.CAT(NAME,_bfd_free_cached_info),\
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.CAT(NAME,_new_section_hook),\
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.CAT(NAME,_get_section_contents)
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. {* Called when the BFD is being closed to do any necessary cleanup. *}
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. boolean (*_close_and_cleanup) PARAMS ((bfd *));
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. {* Ask the BFD to free all cached information. *}
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. boolean (*_bfd_free_cached_info) PARAMS ((bfd *));
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. {* Called when a new section is created. *}
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. boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
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. {* Read the contents of a section. *}
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. boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
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. file_ptr, bfd_size_type));
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.
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. {* Entry points to copy private data. *}
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.#define BFD_JUMP_TABLE_COPY(NAME)\
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.CAT(NAME,_bfd_copy_private_bfd_data),\
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.CAT(NAME,_bfd_copy_private_section_data)
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. {* Called to copy BFD general private data from one object file
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. to another. *}
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. boolean (*_bfd_copy_private_bfd_data) PARAMS ((bfd *, bfd *));
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. {* Called to copy BFD private section data from one object file
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. to another. *}
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. boolean (*_bfd_copy_private_section_data) PARAMS ((bfd *, sec_ptr,
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. bfd *, sec_ptr));
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.
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. {* Core file entry points. *}
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.#define BFD_JUMP_TABLE_CORE(NAME)\
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.CAT(NAME,_core_file_failing_command),\
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.CAT(NAME,_core_file_failing_signal),\
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.CAT(NAME,_core_file_matches_executable_p)
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. char * (*_core_file_failing_command) PARAMS ((bfd *));
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. int (*_core_file_failing_signal) PARAMS ((bfd *));
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. boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
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.
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. {* Archive entry points. *}
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.#define BFD_JUMP_TABLE_ARCHIVE(NAME)\
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.CAT(NAME,_slurp_armap),\
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.CAT(NAME,_slurp_extended_name_table),\
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.CAT(NAME,_truncate_arname),\
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.CAT(NAME,_write_armap),\
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.CAT(NAME,_openr_next_archived_file),\
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.CAT(NAME,_generic_stat_arch_elt)
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. boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
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. boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
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. void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
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. boolean (*write_armap) PARAMS ((bfd *arch,
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. unsigned int elength,
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. struct orl *map,
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. unsigned int orl_count,
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. int stridx));
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. bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
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. int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
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.
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. {* Entry points used for symbols. *}
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.#define BFD_JUMP_TABLE_SYMBOLS(NAME)\
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.CAT(NAME,_get_symtab_upper_bound),\
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.CAT(NAME,_get_symtab),\
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.CAT(NAME,_make_empty_symbol),\
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.CAT(NAME,_print_symbol),\
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.CAT(NAME,_get_symbol_info),\
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.CAT(NAME,_bfd_is_local_label),\
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.CAT(NAME,_get_lineno),\
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.CAT(NAME,_find_nearest_line),\
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.CAT(NAME,_bfd_make_debug_symbol)
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. long (*_bfd_get_symtab_upper_bound) PARAMS ((bfd *));
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. long (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
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. struct symbol_cache_entry **));
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. struct symbol_cache_entry *
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. (*_bfd_make_empty_symbol) PARAMS ((bfd *));
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. void (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
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. struct symbol_cache_entry *,
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. bfd_print_symbol_type));
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.#define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
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. void (*_bfd_get_symbol_info) PARAMS ((bfd *,
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. struct symbol_cache_entry *,
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. symbol_info *));
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.#define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
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. boolean (*_bfd_is_local_label) PARAMS ((bfd *, asymbol *));
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.
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. alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
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. boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
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. struct sec *section, struct symbol_cache_entry **symbols,
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. bfd_vma offset, CONST char **file, CONST char **func,
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. unsigned int *line));
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. {* Back-door to allow format-aware applications to create debug symbols
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. while using BFD for everything else. Currently used by the assembler
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. when creating COFF files. *}
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. asymbol * (*_bfd_make_debug_symbol) PARAMS ((
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. bfd *abfd,
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. void *ptr,
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. unsigned long size));
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.
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. {* Routines for relocs. *}
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.#define BFD_JUMP_TABLE_RELOCS(NAME)\
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.CAT(NAME,_get_reloc_upper_bound),\
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.CAT(NAME,_canonicalize_reloc),\
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.CAT(NAME,_bfd_reloc_type_lookup)
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. long (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
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. long (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
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. struct symbol_cache_entry **));
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. {* See documentation on reloc types. *}
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. CONST struct reloc_howto_struct *
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. (*reloc_type_lookup) PARAMS ((bfd *abfd,
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. bfd_reloc_code_real_type code));
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.
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. {* Routines used when writing an object file. *}
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.#define BFD_JUMP_TABLE_WRITE(NAME)\
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.CAT(NAME,_set_arch_mach),\
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.CAT(NAME,_set_section_contents)
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. boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
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. unsigned long));
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. boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
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. file_ptr, bfd_size_type));
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.
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. {* Routines used by the linker. *}
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.#define BFD_JUMP_TABLE_LINK(NAME)\
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.CAT(NAME,_sizeof_headers),\
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.CAT(NAME,_bfd_get_relocated_section_contents),\
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.CAT(NAME,_bfd_relax_section),\
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.CAT(NAME,_bfd_link_hash_table_create),\
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.CAT(NAME,_bfd_link_add_symbols),\
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.CAT(NAME,_bfd_final_link)
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. int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
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. bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
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. struct bfd_link_info *, struct bfd_link_order *,
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. bfd_byte *data, boolean relocateable,
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. struct symbol_cache_entry **));
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.
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. boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
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. struct bfd_link_info *, boolean *again));
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.
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. {* Create a hash table for the linker. Different backends store
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. different information in this table. *}
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. struct bfd_link_hash_table *(*_bfd_link_hash_table_create) PARAMS ((bfd *));
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.
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. {* Add symbols from this object file into the hash table. *}
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. boolean (*_bfd_link_add_symbols) PARAMS ((bfd *, struct bfd_link_info *));
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.
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. {* Do a link based on the link_order structures attached to each
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. section of the BFD. *}
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. boolean (*_bfd_final_link) PARAMS ((bfd *, struct bfd_link_info *));
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.
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. {* Routines to handle dynamic symbols and relocs. *}
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.#define BFD_JUMP_TABLE_DYNAMIC(NAME)\
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.CAT(NAME,_get_dynamic_symtab_upper_bound),\
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.CAT(NAME,_canonicalize_dynamic_symtab),\
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.CAT(NAME,_get_dynamic_reloc_upper_bound),\
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.CAT(NAME,_canonicalize_dynamic_reloc)
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. {* Get the amount of memory required to hold the dynamic symbols. *}
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. long (*_bfd_get_dynamic_symtab_upper_bound) PARAMS ((bfd *));
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. {* Read in the dynamic symbols. *}
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. long (*_bfd_canonicalize_dynamic_symtab)
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. PARAMS ((bfd *, struct symbol_cache_entry **));
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. {* Get the amount of memory required to hold the dynamic relocs. *}
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. long (*_bfd_get_dynamic_reloc_upper_bound) PARAMS ((bfd *));
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. {* Read in the dynamic relocs. *}
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. long (*_bfd_canonicalize_dynamic_reloc)
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. PARAMS ((bfd *, arelent **, struct symbol_cache_entry **));
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.
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Data for use by back-end routines, which isn't generic enough to belong
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in this structure.
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. PTR backend_data;
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.} bfd_target;
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*/
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/* All known xvecs (even those that don't compile on all systems).
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Alphabetized for easy reference.
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They are listed a second time below, since
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we can't intermix extern's and initializers. */
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extern const bfd_target a29kcoff_big_vec;
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extern const bfd_target a_out_adobe_vec;
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extern const bfd_target aout_mips_big_vec;
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extern const bfd_target aout_mips_little_vec;
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extern const bfd_target aout0_big_vec;
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extern const bfd_target apollocoff_vec;
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extern const bfd_target b_out_vec_big_host;
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extern const bfd_target b_out_vec_little_host;
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extern const bfd_target bfd_elf32_big_generic_vec;
|
|
extern const bfd_target bfd_elf32_bigmips_vec;
|
|
extern const bfd_target bfd_elf32_hppa_vec;
|
|
extern const bfd_target bfd_elf32_i386_vec;
|
|
extern const bfd_target bfd_elf32_i860_vec;
|
|
extern const bfd_target bfd_elf32_little_generic_vec;
|
|
extern const bfd_target bfd_elf32_littlemips_vec;
|
|
extern const bfd_target bfd_elf32_m68k_vec;
|
|
extern const bfd_target bfd_elf32_m88k_vec;
|
|
extern const bfd_target bfd_elf32_powerpc_vec;
|
|
extern const bfd_target bfd_elf32_sparc_vec;
|
|
extern const bfd_target bfd_elf64_big_generic_vec;
|
|
extern const bfd_target bfd_elf64_little_generic_vec;
|
|
extern const bfd_target bfd_elf64_sparc_vec;
|
|
extern const bfd_target demo_64_vec;
|
|
extern const bfd_target ecoff_big_vec;
|
|
extern const bfd_target ecoff_little_vec;
|
|
extern const bfd_target ecoffalpha_little_vec;
|
|
extern const bfd_target h8300coff_vec;
|
|
extern const bfd_target h8500coff_vec;
|
|
extern const bfd_target host_aout_vec;
|
|
extern const bfd_target hp300bsd_vec;
|
|
extern const bfd_target hp300hpux_vec;
|
|
extern const bfd_target som_vec;
|
|
extern const bfd_target i386aout_vec;
|
|
extern const bfd_target i386bsd_vec;
|
|
extern const bfd_target i386dynix_vec;
|
|
extern const bfd_target i386os9k_vec;
|
|
extern const bfd_target netbsd386_vec;
|
|
extern const bfd_target freebsd386_vec;
|
|
extern const bfd_target i386coff_vec;
|
|
extern const bfd_target go32coff_vec;
|
|
extern const bfd_target i386linux_vec;
|
|
extern const bfd_target i386lynx_aout_vec;
|
|
extern const bfd_target i386lynx_coff_vec;
|
|
extern const bfd_target i386mach3_vec;
|
|
extern const bfd_target icoff_big_vec;
|
|
extern const bfd_target icoff_little_vec;
|
|
extern const bfd_target ieee_vec;
|
|
extern const bfd_target m68kcoff_vec;
|
|
extern const bfd_target m68kcoffun_vec;
|
|
extern const bfd_target m68klynx_aout_vec;
|
|
extern const bfd_target m68klynx_coff_vec;
|
|
extern const bfd_target m88kbcs_vec;
|
|
extern const bfd_target m88kmach3_vec;
|
|
extern const bfd_target netbsd532_vec;
|
|
extern const bfd_target newsos3_vec;
|
|
extern const bfd_target nlm32_i386_vec;
|
|
extern const bfd_target nlm32_sparc_vec;
|
|
extern const bfd_target nlm32_alpha_vec;
|
|
extern const bfd_target nlm32_powerpc_vec;
|
|
extern const bfd_target oasys_vec;
|
|
extern const bfd_target pc532mach_vec;
|
|
extern const bfd_target rs6000coff_vec;
|
|
extern const bfd_target shcoff_vec;
|
|
extern const bfd_target sparclynx_aout_vec;
|
|
extern const bfd_target sparclynx_coff_vec;
|
|
extern const bfd_target sparccoff_vec;
|
|
extern const bfd_target sunos_big_vec;
|
|
extern const bfd_target tekhex_vec;
|
|
extern const bfd_target we32kcoff_vec;
|
|
extern const bfd_target z8kcoff_vec;
|
|
|
|
/* srec is always included. */
|
|
extern const bfd_target srec_vec;
|
|
extern const bfd_target symbolsrec_vec;
|
|
|
|
/* All of the xvecs for core files. */
|
|
extern const bfd_target aix386_core_vec;
|
|
extern const bfd_target cisco_core_vec;
|
|
extern const bfd_target hpux_core_vec;
|
|
extern const bfd_target hppabsd_core_vec;
|
|
extern const bfd_target irix_core_vec;
|
|
extern const bfd_target osf_core_vec;
|
|
extern const bfd_target sco_core_vec;
|
|
extern const bfd_target trad_core_vec;
|
|
extern const bfd_target ptrace_core_vec;
|
|
|
|
const bfd_target * const bfd_target_vector[] = {
|
|
|
|
#ifdef SELECT_VECS
|
|
|
|
SELECT_VECS,
|
|
|
|
#else /* not SELECT_VECS */
|
|
|
|
#ifdef DEFAULT_VECTOR
|
|
&DEFAULT_VECTOR,
|
|
#endif
|
|
/* This list is alphabetized to make it easy to compare
|
|
with other vector lists -- the decls above and
|
|
the case statement in configure.in.
|
|
Vectors that don't compile on all systems, or aren't finished,
|
|
should have an entry here with #if 0 around it, to show that
|
|
it wasn't omitted by mistake. */
|
|
&a29kcoff_big_vec,
|
|
&a_out_adobe_vec,
|
|
#if 0 /* No one seems to use this. */
|
|
&aout_mips_big_vec,
|
|
#endif
|
|
&aout_mips_little_vec,
|
|
&b_out_vec_big_host,
|
|
&b_out_vec_little_host,
|
|
|
|
/* This, and other vectors, may not be used in any *.mt configuration.
|
|
But that does not mean they are unnecessary. If configured with
|
|
--enable-targets=all, objdump or gdb should be able to examine
|
|
the file even if we don't recognize the machine type. */
|
|
&bfd_elf32_big_generic_vec,
|
|
&bfd_elf32_bigmips_vec,
|
|
&bfd_elf32_hppa_vec,
|
|
&bfd_elf32_i386_vec,
|
|
&bfd_elf32_i860_vec,
|
|
&bfd_elf32_little_generic_vec,
|
|
&bfd_elf32_littlemips_vec,
|
|
&bfd_elf32_m68k_vec,
|
|
&bfd_elf32_m88k_vec,
|
|
&bfd_elf32_sparc_vec,
|
|
&bfd_elf32_powerpc_vec,
|
|
#ifdef BFD64 /* No one seems to use this. */
|
|
&bfd_elf64_big_generic_vec,
|
|
&bfd_elf64_little_generic_vec,
|
|
#endif
|
|
#if 0
|
|
&bfd_elf64_sparc_vec,
|
|
#endif
|
|
/* We don't include cisco_core_vec. Although it has a magic number,
|
|
the magic number isn't at the beginning of the file, and thus
|
|
might spuriously match other kinds of files. */
|
|
#ifdef BFD64
|
|
&demo_64_vec, /* Only compiled if host has long-long support */
|
|
#endif
|
|
&ecoff_big_vec,
|
|
&ecoff_little_vec,
|
|
#if 0
|
|
&ecoffalpha_little_vec,
|
|
#endif
|
|
&h8300coff_vec,
|
|
&h8500coff_vec,
|
|
#if 0
|
|
/* Since a.out files lack decent magic numbers, no way to recognize
|
|
which kind of a.out file it is. */
|
|
&host_aout_vec,
|
|
#endif
|
|
#if 0 /* Clashes with sunos_big_vec magic no. */
|
|
&hp300bsd_vec,
|
|
#endif
|
|
&hp300hpux_vec,
|
|
#if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF)
|
|
&som_vec,
|
|
#endif
|
|
&i386aout_vec,
|
|
&i386bsd_vec,
|
|
&i386coff_vec,
|
|
&go32coff_vec,
|
|
#if 0
|
|
/* Since a.out files lack decent magic numbers, no way to recognize
|
|
which kind of a.out file it is. */
|
|
&i386linux_vec,
|
|
#endif
|
|
&i386lynx_aout_vec,
|
|
&i386lynx_coff_vec,
|
|
#if 0
|
|
/* No distinguishing features for Mach 3 executables. */
|
|
&i386mach3_vec,
|
|
#endif
|
|
&i386os9k_vec,
|
|
&icoff_big_vec,
|
|
&icoff_little_vec,
|
|
&ieee_vec,
|
|
&m68kcoff_vec,
|
|
&m68kcoffun_vec,
|
|
&m68klynx_aout_vec,
|
|
&m68klynx_coff_vec,
|
|
&m88kbcs_vec,
|
|
&m88kmach3_vec,
|
|
&newsos3_vec,
|
|
&netbsd386_vec,
|
|
&netbsd532_vec,
|
|
&nlm32_i386_vec,
|
|
&nlm32_sparc_vec,
|
|
#ifdef BFD64
|
|
&nlm32_alpha_vec,
|
|
#endif
|
|
#if 0
|
|
/* We have no oasys tools anymore, so we can't test any of this
|
|
anymore. If you want to test the stuff yourself, go ahead...
|
|
steve@cygnus.com
|
|
Worse, since there is no magic number for archives, there
|
|
can be annoying target mis-matches. */
|
|
&oasys_vec,
|
|
#endif
|
|
&pc532machaout_vec,
|
|
&rs6000coff_vec,
|
|
&shcoff_vec,
|
|
&sparclynx_aout_vec,
|
|
&sparclynx_coff_vec,
|
|
&sunos_big_vec,
|
|
&aout0_big_vec,
|
|
#if 0
|
|
&tekhex_vec,
|
|
#endif
|
|
&we32kcoff_vec,
|
|
&z8kcoff_vec,
|
|
|
|
#endif /* not SELECT_VECS */
|
|
|
|
/* Always support S-records, for convenience. */
|
|
&srec_vec,
|
|
&symbolsrec_vec,
|
|
|
|
/* Add any required traditional-core-file-handler. */
|
|
|
|
#ifdef AIX386_CORE
|
|
&aix386_core_vec,
|
|
#endif
|
|
#ifdef HPUX_CORE
|
|
&hpux_core_vec,
|
|
#endif
|
|
#ifdef HPPABSD_CORE
|
|
&hppabsd_core_vec,
|
|
#endif
|
|
#ifdef IRIX_CORE
|
|
&irix_core_vec,
|
|
#endif
|
|
#ifdef OSF_CORE
|
|
&osf_core_vec,
|
|
#endif
|
|
#ifdef TRAD_CORE
|
|
&trad_core_vec,
|
|
#endif
|
|
|
|
#ifdef PTRACE_CORE
|
|
&ptrace_core_vec,
|
|
#endif
|
|
|
|
NULL /* end of list marker */
|
|
};
|
|
|
|
/* bfd_default_vector[0] contains either the address of the default vector,
|
|
if there is one, or zero if there isn't. */
|
|
|
|
const bfd_target * const bfd_default_vector[] = {
|
|
#ifdef DEFAULT_VECTOR
|
|
&DEFAULT_VECTOR,
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
/* When there is an ambiguous match, bfd_check_format_matches puts the
|
|
names of the matching targets in an array. This variable is the maximum
|
|
number of entries that the array could possibly need. */
|
|
const size_t _bfd_target_vector_entries = sizeof(bfd_target_vector)/sizeof(*bfd_target_vector);
|
|
|
|
/*
|
|
FUNCTION
|
|
bfd_find_target
|
|
|
|
SYNOPSIS
|
|
const bfd_target *bfd_find_target(CONST char *target_name, bfd *abfd);
|
|
|
|
DESCRIPTION
|
|
Return a pointer to the transfer vector for the object target
|
|
named @var{target_name}. If @var{target_name} is <<NULL>>, choose the
|
|
one in the environment variable <<GNUTARGET>>; if that is null or not
|
|
defined, then choose the first entry in the target list.
|
|
Passing in the string "default" or setting the environment
|
|
variable to "default" will cause the first entry in the target
|
|
list to be returned, and "target_defaulted" will be set in the
|
|
BFD. This causes <<bfd_check_format>> to loop over all the
|
|
targets to find the one that matches the file being read.
|
|
*/
|
|
|
|
const bfd_target *
|
|
bfd_find_target (target_name, abfd)
|
|
CONST char *target_name;
|
|
bfd *abfd;
|
|
{
|
|
const bfd_target * const *target;
|
|
extern char *getenv ();
|
|
CONST char *targname = (target_name ? target_name :
|
|
(CONST char *) getenv ("GNUTARGET"));
|
|
|
|
/* This is safe; the vector cannot be null */
|
|
if (targname == NULL || !strcmp (targname, "default")) {
|
|
abfd->target_defaulted = true;
|
|
return abfd->xvec = bfd_target_vector[0];
|
|
}
|
|
|
|
abfd->target_defaulted = false;
|
|
|
|
for (target = &bfd_target_vector[0]; *target != NULL; target++) {
|
|
if (!strcmp (targname, (*target)->name))
|
|
return abfd->xvec = *target;
|
|
}
|
|
|
|
bfd_set_error (bfd_error_invalid_target);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
FUNCTION
|
|
bfd_target_list
|
|
|
|
SYNOPSIS
|
|
const char **bfd_target_list(void);
|
|
|
|
DESCRIPTION
|
|
Return a freshly malloced NULL-terminated
|
|
vector of the names of all the valid BFD targets. Do not
|
|
modify the names.
|
|
|
|
*/
|
|
|
|
const char **
|
|
bfd_target_list ()
|
|
{
|
|
int vec_length= 0;
|
|
#ifdef NATIVE_HPPAHPUX_COMPILER
|
|
/* The native compiler on the HP9000/700 has a bug which causes it
|
|
to loop endlessly when compiling this file. This avoids it. */
|
|
volatile
|
|
#endif
|
|
const bfd_target * const *target;
|
|
CONST char **name_list, **name_ptr;
|
|
|
|
for (target = &bfd_target_vector[0]; *target != NULL; target++)
|
|
vec_length++;
|
|
|
|
name_ptr = name_list = (CONST char **)
|
|
bfd_zmalloc ((vec_length + 1) * sizeof (char **));
|
|
|
|
if (name_list == NULL) {
|
|
bfd_set_error (bfd_error_no_memory);
|
|
return NULL;
|
|
}
|
|
|
|
for (target = &bfd_target_vector[0]; *target != NULL; target++)
|
|
*(name_ptr++) = (*target)->name;
|
|
|
|
return name_list;
|
|
}
|