darling-gdb/bfd/targets.c

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Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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/* Generic target-file-type support for the BFD library.
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Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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Written by Cygnus Support.
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Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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This file is part of BFD, the Binary File Descriptor library.
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Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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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
Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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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
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
Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "bfd.h"
#include "sysdep.h"
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#include "libbfd.h"
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/*
SECTION
Targets
DESCRIPTION
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Each port of BFD to a different machine requries the creation
of a target back end. All the back end provides to the root
part of BFD is a structure containing pointers to functions
which perform certain low level operations on files. BFD
translates the applications's requests through a pointer into
calls to the back end routines.
When a file is opened with <<bfd_openr>>, its format and
target are unknown. BFD uses various mechanisms to determine
how to interpret the file. The operations performed are:
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o Create a BFD by calling the internal routine
<<new_bfd>>, then call <<bfd_find_target>> with the
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target string supplied to <<bfd_openr>> and the new BFD pointer.
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.
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
as the target type, and set <<target_defaulted>> in the BFD to
cause <<bfd_check_format>> to loop through all the targets.
@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 <<invalid_target>> to
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<<bfd_openr>>.
o <<bfd_openr>> attempts to open the file using
<<bfd_open_file>>, and returns the BFD.
Once the BFD has been opened and the target selected, the file
format may be determined. This is done by calling
<<bfd_check_format>> on the BFD with a suggested format.
If <<target_defaulted>> has been set, each possible target
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type is tried to see if it recognizes the specified format.
<<bfd_check_format>> returns <<true>> when the caller guesses right.
@menu
@* bfd_target::
@end menu
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*/
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/*
INODE
bfd_target, , Targets, Targets
DOCDD
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SUBSECTION
bfd_target
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
routines to call to do various operations.
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Every BFD points to a target structure with its <<xvec>>
member.
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The macros below are used to dispatch to functions through the
<<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
to the called function.
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They make the documentation (more) unpleasant to read, so if
someone wants to fix this and not break the above, please do.
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.#define BFD_SEND(bfd, message, arglist) \
. ((*((bfd)->xvec->message)) arglist)
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For operations which index on the BFD format:
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.#define BFD_SEND_FMT(bfd, message, arglist) \
. (((bfd)->xvec->message[(int)((bfd)->format)]) arglist)
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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
module that implements access to a different target under BFD,
defines one of these.
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FIXME, these names should be rationalised with the names of
the entry points which call them. Too bad we can't have one
macro to define them both!
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.enum bfd_flavour {
. bfd_target_unknown_flavour,
. bfd_target_aout_flavour,
. bfd_target_coff_flavour,
. bfd_target_ecoff_flavour,
. bfd_target_elf_flavour,
. bfd_target_ieee_flavour,
. bfd_target_nlm_flavour,
. bfd_target_oasys_flavour,
. bfd_target_tekhex_flavour,
. bfd_target_srec_flavour,
. bfd_target_som_flavour};
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.typedef struct bfd_target
.{
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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
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 `_'.
. 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.
. 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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1993-11-05 19:51:52 +00:00
Entries for byte swapping for data. These are different from the other
entry points, since they don't take a BFD asthe first argument.
Certain other handlers could do the same.
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. bfd_vma (*bfd_getx64) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((bfd_byte *));
. void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_getx32) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((bfd_byte *));
. void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_getx16) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((bfd_byte *));
. void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
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Byte swapping for the headers
. bfd_vma (*bfd_h_getx64) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((bfd_byte *));
. void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_h_getx32) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((bfd_byte *));
. void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_h_getx16) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((bfd_byte *));
. void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
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Format dependent routines: these are vectors of entry points
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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. struct bfd_target * (*_bfd_check_format[bfd_type_end]) PARAMS ((bfd *));
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Set the format of a file being written.
. 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 following functions are defined in <<JUMP_TABLE>>. The idea is
that the back end writer of <<foo>> names all the routines
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<<foo_>>@var{entry_point}; <<JUMP_TABLE>> will build the entries
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in this structure in the right order.
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Core file entry points.
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. char * (*_core_file_failing_command) PARAMS ((bfd *));
. int (*_core_file_failing_signal) PARAMS ((bfd *));
. boolean (*_core_file_matches_executable_p) PARAMS ((bfd *, bfd *));
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Archive entry points.
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. boolean (*_bfd_slurp_armap) PARAMS ((bfd *));
. boolean (*_bfd_slurp_extended_name_table) PARAMS ((bfd *));
. void (*_bfd_truncate_arname) PARAMS ((bfd *, CONST char *, char *));
. boolean (*write_armap) PARAMS ((bfd *arch,
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. unsigned int elength,
. struct orl *map,
. unsigned int orl_count,
. int stridx));
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Standard stuff.
. boolean (*_close_and_cleanup) PARAMS ((bfd *));
. boolean (*_bfd_set_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1991-12-01 00:39:12 +00:00
. file_ptr, bfd_size_type));
. boolean (*_bfd_get_section_contents) PARAMS ((bfd *, sec_ptr, PTR,
1991-12-01 00:39:12 +00:00
. file_ptr, bfd_size_type));
. boolean (*_new_section_hook) PARAMS ((bfd *, sec_ptr));
1991-07-04 16:52:56 +00:00
1993-11-05 19:51:52 +00:00
Symbols and relocations.
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. unsigned int (*_get_symtab_upper_bound) PARAMS ((bfd *));
. unsigned int (*_bfd_canonicalize_symtab) PARAMS ((bfd *,
. struct symbol_cache_entry **));
. unsigned int (*_get_reloc_upper_bound) PARAMS ((bfd *, sec_ptr));
. unsigned int (*_bfd_canonicalize_reloc) PARAMS ((bfd *, sec_ptr, arelent **,
. struct symbol_cache_entry **));
. struct symbol_cache_entry *
. (*_bfd_make_empty_symbol) PARAMS ((bfd *));
. void (*_bfd_print_symbol) PARAMS ((bfd *, PTR,
. struct symbol_cache_entry *,
1991-12-01 00:39:12 +00:00
. bfd_print_symbol_type));
.#define bfd_print_symbol(b,p,s,e) BFD_SEND(b, _bfd_print_symbol, (b,p,s,e))
. void (*_bfd_get_symbol_info) PARAMS ((bfd *,
. struct symbol_cache_entry *,
. symbol_info *));
.#define bfd_get_symbol_info(b,p,e) BFD_SEND(b, _bfd_get_symbol_info, (b,p,e))
. alent * (*_get_lineno) PARAMS ((bfd *, struct symbol_cache_entry *));
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.
. boolean (*_bfd_set_arch_mach) PARAMS ((bfd *, enum bfd_architecture,
. unsigned long));
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.
. bfd * (*openr_next_archived_file) PARAMS ((bfd *arch, bfd *prev));
.
. boolean (*_bfd_find_nearest_line) PARAMS ((bfd *abfd,
. struct sec *section, struct symbol_cache_entry **symbols,
. bfd_vma offset, CONST char **file, CONST char **func,
. unsigned int *line));
.
. int (*_bfd_stat_arch_elt) PARAMS ((bfd *, struct stat *));
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.
. int (*_bfd_sizeof_headers) PARAMS ((bfd *, boolean));
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.
. void (*_bfd_debug_info_start) PARAMS ((bfd *));
. void (*_bfd_debug_info_end) PARAMS ((bfd *));
. void (*_bfd_debug_info_accumulate) PARAMS ((bfd *, struct sec *));
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.
. bfd_byte * (*_bfd_get_relocated_section_contents) PARAMS ((bfd *,
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. struct bfd_seclet *, bfd_byte *data,
. boolean relocateable));
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.
. boolean (*_bfd_relax_section) PARAMS ((bfd *, struct sec *,
. struct symbol_cache_entry **));
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.
. boolean (*_bfd_seclet_link) PARAMS ((bfd *, PTR data,
. boolean relocateable));
. {* See documentation on reloc types. *}
. CONST struct reloc_howto_struct *
. (*reloc_type_lookup) PARAMS ((bfd *abfd,
. bfd_reloc_code_real_type code));
.
. {* Back-door to allow format-aware applications to create debug symbols
. while using BFD for everything else. Currently used by the assembler
. when creating COFF files. *}
. asymbol * (*_bfd_make_debug_symbol) PARAMS ((
. bfd *abfd,
. void *ptr,
. unsigned long size));
Data for use by back-end routines, which isn't generic enough to belong
in this structure.
. 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).
Alphabetized for easy reference.
They are listed a second time below, since
we can't intermix extern's and initializers. */
extern bfd_target a29kcoff_big_vec;
extern bfd_target a_out_adobe_vec;
extern bfd_target aout_mips_big_vec;
extern bfd_target aout_mips_little_vec;
extern bfd_target apollocoff_vec;
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extern bfd_target b_out_vec_big_host;
extern bfd_target b_out_vec_little_host;
extern bfd_target bfd_elf32_big_generic_vec;
extern bfd_target bfd_elf32_bigmips_vec;
extern bfd_target bfd_elf32_hppa_vec;
extern bfd_target bfd_elf32_i386_vec;
extern bfd_target bfd_elf32_i860_vec;
extern bfd_target bfd_elf32_little_generic_vec;
extern bfd_target bfd_elf32_littlemips_vec;
extern bfd_target bfd_elf32_m68k_vec;
extern bfd_target bfd_elf32_m88k_vec;
extern bfd_target bfd_elf32_sparc_vec;
extern bfd_target bfd_elf64_big_generic_vec;
extern bfd_target bfd_elf64_little_generic_vec;
/* start-sanitize-v9 */
extern bfd_target bfd_elf64_sparc_vec;
/* end-sanitize-v9 */
extern bfd_target demo_64_vec;
extern bfd_target ecoff_big_vec;
extern bfd_target ecoff_little_vec;
extern bfd_target ecoffalpha_little_vec;
extern bfd_target h8300coff_vec;
extern bfd_target h8500coff_vec;
extern bfd_target host_aout_vec;
extern bfd_target hp300bsd_vec;
extern bfd_target hp300hpux_vec;
extern bfd_target som_vec;
extern bfd_target i386aout_vec;
extern bfd_target i386bsd_vec;
extern bfd_target netbsd386_vec;
extern bfd_target i386coff_vec;
extern bfd_target i386linux_vec;
extern bfd_target i386lynx_aout_vec;
extern bfd_target i386lynx_coff_vec;
extern bfd_target i386mach3_vec;
extern bfd_target icoff_big_vec;
extern bfd_target icoff_little_vec;
extern bfd_target ieee_vec;
extern bfd_target m68kcoff_vec;
extern bfd_target m68kcoffun_vec;
extern bfd_target m68klynx_aout_vec;
extern bfd_target m68klynx_coff_vec;
extern bfd_target m88kbcs_vec;
extern bfd_target newsos3_vec;
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extern bfd_target nlm32_big_generic_vec;
extern bfd_target nlm32_i386_vec;
extern bfd_target nlm32_sparc_vec;
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extern bfd_target nlm32_little_generic_vec;
extern bfd_target nlm64_big_generic_vec;
extern bfd_target nlm64_little_generic_vec;
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extern bfd_target oasys_vec;
extern bfd_target rs6000coff_vec;
extern bfd_target shcoff_vec;
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extern bfd_target sparclynx_aout_vec;
extern bfd_target sparclynx_coff_vec;
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extern bfd_target sparccoff_vec;
extern bfd_target sunos_big_vec;
extern bfd_target tekhex_vec;
extern bfd_target we32kcoff_vec;
extern bfd_target z8kcoff_vec;
/* srec is always included. */
extern bfd_target srec_vec;
extern bfd_target symbolsrec_vec;
/* All of the xvecs for core files. */
extern bfd_target aix386_core_vec;
extern bfd_target hpux_core_vec;
extern bfd_target hppabsd_core_vec;
extern bfd_target irix_core_vec;
extern bfd_target osf_core_vec;
extern bfd_target sco_core_vec;
extern bfd_target trad_core_vec;
extern bfd_target ptrace_core_vec;
1991-11-22 19:09:03 +00:00
Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
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bfd_target *target_vector[] = {
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#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. */
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&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-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,
#ifdef BFD64 /* No one seems to use this. */
&bfd_elf64_big_generic_vec,
&bfd_elf64_little_generic_vec,
#endif
/* start-sanitize-v9 */
#if 0
&bfd_elf64_sparc_vec,
#endif
/* end-sanitize-v9 */
#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)
&som_vec,
#endif
&i386aout_vec,
&i386bsd_vec,
&netbsd386_vec,
&i386coff_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,
&icoff_big_vec,
&icoff_little_vec,
&ieee_vec,
&m68kcoff_vec,
&m68kcoffun_vec,
&m68klynx_aout_vec,
&m68klynx_coff_vec,
&m88kbcs_vec,
&newsos3_vec,
&nlm32_big_generic_vec,
1993-08-06 20:11:42 +00:00
&nlm32_i386_vec,
&nlm32_sparc_vec,
#ifdef BFD64
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&nlm64_big_generic_vec,
&nlm64_little_generic_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
&rs6000coff_vec,
&shcoff_vec,
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&sparclynx_aout_vec,
&sparclynx_coff_vec,
&sunos_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
1993-02-27 01:43:10 +00:00
#ifdef PTRACE_CORE
&ptrace_core_vec,
#endif
NULL /* end of list marker */
1991-04-18 01:55:45 +00:00
};
/* default_vector[0] contains either the address of the default vector,
if there is one, or zero if there isn't. */
bfd_target *default_vector[] = {
#ifdef DEFAULT_VECTOR
&DEFAULT_VECTOR,
#endif
NULL
};
1991-07-04 16:52:56 +00:00
1991-12-01 00:39:12 +00:00
/*
FUNCTION
bfd_find_target
1993-11-05 19:51:52 +00:00
SYNOPSIS
bfd_target *bfd_find_target(CONST char *target_name, bfd *abfd);
1991-12-01 00:39:12 +00:00
DESCRIPTION
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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
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defined, then choose the first entry in the target list.
1991-12-01 00:39:12 +00:00
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.
*/
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bfd_target *
DEFUN(bfd_find_target,(target_name, abfd),
CONST char *target_name AND
bfd *abfd)
{
bfd_target **target;
extern char *getenv ();
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CONST char *targname = (target_name ? target_name :
(CONST char *) getenv ("GNUTARGET"));
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/* This is safe; the vector cannot be null */
if (targname == NULL || !strcmp (targname, "default")) {
abfd->target_defaulted = true;
return abfd->xvec = target_vector[0];
}
abfd->target_defaulted = false;
for (target = &target_vector[0]; *target != NULL; target++) {
if (!strcmp (targname, (*target)->name))
return abfd->xvec = *target;
}
bfd_error = invalid_target;
return NULL;
}
1991-12-01 00:39:12 +00:00
/*
FUNCTION
bfd_target_list
SYNOPSIS
CONST char **bfd_target_list(void);
1991-12-01 00:39:12 +00:00
1993-11-05 19:51:52 +00:00
DESCRIPTION
Return a freshly malloced NULL-terminated
vector of the names of all the valid BFD targets. Do not
modify the names.
1991-12-01 00:39:12 +00:00
*/
1991-07-04 16:52:56 +00:00
CONST char **
DEFUN_VOID(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
bfd_target **target;
Mon Sep 30 15:13:46 1991 Steve Chamberlain (steve at cygnus.com) * cpu-a29k.c, cpu-i386.c, cpu-m68k.c, cpu-mips.c, cpu-vax.c, cpu-h8300.c, cpu-i960.c, cpu-m88k.c, cpu-sparc.c: added. These files will eventually contain processor specific bits for bfd, like strange relocation information and dis/assembly. So far only the H8 has been even partially done. This work also ties in with the change in handling architectures. * aout-f1.h: (choose_reloc_size) now calls bfd_get_arch to discover the architecture of the bfd. (sunos4_callback) calls the function bfd_set_arch_mach rather than stuffing stuff directly into the bfd. (sunos4_write_object_contents), changed names of accessor functions. * aoutx.h: (set_arch_mach) now calls bfd_default_set_arch_mach to setup the environment. * archive.c: (bfd_slurp_coff_armap) coff archives always have the headers in big endian format, regardless of the endianess of the host or target. * archures.c: totally changed. Now an architecture is represented with a pointer to an info structure rather than an enumerated type and a long. The old info is available as two elements in the structure. Future enhancements to architecure support will involve pointers to methods being placed into the info structure. * bfd.c: changed the definition of the bfd structure for the new architecture stuff. * bout.c: (b_out_set_arch_mach) changed to use the new architecture mechanism. * coffcode.h: (coff_set_arch_mach, coff_set_flags) changed to use the new architecture mechanism. * configure.in: added h8 stuff. * ieee.c: too many changes to note. Now ieee files written with bfd gas and ld can be read by gld and ieee only linkers and simulators. * libbfd.c, libbfd.h: changed prototype of bfd_write. * newsos3.c: (newos3_callback) now calls bfd_set_arch_mach rather than fixing the structure directly. * oasys.c: (oasys_object_p) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * opncls.c: (new_bfd) makes sure that bfd_init has been called before opening a bfd. * srec.c: (srec_set_arch_mach) now calls bfd_default_set_arch_mach rather than fixing the structure directly. * targets.c: (target_vector) now by defining SELECT_VECS (perhaps in the t/hmake file) a user can select which backends they want linked with bfd without changing the source. * init.c: new, looks after initializing modules. * howto.c: for future use, will allow an application to work out what cookie to use as a handle on a relcoatio howto.
1991-10-01 03:43:43 +00:00
CONST char **name_list, **name_ptr;
1991-07-04 16:52:56 +00:00
for (target = &target_vector[0]; *target != NULL; target++)
vec_length++;
name_ptr =
name_list = (CONST char **) zalloc ((vec_length + 1) * sizeof (char **));
if (name_list == NULL) {
bfd_error = no_memory;
return NULL;
}
for (target = &target_vector[0]; *target != NULL; target++)
*(name_ptr++) = (*target)->name;
return name_list;
}