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-rw-r--r--binutils-2.25/bfd/sparclynx.c247
1 files changed, 247 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/sparclynx.c b/binutils-2.25/bfd/sparclynx.c
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+++ b/binutils-2.25/bfd/sparclynx.c
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+/* BFD support for Sparc binaries under LynxOS.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000,
+ 2001, 2002, 2003, 2005, 2007, 2012 Free Software Foundation, Inc.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+
+/* Do not "beautify" the CONCAT* macro args. Traditional C will not
+ remove whitespace added here, and thus will fail to concatenate
+ the tokens. */
+#define MY(OP) CONCAT2 (sparclynx_aout_,OP)
+#define TARGETNAME "a.out-sparc-lynx"
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+
+#include "aout/sun4.h"
+#include "libaout.h" /* BFD a.out internal data structures */
+
+#include "aout/aout64.h"
+#include "aout/stab_gnu.h"
+#include "aout/ar.h"
+
+void NAME (lynx,set_arch_mach) (bfd *, unsigned long);
+static void choose_reloc_size (bfd *);
+static bfd_boolean NAME (aout,sparclynx_write_object_contents) (bfd *);
+
+/* This is needed to reject a NewsOS file, e.g. in
+ gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
+ I needed to add M_UNKNOWN to recognize a 68000 object, so this will
+ probably no longer reject a NewsOS object. <ian@cygnus.com>. */
+#define MACHTYPE_OK(mtype) ( (mtype) == M_UNKNOWN \
+ || (mtype) == M_68010 \
+ || (mtype) == M_68020 \
+ || (mtype) == M_SPARC)
+
+/* The file @code{aoutf1.h} contains the code for BFD's
+ a.out back end. Control over the generated back end is given by these
+ two preprocessor names:
+ @table @code
+ @item ARCH_SIZE
+ This value should be either 32 or 64, depending upon the size of an
+ int in the target format. It changes the sizes of the structs which
+ perform the memory/disk mapping of structures.
+
+ The 64 bit backend may only be used if the host compiler supports 64
+ ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
+ With this name defined, @emph{all} bfd operations are performed with 64bit
+ arithmetic, not just those to a 64bit target.
+
+ @item TARGETNAME
+ The name put into the target vector.
+ @item
+ @end table */
+
+void
+NAME(lynx,set_arch_mach) (bfd *abfd, unsigned long machtype)
+{
+ /* Determine the architecture and machine type of the object file. */
+ enum bfd_architecture arch;
+ unsigned long machine;
+
+ switch (machtype)
+ {
+ case M_UNKNOWN:
+ /* Some Sun3s make magic numbers without cpu types in them, so
+ we'll default to the 68000. */
+ arch = bfd_arch_m68k;
+ machine = bfd_mach_m68000;
+ break;
+
+ case M_68010:
+ case M_HP200:
+ arch = bfd_arch_m68k;
+ machine = bfd_mach_m68010;
+ break;
+
+ case M_68020:
+ case M_HP300:
+ arch = bfd_arch_m68k;
+ machine = bfd_mach_m68020;
+ break;
+
+ case M_SPARC:
+ arch = bfd_arch_sparc;
+ machine = 0;
+ break;
+
+ case M_386:
+ case M_386_DYNIX:
+ arch = bfd_arch_i386;
+ machine = 0;
+ break;
+
+ case M_HPUX:
+ arch = bfd_arch_m68k;
+ machine = 0;
+ break;
+
+ default:
+ arch = bfd_arch_obscure;
+ machine = 0;
+ break;
+ }
+ bfd_set_arch_mach (abfd, arch, machine);
+}
+
+#define SET_ARCH_MACH(ABFD, EXEC) \
+ NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
+ choose_reloc_size(ABFD);
+
+/* Determine the size of a relocation entry, based on the architecture. */
+
+static void
+choose_reloc_size (bfd *abfd)
+{
+ switch (bfd_get_arch (abfd))
+ {
+ case bfd_arch_sparc:
+ obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
+ break;
+ default:
+ obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
+ break;
+ }
+}
+
+/* Write an object file in LynxOS format.
+ Section contents have already been written. We write the
+ file header, symbols, and relocation. */
+
+static bfd_boolean
+NAME(aout,sparclynx_write_object_contents) (bfd *abfd)
+{
+ struct external_exec exec_bytes;
+ struct internal_exec *execp = exec_hdr (abfd);
+
+ /* Magic number, maestro, please! */
+ switch (bfd_get_arch (abfd))
+ {
+ case bfd_arch_m68k:
+ switch (bfd_get_mach (abfd))
+ {
+ case bfd_mach_m68010:
+ N_SET_MACHTYPE (*execp, M_68010);
+ break;
+ default:
+ case bfd_mach_m68020:
+ N_SET_MACHTYPE (*execp, M_68020);
+ break;
+ }
+ break;
+ case bfd_arch_sparc:
+ N_SET_MACHTYPE (*execp, M_SPARC);
+ break;
+ case bfd_arch_i386:
+ N_SET_MACHTYPE (*execp, M_386);
+ break;
+ default:
+ N_SET_MACHTYPE (*execp, M_UNKNOWN);
+ }
+
+ choose_reloc_size (abfd);
+
+ N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
+
+ WRITE_HEADERS (abfd, execp);
+
+ return TRUE;
+}
+
+#define MY_set_sizes sparclynx_set_sizes
+static bfd_boolean sparclynx_set_sizes (bfd *);
+
+static bfd_boolean
+sparclynx_set_sizes (bfd *abfd)
+{
+ switch (bfd_get_arch (abfd))
+ {
+ default:
+ return FALSE;
+ case bfd_arch_sparc:
+ adata (abfd).page_size = 0x2000;
+ adata (abfd).segment_size = 0x2000;
+ adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+ return TRUE;
+ case bfd_arch_m68k:
+ adata (abfd).page_size = 0x2000;
+ adata (abfd).segment_size = 0x20000;
+ adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+ return TRUE;
+ }
+}
+
+static const struct aout_backend_data sparclynx_aout_backend =
+ {
+ 0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
+ 0, /* add_dynamic_symbols */
+ 0, /* add_one_symbol */
+ 0, /* link_dynamic_object */
+ 0, /* write_dynamic_symbol */
+ 0, /* check_dynamic_reloc */
+ 0 /* finish_dynamic_link */
+ };
+
+
+#define MY_bfd_debug_info_start bfd_void
+#define MY_bfd_debug_info_end bfd_void
+#define MY_bfd_debug_info_accumulate \
+ (void (*) (bfd *, struct bfd_section *)) bfd_void
+
+#define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
+#define MY_backend_data &sparclynx_aout_backend
+
+#define TARGET_IS_BIG_ENDIAN_P
+
+#ifdef LYNX_CORE
+
+char * lynx_core_file_failing_command ();
+int lynx_core_file_failing_signal ();
+bfd_boolean lynx_core_file_matches_executable_p ();
+const bfd_target * lynx_core_file_p ();
+
+#define MY_core_file_failing_command lynx_core_file_failing_command
+#define MY_core_file_failing_signal lynx_core_file_failing_signal
+#define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
+#define MY_core_file_p lynx_core_file_p
+
+#endif /* LYNX_CORE */
+
+#include "aout-target.h"
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