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Diffstat (limited to 'bfd/sparclynx.c')
| -rw-r--r-- | bfd/sparclynx.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/bfd/sparclynx.c b/bfd/sparclynx.c new file mode 100644 index 00000000000..dbfcae55cbe --- /dev/null +++ b/bfd/sparclynx.c @@ -0,0 +1,266 @@ +/* BFD support for Sparc binaries under LynxOS. + Copyright (C) 1990, 91, 92, 93, 94, 95, 97, 1998 + 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 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if 0 +#define BYTES_IN_WORD 4 +#define N_SHARED_LIB(x) 0 + +#define TEXT_START_ADDR 0 +#define TARGET_PAGE_SIZE 4096 +#define SEGMENT_SIZE TARGET_PAGE_SIZE +#define DEFAULT_ARCH bfd_arch_sparc + +#endif + +#define MY(OP) CAT(sparclynx_aout_,OP) +#define TARGETNAME "a.out-sparc-lynx" + +#include "bfd.h" +#include "sysdep.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" + +/* 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 + +*/ + +/*SUPPRESS558*/ +/*SUPPRESS529*/ + +void +NAME(lynx,set_arch_mach) (abfd, machtype) + bfd *abfd; + int machtype; +{ + /* Determine the architecture and machine type of the object file. */ + enum bfd_architecture arch; + 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_29K: + arch = bfd_arch_a29k; + 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 (abfd) + bfd *abfd; +{ + switch (bfd_get_arch (abfd)) + { + case bfd_arch_sparc: + case bfd_arch_a29k: + 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 boolean +NAME(aout,sparclynx_write_object_contents) (abfd) + 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; + case bfd_arch_a29k: + N_SET_MACHTYPE (*execp, M_29K); + 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 boolean +sparclynx_set_sizes (abfd) + 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 (*) PARAMS ((bfd *, struct sec *))) 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 (); +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" |