1/* BFD support for Sparc binaries under LynxOS. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000, 3 2001, 2002, 2003, 2005, 2007 Free Software Foundation, Inc. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 23/* Do not "beautify" the CONCAT* macro args. Traditional C will not 24 remove whitespace added here, and thus will fail to concatenate 25 the tokens. */ 26#define MY(OP) CONCAT2 (sparclynx_aout_,OP) 27#define TARGETNAME "a.out-sparc-lynx" 28 29#include "sysdep.h" 30#include "bfd.h" 31#include "libbfd.h" 32 33#include "aout/sun4.h" 34#include "libaout.h" /* BFD a.out internal data structures */ 35 36#include "aout/aout64.h" 37#include "aout/stab_gnu.h" 38#include "aout/ar.h" 39 40void NAME (lynx,set_arch_mach) PARAMS ((bfd *, unsigned long)); 41static void choose_reloc_size PARAMS ((bfd *)); 42static bfd_boolean NAME (aout,sparclynx_write_object_contents) PARAMS ((bfd *)); 43 44/* This is needed to reject a NewsOS file, e.g. in 45 gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com> 46 I needed to add M_UNKNOWN to recognize a 68000 object, so this will 47 probably no longer reject a NewsOS object. <ian@cygnus.com>. */ 48#define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \ 49 || (mtype) == M_68010 \ 50 || (mtype) == M_68020 \ 51 || (mtype) == M_SPARC) 52 53/* The file @code{aoutf1.h} contains the code for BFD's 54 a.out back end. Control over the generated back end is given by these 55 two preprocessor names: 56 @table @code 57 @item ARCH_SIZE 58 This value should be either 32 or 64, depending upon the size of an 59 int in the target format. It changes the sizes of the structs which 60 perform the memory/disk mapping of structures. 61 62 The 64 bit backend may only be used if the host compiler supports 64 63 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}. 64 With this name defined, @emph{all} bfd operations are performed with 64bit 65 arithmetic, not just those to a 64bit target. 66 67 @item TARGETNAME 68 The name put into the target vector. 69 @item 70 @end table */ 71 72void 73NAME(lynx,set_arch_mach) (abfd, machtype) 74 bfd *abfd; 75 unsigned long machtype; 76{ 77 /* Determine the architecture and machine type of the object file. */ 78 enum bfd_architecture arch; 79 unsigned long machine; 80 81 switch (machtype) 82 { 83 case M_UNKNOWN: 84 /* Some Sun3s make magic numbers without cpu types in them, so 85 we'll default to the 68000. */ 86 arch = bfd_arch_m68k; 87 machine = bfd_mach_m68000; 88 break; 89 90 case M_68010: 91 case M_HP200: 92 arch = bfd_arch_m68k; 93 machine = bfd_mach_m68010; 94 break; 95 96 case M_68020: 97 case M_HP300: 98 arch = bfd_arch_m68k; 99 machine = bfd_mach_m68020; 100 break; 101 102 case M_SPARC: 103 arch = bfd_arch_sparc; 104 machine = 0; 105 break; 106 107 case M_386: 108 case M_386_DYNIX: 109 arch = bfd_arch_i386; 110 machine = 0; 111 break; 112 113 case M_HPUX: 114 arch = bfd_arch_m68k; 115 machine = 0; 116 break; 117 118 default: 119 arch = bfd_arch_obscure; 120 machine = 0; 121 break; 122 } 123 bfd_set_arch_mach (abfd, arch, machine); 124} 125 126#define SET_ARCH_MACH(ABFD, EXEC) \ 127 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \ 128 choose_reloc_size(ABFD); 129 130/* Determine the size of a relocation entry, based on the architecture. */ 131 132static void 133choose_reloc_size (abfd) 134 bfd *abfd; 135{ 136 switch (bfd_get_arch (abfd)) 137 { 138 case bfd_arch_sparc: 139 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; 140 break; 141 default: 142 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; 143 break; 144 } 145} 146 147/* Write an object file in LynxOS format. 148 Section contents have already been written. We write the 149 file header, symbols, and relocation. */ 150 151static bfd_boolean 152NAME(aout,sparclynx_write_object_contents) (abfd) 153 bfd *abfd; 154{ 155 struct external_exec exec_bytes; 156 struct internal_exec *execp = exec_hdr (abfd); 157 158 /* Magic number, maestro, please! */ 159 switch (bfd_get_arch (abfd)) 160 { 161 case bfd_arch_m68k: 162 switch (bfd_get_mach (abfd)) 163 { 164 case bfd_mach_m68010: 165 N_SET_MACHTYPE (*execp, M_68010); 166 break; 167 default: 168 case bfd_mach_m68020: 169 N_SET_MACHTYPE (*execp, M_68020); 170 break; 171 } 172 break; 173 case bfd_arch_sparc: 174 N_SET_MACHTYPE (*execp, M_SPARC); 175 break; 176 case bfd_arch_i386: 177 N_SET_MACHTYPE (*execp, M_386); 178 break; 179 default: 180 N_SET_MACHTYPE (*execp, M_UNKNOWN); 181 } 182 183 choose_reloc_size (abfd); 184 185 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags); 186 187 WRITE_HEADERS (abfd, execp); 188 189 return TRUE; 190} 191 192#define MY_set_sizes sparclynx_set_sizes 193static bfd_boolean sparclynx_set_sizes PARAMS ((bfd *)); 194 195static bfd_boolean 196sparclynx_set_sizes (abfd) 197 bfd *abfd; 198{ 199 switch (bfd_get_arch (abfd)) 200 { 201 default: 202 return FALSE; 203 case bfd_arch_sparc: 204 adata (abfd).page_size = 0x2000; 205 adata (abfd).segment_size = 0x2000; 206 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; 207 return TRUE; 208 case bfd_arch_m68k: 209 adata (abfd).page_size = 0x2000; 210 adata (abfd).segment_size = 0x20000; 211 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; 212 return TRUE; 213 } 214} 215 216static const struct aout_backend_data sparclynx_aout_backend = 217 { 218 0, 1, 0, 1, 0, sparclynx_set_sizes, 0, 219 0, /* add_dynamic_symbols */ 220 0, /* add_one_symbol */ 221 0, /* link_dynamic_object */ 222 0, /* write_dynamic_symbol */ 223 0, /* check_dynamic_reloc */ 224 0 /* finish_dynamic_link */ 225 }; 226 227 228#define MY_bfd_debug_info_start bfd_void 229#define MY_bfd_debug_info_end bfd_void 230#define MY_bfd_debug_info_accumulate \ 231 (void (*) PARAMS ((bfd *, struct bfd_section *))) bfd_void 232 233#define MY_write_object_contents NAME(aout,sparclynx_write_object_contents) 234#define MY_backend_data &sparclynx_aout_backend 235 236#define TARGET_IS_BIG_ENDIAN_P 237 238#ifdef LYNX_CORE 239 240char * lynx_core_file_failing_command (); 241int lynx_core_file_failing_signal (); 242bfd_boolean lynx_core_file_matches_executable_p (); 243const bfd_target * lynx_core_file_p (); 244 245#define MY_core_file_failing_command lynx_core_file_failing_command 246#define MY_core_file_failing_signal lynx_core_file_failing_signal 247#define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p 248#define MY_core_file_p lynx_core_file_p 249 250#endif /* LYNX_CORE */ 251 252#include "aout-target.h" 253