1 /* Definitions of MCore target. 2 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 3 Free Software Foundation, Inc. 4 Contributed by Cygnus Solutions. 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any later version. 12 13 GCC is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING. If not, write to 20 the Free Software Foundation, 51 Franklin Street, Fifth Floor, 21 Boston, MA 02110-1301, USA. */ 22 23 #ifndef __MCORE_ELF_H__ 24 #define __MCORE_ELF_H__ 25 26 /* Run-time Target Specification. */ 27 #define TARGET_VERSION fputs (" (Motorola MCORE/elf)", stderr) 28 29 /* Use DWARF2 debugging info. */ 30 #define DWARF2_DEBUGGING_INFO 1 31 32 #undef PREFERRED_DEBUGGING_TYPE 33 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 34 35 #define MCORE_EXPORT_NAME(STREAM, NAME) \ 36 do \ 37 { \ 38 fprintf (STREAM, "\t.section .exports\n"); \ 39 fprintf (STREAM, "\t.ascii \" -export:%s\"\n", \ 40 (* targetm.strip_name_encoding) (NAME)); \ 41 in_section = NULL; \ 42 } \ 43 while (0); 44 45 /* Write the extra assembler code needed to declare a function properly. 46 Some svr4 assemblers need to also have something extra said about the 47 function's return value. We allow for that here. */ 48 #undef ASM_DECLARE_FUNCTION_NAME 49 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ 50 do \ 51 { \ 52 if (mcore_dllexport_name_p (NAME)) \ 53 { \ 54 MCORE_EXPORT_NAME (FILE, NAME); \ 55 switch_to_section (function_section (DECL)); \ 56 } \ 57 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \ 58 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ 59 ASM_OUTPUT_LABEL (FILE, NAME); \ 60 } \ 61 while (0) 62 63 /* Write the extra assembler code needed to declare an object properly. */ 64 #undef ASM_DECLARE_OBJECT_NAME 65 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ 66 do \ 67 { \ 68 HOST_WIDE_INT size; \ 69 if (mcore_dllexport_name_p (NAME)) \ 70 { \ 71 section *save_section = in_section; \ 72 MCORE_EXPORT_NAME (FILE, NAME); \ 73 switch_to_section (save_section); \ 74 } \ 75 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ 76 size_directive_output = 0; \ 77 if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \ 78 { \ 79 size_directive_output = 1; \ 80 size = int_size_in_bytes (TREE_TYPE (DECL)); \ 81 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \ 82 } \ 83 ASM_OUTPUT_LABEL(FILE, NAME); \ 84 } \ 85 while (0) 86 87 /* Output the size directive for a decl in rest_of_decl_compilation 88 in the case where we did not do so before the initializer. 89 Once we find the error_mark_node, we know that the value of 90 size_directive_output was set 91 by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */ 92 #undef ASM_FINISH_DECLARE_OBJECT 93 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \ 94 do \ 95 { \ 96 const char * name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ 97 HOST_WIDE_INT size; \ 98 if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \ 99 && ! AT_END && TOP_LEVEL \ 100 && DECL_INITIAL (DECL) == error_mark_node \ 101 && !size_directive_output) \ 102 { \ 103 size_directive_output = 1; \ 104 size = int_size_in_bytes (TREE_TYPE (DECL)); \ 105 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \ 106 } \ 107 } \ 108 while (0) 109 110 111 #undef STARTFILE_SPEC 112 #define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s" 113 114 /* Include the OS stub library, so that the code can be simulated. 115 This is not the right way to do this. Ideally this kind of thing 116 should be done in the linker script - but I have not worked out how 117 to specify the location of a linker script in a gcc command line yet. */ 118 #undef ENDFILE_SPEC 119 #define ENDFILE_SPEC "%{!mno-lsim:-lsim} crtend.o%s crtn.o%s" 120 121 /* The subroutine calls in the .init and .fini sections create literal 122 pools which must be jumped around.... */ 123 #define FORCE_CODE_SECTION_ALIGN asm ("br 1f ; .literals ; 1:"); 124 125 #undef CTORS_SECTION_ASM_OP 126 #define CTORS_SECTION_ASM_OP "\t.section\t.ctors,\"aw\"" 127 #undef DTORS_SECTION_ASM_OP 128 #define DTORS_SECTION_ASM_OP "\t.section\t.dtors,\"aw\"" 129 130 #endif /* __MCORE_ELF_H__ */ 131