1 /* Definitions of MCore target.
2 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2007, 2011
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Solutions.
6 This file is part of GCC.
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 3, or (at your option)
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.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef __MCORE_ELF_H__
23 #define __MCORE_ELF_H__
25 /* Use DWARF2 debugging info. */
26 #define DWARF2_DEBUGGING_INFO 1
28 #undef PREFERRED_DEBUGGING_TYPE
29 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
31 #define MCORE_EXPORT_NAME(STREAM, NAME) \
34 fprintf (STREAM, "\t.section .exports\n"); \
35 fprintf (STREAM, "\t.ascii \" -export:%s\"\n", \
36 (* targetm.strip_name_encoding) (NAME)); \
41 /* Write the extra assembler code needed to declare a function properly.
42 Some svr4 assemblers need to also have something extra said about the
43 function's return value. We allow for that here. */
44 #undef ASM_DECLARE_FUNCTION_NAME
45 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
48 if (mcore_dllexport_name_p (NAME)) \
50 MCORE_EXPORT_NAME (FILE, NAME); \
51 switch_to_section (function_section (DECL)); \
53 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
54 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
55 ASM_OUTPUT_LABEL (FILE, NAME); \
59 /* Write the extra assembler code needed to declare an object properly. */
60 #undef ASM_DECLARE_OBJECT_NAME
61 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
65 if (mcore_dllexport_name_p (NAME)) \
67 section *save_section = in_section; \
68 MCORE_EXPORT_NAME (FILE, NAME); \
69 switch_to_section (save_section); \
71 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
72 size_directive_output = 0; \
73 if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
75 size_directive_output = 1; \
76 size = int_size_in_bytes (TREE_TYPE (DECL)); \
77 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
79 ASM_OUTPUT_LABEL(FILE, NAME); \
83 /* Output the size directive for a decl in rest_of_decl_compilation
84 in the case where we did not do so before the initializer.
85 Once we find the error_mark_node, we know that the value of
86 size_directive_output was set
87 by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
88 #undef ASM_FINISH_DECLARE_OBJECT
89 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
92 const char * name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
94 if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
95 && ! AT_END && TOP_LEVEL \
96 && DECL_INITIAL (DECL) == error_mark_node \
97 && !size_directive_output) \
99 size_directive_output = 1; \
100 size = int_size_in_bytes (TREE_TYPE (DECL)); \
101 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
107 #undef STARTFILE_SPEC
108 #define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s"
110 /* Include the OS stub library, so that the code can be simulated.
111 This is not the right way to do this. Ideally this kind of thing
112 should be done in the linker script - but I have not worked out how
113 to specify the location of a linker script in a gcc command line yet. */
115 #define ENDFILE_SPEC "%{!mno-lsim:-lsim} crtend.o%s crtn.o%s"
117 /* The subroutine calls in the .init and .fini sections create literal
118 pools which must be jumped around.... */
119 #define FORCE_CODE_SECTION_ALIGN asm ("br 1f ; .literals ; 1:");
121 #undef CTORS_SECTION_ASM_OP
122 #define CTORS_SECTION_ASM_OP "\t.section\t.ctors,\"aw\""
123 #undef DTORS_SECTION_ASM_OP
124 #define DTORS_SECTION_ASM_OP "\t.section\t.dtors,\"aw\""
126 #endif /* __MCORE_ELF_H__ */