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709 |
jeremybenn |
/* Definitions of MCore target.
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Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2007, 2011
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Free Software Foundation, Inc.
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Contributed by Cygnus Solutions.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef __MCORE_ELF_H__
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#define __MCORE_ELF_H__
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/* Use DWARF2 debugging info. */
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#define DWARF2_DEBUGGING_INFO 1
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#undef PREFERRED_DEBUGGING_TYPE
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#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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#define MCORE_EXPORT_NAME(STREAM, NAME) \
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do \
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{ \
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fprintf (STREAM, "\t.section .exports\n"); \
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fprintf (STREAM, "\t.ascii \" -export:%s\"\n", \
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(* targetm.strip_name_encoding) (NAME)); \
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in_section = NULL; \
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} \
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while (0);
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/* Write the extra assembler code needed to declare a function properly.
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Some svr4 assemblers need to also have something extra said about the
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function's return value. We allow for that here. */
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#undef ASM_DECLARE_FUNCTION_NAME
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#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
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do \
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{ \
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if (mcore_dllexport_name_p (NAME)) \
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{ \
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MCORE_EXPORT_NAME (FILE, NAME); \
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switch_to_section (function_section (DECL)); \
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} \
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ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
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ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
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ASM_OUTPUT_LABEL (FILE, NAME); \
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} \
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while (0)
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/* Write the extra assembler code needed to declare an object properly. */
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#undef ASM_DECLARE_OBJECT_NAME
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#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
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do \
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{ \
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HOST_WIDE_INT size; \
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if (mcore_dllexport_name_p (NAME)) \
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{ \
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section *save_section = in_section; \
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MCORE_EXPORT_NAME (FILE, NAME); \
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switch_to_section (save_section); \
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} \
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ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
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size_directive_output = 0; \
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if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
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{ \
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size_directive_output = 1; \
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size = int_size_in_bytes (TREE_TYPE (DECL)); \
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ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
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} \
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ASM_OUTPUT_LABEL(FILE, NAME); \
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} \
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while (0)
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/* Output the size directive for a decl in rest_of_decl_compilation
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in the case where we did not do so before the initializer.
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Once we find the error_mark_node, we know that the value of
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size_directive_output was set
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by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
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#undef ASM_FINISH_DECLARE_OBJECT
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#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
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do \
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{ \
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const char * name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
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HOST_WIDE_INT size; \
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if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
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&& ! AT_END && TOP_LEVEL \
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&& DECL_INITIAL (DECL) == error_mark_node \
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&& !size_directive_output) \
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{ \
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size_directive_output = 1; \
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size = int_size_in_bytes (TREE_TYPE (DECL)); \
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ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
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} \
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} \
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while (0)
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s"
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/* Include the OS stub library, so that the code can be simulated.
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This is not the right way to do this. Ideally this kind of thing
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should be done in the linker script - but I have not worked out how
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to specify the location of a linker script in a gcc command line yet. */
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC "%{!mno-lsim:-lsim} crtend.o%s crtn.o%s"
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/* The subroutine calls in the .init and .fini sections create literal
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pools which must be jumped around.... */
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#define FORCE_CODE_SECTION_ALIGN asm ("br 1f ; .literals ; 1:");
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#undef CTORS_SECTION_ASM_OP
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#define CTORS_SECTION_ASM_OP "\t.section\t.ctors,\"aw\""
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#undef DTORS_SECTION_ASM_OP
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#define DTORS_SECTION_ASM_OP "\t.section\t.dtors,\"aw\""
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#endif /* __MCORE_ELF_H__ */
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