diff options
Diffstat (limited to 'gcc-4.9/gcc/config/mcore/mcore-elf.h')
| -rw-r--r-- | gcc-4.9/gcc/config/mcore/mcore-elf.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/mcore/mcore-elf.h b/gcc-4.9/gcc/config/mcore/mcore-elf.h new file mode 100644 index 000000000..bf48d6451 --- /dev/null +++ b/gcc-4.9/gcc/config/mcore/mcore-elf.h @@ -0,0 +1,125 @@ +/* Definitions of MCore target. + Copyright (C) 1998-2014 Free Software Foundation, Inc. + Contributed by Cygnus Solutions. + +This file is part of GCC. + +GCC 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 3, or (at your option) +any later version. + +GCC 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 GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#ifndef __MCORE_ELF_H__ +#define __MCORE_ELF_H__ + +/* Use DWARF2 debugging info. */ +#define DWARF2_DEBUGGING_INFO 1 + +#undef PREFERRED_DEBUGGING_TYPE +#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG + +#define MCORE_EXPORT_NAME(STREAM, NAME) \ + do \ + { \ + fprintf (STREAM, "\t.section .exports\n"); \ + fprintf (STREAM, "\t.ascii \" -export:%s\"\n", \ + (* targetm.strip_name_encoding) (NAME)); \ + in_section = NULL; \ + } \ + while (0); + +/* Write the extra assembler code needed to declare a function properly. + Some svr4 assemblers need to also have something extra said about the + function's return value. We allow for that here. */ +#undef ASM_DECLARE_FUNCTION_NAME +#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ + do \ + { \ + if (mcore_dllexport_name_p (NAME)) \ + { \ + MCORE_EXPORT_NAME (FILE, NAME); \ + switch_to_section (function_section (DECL)); \ + } \ + ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \ + ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ + ASM_OUTPUT_LABEL (FILE, NAME); \ + } \ + while (0) + +/* Write the extra assembler code needed to declare an object properly. */ +#undef ASM_DECLARE_OBJECT_NAME +#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ + do \ + { \ + HOST_WIDE_INT size; \ + if (mcore_dllexport_name_p (NAME)) \ + { \ + section *save_section = in_section; \ + MCORE_EXPORT_NAME (FILE, NAME); \ + switch_to_section (save_section); \ + } \ + ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ + size_directive_output = 0; \ + if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \ + { \ + size_directive_output = 1; \ + size = int_size_in_bytes (TREE_TYPE (DECL)); \ + ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \ + } \ + ASM_OUTPUT_LABEL(FILE, NAME); \ + } \ + while (0) + +/* Output the size directive for a decl in rest_of_decl_compilation + in the case where we did not do so before the initializer. + Once we find the error_mark_node, we know that the value of + size_directive_output was set + by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */ +#undef ASM_FINISH_DECLARE_OBJECT +#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \ + do \ + { \ + const char * name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ + HOST_WIDE_INT size; \ + if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \ + && ! AT_END && TOP_LEVEL \ + && DECL_INITIAL (DECL) == error_mark_node \ + && !size_directive_output) \ + { \ + size_directive_output = 1; \ + size = int_size_in_bytes (TREE_TYPE (DECL)); \ + ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \ + } \ + } \ + while (0) + + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s" + +/* Include the OS stub library, so that the code can be simulated. + This is not the right way to do this. Ideally this kind of thing + should be done in the linker script - but I have not worked out how + to specify the location of a linker script in a gcc command line yet. */ +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "%{!mno-lsim:-lsim} crtend.o%s crtn.o%s" + +/* The subroutine calls in the .init and .fini sections create literal + pools which must be jumped around.... */ +#define FORCE_CODE_SECTION_ALIGN asm ("br 1f ; .literals ; 1:"); + +#undef CTORS_SECTION_ASM_OP +#define CTORS_SECTION_ASM_OP "\t.section\t.ctors,\"aw\"" +#undef DTORS_SECTION_ASM_OP +#define DTORS_SECTION_ASM_OP "\t.section\t.dtors,\"aw\"" + +#endif /* __MCORE_ELF_H__ */ |