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1 /* elf.h for Sunplus S+CORE processor
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2 Copyright (C) 2005, 2007 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published
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8 by the Free Software Foundation; either version 3, or (at your
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9 option) any later version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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14 License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #define OBJECT_FORMAT_ELF
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21
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22 /* Biggest alignment supported by the object file format of this machine. */
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23 #undef MAX_OFILE_ALIGNMENT
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24 #define MAX_OFILE_ALIGNMENT (32768 * 8)
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25
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26 /* Switch into a generic section. */
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27 #undef TARGET_ASM_NAMED_SECTION
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28 #define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
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29
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30 /* The following macro defines the format used to output the second
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31 operand of the .type assembler directive. */
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32 #define TYPE_OPERAND_FMT "@%s"
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33
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34 #undef TYPE_ASM_OP
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35 #define TYPE_ASM_OP "\t.type\t"
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36
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37 #undef SIZE_ASM_OP
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38 #define SIZE_ASM_OP "\t.size\t"
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39
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40 /* A c expression whose value is a string containing the
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41 assembler operation to identify the following data as
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42 uninitialized global data. */
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43 #ifndef BSS_SECTION_ASM_OP
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44 #define BSS_SECTION_ASM_OP "\t.section\t.bss"
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45 #endif
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46
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47 #ifndef ASM_OUTPUT_ALIGNED_BSS
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48 #define ASM_OUTPUT_ALIGNED_BSS asm_output_aligned_bss
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49 #endif
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50
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51 #define ASM_OUTPUT_DEF(FILE, LABEL1, LABEL2) \
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52 do { \
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53 fputc ('\t', FILE); \
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54 assemble_name (FILE, LABEL1); \
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55 fputs (" = ", FILE); \
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56 assemble_name (FILE, LABEL2); \
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57 fputc ('\n', FILE); \
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58 } while (0)
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59
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60
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61 /* This is how we tell the assembler that a symbol is weak. */
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62 #undef ASM_WEAKEN_LABEL
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63 #define ASM_WEAKEN_LABEL(FILE, NAME) ASM_OUTPUT_WEAK_ALIAS (FILE, NAME, 0)
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64
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65 #define ASM_OUTPUT_WEAK_ALIAS(FILE, NAME, VALUE) \
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66 do { \
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67 fputs ("\t.weak\t", FILE); \
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68 assemble_name (FILE, NAME); \
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69 if (VALUE) \
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70 { \
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71 fputc (' ', FILE); \
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72 assemble_name (FILE, VALUE); \
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73 } \
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74 fputc ('\n', FILE); \
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75 } while (0)
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76
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77 #define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
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78
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79 /* On elf, we *do* have support for the .init and .fini sections, and we
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80 can put stuff in there to be executed before and after `main'. We let
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81 crtstuff.c and other files know this by defining the following symbols.
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82 The definitions say how to change sections to the .init and .fini
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83 sections. This is the same for all known elf assemblers. */
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84 #undef INIT_SECTION_ASM_OP
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85 #define INIT_SECTION_ASM_OP "\t.section\t.init"
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86 #undef FINI_SECTION_ASM_OP
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87 #define FINI_SECTION_ASM_OP "\t.section\t.fini"
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88
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89 /* Don't set the target flags, this is done by the linker script */
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90 #undef LIB_SPEC
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91 #define LIB_SPEC ""
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92
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93 #undef STARTFILE_SPEC
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94 #define STARTFILE_SPEC "crti%O%s crtbegin%O%s"
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95
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96 #undef ENDFILE_SPEC
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97 #define ENDFILE_SPEC "crtend%O%s crtn%O%s"
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98
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99 /* We support #pragma. */
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100 #define HANDLE_SYSV_PRAGMA 1
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