Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/sol2.c @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | a06113de4d67 |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* General Solaris system support. |
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2 Copyright (C) 2004, 2005 , 2007, 2010 Free Software Foundation, Inc. |
| 0 | 3 Contributed by CodeSourcery, LLC. |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify | |
| 8 it under the terms of the GNU General Public License as published by | |
| 9 the Free Software Foundation; either version 3, or (at your option) | |
| 10 any later version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, | |
| 13 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 GNU General Public License for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 #include "config.h" | |
| 22 #include "system.h" | |
| 23 #include "coretypes.h" | |
| 24 #include "tree.h" | |
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25 #include "output.h" |
| 0 | 26 #include "tm.h" |
| 27 #include "rtl.h" | |
| 28 #include "tm_p.h" | |
| 29 #include "toplev.h" | |
| 30 #include "ggc.h" | |
| 31 | |
| 32 tree solaris_pending_aligns, solaris_pending_inits, solaris_pending_finis; | |
| 33 | |
| 34 /* Attach any pending attributes for DECL to the list in *ATTRIBUTES. | |
| 35 Pending attributes come from #pragma or _Pragma, so this code is | |
| 36 only useful in the C family front ends, but it is included in | |
| 37 all languages to avoid changing the target machine initializer | |
| 38 depending on the language. */ | |
| 39 | |
| 40 void | |
| 41 solaris_insert_attributes (tree decl, tree *attributes) | |
| 42 { | |
| 43 tree *x, next; | |
| 44 | |
| 45 if (solaris_pending_aligns != NULL && TREE_CODE (decl) == VAR_DECL) | |
| 46 for (x = &solaris_pending_aligns; *x; x = &TREE_CHAIN (*x)) | |
| 47 { | |
| 48 tree name = TREE_PURPOSE (*x); | |
| 49 tree value = TREE_VALUE (*x); | |
| 50 if (DECL_NAME (decl) == name) | |
| 51 { | |
| 52 if (lookup_attribute ("aligned", DECL_ATTRIBUTES (decl)) | |
| 53 || lookup_attribute ("aligned", *attributes)) | |
| 54 warning (0, "ignoring %<#pragma align%> for explicitly " | |
| 55 "aligned %q+D", decl); | |
| 56 else | |
| 57 *attributes = tree_cons (get_identifier ("aligned"), value, | |
| 58 *attributes); | |
| 59 next = TREE_CHAIN (*x); | |
| 60 ggc_free (*x); | |
| 61 *x = next; | |
| 62 break; | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 if (solaris_pending_inits != NULL && TREE_CODE (decl) == FUNCTION_DECL) | |
| 67 for (x = &solaris_pending_inits; *x; x = &TREE_CHAIN (*x)) | |
| 68 { | |
| 69 tree name = TREE_PURPOSE (*x); | |
| 70 if (DECL_NAME (decl) == name) | |
| 71 { | |
| 72 *attributes = tree_cons (get_identifier ("init"), NULL, | |
| 73 *attributes); | |
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74 TREE_USED (decl) = 1; |
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75 DECL_PRESERVE_P (decl) = 1; |
| 0 | 76 next = TREE_CHAIN (*x); |
| 77 ggc_free (*x); | |
| 78 *x = next; | |
| 79 break; | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 if (solaris_pending_finis != NULL && TREE_CODE (decl) == FUNCTION_DECL) | |
| 84 for (x = &solaris_pending_finis; *x; x = &TREE_CHAIN (*x)) | |
| 85 { | |
| 86 tree name = TREE_PURPOSE (*x); | |
| 87 if (DECL_NAME (decl) == name) | |
| 88 { | |
| 89 *attributes = tree_cons (get_identifier ("fini"), NULL, | |
| 90 *attributes); | |
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91 TREE_USED (decl) = 1; |
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92 DECL_PRESERVE_P (decl) = 1; |
| 0 | 93 next = TREE_CHAIN (*x); |
| 94 ggc_free (*x); | |
| 95 *x = next; | |
| 96 break; | |
| 97 } | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 /* Output initializer or finalizer entries for DECL to FILE. */ | |
| 102 | |
| 103 void | |
| 104 solaris_output_init_fini (FILE *file, tree decl) | |
| 105 { | |
| 106 if (lookup_attribute ("init", DECL_ATTRIBUTES (decl))) | |
| 107 { | |
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108 fprintf (file, PUSHSECTION_FORMAT, ".init"); |
| 0 | 109 ASM_OUTPUT_CALL (file, decl); |
| 110 fprintf (file, "\t.popsection\n"); | |
| 111 } | |
| 112 | |
| 113 if (lookup_attribute ("fini", DECL_ATTRIBUTES (decl))) | |
| 114 { | |
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115 fprintf (file, PUSHSECTION_FORMAT, ".fini"); |
| 0 | 116 ASM_OUTPUT_CALL (file, decl); |
| 117 fprintf (file, "\t.popsection\n"); | |
| 118 } | |
| 119 } | |
| 120 | |
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121 /* Emit an assembler directive to set symbol for DECL visibility to |
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122 the visibility type VIS, which must not be VISIBILITY_DEFAULT. */ |
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123 |
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124 void |
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125 solaris_assemble_visibility (tree decl ATTRIBUTE_UNUSED, |
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126 int vis ATTRIBUTE_UNUSED) |
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127 { |
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128 #ifdef HAVE_GAS_HIDDEN |
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129 /* Sun as uses .symbolic for STV_PROTECTED. STV_INTERNAL is marked as |
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130 `currently reserved', but the linker treats it like STV_HIDDEN. Sun |
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131 Studio 12.1 cc emits .hidden instead. |
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132 |
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133 There are 3 Sun extensions GCC doesn't yet know about: STV_EXPORTED, |
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134 STV_SINGLETON, and STV_ELIMINATE. |
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135 |
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136 See Linker and Libraries Guide, Ch. 2, Link-Editor, Defining |
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137 Additional Symbols with a mapfile, |
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138 http://docs.sun.com/app/docs/doc/819-0690/gdzmc?a=view |
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139 and Ch. 7, Object-File Format, Symbol Table Section, |
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140 http://docs.sun.com/app/docs/doc/819-0690/chapter6-79797?a=view */ |
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141 |
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142 static const char * const visibility_types[] = { |
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143 NULL, "symbolic", "hidden", "hidden" |
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144 }; |
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145 |
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146 const char *name, *type; |
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147 |
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148 name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); |
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149 type = visibility_types[vis]; |
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150 |
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151 fprintf (asm_out_file, "\t.%s\t", type); |
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152 assemble_name (asm_out_file, name); |
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153 fprintf (asm_out_file, "\n"); |
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154 #else |
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155 warning (OPT_Wattributes, "visibility attribute not supported " |
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156 "in this configuration; ignored"); |
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157 #endif |
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158 } |