1 /* General Solaris system support.
2 Copyright (C) 2004, 2005 , 2007, 2010 Free Software Foundation, Inc.
3 Contributed by CodeSourcery, LLC.
5 This file is part of GCC.
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)
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.
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/>. */
23 #include "coretypes.h"
32 tree solaris_pending_aligns
, solaris_pending_inits
, solaris_pending_finis
;
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. */
41 solaris_insert_attributes (tree decl
, tree
*attributes
)
45 if (solaris_pending_aligns
!= NULL
&& TREE_CODE (decl
) == VAR_DECL
)
46 for (x
= &solaris_pending_aligns
; *x
; x
= &TREE_CHAIN (*x
))
48 tree name
= TREE_PURPOSE (*x
);
49 tree value
= TREE_VALUE (*x
);
50 if (DECL_NAME (decl
) == name
)
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
);
57 *attributes
= tree_cons (get_identifier ("aligned"), value
,
59 next
= TREE_CHAIN (*x
);
66 if (solaris_pending_inits
!= NULL
&& TREE_CODE (decl
) == FUNCTION_DECL
)
67 for (x
= &solaris_pending_inits
; *x
; x
= &TREE_CHAIN (*x
))
69 tree name
= TREE_PURPOSE (*x
);
70 if (DECL_NAME (decl
) == name
)
72 *attributes
= tree_cons (get_identifier ("init"), NULL
,
75 DECL_PRESERVE_P (decl
) = 1;
76 next
= TREE_CHAIN (*x
);
83 if (solaris_pending_finis
!= NULL
&& TREE_CODE (decl
) == FUNCTION_DECL
)
84 for (x
= &solaris_pending_finis
; *x
; x
= &TREE_CHAIN (*x
))
86 tree name
= TREE_PURPOSE (*x
);
87 if (DECL_NAME (decl
) == name
)
89 *attributes
= tree_cons (get_identifier ("fini"), NULL
,
92 DECL_PRESERVE_P (decl
) = 1;
93 next
= TREE_CHAIN (*x
);
101 /* Output initializer or finalizer entries for DECL to FILE. */
104 solaris_output_init_fini (FILE *file
, tree decl
)
106 if (lookup_attribute ("init", DECL_ATTRIBUTES (decl
)))
108 fprintf (file
, PUSHSECTION_FORMAT
, ".init");
109 ASM_OUTPUT_CALL (file
, decl
);
110 fprintf (file
, "\t.popsection\n");
113 if (lookup_attribute ("fini", DECL_ATTRIBUTES (decl
)))
115 fprintf (file
, PUSHSECTION_FORMAT
, ".fini");
116 ASM_OUTPUT_CALL (file
, decl
);
117 fprintf (file
, "\t.popsection\n");
121 /* Emit an assembler directive to set symbol for DECL visibility to
122 the visibility type VIS, which must not be VISIBILITY_DEFAULT. */
125 solaris_assemble_visibility (tree decl ATTRIBUTE_UNUSED
,
126 int vis ATTRIBUTE_UNUSED
)
128 #ifdef HAVE_GAS_HIDDEN
129 /* Sun as uses .symbolic for STV_PROTECTED. STV_INTERNAL is marked as
130 `currently reserved', but the linker treats it like STV_HIDDEN. Sun
131 Studio 12.1 cc emits .hidden instead.
133 There are 3 Sun extensions GCC doesn't yet know about: STV_EXPORTED,
134 STV_SINGLETON, and STV_ELIMINATE.
136 See Linker and Libraries Guide, Ch. 2, Link-Editor, Defining
137 Additional Symbols with a mapfile,
138 http://docs.sun.com/app/docs/doc/819-0690/gdzmc?a=view
139 and Ch. 7, Object-File Format, Symbol Table Section,
140 http://docs.sun.com/app/docs/doc/819-0690/chapter6-79797?a=view */
142 static const char * const visibility_types
[] = {
143 NULL
, "symbolic", "hidden", "hidden"
146 const char *name
, *type
;
148 name
= IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl
));
149 type
= visibility_types
[vis
];
151 fprintf (asm_out_file
, "\t.%s\t", type
);
152 assemble_name (asm_out_file
, name
);
153 fprintf (asm_out_file
, "\n");
155 warning (OPT_Wattributes
, "visibility attribute not supported "
156 "in this configuration; ignored");