1 /* Solaris support needed only by C/C++ frontends.
2 Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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 2, 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 COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
21
22 #include "config.h"
23 #include "system.h"
24 #include "coretypes.h"
25 #include "tree.h"
26 #include "tm.h"
27 #include "tm_p.h"
28 #include "toplev.h"
29
30 #include "c-format.h"
31 #include "intl.h"
32
33 #include "cpplib.h"
34 #include "c-pragma.h"
35 #include "c-common.h"
36
37 /* cmn_err only accepts "l" and "ll". */
38 static const format_length_info cmn_err_length_specs[] =
39 {
40 { "l", FMT_LEN_l, STD_C89, "ll", FMT_LEN_ll, STD_C89 },
41 { NULL, 0, 0, NULL, 0, 0 }
42 };
43
44 static const format_flag_spec cmn_err_flag_specs[] =
45 {
46 { 'w', 0, 0, N_("field width"), N_("field width in printf format"), STD_C89 },
47 { 'L', 0, 0, N_("length modifier"), N_("length modifier in printf format"), STD_C89 },
48 { 0, 0, 0, NULL, NULL, 0 }
49 };
50
51
52 static const format_flag_pair cmn_err_flag_pairs[] =
53 {
54 { 0, 0, 0, 0 }
55 };
56
57 static const format_char_info bitfield_string_type =
58 { "b", 1, STD_C89, { T89_C, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "", "cR", NULL };
59
60 static const format_char_info cmn_err_char_table[] =
61 {
62 /* C89 conversion specifiers. */
63 { "dD", 0, STD_C89, { T89_I, BADLEN, BADLEN, T89_L, T9L_LL, BADLEN, BADLEN, BADLEN, BADLEN }, "w", "", NULL },
64 { "oOxX",0, STD_C89, { T89_UI, BADLEN, BADLEN, T89_UL, T9L_ULL, BADLEN, BADLEN, BADLEN, BADLEN }, "w", "", NULL },
65 { "u", 0, STD_C89, { T89_UI, BADLEN, BADLEN, T89_UL, T9L_ULL, BADLEN, BADLEN, BADLEN, BADLEN }, "w", "", NULL },
66 { "c", 0, STD_C89, { T89_C, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "w", "", NULL },
67 { "p", 1, STD_C89, { T89_V, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "w", "c", NULL },
68 { "s", 1, STD_C89, { T89_C, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "w", "cR", NULL },
69 { "b", 0, STD_C89, { T89_I, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN, BADLEN }, "w", "", &bitfield_string_type },
70 { NULL, 0, 0, NOLENGTHS, NULL, NULL, NULL }
71 };
72
73 const format_kind_info solaris_format_types[] = {
74 { "cmn_err", cmn_err_length_specs, cmn_err_char_table, "", NULL,
75 cmn_err_flag_specs, cmn_err_flag_pairs,
76 FMT_FLAG_ARG_CONVERT|FMT_FLAG_EMPTY_PREC_OK,
77 'w', 0, 0, 0, 'L',
78 &integer_type_node, &integer_type_node
79 }
80 };
81
82 /* Handle #pragma align ALIGNMENT (VAR [, VAR]...) */
83
84 static void
solaris_pragma_align(cpp_reader * pfile ATTRIBUTE_UNUSED)85 solaris_pragma_align (cpp_reader *pfile ATTRIBUTE_UNUSED)
86 {
87 tree t, x;
88 enum cpp_ttype ttype;
89 HOST_WIDE_INT low;
90
91 if (c_lex (&x) != CPP_NUMBER
92 || c_lex (&t) != CPP_OPEN_PAREN)
93 {
94 warning (0, "malformed %<#pragma align%>, ignoring");
95 return;
96 }
97
98 low = TREE_INT_CST_LOW (x);
99 if (TREE_INT_CST_HIGH (x) != 0
100 || (low != 1 && low != 2 && low != 4 && low != 8 && low != 16
101 && low != 32 && low != 64 && low != 128))
102 {
103 warning (0, "invalid alignment for %<#pragma align%>, ignoring");
104 return;
105 }
106
107 ttype = c_lex (&t);
108 if (ttype != CPP_NAME)
109 {
110 warning (0, "malformed %<#pragma align%>, ignoring");
111 return;
112 }
113
114 while (1)
115 {
116 tree decl = identifier_global_value (t);
117 if (decl && DECL_P (decl))
118 warning (0, "%<#pragma align%> must appear before the declaration of "
119 "%D, ignoring", decl);
120 else
121 solaris_pending_aligns = tree_cons (t, build_tree_list (NULL, x),
122 solaris_pending_aligns);
123
124 ttype = c_lex (&t);
125 if (ttype == CPP_COMMA)
126 {
127 ttype = c_lex (&t);
128 if (ttype != CPP_NAME)
129 {
130 warning (0, "malformed %<#pragma align%>");
131 return;
132 }
133 }
134 else if (ttype == CPP_CLOSE_PAREN)
135 {
136 if (c_lex (&t) != CPP_EOF)
137 warning (0, "junk at end of %<#pragma align%>");
138 return;
139 }
140 else
141 {
142 warning (0, "malformed %<#pragma align%>");
143 return;
144 }
145 }
146 }
147
148 /* Handle #pragma init (function [, function]...) */
149
150 static void
solaris_pragma_init(cpp_reader * pfile ATTRIBUTE_UNUSED)151 solaris_pragma_init (cpp_reader *pfile ATTRIBUTE_UNUSED)
152 {
153 tree t;
154 enum cpp_ttype ttype;
155
156 if (c_lex (&t) != CPP_OPEN_PAREN)
157 {
158 warning (0, "malformed %<#pragma init%>, ignoring");
159 return;
160 }
161
162 ttype = c_lex (&t);
163 if (ttype != CPP_NAME)
164 {
165 warning (0, "malformed %<#pragma init%>, ignoring");
166 return;
167 }
168
169 while (1)
170 {
171 tree decl = identifier_global_value (t);
172 if (decl && DECL_P (decl))
173 {
174 tree init_list = build_tree_list (get_identifier ("init"),
175 NULL);
176 tree attrs = tree_cons (get_identifier ("used"), NULL, init_list);
177 decl_attributes (&decl, attrs, 0);
178 }
179 else
180 solaris_pending_inits = tree_cons (t, NULL, solaris_pending_inits);
181
182 ttype = c_lex (&t);
183 if (ttype == CPP_COMMA)
184 {
185 ttype = c_lex (&t);
186 if (ttype != CPP_NAME)
187 {
188 warning (0, "malformed %<#pragma init%>");
189 return;
190 }
191 }
192 else if (ttype == CPP_CLOSE_PAREN)
193 {
194 if (c_lex (&t) != CPP_EOF)
195 warning (0, "junk at end of %<#pragma init%>");
196 return;
197 }
198 else
199 {
200 warning (0, "malformed %<#pragma init%>");
201 return;
202 }
203 }
204 }
205
206 /* Handle #pragma fini (function [, function]...) */
207
208 static void
solaris_pragma_fini(cpp_reader * pfile ATTRIBUTE_UNUSED)209 solaris_pragma_fini (cpp_reader *pfile ATTRIBUTE_UNUSED)
210 {
211 tree t;
212 enum cpp_ttype ttype;
213
214 if (c_lex (&t) != CPP_OPEN_PAREN)
215 {
216 warning (0, "malformed %<#pragma fini%>, ignoring");
217 return;
218 }
219
220 ttype = c_lex (&t);
221 if (ttype != CPP_NAME)
222 {
223 warning (0, "malformed %<#pragma fini%>, ignoring");
224 return;
225 }
226
227 while (1)
228 {
229 tree decl = identifier_global_value (t);
230 if (decl && DECL_P (decl))
231 {
232 tree fini_list = build_tree_list (get_identifier ("fini"),
233 NULL);
234 tree attrs = tree_cons (get_identifier ("used"), NULL, fini_list);
235 decl_attributes (&decl, attrs, 0);
236 }
237 else
238 solaris_pending_finis = tree_cons (t, NULL, solaris_pending_finis);
239
240 ttype = c_lex (&t);
241 if (ttype == CPP_COMMA)
242 {
243 ttype = c_lex (&t);
244 if (ttype != CPP_NAME)
245 {
246 warning (0, "malformed %<#pragma fini%>");
247 return;
248 }
249 }
250 else if (ttype == CPP_CLOSE_PAREN)
251 {
252 if (c_lex (&t) != CPP_EOF)
253 warning (0, "junk at end of %<#pragma fini%>");
254 return;
255 }
256 else
257 {
258 warning (0, "malformed %<#pragma fini%>");
259 return;
260 }
261 }
262 }
263
264 /* Register Solaris-specific #pragma directives. */
265
266 void
solaris_register_pragmas(void)267 solaris_register_pragmas (void)
268 {
269 c_register_pragma_with_expansion (0, "align", solaris_pragma_align);
270 c_register_pragma (0, "init", solaris_pragma_init);
271 c_register_pragma (0, "fini", solaris_pragma_fini);
272 }
273