1 /* Pragma handling for GCC for Renesas / SuperH SH.
2 Copyright (C) 1993-2014 Free Software Foundation, Inc.
3 Contributed by Joern Rennecke <joern.rennecke@st.com>.
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 "tm.h"
25 #include "tree.h"
26 #include "stringpool.h"
27 #include "attribs.h"
28 #include "tm_p.h"
29 #include "cpplib.h"
30 #include "c-family/c-common.h"
31 #include "target.h"
32
33 /* Handle machine specific pragmas to be semi-compatible with Renesas
34 compiler. */
35
36 /* Add ATTR to the attributes of the current function. If there is no
37 such function, save it to be added to the attributes of the next
38 function. */
39 static void
sh_add_function_attribute(const char * attr)40 sh_add_function_attribute (const char *attr)
41 {
42 tree id = get_identifier (attr);
43
44 if (current_function_decl)
45 decl_attributes (¤t_function_decl,
46 tree_cons (id, NULL_TREE, NULL_TREE), 0);
47 else
48 {
49 *sh_deferred_function_attributes_tail
50 = tree_cons (id, NULL_TREE, *sh_deferred_function_attributes_tail);
51 sh_deferred_function_attributes_tail
52 = &TREE_CHAIN (*sh_deferred_function_attributes_tail);
53 }
54 }
55
56 void
sh_pr_interrupt(struct cpp_reader * pfile ATTRIBUTE_UNUSED)57 sh_pr_interrupt (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
58 {
59 sh_add_function_attribute ("interrupt_handler");
60 }
61
62 void
sh_pr_trapa(struct cpp_reader * pfile ATTRIBUTE_UNUSED)63 sh_pr_trapa (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
64 {
65 sh_add_function_attribute ("trapa_handler");
66 }
67
68 void
sh_pr_nosave_low_regs(struct cpp_reader * pfile ATTRIBUTE_UNUSED)69 sh_pr_nosave_low_regs (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
70 {
71 sh_add_function_attribute ("nosave_low_regs");
72 }
73
74 #define builtin_define(TXT) cpp_define (pfile, TXT)
75 #define builtin_assert(TXT) cpp_assert (pfile, TXT)
76
77 /* Implement the TARGET_CPU_CPP_BUILTINS macro */
78 void
sh_cpu_cpp_builtins(cpp_reader * pfile)79 sh_cpu_cpp_builtins (cpp_reader* pfile)
80 {
81 builtin_define ("__sh__");
82 builtin_assert ("cpu=sh");
83 builtin_assert ("machine=sh");
84 switch ((int) sh_cpu)
85 {
86 case PROCESSOR_SH1:
87 builtin_define ("__sh1__");
88 builtin_define ("__SH1__");
89 break;
90 case PROCESSOR_SH2:
91 builtin_define ("__sh2__");
92 builtin_define ("__SH2__");
93 break;
94 case PROCESSOR_SH2E:
95 builtin_define ("__SH2E__");
96 break;
97 case PROCESSOR_SH2A:
98 builtin_define ("__SH2A__");
99 if (TARGET_SH2A_DOUBLE)
100 builtin_define (TARGET_FPU_SINGLE
101 ? "__SH2A_SINGLE__" : "__SH2A_DOUBLE__");
102 else
103 builtin_define (TARGET_FPU_ANY
104 ? "__SH2A_SINGLE_ONLY__" : "__SH2A_NOFPU__");
105 break;
106 case PROCESSOR_SH3:
107 builtin_define ("__sh3__");
108 builtin_define ("__SH3__");
109 if (TARGET_HARD_SH4)
110 builtin_define ("__SH4_NOFPU__");
111 break;
112 case PROCESSOR_SH3E:
113 builtin_define (TARGET_HARD_SH4 ? "__SH4_SINGLE_ONLY__" : "__SH3E__");
114 break;
115 case PROCESSOR_SH4:
116 builtin_define (TARGET_FPU_SINGLE ? "__SH4_SINGLE__" : "__SH4__");
117 break;
118 case PROCESSOR_SH4A: \
119 builtin_define ("__SH4A__");
120 builtin_define (TARGET_SH4
121 ? (TARGET_FPU_SINGLE ? "__SH4_SINGLE__" : "__SH4__")
122 : TARGET_FPU_ANY ? "__SH4_SINGLE_ONLY__"
123 : "__SH4_NOFPU__");
124 break;
125 case PROCESSOR_SH5:
126 {
127 builtin_define_with_value ("__SH5__",
128 TARGET_SHMEDIA64 ? "64" : "32", 0);
129 builtin_define_with_value ("__SHMEDIA__",
130 TARGET_SHMEDIA ? "1" : "0", 0);
131 if (! TARGET_FPU_DOUBLE)
132 builtin_define ("__SH4_NOFPU__");
133 }
134 }
135 if (TARGET_FPU_ANY)
136 builtin_define ("__SH_FPU_ANY__");
137 if (TARGET_FPU_DOUBLE)
138 builtin_define ("__SH_FPU_DOUBLE__");
139 if (TARGET_HITACHI)
140 builtin_define ("__HITACHI__");
141 if (TARGET_FMOVD)
142 builtin_define ("__FMOVD_ENABLED__");
143 builtin_define (TARGET_LITTLE_ENDIAN
144 ? "__LITTLE_ENDIAN__" : "__BIG_ENDIAN__");
145
146 cpp_define_formatted (pfile, "__SH_ATOMIC_MODEL_%s__",
147 selected_atomic_model ().cdef_name);
148 }
149