1/* Pragma handling for GCC for Renesas / SuperH SH.
2   Copyright (C) 1993-2020 Free Software Foundation, Inc.
3   Contributed by Joern Rennecke <joern.rennecke@st.com>.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 3, or (at your option)
10any later version.
11
12GCC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING3.  If not see
19<http://www.gnu.org/licenses/>.  */
20
21#define IN_TARGET_CODE 1
22
23#include "config.h"
24#include "system.h"
25#include "coretypes.h"
26#include "target.h"
27#include "c-family/c-common.h"
28#include "memmodel.h"
29#include "tm_p.h"
30#include "stringpool.h"
31#include "attribs.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.  */
39static void
40sh_add_function_attribute (const char *attr)
41{
42  tree id = get_identifier (attr);
43
44  if (current_function_decl)
45    decl_attributes (&current_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
56void
57sh_pr_interrupt (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
58{
59  sh_add_function_attribute ("interrupt_handler");
60}
61
62void
63sh_pr_trapa (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
64{
65  sh_add_function_attribute ("trapa_handler");
66}
67
68void
69sh_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  */
78void
79sh_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    }
126  if (TARGET_FPU_ANY)
127    builtin_define ("__SH_FPU_ANY__");
128  if (TARGET_FPU_DOUBLE)
129    builtin_define ("__SH_FPU_DOUBLE__");
130  if (TARGET_HITACHI)
131    builtin_define ("__HITACHI__");
132  if (TARGET_FMOVD)
133    builtin_define ("__FMOVD_ENABLED__");
134  if (TARGET_FDPIC)
135    {
136      builtin_define ("__SH_FDPIC__");
137      builtin_define ("__FDPIC__");
138    }
139  builtin_define (TARGET_LITTLE_ENDIAN
140		  ? "__LITTLE_ENDIAN__" : "__BIG_ENDIAN__");
141
142  cpp_define_formatted (pfile, "__SH_ATOMIC_MODEL_%s__",
143			selected_atomic_model ().cdef_name);
144}
145