xref: /netbsd-src/external/gpl3/gdb/dist/sim/ppc/gen-support.c (revision 96fc3e30a7c3f7bba53384bf41dad5f78306fac4)
1 /*  This file is part of the program psim.
2 
3     Copyright 1994, 1995, 2003 Andrew Cagney
4 
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9 
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13     GNU General Public License for more details.
14 
15     You should have received a copy of the GNU General Public License
16     along with this program; if not, write to the Free Software
17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 
19     */
20 
21 #include "misc.h"
22 #include "lf.h"
23 #include "table.h"
24 #include "filter.h"
25 
26 #include "ld-decode.h"
27 #include "ld-cache.h"
28 #include "ld-insn.h"
29 
30 #include "igen.h"
31 
32 #include "gen-semantics.h"
33 #include "gen-support.h"
34 
35 static void
36 print_support_function_name(lf *file,
37 			    table_entry *function,
38 			    int is_function_definition)
39 {
40   if (it_is("internal", function->fields[insn_flags])) {
41     lf_print_function_type(file, SEMANTIC_FUNCTION_TYPE, "PSIM_INLINE_SUPPORT",
42 			   (is_function_definition ? "\n" : " "));
43     print_function_name(file,
44 			function->fields[function_name],
45 			NULL,
46 			function_name_prefix_semantics);
47     lf_printf(file, "\n(%s)", SEMANTIC_FUNCTION_FORMAL);
48     if (!is_function_definition)
49       lf_printf(file, ";");
50     lf_printf(file, "\n");
51   }
52   else {
53     lf_print_function_type(file,
54 			   function->fields[function_type],
55 			   "PSIM_INLINE_SUPPORT",
56 			   (is_function_definition ? "\n" : " "));
57     lf_printf(file, "%s\n(%s)%s",
58 	      function->fields[function_name],
59 	      function->fields[function_param],
60 	      (is_function_definition ? "\n" : ";\n"));
61   }
62 }
63 
64 
65 static void
66 support_h_function(insn_table *entry,
67 		   lf *file,
68 		   void *data,
69 		   table_entry *function)
70 {
71   ASSERT(function->fields[function_type] != NULL);
72   ASSERT(function->fields[function_param] != NULL);
73   print_support_function_name(file,
74 			      function,
75 			      0/*!is_definition*/);
76   lf_printf(file, "\n");
77 }
78 
79 
80 extern void
81 gen_support_h(insn_table *table,
82 	      lf *file)
83 {
84   /* output a declaration for all functions */
85   insn_table_traverse_function(table,
86 			       file, NULL,
87 			       support_h_function);
88   lf_printf(file, "\n");
89   lf_printf(file, "#if (SUPPORT_INLINE & INCLUDE_MODULE)\n");
90   lf_printf(file, "# include \"support.c\"\n");
91   lf_printf(file, "#endif\n");
92 }
93 
94 static void
95 support_c_function(insn_table *table,
96 		   lf *file,
97 		   void *data,
98 		   table_entry *function)
99 {
100   ASSERT(function->fields[function_type] != NULL);
101   print_support_function_name(file,
102 			      function,
103 			      1/*!is_definition*/);
104   table_entry_print_cpp_line_nr(file, function);
105   lf_printf(file, "{\n");
106   lf_indent(file, +2);
107   lf_print__c_code(file, function->annex);
108   if (it_is("internal", function->fields[insn_flags])) {
109     lf_printf(file, "error(\"Internal function must longjump\\n\");\n");
110     lf_printf(file, "return 0;\n");
111   }
112   lf_indent(file, -2);
113   lf_printf(file, "}\n");
114   lf_print__internal_reference(file);
115   lf_printf(file, "\n");
116 }
117 
118 
119 void
120 gen_support_c(insn_table *table,
121 	      lf *file)
122 {
123   lf_printf(file, "#include \"cpu.h\"\n");
124   lf_printf(file, "#include \"idecode.h\"\n");
125   lf_printf(file, "#ifdef HAVE_COMMON_FPU\n");
126   lf_printf(file, "#include \"sim-inline.h\"\n");
127   lf_printf(file, "#include \"sim-fpu.h\"\n");
128   lf_printf(file, "#endif\n");
129   lf_printf(file, "#include \"support.h\"\n");
130   lf_printf(file, "\n");
131 
132   /* output a definition (c-code) for all functions */
133   insn_table_traverse_function(table,
134 			       file, NULL,
135 			       support_c_function);
136 }
137