1 /* v850 specific, C compiler specific functions.
2 Copyright (C) 2000-2013 Free Software Foundation, Inc.
3 Contributed by Jeff Law (law@cygnus.com).
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"
27 #include "stringpool.h"
29 #include "c-family/c-pragma.h"
30 #include "diagnostic-core.h"
35 #define streq(a,b) (strcmp (a, b) == 0)
38 static int pop_data_area (v850_data_area
);
39 static int push_data_area (v850_data_area
);
40 static void mark_current_function_as_interrupt (void);
42 /* Push a data area onto the stack. */
45 push_data_area (v850_data_area data_area
)
47 data_area_stack_element
* elem
;
49 elem
= (data_area_stack_element
*) xmalloc (sizeof (* elem
));
54 elem
->prev
= data_area_stack
;
55 elem
->data_area
= data_area
;
57 data_area_stack
= elem
;
62 /* Remove a data area from the stack. */
65 pop_data_area (v850_data_area data_area
)
67 if (data_area_stack
== NULL
)
68 warning (OPT_Wpragmas
, "#pragma GHS endXXXX found without "
70 else if (data_area
!= data_area_stack
->data_area
)
71 warning (OPT_Wpragmas
, "#pragma GHS endXXX does not match "
75 data_area_stack_element
* elem
;
77 elem
= data_area_stack
;
78 data_area_stack
= data_area_stack
->prev
;
88 /* Set the machine specific 'interrupt' attribute on the current function. */
91 mark_current_function_as_interrupt (void)
95 if (current_function_decl
== NULL_TREE
)
97 warning (0, "cannot set interrupt attribute: no current function");
101 name
= get_identifier ("interrupt");
103 if (name
== NULL_TREE
|| TREE_CODE (name
) != IDENTIFIER_NODE
)
105 warning (0, "cannot set interrupt attribute: no such identifier");
109 decl_attributes (¤t_function_decl
,
110 tree_cons (name
, NULL_TREE
, NULL_TREE
), 0);
114 /* Support for GHS pragmata. */
117 ghs_pragma_section (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
121 /* #pragma ghs section [name = alias [, name = alias [, ...]]] */
127 const char *sect
, *alias
;
128 enum GHS_section_kind kind
;
130 type
= pragma_lex (&x
);
132 if (type
== CPP_EOF
&& !repeat
)
134 else if (type
== CPP_NAME
)
137 sect
= IDENTIFIER_POINTER (sect_ident
);
143 if (pragma_lex (&x
) != CPP_EQ
)
145 if (pragma_lex (&x
) != CPP_NAME
)
148 alias
= IDENTIFIER_POINTER (x
);
150 type
= pragma_lex (&x
);
151 if (type
== CPP_COMMA
)
153 else if (type
!= CPP_EOF
)
154 warning (OPT_Wpragmas
, "junk at end of #pragma ghs section");
156 if (streq (sect
, "data")) kind
= GHS_SECTION_KIND_DATA
;
157 else if (streq (sect
, "text")) kind
= GHS_SECTION_KIND_TEXT
;
158 else if (streq (sect
, "rodata")) kind
= GHS_SECTION_KIND_RODATA
;
159 else if (streq (sect
, "const")) kind
= GHS_SECTION_KIND_RODATA
;
160 else if (streq (sect
, "rosdata")) kind
= GHS_SECTION_KIND_ROSDATA
;
161 else if (streq (sect
, "rozdata")) kind
= GHS_SECTION_KIND_ROZDATA
;
162 else if (streq (sect
, "sdata")) kind
= GHS_SECTION_KIND_SDATA
;
163 else if (streq (sect
, "tdata")) kind
= GHS_SECTION_KIND_TDATA
;
164 else if (streq (sect
, "zdata")) kind
= GHS_SECTION_KIND_ZDATA
;
165 /* According to GHS beta documentation, the following should not be
167 else if (streq (sect
, "bss")) kind
= GHS_SECTION_KIND_BSS
;
168 else if (streq (sect
, "zbss")) kind
= GHS_SECTION_KIND_ZDATA
;
171 warning (0, "unrecognized section name %qE", sect_ident
);
175 if (streq (alias
, "default"))
176 GHS_current_section_names
[kind
] = NULL
;
178 GHS_current_section_names
[kind
] =
179 build_string (strlen (alias
) + 1, alias
);
186 warning (OPT_Wpragmas
, "malformed #pragma ghs section");
190 /* #pragma ghs section \n: Reset all section names back to their defaults. */
194 for (i
= COUNT_OF_GHS_SECTION_KINDS
; i
--;)
195 GHS_current_section_names
[i
] = NULL
;
200 ghs_pragma_interrupt (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
204 if (pragma_lex (&x
) != CPP_EOF
)
205 warning (OPT_Wpragmas
, "junk at end of #pragma ghs interrupt");
207 mark_current_function_as_interrupt ();
211 ghs_pragma_starttda (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
215 if (pragma_lex (&x
) != CPP_EOF
)
216 warning (OPT_Wpragmas
, "junk at end of #pragma ghs starttda");
218 push_data_area (DATA_AREA_TDA
);
222 ghs_pragma_startsda (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
226 if (pragma_lex (&x
) != CPP_EOF
)
227 warning (OPT_Wpragmas
, "junk at end of #pragma ghs startsda");
229 push_data_area (DATA_AREA_SDA
);
233 ghs_pragma_startzda (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
237 if (pragma_lex (&x
) != CPP_EOF
)
238 warning (OPT_Wpragmas
, "junk at end of #pragma ghs startzda");
240 push_data_area (DATA_AREA_ZDA
);
244 ghs_pragma_endtda (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
248 if (pragma_lex (&x
) != CPP_EOF
)
249 warning (OPT_Wpragmas
, "junk at end of #pragma ghs endtda");
251 pop_data_area (DATA_AREA_TDA
);
255 ghs_pragma_endsda (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
259 if (pragma_lex (&x
) != CPP_EOF
)
260 warning (OPT_Wpragmas
, "junk at end of #pragma ghs endsda");
262 pop_data_area (DATA_AREA_SDA
);
266 ghs_pragma_endzda (cpp_reader
* pfile ATTRIBUTE_UNUSED
)
270 if (pragma_lex (&x
) != CPP_EOF
)
271 warning (OPT_Wpragmas
, "junk at end of #pragma ghs endzda");
273 pop_data_area (DATA_AREA_ZDA
);