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1 /* Pragma handling for GCC for Renesas / SuperH SH.
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2 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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3 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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4 Contributed by Joern Rennecke <joern.rennecke@st.com>.
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation; either version 3, or (at your option)
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11 any later version.
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12
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13 GCC is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #include "config.h"
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23 #include "system.h"
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24 #include "coretypes.h"
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25 #include "tm.h"
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26 #include "tree.h"
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27 #include "tm_p.h"
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28
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29 /* Handle machine specific pragmas to be semi-compatible with Renesas
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30 compiler. */
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31
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32 /* Add ATTR to the attributes of the current function. If there is no
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33 such function, save it to be added to the attributes of the next
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34 function. */
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35 static void
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36 sh_add_function_attribute (const char *attr)
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37 {
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38 tree id = get_identifier (attr);
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39
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40 if (current_function_decl)
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41 decl_attributes (¤t_function_decl,
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42 tree_cons (id, NULL_TREE, NULL_TREE), 0);
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43 else
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44 {
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45 *sh_deferred_function_attributes_tail
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46 = tree_cons (id, NULL_TREE, *sh_deferred_function_attributes_tail);
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47 sh_deferred_function_attributes_tail
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48 = &TREE_CHAIN (*sh_deferred_function_attributes_tail);
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49 }
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50 }
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51
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52 void
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53 sh_pr_interrupt (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
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54 {
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55 sh_add_function_attribute ("interrupt_handler");
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56 }
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57
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58 void
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59 sh_pr_trapa (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
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60 {
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61 sh_add_function_attribute ("trapa_handler");
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62 }
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63
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64 void
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65 sh_pr_nosave_low_regs (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
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66 {
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67 sh_add_function_attribute ("nosave_low_regs");
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68 }
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