1 /* Subroutines for the C front end on the POWER and PowerPC architectures.
3 Free Software Foundation, Inc.
5 Contributed by Zack Weinberg <zack@codesourcery.com>
7 This file is part of GNU CC.
9 GNU CC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GNU CC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU CC; see the file COPYING. If not, write to
21 the Free Software Foundation, 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
32 /* Handle the machine specific pragma longcall. Its syntax is
34 # pragma longcall ( TOGGLE )
36 where TOGGLE is either 0 or 1.
38 rs6000_default_long_calls is set to the value of TOGGLE, changing
39 whether or not new function declarations receive a longcall
40 attribute by default. */
42 #define SYNTAX_ERROR(msgid) do { \
44 warning ("ignoring malformed #pragma longcall"); \
49 rs6000_pragma_longcall (pfile)
50 cpp_reader *pfile ATTRIBUTE_UNUSED;
54 /* If we get here, generic code has already scanned the directive
55 leader and the word "longcall". */
57 if (c_lex (&x) != CPP_OPEN_PAREN)
58 SYNTAX_ERROR ("missing open paren");
59 if (c_lex (&n) != CPP_NUMBER)
60 SYNTAX_ERROR ("missing number");
61 if (c_lex (&x) != CPP_CLOSE_PAREN)
62 SYNTAX_ERROR ("missing close paren");
64 if (n != integer_zero_node && n != integer_one_node)
65 SYNTAX_ERROR ("number must be 0 or 1");
67 if (c_lex (&x) != CPP_EOF)
68 warning ("junk at end of #pragma longcall");
70 rs6000_default_long_calls = (n == integer_one_node);
73 /* Handle defining many CPP flags based on TARGET_xxx. As a general
74 policy, rather than trying to guess what flags a user might want a
75 #define for, it's better to define a flag for everything. */
77 #define builtin_define(TXT) cpp_define (pfile, TXT)
78 #define builtin_assert(TXT) cpp_assert (pfile, TXT)
81 rs6000_cpu_cpp_builtins (pfile)
85 builtin_define ("_ARCH_PWR2");
86 else if (TARGET_POWER)
87 builtin_define ("_ARCH_PWR");
89 builtin_define ("_ARCH_PPC");
91 builtin_define ("_ARCH_PPC64");
92 if (! TARGET_POWER && ! TARGET_POWER2 && ! TARGET_POWERPC)
93 builtin_define ("_ARCH_COM");
95 builtin_define ("__ALTIVEC__");
97 builtin_define ("__SPE__");
98 if (TARGET_SOFT_FLOAT)
99 builtin_define ("_SOFT_FLOAT");
100 if (BYTES_BIG_ENDIAN)
102 builtin_define ("__BIG_ENDIAN__");
103 builtin_define ("_BIG_ENDIAN");
104 builtin_assert ("machine=bigendian");
108 builtin_define ("__LITTLE_ENDIAN__");
109 builtin_define ("_LITTLE_ENDIAN");
110 builtin_assert ("machine=littleendian");
112 if (TARGET_LONG_DOUBLE_128)
113 builtin_define ("__LONG_DOUBLE_128__");
115 switch (rs6000_current_abi)
118 builtin_define ("_CALL_SYSV");
121 builtin_define ("_CALL_AIX");
124 builtin_define ("_CALL_AIXDESC");
125 builtin_define ("_CALL_AIX");
128 builtin_define ("_CALL_DARWIN");