1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/* Subroutines for the C front end on the POWER and PowerPC architectures.
Copyright (C) 2002, 2003
Free Software Foundation, Inc.
Contributed by Zack Weinberg <zack@codesourcery.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "cpplib.h"
#include "tree.h"
#include "c-pragma.h"
#include "errors.h"
#include "tm_p.h"
/* Handle the machine specific pragma longcall. Its syntax is
# pragma longcall ( TOGGLE )
where TOGGLE is either 0 or 1.
rs6000_default_long_calls is set to the value of TOGGLE, changing
whether or not new function declarations receive a longcall
attribute by default. */
#define SYNTAX_ERROR(msgid) do { \
warning (msgid); \
warning ("ignoring malformed #pragma longcall"); \
return; \
} while (0)
void
rs6000_pragma_longcall (cpp_reader *pfile ATTRIBUTE_UNUSED)
{
tree x, n;
/* If we get here, generic code has already scanned the directive
leader and the word "longcall". */
if (c_lex (&x) != CPP_OPEN_PAREN)
SYNTAX_ERROR ("missing open paren");
if (c_lex (&n) != CPP_NUMBER)
SYNTAX_ERROR ("missing number");
if (c_lex (&x) != CPP_CLOSE_PAREN)
SYNTAX_ERROR ("missing close paren");
if (n != integer_zero_node && n != integer_one_node)
SYNTAX_ERROR ("number must be 0 or 1");
if (c_lex (&x) != CPP_EOF)
warning ("junk at end of #pragma longcall");
rs6000_default_long_calls = (n == integer_one_node);
}
/* Handle defining many CPP flags based on TARGET_xxx. As a general
policy, rather than trying to guess what flags a user might want a
#define for, it's better to define a flag for everything. */
#define builtin_define(TXT) cpp_define (pfile, TXT)
#define builtin_assert(TXT) cpp_assert (pfile, TXT)
void
rs6000_cpu_cpp_builtins (cpp_reader *pfile)
{
if (TARGET_POWER2)
builtin_define ("_ARCH_PWR2");
else if (TARGET_POWER)
builtin_define ("_ARCH_PWR");
if (TARGET_POWERPC)
builtin_define ("_ARCH_PPC");
if (TARGET_POWERPC64)
builtin_define ("_ARCH_PPC64");
if (! TARGET_POWER && ! TARGET_POWER2 && ! TARGET_POWERPC)
builtin_define ("_ARCH_COM");
if (TARGET_ALTIVEC)
builtin_define ("__ALTIVEC__");
if (TARGET_SPE)
builtin_define ("__SPE__");
if (TARGET_SOFT_FLOAT)
builtin_define ("_SOFT_FLOAT");
/* Used by lwarx/stwcx. errata work-around. */
if (rs6000_cpu == PROCESSOR_PPC405)
builtin_define ("__PPC405__");
/* May be overridden by target configuration. */
RS6000_CPU_CPP_ENDIAN_BUILTINS();
if (TARGET_LONG_DOUBLE_128)
builtin_define ("__LONG_DOUBLE_128__");
switch (rs6000_current_abi)
{
case ABI_V4:
builtin_define ("_CALL_SYSV");
break;
case ABI_AIX:
builtin_define ("_CALL_AIXDESC");
builtin_define ("_CALL_AIX");
break;
case ABI_DARWIN:
builtin_define ("_CALL_DARWIN");
break;
default:
break;
}
}
|
