Branch data Line data Source code
1 : : /* CPP Library.
2 : : Copyright (C) 1986-2024 Free Software Foundation, Inc.
3 : : Contributed by Per Bothner, 1994-95.
4 : : Based on CCCP program by Paul Rubin, June 1986
5 : : Adapted to ANSI C, Richard Stallman, Jan 1987
6 : :
7 : : This program is free software; you can redistribute it and/or modify it
8 : : under the terms of the GNU General Public License as published by the
9 : : Free Software Foundation; either version 3, or (at your option) any
10 : : later version.
11 : :
12 : : This program 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.
16 : :
17 : : You should have received a copy of the GNU General Public License
18 : : along with this program; see the file COPYING3. If not see
19 : : <http://www.gnu.org/licenses/>. */
20 : :
21 : : #include "config.h"
22 : : #include "system.h"
23 : : #include "coretypes.h"
24 : : #include "tm.h"
25 : : #include "cppdefault.h"
26 : :
27 : : #ifndef NATIVE_SYSTEM_HEADER_COMPONENT
28 : : #define NATIVE_SYSTEM_HEADER_COMPONENT 0
29 : : #endif
30 : :
31 : : #if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
32 : : # undef LOCAL_INCLUDE_DIR
33 : : # undef NATIVE_SYSTEM_HEADER_DIR
34 : : #else
35 : : # undef CROSS_INCLUDE_DIR
36 : : #endif
37 : :
38 : : const struct default_include cpp_include_defaults[]
39 : : #ifdef INCLUDE_DEFAULTS
40 : : = INCLUDE_DEFAULTS;
41 : : #else
42 : : = {
43 : : #ifdef GPLUSPLUS_INCLUDE_DIR
44 : : /* Pick up GNU C++ generic include files. */
45 : : { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,
46 : : GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
47 : : #endif
48 : : #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
49 : : /* Pick up GNU C++ target-dependent include files. */
50 : : { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,
51 : : GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },
52 : : #endif
53 : : #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
54 : : /* Pick up GNU C++ backward and deprecated include files. */
55 : : { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,
56 : : GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
57 : : #endif
58 : : #ifdef GPLUSPLUS_LIBCXX_INCLUDE_DIR
59 : : /* Pick up libc++ include files, if we have -stdlib=libc++. */
60 : : { GPLUSPLUS_LIBCXX_INCLUDE_DIR, "G++", 2, 1,
61 : : GPLUSPLUS_LIBCXX_INCLUDE_DIR_ADD_SYSROOT, 0 },
62 : : #endif
63 : : #ifdef GCC_INCLUDE_DIR
64 : : /* This is the dir for gcc's private headers. */
65 : : { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
66 : : #endif
67 : : #ifdef LOCAL_INCLUDE_DIR
68 : : /* /usr/local/include comes before the fixincluded header files. */
69 : : { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },
70 : : { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
71 : : #endif
72 : : #ifdef PREFIX_INCLUDE_DIR
73 : : { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 },
74 : : #endif
75 : : #ifdef FIXED_INCLUDE_DIR
76 : : /* This is the dir for fixincludes. */
77 : : #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
78 : : { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0, 2 },
79 : : #endif
80 : : { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0,
81 : : /* A multilib suffix needs adding if different multilibs use
82 : : different headers. */
83 : : #ifdef SYSROOT_HEADERS_SUFFIX_SPEC
84 : : 1
85 : : #else
86 : : 0
87 : : #endif
88 : : },
89 : : #endif
90 : : #ifdef CROSS_INCLUDE_DIR
91 : : /* One place the target system's headers might be. */
92 : : { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
93 : : #endif
94 : : #ifdef TOOL_INCLUDE_DIR
95 : : /* Another place the target system's headers might be. */
96 : : { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 },
97 : : #endif
98 : : #ifdef NATIVE_SYSTEM_HEADER_DIR
99 : : /* /usr/include comes dead last. */
100 : : { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 },
101 : : { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 },
102 : : #endif
103 : : { 0, 0, 0, 0, 0, 0 }
104 : : };
105 : : #endif /* no INCLUDE_DEFAULTS */
106 : :
107 : : #ifdef GCC_INCLUDE_DIR
108 : : const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR;
109 : : const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8;
110 : : #else
111 : : const char cpp_GCC_INCLUDE_DIR[] = "";
112 : : const size_t cpp_GCC_INCLUDE_DIR_len = 0;
113 : : #endif
114 : :
115 : : /* The configured prefix. */
116 : : const char cpp_PREFIX[] = PREFIX;
117 : : const size_t cpp_PREFIX_len = sizeof PREFIX - 1;
118 : : const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX;
119 : :
120 : : /* This value is set by cpp_relocated at runtime */
121 : : const char *gcc_exec_prefix;
122 : :
123 : : /* Return true if the toolchain is relocated. */
124 : : bool
125 : 198049 : cpp_relocated (void)
126 : : {
127 : 198049 : static int relocated = -1;
128 : :
129 : : /* A relocated toolchain ignores standard include directories. */
130 : 198049 : if (relocated == -1)
131 : : {
132 : : /* Check if the toolchain was relocated? */
133 : 198049 : gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
134 : 198049 : if (gcc_exec_prefix)
135 : 198049 : relocated = 1;
136 : : else
137 : 0 : relocated = 0;
138 : : }
139 : :
140 : 198049 : return relocated;
141 : : }
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