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Diffstat (limited to 'gcc/cppdefault.cc')
| -rw-r--r-- | gcc/cppdefault.cc | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/gcc/cppdefault.cc b/gcc/cppdefault.cc new file mode 100644 index 0000000..7888300 --- /dev/null +++ b/gcc/cppdefault.cc @@ -0,0 +1,138 @@ +/* CPP Library. + Copyright (C) 1986-2022 Free Software Foundation, Inc. + Contributed by Per Bothner, 1994-95. + Based on CCCP program by Paul Rubin, June 1986 + Adapted to ANSI C, Richard Stallman, Jan 1987 + + This program 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 3, or (at your option) any + later version. + + This program 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 this program; see the file COPYING3. If not see + <http://www.gnu.org/licenses/>. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tm.h" +#include "cppdefault.h" + +#ifndef NATIVE_SYSTEM_HEADER_COMPONENT +#define NATIVE_SYSTEM_HEADER_COMPONENT 0 +#endif + +#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT) +# undef LOCAL_INCLUDE_DIR +# undef NATIVE_SYSTEM_HEADER_DIR +#else +# undef CROSS_INCLUDE_DIR +#endif + +const struct default_include cpp_include_defaults[] +#ifdef INCLUDE_DEFAULTS += INCLUDE_DEFAULTS; +#else += { +#ifdef GPLUSPLUS_INCLUDE_DIR + /* Pick up GNU C++ generic include files. */ + { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, + GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, +#endif +#ifdef GPLUSPLUS_TOOL_INCLUDE_DIR + /* Pick up GNU C++ target-dependent include files. */ + { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, + GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 }, +#endif +#ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR + /* Pick up GNU C++ backward and deprecated include files. */ + { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, + GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, +#endif +#ifdef GPLUSPLUS_LIBCXX_INCLUDE_DIR + /* Pick up libc++ include files, if we have -stdlib=libc++. */ + { GPLUSPLUS_LIBCXX_INCLUDE_DIR, "G++", 2, 1, + GPLUSPLUS_LIBCXX_INCLUDE_DIR_ADD_SYSROOT, 0 }, +#endif +#ifdef GCC_INCLUDE_DIR + /* This is the dir for gcc's private headers. */ + { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 }, +#endif +#ifdef LOCAL_INCLUDE_DIR + /* /usr/local/include comes before the fixincluded header files. */ + { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 }, + { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 }, +#endif +#ifdef PREFIX_INCLUDE_DIR + { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 }, +#endif +#ifdef FIXED_INCLUDE_DIR + /* This is the dir for fixincludes. */ + { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0, + /* A multilib suffix needs adding if different multilibs use + different headers. */ +#ifdef SYSROOT_HEADERS_SUFFIX_SPEC + 1 +#else + 0 +#endif + }, +#endif +#ifdef CROSS_INCLUDE_DIR + /* One place the target system's headers might be. */ + { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 }, +#endif +#ifdef TOOL_INCLUDE_DIR + /* Another place the target system's headers might be. */ + { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 }, +#endif +#ifdef NATIVE_SYSTEM_HEADER_DIR + /* /usr/include comes dead last. */ + { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 2 }, + { NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 }, +#endif + { 0, 0, 0, 0, 0, 0 } + }; +#endif /* no INCLUDE_DEFAULTS */ + +#ifdef GCC_INCLUDE_DIR +const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR; +const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8; +#else +const char cpp_GCC_INCLUDE_DIR[] = ""; +const size_t cpp_GCC_INCLUDE_DIR_len = 0; +#endif + +/* The configured prefix. */ +const char cpp_PREFIX[] = PREFIX; +const size_t cpp_PREFIX_len = sizeof PREFIX - 1; +const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX; + +/* This value is set by cpp_relocated at runtime */ +const char *gcc_exec_prefix; + +/* Return true if the toolchain is relocated. */ +bool +cpp_relocated (void) +{ + static int relocated = -1; + + /* A relocated toolchain ignores standard include directories. */ + if (relocated == -1) + { + /* Check if the toolchain was relocated? */ + gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX"); + if (gcc_exec_prefix) + relocated = 1; + else + relocated = 0; + } + + return relocated; +} |