/usr/lib/gcc-cross/mips64el-linux-gnuabi64/6/plugin/include/config/linux.h is in gcc-6-plugin-dev-mips64el-linux-gnuabi64 6.3.0-18cross1.
This file is owned by root:root, with mode 0o644.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 | /* Definitions for systems using the Linux kernel, with or without
MMU, using ELF at the compiler level but possibly FLT for final
linked executables and shared libraries in some no-MMU cases, and
possibly with a choice of libc implementations.
Copyright (C) 1995-2016 Free Software Foundation, Inc.
Contributed by Eric Youngdale.
Modified for stabs-in-ELF by H.J. Lu (hjl@lucon.org).
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 3, 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* C libraries supported on Linux. */
#ifdef SINGLE_LIBC
#define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
#define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
#define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
#undef OPTION_MUSL
#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
#else
#define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
#define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
#define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
#undef OPTION_MUSL
#define OPTION_MUSL (linux_libc == LIBC_MUSL)
#endif
#define GNU_USER_TARGET_OS_CPP_BUILTINS() \
do { \
if (OPTION_GLIBC) \
builtin_define ("__gnu_linux__"); \
builtin_define_std ("linux"); \
builtin_define_std ("unix"); \
builtin_assert ("system=linux"); \
builtin_assert ("system=unix"); \
builtin_assert ("system=posix"); \
} while (0)
#define TARGET_OS_D_BUILTINS() TARGET_GENERIC_LINUX_OS_D_BUILTINS()
#define TARGET_GENERIC_LINUX_OS_D_BUILTINS() \
do { \
if (OPTION_GLIBC) \
{ \
builtin_define ("GNU_GLibc"); \
builtin_define ("CRuntime_Glibc"); \
} \
else if (OPTION_UCLIBC) \
{ \
builtin_define ("GNU_UCLibc"); \
} \
else if (OPTION_BIONIC) \
{ \
builtin_define ("GNU_Bionic"); \
builtin_define ("CRuntime_Bionic"); \
} \
\
builtin_define ("linux"); \
builtin_define ("Posix"); \
} while (0)
/* Determine which dynamic linker to use depending on whether GLIBC or
uClibc or Bionic or musl is the default C library and whether
-muclibc or -mglibc or -mbionic or -mmusl has been passed to change
the default. */
#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LIBC4, LD1, LD2, LD3, LD4) \
"%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:%{" LIBC4 ":" LD4 ";:" LD1 "}}}"
#if DEFAULT_LIBC == LIBC_GLIBC
#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", "mmusl", G, U, B, M)
#elif DEFAULT_LIBC == LIBC_UCLIBC
#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", "mmusl", U, G, B, M)
#elif DEFAULT_LIBC == LIBC_BIONIC
#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", "mmusl", B, G, U, M)
#elif DEFAULT_LIBC == LIBC_MUSL
#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
CHOOSE_DYNAMIC_LINKER1 ("mmusl", "mglibc", "muclibc", "mbionic", M, G, U, B)
#else
#error "Unsupported DEFAULT_LIBC"
#endif /* DEFAULT_LIBC */
/* For most targets the following definitions suffice;
GLIBC_DYNAMIC_LINKER must be defined for each target using them, or
GLIBC_DYNAMIC_LINKER32 and GLIBC_DYNAMIC_LINKER64 for targets
supporting both 32-bit and 64-bit compilation. */
#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
#define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
#define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
#define UCLIBC_DYNAMIC_LINKERX32 "/lib/ldx32-uClibc.so.0"
#define BIONIC_DYNAMIC_LINKER "/system/bin/linker"
#define BIONIC_DYNAMIC_LINKER32 "/system/bin/linker"
#define BIONIC_DYNAMIC_LINKER64 "/system/bin/linker64"
#define BIONIC_DYNAMIC_LINKERX32 "/system/bin/linkerx32"
/* Should be redefined for each target that supports musl. */
#define MUSL_DYNAMIC_LINKER "/dev/null"
#define MUSL_DYNAMIC_LINKER32 "/dev/null"
#define MUSL_DYNAMIC_LINKER64 "/dev/null"
#define MUSL_DYNAMIC_LINKERX32 "/dev/null"
#define GNU_USER_DYNAMIC_LINKER \
CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, \
BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
#define GNU_USER_DYNAMIC_LINKER32 \
CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
#define GNU_USER_DYNAMIC_LINKER64 \
CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
#define GNU_USER_DYNAMIC_LINKERX32 \
CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERX32, UCLIBC_DYNAMIC_LINKERX32, \
BIONIC_DYNAMIC_LINKERX32, MUSL_DYNAMIC_LINKERX32)
/* Whether we have Bionic libc runtime */
#undef TARGET_HAS_BIONIC
#define TARGET_HAS_BIONIC (OPTION_BIONIC)
/* musl avoids problematic includes by rearranging the include directories.
* Unfortunately, this is mostly duplicated from cppdefault.c */
#if DEFAULT_LIBC == LIBC_MUSL
#define INCLUDE_DEFAULTS_MUSL_GPP \
{ GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, \
GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, \
{ GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, \
GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 }, \
{ GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, \
GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
#ifdef LOCAL_INCLUDE_DIR
#define INCLUDE_DEFAULTS_MUSL_LOCAL \
{ LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 }, \
{ LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
#else
#define INCLUDE_DEFAULTS_MUSL_LOCAL
#endif
#ifdef PREFIX_INCLUDE_DIR
#define INCLUDE_DEFAULTS_MUSL_PREFIX \
{ PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
#else
#define INCLUDE_DEFAULTS_MUSL_PREFIX
#endif
#ifdef CROSS_INCLUDE_DIR
#define INCLUDE_DEFAULTS_MUSL_CROSS \
{ CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
#else
#define INCLUDE_DEFAULTS_MUSL_CROSS
#endif
#ifdef TOOL_INCLUDE_DIR
#define INCLUDE_DEFAULTS_MUSL_TOOL \
{ TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
#else
#define INCLUDE_DEFAULTS_MUSL_TOOL
#endif
#ifdef NATIVE_SYSTEM_HEADER_DIR
#define INCLUDE_DEFAULTS_MUSL_NATIVE \
{ NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 }, \
{ NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
#else
#define INCLUDE_DEFAULTS_MUSL_NATIVE
#endif
#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
# undef INCLUDE_DEFAULTS_MUSL_LOCAL
# define INCLUDE_DEFAULTS_MUSL_LOCAL
# undef INCLUDE_DEFAULTS_MUSL_NATIVE
# define INCLUDE_DEFAULTS_MUSL_NATIVE
#else
# undef INCLUDE_DEFAULTS_MUSL_CROSS
# define INCLUDE_DEFAULTS_MUSL_CROSS
#endif
#undef INCLUDE_DEFAULTS
#define INCLUDE_DEFAULTS \
{ \
INCLUDE_DEFAULTS_MUSL_GPP \
INCLUDE_DEFAULTS_MUSL_LOCAL \
INCLUDE_DEFAULTS_MUSL_PREFIX \
INCLUDE_DEFAULTS_MUSL_CROSS \
INCLUDE_DEFAULTS_MUSL_TOOL \
INCLUDE_DEFAULTS_MUSL_NATIVE \
{ GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 }, \
{ 0, 0, 0, 0, 0, 0 } \
}
#endif
#if (DEFAULT_LIBC == LIBC_UCLIBC) && defined (SINGLE_LIBC) /* uClinux */
/* This is a *uclinux* target. We don't define below macros to normal linux
versions, because doing so would require *uclinux* targets to include
linux.c, linux-protos.h, linux.opt, etc. We could, alternatively, add
these files to *uclinux* targets, but that would only pollute option list
(add -mglibc, etc.) without adding any useful support. */
/* Define TARGET_LIBC_HAS_FUNCTION for *uclinux* targets to
no_c99_libc_has_function, because uclibc does not, normally, have
c99 runtime. If, in special cases, uclibc does have c99 runtime,
this should be defined to a new hook. Also please note that for targets
like *-linux-uclibc that similar check will also need to be added to
linux_libc_has_function. */
# undef TARGET_LIBC_HAS_FUNCTION
# define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
#else /* !uClinux, i.e., normal Linux */
/* Determine what functions are present at the runtime;
this includes full c99 runtime and sincos. */
# undef TARGET_LIBC_HAS_FUNCTION
# define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function
#endif
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