Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/rs6000/linux.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | a06113de4d67 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of target machine for GNU compiler, |
| 2 for PowerPC machines running Linux. | |
| 3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, | |
|
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
4 2004, 2005, 2006, 2007, 2010, 2011 Free Software Foundation, Inc. |
| 0 | 5 Contributed by Michael Meissner (meissner@cygnus.com). |
| 6 | |
| 7 This file is part of GCC. | |
| 8 | |
| 9 GCC is free software; you can redistribute it and/or modify it | |
| 10 under the terms of the GNU General Public License as published | |
| 11 by the Free Software Foundation; either version 3, or (at your | |
| 12 option) any later version. | |
| 13 | |
| 14 GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 17 License for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with GCC; see the file COPYING3. If not see | |
| 21 <http://www.gnu.org/licenses/>. */ | |
| 22 | |
| 23 /* Linux doesn't support saving and restoring 64-bit regs in a 32-bit | |
| 24 process. */ | |
| 25 #define OS_MISSING_POWERPC64 1 | |
| 26 | |
| 27 /* We use glibc _mcount for profiling. */ | |
| 28 #define NO_PROFILE_COUNTERS 1 | |
| 29 | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
30 #ifdef SINGLE_LIBC |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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31 #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC) |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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32 #else |
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f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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33 #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
34 #endif |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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35 |
| 0 | 36 /* glibc has float and long double forms of math functions. */ |
| 37 #undef TARGET_C99_FUNCTIONS | |
| 38 #define TARGET_C99_FUNCTIONS (OPTION_GLIBC) | |
| 39 | |
| 40 /* Whether we have sincos that follows the GNU extension. */ | |
| 41 #undef TARGET_HAS_SINCOS | |
| 42 #define TARGET_HAS_SINCOS (OPTION_GLIBC) | |
| 43 | |
| 44 #undef TARGET_OS_CPP_BUILTINS | |
| 45 #define TARGET_OS_CPP_BUILTINS() \ | |
| 46 do \ | |
| 47 { \ | |
| 48 builtin_define_std ("PPC"); \ | |
| 49 builtin_define_std ("powerpc"); \ | |
| 50 builtin_assert ("cpu=powerpc"); \ | |
| 51 builtin_assert ("machine=powerpc"); \ | |
| 52 TARGET_OS_SYSV_CPP_BUILTINS (); \ | |
| 53 } \ | |
| 54 while (0) | |
| 55 | |
| 56 #undef CPP_OS_DEFAULT_SPEC | |
| 57 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)" | |
| 58 | |
| 59 /* The GNU C++ standard library currently requires _GNU_SOURCE being | |
| 60 defined on glibc-based systems. This temporary hack accomplishes this, | |
| 61 it should go away as soon as libstdc++-v3 has a real fix. */ | |
| 62 #undef CPLUSPLUS_CPP_SPEC | |
| 63 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" | |
| 64 | |
| 65 #undef LINK_SHLIB_SPEC | |
| 66 #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}" | |
| 67 | |
| 68 #undef LIB_DEFAULT_SPEC | |
| 69 #define LIB_DEFAULT_SPEC "%(lib_linux)" | |
| 70 | |
| 71 #undef STARTFILE_DEFAULT_SPEC | |
| 72 #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" | |
| 73 | |
| 74 #undef ENDFILE_DEFAULT_SPEC | |
| 75 #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" | |
| 76 | |
| 77 #undef LINK_START_DEFAULT_SPEC | |
| 78 #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" | |
| 79 | |
| 80 #undef LINK_OS_DEFAULT_SPEC | |
| 81 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" | |
| 82 | |
| 83 #define LINK_GCC_C_SEQUENCE_SPEC \ | |
| 84 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" | |
| 85 | |
| 86 /* Use --as-needed -lgcc_s for eh support. */ | |
| 87 #ifdef HAVE_LD_AS_NEEDED | |
| 88 #define USE_LD_AS_NEEDED 1 | |
| 89 #endif | |
| 90 | |
| 91 #undef TARGET_VERSION | |
| 92 #define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)"); | |
| 93 | |
| 94 /* Override rs6000.h definition. */ | |
| 95 #undef ASM_APP_ON | |
| 96 #define ASM_APP_ON "#APP\n" | |
| 97 | |
| 98 /* Override rs6000.h definition. */ | |
| 99 #undef ASM_APP_OFF | |
| 100 #define ASM_APP_OFF "#NO_APP\n" | |
| 101 | |
| 102 /* For backward compatibility, we must continue to use the AIX | |
| 103 structure return convention. */ | |
| 104 #undef DRAFT_V4_STRUCT_RET | |
| 105 #define DRAFT_V4_STRUCT_RET 1 | |
| 106 | |
| 107 /* We are 32-bit all the time, so optimize a little. */ | |
| 108 #undef TARGET_64BIT | |
| 109 #define TARGET_64BIT 0 | |
| 110 | |
| 111 /* We don't need to generate entries in .fixup, except when | |
| 112 -mrelocatable or -mrelocatable-lib is given. */ | |
| 113 #undef RELOCATABLE_NEEDS_FIXUP | |
| 114 #define RELOCATABLE_NEEDS_FIXUP \ | |
| 115 (target_flags & target_flags_explicit & MASK_RELOCATABLE) | |
| 116 | |
| 117 #define TARGET_POSIX_IO | |
| 118 | |
| 119 #define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h" | |
| 120 | |
| 121 #ifdef TARGET_LIBC_PROVIDES_SSP | |
| 122 /* ppc32 glibc provides __stack_chk_guard in -0x7008(2). */ | |
| 123 #define TARGET_THREAD_SSP_OFFSET -0x7008 | |
| 124 #endif | |
| 125 | |
| 126 #define POWERPC_LINUX | |
| 127 | |
| 128 /* ppc linux has 128-bit long double support in glibc 2.4 and later. */ | |
| 129 #ifdef TARGET_DEFAULT_LONG_DOUBLE_128 | |
| 130 #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 | |
| 131 #endif | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
132 |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
133 /* Static stack checking is supported by means of probes. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
134 #define STACK_CHECK_STATIC_BUILTIN 1 |