Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/rs6000/linux.h @ 158:494b0b89df80 default tip
...
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of target machine for GNU compiler, |
| 2 for PowerPC machines running Linux. | |
| 145 | 3 Copyright (C) 1996-2020 Free Software Foundation, Inc. |
| 0 | 4 Contributed by Michael Meissner (meissner@cygnus.com). |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published | |
| 10 by the Free Software Foundation; either version 3, or (at your | |
| 11 option) any later version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 16 License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 /* Linux doesn't support saving and restoring 64-bit regs in a 32-bit | |
| 23 process. */ | |
| 24 #define OS_MISSING_POWERPC64 1 | |
| 25 | |
| 26 /* We use glibc _mcount for profiling. */ | |
| 27 #define NO_PROFILE_COUNTERS 1 | |
| 28 | |
|
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
|
29 #ifdef SINGLE_LIBC |
|
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 #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC) |
| 111 | 31 #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC) |
| 32 #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC) | |
| 33 #undef OPTION_MUSL | |
| 34 #define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL) | |
|
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
|
35 #else |
|
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
|
36 #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
| 111 | 37 #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC) |
| 38 #define OPTION_BIONIC (linux_libc == LIBC_BIONIC) | |
| 39 #undef OPTION_MUSL | |
| 40 #define OPTION_MUSL (linux_libc == LIBC_MUSL) | |
|
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
|
41 #endif |
|
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
|
42 |
| 111 | 43 /* Determine what functions are present at the runtime; |
| 44 this includes full c99 runtime and sincos. */ | |
| 45 #undef TARGET_LIBC_HAS_FUNCTION | |
| 46 #define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function | |
| 0 | 47 |
| 48 #undef TARGET_OS_CPP_BUILTINS | |
| 145 | 49 #define TARGET_OS_CPP_BUILTINS() \ |
| 50 do \ | |
| 51 { \ | |
| 52 if (strcmp (rs6000_abi_name, "linux") == 0) \ | |
| 53 GNU_USER_TARGET_OS_CPP_BUILTINS(); \ | |
| 54 builtin_define_std ("PPC"); \ | |
| 55 builtin_define_std ("powerpc"); \ | |
| 56 builtin_assert ("cpu=powerpc"); \ | |
| 57 builtin_assert ("machine=powerpc"); \ | |
| 58 TARGET_OS_SYSV_CPP_BUILTINS (); \ | |
| 59 } \ | |
| 0 | 60 while (0) |
| 61 | |
| 62 #undef CPP_OS_DEFAULT_SPEC | |
| 63 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)" | |
| 64 | |
| 65 #undef LINK_SHLIB_SPEC | |
| 111 | 66 #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}} \ |
| 67 %{static-pie:-static -pie --no-dynamic-linker -z text}" | |
| 0 | 68 |
| 69 #undef LIB_DEFAULT_SPEC | |
| 70 #define LIB_DEFAULT_SPEC "%(lib_linux)" | |
| 71 | |
| 72 #undef STARTFILE_DEFAULT_SPEC | |
| 73 #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" | |
| 74 | |
| 75 #undef ENDFILE_DEFAULT_SPEC | |
| 76 #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" | |
| 77 | |
| 78 #undef LINK_START_DEFAULT_SPEC | |
| 79 #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" | |
| 80 | |
| 81 #undef LINK_OS_DEFAULT_SPEC | |
| 82 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" | |
| 83 | |
| 111 | 84 #undef DEFAULT_ASM_ENDIAN |
| 85 #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN) | |
| 86 #define DEFAULT_ASM_ENDIAN " -mlittle" | |
| 87 #define LINK_OS_LINUX_EMUL ENDIAN_SELECT(" -m elf32ppclinux", \ | |
| 88 " -m elf32lppclinux", \ | |
| 89 " -m elf32lppclinux") | |
| 90 #else | |
| 91 #define DEFAULT_ASM_ENDIAN " -mbig" | |
| 92 #define LINK_OS_LINUX_EMUL ENDIAN_SELECT(" -m elf32ppclinux", \ | |
| 93 " -m elf32lppclinux", \ | |
| 94 " -m elf32ppclinux") | |
| 0 | 95 #endif |
| 96 | |
| 111 | 97 #undef LINK_OS_LINUX_SPEC |
| 98 #define LINK_OS_LINUX_SPEC LINK_OS_LINUX_EMUL " %{!shared: %{!static: \ | |
| 99 %{!static-pie: \ | |
| 100 %{rdynamic:-export-dynamic} \ | |
| 101 -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}}" | |
| 0 | 102 |
| 103 /* For backward compatibility, we must continue to use the AIX | |
| 104 structure return convention. */ | |
| 105 #undef DRAFT_V4_STRUCT_RET | |
| 106 #define DRAFT_V4_STRUCT_RET 1 | |
| 107 | |
| 108 /* We are 32-bit all the time, so optimize a little. */ | |
| 109 #undef TARGET_64BIT | |
| 110 #define TARGET_64BIT 0 | |
| 111 | |
| 112 /* We don't need to generate entries in .fixup, except when | |
| 113 -mrelocatable or -mrelocatable-lib is given. */ | |
| 114 #undef RELOCATABLE_NEEDS_FIXUP | |
| 115 #define RELOCATABLE_NEEDS_FIXUP \ | |
| 111 | 116 (rs6000_isa_flags & rs6000_isa_flags_explicit & OPTION_MASK_RELOCATABLE) |
| 0 | 117 |
| 145 | 118 #undef RS6000_ABI_NAME |
| 119 #define RS6000_ABI_NAME "linux" | |
| 120 | |
| 0 | 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 |
|
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 |
| 111 | 135 |
| 136 /* Software floating point support for exceptions and rounding modes | |
| 137 depends on the C library in use. */ | |
| 138 #undef TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P | |
| 139 #define TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P \ | |
| 140 rs6000_linux_float_exceptions_rounding_supported_p | |
| 141 | |
| 142 /* Support for TARGET_ATOMIC_ASSIGN_EXPAND_FENV without FPRs depends | |
| 143 on glibc 2.19 or greater. */ | |
| 144 #if TARGET_GLIBC_MAJOR > 2 \ | |
| 145 || (TARGET_GLIBC_MAJOR == 2 && TARGET_GLIBC_MINOR >= 19) | |
| 146 #define RS6000_GLIBC_ATOMIC_FENV 1 | |
| 147 #endif |