Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/arm/linux-elf.h @ 158:494b0b89df80 default tip
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| 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 for ARM running Linux-based GNU systems using ELF |
| 145 | 2 Copyright (C) 1993-2020 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Philip Blundell <philb@gnu.org> |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published | |
| 9 by the Free Software Foundation; either version 3, or (at your | |
| 10 option) any later version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 15 License for more details. | |
| 16 | |
| 111 | 17 Under Section 7 of GPL version 3, you are granted additional |
| 18 permissions described in the GCC Runtime Library Exception, version | |
| 19 3.1, as published by the Free Software Foundation. | |
| 20 | |
| 21 You should have received a copy of the GNU General Public License and | |
| 22 a copy of the GCC Runtime Library Exception along with this program; | |
| 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 0 | 24 <http://www.gnu.org/licenses/>. */ |
| 25 | |
| 26 /* elfos.h should have already been included. Now just override | |
| 27 any conflicting definitions and add any extras. */ | |
| 28 | |
| 29 /* Run-time Target Specification. */ | |
| 30 #undef TARGET_DEFAULT_FLOAT_ABI | |
| 31 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD | |
| 32 | |
| 33 /* TARGET_BIG_ENDIAN_DEFAULT is set in | |
| 34 config.gcc for big endian configurations. */ | |
| 35 #if TARGET_BIG_ENDIAN_DEFAULT | |
| 36 #define TARGET_ENDIAN_DEFAULT MASK_BIG_END | |
| 37 #define TARGET_ENDIAN_OPTION "mbig-endian" | |
| 38 #define TARGET_LINKER_EMULATION "armelfb_linux" | |
| 39 #else | |
| 40 #define TARGET_ENDIAN_DEFAULT 0 | |
| 41 #define TARGET_ENDIAN_OPTION "mlittle-endian" | |
| 42 #define TARGET_LINKER_EMULATION "armelf_linux" | |
| 43 #endif | |
| 44 | |
| 45 #undef TARGET_DEFAULT | |
| 46 #define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT) | |
| 47 | |
| 48 #define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p" | |
| 49 | |
| 111 | 50 /* We do not have any MULTILIB_OPTIONS specified, so there are no |
| 51 MULTILIB_DEFAULTS. */ | |
| 0 | 52 #undef MULTILIB_DEFAULTS |
| 53 | |
| 54 /* Now we define the strings used to build the spec file. */ | |
| 55 #undef LIB_SPEC | |
| 56 #define LIB_SPEC \ | |
| 57 "%{pthread:-lpthread} \ | |
| 58 %{shared:-lc} \ | |
| 59 %{!shared:%{profile:-lc_p}%{!profile:-lc}}" | |
| 60 | |
| 111 | 61 #define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc" |
| 0 | 62 |
| 63 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" | |
| 64 | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
65 #define LINUX_TARGET_LINK_SPEC "%{h*} \ |
| 0 | 66 %{static:-Bstatic} \ |
| 67 %{shared:-shared} \ | |
| 68 %{symbolic:-Bsymbolic} \ | |
| 111 | 69 %{!static: \ |
| 70 %{rdynamic:-export-dynamic} \ | |
| 71 %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \ | |
| 0 | 72 -X \ |
| 73 %{mbig-endian:-EB} %{mlittle-endian:-EL}" \ | |
| 74 SUBTARGET_EXTRA_LINK_SPEC | |
| 75 | |
| 76 #undef LINK_SPEC | |
| 77 #define LINK_SPEC LINUX_TARGET_LINK_SPEC | |
| 78 | |
| 79 #define TARGET_OS_CPP_BUILTINS() \ | |
| 80 do \ | |
| 81 { \ | |
| 111 | 82 GNU_USER_TARGET_OS_CPP_BUILTINS(); \ |
| 0 | 83 } \ |
| 84 while (0) | |
| 85 | |
| 86 /* Call the function profiler with a given profile label. */ | |
| 87 #undef ARM_FUNCTION_PROFILER | |
| 88 #define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \ | |
| 89 { \ | |
| 90 fprintf (STREAM, "\tbl\tmcount%s\n", \ | |
| 91 (TARGET_ARM && NEED_PLT_RELOC) ? "(PLT)" : ""); \ | |
| 92 } | |
| 93 | |
| 94 /* The GNU/Linux profiler clobbers the link register. Make sure the | |
| 95 prologue knows to save it. */ | |
| 96 #define PROFILE_HOOK(X) \ | |
| 97 emit_clobber (gen_rtx_REG (SImode, LR_REGNUM)) | |
| 98 | |
| 99 /* The GNU/Linux profiler needs a frame pointer. */ | |
| 100 #define SUBTARGET_FRAME_POINTER_REQUIRED crtl->profile | |
| 101 | |
| 102 /* Add .note.GNU-stack. */ | |
| 103 #undef NEED_INDICATE_EXEC_STACK | |
| 104 #define NEED_INDICATE_EXEC_STACK 1 | |
| 111 | 105 |
| 106 /* Uninitialized common symbols in non-PIE executables, even with | |
| 107 strong definitions in dependent shared libraries, will resolve | |
| 108 to COPY relocated symbol in the executable. See PR65780. */ | |
| 109 #undef TARGET_BINDS_LOCAL_P | |
| 110 #define TARGET_BINDS_LOCAL_P default_binds_local_p_2 | |
| 111 | |
| 112 /* Define this to be nonzero if static stack checking is supported. */ | |
| 113 #define STACK_CHECK_STATIC_BUILTIN 1 |