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annotate gcc/config/xtensa/linux.h @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
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1 /* Xtensa Linux configuration.
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2 Derived from the configuration for GCC for Intel i386 running Linux.
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3 Copyright (C) 2001-2020 Free Software Foundation, Inc.
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #define TARGET_OS_CPP_BUILTINS() GNU_USER_TARGET_OS_CPP_BUILTINS()
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23 #undef SUBTARGET_CPP_SPEC
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24 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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26 #undef SIZE_TYPE
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27 #define SIZE_TYPE "unsigned int"
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29 #undef PTRDIFF_TYPE
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30 #define PTRDIFF_TYPE "int"
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32 #undef WCHAR_TYPE
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33 #define WCHAR_TYPE "long int"
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35 #undef WCHAR_TYPE_SIZE
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36 #define WCHAR_TYPE_SIZE 32
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38 #undef ASM_SPEC
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39 #define ASM_SPEC \
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40 "%{mtext-section-literals:--text-section-literals} \
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41 %{mno-text-section-literals:--no-text-section-literals} \
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42 %{mtarget-align:--target-align} \
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43 %{mno-target-align:--no-target-align} \
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44 %{mlongcalls:--longcalls} \
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45 %{mno-longcalls:--no-longcalls} \
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46 %{mauto-litpools:--auto-litpools} \
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47 %{mno-auto-litpools:--no-auto-litpools}"
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49 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
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51 #undef LINK_SPEC
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52 #define LINK_SPEC \
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53 "%{shared:-shared} \
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54 %{!shared: \
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55 %{!static: \
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56 %{rdynamic:-export-dynamic} \
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57 -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
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58 %{static:-static}}"
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60 #undef LOCAL_LABEL_PREFIX
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61 #define LOCAL_LABEL_PREFIX "."
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63 /* Always enable "-fpic" for Xtensa Linux. */
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64 #define XTENSA_ALWAYS_PIC 1
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66 #undef DBX_REGISTER_NUMBER
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