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annotate gcc/config/xtensa/linux.h @ 67:f6334be47118

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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
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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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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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3 Copyright (C) 2001, 2002, 2003, 2006, 2007, 2008, 2010, 2011
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4 Free Software Foundation, Inc.
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it under
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9 the terms of the GNU General Public License as published by the Free
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10 Software Foundation; either version 3, or (at your option) any later
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11 version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
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23
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24 #undef SUBTARGET_CPP_SPEC
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25 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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27 #undef TARGET_VERSION
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28 #define TARGET_VERSION fputs (" (Xtensa GNU/Linux with ELF)", stderr);
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30 #undef SIZE_TYPE
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31 #define SIZE_TYPE "unsigned int"
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33 #undef PTRDIFF_TYPE
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34 #define PTRDIFF_TYPE "int"
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35
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36 #undef WCHAR_TYPE
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37 #define WCHAR_TYPE "long int"
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39 #undef WCHAR_TYPE_SIZE
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40 #define WCHAR_TYPE_SIZE 32
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41
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42 #undef ASM_SPEC
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43 #define ASM_SPEC \
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44 "%{mtext-section-literals:--text-section-literals} \
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45 %{mno-text-section-literals:--no-text-section-literals} \
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46 %{mtarget-align:--target-align} \
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47 %{mno-target-align:--no-target-align} \
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48 %{mlongcalls:--longcalls} \
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49 %{mno-longcalls:--no-longcalls}"
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51 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
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53 #undef LINK_SPEC
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54 #define LINK_SPEC \
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55 "%{shared:-shared} \
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56 %{!shared: \
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57 %{!static: \
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58 %{rdynamic:-export-dynamic} \
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59 -dynamic-linker " LINUX_DYNAMIC_LINKER "} \
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60 %{static:-static}}"
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62 #undef LOCAL_LABEL_PREFIX
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63 #define LOCAL_LABEL_PREFIX "."
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65 /* Always enable "-fpic" for Xtensa Linux. */
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66 #define XTENSA_ALWAYS_PIC 1
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68 #undef DBX_REGISTER_NUMBER
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70 #define MD_UNWIND_SUPPORT "config/xtensa/linux-unwind.h"
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