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1 /* Definitions of target support for Altera Nios II systems
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2 running GNU/Linux with ELF format.
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3 Copyright (C) 2012-2017 Free Software Foundation, Inc.
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4 Contributed by Mentor Graphics, 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
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9 under the terms of the GNU General Public License as published
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10 by the Free Software Foundation; either version 3, or (at your
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11 option) any later version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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16 License 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() \
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23 do \
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24 { \
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25 GNU_USER_TARGET_OS_CPP_BUILTINS(); \
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26 } \
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27 while (0)
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28
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29 #undef CPP_SPEC
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30 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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31
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32 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-nios2.so.1"
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33
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34 #undef LINK_SPEC
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35 #define LINK_SPEC LINK_SPEC_ENDIAN \
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36 "%{shared:-shared} \
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37 %{!shared: \
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38 %{!static: \
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39 %{rdynamic:-export-dynamic} \
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40 -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
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41 %{static:-static}}"
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42
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43 /* This toolchain implements the ABI for Linux Systems documented in the
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44 Nios II Processor Reference Handbook. */
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45 #define TARGET_LINUX_ABI 1
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46
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47 /* For Linux, we have access to kernel support for atomic operations,
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48 add initialization for __sync_* builtins. */
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49 #undef TARGET_INIT_LIBFUNCS
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50 #define TARGET_INIT_LIBFUNCS nios2_init_libfuncs
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