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1 /* Definitions of target machine for GNU compiler,
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2 for IBM RS/6000 POWER running AIX version 4.1.
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3 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004,
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4 2005, 2007
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5 Free Software Foundation, Inc.
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6 Contributed by David Edelsohn (edelsohn@gnu.org).
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7
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8 This file is part of GCC.
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9
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10 GCC is free software; you can redistribute it and/or modify it
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11 under the terms of the GNU General Public License as published
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12 by the Free Software Foundation; either version 3, or (at your
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13 option) any later version.
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14
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15 GCC is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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17 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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18 License for more details.
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19
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20 You should have received a copy of the GNU General Public License
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21 along with GCC; see the file COPYING3. If not see
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22 <http://www.gnu.org/licenses/>. */
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23
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24 #undef ASM_SPEC
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25 #define ASM_SPEC "-u %(asm_cpu)"
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26
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27 #undef ASM_DEFAULT_SPEC
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28 #define ASM_DEFAULT_SPEC "-mcom"
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29
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30 #undef TARGET_OS_CPP_BUILTINS
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31 #define TARGET_OS_CPP_BUILTINS() \
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32 do \
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33 { \
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34 TARGET_OS_AIX_CPP_BUILTINS (); \
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35 } \
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36 while (0)
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37
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38 #undef CPP_SPEC
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39 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
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40 %{ansi: -D_ANSI_C_SOURCE}\
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41 %{mpe: -I/usr/lpp/ppe.poe/include}\
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42 %{pthread: -D_THREAD_SAFE}"
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43
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44 #undef TARGET_DEFAULT
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45 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
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46
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47 #undef PROCESSOR_DEFAULT
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48 #define PROCESSOR_DEFAULT PROCESSOR_PPC601
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49
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50 /* AIX does not support Altivec. */
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51 #undef TARGET_ALTIVEC
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52 #define TARGET_ALTIVEC 0
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53 #undef TARGET_ALTIVEC_ABI
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54 #define TARGET_ALTIVEC_ABI 0
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55
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56 /* Define this macro as a C expression for the initializer of an
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57 array of string to tell the driver program which options are
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58 defaults for this target and thus do not need to be handled
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59 specially when using `MULTILIB_OPTIONS'.
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60
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61 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
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62 the target makefile fragment or if none of the options listed in
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63 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
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64
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65 #undef MULTILIB_DEFAULTS
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66 #define MULTILIB_DEFAULTS { "mcpu=common" }
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67
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68 #undef LIB_SPEC
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69 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
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70 %{p:-L/lib/profiled -L/usr/lib/profiled} %{!shared:%{g*:-lg}}\
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71 %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
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72 %{pthread: -L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\
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73 %{!pthread: -lc}"
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74
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75 #undef LINK_SPEC
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76 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
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77 %{static:-bnso %(link_syscalls) } %{!shared: %{g*: %(link_libg) }}\
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78 %{shared:-bM:SRE %{!e:-bnoentry}}"
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79
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80 #undef STARTFILE_SPEC
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81 #define STARTFILE_SPEC "%{!shared:\
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82 %{mpe:%{pg:/usr/lpp/ppe.poe/lib/gcrt0.o}\
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83 %{!pg:%{p:/usr/lpp/ppe.poe/lib/mcrt0.o}\
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84 %{!p:/usr/lpp/ppe.poe/lib/crt0.o}}}\
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85 %{!mpe:\
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86 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
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87 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
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88
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89 /* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
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90 and "cror 31,31,31" for POWER architecture. */
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91
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92 #undef RS6000_CALL_GLUE
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93 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
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94
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95 /* The IBM AIX 4.x assembler doesn't support forward references in
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96 .set directives. We handle this by deferring the output of .set
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97 directives to the end of the compilation unit. */
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98 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true
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99
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100 #undef TARGET_64BIT
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101 #define TARGET_64BIT 0
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