2009-07-17 Richard Guenther <rguenther@suse.de>
[official-gcc.git] / gcc / config / rs6000 / aix52.h
blob8d6c241162196dd5b842232efaf16fdeb6588c8d
1 /* Definitions of target machine for GNU compiler,
2 for IBM RS/6000 POWER running AIX V5.2.
3 Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
5 Contributed by David Edelsohn (edelsohn@gnu.org).
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published
11 by the Free Software Foundation; either version 3, or (at your
12 option) any later version.
14 GCC is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
17 License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 /* Sometimes certain combinations of command options do not make sense
24 on a particular target machine. You can define a macro
25 `OVERRIDE_OPTIONS' to take account of this. This macro, if
26 defined, is executed once just after all the command options have
27 been parsed.
29 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
30 get control. */
32 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
33 #define SUBTARGET_OVERRIDE_OPTIONS \
34 do { \
35 if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \
36 { \
37 target_flags &= ~NON_POWERPC_MASKS; \
38 warning (0, "-maix64 and POWER architecture are incompatible"); \
39 } \
40 if (TARGET_64BIT && ! TARGET_POWERPC64) \
41 { \
42 target_flags |= MASK_POWERPC64; \
43 warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
44 } \
45 if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \
46 { \
47 rs6000_long_double_type_size = 64; \
48 if (rs6000_explicit_options.long_double) \
49 warning (0, "soft-float and long-double-128 are incompatible"); \
50 } \
51 if (TARGET_POWERPC64 && ! TARGET_64BIT) \
52 { \
53 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
54 } \
55 } while (0);
57 #undef ASM_SPEC
58 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
60 /* Common ASM definitions used by ASM_SPEC amongst the various targets
61 for handling -mcpu=xxx switches. */
62 #undef ASM_CPU_SPEC
63 #define ASM_CPU_SPEC \
64 "%{!mcpu*: %{!maix64: \
65 %{mpowerpc64: -mppc64} \
66 %{!mpower64: %(asm_default)}}} \
67 %{mcpu=power3: -m620} \
68 %{mcpu=power4: -m620} \
69 %{mcpu=power5: -m620} \
70 %{mcpu=power5+: -m620} \
71 %{mcpu=power6: -m620} \
72 %{mcpu=power6x: -m620} \
73 %{mcpu=powerpc: -mppc} \
74 %{mcpu=rs64a: -mppc} \
75 %{mcpu=603: -m603} \
76 %{mcpu=603e: -m603} \
77 %{mcpu=604: -m604} \
78 %{mcpu=604e: -m604} \
79 %{mcpu=620: -m620} \
80 %{mcpu=630: -m620} \
81 %{mcpu=970: -m620} \
82 %{mcpu=G5: -m620}"
84 #undef ASM_DEFAULT_SPEC
85 #define ASM_DEFAULT_SPEC "-mppc"
87 #undef TARGET_OS_CPP_BUILTINS
88 #define TARGET_OS_CPP_BUILTINS() \
89 do \
90 { \
91 builtin_define ("_AIX43"); \
92 builtin_define ("_AIX51"); \
93 builtin_define ("_AIX52"); \
94 TARGET_OS_AIX_CPP_BUILTINS (); \
95 } \
96 while (0)
98 #undef CPP_SPEC
99 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
100 %{ansi: -D_ANSI_C_SOURCE} \
101 %{maix64: -D__64BIT__} \
102 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
103 %{pthread: -D_THREAD_SAFE}"
105 /* The GNU C++ standard library requires that these macros be
106 defined. Synchronize with libstdc++ os_defines.h. */
107 #undef CPLUSPLUS_CPP_SPEC
108 #define CPLUSPLUS_CPP_SPEC \
109 "-D_ALL_SOURCE \
110 %{maix64: -D__64BIT__} \
111 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
112 %{pthread: -D_THREAD_SAFE}"
114 #undef TARGET_DEFAULT
115 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
117 #undef PROCESSOR_DEFAULT
118 #define PROCESSOR_DEFAULT PROCESSOR_POWER4
119 #undef PROCESSOR_DEFAULT64
120 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
122 #undef TARGET_POWER
123 #define TARGET_POWER 0
125 /* AIX does not support Altivec. */
126 #undef TARGET_ALTIVEC
127 #define TARGET_ALTIVEC 0
128 #undef TARGET_ALTIVEC_ABI
129 #define TARGET_ALTIVEC_ABI 0
131 /* Define this macro as a C expression for the initializer of an
132 array of string to tell the driver program which options are
133 defaults for this target and thus do not need to be handled
134 specially when using `MULTILIB_OPTIONS'.
136 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
137 the target makefile fragment or if none of the options listed in
138 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
140 #undef MULTILIB_DEFAULTS
142 #undef LIB_SPEC
143 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
144 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
145 %{!maix64:%{!shared:%{g*:-lg}}}\
146 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
147 %{pthread:-lpthreads} -lc"
149 #undef LINK_SPEC
150 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
151 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
152 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
153 %{mpe:-binitfini:poe_remote_main}"
155 #undef STARTFILE_SPEC
156 #define STARTFILE_SPEC "%{!shared:\
157 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
158 %{!maix64:\
159 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
160 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
162 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
164 #undef PTRDIFF_TYPE
165 #define PTRDIFF_TYPE "long int"
167 /* Type used for wchar_t, as a string used in a declaration. */
168 #undef WCHAR_TYPE
169 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
171 /* Width of wchar_t in bits. */
172 #undef WCHAR_TYPE_SIZE
173 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
175 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
176 and "cror 31,31,31" for POWER architecture. */
178 #undef RS6000_CALL_GLUE
179 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
181 /* AIX 4.2 and above provides initialization and finalization function
182 support from linker command line. */
183 #undef HAS_INIT_SECTION
184 #define HAS_INIT_SECTION
186 #undef LD_INIT_SWITCH
187 #define LD_INIT_SWITCH "-binitfini"
189 /* AIX 5.2 has the float and long double forms of math functions. */
190 #undef TARGET_C99_FUNCTIONS
191 #define TARGET_C99_FUNCTIONS 1
193 #ifndef _AIX52
194 extern long long int atoll(const char *);
195 #endif
197 /* This target uses the aix64.opt file. */
198 #define TARGET_USES_AIX64_OPT 1
200 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
201 but does not have crtbegin/end. */
203 #define TARGET_USE_JCR_SECTION 0
205 #define TARGET_AIX_VERSION 52