1 /* Definitions of target machine for GNU compiler,
2    for IBM RS/6000 POWER running AIX V5.
3    Copyright (C) 2001-2014 Free Software Foundation, Inc.
4    Contributed by David Edelsohn (edelsohn@gnu.org).
5 
6    This file is part of GCC.
7 
8    GCC is free software; you can redistribute it and/or modify it
9    under the terms of the GNU General Public License as published
10    by the Free Software Foundation; either version 3, or (at your
11    option) any later version.
12 
13    GCC is distributed in the hope that it will be useful, but WITHOUT
14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
16    License for more details.
17 
18    You should have received a copy of the GNU General Public License
19    along with GCC; see the file COPYING3.  If not see
20    <http://www.gnu.org/licenses/>.  */
21 
22 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
23    get control in TARGET_OPTION_OVERRIDE.  */
24 
25 #define SUBTARGET_OVERRIDE_OPTIONS					\
26 do {									\
27   if (TARGET_64BIT && ! TARGET_POWERPC64)				\
28     {									\
29       rs6000_isa_flags |= OPTION_MASK_POWERPC64;			\
30       warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
31     }									\
32   if (TARGET_POWERPC64 && ! TARGET_64BIT)				\
33     {									\
34       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
35     }									\
36 } while (0);
37 
38 #undef ASM_SPEC
39 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
40 
41 /* Common ASM definitions used by ASM_SPEC amongst the various targets
42    for handling -mcpu=xxx switches.  */
43 #undef ASM_CPU_SPEC
44 #define ASM_CPU_SPEC \
45 "%{!mcpu*: %{!maix64: \
46   %{!mpowerpc64: %(asm_default)} \
47   %{mpowerpc64: -mppc64}}} \
48 %{mcpu=power3: -m620} \
49 %{mcpu=power4: -m620} \
50 %{mcpu=powerpc: -mppc} \
51 %{mcpu=rs64a: -mppc} \
52 %{mcpu=601: -m601} \
53 %{mcpu=602: -mppc} \
54 %{mcpu=603: -m603} \
55 %{mcpu=603e: -m603} \
56 %{mcpu=604: -m604} \
57 %{mcpu=604e: -m604} \
58 %{mcpu=620: -m620} \
59 %{mcpu=630: -m620} \
60 %{mcpu=970: -m620} \
61 %{mcpu=G5: -m620}"
62 
63 #undef	ASM_DEFAULT_SPEC
64 #define ASM_DEFAULT_SPEC "-mppc"
65 
66 #undef TARGET_OS_CPP_BUILTINS
67 #define TARGET_OS_CPP_BUILTINS()     \
68   do                                 \
69     {                                \
70       builtin_define ("_AIX43");     \
71       builtin_define ("_AIX51");     \
72       TARGET_OS_AIX_CPP_BUILTINS (); \
73     }                                \
74   while (0)
75 
76 #undef CPP_SPEC
77 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}	\
78   %{ansi: -D_ANSI_C_SOURCE}			\
79   %{maix64: -D__64BIT__}			\
80   %{mpe: -I%R/usr/lpp/ppe.poe/include}		\
81   %{pthread: -D_THREAD_SAFE}"
82 
83 /* The GNU C++ standard library requires that these macros be
84    defined.  */
85 #undef CPLUSPLUS_CPP_SPEC
86 #define CPLUSPLUS_CPP_SPEC			\
87   "-D_ALL_SOURCE				\
88    %{maix64: -D__64BIT__}			\
89    %{mpe: -I%R/usr/lpp/ppe.poe/include}		\
90    %{pthread: -D_THREAD_SAFE}"
91 
92 #undef TARGET_DEFAULT
93 #define TARGET_DEFAULT 0
94 
95 #undef PROCESSOR_DEFAULT
96 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
97 
98 /* AIX does not support Altivec.  */
99 #undef  TARGET_ALTIVEC
100 #define TARGET_ALTIVEC 0
101 #undef  TARGET_ALTIVEC_ABI
102 #define TARGET_ALTIVEC_ABI 0
103 
104 /* Define this macro as a C expression for the initializer of an
105    array of string to tell the driver program which options are
106    defaults for this target and thus do not need to be handled
107    specially when using `MULTILIB_OPTIONS'.
108 
109    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
110    the target makefile fragment or if none of the options listed in
111    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
112 
113 #undef	MULTILIB_DEFAULTS
114 #define	MULTILIB_DEFAULTS { "mcpu=common" }
115 
116 #undef LIB_SPEC
117 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
118    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
119    %{!maix64:%{!shared:%{g*:-lg}}}\
120    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
121    %{pthread:-lpthreads} -lc"
122 
123 #undef LINK_SPEC
124 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
125    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
126    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
127    %{mpe:-binitfini:poe_remote_main}"
128 
129 #undef STARTFILE_SPEC
130 #define STARTFILE_SPEC "%{!shared:\
131    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
132    %{!maix64:\
133      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
134      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
135 
136 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
137 
138 #undef PTRDIFF_TYPE
139 #define PTRDIFF_TYPE "long int"
140 
141 /* Type used for wchar_t, as a string used in a declaration.  */
142 #undef  WCHAR_TYPE
143 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
144 
145 /* Width of wchar_t in bits.  */
146 #undef  WCHAR_TYPE_SIZE
147 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
148 
149 /* AIX 4.2 and above provides initialization and finalization function
150    support from linker command line.  */
151 #undef HAS_INIT_SECTION
152 #define HAS_INIT_SECTION
153 
154 #undef LD_INIT_SWITCH
155 #define LD_INIT_SWITCH "-binitfini"
156 
157 /* This target uses the aix64.opt file.  */
158 #define TARGET_USES_AIX64_OPT 1
159 
160 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
161    but does not have crtbegin/end.  */
162 
163 #define TARGET_USE_JCR_SECTION 0
164 
165 #define TARGET_AIX_VERSION 51
166 
167 #undef TARGET_LIBC_HAS_FUNCTION
168 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
169