1 /* Definitions of target machine for GNU compiler,
2    for IBM RS/6000 POWER running AIX version 4.3.
3    Copyright (C) 1998-2018 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_SOFT_FLOAT && TARGET_LONG_DOUBLE_128)			\
33     {									\
34       rs6000_long_double_type_size = 64;				\
35       if (global_options_set.x_rs6000_long_double_type_size)		\
36 	warning (0, "soft-float and long-double-128 are incompatible");	\
37     }									\
38   if (TARGET_POWERPC64 && ! TARGET_64BIT)				\
39     {									\
40       error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
41     }									\
42 } while (0)
43 
44 #undef ASM_SPEC
45 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
46 
47 /* Common ASM definitions used by ASM_SPEC amongst the various targets
48    for handling -mcpu=xxx switches.  */
49 #undef ASM_CPU_SPEC
50 #define ASM_CPU_SPEC \
51 "%{!mcpu*: %{!maix64: \
52   %{!mpowerpc64: %(asm_default)} \
53   %{mpowerpc64: -mppc64}}} \
54 %{mcpu=power3: -m620} \
55 %{mcpu=power4: -m620} \
56 %{mcpu=powerpc: -mppc} \
57 %{mcpu=rs64a: -mppc} \
58 %{mcpu=601: -m601} \
59 %{mcpu=602: -mppc} \
60 %{mcpu=603: -m603} \
61 %{mcpu=603e: -m603} \
62 %{mcpu=604: -m604} \
63 %{mcpu=604e: -m604} \
64 %{mcpu=620: -m620} \
65 %{mcpu=630: -m620}"
66 
67 #undef	ASM_DEFAULT_SPEC
68 #define ASM_DEFAULT_SPEC "-mppc"
69 
70 #undef TARGET_OS_CPP_BUILTINS
71 #define TARGET_OS_CPP_BUILTINS()     \
72   do                                 \
73     {                                \
74       builtin_define ("_AIX43");     \
75       TARGET_OS_AIX_CPP_BUILTINS (); \
76     }                                \
77   while (0)
78 
79 #undef CPP_SPEC
80 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
81    %{ansi: -D_ANSI_C_SOURCE}\
82    %{maix64: -D__64BIT__}\
83    %{mpe: -I%R/usr/lpp/ppe.poe/include}\
84    %{pthread: -D_THREAD_SAFE}"
85 
86 /* The GNU C++ standard library requires that these macros be
87    defined.  */
88 #undef CPLUSPLUS_CPP_SPEC
89 #define CPLUSPLUS_CPP_SPEC			\
90   "-D_ALL_SOURCE				\
91    %{maix64: -D__64BIT__}			\
92    %{mpe: -I%R/usr/lpp/ppe.poe/include}		\
93    %{pthread: -D_THREAD_SAFE}"
94 
95 #undef TARGET_DEFAULT
96 #define TARGET_DEFAULT 0
97 
98 #undef PROCESSOR_DEFAULT
99 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
100 
101 /* AIX does not support Altivec.  */
102 #undef  TARGET_ALTIVEC
103 #define TARGET_ALTIVEC 0
104 #undef  TARGET_ALTIVEC_ABI
105 #define TARGET_ALTIVEC_ABI 0
106 #undef  TARGET_EXTRA_BUILTINS
107 #define TARGET_EXTRA_BUILTINS 0
108 
109 
110 /* Define this macro as a C expression for the initializer of an
111    array of string to tell the driver program which options are
112    defaults for this target and thus do not need to be handled
113    specially when using `MULTILIB_OPTIONS'.
114 
115    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
116    the target makefile fragment or if none of the options listed in
117    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
118 
119 #undef	MULTILIB_DEFAULTS
120 #define	MULTILIB_DEFAULTS { "mcpu=common" }
121 
122 #undef LIB_SPEC
123 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
124    %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
125    %{!maix64:%{!shared:%{g*:-lg}}}\
126    %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
127    %{pthread:-L%R/usr/lib/threads -lpthreads -lc_r %R/usr/lib/libc.a}\
128    %{!pthread:-lc}"
129 
130 #undef LINK_SPEC
131 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
132    %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
133    %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
134    %{mpe:-binitfini:poe_remote_main}"
135 
136 #undef STARTFILE_SPEC
137 #define STARTFILE_SPEC "%{!shared:\
138    %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
139    %{!maix64:\
140      %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
141      %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
142 
143 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
144 
145 #undef PTRDIFF_TYPE
146 #define PTRDIFF_TYPE "long int"
147 
148 /* AIX 4.2 and above provides initialization and finalization function
149    support from linker command line.  */
150 #undef HAS_INIT_SECTION
151 #define HAS_INIT_SECTION
152 
153 #undef LD_INIT_SWITCH
154 #define LD_INIT_SWITCH "-binitfini"
155 
156 /* The IBM AIX 4.x assembler doesn't support forward references in
157    .set directives.  We handle this by deferring the output of .set
158    directives to the end of the compilation unit.  */
159 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true
160 
161 /* This target uses the aix64.opt file.  */
162 #define TARGET_USES_AIX64_OPT 1
163 
164 #define TARGET_AIX_VERSION 43
165 
166 #undef TARGET_LIBC_HAS_FUNCTION
167 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
168