[thirdparty/gcc.git] / gcc / config / rs6000 / aix51.h

/* Definitions of target machine for GNU compiler,
   for IBM RS/6000 POWER running AIX V5.
   Copyright (C) 2001 Free Software Foundation, Inc.
   Contributed by David Edelsohn (edelsohn@gnu.org).

This file is part of GNU CC.

GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */


/* AIX V5 and above support 64-bit executables.  */
#undef  SUBSUBTARGET_SWITCHES
#define SUBSUBTARGET_SWITCHES					\
  {"aix64", 		MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC,	\
   N_("Compile for 64-bit pointers") },					\
  {"aix32",		- (MASK_64BIT | MASK_POWERPC64),		\
   N_("Compile for 32-bit pointers") },					\
  {"pe",		0,						\
   N_("Support message passing with the Parallel Environment") },

/* Sometimes certain combinations of command options do not make sense
   on a particular target machine.  You can define a macro
   `OVERRIDE_OPTIONS' to take account of this.  This macro, if
   defined, is executed once just after all the command options have
   been parsed.

   The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
   get control.  */

#define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
#define SUBTARGET_OVERRIDE_OPTIONS					\
do {									\
  if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))		\
    {									\
      target_flags &= ~NON_POWERPC_MASKS;				\
      warning ("-maix64 and POWER architecture are incompatible");	\
    }									\
  if (TARGET_64BIT && ! TARGET_POWERPC64)				\
    {									\
      target_flags |= MASK_POWERPC64;					\
      warning ("-maix64 requires PowerPC64 architecture remain enabled"); \
    }									\
  if (TARGET_POWERPC64 && ! TARGET_64BIT)				\
    {									\
      error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
    }									\
} while (0);

#undef ASM_SPEC
#define ASM_SPEC "-u %{maix64:-a64 -mppc64} %(asm_cpu)"

/* Common ASM definitions used by ASM_SPEC amonst the various targets
   for handling -mcpu=xxx switches.  */
#undef ASM_CPU_SPEC
#define ASM_CPU_SPEC \
"%{!mcpu*: %{!maix64: \
  %{mpower: %{!mpower2: -mpwr}} \
  %{mpower2: -mpwr2} \
  %{mpowerpc*: %{!mpowerpc64: -mppc}} \
  %{mpowerpc64: -mppc64} \
  %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
%{mcpu=common: -mcom} \
%{mcpu=power: -mpwr} \
%{mcpu=power2: -mpwr2} \
%{mcpu=power3: -m604} \
%{mcpu=power4: -m604} \
%{mcpu=powerpc: -mppc} \
%{mcpu=rios: -mpwr} \
%{mcpu=rios1: -mpwr} \
%{mcpu=rios2: -mpwr2} \
%{mcpu=rsc: -mpwr} \
%{mcpu=rsc1: -mpwr} \
%{mcpu=rs64a: -mppc} \
%{mcpu=601: -m601} \
%{mcpu=602: -mppc} \
%{mcpu=603: -m603} \
%{mcpu=603e: -m603} \
%{mcpu=604: -m604} \
%{mcpu=604e: -m604} \
%{mcpu=620: -mppc} \
%{mcpu=630: -m604}"

#undef	ASM_DEFAULT_SPEC
#define ASM_DEFAULT_SPEC "-mcom"

#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS()      \
  do                                  \
    {                                 \
      builtin_define ("_IBMR2");      \
      builtin_define ("_POWER");      \
      builtin_define ("_LONG_LONG");  \
      builtin_define ("_AIX");        \
      builtin_define ("_AIX32");      \
      builtin_define ("_AIX41");      \
      builtin_define ("_AIX43");      \
      builtin_define ("_AIX51");      \
      builtin_assert ("system=unix"); \
      builtin_assert ("system=aix");  \
    }                                 \
  while (0)

#undef CPP_SPEC
#define CPP_SPEC "%{posix: -D_POSIX_SOURCE}	\
  %{ansi: -D_ANSI_C_SOURCE}			\
  %{maix64: -D__64BIT__}			\
  %{mpe: -I/usr/lpp/ppe.poe/include}		\
  %{pthread: -D_THREAD_SAFE}"

/* The GNU C++ standard library requires that these macros be 
   defined.  */
#undef CPLUSPLUS_CPP_SPEC                       
#define CPLUSPLUS_CPP_SPEC			\
  "-D_XOPEN_SOURCE=500				\
   -D_XOPEN_SOURCE_EXTENDED=1			\
   -D_LARGE_FILE_API				\
   -D_ALL_SOURCE				\
   %{maix64: -D__64BIT__}			\
   %{mpe: -I/usr/lpp/ppe.poe/include}		\
   %{pthread: -D_THREAD_SAFE}"

#undef TARGET_DEFAULT
#define TARGET_DEFAULT MASK_NEW_MNEMONICS

#undef PROCESSOR_DEFAULT
#define PROCESSOR_DEFAULT PROCESSOR_PPC604e

/* Define this macro as a C expression for the initializer of an
   array of string to tell the driver program which options are
   defaults for this target and thus do not need to be handled
   specially when using `MULTILIB_OPTIONS'.

   Do not define this macro if `MULTILIB_OPTIONS' is not defined in
   the target makefile fragment or if none of the options listed in
   `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */

#undef	MULTILIB_DEFAULTS
#define	MULTILIB_DEFAULTS { "mcpu=common" }

#undef LIB_SPEC
#define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
   %{p:-L/lib/profiled -L/usr/lib/profiled}\
   %{!maix64:%{!shared:%{g*:-lg}}}\
   %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
   %{pthread:-lpthreads} -lc"

#undef LINK_SPEC
#define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
   %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
   %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
   %{mpe:-binitfini:poe_remote_main}"

#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{!shared:\
   %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
   %{!maix64:\
     %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
     %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"

/* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */

#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"

/* Type used for wchar_t, as a string used in a declaration.  */
#undef  WCHAR_TYPE
#define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")

/* Width of wchar_t in bits.  */
#undef  WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
#define MAX_WCHAR_TYPE_SIZE 32

/* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
   and "cror 31,31,31" for POWER architecture.  */

#undef RS6000_CALL_GLUE
#define RS6000_CALL_GLUE "{cror 31,31,31|nop}"

/* AIX 4.2 and above provides initialization and finalization function
   support from linker command line.  */
#undef HAS_INIT_SECTION
#define HAS_INIT_SECTION

#undef LD_INIT_SWITCH
#define LD_INIT_SWITCH "-binitfini"
Commit	Line	Data
05dba9ee DE	1	/* Definitions of target machine for GNU compiler,
	2	for IBM RS/6000 POWER running AIX V5.
	3	Copyright (C) 2001 Free Software Foundation, Inc.
	4	Contributed by David Edelsohn (edelsohn@gnu.org).
	5
	6	This file is part of GNU CC.
	7
	8	GNU CC is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2, or (at your option)
	11	any later version.
	12
	13	GNU CC is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with GNU CC; see the file COPYING. If not, write to
	20	the Free Software Foundation, 59 Temple Place - Suite 330,
	21	Boston, MA 02111-1307, USA. */
	22
	23
05dba9ee DE	24	/* AIX V5 and above support 64-bit executables. */
	25	#undef SUBSUBTARGET_SWITCHES
	26	#define SUBSUBTARGET_SWITCHES \
	27	{"aix64", MASK_64BIT \| MASK_POWERPC64 \| MASK_POWERPC, \
	28	N_("Compile for 64-bit pointers") }, \
	29	{"aix32", - (MASK_64BIT \| MASK_POWERPC64), \
	30	N_("Compile for 32-bit pointers") }, \
	31	{"pe", 0, \
	32	N_("Support message passing with the Parallel Environment") },
	33
	34	/* Sometimes certain combinations of command options do not make sense
	35	on a particular target machine. You can define a macro
	36	`OVERRIDE_OPTIONS' to take account of this. This macro, if
	37	defined, is executed once just after all the command options have
	38	been parsed.
	39
	40	The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
	41	get control. */
	42
09a625f7	43	#define NON_POWERPC_MASKS (MASK_POWER \| MASK_POWER2)
05dba9ee DE	44	#define SUBTARGET_OVERRIDE_OPTIONS \
	45	do { \
	46	if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \
	47	{ \
	48	target_flags &= ~NON_POWERPC_MASKS; \
c725bd79	49	warning ("-maix64 and POWER architecture are incompatible"); \
05dba9ee DE	50	} \
	51	if (TARGET_64BIT && ! TARGET_POWERPC64) \
	52	{ \
	53	target_flags \|= MASK_POWERPC64; \
c725bd79	54	warning ("-maix64 requires PowerPC64 architecture remain enabled"); \
05dba9ee DE	55	} \
	56	if (TARGET_POWERPC64 && ! TARGET_64BIT) \
	57	{ \
c725bd79	58	error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
05dba9ee DE	59	} \
	60	} while (0);
	61
	62	#undef ASM_SPEC
	63	#define ASM_SPEC "-u %{maix64:-a64 -mppc64} %(asm_cpu)"
	64
	65	/* Common ASM definitions used by ASM_SPEC amonst the various targets
	66	for handling -mcpu=xxx switches. */
	67	#undef ASM_CPU_SPEC
	68	#define ASM_CPU_SPEC \
	69	"%{!mcpu*: %{!maix64: \
	70	%{mpower: %{!mpower2: -mpwr}} \
	71	%{mpower2: -mpwr2} \
	72	%{mpowerpc*: %{!mpowerpc64: -mppc}} \
	73	%{mpowerpc64: -mppc64} \
	74	%{!mpower: %{!mpowerpc: %(asm_default)}}}} \
	75	%{mcpu=common: -mcom} \
	76	%{mcpu=power: -mpwr} \
	77	%{mcpu=power2: -mpwr2} \
309323c2 DE	78	%{mcpu=power3: -m604} \
309323c2 DE	79	%{mcpu=power4: -m604} \
05dba9ee DE	80	%{mcpu=powerpc: -mppc} \
	81	%{mcpu=rios: -mpwr} \
	82	%{mcpu=rios1: -mpwr} \
	83	%{mcpu=rios2: -mpwr2} \
	84	%{mcpu=rsc: -mpwr} \
	85	%{mcpu=rsc1: -mpwr} \
	86	%{mcpu=rs64a: -mppc} \
05dba9ee DE	87	%{mcpu=601: -m601} \
	88	%{mcpu=602: -mppc} \
	89	%{mcpu=603: -m603} \
	90	%{mcpu=603e: -m603} \
	91	%{mcpu=604: -m604} \
	92	%{mcpu=604e: -m604} \
	93	%{mcpu=620: -mppc} \
309323c2	94	%{mcpu=630: -m604}"
05dba9ee DE	95
	96	#undef ASM_DEFAULT_SPEC
	97	#define ASM_DEFAULT_SPEC "-mcom"
	98
7990b46f MK	99	#undef TARGET_OS_CPP_BUILTINS
	100	#define TARGET_OS_CPP_BUILTINS() \
	101	do \
	102	{ \
	103	builtin_define ("_IBMR2"); \
	104	builtin_define ("_POWER"); \
	105	builtin_define ("_LONG_LONG"); \
	106	builtin_define ("_AIX"); \
	107	builtin_define ("_AIX32"); \
	108	builtin_define ("_AIX41"); \
	109	builtin_define ("_AIX43"); \
	110	builtin_define ("_AIX51"); \
	111	builtin_assert ("system=unix"); \
	112	builtin_assert ("system=aix"); \
	113	} \
	114	while (0)
05dba9ee DE	115
05dba9ee DE	116	#undef CPP_SPEC
676997cf RH	117	#define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
	118	%{ansi: -D_ANSI_C_SOURCE} \
	119	%{maix64: -D__64BIT__} \
	120	%{mpe: -I/usr/lpp/ppe.poe/include} \
4c4eb375	121	%{pthread: -D_THREAD_SAFE}"
05dba9ee	122
7841642f DE	123	/* The GNU C++ standard library requires that these macros be
	124	defined. */
	125	#undef CPLUSPLUS_CPP_SPEC
676997cf RH	126	#define CPLUSPLUS_CPP_SPEC \
	127	"-D_XOPEN_SOURCE=500 \
	128	-D_XOPEN_SOURCE_EXTENDED=1 \
	129	-D_LARGE_FILE_API \
	130	-D_ALL_SOURCE \
	131	%{maix64: -D__64BIT__} \
	132	%{mpe: -I/usr/lpp/ppe.poe/include} \
4c4eb375	133	%{pthread: -D_THREAD_SAFE}"
05dba9ee DE	134
	135	#undef TARGET_DEFAULT
	136	#define TARGET_DEFAULT MASK_NEW_MNEMONICS
	137
	138	#undef PROCESSOR_DEFAULT
309323c2	139	#define PROCESSOR_DEFAULT PROCESSOR_PPC604e
05dba9ee DE	140
	141	/* Define this macro as a C expression for the initializer of an
	142	array of string to tell the driver program which options are
	143	defaults for this target and thus do not need to be handled
	144	specially when using `MULTILIB_OPTIONS'.
	145
	146	Do not define this macro if `MULTILIB_OPTIONS' is not defined in
	147	the target makefile fragment or if none of the options listed in
	148	`MULTILIB_OPTIONS' are set by default. Note Target Fragment::. /
	149
	150	#undef MULTILIB_DEFAULTS
	151	#define MULTILIB_DEFAULTS { "mcpu=common" }
	152
	153	#undef LIB_SPEC
	154	#define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
	155	%{p:-L/lib/profiled -L/usr/lib/profiled}\
	156	%{!maix64:%{!shared:%{g*:-lg}}}\
	157	%{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
	158	%{pthread:-lpthreads} -lc"
	159
	160	#undef LINK_SPEC
	161	#define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
	162	%{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
cbaaba19 DE	163	%{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
cbaaba19 DE	164	%{mpe:-binitfini:poe_remote_main}"
05dba9ee DE	165
	166	#undef STARTFILE_SPEC
	167	#define STARTFILE_SPEC "%{!shared:\
cbaaba19 DE	168	%{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
	169	%{!maix64:\
	170	%{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
	171	%{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
05dba9ee DE	172
	173	/* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
	174
	175	#undef PTRDIFF_TYPE
	176	#define PTRDIFF_TYPE "long int"
	177
7032923b DE	178	/* Type used for wchar_t, as a string used in a declaration. */
	179	#undef WCHAR_TYPE
	180	#define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
05dba9ee DE	181
05dba9ee DE	182	/* Width of wchar_t in bits. */
7032923b	183	#undef WCHAR_TYPE_SIZE
05dba9ee DE	184	#define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
	185	#define MAX_WCHAR_TYPE_SIZE 32
	186
	187	/* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
	188	and "cror 31,31,31" for POWER architecture. */
	189
	190	#undef RS6000_CALL_GLUE
	191	#define RS6000_CALL_GLUE "{cror 31,31,31\|nop}"
	192
	193	/* AIX 4.2 and above provides initialization and finalization function
	194	support from linker command line. */
	195	#undef HAS_INIT_SECTION
	196	#define HAS_INIT_SECTION
	197
	198	#undef LD_INIT_SWITCH
	199	#define LD_INIT_SWITCH "-binitfini"