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/* Definitions of target machine for GNU compiler,
for IBM RS/6000 POWER running AIX V5.2.
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
Contributed by David Edelsohn (edelsohn@gnu.org).
This file is part of GCC.
GCC 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 3, or (at your
option) any later version.
GCC 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 GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* 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 (0, "-maix64 and POWER architecture are incompatible"); \
} \
if (TARGET_64BIT && ! TARGET_POWERPC64) \
{ \
target_flags |= MASK_POWERPC64; \
warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
} \
if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \
{ \
rs6000_long_double_type_size = 64; \
if (rs6000_explicit_options.long_double) \
warning (0, "soft-float and long-double-128 are incompatible"); \
} \
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 %{!mcpu*:-mppc64}} %(asm_cpu)"
/* Common ASM definitions used by ASM_SPEC amongst the various targets
for handling -mcpu=xxx switches. */
#undef ASM_CPU_SPEC
#define ASM_CPU_SPEC \
"%{!mcpu*: %{!maix64: \
%{mpowerpc64: -mppc64} \
%{!mpower64: %(asm_default)}}} \
%{mcpu=power3: -m620} \
%{mcpu=power4: -m620} \
%{mcpu=power5: -m620} \
%{mcpu=power5+: -m620} \
%{mcpu=power6: -m620} \
%{mcpu=power6x: -m620} \
%{mcpu=powerpc: -mppc} \
%{mcpu=rs64a: -mppc} \
%{mcpu=603: -m603} \
%{mcpu=603e: -m603} \
%{mcpu=604: -m604} \
%{mcpu=604e: -m604} \
%{mcpu=620: -m620} \
%{mcpu=630: -m620} \
%{mcpu=970: -m620} \
%{mcpu=G5: -m620}"
#undef ASM_DEFAULT_SPEC
#define ASM_DEFAULT_SPEC "-mppc"
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
builtin_define ("_AIX43"); \
builtin_define ("_AIX51"); \
builtin_define ("_AIX52"); \
TARGET_OS_AIX_CPP_BUILTINS (); \
} \
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. Synchronize with libstdc++ os_defines.h. */
#undef CPLUSPLUS_CPP_SPEC
#define CPLUSPLUS_CPP_SPEC \
"-D_ALL_SOURCE \
%{maix64: -D__64BIT__} \
%{mpe: -I/usr/lpp/ppe.poe/include} \
%{pthread: -D_THREAD_SAFE}"
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
#undef PROCESSOR_DEFAULT
#define PROCESSOR_DEFAULT PROCESSOR_POWER4
#undef PROCESSOR_DEFAULT64
#define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
#undef TARGET_POWER
#define TARGET_POWER 0
/* AIX does not support Altivec. */
#undef TARGET_ALTIVEC
#define TARGET_ALTIVEC 0
#undef TARGET_ALTIVEC_ABI
#define TARGET_ALTIVEC_ABI 0
/* 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
#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)
/* 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"
/* AIX 5.2 has the float and long double forms of math functions. */
#undef TARGET_C99_FUNCTIONS
#define TARGET_C99_FUNCTIONS 1
#ifndef _AIX52
extern long long int atoll(const char *);
#endif
/* This target uses the aix64.opt file. */
#define TARGET_USES_AIX64_OPT 1
/* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
but does not have crtbegin/end. */
#define TARGET_USE_JCR_SECTION 0
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