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jeremybenn |
/* Definitions of target machine for GNU compiler,
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for IBM RS/6000 POWER running AIX V5.
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Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008
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Free Software Foundation, Inc.
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Contributed by David Edelsohn (edelsohn@gnu.org).
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* Sometimes certain combinations of command options do not make sense
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on a particular target machine. You can define a macro
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`OVERRIDE_OPTIONS' to take account of this. This macro, if
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defined, is executed once just after all the command options have
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been parsed.
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The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
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get control. */
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#define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
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#define SUBTARGET_OVERRIDE_OPTIONS \
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do { \
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if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \
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{ \
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target_flags &= ~NON_POWERPC_MASKS; \
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warning (0, "-maix64 and POWER architecture are incompatible"); \
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} \
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if (TARGET_64BIT && ! TARGET_POWERPC64) \
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{ \
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target_flags |= MASK_POWERPC64; \
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warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
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} \
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if (TARGET_POWERPC64 && ! TARGET_64BIT) \
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{ \
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error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
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} \
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} while (0);
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#undef ASM_SPEC
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#define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
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/* Common ASM definitions used by ASM_SPEC amongst the various targets
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for handling -mcpu=xxx switches. */
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#undef ASM_CPU_SPEC
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#define ASM_CPU_SPEC \
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"%{!mcpu*: %{!maix64: \
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%{mpower: %{!mpower2: -mpwr}} \
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%{mpower2: -mpwr2} \
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%{mpowerpc*: %{!mpowerpc64: -mppc}} \
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%{mpowerpc64: -mppc64} \
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%{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
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%{mcpu=common: -mcom} \
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%{mcpu=power: -mpwr} \
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%{mcpu=power2: -mpwr2} \
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%{mcpu=power3: -m620} \
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%{mcpu=power4: -m620} \
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%{mcpu=powerpc: -mppc} \
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%{mcpu=rios: -mpwr} \
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%{mcpu=rios1: -mpwr} \
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%{mcpu=rios2: -mpwr2} \
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%{mcpu=rsc: -mpwr} \
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%{mcpu=rsc1: -mpwr} \
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%{mcpu=rs64a: -mppc} \
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%{mcpu=601: -m601} \
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%{mcpu=602: -mppc} \
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%{mcpu=603: -m603} \
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%{mcpu=603e: -m603} \
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%{mcpu=604: -m604} \
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%{mcpu=604e: -m604} \
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%{mcpu=620: -m620} \
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%{mcpu=630: -m620} \
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%{mcpu=970: -m620} \
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%{mcpu=G5: -m620}"
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#undef ASM_DEFAULT_SPEC
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#define ASM_DEFAULT_SPEC "-mcom"
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#undef TARGET_OS_CPP_BUILTINS
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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builtin_define ("_AIX43"); \
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builtin_define ("_AIX51"); \
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TARGET_OS_AIX_CPP_BUILTINS (); \
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} \
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while (0)
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#undef CPP_SPEC
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#define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
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%{ansi: -D_ANSI_C_SOURCE} \
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%{maix64: -D__64BIT__} \
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%{mpe: -I%R/usr/lpp/ppe.poe/include} \
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%{pthread: -D_THREAD_SAFE}"
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/* The GNU C++ standard library requires that these macros be
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defined. */
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#undef CPLUSPLUS_CPP_SPEC
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#define CPLUSPLUS_CPP_SPEC \
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"-D_ALL_SOURCE \
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%{maix64: -D__64BIT__} \
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%{mpe: -I%R/usr/lpp/ppe.poe/include} \
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%{pthread: -D_THREAD_SAFE}"
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT MASK_NEW_MNEMONICS
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#undef PROCESSOR_DEFAULT
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#define PROCESSOR_DEFAULT PROCESSOR_PPC604e
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/* AIX does not support Altivec. */
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#undef TARGET_ALTIVEC
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#define TARGET_ALTIVEC 0
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#undef TARGET_ALTIVEC_ABI
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#define TARGET_ALTIVEC_ABI 0
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/* Define this macro as a C expression for the initializer of an
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array of string to tell the driver program which options are
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defaults for this target and thus do not need to be handled
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specially when using `MULTILIB_OPTIONS'.
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Do not define this macro if `MULTILIB_OPTIONS' is not defined in
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the target makefile fragment or if none of the options listed in
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`MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
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#undef MULTILIB_DEFAULTS
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#define MULTILIB_DEFAULTS { "mcpu=common" }
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#undef LIB_SPEC
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#define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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%{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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%{!maix64:%{!shared:%{g*:-lg}}}\
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%{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
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%{pthread:-lpthreads} -lc"
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#undef LINK_SPEC
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#define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
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%{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
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%{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
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%{mpe:-binitfini:poe_remote_main}"
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "%{!shared:\
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%{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
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%{!maix64:\
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%{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
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%{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
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/* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "long int"
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/* Type used for wchar_t, as a string used in a declaration. */
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#undef WCHAR_TYPE
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#define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
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/* Width of wchar_t in bits. */
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
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/* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
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and "cror 31,31,31" for POWER architecture. */
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#undef RS6000_CALL_GLUE
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#define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
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/* AIX 4.2 and above provides initialization and finalization function
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support from linker command line. */
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#undef HAS_INIT_SECTION
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#define HAS_INIT_SECTION
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#undef LD_INIT_SWITCH
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#define LD_INIT_SWITCH "-binitfini"
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/* This target uses the aix64.opt file. */
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#define TARGET_USES_AIX64_OPT 1
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/* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
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but does not have crtbegin/end. */
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#define TARGET_USE_JCR_SECTION 0
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#define TARGET_AIX_VERSION 51
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