296 lines
10 KiB
C
296 lines
10 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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/* Definitions of target machine for GNU compiler,
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for IBM RS/6000 POWER running AIX V7.2.
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Copyright (C) 2002-2022 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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/* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
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get control in TARGET_OPTION_OVERRIDE. */
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#define SUBTARGET_OVERRIDE_OPTIONS \
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do { \
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if (TARGET_64BIT && ! TARGET_POWERPC64) \
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{ \
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rs6000_isa_flags |= OPTION_MASK_POWERPC64; \
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warning (0, "%<-maix64%> requires PowerPC64 architecture remain enabled"); \
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} \
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if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \
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{ \
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rs6000_long_double_type_size = 64; \
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if (OPTION_SET_P (rs6000_long_double_type_size)) \
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warning (0, "soft-float and long-double-128 are incompatible"); \
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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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if ((rs6000_isa_flags_explicit \
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& OPTION_MASK_MINIMAL_TOC) != 0) \
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{ \
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if (OPTION_SET_P (rs6000_current_cmodel) \
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&& rs6000_current_cmodel != CMODEL_SMALL) \
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error ("%<-mcmodel%> incompatible with other toc options"); \
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SET_CMODEL (CMODEL_SMALL); \
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} \
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if (rs6000_current_cmodel != CMODEL_SMALL) \
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{ \
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TARGET_NO_FP_IN_TOC = 1; \
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TARGET_NO_SUM_IN_TOC = 1; \
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} \
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if (rs6000_current_cmodel == CMODEL_MEDIUM) \
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{ \
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rs6000_current_cmodel = CMODEL_LARGE; \
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} \
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if (! strcmp (lang_hooks.name, "GNU Go") \
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&& TARGET_32BIT) \
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{ \
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/* aix/ppc doesn't support -mvsx and -maltivec with Go */ \
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rs6000_isa_flags &= ~(OPTION_MASK_VSX | OPTION_MASK_ALTIVEC); \
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} \
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if (!OPTION_SET_P (dwarf_version)) \
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/* AIX only supports DWARF 4. */ \
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dwarf_version = 4; \
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} while (0)
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#define ASM_SPEC32 "-a32"
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#define ASM_SPEC64 "-a64"
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#define ASM_SPEC_COMMON "-u %(asm_cpu)"
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/* Common ASM definitions used by ASM_SPEC amongst the various targets for
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handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.cc to
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provide the default assembler options if the user uses -mcpu=native, so if
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you make changes here, make them there also. */
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#undef ASM_CPU_SPEC
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#define ASM_CPU_SPEC \
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"%{mcpu=native: %(asm_cpu_native); \
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mcpu=power10: -mpwr10; \
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mcpu=power9: -mpwr9; \
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mcpu=power8: -mpwr8; \
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mcpu=power7: -mpwr7; \
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mcpu=power6x|mcpu=power6: -mpwr6; \
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mcpu=power5+: -mpwr5x; \
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mcpu=power5: -mpwr5; \
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mcpu=power4: -mpwr4; \
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mcpu=power3: -m620; \
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mcpu=powerpc: -mppc; \
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mcpu=rs64: -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|mcpu=G5: -m970; \
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!mcpu*: %(asm_default)} \
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-many"
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#undef ASM_DEFAULT_SPEC
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#define ASM_DEFAULT_SPEC "-mpwr7"
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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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builtin_define ("_AIX52"); \
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builtin_define ("_AIX53"); \
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builtin_define ("_AIX61"); \
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builtin_define ("_AIX71"); \
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builtin_define ("_AIX72"); \
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TARGET_OS_AIX_CPP_BUILTINS (); \
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} \
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while (0)
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#define CPP_SPEC32 ""
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#define CPP_SPEC64 "-D__64BIT__"
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#define CPP_SPEC_COMMON "%{posix: -D_POSIX_SOURCE} \
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%{ansi: -D_ANSI_C_SOURCE} \
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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. Synchronize with libstdc++ os_defines.h. */
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#define CPLUSPLUS_CPP_SPEC_COMMON \
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"-D_ALL_SOURCE -D__COMPATMATH__ \
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%{mpe: -I%R/usr/lpp/ppe.poe/include} \
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%{pthread: -D_THREAD_SAFE}"
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#define RS6000_CPU(NAME, CPU, FLAGS)
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#include "rs6000-cpus.def"
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#undef RS6000_CPU
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#undef TARGET_DEFAULT
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#ifdef RS6000_BI_ARCH
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#define TARGET_DEFAULT (ISA_2_6_MASKS_EMBEDDED | MASK_POWERPC64 | MASK_64BIT)
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#else
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#define TARGET_DEFAULT ISA_2_6_MASKS_EMBEDDED
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#endif
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#undef PROCESSOR_DEFAULT
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#define PROCESSOR_DEFAULT PROCESSOR_POWER7
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#undef PROCESSOR_DEFAULT64
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#define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
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/* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX. */
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#undef OS_MISSING_ALTIVEC
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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 DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT)
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#define LIB_SPEC32 "%{!shared:%{g*:-lg}}"
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#define LIB_SPEC64 ""
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#define LIB_SPEC_COMMON "%{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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%{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
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%{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
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%{mlong-double-128:-lc128}\
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%{pthread:-lpthreads} -lc"
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#define LINK_SPEC32 "%{!shared:%{g*: %(link_libg) }} -b32"
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#define LINK_SPEC64 "-b64"
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#define LINK_SPEC_COMMON "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
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%{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
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%{mpe:-binitfini:poe_remote_main} "
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#undef STARTFILE_SPEC
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#if DEFAULT_ARCH64_P
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#define STARTFILE_SPEC "%{!shared:\
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%{!maix32:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
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%{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
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%{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
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%{!maix32:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\
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%{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}"
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#else
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#define STARTFILE_SPEC "%{!shared:\
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%{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
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%{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
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%{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
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%{maix64:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\
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%{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}"
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#endif
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#undef ASM_SPEC
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#undef CPP_SPEC
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#undef CPLUSPLUS_CPP_SPEC
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#undef LIB_SPEC
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#undef LINK_SPEC
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#if DEFAULT_ARCH64_P
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#define ASM_SPEC "%{maix32:%(asm_spec32);:%(asm_spec64)} %(asm_spec_common)"
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#define CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cpp_spec_common)"
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#define CPLUSPLUS_CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cplusplus_cpp_spec_common)"
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#define LIB_SPEC "%{maix32:%(lib_spec32);:%(lib_spec64)} %(lib_spec_common)"
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#define LINK_SPEC "%{maix32:%(link_spec32);:%(link_spec64)} %(link_spec_common)"
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#else
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#define ASM_SPEC "%{maix64:%(asm_spec64);:%(asm_spec32)} %(asm_spec_common)"
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#define CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cpp_spec_common)"
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#define CPLUSPLUS_CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cplusplus_cpp_spec_common)"
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#define LIB_SPEC "%{maix64:%(lib_spec64);:%(lib_spec32)} %(lib_spec_common)"
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#define LINK_SPEC "%{maix64:%(link_spec64);:%(link_spec32)} %(link_spec_common)"
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#endif
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#undef SUBTARGET_EXTRA_SPECS
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#define SUBTARGET_EXTRA_SPECS \
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{ "asm_spec_common", ASM_SPEC_COMMON }, \
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{ "asm_spec32", ASM_SPEC32 }, \
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{ "asm_spec64", ASM_SPEC64 }, \
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{ "cpp_spec_common", CPP_SPEC_COMMON }, \
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{ "cplusplus_cpp_spec_common", CPLUSPLUS_CPP_SPEC_COMMON }, \
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{ "cpp_spec32", CPP_SPEC32 }, \
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{ "cpp_spec64", CPP_SPEC64 }, \
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{ "lib_spec_common", LIB_SPEC_COMMON }, \
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{ "lib_spec32", LIB_SPEC32 }, \
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{ "lib_spec64", LIB_SPEC64 }, \
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{ "link_spec_common", LINK_SPEC_COMMON }, \
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{ "link_spec32", LINK_SPEC32 }, \
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{ "link_spec64", LINK_SPEC64 },
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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 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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#ifndef _AIX52
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extern long long int atoll(const char *);
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#endif
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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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/* Large TOC Support */
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#ifdef HAVE_LD_LARGE_TOC
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#undef TARGET_CMODEL
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#define TARGET_CMODEL rs6000_current_cmodel
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#define SET_CMODEL(opt) rs6000_current_cmodel = opt
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#else
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#define SET_CMODEL(opt) do {} while (0)
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#endif
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/* System headers are not C++-aware. */
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#define SYSTEM_IMPLICIT_EXTERN_C 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_AIX_VERSION 72
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/* AIX 7.2 supports DWARF3+ debugging. */
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#define DWARF2_DEBUGGING_INFO 1
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#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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#define DEBUG_INFO_SECTION "0x10000"
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#define DEBUG_LINE_SECTION "0x20000"
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#define DEBUG_PUBNAMES_SECTION "0x30000"
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#define DEBUG_PUBTYPES_SECTION "0x40000"
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#define DEBUG_ARANGES_SECTION "0x50000"
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#define DEBUG_ABBREV_SECTION "0x60000"
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#define DEBUG_STR_SECTION "0x70000"
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#define DEBUG_RANGES_SECTION "0x80000"
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#define DEBUG_LOC_SECTION "0x90000"
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#define DEBUG_FRAME_SECTION "0xA0000"
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#define DEBUG_MACINFO_SECTION "0xB0000"
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#define DEBUG_MACRO_SECTION "0xB0000"
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