--- /dev/null
+// SPDX-License-Identifier: GPL-3.0-or-later
+/* Definitions of target machine for GNU compiler,
+ for IBM RS/6000 POWER running AIX V7.3.
+ Copyright (C) 2002-2021 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/>. */
+
+/* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
+ get control in TARGET_OPTION_OVERRIDE. */
+
+#define SUBTARGET_OVERRIDE_OPTIONS \
+do { \
+ if (TARGET_64BIT && ! TARGET_POWERPC64) \
+ { \
+ rs6000_isa_flags |= OPTION_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 (global_options_set.x_rs6000_long_double_type_size) \
+ 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"); \
+ } \
+ if ((rs6000_isa_flags_explicit \
+ & OPTION_MASK_MINIMAL_TOC) != 0) \
+ { \
+ if (global_options_set.x_rs6000_current_cmodel \
+ && rs6000_current_cmodel != CMODEL_SMALL) \
+ error ("%<-mcmodel%> incompatible with other toc options"); \
+ SET_CMODEL (CMODEL_SMALL); \
+ } \
+ if (rs6000_current_cmodel != CMODEL_SMALL) \
+ { \
+ TARGET_NO_FP_IN_TOC = 1; \
+ TARGET_NO_SUM_IN_TOC = 1; \
+ } \
+ if (rs6000_current_cmodel == CMODEL_MEDIUM) \
+ { \
+ rs6000_current_cmodel = CMODEL_LARGE; \
+ } \
+ if (! strcmp (lang_hooks.name, "GNU Go") \
+ && TARGET_32BIT) \
+ { \
+ /* aix/ppc doesn't support -mvsx and -maltivec with Go */ \
+ rs6000_isa_flags &= ~(OPTION_MASK_VSX | OPTION_MASK_ALTIVEC); \
+ } \
+ if (!global_options_set.x_dwarf_version) \
+ /* AIX only supports DWARF 4. */ \
+ dwarf_version = 4; \
+} while (0)
+
+#define ASM_SPEC32 "-a32"
+#define ASM_SPEC64 "-a64"
+#define ASM_SPEC_COMMON "-u %(asm_cpu)"
+
+/* Common ASM definitions used by ASM_SPEC amongst the various targets for
+ handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.c to
+ provide the default assembler options if the user uses -mcpu=native, so if
+ you make changes here, make them there also. */
+#undef ASM_CPU_SPEC
+#define ASM_CPU_SPEC \
+"%{mcpu=native: %(asm_cpu_native); \
+ mcpu=power10: -mpwr10; \
+ mcpu=power9: -mpwr9; \
+ mcpu=power8: -mpwr8; \
+ mcpu=power7: -mpwr7; \
+ mcpu=power6x|mcpu=power6: -mpwr6; \
+ mcpu=power5+: -mpwr5x; \
+ mcpu=power5: -mpwr5; \
+ mcpu=power4: -mpwr4; \
+ mcpu=power3: -m620; \
+ mcpu=powerpc: -mppc; \
+ mcpu=rs64: -mppc; \
+ mcpu=603: -m603; \
+ mcpu=603e: -m603; \
+ mcpu=604: -m604; \
+ mcpu=604e: -m604; \
+ mcpu=620: -m620; \
+ mcpu=630: -m620; \
+ mcpu=970|mcpu=G5: -m970; \
+ !mcpu*: %(asm_default)} \
+-many"
+
+#undef ASM_DEFAULT_SPEC
+#define ASM_DEFAULT_SPEC "-mpwr7"
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define ("_AIX43"); \
+ builtin_define ("_AIX51"); \
+ builtin_define ("_AIX52"); \
+ builtin_define ("_AIX53"); \
+ builtin_define ("_AIX61"); \
+ builtin_define ("_AIX71"); \
+ builtin_define ("_AIX72"); \
+ builtin_define ("_AIX73"); \
+ TARGET_OS_AIX_CPP_BUILTINS (); \
+ } \
+ while (0)
+
+#define CPP_SPEC32 ""
+#define CPP_SPEC64 "-D__64BIT__"
+#define CPP_SPEC_COMMON "%{posix: -D_POSIX_SOURCE} \
+ %{ansi: -D_ANSI_C_SOURCE} \
+ %{mpe: -I%R/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. */
+#define CPLUSPLUS_CPP_SPEC_COMMON \
+ "-D_ALL_SOURCE -D__COMPATMATH__ \
+ %{mpe: -I%R/usr/lpp/ppe.poe/include} \
+ %{pthread: -D_THREAD_SAFE}"
+
+#define RS6000_CPU(NAME, CPU, FLAGS)
+#include "rs6000-cpus.def"
+#undef RS6000_CPU
+
+#undef TARGET_DEFAULT
+#ifdef RS6000_BI_ARCH
+#define TARGET_DEFAULT (ISA_2_6_MASKS_EMBEDDED | MASK_POWERPC64 | MASK_64BIT)
+#else
+#define TARGET_DEFAULT ISA_2_6_MASKS_EMBEDDED
+#endif
+
+#undef PROCESSOR_DEFAULT
+#define PROCESSOR_DEFAULT PROCESSOR_POWER7
+#undef PROCESSOR_DEFAULT64
+#define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
+
+/* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX. */
+#undef OS_MISSING_ALTIVEC
+
+/* 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 DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT)
+
+#define LIB_SPEC32 "%{!shared:%{g*:-lg}}"
+#define LIB_SPEC64 ""
+#define LIB_SPEC_COMMON "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
+ %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
+ %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
+ %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
+ %{mlong-double-128:-lc128}\
+ %{pthread:-lpthreads} -lc"
+
+#define LINK_SPEC32 "%{!shared:%{g*: %(link_libg) }} -b32"
+#define LINK_SPEC64 "-b64"
+#define LINK_SPEC_COMMON "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
+ %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
+ %{mpe:-binitfini:poe_remote_main} "
+
+#undef STARTFILE_SPEC
+#if DEFAULT_ARCH64_P
+#define STARTFILE_SPEC "%{!shared:\
+ %{!maix32:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
+ %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
+ %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
+ %{!maix32:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\
+ %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}"
+#else
+#define STARTFILE_SPEC "%{!shared:\
+ %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
+ %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
+ %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
+ %{maix64:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\
+ %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}"
+#endif
+
+
+#undef ASM_SPEC
+#undef CPP_SPEC
+#undef CPLUSPLUS_CPP_SPEC
+#undef LIB_SPEC
+#undef LINK_SPEC
+
+#if DEFAULT_ARCH64_P
+#define ASM_SPEC "%{maix32:%(asm_spec32);:%(asm_spec64)} %(asm_spec_common)"
+#define CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cpp_spec_common)"
+#define CPLUSPLUS_CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cplusplus_cpp_spec_common)"
+#define LIB_SPEC "%{maix32:%(lib_spec32);:%(lib_spec64)} %(lib_spec_common)"
+#define LINK_SPEC "%{maix32:%(link_spec32);:%(link_spec64)} %(link_spec_common)"
+#else
+#define ASM_SPEC "%{maix64:%(asm_spec64);:%(asm_spec32)} %(asm_spec_common)"
+#define CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cpp_spec_common)"
+#define CPLUSPLUS_CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cplusplus_cpp_spec_common)"
+#define LIB_SPEC "%{maix64:%(lib_spec64);:%(lib_spec32)} %(lib_spec_common)"
+#define LINK_SPEC "%{maix64:%(link_spec64);:%(link_spec32)} %(link_spec_common)"
+#endif
+
+#undef SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS \
+ { "asm_spec_common", ASM_SPEC_COMMON }, \
+ { "asm_spec32", ASM_SPEC32 }, \
+ { "asm_spec64", ASM_SPEC64 }, \
+ { "cpp_spec_common", CPP_SPEC_COMMON }, \
+ { "cplusplus_cpp_spec_common", CPLUSPLUS_CPP_SPEC_COMMON }, \
+ { "cpp_spec32", CPP_SPEC32 }, \
+ { "cpp_spec64", CPP_SPEC64 }, \
+ { "lib_spec_common", LIB_SPEC_COMMON }, \
+ { "lib_spec32", LIB_SPEC32 }, \
+ { "lib_spec64", LIB_SPEC64 }, \
+ { "link_spec_common", LINK_SPEC_COMMON }, \
+ { "link_spec32", LINK_SPEC32 }, \
+ { "link_spec64", LINK_SPEC64 },
+
+/* 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 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"
+
+#ifndef _AIX52
+extern long long int atoll(const char *);
+#endif
+
+/* This target uses the aix64.opt file. */
+#define TARGET_USES_AIX64_OPT 1
+
+/* Large TOC Support */
+#ifdef HAVE_LD_LARGE_TOC
+#undef TARGET_CMODEL
+#define TARGET_CMODEL rs6000_current_cmodel
+#define SET_CMODEL(opt) rs6000_current_cmodel = opt
+#else
+#define SET_CMODEL(opt) do {} while (0)
+#endif
+
+/* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
+ but does not have crtbegin/end. */
+
+#define TARGET_AIX_VERSION 72
+
+/* AIX 7.2 supports DWARF3+ debugging. */
+#define DWARF2_DEBUGGING_INFO 1
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+#define DEBUG_INFO_SECTION "0x10000"
+#define DEBUG_LINE_SECTION "0x20000"
+#define DEBUG_PUBNAMES_SECTION "0x30000"
+#define DEBUG_PUBTYPES_SECTION "0x40000"
+#define DEBUG_ARANGES_SECTION "0x50000"
+#define DEBUG_ABBREV_SECTION "0x60000"
+#define DEBUG_STR_SECTION "0x70000"
+#define DEBUG_RANGES_SECTION "0x80000"
+#define DEBUG_LOC_SECTION "0x90000"
+#define DEBUG_FRAME_SECTION "0xA0000"
+#define DEBUG_MACINFO_SECTION "0xB0000"
+#define DEBUG_MACRO_SECTION "0xB0000"
+
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