-
/* Definitions for 64-bit PowerPC running FreeBSD using the ELF format
Copyright (C) 2012 Free Software Foundation, Inc.
#endif
#define POWERPC_FREEBSD
-/* Definitions for 64-bit PowerPC running FreeBSD using the ELF format
- Copyright (C) 2011 Free Software Foundation, Inc.
-
- 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/>. */
-
-/* Override the defaults, which exist to force the proper definition. */
-
-#ifndef RS6000_BI_ARCH
-
-#undef DEFAULT_ABI
-#define DEFAULT_ABI ABI_AIX
-
-#undef TARGET_64BIT
-#define TARGET_64BIT 1
-
-#define DEFAULT_ARCH64_P 1
-#define RS6000_BI_ARCH_P 0
-
-#else
-
-#define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT)
-#define RS6000_BI_ARCH_P 1
-
-#endif
-
-#ifdef IN_LIBGCC2
-#undef TARGET_64BIT
-#ifdef __powerpc64__
-#define TARGET_64BIT 1
-#else
-#define TARGET_64BIT 0
-#endif
-#endif
-
-/* On 64-bit systems, use the AIX ABI like Linux and NetBSD */
-
-#undef DEFAULT_ABI
-#define DEFAULT_ABI (TARGET_64BIT ? ABI_AIX : ABI_V4)
-#undef TARGET_AIX
-#define TARGET_AIX TARGET_64BIT
-
-#ifdef HAVE_LD_NO_DOT_SYMS
-/* New ABI uses a local sym for the function entry point. */
-extern int dot_symbols;
-#undef DOT_SYMBOLS
-#define DOT_SYMBOLS dot_symbols
-#endif
-
-#define TARGET_USES_LINUX64_OPT 1
-#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
-
-/* Until now the 970 is the only Processor where FreeBSD 64-bit runs on. */
-#undef PROCESSOR_DEFAULT
-#define PROCESSOR_DEFAULT PROCESSOR_POWER4
-#undef PROCESSOR_DEFAULT64
-#define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
-
-/* We don't need to generate entries in .fixup, except when
- -mrelocatable or -mrelocatable-lib is given. */
-#undef RELOCATABLE_NEEDS_FIXUP
-#define RELOCATABLE_NEEDS_FIXUP \
- (target_flags & target_flags_explicit & MASK_RELOCATABLE)
-
-#define INVALID_64BIT "-m%s not supported in this configuration"
-#define INVALID_32BIT INVALID_64BIT
-
-#undef SUBSUBTARGET_OVERRIDE_OPTIONS
-#define SUBSUBTARGET_OVERRIDE_OPTIONS \
- do \
- { \
- if (!global_options_set.x_rs6000_alignment_flags) \
- rs6000_alignment_flags = MASK_ALIGN_NATURAL; \
- if (TARGET_64BIT) \
- { \
- if (DEFAULT_ABI != ABI_AIX) \
- { \
- rs6000_current_abi = ABI_AIX; \
- error (INVALID_64BIT, "call"); \
- } \
- dot_symbols = !strcmp (rs6000_abi_name, "aixdesc"); \
- if (target_flags & MASK_RELOCATABLE) \
- { \
- target_flags &= ~MASK_RELOCATABLE; \
- error (INVALID_64BIT, "relocatable"); \
- } \
- if (target_flags & MASK_EABI) \
- { \
- target_flags &= ~MASK_EABI; \
- error (INVALID_64BIT, "eabi"); \
- } \
- if (TARGET_PROTOTYPE) \
- { \
- target_prototype = 0; \
- error (INVALID_64BIT, "prototype"); \
- } \
- if ((target_flags & MASK_POWERPC64) == 0) \
- { \
- target_flags |= MASK_POWERPC64; \
- error ("-m64 requires a PowerPC64 cpu"); \
- } \
- if ((target_flags_explicit & 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); \
- } \
- else \
- { \
- if (!global_options_set.x_rs6000_current_cmodel) \
- SET_CMODEL (CMODEL_MEDIUM); \
- if (rs6000_current_cmodel != CMODEL_SMALL) \
- { \
- TARGET_NO_FP_IN_TOC = 0; \
- TARGET_NO_SUM_IN_TOC = 0; \
- } \
- } \
- } \
- } \
- while (0)
-
-#ifdef RS6000_BI_ARCH
-
-#undef OPTION_TARGET_CPU_DEFAULT
-#define OPTION_TARGET_CPU_DEFAULT \
- (((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) \
- ? (char *) 0 : TARGET_CPU_DEFAULT)
-
-#endif
-
-#undef ASM_DEFAULT_SPEC
-#undef ASM_SPEC
-#undef LINK_OS_FREEBSD_SPEC
-
-#ifndef RS6000_BI_ARCH
-#define ASM_DEFAULT_SPEC "-mppc64"
-#define ASM_SPEC "%(asm_spec64) %(asm_spec_common)"
-#define LINK_OS_FREEBSD_SPEC "%(link_os_freebsd_spec64)"
-#else
-#if DEFAULT_ARCH64_P
-#define ASM_DEFAULT_SPEC "-mppc%{!m32:64}"
-#define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
-#define LINK_OS_FREEBSD_SPEC "%{m32:%(link_os_freebsd_spec32)}%{!m32:%(link_os_freebsd_spec64)}"
-#else
-#define ASM_DEFAULT_SPEC "-mppc%{m64:64}"
-#define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)"
-#define LINK_OS_FREEBSD_SPEC "%{!m64:%(link_os_freebsd_spec32)}%{m64:%(link_os_freebsd_spec64)}"
-#endif
-#endif
-
-#define ASM_SPEC32 "-a32 \
-%{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
-%{memb} %{!memb: %{msdata=eabi: -memb}} \
-%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
- %{mcall-freebsd: -mbig} \
- %{mcall-i960-old: -mlittle} \
- %{mcall-linux: -mbig} \
- %{mcall-gnu: -mbig} \
- %{mcall-netbsd: -mbig} \
-}}}}"
-
-#define ASM_SPEC64 "-a64"
-
-#define ASM_SPEC_COMMON "%(asm_cpu) \
-%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
-%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}"
-
-#undef SUBSUBTARGET_EXTRA_SPECS
-#define SUBSUBTARGET_EXTRA_SPECS \
- { "asm_spec_common", ASM_SPEC_COMMON }, \
- { "asm_spec32", ASM_SPEC32 }, \
- { "asm_spec64", ASM_SPEC64 }, \
- { "link_os_freebsd_spec32", LINK_OS_FREEBSD_SPEC32 }, \
- { "link_os_freebsd_spec64", LINK_OS_FREEBSD_SPEC64 },
-
-#define FREEBSD_DYNAMIC_LINKER32 "/libexec/ld-elf32.so.1"
-#define FREEBSD_DYNAMIC_LINKER64 "/libexec/ld-elf.so.1"
-
-#define LINK_OS_FREEBSD_SPEC_DEF32 "\
- %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
- %{v:-V} \
- %{assert*} %{R*} %{rpath*} %{defsym*} \
- %{shared:-Bshareable %{h*} %{soname*}} \
- %{!shared: \
- %{!static: \
- %{rdynamic: -export-dynamic} \
- %{!dynamic-linker:-dynamic-linker " FREEBSD_DYNAMIC_LINKER32 "}} \
- %{static:-Bstatic}} \
- %{symbolic:-Bsymbolic}"
-
-#define LINK_OS_FREEBSD_SPEC_DEF64 "\
- %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
- %{v:-V} \
- %{assert*} %{R*} %{rpath*} %{defsym*} \
- %{shared:-Bshareable %{h*} %{soname*}} \
- %{!shared: \
- %{!static: \
- %{rdynamic: -export-dynamic} \
- %{!dynamic-linker:-dynamic-linker " FREEBSD_DYNAMIC_LINKER64 "}} \
- %{static:-Bstatic}} \
- %{symbolic:-Bsymbolic}"
-
-#define LINK_OS_FREEBSD_SPEC32 "-melf32ppc_fbsd " LINK_OS_FREEBSD_SPEC_DEF32
-
-#define LINK_OS_FREEBSD_SPEC64 "-melf64ppc_fbsd " LINK_OS_FREEBSD_SPEC_DEF64
-
-#undef MULTILIB_DEFAULTS
-#if DEFAULT_ARCH64_P
-#define MULTILIB_DEFAULTS { "m64" }
-#else
-#define MULTILIB_DEFAULTS { "m32" }
-#endif
-
-#ifndef RS6000_BI_ARCH
-
-/* Some things from sysv4.h we don't do when 64 bit. */
-#undef TARGET_RELOCATABLE
-#define TARGET_RELOCATABLE 0
-#undef TARGET_EABI
-#define TARGET_EABI 0
-#undef TARGET_PROTOTYPE
-#define TARGET_PROTOTYPE 0
-#undef RELOCATABLE_NEEDS_FIXUP
-#define RELOCATABLE_NEEDS_FIXUP 0
-
-#endif
-
-/* PowerPC-64 FreeBSD increases natural record alignment to doubleword if
- the first field is an FP double, only if in power alignment mode. */
-#undef ROUND_TYPE_ALIGN
-#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \
- ((TARGET_64BIT \
- && (TREE_CODE (STRUCT) == RECORD_TYPE \
- || TREE_CODE (STRUCT) == UNION_TYPE \
- || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
- && TARGET_ALIGN_NATURAL == 0) \
- ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \
- : MAX ((COMPUTED), (SPECIFIED)))
-
-/* Use the default for compiling target libs. */
-#ifdef IN_TARGET_LIBS
-#undef TARGET_ALIGN_NATURAL
-#define TARGET_ALIGN_NATURAL 1
-#endif
-
-/* Indicate that jump tables go in the text section. */
-#undef JUMP_TABLES_IN_TEXT_SECTION
-#define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT
-
-/* The linux ppc64 ABI isn't explicit on whether aggregates smaller
- than a doubleword should be padded upward or downward. You could
- reasonably assume that they follow the normal rules for structure
- layout treating the parameter area as any other block of memory,
- then map the reg param area to registers. i.e. pad upward.
- Setting both of the following defines results in this behavior.
- Setting just the first one will result in aggregates that fit in a
- doubleword being padded downward, and others being padded upward.
- Not a bad idea as this results in struct { int x; } being passed
- the same way as an int. */
-#define AGGREGATE_PADDING_FIXED TARGET_64BIT
-#define AGGREGATES_PAD_UPWARD_ALWAYS 0
-
-/* Specify padding for the last element of a block move between
- registers and memory. FIRST is nonzero if this is the only
- element. */
-#define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \
- (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE))
-
-/* FreeBSD doesn't support saving and restoring 64-bit regs with a 32-bit
- kernel. This is supported when running on a 64-bit kernel with
- COMPAT_FREEBSD32, but tell GCC it isn't so that our 32-bit binaries
- are compatible. */
-#define OS_MISSING_POWERPC64 !TARGET_64BIT
-
-#undef FBSD_TARGET_CPU_CPP_BUILTINS
-#define FBSD_TARGET_CPU_CPP_BUILTINS() \
- do \
- { \
- if (TARGET_64BIT) \
- { \
- builtin_define ("__PPC__"); \
- builtin_define ("__PPC64__"); \
- builtin_define ("__powerpc__"); \
- builtin_define ("__powerpc64__"); \
- builtin_assert ("cpu=powerpc64"); \
- builtin_assert ("machine=powerpc64"); \
- } \
- else \
- { \
- builtin_define_std ("PPC"); \
- builtin_define_std ("powerpc"); \
- builtin_assert ("cpu=powerpc"); \
- builtin_assert ("machine=powerpc"); \
- TARGET_OS_SYSV_CPP_BUILTINS (); \
- } \
- } \
- while (0)
-
-#undef CPP_OS_DEFAULT_SPEC
-#define CPP_OS_DEFAULT_SPEC "%(cpp_os_freebsd)"
-
-#undef CPP_OS_FREEBSD_SPEC
-#define CPP_OS_FREEBSD_SPEC ""
-
-#undef STARTFILE_DEFAULT_SPEC
-#define STARTFILE_DEFAULT_SPEC "%(startfile_freebsd)"
-
-#undef ENDFILE_DEFAULT_SPEC
-#define ENDFILE_DEFAULT_SPEC "%(endfile_freebsd)"
-
-#undef LIB_DEFAULT_SPEC
-#define LIB_DEFAULT_SPEC "%(lib_freebsd)"
-
-#undef LINK_START_DEFAULT_SPEC
-#define LINK_START_DEFAULT_SPEC "%(link_start_freebsd)"
-
-#undef LINK_OS_DEFAULT_SPEC
-#define LINK_OS_DEFAULT_SPEC "%(link_os_freebsd)"
-
-/* XXX: This is wrong for many platforms in sysv4.h.
- We should work on getting that definition fixed. */
-#undef LINK_SHLIB_SPEC
-#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
-
-
-/************************[ Target stuff ]***********************************/
-
-/* Define the actual types of some ANSI-mandated types.
- Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c,
- c-common.c, and config/<arch>/<arch>.h. */
-
-
-#undef SIZE_TYPE
-#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
-
-#undef PTRDIFF_TYPE
-#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
-
-/* rs6000.h gets this wrong for FreeBSD. We use the GCC defaults instead. */
-#undef WCHAR_TYPE
-#define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int")
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE 32
-
-
-/* Override rs6000.h definition. */
-#undef ASM_APP_ON
-#define ASM_APP_ON "#APP\n"
-
-/* Override rs6000.h definition. */
-#undef ASM_APP_OFF
-#define ASM_APP_OFF "#NO_APP\n"
-
-/* PowerPC no-op instruction. */
-#undef RS6000_CALL_GLUE
-#define RS6000_CALL_GLUE (TARGET_64BIT ? "nop" : "cror 31,31,31")
-
-/* Function profiling bits */
-#undef RS6000_MCOUNT
-#define RS6000_MCOUNT ((TARGET_64BIT) ? "._mcount" : "_mcount")
-#define PROFILE_HOOK(LABEL) \
- do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0)
-
-/* _init and _fini functions are built from bits spread across many
- object files, each potentially with a different TOC pointer. For
- that reason, place a nop after the call so that the linker can
- restore the TOC pointer if a TOC adjusting call stub is needed. */
-#ifdef __powerpc64__
-#if DOT_SYMBOLS
-#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
- asm (SECTION_OP "\n" \
-" bl ." #FUNC "\n" \
-" nop\n" \
-" .previous");
-#else
-#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
- asm (SECTION_OP "\n" \
-" bl " #FUNC "\n" \
-" nop\n" \
-" .previous");
-#endif
-#endif
-
-/* FP save and restore routines. */
-#undef SAVE_FP_PREFIX
-#define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_")
-#undef SAVE_FP_SUFFIX
-#define SAVE_FP_SUFFIX ""
-#undef RESTORE_FP_PREFIX
-#define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_")
-#undef RESTORE_FP_SUFFIX
-#define RESTORE_FP_SUFFIX ""
-
-/* Select a format to encode pointers in exception handling data. CODE
- is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
- true if the symbol may be affected by dynamic relocations. */
-#undef ASM_PREFERRED_EH_DATA_FORMAT
-#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
- ((TARGET_64BIT || flag_pic || TARGET_RELOCATABLE) \
- ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \
- | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \
- : DW_EH_PE_absptr)
-
-/* Static stack checking is supported by means of probes. */
-#define STACK_CHECK_STATIC_BUILTIN 1
-
-/* The default value isn't sufficient in 64-bit mode. */
-#define STACK_CHECK_PROTECT (TARGET_64BIT ? 16 * 1024 : 12 * 1024)
-
-#define DBX_REGISTER_NUMBER(REGNO) rs6000_dbx_register_number (REGNO)
-
-/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */
-#undef ADJUST_FIELD_ALIGN
-#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
- ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
- ? 128 \
- : (TARGET_64BIT \
- && TARGET_ALIGN_NATURAL == 0 \
- && TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode) \
- ? MIN ((COMPUTED), 32) \
- : (COMPUTED))
-
-#undef TOC_SECTION_ASM_OP
-#define TOC_SECTION_ASM_OP \
- (TARGET_64BIT \
- ? "\t.section\t\".toc\",\"aw\"" \
- : "\t.section\t\".got\",\"aw\"")
-
-#undef MINIMAL_TOC_SECTION_ASM_OP
-#define MINIMAL_TOC_SECTION_ASM_OP \
- (TARGET_64BIT \
- ? "\t.section\t\".toc1\",\"aw\"" \
- : ((TARGET_RELOCATABLE || flag_pic) \
- ? "\t.section\t\".got2\",\"aw\"" \
- : "\t.section\t\".got1\",\"aw\""))
-
-/* This is how to declare the size of a function. */
-#undef ASM_DECLARE_FUNCTION_SIZE
-#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
- do \
- { \
- if (!flag_inhibit_size_directive) \
- { \
- fputs ("\t.size\t", (FILE)); \
- if (TARGET_64BIT && DOT_SYMBOLS) \
- putc ('.', (FILE)); \
- assemble_name ((FILE), (FNAME)); \
- fputs (",.-", (FILE)); \
- rs6000_output_function_entry (FILE, FNAME); \
- putc ('\n', (FILE)); \
- } \
- } \
- while (0)
-
-#undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
-#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
- (TARGET_TOC \
- && (GET_CODE (X) == SYMBOL_REF \
- || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
- && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
- || GET_CODE (X) == LABEL_REF \
- || (GET_CODE (X) == CONST_INT \
- && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
- || (GET_CODE (X) == CONST_DOUBLE \
- && ((TARGET_64BIT \
- && (TARGET_MINIMAL_TOC \
- || (SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
- && ! TARGET_NO_FP_IN_TOC))) \
- || (!TARGET_64BIT \
- && !TARGET_NO_FP_IN_TOC \
- && !TARGET_RELOCATABLE \
- && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
- && BITS_PER_WORD == HOST_BITS_PER_INT)))))
-
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