| /* Definitions of target machine for GNU compiler, |
| for 64 bit PowerPC linux. |
| Copyright (C) 2000-2015 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. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef RS6000_BI_ARCH |
| |
| #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 |
| |
| #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_PROFILE_KERNEL profile_kernel |
| |
| #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 |
| |
| #undef PROCESSOR_DEFAULT |
| #define PROCESSOR_DEFAULT PROCESSOR_POWER7 |
| #undef PROCESSOR_DEFAULT64 |
| #define PROCESSOR_DEFAULT64 PROCESSOR_POWER8 |
| |
| /* 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 \ |
| (rs6000_isa_flags & rs6000_isa_flags_explicit & OPTION_MASK_RELOCATABLE) |
| |
| #undef RS6000_ABI_NAME |
| #define RS6000_ABI_NAME "linux" |
| |
| #define INVALID_64BIT "-m%s not supported in this configuration" |
| #define INVALID_32BIT INVALID_64BIT |
| |
| #ifdef LINUX64_DEFAULT_ABI_ELFv2 |
| #define ELFv2_ABI_CHECK (rs6000_elf_abi != 1) |
| #else |
| #define ELFv2_ABI_CHECK (rs6000_elf_abi == 2) |
| #endif |
| |
| #undef SUBSUBTARGET_OVERRIDE_OPTIONS |
| #define SUBSUBTARGET_OVERRIDE_OPTIONS \ |
| do \ |
| { \ |
| if (!global_options_set.x_rs6000_alignment_flags) \ |
| rs6000_alignment_flags = MASK_ALIGN_NATURAL; \ |
| if (rs6000_isa_flags & OPTION_MASK_64BIT) \ |
| { \ |
| if (DEFAULT_ABI != ABI_AIX) \ |
| { \ |
| rs6000_current_abi = ABI_AIX; \ |
| error (INVALID_64BIT, "call"); \ |
| } \ |
| dot_symbols = !strcmp (rs6000_abi_name, "aixdesc"); \ |
| if (ELFv2_ABI_CHECK) \ |
| { \ |
| rs6000_current_abi = ABI_ELFv2; \ |
| if (dot_symbols) \ |
| error ("-mcall-aixdesc incompatible with -mabi=elfv2"); \ |
| } \ |
| if (rs6000_isa_flags & OPTION_MASK_RELOCATABLE) \ |
| { \ |
| rs6000_isa_flags &= ~OPTION_MASK_RELOCATABLE; \ |
| error (INVALID_64BIT, "relocatable"); \ |
| } \ |
| if (rs6000_isa_flags & OPTION_MASK_EABI) \ |
| { \ |
| rs6000_isa_flags &= ~OPTION_MASK_EABI; \ |
| error (INVALID_64BIT, "eabi"); \ |
| } \ |
| if (TARGET_PROTOTYPE) \ |
| { \ |
| target_prototype = 0; \ |
| error (INVALID_64BIT, "prototype"); \ |
| } \ |
| if ((rs6000_isa_flags & OPTION_MASK_POWERPC64) == 0) \ |
| { \ |
| rs6000_isa_flags |= OPTION_MASK_POWERPC64; \ |
| error ("-m64 requires a PowerPC64 cpu"); \ |
| } \ |
| 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); \ |
| } \ |
| else \ |
| { \ |
| if (!global_options_set.x_rs6000_current_cmodel) \ |
| SET_CMODEL (CMODEL_MEDIUM); \ |
| if (rs6000_current_cmodel != CMODEL_SMALL) \ |
| { \ |
| if (!global_options_set.x_TARGET_NO_FP_IN_TOC) \ |
| TARGET_NO_FP_IN_TOC \ |
| = rs6000_current_cmodel == CMODEL_MEDIUM; \ |
| if (!global_options_set.x_TARGET_NO_SUM_IN_TOC) \ |
| TARGET_NO_SUM_IN_TOC = 0; \ |
| } \ |
| } \ |
| } \ |
| else \ |
| { \ |
| if (!RS6000_BI_ARCH_P) \ |
| error (INVALID_32BIT, "32"); \ |
| if (TARGET_PROFILE_KERNEL) \ |
| { \ |
| TARGET_PROFILE_KERNEL = 0; \ |
| error (INVALID_32BIT, "profile-kernel"); \ |
| } \ |
| if (global_options_set.x_rs6000_current_cmodel) \ |
| { \ |
| SET_CMODEL (CMODEL_SMALL); \ |
| error (INVALID_32BIT, "cmodel"); \ |
| } \ |
| } \ |
| } \ |
| while (0) |
| |
| #undef ASM_DEFAULT_SPEC |
| #undef ASM_SPEC |
| #undef LINK_OS_LINUX_SPEC |
| |
| #ifndef RS6000_BI_ARCH |
| #define ASM_DEFAULT_SPEC "-mppc64" |
| #define ASM_SPEC "%(asm_spec64) %(asm_spec_common)" |
| #define LINK_OS_LINUX_SPEC "%(link_os_linux_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_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}" |
| #else |
| #define ASM_DEFAULT_SPEC "-mppc%{m64:64}" |
| #define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)" |
| #define LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}" |
| #endif |
| #endif |
| |
| #define ASM_SPEC32 "-a32 \ |
| %{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \ |
| %{memb|msdata=eabi: -memb}" |
| |
| #define ASM_SPEC64 "-a64" |
| |
| #define ASM_SPEC_COMMON "%(asm_cpu) \ |
| %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}}" \ |
| ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_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_linux_spec32", LINK_OS_LINUX_SPEC32 }, \ |
| { "link_os_linux_spec64", LINK_OS_LINUX_SPEC64 }, |
| |
| #undef MULTILIB_DEFAULTS |
| #if DEFAULT_ARCH64_P |
| #define MULTILIB_DEFAULTS { "m64" } |
| #else |
| #define MULTILIB_DEFAULTS { "m32" } |
| #endif |
| |
| #ifndef RS6000_BI_ARCH |
| |
| /* 64-bit PowerPC Linux always has a TOC. */ |
| #undef TARGET_TOC |
| #define TARGET_TOC 1 |
| |
| /* Some things from sysv4.h we don't do when 64 bit. */ |
| #undef OPTION_RELOCATABLE |
| #define OPTION_RELOCATABLE 0 |
| #undef OPTION_EABI |
| #define OPTION_EABI 0 |
| #undef OPTION_PROTOTYPE |
| #define OPTION_PROTOTYPE 0 |
| #undef RELOCATABLE_NEEDS_FIXUP |
| #define RELOCATABLE_NEEDS_FIXUP 0 |
| |
| #endif |
| |
| /* We use glibc _mcount for profiling. */ |
| #define NO_PROFILE_COUNTERS 1 |
| #define PROFILE_HOOK(LABEL) \ |
| do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0) |
| |
| /* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */ |
| #undef ADJUST_FIELD_ALIGN |
| #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ |
| (rs6000_special_adjust_field_align_p ((FIELD), (COMPUTED)) \ |
| ? 128 \ |
| : (TARGET_64BIT \ |
| && TARGET_ALIGN_NATURAL == 0 \ |
| && TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode) \ |
| ? MIN ((COMPUTED), 32) \ |
| : (COMPUTED)) |
| |
| /* PowerPC64 Linux 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)) |
| |
| /* Linux doesn't support saving and restoring 64-bit regs in a 32-bit |
| process. */ |
| #define OS_MISSING_POWERPC64 !TARGET_64BIT |
| |
| #ifdef SINGLE_LIBC |
| #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC) |
| #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC) |
| #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC) |
| #else |
| #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
| #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC) |
| #define OPTION_BIONIC (linux_libc == LIBC_BIONIC) |
| #endif |
| |
| /* Determine what functions are present at the runtime; |
| this includes full c99 runtime and sincos. */ |
| #undef TARGET_LIBC_HAS_FUNCTION |
| #define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function |
| |
| #undef TARGET_OS_CPP_BUILTINS |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do \ |
| { \ |
| if (TARGET_64BIT) \ |
| { \ |
| builtin_define ("__PPC__"); \ |
| builtin_define ("__PPC64__"); \ |
| builtin_define ("__powerpc__"); \ |
| builtin_define ("__powerpc64__"); \ |
| if (!DOT_SYMBOLS) \ |
| builtin_define ("_CALL_LINUX"); \ |
| 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_linux)" |
| |
| #undef LINK_SHLIB_SPEC |
| #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}" |
| |
| #undef LIB_DEFAULT_SPEC |
| #define LIB_DEFAULT_SPEC "%(lib_linux)" |
| |
| #undef STARTFILE_DEFAULT_SPEC |
| #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" |
| |
| #undef ENDFILE_DEFAULT_SPEC |
| #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" |
| |
| #undef LINK_START_DEFAULT_SPEC |
| #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" |
| |
| #undef LINK_OS_DEFAULT_SPEC |
| #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" |
| |
| #define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1" |
| #ifdef LINUX64_DEFAULT_ABI_ELFv2 |
| #define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv1:/lib64/ld64.so.1;:/lib64/ld64.so.2}" |
| #else |
| #define GLIBC_DYNAMIC_LINKER64 "%{mabi=elfv2:/lib64/ld64.so.2;:/lib64/ld64.so.1}" |
| #endif |
| #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0" |
| #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0" |
| #if DEFAULT_LIBC == LIBC_UCLIBC |
| #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}" |
| #elif DEFAULT_LIBC == LIBC_GLIBC |
| #define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}" |
| #else |
| #error "Unsupported DEFAULT_LIBC" |
| #endif |
| #define GNU_USER_DYNAMIC_LINKER32 \ |
| CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32) |
| #define GNU_USER_DYNAMIC_LINKER64 \ |
| CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64) |
| |
| #undef DEFAULT_ASM_ENDIAN |
| #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN) |
| #define DEFAULT_ASM_ENDIAN " -mlittle" |
| #define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \ |
| " -m elf32lppclinux", \ |
| " -m elf32lppclinux") |
| #define LINK_OS_LINUX_EMUL64 ENDIAN_SELECT(" -m elf64ppc", \ |
| " -m elf64lppc", \ |
| " -m elf64lppc") |
| #else |
| #define DEFAULT_ASM_ENDIAN " -mbig" |
| #define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \ |
| " -m elf32lppclinux", \ |
| " -m elf32ppclinux") |
| #define LINK_OS_LINUX_EMUL64 ENDIAN_SELECT(" -m elf64ppc", \ |
| " -m elf64lppc", \ |
| " -m elf64ppc") |
| #endif |
| |
| #define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \ |
| %{rdynamic:-export-dynamic} \ |
| -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}" |
| |
| #define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \ |
| %{rdynamic:-export-dynamic} \ |
| -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}" |
| |
| #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\"")) |
| |
| /* Must be at least as big as our pointer type. */ |
| #undef SIZE_TYPE |
| #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int") |
| |
| #undef PTRDIFF_TYPE |
| #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") |
| |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int") |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE 32 |
| |
| #undef RS6000_MCOUNT |
| #define RS6000_MCOUNT "_mcount" |
| |
| #ifdef __powerpc64__ |
| /* _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. */ |
| #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 "" |
| |
| /* Dwarf2 debugging. */ |
| #undef PREFERRED_DEBUGGING_TYPE |
| #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG |
| |
| /* 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) |
| |
| /* Return nonzero if this entry is to be written into the constant |
| pool in a special way. We do so if this is a SYMBOL_REF, LABEL_REF |
| or a CONST containing one of them. If -mfp-in-toc (the default), |
| we also do this for floating-point constants. We actually can only |
| do this if the FP formats of the target and host machines are the |
| same, but we can't check that since not every file that uses |
| the macros includes real.h. We also do this when we can write the |
| entry into the TOC and the entry is not larger than a TOC entry. */ |
| |
| #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))))) |
| |
| /* 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) |
| |
| /* For backward compatibility, we must continue to use the AIX |
| structure return convention. */ |
| #undef DRAFT_V4_STRUCT_RET |
| #define DRAFT_V4_STRUCT_RET (!TARGET_64BIT) |
| |
| #ifdef TARGET_LIBC_PROVIDES_SSP |
| /* ppc32 glibc provides __stack_chk_guard in -0x7008(2), |
| ppc64 glibc provides it at -0x7010(13). */ |
| #define TARGET_THREAD_SSP_OFFSET (TARGET_64BIT ? -0x7010 : -0x7008) |
| #endif |
| |
| #define POWERPC_LINUX |
| |
| /* ppc{32,64} linux has 128-bit long double support in glibc 2.4 and later. */ |
| #ifdef TARGET_DEFAULT_LONG_DOUBLE_128 |
| #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 |
| #endif |
| |
| /* 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) |
| |
| /* Software floating point support for exceptions and rounding modes |
| depends on the C library in use. */ |
| #undef TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P |
| #define TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P \ |
| rs6000_linux_float_exceptions_rounding_supported_p |
| |
| /* Support for TARGET_ATOMIC_ASSIGN_EXPAND_FENV without FPRs depends |
| on glibc 2.19 or greater. */ |
| #if TARGET_GLIBC_MAJOR > 2 \ |
| || (TARGET_GLIBC_MAJOR == 2 && TARGET_GLIBC_MINOR >= 19) |
| #define RS6000_GLIBC_ATOMIC_FENV 1 |
| #endif |