| /* Definitions for rtems targeting a PowerPC using elf. |
| Copyright (C) 1996-2018 Free Software Foundation, Inc. |
| Contributed by Joel Sherrill (joel@OARcorp.com). |
| |
| 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/>. */ |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #ifdef IN_LIBGCC2 |
| #undef TARGET_64BIT |
| #ifdef __powerpc64__ |
| #define TARGET_64BIT 1 |
| #else |
| #define TARGET_64BIT 0 |
| #endif |
| #endif |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef TARGET_AIX |
| #define TARGET_AIX TARGET_64BIT |
| |
| /* Simplified copy and paste from linux64.h and freebsd64.h */ |
| #undef DOT_SYMBOLS |
| #define DOT_SYMBOLS 0 |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef TARGET_CMODEL |
| #define TARGET_CMODEL rs6000_current_cmodel |
| #define SET_CMODEL(opt) rs6000_current_cmodel = opt |
| |
| #undef TARGET_OS_CPP_BUILTINS |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do \ |
| { \ |
| builtin_define ("__rtems__"); \ |
| builtin_define ("__USE_INIT_FINI__"); \ |
| builtin_assert ("system=rtems"); \ |
| if (TARGET_64BIT) \ |
| { \ |
| builtin_define ("__PPC__"); \ |
| builtin_define ("__PPC64__"); \ |
| 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) |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef RELOCATABLE_NEEDS_FIXUP |
| #define RELOCATABLE_NEEDS_FIXUP \ |
| (rs6000_isa_flags & rs6000_isa_flags_explicit & OPTION_MASK_RELOCATABLE) |
| |
| /* Copy and paste from linux64.h */ |
| #undef RS6000_ABI_NAME |
| #define RS6000_ABI_NAME "linux" |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #define INVALID_64BIT "-m%s not supported in this configuration" |
| |
| /* A lot of copy and paste from linux64.h and freebsd64.h */ |
| #undef SUBSUBTARGET_OVERRIDE_OPTIONS |
| #define SUBSUBTARGET_OVERRIDE_OPTIONS \ |
| do \ |
| { \ |
| if (rs6000_isa_flags & OPTION_MASK_64BIT) \ |
| { \ |
| rs6000_elf_abi = 2; \ |
| rs6000_current_abi = ABI_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) \ |
| { \ |
| TARGET_NO_FP_IN_TOC = 0; \ |
| TARGET_NO_SUM_IN_TOC = 0; \ |
| } \ |
| } \ |
| } \ |
| } \ |
| while (0) |
| |
| #undef TARGET_LIBGCC_SDATA_SECTION |
| #define TARGET_LIBGCC_SDATA_SECTION ".sdata" |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef SIZE_TYPE |
| #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int") |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef PTRDIFF_TYPE |
| #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") |
| |
| /* Copy and paste from freebsd64.h */ |
| #undef WCHAR_TYPE |
| |
| /* Copy and paste from freebsd64.h */ |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE 32 |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #ifdef __powerpc64__ |
| #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ |
| asm (SECTION_OP "\n" \ |
| " bl " #FUNC "\n" \ |
| " nop\n" \ |
| " .previous"); |
| #endif |
| |
| /* This could be also POWERPC_FREEBSD. It is related to the save/restore |
| defines below. */ |
| #define POWERPC_LINUX |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #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 "" |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef ASM_PREFERRED_EH_DATA_FORMAT |
| #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ |
| (TARGET_64BIT || flag_pic \ |
| ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \ |
| | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \ |
| : DW_EH_PE_absptr) |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef TOC_SECTION_ASM_OP |
| #define TOC_SECTION_ASM_OP \ |
| (TARGET_64BIT \ |
| ? "\t.section\t\".toc\",\"aw\"" \ |
| : "\t.section\t\".got\",\"aw\"") |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #undef MINIMAL_TOC_SECTION_ASM_OP |
| #define MINIMAL_TOC_SECTION_ASM_OP \ |
| (TARGET_64BIT \ |
| ? "\t.section\t\".toc1\",\"aw\"" \ |
| : (flag_pic \ |
| ? "\t.section\t\".got2\",\"aw\"" \ |
| : "\t.section\t\".got1\",\"aw\"")) |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #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) |
| |
| /* Copy and paste from linux64.h and freebsd64.h */ |
| #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 \ |
| && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ |
| && BITS_PER_WORD == HOST_BITS_PER_INT))))) |
| |
| #undef CPP_OS_DEFAULT_SPEC |
| #define CPP_OS_DEFAULT_SPEC "\ |
| %{!mcpu*: %{!Dppc*: %{!Dmpc*: -Dmpc750} } }\ |
| %{mcpu=403: %{!Dppc*: %{!Dmpc*: -Dppc403} } } \ |
| %{mcpu=505: %{!Dppc*: %{!Dmpc*: -Dmpc505} } } \ |
| %{mcpu=601: %{!Dppc*: %{!Dmpc*: -Dppc601} } } \ |
| %{mcpu=602: %{!Dppc*: %{!Dmpc*: -Dppc602} } } \ |
| %{mcpu=603: %{!Dppc*: %{!Dmpc*: -Dppc603} } } \ |
| %{mcpu=603e: %{!Dppc*: %{!Dmpc*: -Dppc603e} } } \ |
| %{mcpu=604: %{!Dppc*: %{!Dmpc*: -Dmpc604} } } \ |
| %{mcpu=750: %{!Dppc*: %{!Dmpc*: -Dmpc750} } } \ |
| %{mcpu=821: %{!Dppc*: %{!Dmpc*: -Dmpc821} } } \ |
| %{mcpu=860: %{!Dppc*: %{!Dmpc*: -Dmpc860} } } \ |
| %{mcpu=8540: %{!Dppc*: %{!Dmpc*: -Dppc8540} } } \ |
| %{mcpu=e6500: -D__PPC_CPU_E6500__}" |
| |
| #undef ASM_DEFAULT_SPEC |
| #define ASM_DEFAULT_SPEC "-mppc%{m64:64}" |
| |
| #undef ASM_SPEC |
| #define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)" |
| |
| #define ASM_SPEC32 "-a32 \ |
| %{mrelocatable} %{mrelocatable-lib} %{" FPIE_OR_FPIC_SPEC ":-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 LINK_OS_DEFAULT_SPEC |
| #define LINK_OS_DEFAULT_SPEC \ |
| "%{!m64:%(link_os_spec32)}%{m64:%(link_os_spec64)}" |
| |
| #define LINK_OS_SPEC32 ENDIAN_SELECT(" -m elf32ppc", \ |
| " -m elf32lppc", \ |
| " -m elf32ppc") |
| #define LINK_OS_SPEC64 ENDIAN_SELECT(" -m elf64ppc", \ |
| " -m elf64lppc", \ |
| " -m elf64ppc") |
| |
| #undef SUBSUBTARGET_EXTRA_SPECS |
| #define SUBSUBTARGET_EXTRA_SPECS \ |
| { "asm_spec_common", ASM_SPEC_COMMON }, \ |
| { "asm_spec32", ASM_SPEC32 }, \ |
| { "asm_spec64", ASM_SPEC64 }, \ |
| { "link_os_spec32", LINK_OS_SPEC32 }, \ |
| { "link_os_spec64", LINK_OS_SPEC64 }, |
