/* Target definitions for GNU compiler for PowerPC running System V.4 Copyright (C) 1995-2015 Free Software Foundation, Inc. Contributed by Cygnus Support. 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 . */ /* Header files should be C++ aware in general. */ #undef NO_IMPLICIT_EXTERN_C #define NO_IMPLICIT_EXTERN_C /* Yes! We are ELF. */ #define TARGET_OBJECT_FORMAT OBJECT_ELF /* Default ABI to compile code for. */ #define DEFAULT_ABI rs6000_current_abi /* Default ABI to use. */ #define RS6000_ABI_NAME "sysv" /* Override rs6000.h definition. */ #undef ASM_DEFAULT_SPEC #define ASM_DEFAULT_SPEC "-mppc" #define TARGET_TOC ((rs6000_isa_flags & OPTION_MASK_64BIT) \ || ((rs6000_isa_flags \ & (OPTION_MASK_RELOCATABLE \ | OPTION_MASK_MINIMAL_TOC)) \ && flag_pic > 1) \ || DEFAULT_ABI != ABI_V4) #define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE) #define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) #define TARGET_PROTOTYPE target_prototype #define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE) #define TARGET_NO_TOC (! TARGET_TOC) #define TARGET_NO_EABI (! TARGET_EABI) #define TARGET_REGNAMES rs6000_regnames #ifdef HAVE_AS_REL16 #undef TARGET_SECURE_PLT #define TARGET_SECURE_PLT secure_plt #endif #define SDATA_DEFAULT_SIZE 8 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to get control in TARGET_OPTION_OVERRIDE. */ #define SUBTARGET_OVERRIDE_OPTIONS \ do { \ if (!global_options_set.x_g_switch_value) \ g_switch_value = SDATA_DEFAULT_SIZE; \ \ if (rs6000_abi_name == NULL) \ rs6000_abi_name = RS6000_ABI_NAME; \ \ if (!strcmp (rs6000_abi_name, "sysv")) \ rs6000_current_abi = ABI_V4; \ else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \ { \ rs6000_current_abi = ABI_V4; \ rs6000_isa_flags &= ~ OPTION_MASK_EABI; \ } \ else if (!strcmp (rs6000_abi_name, "sysv-eabi") \ || !strcmp (rs6000_abi_name, "eabi")) \ { \ rs6000_current_abi = ABI_V4; \ rs6000_isa_flags |= OPTION_MASK_EABI; \ } \ else if (!strcmp (rs6000_abi_name, "aixdesc")) \ rs6000_current_abi = ABI_AIX; \ else if (!strcmp (rs6000_abi_name, "freebsd") \ || !strcmp (rs6000_abi_name, "linux")) \ { \ if (TARGET_64BIT) \ rs6000_current_abi = ABI_AIX; \ else \ rs6000_current_abi = ABI_V4; \ } \ else if (!strcmp (rs6000_abi_name, "netbsd")) \ rs6000_current_abi = ABI_V4; \ else if (!strcmp (rs6000_abi_name, "openbsd")) \ rs6000_current_abi = ABI_V4; \ else if (!strcmp (rs6000_abi_name, "i960-old")) \ { \ rs6000_current_abi = ABI_V4; \ rs6000_isa_flags |= (OPTION_MASK_LITTLE_ENDIAN | OPTION_MASK_EABI); \ rs6000_isa_flags &= ~OPTION_MASK_STRICT_ALIGN; \ TARGET_NO_BITFIELD_WORD = 1; \ } \ else \ { \ rs6000_current_abi = ABI_V4; \ error ("bad value for -mcall-%s", rs6000_abi_name); \ } \ \ if (rs6000_sdata_name) \ { \ if (!strcmp (rs6000_sdata_name, "none")) \ rs6000_sdata = SDATA_NONE; \ else if (!strcmp (rs6000_sdata_name, "data")) \ rs6000_sdata = SDATA_DATA; \ else if (!strcmp (rs6000_sdata_name, "default")) \ rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \ else if (!strcmp (rs6000_sdata_name, "sysv")) \ rs6000_sdata = SDATA_SYSV; \ else if (!strcmp (rs6000_sdata_name, "eabi")) \ rs6000_sdata = SDATA_EABI; \ else \ error ("bad value for -msdata=%s", rs6000_sdata_name); \ } \ else if (DEFAULT_ABI == ABI_V4) \ { \ rs6000_sdata = SDATA_DATA; \ rs6000_sdata_name = "data"; \ } \ else \ { \ rs6000_sdata = SDATA_NONE; \ rs6000_sdata_name = "none"; \ } \ \ if (TARGET_RELOCATABLE && \ (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \ { \ rs6000_sdata = SDATA_DATA; \ error ("-mrelocatable and -msdata=%s are incompatible", \ rs6000_sdata_name); \ } \ \ else if (flag_pic && DEFAULT_ABI == ABI_V4 \ && (rs6000_sdata == SDATA_EABI \ || rs6000_sdata == SDATA_SYSV)) \ { \ rs6000_sdata = SDATA_DATA; \ error ("-f%s and -msdata=%s are incompatible", \ (flag_pic > 1) ? "PIC" : "pic", \ rs6000_sdata_name); \ } \ \ if ((rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \ || (rs6000_sdata == SDATA_EABI && !TARGET_EABI)) \ { \ rs6000_sdata = SDATA_NONE; \ error ("-msdata=%s and -mcall-%s are incompatible", \ rs6000_sdata_name, rs6000_abi_name); \ } \ \ targetm.have_srodata_section = rs6000_sdata == SDATA_EABI; \ \ if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \ { \ rs6000_isa_flags |= OPTION_MASK_MINIMAL_TOC; \ error ("-mrelocatable and -mno-minimal-toc are incompatible"); \ } \ \ if (TARGET_RELOCATABLE && rs6000_current_abi != ABI_V4) \ { \ rs6000_isa_flags &= ~OPTION_MASK_RELOCATABLE; \ error ("-mrelocatable and -mcall-%s are incompatible", \ rs6000_abi_name); \ } \ \ if (!TARGET_64BIT && flag_pic > 1 && rs6000_current_abi != ABI_V4) \ { \ flag_pic = 0; \ error ("-fPIC and -mcall-%s are incompatible", \ rs6000_abi_name); \ } \ \ if (TARGET_SECURE_PLT != secure_plt) \ { \ error ("-msecure-plt not supported by your assembler"); \ } \ \ /* Treat -fPIC the same as -mrelocatable. */ \ if (flag_pic > 1 && DEFAULT_ABI == ABI_V4) \ { \ rs6000_isa_flags |= OPTION_MASK_RELOCATABLE | OPTION_MASK_MINIMAL_TOC; \ TARGET_NO_FP_IN_TOC = 1; \ } \ \ else if (TARGET_RELOCATABLE) \ if (!flag_pic) \ flag_pic = 2; \ } while (0) #ifndef RS6000_BI_ARCH # define SUBSUBTARGET_OVERRIDE_OPTIONS \ do { \ if ((TARGET_DEFAULT ^ rs6000_isa_flags) & OPTION_MASK_64BIT) \ error ("-m%s not supported in this configuration", \ (rs6000_isa_flags & OPTION_MASK_64BIT) ? "64" : "32"); \ } while (0) #endif /* Override rs6000.h definition. */ #undef TARGET_DEFAULT #define TARGET_DEFAULT 0 /* Override rs6000.h definition. */ #undef PROCESSOR_DEFAULT #define PROCESSOR_DEFAULT PROCESSOR_PPC750 #define FIXED_R2 1 /* System V.4 uses register 13 as a pointer to the small data area, so it is not available to the normal user. */ #define FIXED_R13 1 /* Override default big endianism definitions in rs6000.h. */ #undef BYTES_BIG_ENDIAN #undef WORDS_BIG_ENDIAN #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN) #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN) /* Put jump tables in read-only memory, rather than in .text. */ #define JUMP_TABLES_IN_TEXT_SECTION 0 /* Prefix and suffix to use to saving floating point. */ #define SAVE_FP_PREFIX "_savefpr_" #define SAVE_FP_SUFFIX "" /* Prefix and suffix to use to restoring floating point. */ #define RESTORE_FP_PREFIX "_restfpr_" #define RESTORE_FP_SUFFIX "" /* Type used for size_t, as a string used in a declaration. */ #undef SIZE_TYPE #define SIZE_TYPE "unsigned int" /* Type used for ptrdiff_t, as a string used in a declaration. */ #define PTRDIFF_TYPE "int" #undef WCHAR_TYPE #define WCHAR_TYPE "long int" #undef WCHAR_TYPE_SIZE #define WCHAR_TYPE_SIZE 32 /* Make int foo : 8 not cause structures to be aligned to an int boundary. */ /* Override elfos.h definition. */ #undef PCC_BITFIELD_TYPE_MATTERS #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE) #undef BITFIELD_NBYTES_LIMITED #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD) /* Define this macro to be the value 1 if instructions will fail to work if given data not on the nominal alignment. If instructions will merely go slower in that case, define this macro as 0. */ #undef STRICT_ALIGNMENT #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN) /* Define this macro if you wish to preserve a certain alignment for the stack pointer, greater than what the hardware enforces. The definition is a C expression for the desired alignment (measured in bits). This macro must evaluate to a value equal to or larger than STACK_BOUNDARY. For the SYSV ABI and variants the alignment of the stack pointer is usually controlled manually in rs6000.c. However, to maintain alignment across alloca () in all circumstances, PREFERRED_STACK_BOUNDARY needs to be set as well. This has the additional advantage of allowing a bigger maximum alignment of user objects on the stack. */ #undef PREFERRED_STACK_BOUNDARY #define PREFERRED_STACK_BOUNDARY 128 /* Real stack boundary as mandated by the appropriate ABI. */ #define ABI_STACK_BOUNDARY \ ((TARGET_EABI && !TARGET_ALTIVEC && !TARGET_ALTIVEC_ABI) ? 64 : 128) /* An expression for the alignment of a structure field FIELD if the alignment computed in the usual way is COMPUTED. */ #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ (rs6000_special_adjust_field_align_p ((FIELD), (COMPUTED)) \ ? 128 : COMPUTED) #undef BIGGEST_FIELD_ALIGNMENT /* Use ELF style section commands. */ #define TEXT_SECTION_ASM_OP "\t.section\t\".text\"" #define DATA_SECTION_ASM_OP "\t.section\t\".data\"" #define BSS_SECTION_ASM_OP "\t.section\t\".bss\"" /* Override elfos.h definition. */ #undef INIT_SECTION_ASM_OP #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\"" /* Override elfos.h definition. */ #undef FINI_SECTION_ASM_OP #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\"" #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\"" /* Put PC relative got entries in .got2. */ #define MINIMAL_TOC_SECTION_ASM_OP \ (TARGET_RELOCATABLE || (flag_pic && DEFAULT_ABI == ABI_V4) \ ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"") #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\"" #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\"" #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits" /* Override default elf definitions. */ #define TARGET_ASM_INIT_SECTIONS rs6000_elf_asm_init_sections #undef TARGET_ASM_RELOC_RW_MASK #define TARGET_ASM_RELOC_RW_MASK rs6000_elf_reloc_rw_mask #undef TARGET_ASM_SELECT_RTX_SECTION #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section /* 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 these target macros includes real.h. Unlike AIX, we don't key off of -mminimal-toc, but instead do not allow floating point constants in the TOC if -mrelocatable. */ #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)) \ || (!TARGET_NO_FP_IN_TOC \ && !TARGET_RELOCATABLE \ && GET_CODE (X) == CONST_DOUBLE \ && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ && BITS_PER_WORD == HOST_BITS_PER_INT))) /* These macros generate the special .type and .size directives which are used to set the corresponding fields of the linker symbol table entries in an ELF object file under SVR4. These macros also output the starting labels for the relevant functions/objects. */ /* Write the extra assembler code needed to declare a function properly. Some svr4 assemblers need to also have something extra said about the function's return value. We allow for that here. */ /* Override elfos.h definition. */ #undef ASM_DECLARE_FUNCTION_NAME #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ rs6000_elf_declare_function_name ((FILE), (NAME), (DECL)) /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */ #define LOCAL_LABEL_PREFIX "." #define USER_LABEL_PREFIX "" #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \ asm_fprintf (FILE, "%L%s", PREFIX) /* Globalizing directive for a label. */ #define GLOBAL_ASM_OP "\t.globl " /* This says how to output assembler code to declare an uninitialized internal linkage data object. Under SVR4, the linker seems to want the alignment of data objects to depend on their types. We do exactly that here. */ #define LOCAL_ASM_OP "\t.local\t" #define LCOMM_ASM_OP "\t.lcomm\t" /* Describe how to emit uninitialized local items. */ #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ do { \ if ((DECL) && rs6000_elf_in_small_data_p (DECL)) \ { \ switch_to_section (sbss_section); \ ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \ ASM_OUTPUT_LABEL (FILE, NAME); \ ASM_OUTPUT_SKIP (FILE, SIZE); \ if (!flag_inhibit_size_directive && (SIZE) > 0) \ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \ } \ else \ { \ fprintf (FILE, "%s", LCOMM_ASM_OP); \ assemble_name ((FILE), (NAME)); \ fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ (SIZE), (ALIGN) / BITS_PER_UNIT); \ } \ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ } while (0) /* Describe how to emit uninitialized external linkage items. */ #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ do { \ ASM_OUTPUT_ALIGNED_DECL_LOCAL (FILE, DECL, NAME, SIZE, ALIGN); \ } while (0) #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN /* To support -falign-* switches we need to use .p2align so that alignment directives in code sections will be padded with no-op instructions, rather than zeroes. */ #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ if ((LOG) != 0) \ { \ if ((MAX_SKIP) == 0) \ fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ else \ fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ } #endif /* This is how to output code to push a register on the stack. It need not be very fast code. On the rs6000, we must keep the backchain up to date. In order to simplify things, always allocate 16 bytes for a push (System V wants to keep stack aligned to a 16 byte boundary). */ #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \ do { \ if (DEFAULT_ABI == ABI_V4) \ asm_fprintf (FILE, \ "\tstwu %s,-16(%s)\n\tstw %s,12(%s)\n", \ reg_names[1], reg_names[1], reg_names[REGNO], \ reg_names[1]); \ } while (0) /* This is how to output an insn to pop a register from the stack. It need not be very fast code. */ #define ASM_OUTPUT_REG_POP(FILE, REGNO) \ do { \ if (DEFAULT_ABI == ABI_V4) \ asm_fprintf (FILE, \ "\tlwz %s,12(%s)\n\taddi %s,%s,16\n", \ reg_names[REGNO], reg_names[1], reg_names[1], \ reg_names[1]); \ } while (0) extern int fixuplabelno; /* Handle constructors specially for -mrelocatable. */ #define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor #define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor /* This is the end of what might become sysv4.h. */ /* Use DWARF 2 debugging information by default. */ #undef PREFERRED_DEBUGGING_TYPE #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG /* Historically we have also supported stabs debugging. */ #define DBX_DEBUGGING_INFO 1 #define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info #define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p /* The ELF version doesn't encode [DS] or whatever at the end of symbols. */ #define RS6000_OUTPUT_BASENAME(FILE, NAME) \ assemble_name (FILE, NAME) /* We have to output the stabs for the function name *first*, before outputting its label. */ #define DBX_FUNCTION_FIRST /* This is the end of what might become sysv4dbx.h. */ #define TARGET_OS_SYSV_CPP_BUILTINS() \ do \ { \ if (rs6000_isa_flags_explicit \ & OPTION_MASK_RELOCATABLE) \ builtin_define ("_RELOCATABLE"); \ } \ while (0) #ifndef TARGET_OS_CPP_BUILTINS #define TARGET_OS_CPP_BUILTINS() \ do \ { \ builtin_define_std ("PPC"); \ builtin_define_std ("unix"); \ builtin_define ("__svr4__"); \ builtin_assert ("system=unix"); \ builtin_assert ("system=svr4"); \ builtin_assert ("cpu=powerpc"); \ builtin_assert ("machine=powerpc"); \ TARGET_OS_SYSV_CPP_BUILTINS (); \ } \ while (0) #endif /* Select one of BIG_OPT, LITTLE_OPT or DEFAULT_OPT depending on various -mbig, -mlittle and -mcall- options. */ #define ENDIAN_SELECT(BIG_OPT, LITTLE_OPT, DEFAULT_OPT) \ "%{mlittle|mlittle-endian:" LITTLE_OPT ";" \ "mbig|mbig-endian:" BIG_OPT ";" \ "mcall-i960-old:" LITTLE_OPT ";" \ ":" DEFAULT_OPT "}" #define DEFAULT_ASM_ENDIAN " -mbig" #undef ASM_SPEC #define ASM_SPEC "%(asm_cpu) \ %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \ %{mrelocatable} %{mrelocatable-lib} %{" FPIE_OR_FPIC_SPEC ":-K PIC} \ %{memb|msdata=eabi: -memb}" \ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) #ifndef CC1_SECURE_PLT_DEFAULT_SPEC #define CC1_SECURE_PLT_DEFAULT_SPEC "" #endif #ifndef LINK_SECURE_PLT_DEFAULT_SPEC #define LINK_SECURE_PLT_DEFAULT_SPEC "" #endif /* Pass -G xxx to the compiler. */ #undef CC1_SPEC #define CC1_SPEC "%{G*} %(cc1_cpu)" \ "%{meabi: %{!mcall-*: -mcall-sysv }} \ %{!meabi: %{!mno-eabi: \ %{mrelocatable: -meabi } \ %{mcall-freebsd: -mno-eabi } \ %{mcall-i960-old: -meabi } \ %{mcall-linux: -mno-eabi } \ %{mcall-netbsd: -mno-eabi } \ %{mcall-openbsd: -mno-eabi }}} \ %{msdata: -msdata=default} \ %{mno-sdata: -msdata=none} \ %{!mbss-plt: %{!msecure-plt: %(cc1_secure_plt_default)}} \ %{profile: -p}" /* Default starting address if specified. */ #define LINK_START_SPEC "\ %{mads : %(link_start_ads) ; \ myellowknife : %(link_start_yellowknife) ; \ mmvme : %(link_start_mvme) ; \ msim : %(link_start_sim) ; \ mcall-freebsd: %(link_start_freebsd) ; \ mcall-linux : %(link_start_linux) ; \ mcall-netbsd : %(link_start_netbsd) ; \ mcall-openbsd: %(link_start_openbsd) ; \ : %(link_start_default) }" #define LINK_START_DEFAULT_SPEC "" #define LINK_SECURE_PLT_SPEC LINK_SECURE_PLT_DEFAULT_SPEC #undef LINK_SPEC #define LINK_SPEC "\ %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \ %{R*} \ %(link_shlib) \ %{!T*: %(link_start) } \ %{!static: %{!mbss-plt: %(link_secure_plt)}} \ %(link_os)" /* Shared libraries are not default. */ #define LINK_SHLIB_SPEC "\ %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \ %{static: } \ %{shared:-G -dy -z text } \ %{symbolic:-Bsymbolic -G -dy -z text }" /* Any specific OS flags. */ #define LINK_OS_SPEC "\ %{mads : %(link_os_ads) ; \ myellowknife : %(link_os_yellowknife) ; \ mmvme : %(link_os_mvme) ; \ msim : %(link_os_sim) ; \ mcall-freebsd: %(link_os_freebsd) ; \ mcall-linux : %(link_os_linux) ; \ mcall-netbsd : %(link_os_netbsd) ; \ mcall-openbsd: %(link_os_openbsd) ; \ : %(link_os_default) }" #define LINK_OS_DEFAULT_SPEC "" #define DRIVER_SELF_SPECS "%{mfpu=none: %