1/* IA32 VxWorks target definitions for GNU compiler. 2 Copyright (C) 2003-2015 Free Software Foundation, Inc. 3 Updated by CodeSourcery, LLC. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21#undef ASM_SPEC 22#define ASM_SPEC "" 23 24#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ 25 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) 26 27/* VxWorks uses the same ABI as Solaris 2, so use i386/sol2.h version. */ 28 29#undef TARGET_SUBTARGET_DEFAULT 30#define TARGET_SUBTARGET_DEFAULT \ 31 (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_VECT8_RETURNS) 32 33/* Provide our target specific DBX_REGISTER_NUMBER. VxWorks relies on 34 the SVR4 numbering. */ 35 36#undef DBX_REGISTER_NUMBER 37#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n] 38 39#define TARGET_OS_CPP_BUILTINS() \ 40 do \ 41 { \ 42 VXWORKS_OS_CPP_BUILTINS (); \ 43 if (TARGET_386) \ 44 builtin_define ("CPU=I80386"); \ 45 else if (TARGET_486) \ 46 builtin_define ("CPU=I80486"); \ 47 else if (TARGET_PENTIUM) \ 48 { \ 49 builtin_define ("CPU=PENTIUM"); \ 50 builtin_define ("CPU_VARIANT=PENTIUM"); \ 51 } \ 52 else if (TARGET_PENTIUMPRO) \ 53 { \ 54 builtin_define ("CPU=PENTIUM2"); \ 55 builtin_define ("CPU_VARIANT=PENTIUMPRO"); \ 56 } \ 57 else if (TARGET_PENTIUM4) \ 58 { \ 59 builtin_define ("CPU=PENTIUM4"); \ 60 builtin_define ("CPU_VARIANT=PENTIUM4"); \ 61 } \ 62 } \ 63 while (0) 64 65#undef CPP_SPEC 66#define CPP_SPEC VXWORKS_ADDITIONAL_CPP_SPEC 67#undef LIB_SPEC 68#define LIB_SPEC VXWORKS_LIB_SPEC 69#undef STARTFILE_SPEC 70#define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC 71#undef ENDFILE_SPEC 72#define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC 73#undef LINK_SPEC 74#define LINK_SPEC VXWORKS_LINK_SPEC 75 76#undef SUBTARGET_SWITCHES 77#define SUBTARGET_SWITCHES EXTRA_SUBTARGET_SWITCHES 78 79#undef SUBTARGET_OVERRIDE_OPTIONS 80#define SUBTARGET_OVERRIDE_OPTIONS VXWORKS_OVERRIDE_OPTIONS 81 82/* No _mcount profiling on VxWorks. */ 83#undef FUNCTION_PROFILER 84#define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO) 85 86/* We cannot use PC-relative accesses for VxWorks PIC because there is no 87 fixed gap between segments. */ 88#undef ASM_PREFERRED_EH_DATA_FORMAT 89 90#define IX86_MAYBE_NO_LIBGCC_TFMODE 91