1 /* Target-independent configuration for VxWorks and VxWorks AE. 2 Copyright (C) 2005-2022 Free Software Foundation, Inc. 3 Contributed by CodeSourcery, LLC. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 /* ------------------------- Common SPEC strings ------------------------- */ 22 23 /* Most of these will probably be overridden by subsequent headers. We 24 undefine them here just in case, and define VXWORKS_ versions of each, 25 to be used in port-specific vxworks.h. */ 26 27 /* REAL_LIBGCC_SPEC needs to be used since the non-static option is not 28 handled in gcc.cc. */ 29 #undef REAL_LIBGCC_SPEC 30 #define REAL_LIBGCC_SPEC VXWORKS_LIBGCC_SPEC 31 #undef STARTFILE_SPEC 32 #undef ENDFILE_SPEC 33 34 /* Most of these macros are overridden in "config/vxworks.h" or 35 "config/vxworksae.h" and are here merely for documentation 36 purposes. */ 37 #define VXWORKS_ADDITIONAL_CPP_SPEC "" 38 #define VXWORKS_LIB_SPEC "" 39 #define VXWORKS_LINK_SPEC "" 40 #define VXWORKS_LIBGCC_SPEC "" 41 #define VXWORKS_STARTFILE_SPEC "" 42 #define VXWORKS_ENDFILE_SPEC "" 43 #define VXWORKS_CC1_SPEC "" 44 45 /* ----------------------- Common type descriptions ----------------------- */ 46 47 /* Regardless of the target architecture, VxWorks uses a signed 32bit 48 integer for wchar_t starting with vx7 SR06xx. An unsigned short 49 otherwise. */ 50 #if TARGET_VXWORKS7 51 52 #undef WCHAR_TYPE_SIZE 53 #define WCHAR_TYPE_SIZE 32 54 #undef WCHAR_TYPE 55 #define WCHAR_TYPE (TARGET_VXWORKS64 ? "int" : "long int") 56 57 #else 58 59 #undef WCHAR_TYPE_SIZE 60 #define WCHAR_TYPE_SIZE 16 61 #undef WCHAR_TYPE 62 #define WCHAR_TYPE "short unsigned int" 63 64 #endif 65 66 /* The VxWorks headers base wint_t on the definitions used for wchar_t. 67 Do the same here to make sure they remain in sync, in case WCHAR_TYPE 68 gets redefined for a specific CPU architecture. */ 69 #undef WINT_TYPE_SIZE 70 #define WINT_TYPE_SIZE WCHAR_TYPE_SIZE 71 #undef WINT_TYPE 72 #define WINT_TYPE WCHAR_TYPE 73 74 /* ---------------------- Debug and unwind info formats ------------------ */ 75 76 /* Dwarf2 unwind info is supported, unless overriden by a request for a target 77 specific format. 78 79 Taking care of this here allows using DWARF2_UNWIND_INFO in #if conditions 80 from the common config/vxworks.h files, included before the cpu 81 specializations. Unlike with conditions used in C expressions, where the 82 definitions which matter are those at the expression expansion point, use 83 in #if constructs requires an accurate definition of the operands at the 84 #if point. Since <cpu>/vxworks.h. is typically included after 85 config/vxworks.h, #if expressions in the latter can't rely on possible 86 redefinitions in the former. */ 87 #if !ARM_UNWIND_INFO 88 #undef DWARF2_UNWIND_INFO 89 #define DWARF2_UNWIND_INFO 1 90 #endif 91 92 /* VxWorks uses DWARF2 debugging info. */ 93 #define DWARF2_DEBUGGING_INFO 1 94 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 95 96 /* None of these other formats is supported. */ 97 #undef DBX_DEBUGGING_INFO 98 #undef XCOFF_DEBUGGING_INFO 99 #undef VMS_DEBUGGING_INFO 100 101 /* ------------------------ Misc configuration bits ---------------------- */ 102 103 #if !TARGET_VXWORKS7 104 /* VxWorks, prior to version 7, could not have dots in constructor 105 labels, because it used a mutant variation of collect2 that 106 generates C code instead of assembly. Thus each constructor label 107 had to be a legitimate C symbol. */ 108 # undef NO_DOLLAR_IN_LABEL 109 # define NO_DOT_IN_LABEL 110 #endif 111 112 /* Kernel mode doesn't have ctors/dtors, but RTP mode does. */ 113 #define TARGET_HAVE_CTORS_DTORS false 114 #define VXWORKS_OVERRIDE_OPTIONS /* empty */ 115 116 /* No math library needed. */ 117 #define MATH_LIBRARY "" 118 119 /* No profiling. */ 120 #define VXWORKS_FUNCTION_PROFILER(FILE, LABELNO) do \ 121 { \ 122 sorry ("profiler support for VxWorks"); \ 123 } while (0) 124 125 /* We occasionally need to distinguish between the VxWorks variants. */ 126 #define VXWORKS_KIND_NORMAL 1 127 #define VXWORKS_KIND_AE 2 128
Indexes created Sun Mar 01 05:31:48 UTC 2026