| /* Target-independent configuration for VxWorks and VxWorks AE. |
| Copyright (C) 2005-2021 Free Software Foundation, Inc. |
| Contributed by CodeSourcery, LLC. |
| |
| 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. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* ------------------------- Common SPEC strings ------------------------- */ |
| |
| /* Most of these will probably be overridden by subsequent headers. We |
| undefine them here just in case, and define VXWORKS_ versions of each, |
| to be used in port-specific vxworks.h. */ |
| #undef LIBGCC_SPEC |
| #define LIBGCC_SPEC VXWORKS_LIBGCC_SPEC |
| #undef STARTFILE_SPEC |
| #undef ENDFILE_SPEC |
| |
| /* Most of these macros are overridden in "config/vxworks.h" or |
| "config/vxworksae.h" and are here merely for documentation |
| purposes. */ |
| #define VXWORKS_ADDITIONAL_CPP_SPEC "" |
| #define VXWORKS_LIB_SPEC "" |
| #define VXWORKS_LINK_SPEC "" |
| #define VXWORKS_LIBGCC_SPEC "" |
| #define VXWORKS_STARTFILE_SPEC "" |
| #define VXWORKS_ENDFILE_SPEC "" |
| #define VXWORKS_CC1_SPEC "" |
| |
| /* ----------------------- Common type descriptions ----------------------- */ |
| |
| /* Regardless of the target architecture, VxWorks uses a signed 32bit |
| integer for wchar_t starting with vx7 SR06xx. An unsigned short |
| otherwise. */ |
| #if TARGET_VXWORKS7 |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE 32 |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE (TARGET_VXWORKS64 ? "int" : "long int") |
| |
| #else |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE 16 |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE "short unsigned int" |
| |
| #endif |
| |
| /* The VxWorks headers base wint_t on the definitions used for wchar_t. |
| Do the same here to make sure they remain in sync, in case WCHAR_TYPE |
| gets redefined for a specific CPU architecture. */ |
| #undef WINT_TYPE_SIZE |
| #define WINT_TYPE_SIZE WCHAR_TYPE_SIZE |
| #undef WINT_TYPE |
| #define WINT_TYPE WCHAR_TYPE |
| |
| /* ---------------------- Debug and unwind info formats ------------------ */ |
| |
| /* Dwarf2 unwind info is supported, unless overriden by a request for a target |
| specific format. |
| |
| Taking care of this here allows using DWARF2_UNWIND_INFO in #if conditions |
| from the common config/vxworks.h files, included before the cpu |
| specializations. Unlike with conditions used in C expressions, where the |
| definitions which matter are those at the expression expansion point, use |
| in #if constructs requires an accurate definition of the operands at the |
| #if point. Since <cpu>/vxworks.h. is typically included after |
| config/vxworks.h, #if expressions in the latter can't rely on possible |
| redefinitions in the former. */ |
| #if !ARM_UNWIND_INFO |
| #undef DWARF2_UNWIND_INFO |
| #define DWARF2_UNWIND_INFO 1 |
| #endif |
| |
| /* VxWorks uses DWARF2 debugging info. */ |
| #define DWARF2_DEBUGGING_INFO 1 |
| #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG |
| |
| /* None of these other formats is supported. */ |
| #undef DBX_DEBUGGING_INFO |
| #undef XCOFF_DEBUGGING_INFO |
| #undef VMS_DEBUGGING_INFO |
| |
| /* ------------------------ Misc configuration bits ---------------------- */ |
| |
| #ifndef TARGET_VXWORKS7 |
| /* VxWorks, prior to version 7, could not have dots in constructor |
| labels, because it used a mutant variation of collect2 that |
| generates C code instead of assembly. Thus each constructor label |
| had to be a legitimate C symbol. */ |
| # undef NO_DOLLAR_IN_LABEL |
| # define NO_DOT_IN_LABEL |
| #endif |
| |
| /* Kernel mode doesn't have ctors/dtors, but RTP mode does. */ |
| #define TARGET_HAVE_CTORS_DTORS false |
| #define VXWORKS_OVERRIDE_OPTIONS /* empty */ |
| |
| /* No math library needed. */ |
| #define MATH_LIBRARY "" |
| |
| /* No profiling. */ |
| #define VXWORKS_FUNCTION_PROFILER(FILE, LABELNO) do \ |
| { \ |
| sorry ("profiler support for VxWorks"); \ |
| } while (0) |
| |
| /* We occasionally need to distinguish between the VxWorks variants. */ |
| #define VXWORKS_KIND_NORMAL 1 |
| #define VXWORKS_KIND_AE 2 |