125 lines
4.2 KiB
C
125 lines
4.2 KiB
C
/* Target-independent configuration for VxWorks and VxWorks AE.
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Copyright (C) 2005-2021 Free Software Foundation, Inc.
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Contributed by CodeSourcery, LLC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* ------------------------- Common SPEC strings ------------------------- */
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/* Most of these will probably be overridden by subsequent headers. We
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undefine them here just in case, and define VXWORKS_ versions of each,
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to be used in port-specific vxworks.h. */
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#undef LIBGCC_SPEC
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#define LIBGCC_SPEC VXWORKS_LIBGCC_SPEC
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#undef STARTFILE_SPEC
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#undef ENDFILE_SPEC
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/* Most of these macros are overridden in "config/vxworks.h" or
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"config/vxworksae.h" and are here merely for documentation
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purposes. */
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#define VXWORKS_ADDITIONAL_CPP_SPEC ""
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#define VXWORKS_LIB_SPEC ""
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#define VXWORKS_LINK_SPEC ""
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#define VXWORKS_LIBGCC_SPEC ""
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#define VXWORKS_STARTFILE_SPEC ""
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#define VXWORKS_ENDFILE_SPEC ""
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#define VXWORKS_CC1_SPEC ""
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/* ----------------------- Common type descriptions ----------------------- */
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/* Regardless of the target architecture, VxWorks uses a signed 32bit
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integer for wchar_t starting with vx7 SR06xx. An unsigned short
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otherwise. */
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#if TARGET_VXWORKS7
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 32
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#undef WCHAR_TYPE
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#define WCHAR_TYPE (TARGET_VXWORKS64 ? "int" : "long int")
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#else
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 16
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "short unsigned int"
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#endif
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/* The VxWorks headers base wint_t on the definitions used for wchar_t.
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Do the same here to make sure they remain in sync, in case WCHAR_TYPE
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gets redefined for a specific CPU architecture. */
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#undef WINT_TYPE_SIZE
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#define WINT_TYPE_SIZE WCHAR_TYPE_SIZE
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#undef WINT_TYPE
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#define WINT_TYPE WCHAR_TYPE
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/* ---------------------- Debug and unwind info formats ------------------ */
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/* Dwarf2 unwind info is supported, unless overriden by a request for a target
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specific format.
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Taking care of this here allows using DWARF2_UNWIND_INFO in #if conditions
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from the common config/vxworks.h files, included before the cpu
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specializations. Unlike with conditions used in C expressions, where the
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definitions which matter are those at the expression expansion point, use
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in #if constructs requires an accurate definition of the operands at the
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#if point. Since <cpu>/vxworks.h. is typically included after
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config/vxworks.h, #if expressions in the latter can't rely on possible
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redefinitions in the former. */
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#if !ARM_UNWIND_INFO
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#undef DWARF2_UNWIND_INFO
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#define DWARF2_UNWIND_INFO 1
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#endif
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/* VxWorks uses DWARF2 debugging info. */
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#define DWARF2_DEBUGGING_INFO 1
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#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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/* None of these other formats is supported. */
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#undef DBX_DEBUGGING_INFO
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#undef XCOFF_DEBUGGING_INFO
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#undef VMS_DEBUGGING_INFO
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/* ------------------------ Misc configuration bits ---------------------- */
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#if !TARGET_VXWORKS7
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/* VxWorks, prior to version 7, could not have dots in constructor
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labels, because it used a mutant variation of collect2 that
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generates C code instead of assembly. Thus each constructor label
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had to be a legitimate C symbol. */
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# undef NO_DOLLAR_IN_LABEL
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# define NO_DOT_IN_LABEL
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#endif
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/* Kernel mode doesn't have ctors/dtors, but RTP mode does. */
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#define TARGET_HAVE_CTORS_DTORS false
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#define VXWORKS_OVERRIDE_OPTIONS /* empty */
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/* No math library needed. */
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#define MATH_LIBRARY ""
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/* No profiling. */
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#define VXWORKS_FUNCTION_PROFILER(FILE, LABELNO) do \
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{ \
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sorry ("profiler support for VxWorks"); \
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} while (0)
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/* We occasionally need to distinguish between the VxWorks variants. */
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#define VXWORKS_KIND_NORMAL 1
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#define VXWORKS_KIND_AE 2
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