-/* Definitions of target machine for GCC. VxWorks i586 version.
- Copyright (C) 2003 Free Software Foundation, Inc.
+/* IA32 VxWorks target definitions for GNU compiler.
+ Copyright (C) 2003-2023 Free Software Foundation, Inc.
+ Updated 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 2, or (at your option)
+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,
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 COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-
-#define HANDLE_SYSV_PRAGMA 1
-
-#undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (80586, VxWorks syntax)");
-
-/* Prefix for internally generated assembler labels. If we aren't using
- underscores, we are using prefix `.'s to identify labels that should
- be ignored, as in `i386/gas.h' --karl@cs.umb.edu */
-
-#define LPREFIX "L"
-
-/* Assembler pseudos to introduce constants of various size. */
-
-#define ASM_SHORT "\t.word\t"
-#define ASM_LONG "\t.long\t"
-#define ASM_QUAD "\t.quad\t" /* Should not be used for 32bit compilation. */
-
-
-#define ASM_OUTPUT_ALIGN(FILE,LOG) \
- if ((LOG)!=0) fprintf ((FILE), "\t.balign %d\n", 1<<(LOG))
-
-#undef ASM_SPEC
-#define ASM_SPEC "%{v:-V} %{Qy:} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
-
-#define TARGET_OS_CPP_BUILTINS() \
- do \
- { \
- builtin_define ("__vxworks"); \
- builtin_assert ("system=unix"); \
- \
- if (TARGET_386) \
- builtin_define ("CPU=I80386"); \
- else if (TARGET_486) \
- builtin_define ("CPU=I80486"); \
- else if (TARGET_PENTIUM) \
- { \
- builtin_define ("CPU=PENTIUM"); \
- builtin_define ("CPU_VARIANT=PENTIUM"); \
- } \
- else if (TARGET_PENTIUMPRO) \
- { \
- builtin_define ("CPU=PENTIUM2"); \
- builtin_define ("CPU_VARIANT=PENTIUMPRO"); \
- } \
- else if (TARGET_PENTIUM4) \
- { \
- builtin_define ("CPU=PENTIUM4"); \
- builtin_define ("CPU_VARIANT=PENTIUM4"); \
- } \
- } \
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+/* VxWorks after 7 SR0600 use the ELF ABI and the system environment is llvm
+ based. Earlier versions have GNU based environment components and use the
+ same ABI as Solaris 2. */
+
+#if TARGET_VXWORKS7
+
+#undef VXWORKS_PERSONALITY
+#define VXWORKS_PERSONALITY "llvm"
+
+#else
+
+#undef ASM_OUTPUT_ALIGNED_BSS
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+ asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
+
+#undef TARGET_SUBTARGET_DEFAULT
+#define TARGET_SUBTARGET_DEFAULT \
+ (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_VECT8_RETURNS)
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE (TARGET_LP64 ? "long int" : "int")
+
+#undef SIZE_TYPE
+#define SIZE_TYPE (TARGET_LP64 ? "long unsigned int" : "unsigned int")
+
+/* We cannot use PC-relative accesses for VxWorks PIC because there is no
+ fixed gap between segments. */
+#undef ASM_PREFERRED_EH_DATA_FORMAT
+
+#if TARGET_64BIT_DEFAULT
+#undef VXWORKS_SYSCALL_LIBS_RTP
+#define VXWORKS_SYSCALL_LIBS_RTP "-lsyscall"
+#endif
+
+#endif
+
+/* Provide our target specific DEBUGGER_REGNO. VxWorks relies on
+ the SVR4 numbering. */
+
+#undef DEBUGGER_REGNO
+#define DEBUGGER_REGNO(n) \
+ (TARGET_64BIT ? debugger64_register_map[n] : svr4_debugger_register_map[n])
+
+/* CPU macro definitions, ordered to account for VxWorks 7 not
+ supporting CPUs older than PENTIUM4 since SR0650. */
+
+#define VX_CPUDEF(CPU) builtin_define(VX_CPU_PREFIX "CPU=" #CPU)
+#define VX_CPUVDEF(CPU) builtin_define(VX_CPU_PREFIX "CPU_VARIANT=" #CPU)
+
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ VXWORKS_OS_CPP_BUILTINS (); \
+ if (TARGET_64BIT) \
+ VX_CPUDEF (X86_64); \
+ else if (TARGET_CPU_P (PENTIUM4)) \
+ { \
+ VX_CPUDEF (PENTIUM4); \
+ VX_CPUVDEF (PENTIUM4); \
+ } \
+ else if (TARGET_CPU_P (CORE2)) \
+ VX_CPUDEF (CORE2); \
+ else if (TARGET_CPU_P (NEHALEM)) \
+ VX_CPUDEF (NEHALEM); \
+ else if (TARGET_CPU_P (SANDYBRIDGE)) \
+ VX_CPUDEF (SANDYBRIDGE); \
+ else if (TARGET_CPU_P (HASWELL)) \
+ VX_CPUDEF (HASWELL); \
+ else if (TARGET_CPU_P (SILVERMONT)) \
+ VX_CPUDEF (SILVERMONT); \
+ else if (TARGET_CPU_P (SKYLAKE) || TARGET_CPU_P (SKYLAKE_AVX512)) \
+ VX_CPUDEF (SKYLAKE); \
+ else if (TARGET_CPU_P (GOLDMONT)) \
+ VX_CPUDEF (GOLDMONT); \
+ else if (TARGET_VXWORKS7) \
+ VX_CPUDEF (PENTIUM4); \
+ else if (TARGET_CPU_P (I386)) \
+ VX_CPUDEF (I80386); \
+ else if (TARGET_CPU_P (I486)) \
+ VX_CPUDEF (I80486); \
+ else if (TARGET_CPU_P (PENTIUM)) \
+ { \
+ VX_CPUDEF (PENTIUM); \
+ VX_CPUVDEF (PENTIUM); \
+ } \
+ else if (TARGET_CPU_P (PENTIUMPRO)) \
+ { \
+ VX_CPUDEF (PENTIUM2); \
+ VX_CPUVDEF (PENTIUMPRO); \
+ } \
+ else \
+ VX_CPUDEF (I80386); \
+ } \
while (0)
-
+#undef CPP_SPEC
+#define CPP_SPEC VXWORKS_ADDITIONAL_CPP_SPEC
+#undef CC1_SPEC
+#define CC1_SPEC VXWORKS_CC1_SPEC
+#undef LIB_SPEC
+#define LIB_SPEC VXWORKS_LIB_SPEC
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
+#undef LINK_SPEC
+#define LINK_SPEC VXWORKS_LINK_SPEC
+
+#undef SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES EXTRA_SUBTARGET_SWITCHES
+
+#undef SUBTARGET_OVERRIDE_OPTIONS
+#define SUBTARGET_OVERRIDE_OPTIONS VXWORKS_OVERRIDE_OPTIONS
+
+/* No _mcount profiling on VxWorks. */
+#undef FUNCTION_PROFILER
+#define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO)
+
+/* Define this to be nonzero if static stack checking is supported. */
+#define STACK_CHECK_STATIC_BUILTIN 1
+
+/* This platform supports the probing method of stack checking (RTP mode).
+ 8K is reserved in the stack to propagate exceptions in case of overflow.
+ On 64-bit targets, we double that size. */
+
+#define STACK_CHECK_PROTECT (TARGET_64BIT_DEFAULT ? 16 * 1024 : 8 * 1024)
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