Imported gcc-4.4.3

[msp430-gcc.git] / gcc / config / rs6000 / vxworks.h

diff --git a/gcc/config/rs6000/vxworks.h b/gcc/config/rs6000/vxworks.h
new file mode 100644 (file)
index 0000000..cfd11eb
--- /dev/null
+++ b/gcc/config/rs6000/vxworks.h
@@ -0,0 +1,139 @@
+/* Definitions of target machine for GNU compiler.  Vxworks PowerPC version.
+   Copyright (C) 1996, 2000, 2002, 2003, 2004, 2005, 2007
+   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/>.  */
+
+/* Note to future editors: VxWorks is mostly an EABI target.  We do
+   not use rs6000/eabi.h because we would have to override most of
+   it anyway.  However, if you change that file, consider making
+   analogous changes here too.  */
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (PowerPC VxWorks)");
+
+/* CPP predefined macros.  */
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS()               \
+  do                                           \
+    {                                          \
+      builtin_define ("__ppc");                        \
+      builtin_define ("__EABI__");             \
+      builtin_define ("__ELF__");              \
+      builtin_define ("__vxworks");            \
+      builtin_define ("__VXWORKS__");          \
+      if (!TARGET_SOFT_FLOAT)                  \
+       builtin_define ("__hardfp");            \
+                                               \
+      /* C89 namespace violation! */           \
+      builtin_define ("CPU_FAMILY=PPC");       \
+    }                                          \
+  while (0)
+
+/* Only big endian PPC is supported by VxWorks.  */
+#undef BYTES_BIG_ENDIAN
+#define BYTES_BIG_ENDIAN 1
+
+/* We have to kill off the entire specs set created by rs6000/sysv4.h
+   and substitute our own set.  The top level vxworks.h has done some
+   of this for us.  */
+
+#undef SUBTARGET_EXTRA_SPECS
+#undef CPP_SPEC
+#undef CC1_SPEC
+#undef ASM_SPEC
+
+#define SUBTARGET_EXTRA_SPECS /* none needed */
+
+/* FIXME: The only reason we allow no -mcpu switch at all is because
+   config-ml.in insists on a "." multilib. */
+#define CPP_SPEC \
+"%{!DCPU=*:              \
+   %{mcpu=403 : -DCPU=PPC403  ; \
+     mcpu=405 : -DCPU=PPC405  ; \
+     mcpu=440 : -DCPU=PPC440  ; \
+     mcpu=603 : -DCPU=PPC603  ; \
+     mcpu=604 : -DCPU=PPC604  ; \
+     mcpu=860 : -DCPU=PPC860  ; \
+     mcpu=8540: -DCPU=PPC85XX ; \
+              : -DCPU=PPC604  }}" \
+VXWORKS_ADDITIONAL_CPP_SPEC
+
+#define CC1_SPEC                                               \
+"%{G*} %{mno-sdata:-msdata=none} %{msdata:-msdata=default}     \
+ %{mlittle|mlittle-endian:-mstrict-align}                      \
+ %{profile: -p}                \
+ %{fvec:-maltivec} %{fvec-eabi:-maltivec -mabi=altivec}"
+
+#define ASM_SPEC \
+"%(asm_cpu) \
+ %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
+ %{v:-v} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
+ %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} -mbig"
+
+#undef  LIB_SPEC
+#define LIB_SPEC VXWORKS_LIB_SPEC
+#undef  LINK_SPEC
+#define LINK_SPEC VXWORKS_LINK_SPEC
+#undef  STARTFILE_SPEC
+#define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
+#undef  ENDFILE_SPEC
+#define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
+
+/* There is no default multilib.  */
+#undef MULTILIB_DEFAULTS
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT \
+  (MASK_POWERPC | MASK_NEW_MNEMONICS | MASK_EABI | MASK_STRICT_ALIGN)
+
+#undef PROCESSOR_DEFAULT
+#define PROCESSOR_DEFAULT PROCESSOR_PPC604
+
+/* Nor sdata, for kernel mode.  We use this in
+   SUBSUBTARGET_INITIALIZE_OPTIONS, after rs6000_rtp has been initialized.  */
+#undef SDATA_DEFAULT_SIZE
+#define SDATA_DEFAULT_SIZE (TARGET_VXWORKS_RTP ? 8 : 0)
+
+#undef  STACK_BOUNDARY
+#define STACK_BOUNDARY (16*BITS_PER_UNIT)
+/* Override sysv4.h, reset to the default.  */
+#undef  PREFERRED_STACK_BOUNDARY
+
+/* Make -mcpu=8540 imply SPE.  ISEL is automatically enabled, the
+   others must be done by hand.  Handle -mrtp.  Disable -fPIC
+   for -mrtp - the VxWorks PIC model is not compatible with it.  */
+#undef SUBSUBTARGET_OVERRIDE_OPTIONS
+#define SUBSUBTARGET_OVERRIDE_OPTIONS          \
+  do {                                         \
+    if (TARGET_E500)                           \
+      {                                                \
+       rs6000_spe = 1;                         \
+       rs6000_spe_abi = 1;                     \
+       rs6000_float_gprs = 1;                  \
+      }                                                \
+                                               \
+  if (!g_switch_set)                           \
+    g_switch_value = SDATA_DEFAULT_SIZE;       \
+  VXWORKS_OVERRIDE_OPTIONS;                    \
+  } while (0)
+
+/* No _mcount profiling on VxWorks.  */
+#undef FUNCTION_PROFILER
+#define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO)