Alpha MD bits for Gcc 3.1.

1 files changed, 37 insertions, 115 deletions

diff --git a/contrib/gcc/config/alpha/freebsd.h b/contrib/gcc/config/alpha/freebsd.h
index 1584f42..d8f71f0 100644
--- a/contrib/gcc/config/alpha/freebsd.h
+++ b/contrib/gcc/config/alpha/freebsd.h
@@ -1,6 +1,6 @@
-/* Definitions for DEC AXP Alpha running FreeBSD using the ELF format
-   Copyright (C) 2000 Free Software Foundation, Inc.
-   Contributed by David O'Brien <obrien@FreeBSD.org>
+/* Definitions for DEC Alpha/AXP running FreeBSD using the ELF format
+   Copyright (C) 2000, 2002 Free Software Foundation, Inc.
+   Contributed by David E. O'Brien <obrien@FreeBSD.org> and BSDi.
 
 This file is part of GNU CC.
 
@@ -16,26 +16,26 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
-/* This is used on Alpha platforms that use the ELF format.
-   This was taken from the NetBSD configuration, and modified
-   for FreeBSD/Alpha by Hidetoshi Shimokawa <simokawa@FreeBSD.ORG> */
 
 /* $FreeBSD$ */
 
 
-/* Names to predefine in the preprocessor for this target machine.
-   XXX FreeBSD, by convention, shouldn't do __alpha, but lots of applications
-   expect it because that's what OSF/1 does.  */
+/* Provide a CPP_SPEC appropriate for FreeBSD/alpha.  Besides the dealing with
+   the GCC option `-posix', and PIC issues as on all FreeBSD platforms, we must
+   deal with the Alpha's FP issues.  */
 
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES							\
-  "-D__alpha__ -D__alpha -Acpu(alpha) -Amachine(alpha)"			\
-  FBSD_CPP_PREDEFINES
+#undef  CPP_SPEC
+#define CPP_SPEC "%(cpp_cpu) %(cpp_subtarget) -D__ELF__			\
+  %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__}		\
+  %{posix:-D_POSIX_SOURCE}						\
+  %{mieee:-D_IEEE_FP}							\
+  %{mieee-with-inexact:-D_IEEE_FP -D_IEEE_FP_INEXACT}"
 
-#undef LINK_SPEC
-#define LINK_SPEC "-m elf64alpha					\
+#undef  LINK_SPEC
+#define LINK_SPEC "%{G*} %{relax:-relax}				\
   %{p:%e`-p' not supported; use `-pg' and gprof(1)}			\
   %{Wl,*:%*}								\
   %{assert*} %{R*} %{rpath*} %{defsym*}					\
@@ -47,31 +47,14 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
       %{!dynamic-linker:-dynamic-linker /usr/libexec/ld-elf.so.1}}	\
     %{static:-Bstatic}}"
 
-/* Provide an ASM_SPEC appropriate for a FreeBSD/Alpha target.  This differs
-   from the generic FreeBSD ASM_SPEC in that no special handling of PIC is
-   necessary on the Alpha.  */
+/* We now have to provide a STARTFILE_SPEC because of a moronic pigheaded
+   Linuxism(glibc'ism) that was added to alpha/elf.h.  */
 
-#undef ASM_SPEC
-#define ASM_SPEC " %| %{mcpu=*:-m%*}"
-
-#undef ASM_FINAL_SPEC
-
-/* Provide a STARTFILE_SPEC for FreeBSD that is compatible with the
-   non-aout version used on i386.  */
-
-#undef	STARTFILE_SPEC
-#define STARTFILE_SPEC							\
-  "%{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}	\
-     crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
-
-/* Provide a ENDFILE_SPEC appropriate for ELF.  Here we tack on the
-   magical crtend.o file which provides part of the support for
-   getting C++ file-scope static object constructed before entering
-   `main', followed by a normal ELF "finalizer" file, `crtn.o'.  */
-
-#undef	ENDFILE_SPEC
-#define ENDFILE_SPEC \
-  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+ #undef	 STARTFILE_SPEC
+ #define STARTFILE_SPEC \
+   "%{!shared: \
+      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
+   crti.o%s %{shared:crtbeginS.o%s}%{!shared:crtbegin.o%s}"
 
 
 /************************[  Target stuff  ]***********************************/
@@ -83,6 +66,12 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 /* alpha.h gets this wrong for FreeBSD.  We use the GCC defaults instead.  */
 #undef WCHAR_TYPE
 
+#undef  WCHAR_UNSIGNED
+#define WCHAR_UNSIGNED	0
+
+#undef  WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE	32
+
 /* Handle cross-compilation on 32-bits machines (such as i386) for 64-bits
    machines (Alpha in this case).  */
 
@@ -98,14 +87,11 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 /* This is the pseudo-op used to generate a 64-bit word of data with a
    specific value in some section.  */
 
-#undef  INT_ASM_OP
-#define INT_ASM_OP		".quad"
-
 #undef  TARGET_VERSION
 #define TARGET_VERSION	fprintf (stderr, " (FreeBSD/Alpha ELF)");
 
+#define TARGET_ELF		1
 #define TARGET_AOUT		(0)
-#define TARGET_ELF		(1)
 #define TARGET_UNDERSCORES	(0)
 
 #undef OBJECT_FORMAT_COFF
@@ -118,7 +104,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 /* Show that we need a GP when profiling.  */
 #undef  TARGET_PROFILING_NEEDS_GP
-#define TARGET_PROFILING_NEEDS_GP
+#define TARGET_PROFILING_NEEDS_GP 1
 
 /* We always use gas here, so we don't worry about ECOFF assembler problems.  */
 #undef  TARGET_GAS
@@ -127,76 +113,6 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 /************************[  Assembler stuff  ]********************************/
 
-/* This is how to begin an assembly language file.
-   ELF also needs a .version.  */
-
-#undef  ASM_FILE_START
-#define ASM_FILE_START(FILE)						\
-  {									\
-    alpha_write_verstamp (FILE);					\
-    output_file_directive ((FILE), main_input_filename);		\
-    fprintf ((FILE), "\t.version\t\"01.01\"\n");			\
-    fprintf ((FILE), "\t.set noat\n");					\
-  }
-
-extern void output_file_directive ();
-extern void alpha_output_lineno ();
-
-#undef  ASM_OUTPUT_SOURCE_LINE
-#define ASM_OUTPUT_SOURCE_LINE(STREAM, LINE)				\
-  alpha_output_lineno ((STREAM), (LINE))
-
-/* Switch into a generic section.
-   This is currently only used to support section attributes.
-
-   We make the section read-only and executable for a function decl,
-   read-only for a const data decl, and writable for a non-const data decl.  */
-#undef  ASM_OUTPUT_SECTION_NAME
-#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC)		\
-  fprintf ((FILE), ".section\t%s,\"%s\",@progbits\n", (NAME),		\
-	   (DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" :		\
-	   (DECL) && DECL_READONLY_SECTION ((DECL), (RELOC)) ? "a" : "aw")
-
-/* A C statement or statements to switch to the appropriate
-   section for output of DECL.  DECL is either a `VAR_DECL' node
-   or a constant of some sort.  RELOC indicates whether forming
-   the initial value of DECL requires link-time relocations.  */
-
-#undef  SELECT_SECTION
-#define SELECT_SECTION(DECL, RELOC)					\
-  {									\
-    if (TREE_CODE (DECL) == STRING_CST)					\
-      {									\
-	if (! flag_writable_strings)					\
-	  const_section ();						\
-	else								\
-	  data_section ();						\
-      }									\
-    else if (TREE_CODE (DECL) == VAR_DECL)				\
-      {									\
-	if ((flag_pic && (RELOC))					\
-	    || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)	\
-	    || !DECL_INITIAL (DECL)					\
-	    || (DECL_INITIAL (DECL) != error_mark_node			\
-	    && !TREE_CONSTANT (DECL_INITIAL (DECL))))			\
-	  data_section ();						\
-        else								\
-	  const_section ();						\
-      }									\
-    else								\
-      const_section ();							\
-  }
-
-/* This is how we tell the assembler that two symbols have the same value.  */
-
-#undef  ASM_OUTPUT_DEF
-#define ASM_OUTPUT_DEF(FILE,NAME1,NAME2)				\
-  do {									\
-    assemble_name((FILE), (NAME1));					\
-    fputs(" = ", (FILE));						\
-    assemble_name((FILE), (NAME2));					\
-    fputc('\n', (FILE));						\
-  } while (0)
 
 
 /************************[  Debugger stuff  ]*********************************/
@@ -206,3 +122,9 @@ extern void alpha_output_lineno ();
 
 #undef  DBX_CONTIN_CHAR
 #define DBX_CONTIN_CHAR	'?'
+
+/* Don't default to pcc-struct-return, we want to retain compatibility with
+   older FreeBSD releases AND pcc-struct-return may not be reentrant.  */
+
+#undef  DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 0