netbsd.h (TARGET_HAS_F_SETLKW): define.

* config/netbsd.h (TARGET_HAS_F_SETLKW): define.
Split a.out-specific bits into...
* config/netbsd-aout.h: ...this.
* config/netbsd-elf.h: New file.
* config/alpha/netbsd-elf.h: Remove.
* config/alpha/netbsd.h: Rewrite for a NetBSD/alpha ELF target.
* config/i386/netbsd-elf.h (LIB_SPEC): Remove.
(STARTFILE_SPEC): Remove redundant definition.
(ENDFILE_SPEC): Likewise.
(LINK_SPEC): Likewise.
(CPP_SPEC): Likewise.
(ASM_SPEC): Likewise.
(LIB_SPEC): Likewise.
(SWITCH_TAKES_ARG): Likewise.
(TARGET_MEM_FUNCTIONS): Likewise.
(CPP_PREDEFINES): Redefine.
(ASM_FINAL_SPEC): Remove redefinition.
(ASM_COMMENT_START): Redefine.
(FUNCTION_PROFILER): Define.
(TARGET_VERSION): Redefine.
Comment and formatting cleanup.
* config/i386/netbsd.h: Include <netbsd-aout.h>.
* config/m68k/netbsd.h: Include <netbsd-aout.h>.
* config/mips/netbsd.h: Rewrite for NetBSD/mips ELF target,
big- or little-endian.
* config/ns32k/netbsd.h: Include <netbsd-aout.h>.
* config.gcc (*-*-netbsd*): Add definitions common to all
NetBSD configs.
(alpha*-*-netbsd*): Remove redundant xm_defines, gas, and
gnu_ld definitions.  Add netbsd-elf.h to and remove
alpha/netbsd-elf.h from tm_file.  Remove alpha/t-crtfm from
tmake_file, and don't lose previous tmake_file contents.
(arm*-*-netbsd*): Add netbsd-aout.h to tm_file.
(i[34567]86-*-netbsdelf*): Remove redundant xm_defines, gas, and
gnu_ld definitions.  Add netbsd-elf.h to tm_file.
(mips-dec-netbsd*): Remove as alias for mipsel-*-netbsd*.
(mipsel-*-netbsd*): Rename this to...
(mips*-*-netbsd*): ...this.  Add elfos.h to tm_file.  Add
mips/little.h to tm_file for mips*el-*.
(powerpc-*-netbsd*): Remove redundant xm_defines definition.
(sparc-*-netbsd*): Add netbsd-aout.h to tm_file.
(vax-*-netbsd*): Add netbsd-aout.h to tm_file.

From-SVN: r49064

1 files changed, 215 insertions, 0 deletions

diff --git a/gcc/config/netbsd-aout.h b/gcc/config/netbsd-aout.h
new file mode 100644
index 0000000..867f99a
--- /dev/null
+++ b/gcc/config/netbsd-aout.h
@@ -0,0 +1,215 @@
+/* Common configuration file for NetBSD a.out targets.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   Contributed by Wasabi Systems, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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)
+any later version.
+
+GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* This defines which switch letters take arguments. */
+
+#undef SWITCH_TAKES_ARG
+#define SWITCH_TAKES_ARG(CHAR)		\ 
+  (DEFAULT_SWITCH_TAKES_ARG(CHAR)	\
+   || (CHAR) == 'R')
+
+
+/* Provide an ASM_SPEC appropriate for NetBSD.  Currently we only deal
+   with the options for generating PIC code.  */
+
+#undef ASM_SPEC
+#define ASM_SPEC " %| %{fpic:-k} %{fPIC:-k -K}"
+
+
+/* Provide a STARTFILE_SPEC appropriate for NetBSD a.out.  Here we
+   provide support for the special GCC option -static.  */
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC			\
+  "%{!shared:				\
+     %{pg:gcrt0%O%s}			\
+     %{!pg:				\
+       %{p:mcrt0%O%s}			\
+       %{!p:				\
+	 %{!static:crt0%O%s}		\
+	 %{static:scrt0%O%s}}}}		\
+   %{shared:c++rt0%O%s}"
+
+/* Provide a LINK_SPEC appropriate for NetBSD a.out.  Here we provide
+   support for the special GCC options -static, -assert, and -nostdlib.  */
+
+#undef LINK_SPEC
+#define LINK_SPEC			\
+  "%{nostdlib:-nostdlib}		\
+   %{!shared:				\
+     %{!nostdlib:			\
+       %{!r*:				\
+	 %{!e*:-e start}}}		\
+     -dc -dp				\
+     %{static:-Bstatic}}		\
+   %{shared:-Bshareable}		\
+   %{R*}				\
+   %{assert*}"
+
+
+/* Some imports from svr4.h in support of shared libraries.  */
+
+/* Define the strings used for the .type, .size, and .set directives.
+   These strings generally do not vary from one system running NetBSD
+   to another, but if a given system needs to use different pseudo-op
+   names for these, they may be overridden in the file included after
+   this one.  */
+
+#undef TYPE_ASM_OP
+#undef SIZE_ASM_OP
+#undef SET_ASM_OP                
+#define TYPE_ASM_OP	"\t.type\t"
+#define SIZE_ASM_OP	"\t.size\t"
+#define SET_ASM_OP	"\t.set\t"
+
+
+/* This is how we tell the assembler that a symbol is weak.  */
+
+#undef ASM_WEAKEN_LABEL
+#define ASM_WEAKEN_LABEL(FILE,NAME)					\
+  do 									\
+    {									\
+      fputs ("\t.globl\t", FILE); assemble_name (FILE, NAME);		\
+      fputc ('\n', FILE);						\
+      fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME);		\
+      fputc ('\n', FILE);						\
+    }									\
+  while (0)
+
+
+/* The following macro defines the format used to output the second
+   operand of the .type assembler directive.  Different svr4 assemblers
+   expect various different forms of this operand.  The one given here
+   is just a default.  You may need to override it in your machine-
+   specific tm.h file (depending on the particulars of your assembler).  */
+
+#undef TYPE_OPERAND_FMT
+#define TYPE_OPERAND_FMT	"@%s"
+
+
+/* Write the extra assembler code needed to declare a function's result.
+   Most svr4 assemblers don't require any special declaration of the
+   result value, but there are exceptions.  */
+
+#ifndef ASM_DECLARE_RESULT
+#define ASM_DECLARE_RESULT(FILE, RESULT)
+#endif
+
+
+/* These macros generate the special .type and .size directives which
+   are used to set the corresponding fields of the linker symbol table
+   entries in an ELF object file under SVR4 (and a.out on NetBSD).
+   These macros also output the starting labels for the relevant
+   functions/objects.  */
+
+/* Write the extra assembler code needed to declare a function properly.
+   Some svr4 assemblers need to also have something extra said about the
+   function's return value.  We allow for that here.  */
+
+#undef ASM_DECLARE_FUNCTION_NAME
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
+  do									\
+    {									\
+      fprintf (FILE, "%s", TYPE_ASM_OP);				\
+      assemble_name (FILE, NAME);					\
+      putc (',', FILE);							\
+      fprintf (FILE, TYPE_OPERAND_FMT, "function");			\
+      putc ('\n', FILE);						\
+      ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));			\
+      ASM_OUTPUT_LABEL(FILE, NAME);					\
+    }									\
+  while (0)
+
+
+/* Write the extra assembler code needed to declare an object properly.  */
+
+#undef ASM_DECLARE_OBJECT_NAME
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)			\
+  do									\
+    {									\
+      fprintf (FILE, "%s", TYPE_ASM_OP);				\
+      assemble_name (FILE, NAME);					\
+      putc (',', FILE);							\
+      fprintf (FILE, TYPE_OPERAND_FMT, "object");			\
+      putc ('\n', FILE);						\
+      size_directive_output = 0;					\
+      if (!flag_inhibit_size_directive && DECL_SIZE (DECL))		\
+	{								\
+	  size_directive_output = 1;					\
+	  fprintf (FILE, "%s", SIZE_ASM_OP);				\
+	  assemble_name (FILE, NAME);					\
+	  fprintf (FILE, ",%d\n",					\
+	           int_size_in_bytes (TREE_TYPE (DECL)));		\
+	}								\
+      ASM_OUTPUT_LABEL(FILE, NAME);					\
+    }
+  while (0)
+
+
+/* Output the size directive for a decl in rest_of_decl_compilation
+   in the case where we did not do so before the initializer.
+   Once we find the error_mark_node, we know that the value of
+   size_directive_output was set
+   by ASM_DECLARE_OBJECT_NAME when it was run for the same decl.  */
+
+#undef ASM_FINISH_DECLARE_OBJECT
+#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)	\
+  do									\
+    {									\
+      const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);		\
+      if (!flag_inhibit_size_directive && DECL_SIZE (DECL)		\
+	  && ! AT_END && TOP_LEVEL					\
+	  && DECL_INITIAL (DECL) == error_mark_node			\
+	  && !size_directive_output)					\
+	{								\
+	  size_directive_output = 1;					\
+	  fprintf (FILE, "%s", SIZE_ASM_OP);				\
+	  assemble_name (FILE, name);					\
+	  fprintf (FILE, ",%d\n",					\
+		   int_size_in_bytes (TREE_TYPE (DECL)));		\
+	}								\
+    }									\
+  while (0)
+
+
+/* This is how to declare the size of a function.  */
+
+#undef ASM_DECLARE_FUNCTION_SIZE
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)			\
+  do									\
+    {									\
+      if (!flag_inhibit_size_directive)					\
+	{								\
+	  char label[256];						\
+	  static int labelno;						\
+	  labelno++;							\
+	  ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno);		\
+	  ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno);		\
+	  fprintf (FILE, "%s", SIZE_ASM_OP);				\
+	  assemble_name (FILE, (FNAME));				\
+	  fprintf (FILE, ",");						\
+	  assemble_name (FILE, label);					\
+	  fprintf (FILE, "-");						\
+	  assemble_name (FILE, (FNAME));				\
+	  putc ('\n', FILE);						\
+	}								\
+    }									\
+  while (0)