Remove MIPS_DEBUGGING_INFO support

	* dwarf2cfi.c (def_cfa_0): Remove MIPS_DEBUGGING_INFO handling.
	(dwarf2out_do_cfi_asm): Likewise.
	* dwarf2out.c (output_call_frame_info): Remove MIPS_DEBUGGING_INFO
	handling.
	(add_data_member_location_attribute): Likewise.
	(gen_array_type_die): Likewise.
	(gen_subprogram_die): Likewise.
	(gen_producer_string): Likewise.
	* sdbout.c (sdbout_begin_prologue): Declare unconditionally.
	Remove MIPS_DEBUGGING_INFO handling.
	(sdb_debug_hooks): Likewise.
	(sdbout_begin_block): Likewise.
	(sdbout_end_block): Likewise.
	(sdbout_begin_prologue): Likewise.
	(sdbout_start_source_file): Likewise.
	(sdbout_end_source_file): Likewise.
	(sdbout_init): Likewise.
	* system.h (MIPS_DEBUGGING_INFO): Poison.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@185395 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 77 deletions

diff --git a/gcc/sdbout.c b/gcc/sdbout.c
index 255c68e7b04..6f24933d8df 100644
--- a/gcc/sdbout.c
+++ b/gcc/sdbout.c
@@ -1,6 +1,6 @@
 /* Output sdb-format symbol table information from GNU compiler.
    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
+   2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, 2012
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -120,9 +120,7 @@ static void sdbout_end_block		(unsigned int, unsigned int);
 static void sdbout_source_line		(unsigned int, const char *, int, bool);
 static void sdbout_end_epilogue		(unsigned int, const char *);
 static void sdbout_global_decl		(tree);
-#ifndef MIPS_DEBUGGING_INFO
 static void sdbout_begin_prologue	(unsigned int, const char *);
-#endif
 static void sdbout_end_prologue		(unsigned int, const char *);
 static void sdbout_begin_function	(tree);
 static void sdbout_end_function		(unsigned int);
@@ -275,33 +273,6 @@ do { fprintf (asm_out_file, "\t.tag\t");	\
   if ((int) line <= sdb_begin_function_line) \
     line = sdb_begin_function_line + 1
 
-/* Perform linker optimization of merging header file definitions together
-   for targets with MIPS_DEBUGGING_INFO defined.  This won't work without a
-   post 960826 version of GAS.  Nothing breaks with earlier versions of GAS,
-   the optimization just won't be done.  The native assembler already has the
-   necessary support.  */
-
-#ifdef MIPS_DEBUGGING_INFO
-
-/* ECOFF linkers have an optimization that does the same kind of thing as
-   N_BINCL/E_INCL in stabs: eliminate duplicate debug information in the
-   executable.  To achieve this, GCC must output a .file for each file
-   name change.  */
-
-/* This is a stack of input files.  */
-
-struct sdb_file
-{
-  struct sdb_file *next;
-  const char *name;
-};
-
-/* This is the top of the stack.  */
-
-static struct sdb_file *current_file;
-
-#endif /* MIPS_DEBUGGING_INFO */
-
 /* The debug hooks structure.  */
 const struct gcc_debug_hooks sdb_debug_hooks =
 {
@@ -316,15 +287,8 @@ const struct gcc_debug_hooks sdb_debug_hooks =
   sdbout_end_block,		         /* end_block */
   debug_true_const_tree,	         /* ignore_block */
   sdbout_source_line,		         /* source_line */
-#ifdef MIPS_DEBUGGING_INFO
-  /* Defer on MIPS systems so that parameter descriptions follow
-     function entry.  */
-  debug_nothing_int_charstar,	         /* begin_prologue */
-  sdbout_end_prologue,		         /* end_prologue */
-#else
   sdbout_begin_prologue,	         /* begin_prologue */
   debug_nothing_int_charstar,	         /* end_prologue */
-#endif
   debug_nothing_int_charstar,	         /* begin_epilogue */
   sdbout_end_epilogue,		         /* end_epilogue */
   sdbout_begin_function,	         /* begin_function */
@@ -1500,12 +1464,8 @@ sdbout_begin_block (unsigned int line, unsigned int n)
   MAKE_LINE_SAFE (line);
 
   /* The SCO compiler does not emit a separate block for the function level
-     scope, so we avoid it here also.  However, mips ECOFF compilers do emit
-     a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined.  */
-#ifndef MIPS_DEBUGGING_INFO
-  if (n != 1)
-#endif
-    PUT_SDB_BLOCK_START (line - sdb_begin_function_line);
+     scope, so we avoid it here also.  */
+  PUT_SDB_BLOCK_START (line - sdb_begin_function_line);
 
   if (n == 1)
     {
@@ -1534,12 +1494,9 @@ sdbout_end_block (unsigned int line, unsigned int n ATTRIBUTE_UNUSED)
   MAKE_LINE_SAFE (line);
 
   /* The SCO compiler does not emit a separate block for the function level
-     scope, so we avoid it here also.  However, mips ECOFF compilers do emit
-     a separate block, so we retain it when MIPS_DEBUGGING_INFO is defined.  */
-#ifndef MIPS_DEBUGGING_INFO
+     scope, so we avoid it here also.  */
   if (n != 1)
-#endif
-  PUT_SDB_BLOCK_END (line - sdb_begin_function_line);
+    PUT_SDB_BLOCK_END (line - sdb_begin_function_line);
 }
 
 /* Output a line number symbol entry for source file FILENAME and line
@@ -1572,19 +1529,16 @@ sdbout_begin_function (tree decl ATTRIBUTE_UNUSED)
   sdbout_symbol (current_function_decl, 0);
 }
 
-/* Called at beginning of function body (before or after prologue,
-   depending on MIPS_DEBUGGING_INFO).  Record the function's starting
-   line number, so we can output relative line numbers for the other
-   lines.  Describe beginning of outermost block.  Also describe the
-   parameter list.  */
+/* Called at beginning of function body after prologue.  Record the
+   function's starting line number, so we can output relative line numbers
+   for the other lines.  Describe beginning of outermost block.  Also
+   describe the parameter list.  */
 
-#ifndef MIPS_DEBUGGING_INFO
 static void
 sdbout_begin_prologue (unsigned int line, const char *file ATTRIBUTE_UNUSED)
 {
   sdbout_end_prologue (line, file);
 }
-#endif
 
 static void
 sdbout_end_prologue (unsigned int line, const char *file ATTRIBUTE_UNUSED)
@@ -1651,14 +1605,6 @@ static void
 sdbout_start_source_file (unsigned int line ATTRIBUTE_UNUSED,
 			  const char *filename ATTRIBUTE_UNUSED)
 {
-#ifdef MIPS_DEBUGGING_INFO
-  struct sdb_file *n = XNEW (struct sdb_file);
-
-  n->next = current_file;
-  n->name = filename;
-  current_file = n;
-  output_file_directive (asm_out_file, filename);
-#endif
 }
 
 /* Revert to reading a previous source file.  */
@@ -1666,14 +1612,6 @@ sdbout_start_source_file (unsigned int line ATTRIBUTE_UNUSED,
 static void
 sdbout_end_source_file (unsigned int line ATTRIBUTE_UNUSED)
 {
-#ifdef MIPS_DEBUGGING_INFO
-  struct sdb_file *next;
-
-  next = current_file->next;
-  free (current_file);
-  current_file = next;
-  output_file_directive (asm_out_file, current_file->name);
-#endif
 }
 
 /* Set up for SDB output at the start of compilation.  */
@@ -1683,12 +1621,6 @@ sdbout_init (const char *input_file_name ATTRIBUTE_UNUSED)
 {
   tree t;
 
-#ifdef MIPS_DEBUGGING_INFO
-  current_file = XNEW (struct sdb_file);
-  current_file->next = NULL;
-  current_file->name = input_file_name;
-#endif
-
   deferred_global_decls = VEC_alloc (tree, gc, 12);
 
   /* Emit debug information which was queued by sdbout_symbol before