[rfc/rft] Remove tm-alpha.h header file

["Ulrich Weigand" <uweigand at de dot ibm dot com>]

Hello,

this gets rid of the tm-alpha.h file.  The only remaining define is
RA_REGNUM, which is used in mdebugread.c in special-case fix-up code
for incorrect procedure descriptors for the setjmp function.

To eliminate that dependency, this patch moves that fix-up code from
mdebugread.c to the call site in alpha-mdebug-tdep.c.  Note that alpha
is currently the only user of those procedure descriptors anyway.

Tested only to the extent to make sure everything still compiles;
if anyone with access to an Alpha machine could run a regression 
test, I'd appreciate it!  

Bye,
Ulrich

ChangeLog:

	* alpha-mdebug-tdep.c: Include "gdb_string.h".
	(find_proc_desc): Add fix-up code for setjmp procedure descriptor.
	* mdebugread.c (parse_procedure): Remove setjmp fix-up code.
	* Makefile.in (alpha-mdebug-tdep.o): Update dependencies.

	* config/alpha/alpha.mt (DEPRECATED_TM_FILE): Remove.
	* config/alpha/alpha-linux.mt (DEPRECATED_TM_FILE): Remove.
	* config/alpha/alpha-osf1.mt (DEPRECATED_TM_FILE): Remove.
	* config/alpha/fbsd.mt (DEPRECATED_TM_FILE): Remove.
	* config/alpha/tm-alpha.h: Remove file.

diff -urNp gdb-orig/gdb/alpha-mdebug-tdep.c gdb-head/gdb/alpha-mdebug-tdep.c
--- gdb-orig/gdb/alpha-mdebug-tdep.c	2007-10-05 18:19:27.303186513 +0200
+++ gdb-head/gdb/alpha-mdebug-tdep.c	2007-10-05 18:21:59.726353624 +0200
@@ -25,6 +25,7 @@
 #include "gdbcore.h"
 #include "block.h"
 #include "gdb_assert.h"
+#include "gdb_string.h"
 
 #include "alpha-tdep.h"
 #include "mdebugread.h"
@@ -95,11 +96,12 @@ find_proc_desc (CORE_ADDR pc)
   struct block *b = block_for_pc (pc);
   struct mdebug_extra_func_info *proc_desc = NULL;
   struct symbol *sym = NULL;
+  char *sh_name = NULL;
 
   if (b)
     {
       CORE_ADDR startaddr;
-      find_pc_partial_function (pc, NULL, &startaddr, NULL);
+      find_pc_partial_function (pc, &sh_name, &startaddr, NULL);
 
       if (startaddr > BLOCK_START (b))
 	/* This is the "pathological" case referred to in a comment in
@@ -114,6 +116,16 @@ find_proc_desc (CORE_ADDR pc)
     {
       proc_desc = (struct mdebug_extra_func_info *) SYMBOL_VALUE (sym);
 
+      /* Correct incorrect setjmp procedure descriptor from the library
+         to make backtrace through setjmp work.  */
+      if (proc_desc->pdr.pcreg == 0
+	  && strcmp (sh_name, "setjmp") == 0)
+	{
+	  proc_desc->pdr.pcreg = ALPHA_RA_REGNUM;
+	  proc_desc->pdr.regmask = 0x80000000;
+	  proc_desc->pdr.regoffset = -4;
+	}
+
       /* If we never found a PDR for this function in symbol reading,
 	 then examine prologues to find the information.  */
       if (proc_desc->pdr.framereg == -1)
diff -urNp gdb-orig/gdb/config/alpha/alpha-linux.mt gdb-head/gdb/config/alpha/alpha-linux.mt
--- gdb-orig/gdb/config/alpha/alpha-linux.mt	2007-10-05 18:19:27.308185793 +0200
+++ gdb-head/gdb/config/alpha/alpha-linux.mt	2007-10-05 18:21:59.731352904 +0200
@@ -1,4 +1,3 @@
 # Target: Little-endian Alpha
 TDEPFILES= alpha-tdep.o alpha-mdebug-tdep.o alpha-linux-tdep.o \
 	   solib.o solib-svr4.o solib-legacy.o
-DEPRECATED_TM_FILE= tm-alpha.h
diff -urNp gdb-orig/gdb/config/alpha/alpha.mt gdb-head/gdb/config/alpha/alpha.mt
--- gdb-orig/gdb/config/alpha/alpha.mt	2007-10-05 18:19:27.311185361 +0200
+++ gdb-head/gdb/config/alpha/alpha.mt	2007-10-05 18:21:59.734352471 +0200
@@ -1,2 +1 @@
 TDEPFILES= alpha-tdep.o
-DEPRECATED_TM_FILE= tm-alpha.h
diff -urNp gdb-orig/gdb/config/alpha/alpha-osf1.mt gdb-head/gdb/config/alpha/alpha-osf1.mt
--- gdb-orig/gdb/config/alpha/alpha-osf1.mt	2007-10-05 18:19:27.315184784 +0200
+++ gdb-head/gdb/config/alpha/alpha-osf1.mt	2007-10-05 18:21:59.738351895 +0200
@@ -1,3 +1,2 @@
 # Target: Little-endian Alpha
 TDEPFILES= alpha-tdep.o alpha-osf1-tdep.o alpha-mdebug-tdep.o
-DEPRECATED_TM_FILE= tm-alpha.h
diff -urNp gdb-orig/gdb/config/alpha/fbsd.mt gdb-head/gdb/config/alpha/fbsd.mt
--- gdb-orig/gdb/config/alpha/fbsd.mt	2007-10-05 18:19:27.319184208 +0200
+++ gdb-head/gdb/config/alpha/fbsd.mt	2007-10-05 18:21:59.742351318 +0200
@@ -1,4 +1,3 @@
 # Target: FreeBSD/alpha
 TDEPFILES= alpha-tdep.o alpha-mdebug-tdep.o alphabsd-tdep.o alphafbsd-tdep.o \
 	corelow.o solib.o solib-svr4.o
-DEPRECATED_TM_FILE= tm-alpha.h
diff -urNp gdb-orig/gdb/config/alpha/tm-alpha.h gdb-head/gdb/config/alpha/tm-alpha.h
--- gdb-orig/gdb/config/alpha/tm-alpha.h	2007-10-05 18:19:27.322183775 +0200
+++ gdb-head/gdb/config/alpha/tm-alpha.h	1970-01-01 01:00:00.000000000 +0100
@@ -1,27 +0,0 @@
-/* Definitions to make GDB run on an Alpha box under OSF1.  This is
-   also used by the Alpha GNU/Linux target.
-
-   Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2002, 2004, 2007
-   Free Software Foundation, Inc.
-
-   This file is part of GDB.
-
-   This program 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 of the License, or
-   (at your option) any later version.
-
-   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef TM_ALPHA_H
-#define TM_ALPHA_H
-
-#define RA_REGNUM 26		/* XXXJRT needed by mdebugread.c */
-
-#endif /* TM_ALPHA_H */
diff -urNp gdb-orig/gdb/Makefile.in gdb-head/gdb/Makefile.in
--- gdb-orig/gdb/Makefile.in	2007-10-02 18:37:02.000000000 +0200
+++ gdb-head/gdb/Makefile.in	2007-10-05 18:20:47.721828859 +0200
@@ -1735,7 +1735,8 @@ alpha-linux-tdep.o: alpha-linux-tdep.c $
 	$(regcache_h) $(alpha_tdep_h)
 alpha-mdebug-tdep.o: alpha-mdebug-tdep.c $(defs_h) $(frame_h) \
 	$(frame_unwind_h) $(frame_base_h) $(symtab_h) $(gdbcore_h) \
-	$(block_h) $(gdb_assert_h) $(alpha_tdep_h) $(mdebugread_h)
+	$(block_h) $(gdb_assert_h) $(gdb_string_h) $(alpha_tdep_h) \
+	$(mdebugread_h)
 alpha-nat.o: alpha-nat.c $(defs_h) $(gdb_string_h) $(inferior_h) \
 	$(gdbcore_h) $(target_h) $(regcache_h) $(alpha_tdep_h) $(gregset_h)
 alphanbsd-tdep.o: alphanbsd-tdep.c $(defs_h) $(frame_h) $(gdbcore_h) \
diff -urNp gdb-orig/gdb/mdebugread.c gdb-head/gdb/mdebugread.c
--- gdb-orig/gdb/mdebugread.c	2007-10-05 18:19:27.337181614 +0200
+++ gdb-head/gdb/mdebugread.c	2007-10-05 18:21:59.768347572 +0200
@@ -1942,21 +1942,6 @@ parse_procedure (PDR *pr, struct symtab 
          To work around these problems, we replace e->pdr.adr with
          the start address of the function.  */
       e->pdr.adr = BLOCK_START (b);
-
-      /* Correct incorrect setjmp procedure descriptor from the library
-         to make backtrace through setjmp work.  */
-      if (e->pdr.pcreg == 0
-	  && strcmp (sh_name, "setjmp") == 0)
-	{
-	  complaint (&symfile_complaints, _("fixing bad setjmp PDR from libc"));
-#ifdef RA_REGNUM
-	  e->pdr.pcreg = RA_REGNUM;
-#else
-	  e->pdr.pcreg = 0;
-#endif
-	  e->pdr.regmask = 0x80000000;
-	  e->pdr.regoffset = -4;
-	}
     }
 
   /* It would be reasonable that functions that have been compiled
-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com