Improve support for SunPro F77.

* dbxread.c (end_psymtab, process_one_symbol):  Handle minimal
	symbols with trailing underscore names.
	* minsyms.c (find_stab_function_addr):  Ditto.
	* dbxread.c (process_one_symbol):  Ignore N_ALIAS for now.
	* partial-stab.h (case N_ALIAS):  Ditto.
	* stabsread.c (read_sun_builtin_type):  Handle boolean types.

gdb/ChangeLog

@@ -1,3 +1,13 @@
+Sun Jun 28 11:35:48 1998  Peter Schauer  <pes@regent.e-technik.tu-muenchen.de>
+
+	Improve support for SunPro F77.
+	* dbxread.c (end_psymtab, process_one_symbol):  Handle minimal
+	symbols with trailing underscore names.
+	* minsyms.c (find_stab_function_addr):  Ditto.
+	* dbxread.c (process_one_symbol):  Ignore N_ALIAS for now.
+	* partial-stab.h (case N_ALIAS):  Ditto.
+	* stabsread.c (read_sun_builtin_type):  Handle boolean types.
+
 Fri Jun 26 14:03:01 1998  Keith Seitz  <keiths@cygnus.com>
 
 	* symtab.h (enum namespace): Add new namespaces FUNCTIONS_NAMESPACE,

gdb/dbxread.c

@@ -1,5 +1,5 @@
 /* Read dbx symbol tables and convert to internal format, for GDB.
-   Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
+   Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
    Free Software Foundation, Inc.
 
 This file is part of GDB.
@@ -1448,11 +1448,20 @@ end_psymtab (pst, include_list, num_includes, capping_symbol_offset,
       if (p == NULL)
 	p = last_function_name;
       n = p - last_function_name;
-      p = alloca (n + 1);
+      p = alloca (n + 2);
       strncpy (p, last_function_name, n);
       p[n] = 0;
     
       minsym = lookup_minimal_symbol (p, pst->filename, objfile);
+      if (minsym == NULL)
+	{
+	  /* Sun Fortran appends an underscore to the minimal symbol name,
+	     try again with an appended underscore if the minimal symbol
+	     was not found.  */
+	  p[n] = '_';
+	  p[n + 1] = 0;
+	  minsym = lookup_minimal_symbol (p, pst->filename, objfile);
+	}
 
       if (minsym)
 	pst->texthigh = SYMBOL_VALUE_ADDRESS (minsym) + MSYMBOL_SIZE (minsym);
@@ -1922,6 +1931,10 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
 	  finish_block (new->name, &local_symbols, new->old_blocks,
 			new->start_addr, new->start_addr + valu,
 			objfile);
+
+	  if (block_address_function_relative)
+	    function_start_offset = 0;
+
 	  break;
 	}
 
@@ -2114,8 +2127,10 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
       /* This type of "symbol" really just records
 	 one line-number -- core-address correspondence.
 	 Enter it in the line list for this symbol table.  */
+
       /* Relocate for dynamic loading and for ELF acc fn-relative syms.  */
       valu += function_start_offset;
+
 #ifdef SUN_FIXED_LBRAC_BUG
       last_pc_address = valu;	/* Save for SunOS bug circumcision */
 #endif
@@ -2260,12 +2275,22 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
 		  if (p == NULL)
 		    p = name;
 		  n = p - name;
-		  p = alloca (n + 1);
+		  p = alloca (n + 2);
 		  strncpy (p, name, n);
 		  p[n] = 0;
 
 		  msym = lookup_minimal_symbol (p, last_source_file,
 						objfile);
+		  if (msym == NULL)
+		    {
+		      /* Sun Fortran appends an underscore to the minimal
+			 symbol name, try again with an appended underscore
+			 if the minimal symbol was not found.  */
+		      p[n] = '_';
+		      p[n + 1] = 0;
+		      msym = lookup_minimal_symbol (p, last_source_file,
+						    objfile);
+		    }
 		  if (msym)
 		    valu = SYMBOL_VALUE_ADDRESS (msym);
 		}
@@ -2381,6 +2406,7 @@ process_one_symbol (type, desc, valu, name, section_offsets, objfile)
 		    file's symbols at once.  */
     case N_ENDM:		/* Solaris 2:  End of module */
     case N_MAIN:		/* Name of main routine.  */
+    case N_ALIAS:		/* SunPro F77: alias name, ignore for now.  */
       break;
     }
 

gdb/minsyms.c

@@ -1,5 +1,5 @@
 /* GDB routines for manipulating the minimal symbol tables.
-   Copyright 1992, 1993, 1994, 1996, 1996 Free Software Foundation, Inc.
+   Copyright 1992, 93, 94, 96, 97, 1998 Free Software Foundation, Inc.
    Contributed by Cygnus Support, using pieces from other GDB modules.
 
 This file is part of GDB.
@@ -452,11 +452,20 @@ find_stab_function_addr (namestring, pst, objfile)
   if (p == NULL)
     p = namestring;
   n = p - namestring;
-  p = alloca (n + 1);
+  p = alloca (n + 2);
   strncpy (p, namestring, n);
   p[n] = 0;
 
   msym = lookup_minimal_symbol (p, pst->filename, objfile);
+  if (msym == NULL)
+    {
+      /* Sun Fortran appends an underscore to the minimal symbol name,
+	 try again with an appended underscore if the minimal symbol
+	 was not found.  */
+      p[n] = '_';
+      p[n + 1] = 0;
+      msym = lookup_minimal_symbol (p, pst->filename, objfile);
+    }
   return msym == NULL ? 0 : SYMBOL_VALUE_ADDRESS (msym);
 }
 #endif /* SOFUN_ADDRESS_MAYBE_MISSING */

gdb/partial-stab.h

@@ -1,5 +1,5 @@
 /* Shared code to pre-read a stab (dbx-style), when building a psymtab.
-   Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
+   Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
    Free Software Foundation, Inc.
 
 This file is part of GDB.
@@ -795,6 +795,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 	case N_LBRAC:
 	case N_NSYMS:		/* Ultrix 4.0: symbol count */
 	case N_DEFD:		/* GNU Modula-2 */
+	case N_ALIAS:		/* SunPro F77: alias name, ignore for now.  */
 
 	case N_OBJ:		/* useless types from Solaris */
 	case N_OPT:

gdb/stabsread.c

@@ -4282,8 +4282,9 @@ read_enum_type (pp, type, objfile)
 /* Sun's ACC uses a somewhat saner method for specifying the builtin
    typedefs in every file (for int, long, etc):
 
-	type = b <signed> <width>; <offset>; <nbits>
-	signed = u or s.  Possible c in addition to u or s (for char?).
+	type = b <signed> <width> <format type>; <offset>; <nbits>
+	signed = u or s.
+	optional format type = c or b for char or boolean.
 	offset = offset from high order bit to start bit of type.
 	width is # bytes in object of this type, nbits is # bits in type.
 
@@ -4300,6 +4301,7 @@ read_sun_builtin_type (pp, typenums, objfile)
   int type_bits;
   int nbits;
   int signed_type;
+  enum type_code code = TYPE_CODE_INT;
 
   switch (**pp)
     {
@@ -4317,10 +4319,16 @@ read_sun_builtin_type (pp, typenums, objfile)
   /* For some odd reason, all forms of char put a c here.  This is strange
      because no other type has this honor.  We can safely ignore this because
      we actually determine 'char'acterness by the number of bits specified in
-     the descriptor.  */
+     the descriptor.
+     Boolean forms, e.g Fortran logical*X, put a b here.  */
 
   if (**pp == 'c')
     (*pp)++;
+  else if (**pp == 'b')
+    {
+      code = TYPE_CODE_BOOL;
+      (*pp)++;
+    }
 
   /* The first number appears to be the number of bytes occupied
      by this type, except that unsigned short is 4 instead of 2.
@@ -4353,7 +4361,7 @@ read_sun_builtin_type (pp, typenums, objfile)
 		      signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *)NULL,
 		      objfile);
   else
-    return init_type (TYPE_CODE_INT,
+    return init_type (code,
 		      type_bits / TARGET_CHAR_BIT,
 		      signed_type ? 0 : TYPE_FLAG_UNSIGNED, (char *)NULL,
 		      objfile);