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PATCH: use frame_unwind_register instead of frame_register


Committed as obvious --- frame_unwind_register takes care of passing
all the dummy arguments to frame_register, so dwarf_expr_read_reg
shouldn't have to bother.

gdb/ChangeLog:
2006-11-03  Jim Blandy  <jimb@codesourcery.com>

        * dwarf2loc.c (dwarf_expr_read_reg): Use frame_unwind_register
        instead of frame_register.  Doc fix.

Index: gdb/dwarf2loc.c
===================================================================
RCS file: /cvs/src/src/gdb/dwarf2loc.c,v
retrieving revision 1.34
diff -u -r1.34 dwarf2loc.c
--- gdb/dwarf2loc.c	10 Oct 2006 03:17:53 -0000	1.34
+++ gdb/dwarf2loc.c	3 Nov 2006 21:52:38 -0000
@@ -114,9 +114,8 @@
 
 /* Helper functions for dwarf2_evaluate_loc_desc.  */
 
-/* Using the frame specified in BATON, read register REGNUM.  The lval
-   type will be returned in LVALP, and for lval_memory the register
-   save address will be returned in ADDRP.  */
+/* Using the frame specified in BATON, return the value of register
+   REGNUM, treated as an unsigned integer.  */
 static CORE_ADDR
 dwarf_expr_read_reg (void *baton, int dwarf_regnum)
 {
@@ -130,8 +129,7 @@
   regsize = register_size (current_gdbarch, regnum);
   buf = alloca (regsize);
 
-  frame_register (debaton->frame, regnum, &optimized, &lval_type, &save_addr,
-		  &realnum, buf);
+  frame_unwind_register (debaton->frame, regnum, buf);
   /* NOTE: cagney/2003-05-22: This extract is assuming that a DWARF 2
      address is always unsigned.  That may or may not be true.  */
   result = extract_unsigned_integer (buf, regsize);


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