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[RFC/TileGX 4/6]use skip_prologue_using_sal for skipping prologue


use skip_prologue_using_sal, instead of old find_pc_line, for skip prologue

gdb/ChangeLog:

* tilegx-tdep.c (tilegx_skip_prologue): Use skip_prologue_using_sal.

please review.

---
Regards,
Jiong
Tilera Corporation.

---
 gdb/tilegx-tdep.c |   22 +++++++++++-----------
 1 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/gdb/tilegx-tdep.c b/gdb/tilegx-tdep.c
index 638be6c..7f36bed 100644
--- a/gdb/tilegx-tdep.c
+++ b/gdb/tilegx-tdep.c
@@ -731,28 +731,28 @@ tilegx_analyze_prologue (struct gdbarch* gdbarch,
 /* This is the implementation of gdbarch method skip_prologue.  */
 
 static CORE_ADDR
-tilegx_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
+tilegx_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
 {
-  struct symtab_and_line sal;
-  CORE_ADDR func_start, func_end;
+  CORE_ADDR func_start;
 
   /* This is the preferred method, find the end of the prologue by
      using the debugging information.  */
-  if (find_pc_partial_function (pc, NULL, &func_start, &func_end))
+  if (find_pc_partial_function (start_pc, NULL, &func_start, NULL))
     {
-	sal = find_pc_line (func_start, 0);
-
-	if (sal.end < func_end && pc <= sal.end)
-	  return sal.end;
+      CORE_ADDR post_prologue_pc
+        = skip_prologue_using_sal (gdbarch, func_start);
+      if (post_prologue_pc != 0)
+        return max (start_pc, post_prologue_pc);
     }
 
   /* for plt stub, just return the start pc */
-  if (in_plt_section (pc, NULL))
-    return pc;
+  if (in_plt_section (start_pc, NULL))
+    return start_pc;
 
   /* Otherwise, try to skip prologue the hard way.  */
   return tilegx_analyze_prologue (gdbarch,
-				  pc, pc + 8 * TILEGX_BUNDLE_SIZE_IN_BYTES,
+                                  start_pc,
+                                  start_pc + 8 * TILEGX_BUNDLE_SIZE_IN_BYTES,
 				  NULL, NULL);
 }
 
-- 
1.7.10.3



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