gdb/

     * tilegx-tdep.c (tilegx_analyze_prologue): Limit bundle reading
     to END_ADDR.
     (tilegx_skip_prologue): Limit prologue analysis to section end

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 48df60da5665133665ede62c0924ee972f288a84..a2ca6874a65779cc7bd10b68ab57f722d7acc539 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2013-03-01  Jiong Wang  <jiwang@tilera.com>
+           Pedro Alves  <palves@redhat.com>
+
+       * tilegx-tdep.c (tilegx_analyze_prologue): Limit bundle reading
+       to END_ADDR.
+       (tilegx_skip_prologue): Limit prologue analysis to section end.
+
 2013-03-01  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
        * dwarf2loc.c (call_site_find_chain_1): New variable save_callee_pc,

diff --git a/gdb/tilegx-tdep.c b/gdb/tilegx-tdep.c
index f45c20f14bd55af41a2f5e2f8aabe13d4b0dc134..a47605372e497d8f6a12d4c72b3b67002bc96f32 100644 (file)
--- a/gdb/tilegx-tdep.c
+++ b/gdb/tilegx-tdep.c
@@ -433,6 +433,8 @@ tilegx_analyze_prologue (struct gdbarch* gdbarch,
 
          if (instbuf_size > size_on_same_page)
            instbuf_size = size_on_same_page;
+
+         instbuf_size = min (instbuf_size, (end_addr - next_addr));
          instbuf_start = next_addr;
 
          status = safe_frame_unwind_memory (next_frame, instbuf_start,
@@ -745,7 +747,8 @@ tilegx_analyze_prologue (struct gdbarch* gdbarch,
 static CORE_ADDR
 tilegx_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
 {
-  CORE_ADDR func_start;
+  CORE_ADDR func_start, end_pc;
+  struct obj_section *s;
 
   /* This is the preferred method, find the end of the prologue by
      using the debugging information.  */
@@ -758,10 +761,16 @@ tilegx_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
         return max (start_pc, post_prologue_pc);
     }
 
+  /* Don't straddle a section boundary.  */
+  s = find_pc_section (start_pc);
+  end_pc = start_pc + 8 * TILEGX_BUNDLE_SIZE_IN_BYTES;
+  if (s != NULL)
+    end_pc = min (end_pc, obj_section_endaddr (s));
+
   /* Otherwise, try to skip prologue the hard way.  */
   return tilegx_analyze_prologue (gdbarch,
                                  start_pc,
-                                 start_pc + 8 * TILEGX_BUNDLE_SIZE_IN_BYTES,
+                                 end_pc,
                                  NULL, NULL);
 }