Introduce struct elf_dyn_info

This is a common part of struct UPT_info
and struct UCD_info (to be introduced later).
Make _UPTi_find_unwind_table function operate only on this part
of struct UPT_info.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/include/libunwind_i.h b/include/libunwind_i.h
index e7110fc9..2ece7f06 100644
--- a/include/libunwind_i.h
+++ b/include/libunwind_i.h
@@ -303,6 +303,32 @@ struct elf_image
     size_t size;		/* (file-) size of the image */
   };
 
+struct elf_dyn_info
+  {
+    struct elf_image ei;
+    unw_dyn_info_t di_cache;
+    unw_dyn_info_t di_debug;    /* additional table info for .debug_frame */
+#if UNW_TARGET_IA64
+    unw_dyn_info_t ktab;
+#endif
+#if UNW_TARGET_ARM
+    unw_dyn_info_t di_arm;      /* additional table info for .ARM.exidx */
+#endif
+  };
+
+static void inline invalidate_edi (struct elf_dyn_info *edi)
+{
+  if (edi->ei.image)
+    munmap (edi->ei.image, edi->ei.size);
+  memset (edi, 0, sizeof (*edi));
+  edi->di_cache.format = -1;
+  edi->di_debug.format = -1;
+#if UNW_TARGET_ARM
+  edi->di_arm.format = -1;
+#endif
+}
+
+
 /* Provide a place holder for architecture to override for fast access
    to memory when known not to need to validate and know the access
    will be local to the process. A suitable override will improve