[PATCH 04/10 v2] dwarf_offdie.c: Add locking

[Aaron Merey]

        * libdw/dwarf_offdie.c (__libdw_offdie): Use dwarf_lock.

Signed-off-by: Aaron Merey <ame...@redhat.com>
---
v2 changes: Lock only for the duration of __libdw_findcu.

 libdw/dwarf_offdie.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libdw/dwarf_offdie.c b/libdw/dwarf_offdie.c
index 883720de..a9729947 100644
--- a/libdw/dwarf_offdie.c
+++ b/libdw/dwarf_offdie.c
@@ -58,7 +59,10 @@ __libdw_offdie (Dwarf *dbg, Dwarf_Off offset, Dwarf_Die 
*result,
   result->addr = (char *) data->d_buf + offset;
 
   /* Get the CU.  */
+  mutex_lock (dbg->dwarf_lock);
   result->cu = __libdw_findcu (dbg, offset, debug_types);
+  mutex_unlock (dbg->dwarf_lock);
+
   if (result->cu == NULL)
     {
       /* This should never happen.  The input file is malformed.  */
-- 
2.48.1