[PATCH v2 3/6] Cast to bfd_vma in arm-tdep.c

[Tom Tromey]

Some arm-tdep.c data structures use a bfd_vma.  A couple of spots will
warn about an implicit narrowing cast when building a gdb where
CORE_ADDR is 64-bit but bfd_vma is 32-bit.

This patch silences these warnings by introducing an explicit cast.
This seemed both simplest and correct.

2020-02-25  Tom Tromey  <tom@tromey.com>

	* arm-tdep.c (map_key, arm_find_exidx_entry): Cast to bfd_vma.
---
 gdb/ChangeLog  | 4 ++++
 gdb/arm-tdep.c | 5 +++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 175c5b956e7..d395c7f7b75 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -366,7 +366,7 @@ arm_find_mapping_symbol (CORE_ADDR memaddr, CORE_ADDR *start)
 	    }
 
 	  struct arm_mapping_symbol map_key
-	    = { memaddr - obj_section_addr (sec), 0 };
+	    = { (bfd_vma) (memaddr - obj_section_addr (sec)), 0 };
 	  arm_mapping_symbol_vec::const_iterator it
 	    = std::lower_bound (map.begin (), map.end (), map_key);
 
@@ -2246,7 +2246,8 @@ arm_find_exidx_entry (CORE_ADDR memaddr, CORE_ADDR *start)
   if (sec != NULL)
     {
       struct arm_exidx_data *data;
-      struct arm_exidx_entry map_key = { memaddr - obj_section_addr (sec), 0 };
+      struct arm_exidx_entry map_key
+	= { (bfd_vma) (memaddr - obj_section_addr (sec)), 0 };
 
       data = arm_exidx_data_key.get (sec->objfile->obfd);
       if (data != NULL)
-- 
2.17.2