Bug 20292 - Simplify and test _dl_addr_inside_object

The function _dl_addr_inside_object is simplified by removing
the conditional 'reladdr - l->l_phdr[n].p_vaddr >= 0' which is
always true. The function is refactored into it's own object file
and a unit test added to verify the correct behaviour of the
function.

1 files changed, 0 insertions, 16 deletions

diff --git a/elf/dl-addr.c b/elf/dl-addr.c
index 1b16a58..045e746 100644
--- a/elf/dl-addr.c
+++ b/elf/dl-addr.c
@@ -144,19 +144,3 @@ _dl_addr (const void *address, Dl_info *info,
   return result;
 }
 libc_hidden_def (_dl_addr)
-
-/* Return non-zero if ADDR lies within one of L's segments.  */
-int
-internal_function
-_dl_addr_inside_object (struct link_map *l, const ElfW(Addr) addr)
-{
-  int n = l->l_phnum;
-  const ElfW(Addr) reladdr = addr - l->l_addr;
-
-  while (--n >= 0)
-    if (l->l_phdr[n].p_type == PT_LOAD
-	&& reladdr - l->l_phdr[n].p_vaddr >= 0
-	&& reladdr - l->l_phdr[n].p_vaddr < l->l_phdr[n].p_memsz)
-      return 1;
-  return 0;
-}