cmse_scan segfault

elf_sym_hashes for as-needed libs will be zeroed if the library is
found to be not needed.  More than that, the local symbols for such a
library should not be considered by cmse_scan.

	* elf32-arm.c (elf32_arm_size_stubs): Ignore as-needed libs that
	were not needed.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index c5f7ec7..7e9fb68 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2018-10-24  Alan Modra  <amodra@gmail.com>
+
+       * elf32-arm.c (elf32_arm_size_stubs): Ignore as-needed libs that
+       were not needed.
+
 2018-10-23  Alan Modra  <amodra@gmail.com>
 
        PR 23806

diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index 2c321bb..5adec5e 100644 (file)
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -6449,7 +6449,8 @@ elf32_arm_size_stubs (bfd *output_bfd,
          asection *section;
          Elf_Internal_Sym *local_syms = NULL;
 
-         if (!is_arm_elf (input_bfd))
+         if (!is_arm_elf (input_bfd)
+             || (elf_dyn_lib_class (input_bfd) & DYN_AS_NEEDED) != 0)
            continue;
 
          num_a8_relocs = 0;