bfd: Add bfd_find_nearest_line_with_alt

bfd_find_nearest_line_with_alt functions like bfd_find_nearest_line with
the addition of a parameter for specifying the filename of a supplementary
debug file such as one referenced by .gnu_debugaltlink or .debug_sup.

This patch focuses on implementing bfd_find_nearest_line_with_alt
support for ELF/DWARF2 .gnu_debugaltlink. For other targets this
function simply sets the invalid_operation bfd_error.

1 files changed, 3 insertions, 0 deletions

diff --git a/bfd/som.h b/bfd/som.h
index 6aca4a2..68b8cc3 100644
--- a/bfd/som.h
+++ b/bfd/som.h
@@ -230,6 +230,9 @@ struct som_section_data_struct
 #define R_HPPA_BEGIN_TRY		R_BEGIN_TRY
 #define R_HPPA_END_TRY			R_END_TRY
 
+#define som_find_nearest_line_with_alt \
+  _bfd_nosymbols_find_nearest_line_with_alt
+
 /* Exported functions, mostly for use by GAS.  */
 bool bfd_som_set_section_attributes
   (asection *, int, int, unsigned int, int);