[PATCH v2 13/14] add s390_gcc_target_options

[Tom Tromey <tromey@redhat.com>]

From: Jan Kratochvil <jan.kratochvil@redhat.com>

This adds s390_gcc_target_options, an implementation of the new
"gcc_target_options" gdbarch method.  This was needed because the
default implementation of the method doesn't work properly for S390,
as this architecture needs "-m31" rather than "-m32".

2014-06-20  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* s390-linux-tdep.c (s390_gcc_target_options): New function.
	(s390_gdbarch_init): Add it to gdbarch.
---
 gdb/ChangeLog         | 5 +++++
 gdb/s390-linux-tdep.c | 9 +++++++++
 2 files changed, 14 insertions(+)

diff --git a/gdb/s390-linux-tdep.c b/gdb/s390-linux-tdep.c
index ea743b5..52da9c9 100644
--- a/gdb/s390-linux-tdep.c
+++ b/gdb/s390-linux-tdep.c
@@ -3043,6 +3043,14 @@ s390_address_class_name_to_type_flags (struct gdbarch *gdbarch,
     return 0;
 }
 
+/* Implement gdbarch_gcc_target_options.  GCC does not know "-m32".  */
+
+static char *
+s390_gcc_target_options (struct gdbarch *gdbarch)
+{
+  return xstrdup ("-m31");
+}
+
 /* Implementation of `gdbarch_stap_is_single_operand', as defined in
    gdbarch.h.  */
 
@@ -3339,6 +3347,7 @@ s390_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       tdep->sizeof_fpregset = s390_sizeof_fpregset;
 
       set_gdbarch_addr_bits_remove (gdbarch, s390_addr_bits_remove);
+      set_gdbarch_gcc_target_options (gdbarch, s390_gcc_target_options);
       set_solib_svr4_fetch_link_map_offsets
 	(gdbarch, svr4_ilp32_fetch_link_map_offsets);
 
-- 
1.9.3