[PATCH 4/6] Use disassble.c:disassembler select rl78 disassembler

[Yao Qi <qiyaoltc@gmail.com>]

This patch changes rl78 to let disassble.c:disassembler select
disassembler.  rl78_get_disassembler doesn't handle the case
that abfd is NULL, so this patch also fix it.

gdb:

2017-05-15  Yao Qi  <yao.qi@linaro.org>

	* rl78-tdep.c (rl78_gdbarch_init): Don't call
	set_gdbarch_print_insn.

opcodes:

2017-05-15  Yao Qi  <yao.qi@linaro.org>

	* rl78-dis.c (rl78_get_disassembler): If parameter abfd
	is NULL, set cpu to E_FLAG_RL78_ANY_CPU.
---
 gdb/rl78-tdep.c    | 3 ---
 opcodes/rl78-dis.c | 6 +++++-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/gdb/rl78-tdep.c b/gdb/rl78-tdep.c
index 307a760..5775f96 100644
--- a/gdb/rl78-tdep.c
+++ b/gdb/rl78-tdep.c
@@ -1470,9 +1470,6 @@ rl78_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_sw_breakpoint_from_kind (gdbarch, rl78_breakpoint::bp_from_kind);
   set_gdbarch_decr_pc_after_break (gdbarch, 1);
 
-  /* Disassembly.  */
-  set_gdbarch_print_insn (gdbarch, print_insn_rl78);
-
   /* Frames, prologues, etc.  */
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
   set_gdbarch_skip_prologue (gdbarch, rl78_skip_prologue);
diff --git a/opcodes/rl78-dis.c b/opcodes/rl78-dis.c
index 1839436..799cd38 100644
--- a/opcodes/rl78-dis.c
+++ b/opcodes/rl78-dis.c
@@ -406,7 +406,11 @@ print_insn_rl78_g14 (bfd_vma addr, disassemble_info * dis)
 disassembler_ftype
 rl78_get_disassembler (bfd *abfd)
 {
-  int cpu = abfd->tdata.elf_obj_data->elf_header->e_flags & E_FLAG_RL78_CPU_MASK;
+  int cpu = E_FLAG_RL78_ANY_CPU;
+
+  if (abfd != NULL)
+    cpu = abfd->tdata.elf_obj_data->elf_header->e_flags & E_FLAG_RL78_CPU_MASK;
+
   switch (cpu)
     {
     case E_FLAG_RL78_G10:
-- 
1.9.1