[PATCH 3/4] sh: Install return_with_first_hidden_param_p

[Yao Qi <yao@codesourcery.com>]

SH specific bits.

Regression tested on sh-linux-gnu.  Two fails are fixed

-FAIL: gdb.cp/bs15503.exp: print (const char *) s.substr(0,4)
-FAIL: gdb.cp/bs15503.exp: print (const char *) (s=s.substr(0,4))
+PASS: gdb.cp/bs15503.exp: print (const char *) s.substr(0,4)
+PASS: gdb.cp/bs15503.exp: print (const char *) (s=s.substr(0,4))

gdb:

2012-04-16  Yao Qi  <yao@codesourcery.com>

	* sh-tdep.c (sh_return_with_first_hidden_param_p): New.
	(sh_gdbarch_init): Install sh_return_with_first_hidden_param_p.
---
 gdb/sh-tdep.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index 7f15191..029958d 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -2915,6 +2915,17 @@ sh_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name,
 
   return NULL;
 }
+
+/* This is the implementation of gdbarch method
+   return_with_first_hidden_param_p.  */
+
+static int
+sh_return_with_first_hidden_param_p (struct gdbarch *gdbarch,
+				     struct type *type)
+{
+  return 0;
+}
+
 \f
 
 static struct gdbarch *
@@ -3013,6 +3024,8 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
 
   set_gdbarch_push_dummy_call (gdbarch, sh_push_dummy_call_nofpu);
+  set_gdbarch_return_with_first_hidden_param_p (gdbarch,
+						sh_return_with_first_hidden_param_p);
 
   set_gdbarch_believe_pcc_promotion (gdbarch, 1);
 
-- 
1.7.0.4