doc/ChangeLog:

--------------

	* gdb.texinfo (Set SH Calling convention): New @item.
	(Show SH Calling convention): Ditto.

ChangeLog:
----------

	* NEWS: Add information on calling convention and new SH CLI options.

	* sh-tdep.c (sh_cc_gcc): New static string.
	(sh_cc_renesas): Ditto.
	(sh_cc_enum): New static string array.
	(sh_active_calling_convention): New static string pointer denoting
	active user chosen ABI.
	(sh_is_renesas_calling_convention): New function to return function
	specific ABI, or user choice if necessary.
	(sh_use_struct_convention): Rename first argument and turn around its
	meaning.  Check for renesas ABI and return accordingly.
	(sh_use_struct_convention_nofpu): New function.
	(sh_next_flt_argreg): Get function type as third parameter.  Check
	for renesas ABI and choose floating registers accordingly.
	(sh_push_dummy_call_fpu): Check for ABI and choose argument slot and
	struct return slot accordingly.
	(sh_push_dummy_call_nofpu): Ditto.
	(sh_return_value_nofpu): Call sh_use_struct_convention_nofpu from here.
	Evaluate ABI and give to sh_use_struct_convention_nofpu.
	(sh_return_value_fpu):  Evaluate ABI and give to
	sh_use_struct_convention.
	(show_sh_command): New function.
	(set_sh_command): Ditto.
	(_initialize_sh_tdep): Initialize `set/show sh calling-convention
	CLI command.

	* gdbarch.sh (return_value): Add func_type argument.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Ditto.
	* eval.c (evaluate_subexp_standard): Rename local variable value_type to
	val_type so as not to collide with value_type function.  Call
	using_struct_return with additional function type argument.
	* infcall.c (call_function_by_hand): Call using_struct_return and
	gdbarch_return_value with additional function type argument.
	* infcmd.c (print_return_value): Take addition func_type argument.
	Call gdbarch_return_value with additional function type argument.
	(finish_command_continuation): Call print_return_value with additional
	function type argument.
	(finish_command): Ditto.
	* sparc-tdep.c (sparc32_push_dummy_code): Call using_struct_return with
	additional function type argument.
	* stack.c (return_command): Call using_struct_return and
	gdbarch_return_value with additional function type argument.
	* value.c (using_struct_return): Take additional function type argument.
	* value.h (using_struct_return): Accommodate declaration.
	* alpha-tdep.c (alpha_return_value): Add func_type argument.
	* amd64-tdep.c (amd64_return_value): Ditto.
	* arm-tdep.c (arm_return_value): Ditto.
	* avr-tdep.c (avr_return_value): Ditto.
	* cris-tdep.c (cris_return_value): Ditto.
	* frv-tdep.c (frv_return_value): Ditto.
	* h8300-tdep.c (h8300_return_value): Ditto.
	(h8300h_return_value): Ditto.
	* hppa-tdep.c (hppa32_return_value): Ditto.
	(hppa64_return_value): Ditto.
	* i386-tdep.c (i386_return_value): Ditto.
	* ia64-tdep.c (ia64_return_value): Ditto.
	* iq2000-tdep.c (iq2000_return_value): Ditto.
	* m32c-tdep.c (m32c_return_value): Ditto.
	* m32r-tdep.c (m32r_return_value): Ditto.
	* m68hc11-tdep.c (m68hc11_return_value): Ditto.
	* m68k-tdep.c (m68k_return_value): Ditto.
	(m68k_svr4_return_value): Ditto.
	* m88k-tdep.c  (m88k_return_value): Ditto.
	* mep-tdep.c (mep_return_value): Ditto.
	* mips-tdep.c (mips_eabi_return_value): Ditto.
	(mips_n32n64_return_value): Ditto.
	(mips_o32_return_value): Ditto.
	(mips_o64_return_value): Ditto.
	* mn10300-tdep.c (mn10300_return_value): Ditto.
	* mt-tdep.c (mt_return_value): Ditto.
	* ppc-linux-tdep.c (ppc_linux_return_value): Ditto.
	* ppc-sysv-tdep.c (ppc_sysv_abi_return_value): Ditto.
	(ppc_sysv_abi_broken_return_value): Ditto.
	(ppc64_sysv_abi_return_value): Ditto.
	* ppc-tdep.h (ppc_sysv_abi_return_value): Ditto.
	(ppc_sysv_abi_broken_return_value): Ditto.
	(ppc64_sysv_abi_return_value): Ditto.
	* ppcnbsd-tdep.c (ppcnbsd_return_value): Ditto.
	* rs6000-tdep.c (rs6000_return_value): Ditto.
	* s390-tdep.c (s390_return_value): Ditto.
	* score-tdep.c (score_return_value): Ditto.
	* sh-tdep.c (sh_return_value_nofpu): Ditto.
	(sh_return_value_fpu): Ditto.
	* sh64-tdep.c (sh64_return_value): Ditto.
	* sparc-tdep.c (sparc32_return_value): Ditto.
	* sparc64-tdep.c (sparc64_return_value): Ditto.
	* spu-tdep.c (spu_return_value): Ditto.
	* v850-tdep.c (v850_return_value): Ditto.
	* vax-tdep.c (vax_return_value): Ditto.
	* xstormy16-tdep.c (xstormy16_return_value): Ditto.
	* xtensa-tdep.c (xtensa_return_value): Ditto.

	* gdbtypes.h (struct type): Add calling_convention member.
	* dwarf2read.c (read_subroutine_type): Add calling convention read
	from DW_AT_calling_convention attribute to function type.

51 files changed, 441 insertions, 156 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index db29ac8..a5aa714 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,102 @@
+2008-04-22  Corinna Vinschen  <vinschen@redhat.com>
+
+	* NEWS: Add information on calling convention and new SH CLI options.
+
+	* sh-tdep.c (sh_cc_gcc): New static string.
+	(sh_cc_renesas): Ditto.
+	(sh_cc_enum): New static string array.
+	(sh_active_calling_convention): New static string pointer denoting
+	active user chosen ABI.
+	(sh_is_renesas_calling_convention): New function to return function
+	specific ABI, or user choice if necessary.
+	(sh_use_struct_convention): Rename first argument and turn around its
+	meaning.  Check for renesas ABI and return accordingly.
+	(sh_use_struct_convention_nofpu): New function.
+	(sh_next_flt_argreg): Get function type as third parameter.  Check
+	for renesas ABI and choose floating registers accordingly.
+	(sh_push_dummy_call_fpu): Check for ABI and choose argument slot and
+	struct return slot accordingly.
+	(sh_push_dummy_call_nofpu): Ditto.
+	(sh_return_value_nofpu): Call sh_use_struct_convention_nofpu from here.
+	Evaluate ABI and give to sh_use_struct_convention_nofpu.
+	(sh_return_value_fpu):  Evaluate ABI and give to
+	sh_use_struct_convention.
+	(show_sh_command): New function.
+	(set_sh_command): Ditto.
+	(_initialize_sh_tdep): Initialize `set/show sh calling-convention
+	CLI command.
+
+	* gdbarch.sh (return_value): Add func_type argument.
+	* gdbarch.c: Regenerate.
+	* gdbarch.h: Ditto.
+	* eval.c (evaluate_subexp_standard): Rename local variable value_type to
+	val_type so as not to collide with value_type function.  Call
+	using_struct_return with additional function type argument.
+	* infcall.c (call_function_by_hand): Call using_struct_return and
+	gdbarch_return_value with additional function type argument.
+	* infcmd.c (print_return_value): Take addition func_type argument.
+	Call gdbarch_return_value with additional function type argument.
+	(finish_command_continuation): Call print_return_value with additional
+	function type argument.
+	(finish_command): Ditto.
+	* sparc-tdep.c (sparc32_push_dummy_code): Call using_struct_return with
+	additional function type argument.
+	* stack.c (return_command): Call using_struct_return and
+	gdbarch_return_value with additional function type argument.
+	* value.c (using_struct_return): Take additional function type argument.
+	* value.h (using_struct_return): Accommodate declaration.
+	* alpha-tdep.c (alpha_return_value): Add func_type argument.
+	* amd64-tdep.c (amd64_return_value): Ditto.
+	* arm-tdep.c (arm_return_value): Ditto.
+	* avr-tdep.c (avr_return_value): Ditto.
+	* cris-tdep.c (cris_return_value): Ditto.
+	* frv-tdep.c (frv_return_value): Ditto.
+	* h8300-tdep.c (h8300_return_value): Ditto.
+	(h8300h_return_value): Ditto.
+	* hppa-tdep.c (hppa32_return_value): Ditto.
+	(hppa64_return_value): Ditto.
+	* i386-tdep.c (i386_return_value): Ditto.
+	* ia64-tdep.c (ia64_return_value): Ditto.
+	* iq2000-tdep.c (iq2000_return_value): Ditto.
+	* m32c-tdep.c (m32c_return_value): Ditto.
+	* m32r-tdep.c (m32r_return_value): Ditto.
+	* m68hc11-tdep.c (m68hc11_return_value): Ditto.
+	* m68k-tdep.c (m68k_return_value): Ditto.
+	(m68k_svr4_return_value): Ditto.
+	* m88k-tdep.c  (m88k_return_value): Ditto.
+	* mep-tdep.c (mep_return_value): Ditto.
+	* mips-tdep.c (mips_eabi_return_value): Ditto.
+	(mips_n32n64_return_value): Ditto.
+	(mips_o32_return_value): Ditto.
+	(mips_o64_return_value): Ditto.
+	* mn10300-tdep.c (mn10300_return_value): Ditto.
+	* mt-tdep.c (mt_return_value): Ditto.
+	* ppc-linux-tdep.c (ppc_linux_return_value): Ditto.
+	* ppc-sysv-tdep.c (ppc_sysv_abi_return_value): Ditto.
+	(ppc_sysv_abi_broken_return_value): Ditto.
+	(ppc64_sysv_abi_return_value): Ditto.
+	* ppc-tdep.h (ppc_sysv_abi_return_value): Ditto.
+	(ppc_sysv_abi_broken_return_value): Ditto.
+	(ppc64_sysv_abi_return_value): Ditto.
+	* ppcnbsd-tdep.c (ppcnbsd_return_value): Ditto.
+	* rs6000-tdep.c (rs6000_return_value): Ditto.
+	* s390-tdep.c (s390_return_value): Ditto.
+	* score-tdep.c (score_return_value): Ditto.
+	* sh-tdep.c (sh_return_value_nofpu): Ditto.
+	(sh_return_value_fpu): Ditto.
+	* sh64-tdep.c (sh64_return_value): Ditto.
+	* sparc-tdep.c (sparc32_return_value): Ditto.
+	* sparc64-tdep.c (sparc64_return_value): Ditto.
+	* spu-tdep.c (spu_return_value): Ditto.
+	* v850-tdep.c (v850_return_value): Ditto.
+	* vax-tdep.c (vax_return_value): Ditto.
+	* xstormy16-tdep.c (xstormy16_return_value): Ditto.
+	* xtensa-tdep.c (xtensa_return_value): Ditto.
+
+	* gdbtypes.h (struct type): Add calling_convention member.
+	* dwarf2read.c (read_subroutine_type): Add calling convention read
+	from DW_AT_calling_convention attribute to function type.
+
 2008-04-22  Markus Deuling  <deuling@de.ibm.com>
 
 	* eval.c (evaluate_subexp_standard): Use value_subscripted_rvalue for
diff --git a/gdb/NEWS b/gdb/NEWS
index 7dc4121..4061da7 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -3,6 +3,13 @@
 
 *** Changes since GDB 6.8
 
+* GDB now supports multiple function calling conventions according to the
+  DWARF-2 DW_AT_calling_convention function attribute.
+  
+* The SH target utilizes the aforementioned change to distinguish between gcc
+  and Renesas calling convention.  It also adds the new CLI commands
+  `set/show sh calling-convention'.
+
 * GDB can now read compressed debug sections, as produced by GNU gold
 with the --compress-debug-sections=zlib flag.
 
diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c
index 6a55700..107b46f 100644
--- a/gdb/alpha-tdep.c
+++ b/gdb/alpha-tdep.c
@@ -564,9 +564,9 @@ alpha_store_return_value (struct type *valtype, struct regcache *regcache,
 }
 
 static enum return_value_convention
-alpha_return_value (struct gdbarch *gdbarch, struct type *type,
-		    struct regcache *regcache, gdb_byte *readbuf,
-		    const gdb_byte *writebuf)
+alpha_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		    struct type *type, struct regcache *regcache,
+		    gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   enum type_code code = TYPE_CODE (type);
 
diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index 891a425..a9a29b3 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -392,8 +392,8 @@ amd64_classify (struct type *type, enum amd64_reg_class class[2])
 }
 
 static enum return_value_convention
-amd64_return_value (struct gdbarch *gdbarch, struct type *type,
-		    struct regcache *regcache,
+amd64_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		    struct type *type, struct regcache *regcache,
 		    gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   enum amd64_reg_class class[2];
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 1cac2fb..48901c0 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -2373,9 +2373,9 @@ arm_store_return_value (struct type *type, struct regcache *regs,
 /* Handle function return values.  */
 
 static enum return_value_convention
-arm_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		  struct regcache *regcache, gdb_byte *readbuf,
-		  const gdb_byte *writebuf)
+arm_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		  struct type *valtype, struct regcache *regcache,
+		  gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
diff --git a/gdb/avr-tdep.c b/gdb/avr-tdep.c
index 46c6258..f2a69f4 100644
--- a/gdb/avr-tdep.c
+++ b/gdb/avr-tdep.c
@@ -834,9 +834,9 @@ avr_extract_return_value (struct type *type, struct regcache *regcache,
    from WRITEBUF into REGCACHE.  */
 
 enum return_value_convention
-avr_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		  struct regcache *regcache, gdb_byte *readbuf,
-		  const gdb_byte *writebuf)
+avr_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		  struct type *valtype, struct regcache *regcache,
+		  gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   int struct_return = ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT
 			|| TYPE_CODE (valtype) == TYPE_CODE_UNION
diff --git a/gdb/cris-tdep.c b/gdb/cris-tdep.c
index b95a9d9..c26dfb5 100644
--- a/gdb/cris-tdep.c
+++ b/gdb/cris-tdep.c
@@ -1924,9 +1924,9 @@ cris_extract_return_value (struct type *type, struct regcache *regcache,
 /* Handle the CRIS return value convention.  */
 
 static enum return_value_convention
-cris_return_value (struct gdbarch *gdbarch, struct type *type,
-		   struct regcache *regcache, gdb_byte *readbuf,
-		   const gdb_byte *writebuf)
+cris_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *type, struct regcache *regcache,
+		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (TYPE_CODE (type) == TYPE_CODE_STRUCT 
       || TYPE_CODE (type) == TYPE_CODE_UNION
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 152bbf3..fa94e40 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,8 @@
+2008-04-22  Corinna Vinschen  <vinschen@redhat.com>
+
+	* gdb.texinfo (Set SH Calling convention): New @item.
+	(Show SH Calling convention): Ditto.
+
 2008-04-22  Markus Deuling  <deuling@de.ibm.com>
 
 	* gdb.texinfo (Fortran Operators): Describe '%' operator.
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 4f77c9d..6337790 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -15655,6 +15655,24 @@ commands:
 @item regs
 @kindex regs@r{, Super-H}
 Show the values of all Super-H registers.
+
+@item set sh calling-convention @var{convention}
+@kindex set sh calling-convention
+Set the calling-convention used when calling functions from @value{GDBN}.
+Allowed values are @samp{gcc}, which is the default setting, and @samp{renesas}.
+With the @samp{gcc} setting, functions are called using the @value{NGCC} calling
+convention.  If the DWARF-2 information of the called function specifies
+that the function follows the Renesas calling convention, the function
+is called using the Renesas calling convention.  If the calling convention
+is set to @samp{renesas}, the Renesas calling convention is always used,
+regardless of the DWARF-2 information.  This can be used to override the
+default of @samp{gcc} if debug information is missing, or the compiler
+does not emit the DWARF-2 calling convention entry for a function.
+
+@item show sh calling-convention
+@kindex show sh calling-convention
+Show the current calling convention setting.
+
 @end table
 
 
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 468ac87..dab4290 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -4941,6 +4941,12 @@ read_subroutine_type (struct die_info *die, struct dwarf2_cu *cu)
       || cu->language == language_pascal)
     TYPE_FLAGS (ftype) |= TYPE_FLAG_PROTOTYPED;
 
+  /* Store the calling convention in the type if it's available in
+     the subroutine die.  Otherwise set the calling convention to
+     the default value DW_CC_normal.  */
+  attr = dwarf2_attr (die, DW_AT_calling_convention, cu);
+  TYPE_CALLING_CONVENTION (ftype) = attr ? DW_UNSND (attr) : DW_CC_normal;
+  
   if (die->child != NULL)
     {
       struct die_info *child_die;
diff --git a/gdb/eval.c b/gdb/eval.c
index 8a0cd87..15bb57e 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -918,26 +918,27 @@ evaluate_subexp_standard (struct type *expect_type,
 	  {
 	    struct block *b;
 	    CORE_ADDR funaddr;
-	    struct type *value_type;
+	    struct type *val_type;
 
-	    funaddr = find_function_addr (method, &value_type);
+	    funaddr = find_function_addr (method, &val_type);
 
 	    b = block_for_pc (funaddr);
 
-	    CHECK_TYPEDEF (value_type);
+	    CHECK_TYPEDEF (val_type);
 	  
-	    if ((value_type == NULL) 
-		|| (TYPE_CODE(value_type) == TYPE_CODE_ERROR))
+	    if ((val_type == NULL) 
+		|| (TYPE_CODE(val_type) == TYPE_CODE_ERROR))
 	      {
 		if (expect_type != NULL)
-		  value_type = expect_type;
+		  val_type = expect_type;
 	      }
 
-	    struct_return = using_struct_return (value_type);
+	    struct_return = using_struct_return (value_type (method), val_type);
 	  }
 	else if (expect_type != NULL)
 	  {
-	    struct_return = using_struct_return (check_typedef (expect_type));
+	    struct_return = using_struct_return (NULL,
+						 check_typedef (expect_type));
 	  }
 	
 	/* Found a function symbol.  Now we will substitute its
diff --git a/gdb/frv-tdep.c b/gdb/frv-tdep.c
index 1611d22..a6bbf03 100644
--- a/gdb/frv-tdep.c
+++ b/gdb/frv-tdep.c
@@ -1248,9 +1248,9 @@ frv_store_return_value (struct type *type, struct regcache *regcache,
 }
 
 enum return_value_convention
-frv_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		  struct regcache *regcache, gdb_byte *readbuf,
-		  const gdb_byte *writebuf)
+frv_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		  struct type *valtype, struct regcache *regcache,
+		  gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   int struct_return = TYPE_CODE (valtype) == TYPE_CODE_STRUCT
 		      || TYPE_CODE (valtype) == TYPE_CODE_UNION
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index 613064c..f63dcdc 100644
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -2041,13 +2041,13 @@ gdbarch_return_value_p (struct gdbarch *gdbarch)
 }
 
 enum return_value_convention
-gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf)
+gdbarch_return_value (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->return_value != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_return_value called\n");
-  return gdbarch->return_value (gdbarch, valtype, regcache, readbuf, writebuf);
+  return gdbarch->return_value (gdbarch, functype, valtype, regcache, readbuf, writebuf);
 }
 
 void
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 06ac3ce..6b4658e 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -366,8 +366,8 @@ extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_int
 
 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 
-typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
-extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
+typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
+extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 
 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (struct gdbarch *gdbarch, CORE_ADDR ip);
diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index 5e91d6e..f9fee17 100755
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -474,7 +474,7 @@ M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
 # should take the type/value of the function to be called and not the
 # return type.  This is left as an exercise for the reader.
 
-M:enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf
+M:enum return_value_convention:return_value:struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:functype, valtype, regcache, readbuf, writebuf
 
 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h
index f829cc7..b33ba25 100644
--- a/gdb/gdbtypes.h
+++ b/gdb/gdbtypes.h
@@ -481,6 +481,11 @@ struct main_type
        targets and the second is for little endian targets.  */
 
     const struct floatformat **floatformat;
+
+    /* For TYPE_CODE_FUNC types, the calling convention for targets
+       supporting multiple ABIs.  Right now this is only fetched from
+       the Dwarf-2 DW_AT_calling_convention attribute.  */
+    unsigned calling_convention;
   } type_specific;
 };
 
@@ -812,6 +817,7 @@ extern void allocate_cplus_struct_type (struct type *);
 #define	TYPE_TYPE_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific
 #define TYPE_CPLUS_SPECIFIC(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.cplus_stuff
 #define TYPE_FLOATFORMAT(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.floatformat
+#define TYPE_CALLING_CONVENTION(thistype) TYPE_MAIN_TYPE(thistype)->type_specific.calling_convention
 #define TYPE_BASECLASS(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].type
 #define TYPE_N_BASECLASSES(thistype) TYPE_CPLUS_SPECIFIC(thistype)->n_baseclasses
 #define TYPE_BASECLASS_NAME(thistype,index) TYPE_MAIN_TYPE(thistype)->fields[index].name
diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index 0e3d0df..77e0e93 100644
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -909,8 +909,8 @@ h8300h_store_return_value (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-h8300_return_value (struct gdbarch *gdbarch, struct type *type,
-		    struct regcache *regcache,
+h8300_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		    struct type *type, struct regcache *regcache,
 		    gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (h8300_use_struct_convention (type))
@@ -923,8 +923,8 @@ h8300_return_value (struct gdbarch *gdbarch, struct type *type,
 }
 
 static enum return_value_convention
-h8300h_return_value (struct gdbarch *gdbarch, struct type *type,
-		     struct regcache *regcache,
+h8300h_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		     struct type *type, struct regcache *regcache,
 		     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (h8300h_use_struct_convention (type))
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index d91ed95..8d597e2 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -1105,7 +1105,7 @@ hppa64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 /* Handle 32/64-bit struct return conventions.  */
 
 static enum return_value_convention
-hppa32_return_value (struct gdbarch *gdbarch,
+hppa32_return_value (struct gdbarch *gdbarch, struct type *func_type,
 		     struct type *type, struct regcache *regcache,
 		     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
@@ -1145,7 +1145,7 @@ hppa32_return_value (struct gdbarch *gdbarch,
 }
 
 static enum return_value_convention
-hppa64_return_value (struct gdbarch *gdbarch,
+hppa64_return_value (struct gdbarch *gdbarch, struct type *func_type,
 		     struct type *type, struct regcache *regcache,
 		     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 9215a52..ee7ed51 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -1560,9 +1560,9 @@ i386_reg_struct_return_p (struct gdbarch *gdbarch, struct type *type)
    from WRITEBUF into REGCACHE.  */
 
 static enum return_value_convention
-i386_return_value (struct gdbarch *gdbarch, struct type *type,
-		   struct regcache *regcache, gdb_byte *readbuf,
-		   const gdb_byte *writebuf)
+i386_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *type, struct regcache *regcache,
+		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   enum type_code code = TYPE_CODE (type);
 
@@ -1611,7 +1611,8 @@ i386_return_value (struct gdbarch *gdbarch, struct type *type,
   if (code == TYPE_CODE_STRUCT && TYPE_NFIELDS (type) == 1)
     {
       type = check_typedef (TYPE_FIELD_TYPE (type, 0));
-      return i386_return_value (gdbarch, type, regcache, readbuf, writebuf);
+      return i386_return_value (gdbarch, func_type, type, regcache,
+				readbuf, writebuf);
     }
 
   if (readbuf)
diff --git a/gdb/ia64-tdep.c b/gdb/ia64-tdep.c
index 3876c23..37ed4fc 100644
--- a/gdb/ia64-tdep.c
+++ b/gdb/ia64-tdep.c
@@ -3059,9 +3059,9 @@ ia64_store_return_value (struct type *type, struct regcache *regcache,
 }
   
 static enum return_value_convention
-ia64_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		   struct regcache *regcache, gdb_byte *readbuf,
-		   const gdb_byte *writebuf)
+ia64_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *valtype, struct regcache *regcache,
+		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   int struct_return = ia64_use_struct_convention (valtype);
 
diff --git a/gdb/infcall.c b/gdb/infcall.c
index 721b32d..ca4785e 100644
--- a/gdb/infcall.c
+++ b/gdb/infcall.c
@@ -493,7 +493,7 @@ call_function_by_hand (struct value *function, int nargs, struct value **args)
     }
   else
     {
-      struct_return = using_struct_return (values_type);
+      struct_return = using_struct_return (value_type (function), values_type);
       target_values_type = values_type;
     }
 
@@ -852,15 +852,15 @@ the function call)."), name);
       }
     else
       {
-	switch (gdbarch_return_value (gdbarch, target_values_type,
-				      NULL, NULL, NULL))
+	switch (gdbarch_return_value (gdbarch, value_type (function),
+				      target_values_type, NULL, NULL, NULL))
 	  {
 	  case RETURN_VALUE_REGISTER_CONVENTION:
 	  case RETURN_VALUE_ABI_RETURNS_ADDRESS:
 	  case RETURN_VALUE_ABI_PRESERVES_ADDRESS:
 	    retval = allocate_value (values_type);
-	    gdbarch_return_value (gdbarch, values_type, retbuf,
-				  value_contents_raw (retval), NULL);
+	    gdbarch_return_value (gdbarch, value_type (function), values_type,
+				  retbuf, value_contents_raw (retval), NULL);
 	    break;
 	  case RETURN_VALUE_STRUCT_CONVENTION:
 	    retval = value_at (values_type, struct_addr);
diff --git a/gdb/infcmd.c b/gdb/infcmd.c
index 2c30b7e..22a4abb 100644
--- a/gdb/infcmd.c
+++ b/gdb/infcmd.c
@@ -69,7 +69,8 @@ void interrupt_target_command (char *args, int from_tty);
 
 static void nofp_registers_info (char *, int);
 
-static void print_return_value (struct type *value_type);
+static void print_return_value (struct type *func_type,
+				struct type *value_type);
 
 static void finish_command_continuation (struct continuation_arg *);
 
@@ -1183,7 +1184,7 @@ advance_command (char *arg, int from_tty)
 /* Print the result of a function at the end of a 'finish' command.  */
 
 static void
-print_return_value (struct type *value_type)
+print_return_value (struct type *func_type, struct type *value_type)
 {
   struct gdbarch *gdbarch = current_gdbarch;
   struct cleanup *old_chain;
@@ -1200,13 +1201,14 @@ print_return_value (struct type *value_type)
      inferior function call code.  In fact, when inferior function
      calls are made async, this will likely be made the norm.  */
 
-  switch (gdbarch_return_value (gdbarch, value_type, NULL, NULL, NULL))
+  switch (gdbarch_return_value (gdbarch, func_type, value_type,
+  				NULL, NULL, NULL))
     {
     case RETURN_VALUE_REGISTER_CONVENTION:
     case RETURN_VALUE_ABI_RETURNS_ADDRESS:
     case RETURN_VALUE_ABI_PRESERVES_ADDRESS:
       value = allocate_value (value_type);
-      gdbarch_return_value (gdbarch, value_type, stop_registers,
+      gdbarch_return_value (gdbarch, func_type, value_type, stop_registers,
 			    value_contents_raw (value), NULL);
       break;
     case RETURN_VALUE_STRUCT_CONVENTION:
@@ -1270,7 +1272,7 @@ finish_command_continuation (struct continuation_arg *arg)
 			_("finish_command: function has no target type"));
 
       if (TYPE_CODE (value_type) != TYPE_CODE_VOID)
-	print_return_value (value_type); 
+	print_return_value (SYMBOL_TYPE (function), value_type); 
     }
 
   do_exec_cleanups (cleanups);
@@ -1384,7 +1386,7 @@ finish_command (char *arg, int from_tty)
 			    _("finish_command: function has no target type"));
 
 	  if (TYPE_CODE (value_type) != TYPE_CODE_VOID)
-	    print_return_value (value_type); 
+	    print_return_value (SYMBOL_TYPE (function), value_type); 
 	}
 
       do_cleanups (old_chain);
diff --git a/gdb/iq2000-tdep.c b/gdb/iq2000-tdep.c
index e5b558e..d938fe7 100644
--- a/gdb/iq2000-tdep.c
+++ b/gdb/iq2000-tdep.c
@@ -591,8 +591,8 @@ iq2000_extract_return_value (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-iq2000_return_value (struct gdbarch *gdbarch, struct type *type,
-		     struct regcache *regcache,
+iq2000_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		     struct type *type, struct regcache *regcache,
 		     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (iq2000_use_struct_convention (type))
diff --git a/gdb/m32c-tdep.c b/gdb/m32c-tdep.c
index 7302a7f..fa7b465 100644
--- a/gdb/m32c-tdep.c
+++ b/gdb/m32c-tdep.c
@@ -2198,6 +2198,7 @@ m32c_return_by_passed_buf (struct type *type)
 
 static enum return_value_convention
 m32c_return_value (struct gdbarch *gdbarch,
+		   struct type *func_type,
 		   struct type *valtype,
 		   struct regcache *regcache,
 		   gdb_byte *readbuf,
diff --git a/gdb/m32r-tdep.c b/gdb/m32r-tdep.c
index 8085b86..964ae38 100644
--- a/gdb/m32r-tdep.c
+++ b/gdb/m32r-tdep.c
@@ -786,9 +786,9 @@ m32r_extract_return_value (struct type *type, struct regcache *regcache,
 }
 
 enum return_value_convention
-m32r_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		   struct regcache *regcache, gdb_byte *readbuf,
-		   const gdb_byte *writebuf)
+m32r_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *valtype, struct regcache *regcache,
+		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (TYPE_LENGTH (valtype) > 8)
     return RETURN_VALUE_STRUCT_CONVENTION;
diff --git a/gdb/m68hc11-tdep.c b/gdb/m68hc11-tdep.c
index 1504bf3..f765d44 100644
--- a/gdb/m68hc11-tdep.c
+++ b/gdb/m68hc11-tdep.c
@@ -1311,9 +1311,9 @@ m68hc11_extract_return_value (struct type *type, struct regcache *regcache,
 }
 
 enum return_value_convention
-m68hc11_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		      struct regcache *regcache, gdb_byte *readbuf,
-		      const gdb_byte *writebuf)
+m68hc11_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		      struct type *valtype, struct regcache *regcache,
+		      gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (TYPE_CODE (valtype) == TYPE_CODE_STRUCT
       || TYPE_CODE (valtype) == TYPE_CODE_UNION
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index bfb1af9..35ad4ca 100644
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -372,9 +372,9 @@ m68k_reg_struct_return_p (struct gdbarch *gdbarch, struct type *type)
    from WRITEBUF into REGCACHE.  */
 
 static enum return_value_convention
-m68k_return_value (struct gdbarch *gdbarch, struct type *type,
-		   struct regcache *regcache, gdb_byte *readbuf,
-		   const gdb_byte *writebuf)
+m68k_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *type, struct regcache *regcache,
+		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   enum type_code code = TYPE_CODE (type);
 
@@ -407,9 +407,9 @@ m68k_return_value (struct gdbarch *gdbarch, struct type *type,
 }
 
 static enum return_value_convention
-m68k_svr4_return_value (struct gdbarch *gdbarch, struct type *type,
-			struct regcache *regcache, gdb_byte *readbuf,
-			const gdb_byte *writebuf)
+m68k_svr4_return_value (struct gdbarch *gdbarch, struct type *func_type,
+			struct type *type, struct regcache *regcache,
+			gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   enum type_code code = TYPE_CODE (type);
 
@@ -446,7 +446,7 @@ m68k_svr4_return_value (struct gdbarch *gdbarch, struct type *type,
   if (code == TYPE_CODE_STRUCT && TYPE_NFIELDS (type) == 1)
     {
       type = check_typedef (TYPE_FIELD_TYPE (type, 0));
-      return m68k_svr4_return_value (gdbarch, type, regcache,
+      return m68k_svr4_return_value (gdbarch, func_type, type, regcache,
 				     readbuf, writebuf);
     }
 
diff --git a/gdb/m88k-tdep.c b/gdb/m88k-tdep.c
index 9b71779..1b9f312 100644
--- a/gdb/m88k-tdep.c
+++ b/gdb/m88k-tdep.c
@@ -381,9 +381,9 @@ m88k_unwind_dummy_id (struct gdbarch *arch, struct frame_info *next_frame)
    from WRITEBUF into REGCACHE.  */
 
 static enum return_value_convention
-m88k_return_value (struct gdbarch *gdbarch, struct type *type,
-		   struct regcache *regcache, gdb_byte *readbuf,
-		   const gdb_byte *writebuf)
+m88k_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *type, struct regcache *regcache,
+		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   int len = TYPE_LENGTH (type);
   gdb_byte buf[8];
diff --git a/gdb/mep-tdep.c b/gdb/mep-tdep.c
index 57f2415..6079236 100644
--- a/gdb/mep-tdep.c
+++ b/gdb/mep-tdep.c
@@ -2195,9 +2195,9 @@ mep_store_return_value (struct gdbarch *arch,
 }
 
 enum return_value_convention
-mep_return_value (struct gdbarch *gdbarch, struct type *type,
-		  struct regcache *regcache, gdb_byte *readbuf,
-		  const gdb_byte *writebuf)
+mep_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		  struct type *type, struct regcache *regcache,
+		  gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (mep_use_struct_convention (type))
     {
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 3722120..ebb216f 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -2955,7 +2955,7 @@ mips_eabi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 /* Determine the return value convention being used.  */
 
 static enum return_value_convention
-mips_eabi_return_value (struct gdbarch *gdbarch,
+mips_eabi_return_value (struct gdbarch *gdbarch, struct type *func_type,
 			struct type *type, struct regcache *regcache,
 			gdb_byte *readbuf, const gdb_byte *writebuf)
 {
@@ -3265,7 +3265,7 @@ mips_n32n64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 }
 
 static enum return_value_convention
-mips_n32n64_return_value (struct gdbarch *gdbarch,
+mips_n32n64_return_value (struct gdbarch *gdbarch, struct type *func_type,
 			  struct type *type, struct regcache *regcache,
 			  gdb_byte *readbuf, const gdb_byte *writebuf)
 {
@@ -3723,8 +3723,8 @@ mips_o32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 }
 
 static enum return_value_convention
-mips_o32_return_value (struct gdbarch *gdbarch, struct type *type,
-		       struct regcache *regcache,
+mips_o32_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		       struct type *type, struct regcache *regcache,
 		       gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -4112,7 +4112,7 @@ mips_o64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 }
 
 static enum return_value_convention
-mips_o64_return_value (struct gdbarch *gdbarch,
+mips_o64_return_value (struct gdbarch *gdbarch, struct type *func_type,
 		       struct type *type, struct regcache *regcache,
 		       gdb_byte *readbuf, const gdb_byte *writebuf)
 {
diff --git a/gdb/mn10300-tdep.c b/gdb/mn10300-tdep.c
index f043604..db35b5c 100644
--- a/gdb/mn10300-tdep.c
+++ b/gdb/mn10300-tdep.c
@@ -196,9 +196,9 @@ mn10300_extract_return_value (struct gdbarch *gdbarch, struct type *type,
    from WRITEBUF into REGCACHE.  */
 
 static enum return_value_convention
-mn10300_return_value (struct gdbarch *gdbarch, struct type *type,
-		      struct regcache *regcache, gdb_byte *readbuf,
-		      const gdb_byte *writebuf)
+mn10300_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		      struct type *type, struct regcache *regcache,
+		      gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (mn10300_use_struct_convention (type))
     return RETURN_VALUE_STRUCT_CONVENTION;
diff --git a/gdb/mt-tdep.c b/gdb/mt-tdep.c
index a3098b2..57ff460 100644
--- a/gdb/mt-tdep.c
+++ b/gdb/mt-tdep.c
@@ -332,9 +332,9 @@ mt_register_reggroup_p (struct gdbarch *gdbarch, int regnum,
    values.  */
 
 static enum return_value_convention
-mt_return_value (struct gdbarch *gdbarch, struct type *type,
-		  struct regcache *regcache, gdb_byte *readbuf,
-		  const gdb_byte *writebuf)
+mt_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		 struct type *type, struct regcache *regcache,
+		 gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (TYPE_LENGTH (type) > 4)
     {
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index d0901de..98a4156 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -308,9 +308,9 @@ ppc_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
    which were added later, do get returned in a register though.  */
 
 static enum return_value_convention
-ppc_linux_return_value (struct gdbarch *gdbarch, struct type *valtype,
-			struct regcache *regcache, gdb_byte *readbuf,
-			const gdb_byte *writebuf)
+ppc_linux_return_value (struct gdbarch *gdbarch, struct type *func_type,
+			struct type *valtype, struct regcache *regcache,
+			gdb_byte *readbuf, const gdb_byte *writebuf)
 {  
   if ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT
        || TYPE_CODE (valtype) == TYPE_CODE_UNION)
@@ -318,8 +318,8 @@ ppc_linux_return_value (struct gdbarch *gdbarch, struct type *valtype,
 	   && TYPE_VECTOR (valtype)))
     return RETURN_VALUE_STRUCT_CONVENTION;
   else
-    return ppc_sysv_abi_return_value (gdbarch, valtype, regcache, readbuf,
-				      writebuf);
+    return ppc_sysv_abi_return_value (gdbarch, func_type, valtype, regcache,
+				      readbuf, writebuf);
 }
 
 /* Macros for matching instructions.  Note that, since all the
diff --git a/gdb/ppc-sysv-tdep.c b/gdb/ppc-sysv-tdep.c
index eea2287..27627da 100644
--- a/gdb/ppc-sysv-tdep.c
+++ b/gdb/ppc-sysv-tdep.c
@@ -805,9 +805,9 @@ do_ppc_sysv_return_value (struct gdbarch *gdbarch, struct type *type,
 }
 
 enum return_value_convention
-ppc_sysv_abi_return_value (struct gdbarch *gdbarch, struct type *valtype,
-			   struct regcache *regcache, gdb_byte *readbuf,
-			   const gdb_byte *writebuf)
+ppc_sysv_abi_return_value (struct gdbarch *gdbarch, struct type *func_type,
+			   struct type *valtype, struct regcache *regcache,
+			   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   return do_ppc_sysv_return_value (gdbarch, valtype, regcache, readbuf,
 				   writebuf, 0);
@@ -815,6 +815,7 @@ ppc_sysv_abi_return_value (struct gdbarch *gdbarch, struct type *valtype,
 
 enum return_value_convention
 ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
+				  struct type *func_type,
 				  struct type *valtype,
 				  struct regcache *regcache,
 				  gdb_byte *readbuf, const gdb_byte *writebuf)
@@ -1322,9 +1323,9 @@ ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
    location; when READBUF is non-NULL, fill the buffer from the
    corresponding register return-value location.  */
 enum return_value_convention
-ppc64_sysv_abi_return_value (struct gdbarch *gdbarch, struct type *valtype,
-			     struct regcache *regcache, gdb_byte *readbuf,
-			     const gdb_byte *writebuf)
+ppc64_sysv_abi_return_value (struct gdbarch *gdbarch, struct type *func_type,
+			     struct type *valtype, struct regcache *regcache,
+			     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
diff --git a/gdb/ppc-tdep.h b/gdb/ppc-tdep.h
index 50805ae..63423c9 100644
--- a/gdb/ppc-tdep.h
+++ b/gdb/ppc-tdep.h
@@ -29,11 +29,13 @@ struct type;
 
 /* From ppc-linux-tdep.c... */
 enum return_value_convention ppc_sysv_abi_return_value (struct gdbarch *gdbarch,
+							struct type *func_type,
 							struct type *valtype,
 							struct regcache *regcache,
 							gdb_byte *readbuf,
 							const gdb_byte *writebuf);
 enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *gdbarch,
+							       struct type *func_type,
 							       struct type *valtype,
 							       struct regcache *regcache,
 							       gdb_byte *readbuf,
@@ -60,6 +62,7 @@ const struct regset *ppc_linux_gregset (int);
 const struct regset *ppc_linux_fpregset (void);
 
 enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
+							  struct type *func_type,
 							  struct type *valtype,
 							  struct regcache *regcache,
 							  gdb_byte *readbuf,
diff --git a/gdb/ppcnbsd-tdep.c b/gdb/ppcnbsd-tdep.c
index 2fed4ea..0d4ad6b 100644
--- a/gdb/ppcnbsd-tdep.c
+++ b/gdb/ppcnbsd-tdep.c
@@ -77,9 +77,9 @@ ppcnbsd_regset_from_core_section (struct gdbarch *gdbarch,
    the moment use the broken convention.  Ulgh!.  */
 
 static enum return_value_convention
-ppcnbsd_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		      struct regcache *regcache, gdb_byte *readbuf,
-		      const gdb_byte *writebuf)
+ppcnbsd_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		      struct type *valtype, struct regcache *regcache,
+		      gdb_byte *readbuf, const gdb_byte *writebuf)
 {
 #if 0
   if ((TYPE_CODE (valtype) == TYPE_CODE_STRUCT
@@ -93,8 +93,8 @@ ppcnbsd_return_value (struct gdbarch *gdbarch, struct type *valtype,
     return RETURN_VALUE_STRUCT_CONVENTION;
   else
 #endif
-    return ppc_sysv_abi_broken_return_value (gdbarch, valtype, regcache,
-					     readbuf, writebuf);
+    return ppc_sysv_abi_broken_return_value (gdbarch, func_type, valtype,
+					     regcache, readbuf, writebuf);
 }
 
 
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 50dbf2b..00a7d7e 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -2095,9 +2095,9 @@ ran_out_of_registers_for_arguments:
 }
 
 static enum return_value_convention
-rs6000_return_value (struct gdbarch *gdbarch, struct type *valtype,
-		     struct regcache *regcache, gdb_byte *readbuf,
-		     const gdb_byte *writebuf)
+rs6000_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		     struct type *valtype, struct regcache *regcache,
+		     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   gdb_byte buf[8];
diff --git a/gdb/s390-tdep.c b/gdb/s390-tdep.c
index bfcb247..c073d73 100644
--- a/gdb/s390-tdep.c
+++ b/gdb/s390-tdep.c
@@ -2175,9 +2175,9 @@ s390_return_value_convention (struct gdbarch *gdbarch, struct type *type)
 }
 
 static enum return_value_convention
-s390_return_value (struct gdbarch *gdbarch, struct type *type, 
-		   struct regcache *regcache, gdb_byte *out,
-		   const gdb_byte *in)
+s390_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *type, struct regcache *regcache,
+		   gdb_byte *out, const gdb_byte *in)
 {
   int word_size = gdbarch_ptr_bit (gdbarch) / 8;
   int length = TYPE_LENGTH (type);
diff --git a/gdb/score-tdep.c b/gdb/score-tdep.c
index 4ef6200..709e0fa 100644
--- a/gdb/score-tdep.c
+++ b/gdb/score-tdep.c
@@ -414,8 +414,8 @@ score_xfer_register (struct regcache *regcache, int regnum, int length,
 }
 
 static enum return_value_convention
-score_return_value (struct gdbarch *gdbarch, struct type *type,
-                    struct regcache *regcache,
+score_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		    struct type *type, struct regcache *regcache,
                     gdb_byte * readbuf, const gdb_byte * writebuf)
 {
   if (TYPE_CODE (type) == TYPE_CODE_STRUCT
diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index 6aeb0e8..58a142a 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -51,9 +51,24 @@
 
 /* sh flags */
 #include "elf/sh.h"
+#include "elf/dwarf2.h"
 /* registers numbers shared with the simulator */
 #include "gdb/sim-sh.h"
 
+/* List of "set sh ..." and "show sh ..." commands.  */
+static struct cmd_list_element *setshcmdlist = NULL;
+static struct cmd_list_element *showshcmdlist = NULL;
+
+static const char sh_cc_gcc[] = "gcc";
+static const char sh_cc_renesas[] = "renesas";
+static const char *sh_cc_enum[] = {
+  sh_cc_gcc,
+  sh_cc_renesas, 
+  NULL
+};
+
+static const char *sh_active_calling_convention = sh_cc_gcc;
+
 static void (*sh_show_regs) (struct frame_info *);
 
 #define SH_NUM_REGS 67
@@ -73,6 +88,14 @@ struct sh_frame_cache
   CORE_ADDR saved_sp;
 };
 
+static int
+sh_is_renesas_calling_convention (struct type *func_type)
+{
+  return ((func_type
+	   && TYPE_CALLING_CONVENTION (func_type) == DW_CC_GNU_renesas_sh)
+	  || sh_active_calling_convention == sh_cc_renesas);
+}
+
 static const char *
 sh_sh_register_name (struct gdbarch *gdbarch, int reg_nr)
 {
@@ -783,11 +806,16 @@ sh_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
 */
 
 static int
-sh_use_struct_convention (int gcc_p, struct type *type)
+sh_use_struct_convention (int renesas_abi, struct type *type)
 {
   int len = TYPE_LENGTH (type);
   int nelem = TYPE_NFIELDS (type);
 
+  /* The Renesas ABI returns aggregate types always on stack.  */
+  if (renesas_abi && (TYPE_CODE (type) == TYPE_CODE_STRUCT
+		      || TYPE_CODE (type) == TYPE_CODE_UNION))
+    return 1;
+
   /* Non-power of 2 length types and types bigger than 8 bytes (which don't
      fit in two registers anyway) use struct convention.  */
   if (len != 1 && len != 2 && len != 4 && len != 8)
@@ -813,6 +841,15 @@ sh_use_struct_convention (int gcc_p, struct type *type)
   return 1;
 }
 
+static int
+sh_use_struct_convention_nofpu (int renesas_abi, struct type *type)
+{
+  /* The Renesas ABI returns long longs/doubles etc. always on stack.  */
+  if (renesas_abi && TYPE_NFIELDS (type) == 0 && TYPE_LENGTH (type) >= 8)
+    return 1;
+  return sh_use_struct_convention (renesas_abi, type);
+}
+
 static CORE_ADDR
 sh_frame_align (struct gdbarch *ignore, CORE_ADDR sp)
 {
@@ -924,7 +961,7 @@ sh_init_flt_argreg (void)
    29) the parity of the register number is preserved, which is important
    for the double register passing test (see the "argreg & 1" test below). */
 static int
-sh_next_flt_argreg (struct gdbarch *gdbarch, int len)
+sh_next_flt_argreg (struct gdbarch *gdbarch, int len, struct type *func_type)
 {
   int argreg;
 
@@ -943,7 +980,10 @@ sh_next_flt_argreg (struct gdbarch *gdbarch, int len)
       /* Doubles are always starting in a even register number. */
       if (argreg & 1)
 	{
-	  flt_argreg_array[argreg] = 1;
+	  /* In gcc ABI, the skipped register is lost for further argument
+	     passing now.  Not so in Renesas ABI.  */
+	  if (!sh_is_renesas_calling_convention (func_type))
+	    flt_argreg_array[argreg] = 1;
 
 	  ++argreg;
 
@@ -954,7 +994,8 @@ sh_next_flt_argreg (struct gdbarch *gdbarch, int len)
       /* Also mark the next register as used. */
       flt_argreg_array[argreg + 1] = 1;
     }
-  else if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE)
+  else if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE
+	   && !sh_is_renesas_calling_convention (func_type))
     {
       /* In little endian, gcc passes floats like this: f5, f4, f7, f6, ... */
       if (!flt_argreg_array[argreg + 1])
@@ -1026,20 +1067,25 @@ sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
   int argreg = ARG0_REGNUM;
   int flt_argreg = 0;
   int argnum;
+  struct type *func_type = value_type (function);
   struct type *type;
   CORE_ADDR regval;
   char *val;
   int len, reg_size = 0;
   int pass_on_stack = 0;
   int treat_as_flt;
+  int last_reg_arg = INT_MAX;
+
+  /* The Renesas ABI expects all varargs arguments, plus the last
+     non-vararg argument to be on the stack, no matter how many
+     registers have been used so far.  */
+  if (sh_is_renesas_calling_convention (func_type)
+      && (TYPE_FLAGS (func_type) & TYPE_FLAG_VARARGS))
+    last_reg_arg = TYPE_NFIELDS (func_type) - 2;
 
   /* first force sp to a 4-byte alignment */
   sp = sh_frame_align (gdbarch, sp);
 
-  if (struct_return)
-    regcache_cooked_write_unsigned (regcache,
-				    STRUCT_RETURN_REGNUM, struct_addr);
-
   /* make room on stack for args */
   sp -= sh_stack_allocsize (nargs, args);
 
@@ -1062,7 +1108,14 @@ sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
       /* Find out the next register to use for a floating point value. */
       treat_as_flt = sh_treat_as_flt_p (type);
       if (treat_as_flt)
-	flt_argreg = sh_next_flt_argreg (gdbarch, len);
+	flt_argreg = sh_next_flt_argreg (gdbarch, len, func_type);
+      /* In Renesas ABI, long longs and aggregate types are always passed
+	 on stack.  */
+      else if (sh_is_renesas_calling_convention (func_type)
+	       && ((TYPE_CODE (type) == TYPE_CODE_INT && len == 8)
+		   || TYPE_CODE (type) == TYPE_CODE_STRUCT
+		   || TYPE_CODE (type) == TYPE_CODE_UNION))
+	pass_on_stack = 1;
       /* In contrast to non-FPU CPUs, arguments are never split between
 	 registers and stack.  If an argument doesn't fit in the remaining
 	 registers it's always pushed entirely on the stack.  */
@@ -1073,7 +1126,8 @@ sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
 	{
 	  if ((treat_as_flt && flt_argreg > FLOAT_ARGLAST_REGNUM)
 	      || (!treat_as_flt && (argreg > ARGLAST_REGNUM
-	                            || pass_on_stack)))
+	                            || pass_on_stack))
+	      || argnum > last_reg_arg)
 	    {
 	      /* The data goes entirely on the stack, 4-byte aligned. */
 	      reg_size = (len + 3) & ~3;
@@ -1116,6 +1170,19 @@ sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
 	}
     }
 
+  if (struct_return)
+    {
+      if (sh_is_renesas_calling_convention (func_type))
+	/* If the function uses the Renesas ABI, subtract another 4 bytes from
+	   the stack and store the struct return address there.  */
+	write_memory_unsigned_integer (sp -= 4, 4, struct_addr);
+      else
+	/* Using the gcc ABI, the "struct return pointer" pseudo-argument has
+	   its own dedicated register.  */
+	regcache_cooked_write_unsigned (regcache,
+					STRUCT_RETURN_REGNUM, struct_addr);
+    }
+
   /* Store return address. */
   regcache_cooked_write_unsigned (regcache, PR_REGNUM, bp_addr);
 
@@ -1138,18 +1205,24 @@ sh_push_dummy_call_nofpu (struct gdbarch *gdbarch,
   int stack_offset = 0;
   int argreg = ARG0_REGNUM;
   int argnum;
+  struct type *func_type = value_type (function);
   struct type *type;
   CORE_ADDR regval;
   char *val;
-  int len, reg_size;
+  int len, reg_size = 0;
+  int pass_on_stack = 0;
+  int last_reg_arg = INT_MAX;
+
+  /* The Renesas ABI expects all varargs arguments, plus the last
+     non-vararg argument to be on the stack, no matter how many
+     registers have been used so far.  */
+  if (sh_is_renesas_calling_convention (func_type)
+      && (TYPE_FLAGS (func_type) & TYPE_FLAG_VARARGS))
+    last_reg_arg = TYPE_NFIELDS (func_type) - 2;
 
   /* first force sp to a 4-byte alignment */
   sp = sh_frame_align (gdbarch, sp);
 
-  if (struct_return)
-    regcache_cooked_write_unsigned (regcache,
-				    STRUCT_RETURN_REGNUM, struct_addr);
-
   /* make room on stack for args */
   sp -= sh_stack_allocsize (nargs, args);
 
@@ -1162,9 +1235,21 @@ sh_push_dummy_call_nofpu (struct gdbarch *gdbarch,
       len = TYPE_LENGTH (type);
       val = sh_justify_value_in_reg (gdbarch, args[argnum], len);
 
+      /* Some decisions have to be made how various types are handled.
+	 This also differs in different ABIs. */
+      pass_on_stack = 0;
+      /* Renesas ABI pushes doubles and long longs entirely on stack.
+	 Same goes for aggregate types.  */
+      if (sh_is_renesas_calling_convention (func_type)
+	  && ((TYPE_CODE (type) == TYPE_CODE_INT && len >= 8)
+	      || (TYPE_CODE (type) == TYPE_CODE_FLT && len >= 8)
+	      || TYPE_CODE (type) == TYPE_CODE_STRUCT
+	      || TYPE_CODE (type) == TYPE_CODE_UNION))
+	pass_on_stack = 1;
       while (len > 0)
 	{
-	  if (argreg > ARGLAST_REGNUM)
+	  if (argreg > ARGLAST_REGNUM || pass_on_stack
+	      || argnum > last_reg_arg)
 	    {
 	      /* The remainder of the data goes entirely on the stack,
 	         4-byte aligned. */
@@ -1187,6 +1272,19 @@ sh_push_dummy_call_nofpu (struct gdbarch *gdbarch,
 	}
     }
 
+  if (struct_return)
+    {
+      if (sh_is_renesas_calling_convention (func_type))
+	/* If the function uses the Renesas ABI, subtract another 4 bytes from
+	   the stack and store the struct return address there.  */
+	write_memory_unsigned_integer (sp -= 4, 4, struct_addr);
+      else
+	/* Using the gcc ABI, the "struct return pointer" pseudo-argument has
+	   its own dedicated register.  */
+	regcache_cooked_write_unsigned (regcache,
+					STRUCT_RETURN_REGNUM, struct_addr);
+    }
+
   /* Store return address. */
   regcache_cooked_write_unsigned (regcache, PR_REGNUM, bp_addr);
 
@@ -1292,11 +1390,12 @@ sh_store_return_value_fpu (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-sh_return_value_nofpu (struct gdbarch *gdbarch, struct type *type,
-		       struct regcache *regcache,
+sh_return_value_nofpu (struct gdbarch *gdbarch, struct type *func_type,
+		       struct type *type, struct regcache *regcache,
 		       gdb_byte *readbuf, const gdb_byte *writebuf)
 {
-  if (sh_use_struct_convention (0, type))
+  if (sh_use_struct_convention_nofpu (
+  	sh_is_renesas_calling_convention (func_type), type))
     return RETURN_VALUE_STRUCT_CONVENTION;
   if (writebuf)
     sh_store_return_value_nofpu (type, regcache, writebuf);
@@ -1306,11 +1405,12 @@ sh_return_value_nofpu (struct gdbarch *gdbarch, struct type *type,
 }
 
 static enum return_value_convention
-sh_return_value_fpu (struct gdbarch *gdbarch, struct type *type,
-		     struct regcache *regcache,
+sh_return_value_fpu (struct gdbarch *gdbarch, struct type *func_type,
+		     struct type *type, struct regcache *regcache,
 		     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
-  if (sh_use_struct_convention (0, type))
+  if (sh_use_struct_convention (
+	sh_is_renesas_calling_convention (func_type), type))
     return RETURN_VALUE_STRUCT_CONVENTION;
   if (writebuf)
     sh_store_return_value_fpu (type, regcache, writebuf);
@@ -2879,6 +2979,20 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   return gdbarch;
 }
 
+static void
+show_sh_command (char *args, int from_tty)
+{
+  help_list (showshcmdlist, "show sh ", all_commands, gdb_stdout);
+}
+
+static void
+set_sh_command (char *args, int from_tty)
+{
+  printf_unfiltered
+    ("\"set sh\" must be followed by an appropriate subcommand.\n");
+  help_list (setshcmdlist, "set sh ", all_commands, gdb_stdout);
+}
+
 extern initialize_file_ftype _initialize_sh_tdep;	/* -Wmissing-prototypes */
 
 void
@@ -2889,4 +3003,20 @@ _initialize_sh_tdep (void)
   gdbarch_register (bfd_arch_sh, sh_gdbarch_init, NULL);
 
   add_com ("regs", class_vars, sh_show_regs_command, _("Print all registers"));
+  
+  add_prefix_cmd ("sh", no_class, set_sh_command, "SH specific commands.",
+                  &setshcmdlist, "set sh ", 0, &setlist);
+  add_prefix_cmd ("sh", no_class, show_sh_command, "SH specific commands.",
+                  &showshcmdlist, "show sh ", 0, &showlist);
+  
+  add_setshow_enum_cmd ("calling-convention", class_vars, sh_cc_enum,
+			&sh_active_calling_convention,
+			_("Set calling convention used when calling target "
+			  "functions from GDB."),
+			_("Show calling convention used when calling target "
+			  "functions from GDB."),
+			_("gcc       - Use GCC calling convention (default).\n"
+			  "renesas   - Enforce Renesas calling convention."),
+			NULL, NULL,
+			&setshcmdlist, &showshcmdlist);
 }
diff --git a/gdb/sh64-tdep.c b/gdb/sh64-tdep.c
index d4d93d6..10e6099 100644
--- a/gdb/sh64-tdep.c
+++ b/gdb/sh64-tdep.c
@@ -1301,8 +1301,8 @@ sh64_store_return_value (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-sh64_return_value (struct gdbarch *gdbarch, struct type *type,
-		   struct regcache *regcache,
+sh64_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *type, struct regcache *regcache,
 		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (sh64_use_struct_convention (type))
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 4d690ef..0140c0f 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -388,7 +388,8 @@ sparc32_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp,
   *bp_addr = sp - 4;
   *real_pc = funcaddr;
 
-  if (using_struct_return (value_type))
+  if (using_struct_return (SYMBOL_TYPE (find_pc_function (funcaddr)),
+			   value_type))
     {
       gdb_byte buf[4];
 
@@ -1148,9 +1149,9 @@ sparc32_store_return_value (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-sparc32_return_value (struct gdbarch *gdbarch, struct type *type,
-		      struct regcache *regcache, gdb_byte *readbuf,
-		      const gdb_byte *writebuf)
+sparc32_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		      struct type *type, struct regcache *regcache,
+		      gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   /* The psABI says that "...every stack frame reserves the word at
      %fp+64.  If a function returns a structure, union, or
diff --git a/gdb/sparc64-tdep.c b/gdb/sparc64-tdep.c
index 371d02e..36565b2 100644
--- a/gdb/sparc64-tdep.c
+++ b/gdb/sparc64-tdep.c
@@ -1067,9 +1067,9 @@ sparc64_store_return_value (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-sparc64_return_value (struct gdbarch *gdbarch, struct type *type,
-		      struct regcache *regcache, gdb_byte *readbuf,
-		      const gdb_byte *writebuf)
+sparc64_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		      struct type *type, struct regcache *regcache,
+		      gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (TYPE_LENGTH (type) > 32)
     return RETURN_VALUE_STRUCT_CONVENTION;
diff --git a/gdb/spu-tdep.c b/gdb/spu-tdep.c
index 882b613..fef42e6 100644
--- a/gdb/spu-tdep.c
+++ b/gdb/spu-tdep.c
@@ -1204,8 +1204,9 @@ spu_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
 /* Function return value access.  */
 
 static enum return_value_convention
-spu_return_value (struct gdbarch *gdbarch, struct type *type,
-                  struct regcache *regcache, gdb_byte *out, const gdb_byte *in)
+spu_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		  struct type *type, struct regcache *regcache,
+		  gdb_byte *out, const gdb_byte *in)
 {
   enum return_value_convention rvc;
 
diff --git a/gdb/stack.c b/gdb/stack.c
index 374848b..414a59a 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -1834,7 +1834,7 @@ return_command (char *retval_exp, int from_tty)
            is discarded, side effects such as "return i++" still
            occur.  */
 	return_value = NULL;
-      else if (using_struct_return (return_type))
+      else if (using_struct_return (SYMBOL_TYPE (thisfun), return_type))
 	{
 	  query_prefix = "\
 The location at which to store the function's return value is unknown.\n\
@@ -1888,9 +1888,10 @@ If you continue, the return value that you specified will be ignored.\n";
     {
       struct type *return_type = value_type (return_value);
       struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ());
-      gdb_assert (gdbarch_return_value (gdbarch, return_type, NULL, NULL, NULL)
+      gdb_assert (gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun),
+      					return_type, NULL, NULL, NULL)
 		  == RETURN_VALUE_REGISTER_CONVENTION);
-      gdbarch_return_value (gdbarch, return_type,
+      gdbarch_return_value (gdbarch, SYMBOL_TYPE (thisfun), return_type,
 			    get_current_regcache (), NULL /*read*/,
 			    value_contents (return_value) /*write*/);
     }
diff --git a/gdb/v850-tdep.c b/gdb/v850-tdep.c
index 2891d1a..5349329 100644
--- a/gdb/v850-tdep.c
+++ b/gdb/v850-tdep.c
@@ -790,8 +790,8 @@ v850_store_return_value (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-v850_return_value (struct gdbarch *gdbarch, struct type *type,
-		   struct regcache *regcache,
+v850_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		   struct type *type, struct regcache *regcache,
 		   gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (v850_use_struct_convention (type))
diff --git a/gdb/value.c b/gdb/value.c
index e620550..2cb989d 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -1705,7 +1705,7 @@ coerce_enum (struct value *arg)
    address as a hidden first parameter).  */
 
 int
-using_struct_return (struct type *value_type)
+using_struct_return (struct type *func_type, struct type *value_type)
 {
   enum type_code code = TYPE_CODE (value_type);
 
@@ -1718,7 +1718,7 @@ using_struct_return (struct type *value_type)
     return 0;
 
   /* Probe the architecture for the return-value convention.  */
-  return (gdbarch_return_value (current_gdbarch, value_type,
+  return (gdbarch_return_value (current_gdbarch, func_type, value_type,
 				NULL, NULL, NULL)
 	  != RETURN_VALUE_REGISTER_CONVENTION);
 }
diff --git a/gdb/value.h b/gdb/value.h
index 55eb253..731b6be 100644
--- a/gdb/value.h
+++ b/gdb/value.h
@@ -410,7 +410,8 @@ extern struct value *value_in (struct value *element, struct value *set);
 extern int value_bit_index (struct type *type, const gdb_byte *addr,
 			    int index);
 
-extern int using_struct_return (struct type *value_type);
+extern int using_struct_return (struct type *func_type,
+				struct type *value_type);
 
 extern struct value *evaluate_expression (struct expression *exp);
 
diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c
index cd39645..4daf95d 100644
--- a/gdb/vax-tdep.c
+++ b/gdb/vax-tdep.c
@@ -201,9 +201,9 @@ vax_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
 
 
 static enum return_value_convention
-vax_return_value (struct gdbarch *gdbarch, struct type *type,
-		  struct regcache *regcache, gdb_byte *readbuf,
-		  const gdb_byte *writebuf)
+vax_return_value (struct gdbarch *gdbarch, struct type *func_type,
+		  struct type *type, struct regcache *regcache,
+		  gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   int len = TYPE_LENGTH (type);
   gdb_byte buf[8];
diff --git a/gdb/xstormy16-tdep.c b/gdb/xstormy16-tdep.c
index 78173cf..d21e15d 100644
--- a/gdb/xstormy16-tdep.c
+++ b/gdb/xstormy16-tdep.c
@@ -198,8 +198,8 @@ xstormy16_store_return_value (struct type *type, struct regcache *regcache,
 }
 
 static enum return_value_convention
-xstormy16_return_value (struct gdbarch *gdbarch, struct type *type,
-			struct regcache *regcache,
+xstormy16_return_value (struct gdbarch *gdbarch, struct type *func_type,
+			struct type *type, struct regcache *regcache,
 			gdb_byte *readbuf, const gdb_byte *writebuf)
 {
   if (xstormy16_use_struct_convention (type))
diff --git a/gdb/xtensa-tdep.c b/gdb/xtensa-tdep.c
index 16434b4..0ed254f 100644
--- a/gdb/xtensa-tdep.c
+++ b/gdb/xtensa-tdep.c
@@ -1519,6 +1519,7 @@ xtensa_store_return_value (struct type *type,
 
 static enum return_value_convention
 xtensa_return_value (struct gdbarch *gdbarch,
+		     struct type *func_type,
 		     struct type *valtype,
 		     struct regcache *regcache,
 		     gdb_byte *readbuf,