Pass return_method to _push_dummy_call

gdb/ChangeLog:

	* aarch64-tdep.c (aarch64_push_dummy_call): Replace arg with
	return_method.
	* alpha-tdep.c (alpha_push_dummy_call): Likewise.
	* amd64-tdep.c (amd64_push_arguments): Likewise.
	(amd64_push_dummy_call): Likewise.
	* amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise.
	* arc-tdep.c (arc_push_dummy_call): Likewise.
	* arm-tdep.c (arm_push_dummy_call): Likewise.
	* avr-tdep.c (avr_push_dummy_call): Likewise.
	* bfin-tdep.c (bfin_push_dummy_call): Likewise.
	* cris-tdep.c (cris_push_dummy_call): Likewise.
	* csky-tdep.c (csky_push_dummy_call): Likewise.
	* frv-tdep.c (frv_push_dummy_call): Likewise.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Regenerate.
	* gdbarch.sh (gdbarch_push_dummy_call): Replace arg with
	return_method.
	* h8300-tdep.c (h8300_push_dummy_call): Likewise.
	* hppa-tdep.c (hppa32_push_dummy_call): Likewise.
	(hppa64_push_dummy_call): Likewise.
	* i386-darwin-tdep.c (i386_darwin_push_dummy_call): Likewise.
	* i386-tdep.c (i386_push_dummy_call): Likewise.
	* ia64-tdep.c (ia64_push_dummy_call): Likewise.
	* infcall.c (call_function_by_hand_dummy): Likewise.
	* iq2000-tdep.c (iq2000_push_dummy_call): Likewise.
	* lm32-tdep.c (lm32_push_dummy_call): Likewise.
	* m32c-tdep.c (m32c_push_dummy_call): Likewise.
	* m32r-tdep.c (m32r_push_dummy_call): Likewise.
	* m68hc11-tdep.c (m68hc11_push_dummy_call): Likewise.
	* m68k-tdep.c (m68k_push_dummy_call): Likewise.
	* mep-tdep.c (mep_push_dummy_call): Likewise.
	* mips-tdep.c (mips_eabi_push_dummy_call): Likewise.
	(mips_n32n64_push_dummy_call): Likewise.
	(mips_o32_push_dummy_call): Likewise.
	(mips_o64_push_dummy_call): Likewise.
	* mn10300-tdep.c (mn10300_push_dummy_call): Likewise.
	* msp430-tdep.c (msp430_push_dummy_call): Likewise.
	* nds32-tdep.c (nds32_push_dummy_call): Likewise.
	* nios2-tdep.c (nios2_push_dummy_call): Likewise.
	* or1k-tdep.c (or1k_push_dummy_call): Likewise.
	* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Likewise.
	(ppc64_sysv_abi_push_dummy_call): Likewise.
	* ppc-tdep.h (ppc_sysv_abi_push_dummy_call): Likewise.
	(ppc64_sysv_abi_push_dummy_call): Likewise.
	* riscv-tdep.c (riscv_push_dummy_call): Likewise.
	* rl78-tdep.c (rl78_push_dummy_call): Likewise.
	* rs6000-aix-tdep.c (rs6000_push_dummy_call): Likewise.
	* rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Likewise.
	* rx-tdep.c (rx_push_dummy_call): Likewise.
	* s390-tdep.c (s390_push_dummy_call): Likewise.
	* score-tdep.c (score_push_dummy_call): Likewise.
	* sh-tdep.c (sh_push_dummy_call_fpu): Likewise.
	(sh_push_dummy_call_nofpu): Likewise.
	* sparc-tdep.c (sparc32_store_arguments): Likewise.
	(sparc32_push_dummy_call): Likewise.
	* sparc64-tdep.c (sparc64_store_arguments): Likewise.
	(sparc64_push_dummy_call): Likewise.
	* spu-tdep.c (spu_push_dummy_call): Likewise.
	* tic6x-tdep.c (tic6x_push_dummy_call): Likewise.
	* tilegx-tdep.c (tilegx_push_dummy_call): Likewise.
	* v850-tdep.c (v850_push_dummy_call): Likewise.
	* vax-tdep.c (vax_push_dummy_call): Likewise.
	* xstormy16-tdep.c (xstormy16_push_dummy_call): Likewise.
	* xtensa-tdep.c (xtensa_push_dummy_call): Likewise.

53 files changed, 271 insertions, 165 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6b19374..4ff2767 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,72 @@
 2018-11-16  Alan Hayward  <alan.hayward@arm.com>
 
+	* aarch64-tdep.c (aarch64_push_dummy_call): Replace arg with
+	return_method.
+	* alpha-tdep.c (alpha_push_dummy_call): Likewise.
+	* amd64-tdep.c (amd64_push_arguments): Likewise.
+	(amd64_push_dummy_call): Likewise.
+	* amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise.
+	* arc-tdep.c (arc_push_dummy_call): Likewise.
+	* arm-tdep.c (arm_push_dummy_call): Likewise.
+	* avr-tdep.c (avr_push_dummy_call): Likewise.
+	* bfin-tdep.c (bfin_push_dummy_call): Likewise.
+	* cris-tdep.c (cris_push_dummy_call): Likewise.
+	* csky-tdep.c (csky_push_dummy_call): Likewise.
+	* frv-tdep.c (frv_push_dummy_call): Likewise.
+	* gdbarch.c: Regenerate.
+	* gdbarch.h: Regenerate.
+	* gdbarch.sh (gdbarch_push_dummy_call): Replace arg with
+	return_method.
+	* h8300-tdep.c (h8300_push_dummy_call): Likewise.
+	* hppa-tdep.c (hppa32_push_dummy_call): Likewise.
+	(hppa64_push_dummy_call): Likewise.
+	* i386-darwin-tdep.c (i386_darwin_push_dummy_call): Likewise.
+	* i386-tdep.c (i386_push_dummy_call): Likewise.
+	* ia64-tdep.c (ia64_push_dummy_call): Likewise.
+	* infcall.c (call_function_by_hand_dummy): Likewise.
+	* iq2000-tdep.c (iq2000_push_dummy_call): Likewise.
+	* lm32-tdep.c (lm32_push_dummy_call): Likewise.
+	* m32c-tdep.c (m32c_push_dummy_call): Likewise.
+	* m32r-tdep.c (m32r_push_dummy_call): Likewise.
+	* m68hc11-tdep.c (m68hc11_push_dummy_call): Likewise.
+	* m68k-tdep.c (m68k_push_dummy_call): Likewise.
+	* mep-tdep.c (mep_push_dummy_call): Likewise.
+	* mips-tdep.c (mips_eabi_push_dummy_call): Likewise.
+	(mips_n32n64_push_dummy_call): Likewise.
+	(mips_o32_push_dummy_call): Likewise.
+	(mips_o64_push_dummy_call): Likewise.
+	* mn10300-tdep.c (mn10300_push_dummy_call): Likewise.
+	* msp430-tdep.c (msp430_push_dummy_call): Likewise.
+	* nds32-tdep.c (nds32_push_dummy_call): Likewise.
+	* nios2-tdep.c (nios2_push_dummy_call): Likewise.
+	* or1k-tdep.c (or1k_push_dummy_call): Likewise.
+	* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Likewise.
+	(ppc64_sysv_abi_push_dummy_call): Likewise.
+	* ppc-tdep.h (ppc_sysv_abi_push_dummy_call): Likewise.
+	(ppc64_sysv_abi_push_dummy_call): Likewise.
+	* riscv-tdep.c (riscv_push_dummy_call): Likewise.
+	* rl78-tdep.c (rl78_push_dummy_call): Likewise.
+	* rs6000-aix-tdep.c (rs6000_push_dummy_call): Likewise.
+	* rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Likewise.
+	* rx-tdep.c (rx_push_dummy_call): Likewise.
+	* s390-tdep.c (s390_push_dummy_call): Likewise.
+	* score-tdep.c (score_push_dummy_call): Likewise.
+	* sh-tdep.c (sh_push_dummy_call_fpu): Likewise.
+	(sh_push_dummy_call_nofpu): Likewise.
+	* sparc-tdep.c (sparc32_store_arguments): Likewise.
+	(sparc32_push_dummy_call): Likewise.
+	* sparc64-tdep.c (sparc64_store_arguments): Likewise.
+	(sparc64_push_dummy_call): Likewise.
+	* spu-tdep.c (spu_push_dummy_call): Likewise.
+	* tic6x-tdep.c (tic6x_push_dummy_call): Likewise.
+	* tilegx-tdep.c (tilegx_push_dummy_call): Likewise.
+	* v850-tdep.c (v850_push_dummy_call): Likewise.
+	* vax-tdep.c (vax_push_dummy_call): Likewise.
+	* xstormy16-tdep.c (xstormy16_push_dummy_call): Likewise.
+	* xtensa-tdep.c (xtensa_push_dummy_call): Likewise.
+
+2018-11-16  Alan Hayward  <alan.hayward@arm.com>
+
 	* gdbarch.sh (enum function_call_return_method): Add enum.
 	* gdbarch.h: Regenerate.
 	* infcall.c (call_function_by_hand_dummy): Replace vars with enum.
diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
index 51f1632..7a0d5b3 100644
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -1514,7 +1514,8 @@ static CORE_ADDR
 aarch64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			 struct regcache *regcache, CORE_ADDR bp_addr,
 			 int nargs,
-			 struct value **args, CORE_ADDR sp, int struct_return,
+			 struct value **args, CORE_ADDR sp,
+			 function_call_return_method return_method,
 			 CORE_ADDR struct_addr)
 {
   int argnum;
@@ -1578,7 +1579,7 @@ aarch64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     }
 
   /* The struct_return pointer occupies X8.  */
-  if (struct_return || lang_struct_return)
+  if (return_method == return_method_struct || lang_struct_return)
     {
       if (aarch64_debug)
 	{
diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c
index e649bd2..91bbe06 100644
--- a/gdb/alpha-tdep.c
+++ b/gdb/alpha-tdep.c
@@ -295,11 +295,12 @@ static CORE_ADDR
 alpha_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		       struct regcache *regcache, CORE_ADDR bp_addr,
 		       int nargs, struct value **args, CORE_ADDR sp,
-		       int struct_return, CORE_ADDR struct_addr)
+		       function_call_return_method return_method,
+		       CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int i;
-  int accumulate_size = struct_return ? 8 : 0;
+  int accumulate_size = (return_method == return_method_struct) ? 8 : 0;
   struct alpha_arg
     {
       const gdb_byte *contents;
@@ -446,7 +447,7 @@ alpha_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
       /* Everything else goes to the stack.  */
       write_memory (sp + offset - sizeof(arg_reg_buffer), contents, len);
     }
-  if (struct_return)
+  if (return_method == return_method_struct)
     store_unsigned_integer (arg_reg_buffer, ALPHA_REGISTER_SIZE,
 			    byte_order, struct_addr);
 
diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index abf3e4d..614b6fd 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -861,8 +861,8 @@ amd64_return_value (struct gdbarch *gdbarch, struct value *function,
 
 
 static CORE_ADDR
-amd64_push_arguments (struct regcache *regcache, int nargs,
-		      struct value **args, CORE_ADDR sp, int struct_return)
+amd64_push_arguments (struct regcache *regcache, int nargs, struct value **args,
+		      CORE_ADDR sp, function_call_return_method return_method)
 {
   static int integer_regnum[] =
   {
@@ -890,7 +890,7 @@ amd64_push_arguments (struct regcache *regcache, int nargs,
   int i;
 
   /* Reserve a register for the "hidden" argument.  */
-  if (struct_return)
+if (return_method == return_method_struct)
     integer_reg++;
 
   for (i = 0; i < nargs; i++)
@@ -996,7 +996,8 @@ static CORE_ADDR
 amd64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		       struct regcache *regcache, CORE_ADDR bp_addr,
 		       int nargs, struct value **args,	CORE_ADDR sp,
-		       int struct_return, CORE_ADDR struct_addr)
+		       function_call_return_method return_method,
+		       CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   gdb_byte buf[8];
@@ -1009,10 +1010,10 @@ amd64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   i387_reset_bnd_regs (gdbarch, regcache);
 
   /* Pass arguments.  */
-  sp = amd64_push_arguments (regcache, nargs, args, sp, struct_return);
+  sp = amd64_push_arguments (regcache, nargs, args, sp, return_method);
 
   /* Pass "hidden" argument".  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       store_unsigned_integer (buf, 8, byte_order, struct_addr);
       regcache->cooked_write (AMD64_RDI_REGNUM, buf);
diff --git a/gdb/amd64-windows-tdep.c b/gdb/amd64-windows-tdep.c
index 904875b..9eedbde 100644
--- a/gdb/amd64-windows-tdep.c
+++ b/gdb/amd64-windows-tdep.c
@@ -157,7 +157,7 @@ amd64_windows_store_arg_in_reg (struct regcache *regcache,
 static CORE_ADDR
 amd64_windows_push_arguments (struct regcache *regcache, int nargs,
 			      struct value **args, CORE_ADDR sp,
-			      int struct_return)
+			      function_call_return_method return_method)
 {
   int reg_idx = 0;
   int i;
@@ -180,7 +180,7 @@ amd64_windows_push_arguments (struct regcache *regcache, int nargs,
   }
 
   /* Reserve a register for the "hidden" argument.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     reg_idx++;
 
   for (i = 0; i < nargs; i++)
@@ -244,18 +244,18 @@ static CORE_ADDR
 amd64_windows_push_dummy_call
   (struct gdbarch *gdbarch, struct value *function,
    struct regcache *regcache, CORE_ADDR bp_addr,
-   int nargs, struct value **args,
-   CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr)
+   int nargs, struct value **args, CORE_ADDR sp,
+   function_call_return_method return_method, CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   gdb_byte buf[8];
 
   /* Pass arguments.  */
   sp = amd64_windows_push_arguments (regcache, nargs, args, sp,
-				     struct_return);
+				     return_method);
 
   /* Pass "hidden" argument".  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       /* The "hidden" argument is passed throught the first argument
          register.  */
diff --git a/gdb/arc-tdep.c b/gdb/arc-tdep.c
index b9dcbbc..c3c7839 100644
--- a/gdb/arc-tdep.c
+++ b/gdb/arc-tdep.c
@@ -592,7 +592,8 @@ arc_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
 static CORE_ADDR
 arc_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		     struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		     struct value **args, CORE_ADDR sp, int struct_return,
+		     struct value **args, CORE_ADDR sp,
+		     function_call_return_method return_method,
 		     CORE_ADDR struct_addr)
 {
   if (arc_debug)
@@ -607,7 +608,7 @@ arc_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
      value return?  If so, struct_addr is the address of the reserved space for
      the return structure to be written on the stack, and that address is
      passed to that function as a hidden first argument.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       /* Pass the return address in the first argument register.  */
       regcache_cooked_write_unsigned (regcache, arg_reg, struct_addr);
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 0165e92..157f926 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -3683,7 +3683,8 @@ arm_vfp_abi_for_function (struct gdbarch *gdbarch, struct type *func_type)
 static CORE_ADDR
 arm_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		     struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		     struct value **args, CORE_ADDR sp, int struct_return,
+		     struct value **args, CORE_ADDR sp,
+		     function_call_return_method return_method,
 		     CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -3718,7 +3719,7 @@ arm_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* The struct_return pointer occupies the first parameter
      passing register.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (arm_debug)
 	fprintf_unfiltered (gdb_stdlog, "struct return in %s = %s\n",
diff --git a/gdb/avr-tdep.c b/gdb/avr-tdep.c
index 9e14007..b70f06e 100644
--- a/gdb/avr-tdep.c
+++ b/gdb/avr-tdep.c
@@ -1263,7 +1263,8 @@ static CORE_ADDR
 avr_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
                      struct regcache *regcache, CORE_ADDR bp_addr,
                      int nargs, struct value **args, CORE_ADDR sp,
-                     int struct_return, CORE_ADDR struct_addr)
+		     function_call_return_method return_method,
+		     CORE_ADDR struct_addr)
 {
   int i;
   gdb_byte buf[3];
@@ -1272,7 +1273,7 @@ avr_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   int regnum = AVR_ARGN_REGNUM;
   struct stack_item *si = NULL;
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned
         (regcache, regnum--, (struct_addr >> 8) & 0xff);
diff --git a/gdb/bfin-tdep.c b/gdb/bfin-tdep.c
index c84625c..b064a6c 100644
--- a/gdb/bfin-tdep.c
+++ b/gdb/bfin-tdep.c
@@ -498,7 +498,7 @@ bfin_push_dummy_call (struct gdbarch *gdbarch,
 		      int nargs,
 		      struct value **args,
 		      CORE_ADDR sp,
-		      int struct_return,
+		      function_call_return_method return_method,
 		      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -543,7 +543,7 @@ bfin_push_dummy_call (struct gdbarch *gdbarch,
 
   /* Store struct value address.  */
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, BFIN_P0_REGNUM, struct_addr);
 
   /* Set the dummy return value to bp_addr.
diff --git a/gdb/cris-tdep.c b/gdb/cris-tdep.c
index e0371a2..f9fdd86 100644
--- a/gdb/cris-tdep.c
+++ b/gdb/cris-tdep.c
@@ -808,7 +808,8 @@ static CORE_ADDR
 cris_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr,
 		      int nargs, struct value **args, CORE_ADDR sp,
-		      int struct_return, CORE_ADDR struct_addr)
+		      function_call_return_method return_method,
+		      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int argreg;
@@ -822,10 +823,8 @@ cris_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   /* Are we returning a value using a structure return or a normal value
      return?  struct_addr is the address of the reserved space for the return
      structure to be written on the stack.  */
-  if (struct_return)
-    {
-      regcache_cooked_write_unsigned (regcache, STR_REGNUM, struct_addr);
-    }
+  if (return_method == return_method_struct)
+    regcache_cooked_write_unsigned (regcache, STR_REGNUM, struct_addr);
 
   /* Now load as many as possible of the first arguments into registers,
      and push the rest onto the stack.  */
diff --git a/gdb/csky-tdep.c b/gdb/csky-tdep.c
index f843732..ed56aed 100644
--- a/gdb/csky-tdep.c
+++ b/gdb/csky-tdep.c
@@ -336,7 +336,8 @@ static CORE_ADDR
 csky_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr,
 		      int nargs, struct value **args, CORE_ADDR sp,
-		      int struct_return, CORE_ADDR struct_addr)
+		      function_call_return_method return_method,
+		      CORE_ADDR struct_addr)
 {
   int argnum;
   int argreg = CSKY_ABI_A0_REGNUM;
@@ -351,7 +352,7 @@ csky_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* The struct_return pointer occupies the first parameter
      passing register.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (csky_debug)
 	{
diff --git a/gdb/frv-tdep.c b/gdb/frv-tdep.c
index dafab75..f5c7000 100644
--- a/gdb/frv-tdep.c
+++ b/gdb/frv-tdep.c
@@ -1193,7 +1193,8 @@ static CORE_ADDR
 frv_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
                      struct regcache *regcache, CORE_ADDR bp_addr,
                      int nargs, struct value **args, CORE_ADDR sp,
-		     int struct_return, CORE_ADDR struct_addr)
+		     function_call_return_method return_method,
+		     CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int argreg;
@@ -1230,7 +1231,7 @@ frv_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   argreg = 8;
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, struct_return_regnum,
                                     struct_addr);
 
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index e2abf26..bc4f786 100644
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -2356,13 +2356,13 @@ gdbarch_push_dummy_call_p (struct gdbarch *gdbarch)
 }
 
 CORE_ADDR
-gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr)
+gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr)
 {
   gdb_assert (gdbarch != NULL);
   gdb_assert (gdbarch->push_dummy_call != NULL);
   if (gdbarch_debug >= 2)
     fprintf_unfiltered (gdb_stdlog, "gdbarch_push_dummy_call called\n");
-  return gdbarch->push_dummy_call (gdbarch, function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr);
+  return gdbarch->push_dummy_call (gdbarch, function, regcache, bp_addr, nargs, args, sp, return_method, struct_addr);
 }
 
 void
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index e8e35fb..8356e6e 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -417,8 +417,8 @@ extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int depre
 
 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 
-typedef CORE_ADDR (gdbarch_push_dummy_call_ftype) (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr);
-extern CORE_ADDR gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr);
+typedef CORE_ADDR (gdbarch_push_dummy_call_ftype) (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr);
+extern CORE_ADDR gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr);
 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 
 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index 1e895c3..ddd93c2 100755
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -485,7 +485,7 @@ M;struct frame_id;dummy_id;struct frame_info *this_frame;this_frame
 # deprecated_fp_regnum.
 v;int;deprecated_fp_regnum;;;-1;-1;;0
 
-M;CORE_ADDR;push_dummy_call;struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr;function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
+M;CORE_ADDR;push_dummy_call;struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr;function, regcache, bp_addr, nargs, args, sp, return_method, struct_addr
 v;int;call_dummy_location;;;;AT_ENTRY_POINT;;0
 M;CORE_ADDR;push_dummy_code;CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache;sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache
 
diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index 2334582..eb4efd9 100644
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -634,7 +634,8 @@ static CORE_ADDR
 h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		       struct regcache *regcache, CORE_ADDR bp_addr,
 		       int nargs, struct value **args, CORE_ADDR sp,
-		       int struct_return, CORE_ADDR struct_addr)
+		       function_call_return_method return_method,
+		       CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int stack_alloc = 0, stack_offset = 0;
@@ -657,7 +658,7 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
      If we're returning a structure by value, then we must pass a
      pointer to the buffer for the return value as an invisible first
      argument.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, reg++, struct_addr);
 
   for (argument = 0; argument < nargs; argument++)
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index 319096e..d22b2cf 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -714,7 +714,8 @@ static CORE_ADDR
 hppa32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			struct regcache *regcache, CORE_ADDR bp_addr,
 			int nargs, struct value **args, CORE_ADDR sp,
-			int struct_return, CORE_ADDR struct_addr)
+			function_call_return_method return_method,
+			CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
 
@@ -849,7 +850,7 @@ hppa32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* If a structure has to be returned, set up register 28 to hold its
      address.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, 28, struct_addr);
 
   gp = tdep->find_global_pointer (gdbarch, function);
@@ -969,7 +970,8 @@ static CORE_ADDR
 hppa64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			struct regcache *regcache, CORE_ADDR bp_addr,
 			int nargs, struct value **args, CORE_ADDR sp,
-			int struct_return, CORE_ADDR struct_addr)
+			function_call_return_method return_method,
+			CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -1113,7 +1115,7 @@ hppa64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* If a structure has to be returned, set up GR 28 (%ret0) to hold
      its address.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, HPPA_RET0_REGNUM, struct_addr);
 
   /* Set up GR27 (%dp) to hold the global pointer (gp).  */
diff --git a/gdb/i386-darwin-tdep.c b/gdb/i386-darwin-tdep.c
index 5a1807a..65aed99 100644
--- a/gdb/i386-darwin-tdep.c
+++ b/gdb/i386-darwin-tdep.c
@@ -153,7 +153,8 @@ static CORE_ADDR
 i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			     struct regcache *regcache, CORE_ADDR bp_addr,
 			     int nargs, struct value **args, CORE_ADDR sp,
-			     int struct_return, CORE_ADDR struct_addr)
+			     function_call_return_method return_method,
+			     CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -169,7 +170,7 @@ i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
       int args_space = 0;
       int num_m128 = 0;
 
-      if (struct_return)
+      if (return_method == return_method_struct)
 	{
 	  if (write_pass)
 	    {
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index a34a337..10f26ad 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -2671,7 +2671,8 @@ i386_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr,
 static CORE_ADDR
 i386_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		      struct value **args, CORE_ADDR sp, int struct_return,
+		      struct value **args, CORE_ADDR sp,
+		      function_call_return_method return_method,
 		      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -2695,7 +2696,7 @@ i386_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     {
       int args_space_used = 0;
 
-      if (struct_return)
+      if (return_method == return_method_struct)
 	{
 	  if (write_pass)
 	    {
diff --git a/gdb/ia64-tdep.c b/gdb/ia64-tdep.c
index d381ecc..6cacb2a 100644
--- a/gdb/ia64-tdep.c
+++ b/gdb/ia64-tdep.c
@@ -3673,7 +3673,8 @@ static CORE_ADDR
 ia64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr,
 		      int nargs, struct value **args, CORE_ADDR sp,
-		      int struct_return, CORE_ADDR struct_addr)
+		      function_call_return_method return_method,
+		      CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -3828,11 +3829,9 @@ ia64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     }
 
   /* Store the struct return value in r8 if necessary.  */
-  if (struct_return)
-    {
-      regcache_cooked_write_unsigned (regcache, IA64_GR8_REGNUM,
-				      (ULONGEST) struct_addr);
-    }
+  if (return_method == return_method_struct)
+    regcache_cooked_write_unsigned (regcache, IA64_GR8_REGNUM,
+				    (ULONGEST) struct_addr);
 
   global_pointer = ia64_find_global_pointer (gdbarch, func_addr);
 
diff --git a/gdb/infcall.c b/gdb/infcall.c
index 0c875ea..1b1e7da 100644
--- a/gdb/infcall.c
+++ b/gdb/infcall.c
@@ -1052,8 +1052,7 @@ call_function_by_hand_dummy (struct value *function,
      presumably, the ABI code knows where, in the call dummy, the
      return address should be pointed.  */
   sp = gdbarch_push_dummy_call (gdbarch, function, get_current_regcache (),
-				bp_addr, nargs, args, sp,
-				(return_method == return_method_struct),
+				bp_addr, nargs, args, sp, return_method,
 				struct_addr);
 
   /* Set up a frame ID for the dummy frame so we can pass it to
diff --git a/gdb/iq2000-tdep.c b/gdb/iq2000-tdep.c
index 9f7f35d..fce0a2d 100644
--- a/gdb/iq2000-tdep.c
+++ b/gdb/iq2000-tdep.c
@@ -645,7 +645,8 @@ static CORE_ADDR
 iq2000_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		        struct regcache *regcache, CORE_ADDR bp_addr,
 		        int nargs, struct value **args, CORE_ADDR sp,
-		        int struct_return, CORE_ADDR struct_addr)
+			function_call_return_method return_method,
+			CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   const bfd_byte *val;
@@ -657,7 +658,9 @@ iq2000_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   CORE_ADDR struct_ptr;
 
   /* First determine how much stack space we will need.  */
-  for (i = 0, argreg = E_1ST_ARGREG + (struct_return != 0); i < nargs; i++)
+  for (i = 0, argreg = E_1ST_ARGREG + (return_method == return_method_struct);
+       i < nargs;
+       i++)
     {
       type = value_type (args[i]);
       typelen = TYPE_LENGTH (type);
@@ -716,7 +719,7 @@ iq2000_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   stackspace = 0;
 
   argreg = E_1ST_ARGREG;
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       /* A function that returns a struct will consume one argreg to do so.
        */
diff --git a/gdb/lm32-tdep.c b/gdb/lm32-tdep.c
index 694d30ee..609839d 100644
--- a/gdb/lm32-tdep.c
+++ b/gdb/lm32-tdep.c
@@ -228,7 +228,8 @@ static CORE_ADDR
 lm32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr,
 		      int nargs, struct value **args, CORE_ADDR sp,
-		      int struct_return, CORE_ADDR struct_addr)
+		      function_call_return_method return_method,
+		      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int first_arg_reg = SIM_LM32_R1_REGNUM;
@@ -240,7 +241,7 @@ lm32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* If we're returning a large struct, a pointer to the address to
      store it at is passed as a first hidden parameter.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, first_arg_reg, struct_addr);
       first_arg_reg++;
diff --git a/gdb/m32c-tdep.c b/gdb/m32c-tdep.c
index 6fa2445..841801d 100644
--- a/gdb/m32c-tdep.c
+++ b/gdb/m32c-tdep.c
@@ -2016,7 +2016,8 @@ m32c_reg_arg_type (struct type *type)
 static CORE_ADDR
 m32c_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		      struct value **args, CORE_ADDR sp, int struct_return,
+		      struct value **args, CORE_ADDR sp,
+		      function_call_return_method return_method,
 		      CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -2054,7 +2055,7 @@ m32c_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   /* First, if the function returns an aggregate by value, push a
      pointer to a buffer for it.  This doesn't affect the way
      subsequent arguments are allocated to registers.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       int ptr_len = TYPE_LENGTH (tdep->ptr_voyd);
       sp -= ptr_len;
diff --git a/gdb/m32r-tdep.c b/gdb/m32r-tdep.c
index fd79f3f..fda35bd 100644
--- a/gdb/m32r-tdep.c
+++ b/gdb/m32r-tdep.c
@@ -659,7 +659,8 @@ m32r_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
 static CORE_ADDR
 m32r_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		      struct value **args, CORE_ADDR sp, int struct_return,
+		      struct value **args, CORE_ADDR sp,
+		      function_call_return_method return_method,
 		      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -683,7 +684,7 @@ m32r_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   /* If STRUCT_RETURN is true, then the struct return address (in
      STRUCT_ADDR) will consume the first argument-passing register.
      Both adjust the register count and store that value.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, argreg, struct_addr);
       argreg++;
diff --git a/gdb/m68hc11-tdep.c b/gdb/m68hc11-tdep.c
index b6e8f00..09839ff 100644
--- a/gdb/m68hc11-tdep.c
+++ b/gdb/m68hc11-tdep.c
@@ -1154,7 +1154,8 @@ static CORE_ADDR
 m68hc11_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
                          struct regcache *regcache, CORE_ADDR bp_addr,
                          int nargs, struct value **args, CORE_ADDR sp,
-                         int struct_return, CORE_ADDR struct_addr)
+			 function_call_return_method return_method,
+			 CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int argnum;
@@ -1164,10 +1165,8 @@ m68hc11_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   gdb_byte buf[2];
   
   first_stack_argnum = 0;
-  if (struct_return)
-    {
-      regcache_cooked_write_unsigned (regcache, HARD_D_REGNUM, struct_addr);
-    }
+  if (return_method == return_method_struct)
+    regcache_cooked_write_unsigned (regcache, HARD_D_REGNUM, struct_addr);
   else if (nargs > 0)
     {
       type = value_type (args[0]);
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index a6e9b58..4134c1a 100644
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -492,7 +492,8 @@ m68k_frame_align (struct gdbarch *gdbarch, CORE_ADDR sp)
 static CORE_ADDR
 m68k_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		      struct value **args, CORE_ADDR sp, int struct_return,
+		      struct value **args, CORE_ADDR sp,
+		      function_call_return_method return_method,
 		      CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -522,7 +523,7 @@ m68k_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     }
 
   /* Store struct value address.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       store_unsigned_integer (buf, 4, byte_order, struct_addr);
       regcache->cooked_write (tdep->struct_value_regnum, buf);
diff --git a/gdb/mep-tdep.c b/gdb/mep-tdep.c
index ae9c4de..b0c73f6 100644
--- a/gdb/mep-tdep.c
+++ b/gdb/mep-tdep.c
@@ -2258,7 +2258,7 @@ static CORE_ADDR
 mep_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
                      struct regcache *regcache, CORE_ADDR bp_addr,
                      int argc, struct value **argv, CORE_ADDR sp,
-                     int struct_return,
+		     function_call_return_method return_method,
                      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -2287,7 +2287,7 @@ mep_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* If we're returning a structure by value, push the pointer to the
      buffer as the first argument.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, arg_reg, struct_addr);
       arg_reg++;
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 2c87262..dfff366 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -4495,7 +4495,8 @@ static CORE_ADDR
 mips_eabi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			   struct regcache *regcache, CORE_ADDR bp_addr,
 			   int nargs, struct value **args, CORE_ADDR sp,
-			   int struct_return, CORE_ADDR struct_addr)
+			   function_call_return_method return_method,
+			   CORE_ADDR struct_addr)
 {
   int argreg;
   int float_argreg;
@@ -4541,7 +4542,7 @@ mips_eabi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   float_argreg = mips_fpa0_regnum (gdbarch);
 
   /* The struct_return pointer occupies the first parameter-passing reg.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (mips_debug)
 	fprintf_unfiltered (gdb_stdlog,
@@ -4890,7 +4891,8 @@ static CORE_ADDR
 mips_n32n64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			     struct regcache *regcache, CORE_ADDR bp_addr,
 			     int nargs, struct value **args, CORE_ADDR sp,
-			     int struct_return, CORE_ADDR struct_addr)
+			     function_call_return_method return_method,
+			     CORE_ADDR struct_addr)
 {
   int argreg;
   int float_argreg;
@@ -4933,7 +4935,7 @@ mips_n32n64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   float_argreg = mips_fpa0_regnum (gdbarch);
 
   /* The struct_return pointer occupies the first parameter-passing reg.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (mips_debug)
 	fprintf_unfiltered (gdb_stdlog,
@@ -5347,7 +5349,8 @@ static CORE_ADDR
 mips_o32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			  struct regcache *regcache, CORE_ADDR bp_addr,
 			  int nargs, struct value **args, CORE_ADDR sp,
-			  int struct_return, CORE_ADDR struct_addr)
+			  function_call_return_method return_method,
+			  CORE_ADDR struct_addr)
 {
   int argreg;
   int float_argreg;
@@ -5398,7 +5401,7 @@ mips_o32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   float_argreg = mips_fpa0_regnum (gdbarch);
 
   /* The struct_return pointer occupies the first parameter-passing reg.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (mips_debug)
 	fprintf_unfiltered (gdb_stdlog,
@@ -5872,7 +5875,7 @@ mips_o64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			  struct regcache *regcache, CORE_ADDR bp_addr,
 			  int nargs,
 			  struct value **args, CORE_ADDR sp,
-			  int struct_return, CORE_ADDR struct_addr)
+			  function_call_return_method return_method, CORE_ADDR struct_addr)
 {
   int argreg;
   int float_argreg;
@@ -5920,7 +5923,7 @@ mips_o64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   float_argreg = mips_fpa0_regnum (gdbarch);
 
   /* The struct_return pointer occupies the first parameter-passing reg.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (mips_debug)
 	fprintf_unfiltered (gdb_stdlog,
diff --git a/gdb/mn10300-tdep.c b/gdb/mn10300-tdep.c
index edc99a2..25d73c0 100644
--- a/gdb/mn10300-tdep.c
+++ b/gdb/mn10300-tdep.c
@@ -1191,7 +1191,7 @@ mn10300_push_dummy_call (struct gdbarch *gdbarch,
 			 CORE_ADDR bp_addr, 
 			 int nargs, struct value **args,
 			 CORE_ADDR sp, 
-			 int struct_return,
+			 function_call_return_method return_method,
 			 CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -1211,7 +1211,7 @@ mn10300_push_dummy_call (struct gdbarch *gdbarch,
 
      XXX This doesn't appear to handle pass-by-invisible reference
      arguments.  */
-  regs_used = struct_return ? 1 : 0;
+  regs_used = (return_method == return_method_struct) ? 1 : 0;
   for (len = 0, argnum = 0; argnum < nargs; argnum++)
     {
       arg_len = (TYPE_LENGTH (value_type (args[argnum])) + 3) & ~3;
@@ -1226,7 +1226,7 @@ mn10300_push_dummy_call (struct gdbarch *gdbarch,
   /* Allocate stack space.  */
   sp -= len;
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regs_used = 1;
       regcache_cooked_write_unsigned (regcache, E_D0_REGNUM, struct_addr);
diff --git a/gdb/msp430-tdep.c b/gdb/msp430-tdep.c
index 427f58c..e034713 100644
--- a/gdb/msp430-tdep.c
+++ b/gdb/msp430-tdep.c
@@ -669,7 +669,8 @@ static CORE_ADDR
 msp430_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			struct regcache *regcache, CORE_ADDR bp_addr,
 			int nargs, struct value **args, CORE_ADDR sp,
-			int struct_return, CORE_ADDR struct_addr)
+			function_call_return_method return_method,
+			CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int write_pass;
@@ -699,7 +700,7 @@ msp430_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 	sp = align_down (sp - sp_off, 4);
       sp_off = 0;
 
-      if (struct_return)
+      if (return_method == return_method_struct)
 	{
 	  if (write_pass)
 	    regcache_cooked_write_unsigned (regcache, arg_reg, struct_addr);
diff --git a/gdb/nds32-tdep.c b/gdb/nds32-tdep.c
index 05b82de..9e5ad6a 100644
--- a/gdb/nds32-tdep.c
+++ b/gdb/nds32-tdep.c
@@ -1490,7 +1490,8 @@ static CORE_ADDR
 nds32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		       struct regcache *regcache, CORE_ADDR bp_addr,
 		       int nargs, struct value **args, CORE_ADDR sp,
-		       int struct_return, CORE_ADDR struct_addr)
+		       function_call_return_method return_method,
+		       CORE_ADDR struct_addr)
 {
   const int REND = 6;		/* End for register offset.  */
   int goff = 0;			/* Current gpr offset for argument.  */
@@ -1511,7 +1512,7 @@ nds32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   /* If STRUCT_RETURN is true, then the struct return address (in
      STRUCT_ADDR) will consume the first argument-passing register.
      Both adjust the register count and store that value.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, NDS32_R0_REGNUM, struct_addr);
       goff++;
diff --git a/gdb/nios2-tdep.c b/gdb/nios2-tdep.c
index c972b4b..d6de7e8 100644
--- a/gdb/nios2-tdep.c
+++ b/gdb/nios2-tdep.c
@@ -1811,7 +1811,8 @@ static CORE_ADDR
 nios2_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
                        struct regcache *regcache, CORE_ADDR bp_addr,
                        int nargs, struct value **args, CORE_ADDR sp,
-                       int struct_return, CORE_ADDR struct_addr)
+		       function_call_return_method return_method,
+		       CORE_ADDR struct_addr)
 {
   int argreg;
   int argnum;
@@ -1833,7 +1834,7 @@ nios2_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* The struct_return pointer occupies the first parameter-passing
      register.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, argreg++, struct_addr);
 
   /* Now load as many as possible of the first arguments into
diff --git a/gdb/or1k-tdep.c b/gdb/or1k-tdep.c
index c5104e3..a9ef44b 100644
--- a/gdb/or1k-tdep.c
+++ b/gdb/or1k-tdep.c
@@ -595,7 +595,8 @@ static CORE_ADDR
 or1k_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr,
 		      int nargs, struct value **args, CORE_ADDR sp,
-		      int struct_return, CORE_ADDR struct_addr)
+		      function_call_return_method return_method,
+		      CORE_ADDR struct_addr)
 {
 
   int argreg;
@@ -617,7 +618,7 @@ or1k_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* Location for a returned structure.  This is passed as a silent first
      argument.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, OR1K_FIRST_ARG_REGNUM,
 				      struct_addr);
diff --git a/gdb/ppc-sysv-tdep.c b/gdb/ppc-sysv-tdep.c
index ede666a..aeef8d8 100644
--- a/gdb/ppc-sysv-tdep.c
+++ b/gdb/ppc-sysv-tdep.c
@@ -62,7 +62,8 @@ CORE_ADDR
 ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			      struct regcache *regcache, CORE_ADDR bp_addr,
 			      int nargs, struct value **args, CORE_ADDR sp,
-			      int struct_return, CORE_ADDR struct_addr)
+			      function_call_return_method return_method,
+			      CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -107,7 +108,7 @@ ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
          (which will be passed in r3) is used for struct return
          address.  In that case we should advance one word and start
          from r4 register to copy parameters.  */
-      if (struct_return)
+      if (return_method == return_method_struct)
 	{
 	  if (write_pass)
 	    regcache_cooked_write_signed (regcache,
@@ -1540,7 +1541,8 @@ ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
 				struct value *function,
 				struct regcache *regcache, CORE_ADDR bp_addr,
 				int nargs, struct value **args, CORE_ADDR sp,
-				int struct_return, CORE_ADDR struct_addr)
+				function_call_return_method return_method,
+				CORE_ADDR struct_addr)
 {
   CORE_ADDR func_addr = find_function_addr (function, NULL);
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
@@ -1624,7 +1626,7 @@ ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
          containing the address of that struct..  In that case we
          should advance one word and start from r4 register to copy
          parameters.  This also consumes one on-stack parameter slot.  */
-      if (struct_return)
+      if (return_method == return_method_struct)
 	ppc64_sysv_abi_push_integer (gdbarch, struct_addr, &argpos);
 
       for (argno = 0; argno < nargs; argno++)
diff --git a/gdb/ppc-tdep.h b/gdb/ppc-tdep.h
index dbafe22..dbfa695 100644
--- a/gdb/ppc-tdep.h
+++ b/gdb/ppc-tdep.h
@@ -39,20 +39,17 @@ enum return_value_convention ppc_sysv_abi_broken_return_value (struct gdbarch *g
 							       struct regcache *regcache,
 							       gdb_byte *readbuf,
 							       const gdb_byte *writebuf);
-CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
-					struct value *function,
-					struct regcache *regcache,
-					CORE_ADDR bp_addr, int nargs,
-					struct value **args, CORE_ADDR sp,
-					int struct_return,
-					CORE_ADDR struct_addr);
-CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
-					  struct value *function,
-					  struct regcache *regcache,
-					  CORE_ADDR bp_addr, int nargs,
-					  struct value **args, CORE_ADDR sp,
-					  int struct_return,
-					  CORE_ADDR struct_addr);
+
+CORE_ADDR ppc_sysv_abi_push_dummy_call
+  (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
+   CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
+   function_call_return_method return_method, CORE_ADDR struct_addr);
+
+CORE_ADDR ppc64_sysv_abi_push_dummy_call
+  (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache,
+   CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp,
+   function_call_return_method return_method, CORE_ADDR struct_addr);
+
 enum return_value_convention ppc64_sysv_abi_return_value (struct gdbarch *gdbarch,
 							  struct value *function,
 							  struct type *valtype,
diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c
index 943af95..408ab0a 100644
--- a/gdb/riscv-tdep.c
+++ b/gdb/riscv-tdep.c
@@ -2374,7 +2374,7 @@ riscv_push_dummy_call (struct gdbarch *gdbarch,
 		       int nargs,
 		       struct value **args,
 		       CORE_ADDR sp,
-		       int struct_return,
+		       function_call_return_method return_method,
 		       CORE_ADDR struct_addr)
 {
   int i;
@@ -2394,7 +2394,7 @@ riscv_push_dummy_call (struct gdbarch *gdbarch,
     ftype = check_typedef (TYPE_TARGET_TYPE (ftype));
 
   /* We'll use register $a0 if we're returning a struct.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     ++call_info.int_regs.next_regnum;
 
   for (i = 0; i < nargs; ++i)
@@ -2425,7 +2425,7 @@ riscv_push_dummy_call (struct gdbarch *gdbarch,
 	       (riscv_has_fp_abi (gdbarch) ? "is" : "is not"));
       fprintf_unfiltered (gdb_stdlog, ": xlen: %d\n: flen: %d\n",
 	       call_info.xlen, call_info.flen);
-      if (struct_return)
+      if (return_method == return_method_struct)
 	fprintf_unfiltered (gdb_stdlog,
 			    "[*] struct return pointer in register $A0\n");
       for (i = 0; i < nargs; ++i)
@@ -2452,7 +2452,7 @@ riscv_push_dummy_call (struct gdbarch *gdbarch,
 
   /* Now load the argument into registers, or onto the stack.  */
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       gdb_byte buf[sizeof (LONGEST)];
 
diff --git a/gdb/rl78-tdep.c b/gdb/rl78-tdep.c
index ace01b1..fe8c2de 100644
--- a/gdb/rl78-tdep.c
+++ b/gdb/rl78-tdep.c
@@ -1336,7 +1336,8 @@ static CORE_ADDR
 rl78_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr,
 		      int nargs, struct value **args, CORE_ADDR sp,
-		      int struct_return, CORE_ADDR struct_addr)
+		      function_call_return_method return_method,
+		      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   gdb_byte buf[4];
@@ -1355,7 +1356,7 @@ rl78_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     }
 
   /* Store struct value address.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       store_unsigned_integer (buf, 2, byte_order, struct_addr);
       sp -= 2;
diff --git a/gdb/rs6000-aix-tdep.c b/gdb/rs6000-aix-tdep.c
index 4528cb2..7497a5e 100644
--- a/gdb/rs6000-aix-tdep.c
+++ b/gdb/rs6000-aix-tdep.c
@@ -285,7 +285,8 @@ static CORE_ADDR
 rs6000_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			struct regcache *regcache, CORE_ADDR bp_addr,
 			int nargs, struct value **args, CORE_ADDR sp,
-			int struct_return, CORE_ADDR struct_addr)
+			function_call_return_method return_method,
+			CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -316,7 +317,7 @@ rs6000_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
      (which will be passed in r3) is used for struct return address.
      In that case we should advance one word and start from r4
      register to copy parameters.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_raw_write_unsigned (regcache, tdep->ppc_gp0_regnum + 3,
 				   struct_addr);
diff --git a/gdb/rs6000-lynx178-tdep.c b/gdb/rs6000-lynx178-tdep.c
index 44cd0d0..85d80b9 100644
--- a/gdb/rs6000-lynx178-tdep.c
+++ b/gdb/rs6000-lynx178-tdep.c
@@ -33,7 +33,8 @@ rs6000_lynx178_push_dummy_call (struct gdbarch *gdbarch,
 				struct value *function,
 				struct regcache *regcache, CORE_ADDR bp_addr,
 				int nargs, struct value **args, CORE_ADDR sp,
-				int struct_return, CORE_ADDR struct_addr)
+				function_call_return_method return_method,
+				CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -63,7 +64,7 @@ rs6000_lynx178_push_dummy_call (struct gdbarch *gdbarch,
      (which will be passed in r3) is used for struct return address.
      In that case we should advance one word and start from r4
      register to copy parameters.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_raw_write_unsigned (regcache, tdep->ppc_gp0_regnum + 3,
 				   struct_addr);
diff --git a/gdb/rx-tdep.c b/gdb/rx-tdep.c
index 94d5791..2f797b1 100644
--- a/gdb/rx-tdep.c
+++ b/gdb/rx-tdep.c
@@ -784,7 +784,8 @@ rx_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
 static CORE_ADDR
 rx_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		    struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		    struct value **args, CORE_ADDR sp, int struct_return,
+		    struct value **args, CORE_ADDR sp,
+		    function_call_return_method return_method,
 		    CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -830,7 +831,7 @@ rx_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 	sp = align_down (sp - sp_off, 4);
       sp_off = 0;
 
-      if (struct_return)
+      if (return_method == return_method_struct)
 	{
 	  struct type *return_type = TYPE_TARGET_TYPE (func_type);
 
@@ -854,7 +855,8 @@ rx_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 	  struct type *arg_type = check_typedef (value_type (arg));
 	  ULONGEST arg_size = TYPE_LENGTH (arg_type);
 
-	  if (i == 0 && struct_addr != 0 && !struct_return
+	  if (i == 0 && struct_addr != 0
+	      && return_method != return_method_struct
 	      && TYPE_CODE (arg_type) == TYPE_CODE_PTR
 	      && extract_unsigned_integer (arg_bits, 4,
 					   byte_order) == struct_addr)
diff --git a/gdb/s390-tdep.c b/gdb/s390-tdep.c
index 23689aa..33bec57 100644
--- a/gdb/s390-tdep.c
+++ b/gdb/s390-tdep.c
@@ -1865,7 +1865,8 @@ static CORE_ADDR
 s390_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		      struct regcache *regcache, CORE_ADDR bp_addr,
 		      int nargs, struct value **args, CORE_ADDR sp,
-		      int struct_return, CORE_ADDR struct_addr)
+		      function_call_return_method return_method,
+		      CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   int word_size = gdbarch_ptr_bit (gdbarch) / 8;
@@ -1879,7 +1880,7 @@ s390_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     ftype = check_typedef (TYPE_TARGET_TYPE (ftype));
 
   arg_prep.copy = sp;
-  arg_prep.gr = struct_return ? 3 : 2;
+  arg_prep.gr = (return_method == return_method_struct) ? 3 : 2;
   arg_prep.fr = 0;
   arg_prep.vr = 0;
   arg_prep.argp = 0;
@@ -1908,7 +1909,7 @@ s390_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     error (_("Stack overflow"));
 
   /* Pass the structure return address in general register 2.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, S390_R2_REGNUM, struct_addr);
 
   /* Initialize arg_state for "write mode".  */
diff --git a/gdb/score-tdep.c b/gdb/score-tdep.c
index b2887c5..77299fc 100644
--- a/gdb/score-tdep.c
+++ b/gdb/score-tdep.c
@@ -511,7 +511,8 @@ static CORE_ADDR
 score_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
                        struct regcache *regcache, CORE_ADDR bp_addr,
                        int nargs, struct value **args, CORE_ADDR sp,
-                       int struct_return, CORE_ADDR struct_addr)
+		       function_call_return_method return_method,
+		       CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int argnum;
@@ -535,7 +536,7 @@ score_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   /* Step 3, Check if struct return then save the struct address to
      r4 and increase the stack_offset by 4.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, argreg++, struct_addr);
       stack_offset += SCORE_REGSIZE;
diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index fe64cf9..7a6a09e 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -1062,7 +1062,7 @@ sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
 			struct regcache *regcache,
 			CORE_ADDR bp_addr, int nargs,
 			struct value **args,
-			CORE_ADDR sp, int struct_return,
+			CORE_ADDR sp, function_call_return_method return_method,
 			CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -1175,7 +1175,7 @@ sh_push_dummy_call_fpu (struct gdbarch *gdbarch,
 	}
     }
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (sh_is_renesas_calling_convention (func_type))
 	/* If the function uses the Renesas ABI, subtract another 4 bytes from
@@ -1204,7 +1204,8 @@ sh_push_dummy_call_nofpu (struct gdbarch *gdbarch,
 			  struct regcache *regcache,
 			  CORE_ADDR bp_addr,
 			  int nargs, struct value **args,
-			  CORE_ADDR sp, int struct_return,
+			  CORE_ADDR sp,
+			  function_call_return_method return_method,
 			  CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -1278,7 +1279,7 @@ sh_push_dummy_call_nofpu (struct gdbarch *gdbarch,
 	}
     }
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       if (sh_is_renesas_calling_convention (func_type))
 	/* If the function uses the Renesas ABI, subtract another 4 bytes from
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 7a50a8d..fae037c 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -612,7 +612,8 @@ sparc32_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp,
 static CORE_ADDR
 sparc32_store_arguments (struct regcache *regcache, int nargs,
 			 struct value **args, CORE_ADDR sp,
-			 int struct_return, CORE_ADDR struct_addr)
+			 function_call_return_method return_method,
+			 CORE_ADDR struct_addr)
 {
   struct gdbarch *gdbarch = regcache->arch ();
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -697,7 +698,7 @@ sparc32_store_arguments (struct regcache *regcache, int nargs,
 
   gdb_assert (element == num_elements);
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       gdb_byte buf[4];
 
@@ -712,16 +713,18 @@ static CORE_ADDR
 sparc32_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			 struct regcache *regcache, CORE_ADDR bp_addr,
 			 int nargs, struct value **args, CORE_ADDR sp,
-			 int struct_return, CORE_ADDR struct_addr)
+			 function_call_return_method return_method,
+			 CORE_ADDR struct_addr)
 {
-  CORE_ADDR call_pc = (struct_return ? (bp_addr - 12) : (bp_addr - 8));
+  CORE_ADDR call_pc = (return_method == return_method_struct
+		       ? (bp_addr - 12) : (bp_addr - 8));
 
   /* Set return address.  */
   regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, call_pc);
 
   /* Set up function arguments.  */
-  sp = sparc32_store_arguments (regcache, nargs, args, sp,
-				struct_return, struct_addr);
+  sp = sparc32_store_arguments (regcache, nargs, args, sp, return_method,
+				struct_addr);
 
   /* Allocate the 16-word window save area.  */
   sp -= 16 * 4;
diff --git a/gdb/sparc64-tdep.c b/gdb/sparc64-tdep.c
index b1ee6c1..26e3739 100644
--- a/gdb/sparc64-tdep.c
+++ b/gdb/sparc64-tdep.c
@@ -1367,7 +1367,8 @@ sparc64_extract_floating_fields (struct regcache *regcache, struct type *type,
 static CORE_ADDR
 sparc64_store_arguments (struct regcache *regcache, int nargs,
 			 struct value **args, CORE_ADDR sp,
-			 int struct_return, CORE_ADDR struct_addr)
+			 function_call_return_method return_method,
+			 CORE_ADDR struct_addr)
 {
   struct gdbarch *gdbarch = regcache->arch ();
   /* Number of extended words in the "parameter array".  */
@@ -1381,7 +1382,7 @@ sparc64_store_arguments (struct regcache *regcache, int nargs,
   /* First we calculate the number of extended words in the "parameter
      array".  While doing so we also convert some of the arguments.  */
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     num_elements++;
 
   for (i = 0; i < nargs; i++)
@@ -1477,7 +1478,7 @@ sparc64_store_arguments (struct regcache *regcache, int nargs,
      contents of any unused memory or registers in the "parameter
      array" are undefined.  */
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr);
       element++;
@@ -1621,14 +1622,15 @@ static CORE_ADDR
 sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 			 struct regcache *regcache, CORE_ADDR bp_addr,
 			 int nargs, struct value **args, CORE_ADDR sp,
-			 int struct_return, CORE_ADDR struct_addr)
+			 function_call_return_method return_method,
+			 CORE_ADDR struct_addr)
 {
   /* Set return address.  */
   regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8);
 
   /* Set up function arguments.  */
-  sp = sparc64_store_arguments (regcache, nargs, args, sp,
-				struct_return, struct_addr);
+  sp = sparc64_store_arguments (regcache, nargs, args, sp, return_method,
+				struct_addr);
 
   /* Allocate the register save area.  */
   sp -= 16 * 8;
diff --git a/gdb/spu-tdep.c b/gdb/spu-tdep.c
index 6ae37f5..1020167 100644
--- a/gdb/spu-tdep.c
+++ b/gdb/spu-tdep.c
@@ -1401,7 +1401,8 @@ static CORE_ADDR
 spu_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		     struct regcache *regcache, CORE_ADDR bp_addr,
 		     int nargs, struct value **args, CORE_ADDR sp,
-		     int struct_return, CORE_ADDR struct_addr)
+		     function_call_return_method return_method,
+		     CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   CORE_ADDR sp_delta;
@@ -1418,7 +1419,7 @@ spu_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   /* If STRUCT_RETURN is true, then the struct return address (in
      STRUCT_ADDR) will consume the first argument-passing register.
      Both adjust the register count and store that value.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       memset (buf, 0, sizeof buf);
       store_unsigned_integer (buf, 4, byte_order, SPUADDR_ADDR (struct_addr));
diff --git a/gdb/tic6x-tdep.c b/gdb/tic6x-tdep.c
index 13ad67f..b83074a 100644
--- a/gdb/tic6x-tdep.c
+++ b/gdb/tic6x-tdep.c
@@ -875,7 +875,8 @@ static CORE_ADDR
 tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		       struct regcache *regcache, CORE_ADDR bp_addr,
 		       int nargs, struct value **args, CORE_ADDR sp,
-		       int struct_return, CORE_ADDR struct_addr)
+		       function_call_return_method return_method,
+		       CORE_ADDR struct_addr)
 {
   int argreg = 0;
   int argnum;
@@ -894,7 +895,7 @@ tic6x_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   /* The caller must pass an argument in A3 containing a destination address
      for the returned value.  The callee returns the object by copying it to
      the address in A3.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, 3, struct_addr);
 
   /* Determine the type of this function.  */
diff --git a/gdb/tilegx-tdep.c b/gdb/tilegx-tdep.c
index 9ed6966..e2e844b 100644
--- a/gdb/tilegx-tdep.c
+++ b/gdb/tilegx-tdep.c
@@ -281,7 +281,7 @@ tilegx_push_dummy_call (struct gdbarch *gdbarch,
 			struct regcache *regcache,
 			CORE_ADDR bp_addr, int nargs,
 			struct value **args,
-			CORE_ADDR sp, int struct_return,
+			CORE_ADDR sp, function_call_return_method return_method,
 			CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -293,7 +293,7 @@ tilegx_push_dummy_call (struct gdbarch *gdbarch,
 
   /* If struct_return is 1, then the struct return address will
      consume one argument-passing register.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, argreg++, struct_addr);
 
   /* Arguments are passed in R0 - R9, and as soon as an argument
diff --git a/gdb/v850-tdep.c b/gdb/v850-tdep.c
index 119fb6d..cc582ca 100644
--- a/gdb/v850-tdep.c
+++ b/gdb/v850-tdep.c
@@ -1013,7 +1013,7 @@ v850_push_dummy_call (struct gdbarch *gdbarch,
 		      int nargs,
 		      struct value **args,
 		      CORE_ADDR sp,
-		      int struct_return,
+		      function_call_return_method return_method,
 		      CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -1039,7 +1039,7 @@ v850_push_dummy_call (struct gdbarch *gdbarch,
 
   argreg = E_ARG0_REGNUM;
   /* The struct_return pointer occupies the first parameter register.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, argreg++, struct_addr);
 
   /* Now load as many as possible of the first arguments into
diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c
index 21f2066..797758b 100644
--- a/gdb/vax-tdep.c
+++ b/gdb/vax-tdep.c
@@ -141,7 +141,8 @@ vax_store_arguments (struct regcache *regcache, int nargs,
 static CORE_ADDR
 vax_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		     struct regcache *regcache, CORE_ADDR bp_addr, int nargs,
-		     struct value **args, CORE_ADDR sp, int struct_return,
+		     struct value **args, CORE_ADDR sp,
+		     function_call_return_method return_method,
 		     CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -152,7 +153,7 @@ vax_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   sp = vax_store_arguments (regcache, nargs, args, sp);
 
   /* Store return value address.  */
-  if (struct_return)
+  if (return_method == return_method_struct)
     regcache_cooked_write_unsigned (regcache, VAX_R1_REGNUM, struct_addr);
 
   /* Store return address in the PC slot.  */
diff --git a/gdb/xstormy16-tdep.c b/gdb/xstormy16-tdep.c
index b3c2ba6..82ce025 100644
--- a/gdb/xstormy16-tdep.c
+++ b/gdb/xstormy16-tdep.c
@@ -226,7 +226,8 @@ xstormy16_push_dummy_call (struct gdbarch *gdbarch,
 			   struct regcache *regcache,
 			   CORE_ADDR bp_addr, int nargs,
 			   struct value **args,
-			   CORE_ADDR sp, int struct_return,
+			   CORE_ADDR sp,
+			   function_call_return_method return_method,
 			   CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -236,9 +237,9 @@ xstormy16_push_dummy_call (struct gdbarch *gdbarch,
   int typelen, slacklen;
   gdb_byte buf[xstormy16_pc_size];
 
-  /* If struct_return is true, then the struct return address will
-     consume one argument-passing register.  */
-  if (struct_return)
+  /* If returning a struct using target ABI method, then the struct return
+     address will consume one argument-passing register.  */
+  if (return_method == return_method_struct)
     {
       regcache_cooked_write_unsigned (regcache, E_PTR_RET_REGNUM, struct_addr);
       argreg++;
diff --git a/gdb/xtensa-tdep.c b/gdb/xtensa-tdep.c
index 4f29557..af8b8c3 100644
--- a/gdb/xtensa-tdep.c
+++ b/gdb/xtensa-tdep.c
@@ -1685,7 +1685,7 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
 			int nargs,
 			struct value **args,
 			CORE_ADDR sp,
-			int struct_return,
+			function_call_return_method return_method,
 			CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
@@ -1715,9 +1715,9 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
   if (xtensa_debug_level > 3)
     {
       DEBUGINFO ("[xtensa_push_dummy_call] nargs = %d\n", nargs);
-      DEBUGINFO ("[xtensa_push_dummy_call] sp=0x%x, struct_return=%d, "
+      DEBUGINFO ("[xtensa_push_dummy_call] sp=0x%x, return_method=%d, "
 		 "struct_addr=0x%x\n",
-		 (int) sp, (int) struct_return, (int) struct_addr);
+		 (int) sp, (int) return_method, (int) struct_addr);
 
       for (int i = 0; i < nargs; i++)
         {
@@ -1751,7 +1751,7 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
   size = 0;
   onstack_size = 0;
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     size = REGISTER_SIZE;
 
   for (int i = 0; i < nargs; i++)
@@ -1828,7 +1828,7 @@ xtensa_push_dummy_call (struct gdbarch *gdbarch,
 
   /* Second Loop: Load arguments.  */
 
-  if (struct_return)
+  if (return_method == return_method_struct)
     {
       store_unsigned_integer (buf, REGISTER_SIZE, byte_order, struct_addr);
       regcache->cooked_write (ARG_1ST (gdbarch), buf);